drivers/scsi/lpfc/lpfc_init.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2017-2019 Broadcom. All Rights Reserved. The term *
   5  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  *
   6  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   7  * EMULEX and SLI are trademarks of Emulex.                        *
   8  * www.broadcom.com                                                *
   9  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10  *                                                                 *
  11  * This program is free software; you can redistribute it and/or   *
  12  * modify it under the terms of version 2 of the GNU General       *
  13  * Public License as published by the Free Software Foundation.    *
  14  * This program is distributed in the hope that it will be useful. *
  15  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20  * more details, a copy of which can be found in the file COPYING  *
  21  * included with this package.                                     *
  22  *******************************************************************/
  23
  24 #include <linux/blkdev.h>
  25 #include <linux/delay.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/idr.h>
  28 #include <linux/interrupt.h>
  29 #include <linux/module.h>
  30 #include <linux/kthread.h>
  31 #include <linux/pci.h>
  32 #include <linux/spinlock.h>
  33 #include <linux/ctype.h>
  34 #include <linux/aer.h>
  35 #include <linux/slab.h>
  36 #include <linux/firmware.h>
  37 #include <linux/miscdevice.h>
  38 #include <linux/percpu.h>
  39 #include <linux/msi.h>
  40 #include <linux/irq.h>
  41 #include <linux/bitops.h>
  42 #include <linux/crash_dump.h>
  43 #include <linux/cpu.h>
  44 #include <linux/cpuhotplug.h>
  45
  46 #include <scsi/scsi.h>
  47 #include <scsi/scsi_device.h>
  48 #include <scsi/scsi_host.h>
  49 #include <scsi/scsi_transport_fc.h>
  50 #include <scsi/scsi_tcq.h>
  51 #include <scsi/fc/fc_fs.h>
  52
  53 #include <linux/nvme-fc-driver.h>
  54
  55 #include "lpfc_hw4.h"
  56 #include "lpfc_hw.h"
  57 #include "lpfc_sli.h"
  58 #include "lpfc_sli4.h"
  59 #include "lpfc_nl.h"
  60 #include "lpfc_disc.h"
  61 #include "lpfc.h"
  62 #include "lpfc_scsi.h"
  63 #include "lpfc_nvme.h"
  64 #include "lpfc_nvmet.h"
  65 #include "lpfc_logmsg.h"
  66 #include "lpfc_crtn.h"
  67 #include "lpfc_vport.h"
  68 #include "lpfc_version.h"
  69 #include "lpfc_ids.h"
  70
  71 static enum cpuhp_state lpfc_cpuhp_state;
  72 /* Used when mapping IRQ vectors in a driver centric manner */
  73 static uint32_t lpfc_present_cpu;
  74
  75 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
  76 static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
  77 static void lpfc_cpuhp_add(struct lpfc_hba *phba);
  78 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  79 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  80 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  81 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  82 static int lpfc_setup_endian_order(struct lpfc_hba *);
  83 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  84 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  85 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  86 static void lpfc_init_sgl_list(struct lpfc_hba *);
  87 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  88 static void lpfc_free_active_sgl(struct lpfc_hba *);
  89 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  90 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  91 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  92 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  93 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  94 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  95 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  96 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  97 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  98 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
  99
 100 static struct scsi_transport_template *lpfc_transport_template = NULL;
 101 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
 102 static DEFINE_IDR(lpfc_hba_index);
 103 #define LPFC_NVMET_BUF_POST 254
 104
 105 /**
 106  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 107  * @phba: pointer to lpfc hba data structure.
 108  *
 109  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 110  * mailbox command. It retrieves the revision information from the HBA and
 111  * collects the Vital Product Data (VPD) about the HBA for preparing the
 112  * configuration of the HBA.
 113  *
 114  * Return codes:
 115  *   0 - success.
 116  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 117  *   Any other value - indicates an error.
 118  **/
 119 int
 120 lpfc_config_port_prep(struct lpfc_hba *phba)
 121 {
 122         lpfc_vpd_t *vp = &phba->vpd;
 123         int i = 0, rc;
 124         LPFC_MBOXQ_t *pmb;
 125         MAILBOX_t *mb;
 126         char *lpfc_vpd_data = NULL;
 127         uint16_t offset = 0;
 128         static char licensed[56] =
 129                     "key unlock for use with gnu public licensed code only\0";
 130         static int init_key = 1;
 131
 132         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 133         if (!pmb) {
 134                 phba->link_state = LPFC_HBA_ERROR;
 135                 return -ENOMEM;
 136         }
 137
 138         mb = &pmb->u.mb;
 139         phba->link_state = LPFC_INIT_MBX_CMDS;
 140
 141         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 142                 if (init_key) {
 143                         uint32_t *ptext = (uint32_t *) licensed;
 144
 145                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 146                                 *ptext = cpu_to_be32(*ptext);
 147                         init_key = 0;
 148                 }
 149
 150                 lpfc_read_nv(phba, pmb);
 151                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 152                         sizeof (mb->un.varRDnvp.rsvd3));
 153                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 154                          sizeof (licensed));
 155
 156                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 157
 158                 if (rc != MBX_SUCCESS) {
 159                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 160                                         "0324 Config Port initialization "
 161                                         "error, mbxCmd x%x READ_NVPARM, "
 162                                         "mbxStatus x%x\n",
 163                                         mb->mbxCommand, mb->mbxStatus);
 164                         mempool_free(pmb, phba->mbox_mem_pool);
 165                         return -ERESTART;
 166                 }
 167                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 168                        sizeof(phba->wwnn));
 169                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 170                        sizeof(phba->wwpn));
 171         }
 172
 173         /*
 174          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 175          * which was already set in lpfc_get_cfgparam()
 176          */
 177         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 178
 179         /* Setup and issue mailbox READ REV command */
 180         lpfc_read_rev(phba, pmb);
 181         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 182         if (rc != MBX_SUCCESS) {
 183                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 184                                 "0439 Adapter failed to init, mbxCmd x%x "
 185                                 "READ_REV, mbxStatus x%x\n",
 186                                 mb->mbxCommand, mb->mbxStatus);
 187                 mempool_free( pmb, phba->mbox_mem_pool);
 188                 return -ERESTART;
 189         }
 190
 191
 192         /*
 193          * The value of rr must be 1 since the driver set the cv field to 1.
 194          * This setting requires the FW to set all revision fields.
 195          */
 196         if (mb->un.varRdRev.rr == 0) {
 197                 vp->rev.rBit = 0;
 198                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 199                                 "0440 Adapter failed to init, READ_REV has "
 200                                 "missing revision information.\n");
 201                 mempool_free(pmb, phba->mbox_mem_pool);
 202                 return -ERESTART;
 203         }
 204
 205         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 206                 mempool_free(pmb, phba->mbox_mem_pool);
 207                 return -EINVAL;
 208         }
 209
 210         /* Save information as VPD data */
 211         vp->rev.rBit = 1;
 212         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 213         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 214         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 215         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 216         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 217         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 218         vp->rev.smRev = mb->un.varRdRev.smRev;
 219         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 220         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 221         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 222         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 223         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 224         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 225         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 226         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 227
 228         /* If the sli feature level is less then 9, we must
 229          * tear down all RPIs and VPIs on link down if NPIV
 230          * is enabled.
 231          */
 232         if (vp->rev.feaLevelHigh < 9)
 233                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 234
 235         if (lpfc_is_LC_HBA(phba->pcidev->device))
 236                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 237                                                 sizeof (phba->RandomData));
 238
 239         /* Get adapter VPD information */
 240         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 241         if (!lpfc_vpd_data)
 242                 goto out_free_mbox;
 243         do {
 244                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 245                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 246
 247                 if (rc != MBX_SUCCESS) {
 248                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 249                                         "0441 VPD not present on adapter, "
 250                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 251                                         mb->mbxCommand, mb->mbxStatus);
 252                         mb->un.varDmp.word_cnt = 0;
 253                 }
 254                 /* dump mem may return a zero when finished or we got a
 255                  * mailbox error, either way we are done.
 256                  */
 257                 if (mb->un.varDmp.word_cnt == 0)
 258                         break;
 259                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 260                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 261                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 262                                       lpfc_vpd_data + offset,
 263                                       mb->un.varDmp.word_cnt);
 264                 offset += mb->un.varDmp.word_cnt;
 265         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 266         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 267
 268         kfree(lpfc_vpd_data);
 269 out_free_mbox:
 270         mempool_free(pmb, phba->mbox_mem_pool);
 271         return 0;
 272 }
 273
 274 /**
 275  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 276  * @phba: pointer to lpfc hba data structure.
 277  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 278  *
 279  * This is the completion handler for driver's configuring asynchronous event
 280  * mailbox command to the device. If the mailbox command returns successfully,
 281  * it will set internal async event support flag to 1; otherwise, it will
 282  * set internal async event support flag to 0.
 283  **/
 284 static void
 285 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 286 {
 287         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 288                 phba->temp_sensor_support = 1;
 289         else
 290                 phba->temp_sensor_support = 0;
 291         mempool_free(pmboxq, phba->mbox_mem_pool);
 292         return;
 293 }
 294
 295 /**
 296  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 297  * @phba: pointer to lpfc hba data structure.
 298  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 299  *
 300  * This is the completion handler for dump mailbox command for getting
 301  * wake up parameters. When this command complete, the response contain
 302  * Option rom version of the HBA. This function translate the version number
 303  * into a human readable string and store it in OptionROMVersion.
 304  **/
 305 static void
 306 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 307 {
 308         struct prog_id *prg;
 309         uint32_t prog_id_word;
 310         char dist = ' ';
 311         /* character array used for decoding dist type. */
 312         char dist_char[] = "nabx";
 313
 314         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 315                 mempool_free(pmboxq, phba->mbox_mem_pool);
 316                 return;
 317         }
 318
 319         prg = (struct prog_id *) &prog_id_word;
 320
 321         /* word 7 contain option rom version */
 322         prog_id_word = pmboxq->u.mb.un.varWords[7];
 323
 324         /* Decode the Option rom version word to a readable string */
 325         if (prg->dist < 4)
 326                 dist = dist_char[prg->dist];
 327
 328         if ((prg->dist == 3) && (prg->num == 0))
 329                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 330                         prg->ver, prg->rev, prg->lev);
 331         else
 332                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 333                         prg->ver, prg->rev, prg->lev,
 334                         dist, prg->num);
 335         mempool_free(pmboxq, phba->mbox_mem_pool);
 336         return;
 337 }
 338
 339 /**
 340  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 341  *      cfg_soft_wwnn, cfg_soft_wwpn
 342  * @vport: pointer to lpfc vport data structure.
 343  *
 344  *
 345  * Return codes
 346  *   None.
 347  **/
 348 void
 349 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 350 {
 351         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 352         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 353
 354         /* If the soft name exists then update it using the service params */
 355         if (vport->phba->cfg_soft_wwnn)
 356                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 357                            vport->fc_sparam.nodeName.u.wwn);
 358         if (vport->phba->cfg_soft_wwpn)
 359                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 360                            vport->fc_sparam.portName.u.wwn);
 361
 362         /*
 363          * If the name is empty or there exists a soft name
 364          * then copy the service params name, otherwise use the fc name
 365          */
 366         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 367                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 368                         sizeof(struct lpfc_name));
 369         else
 370                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 371                         sizeof(struct lpfc_name));
 372
 373         /*
 374          * If the port name has changed, then set the Param changes flag
 375          * to unreg the login
 376          */
 377         if (vport->fc_portname.u.wwn[0] != 0 &&
 378                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 379                         sizeof(struct lpfc_name)))
 380                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 381
 382         if (vport->fc_portname.u.wwn[0] == 0 ||
 383             vport->phba->cfg_soft_wwpn ||
 384             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 385             vport->vport_flag & FAWWPN_SET) {
 386                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 387                         sizeof(struct lpfc_name));
 388                 vport->vport_flag &= ~FAWWPN_SET;
 389                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 390                         vport->vport_flag |= FAWWPN_SET;
 391         }
 392         else
 393                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 394                         sizeof(struct lpfc_name));
 395 }
 396
 397 /**
 398  * lpfc_config_port_post - Perform lpfc initialization after config port
 399  * @phba: pointer to lpfc hba data structure.
 400  *
 401  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 402  * command call. It performs all internal resource and state setups on the
 403  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 404  * ELS ring timers, etc.
 405  *
 406  * Return codes
 407  *   0 - success.
 408  *   Any other value - error.
 409  **/
 410 int
 411 lpfc_config_port_post(struct lpfc_hba *phba)
 412 {
 413         struct lpfc_vport *vport = phba->pport;
 414         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 415         LPFC_MBOXQ_t *pmb;
 416         MAILBOX_t *mb;
 417         struct lpfc_dmabuf *mp;
 418         struct lpfc_sli *psli = &phba->sli;
 419         uint32_t status, timeout;
 420         int i, j;
 421         int rc;
 422
 423         spin_lock_irq(&phba->hbalock);
 424         /*
 425          * If the Config port completed correctly the HBA is not
 426          * over heated any more.
 427          */
 428         if (phba->over_temp_state == HBA_OVER_TEMP)
 429                 phba->over_temp_state = HBA_NORMAL_TEMP;
 430         spin_unlock_irq(&phba->hbalock);
 431
 432         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 433         if (!pmb) {
 434                 phba->link_state = LPFC_HBA_ERROR;
 435                 return -ENOMEM;
 436         }
 437         mb = &pmb->u.mb;
 438
 439         /* Get login parameters for NID.  */
 440         rc = lpfc_read_sparam(phba, pmb, 0);
 441         if (rc) {
 442                 mempool_free(pmb, phba->mbox_mem_pool);
 443                 return -ENOMEM;
 444         }
 445
 446         pmb->vport = vport;
 447         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 448                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 449                                 "0448 Adapter failed init, mbxCmd x%x "
 450                                 "READ_SPARM mbxStatus x%x\n",
 451                                 mb->mbxCommand, mb->mbxStatus);
 452                 phba->link_state = LPFC_HBA_ERROR;
 453                 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 454                 mempool_free(pmb, phba->mbox_mem_pool);
 455                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 456                 kfree(mp);
 457                 return -EIO;
 458         }
 459
 460         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 461
 462         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 463         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 464         kfree(mp);
 465         pmb->ctx_buf = NULL;
 466         lpfc_update_vport_wwn(vport);
 467
 468         /* Update the fc_host data structures with new wwn. */
 469         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 470         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 471         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 472
 473         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 474         /* This should be consolidated into parse_vpd ? - mr */
 475         if (phba->SerialNumber[0] == 0) {
 476                 uint8_t *outptr;
 477
 478                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 479                 for (i = 0; i < 12; i++) {
 480                         status = *outptr++;
 481                         j = ((status & 0xf0) >> 4);
 482                         if (j <= 9)
 483                                 phba->SerialNumber[i] =
 484                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 485                         else
 486                                 phba->SerialNumber[i] =
 487                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 488                         i++;
 489                         j = (status & 0xf);
 490                         if (j <= 9)
 491                                 phba->SerialNumber[i] =
 492                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 493                         else
 494                                 phba->SerialNumber[i] =
 495                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 496                 }
 497         }
 498
 499         lpfc_read_config(phba, pmb);
 500         pmb->vport = vport;
 501         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 502                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 503                                 "0453 Adapter failed to init, mbxCmd x%x "
 504                                 "READ_CONFIG, mbxStatus x%x\n",
 505                                 mb->mbxCommand, mb->mbxStatus);
 506                 phba->link_state = LPFC_HBA_ERROR;
 507                 mempool_free( pmb, phba->mbox_mem_pool);
 508                 return -EIO;
 509         }
 510
 511         /* Check if the port is disabled */
 512         lpfc_sli_read_link_ste(phba);
 513
 514         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 515         i = (mb->un.varRdConfig.max_xri + 1);
 516         if (phba->cfg_hba_queue_depth > i) {
 517                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 518                                 "3359 HBA queue depth changed from %d to %d\n",
 519                                 phba->cfg_hba_queue_depth, i);
 520                 phba->cfg_hba_queue_depth = i;
 521         }
 522
 523         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 524         i = (mb->un.varRdConfig.max_xri >> 3);
 525         if (phba->pport->cfg_lun_queue_depth > i) {
 526                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 527                                 "3360 LUN queue depth changed from %d to %d\n",
 528                                 phba->pport->cfg_lun_queue_depth, i);
 529                 phba->pport->cfg_lun_queue_depth = i;
 530         }
 531
 532         phba->lmt = mb->un.varRdConfig.lmt;
 533
 534         /* Get the default values for Model Name and Description */
 535         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 536
 537         phba->link_state = LPFC_LINK_DOWN;
 538
 539         /* Only process IOCBs on ELS ring till hba_state is READY */
 540         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 541                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 542         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 543                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 544
 545         /* Post receive buffers for desired rings */
 546         if (phba->sli_rev != 3)
 547                 lpfc_post_rcv_buf(phba);
 548
 549         /*
 550          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 551          */
 552         if (phba->intr_type == MSIX) {
 553                 rc = lpfc_config_msi(phba, pmb);
 554                 if (rc) {
 555                         mempool_free(pmb, phba->mbox_mem_pool);
 556                         return -EIO;
 557                 }
 558                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 559                 if (rc != MBX_SUCCESS) {
 560                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 561                                         "0352 Config MSI mailbox command "
 562                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 563                                         pmb->u.mb.mbxCommand,
 564                                         pmb->u.mb.mbxStatus);
 565                         mempool_free(pmb, phba->mbox_mem_pool);
 566                         return -EIO;
 567                 }
 568         }
 569
 570         spin_lock_irq(&phba->hbalock);
 571         /* Initialize ERATT handling flag */
 572         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 573
 574         /* Enable appropriate host interrupts */
 575         if (lpfc_readl(phba->HCregaddr, &status)) {
 576                 spin_unlock_irq(&phba->hbalock);
 577                 return -EIO;
 578         }
 579         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 580         if (psli->num_rings > 0)
 581                 status |= HC_R0INT_ENA;
 582         if (psli->num_rings > 1)
 583                 status |= HC_R1INT_ENA;
 584         if (psli->num_rings > 2)
 585                 status |= HC_R2INT_ENA;
 586         if (psli->num_rings > 3)
 587                 status |= HC_R3INT_ENA;
 588
 589         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 590             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 591                 status &= ~(HC_R0INT_ENA);
 592
 593         writel(status, phba->HCregaddr);
 594         readl(phba->HCregaddr); /* flush */
 595         spin_unlock_irq(&phba->hbalock);
 596
 597         /* Set up ring-0 (ELS) timer */
 598         timeout = phba->fc_ratov * 2;
 599         mod_timer(&vport->els_tmofunc,
 600                   jiffies + msecs_to_jiffies(1000 * timeout));
 601         /* Set up heart beat (HB) timer */
 602         mod_timer(&phba->hb_tmofunc,
 603                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 604         phba->hb_outstanding = 0;
 605         phba->last_completion_time = jiffies;
 606         /* Set up error attention (ERATT) polling timer */
 607         mod_timer(&phba->eratt_poll,
 608                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 609
 610         if (phba->hba_flag & LINK_DISABLED) {
 611                 lpfc_printf_log(phba,
 612                         KERN_ERR, LOG_INIT,
 613                         "2598 Adapter Link is disabled.\n");
 614                 lpfc_down_link(phba, pmb);
 615                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 616                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 617                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 618                         lpfc_printf_log(phba,
 619                         KERN_ERR, LOG_INIT,
 620                         "2599 Adapter failed to issue DOWN_LINK"
 621                         " mbox command rc 0x%x\n", rc);
 622
 623                         mempool_free(pmb, phba->mbox_mem_pool);
 624                         return -EIO;
 625                 }
 626         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 627                 mempool_free(pmb, phba->mbox_mem_pool);
 628                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 629                 if (rc)
 630                         return rc;
 631         }
 632         /* MBOX buffer will be freed in mbox compl */
 633         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 634         if (!pmb) {
 635                 phba->link_state = LPFC_HBA_ERROR;
 636                 return -ENOMEM;
 637         }
 638
 639         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 640         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 641         pmb->vport = phba->pport;
 642         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 643
 644         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 645                 lpfc_printf_log(phba,
 646                                 KERN_ERR,
 647                                 LOG_INIT,
 648                                 "0456 Adapter failed to issue "
 649                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 650                                 rc);
 651                 mempool_free(pmb, phba->mbox_mem_pool);
 652         }
 653
 654         /* Get Option rom version */
 655         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 656         if (!pmb) {
 657                 phba->link_state = LPFC_HBA_ERROR;
 658                 return -ENOMEM;
 659         }
 660
 661         lpfc_dump_wakeup_param(phba, pmb);
 662         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 663         pmb->vport = phba->pport;
 664         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 665
 666         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 667                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 668                                 "to get Option ROM version status x%x\n", rc);
 669                 mempool_free(pmb, phba->mbox_mem_pool);
 670         }
 671
 672         return 0;
 673 }
 674
 675 /**
 676  * lpfc_hba_init_link - Initialize the FC link
 677  * @phba: pointer to lpfc hba data structure.
 678  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 679  *
 680  * This routine will issue the INIT_LINK mailbox command call.
 681  * It is available to other drivers through the lpfc_hba data
 682  * structure for use as a delayed link up mechanism with the
 683  * module parameter lpfc_suppress_link_up.
 684  *
 685  * Return code
 686  *              0 - success
 687  *              Any other value - error
 688  **/
 689 static int
 690 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 691 {
 692         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 693 }
 694
 695 /**
 696  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 697  * @phba: pointer to lpfc hba data structure.
 698  * @fc_topology: desired fc topology.
 699  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 700  *
 701  * This routine will issue the INIT_LINK mailbox command call.
 702  * It is available to other drivers through the lpfc_hba data
 703  * structure for use as a delayed link up mechanism with the
 704  * module parameter lpfc_suppress_link_up.
 705  *
 706  * Return code
 707  *              0 - success
 708  *              Any other value - error
 709  **/
 710 int
 711 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 712                                uint32_t flag)
 713 {
 714         struct lpfc_vport *vport = phba->pport;
 715         LPFC_MBOXQ_t *pmb;
 716         MAILBOX_t *mb;
 717         int rc;
 718
 719         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 720         if (!pmb) {
 721                 phba->link_state = LPFC_HBA_ERROR;
 722                 return -ENOMEM;
 723         }
 724         mb = &pmb->u.mb;
 725         pmb->vport = vport;
 726
 727         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 728             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 729              !(phba->lmt & LMT_1Gb)) ||
 730             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 731              !(phba->lmt & LMT_2Gb)) ||
 732             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 733              !(phba->lmt & LMT_4Gb)) ||
 734             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 735              !(phba->lmt & LMT_8Gb)) ||
 736             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 737              !(phba->lmt & LMT_10Gb)) ||
 738             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 739              !(phba->lmt & LMT_16Gb)) ||
 740             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 741              !(phba->lmt & LMT_32Gb)) ||
 742             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 743              !(phba->lmt & LMT_64Gb))) {
 744                 /* Reset link speed to auto */
 745                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 746                         "1302 Invalid speed for this board:%d "
 747                         "Reset link speed to auto.\n",
 748                         phba->cfg_link_speed);
 749                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 750         }
 751         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 752         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 753         if (phba->sli_rev < LPFC_SLI_REV4)
 754                 lpfc_set_loopback_flag(phba);
 755         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 756         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 757                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 758                         "0498 Adapter failed to init, mbxCmd x%x "
 759                         "INIT_LINK, mbxStatus x%x\n",
 760                         mb->mbxCommand, mb->mbxStatus);
 761                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 762                         /* Clear all interrupt enable conditions */
 763                         writel(0, phba->HCregaddr);
 764                         readl(phba->HCregaddr); /* flush */
 765                         /* Clear all pending interrupts */
 766                         writel(0xffffffff, phba->HAregaddr);
 767                         readl(phba->HAregaddr); /* flush */
 768                 }
 769                 phba->link_state = LPFC_HBA_ERROR;
 770                 if (rc != MBX_BUSY || flag == MBX_POLL)
 771                         mempool_free(pmb, phba->mbox_mem_pool);
 772                 return -EIO;
 773         }
 774         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 775         if (flag == MBX_POLL)
 776                 mempool_free(pmb, phba->mbox_mem_pool);
 777
 778         return 0;
 779 }
 780
 781 /**
 782  * lpfc_hba_down_link - this routine downs the FC link
 783  * @phba: pointer to lpfc hba data structure.
 784  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 785  *
 786  * This routine will issue the DOWN_LINK mailbox command call.
 787  * It is available to other drivers through the lpfc_hba data
 788  * structure for use to stop the link.
 789  *
 790  * Return code
 791  *              0 - success
 792  *              Any other value - error
 793  **/
 794 static int
 795 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 796 {
 797         LPFC_MBOXQ_t *pmb;
 798         int rc;
 799
 800         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 801         if (!pmb) {
 802                 phba->link_state = LPFC_HBA_ERROR;
 803                 return -ENOMEM;
 804         }
 805
 806         lpfc_printf_log(phba,
 807                 KERN_ERR, LOG_INIT,
 808                 "0491 Adapter Link is disabled.\n");
 809         lpfc_down_link(phba, pmb);
 810         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 811         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 812         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 813                 lpfc_printf_log(phba,
 814                 KERN_ERR, LOG_INIT,
 815                 "2522 Adapter failed to issue DOWN_LINK"
 816                 " mbox command rc 0x%x\n", rc);
 817
 818                 mempool_free(pmb, phba->mbox_mem_pool);
 819                 return -EIO;
 820         }
 821         if (flag == MBX_POLL)
 822                 mempool_free(pmb, phba->mbox_mem_pool);
 823
 824         return 0;
 825 }
 826
 827 /**
 828  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 829  * @phba: pointer to lpfc HBA data structure.
 830  *
 831  * This routine will do LPFC uninitialization before the HBA is reset when
 832  * bringing down the SLI Layer.
 833  *
 834  * Return codes
 835  *   0 - success.
 836  *   Any other value - error.
 837  **/
 838 int
 839 lpfc_hba_down_prep(struct lpfc_hba *phba)
 840 {
 841         struct lpfc_vport **vports;
 842         int i;
 843
 844         if (phba->sli_rev <= LPFC_SLI_REV3) {
 845                 /* Disable interrupts */
 846                 writel(0, phba->HCregaddr);
 847                 readl(phba->HCregaddr); /* flush */
 848         }
 849
 850         if (phba->pport->load_flag & FC_UNLOADING)
 851                 lpfc_cleanup_discovery_resources(phba->pport);
 852         else {
 853                 vports = lpfc_create_vport_work_array(phba);
 854                 if (vports != NULL)
 855                         for (i = 0; i <= phba->max_vports &&
 856                                 vports[i] != NULL; i++)
 857                                 lpfc_cleanup_discovery_resources(vports[i]);
 858                 lpfc_destroy_vport_work_array(phba, vports);
 859         }
 860         return 0;
 861 }
 862
 863 /**
 864  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 865  * rspiocb which got deferred
 866  *
 867  * @phba: pointer to lpfc HBA data structure.
 868  *
 869  * This routine will cleanup completed slow path events after HBA is reset
 870  * when bringing down the SLI Layer.
 871  *
 872  *
 873  * Return codes
 874  *   void.
 875  **/
 876 static void
 877 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 878 {
 879         struct lpfc_iocbq *rspiocbq;
 880         struct hbq_dmabuf *dmabuf;
 881         struct lpfc_cq_event *cq_event;
 882
 883         spin_lock_irq(&phba->hbalock);
 884         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 885         spin_unlock_irq(&phba->hbalock);
 886
 887         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 888                 /* Get the response iocb from the head of work queue */
 889                 spin_lock_irq(&phba->hbalock);
 890                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 891                                  cq_event, struct lpfc_cq_event, list);
 892                 spin_unlock_irq(&phba->hbalock);
 893
 894                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 895                 case CQE_CODE_COMPL_WQE:
 896                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 897                                                  cq_event);
 898                         lpfc_sli_release_iocbq(phba, rspiocbq);
 899                         break;
 900                 case CQE_CODE_RECEIVE:
 901                 case CQE_CODE_RECEIVE_V1:
 902                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 903                                               cq_event);
 904                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 905                 }
 906         }
 907 }
 908
 909 /**
 910  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 911  * @phba: pointer to lpfc HBA data structure.
 912  *
 913  * This routine will cleanup posted ELS buffers after the HBA is reset
 914  * when bringing down the SLI Layer.
 915  *
 916  *
 917  * Return codes
 918  *   void.
 919  **/
 920 static void
 921 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 922 {
 923         struct lpfc_sli *psli = &phba->sli;
 924         struct lpfc_sli_ring *pring;
 925         struct lpfc_dmabuf *mp, *next_mp;
 926         LIST_HEAD(buflist);
 927         int count;
 928
 929         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 930                 lpfc_sli_hbqbuf_free_all(phba);
 931         else {
 932                 /* Cleanup preposted buffers on the ELS ring */
 933                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 934                 spin_lock_irq(&phba->hbalock);
 935                 list_splice_init(&pring->postbufq, &buflist);
 936                 spin_unlock_irq(&phba->hbalock);
 937
 938                 count = 0;
 939                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 940                         list_del(&mp->list);
 941                         count++;
 942                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 943                         kfree(mp);
 944                 }
 945
 946                 spin_lock_irq(&phba->hbalock);
 947                 pring->postbufq_cnt -= count;
 948                 spin_unlock_irq(&phba->hbalock);
 949         }
 950 }
 951
 952 /**
 953  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 954  * @phba: pointer to lpfc HBA data structure.
 955  *
 956  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 957  * down the SLI Layer.
 958  *
 959  * Return codes
 960  *   void
 961  **/
 962 static void
 963 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 964 {
 965         struct lpfc_sli *psli = &phba->sli;
 966         struct lpfc_queue *qp = NULL;
 967         struct lpfc_sli_ring *pring;
 968         LIST_HEAD(completions);
 969         int i;
 970         struct lpfc_iocbq *piocb, *next_iocb;
 971
 972         if (phba->sli_rev != LPFC_SLI_REV4) {
 973                 for (i = 0; i < psli->num_rings; i++) {
 974                         pring = &psli->sli3_ring[i];
 975                         spin_lock_irq(&phba->hbalock);
 976                         /* At this point in time the HBA is either reset or DOA
 977                          * Nothing should be on txcmplq as it will
 978                          * NEVER complete.
 979                          */
 980                         list_splice_init(&pring->txcmplq, &completions);
 981                         pring->txcmplq_cnt = 0;
 982                         spin_unlock_irq(&phba->hbalock);
 983
 984                         lpfc_sli_abort_iocb_ring(phba, pring);
 985                 }
 986                 /* Cancel all the IOCBs from the completions list */
 987                 lpfc_sli_cancel_iocbs(phba, &completions,
 988                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 989                 return;
 990         }
 991         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 992                 pring = qp->pring;
 993                 if (!pring)
 994                         continue;
 995                 spin_lock_irq(&pring->ring_lock);
 996                 list_for_each_entry_safe(piocb, next_iocb,
 997                                          &pring->txcmplq, list)
 998                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 999                 list_splice_init(&pring->txcmplq, &completions);
1000                 pring->txcmplq_cnt = 0;
1001                 spin_unlock_irq(&pring->ring_lock);
1002                 lpfc_sli_abort_iocb_ring(phba, pring);
1003         }
1004         /* Cancel all the IOCBs from the completions list */
1005         lpfc_sli_cancel_iocbs(phba, &completions,
1006                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1007 }
1008
1009 /**
1010  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1011         int i;
1012  * @phba: pointer to lpfc HBA data structure.
1013  *
1014  * This routine will do uninitialization after the HBA is reset when bring
1015  * down the SLI Layer.
1016  *
1017  * Return codes
1018  *   0 - success.
1019  *   Any other value - error.
1020  **/
1021 static int
1022 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1023 {
1024         lpfc_hba_free_post_buf(phba);
1025         lpfc_hba_clean_txcmplq(phba);
1026         return 0;
1027 }
1028
1029 /**
1030  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1031  * @phba: pointer to lpfc HBA data structure.
1032  *
1033  * This routine will do uninitialization after the HBA is reset when bring
1034  * down the SLI Layer.
1035  *
1036  * Return codes
1037  *   0 - success.
1038  *   Any other value - error.
1039  **/
1040 static int
1041 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1042 {
1043         struct lpfc_io_buf *psb, *psb_next;
1044         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1045         struct lpfc_sli4_hdw_queue *qp;
1046         LIST_HEAD(aborts);
1047         LIST_HEAD(nvme_aborts);
1048         LIST_HEAD(nvmet_aborts);
1049         struct lpfc_sglq *sglq_entry = NULL;
1050         int cnt, idx;
1051
1052
1053         lpfc_sli_hbqbuf_free_all(phba);
1054         lpfc_hba_clean_txcmplq(phba);
1055
1056         /* At this point in time the HBA is either reset or DOA. Either
1057          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1058          * on the lpfc_els_sgl_list so that it can either be freed if the
1059          * driver is unloading or reposted if the driver is restarting
1060          * the port.
1061          */
1062         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1063                                         /* scsl_buf_list */
1064         /* sgl_list_lock required because worker thread uses this
1065          * list.
1066          */
1067         spin_lock(&phba->sli4_hba.sgl_list_lock);
1068         list_for_each_entry(sglq_entry,
1069                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1070                 sglq_entry->state = SGL_FREED;
1071
1072         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1073                         &phba->sli4_hba.lpfc_els_sgl_list);
1074
1075
1076         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1077
1078         /* abts_xxxx_buf_list_lock required because worker thread uses this
1079          * list.
1080          */
1081         cnt = 0;
1082         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1083                 qp = &phba->sli4_hba.hdwq[idx];
1084
1085                 spin_lock(&qp->abts_io_buf_list_lock);
1086                 list_splice_init(&qp->lpfc_abts_io_buf_list,
1087                                  &aborts);
1088
1089                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1090                         psb->pCmd = NULL;
1091                         psb->status = IOSTAT_SUCCESS;
1092                         cnt++;
1093                 }
1094                 spin_lock(&qp->io_buf_list_put_lock);
1095                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1096                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1097                 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1098                 qp->abts_scsi_io_bufs = 0;
1099                 qp->abts_nvme_io_bufs = 0;
1100                 spin_unlock(&qp->io_buf_list_put_lock);
1101                 spin_unlock(&qp->abts_io_buf_list_lock);
1102         }
1103         spin_unlock_irq(&phba->hbalock);
1104
1105         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1106                 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1107                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1108                                  &nvmet_aborts);
1109                 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1110                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1111                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1112                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1113                 }
1114         }
1115
1116         lpfc_sli4_free_sp_events(phba);
1117         return cnt;
1118 }
1119
1120 /**
1121  * lpfc_hba_down_post - Wrapper func for hba down post routine
1122  * @phba: pointer to lpfc HBA data structure.
1123  *
1124  * This routine wraps the actual SLI3 or SLI4 routine for performing
1125  * uninitialization after the HBA is reset when bring down the SLI Layer.
1126  *
1127  * Return codes
1128  *   0 - success.
1129  *   Any other value - error.
1130  **/
1131 int
1132 lpfc_hba_down_post(struct lpfc_hba *phba)
1133 {
1134         return (*phba->lpfc_hba_down_post)(phba);
1135 }
1136
1137 /**
1138  * lpfc_hb_timeout - The HBA-timer timeout handler
1139  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1140  *
1141  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1142  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1143  * work-port-events bitmap and the worker thread is notified. This timeout
1144  * event will be used by the worker thread to invoke the actual timeout
1145  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1146  * be performed in the timeout handler and the HBA timeout event bit shall
1147  * be cleared by the worker thread after it has taken the event bitmap out.
1148  **/
1149 static void
1150 lpfc_hb_timeout(struct timer_list *t)
1151 {
1152         struct lpfc_hba *phba;
1153         uint32_t tmo_posted;
1154         unsigned long iflag;
1155
1156         phba = from_timer(phba, t, hb_tmofunc);
1157
1158         /* Check for heart beat timeout conditions */
1159         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1160         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1161         if (!tmo_posted)
1162                 phba->pport->work_port_events |= WORKER_HB_TMO;
1163         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1164
1165         /* Tell the worker thread there is work to do */
1166         if (!tmo_posted)
1167                 lpfc_worker_wake_up(phba);
1168         return;
1169 }
1170
1171 /**
1172  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1173  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1174  *
1175  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1176  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1177  * work-port-events bitmap and the worker thread is notified. This timeout
1178  * event will be used by the worker thread to invoke the actual timeout
1179  * handler routine, lpfc_rrq_handler. Any periodical operations will
1180  * be performed in the timeout handler and the RRQ timeout event bit shall
1181  * be cleared by the worker thread after it has taken the event bitmap out.
1182  **/
1183 static void
1184 lpfc_rrq_timeout(struct timer_list *t)
1185 {
1186         struct lpfc_hba *phba;
1187         unsigned long iflag;
1188
1189         phba = from_timer(phba, t, rrq_tmr);
1190         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1191         if (!(phba->pport->load_flag & FC_UNLOADING))
1192                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1193         else
1194                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1195         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1196
1197         if (!(phba->pport->load_flag & FC_UNLOADING))
1198                 lpfc_worker_wake_up(phba);
1199 }
1200
1201 /**
1202  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1203  * @phba: pointer to lpfc hba data structure.
1204  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1205  *
1206  * This is the callback function to the lpfc heart-beat mailbox command.
1207  * If configured, the lpfc driver issues the heart-beat mailbox command to
1208  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1209  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1210  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1211  * heart-beat outstanding state. Once the mailbox command comes back and
1212  * no error conditions detected, the heart-beat mailbox command timer is
1213  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1214  * state is cleared for the next heart-beat. If the timer expired with the
1215  * heart-beat outstanding state set, the driver will put the HBA offline.
1216  **/
1217 static void
1218 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1219 {
1220         unsigned long drvr_flag;
1221
1222         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1223         phba->hb_outstanding = 0;
1224         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1225
1226         /* Check and reset heart-beat timer is necessary */
1227         mempool_free(pmboxq, phba->mbox_mem_pool);
1228         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1229                 !(phba->link_state == LPFC_HBA_ERROR) &&
1230                 !(phba->pport->load_flag & FC_UNLOADING))
1231                 mod_timer(&phba->hb_tmofunc,
1232                           jiffies +
1233                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1234         return;
1235 }
1236
1237 static void
1238 lpfc_hb_eq_delay_work(struct work_struct *work)
1239 {
1240         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1241                                              struct lpfc_hba, eq_delay_work);
1242         struct lpfc_eq_intr_info *eqi, *eqi_new;
1243         struct lpfc_queue *eq, *eq_next;
1244         unsigned char *ena_delay = NULL;
1245         uint32_t usdelay;
1246         int i;
1247
1248         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1249                 return;
1250
1251         if (phba->link_state == LPFC_HBA_ERROR ||
1252             phba->pport->fc_flag & FC_OFFLINE_MODE)
1253                 goto requeue;
1254
1255         ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1256                             GFP_KERNEL);
1257         if (!ena_delay)
1258                 goto requeue;
1259
1260         for (i = 0; i < phba->cfg_irq_chann; i++) {
1261                 /* Get the EQ corresponding to the IRQ vector */
1262                 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1263                 if (!eq)
1264                         continue;
1265                 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1266                         eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1267                         ena_delay[eq->last_cpu] = 1;
1268                 }
1269         }
1270
1271         for_each_present_cpu(i) {
1272                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1273                 if (ena_delay[i]) {
1274                         usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1275                         if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1276                                 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1277                 } else {
1278                         usdelay = 0;
1279                 }
1280
1281                 eqi->icnt = 0;
1282
1283                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1284                         if (unlikely(eq->last_cpu != i)) {
1285                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1286                                                       eq->last_cpu);
1287                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1288                                 continue;
1289                         }
1290                         if (usdelay != eq->q_mode)
1291                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1292                                                          usdelay);
1293                 }
1294         }
1295
1296         kfree(ena_delay);
1297
1298 requeue:
1299         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1300                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1301 }
1302
1303 /**
1304  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1305  * @phba: pointer to lpfc hba data structure.
1306  *
1307  * For each heartbeat, this routine does some heuristic methods to adjust
1308  * XRI distribution. The goal is to fully utilize free XRIs.
1309  **/
1310 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1311 {
1312         u32 i;
1313         u32 hwq_count;
1314
1315         hwq_count = phba->cfg_hdw_queue;
1316         for (i = 0; i < hwq_count; i++) {
1317                 /* Adjust XRIs in private pool */
1318                 lpfc_adjust_pvt_pool_count(phba, i);
1319
1320                 /* Adjust high watermark */
1321                 lpfc_adjust_high_watermark(phba, i);
1322
1323 #ifdef LPFC_MXP_STAT
1324                 /* Snapshot pbl, pvt and busy count */
1325                 lpfc_snapshot_mxp(phba, i);
1326 #endif
1327         }
1328 }
1329
1330 /**
1331  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1332  * @phba: pointer to lpfc hba data structure.
1333  *
1334  * This is the actual HBA-timer timeout handler to be invoked by the worker
1335  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1336  * handler performs any periodic operations needed for the device. If such
1337  * periodic event has already been attended to either in the interrupt handler
1338  * or by processing slow-ring or fast-ring events within the HBA-timer
1339  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1340  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1341  * is configured and there is no heart-beat mailbox command outstanding, a
1342  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1343  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1344  * to offline.
1345  **/
1346 void
1347 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1348 {
1349         struct lpfc_vport **vports;
1350         LPFC_MBOXQ_t *pmboxq;
1351         struct lpfc_dmabuf *buf_ptr;
1352         int retval, i;
1353         struct lpfc_sli *psli = &phba->sli;
1354         LIST_HEAD(completions);
1355
1356         if (phba->cfg_xri_rebalancing) {
1357                 /* Multi-XRI pools handler */
1358                 lpfc_hb_mxp_handler(phba);
1359         }
1360
1361         vports = lpfc_create_vport_work_array(phba);
1362         if (vports != NULL)
1363                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1364                         lpfc_rcv_seq_check_edtov(vports[i]);
1365                         lpfc_fdmi_change_check(vports[i]);
1366                 }
1367         lpfc_destroy_vport_work_array(phba, vports);
1368
1369         if ((phba->link_state == LPFC_HBA_ERROR) ||
1370                 (phba->pport->load_flag & FC_UNLOADING) ||
1371                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1372                 return;
1373
1374         spin_lock_irq(&phba->pport->work_port_lock);
1375
1376         if (time_after(phba->last_completion_time +
1377                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1378                         jiffies)) {
1379                 spin_unlock_irq(&phba->pport->work_port_lock);
1380                 if (!phba->hb_outstanding)
1381                         mod_timer(&phba->hb_tmofunc,
1382                                 jiffies +
1383                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1384                 else
1385                         mod_timer(&phba->hb_tmofunc,
1386                                 jiffies +
1387                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1388                 return;
1389         }
1390         spin_unlock_irq(&phba->pport->work_port_lock);
1391
1392         if (phba->elsbuf_cnt &&
1393                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1394                 spin_lock_irq(&phba->hbalock);
1395                 list_splice_init(&phba->elsbuf, &completions);
1396                 phba->elsbuf_cnt = 0;
1397                 phba->elsbuf_prev_cnt = 0;
1398                 spin_unlock_irq(&phba->hbalock);
1399
1400                 while (!list_empty(&completions)) {
1401                         list_remove_head(&completions, buf_ptr,
1402                                 struct lpfc_dmabuf, list);
1403                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1404                         kfree(buf_ptr);
1405                 }
1406         }
1407         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1408
1409         /* If there is no heart beat outstanding, issue a heartbeat command */
1410         if (phba->cfg_enable_hba_heartbeat) {
1411                 if (!phba->hb_outstanding) {
1412                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1413                                 (list_empty(&psli->mboxq))) {
1414                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1415                                                         GFP_KERNEL);
1416                                 if (!pmboxq) {
1417                                         mod_timer(&phba->hb_tmofunc,
1418                                                  jiffies +
1419                                                  msecs_to_jiffies(1000 *
1420                                                  LPFC_HB_MBOX_INTERVAL));
1421                                         return;
1422                                 }
1423
1424                                 lpfc_heart_beat(phba, pmboxq);
1425                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1426                                 pmboxq->vport = phba->pport;
1427                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1428                                                 MBX_NOWAIT);
1429
1430                                 if (retval != MBX_BUSY &&
1431                                         retval != MBX_SUCCESS) {
1432                                         mempool_free(pmboxq,
1433                                                         phba->mbox_mem_pool);
1434                                         mod_timer(&phba->hb_tmofunc,
1435                                                 jiffies +
1436                                                 msecs_to_jiffies(1000 *
1437                                                 LPFC_HB_MBOX_INTERVAL));
1438                                         return;
1439                                 }
1440                                 phba->skipped_hb = 0;
1441                                 phba->hb_outstanding = 1;
1442                         } else if (time_before_eq(phba->last_completion_time,
1443                                         phba->skipped_hb)) {
1444                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1445                                         "2857 Last completion time not "
1446                                         " updated in %d ms\n",
1447                                         jiffies_to_msecs(jiffies
1448                                                  - phba->last_completion_time));
1449                         } else
1450                                 phba->skipped_hb = jiffies;
1451
1452                         mod_timer(&phba->hb_tmofunc,
1453                                  jiffies +
1454                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1455                         return;
1456                 } else {
1457                         /*
1458                         * If heart beat timeout called with hb_outstanding set
1459                         * we need to give the hb mailbox cmd a chance to
1460                         * complete or TMO.
1461                         */
1462                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1463                                         "0459 Adapter heartbeat still out"
1464                                         "standing:last compl time was %d ms.\n",
1465                                         jiffies_to_msecs(jiffies
1466                                                  - phba->last_completion_time));
1467                         mod_timer(&phba->hb_tmofunc,
1468                                 jiffies +
1469                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1470                 }
1471         } else {
1472                         mod_timer(&phba->hb_tmofunc,
1473                                 jiffies +
1474                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1475         }
1476 }
1477
1478 /**
1479  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1480  * @phba: pointer to lpfc hba data structure.
1481  *
1482  * This routine is called to bring the HBA offline when HBA hardware error
1483  * other than Port Error 6 has been detected.
1484  **/
1485 static void
1486 lpfc_offline_eratt(struct lpfc_hba *phba)
1487 {
1488         struct lpfc_sli   *psli = &phba->sli;
1489
1490         spin_lock_irq(&phba->hbalock);
1491         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1492         spin_unlock_irq(&phba->hbalock);
1493         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1494
1495         lpfc_offline(phba);
1496         lpfc_reset_barrier(phba);
1497         spin_lock_irq(&phba->hbalock);
1498         lpfc_sli_brdreset(phba);
1499         spin_unlock_irq(&phba->hbalock);
1500         lpfc_hba_down_post(phba);
1501         lpfc_sli_brdready(phba, HS_MBRDY);
1502         lpfc_unblock_mgmt_io(phba);
1503         phba->link_state = LPFC_HBA_ERROR;
1504         return;
1505 }
1506
1507 /**
1508  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1509  * @phba: pointer to lpfc hba data structure.
1510  *
1511  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1512  * other than Port Error 6 has been detected.
1513  **/
1514 void
1515 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1516 {
1517         spin_lock_irq(&phba->hbalock);
1518         phba->link_state = LPFC_HBA_ERROR;
1519         spin_unlock_irq(&phba->hbalock);
1520
1521         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1522         lpfc_sli_flush_io_rings(phba);
1523         lpfc_offline(phba);
1524         lpfc_hba_down_post(phba);
1525         lpfc_unblock_mgmt_io(phba);
1526 }
1527
1528 /**
1529  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1530  * @phba: pointer to lpfc hba data structure.
1531  *
1532  * This routine is invoked to handle the deferred HBA hardware error
1533  * conditions. This type of error is indicated by HBA by setting ER1
1534  * and another ER bit in the host status register. The driver will
1535  * wait until the ER1 bit clears before handling the error condition.
1536  **/
1537 static void
1538 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1539 {
1540         uint32_t old_host_status = phba->work_hs;
1541         struct lpfc_sli *psli = &phba->sli;
1542
1543         /* If the pci channel is offline, ignore possible errors,
1544          * since we cannot communicate with the pci card anyway.
1545          */
1546         if (pci_channel_offline(phba->pcidev)) {
1547                 spin_lock_irq(&phba->hbalock);
1548                 phba->hba_flag &= ~DEFER_ERATT;
1549                 spin_unlock_irq(&phba->hbalock);
1550                 return;
1551         }
1552
1553         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1554                 "0479 Deferred Adapter Hardware Error "
1555                 "Data: x%x x%x x%x\n",
1556                 phba->work_hs,
1557                 phba->work_status[0], phba->work_status[1]);
1558
1559         spin_lock_irq(&phba->hbalock);
1560         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1561         spin_unlock_irq(&phba->hbalock);
1562
1563
1564         /*
1565          * Firmware stops when it triggred erratt. That could cause the I/Os
1566          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1567          * SCSI layer retry it after re-establishing link.
1568          */
1569         lpfc_sli_abort_fcp_rings(phba);
1570
1571         /*
1572          * There was a firmware error. Take the hba offline and then
1573          * attempt to restart it.
1574          */
1575         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1576         lpfc_offline(phba);
1577
1578         /* Wait for the ER1 bit to clear.*/
1579         while (phba->work_hs & HS_FFER1) {
1580                 msleep(100);
1581                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1582                         phba->work_hs = UNPLUG_ERR ;
1583                         break;
1584                 }
1585                 /* If driver is unloading let the worker thread continue */
1586                 if (phba->pport->load_flag & FC_UNLOADING) {
1587                         phba->work_hs = 0;
1588                         break;
1589                 }
1590         }
1591
1592         /*
1593          * This is to ptrotect against a race condition in which
1594          * first write to the host attention register clear the
1595          * host status register.
1596          */
1597         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1598                 phba->work_hs = old_host_status & ~HS_FFER1;
1599
1600         spin_lock_irq(&phba->hbalock);
1601         phba->hba_flag &= ~DEFER_ERATT;
1602         spin_unlock_irq(&phba->hbalock);
1603         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1604         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1605 }
1606
1607 static void
1608 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1609 {
1610         struct lpfc_board_event_header board_event;
1611         struct Scsi_Host *shost;
1612
1613         board_event.event_type = FC_REG_BOARD_EVENT;
1614         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1615         shost = lpfc_shost_from_vport(phba->pport);
1616         fc_host_post_vendor_event(shost, fc_get_event_number(),
1617                                   sizeof(board_event),
1618                                   (char *) &board_event,
1619                                   LPFC_NL_VENDOR_ID);
1620 }
1621
1622 /**
1623  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1624  * @phba: pointer to lpfc hba data structure.
1625  *
1626  * This routine is invoked to handle the following HBA hardware error
1627  * conditions:
1628  * 1 - HBA error attention interrupt
1629  * 2 - DMA ring index out of range
1630  * 3 - Mailbox command came back as unknown
1631  **/
1632 static void
1633 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1634 {
1635         struct lpfc_vport *vport = phba->pport;
1636         struct lpfc_sli   *psli = &phba->sli;
1637         uint32_t event_data;
1638         unsigned long temperature;
1639         struct temp_event temp_event_data;
1640         struct Scsi_Host  *shost;
1641
1642         /* If the pci channel is offline, ignore possible errors,
1643          * since we cannot communicate with the pci card anyway.
1644          */
1645         if (pci_channel_offline(phba->pcidev)) {
1646                 spin_lock_irq(&phba->hbalock);
1647                 phba->hba_flag &= ~DEFER_ERATT;
1648                 spin_unlock_irq(&phba->hbalock);
1649                 return;
1650         }
1651
1652         /* If resets are disabled then leave the HBA alone and return */
1653         if (!phba->cfg_enable_hba_reset)
1654                 return;
1655
1656         /* Send an internal error event to mgmt application */
1657         lpfc_board_errevt_to_mgmt(phba);
1658
1659         if (phba->hba_flag & DEFER_ERATT)
1660                 lpfc_handle_deferred_eratt(phba);
1661
1662         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1663                 if (phba->work_hs & HS_FFER6)
1664                         /* Re-establishing Link */
1665                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1666                                         "1301 Re-establishing Link "
1667                                         "Data: x%x x%x x%x\n",
1668                                         phba->work_hs, phba->work_status[0],
1669                                         phba->work_status[1]);
1670                 if (phba->work_hs & HS_FFER8)
1671                         /* Device Zeroization */
1672                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1673                                         "2861 Host Authentication device "
1674                                         "zeroization Data:x%x x%x x%x\n",
1675                                         phba->work_hs, phba->work_status[0],
1676                                         phba->work_status[1]);
1677
1678                 spin_lock_irq(&phba->hbalock);
1679                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1680                 spin_unlock_irq(&phba->hbalock);
1681
1682                 /*
1683                 * Firmware stops when it triggled erratt with HS_FFER6.
1684                 * That could cause the I/Os dropped by the firmware.
1685                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1686                 * retry it after re-establishing link.
1687                 */
1688                 lpfc_sli_abort_fcp_rings(phba);
1689
1690                 /*
1691                  * There was a firmware error.  Take the hba offline and then
1692                  * attempt to restart it.
1693                  */
1694                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1695                 lpfc_offline(phba);
1696                 lpfc_sli_brdrestart(phba);
1697                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1698                         lpfc_unblock_mgmt_io(phba);
1699                         return;
1700                 }
1701                 lpfc_unblock_mgmt_io(phba);
1702         } else if (phba->work_hs & HS_CRIT_TEMP) {
1703                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1704                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1705                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1706                 temp_event_data.data = (uint32_t)temperature;
1707
1708                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1709                                 "0406 Adapter maximum temperature exceeded "
1710                                 "(%ld), taking this port offline "
1711                                 "Data: x%x x%x x%x\n",
1712                                 temperature, phba->work_hs,
1713                                 phba->work_status[0], phba->work_status[1]);
1714
1715                 shost = lpfc_shost_from_vport(phba->pport);
1716                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1717                                           sizeof(temp_event_data),
1718                                           (char *) &temp_event_data,
1719                                           SCSI_NL_VID_TYPE_PCI
1720                                           | PCI_VENDOR_ID_EMULEX);
1721
1722                 spin_lock_irq(&phba->hbalock);
1723                 phba->over_temp_state = HBA_OVER_TEMP;
1724                 spin_unlock_irq(&phba->hbalock);
1725                 lpfc_offline_eratt(phba);
1726
1727         } else {
1728                 /* The if clause above forces this code path when the status
1729                  * failure is a value other than FFER6. Do not call the offline
1730                  * twice. This is the adapter hardware error path.
1731                  */
1732                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1733                                 "0457 Adapter Hardware Error "
1734                                 "Data: x%x x%x x%x\n",
1735                                 phba->work_hs,
1736                                 phba->work_status[0], phba->work_status[1]);
1737
1738                 event_data = FC_REG_DUMP_EVENT;
1739                 shost = lpfc_shost_from_vport(vport);
1740                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1741                                 sizeof(event_data), (char *) &event_data,
1742                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1743
1744                 lpfc_offline_eratt(phba);
1745         }
1746         return;
1747 }
1748
1749 /**
1750  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1751  * @phba: pointer to lpfc hba data structure.
1752  * @mbx_action: flag for mailbox shutdown action.
1753  *
1754  * This routine is invoked to perform an SLI4 port PCI function reset in
1755  * response to port status register polling attention. It waits for port
1756  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1757  * During this process, interrupt vectors are freed and later requested
1758  * for handling possible port resource change.
1759  **/
1760 static int
1761 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1762                             bool en_rn_msg)
1763 {
1764         int rc;
1765         uint32_t intr_mode;
1766
1767         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1768             LPFC_SLI_INTF_IF_TYPE_2) {
1769                 /*
1770                  * On error status condition, driver need to wait for port
1771                  * ready before performing reset.
1772                  */
1773                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1774                 if (rc)
1775                         return rc;
1776         }
1777
1778         /* need reset: attempt for port recovery */
1779         if (en_rn_msg)
1780                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1781                                 "2887 Reset Needed: Attempting Port "
1782                                 "Recovery...\n");
1783         lpfc_offline_prep(phba, mbx_action);
1784         lpfc_sli_flush_io_rings(phba);
1785         lpfc_offline(phba);
1786         /* release interrupt for possible resource change */
1787         lpfc_sli4_disable_intr(phba);
1788         rc = lpfc_sli_brdrestart(phba);
1789         if (rc) {
1790                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1791                                 "6309 Failed to restart board\n");
1792                 return rc;
1793         }
1794         /* request and enable interrupt */
1795         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1796         if (intr_mode == LPFC_INTR_ERROR) {
1797                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1798                                 "3175 Failed to enable interrupt\n");
1799                 return -EIO;
1800         }
1801         phba->intr_mode = intr_mode;
1802         rc = lpfc_online(phba);
1803         if (rc == 0)
1804                 lpfc_unblock_mgmt_io(phba);
1805
1806         return rc;
1807 }
1808
1809 /**
1810  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1811  * @phba: pointer to lpfc hba data structure.
1812  *
1813  * This routine is invoked to handle the SLI4 HBA hardware error attention
1814  * conditions.
1815  **/
1816 static void
1817 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1818 {
1819         struct lpfc_vport *vport = phba->pport;
1820         uint32_t event_data;
1821         struct Scsi_Host *shost;
1822         uint32_t if_type;
1823         struct lpfc_register portstat_reg = {0};
1824         uint32_t reg_err1, reg_err2;
1825         uint32_t uerrlo_reg, uemasklo_reg;
1826         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1827         bool en_rn_msg = true;
1828         struct temp_event temp_event_data;
1829         struct lpfc_register portsmphr_reg;
1830         int rc, i;
1831
1832         /* If the pci channel is offline, ignore possible errors, since
1833          * we cannot communicate with the pci card anyway.
1834          */
1835         if (pci_channel_offline(phba->pcidev)) {
1836                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1837                                 "3166 pci channel is offline\n");
1838                 lpfc_sli4_offline_eratt(phba);
1839                 return;
1840         }
1841
1842         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1843         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1844         switch (if_type) {
1845         case LPFC_SLI_INTF_IF_TYPE_0:
1846                 pci_rd_rc1 = lpfc_readl(
1847                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1848                                 &uerrlo_reg);
1849                 pci_rd_rc2 = lpfc_readl(
1850                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1851                                 &uemasklo_reg);
1852                 /* consider PCI bus read error as pci_channel_offline */
1853                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1854                         return;
1855                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1856                         lpfc_sli4_offline_eratt(phba);
1857                         return;
1858                 }
1859                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1860                                 "7623 Checking UE recoverable");
1861
1862                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1863                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1864                                        &portsmphr_reg.word0))
1865                                 continue;
1866
1867                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1868                                                    &portsmphr_reg);
1869                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1870                             LPFC_PORT_SEM_UE_RECOVERABLE)
1871                                 break;
1872                         /*Sleep for 1Sec, before checking SEMAPHORE */
1873                         msleep(1000);
1874                 }
1875
1876                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1877                                 "4827 smphr_port_status x%x : Waited %dSec",
1878                                 smphr_port_status, i);
1879
1880                 /* Recoverable UE, reset the HBA device */
1881                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1882                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1883                         for (i = 0; i < 20; i++) {
1884                                 msleep(1000);
1885                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1886                                     &portsmphr_reg.word0) &&
1887                                     (LPFC_POST_STAGE_PORT_READY ==
1888                                      bf_get(lpfc_port_smphr_port_status,
1889                                      &portsmphr_reg))) {
1890                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1891                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1892                                         if (rc == 0)
1893                                                 return;
1894                                         lpfc_printf_log(phba,
1895                                                 KERN_ERR, LOG_INIT,
1896                                                 "4215 Failed to recover UE");
1897                                         break;
1898                                 }
1899                         }
1900                 }
1901                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1902                                 "7624 Firmware not ready: Failing UE recovery,"
1903                                 " waited %dSec", i);
1904                 phba->link_state = LPFC_HBA_ERROR;
1905                 break;
1906
1907         case LPFC_SLI_INTF_IF_TYPE_2:
1908         case LPFC_SLI_INTF_IF_TYPE_6:
1909                 pci_rd_rc1 = lpfc_readl(
1910                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1911                                 &portstat_reg.word0);
1912                 /* consider PCI bus read error as pci_channel_offline */
1913                 if (pci_rd_rc1 == -EIO) {
1914                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1915                                 "3151 PCI bus read access failure: x%x\n",
1916                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1917                         lpfc_sli4_offline_eratt(phba);
1918                         return;
1919                 }
1920                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1921                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1922                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1923                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1924                                 "2889 Port Overtemperature event, "
1925                                 "taking port offline Data: x%x x%x\n",
1926                                 reg_err1, reg_err2);
1927
1928                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1929                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1930                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1931                         temp_event_data.data = 0xFFFFFFFF;
1932
1933                         shost = lpfc_shost_from_vport(phba->pport);
1934                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1935                                                   sizeof(temp_event_data),
1936                                                   (char *)&temp_event_data,
1937                                                   SCSI_NL_VID_TYPE_PCI
1938                                                   | PCI_VENDOR_ID_EMULEX);
1939
1940                         spin_lock_irq(&phba->hbalock);
1941                         phba->over_temp_state = HBA_OVER_TEMP;
1942                         spin_unlock_irq(&phba->hbalock);
1943                         lpfc_sli4_offline_eratt(phba);
1944                         return;
1945                 }
1946                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1947                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1948                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1949                                         "3143 Port Down: Firmware Update "
1950                                         "Detected\n");
1951                         en_rn_msg = false;
1952                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1953                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1954                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1955                                         "3144 Port Down: Debug Dump\n");
1956                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1957                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1958                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1959                                         "3145 Port Down: Provisioning\n");
1960
1961                 /* If resets are disabled then leave the HBA alone and return */
1962                 if (!phba->cfg_enable_hba_reset)
1963                         return;
1964
1965                 /* Check port status register for function reset */
1966                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1967                                 en_rn_msg);
1968                 if (rc == 0) {
1969                         /* don't report event on forced debug dump */
1970                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1971                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1972                                 return;
1973                         else
1974                                 break;
1975                 }
1976                 /* fall through for not able to recover */
1977                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1978                                 "3152 Unrecoverable error\n");
1979                 phba->link_state = LPFC_HBA_ERROR;
1980                 break;
1981         case LPFC_SLI_INTF_IF_TYPE_1:
1982         default:
1983                 break;
1984         }
1985         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1986                         "3123 Report dump event to upper layer\n");
1987         /* Send an internal error event to mgmt application */
1988         lpfc_board_errevt_to_mgmt(phba);
1989
1990         event_data = FC_REG_DUMP_EVENT;
1991         shost = lpfc_shost_from_vport(vport);
1992         fc_host_post_vendor_event(shost, fc_get_event_number(),
1993                                   sizeof(event_data), (char *) &event_data,
1994                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1995 }
1996
1997 /**
1998  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1999  * @phba: pointer to lpfc HBA data structure.
2000  *
2001  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2002  * routine from the API jump table function pointer from the lpfc_hba struct.
2003  *
2004  * Return codes
2005  *   0 - success.
2006  *   Any other value - error.
2007  **/
2008 void
2009 lpfc_handle_eratt(struct lpfc_hba *phba)
2010 {
2011         (*phba->lpfc_handle_eratt)(phba);
2012 }
2013
2014 /**
2015  * lpfc_handle_latt - The HBA link event handler
2016  * @phba: pointer to lpfc hba data structure.
2017  *
2018  * This routine is invoked from the worker thread to handle a HBA host
2019  * attention link event. SLI3 only.
2020  **/
2021 void
2022 lpfc_handle_latt(struct lpfc_hba *phba)
2023 {
2024         struct lpfc_vport *vport = phba->pport;
2025         struct lpfc_sli   *psli = &phba->sli;
2026         LPFC_MBOXQ_t *pmb;
2027         volatile uint32_t control;
2028         struct lpfc_dmabuf *mp;
2029         int rc = 0;
2030
2031         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2032         if (!pmb) {
2033                 rc = 1;
2034                 goto lpfc_handle_latt_err_exit;
2035         }
2036
2037         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2038         if (!mp) {
2039                 rc = 2;
2040                 goto lpfc_handle_latt_free_pmb;
2041         }
2042
2043         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2044         if (!mp->virt) {
2045                 rc = 3;
2046                 goto lpfc_handle_latt_free_mp;
2047         }
2048
2049         /* Cleanup any outstanding ELS commands */
2050         lpfc_els_flush_all_cmd(phba);
2051
2052         psli->slistat.link_event++;
2053         lpfc_read_topology(phba, pmb, mp);
2054         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2055         pmb->vport = vport;
2056         /* Block ELS IOCBs until we have processed this mbox command */
2057         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2058         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2059         if (rc == MBX_NOT_FINISHED) {
2060                 rc = 4;
2061                 goto lpfc_handle_latt_free_mbuf;
2062         }
2063
2064         /* Clear Link Attention in HA REG */
2065         spin_lock_irq(&phba->hbalock);
2066         writel(HA_LATT, phba->HAregaddr);
2067         readl(phba->HAregaddr); /* flush */
2068         spin_unlock_irq(&phba->hbalock);
2069
2070         return;
2071
2072 lpfc_handle_latt_free_mbuf:
2073         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2074         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2075 lpfc_handle_latt_free_mp:
2076         kfree(mp);
2077 lpfc_handle_latt_free_pmb:
2078         mempool_free(pmb, phba->mbox_mem_pool);
2079 lpfc_handle_latt_err_exit:
2080         /* Enable Link attention interrupts */
2081         spin_lock_irq(&phba->hbalock);
2082         psli->sli_flag |= LPFC_PROCESS_LA;
2083         control = readl(phba->HCregaddr);
2084         control |= HC_LAINT_ENA;
2085         writel(control, phba->HCregaddr);
2086         readl(phba->HCregaddr); /* flush */
2087
2088         /* Clear Link Attention in HA REG */
2089         writel(HA_LATT, phba->HAregaddr);
2090         readl(phba->HAregaddr); /* flush */
2091         spin_unlock_irq(&phba->hbalock);
2092         lpfc_linkdown(phba);
2093         phba->link_state = LPFC_HBA_ERROR;
2094
2095         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2096                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2097
2098         return;
2099 }
2100
2101 /**
2102  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2103  * @phba: pointer to lpfc hba data structure.
2104  * @vpd: pointer to the vital product data.
2105  * @len: length of the vital product data in bytes.
2106  *
2107  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2108  * an array of characters. In this routine, the ModelName, ProgramType, and
2109  * ModelDesc, etc. fields of the phba data structure will be populated.
2110  *
2111  * Return codes
2112  *   0 - pointer to the VPD passed in is NULL
2113  *   1 - success
2114  **/
2115 int
2116 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2117 {
2118         uint8_t lenlo, lenhi;
2119         int Length;
2120         int i, j;
2121         int finished = 0;
2122         int index = 0;
2123
2124         if (!vpd)
2125                 return 0;
2126
2127         /* Vital Product */
2128         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2129                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2130                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2131                         (uint32_t) vpd[3]);
2132         while (!finished && (index < (len - 4))) {
2133                 switch (vpd[index]) {
2134                 case 0x82:
2135                 case 0x91:
2136                         index += 1;
2137                         lenlo = vpd[index];
2138                         index += 1;
2139                         lenhi = vpd[index];
2140                         index += 1;
2141                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2142                         index += i;
2143                         break;
2144                 case 0x90:
2145                         index += 1;
2146                         lenlo = vpd[index];
2147                         index += 1;
2148                         lenhi = vpd[index];
2149                         index += 1;
2150                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2151                         if (Length > len - index)
2152                                 Length = len - index;
2153                         while (Length > 0) {
2154                         /* Look for Serial Number */
2155                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2156                                 index += 2;
2157                                 i = vpd[index];
2158                                 index += 1;
2159                                 j = 0;
2160                                 Length -= (3+i);
2161                                 while(i--) {
2162                                         phba->SerialNumber[j++] = vpd[index++];
2163                                         if (j == 31)
2164                                                 break;
2165                                 }
2166                                 phba->SerialNumber[j] = 0;
2167                                 continue;
2168                         }
2169                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2170                                 phba->vpd_flag |= VPD_MODEL_DESC;
2171                                 index += 2;
2172                                 i = vpd[index];
2173                                 index += 1;
2174                                 j = 0;
2175                                 Length -= (3+i);
2176                                 while(i--) {
2177                                         phba->ModelDesc[j++] = vpd[index++];
2178                                         if (j == 255)
2179                                                 break;
2180                                 }
2181                                 phba->ModelDesc[j] = 0;
2182                                 continue;
2183                         }
2184                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2185                                 phba->vpd_flag |= VPD_MODEL_NAME;
2186                                 index += 2;
2187                                 i = vpd[index];
2188                                 index += 1;
2189                                 j = 0;
2190                                 Length -= (3+i);
2191                                 while(i--) {
2192                                         phba->ModelName[j++] = vpd[index++];
2193                                         if (j == 79)
2194                                                 break;
2195                                 }
2196                                 phba->ModelName[j] = 0;
2197                                 continue;
2198                         }
2199                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2200                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2201                                 index += 2;
2202                                 i = vpd[index];
2203                                 index += 1;
2204                                 j = 0;
2205                                 Length -= (3+i);
2206                                 while(i--) {
2207                                         phba->ProgramType[j++] = vpd[index++];
2208                                         if (j == 255)
2209                                                 break;
2210                                 }
2211                                 phba->ProgramType[j] = 0;
2212                                 continue;
2213                         }
2214                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2215                                 phba->vpd_flag |= VPD_PORT;
2216                                 index += 2;
2217                                 i = vpd[index];
2218                                 index += 1;
2219                                 j = 0;
2220                                 Length -= (3+i);
2221                                 while(i--) {
2222                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2223                                             (phba->sli4_hba.pport_name_sta ==
2224                                              LPFC_SLI4_PPNAME_GET)) {
2225                                                 j++;
2226                                                 index++;
2227                                         } else
2228                                                 phba->Port[j++] = vpd[index++];
2229                                         if (j == 19)
2230                                                 break;
2231                                 }
2232                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2233                                     (phba->sli4_hba.pport_name_sta ==
2234                                      LPFC_SLI4_PPNAME_NON))
2235                                         phba->Port[j] = 0;
2236                                 continue;
2237                         }
2238                         else {
2239                                 index += 2;
2240                                 i = vpd[index];
2241                                 index += 1;
2242                                 index += i;
2243                                 Length -= (3 + i);
2244                         }
2245                 }
2246                 finished = 0;
2247                 break;
2248                 case 0x78:
2249                         finished = 1;
2250                         break;
2251                 default:
2252                         index ++;
2253                         break;
2254                 }
2255         }
2256
2257         return(1);
2258 }
2259
2260 /**
2261  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2262  * @phba: pointer to lpfc hba data structure.
2263  * @mdp: pointer to the data structure to hold the derived model name.
2264  * @descp: pointer to the data structure to hold the derived description.
2265  *
2266  * This routine retrieves HBA's description based on its registered PCI device
2267  * ID. The @descp passed into this function points to an array of 256 chars. It
2268  * shall be returned with the model name, maximum speed, and the host bus type.
2269  * The @mdp passed into this function points to an array of 80 chars. When the
2270  * function returns, the @mdp will be filled with the model name.
2271  **/
2272 static void
2273 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2274 {
2275         lpfc_vpd_t *vp;
2276         uint16_t dev_id = phba->pcidev->device;
2277         int max_speed;
2278         int GE = 0;
2279         int oneConnect = 0; /* default is not a oneConnect */
2280         struct {
2281                 char *name;
2282                 char *bus;
2283                 char *function;
2284         } m = {"<Unknown>", "", ""};
2285
2286         if (mdp && mdp[0] != '\0'
2287                 && descp && descp[0] != '\0')
2288                 return;
2289
2290         if (phba->lmt & LMT_64Gb)
2291                 max_speed = 64;
2292         else if (phba->lmt & LMT_32Gb)
2293                 max_speed = 32;
2294         else if (phba->lmt & LMT_16Gb)
2295                 max_speed = 16;
2296         else if (phba->lmt & LMT_10Gb)
2297                 max_speed = 10;
2298         else if (phba->lmt & LMT_8Gb)
2299                 max_speed = 8;
2300         else if (phba->lmt & LMT_4Gb)
2301                 max_speed = 4;
2302         else if (phba->lmt & LMT_2Gb)
2303                 max_speed = 2;
2304         else if (phba->lmt & LMT_1Gb)
2305                 max_speed = 1;
2306         else
2307                 max_speed = 0;
2308
2309         vp = &phba->vpd;
2310
2311         switch (dev_id) {
2312         case PCI_DEVICE_ID_FIREFLY:
2313                 m = (typeof(m)){"LP6000", "PCI",
2314                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2315                 break;
2316         case PCI_DEVICE_ID_SUPERFLY:
2317                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2318                         m = (typeof(m)){"LP7000", "PCI", ""};
2319                 else
2320                         m = (typeof(m)){"LP7000E", "PCI", ""};
2321                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2322                 break;
2323         case PCI_DEVICE_ID_DRAGONFLY:
2324                 m = (typeof(m)){"LP8000", "PCI",
2325                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2326                 break;
2327         case PCI_DEVICE_ID_CENTAUR:
2328                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2329                         m = (typeof(m)){"LP9002", "PCI", ""};
2330                 else
2331                         m = (typeof(m)){"LP9000", "PCI", ""};
2332                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2333                 break;
2334         case PCI_DEVICE_ID_RFLY:
2335                 m = (typeof(m)){"LP952", "PCI",
2336                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2337                 break;
2338         case PCI_DEVICE_ID_PEGASUS:
2339                 m = (typeof(m)){"LP9802", "PCI-X",
2340                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2341                 break;
2342         case PCI_DEVICE_ID_THOR:
2343                 m = (typeof(m)){"LP10000", "PCI-X",
2344                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2345                 break;
2346         case PCI_DEVICE_ID_VIPER:
2347                 m = (typeof(m)){"LPX1000",  "PCI-X",
2348                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2349                 break;
2350         case PCI_DEVICE_ID_PFLY:
2351                 m = (typeof(m)){"LP982", "PCI-X",
2352                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2353                 break;
2354         case PCI_DEVICE_ID_TFLY:
2355                 m = (typeof(m)){"LP1050", "PCI-X",
2356                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2357                 break;
2358         case PCI_DEVICE_ID_HELIOS:
2359                 m = (typeof(m)){"LP11000", "PCI-X2",
2360                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2361                 break;
2362         case PCI_DEVICE_ID_HELIOS_SCSP:
2363                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2364                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2365                 break;
2366         case PCI_DEVICE_ID_HELIOS_DCSP:
2367                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2368                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2369                 break;
2370         case PCI_DEVICE_ID_NEPTUNE:
2371                 m = (typeof(m)){"LPe1000", "PCIe",
2372                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2373                 break;
2374         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2375                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2376                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2377                 break;
2378         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2379                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2380                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2381                 break;
2382         case PCI_DEVICE_ID_BMID:
2383                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2384                 break;
2385         case PCI_DEVICE_ID_BSMB:
2386                 m = (typeof(m)){"LP111", "PCI-X2",
2387                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2388                 break;
2389         case PCI_DEVICE_ID_ZEPHYR:
2390                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2391                 break;
2392         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2393                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2394                 break;
2395         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2396                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2397                 GE = 1;
2398                 break;
2399         case PCI_DEVICE_ID_ZMID:
2400                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2401                 break;
2402         case PCI_DEVICE_ID_ZSMB:
2403                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2404                 break;
2405         case PCI_DEVICE_ID_LP101:
2406                 m = (typeof(m)){"LP101", "PCI-X",
2407                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2408                 break;
2409         case PCI_DEVICE_ID_LP10000S:
2410                 m = (typeof(m)){"LP10000-S", "PCI",
2411                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2412                 break;
2413         case PCI_DEVICE_ID_LP11000S:
2414                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2415                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2416                 break;
2417         case PCI_DEVICE_ID_LPE11000S:
2418                 m = (typeof(m)){"LPe11000-S", "PCIe",
2419                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2420                 break;
2421         case PCI_DEVICE_ID_SAT:
2422                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2423                 break;
2424         case PCI_DEVICE_ID_SAT_MID:
2425                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2426                 break;
2427         case PCI_DEVICE_ID_SAT_SMB:
2428                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2429                 break;
2430         case PCI_DEVICE_ID_SAT_DCSP:
2431                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2432                 break;
2433         case PCI_DEVICE_ID_SAT_SCSP:
2434                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2435                 break;
2436         case PCI_DEVICE_ID_SAT_S:
2437                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2438                 break;
2439         case PCI_DEVICE_ID_HORNET:
2440                 m = (typeof(m)){"LP21000", "PCIe",
2441                                 "Obsolete, Unsupported FCoE Adapter"};
2442                 GE = 1;
2443                 break;
2444         case PCI_DEVICE_ID_PROTEUS_VF:
2445                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2446                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2447                 break;
2448         case PCI_DEVICE_ID_PROTEUS_PF:
2449                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2450                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2451                 break;
2452         case PCI_DEVICE_ID_PROTEUS_S:
2453                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2454                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2455                 break;
2456         case PCI_DEVICE_ID_TIGERSHARK:
2457                 oneConnect = 1;
2458                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2459                 break;
2460         case PCI_DEVICE_ID_TOMCAT:
2461                 oneConnect = 1;
2462                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2463                 break;
2464         case PCI_DEVICE_ID_FALCON:
2465                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2466                                 "EmulexSecure Fibre"};
2467                 break;
2468         case PCI_DEVICE_ID_BALIUS:
2469                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2470                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2471                 break;
2472         case PCI_DEVICE_ID_LANCER_FC:
2473                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2474                 break;
2475         case PCI_DEVICE_ID_LANCER_FC_VF:
2476                 m = (typeof(m)){"LPe16000", "PCIe",
2477                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2478                 break;
2479         case PCI_DEVICE_ID_LANCER_FCOE:
2480                 oneConnect = 1;
2481                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2482                 break;
2483         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2484                 oneConnect = 1;
2485                 m = (typeof(m)){"OCe15100", "PCIe",
2486                                 "Obsolete, Unsupported FCoE"};
2487                 break;
2488         case PCI_DEVICE_ID_LANCER_G6_FC:
2489                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2490                 break;
2491         case PCI_DEVICE_ID_LANCER_G7_FC:
2492                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2493                 break;
2494         case PCI_DEVICE_ID_SKYHAWK:
2495         case PCI_DEVICE_ID_SKYHAWK_VF:
2496                 oneConnect = 1;
2497                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2498                 break;
2499         default:
2500                 m = (typeof(m)){"Unknown", "", ""};
2501                 break;
2502         }
2503
2504         if (mdp && mdp[0] == '\0')
2505                 snprintf(mdp, 79,"%s", m.name);
2506         /*
2507          * oneConnect hba requires special processing, they are all initiators
2508          * and we put the port number on the end
2509          */
2510         if (descp && descp[0] == '\0') {
2511                 if (oneConnect)
2512                         snprintf(descp, 255,
2513                                 "Emulex OneConnect %s, %s Initiator %s",
2514                                 m.name, m.function,
2515                                 phba->Port);
2516                 else if (max_speed == 0)
2517                         snprintf(descp, 255,
2518                                 "Emulex %s %s %s",
2519                                 m.name, m.bus, m.function);
2520                 else
2521                         snprintf(descp, 255,
2522                                 "Emulex %s %d%s %s %s",
2523                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2524                                 m.bus, m.function);
2525         }
2526 }
2527
2528 /**
2529  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2530  * @phba: pointer to lpfc hba data structure.
2531  * @pring: pointer to a IOCB ring.
2532  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2533  *
2534  * This routine posts a given number of IOCBs with the associated DMA buffer
2535  * descriptors specified by the cnt argument to the given IOCB ring.
2536  *
2537  * Return codes
2538  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2539  **/
2540 int
2541 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2542 {
2543         IOCB_t *icmd;
2544         struct lpfc_iocbq *iocb;
2545         struct lpfc_dmabuf *mp1, *mp2;
2546
2547         cnt += pring->missbufcnt;
2548
2549         /* While there are buffers to post */
2550         while (cnt > 0) {
2551                 /* Allocate buffer for  command iocb */
2552                 iocb = lpfc_sli_get_iocbq(phba);
2553                 if (iocb == NULL) {
2554                         pring->missbufcnt = cnt;
2555                         return cnt;
2556                 }
2557                 icmd = &iocb->iocb;
2558
2559                 /* 2 buffers can be posted per command */
2560                 /* Allocate buffer to post */
2561                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2562                 if (mp1)
2563                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2564                 if (!mp1 || !mp1->virt) {
2565                         kfree(mp1);
2566                         lpfc_sli_release_iocbq(phba, iocb);
2567                         pring->missbufcnt = cnt;
2568                         return cnt;
2569                 }
2570
2571                 INIT_LIST_HEAD(&mp1->list);
2572                 /* Allocate buffer to post */
2573                 if (cnt > 1) {
2574                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2575                         if (mp2)
2576                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2577                                                             &mp2->phys);
2578                         if (!mp2 || !mp2->virt) {
2579                                 kfree(mp2);
2580                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2581                                 kfree(mp1);
2582                                 lpfc_sli_release_iocbq(phba, iocb);
2583                                 pring->missbufcnt = cnt;
2584                                 return cnt;
2585                         }
2586
2587                         INIT_LIST_HEAD(&mp2->list);
2588                 } else {
2589                         mp2 = NULL;
2590                 }
2591
2592                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2593                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2594                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2595                 icmd->ulpBdeCount = 1;
2596                 cnt--;
2597                 if (mp2) {
2598                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2599                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2600                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2601                         cnt--;
2602                         icmd->ulpBdeCount = 2;
2603                 }
2604
2605                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2606                 icmd->ulpLe = 1;
2607
2608                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2609                     IOCB_ERROR) {
2610                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2611                         kfree(mp1);
2612                         cnt++;
2613                         if (mp2) {
2614                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2615                                 kfree(mp2);
2616                                 cnt++;
2617                         }
2618                         lpfc_sli_release_iocbq(phba, iocb);
2619                         pring->missbufcnt = cnt;
2620                         return cnt;
2621                 }
2622                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2623                 if (mp2)
2624                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2625         }
2626         pring->missbufcnt = 0;
2627         return 0;
2628 }
2629
2630 /**
2631  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2632  * @phba: pointer to lpfc hba data structure.
2633  *
2634  * This routine posts initial receive IOCB buffers to the ELS ring. The
2635  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2636  * set to 64 IOCBs. SLI3 only.
2637  *
2638  * Return codes
2639  *   0 - success (currently always success)
2640  **/
2641 static int
2642 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2643 {
2644         struct lpfc_sli *psli = &phba->sli;
2645
2646         /* Ring 0, ELS / CT buffers */
2647         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2648         /* Ring 2 - FCP no buffers needed */
2649
2650         return 0;
2651 }
2652
2653 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2654
2655 /**
2656  * lpfc_sha_init - Set up initial array of hash table entries
2657  * @HashResultPointer: pointer to an array as hash table.
2658  *
2659  * This routine sets up the initial values to the array of hash table entries
2660  * for the LC HBAs.
2661  **/
2662 static void
2663 lpfc_sha_init(uint32_t * HashResultPointer)
2664 {
2665         HashResultPointer[0] = 0x67452301;
2666         HashResultPointer[1] = 0xEFCDAB89;
2667         HashResultPointer[2] = 0x98BADCFE;
2668         HashResultPointer[3] = 0x10325476;
2669         HashResultPointer[4] = 0xC3D2E1F0;
2670 }
2671
2672 /**
2673  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2674  * @HashResultPointer: pointer to an initial/result hash table.
2675  * @HashWorkingPointer: pointer to an working hash table.
2676  *
2677  * This routine iterates an initial hash table pointed by @HashResultPointer
2678  * with the values from the working hash table pointeed by @HashWorkingPointer.
2679  * The results are putting back to the initial hash table, returned through
2680  * the @HashResultPointer as the result hash table.
2681  **/
2682 static void
2683 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2684 {
2685         int t;
2686         uint32_t TEMP;
2687         uint32_t A, B, C, D, E;
2688         t = 16;
2689         do {
2690                 HashWorkingPointer[t] =
2691                     S(1,
2692                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2693                                                                      8] ^
2694                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2695         } while (++t <= 79);
2696         t = 0;
2697         A = HashResultPointer[0];
2698         B = HashResultPointer[1];
2699         C = HashResultPointer[2];
2700         D = HashResultPointer[3];
2701         E = HashResultPointer[4];
2702
2703         do {
2704                 if (t < 20) {
2705                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2706                 } else if (t < 40) {
2707                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2708                 } else if (t < 60) {
2709                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2710                 } else {
2711                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2712                 }
2713                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2714                 E = D;
2715                 D = C;
2716                 C = S(30, B);
2717                 B = A;
2718                 A = TEMP;
2719         } while (++t <= 79);
2720
2721         HashResultPointer[0] += A;
2722         HashResultPointer[1] += B;
2723         HashResultPointer[2] += C;
2724         HashResultPointer[3] += D;
2725         HashResultPointer[4] += E;
2726
2727 }
2728
2729 /**
2730  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2731  * @RandomChallenge: pointer to the entry of host challenge random number array.
2732  * @HashWorking: pointer to the entry of the working hash array.
2733  *
2734  * This routine calculates the working hash array referred by @HashWorking
2735  * from the challenge random numbers associated with the host, referred by
2736  * @RandomChallenge. The result is put into the entry of the working hash
2737  * array and returned by reference through @HashWorking.
2738  **/
2739 static void
2740 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2741 {
2742         *HashWorking = (*RandomChallenge ^ *HashWorking);
2743 }
2744
2745 /**
2746  * lpfc_hba_init - Perform special handling for LC HBA initialization
2747  * @phba: pointer to lpfc hba data structure.
2748  * @hbainit: pointer to an array of unsigned 32-bit integers.
2749  *
2750  * This routine performs the special handling for LC HBA initialization.
2751  **/
2752 void
2753 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2754 {
2755         int t;
2756         uint32_t *HashWorking;
2757         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2758
2759         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2760         if (!HashWorking)
2761                 return;
2762
2763         HashWorking[0] = HashWorking[78] = *pwwnn++;
2764         HashWorking[1] = HashWorking[79] = *pwwnn;
2765
2766         for (t = 0; t < 7; t++)
2767                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2768
2769         lpfc_sha_init(hbainit);
2770         lpfc_sha_iterate(hbainit, HashWorking);
2771         kfree(HashWorking);
2772 }
2773
2774 /**
2775  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2776  * @vport: pointer to a virtual N_Port data structure.
2777  *
2778  * This routine performs the necessary cleanups before deleting the @vport.
2779  * It invokes the discovery state machine to perform necessary state
2780  * transitions and to release the ndlps associated with the @vport. Note,
2781  * the physical port is treated as @vport 0.
2782  **/
2783 void
2784 lpfc_cleanup(struct lpfc_vport *vport)
2785 {
2786         struct lpfc_hba   *phba = vport->phba;
2787         struct lpfc_nodelist *ndlp, *next_ndlp;
2788         int i = 0;
2789
2790         if (phba->link_state > LPFC_LINK_DOWN)
2791                 lpfc_port_link_failure(vport);
2792
2793         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2794                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2795                         ndlp = lpfc_enable_node(vport, ndlp,
2796                                                 NLP_STE_UNUSED_NODE);
2797                         if (!ndlp)
2798                                 continue;
2799                         spin_lock_irq(&phba->ndlp_lock);
2800                         NLP_SET_FREE_REQ(ndlp);
2801                         spin_unlock_irq(&phba->ndlp_lock);
2802                         /* Trigger the release of the ndlp memory */
2803                         lpfc_nlp_put(ndlp);
2804                         continue;
2805                 }
2806                 spin_lock_irq(&phba->ndlp_lock);
2807                 if (NLP_CHK_FREE_REQ(ndlp)) {
2808                         /* The ndlp should not be in memory free mode already */
2809                         spin_unlock_irq(&phba->ndlp_lock);
2810                         continue;
2811                 } else
2812                         /* Indicate request for freeing ndlp memory */
2813                         NLP_SET_FREE_REQ(ndlp);
2814                 spin_unlock_irq(&phba->ndlp_lock);
2815
2816                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2817                     ndlp->nlp_DID == Fabric_DID) {
2818                         /* Just free up ndlp with Fabric_DID for vports */
2819                         lpfc_nlp_put(ndlp);
2820                         continue;
2821                 }
2822
2823                 /* take care of nodes in unused state before the state
2824                  * machine taking action.
2825                  */
2826                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2827                         lpfc_nlp_put(ndlp);
2828                         continue;
2829                 }
2830
2831                 if (ndlp->nlp_type & NLP_FABRIC)
2832                         lpfc_disc_state_machine(vport, ndlp, NULL,
2833                                         NLP_EVT_DEVICE_RECOVERY);
2834
2835                 lpfc_disc_state_machine(vport, ndlp, NULL,
2836                                              NLP_EVT_DEVICE_RM);
2837         }
2838
2839         /* At this point, ALL ndlp's should be gone
2840          * because of the previous NLP_EVT_DEVICE_RM.
2841          * Lets wait for this to happen, if needed.
2842          */
2843         while (!list_empty(&vport->fc_nodes)) {
2844                 if (i++ > 3000) {
2845                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2846                                 "0233 Nodelist not empty\n");
2847                         list_for_each_entry_safe(ndlp, next_ndlp,
2848                                                 &vport->fc_nodes, nlp_listp) {
2849                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2850                                                 LOG_NODE,
2851                                                 "0282 did:x%x ndlp:x%px "
2852                                                 "usgmap:x%x refcnt:%d\n",
2853                                                 ndlp->nlp_DID, (void *)ndlp,
2854                                                 ndlp->nlp_usg_map,
2855                                                 kref_read(&ndlp->kref));
2856                         }
2857                         break;
2858                 }
2859
2860                 /* Wait for any activity on ndlps to settle */
2861                 msleep(10);
2862         }
2863         lpfc_cleanup_vports_rrqs(vport, NULL);
2864 }
2865
2866 /**
2867  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2868  * @vport: pointer to a virtual N_Port data structure.
2869  *
2870  * This routine stops all the timers associated with a @vport. This function
2871  * is invoked before disabling or deleting a @vport. Note that the physical
2872  * port is treated as @vport 0.
2873  **/
2874 void
2875 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2876 {
2877         del_timer_sync(&vport->els_tmofunc);
2878         del_timer_sync(&vport->delayed_disc_tmo);
2879         lpfc_can_disctmo(vport);
2880         return;
2881 }
2882
2883 /**
2884  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2885  * @phba: pointer to lpfc hba data structure.
2886  *
2887  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2888  * caller of this routine should already hold the host lock.
2889  **/
2890 void
2891 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2892 {
2893         /* Clear pending FCF rediscovery wait flag */
2894         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2895
2896         /* Now, try to stop the timer */
2897         del_timer(&phba->fcf.redisc_wait);
2898 }
2899
2900 /**
2901  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2902  * @phba: pointer to lpfc hba data structure.
2903  *
2904  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2905  * checks whether the FCF rediscovery wait timer is pending with the host
2906  * lock held before proceeding with disabling the timer and clearing the
2907  * wait timer pendig flag.
2908  **/
2909 void
2910 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2911 {
2912         spin_lock_irq(&phba->hbalock);
2913         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2914                 /* FCF rediscovery timer already fired or stopped */
2915                 spin_unlock_irq(&phba->hbalock);
2916                 return;
2917         }
2918         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2919         /* Clear failover in progress flags */
2920         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2921         spin_unlock_irq(&phba->hbalock);
2922 }
2923
2924 /**
2925  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2926  * @phba: pointer to lpfc hba data structure.
2927  *
2928  * This routine stops all the timers associated with a HBA. This function is
2929  * invoked before either putting a HBA offline or unloading the driver.
2930  **/
2931 void
2932 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2933 {
2934         if (phba->pport)
2935                 lpfc_stop_vport_timers(phba->pport);
2936         cancel_delayed_work_sync(&phba->eq_delay_work);
2937         del_timer_sync(&phba->sli.mbox_tmo);
2938         del_timer_sync(&phba->fabric_block_timer);
2939         del_timer_sync(&phba->eratt_poll);
2940         del_timer_sync(&phba->hb_tmofunc);
2941         if (phba->sli_rev == LPFC_SLI_REV4) {
2942                 del_timer_sync(&phba->rrq_tmr);
2943                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2944         }
2945         phba->hb_outstanding = 0;
2946
2947         switch (phba->pci_dev_grp) {
2948         case LPFC_PCI_DEV_LP:
2949                 /* Stop any LightPulse device specific driver timers */
2950                 del_timer_sync(&phba->fcp_poll_timer);
2951                 break;
2952         case LPFC_PCI_DEV_OC:
2953                 /* Stop any OneConnect device specific driver timers */
2954                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2955                 break;
2956         default:
2957                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2958                                 "0297 Invalid device group (x%x)\n",
2959                                 phba->pci_dev_grp);
2960                 break;
2961         }
2962         return;
2963 }
2964
2965 /**
2966  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2967  * @phba: pointer to lpfc hba data structure.
2968  *
2969  * This routine marks a HBA's management interface as blocked. Once the HBA's
2970  * management interface is marked as blocked, all the user space access to
2971  * the HBA, whether they are from sysfs interface or libdfc interface will
2972  * all be blocked. The HBA is set to block the management interface when the
2973  * driver prepares the HBA interface for online or offline.
2974  **/
2975 static void
2976 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2977 {
2978         unsigned long iflag;
2979         uint8_t actcmd = MBX_HEARTBEAT;
2980         unsigned long timeout;
2981
2982         spin_lock_irqsave(&phba->hbalock, iflag);
2983         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2984         spin_unlock_irqrestore(&phba->hbalock, iflag);
2985         if (mbx_action == LPFC_MBX_NO_WAIT)
2986                 return;
2987         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2988         spin_lock_irqsave(&phba->hbalock, iflag);
2989         if (phba->sli.mbox_active) {
2990                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2991                 /* Determine how long we might wait for the active mailbox
2992                  * command to be gracefully completed by firmware.
2993                  */
2994                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2995                                 phba->sli.mbox_active) * 1000) + jiffies;
2996         }
2997         spin_unlock_irqrestore(&phba->hbalock, iflag);
2998
2999         /* Wait for the outstnading mailbox command to complete */
3000         while (phba->sli.mbox_active) {
3001                 /* Check active mailbox complete status every 2ms */
3002                 msleep(2);
3003                 if (time_after(jiffies, timeout)) {
3004                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3005                                 "2813 Mgmt IO is Blocked %x "
3006                                 "- mbox cmd %x still active\n",
3007                                 phba->sli.sli_flag, actcmd);
3008                         break;
3009                 }
3010         }
3011 }
3012
3013 /**
3014  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3015  * @phba: pointer to lpfc hba data structure.
3016  *
3017  * Allocate RPIs for all active remote nodes. This is needed whenever
3018  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3019  * is to fixup the temporary rpi assignments.
3020  **/
3021 void
3022 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3023 {
3024         struct lpfc_nodelist  *ndlp, *next_ndlp;
3025         struct lpfc_vport **vports;
3026         int i, rpi;
3027         unsigned long flags;
3028
3029         if (phba->sli_rev != LPFC_SLI_REV4)
3030                 return;
3031
3032         vports = lpfc_create_vport_work_array(phba);
3033         if (vports == NULL)
3034                 return;
3035
3036         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3037                 if (vports[i]->load_flag & FC_UNLOADING)
3038                         continue;
3039
3040                 list_for_each_entry_safe(ndlp, next_ndlp,
3041                                          &vports[i]->fc_nodes,
3042                                          nlp_listp) {
3043                         if (!NLP_CHK_NODE_ACT(ndlp))
3044                                 continue;
3045                         rpi = lpfc_sli4_alloc_rpi(phba);
3046                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3047                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3048                                 NLP_CLR_NODE_ACT(ndlp);
3049                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3050                                 continue;
3051                         }
3052                         ndlp->nlp_rpi = rpi;
3053                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3054                                          LOG_NODE | LOG_DISCOVERY,
3055                                          "0009 Assign RPI x%x to ndlp x%px "
3056                                          "DID:x%06x flg:x%x map:x%x\n",
3057                                          ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3058                                          ndlp->nlp_flag, ndlp->nlp_usg_map);
3059                 }
3060         }
3061         lpfc_destroy_vport_work_array(phba, vports);
3062 }
3063
3064 /**
3065  * lpfc_create_expedite_pool - create expedite pool
3066  * @phba: pointer to lpfc hba data structure.
3067  *
3068  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3069  * to expedite pool. Mark them as expedite.
3070  **/
3071 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3072 {
3073         struct lpfc_sli4_hdw_queue *qp;
3074         struct lpfc_io_buf *lpfc_ncmd;
3075         struct lpfc_io_buf *lpfc_ncmd_next;
3076         struct lpfc_epd_pool *epd_pool;
3077         unsigned long iflag;
3078
3079         epd_pool = &phba->epd_pool;
3080         qp = &phba->sli4_hba.hdwq[0];
3081
3082         spin_lock_init(&epd_pool->lock);
3083         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3084         spin_lock(&epd_pool->lock);
3085         INIT_LIST_HEAD(&epd_pool->list);
3086         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3087                                  &qp->lpfc_io_buf_list_put, list) {
3088                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3089                 lpfc_ncmd->expedite = true;
3090                 qp->put_io_bufs--;
3091                 epd_pool->count++;
3092                 if (epd_pool->count >= XRI_BATCH)
3093                         break;
3094         }
3095         spin_unlock(&epd_pool->lock);
3096         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3097 }
3098
3099 /**
3100  * lpfc_destroy_expedite_pool - destroy expedite pool
3101  * @phba: pointer to lpfc hba data structure.
3102  *
3103  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3104  * of HWQ 0. Clear the mark.
3105  **/
3106 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3107 {
3108         struct lpfc_sli4_hdw_queue *qp;
3109         struct lpfc_io_buf *lpfc_ncmd;
3110         struct lpfc_io_buf *lpfc_ncmd_next;
3111         struct lpfc_epd_pool *epd_pool;
3112         unsigned long iflag;
3113
3114         epd_pool = &phba->epd_pool;
3115         qp = &phba->sli4_hba.hdwq[0];
3116
3117         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3118         spin_lock(&epd_pool->lock);
3119         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3120                                  &epd_pool->list, list) {
3121                 list_move_tail(&lpfc_ncmd->list,
3122                                &qp->lpfc_io_buf_list_put);
3123                 lpfc_ncmd->flags = false;
3124                 qp->put_io_bufs++;
3125                 epd_pool->count--;
3126         }
3127         spin_unlock(&epd_pool->lock);
3128         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3129 }
3130
3131 /**
3132  * lpfc_create_multixri_pools - create multi-XRI pools
3133  * @phba: pointer to lpfc hba data structure.
3134  *
3135  * This routine initialize public, private per HWQ. Then, move XRIs from
3136  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3137  * Initialized.
3138  **/
3139 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3140 {
3141         u32 i, j;
3142         u32 hwq_count;
3143         u32 count_per_hwq;
3144         struct lpfc_io_buf *lpfc_ncmd;
3145         struct lpfc_io_buf *lpfc_ncmd_next;
3146         unsigned long iflag;
3147         struct lpfc_sli4_hdw_queue *qp;
3148         struct lpfc_multixri_pool *multixri_pool;
3149         struct lpfc_pbl_pool *pbl_pool;
3150         struct lpfc_pvt_pool *pvt_pool;
3151
3152         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3153                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3154                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3155                         phba->sli4_hba.io_xri_cnt);
3156
3157         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3158                 lpfc_create_expedite_pool(phba);
3159
3160         hwq_count = phba->cfg_hdw_queue;
3161         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3162
3163         for (i = 0; i < hwq_count; i++) {
3164                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3165
3166                 if (!multixri_pool) {
3167                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3168                                         "1238 Failed to allocate memory for "
3169                                         "multixri_pool\n");
3170
3171                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3172                                 lpfc_destroy_expedite_pool(phba);
3173
3174                         j = 0;
3175                         while (j < i) {
3176                                 qp = &phba->sli4_hba.hdwq[j];
3177                                 kfree(qp->p_multixri_pool);
3178                                 j++;
3179                         }
3180                         phba->cfg_xri_rebalancing = 0;
3181                         return;
3182                 }
3183
3184                 qp = &phba->sli4_hba.hdwq[i];
3185                 qp->p_multixri_pool = multixri_pool;
3186
3187                 multixri_pool->xri_limit = count_per_hwq;
3188                 multixri_pool->rrb_next_hwqid = i;
3189
3190                 /* Deal with public free xri pool */
3191                 pbl_pool = &multixri_pool->pbl_pool;
3192                 spin_lock_init(&pbl_pool->lock);
3193                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3194                 spin_lock(&pbl_pool->lock);
3195                 INIT_LIST_HEAD(&pbl_pool->list);
3196                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3197                                          &qp->lpfc_io_buf_list_put, list) {
3198                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3199                         qp->put_io_bufs--;
3200                         pbl_pool->count++;
3201                 }
3202                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3203                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3204                                 pbl_pool->count, i);
3205                 spin_unlock(&pbl_pool->lock);
3206                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3207
3208                 /* Deal with private free xri pool */
3209                 pvt_pool = &multixri_pool->pvt_pool;
3210                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3211                 pvt_pool->low_watermark = XRI_BATCH;
3212                 spin_lock_init(&pvt_pool->lock);
3213                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3214                 INIT_LIST_HEAD(&pvt_pool->list);
3215                 pvt_pool->count = 0;
3216                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3217         }
3218 }
3219
3220 /**
3221  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3222  * @phba: pointer to lpfc hba data structure.
3223  *
3224  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3225  **/
3226 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3227 {
3228         u32 i;
3229         u32 hwq_count;
3230         struct lpfc_io_buf *lpfc_ncmd;
3231         struct lpfc_io_buf *lpfc_ncmd_next;
3232         unsigned long iflag;
3233         struct lpfc_sli4_hdw_queue *qp;
3234         struct lpfc_multixri_pool *multixri_pool;
3235         struct lpfc_pbl_pool *pbl_pool;
3236         struct lpfc_pvt_pool *pvt_pool;
3237
3238         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3239                 lpfc_destroy_expedite_pool(phba);
3240
3241         if (!(phba->pport->load_flag & FC_UNLOADING))
3242                 lpfc_sli_flush_io_rings(phba);
3243
3244         hwq_count = phba->cfg_hdw_queue;
3245
3246         for (i = 0; i < hwq_count; i++) {
3247                 qp = &phba->sli4_hba.hdwq[i];
3248                 multixri_pool = qp->p_multixri_pool;
3249                 if (!multixri_pool)
3250                         continue;
3251
3252                 qp->p_multixri_pool = NULL;
3253
3254                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3255
3256                 /* Deal with public free xri pool */
3257                 pbl_pool = &multixri_pool->pbl_pool;
3258                 spin_lock(&pbl_pool->lock);
3259
3260                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3261                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3262                                 pbl_pool->count, i);
3263
3264                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3265                                          &pbl_pool->list, list) {
3266                         list_move_tail(&lpfc_ncmd->list,
3267                                        &qp->lpfc_io_buf_list_put);
3268                         qp->put_io_bufs++;
3269                         pbl_pool->count--;
3270                 }
3271
3272                 INIT_LIST_HEAD(&pbl_pool->list);
3273                 pbl_pool->count = 0;
3274
3275                 spin_unlock(&pbl_pool->lock);
3276
3277                 /* Deal with private free xri pool */
3278                 pvt_pool = &multixri_pool->pvt_pool;
3279                 spin_lock(&pvt_pool->lock);
3280
3281                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3282                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3283                                 pvt_pool->count, i);
3284
3285                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3286                                          &pvt_pool->list, list) {
3287                         list_move_tail(&lpfc_ncmd->list,
3288                                        &qp->lpfc_io_buf_list_put);
3289                         qp->put_io_bufs++;
3290                         pvt_pool->count--;
3291                 }
3292
3293                 INIT_LIST_HEAD(&pvt_pool->list);
3294                 pvt_pool->count = 0;
3295
3296                 spin_unlock(&pvt_pool->lock);
3297                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3298
3299                 kfree(multixri_pool);
3300         }
3301 }
3302
3303 /**
3304  * lpfc_online - Initialize and bring a HBA online
3305  * @phba: pointer to lpfc hba data structure.
3306  *
3307  * This routine initializes the HBA and brings a HBA online. During this
3308  * process, the management interface is blocked to prevent user space access
3309  * to the HBA interfering with the driver initialization.
3310  *
3311  * Return codes
3312  *   0 - successful
3313  *   1 - failed
3314  **/
3315 int
3316 lpfc_online(struct lpfc_hba *phba)
3317 {
3318         struct lpfc_vport *vport;
3319         struct lpfc_vport **vports;
3320         int i, error = 0;
3321         bool vpis_cleared = false;
3322
3323         if (!phba)
3324                 return 0;
3325         vport = phba->pport;
3326
3327         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3328                 return 0;
3329
3330         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3331                         "0458 Bring Adapter online\n");
3332
3333         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3334
3335         if (phba->sli_rev == LPFC_SLI_REV4) {
3336                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3337                         lpfc_unblock_mgmt_io(phba);
3338                         return 1;
3339                 }
3340                 spin_lock_irq(&phba->hbalock);
3341                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3342                         vpis_cleared = true;
3343                 spin_unlock_irq(&phba->hbalock);
3344
3345                 /* Reestablish the local initiator port.
3346                  * The offline process destroyed the previous lport.
3347                  */
3348                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3349                                 !phba->nvmet_support) {
3350                         error = lpfc_nvme_create_localport(phba->pport);
3351                         if (error)
3352                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3353                                         "6132 NVME restore reg failed "
3354                                         "on nvmei error x%x\n", error);
3355                 }
3356         } else {
3357                 lpfc_sli_queue_init(phba);
3358                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3359                         lpfc_unblock_mgmt_io(phba);
3360                         return 1;
3361                 }
3362         }
3363
3364         vports = lpfc_create_vport_work_array(phba);
3365         if (vports != NULL) {
3366                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3367                         struct Scsi_Host *shost;
3368                         shost = lpfc_shost_from_vport(vports[i]);
3369                         spin_lock_irq(shost->host_lock);
3370                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3371                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3372                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3373                         if (phba->sli_rev == LPFC_SLI_REV4) {
3374                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3375                                 if ((vpis_cleared) &&
3376                                     (vports[i]->port_type !=
3377                                         LPFC_PHYSICAL_PORT))
3378                                         vports[i]->vpi = 0;
3379                         }
3380                         spin_unlock_irq(shost->host_lock);
3381                 }
3382         }
3383         lpfc_destroy_vport_work_array(phba, vports);
3384
3385         if (phba->cfg_xri_rebalancing)
3386                 lpfc_create_multixri_pools(phba);
3387
3388         lpfc_cpuhp_add(phba);
3389
3390         lpfc_unblock_mgmt_io(phba);
3391         return 0;
3392 }
3393
3394 /**
3395  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3396  * @phba: pointer to lpfc hba data structure.
3397  *
3398  * This routine marks a HBA's management interface as not blocked. Once the
3399  * HBA's management interface is marked as not blocked, all the user space
3400  * access to the HBA, whether they are from sysfs interface or libdfc
3401  * interface will be allowed. The HBA is set to block the management interface
3402  * when the driver prepares the HBA interface for online or offline and then
3403  * set to unblock the management interface afterwards.
3404  **/
3405 void
3406 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3407 {
3408         unsigned long iflag;
3409
3410         spin_lock_irqsave(&phba->hbalock, iflag);
3411         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3412         spin_unlock_irqrestore(&phba->hbalock, iflag);
3413 }
3414
3415 /**
3416  * lpfc_offline_prep - Prepare a HBA to be brought offline
3417  * @phba: pointer to lpfc hba data structure.
3418  *
3419  * This routine is invoked to prepare a HBA to be brought offline. It performs
3420  * unregistration login to all the nodes on all vports and flushes the mailbox
3421  * queue to make it ready to be brought offline.
3422  **/
3423 void
3424 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3425 {
3426         struct lpfc_vport *vport = phba->pport;
3427         struct lpfc_nodelist  *ndlp, *next_ndlp;
3428         struct lpfc_vport **vports;
3429         struct Scsi_Host *shost;
3430         int i;
3431
3432         if (vport->fc_flag & FC_OFFLINE_MODE)
3433                 return;
3434
3435         lpfc_block_mgmt_io(phba, mbx_action);
3436
3437         lpfc_linkdown(phba);
3438
3439         /* Issue an unreg_login to all nodes on all vports */
3440         vports = lpfc_create_vport_work_array(phba);
3441         if (vports != NULL) {
3442                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3443                         if (vports[i]->load_flag & FC_UNLOADING)
3444                                 continue;
3445                         shost = lpfc_shost_from_vport(vports[i]);
3446                         spin_lock_irq(shost->host_lock);
3447                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3448                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3449                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3450                         spin_unlock_irq(shost->host_lock);
3451
3452                         shost = lpfc_shost_from_vport(vports[i]);
3453                         list_for_each_entry_safe(ndlp, next_ndlp,
3454                                                  &vports[i]->fc_nodes,
3455                                                  nlp_listp) {
3456                                 if ((!NLP_CHK_NODE_ACT(ndlp)) ||
3457                                     ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
3458                                         /* Driver must assume RPI is invalid for
3459                                          * any unused or inactive node.
3460                                          */
3461                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3462                                         continue;
3463                                 }
3464
3465                                 if (ndlp->nlp_type & NLP_FABRIC) {
3466                                         lpfc_disc_state_machine(vports[i], ndlp,
3467                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3468                                         lpfc_disc_state_machine(vports[i], ndlp,
3469                                                 NULL, NLP_EVT_DEVICE_RM);
3470                                 }
3471                                 spin_lock_irq(shost->host_lock);
3472                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3473                                 spin_unlock_irq(shost->host_lock);
3474                                 /*
3475                                  * Whenever an SLI4 port goes offline, free the
3476                                  * RPI. Get a new RPI when the adapter port
3477                                  * comes back online.
3478                                  */
3479                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3480                                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3481                                                  LOG_NODE | LOG_DISCOVERY,
3482                                                  "0011 Free RPI x%x on "
3483                                                  "ndlp:x%px did x%x "
3484                                                  "usgmap:x%x\n",
3485                                                  ndlp->nlp_rpi, ndlp,
3486                                                  ndlp->nlp_DID,
3487                                                  ndlp->nlp_usg_map);
3488                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3489                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3490                                 }
3491                                 lpfc_unreg_rpi(vports[i], ndlp);
3492                         }
3493                 }
3494         }
3495         lpfc_destroy_vport_work_array(phba, vports);
3496
3497         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3498
3499         if (phba->wq)
3500                 flush_workqueue(phba->wq);
3501 }
3502
3503 /**
3504  * lpfc_offline - Bring a HBA offline
3505  * @phba: pointer to lpfc hba data structure.
3506  *
3507  * This routine actually brings a HBA offline. It stops all the timers
3508  * associated with the HBA, brings down the SLI layer, and eventually
3509  * marks the HBA as in offline state for the upper layer protocol.
3510  **/
3511 void
3512 lpfc_offline(struct lpfc_hba *phba)
3513 {
3514         struct Scsi_Host  *shost;
3515         struct lpfc_vport **vports;
3516         int i;
3517
3518         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3519                 return;
3520
3521         /* stop port and all timers associated with this hba */
3522         lpfc_stop_port(phba);
3523
3524         /* Tear down the local and target port registrations.  The
3525          * nvme transports need to cleanup.
3526          */
3527         lpfc_nvmet_destroy_targetport(phba);
3528         lpfc_nvme_destroy_localport(phba->pport);
3529
3530         vports = lpfc_create_vport_work_array(phba);
3531         if (vports != NULL)
3532                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3533                         lpfc_stop_vport_timers(vports[i]);
3534         lpfc_destroy_vport_work_array(phba, vports);
3535         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3536                         "0460 Bring Adapter offline\n");
3537         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3538            now.  */
3539         lpfc_sli_hba_down(phba);
3540         spin_lock_irq(&phba->hbalock);
3541         phba->work_ha = 0;
3542         spin_unlock_irq(&phba->hbalock);
3543         vports = lpfc_create_vport_work_array(phba);
3544         if (vports != NULL)
3545                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3546                         shost = lpfc_shost_from_vport(vports[i]);
3547                         spin_lock_irq(shost->host_lock);
3548                         vports[i]->work_port_events = 0;
3549                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3550                         spin_unlock_irq(shost->host_lock);
3551                 }
3552         lpfc_destroy_vport_work_array(phba, vports);
3553         __lpfc_cpuhp_remove(phba);
3554
3555         if (phba->cfg_xri_rebalancing)
3556                 lpfc_destroy_multixri_pools(phba);
3557 }
3558
3559 /**
3560  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3561  * @phba: pointer to lpfc hba data structure.
3562  *
3563  * This routine is to free all the SCSI buffers and IOCBs from the driver
3564  * list back to kernel. It is called from lpfc_pci_remove_one to free
3565  * the internal resources before the device is removed from the system.
3566  **/
3567 static void
3568 lpfc_scsi_free(struct lpfc_hba *phba)
3569 {
3570         struct lpfc_io_buf *sb, *sb_next;
3571
3572         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3573                 return;
3574
3575         spin_lock_irq(&phba->hbalock);
3576
3577         /* Release all the lpfc_scsi_bufs maintained by this host. */
3578
3579         spin_lock(&phba->scsi_buf_list_put_lock);
3580         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3581                                  list) {
3582                 list_del(&sb->list);
3583                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3584                               sb->dma_handle);
3585                 kfree(sb);
3586                 phba->total_scsi_bufs--;
3587         }
3588         spin_unlock(&phba->scsi_buf_list_put_lock);
3589
3590         spin_lock(&phba->scsi_buf_list_get_lock);
3591         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3592                                  list) {
3593                 list_del(&sb->list);
3594                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3595                               sb->dma_handle);
3596                 kfree(sb);
3597                 phba->total_scsi_bufs--;
3598         }
3599         spin_unlock(&phba->scsi_buf_list_get_lock);
3600         spin_unlock_irq(&phba->hbalock);
3601 }
3602
3603 /**
3604  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3605  * @phba: pointer to lpfc hba data structure.
3606  *
3607  * This routine is to free all the IO buffers and IOCBs from the driver
3608  * list back to kernel. It is called from lpfc_pci_remove_one to free
3609  * the internal resources before the device is removed from the system.
3610  **/
3611 void
3612 lpfc_io_free(struct lpfc_hba *phba)
3613 {
3614         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3615         struct lpfc_sli4_hdw_queue *qp;
3616         int idx;
3617
3618         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3619                 qp = &phba->sli4_hba.hdwq[idx];
3620                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3621                 spin_lock(&qp->io_buf_list_put_lock);
3622                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3623                                          &qp->lpfc_io_buf_list_put,
3624                                          list) {
3625                         list_del(&lpfc_ncmd->list);
3626                         qp->put_io_bufs--;
3627                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3628                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3629                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3630                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3631                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3632                         kfree(lpfc_ncmd);
3633                         qp->total_io_bufs--;
3634                 }
3635                 spin_unlock(&qp->io_buf_list_put_lock);
3636
3637                 spin_lock(&qp->io_buf_list_get_lock);
3638                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3639                                          &qp->lpfc_io_buf_list_get,
3640                                          list) {
3641                         list_del(&lpfc_ncmd->list);
3642                         qp->get_io_bufs--;
3643                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3644                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3645                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3646                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3647                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3648                         kfree(lpfc_ncmd);
3649                         qp->total_io_bufs--;
3650                 }
3651                 spin_unlock(&qp->io_buf_list_get_lock);
3652         }
3653 }
3654
3655 /**
3656  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3657  * @phba: pointer to lpfc hba data structure.
3658  *
3659  * This routine first calculates the sizes of the current els and allocated
3660  * scsi sgl lists, and then goes through all sgls to updates the physical
3661  * XRIs assigned due to port function reset. During port initialization, the
3662  * current els and allocated scsi sgl lists are 0s.
3663  *
3664  * Return codes
3665  *   0 - successful (for now, it always returns 0)
3666  **/
3667 int
3668 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3669 {
3670         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3671         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3672         LIST_HEAD(els_sgl_list);
3673         int rc;
3674
3675         /*
3676          * update on pci function's els xri-sgl list
3677          */
3678         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3679
3680         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3681                 /* els xri-sgl expanded */
3682                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3683                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3684                                 "3157 ELS xri-sgl count increased from "
3685                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3686                                 els_xri_cnt);
3687                 /* allocate the additional els sgls */
3688                 for (i = 0; i < xri_cnt; i++) {
3689                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3690                                              GFP_KERNEL);
3691                         if (sglq_entry == NULL) {
3692                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3693                                                 "2562 Failure to allocate an "
3694                                                 "ELS sgl entry:%d\n", i);
3695                                 rc = -ENOMEM;
3696                                 goto out_free_mem;
3697                         }
3698                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3699                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3700                                                            &sglq_entry->phys);
3701                         if (sglq_entry->virt == NULL) {
3702                                 kfree(sglq_entry);
3703                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3704                                                 "2563 Failure to allocate an "
3705                                                 "ELS mbuf:%d\n", i);
3706                                 rc = -ENOMEM;
3707                                 goto out_free_mem;
3708                         }
3709                         sglq_entry->sgl = sglq_entry->virt;
3710                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3711                         sglq_entry->state = SGL_FREED;
3712                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3713                 }
3714                 spin_lock_irq(&phba->hbalock);
3715                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3716                 list_splice_init(&els_sgl_list,
3717                                  &phba->sli4_hba.lpfc_els_sgl_list);
3718                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3719                 spin_unlock_irq(&phba->hbalock);
3720         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3721                 /* els xri-sgl shrinked */
3722                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3723                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3724                                 "3158 ELS xri-sgl count decreased from "
3725                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3726                                 els_xri_cnt);
3727                 spin_lock_irq(&phba->hbalock);
3728                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3729                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3730                                  &els_sgl_list);
3731                 /* release extra els sgls from list */
3732                 for (i = 0; i < xri_cnt; i++) {
3733                         list_remove_head(&els_sgl_list,
3734                                          sglq_entry, struct lpfc_sglq, list);
3735                         if (sglq_entry) {
3736                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3737                                                  sglq_entry->phys);
3738                                 kfree(sglq_entry);
3739                         }
3740                 }
3741                 list_splice_init(&els_sgl_list,
3742                                  &phba->sli4_hba.lpfc_els_sgl_list);
3743                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3744                 spin_unlock_irq(&phba->hbalock);
3745         } else
3746                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3747                                 "3163 ELS xri-sgl count unchanged: %d\n",
3748                                 els_xri_cnt);
3749         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3750
3751         /* update xris to els sgls on the list */
3752         sglq_entry = NULL;
3753         sglq_entry_next = NULL;
3754         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3755                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3756                 lxri = lpfc_sli4_next_xritag(phba);
3757                 if (lxri == NO_XRI) {
3758                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3759                                         "2400 Failed to allocate xri for "
3760                                         "ELS sgl\n");
3761                         rc = -ENOMEM;
3762                         goto out_free_mem;
3763                 }
3764                 sglq_entry->sli4_lxritag = lxri;
3765                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3766         }
3767         return 0;
3768
3769 out_free_mem:
3770         lpfc_free_els_sgl_list(phba);
3771         return rc;
3772 }
3773
3774 /**
3775  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3776  * @phba: pointer to lpfc hba data structure.
3777  *
3778  * This routine first calculates the sizes of the current els and allocated
3779  * scsi sgl lists, and then goes through all sgls to updates the physical
3780  * XRIs assigned due to port function reset. During port initialization, the
3781  * current els and allocated scsi sgl lists are 0s.
3782  *
3783  * Return codes
3784  *   0 - successful (for now, it always returns 0)
3785  **/
3786 int
3787 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3788 {
3789         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3790         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3791         uint16_t nvmet_xri_cnt;
3792         LIST_HEAD(nvmet_sgl_list);
3793         int rc;
3794
3795         /*
3796          * update on pci function's nvmet xri-sgl list
3797          */
3798         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3799
3800         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3801         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3802         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3803                 /* els xri-sgl expanded */
3804                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3805                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3806                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3807                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3808                 /* allocate the additional nvmet sgls */
3809                 for (i = 0; i < xri_cnt; i++) {
3810                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3811                                              GFP_KERNEL);
3812                         if (sglq_entry == NULL) {
3813                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3814                                                 "6303 Failure to allocate an "
3815                                                 "NVMET sgl entry:%d\n", i);
3816                                 rc = -ENOMEM;
3817                                 goto out_free_mem;
3818                         }
3819                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3820                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3821                                                            &sglq_entry->phys);
3822                         if (sglq_entry->virt == NULL) {
3823                                 kfree(sglq_entry);
3824                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3825                                                 "6304 Failure to allocate an "
3826                                                 "NVMET buf:%d\n", i);
3827                                 rc = -ENOMEM;
3828                                 goto out_free_mem;
3829                         }
3830                         sglq_entry->sgl = sglq_entry->virt;
3831                         memset(sglq_entry->sgl, 0,
3832                                phba->cfg_sg_dma_buf_size);
3833                         sglq_entry->state = SGL_FREED;
3834                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3835                 }
3836                 spin_lock_irq(&phba->hbalock);
3837                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3838                 list_splice_init(&nvmet_sgl_list,
3839                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3840                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3841                 spin_unlock_irq(&phba->hbalock);
3842         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3843                 /* nvmet xri-sgl shrunk */
3844                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3845                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3846                                 "6305 NVMET xri-sgl count decreased from "
3847                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3848                                 nvmet_xri_cnt);
3849                 spin_lock_irq(&phba->hbalock);
3850                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3851                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3852                                  &nvmet_sgl_list);
3853                 /* release extra nvmet sgls from list */
3854                 for (i = 0; i < xri_cnt; i++) {
3855                         list_remove_head(&nvmet_sgl_list,
3856                                          sglq_entry, struct lpfc_sglq, list);
3857                         if (sglq_entry) {
3858                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3859                                                     sglq_entry->phys);
3860                                 kfree(sglq_entry);
3861                         }
3862                 }
3863                 list_splice_init(&nvmet_sgl_list,
3864                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3865                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3866                 spin_unlock_irq(&phba->hbalock);
3867         } else
3868                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3869                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3870                                 nvmet_xri_cnt);
3871         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3872
3873         /* update xris to nvmet sgls on the list */
3874         sglq_entry = NULL;
3875         sglq_entry_next = NULL;
3876         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3877                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3878                 lxri = lpfc_sli4_next_xritag(phba);
3879                 if (lxri == NO_XRI) {
3880                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3881                                         "6307 Failed to allocate xri for "
3882                                         "NVMET sgl\n");
3883                         rc = -ENOMEM;
3884                         goto out_free_mem;
3885                 }
3886                 sglq_entry->sli4_lxritag = lxri;
3887                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3888         }
3889         return 0;
3890
3891 out_free_mem:
3892         lpfc_free_nvmet_sgl_list(phba);
3893         return rc;
3894 }
3895
3896 int
3897 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
3898 {
3899         LIST_HEAD(blist);
3900         struct lpfc_sli4_hdw_queue *qp;
3901         struct lpfc_io_buf *lpfc_cmd;
3902         struct lpfc_io_buf *iobufp, *prev_iobufp;
3903         int idx, cnt, xri, inserted;
3904
3905         cnt = 0;
3906         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3907                 qp = &phba->sli4_hba.hdwq[idx];
3908                 spin_lock_irq(&qp->io_buf_list_get_lock);
3909                 spin_lock(&qp->io_buf_list_put_lock);
3910
3911                 /* Take everything off the get and put lists */
3912                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
3913                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
3914                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
3915                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
3916                 cnt += qp->get_io_bufs + qp->put_io_bufs;
3917                 qp->get_io_bufs = 0;
3918                 qp->put_io_bufs = 0;
3919                 qp->total_io_bufs = 0;
3920                 spin_unlock(&qp->io_buf_list_put_lock);
3921                 spin_unlock_irq(&qp->io_buf_list_get_lock);
3922         }
3923
3924         /*
3925          * Take IO buffers off blist and put on cbuf sorted by XRI.
3926          * This is because POST_SGL takes a sequential range of XRIs
3927          * to post to the firmware.
3928          */
3929         for (idx = 0; idx < cnt; idx++) {
3930                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
3931                 if (!lpfc_cmd)
3932                         return cnt;
3933                 if (idx == 0) {
3934                         list_add_tail(&lpfc_cmd->list, cbuf);
3935                         continue;
3936                 }
3937                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
3938                 inserted = 0;
3939                 prev_iobufp = NULL;
3940                 list_for_each_entry(iobufp, cbuf, list) {
3941                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
3942                                 if (prev_iobufp)
3943                                         list_add(&lpfc_cmd->list,
3944                                                  &prev_iobufp->list);
3945                                 else
3946                                         list_add(&lpfc_cmd->list, cbuf);
3947                                 inserted = 1;
3948                                 break;
3949                         }
3950                         prev_iobufp = iobufp;
3951                 }
3952                 if (!inserted)
3953                         list_add_tail(&lpfc_cmd->list, cbuf);
3954         }
3955         return cnt;
3956 }
3957
3958 int
3959 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
3960 {
3961         struct lpfc_sli4_hdw_queue *qp;
3962         struct lpfc_io_buf *lpfc_cmd;
3963         int idx, cnt;
3964
3965         qp = phba->sli4_hba.hdwq;
3966         cnt = 0;
3967         while (!list_empty(cbuf)) {
3968                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3969                         list_remove_head(cbuf, lpfc_cmd,
3970                                          struct lpfc_io_buf, list);
3971                         if (!lpfc_cmd)
3972                                 return cnt;
3973                         cnt++;
3974                         qp = &phba->sli4_hba.hdwq[idx];
3975                         lpfc_cmd->hdwq_no = idx;
3976                         lpfc_cmd->hdwq = qp;
3977                         lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
3978                         lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
3979                         spin_lock(&qp->io_buf_list_put_lock);
3980                         list_add_tail(&lpfc_cmd->list,
3981                                       &qp->lpfc_io_buf_list_put);
3982                         qp->put_io_bufs++;
3983                         qp->total_io_bufs++;
3984                         spin_unlock(&qp->io_buf_list_put_lock);
3985                 }
3986         }
3987         return cnt;
3988 }
3989
3990 /**
3991  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
3992  * @phba: pointer to lpfc hba data structure.
3993  *
3994  * This routine first calculates the sizes of the current els and allocated
3995  * scsi sgl lists, and then goes through all sgls to updates the physical
3996  * XRIs assigned due to port function reset. During port initialization, the
3997  * current els and allocated scsi sgl lists are 0s.
3998  *
3999  * Return codes
4000  *   0 - successful (for now, it always returns 0)
4001  **/
4002 int
4003 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4004 {
4005         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4006         uint16_t i, lxri, els_xri_cnt;
4007         uint16_t io_xri_cnt, io_xri_max;
4008         LIST_HEAD(io_sgl_list);
4009         int rc, cnt;
4010
4011         /*
4012          * update on pci function's allocated nvme xri-sgl list
4013          */
4014
4015         /* maximum number of xris available for nvme buffers */
4016         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4017         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4018         phba->sli4_hba.io_xri_max = io_xri_max;
4019
4020         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4021                         "6074 Current allocated XRI sgl count:%d, "
4022                         "maximum XRI count:%d\n",
4023                         phba->sli4_hba.io_xri_cnt,
4024                         phba->sli4_hba.io_xri_max);
4025
4026         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4027
4028         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4029                 /* max nvme xri shrunk below the allocated nvme buffers */
4030                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4031                                         phba->sli4_hba.io_xri_max;
4032                 /* release the extra allocated nvme buffers */
4033                 for (i = 0; i < io_xri_cnt; i++) {
4034                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4035                                          struct lpfc_io_buf, list);
4036                         if (lpfc_ncmd) {
4037                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4038                                               lpfc_ncmd->data,
4039                                               lpfc_ncmd->dma_handle);
4040                                 kfree(lpfc_ncmd);
4041                         }
4042                 }
4043                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4044         }
4045
4046         /* update xris associated to remaining allocated nvme buffers */
4047         lpfc_ncmd = NULL;
4048         lpfc_ncmd_next = NULL;
4049         phba->sli4_hba.io_xri_cnt = cnt;
4050         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4051                                  &io_sgl_list, list) {
4052                 lxri = lpfc_sli4_next_xritag(phba);
4053                 if (lxri == NO_XRI) {
4054                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4055                                         "6075 Failed to allocate xri for "
4056                                         "nvme buffer\n");
4057                         rc = -ENOMEM;
4058                         goto out_free_mem;
4059                 }
4060                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4061                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4062         }
4063         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4064         return 0;
4065
4066 out_free_mem:
4067         lpfc_io_free(phba);
4068         return rc;
4069 }
4070
4071 /**
4072  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4073  * @vport: The virtual port for which this call being executed.
4074  * @num_to_allocate: The requested number of buffers to allocate.
4075  *
4076  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4077  * the nvme buffer contains all the necessary information needed to initiate
4078  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4079  * them on a list, it post them to the port by using SGL block post.
4080  *
4081  * Return codes:
4082  *   int - number of IO buffers that were allocated and posted.
4083  *   0 = failure, less than num_to_alloc is a partial failure.
4084  **/
4085 int
4086 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4087 {
4088         struct lpfc_io_buf *lpfc_ncmd;
4089         struct lpfc_iocbq *pwqeq;
4090         uint16_t iotag, lxri = 0;
4091         int bcnt, num_posted;
4092         LIST_HEAD(prep_nblist);
4093         LIST_HEAD(post_nblist);
4094         LIST_HEAD(nvme_nblist);
4095
4096         phba->sli4_hba.io_xri_cnt = 0;
4097         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4098                 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4099                 if (!lpfc_ncmd)
4100                         break;
4101                 /*
4102                  * Get memory from the pci pool to map the virt space to
4103                  * pci bus space for an I/O. The DMA buffer includes the
4104                  * number of SGE's necessary to support the sg_tablesize.
4105                  */
4106                 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4107                                                   GFP_KERNEL,
4108                                                   &lpfc_ncmd->dma_handle);
4109                 if (!lpfc_ncmd->data) {
4110                         kfree(lpfc_ncmd);
4111                         break;
4112                 }
4113
4114                 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4115                         INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4116                 } else {
4117                         /*
4118                          * 4K Page alignment is CRITICAL to BlockGuard, double
4119                          * check to be sure.
4120                          */
4121                         if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4122                             (((unsigned long)(lpfc_ncmd->data) &
4123                             (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4124                                 lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
4125                                                 "3369 Memory alignment err: "
4126                                                 "addr=%lx\n",
4127                                                 (unsigned long)lpfc_ncmd->data);
4128                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4129                                               lpfc_ncmd->data,
4130                                               lpfc_ncmd->dma_handle);
4131                                 kfree(lpfc_ncmd);
4132                                 break;
4133                         }
4134                 }
4135
4136                 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4137
4138                 lxri = lpfc_sli4_next_xritag(phba);
4139                 if (lxri == NO_XRI) {
4140                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4141                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4142                         kfree(lpfc_ncmd);
4143                         break;
4144                 }
4145                 pwqeq = &lpfc_ncmd->cur_iocbq;
4146
4147                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4148                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4149                 if (iotag == 0) {
4150                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4151                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4152                         kfree(lpfc_ncmd);
4153                         lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
4154                                         "6121 Failed to allocate IOTAG for"
4155                                         " XRI:0x%x\n", lxri);
4156                         lpfc_sli4_free_xri(phba, lxri);
4157                         break;
4158                 }
4159                 pwqeq->sli4_lxritag = lxri;
4160                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4161                 pwqeq->context1 = lpfc_ncmd;
4162
4163                 /* Initialize local short-hand pointers. */
4164                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4165                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4166                 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4167                 spin_lock_init(&lpfc_ncmd->buf_lock);
4168
4169                 /* add the nvme buffer to a post list */
4170                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4171                 phba->sli4_hba.io_xri_cnt++;
4172         }
4173         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4174                         "6114 Allocate %d out of %d requested new NVME "
4175                         "buffers\n", bcnt, num_to_alloc);
4176
4177         /* post the list of nvme buffer sgls to port if available */
4178         if (!list_empty(&post_nblist))
4179                 num_posted = lpfc_sli4_post_io_sgl_list(
4180                                 phba, &post_nblist, bcnt);
4181         else
4182                 num_posted = 0;
4183
4184         return num_posted;
4185 }
4186
4187 static uint64_t
4188 lpfc_get_wwpn(struct lpfc_hba *phba)
4189 {
4190         uint64_t wwn;
4191         int rc;
4192         LPFC_MBOXQ_t *mboxq;
4193         MAILBOX_t *mb;
4194
4195         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4196                                                 GFP_KERNEL);
4197         if (!mboxq)
4198                 return (uint64_t)-1;
4199
4200         /* First get WWN of HBA instance */
4201         lpfc_read_nv(phba, mboxq);
4202         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4203         if (rc != MBX_SUCCESS) {
4204                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4205                                 "6019 Mailbox failed , mbxCmd x%x "
4206                                 "READ_NV, mbxStatus x%x\n",
4207                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4208                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4209                 mempool_free(mboxq, phba->mbox_mem_pool);
4210                 return (uint64_t) -1;
4211         }
4212         mb = &mboxq->u.mb;
4213         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4214         /* wwn is WWPN of HBA instance */
4215         mempool_free(mboxq, phba->mbox_mem_pool);
4216         if (phba->sli_rev == LPFC_SLI_REV4)
4217                 return be64_to_cpu(wwn);
4218         else
4219                 return rol64(wwn, 32);
4220 }
4221
4222 /**
4223  * lpfc_create_port - Create an FC port
4224  * @phba: pointer to lpfc hba data structure.
4225  * @instance: a unique integer ID to this FC port.
4226  * @dev: pointer to the device data structure.
4227  *
4228  * This routine creates a FC port for the upper layer protocol. The FC port
4229  * can be created on top of either a physical port or a virtual port provided
4230  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4231  * and associates the FC port created before adding the shost into the SCSI
4232  * layer.
4233  *
4234  * Return codes
4235  *   @vport - pointer to the virtual N_Port data structure.
4236  *   NULL - port create failed.
4237  **/
4238 struct lpfc_vport *
4239 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4240 {
4241         struct lpfc_vport *vport;
4242         struct Scsi_Host  *shost = NULL;
4243         int error = 0;
4244         int i;
4245         uint64_t wwn;
4246         bool use_no_reset_hba = false;
4247         int rc;
4248
4249         if (lpfc_no_hba_reset_cnt) {
4250                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4251                     dev == &phba->pcidev->dev) {
4252                         /* Reset the port first */
4253                         lpfc_sli_brdrestart(phba);
4254                         rc = lpfc_sli_chipset_init(phba);
4255                         if (rc)
4256                                 return NULL;
4257                 }
4258                 wwn = lpfc_get_wwpn(phba);
4259         }
4260
4261         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4262                 if (wwn == lpfc_no_hba_reset[i]) {
4263                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4264                                         "6020 Setting use_no_reset port=%llx\n",
4265                                         wwn);
4266                         use_no_reset_hba = true;
4267                         break;
4268                 }
4269         }
4270
4271         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4272                 if (dev != &phba->pcidev->dev) {
4273                         shost = scsi_host_alloc(&lpfc_vport_template,
4274                                                 sizeof(struct lpfc_vport));
4275                 } else {
4276                         if (!use_no_reset_hba)
4277                                 shost = scsi_host_alloc(&lpfc_template,
4278                                                 sizeof(struct lpfc_vport));
4279                         else
4280                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
4281                                                 sizeof(struct lpfc_vport));
4282                 }
4283         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
4284                 shost = scsi_host_alloc(&lpfc_template_nvme,
4285                                         sizeof(struct lpfc_vport));
4286         }
4287         if (!shost)
4288                 goto out;
4289
4290         vport = (struct lpfc_vport *) shost->hostdata;
4291         vport->phba = phba;
4292         vport->load_flag |= FC_LOADING;
4293         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4294         vport->fc_rscn_flush = 0;
4295         lpfc_get_vport_cfgparam(vport);
4296
4297         /* Adjust value in vport */
4298         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4299
4300         shost->unique_id = instance;
4301         shost->max_id = LPFC_MAX_TARGET;
4302         shost->max_lun = vport->cfg_max_luns;
4303         shost->this_id = -1;
4304         shost->max_cmd_len = 16;
4305
4306         if (phba->sli_rev == LPFC_SLI_REV4) {
4307                 if (!phba->cfg_fcp_mq_threshold ||
4308                     phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4309                         phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4310
4311                 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4312                                             phba->cfg_fcp_mq_threshold);
4313
4314                 shost->dma_boundary =
4315                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4316
4317                 if (phba->cfg_xpsgl && !phba->nvmet_support)
4318                         shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4319                 else
4320                         shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4321         } else
4322                 /* SLI-3 has a limited number of hardware queues (3),
4323                  * thus there is only one for FCP processing.
4324                  */
4325                 shost->nr_hw_queues = 1;
4326
4327         /*
4328          * Set initial can_queue value since 0 is no longer supported and
4329          * scsi_add_host will fail. This will be adjusted later based on the
4330          * max xri value determined in hba setup.
4331          */
4332         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4333         if (dev != &phba->pcidev->dev) {
4334                 shost->transportt = lpfc_vport_transport_template;
4335                 vport->port_type = LPFC_NPIV_PORT;
4336         } else {
4337                 shost->transportt = lpfc_transport_template;
4338                 vport->port_type = LPFC_PHYSICAL_PORT;
4339         }
4340
4341         /* Initialize all internally managed lists. */
4342         INIT_LIST_HEAD(&vport->fc_nodes);
4343         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4344         spin_lock_init(&vport->work_port_lock);
4345
4346         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4347
4348         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4349
4350         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4351
4352         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4353                 lpfc_setup_bg(phba, shost);
4354
4355         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4356         if (error)
4357                 goto out_put_shost;
4358
4359         spin_lock_irq(&phba->port_list_lock);
4360         list_add_tail(&vport->listentry, &phba->port_list);
4361         spin_unlock_irq(&phba->port_list_lock);
4362         return vport;
4363
4364 out_put_shost:
4365         scsi_host_put(shost);
4366 out:
4367         return NULL;
4368 }
4369
4370 /**
4371  * destroy_port -  destroy an FC port
4372  * @vport: pointer to an lpfc virtual N_Port data structure.
4373  *
4374  * This routine destroys a FC port from the upper layer protocol. All the
4375  * resources associated with the port are released.
4376  **/
4377 void
4378 destroy_port(struct lpfc_vport *vport)
4379 {
4380         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4381         struct lpfc_hba  *phba = vport->phba;
4382
4383         lpfc_debugfs_terminate(vport);
4384         fc_remove_host(shost);
4385         scsi_remove_host(shost);
4386
4387         spin_lock_irq(&phba->port_list_lock);
4388         list_del_init(&vport->listentry);
4389         spin_unlock_irq(&phba->port_list_lock);
4390
4391         lpfc_cleanup(vport);
4392         return;
4393 }
4394
4395 /**
4396  * lpfc_get_instance - Get a unique integer ID
4397  *
4398  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4399  * uses the kernel idr facility to perform the task.
4400  *
4401  * Return codes:
4402  *   instance - a unique integer ID allocated as the new instance.
4403  *   -1 - lpfc get instance failed.
4404  **/
4405 int
4406 lpfc_get_instance(void)
4407 {
4408         int ret;
4409
4410         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4411         return ret < 0 ? -1 : ret;
4412 }
4413
4414 /**
4415  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4416  * @shost: pointer to SCSI host data structure.
4417  * @time: elapsed time of the scan in jiffies.
4418  *
4419  * This routine is called by the SCSI layer with a SCSI host to determine
4420  * whether the scan host is finished.
4421  *
4422  * Note: there is no scan_start function as adapter initialization will have
4423  * asynchronously kicked off the link initialization.
4424  *
4425  * Return codes
4426  *   0 - SCSI host scan is not over yet.
4427  *   1 - SCSI host scan is over.
4428  **/
4429 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4430 {
4431         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4432         struct lpfc_hba   *phba = vport->phba;
4433         int stat = 0;
4434
4435         spin_lock_irq(shost->host_lock);
4436
4437         if (vport->load_flag & FC_UNLOADING) {
4438                 stat = 1;
4439                 goto finished;
4440         }
4441         if (time >= msecs_to_jiffies(30 * 1000)) {
4442                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4443                                 "0461 Scanning longer than 30 "
4444                                 "seconds.  Continuing initialization\n");
4445                 stat = 1;
4446                 goto finished;
4447         }
4448         if (time >= msecs_to_jiffies(15 * 1000) &&
4449             phba->link_state <= LPFC_LINK_DOWN) {
4450                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4451                                 "0465 Link down longer than 15 "
4452                                 "seconds.  Continuing initialization\n");
4453                 stat = 1;
4454                 goto finished;
4455         }
4456
4457         if (vport->port_state != LPFC_VPORT_READY)
4458                 goto finished;
4459         if (vport->num_disc_nodes || vport->fc_prli_sent)
4460                 goto finished;
4461         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4462                 goto finished;
4463         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4464                 goto finished;
4465
4466         stat = 1;
4467
4468 finished:
4469         spin_unlock_irq(shost->host_lock);
4470         return stat;
4471 }
4472
4473 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4474 {
4475         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4476         struct lpfc_hba   *phba = vport->phba;
4477
4478         fc_host_supported_speeds(shost) = 0;
4479         if (phba->lmt & LMT_128Gb)
4480                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4481         if (phba->lmt & LMT_64Gb)
4482                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4483         if (phba->lmt & LMT_32Gb)
4484                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4485         if (phba->lmt & LMT_16Gb)
4486                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4487         if (phba->lmt & LMT_10Gb)
4488                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4489         if (phba->lmt & LMT_8Gb)
4490                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4491         if (phba->lmt & LMT_4Gb)
4492                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4493         if (phba->lmt & LMT_2Gb)
4494                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4495         if (phba->lmt & LMT_1Gb)
4496                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4497 }
4498
4499 /**
4500  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4501  * @shost: pointer to SCSI host data structure.
4502  *
4503  * This routine initializes a given SCSI host attributes on a FC port. The
4504  * SCSI host can be either on top of a physical port or a virtual port.
4505  **/
4506 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4507 {
4508         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4509         struct lpfc_hba   *phba = vport->phba;
4510         /*
4511          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4512          */
4513
4514         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4515         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4516         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4517
4518         memset(fc_host_supported_fc4s(shost), 0,
4519                sizeof(fc_host_supported_fc4s(shost)));
4520         fc_host_supported_fc4s(shost)[2] = 1;
4521         fc_host_supported_fc4s(shost)[7] = 1;
4522
4523         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4524                                  sizeof fc_host_symbolic_name(shost));
4525
4526         lpfc_host_supported_speeds_set(shost);
4527
4528         fc_host_maxframe_size(shost) =
4529                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4530                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4531
4532         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4533
4534         /* This value is also unchanging */
4535         memset(fc_host_active_fc4s(shost), 0,
4536                sizeof(fc_host_active_fc4s(shost)));
4537         fc_host_active_fc4s(shost)[2] = 1;
4538         fc_host_active_fc4s(shost)[7] = 1;
4539
4540         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4541         spin_lock_irq(shost->host_lock);
4542         vport->load_flag &= ~FC_LOADING;
4543         spin_unlock_irq(shost->host_lock);
4544 }
4545
4546 /**
4547  * lpfc_stop_port_s3 - Stop SLI3 device port
4548  * @phba: pointer to lpfc hba data structure.
4549  *
4550  * This routine is invoked to stop an SLI3 device port, it stops the device
4551  * from generating interrupts and stops the device driver's timers for the
4552  * device.
4553  **/
4554 static void
4555 lpfc_stop_port_s3(struct lpfc_hba *phba)
4556 {
4557         /* Clear all interrupt enable conditions */
4558         writel(0, phba->HCregaddr);
4559         readl(phba->HCregaddr); /* flush */
4560         /* Clear all pending interrupts */
4561         writel(0xffffffff, phba->HAregaddr);
4562         readl(phba->HAregaddr); /* flush */
4563
4564         /* Reset some HBA SLI setup states */
4565         lpfc_stop_hba_timers(phba);
4566         phba->pport->work_port_events = 0;
4567 }
4568
4569 /**
4570  * lpfc_stop_port_s4 - Stop SLI4 device port
4571  * @phba: pointer to lpfc hba data structure.
4572  *
4573  * This routine is invoked to stop an SLI4 device port, it stops the device
4574  * from generating interrupts and stops the device driver's timers for the
4575  * device.
4576  **/
4577 static void
4578 lpfc_stop_port_s4(struct lpfc_hba *phba)
4579 {
4580         /* Reset some HBA SLI4 setup states */
4581         lpfc_stop_hba_timers(phba);
4582         if (phba->pport)
4583                 phba->pport->work_port_events = 0;
4584         phba->sli4_hba.intr_enable = 0;
4585 }
4586
4587 /**
4588  * lpfc_stop_port - Wrapper function for stopping hba port
4589  * @phba: Pointer to HBA context object.
4590  *
4591  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4592  * the API jump table function pointer from the lpfc_hba struct.
4593  **/
4594 void
4595 lpfc_stop_port(struct lpfc_hba *phba)
4596 {
4597         phba->lpfc_stop_port(phba);
4598
4599         if (phba->wq)
4600                 flush_workqueue(phba->wq);
4601 }
4602
4603 /**
4604  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4605  * @phba: Pointer to hba for which this call is being executed.
4606  *
4607  * This routine starts the timer waiting for the FCF rediscovery to complete.
4608  **/
4609 void
4610 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4611 {
4612         unsigned long fcf_redisc_wait_tmo =
4613                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4614         /* Start fcf rediscovery wait period timer */
4615         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4616         spin_lock_irq(&phba->hbalock);
4617         /* Allow action to new fcf asynchronous event */
4618         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4619         /* Mark the FCF rediscovery pending state */
4620         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4621         spin_unlock_irq(&phba->hbalock);
4622 }
4623
4624 /**
4625  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4626  * @ptr: Map to lpfc_hba data structure pointer.
4627  *
4628  * This routine is invoked when waiting for FCF table rediscover has been
4629  * timed out. If new FCF record(s) has (have) been discovered during the
4630  * wait period, a new FCF event shall be added to the FCOE async event
4631  * list, and then worker thread shall be waked up for processing from the
4632  * worker thread context.
4633  **/
4634 static void
4635 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4636 {
4637         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4638
4639         /* Don't send FCF rediscovery event if timer cancelled */
4640         spin_lock_irq(&phba->hbalock);
4641         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4642                 spin_unlock_irq(&phba->hbalock);
4643                 return;
4644         }
4645         /* Clear FCF rediscovery timer pending flag */
4646         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4647         /* FCF rediscovery event to worker thread */
4648         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4649         spin_unlock_irq(&phba->hbalock);
4650         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4651                         "2776 FCF rediscover quiescent timer expired\n");
4652         /* wake up worker thread */
4653         lpfc_worker_wake_up(phba);
4654 }
4655
4656 /**
4657  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4658  * @phba: pointer to lpfc hba data structure.
4659  * @acqe_link: pointer to the async link completion queue entry.
4660  *
4661  * This routine is to parse the SLI4 link-attention link fault code.
4662  **/
4663 static void
4664 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4665                            struct lpfc_acqe_link *acqe_link)
4666 {
4667         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4668         case LPFC_ASYNC_LINK_FAULT_NONE:
4669         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4670         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4671         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4672                 break;
4673         default:
4674                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4675                                 "0398 Unknown link fault code: x%x\n",
4676                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4677                 break;
4678         }
4679 }
4680
4681 /**
4682  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4683  * @phba: pointer to lpfc hba data structure.
4684  * @acqe_link: pointer to the async link completion queue entry.
4685  *
4686  * This routine is to parse the SLI4 link attention type and translate it
4687  * into the base driver's link attention type coding.
4688  *
4689  * Return: Link attention type in terms of base driver's coding.
4690  **/
4691 static uint8_t
4692 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4693                           struct lpfc_acqe_link *acqe_link)
4694 {
4695         uint8_t att_type;
4696
4697         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4698         case LPFC_ASYNC_LINK_STATUS_DOWN:
4699         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4700                 att_type = LPFC_ATT_LINK_DOWN;
4701                 break;
4702         case LPFC_ASYNC_LINK_STATUS_UP:
4703                 /* Ignore physical link up events - wait for logical link up */
4704                 att_type = LPFC_ATT_RESERVED;
4705                 break;
4706         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4707                 att_type = LPFC_ATT_LINK_UP;
4708                 break;
4709         default:
4710                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4711                                 "0399 Invalid link attention type: x%x\n",
4712                                 bf_get(lpfc_acqe_link_status, acqe_link));
4713                 att_type = LPFC_ATT_RESERVED;
4714                 break;
4715         }
4716         return att_type;
4717 }
4718
4719 /**
4720  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4721  * @phba: pointer to lpfc hba data structure.
4722  *
4723  * This routine is to get an SLI3 FC port's link speed in Mbps.
4724  *
4725  * Return: link speed in terms of Mbps.
4726  **/
4727 uint32_t
4728 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4729 {
4730         uint32_t link_speed;
4731
4732         if (!lpfc_is_link_up(phba))
4733                 return 0;
4734
4735         if (phba->sli_rev <= LPFC_SLI_REV3) {
4736                 switch (phba->fc_linkspeed) {
4737                 case LPFC_LINK_SPEED_1GHZ:
4738                         link_speed = 1000;
4739                         break;
4740                 case LPFC_LINK_SPEED_2GHZ:
4741                         link_speed = 2000;
4742                         break;
4743                 case LPFC_LINK_SPEED_4GHZ:
4744                         link_speed = 4000;
4745                         break;
4746                 case LPFC_LINK_SPEED_8GHZ:
4747                         link_speed = 8000;
4748                         break;
4749                 case LPFC_LINK_SPEED_10GHZ:
4750                         link_speed = 10000;
4751                         break;
4752                 case LPFC_LINK_SPEED_16GHZ:
4753                         link_speed = 16000;
4754                         break;
4755                 default:
4756                         link_speed = 0;
4757                 }
4758         } else {
4759                 if (phba->sli4_hba.link_state.logical_speed)
4760                         link_speed =
4761                               phba->sli4_hba.link_state.logical_speed;
4762                 else
4763                         link_speed = phba->sli4_hba.link_state.speed;
4764         }
4765         return link_speed;
4766 }
4767
4768 /**
4769  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4770  * @phba: pointer to lpfc hba data structure.
4771  * @evt_code: asynchronous event code.
4772  * @speed_code: asynchronous event link speed code.
4773  *
4774  * This routine is to parse the giving SLI4 async event link speed code into
4775  * value of Mbps for the link speed.
4776  *
4777  * Return: link speed in terms of Mbps.
4778  **/
4779 static uint32_t
4780 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4781                            uint8_t speed_code)
4782 {
4783         uint32_t port_speed;
4784
4785         switch (evt_code) {
4786         case LPFC_TRAILER_CODE_LINK:
4787                 switch (speed_code) {
4788                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4789                         port_speed = 0;
4790                         break;
4791                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4792                         port_speed = 10;
4793                         break;
4794                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4795                         port_speed = 100;
4796                         break;
4797                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4798                         port_speed = 1000;
4799                         break;
4800                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4801                         port_speed = 10000;
4802                         break;
4803                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4804                         port_speed = 20000;
4805                         break;
4806                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4807                         port_speed = 25000;
4808                         break;
4809                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4810                         port_speed = 40000;
4811                         break;
4812                 default:
4813                         port_speed = 0;
4814                 }
4815                 break;
4816         case LPFC_TRAILER_CODE_FC:
4817                 switch (speed_code) {
4818                 case LPFC_FC_LA_SPEED_UNKNOWN:
4819                         port_speed = 0;
4820                         break;
4821                 case LPFC_FC_LA_SPEED_1G:
4822                         port_speed = 1000;
4823                         break;
4824                 case LPFC_FC_LA_SPEED_2G:
4825                         port_speed = 2000;
4826                         break;
4827                 case LPFC_FC_LA_SPEED_4G:
4828                         port_speed = 4000;
4829                         break;
4830                 case LPFC_FC_LA_SPEED_8G:
4831                         port_speed = 8000;
4832                         break;
4833                 case LPFC_FC_LA_SPEED_10G:
4834                         port_speed = 10000;
4835                         break;
4836                 case LPFC_FC_LA_SPEED_16G:
4837                         port_speed = 16000;
4838                         break;
4839                 case LPFC_FC_LA_SPEED_32G:
4840                         port_speed = 32000;
4841                         break;
4842                 case LPFC_FC_LA_SPEED_64G:
4843                         port_speed = 64000;
4844                         break;
4845                 case LPFC_FC_LA_SPEED_128G:
4846                         port_speed = 128000;
4847                         break;
4848                 default:
4849                         port_speed = 0;
4850                 }
4851                 break;
4852         default:
4853                 port_speed = 0;
4854         }
4855         return port_speed;
4856 }
4857
4858 /**
4859  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4860  * @phba: pointer to lpfc hba data structure.
4861  * @acqe_link: pointer to the async link completion queue entry.
4862  *
4863  * This routine is to handle the SLI4 asynchronous FCoE link event.
4864  **/
4865 static void
4866 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4867                          struct lpfc_acqe_link *acqe_link)
4868 {
4869         struct lpfc_dmabuf *mp;
4870         LPFC_MBOXQ_t *pmb;
4871         MAILBOX_t *mb;
4872         struct lpfc_mbx_read_top *la;
4873         uint8_t att_type;
4874         int rc;
4875
4876         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4877         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4878                 return;
4879         phba->fcoe_eventtag = acqe_link->event_tag;
4880         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4881         if (!pmb) {
4882                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4883                                 "0395 The mboxq allocation failed\n");
4884                 return;
4885         }
4886         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4887         if (!mp) {
4888                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4889                                 "0396 The lpfc_dmabuf allocation failed\n");
4890                 goto out_free_pmb;
4891         }
4892         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4893         if (!mp->virt) {
4894                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4895                                 "0397 The mbuf allocation failed\n");
4896                 goto out_free_dmabuf;
4897         }
4898
4899         /* Cleanup any outstanding ELS commands */
4900         lpfc_els_flush_all_cmd(phba);
4901
4902         /* Block ELS IOCBs until we have done process link event */
4903         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4904
4905         /* Update link event statistics */
4906         phba->sli.slistat.link_event++;
4907
4908         /* Create lpfc_handle_latt mailbox command from link ACQE */
4909         lpfc_read_topology(phba, pmb, mp);
4910         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4911         pmb->vport = phba->pport;
4912
4913         /* Keep the link status for extra SLI4 state machine reference */
4914         phba->sli4_hba.link_state.speed =
4915                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4916                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4917         phba->sli4_hba.link_state.duplex =
4918                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4919         phba->sli4_hba.link_state.status =
4920                                 bf_get(lpfc_acqe_link_status, acqe_link);
4921         phba->sli4_hba.link_state.type =
4922                                 bf_get(lpfc_acqe_link_type, acqe_link);
4923         phba->sli4_hba.link_state.number =
4924                                 bf_get(lpfc_acqe_link_number, acqe_link);
4925         phba->sli4_hba.link_state.fault =
4926                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4927         phba->sli4_hba.link_state.logical_speed =
4928                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4929
4930         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4931                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4932                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4933                         "Logical speed:%dMbps Fault:%d\n",
4934                         phba->sli4_hba.link_state.speed,
4935                         phba->sli4_hba.link_state.topology,
4936                         phba->sli4_hba.link_state.status,
4937                         phba->sli4_hba.link_state.type,
4938                         phba->sli4_hba.link_state.number,
4939                         phba->sli4_hba.link_state.logical_speed,
4940                         phba->sli4_hba.link_state.fault);
4941         /*
4942          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4943          * topology info. Note: Optional for non FC-AL ports.
4944          */
4945         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4946                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4947                 if (rc == MBX_NOT_FINISHED)
4948                         goto out_free_dmabuf;
4949                 return;
4950         }
4951         /*
4952          * For FCoE Mode: fill in all the topology information we need and call
4953          * the READ_TOPOLOGY completion routine to continue without actually
4954          * sending the READ_TOPOLOGY mailbox command to the port.
4955          */
4956         /* Initialize completion status */
4957         mb = &pmb->u.mb;
4958         mb->mbxStatus = MBX_SUCCESS;
4959
4960         /* Parse port fault information field */
4961         lpfc_sli4_parse_latt_fault(phba, acqe_link);
4962
4963         /* Parse and translate link attention fields */
4964         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4965         la->eventTag = acqe_link->event_tag;
4966         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4967         bf_set(lpfc_mbx_read_top_link_spd, la,
4968                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4969
4970         /* Fake the the following irrelvant fields */
4971         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4972         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4973         bf_set(lpfc_mbx_read_top_il, la, 0);
4974         bf_set(lpfc_mbx_read_top_pb, la, 0);
4975         bf_set(lpfc_mbx_read_top_fa, la, 0);
4976         bf_set(lpfc_mbx_read_top_mm, la, 0);
4977
4978         /* Invoke the lpfc_handle_latt mailbox command callback function */
4979         lpfc_mbx_cmpl_read_topology(phba, pmb);
4980
4981         return;
4982
4983 out_free_dmabuf:
4984         kfree(mp);
4985 out_free_pmb:
4986         mempool_free(pmb, phba->mbox_mem_pool);
4987 }
4988
4989 /**
4990  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
4991  * topology.
4992  * @phba: pointer to lpfc hba data structure.
4993  * @evt_code: asynchronous event code.
4994  * @speed_code: asynchronous event link speed code.
4995  *
4996  * This routine is to parse the giving SLI4 async event link speed code into
4997  * value of Read topology link speed.
4998  *
4999  * Return: link speed in terms of Read topology.
5000  **/
5001 static uint8_t
5002 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5003 {
5004         uint8_t port_speed;
5005
5006         switch (speed_code) {
5007         case LPFC_FC_LA_SPEED_1G:
5008                 port_speed = LPFC_LINK_SPEED_1GHZ;
5009                 break;
5010         case LPFC_FC_LA_SPEED_2G:
5011                 port_speed = LPFC_LINK_SPEED_2GHZ;
5012                 break;
5013         case LPFC_FC_LA_SPEED_4G:
5014                 port_speed = LPFC_LINK_SPEED_4GHZ;
5015                 break;
5016         case LPFC_FC_LA_SPEED_8G:
5017                 port_speed = LPFC_LINK_SPEED_8GHZ;
5018                 break;
5019         case LPFC_FC_LA_SPEED_16G:
5020                 port_speed = LPFC_LINK_SPEED_16GHZ;
5021                 break;
5022         case LPFC_FC_LA_SPEED_32G:
5023                 port_speed = LPFC_LINK_SPEED_32GHZ;
5024                 break;
5025         case LPFC_FC_LA_SPEED_64G:
5026                 port_speed = LPFC_LINK_SPEED_64GHZ;
5027                 break;
5028         case LPFC_FC_LA_SPEED_128G:
5029                 port_speed = LPFC_LINK_SPEED_128GHZ;
5030                 break;
5031         case LPFC_FC_LA_SPEED_256G:
5032                 port_speed = LPFC_LINK_SPEED_256GHZ;
5033                 break;
5034         default:
5035                 port_speed = 0;
5036                 break;
5037         }
5038
5039         return port_speed;
5040 }
5041
5042 #define trunk_link_status(__idx)\
5043         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5044                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
5045                 "Link up" : "Link down") : "NA"
5046 /* Did port __idx reported an error */
5047 #define trunk_port_fault(__idx)\
5048         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5049                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
5050
5051 static void
5052 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
5053                               struct lpfc_acqe_fc_la *acqe_fc)
5054 {
5055         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
5056         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
5057
5058         phba->sli4_hba.link_state.speed =
5059                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5060                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5061
5062         phba->sli4_hba.link_state.logical_speed =
5063                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5064         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
5065         phba->fc_linkspeed =
5066                  lpfc_async_link_speed_to_read_top(
5067                                 phba,
5068                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5069
5070         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
5071                 phba->trunk_link.link0.state =
5072                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
5073                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5074                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
5075         }
5076         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
5077                 phba->trunk_link.link1.state =
5078                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
5079                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5080                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
5081         }
5082         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
5083                 phba->trunk_link.link2.state =
5084                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
5085                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5086                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
5087         }
5088         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
5089                 phba->trunk_link.link3.state =
5090                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
5091                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5092                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
5093         }
5094
5095         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5096                         "2910 Async FC Trunking Event - Speed:%d\n"
5097                         "\tLogical speed:%d "
5098                         "port0: %s port1: %s port2: %s port3: %s\n",
5099                         phba->sli4_hba.link_state.speed,
5100                         phba->sli4_hba.link_state.logical_speed,
5101                         trunk_link_status(0), trunk_link_status(1),
5102                         trunk_link_status(2), trunk_link_status(3));
5103
5104         if (port_fault)
5105                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5106                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
5107                                 /*
5108                                  * SLI-4: We have only 0xA error codes
5109                                  * defined as of now. print an appropriate
5110                                  * message in case driver needs to be updated.
5111                                  */
5112                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
5113                                 "UNDEFINED. update driver." : trunk_errmsg[err],
5114                                 trunk_port_fault(0), trunk_port_fault(1),
5115                                 trunk_port_fault(2), trunk_port_fault(3));
5116 }
5117
5118
5119 /**
5120  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
5121  * @phba: pointer to lpfc hba data structure.
5122  * @acqe_fc: pointer to the async fc completion queue entry.
5123  *
5124  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
5125  * that the event was received and then issue a read_topology mailbox command so
5126  * that the rest of the driver will treat it the same as SLI3.
5127  **/
5128 static void
5129 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
5130 {
5131         struct lpfc_dmabuf *mp;
5132         LPFC_MBOXQ_t *pmb;
5133         MAILBOX_t *mb;
5134         struct lpfc_mbx_read_top *la;
5135         int rc;
5136
5137         if (bf_get(lpfc_trailer_type, acqe_fc) !=
5138             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
5139                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5140                                 "2895 Non FC link Event detected.(%d)\n",
5141                                 bf_get(lpfc_trailer_type, acqe_fc));
5142                 return;
5143         }
5144
5145         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5146             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
5147                 lpfc_update_trunk_link_status(phba, acqe_fc);
5148                 return;
5149         }
5150
5151         /* Keep the link status for extra SLI4 state machine reference */
5152         phba->sli4_hba.link_state.speed =
5153                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5154                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5155         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
5156         phba->sli4_hba.link_state.topology =
5157                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
5158         phba->sli4_hba.link_state.status =
5159                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
5160         phba->sli4_hba.link_state.type =
5161                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
5162         phba->sli4_hba.link_state.number =
5163                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
5164         phba->sli4_hba.link_state.fault =
5165                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
5166
5167         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5168             LPFC_FC_LA_TYPE_LINK_DOWN)
5169                 phba->sli4_hba.link_state.logical_speed = 0;
5170         else if (!phba->sli4_hba.conf_trunk)
5171                 phba->sli4_hba.link_state.logical_speed =
5172                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5173
5174         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5175                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
5176                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
5177                         "%dMbps Fault:%d\n",
5178                         phba->sli4_hba.link_state.speed,
5179                         phba->sli4_hba.link_state.topology,
5180                         phba->sli4_hba.link_state.status,
5181                         phba->sli4_hba.link_state.type,
5182                         phba->sli4_hba.link_state.number,
5183                         phba->sli4_hba.link_state.logical_speed,
5184                         phba->sli4_hba.link_state.fault);
5185         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5186         if (!pmb) {
5187                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5188                                 "2897 The mboxq allocation failed\n");
5189                 return;
5190         }
5191         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5192         if (!mp) {
5193                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5194                                 "2898 The lpfc_dmabuf allocation failed\n");
5195                 goto out_free_pmb;
5196         }
5197         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5198         if (!mp->virt) {
5199                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5200                                 "2899 The mbuf allocation failed\n");
5201                 goto out_free_dmabuf;
5202         }
5203
5204         /* Cleanup any outstanding ELS commands */
5205         lpfc_els_flush_all_cmd(phba);
5206
5207         /* Block ELS IOCBs until we have done process link event */
5208         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5209
5210         /* Update link event statistics */
5211         phba->sli.slistat.link_event++;
5212
5213         /* Create lpfc_handle_latt mailbox command from link ACQE */
5214         lpfc_read_topology(phba, pmb, mp);
5215         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5216         pmb->vport = phba->pport;
5217
5218         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
5219                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
5220
5221                 switch (phba->sli4_hba.link_state.status) {
5222                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
5223                         phba->link_flag |= LS_MDS_LINK_DOWN;
5224                         break;
5225                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
5226                         phba->link_flag |= LS_MDS_LOOPBACK;
5227                         break;
5228                 default:
5229                         break;
5230                 }
5231
5232                 /* Initialize completion status */
5233                 mb = &pmb->u.mb;
5234                 mb->mbxStatus = MBX_SUCCESS;
5235
5236                 /* Parse port fault information field */
5237                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
5238
5239                 /* Parse and translate link attention fields */
5240                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
5241                 la->eventTag = acqe_fc->event_tag;
5242
5243                 if (phba->sli4_hba.link_state.status ==
5244                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
5245                         bf_set(lpfc_mbx_read_top_att_type, la,
5246                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
5247                 } else {
5248                         bf_set(lpfc_mbx_read_top_att_type, la,
5249                                LPFC_FC_LA_TYPE_LINK_DOWN);
5250                 }
5251                 /* Invoke the mailbox command callback function */
5252                 lpfc_mbx_cmpl_read_topology(phba, pmb);
5253
5254                 return;
5255         }
5256
5257         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5258         if (rc == MBX_NOT_FINISHED)
5259                 goto out_free_dmabuf;
5260         return;
5261
5262 out_free_dmabuf:
5263         kfree(mp);
5264 out_free_pmb:
5265         mempool_free(pmb, phba->mbox_mem_pool);
5266 }
5267
5268 /**
5269  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
5270  * @phba: pointer to lpfc hba data structure.
5271  * @acqe_fc: pointer to the async SLI completion queue entry.
5272  *
5273  * This routine is to handle the SLI4 asynchronous SLI events.
5274  **/
5275 static void
5276 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
5277 {
5278         char port_name;
5279         char message[128];
5280         uint8_t status;
5281         uint8_t evt_type;
5282         uint8_t operational = 0;
5283         struct temp_event temp_event_data;
5284         struct lpfc_acqe_misconfigured_event *misconfigured;
5285         struct Scsi_Host  *shost;
5286         struct lpfc_vport **vports;
5287         int rc, i;
5288
5289         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
5290
5291         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5292                         "2901 Async SLI event - Type:%d, Event Data: x%08x "
5293                         "x%08x x%08x x%08x\n", evt_type,
5294                         acqe_sli->event_data1, acqe_sli->event_data2,
5295                         acqe_sli->reserved, acqe_sli->trailer);
5296
5297         port_name = phba->Port[0];
5298         if (port_name == 0x00)
5299                 port_name = '?'; /* get port name is empty */
5300
5301         switch (evt_type) {
5302         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
5303                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5304                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
5305                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5306
5307                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5308                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
5309                                 acqe_sli->event_data1, port_name);
5310
5311                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
5312                 shost = lpfc_shost_from_vport(phba->pport);
5313                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5314                                           sizeof(temp_event_data),
5315                                           (char *)&temp_event_data,
5316                                           SCSI_NL_VID_TYPE_PCI
5317                                           | PCI_VENDOR_ID_EMULEX);
5318                 break;
5319         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
5320                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5321                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
5322                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5323
5324                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5325                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
5326                                 acqe_sli->event_data1, port_name);
5327
5328                 shost = lpfc_shost_from_vport(phba->pport);
5329                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5330                                           sizeof(temp_event_data),
5331                                           (char *)&temp_event_data,
5332                                           SCSI_NL_VID_TYPE_PCI
5333                                           | PCI_VENDOR_ID_EMULEX);
5334                 break;
5335         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
5336                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
5337                                         &acqe_sli->event_data1;
5338
5339                 /* fetch the status for this port */
5340                 switch (phba->sli4_hba.lnk_info.lnk_no) {
5341                 case LPFC_LINK_NUMBER_0:
5342                         status = bf_get(lpfc_sli_misconfigured_port0_state,
5343                                         &misconfigured->theEvent);
5344                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
5345                                         &misconfigured->theEvent);
5346                         break;
5347                 case LPFC_LINK_NUMBER_1:
5348                         status = bf_get(lpfc_sli_misconfigured_port1_state,
5349                                         &misconfigured->theEvent);
5350                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
5351                                         &misconfigured->theEvent);
5352                         break;
5353                 case LPFC_LINK_NUMBER_2:
5354                         status = bf_get(lpfc_sli_misconfigured_port2_state,
5355                                         &misconfigured->theEvent);
5356                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
5357                                         &misconfigured->theEvent);
5358                         break;
5359                 case LPFC_LINK_NUMBER_3:
5360                         status = bf_get(lpfc_sli_misconfigured_port3_state,
5361                                         &misconfigured->theEvent);
5362                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
5363                                         &misconfigured->theEvent);
5364                         break;
5365                 default:
5366                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5367                                         "3296 "
5368                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5369                                         "event: Invalid link %d",
5370                                         phba->sli4_hba.lnk_info.lnk_no);
5371                         return;
5372                 }
5373
5374                 /* Skip if optic state unchanged */
5375                 if (phba->sli4_hba.lnk_info.optic_state == status)
5376                         return;
5377
5378                 switch (status) {
5379                 case LPFC_SLI_EVENT_STATUS_VALID:
5380                         sprintf(message, "Physical Link is functional");
5381                         break;
5382                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5383                         sprintf(message, "Optics faulted/incorrectly "
5384                                 "installed/not installed - Reseat optics, "
5385                                 "if issue not resolved, replace.");
5386                         break;
5387                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5388                         sprintf(message,
5389                                 "Optics of two types installed - Remove one "
5390                                 "optic or install matching pair of optics.");
5391                         break;
5392                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5393                         sprintf(message, "Incompatible optics - Replace with "
5394                                 "compatible optics for card to function.");
5395                         break;
5396                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5397                         sprintf(message, "Unqualified optics - Replace with "
5398                                 "Avago optics for Warranty and Technical "
5399                                 "Support - Link is%s operational",
5400                                 (operational) ? " not" : "");
5401                         break;
5402                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5403                         sprintf(message, "Uncertified optics - Replace with "
5404                                 "Avago-certified optics to enable link "
5405                                 "operation - Link is%s operational",
5406                                 (operational) ? " not" : "");
5407                         break;
5408                 default:
5409                         /* firmware is reporting a status we don't know about */
5410                         sprintf(message, "Unknown event status x%02x", status);
5411                         break;
5412                 }
5413
5414                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
5415                 rc = lpfc_sli4_read_config(phba);
5416                 if (rc) {
5417                         phba->lmt = 0;
5418                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5419                                         "3194 Unable to retrieve supported "
5420                                         "speeds, rc = 0x%x\n", rc);
5421                 }
5422                 vports = lpfc_create_vport_work_array(phba);
5423                 if (vports != NULL) {
5424                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5425                                         i++) {
5426                                 shost = lpfc_shost_from_vport(vports[i]);
5427                                 lpfc_host_supported_speeds_set(shost);
5428                         }
5429                 }
5430                 lpfc_destroy_vport_work_array(phba, vports);
5431
5432                 phba->sli4_hba.lnk_info.optic_state = status;
5433                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5434                                 "3176 Port Name %c %s\n", port_name, message);
5435                 break;
5436         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5437                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5438                                 "3192 Remote DPort Test Initiated - "
5439                                 "Event Data1:x%08x Event Data2: x%08x\n",
5440                                 acqe_sli->event_data1, acqe_sli->event_data2);
5441                 break;
5442         case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
5443                 /* Misconfigured WWN. Reports that the SLI Port is configured
5444                  * to use FA-WWN, but the attached device doesn’t support it.
5445                  * No driver action is required.
5446                  * Event Data1 - N.A, Event Data2 - N.A
5447                  */
5448                 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
5449                              "2699 Misconfigured FA-WWN - Attached device does "
5450                              "not support FA-WWN\n");
5451                 break;
5452         case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
5453                 /* EEPROM failure. No driver action is required */
5454                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5455                              "2518 EEPROM failure - "
5456                              "Event Data1: x%08x Event Data2: x%08x\n",
5457                              acqe_sli->event_data1, acqe_sli->event_data2);
5458                 break;
5459         default:
5460                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5461                                 "3193 Unrecognized SLI event, type: 0x%x",
5462                                 evt_type);
5463                 break;
5464         }
5465 }
5466
5467 /**
5468  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5469  * @vport: pointer to vport data structure.
5470  *
5471  * This routine is to perform Clear Virtual Link (CVL) on a vport in
5472  * response to a CVL event.
5473  *
5474  * Return the pointer to the ndlp with the vport if successful, otherwise
5475  * return NULL.
5476  **/
5477 static struct lpfc_nodelist *
5478 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5479 {
5480         struct lpfc_nodelist *ndlp;
5481         struct Scsi_Host *shost;
5482         struct lpfc_hba *phba;
5483
5484         if (!vport)
5485                 return NULL;
5486         phba = vport->phba;
5487         if (!phba)
5488                 return NULL;
5489         ndlp = lpfc_findnode_did(vport, Fabric_DID);
5490         if (!ndlp) {
5491                 /* Cannot find existing Fabric ndlp, so allocate a new one */
5492                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
5493                 if (!ndlp)
5494                         return 0;
5495                 /* Set the node type */
5496                 ndlp->nlp_type |= NLP_FABRIC;
5497                 /* Put ndlp onto node list */
5498                 lpfc_enqueue_node(vport, ndlp);
5499         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5500                 /* re-setup ndlp without removing from node list */
5501                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
5502                 if (!ndlp)
5503                         return 0;
5504         }
5505         if ((phba->pport->port_state < LPFC_FLOGI) &&
5506                 (phba->pport->port_state != LPFC_VPORT_FAILED))
5507                 return NULL;
5508         /* If virtual link is not yet instantiated ignore CVL */
5509         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5510                 && (vport->port_state != LPFC_VPORT_FAILED))
5511                 return NULL;
5512         shost = lpfc_shost_from_vport(vport);
5513         if (!shost)
5514                 return NULL;
5515         lpfc_linkdown_port(vport);
5516         lpfc_cleanup_pending_mbox(vport);
5517         spin_lock_irq(shost->host_lock);
5518         vport->fc_flag |= FC_VPORT_CVL_RCVD;
5519         spin_unlock_irq(shost->host_lock);
5520
5521         return ndlp;
5522 }
5523
5524 /**
5525  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5526  * @vport: pointer to lpfc hba data structure.
5527  *
5528  * This routine is to perform Clear Virtual Link (CVL) on all vports in
5529  * response to a FCF dead event.
5530  **/
5531 static void
5532 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5533 {
5534         struct lpfc_vport **vports;
5535         int i;
5536
5537         vports = lpfc_create_vport_work_array(phba);
5538         if (vports)
5539                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5540                         lpfc_sli4_perform_vport_cvl(vports[i]);
5541         lpfc_destroy_vport_work_array(phba, vports);
5542 }
5543
5544 /**
5545  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5546  * @phba: pointer to lpfc hba data structure.
5547  * @acqe_link: pointer to the async fcoe completion queue entry.
5548  *
5549  * This routine is to handle the SLI4 asynchronous fcoe event.
5550  **/
5551 static void
5552 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5553                         struct lpfc_acqe_fip *acqe_fip)
5554 {
5555         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5556         int rc;
5557         struct lpfc_vport *vport;
5558         struct lpfc_nodelist *ndlp;
5559         struct Scsi_Host  *shost;
5560         int active_vlink_present;
5561         struct lpfc_vport **vports;
5562         int i;
5563
5564         phba->fc_eventTag = acqe_fip->event_tag;
5565         phba->fcoe_eventtag = acqe_fip->event_tag;
5566         switch (event_type) {
5567         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5568         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5569                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5570                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5571                                         LOG_DISCOVERY,
5572                                         "2546 New FCF event, evt_tag:x%x, "
5573                                         "index:x%x\n",
5574                                         acqe_fip->event_tag,
5575                                         acqe_fip->index);
5576                 else
5577                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5578                                         LOG_DISCOVERY,
5579                                         "2788 FCF param modified event, "
5580                                         "evt_tag:x%x, index:x%x\n",
5581                                         acqe_fip->event_tag,
5582                                         acqe_fip->index);
5583                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5584                         /*
5585                          * During period of FCF discovery, read the FCF
5586                          * table record indexed by the event to update
5587                          * FCF roundrobin failover eligible FCF bmask.
5588                          */
5589                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5590                                         LOG_DISCOVERY,
5591                                         "2779 Read FCF (x%x) for updating "
5592                                         "roundrobin FCF failover bmask\n",
5593                                         acqe_fip->index);
5594                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5595                 }
5596
5597                 /* If the FCF discovery is in progress, do nothing. */
5598                 spin_lock_irq(&phba->hbalock);
5599                 if (phba->hba_flag & FCF_TS_INPROG) {
5600                         spin_unlock_irq(&phba->hbalock);
5601                         break;
5602                 }
5603                 /* If fast FCF failover rescan event is pending, do nothing */
5604                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5605                         spin_unlock_irq(&phba->hbalock);
5606                         break;
5607                 }
5608
5609                 /* If the FCF has been in discovered state, do nothing. */
5610                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5611                         spin_unlock_irq(&phba->hbalock);
5612                         break;
5613                 }
5614                 spin_unlock_irq(&phba->hbalock);
5615
5616                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5617                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5618                                 "2770 Start FCF table scan per async FCF "
5619                                 "event, evt_tag:x%x, index:x%x\n",
5620                                 acqe_fip->event_tag, acqe_fip->index);
5621                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5622                                                      LPFC_FCOE_FCF_GET_FIRST);
5623                 if (rc)
5624                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5625                                         "2547 Issue FCF scan read FCF mailbox "
5626                                         "command failed (x%x)\n", rc);
5627                 break;
5628
5629         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5630                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5631                         "2548 FCF Table full count 0x%x tag 0x%x\n",
5632                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5633                         acqe_fip->event_tag);
5634                 break;
5635
5636         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5637                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5638                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5639                         "2549 FCF (x%x) disconnected from network, "
5640                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5641                 /*
5642                  * If we are in the middle of FCF failover process, clear
5643                  * the corresponding FCF bit in the roundrobin bitmap.
5644                  */
5645                 spin_lock_irq(&phba->hbalock);
5646                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5647                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5648                         spin_unlock_irq(&phba->hbalock);
5649                         /* Update FLOGI FCF failover eligible FCF bmask */
5650                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5651                         break;
5652                 }
5653                 spin_unlock_irq(&phba->hbalock);
5654
5655                 /* If the event is not for currently used fcf do nothing */
5656                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5657                         break;
5658
5659                 /*
5660                  * Otherwise, request the port to rediscover the entire FCF
5661                  * table for a fast recovery from case that the current FCF
5662                  * is no longer valid as we are not in the middle of FCF
5663                  * failover process already.
5664                  */
5665                 spin_lock_irq(&phba->hbalock);
5666                 /* Mark the fast failover process in progress */
5667                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5668                 spin_unlock_irq(&phba->hbalock);
5669
5670                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5671                                 "2771 Start FCF fast failover process due to "
5672                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5673                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5674                 rc = lpfc_sli4_redisc_fcf_table(phba);
5675                 if (rc) {
5676                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5677                                         LOG_DISCOVERY,
5678                                         "2772 Issue FCF rediscover mailbox "
5679                                         "command failed, fail through to FCF "
5680                                         "dead event\n");
5681                         spin_lock_irq(&phba->hbalock);
5682                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5683                         spin_unlock_irq(&phba->hbalock);
5684                         /*
5685                          * Last resort will fail over by treating this
5686                          * as a link down to FCF registration.
5687                          */
5688                         lpfc_sli4_fcf_dead_failthrough(phba);
5689                 } else {
5690                         /* Reset FCF roundrobin bmask for new discovery */
5691                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5692                         /*
5693                          * Handling fast FCF failover to a DEAD FCF event is
5694                          * considered equalivant to receiving CVL to all vports.
5695                          */
5696                         lpfc_sli4_perform_all_vport_cvl(phba);
5697                 }
5698                 break;
5699         case LPFC_FIP_EVENT_TYPE_CVL:
5700                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5701                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5702                         "2718 Clear Virtual Link Received for VPI 0x%x"
5703                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5704
5705                 vport = lpfc_find_vport_by_vpid(phba,
5706                                                 acqe_fip->index);
5707                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5708                 if (!ndlp)
5709                         break;
5710                 active_vlink_present = 0;
5711
5712                 vports = lpfc_create_vport_work_array(phba);
5713                 if (vports) {
5714                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5715                                         i++) {
5716                                 if ((!(vports[i]->fc_flag &
5717                                         FC_VPORT_CVL_RCVD)) &&
5718                                         (vports[i]->port_state > LPFC_FDISC)) {
5719                                         active_vlink_present = 1;
5720                                         break;
5721                                 }
5722                         }
5723                         lpfc_destroy_vport_work_array(phba, vports);
5724                 }
5725
5726                 /*
5727                  * Don't re-instantiate if vport is marked for deletion.
5728                  * If we are here first then vport_delete is going to wait
5729                  * for discovery to complete.
5730                  */
5731                 if (!(vport->load_flag & FC_UNLOADING) &&
5732                                         active_vlink_present) {
5733                         /*
5734                          * If there are other active VLinks present,
5735                          * re-instantiate the Vlink using FDISC.
5736                          */
5737                         mod_timer(&ndlp->nlp_delayfunc,
5738                                   jiffies + msecs_to_jiffies(1000));
5739                         shost = lpfc_shost_from_vport(vport);
5740                         spin_lock_irq(shost->host_lock);
5741                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5742                         spin_unlock_irq(shost->host_lock);
5743                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5744                         vport->port_state = LPFC_FDISC;
5745                 } else {
5746                         /*
5747                          * Otherwise, we request port to rediscover
5748                          * the entire FCF table for a fast recovery
5749                          * from possible case that the current FCF
5750                          * is no longer valid if we are not already
5751                          * in the FCF failover process.
5752                          */
5753                         spin_lock_irq(&phba->hbalock);
5754                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5755                                 spin_unlock_irq(&phba->hbalock);
5756                                 break;
5757                         }
5758                         /* Mark the fast failover process in progress */
5759                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5760                         spin_unlock_irq(&phba->hbalock);
5761                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5762                                         LOG_DISCOVERY,
5763                                         "2773 Start FCF failover per CVL, "
5764                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5765                         rc = lpfc_sli4_redisc_fcf_table(phba);
5766                         if (rc) {
5767                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5768                                                 LOG_DISCOVERY,
5769                                                 "2774 Issue FCF rediscover "
5770                                                 "mailbox command failed, "
5771                                                 "through to CVL event\n");
5772                                 spin_lock_irq(&phba->hbalock);
5773                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5774                                 spin_unlock_irq(&phba->hbalock);
5775                                 /*
5776                                  * Last resort will be re-try on the
5777                                  * the current registered FCF entry.
5778                                  */
5779                                 lpfc_retry_pport_discovery(phba);
5780                         } else
5781                                 /*
5782                                  * Reset FCF roundrobin bmask for new
5783                                  * discovery.
5784                                  */
5785                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5786                 }
5787                 break;
5788         default:
5789                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5790                         "0288 Unknown FCoE event type 0x%x event tag "
5791                         "0x%x\n", event_type, acqe_fip->event_tag);
5792                 break;
5793         }
5794 }
5795
5796 /**
5797  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5798  * @phba: pointer to lpfc hba data structure.
5799  * @acqe_link: pointer to the async dcbx completion queue entry.
5800  *
5801  * This routine is to handle the SLI4 asynchronous dcbx event.
5802  **/
5803 static void
5804 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5805                          struct lpfc_acqe_dcbx *acqe_dcbx)
5806 {
5807         phba->fc_eventTag = acqe_dcbx->event_tag;
5808         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5809                         "0290 The SLI4 DCBX asynchronous event is not "
5810                         "handled yet\n");
5811 }
5812
5813 /**
5814  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5815  * @phba: pointer to lpfc hba data structure.
5816  * @acqe_link: pointer to the async grp5 completion queue entry.
5817  *
5818  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5819  * is an asynchronous notified of a logical link speed change.  The Port
5820  * reports the logical link speed in units of 10Mbps.
5821  **/
5822 static void
5823 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5824                          struct lpfc_acqe_grp5 *acqe_grp5)
5825 {
5826         uint16_t prev_ll_spd;
5827
5828         phba->fc_eventTag = acqe_grp5->event_tag;
5829         phba->fcoe_eventtag = acqe_grp5->event_tag;
5830         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5831         phba->sli4_hba.link_state.logical_speed =
5832                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5833         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5834                         "2789 GRP5 Async Event: Updating logical link speed "
5835                         "from %dMbps to %dMbps\n", prev_ll_spd,
5836                         phba->sli4_hba.link_state.logical_speed);
5837 }
5838
5839 /**
5840  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5841  * @phba: pointer to lpfc hba data structure.
5842  *
5843  * This routine is invoked by the worker thread to process all the pending
5844  * SLI4 asynchronous events.
5845  **/
5846 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5847 {
5848         struct lpfc_cq_event *cq_event;
5849
5850         /* First, declare the async event has been handled */
5851         spin_lock_irq(&phba->hbalock);
5852         phba->hba_flag &= ~ASYNC_EVENT;
5853         spin_unlock_irq(&phba->hbalock);
5854         /* Now, handle all the async events */
5855         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5856                 /* Get the first event from the head of the event queue */
5857                 spin_lock_irq(&phba->hbalock);
5858                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5859                                  cq_event, struct lpfc_cq_event, list);
5860                 spin_unlock_irq(&phba->hbalock);
5861                 /* Process the asynchronous event */
5862                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5863                 case LPFC_TRAILER_CODE_LINK:
5864                         lpfc_sli4_async_link_evt(phba,
5865                                                  &cq_event->cqe.acqe_link);
5866                         break;
5867                 case LPFC_TRAILER_CODE_FCOE:
5868                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5869                         break;
5870                 case LPFC_TRAILER_CODE_DCBX:
5871                         lpfc_sli4_async_dcbx_evt(phba,
5872                                                  &cq_event->cqe.acqe_dcbx);
5873                         break;
5874                 case LPFC_TRAILER_CODE_GRP5:
5875                         lpfc_sli4_async_grp5_evt(phba,
5876                                                  &cq_event->cqe.acqe_grp5);
5877                         break;
5878                 case LPFC_TRAILER_CODE_FC:
5879                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5880                         break;
5881                 case LPFC_TRAILER_CODE_SLI:
5882                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5883                         break;
5884                 default:
5885                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5886                                         "1804 Invalid asynchronous event code: "
5887                                         "x%x\n", bf_get(lpfc_trailer_code,
5888                                         &cq_event->cqe.mcqe_cmpl));
5889                         break;
5890                 }
5891                 /* Free the completion event processed to the free pool */
5892                 lpfc_sli4_cq_event_release(phba, cq_event);
5893         }
5894 }
5895
5896 /**
5897  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5898  * @phba: pointer to lpfc hba data structure.
5899  *
5900  * This routine is invoked by the worker thread to process FCF table
5901  * rediscovery pending completion event.
5902  **/
5903 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5904 {
5905         int rc;
5906
5907         spin_lock_irq(&phba->hbalock);
5908         /* Clear FCF rediscovery timeout event */
5909         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5910         /* Clear driver fast failover FCF record flag */
5911         phba->fcf.failover_rec.flag = 0;
5912         /* Set state for FCF fast failover */
5913         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5914         spin_unlock_irq(&phba->hbalock);
5915
5916         /* Scan FCF table from the first entry to re-discover SAN */
5917         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5918                         "2777 Start post-quiescent FCF table scan\n");
5919         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5920         if (rc)
5921                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5922                                 "2747 Issue FCF scan read FCF mailbox "
5923                                 "command failed 0x%x\n", rc);
5924 }
5925
5926 /**
5927  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5928  * @phba: pointer to lpfc hba data structure.
5929  * @dev_grp: The HBA PCI-Device group number.
5930  *
5931  * This routine is invoked to set up the per HBA PCI-Device group function
5932  * API jump table entries.
5933  *
5934  * Return: 0 if success, otherwise -ENODEV
5935  **/
5936 int
5937 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5938 {
5939         int rc;
5940
5941         /* Set up lpfc PCI-device group */
5942         phba->pci_dev_grp = dev_grp;
5943
5944         /* The LPFC_PCI_DEV_OC uses SLI4 */
5945         if (dev_grp == LPFC_PCI_DEV_OC)
5946                 phba->sli_rev = LPFC_SLI_REV4;
5947
5948         /* Set up device INIT API function jump table */
5949         rc = lpfc_init_api_table_setup(phba, dev_grp);
5950         if (rc)
5951                 return -ENODEV;
5952         /* Set up SCSI API function jump table */
5953         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5954         if (rc)
5955                 return -ENODEV;
5956         /* Set up SLI API function jump table */
5957         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5958         if (rc)
5959                 return -ENODEV;
5960         /* Set up MBOX API function jump table */
5961         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5962         if (rc)
5963                 return -ENODEV;
5964
5965         return 0;
5966 }
5967
5968 /**
5969  * lpfc_log_intr_mode - Log the active interrupt mode
5970  * @phba: pointer to lpfc hba data structure.
5971  * @intr_mode: active interrupt mode adopted.
5972  *
5973  * This routine it invoked to log the currently used active interrupt mode
5974  * to the device.
5975  **/
5976 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5977 {
5978         switch (intr_mode) {
5979         case 0:
5980                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5981                                 "0470 Enable INTx interrupt mode.\n");
5982                 break;
5983         case 1:
5984                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5985                                 "0481 Enabled MSI interrupt mode.\n");
5986                 break;
5987         case 2:
5988                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5989                                 "0480 Enabled MSI-X interrupt mode.\n");
5990                 break;
5991         default:
5992                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5993                                 "0482 Illegal interrupt mode.\n");
5994                 break;
5995         }
5996         return;
5997 }
5998
5999 /**
6000  * lpfc_cpumask_of_node_init - initalizes cpumask of phba's NUMA node
6001  * @phba: Pointer to HBA context object.
6002  *
6003  **/
6004 static void
6005 lpfc_cpumask_of_node_init(struct lpfc_hba *phba)
6006 {
6007         unsigned int cpu, numa_node;
6008         struct cpumask *numa_mask = &phba->sli4_hba.numa_mask;
6009
6010         cpumask_clear(numa_mask);
6011
6012         /* Check if we're a NUMA architecture */
6013         numa_node = dev_to_node(&phba->pcidev->dev);
6014         if (numa_node == NUMA_NO_NODE)
6015                 return;
6016
6017         for_each_possible_cpu(cpu)
6018                 if (cpu_to_node(cpu) == numa_node)
6019                         cpumask_set_cpu(cpu, numa_mask);
6020 }
6021
6022 /**
6023  * lpfc_enable_pci_dev - Enable a generic PCI device.
6024  * @phba: pointer to lpfc hba data structure.
6025  *
6026  * This routine is invoked to enable the PCI device that is common to all
6027  * PCI devices.
6028  *
6029  * Return codes
6030  *      0 - successful
6031  *      other values - error
6032  **/
6033 static int
6034 lpfc_enable_pci_dev(struct lpfc_hba *phba)
6035 {
6036         struct pci_dev *pdev;
6037
6038         /* Obtain PCI device reference */
6039         if (!phba->pcidev)
6040                 goto out_error;
6041         else
6042                 pdev = phba->pcidev;
6043         /* Enable PCI device */
6044         if (pci_enable_device_mem(pdev))
6045                 goto out_error;
6046         /* Request PCI resource for the device */
6047         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
6048                 goto out_disable_device;
6049         /* Set up device as PCI master and save state for EEH */
6050         pci_set_master(pdev);
6051         pci_try_set_mwi(pdev);
6052         pci_save_state(pdev);
6053
6054         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
6055         if (pci_is_pcie(pdev))
6056                 pdev->needs_freset = 1;
6057
6058         return 0;
6059
6060 out_disable_device:
6061         pci_disable_device(pdev);
6062 out_error:
6063         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6064                         "1401 Failed to enable pci device\n");
6065         return -ENODEV;
6066 }
6067
6068 /**
6069  * lpfc_disable_pci_dev - Disable a generic PCI device.
6070  * @phba: pointer to lpfc hba data structure.
6071  *
6072  * This routine is invoked to disable the PCI device that is common to all
6073  * PCI devices.
6074  **/
6075 static void
6076 lpfc_disable_pci_dev(struct lpfc_hba *phba)
6077 {
6078         struct pci_dev *pdev;
6079
6080         /* Obtain PCI device reference */
6081         if (!phba->pcidev)
6082                 return;
6083         else
6084                 pdev = phba->pcidev;
6085         /* Release PCI resource and disable PCI device */
6086         pci_release_mem_regions(pdev);
6087         pci_disable_device(pdev);
6088
6089         return;
6090 }
6091
6092 /**
6093  * lpfc_reset_hba - Reset a hba
6094  * @phba: pointer to lpfc hba data structure.
6095  *
6096  * This routine is invoked to reset a hba device. It brings the HBA
6097  * offline, performs a board restart, and then brings the board back
6098  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
6099  * on outstanding mailbox commands.
6100  **/
6101 void
6102 lpfc_reset_hba(struct lpfc_hba *phba)
6103 {
6104         /* If resets are disabled then set error state and return. */
6105         if (!phba->cfg_enable_hba_reset) {
6106                 phba->link_state = LPFC_HBA_ERROR;
6107                 return;
6108         }
6109         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
6110                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
6111         else
6112                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
6113         lpfc_offline(phba);
6114         lpfc_sli_brdrestart(phba);
6115         lpfc_online(phba);
6116         lpfc_unblock_mgmt_io(phba);
6117 }
6118
6119 /**
6120  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
6121  * @phba: pointer to lpfc hba data structure.
6122  *
6123  * This function enables the PCI SR-IOV virtual functions to a physical
6124  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6125  * enable the number of virtual functions to the physical function. As
6126  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6127  * API call does not considered as an error condition for most of the device.
6128  **/
6129 uint16_t
6130 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
6131 {
6132         struct pci_dev *pdev = phba->pcidev;
6133         uint16_t nr_virtfn;
6134         int pos;
6135
6136         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
6137         if (pos == 0)
6138                 return 0;
6139
6140         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
6141         return nr_virtfn;
6142 }
6143
6144 /**
6145  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
6146  * @phba: pointer to lpfc hba data structure.
6147  * @nr_vfn: number of virtual functions to be enabled.
6148  *
6149  * This function enables the PCI SR-IOV virtual functions to a physical
6150  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6151  * enable the number of virtual functions to the physical function. As
6152  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6153  * API call does not considered as an error condition for most of the device.
6154  **/
6155 int
6156 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
6157 {
6158         struct pci_dev *pdev = phba->pcidev;
6159         uint16_t max_nr_vfn;
6160         int rc;
6161
6162         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
6163         if (nr_vfn > max_nr_vfn) {
6164                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6165                                 "3057 Requested vfs (%d) greater than "
6166                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
6167                 return -EINVAL;
6168         }
6169
6170         rc = pci_enable_sriov(pdev, nr_vfn);
6171         if (rc) {
6172                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6173                                 "2806 Failed to enable sriov on this device "
6174                                 "with vfn number nr_vf:%d, rc:%d\n",
6175                                 nr_vfn, rc);
6176         } else
6177                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6178                                 "2807 Successful enable sriov on this device "
6179                                 "with vfn number nr_vf:%d\n", nr_vfn);
6180         return rc;
6181 }
6182
6183 /**
6184  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
6185  * @phba: pointer to lpfc hba data structure.
6186  *
6187  * This routine is invoked to set up the driver internal resources before the
6188  * device specific resource setup to support the HBA device it attached to.
6189  *
6190  * Return codes
6191  *      0 - successful
6192  *      other values - error
6193  **/
6194 static int
6195 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
6196 {
6197         struct lpfc_sli *psli = &phba->sli;
6198
6199         /*
6200          * Driver resources common to all SLI revisions
6201          */
6202         atomic_set(&phba->fast_event_count, 0);
6203         spin_lock_init(&phba->hbalock);
6204
6205         /* Initialize ndlp management spinlock */
6206         spin_lock_init(&phba->ndlp_lock);
6207
6208         /* Initialize port_list spinlock */
6209         spin_lock_init(&phba->port_list_lock);
6210         INIT_LIST_HEAD(&phba->port_list);
6211
6212         INIT_LIST_HEAD(&phba->work_list);
6213         init_waitqueue_head(&phba->wait_4_mlo_m_q);
6214
6215         /* Initialize the wait queue head for the kernel thread */
6216         init_waitqueue_head(&phba->work_waitq);
6217
6218         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6219                         "1403 Protocols supported %s %s %s\n",
6220                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
6221                                 "SCSI" : " "),
6222                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
6223                                 "NVME" : " "),
6224                         (phba->nvmet_support ? "NVMET" : " "));
6225
6226         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
6227         spin_lock_init(&phba->scsi_buf_list_get_lock);
6228         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
6229         spin_lock_init(&phba->scsi_buf_list_put_lock);
6230         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
6231
6232         /* Initialize the fabric iocb list */
6233         INIT_LIST_HEAD(&phba->fabric_iocb_list);
6234
6235         /* Initialize list to save ELS buffers */
6236         INIT_LIST_HEAD(&phba->elsbuf);
6237
6238         /* Initialize FCF connection rec list */
6239         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
6240
6241         /* Initialize OAS configuration list */
6242         spin_lock_init(&phba->devicelock);
6243         INIT_LIST_HEAD(&phba->luns);
6244
6245         /* MBOX heartbeat timer */
6246         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
6247         /* Fabric block timer */
6248         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
6249         /* EA polling mode timer */
6250         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
6251         /* Heartbeat timer */
6252         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
6253
6254         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
6255
6256         return 0;
6257 }
6258
6259 /**
6260  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
6261  * @phba: pointer to lpfc hba data structure.
6262  *
6263  * This routine is invoked to set up the driver internal resources specific to
6264  * support the SLI-3 HBA device it attached to.
6265  *
6266  * Return codes
6267  * 0 - successful
6268  * other values - error
6269  **/
6270 static int
6271 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
6272 {
6273         int rc, entry_sz;
6274
6275         /*
6276          * Initialize timers used by driver
6277          */
6278
6279         /* FCP polling mode timer */
6280         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
6281
6282         /* Host attention work mask setup */
6283         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
6284         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
6285
6286         /* Get all the module params for configuring this host */
6287         lpfc_get_cfgparam(phba);
6288         /* Set up phase-1 common device driver resources */
6289
6290         rc = lpfc_setup_driver_resource_phase1(phba);
6291         if (rc)
6292                 return -ENODEV;
6293
6294         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
6295                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
6296                 /* check for menlo minimum sg count */
6297                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
6298                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
6299         }
6300
6301         if (!phba->sli.sli3_ring)
6302                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
6303                                               sizeof(struct lpfc_sli_ring),
6304                                               GFP_KERNEL);
6305         if (!phba->sli.sli3_ring)
6306                 return -ENOMEM;
6307
6308         /*
6309          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
6310          * used to create the sg_dma_buf_pool must be dynamically calculated.
6311          */
6312
6313         /* Initialize the host templates the configured values. */
6314         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6315         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
6316         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6317
6318         if (phba->sli_rev == LPFC_SLI_REV4)
6319                 entry_sz = sizeof(struct sli4_sge);
6320         else
6321                 entry_sz = sizeof(struct ulp_bde64);
6322
6323         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
6324         if (phba->cfg_enable_bg) {
6325                 /*
6326                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
6327                  * the FCP rsp, and a BDE for each. Sice we have no control
6328                  * over how many protection data segments the SCSI Layer
6329                  * will hand us (ie: there could be one for every block
6330                  * in the IO), we just allocate enough BDEs to accomidate
6331                  * our max amount and we need to limit lpfc_sg_seg_cnt to
6332                  * minimize the risk of running out.
6333                  */
6334                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6335                         sizeof(struct fcp_rsp) +
6336                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
6337
6338                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
6339                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
6340
6341                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
6342                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
6343         } else {
6344                 /*
6345                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
6346                  * the FCP rsp, a BDE for each, and a BDE for up to
6347                  * cfg_sg_seg_cnt data segments.
6348                  */
6349                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6350                         sizeof(struct fcp_rsp) +
6351                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
6352
6353                 /* Total BDEs in BPL for scsi_sg_list */
6354                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
6355         }
6356
6357         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6358                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
6359                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6360                         phba->cfg_total_seg_cnt);
6361
6362         phba->max_vpi = LPFC_MAX_VPI;
6363         /* This will be set to correct value after config_port mbox */
6364         phba->max_vports = 0;
6365
6366         /*
6367          * Initialize the SLI Layer to run with lpfc HBAs.
6368          */
6369         lpfc_sli_setup(phba);
6370         lpfc_sli_queue_init(phba);
6371
6372         /* Allocate device driver memory */
6373         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
6374                 return -ENOMEM;
6375
6376         phba->lpfc_sg_dma_buf_pool =
6377                 dma_pool_create("lpfc_sg_dma_buf_pool",
6378                                 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
6379                                 BPL_ALIGN_SZ, 0);
6380
6381         if (!phba->lpfc_sg_dma_buf_pool)
6382                 goto fail_free_mem;
6383
6384         phba->lpfc_cmd_rsp_buf_pool =
6385                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
6386                                         &phba->pcidev->dev,
6387                                         sizeof(struct fcp_cmnd) +
6388                                         sizeof(struct fcp_rsp),
6389                                         BPL_ALIGN_SZ, 0);
6390
6391         if (!phba->lpfc_cmd_rsp_buf_pool)
6392                 goto fail_free_dma_buf_pool;
6393
6394         /*
6395          * Enable sr-iov virtual functions if supported and configured
6396          * through the module parameter.
6397          */
6398         if (phba->cfg_sriov_nr_virtfn > 0) {
6399                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6400                                                  phba->cfg_sriov_nr_virtfn);
6401                 if (rc) {
6402                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6403                                         "2808 Requested number of SR-IOV "
6404                                         "virtual functions (%d) is not "
6405                                         "supported\n",
6406                                         phba->cfg_sriov_nr_virtfn);
6407                         phba->cfg_sriov_nr_virtfn = 0;
6408                 }
6409         }
6410
6411         return 0;
6412
6413 fail_free_dma_buf_pool:
6414         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
6415         phba->lpfc_sg_dma_buf_pool = NULL;
6416 fail_free_mem:
6417         lpfc_mem_free(phba);
6418         return -ENOMEM;
6419 }
6420
6421 /**
6422  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6423  * @phba: pointer to lpfc hba data structure.
6424  *
6425  * This routine is invoked to unset the driver internal resources set up
6426  * specific for supporting the SLI-3 HBA device it attached to.
6427  **/
6428 static void
6429 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6430 {
6431         /* Free device driver memory allocated */
6432         lpfc_mem_free_all(phba);
6433
6434         return;
6435 }
6436
6437 /**
6438  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6439  * @phba: pointer to lpfc hba data structure.
6440  *
6441  * This routine is invoked to set up the driver internal resources specific to
6442  * support the SLI-4 HBA device it attached to.
6443  *
6444  * Return codes
6445  *      0 - successful
6446  *      other values - error
6447  **/
6448 static int
6449 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6450 {
6451         LPFC_MBOXQ_t *mboxq;
6452         MAILBOX_t *mb;
6453         int rc, i, max_buf_size;
6454         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
6455         struct lpfc_mqe *mqe;
6456         int longs;
6457         int extra;
6458         uint64_t wwn;
6459         u32 if_type;
6460         u32 if_fam;
6461
6462         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6463         phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
6464         phba->sli4_hba.curr_disp_cpu = 0;
6465         lpfc_cpumask_of_node_init(phba);
6466
6467         /* Get all the module params for configuring this host */
6468         lpfc_get_cfgparam(phba);
6469
6470         /* Set up phase-1 common device driver resources */
6471         rc = lpfc_setup_driver_resource_phase1(phba);
6472         if (rc)
6473                 return -ENODEV;
6474
6475         /* Before proceed, wait for POST done and device ready */
6476         rc = lpfc_sli4_post_status_check(phba);
6477         if (rc)
6478                 return -ENODEV;
6479
6480         /* Allocate all driver workqueues here */
6481
6482         /* The lpfc_wq workqueue for deferred irq use */
6483         phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6484
6485         /*
6486          * Initialize timers used by driver
6487          */
6488
6489         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6490
6491         /* FCF rediscover timer */
6492         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6493
6494         /*
6495          * Control structure for handling external multi-buffer mailbox
6496          * command pass-through.
6497          */
6498         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6499                 sizeof(struct lpfc_mbox_ext_buf_ctx));
6500         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6501
6502         phba->max_vpi = LPFC_MAX_VPI;
6503
6504         /* This will be set to correct value after the read_config mbox */
6505         phba->max_vports = 0;
6506
6507         /* Program the default value of vlan_id and fc_map */
6508         phba->valid_vlan = 0;
6509         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6510         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6511         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6512
6513         /*
6514          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6515          * we will associate a new ring, for each EQ/CQ/WQ tuple.
6516          * The WQ create will allocate the ring.
6517          */
6518
6519         /* Initialize buffer queue management fields */
6520         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6521         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6522         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6523
6524         /*
6525          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6526          */
6527         /* Initialize the Abort buffer list used by driver */
6528         spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
6529         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
6530
6531         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6532                 /* Initialize the Abort nvme buffer list used by driver */
6533                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
6534                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6535                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6536                 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
6537                 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
6538         }
6539
6540         /* This abort list used by worker thread */
6541         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6542         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6543
6544         /*
6545          * Initialize driver internal slow-path work queues
6546          */
6547
6548         /* Driver internel slow-path CQ Event pool */
6549         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6550         /* Response IOCB work queue list */
6551         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6552         /* Asynchronous event CQ Event work queue list */
6553         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6554         /* Fast-path XRI aborted CQ Event work queue list */
6555         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6556         /* Slow-path XRI aborted CQ Event work queue list */
6557         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6558         /* Receive queue CQ Event work queue list */
6559         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6560
6561         /* Initialize extent block lists. */
6562         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6563         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6564         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6565         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6566
6567         /* Initialize mboxq lists. If the early init routines fail
6568          * these lists need to be correctly initialized.
6569          */
6570         INIT_LIST_HEAD(&phba->sli.mboxq);
6571         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6572
6573         /* initialize optic_state to 0xFF */
6574         phba->sli4_hba.lnk_info.optic_state = 0xff;
6575
6576         /* Allocate device driver memory */
6577         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6578         if (rc)
6579                 return -ENOMEM;
6580
6581         /* IF Type 2 ports get initialized now. */
6582         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6583             LPFC_SLI_INTF_IF_TYPE_2) {
6584                 rc = lpfc_pci_function_reset(phba);
6585                 if (unlikely(rc)) {
6586                         rc = -ENODEV;
6587                         goto out_free_mem;
6588                 }
6589                 phba->temp_sensor_support = 1;
6590         }
6591
6592         /* Create the bootstrap mailbox command */
6593         rc = lpfc_create_bootstrap_mbox(phba);
6594         if (unlikely(rc))
6595                 goto out_free_mem;
6596
6597         /* Set up the host's endian order with the device. */
6598         rc = lpfc_setup_endian_order(phba);
6599         if (unlikely(rc))
6600                 goto out_free_bsmbx;
6601
6602         /* Set up the hba's configuration parameters. */
6603         rc = lpfc_sli4_read_config(phba);
6604         if (unlikely(rc))
6605                 goto out_free_bsmbx;
6606         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6607         if (unlikely(rc))
6608                 goto out_free_bsmbx;
6609
6610         /* IF Type 0 ports get initialized now. */
6611         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6612             LPFC_SLI_INTF_IF_TYPE_0) {
6613                 rc = lpfc_pci_function_reset(phba);
6614                 if (unlikely(rc))
6615                         goto out_free_bsmbx;
6616         }
6617
6618         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6619                                                        GFP_KERNEL);
6620         if (!mboxq) {
6621                 rc = -ENOMEM;
6622                 goto out_free_bsmbx;
6623         }
6624
6625         /* Check for NVMET being configured */
6626         phba->nvmet_support = 0;
6627         if (lpfc_enable_nvmet_cnt) {
6628
6629                 /* First get WWN of HBA instance */
6630                 lpfc_read_nv(phba, mboxq);
6631                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6632                 if (rc != MBX_SUCCESS) {
6633                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6634                                         "6016 Mailbox failed , mbxCmd x%x "
6635                                         "READ_NV, mbxStatus x%x\n",
6636                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6637                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6638                         mempool_free(mboxq, phba->mbox_mem_pool);
6639                         rc = -EIO;
6640                         goto out_free_bsmbx;
6641                 }
6642                 mb = &mboxq->u.mb;
6643                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6644                        sizeof(uint64_t));
6645                 wwn = cpu_to_be64(wwn);
6646                 phba->sli4_hba.wwnn.u.name = wwn;
6647                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6648                        sizeof(uint64_t));
6649                 /* wwn is WWPN of HBA instance */
6650                 wwn = cpu_to_be64(wwn);
6651                 phba->sli4_hba.wwpn.u.name = wwn;
6652
6653                 /* Check to see if it matches any module parameter */
6654                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6655                         if (wwn == lpfc_enable_nvmet[i]) {
6656 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6657                                 if (lpfc_nvmet_mem_alloc(phba))
6658                                         break;
6659
6660                                 phba->nvmet_support = 1; /* a match */
6661
6662                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6663                                                 "6017 NVME Target %016llx\n",
6664                                                 wwn);
6665 #else
6666                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6667                                                 "6021 Can't enable NVME Target."
6668                                                 " NVME_TARGET_FC infrastructure"
6669                                                 " is not in kernel\n");
6670 #endif
6671                                 /* Not supported for NVMET */
6672                                 phba->cfg_xri_rebalancing = 0;
6673                                 break;
6674                         }
6675                 }
6676         }
6677
6678         lpfc_nvme_mod_param_dep(phba);
6679
6680         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6681         lpfc_supported_pages(mboxq);
6682         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6683         if (!rc) {
6684                 mqe = &mboxq->u.mqe;
6685                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6686                        LPFC_MAX_SUPPORTED_PAGES);
6687                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6688                         switch (pn_page[i]) {
6689                         case LPFC_SLI4_PARAMETERS:
6690                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6691                                 break;
6692                         default:
6693                                 break;
6694                         }
6695                 }
6696                 /* Read the port's SLI4 Parameters capabilities if supported. */
6697                 if (phba->sli4_hba.pc_sli4_params.supported)
6698                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6699                 if (rc) {
6700                         mempool_free(mboxq, phba->mbox_mem_pool);
6701                         rc = -EIO;
6702                         goto out_free_bsmbx;
6703                 }
6704         }
6705
6706         /*
6707          * Get sli4 parameters that override parameters from Port capabilities.
6708          * If this call fails, it isn't critical unless the SLI4 parameters come
6709          * back in conflict.
6710          */
6711         rc = lpfc_get_sli4_parameters(phba, mboxq);
6712         if (rc) {
6713                 if_type = bf_get(lpfc_sli_intf_if_type,
6714                                  &phba->sli4_hba.sli_intf);
6715                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6716                                 &phba->sli4_hba.sli_intf);
6717                 if (phba->sli4_hba.extents_in_use &&
6718                     phba->sli4_hba.rpi_hdrs_in_use) {
6719                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6720                                 "2999 Unsupported SLI4 Parameters "
6721                                 "Extents and RPI headers enabled.\n");
6722                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6723                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6724                                 mempool_free(mboxq, phba->mbox_mem_pool);
6725                                 rc = -EIO;
6726                                 goto out_free_bsmbx;
6727                         }
6728                 }
6729                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6730                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6731                         mempool_free(mboxq, phba->mbox_mem_pool);
6732                         rc = -EIO;
6733                         goto out_free_bsmbx;
6734                 }
6735         }
6736
6737         /*
6738          * 1 for cmd, 1 for rsp, NVME adds an extra one
6739          * for boundary conditions in its max_sgl_segment template.
6740          */
6741         extra = 2;
6742         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6743                 extra++;
6744
6745         /*
6746          * It doesn't matter what family our adapter is in, we are
6747          * limited to 2 Pages, 512 SGEs, for our SGL.
6748          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6749          */
6750         max_buf_size = (2 * SLI4_PAGE_SIZE);
6751
6752         /*
6753          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6754          * used to create the sg_dma_buf_pool must be calculated.
6755          */
6756         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6757                 /* Both cfg_enable_bg and cfg_external_dif code paths */
6758
6759                 /*
6760                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6761                  * the FCP rsp, and a SGE. Sice we have no control
6762                  * over how many protection segments the SCSI Layer
6763                  * will hand us (ie: there could be one for every block
6764                  * in the IO), just allocate enough SGEs to accomidate
6765                  * our max amount and we need to limit lpfc_sg_seg_cnt
6766                  * to minimize the risk of running out.
6767                  */
6768                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6769                                 sizeof(struct fcp_rsp) + max_buf_size;
6770
6771                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6772                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6773
6774                 /*
6775                  * If supporting DIF, reduce the seg count for scsi to
6776                  * allow room for the DIF sges.
6777                  */
6778                 if (phba->cfg_enable_bg &&
6779                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6780                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6781                 else
6782                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6783
6784         } else {
6785                 /*
6786                  * The scsi_buf for a regular I/O holds the FCP cmnd,
6787                  * the FCP rsp, a SGE for each, and a SGE for up to
6788                  * cfg_sg_seg_cnt data segments.
6789                  */
6790                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6791                                 sizeof(struct fcp_rsp) +
6792                                 ((phba->cfg_sg_seg_cnt + extra) *
6793                                 sizeof(struct sli4_sge));
6794
6795                 /* Total SGEs for scsi_sg_list */
6796                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6797                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6798
6799                 /*
6800                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6801                  * need to post 1 page for the SGL.
6802                  */
6803         }
6804
6805         if (phba->cfg_xpsgl && !phba->nvmet_support)
6806                 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
6807         else if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
6808                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6809         else
6810                 phba->cfg_sg_dma_buf_size =
6811                                 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6812
6813         phba->border_sge_num = phba->cfg_sg_dma_buf_size /
6814                                sizeof(struct sli4_sge);
6815
6816         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6817         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6818                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6819                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6820                                         "6300 Reducing NVME sg segment "
6821                                         "cnt to %d\n",
6822                                         LPFC_MAX_NVME_SEG_CNT);
6823                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6824                 } else
6825                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6826         }
6827
6828         /* Initialize the host templates with the updated values. */
6829         lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6830         lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6831         lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt;
6832
6833         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6834                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
6835                         "total:%d scsi:%d nvme:%d\n",
6836                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6837                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
6838                         phba->cfg_nvme_seg_cnt);
6839
6840         if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
6841                 i = phba->cfg_sg_dma_buf_size;
6842         else
6843                 i = SLI4_PAGE_SIZE;
6844
6845         phba->lpfc_sg_dma_buf_pool =
6846                         dma_pool_create("lpfc_sg_dma_buf_pool",
6847                                         &phba->pcidev->dev,
6848                                         phba->cfg_sg_dma_buf_size,
6849                                         i, 0);
6850         if (!phba->lpfc_sg_dma_buf_pool)
6851                 goto out_free_bsmbx;
6852
6853         phba->lpfc_cmd_rsp_buf_pool =
6854                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
6855                                         &phba->pcidev->dev,
6856                                         sizeof(struct fcp_cmnd) +
6857                                         sizeof(struct fcp_rsp),
6858                                         i, 0);
6859         if (!phba->lpfc_cmd_rsp_buf_pool)
6860                 goto out_free_sg_dma_buf;
6861
6862         mempool_free(mboxq, phba->mbox_mem_pool);
6863
6864         /* Verify OAS is supported */
6865         lpfc_sli4_oas_verify(phba);
6866
6867         /* Verify RAS support on adapter */
6868         lpfc_sli4_ras_init(phba);
6869
6870         /* Verify all the SLI4 queues */
6871         rc = lpfc_sli4_queue_verify(phba);
6872         if (rc)
6873                 goto out_free_cmd_rsp_buf;
6874
6875         /* Create driver internal CQE event pool */
6876         rc = lpfc_sli4_cq_event_pool_create(phba);
6877         if (rc)
6878                 goto out_free_cmd_rsp_buf;
6879
6880         /* Initialize sgl lists per host */
6881         lpfc_init_sgl_list(phba);
6882
6883         /* Allocate and initialize active sgl array */
6884         rc = lpfc_init_active_sgl_array(phba);
6885         if (rc) {
6886                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6887                                 "1430 Failed to initialize sgl list.\n");
6888                 goto out_destroy_cq_event_pool;
6889         }
6890         rc = lpfc_sli4_init_rpi_hdrs(phba);
6891         if (rc) {
6892                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6893                                 "1432 Failed to initialize rpi headers.\n");
6894                 goto out_free_active_sgl;
6895         }
6896
6897         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6898         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6899         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6900                                          GFP_KERNEL);
6901         if (!phba->fcf.fcf_rr_bmask) {
6902                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6903                                 "2759 Failed allocate memory for FCF round "
6904                                 "robin failover bmask\n");
6905                 rc = -ENOMEM;
6906                 goto out_remove_rpi_hdrs;
6907         }
6908
6909         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
6910                                             sizeof(struct lpfc_hba_eq_hdl),
6911                                             GFP_KERNEL);
6912         if (!phba->sli4_hba.hba_eq_hdl) {
6913                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6914                                 "2572 Failed allocate memory for "
6915                                 "fast-path per-EQ handle array\n");
6916                 rc = -ENOMEM;
6917                 goto out_free_fcf_rr_bmask;
6918         }
6919
6920         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
6921                                         sizeof(struct lpfc_vector_map_info),
6922                                         GFP_KERNEL);
6923         if (!phba->sli4_hba.cpu_map) {
6924                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6925                                 "3327 Failed allocate memory for msi-x "
6926                                 "interrupt vector mapping\n");
6927                 rc = -ENOMEM;
6928                 goto out_free_hba_eq_hdl;
6929         }
6930
6931         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
6932         if (!phba->sli4_hba.eq_info) {
6933                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6934                                 "3321 Failed allocation for per_cpu stats\n");
6935                 rc = -ENOMEM;
6936                 goto out_free_hba_cpu_map;
6937         }
6938         /*
6939          * Enable sr-iov virtual functions if supported and configured
6940          * through the module parameter.
6941          */
6942         if (phba->cfg_sriov_nr_virtfn > 0) {
6943                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6944                                                  phba->cfg_sriov_nr_virtfn);
6945                 if (rc) {
6946                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6947                                         "3020 Requested number of SR-IOV "
6948                                         "virtual functions (%d) is not "
6949                                         "supported\n",
6950                                         phba->cfg_sriov_nr_virtfn);
6951                         phba->cfg_sriov_nr_virtfn = 0;
6952                 }
6953         }
6954
6955         return 0;
6956
6957 out_free_hba_cpu_map:
6958         kfree(phba->sli4_hba.cpu_map);
6959 out_free_hba_eq_hdl:
6960         kfree(phba->sli4_hba.hba_eq_hdl);
6961 out_free_fcf_rr_bmask:
6962         kfree(phba->fcf.fcf_rr_bmask);
6963 out_remove_rpi_hdrs:
6964         lpfc_sli4_remove_rpi_hdrs(phba);
6965 out_free_active_sgl:
6966         lpfc_free_active_sgl(phba);
6967 out_destroy_cq_event_pool:
6968         lpfc_sli4_cq_event_pool_destroy(phba);
6969 out_free_cmd_rsp_buf:
6970         dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
6971         phba->lpfc_cmd_rsp_buf_pool = NULL;
6972 out_free_sg_dma_buf:
6973         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
6974         phba->lpfc_sg_dma_buf_pool = NULL;
6975 out_free_bsmbx:
6976         lpfc_destroy_bootstrap_mbox(phba);
6977 out_free_mem:
6978         lpfc_mem_free(phba);
6979         return rc;
6980 }
6981
6982 /**
6983  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6984  * @phba: pointer to lpfc hba data structure.
6985  *
6986  * This routine is invoked to unset the driver internal resources set up
6987  * specific for supporting the SLI-4 HBA device it attached to.
6988  **/
6989 static void
6990 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6991 {
6992         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6993
6994         free_percpu(phba->sli4_hba.eq_info);
6995
6996         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6997         kfree(phba->sli4_hba.cpu_map);
6998         phba->sli4_hba.num_possible_cpu = 0;
6999         phba->sli4_hba.num_present_cpu = 0;
7000         phba->sli4_hba.curr_disp_cpu = 0;
7001         cpumask_clear(&phba->sli4_hba.numa_mask);
7002
7003         /* Free memory allocated for fast-path work queue handles */
7004         kfree(phba->sli4_hba.hba_eq_hdl);
7005
7006         /* Free the allocated rpi headers. */
7007         lpfc_sli4_remove_rpi_hdrs(phba);
7008         lpfc_sli4_remove_rpis(phba);
7009
7010         /* Free eligible FCF index bmask */
7011         kfree(phba->fcf.fcf_rr_bmask);
7012
7013         /* Free the ELS sgl list */
7014         lpfc_free_active_sgl(phba);
7015         lpfc_free_els_sgl_list(phba);
7016         lpfc_free_nvmet_sgl_list(phba);
7017
7018         /* Free the completion queue EQ event pool */
7019         lpfc_sli4_cq_event_release_all(phba);
7020         lpfc_sli4_cq_event_pool_destroy(phba);
7021
7022         /* Release resource identifiers. */
7023         lpfc_sli4_dealloc_resource_identifiers(phba);
7024
7025         /* Free the bsmbx region. */
7026         lpfc_destroy_bootstrap_mbox(phba);
7027
7028         /* Free the SLI Layer memory with SLI4 HBAs */
7029         lpfc_mem_free_all(phba);
7030
7031         /* Free the current connect table */
7032         list_for_each_entry_safe(conn_entry, next_conn_entry,
7033                 &phba->fcf_conn_rec_list, list) {
7034                 list_del_init(&conn_entry->list);
7035                 kfree(conn_entry);
7036         }
7037
7038         return;
7039 }
7040
7041 /**
7042  * lpfc_init_api_table_setup - Set up init api function jump table
7043  * @phba: The hba struct for which this call is being executed.
7044  * @dev_grp: The HBA PCI-Device group number.
7045  *
7046  * This routine sets up the device INIT interface API function jump table
7047  * in @phba struct.
7048  *
7049  * Returns: 0 - success, -ENODEV - failure.
7050  **/
7051 int
7052 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7053 {
7054         phba->lpfc_hba_init_link = lpfc_hba_init_link;
7055         phba->lpfc_hba_down_link = lpfc_hba_down_link;
7056         phba->lpfc_selective_reset = lpfc_selective_reset;
7057         switch (dev_grp) {
7058         case LPFC_PCI_DEV_LP:
7059                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
7060                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
7061                 phba->lpfc_stop_port = lpfc_stop_port_s3;
7062                 break;
7063         case LPFC_PCI_DEV_OC:
7064                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
7065                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
7066                 phba->lpfc_stop_port = lpfc_stop_port_s4;
7067                 break;
7068         default:
7069                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7070                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
7071                                 dev_grp);
7072                 return -ENODEV;
7073                 break;
7074         }
7075         return 0;
7076 }
7077
7078 /**
7079  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
7080  * @phba: pointer to lpfc hba data structure.
7081  *
7082  * This routine is invoked to set up the driver internal resources after the
7083  * device specific resource setup to support the HBA device it attached to.
7084  *
7085  * Return codes
7086  *      0 - successful
7087  *      other values - error
7088  **/
7089 static int
7090 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
7091 {
7092         int error;
7093
7094         /* Startup the kernel thread for this host adapter. */
7095         phba->worker_thread = kthread_run(lpfc_do_work, phba,
7096                                           "lpfc_worker_%d", phba->brd_no);
7097         if (IS_ERR(phba->worker_thread)) {
7098                 error = PTR_ERR(phba->worker_thread);
7099                 return error;
7100         }
7101
7102         return 0;
7103 }
7104
7105 /**
7106  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
7107  * @phba: pointer to lpfc hba data structure.
7108  *
7109  * This routine is invoked to unset the driver internal resources set up after
7110  * the device specific resource setup for supporting the HBA device it
7111  * attached to.
7112  **/
7113 static void
7114 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
7115 {
7116         if (phba->wq) {
7117                 flush_workqueue(phba->wq);
7118                 destroy_workqueue(phba->wq);
7119                 phba->wq = NULL;
7120         }
7121
7122         /* Stop kernel worker thread */
7123         if (phba->worker_thread)
7124                 kthread_stop(phba->worker_thread);
7125 }
7126
7127 /**
7128  * lpfc_free_iocb_list - Free iocb list.
7129  * @phba: pointer to lpfc hba data structure.
7130  *
7131  * This routine is invoked to free the driver's IOCB list and memory.
7132  **/
7133 void
7134 lpfc_free_iocb_list(struct lpfc_hba *phba)
7135 {
7136         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
7137
7138         spin_lock_irq(&phba->hbalock);
7139         list_for_each_entry_safe(iocbq_entry, iocbq_next,
7140                                  &phba->lpfc_iocb_list, list) {
7141                 list_del(&iocbq_entry->list);
7142                 kfree(iocbq_entry);
7143                 phba->total_iocbq_bufs--;
7144         }
7145         spin_unlock_irq(&phba->hbalock);
7146
7147         return;
7148 }
7149
7150 /**
7151  * lpfc_init_iocb_list - Allocate and initialize iocb list.
7152  * @phba: pointer to lpfc hba data structure.
7153  *
7154  * This routine is invoked to allocate and initizlize the driver's IOCB
7155  * list and set up the IOCB tag array accordingly.
7156  *
7157  * Return codes
7158  *      0 - successful
7159  *      other values - error
7160  **/
7161 int
7162 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
7163 {
7164         struct lpfc_iocbq *iocbq_entry = NULL;
7165         uint16_t iotag;
7166         int i;
7167
7168         /* Initialize and populate the iocb list per host.  */
7169         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
7170         for (i = 0; i < iocb_count; i++) {
7171                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
7172                 if (iocbq_entry == NULL) {
7173                         printk(KERN_ERR "%s: only allocated %d iocbs of "
7174                                 "expected %d count. Unloading driver.\n",
7175                                 __func__, i, iocb_count);
7176                         goto out_free_iocbq;
7177                 }
7178
7179                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
7180                 if (iotag == 0) {
7181                         kfree(iocbq_entry);
7182                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
7183                                 "Unloading driver.\n", __func__);
7184                         goto out_free_iocbq;
7185                 }
7186                 iocbq_entry->sli4_lxritag = NO_XRI;
7187                 iocbq_entry->sli4_xritag = NO_XRI;
7188
7189                 spin_lock_irq(&phba->hbalock);
7190                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
7191                 phba->total_iocbq_bufs++;
7192                 spin_unlock_irq(&phba->hbalock);
7193         }
7194
7195         return 0;
7196
7197 out_free_iocbq:
7198         lpfc_free_iocb_list(phba);
7199
7200         return -ENOMEM;
7201 }
7202
7203 /**
7204  * lpfc_free_sgl_list - Free a given sgl list.
7205  * @phba: pointer to lpfc hba data structure.
7206  * @sglq_list: pointer to the head of sgl list.
7207  *
7208  * This routine is invoked to free a give sgl list and memory.
7209  **/
7210 void
7211 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
7212 {
7213         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7214
7215         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
7216                 list_del(&sglq_entry->list);
7217                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
7218                 kfree(sglq_entry);
7219         }
7220 }
7221
7222 /**
7223  * lpfc_free_els_sgl_list - Free els sgl list.
7224  * @phba: pointer to lpfc hba data structure.
7225  *
7226  * This routine is invoked to free the driver's els sgl list and memory.
7227  **/
7228 static void
7229 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
7230 {
7231         LIST_HEAD(sglq_list);
7232
7233         /* Retrieve all els sgls from driver list */
7234         spin_lock_irq(&phba->hbalock);
7235         spin_lock(&phba->sli4_hba.sgl_list_lock);
7236         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
7237         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7238         spin_unlock_irq(&phba->hbalock);
7239
7240         /* Now free the sgl list */
7241         lpfc_free_sgl_list(phba, &sglq_list);
7242 }
7243
7244 /**
7245  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
7246  * @phba: pointer to lpfc hba data structure.
7247  *
7248  * This routine is invoked to free the driver's nvmet sgl list and memory.
7249  **/
7250 static void
7251 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
7252 {
7253         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7254         LIST_HEAD(sglq_list);
7255
7256         /* Retrieve all nvmet sgls from driver list */
7257         spin_lock_irq(&phba->hbalock);
7258         spin_lock(&phba->sli4_hba.sgl_list_lock);
7259         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
7260         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7261         spin_unlock_irq(&phba->hbalock);
7262
7263         /* Now free the sgl list */
7264         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
7265                 list_del(&sglq_entry->list);
7266                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
7267                 kfree(sglq_entry);
7268         }
7269
7270         /* Update the nvmet_xri_cnt to reflect no current sgls.
7271          * The next initialization cycle sets the count and allocates
7272          * the sgls over again.
7273          */
7274         phba->sli4_hba.nvmet_xri_cnt = 0;
7275 }
7276
7277 /**
7278  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
7279  * @phba: pointer to lpfc hba data structure.
7280  *
7281  * This routine is invoked to allocate the driver's active sgl memory.
7282  * This array will hold the sglq_entry's for active IOs.
7283  **/
7284 static int
7285 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
7286 {
7287         int size;
7288         size = sizeof(struct lpfc_sglq *);
7289         size *= phba->sli4_hba.max_cfg_param.max_xri;
7290
7291         phba->sli4_hba.lpfc_sglq_active_list =
7292                 kzalloc(size, GFP_KERNEL);
7293         if (!phba->sli4_hba.lpfc_sglq_active_list)
7294                 return -ENOMEM;
7295         return 0;
7296 }
7297
7298 /**
7299  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
7300  * @phba: pointer to lpfc hba data structure.
7301  *
7302  * This routine is invoked to walk through the array of active sglq entries
7303  * and free all of the resources.
7304  * This is just a place holder for now.
7305  **/
7306 static void
7307 lpfc_free_active_sgl(struct lpfc_hba *phba)
7308 {
7309         kfree(phba->sli4_hba.lpfc_sglq_active_list);
7310 }
7311
7312 /**
7313  * lpfc_init_sgl_list - Allocate and initialize sgl list.
7314  * @phba: pointer to lpfc hba data structure.
7315  *
7316  * This routine is invoked to allocate and initizlize the driver's sgl
7317  * list and set up the sgl xritag tag array accordingly.
7318  *
7319  **/
7320 static void
7321 lpfc_init_sgl_list(struct lpfc_hba *phba)
7322 {
7323         /* Initialize and populate the sglq list per host/VF. */
7324         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
7325         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7326         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
7327         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7328
7329         /* els xri-sgl book keeping */
7330         phba->sli4_hba.els_xri_cnt = 0;
7331
7332         /* nvme xri-buffer book keeping */
7333         phba->sli4_hba.io_xri_cnt = 0;
7334 }
7335
7336 /**
7337  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
7338  * @phba: pointer to lpfc hba data structure.
7339  *
7340  * This routine is invoked to post rpi header templates to the
7341  * port for those SLI4 ports that do not support extents.  This routine
7342  * posts a PAGE_SIZE memory region to the port to hold up to
7343  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
7344  * and should be called only when interrupts are disabled.
7345  *
7346  * Return codes
7347  *      0 - successful
7348  *      -ERROR - otherwise.
7349  **/
7350 int
7351 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
7352 {
7353         int rc = 0;
7354         struct lpfc_rpi_hdr *rpi_hdr;
7355
7356         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
7357         if (!phba->sli4_hba.rpi_hdrs_in_use)
7358                 return rc;
7359         if (phba->sli4_hba.extents_in_use)
7360                 return -EIO;
7361
7362         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
7363         if (!rpi_hdr) {
7364                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7365                                 "0391 Error during rpi post operation\n");
7366                 lpfc_sli4_remove_rpis(phba);
7367                 rc = -ENODEV;
7368         }
7369
7370         return rc;
7371 }
7372
7373 /**
7374  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
7375  * @phba: pointer to lpfc hba data structure.
7376  *
7377  * This routine is invoked to allocate a single 4KB memory region to
7378  * support rpis and stores them in the phba.  This single region
7379  * provides support for up to 64 rpis.  The region is used globally
7380  * by the device.
7381  *
7382  * Returns:
7383  *   A valid rpi hdr on success.
7384  *   A NULL pointer on any failure.
7385  **/
7386 struct lpfc_rpi_hdr *
7387 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
7388 {
7389         uint16_t rpi_limit, curr_rpi_range;
7390         struct lpfc_dmabuf *dmabuf;
7391         struct lpfc_rpi_hdr *rpi_hdr;
7392
7393         /*
7394          * If the SLI4 port supports extents, posting the rpi header isn't
7395          * required.  Set the expected maximum count and let the actual value
7396          * get set when extents are fully allocated.
7397          */
7398         if (!phba->sli4_hba.rpi_hdrs_in_use)
7399                 return NULL;
7400         if (phba->sli4_hba.extents_in_use)
7401                 return NULL;
7402
7403         /* The limit on the logical index is just the max_rpi count. */
7404         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
7405
7406         spin_lock_irq(&phba->hbalock);
7407         /*
7408          * Establish the starting RPI in this header block.  The starting
7409          * rpi is normalized to a zero base because the physical rpi is
7410          * port based.
7411          */
7412         curr_rpi_range = phba->sli4_hba.next_rpi;
7413         spin_unlock_irq(&phba->hbalock);
7414
7415         /* Reached full RPI range */
7416         if (curr_rpi_range == rpi_limit)
7417                 return NULL;
7418
7419         /*
7420          * First allocate the protocol header region for the port.  The
7421          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
7422          */
7423         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7424         if (!dmabuf)
7425                 return NULL;
7426
7427         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
7428                                           LPFC_HDR_TEMPLATE_SIZE,
7429                                           &dmabuf->phys, GFP_KERNEL);
7430         if (!dmabuf->virt) {
7431                 rpi_hdr = NULL;
7432                 goto err_free_dmabuf;
7433         }
7434
7435         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
7436                 rpi_hdr = NULL;
7437                 goto err_free_coherent;
7438         }
7439
7440         /* Save the rpi header data for cleanup later. */
7441         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
7442         if (!rpi_hdr)
7443                 goto err_free_coherent;
7444
7445         rpi_hdr->dmabuf = dmabuf;
7446         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
7447         rpi_hdr->page_count = 1;
7448         spin_lock_irq(&phba->hbalock);
7449
7450         /* The rpi_hdr stores the logical index only. */
7451         rpi_hdr->start_rpi = curr_rpi_range;
7452         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7453         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7454
7455         spin_unlock_irq(&phba->hbalock);
7456         return rpi_hdr;
7457
7458  err_free_coherent:
7459         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7460                           dmabuf->virt, dmabuf->phys);
7461  err_free_dmabuf:
7462         kfree(dmabuf);
7463         return NULL;
7464 }
7465
7466 /**
7467  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7468  * @phba: pointer to lpfc hba data structure.
7469  *
7470  * This routine is invoked to remove all memory resources allocated
7471  * to support rpis for SLI4 ports not supporting extents. This routine
7472  * presumes the caller has released all rpis consumed by fabric or port
7473  * logins and is prepared to have the header pages removed.
7474  **/
7475 void
7476 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7477 {
7478         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7479
7480         if (!phba->sli4_hba.rpi_hdrs_in_use)
7481                 goto exit;
7482
7483         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7484                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7485                 list_del(&rpi_hdr->list);
7486                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7487                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7488                 kfree(rpi_hdr->dmabuf);
7489                 kfree(rpi_hdr);
7490         }
7491  exit:
7492         /* There are no rpis available to the port now. */
7493         phba->sli4_hba.next_rpi = 0;
7494 }
7495
7496 /**
7497  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7498  * @pdev: pointer to pci device data structure.
7499  *
7500  * This routine is invoked to allocate the driver hba data structure for an
7501  * HBA device. If the allocation is successful, the phba reference to the
7502  * PCI device data structure is set.
7503  *
7504  * Return codes
7505  *      pointer to @phba - successful
7506  *      NULL - error
7507  **/
7508 static struct lpfc_hba *
7509 lpfc_hba_alloc(struct pci_dev *pdev)
7510 {
7511         struct lpfc_hba *phba;
7512
7513         /* Allocate memory for HBA structure */
7514         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7515         if (!phba) {
7516                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
7517                 return NULL;
7518         }
7519
7520         /* Set reference to PCI device in HBA structure */
7521         phba->pcidev = pdev;
7522
7523         /* Assign an unused board number */
7524         phba->brd_no = lpfc_get_instance();
7525         if (phba->brd_no < 0) {
7526                 kfree(phba);
7527                 return NULL;
7528         }
7529         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7530
7531         spin_lock_init(&phba->ct_ev_lock);
7532         INIT_LIST_HEAD(&phba->ct_ev_waiters);
7533
7534         return phba;
7535 }
7536
7537 /**
7538  * lpfc_hba_free - Free driver hba data structure with a device.
7539  * @phba: pointer to lpfc hba data structure.
7540  *
7541  * This routine is invoked to free the driver hba data structure with an
7542  * HBA device.
7543  **/
7544 static void
7545 lpfc_hba_free(struct lpfc_hba *phba)
7546 {
7547         if (phba->sli_rev == LPFC_SLI_REV4)
7548                 kfree(phba->sli4_hba.hdwq);
7549
7550         /* Release the driver assigned board number */
7551         idr_remove(&lpfc_hba_index, phba->brd_no);
7552
7553         /* Free memory allocated with sli3 rings */
7554         kfree(phba->sli.sli3_ring);
7555         phba->sli.sli3_ring = NULL;
7556
7557         kfree(phba);
7558         return;
7559 }
7560
7561 /**
7562  * lpfc_create_shost - Create hba physical port with associated scsi host.
7563  * @phba: pointer to lpfc hba data structure.
7564  *
7565  * This routine is invoked to create HBA physical port and associate a SCSI
7566  * host with it.
7567  *
7568  * Return codes
7569  *      0 - successful
7570  *      other values - error
7571  **/
7572 static int
7573 lpfc_create_shost(struct lpfc_hba *phba)
7574 {
7575         struct lpfc_vport *vport;
7576         struct Scsi_Host  *shost;
7577
7578         /* Initialize HBA FC structure */
7579         phba->fc_edtov = FF_DEF_EDTOV;
7580         phba->fc_ratov = FF_DEF_RATOV;
7581         phba->fc_altov = FF_DEF_ALTOV;
7582         phba->fc_arbtov = FF_DEF_ARBTOV;
7583
7584         atomic_set(&phba->sdev_cnt, 0);
7585         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7586         if (!vport)
7587                 return -ENODEV;
7588
7589         shost = lpfc_shost_from_vport(vport);
7590         phba->pport = vport;
7591
7592         if (phba->nvmet_support) {
7593                 /* Only 1 vport (pport) will support NVME target */
7594                 phba->targetport = NULL;
7595                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7596                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
7597                                 "6076 NVME Target Found\n");
7598         }
7599
7600         lpfc_debugfs_initialize(vport);
7601         /* Put reference to SCSI host to driver's device private data */
7602         pci_set_drvdata(phba->pcidev, shost);
7603
7604         /*
7605          * At this point we are fully registered with PSA. In addition,
7606          * any initial discovery should be completed.
7607          */
7608         vport->load_flag |= FC_ALLOW_FDMI;
7609         if (phba->cfg_enable_SmartSAN ||
7610             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7611
7612                 /* Setup appropriate attribute masks */
7613                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7614                 if (phba->cfg_enable_SmartSAN)
7615                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7616                 else
7617                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7618         }
7619         return 0;
7620 }
7621
7622 /**
7623  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7624  * @phba: pointer to lpfc hba data structure.
7625  *
7626  * This routine is invoked to destroy HBA physical port and the associated
7627  * SCSI host.
7628  **/
7629 static void
7630 lpfc_destroy_shost(struct lpfc_hba *phba)
7631 {
7632         struct lpfc_vport *vport = phba->pport;
7633
7634         /* Destroy physical port that associated with the SCSI host */
7635         destroy_port(vport);
7636
7637         return;
7638 }
7639
7640 /**
7641  * lpfc_setup_bg - Setup Block guard structures and debug areas.
7642  * @phba: pointer to lpfc hba data structure.
7643  * @shost: the shost to be used to detect Block guard settings.
7644  *
7645  * This routine sets up the local Block guard protocol settings for @shost.
7646  * This routine also allocates memory for debugging bg buffers.
7647  **/
7648 static void
7649 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7650 {
7651         uint32_t old_mask;
7652         uint32_t old_guard;
7653
7654         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7655                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7656                                 "1478 Registering BlockGuard with the "
7657                                 "SCSI layer\n");
7658
7659                 old_mask = phba->cfg_prot_mask;
7660                 old_guard = phba->cfg_prot_guard;
7661
7662                 /* Only allow supported values */
7663                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7664                         SHOST_DIX_TYPE0_PROTECTION |
7665                         SHOST_DIX_TYPE1_PROTECTION);
7666                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7667                                          SHOST_DIX_GUARD_CRC);
7668
7669                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7670                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7671                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7672
7673                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7674                         if ((old_mask != phba->cfg_prot_mask) ||
7675                                 (old_guard != phba->cfg_prot_guard))
7676                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7677                                         "1475 Registering BlockGuard with the "
7678                                         "SCSI layer: mask %d  guard %d\n",
7679                                         phba->cfg_prot_mask,
7680                                         phba->cfg_prot_guard);
7681
7682                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7683                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7684                 } else
7685                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7686                                 "1479 Not Registering BlockGuard with the SCSI "
7687                                 "layer, Bad protection parameters: %d %d\n",
7688                                 old_mask, old_guard);
7689         }
7690 }
7691
7692 /**
7693  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7694  * @phba: pointer to lpfc hba data structure.
7695  *
7696  * This routine is invoked to perform all the necessary post initialization
7697  * setup for the device.
7698  **/
7699 static void
7700 lpfc_post_init_setup(struct lpfc_hba *phba)
7701 {
7702         struct Scsi_Host  *shost;
7703         struct lpfc_adapter_event_header adapter_event;
7704
7705         /* Get the default values for Model Name and Description */
7706         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7707
7708         /*
7709          * hba setup may have changed the hba_queue_depth so we need to
7710          * adjust the value of can_queue.
7711          */
7712         shost = pci_get_drvdata(phba->pcidev);
7713         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7714
7715         lpfc_host_attrib_init(shost);
7716
7717         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7718                 spin_lock_irq(shost->host_lock);
7719                 lpfc_poll_start_timer(phba);
7720                 spin_unlock_irq(shost->host_lock);
7721         }
7722
7723         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7724                         "0428 Perform SCSI scan\n");
7725         /* Send board arrival event to upper layer */
7726         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7727         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7728         fc_host_post_vendor_event(shost, fc_get_event_number(),
7729                                   sizeof(adapter_event),
7730                                   (char *) &adapter_event,
7731                                   LPFC_NL_VENDOR_ID);
7732         return;
7733 }
7734
7735 /**
7736  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7737  * @phba: pointer to lpfc hba data structure.
7738  *
7739  * This routine is invoked to set up the PCI device memory space for device
7740  * with SLI-3 interface spec.
7741  *
7742  * Return codes
7743  *      0 - successful
7744  *      other values - error
7745  **/
7746 static int
7747 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7748 {
7749         struct pci_dev *pdev = phba->pcidev;
7750         unsigned long bar0map_len, bar2map_len;
7751         int i, hbq_count;
7752         void *ptr;
7753         int error;
7754
7755         if (!pdev)
7756                 return -ENODEV;
7757
7758         /* Set the device DMA mask size */
7759         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
7760         if (error)
7761                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
7762         if (error)
7763                 return error;
7764         error = -ENODEV;
7765
7766         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7767          * required by each mapping.
7768          */
7769         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7770         bar0map_len = pci_resource_len(pdev, 0);
7771
7772         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7773         bar2map_len = pci_resource_len(pdev, 2);
7774
7775         /* Map HBA SLIM to a kernel virtual address. */
7776         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7777         if (!phba->slim_memmap_p) {
7778                 dev_printk(KERN_ERR, &pdev->dev,
7779                            "ioremap failed for SLIM memory.\n");
7780                 goto out;
7781         }
7782
7783         /* Map HBA Control Registers to a kernel virtual address. */
7784         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7785         if (!phba->ctrl_regs_memmap_p) {
7786                 dev_printk(KERN_ERR, &pdev->dev,
7787                            "ioremap failed for HBA control registers.\n");
7788                 goto out_iounmap_slim;
7789         }
7790
7791         /* Allocate memory for SLI-2 structures */
7792         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7793                                                &phba->slim2p.phys, GFP_KERNEL);
7794         if (!phba->slim2p.virt)
7795                 goto out_iounmap;
7796
7797         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7798         phba->mbox_ext = (phba->slim2p.virt +
7799                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7800         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7801         phba->IOCBs = (phba->slim2p.virt +
7802                        offsetof(struct lpfc_sli2_slim, IOCBs));
7803
7804         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7805                                                  lpfc_sli_hbq_size(),
7806                                                  &phba->hbqslimp.phys,
7807                                                  GFP_KERNEL);
7808         if (!phba->hbqslimp.virt)
7809                 goto out_free_slim;
7810
7811         hbq_count = lpfc_sli_hbq_count();
7812         ptr = phba->hbqslimp.virt;
7813         for (i = 0; i < hbq_count; ++i) {
7814                 phba->hbqs[i].hbq_virt = ptr;
7815                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7816                 ptr += (lpfc_hbq_defs[i]->entry_count *
7817                         sizeof(struct lpfc_hbq_entry));
7818         }
7819         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7820         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7821
7822         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7823
7824         phba->MBslimaddr = phba->slim_memmap_p;
7825         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7826         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7827         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7828         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7829
7830         return 0;
7831
7832 out_free_slim:
7833         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7834                           phba->slim2p.virt, phba->slim2p.phys);
7835 out_iounmap:
7836         iounmap(phba->ctrl_regs_memmap_p);
7837 out_iounmap_slim:
7838         iounmap(phba->slim_memmap_p);
7839 out:
7840         return error;
7841 }
7842
7843 /**
7844  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7845  * @phba: pointer to lpfc hba data structure.
7846  *
7847  * This routine is invoked to unset the PCI device memory space for device
7848  * with SLI-3 interface spec.
7849  **/
7850 static void
7851 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7852 {
7853         struct pci_dev *pdev;
7854
7855         /* Obtain PCI device reference */
7856         if (!phba->pcidev)
7857                 return;
7858         else
7859                 pdev = phba->pcidev;
7860
7861         /* Free coherent DMA memory allocated */
7862         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7863                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7864         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7865                           phba->slim2p.virt, phba->slim2p.phys);
7866
7867         /* I/O memory unmap */
7868         iounmap(phba->ctrl_regs_memmap_p);
7869         iounmap(phba->slim_memmap_p);
7870
7871         return;
7872 }
7873
7874 /**
7875  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7876  * @phba: pointer to lpfc hba data structure.
7877  *
7878  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7879  * done and check status.
7880  *
7881  * Return 0 if successful, otherwise -ENODEV.
7882  **/
7883 int
7884 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7885 {
7886         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7887         struct lpfc_register reg_data;
7888         int i, port_error = 0;
7889         uint32_t if_type;
7890
7891         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7892         memset(&reg_data, 0, sizeof(reg_data));
7893         if (!phba->sli4_hba.PSMPHRregaddr)
7894                 return -ENODEV;
7895
7896         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7897         for (i = 0; i < 3000; i++) {
7898                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7899                         &portsmphr_reg.word0) ||
7900                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7901                         /* Port has a fatal POST error, break out */
7902                         port_error = -ENODEV;
7903                         break;
7904                 }
7905                 if (LPFC_POST_STAGE_PORT_READY ==
7906                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7907                         break;
7908                 msleep(10);
7909         }
7910
7911         /*
7912          * If there was a port error during POST, then don't proceed with
7913          * other register reads as the data may not be valid.  Just exit.
7914          */
7915         if (port_error) {
7916                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7917                         "1408 Port Failed POST - portsmphr=0x%x, "
7918                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7919                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7920                         portsmphr_reg.word0,
7921                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7922                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7923                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7924                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7925                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7926                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7927                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7928                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7929         } else {
7930                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7931                                 "2534 Device Info: SLIFamily=0x%x, "
7932                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7933                                 "SLIHint_2=0x%x, FT=0x%x\n",
7934                                 bf_get(lpfc_sli_intf_sli_family,
7935                                        &phba->sli4_hba.sli_intf),
7936                                 bf_get(lpfc_sli_intf_slirev,
7937                                        &phba->sli4_hba.sli_intf),
7938                                 bf_get(lpfc_sli_intf_if_type,
7939                                        &phba->sli4_hba.sli_intf),
7940                                 bf_get(lpfc_sli_intf_sli_hint1,
7941                                        &phba->sli4_hba.sli_intf),
7942                                 bf_get(lpfc_sli_intf_sli_hint2,
7943                                        &phba->sli4_hba.sli_intf),
7944                                 bf_get(lpfc_sli_intf_func_type,
7945                                        &phba->sli4_hba.sli_intf));
7946                 /*
7947                  * Check for other Port errors during the initialization
7948                  * process.  Fail the load if the port did not come up
7949                  * correctly.
7950                  */
7951                 if_type = bf_get(lpfc_sli_intf_if_type,
7952                                  &phba->sli4_hba.sli_intf);
7953                 switch (if_type) {
7954                 case LPFC_SLI_INTF_IF_TYPE_0:
7955                         phba->sli4_hba.ue_mask_lo =
7956                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7957                         phba->sli4_hba.ue_mask_hi =
7958                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7959                         uerrlo_reg.word0 =
7960                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7961                         uerrhi_reg.word0 =
7962                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7963                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7964                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7965                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7966                                                 "1422 Unrecoverable Error "
7967                                                 "Detected during POST "
7968                                                 "uerr_lo_reg=0x%x, "
7969                                                 "uerr_hi_reg=0x%x, "
7970                                                 "ue_mask_lo_reg=0x%x, "
7971                                                 "ue_mask_hi_reg=0x%x\n",
7972                                                 uerrlo_reg.word0,
7973                                                 uerrhi_reg.word0,
7974                                                 phba->sli4_hba.ue_mask_lo,
7975                                                 phba->sli4_hba.ue_mask_hi);
7976                                 port_error = -ENODEV;
7977                         }
7978                         break;
7979                 case LPFC_SLI_INTF_IF_TYPE_2:
7980                 case LPFC_SLI_INTF_IF_TYPE_6:
7981                         /* Final checks.  The port status should be clean. */
7982                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7983                                 &reg_data.word0) ||
7984                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7985                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7986                                 phba->work_status[0] =
7987                                         readl(phba->sli4_hba.u.if_type2.
7988                                               ERR1regaddr);
7989                                 phba->work_status[1] =
7990                                         readl(phba->sli4_hba.u.if_type2.
7991                                               ERR2regaddr);
7992                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7993                                         "2888 Unrecoverable port error "
7994                                         "following POST: port status reg "
7995                                         "0x%x, port_smphr reg 0x%x, "
7996                                         "error 1=0x%x, error 2=0x%x\n",
7997                                         reg_data.word0,
7998                                         portsmphr_reg.word0,
7999                                         phba->work_status[0],
8000                                         phba->work_status[1]);
8001                                 port_error = -ENODEV;
8002                         }
8003                         break;
8004                 case LPFC_SLI_INTF_IF_TYPE_1:
8005                 default:
8006                         break;
8007                 }
8008         }
8009         return port_error;
8010 }
8011
8012 /**
8013  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
8014  * @phba: pointer to lpfc hba data structure.
8015  * @if_type:  The SLI4 interface type getting configured.
8016  *
8017  * This routine is invoked to set up SLI4 BAR0 PCI config space register
8018  * memory map.
8019  **/
8020 static void
8021 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8022 {
8023         switch (if_type) {
8024         case LPFC_SLI_INTF_IF_TYPE_0:
8025                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
8026                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
8027                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
8028                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
8029                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
8030                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
8031                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
8032                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
8033                 phba->sli4_hba.SLIINTFregaddr =
8034                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8035                 break;
8036         case LPFC_SLI_INTF_IF_TYPE_2:
8037                 phba->sli4_hba.u.if_type2.EQDregaddr =
8038                         phba->sli4_hba.conf_regs_memmap_p +
8039                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8040                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8041                         phba->sli4_hba.conf_regs_memmap_p +
8042                                                 LPFC_CTL_PORT_ER1_OFFSET;
8043                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8044                         phba->sli4_hba.conf_regs_memmap_p +
8045                                                 LPFC_CTL_PORT_ER2_OFFSET;
8046                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8047                         phba->sli4_hba.conf_regs_memmap_p +
8048                                                 LPFC_CTL_PORT_CTL_OFFSET;
8049                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8050                         phba->sli4_hba.conf_regs_memmap_p +
8051                                                 LPFC_CTL_PORT_STA_OFFSET;
8052                 phba->sli4_hba.SLIINTFregaddr =
8053                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
8054                 phba->sli4_hba.PSMPHRregaddr =
8055                         phba->sli4_hba.conf_regs_memmap_p +
8056                                                 LPFC_CTL_PORT_SEM_OFFSET;
8057                 phba->sli4_hba.RQDBregaddr =
8058                         phba->sli4_hba.conf_regs_memmap_p +
8059                                                 LPFC_ULP0_RQ_DOORBELL;
8060                 phba->sli4_hba.WQDBregaddr =
8061                         phba->sli4_hba.conf_regs_memmap_p +
8062                                                 LPFC_ULP0_WQ_DOORBELL;
8063                 phba->sli4_hba.CQDBregaddr =
8064                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
8065                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8066                 phba->sli4_hba.MQDBregaddr =
8067                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
8068                 phba->sli4_hba.BMBXregaddr =
8069                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8070                 break;
8071         case LPFC_SLI_INTF_IF_TYPE_6:
8072                 phba->sli4_hba.u.if_type2.EQDregaddr =
8073                         phba->sli4_hba.conf_regs_memmap_p +
8074                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8075                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8076                         phba->sli4_hba.conf_regs_memmap_p +
8077                                                 LPFC_CTL_PORT_ER1_OFFSET;
8078                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8079                         phba->sli4_hba.conf_regs_memmap_p +
8080                                                 LPFC_CTL_PORT_ER2_OFFSET;
8081                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8082                         phba->sli4_hba.conf_regs_memmap_p +
8083                                                 LPFC_CTL_PORT_CTL_OFFSET;
8084                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8085                         phba->sli4_hba.conf_regs_memmap_p +
8086                                                 LPFC_CTL_PORT_STA_OFFSET;
8087                 phba->sli4_hba.PSMPHRregaddr =
8088                         phba->sli4_hba.conf_regs_memmap_p +
8089                                                 LPFC_CTL_PORT_SEM_OFFSET;
8090                 phba->sli4_hba.BMBXregaddr =
8091                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8092                 break;
8093         case LPFC_SLI_INTF_IF_TYPE_1:
8094         default:
8095                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8096                            "FATAL - unsupported SLI4 interface type - %d\n",
8097                            if_type);
8098                 break;
8099         }
8100 }
8101
8102 /**
8103  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
8104  * @phba: pointer to lpfc hba data structure.
8105  *
8106  * This routine is invoked to set up SLI4 BAR1 register memory map.
8107  **/
8108 static void
8109 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8110 {
8111         switch (if_type) {
8112         case LPFC_SLI_INTF_IF_TYPE_0:
8113                 phba->sli4_hba.PSMPHRregaddr =
8114                         phba->sli4_hba.ctrl_regs_memmap_p +
8115                         LPFC_SLIPORT_IF0_SMPHR;
8116                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8117                         LPFC_HST_ISR0;
8118                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8119                         LPFC_HST_IMR0;
8120                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8121                         LPFC_HST_ISCR0;
8122                 break;
8123         case LPFC_SLI_INTF_IF_TYPE_6:
8124                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8125                         LPFC_IF6_RQ_DOORBELL;
8126                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8127                         LPFC_IF6_WQ_DOORBELL;
8128                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8129                         LPFC_IF6_CQ_DOORBELL;
8130                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8131                         LPFC_IF6_EQ_DOORBELL;
8132                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8133                         LPFC_IF6_MQ_DOORBELL;
8134                 break;
8135         case LPFC_SLI_INTF_IF_TYPE_2:
8136         case LPFC_SLI_INTF_IF_TYPE_1:
8137         default:
8138                 dev_err(&phba->pcidev->dev,
8139                            "FATAL - unsupported SLI4 interface type - %d\n",
8140                            if_type);
8141                 break;
8142         }
8143 }
8144
8145 /**
8146  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
8147  * @phba: pointer to lpfc hba data structure.
8148  * @vf: virtual function number
8149  *
8150  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
8151  * based on the given viftual function number, @vf.
8152  *
8153  * Return 0 if successful, otherwise -ENODEV.
8154  **/
8155 static int
8156 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
8157 {
8158         if (vf > LPFC_VIR_FUNC_MAX)
8159                 return -ENODEV;
8160
8161         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8162                                 vf * LPFC_VFR_PAGE_SIZE +
8163                                         LPFC_ULP0_RQ_DOORBELL);
8164         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8165                                 vf * LPFC_VFR_PAGE_SIZE +
8166                                         LPFC_ULP0_WQ_DOORBELL);
8167         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8168                                 vf * LPFC_VFR_PAGE_SIZE +
8169                                         LPFC_EQCQ_DOORBELL);
8170         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8171         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8172                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
8173         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8174                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
8175         return 0;
8176 }
8177
8178 /**
8179  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
8180  * @phba: pointer to lpfc hba data structure.
8181  *
8182  * This routine is invoked to create the bootstrap mailbox
8183  * region consistent with the SLI-4 interface spec.  This
8184  * routine allocates all memory necessary to communicate
8185  * mailbox commands to the port and sets up all alignment
8186  * needs.  No locks are expected to be held when calling
8187  * this routine.
8188  *
8189  * Return codes
8190  *      0 - successful
8191  *      -ENOMEM - could not allocated memory.
8192  **/
8193 static int
8194 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
8195 {
8196         uint32_t bmbx_size;
8197         struct lpfc_dmabuf *dmabuf;
8198         struct dma_address *dma_address;
8199         uint32_t pa_addr;
8200         uint64_t phys_addr;
8201
8202         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8203         if (!dmabuf)
8204                 return -ENOMEM;
8205
8206         /*
8207          * The bootstrap mailbox region is comprised of 2 parts
8208          * plus an alignment restriction of 16 bytes.
8209          */
8210         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
8211         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
8212                                           &dmabuf->phys, GFP_KERNEL);
8213         if (!dmabuf->virt) {
8214                 kfree(dmabuf);
8215                 return -ENOMEM;
8216         }
8217
8218         /*
8219          * Initialize the bootstrap mailbox pointers now so that the register
8220          * operations are simple later.  The mailbox dma address is required
8221          * to be 16-byte aligned.  Also align the virtual memory as each
8222          * maibox is copied into the bmbx mailbox region before issuing the
8223          * command to the port.
8224          */
8225         phba->sli4_hba.bmbx.dmabuf = dmabuf;
8226         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
8227
8228         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
8229                                               LPFC_ALIGN_16_BYTE);
8230         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
8231                                               LPFC_ALIGN_16_BYTE);
8232
8233         /*
8234          * Set the high and low physical addresses now.  The SLI4 alignment
8235          * requirement is 16 bytes and the mailbox is posted to the port
8236          * as two 30-bit addresses.  The other data is a bit marking whether
8237          * the 30-bit address is the high or low address.
8238          * Upcast bmbx aphys to 64bits so shift instruction compiles
8239          * clean on 32 bit machines.
8240          */
8241         dma_address = &phba->sli4_hba.bmbx.dma_address;
8242         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
8243         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
8244         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
8245                                            LPFC_BMBX_BIT1_ADDR_HI);
8246
8247         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
8248         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
8249                                            LPFC_BMBX_BIT1_ADDR_LO);
8250         return 0;
8251 }
8252
8253 /**
8254  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
8255  * @phba: pointer to lpfc hba data structure.
8256  *
8257  * This routine is invoked to teardown the bootstrap mailbox
8258  * region and release all host resources. This routine requires
8259  * the caller to ensure all mailbox commands recovered, no
8260  * additional mailbox comands are sent, and interrupts are disabled
8261  * before calling this routine.
8262  *
8263  **/
8264 static void
8265 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
8266 {
8267         dma_free_coherent(&phba->pcidev->dev,
8268                           phba->sli4_hba.bmbx.bmbx_size,
8269                           phba->sli4_hba.bmbx.dmabuf->virt,
8270                           phba->sli4_hba.bmbx.dmabuf->phys);
8271
8272         kfree(phba->sli4_hba.bmbx.dmabuf);
8273         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
8274 }
8275
8276 static const char * const lpfc_topo_to_str[] = {
8277         "Loop then P2P",
8278         "Loopback",
8279         "P2P Only",
8280         "Unsupported",
8281         "Loop Only",
8282         "Unsupported",
8283         "P2P then Loop",
8284 };
8285
8286 /**
8287  * lpfc_map_topology - Map the topology read from READ_CONFIG
8288  * @phba: pointer to lpfc hba data structure.
8289  * @rdconf: pointer to read config data
8290  *
8291  * This routine is invoked to map the topology values as read
8292  * from the read config mailbox command. If the persistent
8293  * topology feature is supported, the firmware will provide the
8294  * saved topology information to be used in INIT_LINK
8295  *
8296  **/
8297 #define LINK_FLAGS_DEF  0x0
8298 #define LINK_FLAGS_P2P  0x1
8299 #define LINK_FLAGS_LOOP 0x2
8300 static void
8301 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
8302 {
8303         u8 ptv, tf, pt;
8304
8305         ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
8306         tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
8307         pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
8308
8309         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8310                         "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
8311                          ptv, tf, pt);
8312         if (!ptv) {
8313                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8314                                 "2019 FW does not support persistent topology "
8315                                 "Using driver parameter defined value [%s]",
8316                                 lpfc_topo_to_str[phba->cfg_topology]);
8317                 return;
8318         }
8319         /* FW supports persistent topology - override module parameter value */
8320         phba->hba_flag |= HBA_PERSISTENT_TOPO;
8321         switch (phba->pcidev->device) {
8322         case PCI_DEVICE_ID_LANCER_G7_FC:
8323         case PCI_DEVICE_ID_LANCER_G6_FC:
8324                 if (!tf) {
8325                         phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
8326                                         ? FLAGS_TOPOLOGY_MODE_LOOP
8327                                         : FLAGS_TOPOLOGY_MODE_PT_PT);
8328                 } else {
8329                         phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
8330                 }
8331                 break;
8332         default:        /* G5 */
8333                 if (tf) {
8334                         /* If topology failover set - pt is '0' or '1' */
8335                         phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
8336                                               FLAGS_TOPOLOGY_MODE_LOOP_PT);
8337                 } else {
8338                         phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
8339                                         ? FLAGS_TOPOLOGY_MODE_PT_PT
8340                                         : FLAGS_TOPOLOGY_MODE_LOOP);
8341                 }
8342                 break;
8343         }
8344         if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
8345                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8346                                 "2020 Using persistent topology value [%s]",
8347                                 lpfc_topo_to_str[phba->cfg_topology]);
8348         } else {
8349                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8350                                 "2021 Invalid topology values from FW "
8351                                 "Using driver parameter defined value [%s]",
8352                                 lpfc_topo_to_str[phba->cfg_topology]);
8353         }
8354 }
8355
8356 /**
8357  * lpfc_sli4_read_config - Get the config parameters.
8358  * @phba: pointer to lpfc hba data structure.
8359  *
8360  * This routine is invoked to read the configuration parameters from the HBA.
8361  * The configuration parameters are used to set the base and maximum values
8362  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
8363  * allocation for the port.
8364  *
8365  * Return codes
8366  *      0 - successful
8367  *      -ENOMEM - No available memory
8368  *      -EIO - The mailbox failed to complete successfully.
8369  **/
8370 int
8371 lpfc_sli4_read_config(struct lpfc_hba *phba)
8372 {
8373         LPFC_MBOXQ_t *pmb;
8374         struct lpfc_mbx_read_config *rd_config;
8375         union  lpfc_sli4_cfg_shdr *shdr;
8376         uint32_t shdr_status, shdr_add_status;
8377         struct lpfc_mbx_get_func_cfg *get_func_cfg;
8378         struct lpfc_rsrc_desc_fcfcoe *desc;
8379         char *pdesc_0;
8380         uint16_t forced_link_speed;
8381         uint32_t if_type, qmin;
8382         int length, i, rc = 0, rc2;
8383
8384         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8385         if (!pmb) {
8386                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8387                                 "2011 Unable to allocate memory for issuing "
8388                                 "SLI_CONFIG_SPECIAL mailbox command\n");
8389                 return -ENOMEM;
8390         }
8391
8392         lpfc_read_config(phba, pmb);
8393
8394         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8395         if (rc != MBX_SUCCESS) {
8396                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8397                         "2012 Mailbox failed , mbxCmd x%x "
8398                         "READ_CONFIG, mbxStatus x%x\n",
8399                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
8400                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
8401                 rc = -EIO;
8402         } else {
8403                 rd_config = &pmb->u.mqe.un.rd_config;
8404                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
8405                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
8406                         phba->sli4_hba.lnk_info.lnk_tp =
8407                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
8408                         phba->sli4_hba.lnk_info.lnk_no =
8409                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
8410                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8411                                         "3081 lnk_type:%d, lnk_numb:%d\n",
8412                                         phba->sli4_hba.lnk_info.lnk_tp,
8413                                         phba->sli4_hba.lnk_info.lnk_no);
8414                 } else
8415                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8416                                         "3082 Mailbox (x%x) returned ldv:x0\n",
8417                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
8418                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
8419                         phba->bbcredit_support = 1;
8420                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
8421                 }
8422
8423                 phba->sli4_hba.conf_trunk =
8424                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
8425                 phba->sli4_hba.extents_in_use =
8426                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
8427                 phba->sli4_hba.max_cfg_param.max_xri =
8428                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
8429                 /* Reduce resource usage in kdump environment */
8430                 if (is_kdump_kernel() &&
8431                     phba->sli4_hba.max_cfg_param.max_xri > 512)
8432                         phba->sli4_hba.max_cfg_param.max_xri = 512;
8433                 phba->sli4_hba.max_cfg_param.xri_base =
8434                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
8435                 phba->sli4_hba.max_cfg_param.max_vpi =
8436                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
8437                 /* Limit the max we support */
8438                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
8439                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
8440                 phba->sli4_hba.max_cfg_param.vpi_base =
8441                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
8442                 phba->sli4_hba.max_cfg_param.max_rpi =
8443                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
8444                 phba->sli4_hba.max_cfg_param.rpi_base =
8445                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
8446                 phba->sli4_hba.max_cfg_param.max_vfi =
8447                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
8448                 phba->sli4_hba.max_cfg_param.vfi_base =
8449                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
8450                 phba->sli4_hba.max_cfg_param.max_fcfi =
8451                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
8452                 phba->sli4_hba.max_cfg_param.max_eq =
8453                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
8454                 phba->sli4_hba.max_cfg_param.max_rq =
8455                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
8456                 phba->sli4_hba.max_cfg_param.max_wq =
8457                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
8458                 phba->sli4_hba.max_cfg_param.max_cq =
8459                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
8460                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
8461                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
8462                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
8463                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
8464                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
8465                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
8466                 phba->max_vports = phba->max_vpi;
8467                 lpfc_map_topology(phba, rd_config);
8468                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8469                                 "2003 cfg params Extents? %d "
8470                                 "XRI(B:%d M:%d), "
8471                                 "VPI(B:%d M:%d) "
8472                                 "VFI(B:%d M:%d) "
8473                                 "RPI(B:%d M:%d) "
8474                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
8475                                 phba->sli4_hba.extents_in_use,
8476                                 phba->sli4_hba.max_cfg_param.xri_base,
8477                                 phba->sli4_hba.max_cfg_param.max_xri,
8478                                 phba->sli4_hba.max_cfg_param.vpi_base,
8479                                 phba->sli4_hba.max_cfg_param.max_vpi,
8480                                 phba->sli4_hba.max_cfg_param.vfi_base,
8481                                 phba->sli4_hba.max_cfg_param.max_vfi,
8482                                 phba->sli4_hba.max_cfg_param.rpi_base,
8483                                 phba->sli4_hba.max_cfg_param.max_rpi,
8484                                 phba->sli4_hba.max_cfg_param.max_fcfi,
8485                                 phba->sli4_hba.max_cfg_param.max_eq,
8486                                 phba->sli4_hba.max_cfg_param.max_cq,
8487                                 phba->sli4_hba.max_cfg_param.max_wq,
8488                                 phba->sli4_hba.max_cfg_param.max_rq);
8489
8490                 /*
8491                  * Calculate queue resources based on how
8492                  * many WQ/CQ/EQs are available.
8493                  */
8494                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
8495                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
8496                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
8497                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
8498                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
8499                 /*
8500                  * Whats left after this can go toward NVME / FCP.
8501                  * The minus 4 accounts for ELS, NVME LS, MBOX
8502                  * plus one extra. When configured for
8503                  * NVMET, FCP io channel WQs are not created.
8504                  */
8505                 qmin -= 4;
8506
8507                 /* Check to see if there is enough for NVME */
8508                 if ((phba->cfg_irq_chann > qmin) ||
8509                     (phba->cfg_hdw_queue > qmin)) {
8510                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8511                                         "2005 Reducing Queues: "
8512                                         "WQ %d CQ %d EQ %d: min %d: "
8513                                         "IRQ %d HDWQ %d\n",
8514                                         phba->sli4_hba.max_cfg_param.max_wq,
8515                                         phba->sli4_hba.max_cfg_param.max_cq,
8516                                         phba->sli4_hba.max_cfg_param.max_eq,
8517                                         qmin, phba->cfg_irq_chann,
8518                                         phba->cfg_hdw_queue);
8519
8520                         if (phba->cfg_irq_chann > qmin)
8521                                 phba->cfg_irq_chann = qmin;
8522                         if (phba->cfg_hdw_queue > qmin)
8523                                 phba->cfg_hdw_queue = qmin;
8524                 }
8525         }
8526
8527         if (rc)
8528                 goto read_cfg_out;
8529
8530         /* Update link speed if forced link speed is supported */
8531         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8532         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8533                 forced_link_speed =
8534                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8535                 if (forced_link_speed) {
8536                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8537
8538                         switch (forced_link_speed) {
8539                         case LINK_SPEED_1G:
8540                                 phba->cfg_link_speed =
8541                                         LPFC_USER_LINK_SPEED_1G;
8542                                 break;
8543                         case LINK_SPEED_2G:
8544                                 phba->cfg_link_speed =
8545                                         LPFC_USER_LINK_SPEED_2G;
8546                                 break;
8547                         case LINK_SPEED_4G:
8548                                 phba->cfg_link_speed =
8549                                         LPFC_USER_LINK_SPEED_4G;
8550                                 break;
8551                         case LINK_SPEED_8G:
8552                                 phba->cfg_link_speed =
8553                                         LPFC_USER_LINK_SPEED_8G;
8554                                 break;
8555                         case LINK_SPEED_10G:
8556                                 phba->cfg_link_speed =
8557                                         LPFC_USER_LINK_SPEED_10G;
8558                                 break;
8559                         case LINK_SPEED_16G:
8560                                 phba->cfg_link_speed =
8561                                         LPFC_USER_LINK_SPEED_16G;
8562                                 break;
8563                         case LINK_SPEED_32G:
8564                                 phba->cfg_link_speed =
8565                                         LPFC_USER_LINK_SPEED_32G;
8566                                 break;
8567                         case LINK_SPEED_64G:
8568                                 phba->cfg_link_speed =
8569                                         LPFC_USER_LINK_SPEED_64G;
8570                                 break;
8571                         case 0xffff:
8572                                 phba->cfg_link_speed =
8573                                         LPFC_USER_LINK_SPEED_AUTO;
8574                                 break;
8575                         default:
8576                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8577                                                 "0047 Unrecognized link "
8578                                                 "speed : %d\n",
8579                                                 forced_link_speed);
8580                                 phba->cfg_link_speed =
8581                                         LPFC_USER_LINK_SPEED_AUTO;
8582                         }
8583                 }
8584         }
8585
8586         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
8587         length = phba->sli4_hba.max_cfg_param.max_xri -
8588                         lpfc_sli4_get_els_iocb_cnt(phba);
8589         if (phba->cfg_hba_queue_depth > length) {
8590                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8591                                 "3361 HBA queue depth changed from %d to %d\n",
8592                                 phba->cfg_hba_queue_depth, length);
8593                 phba->cfg_hba_queue_depth = length;
8594         }
8595
8596         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8597             LPFC_SLI_INTF_IF_TYPE_2)
8598                 goto read_cfg_out;
8599
8600         /* get the pf# and vf# for SLI4 if_type 2 port */
8601         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8602                   sizeof(struct lpfc_sli4_cfg_mhdr));
8603         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8604                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8605                          length, LPFC_SLI4_MBX_EMBED);
8606
8607         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8608         shdr = (union lpfc_sli4_cfg_shdr *)
8609                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8610         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8611         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8612         if (rc2 || shdr_status || shdr_add_status) {
8613                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8614                                 "3026 Mailbox failed , mbxCmd x%x "
8615                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8616                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8617                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8618                 goto read_cfg_out;
8619         }
8620
8621         /* search for fc_fcoe resrouce descriptor */
8622         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8623
8624         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8625         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8626         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8627         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8628                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8629         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8630                 goto read_cfg_out;
8631
8632         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8633                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8634                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8635                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8636                         phba->sli4_hba.iov.pf_number =
8637                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8638                         phba->sli4_hba.iov.vf_number =
8639                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8640                         break;
8641                 }
8642         }
8643
8644         if (i < LPFC_RSRC_DESC_MAX_NUM)
8645                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8646                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8647                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8648                                 phba->sli4_hba.iov.vf_number);
8649         else
8650                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8651                                 "3028 GET_FUNCTION_CONFIG: failed to find "
8652                                 "Resource Descriptor:x%x\n",
8653                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
8654
8655 read_cfg_out:
8656         mempool_free(pmb, phba->mbox_mem_pool);
8657         return rc;
8658 }
8659
8660 /**
8661  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8662  * @phba: pointer to lpfc hba data structure.
8663  *
8664  * This routine is invoked to setup the port-side endian order when
8665  * the port if_type is 0.  This routine has no function for other
8666  * if_types.
8667  *
8668  * Return codes
8669  *      0 - successful
8670  *      -ENOMEM - No available memory
8671  *      -EIO - The mailbox failed to complete successfully.
8672  **/
8673 static int
8674 lpfc_setup_endian_order(struct lpfc_hba *phba)
8675 {
8676         LPFC_MBOXQ_t *mboxq;
8677         uint32_t if_type, rc = 0;
8678         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8679                                       HOST_ENDIAN_HIGH_WORD1};
8680
8681         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8682         switch (if_type) {
8683         case LPFC_SLI_INTF_IF_TYPE_0:
8684                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8685                                                        GFP_KERNEL);
8686                 if (!mboxq) {
8687                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8688                                         "0492 Unable to allocate memory for "
8689                                         "issuing SLI_CONFIG_SPECIAL mailbox "
8690                                         "command\n");
8691                         return -ENOMEM;
8692                 }
8693
8694                 /*
8695                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8696                  * two words to contain special data values and no other data.
8697                  */
8698                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8699                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8700                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8701                 if (rc != MBX_SUCCESS) {
8702                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8703                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8704                                         "failed with status x%x\n",
8705                                         rc);
8706                         rc = -EIO;
8707                 }
8708                 mempool_free(mboxq, phba->mbox_mem_pool);
8709                 break;
8710         case LPFC_SLI_INTF_IF_TYPE_6:
8711         case LPFC_SLI_INTF_IF_TYPE_2:
8712         case LPFC_SLI_INTF_IF_TYPE_1:
8713         default:
8714                 break;
8715         }
8716         return rc;
8717 }
8718
8719 /**
8720  * lpfc_sli4_queue_verify - Verify and update EQ counts
8721  * @phba: pointer to lpfc hba data structure.
8722  *
8723  * This routine is invoked to check the user settable queue counts for EQs.
8724  * After this routine is called the counts will be set to valid values that
8725  * adhere to the constraints of the system's interrupt vectors and the port's
8726  * queue resources.
8727  *
8728  * Return codes
8729  *      0 - successful
8730  *      -ENOMEM - No available memory
8731  **/
8732 static int
8733 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8734 {
8735         /*
8736          * Sanity check for configured queue parameters against the run-time
8737          * device parameters
8738          */
8739
8740         if (phba->nvmet_support) {
8741                 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
8742                         phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
8743                 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8744                         phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8745         }
8746
8747         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8748                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
8749                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
8750                         phba->cfg_nvmet_mrq);
8751
8752         /* Get EQ depth from module parameter, fake the default for now */
8753         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8754         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8755
8756         /* Get CQ depth from module parameter, fake the default for now */
8757         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8758         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8759         return 0;
8760 }
8761
8762 static int
8763 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
8764 {
8765         struct lpfc_queue *qdesc;
8766         u32 wqesize;
8767         int cpu;
8768
8769         cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
8770         /* Create Fast Path IO CQs */
8771         if (phba->enab_exp_wqcq_pages)
8772                 /* Increase the CQ size when WQEs contain an embedded cdb */
8773                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8774                                               phba->sli4_hba.cq_esize,
8775                                               LPFC_CQE_EXP_COUNT, cpu);
8776
8777         else
8778                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8779                                               phba->sli4_hba.cq_esize,
8780                                               phba->sli4_hba.cq_ecount, cpu);
8781         if (!qdesc) {
8782                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8783                         "0499 Failed allocate fast-path IO CQ (%d)\n", idx);
8784                 return 1;
8785         }
8786         qdesc->qe_valid = 1;
8787         qdesc->hdwq = idx;
8788         qdesc->chann = cpu;
8789         phba->sli4_hba.hdwq[idx].io_cq = qdesc;
8790
8791         /* Create Fast Path IO WQs */
8792         if (phba->enab_exp_wqcq_pages) {
8793                 /* Increase the WQ size when WQEs contain an embedded cdb */
8794                 wqesize = (phba->fcp_embed_io) ?
8795                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8796                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8797                                               wqesize,
8798                                               LPFC_WQE_EXP_COUNT, cpu);
8799         } else
8800                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8801                                               phba->sli4_hba.wq_esize,
8802                                               phba->sli4_hba.wq_ecount, cpu);
8803
8804         if (!qdesc) {
8805                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8806                                 "0503 Failed allocate fast-path IO WQ (%d)\n",
8807                                 idx);
8808                 return 1;
8809         }
8810         qdesc->hdwq = idx;
8811         qdesc->chann = cpu;
8812         phba->sli4_hba.hdwq[idx].io_wq = qdesc;
8813         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8814         return 0;
8815 }
8816
8817 /**
8818  * lpfc_sli4_queue_create - Create all the SLI4 queues
8819  * @phba: pointer to lpfc hba data structure.
8820  *
8821  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8822  * operation. For each SLI4 queue type, the parameters such as queue entry
8823  * count (queue depth) shall be taken from the module parameter. For now,
8824  * we just use some constant number as place holder.
8825  *
8826  * Return codes
8827  *      0 - successful
8828  *      -ENOMEM - No availble memory
8829  *      -EIO - The mailbox failed to complete successfully.
8830  **/
8831 int
8832 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8833 {
8834         struct lpfc_queue *qdesc;
8835         int idx, cpu, eqcpu;
8836         struct lpfc_sli4_hdw_queue *qp;
8837         struct lpfc_vector_map_info *cpup;
8838         struct lpfc_vector_map_info *eqcpup;
8839         struct lpfc_eq_intr_info *eqi;
8840
8841         /*
8842          * Create HBA Record arrays.
8843          * Both NVME and FCP will share that same vectors / EQs
8844          */
8845         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8846         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8847         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8848         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8849         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8850         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8851         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8852         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8853         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8854         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8855
8856         if (!phba->sli4_hba.hdwq) {
8857                 phba->sli4_hba.hdwq = kcalloc(
8858                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
8859                         GFP_KERNEL);
8860                 if (!phba->sli4_hba.hdwq) {
8861                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8862                                         "6427 Failed allocate memory for "
8863                                         "fast-path Hardware Queue array\n");
8864                         goto out_error;
8865                 }
8866                 /* Prepare hardware queues to take IO buffers */
8867                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8868                         qp = &phba->sli4_hba.hdwq[idx];
8869                         spin_lock_init(&qp->io_buf_list_get_lock);
8870                         spin_lock_init(&qp->io_buf_list_put_lock);
8871                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
8872                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
8873                         qp->get_io_bufs = 0;
8874                         qp->put_io_bufs = 0;
8875                         qp->total_io_bufs = 0;
8876                         spin_lock_init(&qp->abts_io_buf_list_lock);
8877                         INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
8878                         qp->abts_scsi_io_bufs = 0;
8879                         qp->abts_nvme_io_bufs = 0;
8880                         INIT_LIST_HEAD(&qp->sgl_list);
8881                         INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
8882                         spin_lock_init(&qp->hdwq_lock);
8883                 }
8884         }
8885
8886         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8887                 if (phba->nvmet_support) {
8888                         phba->sli4_hba.nvmet_cqset = kcalloc(
8889                                         phba->cfg_nvmet_mrq,
8890                                         sizeof(struct lpfc_queue *),
8891                                         GFP_KERNEL);
8892                         if (!phba->sli4_hba.nvmet_cqset) {
8893                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8894                                         "3121 Fail allocate memory for "
8895                                         "fast-path CQ set array\n");
8896                                 goto out_error;
8897                         }
8898                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8899                                         phba->cfg_nvmet_mrq,
8900                                         sizeof(struct lpfc_queue *),
8901                                         GFP_KERNEL);
8902                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8903                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8904                                         "3122 Fail allocate memory for "
8905                                         "fast-path RQ set hdr array\n");
8906                                 goto out_error;
8907                         }
8908                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8909                                         phba->cfg_nvmet_mrq,
8910                                         sizeof(struct lpfc_queue *),
8911                                         GFP_KERNEL);
8912                         if (!phba->sli4_hba.nvmet_mrq_data) {
8913                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8914                                         "3124 Fail allocate memory for "
8915                                         "fast-path RQ set data array\n");
8916                                 goto out_error;
8917                         }
8918                 }
8919         }
8920
8921         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8922
8923         /* Create HBA Event Queues (EQs) */
8924         for_each_present_cpu(cpu) {
8925                 /* We only want to create 1 EQ per vector, even though
8926                  * multiple CPUs might be using that vector. so only
8927                  * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
8928                  */
8929                 cpup = &phba->sli4_hba.cpu_map[cpu];
8930                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
8931                         continue;
8932
8933                 /* Get a ptr to the Hardware Queue associated with this CPU */
8934                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
8935
8936                 /* Allocate an EQ */
8937                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8938                                               phba->sli4_hba.eq_esize,
8939                                               phba->sli4_hba.eq_ecount, cpu);
8940                 if (!qdesc) {
8941                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8942                                         "0497 Failed allocate EQ (%d)\n",
8943                                         cpup->hdwq);
8944                         goto out_error;
8945                 }
8946                 qdesc->qe_valid = 1;
8947                 qdesc->hdwq = cpup->hdwq;
8948                 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
8949                 qdesc->last_cpu = qdesc->chann;
8950
8951                 /* Save the allocated EQ in the Hardware Queue */
8952                 qp->hba_eq = qdesc;
8953
8954                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
8955                 list_add(&qdesc->cpu_list, &eqi->list);
8956         }
8957
8958         /* Now we need to populate the other Hardware Queues, that share
8959          * an IRQ vector, with the associated EQ ptr.
8960          */
8961         for_each_present_cpu(cpu) {
8962                 cpup = &phba->sli4_hba.cpu_map[cpu];
8963
8964                 /* Check for EQ already allocated in previous loop */
8965                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
8966                         continue;
8967
8968                 /* Check for multiple CPUs per hdwq */
8969                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
8970                 if (qp->hba_eq)
8971                         continue;
8972
8973                 /* We need to share an EQ for this hdwq */
8974                 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
8975                 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
8976                 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
8977         }
8978
8979         /* Allocate IO Path SLI4 CQ/WQs */
8980         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8981                 if (lpfc_alloc_io_wq_cq(phba, idx))
8982                         goto out_error;
8983         }
8984
8985         if (phba->nvmet_support) {
8986                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8987                         cpu = lpfc_find_cpu_handle(phba, idx,
8988                                                    LPFC_FIND_BY_HDWQ);
8989                         qdesc = lpfc_sli4_queue_alloc(phba,
8990                                                       LPFC_DEFAULT_PAGE_SIZE,
8991                                                       phba->sli4_hba.cq_esize,
8992                                                       phba->sli4_hba.cq_ecount,
8993                                                       cpu);
8994                         if (!qdesc) {
8995                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8996                                                 "3142 Failed allocate NVME "
8997                                                 "CQ Set (%d)\n", idx);
8998                                 goto out_error;
8999                         }
9000                         qdesc->qe_valid = 1;
9001                         qdesc->hdwq = idx;
9002                         qdesc->chann = cpu;
9003                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
9004                 }
9005         }
9006
9007         /*
9008          * Create Slow Path Completion Queues (CQs)
9009          */
9010
9011         cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
9012         /* Create slow-path Mailbox Command Complete Queue */
9013         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9014                                       phba->sli4_hba.cq_esize,
9015                                       phba->sli4_hba.cq_ecount, cpu);
9016         if (!qdesc) {
9017                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9018                                 "0500 Failed allocate slow-path mailbox CQ\n");
9019                 goto out_error;
9020         }
9021         qdesc->qe_valid = 1;
9022         phba->sli4_hba.mbx_cq = qdesc;
9023
9024         /* Create slow-path ELS Complete Queue */
9025         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9026                                       phba->sli4_hba.cq_esize,
9027                                       phba->sli4_hba.cq_ecount, cpu);
9028         if (!qdesc) {
9029                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9030                                 "0501 Failed allocate slow-path ELS CQ\n");
9031                 goto out_error;
9032         }
9033         qdesc->qe_valid = 1;
9034         qdesc->chann = cpu;
9035         phba->sli4_hba.els_cq = qdesc;
9036
9037
9038         /*
9039          * Create Slow Path Work Queues (WQs)
9040          */
9041
9042         /* Create Mailbox Command Queue */
9043
9044         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9045                                       phba->sli4_hba.mq_esize,
9046                                       phba->sli4_hba.mq_ecount, cpu);
9047         if (!qdesc) {
9048                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9049                                 "0505 Failed allocate slow-path MQ\n");
9050                 goto out_error;
9051         }
9052         qdesc->chann = cpu;
9053         phba->sli4_hba.mbx_wq = qdesc;
9054
9055         /*
9056          * Create ELS Work Queues
9057          */
9058
9059         /* Create slow-path ELS Work Queue */
9060         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9061                                       phba->sli4_hba.wq_esize,
9062                                       phba->sli4_hba.wq_ecount, cpu);
9063         if (!qdesc) {
9064                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9065                                 "0504 Failed allocate slow-path ELS WQ\n");
9066                 goto out_error;
9067         }
9068         qdesc->chann = cpu;
9069         phba->sli4_hba.els_wq = qdesc;
9070         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9071
9072         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9073                 /* Create NVME LS Complete Queue */
9074                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9075                                               phba->sli4_hba.cq_esize,
9076                                               phba->sli4_hba.cq_ecount, cpu);
9077                 if (!qdesc) {
9078                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9079                                         "6079 Failed allocate NVME LS CQ\n");
9080                         goto out_error;
9081                 }
9082                 qdesc->chann = cpu;
9083                 qdesc->qe_valid = 1;
9084                 phba->sli4_hba.nvmels_cq = qdesc;
9085
9086                 /* Create NVME LS Work Queue */
9087                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9088                                               phba->sli4_hba.wq_esize,
9089                                               phba->sli4_hba.wq_ecount, cpu);
9090                 if (!qdesc) {
9091                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9092                                         "6080 Failed allocate NVME LS WQ\n");
9093                         goto out_error;
9094                 }
9095                 qdesc->chann = cpu;
9096                 phba->sli4_hba.nvmels_wq = qdesc;
9097                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
9098         }
9099
9100         /*
9101          * Create Receive Queue (RQ)
9102          */
9103
9104         /* Create Receive Queue for header */
9105         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9106                                       phba->sli4_hba.rq_esize,
9107                                       phba->sli4_hba.rq_ecount, cpu);
9108         if (!qdesc) {
9109                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9110                                 "0506 Failed allocate receive HRQ\n");
9111                 goto out_error;
9112         }
9113         phba->sli4_hba.hdr_rq = qdesc;
9114
9115         /* Create Receive Queue for data */
9116         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
9117                                       phba->sli4_hba.rq_esize,
9118                                       phba->sli4_hba.rq_ecount, cpu);
9119         if (!qdesc) {
9120                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9121                                 "0507 Failed allocate receive DRQ\n");
9122                 goto out_error;
9123         }
9124         phba->sli4_hba.dat_rq = qdesc;
9125
9126         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
9127             phba->nvmet_support) {
9128                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9129                         cpu = lpfc_find_cpu_handle(phba, idx,
9130                                                    LPFC_FIND_BY_HDWQ);
9131                         /* Create NVMET Receive Queue for header */
9132                         qdesc = lpfc_sli4_queue_alloc(phba,
9133                                                       LPFC_DEFAULT_PAGE_SIZE,
9134                                                       phba->sli4_hba.rq_esize,
9135                                                       LPFC_NVMET_RQE_DEF_COUNT,
9136                                                       cpu);
9137                         if (!qdesc) {
9138                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9139                                                 "3146 Failed allocate "
9140                                                 "receive HRQ\n");
9141                                 goto out_error;
9142                         }
9143                         qdesc->hdwq = idx;
9144                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
9145
9146                         /* Only needed for header of RQ pair */
9147                         qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
9148                                                    GFP_KERNEL,
9149                                                    cpu_to_node(cpu));
9150                         if (qdesc->rqbp == NULL) {
9151                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9152                                                 "6131 Failed allocate "
9153                                                 "Header RQBP\n");
9154                                 goto out_error;
9155                         }
9156
9157                         /* Put list in known state in case driver load fails. */
9158                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
9159
9160                         /* Create NVMET Receive Queue for data */
9161                         qdesc = lpfc_sli4_queue_alloc(phba,
9162                                                       LPFC_DEFAULT_PAGE_SIZE,
9163                                                       phba->sli4_hba.rq_esize,
9164                                                       LPFC_NVMET_RQE_DEF_COUNT,
9165                                                       cpu);
9166                         if (!qdesc) {
9167                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9168                                                 "3156 Failed allocate "
9169                                                 "receive DRQ\n");
9170                                 goto out_error;
9171                         }
9172                         qdesc->hdwq = idx;
9173                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
9174                 }
9175         }
9176
9177         /* Clear NVME stats */
9178         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9179                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9180                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
9181                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
9182                 }
9183         }
9184
9185         /* Clear SCSI stats */
9186         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
9187                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9188                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
9189                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
9190                 }
9191         }
9192
9193         return 0;
9194
9195 out_error:
9196         lpfc_sli4_queue_destroy(phba);
9197         return -ENOMEM;
9198 }
9199
9200 static inline void
9201 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
9202 {
9203         if (*qp != NULL) {
9204                 lpfc_sli4_queue_free(*qp);
9205                 *qp = NULL;
9206         }
9207 }
9208
9209 static inline void
9210 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
9211 {
9212         int idx;
9213
9214         if (*qs == NULL)
9215                 return;
9216
9217         for (idx = 0; idx < max; idx++)
9218                 __lpfc_sli4_release_queue(&(*qs)[idx]);
9219
9220         kfree(*qs);
9221         *qs = NULL;
9222 }
9223
9224 static inline void
9225 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
9226 {
9227         struct lpfc_sli4_hdw_queue *hdwq;
9228         struct lpfc_queue *eq;
9229         uint32_t idx;
9230
9231         hdwq = phba->sli4_hba.hdwq;
9232
9233         /* Loop thru all Hardware Queues */
9234         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9235                 /* Free the CQ/WQ corresponding to the Hardware Queue */
9236                 lpfc_sli4_queue_free(hdwq[idx].io_cq);
9237                 lpfc_sli4_queue_free(hdwq[idx].io_wq);
9238                 hdwq[idx].io_cq = NULL;
9239                 hdwq[idx].io_wq = NULL;
9240                 if (phba->cfg_xpsgl && !phba->nvmet_support)
9241                         lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
9242                 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
9243         }
9244         /* Loop thru all IRQ vectors */
9245         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
9246                 /* Free the EQ corresponding to the IRQ vector */
9247                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
9248                 lpfc_sli4_queue_free(eq);
9249                 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
9250         }
9251 }
9252
9253 /**
9254  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
9255  * @phba: pointer to lpfc hba data structure.
9256  *
9257  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
9258  * operation.
9259  *
9260  * Return codes
9261  *      0 - successful
9262  *      -ENOMEM - No available memory
9263  *      -EIO - The mailbox failed to complete successfully.
9264  **/
9265 void
9266 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
9267 {
9268         /*
9269          * Set FREE_INIT before beginning to free the queues.
9270          * Wait until the users of queues to acknowledge to
9271          * release queues by clearing FREE_WAIT.
9272          */
9273         spin_lock_irq(&phba->hbalock);
9274         phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
9275         while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
9276                 spin_unlock_irq(&phba->hbalock);
9277                 msleep(20);
9278                 spin_lock_irq(&phba->hbalock);
9279         }
9280         spin_unlock_irq(&phba->hbalock);
9281
9282         lpfc_sli4_cleanup_poll_list(phba);
9283
9284         /* Release HBA eqs */
9285         if (phba->sli4_hba.hdwq)
9286                 lpfc_sli4_release_hdwq(phba);
9287
9288         if (phba->nvmet_support) {
9289                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
9290                                          phba->cfg_nvmet_mrq);
9291
9292                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
9293                                          phba->cfg_nvmet_mrq);
9294                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
9295                                          phba->cfg_nvmet_mrq);
9296         }
9297
9298         /* Release mailbox command work queue */
9299         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
9300
9301         /* Release ELS work queue */
9302         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
9303
9304         /* Release ELS work queue */
9305         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
9306
9307         /* Release unsolicited receive queue */
9308         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
9309         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
9310
9311         /* Release ELS complete queue */
9312         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
9313
9314         /* Release NVME LS complete queue */
9315         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
9316
9317         /* Release mailbox command complete queue */
9318         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
9319
9320         /* Everything on this list has been freed */
9321         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9322
9323         /* Done with freeing the queues */
9324         spin_lock_irq(&phba->hbalock);
9325         phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
9326         spin_unlock_irq(&phba->hbalock);
9327 }
9328
9329 int
9330 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
9331 {
9332         struct lpfc_rqb *rqbp;
9333         struct lpfc_dmabuf *h_buf;
9334         struct rqb_dmabuf *rqb_buffer;
9335
9336         rqbp = rq->rqbp;
9337         while (!list_empty(&rqbp->rqb_buffer_list)) {
9338                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
9339                                  struct lpfc_dmabuf, list);
9340
9341                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
9342                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
9343                 rqbp->buffer_count--;
9344         }
9345         return 1;
9346 }
9347
9348 static int
9349 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
9350         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
9351         int qidx, uint32_t qtype)
9352 {
9353         struct lpfc_sli_ring *pring;
9354         int rc;
9355
9356         if (!eq || !cq || !wq) {
9357                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9358                         "6085 Fast-path %s (%d) not allocated\n",
9359                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
9360                 return -ENOMEM;
9361         }
9362
9363         /* create the Cq first */
9364         rc = lpfc_cq_create(phba, cq, eq,
9365                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
9366         if (rc) {
9367                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9368                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
9369                         qidx, (uint32_t)rc);
9370                 return rc;
9371         }
9372
9373         if (qtype != LPFC_MBOX) {
9374                 /* Setup cq_map for fast lookup */
9375                 if (cq_map)
9376                         *cq_map = cq->queue_id;
9377
9378                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9379                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
9380                         qidx, cq->queue_id, qidx, eq->queue_id);
9381
9382                 /* create the wq */
9383                 rc = lpfc_wq_create(phba, wq, cq, qtype);
9384                 if (rc) {
9385                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9386                                 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
9387                                 qidx, (uint32_t)rc);
9388                         /* no need to tear down cq - caller will do so */
9389                         return rc;
9390                 }
9391
9392                 /* Bind this CQ/WQ to the NVME ring */
9393                 pring = wq->pring;
9394                 pring->sli.sli4.wqp = (void *)wq;
9395                 cq->pring = pring;
9396
9397                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9398                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
9399                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
9400         } else {
9401                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
9402                 if (rc) {
9403                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9404                                 "0539 Failed setup of slow-path MQ: "
9405                                 "rc = 0x%x\n", rc);
9406                         /* no need to tear down cq - caller will do so */
9407                         return rc;
9408                 }
9409
9410                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9411                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
9412                         phba->sli4_hba.mbx_wq->queue_id,
9413                         phba->sli4_hba.mbx_cq->queue_id);
9414         }
9415
9416         return 0;
9417 }
9418
9419 /**
9420  * lpfc_setup_cq_lookup - Setup the CQ lookup table
9421  * @phba: pointer to lpfc hba data structure.
9422  *
9423  * This routine will populate the cq_lookup table by all
9424  * available CQ queue_id's.
9425  **/
9426 static void
9427 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
9428 {
9429         struct lpfc_queue *eq, *childq;
9430         int qidx;
9431
9432         memset(phba->sli4_hba.cq_lookup, 0,
9433                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
9434         /* Loop thru all IRQ vectors */
9435         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9436                 /* Get the EQ corresponding to the IRQ vector */
9437                 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9438                 if (!eq)
9439                         continue;
9440                 /* Loop through all CQs associated with that EQ */
9441                 list_for_each_entry(childq, &eq->child_list, list) {
9442                         if (childq->queue_id > phba->sli4_hba.cq_max)
9443                                 continue;
9444                         if (childq->subtype == LPFC_IO)
9445                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
9446                                         childq;
9447                 }
9448         }
9449 }
9450
9451 /**
9452  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
9453  * @phba: pointer to lpfc hba data structure.
9454  *
9455  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
9456  * operation.
9457  *
9458  * Return codes
9459  *      0 - successful
9460  *      -ENOMEM - No available memory
9461  *      -EIO - The mailbox failed to complete successfully.
9462  **/
9463 int
9464 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
9465 {
9466         uint32_t shdr_status, shdr_add_status;
9467         union lpfc_sli4_cfg_shdr *shdr;
9468         struct lpfc_vector_map_info *cpup;
9469         struct lpfc_sli4_hdw_queue *qp;
9470         LPFC_MBOXQ_t *mboxq;
9471         int qidx, cpu;
9472         uint32_t length, usdelay;
9473         int rc = -ENOMEM;
9474
9475         /* Check for dual-ULP support */
9476         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9477         if (!mboxq) {
9478                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9479                                 "3249 Unable to allocate memory for "
9480                                 "QUERY_FW_CFG mailbox command\n");
9481                 return -ENOMEM;
9482         }
9483         length = (sizeof(struct lpfc_mbx_query_fw_config) -
9484                   sizeof(struct lpfc_sli4_cfg_mhdr));
9485         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9486                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
9487                          length, LPFC_SLI4_MBX_EMBED);
9488
9489         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9490
9491         shdr = (union lpfc_sli4_cfg_shdr *)
9492                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9493         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9494         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9495         if (shdr_status || shdr_add_status || rc) {
9496                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9497                                 "3250 QUERY_FW_CFG mailbox failed with status "
9498                                 "x%x add_status x%x, mbx status x%x\n",
9499                                 shdr_status, shdr_add_status, rc);
9500                 if (rc != MBX_TIMEOUT)
9501                         mempool_free(mboxq, phba->mbox_mem_pool);
9502                 rc = -ENXIO;
9503                 goto out_error;
9504         }
9505
9506         phba->sli4_hba.fw_func_mode =
9507                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9508         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9509         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9510         phba->sli4_hba.physical_port =
9511                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9512         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9513                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9514                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9515                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9516
9517         if (rc != MBX_TIMEOUT)
9518                 mempool_free(mboxq, phba->mbox_mem_pool);
9519
9520         /*
9521          * Set up HBA Event Queues (EQs)
9522          */
9523         qp = phba->sli4_hba.hdwq;
9524
9525         /* Set up HBA event queue */
9526         if (!qp) {
9527                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9528                                 "3147 Fast-path EQs not allocated\n");
9529                 rc = -ENOMEM;
9530                 goto out_error;
9531         }
9532
9533         /* Loop thru all IRQ vectors */
9534         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9535                 /* Create HBA Event Queues (EQs) in order */
9536                 for_each_present_cpu(cpu) {
9537                         cpup = &phba->sli4_hba.cpu_map[cpu];
9538
9539                         /* Look for the CPU thats using that vector with
9540                          * LPFC_CPU_FIRST_IRQ set.
9541                          */
9542                         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
9543                                 continue;
9544                         if (qidx != cpup->eq)
9545                                 continue;
9546
9547                         /* Create an EQ for that vector */
9548                         rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
9549                                             phba->cfg_fcp_imax);
9550                         if (rc) {
9551                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9552                                                 "0523 Failed setup of fast-path"
9553                                                 " EQ (%d), rc = 0x%x\n",
9554                                                 cpup->eq, (uint32_t)rc);
9555                                 goto out_destroy;
9556                         }
9557
9558                         /* Save the EQ for that vector in the hba_eq_hdl */
9559                         phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
9560                                 qp[cpup->hdwq].hba_eq;
9561
9562                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9563                                         "2584 HBA EQ setup: queue[%d]-id=%d\n",
9564                                         cpup->eq,
9565                                         qp[cpup->hdwq].hba_eq->queue_id);
9566                 }
9567         }
9568
9569         /* Loop thru all Hardware Queues */
9570         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9571                 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
9572                 cpup = &phba->sli4_hba.cpu_map[cpu];
9573
9574                 /* Create the CQ/WQ corresponding to the Hardware Queue */
9575                 rc = lpfc_create_wq_cq(phba,
9576                                        phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
9577                                        qp[qidx].io_cq,
9578                                        qp[qidx].io_wq,
9579                                        &phba->sli4_hba.hdwq[qidx].io_cq_map,
9580                                        qidx,
9581                                        LPFC_IO);
9582                 if (rc) {
9583                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9584                                         "0535 Failed to setup fastpath "
9585                                         "IO WQ/CQ (%d), rc = 0x%x\n",
9586                                         qidx, (uint32_t)rc);
9587                         goto out_destroy;
9588                 }
9589         }
9590
9591         /*
9592          * Set up Slow Path Complete Queues (CQs)
9593          */
9594
9595         /* Set up slow-path MBOX CQ/MQ */
9596
9597         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9598                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9599                                 "0528 %s not allocated\n",
9600                                 phba->sli4_hba.mbx_cq ?
9601                                 "Mailbox WQ" : "Mailbox CQ");
9602                 rc = -ENOMEM;
9603                 goto out_destroy;
9604         }
9605
9606         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9607                                phba->sli4_hba.mbx_cq,
9608                                phba->sli4_hba.mbx_wq,
9609                                NULL, 0, LPFC_MBOX);
9610         if (rc) {
9611                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9612                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9613                         (uint32_t)rc);
9614                 goto out_destroy;
9615         }
9616         if (phba->nvmet_support) {
9617                 if (!phba->sli4_hba.nvmet_cqset) {
9618                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9619                                         "3165 Fast-path NVME CQ Set "
9620                                         "array not allocated\n");
9621                         rc = -ENOMEM;
9622                         goto out_destroy;
9623                 }
9624                 if (phba->cfg_nvmet_mrq > 1) {
9625                         rc = lpfc_cq_create_set(phba,
9626                                         phba->sli4_hba.nvmet_cqset,
9627                                         qp,
9628                                         LPFC_WCQ, LPFC_NVMET);
9629                         if (rc) {
9630                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9631                                                 "3164 Failed setup of NVME CQ "
9632                                                 "Set, rc = 0x%x\n",
9633                                                 (uint32_t)rc);
9634                                 goto out_destroy;
9635                         }
9636                 } else {
9637                         /* Set up NVMET Receive Complete Queue */
9638                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9639                                             qp[0].hba_eq,
9640                                             LPFC_WCQ, LPFC_NVMET);
9641                         if (rc) {
9642                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9643                                                 "6089 Failed setup NVMET CQ: "
9644                                                 "rc = 0x%x\n", (uint32_t)rc);
9645                                 goto out_destroy;
9646                         }
9647                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9648
9649                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9650                                         "6090 NVMET CQ setup: cq-id=%d, "
9651                                         "parent eq-id=%d\n",
9652                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
9653                                         qp[0].hba_eq->queue_id);
9654                 }
9655         }
9656
9657         /* Set up slow-path ELS WQ/CQ */
9658         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9659                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9660                                 "0530 ELS %s not allocated\n",
9661                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
9662                 rc = -ENOMEM;
9663                 goto out_destroy;
9664         }
9665         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9666                                phba->sli4_hba.els_cq,
9667                                phba->sli4_hba.els_wq,
9668                                NULL, 0, LPFC_ELS);
9669         if (rc) {
9670                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9671                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9672                                 (uint32_t)rc);
9673                 goto out_destroy;
9674         }
9675         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9676                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9677                         phba->sli4_hba.els_wq->queue_id,
9678                         phba->sli4_hba.els_cq->queue_id);
9679
9680         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9681                 /* Set up NVME LS Complete Queue */
9682                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9683                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9684                                         "6091 LS %s not allocated\n",
9685                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9686                         rc = -ENOMEM;
9687                         goto out_destroy;
9688                 }
9689                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9690                                        phba->sli4_hba.nvmels_cq,
9691                                        phba->sli4_hba.nvmels_wq,
9692                                        NULL, 0, LPFC_NVME_LS);
9693                 if (rc) {
9694                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9695                                         "0526 Failed setup of NVVME LS WQ/CQ: "
9696                                         "rc = 0x%x\n", (uint32_t)rc);
9697                         goto out_destroy;
9698                 }
9699
9700                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9701                                 "6096 ELS WQ setup: wq-id=%d, "
9702                                 "parent cq-id=%d\n",
9703                                 phba->sli4_hba.nvmels_wq->queue_id,
9704                                 phba->sli4_hba.nvmels_cq->queue_id);
9705         }
9706
9707         /*
9708          * Create NVMET Receive Queue (RQ)
9709          */
9710         if (phba->nvmet_support) {
9711                 if ((!phba->sli4_hba.nvmet_cqset) ||
9712                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9713                     (!phba->sli4_hba.nvmet_mrq_data)) {
9714                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9715                                         "6130 MRQ CQ Queues not "
9716                                         "allocated\n");
9717                         rc = -ENOMEM;
9718                         goto out_destroy;
9719                 }
9720                 if (phba->cfg_nvmet_mrq > 1) {
9721                         rc = lpfc_mrq_create(phba,
9722                                              phba->sli4_hba.nvmet_mrq_hdr,
9723                                              phba->sli4_hba.nvmet_mrq_data,
9724                                              phba->sli4_hba.nvmet_cqset,
9725                                              LPFC_NVMET);
9726                         if (rc) {
9727                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9728                                                 "6098 Failed setup of NVMET "
9729                                                 "MRQ: rc = 0x%x\n",
9730                                                 (uint32_t)rc);
9731                                 goto out_destroy;
9732                         }
9733
9734                 } else {
9735                         rc = lpfc_rq_create(phba,
9736                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9737                                             phba->sli4_hba.nvmet_mrq_data[0],
9738                                             phba->sli4_hba.nvmet_cqset[0],
9739                                             LPFC_NVMET);
9740                         if (rc) {
9741                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9742                                                 "6057 Failed setup of NVMET "
9743                                                 "Receive Queue: rc = 0x%x\n",
9744                                                 (uint32_t)rc);
9745                                 goto out_destroy;
9746                         }
9747
9748                         lpfc_printf_log(
9749                                 phba, KERN_INFO, LOG_INIT,
9750                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9751                                 "dat-rq-id=%d parent cq-id=%d\n",
9752                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9753                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9754                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9755
9756                 }
9757         }
9758
9759         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9760                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9761                                 "0540 Receive Queue not allocated\n");
9762                 rc = -ENOMEM;
9763                 goto out_destroy;
9764         }
9765
9766         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9767                             phba->sli4_hba.els_cq, LPFC_USOL);
9768         if (rc) {
9769                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9770                                 "0541 Failed setup of Receive Queue: "
9771                                 "rc = 0x%x\n", (uint32_t)rc);
9772                 goto out_destroy;
9773         }
9774
9775         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9776                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9777                         "parent cq-id=%d\n",
9778                         phba->sli4_hba.hdr_rq->queue_id,
9779                         phba->sli4_hba.dat_rq->queue_id,
9780                         phba->sli4_hba.els_cq->queue_id);
9781
9782         if (phba->cfg_fcp_imax)
9783                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
9784         else
9785                 usdelay = 0;
9786
9787         for (qidx = 0; qidx < phba->cfg_irq_chann;
9788              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9789                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9790                                          usdelay);
9791
9792         if (phba->sli4_hba.cq_max) {
9793                 kfree(phba->sli4_hba.cq_lookup);
9794                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
9795                         sizeof(struct lpfc_queue *), GFP_KERNEL);
9796                 if (!phba->sli4_hba.cq_lookup) {
9797                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9798                                         "0549 Failed setup of CQ Lookup table: "
9799                                         "size 0x%x\n", phba->sli4_hba.cq_max);
9800                         rc = -ENOMEM;
9801                         goto out_destroy;
9802                 }
9803                 lpfc_setup_cq_lookup(phba);
9804         }
9805         return 0;
9806
9807 out_destroy:
9808         lpfc_sli4_queue_unset(phba);
9809 out_error:
9810         return rc;
9811 }
9812
9813 /**
9814  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9815  * @phba: pointer to lpfc hba data structure.
9816  *
9817  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9818  * operation.
9819  *
9820  * Return codes
9821  *      0 - successful
9822  *      -ENOMEM - No available memory
9823  *      -EIO - The mailbox failed to complete successfully.
9824  **/
9825 void
9826 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9827 {
9828         struct lpfc_sli4_hdw_queue *qp;
9829         struct lpfc_queue *eq;
9830         int qidx;
9831
9832         /* Unset mailbox command work queue */
9833         if (phba->sli4_hba.mbx_wq)
9834                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9835
9836         /* Unset NVME LS work queue */
9837         if (phba->sli4_hba.nvmels_wq)
9838                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9839
9840         /* Unset ELS work queue */
9841         if (phba->sli4_hba.els_wq)
9842                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9843
9844         /* Unset unsolicited receive queue */
9845         if (phba->sli4_hba.hdr_rq)
9846                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9847                                 phba->sli4_hba.dat_rq);
9848
9849         /* Unset mailbox command complete queue */
9850         if (phba->sli4_hba.mbx_cq)
9851                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9852
9853         /* Unset ELS complete queue */
9854         if (phba->sli4_hba.els_cq)
9855                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9856
9857         /* Unset NVME LS complete queue */
9858         if (phba->sli4_hba.nvmels_cq)
9859                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9860
9861         if (phba->nvmet_support) {
9862                 /* Unset NVMET MRQ queue */
9863                 if (phba->sli4_hba.nvmet_mrq_hdr) {
9864                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9865                                 lpfc_rq_destroy(
9866                                         phba,
9867                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
9868                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
9869                 }
9870
9871                 /* Unset NVMET CQ Set complete queue */
9872                 if (phba->sli4_hba.nvmet_cqset) {
9873                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9874                                 lpfc_cq_destroy(
9875                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
9876                 }
9877         }
9878
9879         /* Unset fast-path SLI4 queues */
9880         if (phba->sli4_hba.hdwq) {
9881                 /* Loop thru all Hardware Queues */
9882                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9883                         /* Destroy the CQ/WQ corresponding to Hardware Queue */
9884                         qp = &phba->sli4_hba.hdwq[qidx];
9885                         lpfc_wq_destroy(phba, qp->io_wq);
9886                         lpfc_cq_destroy(phba, qp->io_cq);
9887                 }
9888                 /* Loop thru all IRQ vectors */
9889                 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9890                         /* Destroy the EQ corresponding to the IRQ vector */
9891                         eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
9892                         lpfc_eq_destroy(phba, eq);
9893                 }
9894         }
9895
9896         kfree(phba->sli4_hba.cq_lookup);
9897         phba->sli4_hba.cq_lookup = NULL;
9898         phba->sli4_hba.cq_max = 0;
9899 }
9900
9901 /**
9902  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9903  * @phba: pointer to lpfc hba data structure.
9904  *
9905  * This routine is invoked to allocate and set up a pool of completion queue
9906  * events. The body of the completion queue event is a completion queue entry
9907  * CQE. For now, this pool is used for the interrupt service routine to queue
9908  * the following HBA completion queue events for the worker thread to process:
9909  *   - Mailbox asynchronous events
9910  *   - Receive queue completion unsolicited events
9911  * Later, this can be used for all the slow-path events.
9912  *
9913  * Return codes
9914  *      0 - successful
9915  *      -ENOMEM - No available memory
9916  **/
9917 static int
9918 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9919 {
9920         struct lpfc_cq_event *cq_event;
9921         int i;
9922
9923         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9924                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9925                 if (!cq_event)
9926                         goto out_pool_create_fail;
9927                 list_add_tail(&cq_event->list,
9928                               &phba->sli4_hba.sp_cqe_event_pool);
9929         }
9930         return 0;
9931
9932 out_pool_create_fail:
9933         lpfc_sli4_cq_event_pool_destroy(phba);
9934         return -ENOMEM;
9935 }
9936
9937 /**
9938  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9939  * @phba: pointer to lpfc hba data structure.
9940  *
9941  * This routine is invoked to free the pool of completion queue events at
9942  * driver unload time. Note that, it is the responsibility of the driver
9943  * cleanup routine to free all the outstanding completion-queue events
9944  * allocated from this pool back into the pool before invoking this routine
9945  * to destroy the pool.
9946  **/
9947 static void
9948 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9949 {
9950         struct lpfc_cq_event *cq_event, *next_cq_event;
9951
9952         list_for_each_entry_safe(cq_event, next_cq_event,
9953                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9954                 list_del(&cq_event->list);
9955                 kfree(cq_event);
9956         }
9957 }
9958
9959 /**
9960  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9961  * @phba: pointer to lpfc hba data structure.
9962  *
9963  * This routine is the lock free version of the API invoked to allocate a
9964  * completion-queue event from the free pool.
9965  *
9966  * Return: Pointer to the newly allocated completion-queue event if successful
9967  *         NULL otherwise.
9968  **/
9969 struct lpfc_cq_event *
9970 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9971 {
9972         struct lpfc_cq_event *cq_event = NULL;
9973
9974         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9975                          struct lpfc_cq_event, list);
9976         return cq_event;
9977 }
9978
9979 /**
9980  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9981  * @phba: pointer to lpfc hba data structure.
9982  *
9983  * This routine is the lock version of the API invoked to allocate a
9984  * completion-queue event from the free pool.
9985  *
9986  * Return: Pointer to the newly allocated completion-queue event if successful
9987  *         NULL otherwise.
9988  **/
9989 struct lpfc_cq_event *
9990 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9991 {
9992         struct lpfc_cq_event *cq_event;
9993         unsigned long iflags;
9994
9995         spin_lock_irqsave(&phba->hbalock, iflags);
9996         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9997         spin_unlock_irqrestore(&phba->hbalock, iflags);
9998         return cq_event;
9999 }
10000
10001 /**
10002  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10003  * @phba: pointer to lpfc hba data structure.
10004  * @cq_event: pointer to the completion queue event to be freed.
10005  *
10006  * This routine is the lock free version of the API invoked to release a
10007  * completion-queue event back into the free pool.
10008  **/
10009 void
10010 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10011                              struct lpfc_cq_event *cq_event)
10012 {
10013         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
10014 }
10015
10016 /**
10017  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
10018  * @phba: pointer to lpfc hba data structure.
10019  * @cq_event: pointer to the completion queue event to be freed.
10020  *
10021  * This routine is the lock version of the API invoked to release a
10022  * completion-queue event back into the free pool.
10023  **/
10024 void
10025 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
10026                            struct lpfc_cq_event *cq_event)
10027 {
10028         unsigned long iflags;
10029         spin_lock_irqsave(&phba->hbalock, iflags);
10030         __lpfc_sli4_cq_event_release(phba, cq_event);
10031         spin_unlock_irqrestore(&phba->hbalock, iflags);
10032 }
10033
10034 /**
10035  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
10036  * @phba: pointer to lpfc hba data structure.
10037  *
10038  * This routine is to free all the pending completion-queue events to the
10039  * back into the free pool for device reset.
10040  **/
10041 static void
10042 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
10043 {
10044         LIST_HEAD(cqelist);
10045         struct lpfc_cq_event *cqe;
10046         unsigned long iflags;
10047
10048         /* Retrieve all the pending WCQEs from pending WCQE lists */
10049         spin_lock_irqsave(&phba->hbalock, iflags);
10050         /* Pending FCP XRI abort events */
10051         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
10052                          &cqelist);
10053         /* Pending ELS XRI abort events */
10054         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10055                          &cqelist);
10056         /* Pending asynnc events */
10057         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
10058                          &cqelist);
10059         spin_unlock_irqrestore(&phba->hbalock, iflags);
10060
10061         while (!list_empty(&cqelist)) {
10062                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
10063                 lpfc_sli4_cq_event_release(phba, cqe);
10064         }
10065 }
10066
10067 /**
10068  * lpfc_pci_function_reset - Reset pci function.
10069  * @phba: pointer to lpfc hba data structure.
10070  *
10071  * This routine is invoked to request a PCI function reset. It will destroys
10072  * all resources assigned to the PCI function which originates this request.
10073  *
10074  * Return codes
10075  *      0 - successful
10076  *      -ENOMEM - No available memory
10077  *      -EIO - The mailbox failed to complete successfully.
10078  **/
10079 int
10080 lpfc_pci_function_reset(struct lpfc_hba *phba)
10081 {
10082         LPFC_MBOXQ_t *mboxq;
10083         uint32_t rc = 0, if_type;
10084         uint32_t shdr_status, shdr_add_status;
10085         uint32_t rdy_chk;
10086         uint32_t port_reset = 0;
10087         union lpfc_sli4_cfg_shdr *shdr;
10088         struct lpfc_register reg_data;
10089         uint16_t devid;
10090
10091         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10092         switch (if_type) {
10093         case LPFC_SLI_INTF_IF_TYPE_0:
10094                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10095                                                        GFP_KERNEL);
10096                 if (!mboxq) {
10097                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10098                                         "0494 Unable to allocate memory for "
10099                                         "issuing SLI_FUNCTION_RESET mailbox "
10100                                         "command\n");
10101                         return -ENOMEM;
10102                 }
10103
10104                 /* Setup PCI function reset mailbox-ioctl command */
10105                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10106                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
10107                                  LPFC_SLI4_MBX_EMBED);
10108                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10109                 shdr = (union lpfc_sli4_cfg_shdr *)
10110                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10111                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10112                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
10113                                          &shdr->response);
10114                 if (rc != MBX_TIMEOUT)
10115                         mempool_free(mboxq, phba->mbox_mem_pool);
10116                 if (shdr_status || shdr_add_status || rc) {
10117                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10118                                         "0495 SLI_FUNCTION_RESET mailbox "
10119                                         "failed with status x%x add_status x%x,"
10120                                         " mbx status x%x\n",
10121                                         shdr_status, shdr_add_status, rc);
10122                         rc = -ENXIO;
10123                 }
10124                 break;
10125         case LPFC_SLI_INTF_IF_TYPE_2:
10126         case LPFC_SLI_INTF_IF_TYPE_6:
10127 wait:
10128                 /*
10129                  * Poll the Port Status Register and wait for RDY for
10130                  * up to 30 seconds. If the port doesn't respond, treat
10131                  * it as an error.
10132                  */
10133                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
10134                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
10135                                 STATUSregaddr, &reg_data.word0)) {
10136                                 rc = -ENODEV;
10137                                 goto out;
10138                         }
10139                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
10140                                 break;
10141                         msleep(20);
10142                 }
10143
10144                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
10145                         phba->work_status[0] = readl(
10146                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
10147                         phba->work_status[1] = readl(
10148                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
10149                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10150                                         "2890 Port not ready, port status reg "
10151                                         "0x%x error 1=0x%x, error 2=0x%x\n",
10152                                         reg_data.word0,
10153                                         phba->work_status[0],
10154                                         phba->work_status[1]);
10155                         rc = -ENODEV;
10156                         goto out;
10157                 }
10158
10159                 if (!port_reset) {
10160                         /*
10161                          * Reset the port now
10162                          */
10163                         reg_data.word0 = 0;
10164                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
10165                                LPFC_SLIPORT_LITTLE_ENDIAN);
10166                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
10167                                LPFC_SLIPORT_INIT_PORT);
10168                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
10169                                CTRLregaddr);
10170                         /* flush */
10171                         pci_read_config_word(phba->pcidev,
10172                                              PCI_DEVICE_ID, &devid);
10173
10174                         port_reset = 1;
10175                         msleep(20);
10176                         goto wait;
10177                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
10178                         rc = -ENODEV;
10179                         goto out;
10180                 }
10181                 break;
10182
10183         case LPFC_SLI_INTF_IF_TYPE_1:
10184         default:
10185                 break;
10186         }
10187
10188 out:
10189         /* Catch the not-ready port failure after a port reset. */
10190         if (rc) {
10191                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10192                                 "3317 HBA not functional: IP Reset Failed "
10193                                 "try: echo fw_reset > board_mode\n");
10194                 rc = -ENODEV;
10195         }
10196
10197         return rc;
10198 }
10199
10200 /**
10201  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
10202  * @phba: pointer to lpfc hba data structure.
10203  *
10204  * This routine is invoked to set up the PCI device memory space for device
10205  * with SLI-4 interface spec.
10206  *
10207  * Return codes
10208  *      0 - successful
10209  *      other values - error
10210  **/
10211 static int
10212 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
10213 {
10214         struct pci_dev *pdev = phba->pcidev;
10215         unsigned long bar0map_len, bar1map_len, bar2map_len;
10216         int error;
10217         uint32_t if_type;
10218
10219         if (!pdev)
10220                 return -ENODEV;
10221
10222         /* Set the device DMA mask size */
10223         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
10224         if (error)
10225                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
10226         if (error)
10227                 return error;
10228
10229         /*
10230          * The BARs and register set definitions and offset locations are
10231          * dependent on the if_type.
10232          */
10233         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
10234                                   &phba->sli4_hba.sli_intf.word0)) {
10235                 return -ENODEV;
10236         }
10237
10238         /* There is no SLI3 failback for SLI4 devices. */
10239         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
10240             LPFC_SLI_INTF_VALID) {
10241                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10242                                 "2894 SLI_INTF reg contents invalid "
10243                                 "sli_intf reg 0x%x\n",
10244                                 phba->sli4_hba.sli_intf.word0);
10245                 return -ENODEV;
10246         }
10247
10248         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10249         /*
10250          * Get the bus address of SLI4 device Bar regions and the
10251          * number of bytes required by each mapping. The mapping of the
10252          * particular PCI BARs regions is dependent on the type of
10253          * SLI4 device.
10254          */
10255         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
10256                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
10257                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
10258
10259                 /*
10260                  * Map SLI4 PCI Config Space Register base to a kernel virtual
10261                  * addr
10262                  */
10263                 phba->sli4_hba.conf_regs_memmap_p =
10264                         ioremap(phba->pci_bar0_map, bar0map_len);
10265                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10266                         dev_printk(KERN_ERR, &pdev->dev,
10267                                    "ioremap failed for SLI4 PCI config "
10268                                    "registers.\n");
10269                         return -ENODEV;
10270                 }
10271                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
10272                 /* Set up BAR0 PCI config space register memory map */
10273                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10274         } else {
10275                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
10276                 bar0map_len = pci_resource_len(pdev, 1);
10277                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10278                         dev_printk(KERN_ERR, &pdev->dev,
10279                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
10280                         return -ENODEV;
10281                 }
10282                 phba->sli4_hba.conf_regs_memmap_p =
10283                                 ioremap(phba->pci_bar0_map, bar0map_len);
10284                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10285                         dev_printk(KERN_ERR, &pdev->dev,
10286                                 "ioremap failed for SLI4 PCI config "
10287                                 "registers.\n");
10288                         return -ENODEV;
10289                 }
10290                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10291         }
10292
10293         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10294                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
10295                         /*
10296                          * Map SLI4 if type 0 HBA Control Register base to a
10297                          * kernel virtual address and setup the registers.
10298                          */
10299                         phba->pci_bar1_map = pci_resource_start(pdev,
10300                                                                 PCI_64BIT_BAR2);
10301                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10302                         phba->sli4_hba.ctrl_regs_memmap_p =
10303                                         ioremap(phba->pci_bar1_map,
10304                                                 bar1map_len);
10305                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
10306                                 dev_err(&pdev->dev,
10307                                            "ioremap failed for SLI4 HBA "
10308                                             "control registers.\n");
10309                                 error = -ENOMEM;
10310                                 goto out_iounmap_conf;
10311                         }
10312                         phba->pci_bar2_memmap_p =
10313                                          phba->sli4_hba.ctrl_regs_memmap_p;
10314                         lpfc_sli4_bar1_register_memmap(phba, if_type);
10315                 } else {
10316                         error = -ENOMEM;
10317                         goto out_iounmap_conf;
10318                 }
10319         }
10320
10321         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
10322             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
10323                 /*
10324                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
10325                  * virtual address and setup the registers.
10326                  */
10327                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
10328                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10329                 phba->sli4_hba.drbl_regs_memmap_p =
10330                                 ioremap(phba->pci_bar1_map, bar1map_len);
10331                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
10332                         dev_err(&pdev->dev,
10333                            "ioremap failed for SLI4 HBA doorbell registers.\n");
10334                         error = -ENOMEM;
10335                         goto out_iounmap_conf;
10336                 }
10337                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
10338                 lpfc_sli4_bar1_register_memmap(phba, if_type);
10339         }
10340
10341         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10342                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10343                         /*
10344                          * Map SLI4 if type 0 HBA Doorbell Register base to
10345                          * a kernel virtual address and setup the registers.
10346                          */
10347                         phba->pci_bar2_map = pci_resource_start(pdev,
10348                                                                 PCI_64BIT_BAR4);
10349                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10350                         phba->sli4_hba.drbl_regs_memmap_p =
10351                                         ioremap(phba->pci_bar2_map,
10352                                                 bar2map_len);
10353                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
10354                                 dev_err(&pdev->dev,
10355                                            "ioremap failed for SLI4 HBA"
10356                                            " doorbell registers.\n");
10357                                 error = -ENOMEM;
10358                                 goto out_iounmap_ctrl;
10359                         }
10360                         phba->pci_bar4_memmap_p =
10361                                         phba->sli4_hba.drbl_regs_memmap_p;
10362                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
10363                         if (error)
10364                                 goto out_iounmap_all;
10365                 } else {
10366                         error = -ENOMEM;
10367                         goto out_iounmap_all;
10368                 }
10369         }
10370
10371         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
10372             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10373                 /*
10374                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
10375                  * virtual address and setup the registers.
10376                  */
10377                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
10378                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10379                 phba->sli4_hba.dpp_regs_memmap_p =
10380                                 ioremap(phba->pci_bar2_map, bar2map_len);
10381                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
10382                         dev_err(&pdev->dev,
10383                            "ioremap failed for SLI4 HBA dpp registers.\n");
10384                         error = -ENOMEM;
10385                         goto out_iounmap_ctrl;
10386                 }
10387                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
10388         }
10389
10390         /* Set up the EQ/CQ register handeling functions now */
10391         switch (if_type) {
10392         case LPFC_SLI_INTF_IF_TYPE_0:
10393         case LPFC_SLI_INTF_IF_TYPE_2:
10394                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
10395                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
10396                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
10397                 break;
10398         case LPFC_SLI_INTF_IF_TYPE_6:
10399                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
10400                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
10401                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
10402                 break;
10403         default:
10404                 break;
10405         }
10406
10407         return 0;
10408
10409 out_iounmap_all:
10410         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10411 out_iounmap_ctrl:
10412         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10413 out_iounmap_conf:
10414         iounmap(phba->sli4_hba.conf_regs_memmap_p);
10415
10416         return error;
10417 }
10418
10419 /**
10420  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
10421  * @phba: pointer to lpfc hba data structure.
10422  *
10423  * This routine is invoked to unset the PCI device memory space for device
10424  * with SLI-4 interface spec.
10425  **/
10426 static void
10427 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
10428 {
10429         uint32_t if_type;
10430         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10431
10432         switch (if_type) {
10433         case LPFC_SLI_INTF_IF_TYPE_0:
10434                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10435                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10436                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10437                 break;
10438         case LPFC_SLI_INTF_IF_TYPE_2:
10439                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10440                 break;
10441         case LPFC_SLI_INTF_IF_TYPE_6:
10442                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10443                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10444                 if (phba->sli4_hba.dpp_regs_memmap_p)
10445                         iounmap(phba->sli4_hba.dpp_regs_memmap_p);
10446                 break;
10447         case LPFC_SLI_INTF_IF_TYPE_1:
10448         default:
10449                 dev_printk(KERN_ERR, &phba->pcidev->dev,
10450                            "FATAL - unsupported SLI4 interface type - %d\n",
10451                            if_type);
10452                 break;
10453         }
10454 }
10455
10456 /**
10457  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
10458  * @phba: pointer to lpfc hba data structure.
10459  *
10460  * This routine is invoked to enable the MSI-X interrupt vectors to device
10461  * with SLI-3 interface specs.
10462  *
10463  * Return codes
10464  *   0 - successful
10465  *   other values - error
10466  **/
10467 static int
10468 lpfc_sli_enable_msix(struct lpfc_hba *phba)
10469 {
10470         int rc;
10471         LPFC_MBOXQ_t *pmb;
10472
10473         /* Set up MSI-X multi-message vectors */
10474         rc = pci_alloc_irq_vectors(phba->pcidev,
10475                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
10476         if (rc < 0) {
10477                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10478                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
10479                 goto vec_fail_out;
10480         }
10481
10482         /*
10483          * Assign MSI-X vectors to interrupt handlers
10484          */
10485
10486         /* vector-0 is associated to slow-path handler */
10487         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10488                          &lpfc_sli_sp_intr_handler, 0,
10489                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
10490         if (rc) {
10491                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10492                                 "0421 MSI-X slow-path request_irq failed "
10493                                 "(%d)\n", rc);
10494                 goto msi_fail_out;
10495         }
10496
10497         /* vector-1 is associated to fast-path handler */
10498         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10499                          &lpfc_sli_fp_intr_handler, 0,
10500                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
10501
10502         if (rc) {
10503                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10504                                 "0429 MSI-X fast-path request_irq failed "
10505                                 "(%d)\n", rc);
10506                 goto irq_fail_out;
10507         }
10508
10509         /*
10510          * Configure HBA MSI-X attention conditions to messages
10511          */
10512         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10513
10514         if (!pmb) {
10515                 rc = -ENOMEM;
10516                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10517                                 "0474 Unable to allocate memory for issuing "
10518                                 "MBOX_CONFIG_MSI command\n");
10519                 goto mem_fail_out;
10520         }
10521         rc = lpfc_config_msi(phba, pmb);
10522         if (rc)
10523                 goto mbx_fail_out;
10524         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10525         if (rc != MBX_SUCCESS) {
10526                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10527                                 "0351 Config MSI mailbox command failed, "
10528                                 "mbxCmd x%x, mbxStatus x%x\n",
10529                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10530                 goto mbx_fail_out;
10531         }
10532
10533         /* Free memory allocated for mailbox command */
10534         mempool_free(pmb, phba->mbox_mem_pool);
10535         return rc;
10536
10537 mbx_fail_out:
10538         /* Free memory allocated for mailbox command */
10539         mempool_free(pmb, phba->mbox_mem_pool);
10540
10541 mem_fail_out:
10542         /* free the irq already requested */
10543         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10544
10545 irq_fail_out:
10546         /* free the irq already requested */
10547         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10548
10549 msi_fail_out:
10550         /* Unconfigure MSI-X capability structure */
10551         pci_free_irq_vectors(phba->pcidev);
10552
10553 vec_fail_out:
10554         return rc;
10555 }
10556
10557 /**
10558  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10559  * @phba: pointer to lpfc hba data structure.
10560  *
10561  * This routine is invoked to enable the MSI interrupt mode to device with
10562  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10563  * enable the MSI vector. The device driver is responsible for calling the
10564  * request_irq() to register MSI vector with a interrupt the handler, which
10565  * is done in this function.
10566  *
10567  * Return codes
10568  *      0 - successful
10569  *      other values - error
10570  */
10571 static int
10572 lpfc_sli_enable_msi(struct lpfc_hba *phba)
10573 {
10574         int rc;
10575
10576         rc = pci_enable_msi(phba->pcidev);
10577         if (!rc)
10578                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10579                                 "0462 PCI enable MSI mode success.\n");
10580         else {
10581                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10582                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
10583                 return rc;
10584         }
10585
10586         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10587                          0, LPFC_DRIVER_NAME, phba);
10588         if (rc) {
10589                 pci_disable_msi(phba->pcidev);
10590                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10591                                 "0478 MSI request_irq failed (%d)\n", rc);
10592         }
10593         return rc;
10594 }
10595
10596 /**
10597  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10598  * @phba: pointer to lpfc hba data structure.
10599  *
10600  * This routine is invoked to enable device interrupt and associate driver's
10601  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10602  * spec. Depends on the interrupt mode configured to the driver, the driver
10603  * will try to fallback from the configured interrupt mode to an interrupt
10604  * mode which is supported by the platform, kernel, and device in the order
10605  * of:
10606  * MSI-X -> MSI -> IRQ.
10607  *
10608  * Return codes
10609  *   0 - successful
10610  *   other values - error
10611  **/
10612 static uint32_t
10613 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10614 {
10615         uint32_t intr_mode = LPFC_INTR_ERROR;
10616         int retval;
10617
10618         if (cfg_mode == 2) {
10619                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10620                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10621                 if (!retval) {
10622                         /* Now, try to enable MSI-X interrupt mode */
10623                         retval = lpfc_sli_enable_msix(phba);
10624                         if (!retval) {
10625                                 /* Indicate initialization to MSI-X mode */
10626                                 phba->intr_type = MSIX;
10627                                 intr_mode = 2;
10628                         }
10629                 }
10630         }
10631
10632         /* Fallback to MSI if MSI-X initialization failed */
10633         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10634                 retval = lpfc_sli_enable_msi(phba);
10635                 if (!retval) {
10636                         /* Indicate initialization to MSI mode */
10637                         phba->intr_type = MSI;
10638                         intr_mode = 1;
10639                 }
10640         }
10641
10642         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10643         if (phba->intr_type == NONE) {
10644                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10645                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10646                 if (!retval) {
10647                         /* Indicate initialization to INTx mode */
10648                         phba->intr_type = INTx;
10649                         intr_mode = 0;
10650                 }
10651         }
10652         return intr_mode;
10653 }
10654
10655 /**
10656  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10657  * @phba: pointer to lpfc hba data structure.
10658  *
10659  * This routine is invoked to disable device interrupt and disassociate the
10660  * driver's interrupt handler(s) from interrupt vector(s) to device with
10661  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10662  * release the interrupt vector(s) for the message signaled interrupt.
10663  **/
10664 static void
10665 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10666 {
10667         int nr_irqs, i;
10668
10669         if (phba->intr_type == MSIX)
10670                 nr_irqs = LPFC_MSIX_VECTORS;
10671         else
10672                 nr_irqs = 1;
10673
10674         for (i = 0; i < nr_irqs; i++)
10675                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
10676         pci_free_irq_vectors(phba->pcidev);
10677
10678         /* Reset interrupt management states */
10679         phba->intr_type = NONE;
10680         phba->sli.slistat.sli_intr = 0;
10681 }
10682
10683 /**
10684  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
10685  * @phba: pointer to lpfc hba data structure.
10686  * @id: EQ vector index or Hardware Queue index
10687  * @match: LPFC_FIND_BY_EQ = match by EQ
10688  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
10689  * Return the CPU that matches the selection criteria
10690  */
10691 static uint16_t
10692 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
10693 {
10694         struct lpfc_vector_map_info *cpup;
10695         int cpu;
10696
10697         /* Loop through all CPUs */
10698         for_each_present_cpu(cpu) {
10699                 cpup = &phba->sli4_hba.cpu_map[cpu];
10700
10701                 /* If we are matching by EQ, there may be multiple CPUs using
10702                  * using the same vector, so select the one with
10703                  * LPFC_CPU_FIRST_IRQ set.
10704                  */
10705                 if ((match == LPFC_FIND_BY_EQ) &&
10706                     (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
10707                     (cpup->eq == id))
10708                         return cpu;
10709
10710                 /* If matching by HDWQ, select the first CPU that matches */
10711                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
10712                         return cpu;
10713         }
10714         return 0;
10715 }
10716
10717 #ifdef CONFIG_X86
10718 /**
10719  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
10720  * @phba: pointer to lpfc hba data structure.
10721  * @cpu: CPU map index
10722  * @phys_id: CPU package physical id
10723  * @core_id: CPU core id
10724  */
10725 static int
10726 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
10727                 uint16_t phys_id, uint16_t core_id)
10728 {
10729         struct lpfc_vector_map_info *cpup;
10730         int idx;
10731
10732         for_each_present_cpu(idx) {
10733                 cpup = &phba->sli4_hba.cpu_map[idx];
10734                 /* Does the cpup match the one we are looking for */
10735                 if ((cpup->phys_id == phys_id) &&
10736                     (cpup->core_id == core_id) &&
10737                     (cpu != idx))
10738                         return 1;
10739         }
10740         return 0;
10741 }
10742 #endif
10743
10744 /*
10745  * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
10746  * @phba: pointer to lpfc hba data structure.
10747  * @eqidx: index for eq and irq vector
10748  * @flag: flags to set for vector_map structure
10749  * @cpu: cpu used to index vector_map structure
10750  *
10751  * The routine assigns eq info into vector_map structure
10752  */
10753 static inline void
10754 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
10755                         unsigned int cpu)
10756 {
10757         struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
10758         struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
10759
10760         cpup->eq = eqidx;
10761         cpup->flag |= flag;
10762
10763         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10764                         "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
10765                         cpu, eqhdl->irq, cpup->eq, cpup->flag);
10766 }
10767
10768 /**
10769  * lpfc_cpu_map_array_init - Initialize cpu_map structure
10770  * @phba: pointer to lpfc hba data structure.
10771  *
10772  * The routine initializes the cpu_map array structure
10773  */
10774 static void
10775 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
10776 {
10777         struct lpfc_vector_map_info *cpup;
10778         struct lpfc_eq_intr_info *eqi;
10779         int cpu;
10780
10781         for_each_possible_cpu(cpu) {
10782                 cpup = &phba->sli4_hba.cpu_map[cpu];
10783                 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
10784                 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
10785                 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
10786                 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
10787                 cpup->flag = 0;
10788                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
10789                 INIT_LIST_HEAD(&eqi->list);
10790                 eqi->icnt = 0;
10791         }
10792 }
10793
10794 /**
10795  * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
10796  * @phba: pointer to lpfc hba data structure.
10797  *
10798  * The routine initializes the hba_eq_hdl array structure
10799  */
10800 static void
10801 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
10802 {
10803         struct lpfc_hba_eq_hdl *eqhdl;
10804         int i;
10805
10806         for (i = 0; i < phba->cfg_irq_chann; i++) {
10807                 eqhdl = lpfc_get_eq_hdl(i);
10808                 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
10809                 eqhdl->phba = phba;
10810         }
10811 }
10812
10813 /**
10814  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10815  * @phba: pointer to lpfc hba data structure.
10816  * @vectors: number of msix vectors allocated.
10817  *
10818  * The routine will figure out the CPU affinity assignment for every
10819  * MSI-X vector allocated for the HBA.
10820  * In addition, the CPU to IO channel mapping will be calculated
10821  * and the phba->sli4_hba.cpu_map array will reflect this.
10822  */
10823 static void
10824 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10825 {
10826         int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
10827         int max_phys_id, min_phys_id;
10828         int max_core_id, min_core_id;
10829         struct lpfc_vector_map_info *cpup;
10830         struct lpfc_vector_map_info *new_cpup;
10831 #ifdef CONFIG_X86
10832         struct cpuinfo_x86 *cpuinfo;
10833 #endif
10834
10835         max_phys_id = 0;
10836         min_phys_id = LPFC_VECTOR_MAP_EMPTY;
10837         max_core_id = 0;
10838         min_core_id = LPFC_VECTOR_MAP_EMPTY;
10839
10840         /* Update CPU map with physical id and core id of each CPU */
10841         for_each_present_cpu(cpu) {
10842                 cpup = &phba->sli4_hba.cpu_map[cpu];
10843 #ifdef CONFIG_X86
10844                 cpuinfo = &cpu_data(cpu);
10845                 cpup->phys_id = cpuinfo->phys_proc_id;
10846                 cpup->core_id = cpuinfo->cpu_core_id;
10847                 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
10848                         cpup->flag |= LPFC_CPU_MAP_HYPER;
10849 #else
10850                 /* No distinction between CPUs for other platforms */
10851                 cpup->phys_id = 0;
10852                 cpup->core_id = cpu;
10853 #endif
10854
10855                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10856                                 "3328 CPU %d physid %d coreid %d flag x%x\n",
10857                                 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
10858
10859                 if (cpup->phys_id > max_phys_id)
10860                         max_phys_id = cpup->phys_id;
10861                 if (cpup->phys_id < min_phys_id)
10862                         min_phys_id = cpup->phys_id;
10863
10864                 if (cpup->core_id > max_core_id)
10865                         max_core_id = cpup->core_id;
10866                 if (cpup->core_id < min_core_id)
10867                         min_core_id = cpup->core_id;
10868         }
10869
10870         /* After looking at each irq vector assigned to this pcidev, its
10871          * possible to see that not ALL CPUs have been accounted for.
10872          * Next we will set any unassigned (unaffinitized) cpu map
10873          * entries to a IRQ on the same phys_id.
10874          */
10875         first_cpu = cpumask_first(cpu_present_mask);
10876         start_cpu = first_cpu;
10877
10878         for_each_present_cpu(cpu) {
10879                 cpup = &phba->sli4_hba.cpu_map[cpu];
10880
10881                 /* Is this CPU entry unassigned */
10882                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
10883                         /* Mark CPU as IRQ not assigned by the kernel */
10884                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
10885
10886                         /* If so, find a new_cpup thats on the the SAME
10887                          * phys_id as cpup. start_cpu will start where we
10888                          * left off so all unassigned entries don't get assgined
10889                          * the IRQ of the first entry.
10890                          */
10891                         new_cpu = start_cpu;
10892                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10893                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10894                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
10895                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
10896                                     (new_cpup->phys_id == cpup->phys_id))
10897                                         goto found_same;
10898                                 new_cpu = cpumask_next(
10899                                         new_cpu, cpu_present_mask);
10900                                 if (new_cpu == nr_cpumask_bits)
10901                                         new_cpu = first_cpu;
10902                         }
10903                         /* At this point, we leave the CPU as unassigned */
10904                         continue;
10905 found_same:
10906                         /* We found a matching phys_id, so copy the IRQ info */
10907                         cpup->eq = new_cpup->eq;
10908
10909                         /* Bump start_cpu to the next slot to minmize the
10910                          * chance of having multiple unassigned CPU entries
10911                          * selecting the same IRQ.
10912                          */
10913                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10914                         if (start_cpu == nr_cpumask_bits)
10915                                 start_cpu = first_cpu;
10916
10917                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10918                                         "3337 Set Affinity: CPU %d "
10919                                         "eq %d from peer cpu %d same "
10920                                         "phys_id (%d)\n",
10921                                         cpu, cpup->eq, new_cpu,
10922                                         cpup->phys_id);
10923                 }
10924         }
10925
10926         /* Set any unassigned cpu map entries to a IRQ on any phys_id */
10927         start_cpu = first_cpu;
10928
10929         for_each_present_cpu(cpu) {
10930                 cpup = &phba->sli4_hba.cpu_map[cpu];
10931
10932                 /* Is this entry unassigned */
10933                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
10934                         /* Mark it as IRQ not assigned by the kernel */
10935                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
10936
10937                         /* If so, find a new_cpup thats on ANY phys_id
10938                          * as the cpup. start_cpu will start where we
10939                          * left off so all unassigned entries don't get
10940                          * assigned the IRQ of the first entry.
10941                          */
10942                         new_cpu = start_cpu;
10943                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
10944                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
10945                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
10946                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
10947                                         goto found_any;
10948                                 new_cpu = cpumask_next(
10949                                         new_cpu, cpu_present_mask);
10950                                 if (new_cpu == nr_cpumask_bits)
10951                                         new_cpu = first_cpu;
10952                         }
10953                         /* We should never leave an entry unassigned */
10954                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10955                                         "3339 Set Affinity: CPU %d "
10956                                         "eq %d UNASSIGNED\n",
10957                                         cpup->hdwq, cpup->eq);
10958                         continue;
10959 found_any:
10960                         /* We found an available entry, copy the IRQ info */
10961                         cpup->eq = new_cpup->eq;
10962
10963                         /* Bump start_cpu to the next slot to minmize the
10964                          * chance of having multiple unassigned CPU entries
10965                          * selecting the same IRQ.
10966                          */
10967                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
10968                         if (start_cpu == nr_cpumask_bits)
10969                                 start_cpu = first_cpu;
10970
10971                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10972                                         "3338 Set Affinity: CPU %d "
10973                                         "eq %d from peer cpu %d (%d/%d)\n",
10974                                         cpu, cpup->eq, new_cpu,
10975                                         new_cpup->phys_id, new_cpup->core_id);
10976                 }
10977         }
10978
10979         /* Assign hdwq indices that are unique across all cpus in the map
10980          * that are also FIRST_CPUs.
10981          */
10982         idx = 0;
10983         for_each_present_cpu(cpu) {
10984                 cpup = &phba->sli4_hba.cpu_map[cpu];
10985
10986                 /* Only FIRST IRQs get a hdwq index assignment. */
10987                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10988                         continue;
10989
10990                 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
10991                 cpup->hdwq = idx;
10992                 idx++;
10993                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10994                                 "3333 Set Affinity: CPU %d (phys %d core %d): "
10995                                 "hdwq %d eq %d flg x%x\n",
10996                                 cpu, cpup->phys_id, cpup->core_id,
10997                                 cpup->hdwq, cpup->eq, cpup->flag);
10998         }
10999         /* Associate a hdwq with each cpu_map entry
11000          * This will be 1 to 1 - hdwq to cpu, unless there are less
11001          * hardware queues then CPUs. For that case we will just round-robin
11002          * the available hardware queues as they get assigned to CPUs.
11003          * The next_idx is the idx from the FIRST_CPU loop above to account
11004          * for irq_chann < hdwq.  The idx is used for round-robin assignments
11005          * and needs to start at 0.
11006          */
11007         next_idx = idx;
11008         start_cpu = 0;
11009         idx = 0;
11010         for_each_present_cpu(cpu) {
11011                 cpup = &phba->sli4_hba.cpu_map[cpu];
11012
11013                 /* FIRST cpus are already mapped. */
11014                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
11015                         continue;
11016
11017                 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
11018                  * of the unassigned cpus to the next idx so that all
11019                  * hdw queues are fully utilized.
11020                  */
11021                 if (next_idx < phba->cfg_hdw_queue) {
11022                         cpup->hdwq = next_idx;
11023                         next_idx++;
11024                         continue;
11025                 }
11026
11027                 /* Not a First CPU and all hdw_queues are used.  Reuse a
11028                  * Hardware Queue for another CPU, so be smart about it
11029                  * and pick one that has its IRQ/EQ mapped to the same phys_id
11030                  * (CPU package) and core_id.
11031                  */
11032                 new_cpu = start_cpu;
11033                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11034                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11035                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11036                             new_cpup->phys_id == cpup->phys_id &&
11037                             new_cpup->core_id == cpup->core_id) {
11038                                 goto found_hdwq;
11039                         }
11040                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11041                         if (new_cpu == nr_cpumask_bits)
11042                                 new_cpu = first_cpu;
11043                 }
11044
11045                 /* If we can't match both phys_id and core_id,
11046                  * settle for just a phys_id match.
11047                  */
11048                 new_cpu = start_cpu;
11049                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
11050                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
11051                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
11052                             new_cpup->phys_id == cpup->phys_id)
11053                                 goto found_hdwq;
11054
11055                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
11056                         if (new_cpu == nr_cpumask_bits)
11057                                 new_cpu = first_cpu;
11058                 }
11059
11060                 /* Otherwise just round robin on cfg_hdw_queue */
11061                 cpup->hdwq = idx % phba->cfg_hdw_queue;
11062                 idx++;
11063                 goto logit;
11064  found_hdwq:
11065                 /* We found an available entry, copy the IRQ info */
11066                 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
11067                 if (start_cpu == nr_cpumask_bits)
11068                         start_cpu = first_cpu;
11069                 cpup->hdwq = new_cpup->hdwq;
11070  logit:
11071                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11072                                 "3335 Set Affinity: CPU %d (phys %d core %d): "
11073                                 "hdwq %d eq %d flg x%x\n",
11074                                 cpu, cpup->phys_id, cpup->core_id,
11075                                 cpup->hdwq, cpup->eq, cpup->flag);
11076         }
11077
11078         /*
11079          * Initialize the cpu_map slots for not-present cpus in case
11080          * a cpu is hot-added. Perform a simple hdwq round robin assignment.
11081          */
11082         idx = 0;
11083         for_each_possible_cpu(cpu) {
11084                 cpup = &phba->sli4_hba.cpu_map[cpu];
11085                 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
11086                         continue;
11087
11088                 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
11089                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11090                                 "3340 Set Affinity: not present "
11091                                 "CPU %d hdwq %d\n",
11092                                 cpu, cpup->hdwq);
11093         }
11094
11095         /* The cpu_map array will be used later during initialization
11096          * when EQ / CQ / WQs are allocated and configured.
11097          */
11098         return;
11099 }
11100
11101 /**
11102  * lpfc_cpuhp_get_eq
11103  *
11104  * @phba:   pointer to lpfc hba data structure.
11105  * @cpu:    cpu going offline
11106  * @eqlist:
11107  */
11108 static void
11109 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
11110                   struct list_head *eqlist)
11111 {
11112         const struct cpumask *maskp;
11113         struct lpfc_queue *eq;
11114         cpumask_t tmp;
11115         u16 idx;
11116
11117         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11118                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
11119                 if (!maskp)
11120                         continue;
11121                 /*
11122                  * if irq is not affinitized to the cpu going
11123                  * then we don't need to poll the eq attached
11124                  * to it.
11125                  */
11126                 if (!cpumask_and(&tmp, maskp, cpumask_of(cpu)))
11127                         continue;
11128                 /* get the cpus that are online and are affini-
11129                  * tized to this irq vector.  If the count is
11130                  * more than 1 then cpuhp is not going to shut-
11131                  * down this vector.  Since this cpu has not
11132                  * gone offline yet, we need >1.
11133                  */
11134                 cpumask_and(&tmp, maskp, cpu_online_mask);
11135                 if (cpumask_weight(&tmp) > 1)
11136                         continue;
11137
11138                 /* Now that we have an irq to shutdown, get the eq
11139                  * mapped to this irq.  Note: multiple hdwq's in
11140                  * the software can share an eq, but eventually
11141                  * only eq will be mapped to this vector
11142                  */
11143                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
11144                 list_add(&eq->_poll_list, eqlist);
11145         }
11146 }
11147
11148 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
11149 {
11150         if (phba->sli_rev != LPFC_SLI_REV4)
11151                 return;
11152
11153         cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
11154                                             &phba->cpuhp);
11155         /*
11156          * unregistering the instance doesn't stop the polling
11157          * timer. Wait for the poll timer to retire.
11158          */
11159         synchronize_rcu();
11160         del_timer_sync(&phba->cpuhp_poll_timer);
11161 }
11162
11163 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
11164 {
11165         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
11166                 return;
11167
11168         __lpfc_cpuhp_remove(phba);
11169 }
11170
11171 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
11172 {
11173         if (phba->sli_rev != LPFC_SLI_REV4)
11174                 return;
11175
11176         rcu_read_lock();
11177
11178         if (!list_empty(&phba->poll_list)) {
11179                 timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
11180                 mod_timer(&phba->cpuhp_poll_timer,
11181                           jiffies + msecs_to_jiffies(LPFC_POLL_HB));
11182         }
11183
11184         rcu_read_unlock();
11185
11186         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
11187                                          &phba->cpuhp);
11188 }
11189
11190 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
11191 {
11192         if (phba->pport->load_flag & FC_UNLOADING) {
11193                 *retval = -EAGAIN;
11194                 return true;
11195         }
11196
11197         if (phba->sli_rev != LPFC_SLI_REV4) {
11198                 *retval = 0;
11199                 return true;
11200         }
11201
11202         /* proceed with the hotplug */
11203         return false;
11204 }
11205
11206 /**
11207  * lpfc_irq_set_aff - set IRQ affinity
11208  * @eqhdl: EQ handle
11209  * @cpu: cpu to set affinity
11210  *
11211  **/
11212 static inline void
11213 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
11214 {
11215         cpumask_clear(&eqhdl->aff_mask);
11216         cpumask_set_cpu(cpu, &eqhdl->aff_mask);
11217         irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
11218         irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
11219 }
11220
11221 /**
11222  * lpfc_irq_clear_aff - clear IRQ affinity
11223  * @eqhdl: EQ handle
11224  *
11225  **/
11226 static inline void
11227 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
11228 {
11229         cpumask_clear(&eqhdl->aff_mask);
11230         irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
11231         irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
11232 }
11233
11234 /**
11235  * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
11236  * @phba: pointer to HBA context object.
11237  * @cpu: cpu going offline/online
11238  * @offline: true, cpu is going offline. false, cpu is coming online.
11239  *
11240  * If cpu is going offline, we'll try our best effort to find the next
11241  * online cpu on the phba's NUMA node and migrate all offlining IRQ affinities.
11242  *
11243  * If cpu is coming online, reaffinitize the IRQ back to the onlineng cpu.
11244  *
11245  * Note: Call only if cfg_irq_numa is enabled, otherwise rely on
11246  *       PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
11247  *
11248  **/
11249 static void
11250 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
11251 {
11252         struct lpfc_vector_map_info *cpup;
11253         struct cpumask *aff_mask;
11254         unsigned int cpu_select, cpu_next, idx;
11255         const struct cpumask *numa_mask;
11256
11257         if (!phba->cfg_irq_numa)
11258                 return;
11259
11260         numa_mask = &phba->sli4_hba.numa_mask;
11261
11262         if (!cpumask_test_cpu(cpu, numa_mask))
11263                 return;
11264
11265         cpup = &phba->sli4_hba.cpu_map[cpu];
11266
11267         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11268                 return;
11269
11270         if (offline) {
11271                 /* Find next online CPU on NUMA node */
11272                 cpu_next = cpumask_next_wrap(cpu, numa_mask, cpu, true);
11273                 cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu_next);
11274
11275                 /* Found a valid CPU */
11276                 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
11277                         /* Go through each eqhdl and ensure offlining
11278                          * cpu aff_mask is migrated
11279                          */
11280                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11281                                 aff_mask = lpfc_get_aff_mask(idx);
11282
11283                                 /* Migrate affinity */
11284                                 if (cpumask_test_cpu(cpu, aff_mask))
11285                                         lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
11286                                                          cpu_select);
11287                         }
11288                 } else {
11289                         /* Rely on irqbalance if no online CPUs left on NUMA */
11290                         for (idx = 0; idx < phba->cfg_irq_chann; idx++)
11291                                 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
11292                 }
11293         } else {
11294                 /* Migrate affinity back to this CPU */
11295                 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
11296         }
11297 }
11298
11299 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
11300 {
11301         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
11302         struct lpfc_queue *eq, *next;
11303         LIST_HEAD(eqlist);
11304         int retval;
11305
11306         if (!phba) {
11307                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
11308                 return 0;
11309         }
11310
11311         if (__lpfc_cpuhp_checks(phba, &retval))
11312                 return retval;
11313
11314         lpfc_irq_rebalance(phba, cpu, true);
11315
11316         lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
11317
11318         /* start polling on these eq's */
11319         list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
11320                 list_del_init(&eq->_poll_list);
11321                 lpfc_sli4_start_polling(eq);
11322         }
11323
11324         return 0;
11325 }
11326
11327 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
11328 {
11329         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
11330         struct lpfc_queue *eq, *next;
11331         unsigned int n;
11332         int retval;
11333
11334         if (!phba) {
11335                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
11336                 return 0;
11337         }
11338
11339         if (__lpfc_cpuhp_checks(phba, &retval))
11340                 return retval;
11341
11342         lpfc_irq_rebalance(phba, cpu, false);
11343
11344         list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
11345                 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
11346                 if (n == cpu)
11347                         lpfc_sli4_stop_polling(eq);
11348         }
11349
11350         return 0;
11351 }
11352
11353 /**
11354  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
11355  * @phba: pointer to lpfc hba data structure.
11356  *
11357  * This routine is invoked to enable the MSI-X interrupt vectors to device
11358  * with SLI-4 interface spec.  It also allocates MSI-X vectors and maps them
11359  * to cpus on the system.
11360  *
11361  * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
11362  * the number of cpus on the same numa node as this adapter.  The vectors are
11363  * allocated without requesting OS affinity mapping.  A vector will be
11364  * allocated and assigned to each online and offline cpu.  If the cpu is
11365  * online, then affinity will be set to that cpu.  If the cpu is offline, then
11366  * affinity will be set to the nearest peer cpu within the numa node that is
11367  * online.  If there are no online cpus within the numa node, affinity is not
11368  * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
11369  * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
11370  * configured.
11371  *
11372  * If numa mode is not enabled and there is more than 1 vector allocated, then
11373  * the driver relies on the managed irq interface where the OS assigns vector to
11374  * cpu affinity.  The driver will then use that affinity mapping to setup its
11375  * cpu mapping table.
11376  *
11377  * Return codes
11378  * 0 - successful
11379  * other values - error
11380  **/
11381 static int
11382 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
11383 {
11384         int vectors, rc, index;
11385         char *name;
11386         const struct cpumask *numa_mask = NULL;
11387         unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
11388         struct lpfc_hba_eq_hdl *eqhdl;
11389         const struct cpumask *maskp;
11390         bool first;
11391         unsigned int flags = PCI_IRQ_MSIX;
11392
11393         /* Set up MSI-X multi-message vectors */
11394         vectors = phba->cfg_irq_chann;
11395
11396         if (phba->cfg_irq_numa) {
11397                 numa_mask = &phba->sli4_hba.numa_mask;
11398                 cpu_cnt = cpumask_weight(numa_mask);
11399                 vectors = min(phba->cfg_irq_chann, cpu_cnt);
11400
11401                 /* cpu: iterates over numa_mask including offline or online
11402                  * cpu_select: iterates over online numa_mask to set affinity
11403                  */
11404                 cpu = cpumask_first(numa_mask);
11405                 cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu);
11406         } else {
11407                 flags |= PCI_IRQ_AFFINITY;
11408         }
11409
11410         rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
11411         if (rc < 0) {
11412                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11413                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
11414                 goto vec_fail_out;
11415         }
11416         vectors = rc;
11417
11418         /* Assign MSI-X vectors to interrupt handlers */
11419         for (index = 0; index < vectors; index++) {
11420                 eqhdl = lpfc_get_eq_hdl(index);
11421                 name = eqhdl->handler_name;
11422                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
11423                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
11424                          LPFC_DRIVER_HANDLER_NAME"%d", index);
11425
11426                 eqhdl->idx = index;
11427                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
11428                          &lpfc_sli4_hba_intr_handler, 0,
11429                          name, eqhdl);
11430                 if (rc) {
11431                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11432                                         "0486 MSI-X fast-path (%d) "
11433                                         "request_irq failed (%d)\n", index, rc);
11434                         goto cfg_fail_out;
11435                 }
11436
11437                 eqhdl->irq = pci_irq_vector(phba->pcidev, index);
11438
11439                 if (phba->cfg_irq_numa) {
11440                         /* If found a neighboring online cpu, set affinity */
11441                         if (cpu_select < nr_cpu_ids)
11442                                 lpfc_irq_set_aff(eqhdl, cpu_select);
11443
11444                         /* Assign EQ to cpu_map */
11445                         lpfc_assign_eq_map_info(phba, index,
11446                                                 LPFC_CPU_FIRST_IRQ,
11447                                                 cpu);
11448
11449                         /* Iterate to next offline or online cpu in numa_mask */
11450                         cpu = cpumask_next(cpu, numa_mask);
11451
11452                         /* Find next online cpu in numa_mask to set affinity */
11453                         cpu_select = lpfc_next_online_numa_cpu(numa_mask, cpu);
11454                 } else if (vectors == 1) {
11455                         cpu = cpumask_first(cpu_present_mask);
11456                         lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
11457                                                 cpu);
11458                 } else {
11459                         maskp = pci_irq_get_affinity(phba->pcidev, index);
11460
11461                         first = true;
11462                         /* Loop through all CPUs associated with vector index */
11463                         for_each_cpu_and(cpu, maskp, cpu_present_mask) {
11464                                 /* If this is the first CPU thats assigned to
11465                                  * this vector, set LPFC_CPU_FIRST_IRQ.
11466                                  */
11467                                 lpfc_assign_eq_map_info(phba, index,
11468                                                         first ?
11469                                                         LPFC_CPU_FIRST_IRQ : 0,
11470                                                         cpu);
11471                                 if (first)
11472                                         first = false;
11473                         }
11474                 }
11475         }
11476
11477         if (vectors != phba->cfg_irq_chann) {
11478                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11479                                 "3238 Reducing IO channels to match number of "
11480                                 "MSI-X vectors, requested %d got %d\n",
11481                                 phba->cfg_irq_chann, vectors);
11482                 if (phba->cfg_irq_chann > vectors)
11483                         phba->cfg_irq_chann = vectors;
11484         }
11485
11486         return rc;
11487
11488 cfg_fail_out:
11489         /* free the irq already requested */
11490         for (--index; index >= 0; index--) {
11491                 eqhdl = lpfc_get_eq_hdl(index);
11492                 lpfc_irq_clear_aff(eqhdl);
11493                 irq_set_affinity_hint(eqhdl->irq, NULL);
11494                 free_irq(eqhdl->irq, eqhdl);
11495         }
11496
11497         /* Unconfigure MSI-X capability structure */
11498         pci_free_irq_vectors(phba->pcidev);
11499
11500 vec_fail_out:
11501         return rc;
11502 }
11503
11504 /**
11505  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
11506  * @phba: pointer to lpfc hba data structure.
11507  *
11508  * This routine is invoked to enable the MSI interrupt mode to device with
11509  * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
11510  * called to enable the MSI vector. The device driver is responsible for
11511  * calling the request_irq() to register MSI vector with a interrupt the
11512  * handler, which is done in this function.
11513  *
11514  * Return codes
11515  *      0 - successful
11516  *      other values - error
11517  **/
11518 static int
11519 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
11520 {
11521         int rc, index;
11522         unsigned int cpu;
11523         struct lpfc_hba_eq_hdl *eqhdl;
11524
11525         rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
11526                                    PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
11527         if (rc > 0)
11528                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11529                                 "0487 PCI enable MSI mode success.\n");
11530         else {
11531                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11532                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
11533                 return rc ? rc : -1;
11534         }
11535
11536         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11537                          0, LPFC_DRIVER_NAME, phba);
11538         if (rc) {
11539                 pci_free_irq_vectors(phba->pcidev);
11540                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11541                                 "0490 MSI request_irq failed (%d)\n", rc);
11542                 return rc;
11543         }
11544
11545         eqhdl = lpfc_get_eq_hdl(0);
11546         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
11547
11548         cpu = cpumask_first(cpu_present_mask);
11549         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
11550
11551         for (index = 0; index < phba->cfg_irq_chann; index++) {
11552                 eqhdl = lpfc_get_eq_hdl(index);
11553                 eqhdl->idx = index;
11554         }
11555
11556         return 0;
11557 }
11558
11559 /**
11560  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
11561  * @phba: pointer to lpfc hba data structure.
11562  *
11563  * This routine is invoked to enable device interrupt and associate driver's
11564  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
11565  * interface spec. Depends on the interrupt mode configured to the driver,
11566  * the driver will try to fallback from the configured interrupt mode to an
11567  * interrupt mode which is supported by the platform, kernel, and device in
11568  * the order of:
11569  * MSI-X -> MSI -> IRQ.
11570  *
11571  * Return codes
11572  *      0 - successful
11573  *      other values - error
11574  **/
11575 static uint32_t
11576 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
11577 {
11578         uint32_t intr_mode = LPFC_INTR_ERROR;
11579         int retval, idx;
11580
11581         if (cfg_mode == 2) {
11582                 /* Preparation before conf_msi mbox cmd */
11583                 retval = 0;
11584                 if (!retval) {
11585                         /* Now, try to enable MSI-X interrupt mode */
11586                         retval = lpfc_sli4_enable_msix(phba);
11587                         if (!retval) {
11588                                 /* Indicate initialization to MSI-X mode */
11589                                 phba->intr_type = MSIX;
11590                                 intr_mode = 2;
11591                         }
11592                 }
11593         }
11594
11595         /* Fallback to MSI if MSI-X initialization failed */
11596         if (cfg_mode >= 1 && phba->intr_type == NONE) {
11597                 retval = lpfc_sli4_enable_msi(phba);
11598                 if (!retval) {
11599                         /* Indicate initialization to MSI mode */
11600                         phba->intr_type = MSI;
11601                         intr_mode = 1;
11602                 }
11603         }
11604
11605         /* Fallback to INTx if both MSI-X/MSI initalization failed */
11606         if (phba->intr_type == NONE) {
11607                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
11608                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
11609                 if (!retval) {
11610                         struct lpfc_hba_eq_hdl *eqhdl;
11611                         unsigned int cpu;
11612
11613                         /* Indicate initialization to INTx mode */
11614                         phba->intr_type = INTx;
11615                         intr_mode = 0;
11616
11617                         eqhdl = lpfc_get_eq_hdl(0);
11618                         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
11619
11620                         cpu = cpumask_first(cpu_present_mask);
11621                         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
11622                                                 cpu);
11623                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
11624                                 eqhdl = lpfc_get_eq_hdl(idx);
11625                                 eqhdl->idx = idx;
11626                         }
11627                 }
11628         }
11629         return intr_mode;
11630 }
11631
11632 /**
11633  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
11634  * @phba: pointer to lpfc hba data structure.
11635  *
11636  * This routine is invoked to disable device interrupt and disassociate
11637  * the driver's interrupt handler(s) from interrupt vector(s) to device
11638  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
11639  * will release the interrupt vector(s) for the message signaled interrupt.
11640  **/
11641 static void
11642 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
11643 {
11644         /* Disable the currently initialized interrupt mode */
11645         if (phba->intr_type == MSIX) {
11646                 int index;
11647                 struct lpfc_hba_eq_hdl *eqhdl;
11648
11649                 /* Free up MSI-X multi-message vectors */
11650                 for (index = 0; index < phba->cfg_irq_chann; index++) {
11651                         eqhdl = lpfc_get_eq_hdl(index);
11652                         lpfc_irq_clear_aff(eqhdl);
11653                         irq_set_affinity_hint(eqhdl->irq, NULL);
11654                         free_irq(eqhdl->irq, eqhdl);
11655                 }
11656         } else {
11657                 free_irq(phba->pcidev->irq, phba);
11658         }
11659
11660         pci_free_irq_vectors(phba->pcidev);
11661
11662         /* Reset interrupt management states */
11663         phba->intr_type = NONE;
11664         phba->sli.slistat.sli_intr = 0;
11665 }
11666
11667 /**
11668  * lpfc_unset_hba - Unset SLI3 hba device initialization
11669  * @phba: pointer to lpfc hba data structure.
11670  *
11671  * This routine is invoked to unset the HBA device initialization steps to
11672  * a device with SLI-3 interface spec.
11673  **/
11674 static void
11675 lpfc_unset_hba(struct lpfc_hba *phba)
11676 {
11677         struct lpfc_vport *vport = phba->pport;
11678         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
11679
11680         spin_lock_irq(shost->host_lock);
11681         vport->load_flag |= FC_UNLOADING;
11682         spin_unlock_irq(shost->host_lock);
11683
11684         kfree(phba->vpi_bmask);
11685         kfree(phba->vpi_ids);
11686
11687         lpfc_stop_hba_timers(phba);
11688
11689         phba->pport->work_port_events = 0;
11690
11691         lpfc_sli_hba_down(phba);
11692
11693         lpfc_sli_brdrestart(phba);
11694
11695         lpfc_sli_disable_intr(phba);
11696
11697         return;
11698 }
11699
11700 /**
11701  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
11702  * @phba: Pointer to HBA context object.
11703  *
11704  * This function is called in the SLI4 code path to wait for completion
11705  * of device's XRIs exchange busy. It will check the XRI exchange busy
11706  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
11707  * that, it will check the XRI exchange busy on outstanding FCP and ELS
11708  * I/Os every 30 seconds, log error message, and wait forever. Only when
11709  * all XRI exchange busy complete, the driver unload shall proceed with
11710  * invoking the function reset ioctl mailbox command to the CNA and the
11711  * the rest of the driver unload resource release.
11712  **/
11713 static void
11714 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
11715 {
11716         struct lpfc_sli4_hdw_queue *qp;
11717         int idx, ccnt;
11718         int wait_time = 0;
11719         int io_xri_cmpl = 1;
11720         int nvmet_xri_cmpl = 1;
11721         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11722
11723         /* Driver just aborted IOs during the hba_unset process.  Pause
11724          * here to give the HBA time to complete the IO and get entries
11725          * into the abts lists.
11726          */
11727         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
11728
11729         /* Wait for NVME pending IO to flush back to transport. */
11730         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
11731                 lpfc_nvme_wait_for_io_drain(phba);
11732
11733         ccnt = 0;
11734         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11735                 qp = &phba->sli4_hba.hdwq[idx];
11736                 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
11737                 if (!io_xri_cmpl) /* if list is NOT empty */
11738                         ccnt++;
11739         }
11740         if (ccnt)
11741                 io_xri_cmpl = 0;
11742
11743         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11744                 nvmet_xri_cmpl =
11745                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11746         }
11747
11748         while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
11749                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
11750                         if (!nvmet_xri_cmpl)
11751                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11752                                                 "6424 NVMET XRI exchange busy "
11753                                                 "wait time: %d seconds.\n",
11754                                                 wait_time/1000);
11755                         if (!io_xri_cmpl)
11756                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11757                                                 "6100 IO XRI exchange busy "
11758                                                 "wait time: %d seconds.\n",
11759                                                 wait_time/1000);
11760                         if (!els_xri_cmpl)
11761                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11762                                                 "2878 ELS XRI exchange busy "
11763                                                 "wait time: %d seconds.\n",
11764                                                 wait_time/1000);
11765                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
11766                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
11767                 } else {
11768                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
11769                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
11770                 }
11771
11772                 ccnt = 0;
11773                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11774                         qp = &phba->sli4_hba.hdwq[idx];
11775                         io_xri_cmpl = list_empty(
11776                             &qp->lpfc_abts_io_buf_list);
11777                         if (!io_xri_cmpl) /* if list is NOT empty */
11778                                 ccnt++;
11779                 }
11780                 if (ccnt)
11781                         io_xri_cmpl = 0;
11782
11783                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11784                         nvmet_xri_cmpl = list_empty(
11785                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11786                 }
11787                 els_xri_cmpl =
11788                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11789
11790         }
11791 }
11792
11793 /**
11794  * lpfc_sli4_hba_unset - Unset the fcoe hba
11795  * @phba: Pointer to HBA context object.
11796  *
11797  * This function is called in the SLI4 code path to reset the HBA's FCoE
11798  * function. The caller is not required to hold any lock. This routine
11799  * issues PCI function reset mailbox command to reset the FCoE function.
11800  * At the end of the function, it calls lpfc_hba_down_post function to
11801  * free any pending commands.
11802  **/
11803 static void
11804 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
11805 {
11806         int wait_cnt = 0;
11807         LPFC_MBOXQ_t *mboxq;
11808         struct pci_dev *pdev = phba->pcidev;
11809
11810         lpfc_stop_hba_timers(phba);
11811         if (phba->pport)
11812                 phba->sli4_hba.intr_enable = 0;
11813
11814         /*
11815          * Gracefully wait out the potential current outstanding asynchronous
11816          * mailbox command.
11817          */
11818
11819         /* First, block any pending async mailbox command from posted */
11820         spin_lock_irq(&phba->hbalock);
11821         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11822         spin_unlock_irq(&phba->hbalock);
11823         /* Now, trying to wait it out if we can */
11824         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11825                 msleep(10);
11826                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
11827                         break;
11828         }
11829         /* Forcefully release the outstanding mailbox command if timed out */
11830         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11831                 spin_lock_irq(&phba->hbalock);
11832                 mboxq = phba->sli.mbox_active;
11833                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
11834                 __lpfc_mbox_cmpl_put(phba, mboxq);
11835                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11836                 phba->sli.mbox_active = NULL;
11837                 spin_unlock_irq(&phba->hbalock);
11838         }
11839
11840         /* Abort all iocbs associated with the hba */
11841         lpfc_sli_hba_iocb_abort(phba);
11842
11843         /* Wait for completion of device XRI exchange busy */
11844         lpfc_sli4_xri_exchange_busy_wait(phba);
11845
11846         /* per-phba callback de-registration for hotplug event */
11847         lpfc_cpuhp_remove(phba);
11848
11849         /* Disable PCI subsystem interrupt */
11850         lpfc_sli4_disable_intr(phba);
11851
11852         /* Disable SR-IOV if enabled */
11853         if (phba->cfg_sriov_nr_virtfn)
11854                 pci_disable_sriov(pdev);
11855
11856         /* Stop kthread signal shall trigger work_done one more time */
11857         kthread_stop(phba->worker_thread);
11858
11859         /* Disable FW logging to host memory */
11860         lpfc_ras_stop_fwlog(phba);
11861
11862         /* Unset the queues shared with the hardware then release all
11863          * allocated resources.
11864          */
11865         lpfc_sli4_queue_unset(phba);
11866         lpfc_sli4_queue_destroy(phba);
11867
11868         /* Reset SLI4 HBA FCoE function */
11869         lpfc_pci_function_reset(phba);
11870
11871         /* Free RAS DMA memory */
11872         if (phba->ras_fwlog.ras_enabled)
11873                 lpfc_sli4_ras_dma_free(phba);
11874
11875         /* Stop the SLI4 device port */
11876         if (phba->pport)
11877                 phba->pport->work_port_events = 0;
11878 }
11879
11880  /**
11881  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
11882  * @phba: Pointer to HBA context object.
11883  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11884  *
11885  * This function is called in the SLI4 code path to read the port's
11886  * sli4 capabilities.
11887  *
11888  * This function may be be called from any context that can block-wait
11889  * for the completion.  The expectation is that this routine is called
11890  * typically from probe_one or from the online routine.
11891  **/
11892 int
11893 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11894 {
11895         int rc;
11896         struct lpfc_mqe *mqe;
11897         struct lpfc_pc_sli4_params *sli4_params;
11898         uint32_t mbox_tmo;
11899
11900         rc = 0;
11901         mqe = &mboxq->u.mqe;
11902
11903         /* Read the port's SLI4 Parameters port capabilities */
11904         lpfc_pc_sli4_params(mboxq);
11905         if (!phba->sli4_hba.intr_enable)
11906                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11907         else {
11908                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11909                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11910         }
11911
11912         if (unlikely(rc))
11913                 return 1;
11914
11915         sli4_params = &phba->sli4_hba.pc_sli4_params;
11916         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
11917         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
11918         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
11919         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
11920                                              &mqe->un.sli4_params);
11921         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
11922                                              &mqe->un.sli4_params);
11923         sli4_params->proto_types = mqe->un.sli4_params.word3;
11924         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
11925         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
11926         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
11927         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
11928         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
11929         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
11930         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
11931         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
11932         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
11933         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
11934         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
11935         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
11936         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
11937         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
11938         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
11939         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
11940         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
11941         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
11942         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
11943         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
11944
11945         /* Make sure that sge_supp_len can be handled by the driver */
11946         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11947                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11948
11949         return rc;
11950 }
11951
11952 /**
11953  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
11954  * @phba: Pointer to HBA context object.
11955  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11956  *
11957  * This function is called in the SLI4 code path to read the port's
11958  * sli4 capabilities.
11959  *
11960  * This function may be be called from any context that can block-wait
11961  * for the completion.  The expectation is that this routine is called
11962  * typically from probe_one or from the online routine.
11963  **/
11964 int
11965 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11966 {
11967         int rc;
11968         struct lpfc_mqe *mqe = &mboxq->u.mqe;
11969         struct lpfc_pc_sli4_params *sli4_params;
11970         uint32_t mbox_tmo;
11971         int length;
11972         bool exp_wqcq_pages = true;
11973         struct lpfc_sli4_parameters *mbx_sli4_parameters;
11974
11975         /*
11976          * By default, the driver assumes the SLI4 port requires RPI
11977          * header postings.  The SLI4_PARAM response will correct this
11978          * assumption.
11979          */
11980         phba->sli4_hba.rpi_hdrs_in_use = 1;
11981
11982         /* Read the port's SLI4 Config Parameters */
11983         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
11984                   sizeof(struct lpfc_sli4_cfg_mhdr));
11985         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11986                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
11987                          length, LPFC_SLI4_MBX_EMBED);
11988         if (!phba->sli4_hba.intr_enable)
11989                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11990         else {
11991                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11992                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11993         }
11994         if (unlikely(rc))
11995                 return rc;
11996         sli4_params = &phba->sli4_hba.pc_sli4_params;
11997         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
11998         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
11999         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
12000         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
12001         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
12002                                              mbx_sli4_parameters);
12003         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
12004                                              mbx_sli4_parameters);
12005         if (bf_get(cfg_phwq, mbx_sli4_parameters))
12006                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
12007         else
12008                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
12009         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
12010         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
12011         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
12012         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
12013         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
12014         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
12015         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
12016         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
12017         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
12018         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
12019         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
12020         sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
12021         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
12022                                             mbx_sli4_parameters);
12023         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
12024         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
12025                                            mbx_sli4_parameters);
12026         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
12027         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
12028
12029         /* Check for Extended Pre-Registered SGL support */
12030         phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
12031
12032         /* Check for firmware nvme support */
12033         rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
12034                      bf_get(cfg_xib, mbx_sli4_parameters));
12035
12036         if (rc) {
12037                 /* Save this to indicate the Firmware supports NVME */
12038                 sli4_params->nvme = 1;
12039
12040                 /* Firmware NVME support, check driver FC4 NVME support */
12041                 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
12042                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
12043                                         "6133 Disabling NVME support: "
12044                                         "FC4 type not supported: x%x\n",
12045                                         phba->cfg_enable_fc4_type);
12046                         goto fcponly;
12047                 }
12048         } else {
12049                 /* No firmware NVME support, check driver FC4 NVME support */
12050                 sli4_params->nvme = 0;
12051                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12052                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
12053                                         "6101 Disabling NVME support: Not "
12054                                         "supported by firmware (%d %d) x%x\n",
12055                                         bf_get(cfg_nvme, mbx_sli4_parameters),
12056                                         bf_get(cfg_xib, mbx_sli4_parameters),
12057                                         phba->cfg_enable_fc4_type);
12058 fcponly:
12059                         phba->nvme_support = 0;
12060                         phba->nvmet_support = 0;
12061                         phba->cfg_nvmet_mrq = 0;
12062                         phba->cfg_nvme_seg_cnt = 0;
12063
12064                         /* If no FC4 type support, move to just SCSI support */
12065                         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
12066                                 return -ENODEV;
12067                         phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
12068                 }
12069         }
12070
12071         /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
12072          * accommodate 512K and 1M IOs in a single nvme buf.
12073          */
12074         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12075                 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
12076
12077         /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
12078         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
12079             LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
12080                 phba->cfg_enable_pbde = 0;
12081
12082         /*
12083          * To support Suppress Response feature we must satisfy 3 conditions.
12084          * lpfc_suppress_rsp module parameter must be set (default).
12085          * In SLI4-Parameters Descriptor:
12086          * Extended Inline Buffers (XIB) must be supported.
12087          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
12088          * (double negative).
12089          */
12090         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
12091             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
12092                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
12093         else
12094                 phba->cfg_suppress_rsp = 0;
12095
12096         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
12097                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
12098
12099         /* Make sure that sge_supp_len can be handled by the driver */
12100         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
12101                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
12102
12103         /*
12104          * Check whether the adapter supports an embedded copy of the
12105          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
12106          * to use this option, 128-byte WQEs must be used.
12107          */
12108         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
12109                 phba->fcp_embed_io = 1;
12110         else
12111                 phba->fcp_embed_io = 0;
12112
12113         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
12114                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
12115                         bf_get(cfg_xib, mbx_sli4_parameters),
12116                         phba->cfg_enable_pbde,
12117                         phba->fcp_embed_io, phba->nvme_support,
12118                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
12119
12120         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
12121             LPFC_SLI_INTF_IF_TYPE_2) &&
12122             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
12123                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
12124                 exp_wqcq_pages = false;
12125
12126         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
12127             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
12128             exp_wqcq_pages &&
12129             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
12130                 phba->enab_exp_wqcq_pages = 1;
12131         else
12132                 phba->enab_exp_wqcq_pages = 0;
12133         /*
12134          * Check if the SLI port supports MDS Diagnostics
12135          */
12136         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
12137                 phba->mds_diags_support = 1;
12138         else
12139                 phba->mds_diags_support = 0;
12140
12141         /*
12142          * Check if the SLI port supports NSLER
12143          */
12144         if (bf_get(cfg_nsler, mbx_sli4_parameters))
12145                 phba->nsler = 1;
12146         else
12147                 phba->nsler = 0;
12148
12149         return 0;
12150 }
12151
12152 /**
12153  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
12154  * @pdev: pointer to PCI device
12155  * @pid: pointer to PCI device identifier
12156  *
12157  * This routine is to be called to attach a device with SLI-3 interface spec
12158  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
12159  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12160  * information of the device and driver to see if the driver state that it can
12161  * support this kind of device. If the match is successful, the driver core
12162  * invokes this routine. If this routine determines it can claim the HBA, it
12163  * does all the initialization that it needs to do to handle the HBA properly.
12164  *
12165  * Return code
12166  *      0 - driver can claim the device
12167  *      negative value - driver can not claim the device
12168  **/
12169 static int
12170 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
12171 {
12172         struct lpfc_hba   *phba;
12173         struct lpfc_vport *vport = NULL;
12174         struct Scsi_Host  *shost = NULL;
12175         int error;
12176         uint32_t cfg_mode, intr_mode;
12177
12178         /* Allocate memory for HBA structure */
12179         phba = lpfc_hba_alloc(pdev);
12180         if (!phba)
12181                 return -ENOMEM;
12182
12183         /* Perform generic PCI device enabling operation */
12184         error = lpfc_enable_pci_dev(phba);
12185         if (error)
12186                 goto out_free_phba;
12187
12188         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
12189         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
12190         if (error)
12191                 goto out_disable_pci_dev;
12192
12193         /* Set up SLI-3 specific device PCI memory space */
12194         error = lpfc_sli_pci_mem_setup(phba);
12195         if (error) {
12196                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12197                                 "1402 Failed to set up pci memory space.\n");
12198                 goto out_disable_pci_dev;
12199         }
12200
12201         /* Set up SLI-3 specific device driver resources */
12202         error = lpfc_sli_driver_resource_setup(phba);
12203         if (error) {
12204                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12205                                 "1404 Failed to set up driver resource.\n");
12206                 goto out_unset_pci_mem_s3;
12207         }
12208
12209         /* Initialize and populate the iocb list per host */
12210
12211         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
12212         if (error) {
12213                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12214                                 "1405 Failed to initialize iocb list.\n");
12215                 goto out_unset_driver_resource_s3;
12216         }
12217
12218         /* Set up common device driver resources */
12219         error = lpfc_setup_driver_resource_phase2(phba);
12220         if (error) {
12221                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12222                                 "1406 Failed to set up driver resource.\n");
12223                 goto out_free_iocb_list;
12224         }
12225
12226         /* Get the default values for Model Name and Description */
12227         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
12228
12229         /* Create SCSI host to the physical port */
12230         error = lpfc_create_shost(phba);
12231         if (error) {
12232                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12233                                 "1407 Failed to create scsi host.\n");
12234                 goto out_unset_driver_resource;
12235         }
12236
12237         /* Configure sysfs attributes */
12238         vport = phba->pport;
12239         error = lpfc_alloc_sysfs_attr(vport);
12240         if (error) {
12241                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12242                                 "1476 Failed to allocate sysfs attr\n");
12243                 goto out_destroy_shost;
12244         }
12245
12246         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
12247         /* Now, trying to enable interrupt and bring up the device */
12248         cfg_mode = phba->cfg_use_msi;
12249         while (true) {
12250                 /* Put device to a known state before enabling interrupt */
12251                 lpfc_stop_port(phba);
12252                 /* Configure and enable interrupt */
12253                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
12254                 if (intr_mode == LPFC_INTR_ERROR) {
12255                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12256                                         "0431 Failed to enable interrupt.\n");
12257                         error = -ENODEV;
12258                         goto out_free_sysfs_attr;
12259                 }
12260                 /* SLI-3 HBA setup */
12261                 if (lpfc_sli_hba_setup(phba)) {
12262                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12263                                         "1477 Failed to set up hba\n");
12264                         error = -ENODEV;
12265                         goto out_remove_device;
12266                 }
12267
12268                 /* Wait 50ms for the interrupts of previous mailbox commands */
12269                 msleep(50);
12270                 /* Check active interrupts on message signaled interrupts */
12271                 if (intr_mode == 0 ||
12272                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
12273                         /* Log the current active interrupt mode */
12274                         phba->intr_mode = intr_mode;
12275                         lpfc_log_intr_mode(phba, intr_mode);
12276                         break;
12277                 } else {
12278                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12279                                         "0447 Configure interrupt mode (%d) "
12280                                         "failed active interrupt test.\n",
12281                                         intr_mode);
12282                         /* Disable the current interrupt mode */
12283                         lpfc_sli_disable_intr(phba);
12284                         /* Try next level of interrupt mode */
12285                         cfg_mode = --intr_mode;
12286                 }
12287         }
12288
12289         /* Perform post initialization setup */
12290         lpfc_post_init_setup(phba);
12291
12292         /* Check if there are static vports to be created. */
12293         lpfc_create_static_vport(phba);
12294
12295         return 0;
12296
12297 out_remove_device:
12298         lpfc_unset_hba(phba);
12299 out_free_sysfs_attr:
12300         lpfc_free_sysfs_attr(vport);
12301 out_destroy_shost:
12302         lpfc_destroy_shost(phba);
12303 out_unset_driver_resource:
12304         lpfc_unset_driver_resource_phase2(phba);
12305 out_free_iocb_list:
12306         lpfc_free_iocb_list(phba);
12307 out_unset_driver_resource_s3:
12308         lpfc_sli_driver_resource_unset(phba);
12309 out_unset_pci_mem_s3:
12310         lpfc_sli_pci_mem_unset(phba);
12311 out_disable_pci_dev:
12312         lpfc_disable_pci_dev(phba);
12313         if (shost)
12314                 scsi_host_put(shost);
12315 out_free_phba:
12316         lpfc_hba_free(phba);
12317         return error;
12318 }
12319
12320 /**
12321  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
12322  * @pdev: pointer to PCI device
12323  *
12324  * This routine is to be called to disattach a device with SLI-3 interface
12325  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
12326  * removed from PCI bus, it performs all the necessary cleanup for the HBA
12327  * device to be removed from the PCI subsystem properly.
12328  **/
12329 static void
12330 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
12331 {
12332         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
12333         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
12334         struct lpfc_vport **vports;
12335         struct lpfc_hba   *phba = vport->phba;
12336         int i;
12337
12338         spin_lock_irq(&phba->hbalock);
12339         vport->load_flag |= FC_UNLOADING;
12340         spin_unlock_irq(&phba->hbalock);
12341
12342         lpfc_free_sysfs_attr(vport);
12343
12344         /* Release all the vports against this physical port */
12345         vports = lpfc_create_vport_work_array(phba);
12346         if (vports != NULL)
12347                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
12348                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
12349                                 continue;
12350                         fc_vport_terminate(vports[i]->fc_vport);
12351                 }
12352         lpfc_destroy_vport_work_array(phba, vports);
12353
12354         /* Remove FC host and then SCSI host with the physical port */
12355         fc_remove_host(shost);
12356         scsi_remove_host(shost);
12357
12358         lpfc_cleanup(vport);
12359
12360         /*
12361          * Bring down the SLI Layer. This step disable all interrupts,
12362          * clears the rings, discards all mailbox commands, and resets
12363          * the HBA.
12364          */
12365
12366         /* HBA interrupt will be disabled after this call */
12367         lpfc_sli_hba_down(phba);
12368         /* Stop kthread signal shall trigger work_done one more time */
12369         kthread_stop(phba->worker_thread);
12370         /* Final cleanup of txcmplq and reset the HBA */
12371         lpfc_sli_brdrestart(phba);
12372
12373         kfree(phba->vpi_bmask);
12374         kfree(phba->vpi_ids);
12375
12376         lpfc_stop_hba_timers(phba);
12377         spin_lock_irq(&phba->port_list_lock);
12378         list_del_init(&vport->listentry);
12379         spin_unlock_irq(&phba->port_list_lock);
12380
12381         lpfc_debugfs_terminate(vport);
12382
12383         /* Disable SR-IOV if enabled */
12384         if (phba->cfg_sriov_nr_virtfn)
12385                 pci_disable_sriov(pdev);
12386
12387         /* Disable interrupt */
12388         lpfc_sli_disable_intr(phba);
12389
12390         scsi_host_put(shost);
12391
12392         /*
12393          * Call scsi_free before mem_free since scsi bufs are released to their
12394          * corresponding pools here.
12395          */
12396         lpfc_scsi_free(phba);
12397         lpfc_free_iocb_list(phba);
12398
12399         lpfc_mem_free_all(phba);
12400
12401         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
12402                           phba->hbqslimp.virt, phba->hbqslimp.phys);
12403
12404         /* Free resources associated with SLI2 interface */
12405         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
12406                           phba->slim2p.virt, phba->slim2p.phys);
12407
12408         /* unmap adapter SLIM and Control Registers */
12409         iounmap(phba->ctrl_regs_memmap_p);
12410         iounmap(phba->slim_memmap_p);
12411
12412         lpfc_hba_free(phba);
12413
12414         pci_release_mem_regions(pdev);
12415         pci_disable_device(pdev);
12416 }
12417
12418 /**
12419  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
12420  * @pdev: pointer to PCI device
12421  * @msg: power management message
12422  *
12423  * This routine is to be called from the kernel's PCI subsystem to support
12424  * system Power Management (PM) to device with SLI-3 interface spec. When
12425  * PM invokes this method, it quiesces the device by stopping the driver's
12426  * worker thread for the device, turning off device's interrupt and DMA,
12427  * and bring the device offline. Note that as the driver implements the
12428  * minimum PM requirements to a power-aware driver's PM support for the
12429  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12430  * to the suspend() method call will be treated as SUSPEND and the driver will
12431  * fully reinitialize its device during resume() method call, the driver will
12432  * set device to PCI_D3hot state in PCI config space instead of setting it
12433  * according to the @msg provided by the PM.
12434  *
12435  * Return code
12436  *      0 - driver suspended the device
12437  *      Error otherwise
12438  **/
12439 static int
12440 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
12441 {
12442         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12443         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12444
12445         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12446                         "0473 PCI device Power Management suspend.\n");
12447
12448         /* Bring down the device */
12449         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12450         lpfc_offline(phba);
12451         kthread_stop(phba->worker_thread);
12452
12453         /* Disable interrupt from device */
12454         lpfc_sli_disable_intr(phba);
12455
12456         /* Save device state to PCI config space */
12457         pci_save_state(pdev);
12458         pci_set_power_state(pdev, PCI_D3hot);
12459
12460         return 0;
12461 }
12462
12463 /**
12464  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
12465  * @pdev: pointer to PCI device
12466  *
12467  * This routine is to be called from the kernel's PCI subsystem to support
12468  * system Power Management (PM) to device with SLI-3 interface spec. When PM
12469  * invokes this method, it restores the device's PCI config space state and
12470  * fully reinitializes the device and brings it online. Note that as the
12471  * driver implements the minimum PM requirements to a power-aware driver's
12472  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
12473  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
12474  * driver will fully reinitialize its device during resume() method call,
12475  * the device will be set to PCI_D0 directly in PCI config space before
12476  * restoring the state.
12477  *
12478  * Return code
12479  *      0 - driver suspended the device
12480  *      Error otherwise
12481  **/
12482 static int
12483 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
12484 {
12485         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12486         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12487         uint32_t intr_mode;
12488         int error;
12489
12490         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12491                         "0452 PCI device Power Management resume.\n");
12492
12493         /* Restore device state from PCI config space */
12494         pci_set_power_state(pdev, PCI_D0);
12495         pci_restore_state(pdev);
12496
12497         /*
12498          * As the new kernel behavior of pci_restore_state() API call clears
12499          * device saved_state flag, need to save the restored state again.
12500          */
12501         pci_save_state(pdev);
12502
12503         if (pdev->is_busmaster)
12504                 pci_set_master(pdev);
12505
12506         /* Startup the kernel thread for this host adapter. */
12507         phba->worker_thread = kthread_run(lpfc_do_work, phba,
12508                                         "lpfc_worker_%d", phba->brd_no);
12509         if (IS_ERR(phba->worker_thread)) {
12510                 error = PTR_ERR(phba->worker_thread);
12511                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12512                                 "0434 PM resume failed to start worker "
12513                                 "thread: error=x%x.\n", error);
12514                 return error;
12515         }
12516
12517         /* Configure and enable interrupt */
12518         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12519         if (intr_mode == LPFC_INTR_ERROR) {
12520                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12521                                 "0430 PM resume Failed to enable interrupt\n");
12522                 return -EIO;
12523         } else
12524                 phba->intr_mode = intr_mode;
12525
12526         /* Restart HBA and bring it online */
12527         lpfc_sli_brdrestart(phba);
12528         lpfc_online(phba);
12529
12530         /* Log the current active interrupt mode */
12531         lpfc_log_intr_mode(phba, phba->intr_mode);
12532
12533         return 0;
12534 }
12535
12536 /**
12537  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
12538  * @phba: pointer to lpfc hba data structure.
12539  *
12540  * This routine is called to prepare the SLI3 device for PCI slot recover. It
12541  * aborts all the outstanding SCSI I/Os to the pci device.
12542  **/
12543 static void
12544 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
12545 {
12546         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12547                         "2723 PCI channel I/O abort preparing for recovery\n");
12548
12549         /*
12550          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12551          * and let the SCSI mid-layer to retry them to recover.
12552          */
12553         lpfc_sli_abort_fcp_rings(phba);
12554 }
12555
12556 /**
12557  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
12558  * @phba: pointer to lpfc hba data structure.
12559  *
12560  * This routine is called to prepare the SLI3 device for PCI slot reset. It
12561  * disables the device interrupt and pci device, and aborts the internal FCP
12562  * pending I/Os.
12563  **/
12564 static void
12565 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
12566 {
12567         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12568                         "2710 PCI channel disable preparing for reset\n");
12569
12570         /* Block any management I/Os to the device */
12571         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
12572
12573         /* Block all SCSI devices' I/Os on the host */
12574         lpfc_scsi_dev_block(phba);
12575
12576         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12577         lpfc_sli_flush_io_rings(phba);
12578
12579         /* stop all timers */
12580         lpfc_stop_hba_timers(phba);
12581
12582         /* Disable interrupt and pci device */
12583         lpfc_sli_disable_intr(phba);
12584         pci_disable_device(phba->pcidev);
12585 }
12586
12587 /**
12588  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
12589  * @phba: pointer to lpfc hba data structure.
12590  *
12591  * This routine is called to prepare the SLI3 device for PCI slot permanently
12592  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12593  * pending I/Os.
12594  **/
12595 static void
12596 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12597 {
12598         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12599                         "2711 PCI channel permanent disable for failure\n");
12600         /* Block all SCSI devices' I/Os on the host */
12601         lpfc_scsi_dev_block(phba);
12602
12603         /* stop all timers */
12604         lpfc_stop_hba_timers(phba);
12605
12606         /* Clean up all driver's outstanding SCSI I/Os */
12607         lpfc_sli_flush_io_rings(phba);
12608 }
12609
12610 /**
12611  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
12612  * @pdev: pointer to PCI device.
12613  * @state: the current PCI connection state.
12614  *
12615  * This routine is called from the PCI subsystem for I/O error handling to
12616  * device with SLI-3 interface spec. This function is called by the PCI
12617  * subsystem after a PCI bus error affecting this device has been detected.
12618  * When this function is invoked, it will need to stop all the I/Os and
12619  * interrupt(s) to the device. Once that is done, it will return
12620  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
12621  * as desired.
12622  *
12623  * Return codes
12624  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
12625  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12626  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12627  **/
12628 static pci_ers_result_t
12629 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
12630 {
12631         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12632         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12633
12634         switch (state) {
12635         case pci_channel_io_normal:
12636                 /* Non-fatal error, prepare for recovery */
12637                 lpfc_sli_prep_dev_for_recover(phba);
12638                 return PCI_ERS_RESULT_CAN_RECOVER;
12639         case pci_channel_io_frozen:
12640                 /* Fatal error, prepare for slot reset */
12641                 lpfc_sli_prep_dev_for_reset(phba);
12642                 return PCI_ERS_RESULT_NEED_RESET;
12643         case pci_channel_io_perm_failure:
12644                 /* Permanent failure, prepare for device down */
12645                 lpfc_sli_prep_dev_for_perm_failure(phba);
12646                 return PCI_ERS_RESULT_DISCONNECT;
12647         default:
12648                 /* Unknown state, prepare and request slot reset */
12649                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12650                                 "0472 Unknown PCI error state: x%x\n", state);
12651                 lpfc_sli_prep_dev_for_reset(phba);
12652                 return PCI_ERS_RESULT_NEED_RESET;
12653         }
12654 }
12655
12656 /**
12657  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
12658  * @pdev: pointer to PCI device.
12659  *
12660  * This routine is called from the PCI subsystem for error handling to
12661  * device with SLI-3 interface spec. This is called after PCI bus has been
12662  * reset to restart the PCI card from scratch, as if from a cold-boot.
12663  * During the PCI subsystem error recovery, after driver returns
12664  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12665  * recovery and then call this routine before calling the .resume method
12666  * to recover the device. This function will initialize the HBA device,
12667  * enable the interrupt, but it will just put the HBA to offline state
12668  * without passing any I/O traffic.
12669  *
12670  * Return codes
12671  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12672  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12673  */
12674 static pci_ers_result_t
12675 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
12676 {
12677         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12678         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12679         struct lpfc_sli *psli = &phba->sli;
12680         uint32_t intr_mode;
12681
12682         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12683         if (pci_enable_device_mem(pdev)) {
12684                 printk(KERN_ERR "lpfc: Cannot re-enable "
12685                         "PCI device after reset.\n");
12686                 return PCI_ERS_RESULT_DISCONNECT;
12687         }
12688
12689         pci_restore_state(pdev);
12690
12691         /*
12692          * As the new kernel behavior of pci_restore_state() API call clears
12693          * device saved_state flag, need to save the restored state again.
12694          */
12695         pci_save_state(pdev);
12696
12697         if (pdev->is_busmaster)
12698                 pci_set_master(pdev);
12699
12700         spin_lock_irq(&phba->hbalock);
12701         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12702         spin_unlock_irq(&phba->hbalock);
12703
12704         /* Configure and enable interrupt */
12705         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
12706         if (intr_mode == LPFC_INTR_ERROR) {
12707                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12708                                 "0427 Cannot re-enable interrupt after "
12709                                 "slot reset.\n");
12710                 return PCI_ERS_RESULT_DISCONNECT;
12711         } else
12712                 phba->intr_mode = intr_mode;
12713
12714         /* Take device offline, it will perform cleanup */
12715         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12716         lpfc_offline(phba);
12717         lpfc_sli_brdrestart(phba);
12718
12719         /* Log the current active interrupt mode */
12720         lpfc_log_intr_mode(phba, phba->intr_mode);
12721
12722         return PCI_ERS_RESULT_RECOVERED;
12723 }
12724
12725 /**
12726  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
12727  * @pdev: pointer to PCI device
12728  *
12729  * This routine is called from the PCI subsystem for error handling to device
12730  * with SLI-3 interface spec. It is called when kernel error recovery tells
12731  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12732  * error recovery. After this call, traffic can start to flow from this device
12733  * again.
12734  */
12735 static void
12736 lpfc_io_resume_s3(struct pci_dev *pdev)
12737 {
12738         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12739         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12740
12741         /* Bring device online, it will be no-op for non-fatal error resume */
12742         lpfc_online(phba);
12743 }
12744
12745 /**
12746  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
12747  * @phba: pointer to lpfc hba data structure.
12748  *
12749  * returns the number of ELS/CT IOCBs to reserve
12750  **/
12751 int
12752 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
12753 {
12754         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
12755
12756         if (phba->sli_rev == LPFC_SLI_REV4) {
12757                 if (max_xri <= 100)
12758                         return 10;
12759                 else if (max_xri <= 256)
12760                         return 25;
12761                 else if (max_xri <= 512)
12762                         return 50;
12763                 else if (max_xri <= 1024)
12764                         return 100;
12765                 else if (max_xri <= 1536)
12766                         return 150;
12767                 else if (max_xri <= 2048)
12768                         return 200;
12769                 else
12770                         return 250;
12771         } else
12772                 return 0;
12773 }
12774
12775 /**
12776  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
12777  * @phba: pointer to lpfc hba data structure.
12778  *
12779  * returns the number of ELS/CT + NVMET IOCBs to reserve
12780  **/
12781 int
12782 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
12783 {
12784         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
12785
12786         if (phba->nvmet_support)
12787                 max_xri += LPFC_NVMET_BUF_POST;
12788         return max_xri;
12789 }
12790
12791
12792 static int
12793 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
12794         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
12795         const struct firmware *fw)
12796 {
12797         int rc;
12798
12799         /* Three cases:  (1) FW was not supported on the detected adapter.
12800          * (2) FW update has been locked out administratively.
12801          * (3) Some other error during FW update.
12802          * In each case, an unmaskable message is written to the console
12803          * for admin diagnosis.
12804          */
12805         if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
12806             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
12807              magic_number != MAGIC_NUMBER_G6) ||
12808             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
12809              magic_number != MAGIC_NUMBER_G7)) {
12810                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12811                                 "3030 This firmware version is not supported on"
12812                                 " this HBA model. Device:%x Magic:%x Type:%x "
12813                                 "ID:%x Size %d %zd\n",
12814                                 phba->pcidev->device, magic_number, ftype, fid,
12815                                 fsize, fw->size);
12816                 rc = -EINVAL;
12817         } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
12818                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12819                                 "3021 Firmware downloads have been prohibited "
12820                                 "by a system configuration setting on "
12821                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
12822                                 "%zd\n",
12823                                 phba->pcidev->device, magic_number, ftype, fid,
12824                                 fsize, fw->size);
12825                 rc = -EACCES;
12826         } else {
12827                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12828                                 "3022 FW Download failed. Add Status x%x "
12829                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
12830                                 "%zd\n",
12831                                 offset, phba->pcidev->device, magic_number,
12832                                 ftype, fid, fsize, fw->size);
12833                 rc = -EIO;
12834         }
12835         return rc;
12836 }
12837
12838 /**
12839  * lpfc_write_firmware - attempt to write a firmware image to the port
12840  * @fw: pointer to firmware image returned from request_firmware.
12841  * @context: pointer to firmware image returned from request_firmware.
12842  * @ret: return value this routine provides to the caller.
12843  *
12844  **/
12845 static void
12846 lpfc_write_firmware(const struct firmware *fw, void *context)
12847 {
12848         struct lpfc_hba *phba = (struct lpfc_hba *)context;
12849         char fwrev[FW_REV_STR_SIZE];
12850         struct lpfc_grp_hdr *image;
12851         struct list_head dma_buffer_list;
12852         int i, rc = 0;
12853         struct lpfc_dmabuf *dmabuf, *next;
12854         uint32_t offset = 0, temp_offset = 0;
12855         uint32_t magic_number, ftype, fid, fsize;
12856
12857         /* It can be null in no-wait mode, sanity check */
12858         if (!fw) {
12859                 rc = -ENXIO;
12860                 goto out;
12861         }
12862         image = (struct lpfc_grp_hdr *)fw->data;
12863
12864         magic_number = be32_to_cpu(image->magic_number);
12865         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
12866         fid = bf_get_be32(lpfc_grp_hdr_id, image);
12867         fsize = be32_to_cpu(image->size);
12868
12869         INIT_LIST_HEAD(&dma_buffer_list);
12870         lpfc_decode_firmware_rev(phba, fwrev, 1);
12871         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
12872                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12873                                 "3023 Updating Firmware, Current Version:%s "
12874                                 "New Version:%s\n",
12875                                 fwrev, image->revision);
12876                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
12877                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
12878                                          GFP_KERNEL);
12879                         if (!dmabuf) {
12880                                 rc = -ENOMEM;
12881                                 goto release_out;
12882                         }
12883                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12884                                                           SLI4_PAGE_SIZE,
12885                                                           &dmabuf->phys,
12886                                                           GFP_KERNEL);
12887                         if (!dmabuf->virt) {
12888                                 kfree(dmabuf);
12889                                 rc = -ENOMEM;
12890                                 goto release_out;
12891                         }
12892                         list_add_tail(&dmabuf->list, &dma_buffer_list);
12893                 }
12894                 while (offset < fw->size) {
12895                         temp_offset = offset;
12896                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
12897                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
12898                                         memcpy(dmabuf->virt,
12899                                                fw->data + temp_offset,
12900                                                fw->size - temp_offset);
12901                                         temp_offset = fw->size;
12902                                         break;
12903                                 }
12904                                 memcpy(dmabuf->virt, fw->data + temp_offset,
12905                                        SLI4_PAGE_SIZE);
12906                                 temp_offset += SLI4_PAGE_SIZE;
12907                         }
12908                         rc = lpfc_wr_object(phba, &dma_buffer_list,
12909                                     (fw->size - offset), &offset);
12910                         if (rc) {
12911                                 rc = lpfc_log_write_firmware_error(phba, offset,
12912                                                                    magic_number,
12913                                                                    ftype,
12914                                                                    fid,
12915                                                                    fsize,
12916                                                                    fw);
12917                                 goto release_out;
12918                         }
12919                 }
12920                 rc = offset;
12921         } else
12922                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12923                                 "3029 Skipped Firmware update, Current "
12924                                 "Version:%s New Version:%s\n",
12925                                 fwrev, image->revision);
12926
12927 release_out:
12928         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
12929                 list_del(&dmabuf->list);
12930                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
12931                                   dmabuf->virt, dmabuf->phys);
12932                 kfree(dmabuf);
12933         }
12934         release_firmware(fw);
12935 out:
12936         if (rc < 0)
12937                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12938                                 "3062 Firmware update error, status %d.\n", rc);
12939         else
12940                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12941                                 "3024 Firmware update success: size %d.\n", rc);
12942 }
12943
12944 /**
12945  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
12946  * @phba: pointer to lpfc hba data structure.
12947  *
12948  * This routine is called to perform Linux generic firmware upgrade on device
12949  * that supports such feature.
12950  **/
12951 int
12952 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
12953 {
12954         uint8_t file_name[ELX_MODEL_NAME_SIZE];
12955         int ret;
12956         const struct firmware *fw;
12957
12958         /* Only supported on SLI4 interface type 2 for now */
12959         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
12960             LPFC_SLI_INTF_IF_TYPE_2)
12961                 return -EPERM;
12962
12963         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
12964
12965         if (fw_upgrade == INT_FW_UPGRADE) {
12966                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
12967                                         file_name, &phba->pcidev->dev,
12968                                         GFP_KERNEL, (void *)phba,
12969                                         lpfc_write_firmware);
12970         } else if (fw_upgrade == RUN_FW_UPGRADE) {
12971                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
12972                 if (!ret)
12973                         lpfc_write_firmware(fw, (void *)phba);
12974         } else {
12975                 ret = -EINVAL;
12976         }
12977
12978         return ret;
12979 }
12980
12981 /**
12982  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
12983  * @pdev: pointer to PCI device
12984  * @pid: pointer to PCI device identifier
12985  *
12986  * This routine is called from the kernel's PCI subsystem to device with
12987  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12988  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12989  * information of the device and driver to see if the driver state that it
12990  * can support this kind of device. If the match is successful, the driver
12991  * core invokes this routine. If this routine determines it can claim the HBA,
12992  * it does all the initialization that it needs to do to handle the HBA
12993  * properly.
12994  *
12995  * Return code
12996  *      0 - driver can claim the device
12997  *      negative value - driver can not claim the device
12998  **/
12999 static int
13000 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
13001 {
13002         struct lpfc_hba   *phba;
13003         struct lpfc_vport *vport = NULL;
13004         struct Scsi_Host  *shost = NULL;
13005         int error;
13006         uint32_t cfg_mode, intr_mode;
13007
13008         /* Allocate memory for HBA structure */
13009         phba = lpfc_hba_alloc(pdev);
13010         if (!phba)
13011                 return -ENOMEM;
13012
13013         /* Perform generic PCI device enabling operation */
13014         error = lpfc_enable_pci_dev(phba);
13015         if (error)
13016                 goto out_free_phba;
13017
13018         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
13019         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
13020         if (error)
13021                 goto out_disable_pci_dev;
13022
13023         /* Set up SLI-4 specific device PCI memory space */
13024         error = lpfc_sli4_pci_mem_setup(phba);
13025         if (error) {
13026                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13027                                 "1410 Failed to set up pci memory space.\n");
13028                 goto out_disable_pci_dev;
13029         }
13030
13031         /* Set up SLI-4 Specific device driver resources */
13032         error = lpfc_sli4_driver_resource_setup(phba);
13033         if (error) {
13034                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13035                                 "1412 Failed to set up driver resource.\n");
13036                 goto out_unset_pci_mem_s4;
13037         }
13038
13039         INIT_LIST_HEAD(&phba->active_rrq_list);
13040         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
13041
13042         /* Set up common device driver resources */
13043         error = lpfc_setup_driver_resource_phase2(phba);
13044         if (error) {
13045                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13046                                 "1414 Failed to set up driver resource.\n");
13047                 goto out_unset_driver_resource_s4;
13048         }
13049
13050         /* Get the default values for Model Name and Description */
13051         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13052
13053         /* Now, trying to enable interrupt and bring up the device */
13054         cfg_mode = phba->cfg_use_msi;
13055
13056         /* Put device to a known state before enabling interrupt */
13057         phba->pport = NULL;
13058         lpfc_stop_port(phba);
13059
13060         /* Init cpu_map array */
13061         lpfc_cpu_map_array_init(phba);
13062
13063         /* Init hba_eq_hdl array */
13064         lpfc_hba_eq_hdl_array_init(phba);
13065
13066         /* Configure and enable interrupt */
13067         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
13068         if (intr_mode == LPFC_INTR_ERROR) {
13069                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13070                                 "0426 Failed to enable interrupt.\n");
13071                 error = -ENODEV;
13072                 goto out_unset_driver_resource;
13073         }
13074         /* Default to single EQ for non-MSI-X */
13075         if (phba->intr_type != MSIX) {
13076                 phba->cfg_irq_chann = 1;
13077                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13078                         if (phba->nvmet_support)
13079                                 phba->cfg_nvmet_mrq = 1;
13080                 }
13081         }
13082         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
13083
13084         /* Create SCSI host to the physical port */
13085         error = lpfc_create_shost(phba);
13086         if (error) {
13087                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13088                                 "1415 Failed to create scsi host.\n");
13089                 goto out_disable_intr;
13090         }
13091         vport = phba->pport;
13092         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
13093
13094         /* Configure sysfs attributes */
13095         error = lpfc_alloc_sysfs_attr(vport);
13096         if (error) {
13097                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13098                                 "1416 Failed to allocate sysfs attr\n");
13099                 goto out_destroy_shost;
13100         }
13101
13102         /* Set up SLI-4 HBA */
13103         if (lpfc_sli4_hba_setup(phba)) {
13104                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13105                                 "1421 Failed to set up hba\n");
13106                 error = -ENODEV;
13107                 goto out_free_sysfs_attr;
13108         }
13109
13110         /* Log the current active interrupt mode */
13111         phba->intr_mode = intr_mode;
13112         lpfc_log_intr_mode(phba, intr_mode);
13113
13114         /* Perform post initialization setup */
13115         lpfc_post_init_setup(phba);
13116
13117         /* NVME support in FW earlier in the driver load corrects the
13118          * FC4 type making a check for nvme_support unnecessary.
13119          */
13120         if (phba->nvmet_support == 0) {
13121                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13122                         /* Create NVME binding with nvme_fc_transport. This
13123                          * ensures the vport is initialized.  If the localport
13124                          * create fails, it should not unload the driver to
13125                          * support field issues.
13126                          */
13127                         error = lpfc_nvme_create_localport(vport);
13128                         if (error) {
13129                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13130                                                 "6004 NVME registration "
13131                                                 "failed, error x%x\n",
13132                                                 error);
13133                         }
13134                 }
13135         }
13136
13137         /* check for firmware upgrade or downgrade */
13138         if (phba->cfg_request_firmware_upgrade)
13139                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
13140
13141         /* Check if there are static vports to be created. */
13142         lpfc_create_static_vport(phba);
13143
13144         /* Enable RAS FW log support */
13145         lpfc_sli4_ras_setup(phba);
13146
13147         INIT_LIST_HEAD(&phba->poll_list);
13148         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
13149
13150         return 0;
13151
13152 out_free_sysfs_attr:
13153         lpfc_free_sysfs_attr(vport);
13154 out_destroy_shost:
13155         lpfc_destroy_shost(phba);
13156 out_disable_intr:
13157         lpfc_sli4_disable_intr(phba);
13158 out_unset_driver_resource:
13159         lpfc_unset_driver_resource_phase2(phba);
13160 out_unset_driver_resource_s4:
13161         lpfc_sli4_driver_resource_unset(phba);
13162 out_unset_pci_mem_s4:
13163         lpfc_sli4_pci_mem_unset(phba);
13164 out_disable_pci_dev:
13165         lpfc_disable_pci_dev(phba);
13166         if (shost)
13167                 scsi_host_put(shost);
13168 out_free_phba:
13169         lpfc_hba_free(phba);
13170         return error;
13171 }
13172
13173 /**
13174  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
13175  * @pdev: pointer to PCI device
13176  *
13177  * This routine is called from the kernel's PCI subsystem to device with
13178  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
13179  * removed from PCI bus, it performs all the necessary cleanup for the HBA
13180  * device to be removed from the PCI subsystem properly.
13181  **/
13182 static void
13183 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
13184 {
13185         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13186         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
13187         struct lpfc_vport **vports;
13188         struct lpfc_hba *phba = vport->phba;
13189         int i;
13190
13191         /* Mark the device unloading flag */
13192         spin_lock_irq(&phba->hbalock);
13193         vport->load_flag |= FC_UNLOADING;
13194         spin_unlock_irq(&phba->hbalock);
13195
13196         /* Free the HBA sysfs attributes */
13197         lpfc_free_sysfs_attr(vport);
13198
13199         /* Release all the vports against this physical port */
13200         vports = lpfc_create_vport_work_array(phba);
13201         if (vports != NULL)
13202                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
13203                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
13204                                 continue;
13205                         fc_vport_terminate(vports[i]->fc_vport);
13206                 }
13207         lpfc_destroy_vport_work_array(phba, vports);
13208
13209         /* Remove FC host and then SCSI host with the physical port */
13210         fc_remove_host(shost);
13211         scsi_remove_host(shost);
13212
13213         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
13214          * localports are destroyed after to cleanup all transport memory.
13215          */
13216         lpfc_cleanup(vport);
13217         lpfc_nvmet_destroy_targetport(phba);
13218         lpfc_nvme_destroy_localport(vport);
13219
13220         /* De-allocate multi-XRI pools */
13221         if (phba->cfg_xri_rebalancing)
13222                 lpfc_destroy_multixri_pools(phba);
13223
13224         /*
13225          * Bring down the SLI Layer. This step disables all interrupts,
13226          * clears the rings, discards all mailbox commands, and resets
13227          * the HBA FCoE function.
13228          */
13229         lpfc_debugfs_terminate(vport);
13230
13231         lpfc_stop_hba_timers(phba);
13232         spin_lock_irq(&phba->port_list_lock);
13233         list_del_init(&vport->listentry);
13234         spin_unlock_irq(&phba->port_list_lock);
13235
13236         /* Perform scsi free before driver resource_unset since scsi
13237          * buffers are released to their corresponding pools here.
13238          */
13239         lpfc_io_free(phba);
13240         lpfc_free_iocb_list(phba);
13241         lpfc_sli4_hba_unset(phba);
13242
13243         lpfc_unset_driver_resource_phase2(phba);
13244         lpfc_sli4_driver_resource_unset(phba);
13245
13246         /* Unmap adapter Control and Doorbell registers */
13247         lpfc_sli4_pci_mem_unset(phba);
13248
13249         /* Release PCI resources and disable device's PCI function */
13250         scsi_host_put(shost);
13251         lpfc_disable_pci_dev(phba);
13252
13253         /* Finally, free the driver's device data structure */
13254         lpfc_hba_free(phba);
13255
13256         return;
13257 }
13258
13259 /**
13260  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
13261  * @pdev: pointer to PCI device
13262  * @msg: power management message
13263  *
13264  * This routine is called from the kernel's PCI subsystem to support system
13265  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
13266  * this method, it quiesces the device by stopping the driver's worker
13267  * thread for the device, turning off device's interrupt and DMA, and bring
13268  * the device offline. Note that as the driver implements the minimum PM
13269  * requirements to a power-aware driver's PM support for suspend/resume -- all
13270  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
13271  * method call will be treated as SUSPEND and the driver will fully
13272  * reinitialize its device during resume() method call, the driver will set
13273  * device to PCI_D3hot state in PCI config space instead of setting it
13274  * according to the @msg provided by the PM.
13275  *
13276  * Return code
13277  *      0 - driver suspended the device
13278  *      Error otherwise
13279  **/
13280 static int
13281 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
13282 {
13283         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13284         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13285
13286         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13287                         "2843 PCI device Power Management suspend.\n");
13288
13289         /* Bring down the device */
13290         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13291         lpfc_offline(phba);
13292         kthread_stop(phba->worker_thread);
13293
13294         /* Disable interrupt from device */
13295         lpfc_sli4_disable_intr(phba);
13296         lpfc_sli4_queue_destroy(phba);
13297
13298         /* Save device state to PCI config space */
13299         pci_save_state(pdev);
13300         pci_set_power_state(pdev, PCI_D3hot);
13301
13302         return 0;
13303 }
13304
13305 /**
13306  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
13307  * @pdev: pointer to PCI device
13308  *
13309  * This routine is called from the kernel's PCI subsystem to support system
13310  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
13311  * this method, it restores the device's PCI config space state and fully
13312  * reinitializes the device and brings it online. Note that as the driver
13313  * implements the minimum PM requirements to a power-aware driver's PM for
13314  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
13315  * to the suspend() method call will be treated as SUSPEND and the driver
13316  * will fully reinitialize its device during resume() method call, the device
13317  * will be set to PCI_D0 directly in PCI config space before restoring the
13318  * state.
13319  *
13320  * Return code
13321  *      0 - driver suspended the device
13322  *      Error otherwise
13323  **/
13324 static int
13325 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
13326 {
13327         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13328         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13329         uint32_t intr_mode;
13330         int error;
13331
13332         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13333                         "0292 PCI device Power Management resume.\n");
13334
13335         /* Restore device state from PCI config space */
13336         pci_set_power_state(pdev, PCI_D0);
13337         pci_restore_state(pdev);
13338
13339         /*
13340          * As the new kernel behavior of pci_restore_state() API call clears
13341          * device saved_state flag, need to save the restored state again.
13342          */
13343         pci_save_state(pdev);
13344
13345         if (pdev->is_busmaster)
13346                 pci_set_master(pdev);
13347
13348          /* Startup the kernel thread for this host adapter. */
13349         phba->worker_thread = kthread_run(lpfc_do_work, phba,
13350                                         "lpfc_worker_%d", phba->brd_no);
13351         if (IS_ERR(phba->worker_thread)) {
13352                 error = PTR_ERR(phba->worker_thread);
13353                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13354                                 "0293 PM resume failed to start worker "
13355                                 "thread: error=x%x.\n", error);
13356                 return error;
13357         }
13358
13359         /* Configure and enable interrupt */
13360         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13361         if (intr_mode == LPFC_INTR_ERROR) {
13362                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13363                                 "0294 PM resume Failed to enable interrupt\n");
13364                 return -EIO;
13365         } else
13366                 phba->intr_mode = intr_mode;
13367
13368         /* Restart HBA and bring it online */
13369         lpfc_sli_brdrestart(phba);
13370         lpfc_online(phba);
13371
13372         /* Log the current active interrupt mode */
13373         lpfc_log_intr_mode(phba, phba->intr_mode);
13374
13375         return 0;
13376 }
13377
13378 /**
13379  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
13380  * @phba: pointer to lpfc hba data structure.
13381  *
13382  * This routine is called to prepare the SLI4 device for PCI slot recover. It
13383  * aborts all the outstanding SCSI I/Os to the pci device.
13384  **/
13385 static void
13386 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
13387 {
13388         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13389                         "2828 PCI channel I/O abort preparing for recovery\n");
13390         /*
13391          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
13392          * and let the SCSI mid-layer to retry them to recover.
13393          */
13394         lpfc_sli_abort_fcp_rings(phba);
13395 }
13396
13397 /**
13398  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
13399  * @phba: pointer to lpfc hba data structure.
13400  *
13401  * This routine is called to prepare the SLI4 device for PCI slot reset. It
13402  * disables the device interrupt and pci device, and aborts the internal FCP
13403  * pending I/Os.
13404  **/
13405 static void
13406 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
13407 {
13408         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13409                         "2826 PCI channel disable preparing for reset\n");
13410
13411         /* Block any management I/Os to the device */
13412         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
13413
13414         /* Block all SCSI devices' I/Os on the host */
13415         lpfc_scsi_dev_block(phba);
13416
13417         /* Flush all driver's outstanding I/Os as we are to reset */
13418         lpfc_sli_flush_io_rings(phba);
13419
13420         /* stop all timers */
13421         lpfc_stop_hba_timers(phba);
13422
13423         /* Disable interrupt and pci device */
13424         lpfc_sli4_disable_intr(phba);
13425         lpfc_sli4_queue_destroy(phba);
13426         pci_disable_device(phba->pcidev);
13427 }
13428
13429 /**
13430  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
13431  * @phba: pointer to lpfc hba data structure.
13432  *
13433  * This routine is called to prepare the SLI4 device for PCI slot permanently
13434  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
13435  * pending I/Os.
13436  **/
13437 static void
13438 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
13439 {
13440         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13441                         "2827 PCI channel permanent disable for failure\n");
13442
13443         /* Block all SCSI devices' I/Os on the host */
13444         lpfc_scsi_dev_block(phba);
13445
13446         /* stop all timers */
13447         lpfc_stop_hba_timers(phba);
13448
13449         /* Clean up all driver's outstanding I/Os */
13450         lpfc_sli_flush_io_rings(phba);
13451 }
13452
13453 /**
13454  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
13455  * @pdev: pointer to PCI device.
13456  * @state: the current PCI connection state.
13457  *
13458  * This routine is called from the PCI subsystem for error handling to device
13459  * with SLI-4 interface spec. This function is called by the PCI subsystem
13460  * after a PCI bus error affecting this device has been detected. When this
13461  * function is invoked, it will need to stop all the I/Os and interrupt(s)
13462  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
13463  * for the PCI subsystem to perform proper recovery as desired.
13464  *
13465  * Return codes
13466  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13467  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13468  **/
13469 static pci_ers_result_t
13470 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
13471 {
13472         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13473         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13474
13475         switch (state) {
13476         case pci_channel_io_normal:
13477                 /* Non-fatal error, prepare for recovery */
13478                 lpfc_sli4_prep_dev_for_recover(phba);
13479                 return PCI_ERS_RESULT_CAN_RECOVER;
13480         case pci_channel_io_frozen:
13481                 /* Fatal error, prepare for slot reset */
13482                 lpfc_sli4_prep_dev_for_reset(phba);
13483                 return PCI_ERS_RESULT_NEED_RESET;
13484         case pci_channel_io_perm_failure:
13485                 /* Permanent failure, prepare for device down */
13486                 lpfc_sli4_prep_dev_for_perm_failure(phba);
13487                 return PCI_ERS_RESULT_DISCONNECT;
13488         default:
13489                 /* Unknown state, prepare and request slot reset */
13490                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13491                                 "2825 Unknown PCI error state: x%x\n", state);
13492                 lpfc_sli4_prep_dev_for_reset(phba);
13493                 return PCI_ERS_RESULT_NEED_RESET;
13494         }
13495 }
13496
13497 /**
13498  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
13499  * @pdev: pointer to PCI device.
13500  *
13501  * This routine is called from the PCI subsystem for error handling to device
13502  * with SLI-4 interface spec. It is called after PCI bus has been reset to
13503  * restart the PCI card from scratch, as if from a cold-boot. During the
13504  * PCI subsystem error recovery, after the driver returns
13505  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
13506  * recovery and then call this routine before calling the .resume method to
13507  * recover the device. This function will initialize the HBA device, enable
13508  * the interrupt, but it will just put the HBA to offline state without
13509  * passing any I/O traffic.
13510  *
13511  * Return codes
13512  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13513  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13514  */
13515 static pci_ers_result_t
13516 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
13517 {
13518         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13519         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13520         struct lpfc_sli *psli = &phba->sli;
13521         uint32_t intr_mode;
13522
13523         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
13524         if (pci_enable_device_mem(pdev)) {
13525                 printk(KERN_ERR "lpfc: Cannot re-enable "
13526                         "PCI device after reset.\n");
13527                 return PCI_ERS_RESULT_DISCONNECT;
13528         }
13529
13530         pci_restore_state(pdev);
13531
13532         /*
13533          * As the new kernel behavior of pci_restore_state() API call clears
13534          * device saved_state flag, need to save the restored state again.
13535          */
13536         pci_save_state(pdev);
13537
13538         if (pdev->is_busmaster)
13539                 pci_set_master(pdev);
13540
13541         spin_lock_irq(&phba->hbalock);
13542         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
13543         spin_unlock_irq(&phba->hbalock);
13544
13545         /* Configure and enable interrupt */
13546         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
13547         if (intr_mode == LPFC_INTR_ERROR) {
13548                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13549                                 "2824 Cannot re-enable interrupt after "
13550                                 "slot reset.\n");
13551                 return PCI_ERS_RESULT_DISCONNECT;
13552         } else
13553                 phba->intr_mode = intr_mode;
13554
13555         /* Log the current active interrupt mode */
13556         lpfc_log_intr_mode(phba, phba->intr_mode);
13557
13558         return PCI_ERS_RESULT_RECOVERED;
13559 }
13560
13561 /**
13562  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
13563  * @pdev: pointer to PCI device
13564  *
13565  * This routine is called from the PCI subsystem for error handling to device
13566  * with SLI-4 interface spec. It is called when kernel error recovery tells
13567  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
13568  * error recovery. After this call, traffic can start to flow from this device
13569  * again.
13570  **/
13571 static void
13572 lpfc_io_resume_s4(struct pci_dev *pdev)
13573 {
13574         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13575         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13576
13577         /*
13578          * In case of slot reset, as function reset is performed through
13579          * mailbox command which needs DMA to be enabled, this operation
13580          * has to be moved to the io resume phase. Taking device offline
13581          * will perform the necessary cleanup.
13582          */
13583         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
13584                 /* Perform device reset */
13585                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
13586                 lpfc_offline(phba);
13587                 lpfc_sli_brdrestart(phba);
13588                 /* Bring the device back online */
13589                 lpfc_online(phba);
13590         }
13591 }
13592
13593 /**
13594  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
13595  * @pdev: pointer to PCI device
13596  * @pid: pointer to PCI device identifier
13597  *
13598  * This routine is to be registered to the kernel's PCI subsystem. When an
13599  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
13600  * at PCI device-specific information of the device and driver to see if the
13601  * driver state that it can support this kind of device. If the match is
13602  * successful, the driver core invokes this routine. This routine dispatches
13603  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
13604  * do all the initialization that it needs to do to handle the HBA device
13605  * properly.
13606  *
13607  * Return code
13608  *      0 - driver can claim the device
13609  *      negative value - driver can not claim the device
13610  **/
13611 static int
13612 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
13613 {
13614         int rc;
13615         struct lpfc_sli_intf intf;
13616
13617         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
13618                 return -ENODEV;
13619
13620         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
13621             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
13622                 rc = lpfc_pci_probe_one_s4(pdev, pid);
13623         else
13624                 rc = lpfc_pci_probe_one_s3(pdev, pid);
13625
13626         return rc;
13627 }
13628
13629 /**
13630  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
13631  * @pdev: pointer to PCI device
13632  *
13633  * This routine is to be registered to the kernel's PCI subsystem. When an
13634  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
13635  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
13636  * remove routine, which will perform all the necessary cleanup for the
13637  * device to be removed from the PCI subsystem properly.
13638  **/
13639 static void
13640 lpfc_pci_remove_one(struct pci_dev *pdev)
13641 {
13642         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13643         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13644
13645         switch (phba->pci_dev_grp) {
13646         case LPFC_PCI_DEV_LP:
13647                 lpfc_pci_remove_one_s3(pdev);
13648                 break;
13649         case LPFC_PCI_DEV_OC:
13650                 lpfc_pci_remove_one_s4(pdev);
13651                 break;
13652         default:
13653                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13654                                 "1424 Invalid PCI device group: 0x%x\n",
13655                                 phba->pci_dev_grp);
13656                 break;
13657         }
13658         return;
13659 }
13660
13661 /**
13662  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
13663  * @pdev: pointer to PCI device
13664  * @msg: power management message
13665  *
13666  * This routine is to be registered to the kernel's PCI subsystem to support
13667  * system Power Management (PM). When PM invokes this method, it dispatches
13668  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
13669  * suspend the device.
13670  *
13671  * Return code
13672  *      0 - driver suspended the device
13673  *      Error otherwise
13674  **/
13675 static int
13676 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
13677 {
13678         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13679         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13680         int rc = -ENODEV;
13681
13682         switch (phba->pci_dev_grp) {
13683         case LPFC_PCI_DEV_LP:
13684                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
13685                 break;
13686         case LPFC_PCI_DEV_OC:
13687                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
13688                 break;
13689         default:
13690                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13691                                 "1425 Invalid PCI device group: 0x%x\n",
13692                                 phba->pci_dev_grp);
13693                 break;
13694         }
13695         return rc;
13696 }
13697
13698 /**
13699  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
13700  * @pdev: pointer to PCI device
13701  *
13702  * This routine is to be registered to the kernel's PCI subsystem to support
13703  * system Power Management (PM). When PM invokes this method, it dispatches
13704  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
13705  * resume the device.
13706  *
13707  * Return code
13708  *      0 - driver suspended the device
13709  *      Error otherwise
13710  **/
13711 static int
13712 lpfc_pci_resume_one(struct pci_dev *pdev)
13713 {
13714         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13715         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13716         int rc = -ENODEV;
13717
13718         switch (phba->pci_dev_grp) {
13719         case LPFC_PCI_DEV_LP:
13720                 rc = lpfc_pci_resume_one_s3(pdev);
13721                 break;
13722         case LPFC_PCI_DEV_OC:
13723                 rc = lpfc_pci_resume_one_s4(pdev);
13724                 break;
13725         default:
13726                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13727                                 "1426 Invalid PCI device group: 0x%x\n",
13728                                 phba->pci_dev_grp);
13729                 break;
13730         }
13731         return rc;
13732 }
13733
13734 /**
13735  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
13736  * @pdev: pointer to PCI device.
13737  * @state: the current PCI connection state.
13738  *
13739  * This routine is registered to the PCI subsystem for error handling. This
13740  * function is called by the PCI subsystem after a PCI bus error affecting
13741  * this device has been detected. When this routine is invoked, it dispatches
13742  * the action to the proper SLI-3 or SLI-4 device error detected handling
13743  * routine, which will perform the proper error detected operation.
13744  *
13745  * Return codes
13746  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
13747  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13748  **/
13749 static pci_ers_result_t
13750 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
13751 {
13752         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13753         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13754         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13755
13756         switch (phba->pci_dev_grp) {
13757         case LPFC_PCI_DEV_LP:
13758                 rc = lpfc_io_error_detected_s3(pdev, state);
13759                 break;
13760         case LPFC_PCI_DEV_OC:
13761                 rc = lpfc_io_error_detected_s4(pdev, state);
13762                 break;
13763         default:
13764                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13765                                 "1427 Invalid PCI device group: 0x%x\n",
13766                                 phba->pci_dev_grp);
13767                 break;
13768         }
13769         return rc;
13770 }
13771
13772 /**
13773  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
13774  * @pdev: pointer to PCI device.
13775  *
13776  * This routine is registered to the PCI subsystem for error handling. This
13777  * function is called after PCI bus has been reset to restart the PCI card
13778  * from scratch, as if from a cold-boot. When this routine is invoked, it
13779  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
13780  * routine, which will perform the proper device reset.
13781  *
13782  * Return codes
13783  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
13784  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
13785  **/
13786 static pci_ers_result_t
13787 lpfc_io_slot_reset(struct pci_dev *pdev)
13788 {
13789         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13790         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13791         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
13792
13793         switch (phba->pci_dev_grp) {
13794         case LPFC_PCI_DEV_LP:
13795                 rc = lpfc_io_slot_reset_s3(pdev);
13796                 break;
13797         case LPFC_PCI_DEV_OC:
13798                 rc = lpfc_io_slot_reset_s4(pdev);
13799                 break;
13800         default:
13801                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13802                                 "1428 Invalid PCI device group: 0x%x\n",
13803                                 phba->pci_dev_grp);
13804                 break;
13805         }
13806         return rc;
13807 }
13808
13809 /**
13810  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
13811  * @pdev: pointer to PCI device
13812  *
13813  * This routine is registered to the PCI subsystem for error handling. It
13814  * is called when kernel error recovery tells the lpfc driver that it is
13815  * OK to resume normal PCI operation after PCI bus error recovery. When
13816  * this routine is invoked, it dispatches the action to the proper SLI-3
13817  * or SLI-4 device io_resume routine, which will resume the device operation.
13818  **/
13819 static void
13820 lpfc_io_resume(struct pci_dev *pdev)
13821 {
13822         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13823         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13824
13825         switch (phba->pci_dev_grp) {
13826         case LPFC_PCI_DEV_LP:
13827                 lpfc_io_resume_s3(pdev);
13828                 break;
13829         case LPFC_PCI_DEV_OC:
13830                 lpfc_io_resume_s4(pdev);
13831                 break;
13832         default:
13833                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13834                                 "1429 Invalid PCI device group: 0x%x\n",
13835                                 phba->pci_dev_grp);
13836                 break;
13837         }
13838         return;
13839 }
13840
13841 /**
13842  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
13843  * @phba: pointer to lpfc hba data structure.
13844  *
13845  * This routine checks to see if OAS is supported for this adapter. If
13846  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
13847  * the enable oas flag is cleared and the pool created for OAS device data
13848  * is destroyed.
13849  *
13850  **/
13851 static void
13852 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
13853 {
13854
13855         if (!phba->cfg_EnableXLane)
13856                 return;
13857
13858         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
13859                 phba->cfg_fof = 1;
13860         } else {
13861                 phba->cfg_fof = 0;
13862                 mempool_destroy(phba->device_data_mem_pool);
13863                 phba->device_data_mem_pool = NULL;
13864         }
13865
13866         return;
13867 }
13868
13869 /**
13870  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
13871  * @phba: pointer to lpfc hba data structure.
13872  *
13873  * This routine checks to see if RAS is supported by the adapter. Check the
13874  * function through which RAS support enablement is to be done.
13875  **/
13876 void
13877 lpfc_sli4_ras_init(struct lpfc_hba *phba)
13878 {
13879         switch (phba->pcidev->device) {
13880         case PCI_DEVICE_ID_LANCER_G6_FC:
13881         case PCI_DEVICE_ID_LANCER_G7_FC:
13882                 phba->ras_fwlog.ras_hwsupport = true;
13883                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
13884                     phba->cfg_ras_fwlog_buffsize)
13885                         phba->ras_fwlog.ras_enabled = true;
13886                 else
13887                         phba->ras_fwlog.ras_enabled = false;
13888                 break;
13889         default:
13890                 phba->ras_fwlog.ras_hwsupport = false;
13891         }
13892 }
13893
13894
13895 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
13896
13897 static const struct pci_error_handlers lpfc_err_handler = {
13898         .error_detected = lpfc_io_error_detected,
13899         .slot_reset = lpfc_io_slot_reset,
13900         .resume = lpfc_io_resume,
13901 };
13902
13903 static struct pci_driver lpfc_driver = {
13904         .name           = LPFC_DRIVER_NAME,
13905         .id_table       = lpfc_id_table,
13906         .probe          = lpfc_pci_probe_one,
13907         .remove         = lpfc_pci_remove_one,
13908         .shutdown       = lpfc_pci_remove_one,
13909         .suspend        = lpfc_pci_suspend_one,
13910         .resume         = lpfc_pci_resume_one,
13911         .err_handler    = &lpfc_err_handler,
13912 };
13913
13914 static const struct file_operations lpfc_mgmt_fop = {
13915         .owner = THIS_MODULE,
13916 };
13917
13918 static struct miscdevice lpfc_mgmt_dev = {
13919         .minor = MISC_DYNAMIC_MINOR,
13920         .name = "lpfcmgmt",
13921         .fops = &lpfc_mgmt_fop,
13922 };
13923
13924 /**
13925  * lpfc_init - lpfc module initialization routine
13926  *
13927  * This routine is to be invoked when the lpfc module is loaded into the
13928  * kernel. The special kernel macro module_init() is used to indicate the
13929  * role of this routine to the kernel as lpfc module entry point.
13930  *
13931  * Return codes
13932  *   0 - successful
13933  *   -ENOMEM - FC attach transport failed
13934  *   all others - failed
13935  */
13936 static int __init
13937 lpfc_init(void)
13938 {
13939         int error = 0;
13940
13941         printk(LPFC_MODULE_DESC "\n");
13942         printk(LPFC_COPYRIGHT "\n");
13943
13944         error = misc_register(&lpfc_mgmt_dev);
13945         if (error)
13946                 printk(KERN_ERR "Could not register lpfcmgmt device, "
13947                         "misc_register returned with status %d", error);
13948
13949         lpfc_transport_functions.vport_create = lpfc_vport_create;
13950         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
13951         lpfc_transport_template =
13952                                 fc_attach_transport(&lpfc_transport_functions);
13953         if (lpfc_transport_template == NULL)
13954                 return -ENOMEM;
13955         lpfc_vport_transport_template =
13956                 fc_attach_transport(&lpfc_vport_transport_functions);
13957         if (lpfc_vport_transport_template == NULL) {
13958                 fc_release_transport(lpfc_transport_template);
13959                 return -ENOMEM;
13960         }
13961         lpfc_nvme_cmd_template();
13962         lpfc_nvmet_cmd_template();
13963
13964         /* Initialize in case vector mapping is needed */
13965         lpfc_present_cpu = num_present_cpus();
13966
13967         error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
13968                                         "lpfc/sli4:online",
13969                                         lpfc_cpu_online, lpfc_cpu_offline);
13970         if (error < 0)
13971                 goto cpuhp_failure;
13972         lpfc_cpuhp_state = error;
13973
13974         error = pci_register_driver(&lpfc_driver);
13975         if (error)
13976                 goto unwind;
13977
13978         return error;
13979
13980 unwind:
13981         cpuhp_remove_multi_state(lpfc_cpuhp_state);
13982 cpuhp_failure:
13983         fc_release_transport(lpfc_transport_template);
13984         fc_release_transport(lpfc_vport_transport_template);
13985
13986         return error;
13987 }
13988
13989 /**
13990  * lpfc_exit - lpfc module removal routine
13991  *
13992  * This routine is invoked when the lpfc module is removed from the kernel.
13993  * The special kernel macro module_exit() is used to indicate the role of
13994  * this routine to the kernel as lpfc module exit point.
13995  */
13996 static void __exit
13997 lpfc_exit(void)
13998 {
13999         misc_deregister(&lpfc_mgmt_dev);
14000         pci_unregister_driver(&lpfc_driver);
14001         cpuhp_remove_multi_state(lpfc_cpuhp_state);
14002         fc_release_transport(lpfc_transport_template);
14003         fc_release_transport(lpfc_vport_transport_template);
14004         idr_destroy(&lpfc_hba_index);
14005 }
14006
14007 module_init(lpfc_init);
14008 module_exit(lpfc_exit);
14009 MODULE_LICENSE("GPL");
14010 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
14011 MODULE_AUTHOR("Broadcom");
14012 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);