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
  43 #include <scsi/scsi.h>
  44 #include <scsi/scsi_device.h>
  45 #include <scsi/scsi_host.h>
  46 #include <scsi/scsi_transport_fc.h>
  47 #include <scsi/scsi_tcq.h>
  48 #include <scsi/fc/fc_fs.h>
  49
  50 #include <linux/nvme-fc-driver.h>
  51
  52 #include "lpfc_hw4.h"
  53 #include "lpfc_hw.h"
  54 #include "lpfc_sli.h"
  55 #include "lpfc_sli4.h"
  56 #include "lpfc_nl.h"
  57 #include "lpfc_disc.h"
  58 #include "lpfc.h"
  59 #include "lpfc_scsi.h"
  60 #include "lpfc_nvme.h"
  61 #include "lpfc_nvmet.h"
  62 #include "lpfc_logmsg.h"
  63 #include "lpfc_crtn.h"
  64 #include "lpfc_vport.h"
  65 #include "lpfc_version.h"
  66 #include "lpfc_ids.h"
  67
  68 char *_dump_buf_data;
  69 unsigned long _dump_buf_data_order;
  70 char *_dump_buf_dif;
  71 unsigned long _dump_buf_dif_order;
  72 spinlock_t _dump_buf_lock;
  73
  74 /* Used when mapping IRQ vectors in a driver centric manner */
  75 uint32_t lpfc_present_cpu;
  76
  77 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  78 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  79 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  80 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  81 static int lpfc_setup_endian_order(struct lpfc_hba *);
  82 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  83 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  84 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  85 static void lpfc_init_sgl_list(struct lpfc_hba *);
  86 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  87 static void lpfc_free_active_sgl(struct lpfc_hba *);
  88 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  89 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  90 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  91 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  92 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  93 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  94 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  95 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  96 static uint16_t lpfc_find_eq_handle(struct lpfc_hba *, uint16_t);
  97 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  98
  99 static struct scsi_transport_template *lpfc_transport_template = NULL;
 100 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
 101 static DEFINE_IDR(lpfc_hba_index);
 102 #define LPFC_NVMET_BUF_POST 254
 103
 104 /**
 105  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 106  * @phba: pointer to lpfc hba data structure.
 107  *
 108  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 109  * mailbox command. It retrieves the revision information from the HBA and
 110  * collects the Vital Product Data (VPD) about the HBA for preparing the
 111  * configuration of the HBA.
 112  *
 113  * Return codes:
 114  *   0 - success.
 115  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 116  *   Any other value - indicates an error.
 117  **/
 118 int
 119 lpfc_config_port_prep(struct lpfc_hba *phba)
 120 {
 121         lpfc_vpd_t *vp = &phba->vpd;
 122         int i = 0, rc;
 123         LPFC_MBOXQ_t *pmb;
 124         MAILBOX_t *mb;
 125         char *lpfc_vpd_data = NULL;
 126         uint16_t offset = 0;
 127         static char licensed[56] =
 128                     "key unlock for use with gnu public licensed code only\0";
 129         static int init_key = 1;
 130
 131         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 132         if (!pmb) {
 133                 phba->link_state = LPFC_HBA_ERROR;
 134                 return -ENOMEM;
 135         }
 136
 137         mb = &pmb->u.mb;
 138         phba->link_state = LPFC_INIT_MBX_CMDS;
 139
 140         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 141                 if (init_key) {
 142                         uint32_t *ptext = (uint32_t *) licensed;
 143
 144                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 145                                 *ptext = cpu_to_be32(*ptext);
 146                         init_key = 0;
 147                 }
 148
 149                 lpfc_read_nv(phba, pmb);
 150                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 151                         sizeof (mb->un.varRDnvp.rsvd3));
 152                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 153                          sizeof (licensed));
 154
 155                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 156
 157                 if (rc != MBX_SUCCESS) {
 158                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 159                                         "0324 Config Port initialization "
 160                                         "error, mbxCmd x%x READ_NVPARM, "
 161                                         "mbxStatus x%x\n",
 162                                         mb->mbxCommand, mb->mbxStatus);
 163                         mempool_free(pmb, phba->mbox_mem_pool);
 164                         return -ERESTART;
 165                 }
 166                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 167                        sizeof(phba->wwnn));
 168                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 169                        sizeof(phba->wwpn));
 170         }
 171
 172         /*
 173          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 174          * which was already set in lpfc_get_cfgparam()
 175          */
 176         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 177
 178         /* Setup and issue mailbox READ REV command */
 179         lpfc_read_rev(phba, pmb);
 180         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 181         if (rc != MBX_SUCCESS) {
 182                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 183                                 "0439 Adapter failed to init, mbxCmd x%x "
 184                                 "READ_REV, mbxStatus x%x\n",
 185                                 mb->mbxCommand, mb->mbxStatus);
 186                 mempool_free( pmb, phba->mbox_mem_pool);
 187                 return -ERESTART;
 188         }
 189
 190
 191         /*
 192          * The value of rr must be 1 since the driver set the cv field to 1.
 193          * This setting requires the FW to set all revision fields.
 194          */
 195         if (mb->un.varRdRev.rr == 0) {
 196                 vp->rev.rBit = 0;
 197                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 198                                 "0440 Adapter failed to init, READ_REV has "
 199                                 "missing revision information.\n");
 200                 mempool_free(pmb, phba->mbox_mem_pool);
 201                 return -ERESTART;
 202         }
 203
 204         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 205                 mempool_free(pmb, phba->mbox_mem_pool);
 206                 return -EINVAL;
 207         }
 208
 209         /* Save information as VPD data */
 210         vp->rev.rBit = 1;
 211         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 212         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 213         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 214         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 215         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 216         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 217         vp->rev.smRev = mb->un.varRdRev.smRev;
 218         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 219         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 220         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 221         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 222         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 223         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 224         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 225         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 226
 227         /* If the sli feature level is less then 9, we must
 228          * tear down all RPIs and VPIs on link down if NPIV
 229          * is enabled.
 230          */
 231         if (vp->rev.feaLevelHigh < 9)
 232                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 233
 234         if (lpfc_is_LC_HBA(phba->pcidev->device))
 235                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 236                                                 sizeof (phba->RandomData));
 237
 238         /* Get adapter VPD information */
 239         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 240         if (!lpfc_vpd_data)
 241                 goto out_free_mbox;
 242         do {
 243                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 244                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 245
 246                 if (rc != MBX_SUCCESS) {
 247                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 248                                         "0441 VPD not present on adapter, "
 249                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 250                                         mb->mbxCommand, mb->mbxStatus);
 251                         mb->un.varDmp.word_cnt = 0;
 252                 }
 253                 /* dump mem may return a zero when finished or we got a
 254                  * mailbox error, either way we are done.
 255                  */
 256                 if (mb->un.varDmp.word_cnt == 0)
 257                         break;
 258                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 259                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 260                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 261                                       lpfc_vpd_data + offset,
 262                                       mb->un.varDmp.word_cnt);
 263                 offset += mb->un.varDmp.word_cnt;
 264         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 265         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 266
 267         kfree(lpfc_vpd_data);
 268 out_free_mbox:
 269         mempool_free(pmb, phba->mbox_mem_pool);
 270         return 0;
 271 }
 272
 273 /**
 274  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 275  * @phba: pointer to lpfc hba data structure.
 276  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 277  *
 278  * This is the completion handler for driver's configuring asynchronous event
 279  * mailbox command to the device. If the mailbox command returns successfully,
 280  * it will set internal async event support flag to 1; otherwise, it will
 281  * set internal async event support flag to 0.
 282  **/
 283 static void
 284 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 285 {
 286         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 287                 phba->temp_sensor_support = 1;
 288         else
 289                 phba->temp_sensor_support = 0;
 290         mempool_free(pmboxq, phba->mbox_mem_pool);
 291         return;
 292 }
 293
 294 /**
 295  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 296  * @phba: pointer to lpfc hba data structure.
 297  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 298  *
 299  * This is the completion handler for dump mailbox command for getting
 300  * wake up parameters. When this command complete, the response contain
 301  * Option rom version of the HBA. This function translate the version number
 302  * into a human readable string and store it in OptionROMVersion.
 303  **/
 304 static void
 305 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 306 {
 307         struct prog_id *prg;
 308         uint32_t prog_id_word;
 309         char dist = ' ';
 310         /* character array used for decoding dist type. */
 311         char dist_char[] = "nabx";
 312
 313         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 314                 mempool_free(pmboxq, phba->mbox_mem_pool);
 315                 return;
 316         }
 317
 318         prg = (struct prog_id *) &prog_id_word;
 319
 320         /* word 7 contain option rom version */
 321         prog_id_word = pmboxq->u.mb.un.varWords[7];
 322
 323         /* Decode the Option rom version word to a readable string */
 324         if (prg->dist < 4)
 325                 dist = dist_char[prg->dist];
 326
 327         if ((prg->dist == 3) && (prg->num == 0))
 328                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 329                         prg->ver, prg->rev, prg->lev);
 330         else
 331                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 332                         prg->ver, prg->rev, prg->lev,
 333                         dist, prg->num);
 334         mempool_free(pmboxq, phba->mbox_mem_pool);
 335         return;
 336 }
 337
 338 /**
 339  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 340  *      cfg_soft_wwnn, cfg_soft_wwpn
 341  * @vport: pointer to lpfc vport data structure.
 342  *
 343  *
 344  * Return codes
 345  *   None.
 346  **/
 347 void
 348 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 349 {
 350         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 351         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 352
 353         /* If the soft name exists then update it using the service params */
 354         if (vport->phba->cfg_soft_wwnn)
 355                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 356                            vport->fc_sparam.nodeName.u.wwn);
 357         if (vport->phba->cfg_soft_wwpn)
 358                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 359                            vport->fc_sparam.portName.u.wwn);
 360
 361         /*
 362          * If the name is empty or there exists a soft name
 363          * then copy the service params name, otherwise use the fc name
 364          */
 365         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 366                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 367                         sizeof(struct lpfc_name));
 368         else
 369                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 370                         sizeof(struct lpfc_name));
 371
 372         /*
 373          * If the port name has changed, then set the Param changes flag
 374          * to unreg the login
 375          */
 376         if (vport->fc_portname.u.wwn[0] != 0 &&
 377                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 378                         sizeof(struct lpfc_name)))
 379                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 380
 381         if (vport->fc_portname.u.wwn[0] == 0 ||
 382             vport->phba->cfg_soft_wwpn ||
 383             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 384             vport->vport_flag & FAWWPN_SET) {
 385                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 386                         sizeof(struct lpfc_name));
 387                 vport->vport_flag &= ~FAWWPN_SET;
 388                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 389                         vport->vport_flag |= FAWWPN_SET;
 390         }
 391         else
 392                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 393                         sizeof(struct lpfc_name));
 394 }
 395
 396 /**
 397  * lpfc_config_port_post - Perform lpfc initialization after config port
 398  * @phba: pointer to lpfc hba data structure.
 399  *
 400  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 401  * command call. It performs all internal resource and state setups on the
 402  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 403  * ELS ring timers, etc.
 404  *
 405  * Return codes
 406  *   0 - success.
 407  *   Any other value - error.
 408  **/
 409 int
 410 lpfc_config_port_post(struct lpfc_hba *phba)
 411 {
 412         struct lpfc_vport *vport = phba->pport;
 413         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 414         LPFC_MBOXQ_t *pmb;
 415         MAILBOX_t *mb;
 416         struct lpfc_dmabuf *mp;
 417         struct lpfc_sli *psli = &phba->sli;
 418         uint32_t status, timeout;
 419         int i, j;
 420         int rc;
 421
 422         spin_lock_irq(&phba->hbalock);
 423         /*
 424          * If the Config port completed correctly the HBA is not
 425          * over heated any more.
 426          */
 427         if (phba->over_temp_state == HBA_OVER_TEMP)
 428                 phba->over_temp_state = HBA_NORMAL_TEMP;
 429         spin_unlock_irq(&phba->hbalock);
 430
 431         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 432         if (!pmb) {
 433                 phba->link_state = LPFC_HBA_ERROR;
 434                 return -ENOMEM;
 435         }
 436         mb = &pmb->u.mb;
 437
 438         /* Get login parameters for NID.  */
 439         rc = lpfc_read_sparam(phba, pmb, 0);
 440         if (rc) {
 441                 mempool_free(pmb, phba->mbox_mem_pool);
 442                 return -ENOMEM;
 443         }
 444
 445         pmb->vport = vport;
 446         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 447                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 448                                 "0448 Adapter failed init, mbxCmd x%x "
 449                                 "READ_SPARM mbxStatus x%x\n",
 450                                 mb->mbxCommand, mb->mbxStatus);
 451                 phba->link_state = LPFC_HBA_ERROR;
 452                 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 453                 mempool_free(pmb, phba->mbox_mem_pool);
 454                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 455                 kfree(mp);
 456                 return -EIO;
 457         }
 458
 459         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 460
 461         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 462         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 463         kfree(mp);
 464         pmb->ctx_buf = NULL;
 465         lpfc_update_vport_wwn(vport);
 466
 467         /* Update the fc_host data structures with new wwn. */
 468         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 469         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 470         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 471
 472         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 473         /* This should be consolidated into parse_vpd ? - mr */
 474         if (phba->SerialNumber[0] == 0) {
 475                 uint8_t *outptr;
 476
 477                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 478                 for (i = 0; i < 12; i++) {
 479                         status = *outptr++;
 480                         j = ((status & 0xf0) >> 4);
 481                         if (j <= 9)
 482                                 phba->SerialNumber[i] =
 483                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 484                         else
 485                                 phba->SerialNumber[i] =
 486                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 487                         i++;
 488                         j = (status & 0xf);
 489                         if (j <= 9)
 490                                 phba->SerialNumber[i] =
 491                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 492                         else
 493                                 phba->SerialNumber[i] =
 494                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 495                 }
 496         }
 497
 498         lpfc_read_config(phba, pmb);
 499         pmb->vport = vport;
 500         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 501                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 502                                 "0453 Adapter failed to init, mbxCmd x%x "
 503                                 "READ_CONFIG, mbxStatus x%x\n",
 504                                 mb->mbxCommand, mb->mbxStatus);
 505                 phba->link_state = LPFC_HBA_ERROR;
 506                 mempool_free( pmb, phba->mbox_mem_pool);
 507                 return -EIO;
 508         }
 509
 510         /* Check if the port is disabled */
 511         lpfc_sli_read_link_ste(phba);
 512
 513         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 514         i = (mb->un.varRdConfig.max_xri + 1);
 515         if (phba->cfg_hba_queue_depth > i) {
 516                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 517                                 "3359 HBA queue depth changed from %d to %d\n",
 518                                 phba->cfg_hba_queue_depth, i);
 519                 phba->cfg_hba_queue_depth = i;
 520         }
 521
 522         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 523         i = (mb->un.varRdConfig.max_xri >> 3);
 524         if (phba->pport->cfg_lun_queue_depth > i) {
 525                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 526                                 "3360 LUN queue depth changed from %d to %d\n",
 527                                 phba->pport->cfg_lun_queue_depth, i);
 528                 phba->pport->cfg_lun_queue_depth = i;
 529         }
 530
 531         phba->lmt = mb->un.varRdConfig.lmt;
 532
 533         /* Get the default values for Model Name and Description */
 534         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 535
 536         phba->link_state = LPFC_LINK_DOWN;
 537
 538         /* Only process IOCBs on ELS ring till hba_state is READY */
 539         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 540                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 541         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 542                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 543
 544         /* Post receive buffers for desired rings */
 545         if (phba->sli_rev != 3)
 546                 lpfc_post_rcv_buf(phba);
 547
 548         /*
 549          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 550          */
 551         if (phba->intr_type == MSIX) {
 552                 rc = lpfc_config_msi(phba, pmb);
 553                 if (rc) {
 554                         mempool_free(pmb, phba->mbox_mem_pool);
 555                         return -EIO;
 556                 }
 557                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 558                 if (rc != MBX_SUCCESS) {
 559                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 560                                         "0352 Config MSI mailbox command "
 561                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 562                                         pmb->u.mb.mbxCommand,
 563                                         pmb->u.mb.mbxStatus);
 564                         mempool_free(pmb, phba->mbox_mem_pool);
 565                         return -EIO;
 566                 }
 567         }
 568
 569         spin_lock_irq(&phba->hbalock);
 570         /* Initialize ERATT handling flag */
 571         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 572
 573         /* Enable appropriate host interrupts */
 574         if (lpfc_readl(phba->HCregaddr, &status)) {
 575                 spin_unlock_irq(&phba->hbalock);
 576                 return -EIO;
 577         }
 578         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 579         if (psli->num_rings > 0)
 580                 status |= HC_R0INT_ENA;
 581         if (psli->num_rings > 1)
 582                 status |= HC_R1INT_ENA;
 583         if (psli->num_rings > 2)
 584                 status |= HC_R2INT_ENA;
 585         if (psli->num_rings > 3)
 586                 status |= HC_R3INT_ENA;
 587
 588         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 589             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 590                 status &= ~(HC_R0INT_ENA);
 591
 592         writel(status, phba->HCregaddr);
 593         readl(phba->HCregaddr); /* flush */
 594         spin_unlock_irq(&phba->hbalock);
 595
 596         /* Set up ring-0 (ELS) timer */
 597         timeout = phba->fc_ratov * 2;
 598         mod_timer(&vport->els_tmofunc,
 599                   jiffies + msecs_to_jiffies(1000 * timeout));
 600         /* Set up heart beat (HB) timer */
 601         mod_timer(&phba->hb_tmofunc,
 602                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 603         phba->hb_outstanding = 0;
 604         phba->last_completion_time = jiffies;
 605         /* Set up error attention (ERATT) polling timer */
 606         mod_timer(&phba->eratt_poll,
 607                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 608
 609         if (phba->hba_flag & LINK_DISABLED) {
 610                 lpfc_printf_log(phba,
 611                         KERN_ERR, LOG_INIT,
 612                         "2598 Adapter Link is disabled.\n");
 613                 lpfc_down_link(phba, pmb);
 614                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 615                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 616                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 617                         lpfc_printf_log(phba,
 618                         KERN_ERR, LOG_INIT,
 619                         "2599 Adapter failed to issue DOWN_LINK"
 620                         " mbox command rc 0x%x\n", rc);
 621
 622                         mempool_free(pmb, phba->mbox_mem_pool);
 623                         return -EIO;
 624                 }
 625         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 626                 mempool_free(pmb, phba->mbox_mem_pool);
 627                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 628                 if (rc)
 629                         return rc;
 630         }
 631         /* MBOX buffer will be freed in mbox compl */
 632         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 633         if (!pmb) {
 634                 phba->link_state = LPFC_HBA_ERROR;
 635                 return -ENOMEM;
 636         }
 637
 638         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 639         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 640         pmb->vport = phba->pport;
 641         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 642
 643         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 644                 lpfc_printf_log(phba,
 645                                 KERN_ERR,
 646                                 LOG_INIT,
 647                                 "0456 Adapter failed to issue "
 648                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 649                                 rc);
 650                 mempool_free(pmb, phba->mbox_mem_pool);
 651         }
 652
 653         /* Get Option rom version */
 654         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 655         if (!pmb) {
 656                 phba->link_state = LPFC_HBA_ERROR;
 657                 return -ENOMEM;
 658         }
 659
 660         lpfc_dump_wakeup_param(phba, pmb);
 661         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 662         pmb->vport = phba->pport;
 663         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 664
 665         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 666                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 667                                 "to get Option ROM version status x%x\n", rc);
 668                 mempool_free(pmb, phba->mbox_mem_pool);
 669         }
 670
 671         return 0;
 672 }
 673
 674 /**
 675  * lpfc_hba_init_link - Initialize the FC link
 676  * @phba: pointer to lpfc hba data structure.
 677  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 678  *
 679  * This routine will issue the INIT_LINK mailbox command call.
 680  * It is available to other drivers through the lpfc_hba data
 681  * structure for use as a delayed link up mechanism with the
 682  * module parameter lpfc_suppress_link_up.
 683  *
 684  * Return code
 685  *              0 - success
 686  *              Any other value - error
 687  **/
 688 static int
 689 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 690 {
 691         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 692 }
 693
 694 /**
 695  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 696  * @phba: pointer to lpfc hba data structure.
 697  * @fc_topology: desired fc topology.
 698  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 699  *
 700  * This routine will issue the INIT_LINK mailbox command call.
 701  * It is available to other drivers through the lpfc_hba data
 702  * structure for use as a delayed link up mechanism with the
 703  * module parameter lpfc_suppress_link_up.
 704  *
 705  * Return code
 706  *              0 - success
 707  *              Any other value - error
 708  **/
 709 int
 710 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 711                                uint32_t flag)
 712 {
 713         struct lpfc_vport *vport = phba->pport;
 714         LPFC_MBOXQ_t *pmb;
 715         MAILBOX_t *mb;
 716         int rc;
 717
 718         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 719         if (!pmb) {
 720                 phba->link_state = LPFC_HBA_ERROR;
 721                 return -ENOMEM;
 722         }
 723         mb = &pmb->u.mb;
 724         pmb->vport = vport;
 725
 726         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 728              !(phba->lmt & LMT_1Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 730              !(phba->lmt & LMT_2Gb)) ||
 731             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 732              !(phba->lmt & LMT_4Gb)) ||
 733             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 734              !(phba->lmt & LMT_8Gb)) ||
 735             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 736              !(phba->lmt & LMT_10Gb)) ||
 737             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 738              !(phba->lmt & LMT_16Gb)) ||
 739             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 740              !(phba->lmt & LMT_32Gb)) ||
 741             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 742              !(phba->lmt & LMT_64Gb))) {
 743                 /* Reset link speed to auto */
 744                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 745                         "1302 Invalid speed for this board:%d "
 746                         "Reset link speed to auto.\n",
 747                         phba->cfg_link_speed);
 748                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 749         }
 750         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 751         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 752         if (phba->sli_rev < LPFC_SLI_REV4)
 753                 lpfc_set_loopback_flag(phba);
 754         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 755         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 756                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 757                         "0498 Adapter failed to init, mbxCmd x%x "
 758                         "INIT_LINK, mbxStatus x%x\n",
 759                         mb->mbxCommand, mb->mbxStatus);
 760                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 761                         /* Clear all interrupt enable conditions */
 762                         writel(0, phba->HCregaddr);
 763                         readl(phba->HCregaddr); /* flush */
 764                         /* Clear all pending interrupts */
 765                         writel(0xffffffff, phba->HAregaddr);
 766                         readl(phba->HAregaddr); /* flush */
 767                 }
 768                 phba->link_state = LPFC_HBA_ERROR;
 769                 if (rc != MBX_BUSY || flag == MBX_POLL)
 770                         mempool_free(pmb, phba->mbox_mem_pool);
 771                 return -EIO;
 772         }
 773         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 774         if (flag == MBX_POLL)
 775                 mempool_free(pmb, phba->mbox_mem_pool);
 776
 777         return 0;
 778 }
 779
 780 /**
 781  * lpfc_hba_down_link - this routine downs the FC link
 782  * @phba: pointer to lpfc hba data structure.
 783  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 784  *
 785  * This routine will issue the DOWN_LINK mailbox command call.
 786  * It is available to other drivers through the lpfc_hba data
 787  * structure for use to stop the link.
 788  *
 789  * Return code
 790  *              0 - success
 791  *              Any other value - error
 792  **/
 793 static int
 794 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 795 {
 796         LPFC_MBOXQ_t *pmb;
 797         int rc;
 798
 799         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 800         if (!pmb) {
 801                 phba->link_state = LPFC_HBA_ERROR;
 802                 return -ENOMEM;
 803         }
 804
 805         lpfc_printf_log(phba,
 806                 KERN_ERR, LOG_INIT,
 807                 "0491 Adapter Link is disabled.\n");
 808         lpfc_down_link(phba, pmb);
 809         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 810         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 811         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 812                 lpfc_printf_log(phba,
 813                 KERN_ERR, LOG_INIT,
 814                 "2522 Adapter failed to issue DOWN_LINK"
 815                 " mbox command rc 0x%x\n", rc);
 816
 817                 mempool_free(pmb, phba->mbox_mem_pool);
 818                 return -EIO;
 819         }
 820         if (flag == MBX_POLL)
 821                 mempool_free(pmb, phba->mbox_mem_pool);
 822
 823         return 0;
 824 }
 825
 826 /**
 827  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 828  * @phba: pointer to lpfc HBA data structure.
 829  *
 830  * This routine will do LPFC uninitialization before the HBA is reset when
 831  * bringing down the SLI Layer.
 832  *
 833  * Return codes
 834  *   0 - success.
 835  *   Any other value - error.
 836  **/
 837 int
 838 lpfc_hba_down_prep(struct lpfc_hba *phba)
 839 {
 840         struct lpfc_vport **vports;
 841         int i;
 842
 843         if (phba->sli_rev <= LPFC_SLI_REV3) {
 844                 /* Disable interrupts */
 845                 writel(0, phba->HCregaddr);
 846                 readl(phba->HCregaddr); /* flush */
 847         }
 848
 849         if (phba->pport->load_flag & FC_UNLOADING)
 850                 lpfc_cleanup_discovery_resources(phba->pport);
 851         else {
 852                 vports = lpfc_create_vport_work_array(phba);
 853                 if (vports != NULL)
 854                         for (i = 0; i <= phba->max_vports &&
 855                                 vports[i] != NULL; i++)
 856                                 lpfc_cleanup_discovery_resources(vports[i]);
 857                 lpfc_destroy_vport_work_array(phba, vports);
 858         }
 859         return 0;
 860 }
 861
 862 /**
 863  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 864  * rspiocb which got deferred
 865  *
 866  * @phba: pointer to lpfc HBA data structure.
 867  *
 868  * This routine will cleanup completed slow path events after HBA is reset
 869  * when bringing down the SLI Layer.
 870  *
 871  *
 872  * Return codes
 873  *   void.
 874  **/
 875 static void
 876 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 877 {
 878         struct lpfc_iocbq *rspiocbq;
 879         struct hbq_dmabuf *dmabuf;
 880         struct lpfc_cq_event *cq_event;
 881
 882         spin_lock_irq(&phba->hbalock);
 883         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 884         spin_unlock_irq(&phba->hbalock);
 885
 886         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 887                 /* Get the response iocb from the head of work queue */
 888                 spin_lock_irq(&phba->hbalock);
 889                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 890                                  cq_event, struct lpfc_cq_event, list);
 891                 spin_unlock_irq(&phba->hbalock);
 892
 893                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 894                 case CQE_CODE_COMPL_WQE:
 895                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 896                                                  cq_event);
 897                         lpfc_sli_release_iocbq(phba, rspiocbq);
 898                         break;
 899                 case CQE_CODE_RECEIVE:
 900                 case CQE_CODE_RECEIVE_V1:
 901                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 902                                               cq_event);
 903                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 904                 }
 905         }
 906 }
 907
 908 /**
 909  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 910  * @phba: pointer to lpfc HBA data structure.
 911  *
 912  * This routine will cleanup posted ELS buffers after the HBA is reset
 913  * when bringing down the SLI Layer.
 914  *
 915  *
 916  * Return codes
 917  *   void.
 918  **/
 919 static void
 920 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 921 {
 922         struct lpfc_sli *psli = &phba->sli;
 923         struct lpfc_sli_ring *pring;
 924         struct lpfc_dmabuf *mp, *next_mp;
 925         LIST_HEAD(buflist);
 926         int count;
 927
 928         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 929                 lpfc_sli_hbqbuf_free_all(phba);
 930         else {
 931                 /* Cleanup preposted buffers on the ELS ring */
 932                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 933                 spin_lock_irq(&phba->hbalock);
 934                 list_splice_init(&pring->postbufq, &buflist);
 935                 spin_unlock_irq(&phba->hbalock);
 936
 937                 count = 0;
 938                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 939                         list_del(&mp->list);
 940                         count++;
 941                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 942                         kfree(mp);
 943                 }
 944
 945                 spin_lock_irq(&phba->hbalock);
 946                 pring->postbufq_cnt -= count;
 947                 spin_unlock_irq(&phba->hbalock);
 948         }
 949 }
 950
 951 /**
 952  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 953  * @phba: pointer to lpfc HBA data structure.
 954  *
 955  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 956  * down the SLI Layer.
 957  *
 958  * Return codes
 959  *   void
 960  **/
 961 static void
 962 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 963 {
 964         struct lpfc_sli *psli = &phba->sli;
 965         struct lpfc_queue *qp = NULL;
 966         struct lpfc_sli_ring *pring;
 967         LIST_HEAD(completions);
 968         int i;
 969         struct lpfc_iocbq *piocb, *next_iocb;
 970
 971         if (phba->sli_rev != LPFC_SLI_REV4) {
 972                 for (i = 0; i < psli->num_rings; i++) {
 973                         pring = &psli->sli3_ring[i];
 974                         spin_lock_irq(&phba->hbalock);
 975                         /* At this point in time the HBA is either reset or DOA
 976                          * Nothing should be on txcmplq as it will
 977                          * NEVER complete.
 978                          */
 979                         list_splice_init(&pring->txcmplq, &completions);
 980                         pring->txcmplq_cnt = 0;
 981                         spin_unlock_irq(&phba->hbalock);
 982
 983                         lpfc_sli_abort_iocb_ring(phba, pring);
 984                 }
 985                 /* Cancel all the IOCBs from the completions list */
 986                 lpfc_sli_cancel_iocbs(phba, &completions,
 987                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 988                 return;
 989         }
 990         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 991                 pring = qp->pring;
 992                 if (!pring)
 993                         continue;
 994                 spin_lock_irq(&pring->ring_lock);
 995                 list_for_each_entry_safe(piocb, next_iocb,
 996                                          &pring->txcmplq, list)
 997                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
 998                 list_splice_init(&pring->txcmplq, &completions);
 999                 pring->txcmplq_cnt = 0;
1000                 spin_unlock_irq(&pring->ring_lock);
1001                 lpfc_sli_abort_iocb_ring(phba, pring);
1002         }
1003         /* Cancel all the IOCBs from the completions list */
1004         lpfc_sli_cancel_iocbs(phba, &completions,
1005                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1006 }
1007
1008 /**
1009  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1010         int i;
1011  * @phba: pointer to lpfc HBA data structure.
1012  *
1013  * This routine will do uninitialization after the HBA is reset when bring
1014  * down the SLI Layer.
1015  *
1016  * Return codes
1017  *   0 - success.
1018  *   Any other value - error.
1019  **/
1020 static int
1021 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1022 {
1023         lpfc_hba_free_post_buf(phba);
1024         lpfc_hba_clean_txcmplq(phba);
1025         return 0;
1026 }
1027
1028 /**
1029  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1030  * @phba: pointer to lpfc HBA data structure.
1031  *
1032  * This routine will do uninitialization after the HBA is reset when bring
1033  * down the SLI Layer.
1034  *
1035  * Return codes
1036  *   0 - success.
1037  *   Any other value - error.
1038  **/
1039 static int
1040 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1041 {
1042         struct lpfc_io_buf *psb, *psb_next;
1043         struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next;
1044         struct lpfc_sli4_hdw_queue *qp;
1045         LIST_HEAD(aborts);
1046         LIST_HEAD(nvme_aborts);
1047         LIST_HEAD(nvmet_aborts);
1048         struct lpfc_sglq *sglq_entry = NULL;
1049         int cnt, idx;
1050
1051
1052         lpfc_sli_hbqbuf_free_all(phba);
1053         lpfc_hba_clean_txcmplq(phba);
1054
1055         /* At this point in time the HBA is either reset or DOA. Either
1056          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1057          * on the lpfc_els_sgl_list so that it can either be freed if the
1058          * driver is unloading or reposted if the driver is restarting
1059          * the port.
1060          */
1061         spin_lock_irq(&phba->hbalock);  /* required for lpfc_els_sgl_list and */
1062                                         /* scsl_buf_list */
1063         /* sgl_list_lock required because worker thread uses this
1064          * list.
1065          */
1066         spin_lock(&phba->sli4_hba.sgl_list_lock);
1067         list_for_each_entry(sglq_entry,
1068                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1069                 sglq_entry->state = SGL_FREED;
1070
1071         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1072                         &phba->sli4_hba.lpfc_els_sgl_list);
1073
1074
1075         spin_unlock(&phba->sli4_hba.sgl_list_lock);
1076
1077         /* abts_xxxx_buf_list_lock required because worker thread uses this
1078          * list.
1079          */
1080         cnt = 0;
1081         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1082                 qp = &phba->sli4_hba.hdwq[idx];
1083
1084                 spin_lock(&qp->abts_scsi_buf_list_lock);
1085                 list_splice_init(&qp->lpfc_abts_scsi_buf_list,
1086                                  &aborts);
1087
1088                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1089                         psb->pCmd = NULL;
1090                         psb->status = IOSTAT_SUCCESS;
1091                         cnt++;
1092                 }
1093                 spin_lock(&qp->io_buf_list_put_lock);
1094                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1095                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1096                 qp->abts_scsi_io_bufs = 0;
1097                 spin_unlock(&qp->io_buf_list_put_lock);
1098                 spin_unlock(&qp->abts_scsi_buf_list_lock);
1099
1100                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1101                         spin_lock(&qp->abts_nvme_buf_list_lock);
1102                         list_splice_init(&qp->lpfc_abts_nvme_buf_list,
1103                                          &nvme_aborts);
1104                         list_for_each_entry_safe(psb, psb_next, &nvme_aborts,
1105                                                  list) {
1106                                 psb->pCmd = NULL;
1107                                 psb->status = IOSTAT_SUCCESS;
1108                                 cnt++;
1109                         }
1110                         spin_lock(&qp->io_buf_list_put_lock);
1111                         qp->put_io_bufs += qp->abts_nvme_io_bufs;
1112                         qp->abts_nvme_io_bufs = 0;
1113                         list_splice_init(&nvme_aborts,
1114                                          &qp->lpfc_io_buf_list_put);
1115                         spin_unlock(&qp->io_buf_list_put_lock);
1116                         spin_unlock(&qp->abts_nvme_buf_list_lock);
1117
1118                 }
1119         }
1120
1121         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1122                 spin_lock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1123                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1124                                  &nvmet_aborts);
1125                 spin_unlock(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1126                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1127                         ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP);
1128                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1129                 }
1130         }
1131
1132         spin_unlock_irq(&phba->hbalock);
1133         lpfc_sli4_free_sp_events(phba);
1134         return cnt;
1135 }
1136
1137 /**
1138  * lpfc_hba_down_post - Wrapper func for hba down post routine
1139  * @phba: pointer to lpfc HBA data structure.
1140  *
1141  * This routine wraps the actual SLI3 or SLI4 routine for performing
1142  * uninitialization after the HBA is reset when bring down the SLI Layer.
1143  *
1144  * Return codes
1145  *   0 - success.
1146  *   Any other value - error.
1147  **/
1148 int
1149 lpfc_hba_down_post(struct lpfc_hba *phba)
1150 {
1151         return (*phba->lpfc_hba_down_post)(phba);
1152 }
1153
1154 /**
1155  * lpfc_hb_timeout - The HBA-timer timeout handler
1156  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1157  *
1158  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1159  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1160  * work-port-events bitmap and the worker thread is notified. This timeout
1161  * event will be used by the worker thread to invoke the actual timeout
1162  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1163  * be performed in the timeout handler and the HBA timeout event bit shall
1164  * be cleared by the worker thread after it has taken the event bitmap out.
1165  **/
1166 static void
1167 lpfc_hb_timeout(struct timer_list *t)
1168 {
1169         struct lpfc_hba *phba;
1170         uint32_t tmo_posted;
1171         unsigned long iflag;
1172
1173         phba = from_timer(phba, t, hb_tmofunc);
1174
1175         /* Check for heart beat timeout conditions */
1176         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1177         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1178         if (!tmo_posted)
1179                 phba->pport->work_port_events |= WORKER_HB_TMO;
1180         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1181
1182         /* Tell the worker thread there is work to do */
1183         if (!tmo_posted)
1184                 lpfc_worker_wake_up(phba);
1185         return;
1186 }
1187
1188 /**
1189  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1190  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1191  *
1192  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1193  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1194  * work-port-events bitmap and the worker thread is notified. This timeout
1195  * event will be used by the worker thread to invoke the actual timeout
1196  * handler routine, lpfc_rrq_handler. Any periodical operations will
1197  * be performed in the timeout handler and the RRQ timeout event bit shall
1198  * be cleared by the worker thread after it has taken the event bitmap out.
1199  **/
1200 static void
1201 lpfc_rrq_timeout(struct timer_list *t)
1202 {
1203         struct lpfc_hba *phba;
1204         unsigned long iflag;
1205
1206         phba = from_timer(phba, t, rrq_tmr);
1207         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1208         if (!(phba->pport->load_flag & FC_UNLOADING))
1209                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1210         else
1211                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1212         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1213
1214         if (!(phba->pport->load_flag & FC_UNLOADING))
1215                 lpfc_worker_wake_up(phba);
1216 }
1217
1218 /**
1219  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1220  * @phba: pointer to lpfc hba data structure.
1221  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1222  *
1223  * This is the callback function to the lpfc heart-beat mailbox command.
1224  * If configured, the lpfc driver issues the heart-beat mailbox command to
1225  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1226  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1227  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1228  * heart-beat outstanding state. Once the mailbox command comes back and
1229  * no error conditions detected, the heart-beat mailbox command timer is
1230  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1231  * state is cleared for the next heart-beat. If the timer expired with the
1232  * heart-beat outstanding state set, the driver will put the HBA offline.
1233  **/
1234 static void
1235 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1236 {
1237         unsigned long drvr_flag;
1238
1239         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1240         phba->hb_outstanding = 0;
1241         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1242
1243         /* Check and reset heart-beat timer is necessary */
1244         mempool_free(pmboxq, phba->mbox_mem_pool);
1245         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1246                 !(phba->link_state == LPFC_HBA_ERROR) &&
1247                 !(phba->pport->load_flag & FC_UNLOADING))
1248                 mod_timer(&phba->hb_tmofunc,
1249                           jiffies +
1250                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1251         return;
1252 }
1253
1254 static void
1255 lpfc_hb_eq_delay_work(struct work_struct *work)
1256 {
1257         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1258                                              struct lpfc_hba, eq_delay_work);
1259         struct lpfc_eq_intr_info *eqi, *eqi_new;
1260         struct lpfc_queue *eq, *eq_next;
1261         unsigned char *eqcnt = NULL;
1262         uint32_t usdelay;
1263         int i;
1264
1265         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1266                 return;
1267
1268         if (phba->link_state == LPFC_HBA_ERROR ||
1269             phba->pport->fc_flag & FC_OFFLINE_MODE)
1270                 goto requeue;
1271
1272         eqcnt = kcalloc(num_possible_cpus(), sizeof(unsigned char),
1273                         GFP_KERNEL);
1274         if (!eqcnt)
1275                 goto requeue;
1276
1277         for (i = 0; i < phba->cfg_irq_chann; i++) {
1278                 eq = phba->sli4_hba.hdwq[i].hba_eq;
1279                 if (eq && eqcnt[eq->last_cpu] < 2)
1280                         eqcnt[eq->last_cpu]++;
1281                 continue;
1282         }
1283
1284         for_each_present_cpu(i) {
1285                 if (phba->cfg_irq_chann > 1 && eqcnt[i] < 2)
1286                         continue;
1287
1288                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1289
1290                 usdelay = (eqi->icnt / LPFC_IMAX_THRESHOLD) *
1291                            LPFC_EQ_DELAY_STEP;
1292                 if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1293                         usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1294
1295                 eqi->icnt = 0;
1296
1297                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1298                         if (eq->last_cpu != i) {
1299                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1300                                                       eq->last_cpu);
1301                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1302                                 continue;
1303                         }
1304                         if (usdelay != eq->q_mode)
1305                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1306                                                          usdelay);
1307                 }
1308         }
1309
1310         kfree(eqcnt);
1311
1312 requeue:
1313         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1314                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1315 }
1316
1317 /**
1318  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1319  * @phba: pointer to lpfc hba data structure.
1320  *
1321  * For each heartbeat, this routine does some heuristic methods to adjust
1322  * XRI distribution. The goal is to fully utilize free XRIs.
1323  **/
1324 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1325 {
1326         u32 i;
1327         u32 hwq_count;
1328
1329         hwq_count = phba->cfg_hdw_queue;
1330         for (i = 0; i < hwq_count; i++) {
1331                 /* Adjust XRIs in private pool */
1332                 lpfc_adjust_pvt_pool_count(phba, i);
1333
1334                 /* Adjust high watermark */
1335                 lpfc_adjust_high_watermark(phba, i);
1336
1337 #ifdef LPFC_MXP_STAT
1338                 /* Snapshot pbl, pvt and busy count */
1339                 lpfc_snapshot_mxp(phba, i);
1340 #endif
1341         }
1342 }
1343
1344 /**
1345  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1346  * @phba: pointer to lpfc hba data structure.
1347  *
1348  * This is the actual HBA-timer timeout handler to be invoked by the worker
1349  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1350  * handler performs any periodic operations needed for the device. If such
1351  * periodic event has already been attended to either in the interrupt handler
1352  * or by processing slow-ring or fast-ring events within the HBA-timer
1353  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1354  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1355  * is configured and there is no heart-beat mailbox command outstanding, a
1356  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1357  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1358  * to offline.
1359  **/
1360 void
1361 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1362 {
1363         struct lpfc_vport **vports;
1364         LPFC_MBOXQ_t *pmboxq;
1365         struct lpfc_dmabuf *buf_ptr;
1366         int retval, i;
1367         struct lpfc_sli *psli = &phba->sli;
1368         LIST_HEAD(completions);
1369
1370         if (phba->cfg_xri_rebalancing) {
1371                 /* Multi-XRI pools handler */
1372                 lpfc_hb_mxp_handler(phba);
1373         }
1374
1375         vports = lpfc_create_vport_work_array(phba);
1376         if (vports != NULL)
1377                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1378                         lpfc_rcv_seq_check_edtov(vports[i]);
1379                         lpfc_fdmi_num_disc_check(vports[i]);
1380                 }
1381         lpfc_destroy_vport_work_array(phba, vports);
1382
1383         if ((phba->link_state == LPFC_HBA_ERROR) ||
1384                 (phba->pport->load_flag & FC_UNLOADING) ||
1385                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1386                 return;
1387
1388         spin_lock_irq(&phba->pport->work_port_lock);
1389
1390         if (time_after(phba->last_completion_time +
1391                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1392                         jiffies)) {
1393                 spin_unlock_irq(&phba->pport->work_port_lock);
1394                 if (!phba->hb_outstanding)
1395                         mod_timer(&phba->hb_tmofunc,
1396                                 jiffies +
1397                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1398                 else
1399                         mod_timer(&phba->hb_tmofunc,
1400                                 jiffies +
1401                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1402                 return;
1403         }
1404         spin_unlock_irq(&phba->pport->work_port_lock);
1405
1406         if (phba->elsbuf_cnt &&
1407                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1408                 spin_lock_irq(&phba->hbalock);
1409                 list_splice_init(&phba->elsbuf, &completions);
1410                 phba->elsbuf_cnt = 0;
1411                 phba->elsbuf_prev_cnt = 0;
1412                 spin_unlock_irq(&phba->hbalock);
1413
1414                 while (!list_empty(&completions)) {
1415                         list_remove_head(&completions, buf_ptr,
1416                                 struct lpfc_dmabuf, list);
1417                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1418                         kfree(buf_ptr);
1419                 }
1420         }
1421         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1422
1423         /* If there is no heart beat outstanding, issue a heartbeat command */
1424         if (phba->cfg_enable_hba_heartbeat) {
1425                 if (!phba->hb_outstanding) {
1426                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1427                                 (list_empty(&psli->mboxq))) {
1428                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1429                                                         GFP_KERNEL);
1430                                 if (!pmboxq) {
1431                                         mod_timer(&phba->hb_tmofunc,
1432                                                  jiffies +
1433                                                  msecs_to_jiffies(1000 *
1434                                                  LPFC_HB_MBOX_INTERVAL));
1435                                         return;
1436                                 }
1437
1438                                 lpfc_heart_beat(phba, pmboxq);
1439                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1440                                 pmboxq->vport = phba->pport;
1441                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1442                                                 MBX_NOWAIT);
1443
1444                                 if (retval != MBX_BUSY &&
1445                                         retval != MBX_SUCCESS) {
1446                                         mempool_free(pmboxq,
1447                                                         phba->mbox_mem_pool);
1448                                         mod_timer(&phba->hb_tmofunc,
1449                                                 jiffies +
1450                                                 msecs_to_jiffies(1000 *
1451                                                 LPFC_HB_MBOX_INTERVAL));
1452                                         return;
1453                                 }
1454                                 phba->skipped_hb = 0;
1455                                 phba->hb_outstanding = 1;
1456                         } else if (time_before_eq(phba->last_completion_time,
1457                                         phba->skipped_hb)) {
1458                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1459                                         "2857 Last completion time not "
1460                                         " updated in %d ms\n",
1461                                         jiffies_to_msecs(jiffies
1462                                                  - phba->last_completion_time));
1463                         } else
1464                                 phba->skipped_hb = jiffies;
1465
1466                         mod_timer(&phba->hb_tmofunc,
1467                                  jiffies +
1468                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1469                         return;
1470                 } else {
1471                         /*
1472                         * If heart beat timeout called with hb_outstanding set
1473                         * we need to give the hb mailbox cmd a chance to
1474                         * complete or TMO.
1475                         */
1476                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1477                                         "0459 Adapter heartbeat still out"
1478                                         "standing:last compl time was %d ms.\n",
1479                                         jiffies_to_msecs(jiffies
1480                                                  - phba->last_completion_time));
1481                         mod_timer(&phba->hb_tmofunc,
1482                                 jiffies +
1483                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1484                 }
1485         } else {
1486                         mod_timer(&phba->hb_tmofunc,
1487                                 jiffies +
1488                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1489         }
1490 }
1491
1492 /**
1493  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1494  * @phba: pointer to lpfc hba data structure.
1495  *
1496  * This routine is called to bring the HBA offline when HBA hardware error
1497  * other than Port Error 6 has been detected.
1498  **/
1499 static void
1500 lpfc_offline_eratt(struct lpfc_hba *phba)
1501 {
1502         struct lpfc_sli   *psli = &phba->sli;
1503
1504         spin_lock_irq(&phba->hbalock);
1505         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1506         spin_unlock_irq(&phba->hbalock);
1507         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1508
1509         lpfc_offline(phba);
1510         lpfc_reset_barrier(phba);
1511         spin_lock_irq(&phba->hbalock);
1512         lpfc_sli_brdreset(phba);
1513         spin_unlock_irq(&phba->hbalock);
1514         lpfc_hba_down_post(phba);
1515         lpfc_sli_brdready(phba, HS_MBRDY);
1516         lpfc_unblock_mgmt_io(phba);
1517         phba->link_state = LPFC_HBA_ERROR;
1518         return;
1519 }
1520
1521 /**
1522  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1523  * @phba: pointer to lpfc hba data structure.
1524  *
1525  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1526  * other than Port Error 6 has been detected.
1527  **/
1528 void
1529 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1530 {
1531         spin_lock_irq(&phba->hbalock);
1532         phba->link_state = LPFC_HBA_ERROR;
1533         spin_unlock_irq(&phba->hbalock);
1534
1535         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1536         lpfc_offline(phba);
1537         lpfc_hba_down_post(phba);
1538         lpfc_unblock_mgmt_io(phba);
1539 }
1540
1541 /**
1542  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1543  * @phba: pointer to lpfc hba data structure.
1544  *
1545  * This routine is invoked to handle the deferred HBA hardware error
1546  * conditions. This type of error is indicated by HBA by setting ER1
1547  * and another ER bit in the host status register. The driver will
1548  * wait until the ER1 bit clears before handling the error condition.
1549  **/
1550 static void
1551 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1552 {
1553         uint32_t old_host_status = phba->work_hs;
1554         struct lpfc_sli *psli = &phba->sli;
1555
1556         /* If the pci channel is offline, ignore possible errors,
1557          * since we cannot communicate with the pci card anyway.
1558          */
1559         if (pci_channel_offline(phba->pcidev)) {
1560                 spin_lock_irq(&phba->hbalock);
1561                 phba->hba_flag &= ~DEFER_ERATT;
1562                 spin_unlock_irq(&phba->hbalock);
1563                 return;
1564         }
1565
1566         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1567                 "0479 Deferred Adapter Hardware Error "
1568                 "Data: x%x x%x x%x\n",
1569                 phba->work_hs,
1570                 phba->work_status[0], phba->work_status[1]);
1571
1572         spin_lock_irq(&phba->hbalock);
1573         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1574         spin_unlock_irq(&phba->hbalock);
1575
1576
1577         /*
1578          * Firmware stops when it triggred erratt. That could cause the I/Os
1579          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1580          * SCSI layer retry it after re-establishing link.
1581          */
1582         lpfc_sli_abort_fcp_rings(phba);
1583
1584         /*
1585          * There was a firmware error. Take the hba offline and then
1586          * attempt to restart it.
1587          */
1588         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1589         lpfc_offline(phba);
1590
1591         /* Wait for the ER1 bit to clear.*/
1592         while (phba->work_hs & HS_FFER1) {
1593                 msleep(100);
1594                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1595                         phba->work_hs = UNPLUG_ERR ;
1596                         break;
1597                 }
1598                 /* If driver is unloading let the worker thread continue */
1599                 if (phba->pport->load_flag & FC_UNLOADING) {
1600                         phba->work_hs = 0;
1601                         break;
1602                 }
1603         }
1604
1605         /*
1606          * This is to ptrotect against a race condition in which
1607          * first write to the host attention register clear the
1608          * host status register.
1609          */
1610         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1611                 phba->work_hs = old_host_status & ~HS_FFER1;
1612
1613         spin_lock_irq(&phba->hbalock);
1614         phba->hba_flag &= ~DEFER_ERATT;
1615         spin_unlock_irq(&phba->hbalock);
1616         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1617         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1618 }
1619
1620 static void
1621 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1622 {
1623         struct lpfc_board_event_header board_event;
1624         struct Scsi_Host *shost;
1625
1626         board_event.event_type = FC_REG_BOARD_EVENT;
1627         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1628         shost = lpfc_shost_from_vport(phba->pport);
1629         fc_host_post_vendor_event(shost, fc_get_event_number(),
1630                                   sizeof(board_event),
1631                                   (char *) &board_event,
1632                                   LPFC_NL_VENDOR_ID);
1633 }
1634
1635 /**
1636  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1637  * @phba: pointer to lpfc hba data structure.
1638  *
1639  * This routine is invoked to handle the following HBA hardware error
1640  * conditions:
1641  * 1 - HBA error attention interrupt
1642  * 2 - DMA ring index out of range
1643  * 3 - Mailbox command came back as unknown
1644  **/
1645 static void
1646 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1647 {
1648         struct lpfc_vport *vport = phba->pport;
1649         struct lpfc_sli   *psli = &phba->sli;
1650         uint32_t event_data;
1651         unsigned long temperature;
1652         struct temp_event temp_event_data;
1653         struct Scsi_Host  *shost;
1654
1655         /* If the pci channel is offline, ignore possible errors,
1656          * since we cannot communicate with the pci card anyway.
1657          */
1658         if (pci_channel_offline(phba->pcidev)) {
1659                 spin_lock_irq(&phba->hbalock);
1660                 phba->hba_flag &= ~DEFER_ERATT;
1661                 spin_unlock_irq(&phba->hbalock);
1662                 return;
1663         }
1664
1665         /* If resets are disabled then leave the HBA alone and return */
1666         if (!phba->cfg_enable_hba_reset)
1667                 return;
1668
1669         /* Send an internal error event to mgmt application */
1670         lpfc_board_errevt_to_mgmt(phba);
1671
1672         if (phba->hba_flag & DEFER_ERATT)
1673                 lpfc_handle_deferred_eratt(phba);
1674
1675         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1676                 if (phba->work_hs & HS_FFER6)
1677                         /* Re-establishing Link */
1678                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1679                                         "1301 Re-establishing Link "
1680                                         "Data: x%x x%x x%x\n",
1681                                         phba->work_hs, phba->work_status[0],
1682                                         phba->work_status[1]);
1683                 if (phba->work_hs & HS_FFER8)
1684                         /* Device Zeroization */
1685                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1686                                         "2861 Host Authentication device "
1687                                         "zeroization Data:x%x x%x x%x\n",
1688                                         phba->work_hs, phba->work_status[0],
1689                                         phba->work_status[1]);
1690
1691                 spin_lock_irq(&phba->hbalock);
1692                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1693                 spin_unlock_irq(&phba->hbalock);
1694
1695                 /*
1696                 * Firmware stops when it triggled erratt with HS_FFER6.
1697                 * That could cause the I/Os dropped by the firmware.
1698                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1699                 * retry it after re-establishing link.
1700                 */
1701                 lpfc_sli_abort_fcp_rings(phba);
1702
1703                 /*
1704                  * There was a firmware error.  Take the hba offline and then
1705                  * attempt to restart it.
1706                  */
1707                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1708                 lpfc_offline(phba);
1709                 lpfc_sli_brdrestart(phba);
1710                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1711                         lpfc_unblock_mgmt_io(phba);
1712                         return;
1713                 }
1714                 lpfc_unblock_mgmt_io(phba);
1715         } else if (phba->work_hs & HS_CRIT_TEMP) {
1716                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1717                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1718                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1719                 temp_event_data.data = (uint32_t)temperature;
1720
1721                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1722                                 "0406 Adapter maximum temperature exceeded "
1723                                 "(%ld), taking this port offline "
1724                                 "Data: x%x x%x x%x\n",
1725                                 temperature, phba->work_hs,
1726                                 phba->work_status[0], phba->work_status[1]);
1727
1728                 shost = lpfc_shost_from_vport(phba->pport);
1729                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1730                                           sizeof(temp_event_data),
1731                                           (char *) &temp_event_data,
1732                                           SCSI_NL_VID_TYPE_PCI
1733                                           | PCI_VENDOR_ID_EMULEX);
1734
1735                 spin_lock_irq(&phba->hbalock);
1736                 phba->over_temp_state = HBA_OVER_TEMP;
1737                 spin_unlock_irq(&phba->hbalock);
1738                 lpfc_offline_eratt(phba);
1739
1740         } else {
1741                 /* The if clause above forces this code path when the status
1742                  * failure is a value other than FFER6. Do not call the offline
1743                  * twice. This is the adapter hardware error path.
1744                  */
1745                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1746                                 "0457 Adapter Hardware Error "
1747                                 "Data: x%x x%x x%x\n",
1748                                 phba->work_hs,
1749                                 phba->work_status[0], phba->work_status[1]);
1750
1751                 event_data = FC_REG_DUMP_EVENT;
1752                 shost = lpfc_shost_from_vport(vport);
1753                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1754                                 sizeof(event_data), (char *) &event_data,
1755                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1756
1757                 lpfc_offline_eratt(phba);
1758         }
1759         return;
1760 }
1761
1762 /**
1763  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1764  * @phba: pointer to lpfc hba data structure.
1765  * @mbx_action: flag for mailbox shutdown action.
1766  *
1767  * This routine is invoked to perform an SLI4 port PCI function reset in
1768  * response to port status register polling attention. It waits for port
1769  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1770  * During this process, interrupt vectors are freed and later requested
1771  * for handling possible port resource change.
1772  **/
1773 static int
1774 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1775                             bool en_rn_msg)
1776 {
1777         int rc;
1778         uint32_t intr_mode;
1779
1780         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1781             LPFC_SLI_INTF_IF_TYPE_2) {
1782                 /*
1783                  * On error status condition, driver need to wait for port
1784                  * ready before performing reset.
1785                  */
1786                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1787                 if (rc)
1788                         return rc;
1789         }
1790
1791         /* need reset: attempt for port recovery */
1792         if (en_rn_msg)
1793                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1794                                 "2887 Reset Needed: Attempting Port "
1795                                 "Recovery...\n");
1796         lpfc_offline_prep(phba, mbx_action);
1797         lpfc_offline(phba);
1798         /* release interrupt for possible resource change */
1799         lpfc_sli4_disable_intr(phba);
1800         rc = lpfc_sli_brdrestart(phba);
1801         if (rc) {
1802                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1803                                 "6309 Failed to restart board\n");
1804                 return rc;
1805         }
1806         /* request and enable interrupt */
1807         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1808         if (intr_mode == LPFC_INTR_ERROR) {
1809                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1810                                 "3175 Failed to enable interrupt\n");
1811                 return -EIO;
1812         }
1813         phba->intr_mode = intr_mode;
1814         rc = lpfc_online(phba);
1815         if (rc == 0)
1816                 lpfc_unblock_mgmt_io(phba);
1817
1818         return rc;
1819 }
1820
1821 /**
1822  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1823  * @phba: pointer to lpfc hba data structure.
1824  *
1825  * This routine is invoked to handle the SLI4 HBA hardware error attention
1826  * conditions.
1827  **/
1828 static void
1829 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1830 {
1831         struct lpfc_vport *vport = phba->pport;
1832         uint32_t event_data;
1833         struct Scsi_Host *shost;
1834         uint32_t if_type;
1835         struct lpfc_register portstat_reg = {0};
1836         uint32_t reg_err1, reg_err2;
1837         uint32_t uerrlo_reg, uemasklo_reg;
1838         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1839         bool en_rn_msg = true;
1840         struct temp_event temp_event_data;
1841         struct lpfc_register portsmphr_reg;
1842         int rc, i;
1843
1844         /* If the pci channel is offline, ignore possible errors, since
1845          * we cannot communicate with the pci card anyway.
1846          */
1847         if (pci_channel_offline(phba->pcidev))
1848                 return;
1849
1850         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1851         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1852         switch (if_type) {
1853         case LPFC_SLI_INTF_IF_TYPE_0:
1854                 pci_rd_rc1 = lpfc_readl(
1855                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1856                                 &uerrlo_reg);
1857                 pci_rd_rc2 = lpfc_readl(
1858                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1859                                 &uemasklo_reg);
1860                 /* consider PCI bus read error as pci_channel_offline */
1861                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1862                         return;
1863                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1864                         lpfc_sli4_offline_eratt(phba);
1865                         return;
1866                 }
1867                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1868                                 "7623 Checking UE recoverable");
1869
1870                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1871                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1872                                        &portsmphr_reg.word0))
1873                                 continue;
1874
1875                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1876                                                    &portsmphr_reg);
1877                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1878                             LPFC_PORT_SEM_UE_RECOVERABLE)
1879                                 break;
1880                         /*Sleep for 1Sec, before checking SEMAPHORE */
1881                         msleep(1000);
1882                 }
1883
1884                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1885                                 "4827 smphr_port_status x%x : Waited %dSec",
1886                                 smphr_port_status, i);
1887
1888                 /* Recoverable UE, reset the HBA device */
1889                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1890                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1891                         for (i = 0; i < 20; i++) {
1892                                 msleep(1000);
1893                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1894                                     &portsmphr_reg.word0) &&
1895                                     (LPFC_POST_STAGE_PORT_READY ==
1896                                      bf_get(lpfc_port_smphr_port_status,
1897                                      &portsmphr_reg))) {
1898                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1899                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1900                                         if (rc == 0)
1901                                                 return;
1902                                         lpfc_printf_log(phba,
1903                                                 KERN_ERR, LOG_INIT,
1904                                                 "4215 Failed to recover UE");
1905                                         break;
1906                                 }
1907                         }
1908                 }
1909                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1910                                 "7624 Firmware not ready: Failing UE recovery,"
1911                                 " waited %dSec", i);
1912                 lpfc_sli4_offline_eratt(phba);
1913                 break;
1914
1915         case LPFC_SLI_INTF_IF_TYPE_2:
1916         case LPFC_SLI_INTF_IF_TYPE_6:
1917                 pci_rd_rc1 = lpfc_readl(
1918                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1919                                 &portstat_reg.word0);
1920                 /* consider PCI bus read error as pci_channel_offline */
1921                 if (pci_rd_rc1 == -EIO) {
1922                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1923                                 "3151 PCI bus read access failure: x%x\n",
1924                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1925                         return;
1926                 }
1927                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1928                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1929                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1930                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1931                                 "2889 Port Overtemperature event, "
1932                                 "taking port offline Data: x%x x%x\n",
1933                                 reg_err1, reg_err2);
1934
1935                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1936                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1937                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1938                         temp_event_data.data = 0xFFFFFFFF;
1939
1940                         shost = lpfc_shost_from_vport(phba->pport);
1941                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1942                                                   sizeof(temp_event_data),
1943                                                   (char *)&temp_event_data,
1944                                                   SCSI_NL_VID_TYPE_PCI
1945                                                   | PCI_VENDOR_ID_EMULEX);
1946
1947                         spin_lock_irq(&phba->hbalock);
1948                         phba->over_temp_state = HBA_OVER_TEMP;
1949                         spin_unlock_irq(&phba->hbalock);
1950                         lpfc_sli4_offline_eratt(phba);
1951                         return;
1952                 }
1953                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1954                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1955                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1956                                         "3143 Port Down: Firmware Update "
1957                                         "Detected\n");
1958                         en_rn_msg = false;
1959                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1960                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1961                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1962                                         "3144 Port Down: Debug Dump\n");
1963                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1964                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1965                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1966                                         "3145 Port Down: Provisioning\n");
1967
1968                 /* If resets are disabled then leave the HBA alone and return */
1969                 if (!phba->cfg_enable_hba_reset)
1970                         return;
1971
1972                 /* Check port status register for function reset */
1973                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1974                                 en_rn_msg);
1975                 if (rc == 0) {
1976                         /* don't report event on forced debug dump */
1977                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1978                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1979                                 return;
1980                         else
1981                                 break;
1982                 }
1983                 /* fall through for not able to recover */
1984                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1985                                 "3152 Unrecoverable error, bring the port "
1986                                 "offline\n");
1987                 lpfc_sli4_offline_eratt(phba);
1988                 break;
1989         case LPFC_SLI_INTF_IF_TYPE_1:
1990         default:
1991                 break;
1992         }
1993         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1994                         "3123 Report dump event to upper layer\n");
1995         /* Send an internal error event to mgmt application */
1996         lpfc_board_errevt_to_mgmt(phba);
1997
1998         event_data = FC_REG_DUMP_EVENT;
1999         shost = lpfc_shost_from_vport(vport);
2000         fc_host_post_vendor_event(shost, fc_get_event_number(),
2001                                   sizeof(event_data), (char *) &event_data,
2002                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2003 }
2004
2005 /**
2006  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2007  * @phba: pointer to lpfc HBA data structure.
2008  *
2009  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2010  * routine from the API jump table function pointer from the lpfc_hba struct.
2011  *
2012  * Return codes
2013  *   0 - success.
2014  *   Any other value - error.
2015  **/
2016 void
2017 lpfc_handle_eratt(struct lpfc_hba *phba)
2018 {
2019         (*phba->lpfc_handle_eratt)(phba);
2020 }
2021
2022 /**
2023  * lpfc_handle_latt - The HBA link event handler
2024  * @phba: pointer to lpfc hba data structure.
2025  *
2026  * This routine is invoked from the worker thread to handle a HBA host
2027  * attention link event. SLI3 only.
2028  **/
2029 void
2030 lpfc_handle_latt(struct lpfc_hba *phba)
2031 {
2032         struct lpfc_vport *vport = phba->pport;
2033         struct lpfc_sli   *psli = &phba->sli;
2034         LPFC_MBOXQ_t *pmb;
2035         volatile uint32_t control;
2036         struct lpfc_dmabuf *mp;
2037         int rc = 0;
2038
2039         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2040         if (!pmb) {
2041                 rc = 1;
2042                 goto lpfc_handle_latt_err_exit;
2043         }
2044
2045         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2046         if (!mp) {
2047                 rc = 2;
2048                 goto lpfc_handle_latt_free_pmb;
2049         }
2050
2051         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2052         if (!mp->virt) {
2053                 rc = 3;
2054                 goto lpfc_handle_latt_free_mp;
2055         }
2056
2057         /* Cleanup any outstanding ELS commands */
2058         lpfc_els_flush_all_cmd(phba);
2059
2060         psli->slistat.link_event++;
2061         lpfc_read_topology(phba, pmb, mp);
2062         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2063         pmb->vport = vport;
2064         /* Block ELS IOCBs until we have processed this mbox command */
2065         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2066         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2067         if (rc == MBX_NOT_FINISHED) {
2068                 rc = 4;
2069                 goto lpfc_handle_latt_free_mbuf;
2070         }
2071
2072         /* Clear Link Attention in HA REG */
2073         spin_lock_irq(&phba->hbalock);
2074         writel(HA_LATT, phba->HAregaddr);
2075         readl(phba->HAregaddr); /* flush */
2076         spin_unlock_irq(&phba->hbalock);
2077
2078         return;
2079
2080 lpfc_handle_latt_free_mbuf:
2081         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2082         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2083 lpfc_handle_latt_free_mp:
2084         kfree(mp);
2085 lpfc_handle_latt_free_pmb:
2086         mempool_free(pmb, phba->mbox_mem_pool);
2087 lpfc_handle_latt_err_exit:
2088         /* Enable Link attention interrupts */
2089         spin_lock_irq(&phba->hbalock);
2090         psli->sli_flag |= LPFC_PROCESS_LA;
2091         control = readl(phba->HCregaddr);
2092         control |= HC_LAINT_ENA;
2093         writel(control, phba->HCregaddr);
2094         readl(phba->HCregaddr); /* flush */
2095
2096         /* Clear Link Attention in HA REG */
2097         writel(HA_LATT, phba->HAregaddr);
2098         readl(phba->HAregaddr); /* flush */
2099         spin_unlock_irq(&phba->hbalock);
2100         lpfc_linkdown(phba);
2101         phba->link_state = LPFC_HBA_ERROR;
2102
2103         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
2104                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2105
2106         return;
2107 }
2108
2109 /**
2110  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2111  * @phba: pointer to lpfc hba data structure.
2112  * @vpd: pointer to the vital product data.
2113  * @len: length of the vital product data in bytes.
2114  *
2115  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2116  * an array of characters. In this routine, the ModelName, ProgramType, and
2117  * ModelDesc, etc. fields of the phba data structure will be populated.
2118  *
2119  * Return codes
2120  *   0 - pointer to the VPD passed in is NULL
2121  *   1 - success
2122  **/
2123 int
2124 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2125 {
2126         uint8_t lenlo, lenhi;
2127         int Length;
2128         int i, j;
2129         int finished = 0;
2130         int index = 0;
2131
2132         if (!vpd)
2133                 return 0;
2134
2135         /* Vital Product */
2136         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2137                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2138                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2139                         (uint32_t) vpd[3]);
2140         while (!finished && (index < (len - 4))) {
2141                 switch (vpd[index]) {
2142                 case 0x82:
2143                 case 0x91:
2144                         index += 1;
2145                         lenlo = vpd[index];
2146                         index += 1;
2147                         lenhi = vpd[index];
2148                         index += 1;
2149                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2150                         index += i;
2151                         break;
2152                 case 0x90:
2153                         index += 1;
2154                         lenlo = vpd[index];
2155                         index += 1;
2156                         lenhi = vpd[index];
2157                         index += 1;
2158                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2159                         if (Length > len - index)
2160                                 Length = len - index;
2161                         while (Length > 0) {
2162                         /* Look for Serial Number */
2163                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2164                                 index += 2;
2165                                 i = vpd[index];
2166                                 index += 1;
2167                                 j = 0;
2168                                 Length -= (3+i);
2169                                 while(i--) {
2170                                         phba->SerialNumber[j++] = vpd[index++];
2171                                         if (j == 31)
2172                                                 break;
2173                                 }
2174                                 phba->SerialNumber[j] = 0;
2175                                 continue;
2176                         }
2177                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2178                                 phba->vpd_flag |= VPD_MODEL_DESC;
2179                                 index += 2;
2180                                 i = vpd[index];
2181                                 index += 1;
2182                                 j = 0;
2183                                 Length -= (3+i);
2184                                 while(i--) {
2185                                         phba->ModelDesc[j++] = vpd[index++];
2186                                         if (j == 255)
2187                                                 break;
2188                                 }
2189                                 phba->ModelDesc[j] = 0;
2190                                 continue;
2191                         }
2192                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2193                                 phba->vpd_flag |= VPD_MODEL_NAME;
2194                                 index += 2;
2195                                 i = vpd[index];
2196                                 index += 1;
2197                                 j = 0;
2198                                 Length -= (3+i);
2199                                 while(i--) {
2200                                         phba->ModelName[j++] = vpd[index++];
2201                                         if (j == 79)
2202                                                 break;
2203                                 }
2204                                 phba->ModelName[j] = 0;
2205                                 continue;
2206                         }
2207                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2208                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2209                                 index += 2;
2210                                 i = vpd[index];
2211                                 index += 1;
2212                                 j = 0;
2213                                 Length -= (3+i);
2214                                 while(i--) {
2215                                         phba->ProgramType[j++] = vpd[index++];
2216                                         if (j == 255)
2217                                                 break;
2218                                 }
2219                                 phba->ProgramType[j] = 0;
2220                                 continue;
2221                         }
2222                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2223                                 phba->vpd_flag |= VPD_PORT;
2224                                 index += 2;
2225                                 i = vpd[index];
2226                                 index += 1;
2227                                 j = 0;
2228                                 Length -= (3+i);
2229                                 while(i--) {
2230                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2231                                             (phba->sli4_hba.pport_name_sta ==
2232                                              LPFC_SLI4_PPNAME_GET)) {
2233                                                 j++;
2234                                                 index++;
2235                                         } else
2236                                                 phba->Port[j++] = vpd[index++];
2237                                         if (j == 19)
2238                                                 break;
2239                                 }
2240                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2241                                     (phba->sli4_hba.pport_name_sta ==
2242                                      LPFC_SLI4_PPNAME_NON))
2243                                         phba->Port[j] = 0;
2244                                 continue;
2245                         }
2246                         else {
2247                                 index += 2;
2248                                 i = vpd[index];
2249                                 index += 1;
2250                                 index += i;
2251                                 Length -= (3 + i);
2252                         }
2253                 }
2254                 finished = 0;
2255                 break;
2256                 case 0x78:
2257                         finished = 1;
2258                         break;
2259                 default:
2260                         index ++;
2261                         break;
2262                 }
2263         }
2264
2265         return(1);
2266 }
2267
2268 /**
2269  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2270  * @phba: pointer to lpfc hba data structure.
2271  * @mdp: pointer to the data structure to hold the derived model name.
2272  * @descp: pointer to the data structure to hold the derived description.
2273  *
2274  * This routine retrieves HBA's description based on its registered PCI device
2275  * ID. The @descp passed into this function points to an array of 256 chars. It
2276  * shall be returned with the model name, maximum speed, and the host bus type.
2277  * The @mdp passed into this function points to an array of 80 chars. When the
2278  * function returns, the @mdp will be filled with the model name.
2279  **/
2280 static void
2281 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2282 {
2283         lpfc_vpd_t *vp;
2284         uint16_t dev_id = phba->pcidev->device;
2285         int max_speed;
2286         int GE = 0;
2287         int oneConnect = 0; /* default is not a oneConnect */
2288         struct {
2289                 char *name;
2290                 char *bus;
2291                 char *function;
2292         } m = {"<Unknown>", "", ""};
2293
2294         if (mdp && mdp[0] != '\0'
2295                 && descp && descp[0] != '\0')
2296                 return;
2297
2298         if (phba->lmt & LMT_64Gb)
2299                 max_speed = 64;
2300         else if (phba->lmt & LMT_32Gb)
2301                 max_speed = 32;
2302         else if (phba->lmt & LMT_16Gb)
2303                 max_speed = 16;
2304         else if (phba->lmt & LMT_10Gb)
2305                 max_speed = 10;
2306         else if (phba->lmt & LMT_8Gb)
2307                 max_speed = 8;
2308         else if (phba->lmt & LMT_4Gb)
2309                 max_speed = 4;
2310         else if (phba->lmt & LMT_2Gb)
2311                 max_speed = 2;
2312         else if (phba->lmt & LMT_1Gb)
2313                 max_speed = 1;
2314         else
2315                 max_speed = 0;
2316
2317         vp = &phba->vpd;
2318
2319         switch (dev_id) {
2320         case PCI_DEVICE_ID_FIREFLY:
2321                 m = (typeof(m)){"LP6000", "PCI",
2322                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2323                 break;
2324         case PCI_DEVICE_ID_SUPERFLY:
2325                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2326                         m = (typeof(m)){"LP7000", "PCI", ""};
2327                 else
2328                         m = (typeof(m)){"LP7000E", "PCI", ""};
2329                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2330                 break;
2331         case PCI_DEVICE_ID_DRAGONFLY:
2332                 m = (typeof(m)){"LP8000", "PCI",
2333                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2334                 break;
2335         case PCI_DEVICE_ID_CENTAUR:
2336                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2337                         m = (typeof(m)){"LP9002", "PCI", ""};
2338                 else
2339                         m = (typeof(m)){"LP9000", "PCI", ""};
2340                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2341                 break;
2342         case PCI_DEVICE_ID_RFLY:
2343                 m = (typeof(m)){"LP952", "PCI",
2344                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2345                 break;
2346         case PCI_DEVICE_ID_PEGASUS:
2347                 m = (typeof(m)){"LP9802", "PCI-X",
2348                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2349                 break;
2350         case PCI_DEVICE_ID_THOR:
2351                 m = (typeof(m)){"LP10000", "PCI-X",
2352                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2353                 break;
2354         case PCI_DEVICE_ID_VIPER:
2355                 m = (typeof(m)){"LPX1000",  "PCI-X",
2356                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2357                 break;
2358         case PCI_DEVICE_ID_PFLY:
2359                 m = (typeof(m)){"LP982", "PCI-X",
2360                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2361                 break;
2362         case PCI_DEVICE_ID_TFLY:
2363                 m = (typeof(m)){"LP1050", "PCI-X",
2364                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2365                 break;
2366         case PCI_DEVICE_ID_HELIOS:
2367                 m = (typeof(m)){"LP11000", "PCI-X2",
2368                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2369                 break;
2370         case PCI_DEVICE_ID_HELIOS_SCSP:
2371                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2372                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2373                 break;
2374         case PCI_DEVICE_ID_HELIOS_DCSP:
2375                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2376                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2377                 break;
2378         case PCI_DEVICE_ID_NEPTUNE:
2379                 m = (typeof(m)){"LPe1000", "PCIe",
2380                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2381                 break;
2382         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2383                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2384                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2385                 break;
2386         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2387                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2388                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2389                 break;
2390         case PCI_DEVICE_ID_BMID:
2391                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2392                 break;
2393         case PCI_DEVICE_ID_BSMB:
2394                 m = (typeof(m)){"LP111", "PCI-X2",
2395                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2396                 break;
2397         case PCI_DEVICE_ID_ZEPHYR:
2398                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2399                 break;
2400         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2401                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2402                 break;
2403         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2404                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2405                 GE = 1;
2406                 break;
2407         case PCI_DEVICE_ID_ZMID:
2408                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2409                 break;
2410         case PCI_DEVICE_ID_ZSMB:
2411                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2412                 break;
2413         case PCI_DEVICE_ID_LP101:
2414                 m = (typeof(m)){"LP101", "PCI-X",
2415                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2416                 break;
2417         case PCI_DEVICE_ID_LP10000S:
2418                 m = (typeof(m)){"LP10000-S", "PCI",
2419                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2420                 break;
2421         case PCI_DEVICE_ID_LP11000S:
2422                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2423                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2424                 break;
2425         case PCI_DEVICE_ID_LPE11000S:
2426                 m = (typeof(m)){"LPe11000-S", "PCIe",
2427                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2428                 break;
2429         case PCI_DEVICE_ID_SAT:
2430                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2431                 break;
2432         case PCI_DEVICE_ID_SAT_MID:
2433                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2434                 break;
2435         case PCI_DEVICE_ID_SAT_SMB:
2436                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2437                 break;
2438         case PCI_DEVICE_ID_SAT_DCSP:
2439                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2440                 break;
2441         case PCI_DEVICE_ID_SAT_SCSP:
2442                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2443                 break;
2444         case PCI_DEVICE_ID_SAT_S:
2445                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2446                 break;
2447         case PCI_DEVICE_ID_HORNET:
2448                 m = (typeof(m)){"LP21000", "PCIe",
2449                                 "Obsolete, Unsupported FCoE Adapter"};
2450                 GE = 1;
2451                 break;
2452         case PCI_DEVICE_ID_PROTEUS_VF:
2453                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2454                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2455                 break;
2456         case PCI_DEVICE_ID_PROTEUS_PF:
2457                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2458                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2459                 break;
2460         case PCI_DEVICE_ID_PROTEUS_S:
2461                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2462                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2463                 break;
2464         case PCI_DEVICE_ID_TIGERSHARK:
2465                 oneConnect = 1;
2466                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2467                 break;
2468         case PCI_DEVICE_ID_TOMCAT:
2469                 oneConnect = 1;
2470                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2471                 break;
2472         case PCI_DEVICE_ID_FALCON:
2473                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2474                                 "EmulexSecure Fibre"};
2475                 break;
2476         case PCI_DEVICE_ID_BALIUS:
2477                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2478                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2479                 break;
2480         case PCI_DEVICE_ID_LANCER_FC:
2481                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2482                 break;
2483         case PCI_DEVICE_ID_LANCER_FC_VF:
2484                 m = (typeof(m)){"LPe16000", "PCIe",
2485                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2486                 break;
2487         case PCI_DEVICE_ID_LANCER_FCOE:
2488                 oneConnect = 1;
2489                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2490                 break;
2491         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2492                 oneConnect = 1;
2493                 m = (typeof(m)){"OCe15100", "PCIe",
2494                                 "Obsolete, Unsupported FCoE"};
2495                 break;
2496         case PCI_DEVICE_ID_LANCER_G6_FC:
2497                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2498                 break;
2499         case PCI_DEVICE_ID_LANCER_G7_FC:
2500                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2501                 break;
2502         case PCI_DEVICE_ID_SKYHAWK:
2503         case PCI_DEVICE_ID_SKYHAWK_VF:
2504                 oneConnect = 1;
2505                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2506                 break;
2507         default:
2508                 m = (typeof(m)){"Unknown", "", ""};
2509                 break;
2510         }
2511
2512         if (mdp && mdp[0] == '\0')
2513                 snprintf(mdp, 79,"%s", m.name);
2514         /*
2515          * oneConnect hba requires special processing, they are all initiators
2516          * and we put the port number on the end
2517          */
2518         if (descp && descp[0] == '\0') {
2519                 if (oneConnect)
2520                         snprintf(descp, 255,
2521                                 "Emulex OneConnect %s, %s Initiator %s",
2522                                 m.name, m.function,
2523                                 phba->Port);
2524                 else if (max_speed == 0)
2525                         snprintf(descp, 255,
2526                                 "Emulex %s %s %s",
2527                                 m.name, m.bus, m.function);
2528                 else
2529                         snprintf(descp, 255,
2530                                 "Emulex %s %d%s %s %s",
2531                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2532                                 m.bus, m.function);
2533         }
2534 }
2535
2536 /**
2537  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2538  * @phba: pointer to lpfc hba data structure.
2539  * @pring: pointer to a IOCB ring.
2540  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2541  *
2542  * This routine posts a given number of IOCBs with the associated DMA buffer
2543  * descriptors specified by the cnt argument to the given IOCB ring.
2544  *
2545  * Return codes
2546  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2547  **/
2548 int
2549 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2550 {
2551         IOCB_t *icmd;
2552         struct lpfc_iocbq *iocb;
2553         struct lpfc_dmabuf *mp1, *mp2;
2554
2555         cnt += pring->missbufcnt;
2556
2557         /* While there are buffers to post */
2558         while (cnt > 0) {
2559                 /* Allocate buffer for  command iocb */
2560                 iocb = lpfc_sli_get_iocbq(phba);
2561                 if (iocb == NULL) {
2562                         pring->missbufcnt = cnt;
2563                         return cnt;
2564                 }
2565                 icmd = &iocb->iocb;
2566
2567                 /* 2 buffers can be posted per command */
2568                 /* Allocate buffer to post */
2569                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2570                 if (mp1)
2571                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2572                 if (!mp1 || !mp1->virt) {
2573                         kfree(mp1);
2574                         lpfc_sli_release_iocbq(phba, iocb);
2575                         pring->missbufcnt = cnt;
2576                         return cnt;
2577                 }
2578
2579                 INIT_LIST_HEAD(&mp1->list);
2580                 /* Allocate buffer to post */
2581                 if (cnt > 1) {
2582                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2583                         if (mp2)
2584                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2585                                                             &mp2->phys);
2586                         if (!mp2 || !mp2->virt) {
2587                                 kfree(mp2);
2588                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2589                                 kfree(mp1);
2590                                 lpfc_sli_release_iocbq(phba, iocb);
2591                                 pring->missbufcnt = cnt;
2592                                 return cnt;
2593                         }
2594
2595                         INIT_LIST_HEAD(&mp2->list);
2596                 } else {
2597                         mp2 = NULL;
2598                 }
2599
2600                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2601                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2602                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2603                 icmd->ulpBdeCount = 1;
2604                 cnt--;
2605                 if (mp2) {
2606                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2607                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2608                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2609                         cnt--;
2610                         icmd->ulpBdeCount = 2;
2611                 }
2612
2613                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2614                 icmd->ulpLe = 1;
2615
2616                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2617                     IOCB_ERROR) {
2618                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2619                         kfree(mp1);
2620                         cnt++;
2621                         if (mp2) {
2622                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2623                                 kfree(mp2);
2624                                 cnt++;
2625                         }
2626                         lpfc_sli_release_iocbq(phba, iocb);
2627                         pring->missbufcnt = cnt;
2628                         return cnt;
2629                 }
2630                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2631                 if (mp2)
2632                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2633         }
2634         pring->missbufcnt = 0;
2635         return 0;
2636 }
2637
2638 /**
2639  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2640  * @phba: pointer to lpfc hba data structure.
2641  *
2642  * This routine posts initial receive IOCB buffers to the ELS ring. The
2643  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2644  * set to 64 IOCBs. SLI3 only.
2645  *
2646  * Return codes
2647  *   0 - success (currently always success)
2648  **/
2649 static int
2650 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2651 {
2652         struct lpfc_sli *psli = &phba->sli;
2653
2654         /* Ring 0, ELS / CT buffers */
2655         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2656         /* Ring 2 - FCP no buffers needed */
2657
2658         return 0;
2659 }
2660
2661 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2662
2663 /**
2664  * lpfc_sha_init - Set up initial array of hash table entries
2665  * @HashResultPointer: pointer to an array as hash table.
2666  *
2667  * This routine sets up the initial values to the array of hash table entries
2668  * for the LC HBAs.
2669  **/
2670 static void
2671 lpfc_sha_init(uint32_t * HashResultPointer)
2672 {
2673         HashResultPointer[0] = 0x67452301;
2674         HashResultPointer[1] = 0xEFCDAB89;
2675         HashResultPointer[2] = 0x98BADCFE;
2676         HashResultPointer[3] = 0x10325476;
2677         HashResultPointer[4] = 0xC3D2E1F0;
2678 }
2679
2680 /**
2681  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2682  * @HashResultPointer: pointer to an initial/result hash table.
2683  * @HashWorkingPointer: pointer to an working hash table.
2684  *
2685  * This routine iterates an initial hash table pointed by @HashResultPointer
2686  * with the values from the working hash table pointeed by @HashWorkingPointer.
2687  * The results are putting back to the initial hash table, returned through
2688  * the @HashResultPointer as the result hash table.
2689  **/
2690 static void
2691 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2692 {
2693         int t;
2694         uint32_t TEMP;
2695         uint32_t A, B, C, D, E;
2696         t = 16;
2697         do {
2698                 HashWorkingPointer[t] =
2699                     S(1,
2700                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2701                                                                      8] ^
2702                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2703         } while (++t <= 79);
2704         t = 0;
2705         A = HashResultPointer[0];
2706         B = HashResultPointer[1];
2707         C = HashResultPointer[2];
2708         D = HashResultPointer[3];
2709         E = HashResultPointer[4];
2710
2711         do {
2712                 if (t < 20) {
2713                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2714                 } else if (t < 40) {
2715                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2716                 } else if (t < 60) {
2717                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2718                 } else {
2719                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2720                 }
2721                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2722                 E = D;
2723                 D = C;
2724                 C = S(30, B);
2725                 B = A;
2726                 A = TEMP;
2727         } while (++t <= 79);
2728
2729         HashResultPointer[0] += A;
2730         HashResultPointer[1] += B;
2731         HashResultPointer[2] += C;
2732         HashResultPointer[3] += D;
2733         HashResultPointer[4] += E;
2734
2735 }
2736
2737 /**
2738  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2739  * @RandomChallenge: pointer to the entry of host challenge random number array.
2740  * @HashWorking: pointer to the entry of the working hash array.
2741  *
2742  * This routine calculates the working hash array referred by @HashWorking
2743  * from the challenge random numbers associated with the host, referred by
2744  * @RandomChallenge. The result is put into the entry of the working hash
2745  * array and returned by reference through @HashWorking.
2746  **/
2747 static void
2748 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2749 {
2750         *HashWorking = (*RandomChallenge ^ *HashWorking);
2751 }
2752
2753 /**
2754  * lpfc_hba_init - Perform special handling for LC HBA initialization
2755  * @phba: pointer to lpfc hba data structure.
2756  * @hbainit: pointer to an array of unsigned 32-bit integers.
2757  *
2758  * This routine performs the special handling for LC HBA initialization.
2759  **/
2760 void
2761 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2762 {
2763         int t;
2764         uint32_t *HashWorking;
2765         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2766
2767         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2768         if (!HashWorking)
2769                 return;
2770
2771         HashWorking[0] = HashWorking[78] = *pwwnn++;
2772         HashWorking[1] = HashWorking[79] = *pwwnn;
2773
2774         for (t = 0; t < 7; t++)
2775                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2776
2777         lpfc_sha_init(hbainit);
2778         lpfc_sha_iterate(hbainit, HashWorking);
2779         kfree(HashWorking);
2780 }
2781
2782 /**
2783  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2784  * @vport: pointer to a virtual N_Port data structure.
2785  *
2786  * This routine performs the necessary cleanups before deleting the @vport.
2787  * It invokes the discovery state machine to perform necessary state
2788  * transitions and to release the ndlps associated with the @vport. Note,
2789  * the physical port is treated as @vport 0.
2790  **/
2791 void
2792 lpfc_cleanup(struct lpfc_vport *vport)
2793 {
2794         struct lpfc_hba   *phba = vport->phba;
2795         struct lpfc_nodelist *ndlp, *next_ndlp;
2796         int i = 0;
2797
2798         if (phba->link_state > LPFC_LINK_DOWN)
2799                 lpfc_port_link_failure(vport);
2800
2801         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2802                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2803                         ndlp = lpfc_enable_node(vport, ndlp,
2804                                                 NLP_STE_UNUSED_NODE);
2805                         if (!ndlp)
2806                                 continue;
2807                         spin_lock_irq(&phba->ndlp_lock);
2808                         NLP_SET_FREE_REQ(ndlp);
2809                         spin_unlock_irq(&phba->ndlp_lock);
2810                         /* Trigger the release of the ndlp memory */
2811                         lpfc_nlp_put(ndlp);
2812                         continue;
2813                 }
2814                 spin_lock_irq(&phba->ndlp_lock);
2815                 if (NLP_CHK_FREE_REQ(ndlp)) {
2816                         /* The ndlp should not be in memory free mode already */
2817                         spin_unlock_irq(&phba->ndlp_lock);
2818                         continue;
2819                 } else
2820                         /* Indicate request for freeing ndlp memory */
2821                         NLP_SET_FREE_REQ(ndlp);
2822                 spin_unlock_irq(&phba->ndlp_lock);
2823
2824                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2825                     ndlp->nlp_DID == Fabric_DID) {
2826                         /* Just free up ndlp with Fabric_DID for vports */
2827                         lpfc_nlp_put(ndlp);
2828                         continue;
2829                 }
2830
2831                 /* take care of nodes in unused state before the state
2832                  * machine taking action.
2833                  */
2834                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2835                         lpfc_nlp_put(ndlp);
2836                         continue;
2837                 }
2838
2839                 if (ndlp->nlp_type & NLP_FABRIC)
2840                         lpfc_disc_state_machine(vport, ndlp, NULL,
2841                                         NLP_EVT_DEVICE_RECOVERY);
2842
2843                 lpfc_disc_state_machine(vport, ndlp, NULL,
2844                                              NLP_EVT_DEVICE_RM);
2845         }
2846
2847         /* At this point, ALL ndlp's should be gone
2848          * because of the previous NLP_EVT_DEVICE_RM.
2849          * Lets wait for this to happen, if needed.
2850          */
2851         while (!list_empty(&vport->fc_nodes)) {
2852                 if (i++ > 3000) {
2853                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2854                                 "0233 Nodelist not empty\n");
2855                         list_for_each_entry_safe(ndlp, next_ndlp,
2856                                                 &vport->fc_nodes, nlp_listp) {
2857                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2858                                                 LOG_NODE,
2859                                                 "0282 did:x%x ndlp:x%p "
2860                                                 "usgmap:x%x refcnt:%d\n",
2861                                                 ndlp->nlp_DID, (void *)ndlp,
2862                                                 ndlp->nlp_usg_map,
2863                                                 kref_read(&ndlp->kref));
2864                         }
2865                         break;
2866                 }
2867
2868                 /* Wait for any activity on ndlps to settle */
2869                 msleep(10);
2870         }
2871         lpfc_cleanup_vports_rrqs(vport, NULL);
2872 }
2873
2874 /**
2875  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2876  * @vport: pointer to a virtual N_Port data structure.
2877  *
2878  * This routine stops all the timers associated with a @vport. This function
2879  * is invoked before disabling or deleting a @vport. Note that the physical
2880  * port is treated as @vport 0.
2881  **/
2882 void
2883 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2884 {
2885         del_timer_sync(&vport->els_tmofunc);
2886         del_timer_sync(&vport->delayed_disc_tmo);
2887         lpfc_can_disctmo(vport);
2888         return;
2889 }
2890
2891 /**
2892  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2893  * @phba: pointer to lpfc hba data structure.
2894  *
2895  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2896  * caller of this routine should already hold the host lock.
2897  **/
2898 void
2899 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2900 {
2901         /* Clear pending FCF rediscovery wait flag */
2902         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2903
2904         /* Now, try to stop the timer */
2905         del_timer(&phba->fcf.redisc_wait);
2906 }
2907
2908 /**
2909  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2910  * @phba: pointer to lpfc hba data structure.
2911  *
2912  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2913  * checks whether the FCF rediscovery wait timer is pending with the host
2914  * lock held before proceeding with disabling the timer and clearing the
2915  * wait timer pendig flag.
2916  **/
2917 void
2918 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2919 {
2920         spin_lock_irq(&phba->hbalock);
2921         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2922                 /* FCF rediscovery timer already fired or stopped */
2923                 spin_unlock_irq(&phba->hbalock);
2924                 return;
2925         }
2926         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2927         /* Clear failover in progress flags */
2928         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2929         spin_unlock_irq(&phba->hbalock);
2930 }
2931
2932 /**
2933  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2934  * @phba: pointer to lpfc hba data structure.
2935  *
2936  * This routine stops all the timers associated with a HBA. This function is
2937  * invoked before either putting a HBA offline or unloading the driver.
2938  **/
2939 void
2940 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2941 {
2942         if (phba->pport)
2943                 lpfc_stop_vport_timers(phba->pport);
2944         cancel_delayed_work_sync(&phba->eq_delay_work);
2945         del_timer_sync(&phba->sli.mbox_tmo);
2946         del_timer_sync(&phba->fabric_block_timer);
2947         del_timer_sync(&phba->eratt_poll);
2948         del_timer_sync(&phba->hb_tmofunc);
2949         if (phba->sli_rev == LPFC_SLI_REV4) {
2950                 del_timer_sync(&phba->rrq_tmr);
2951                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2952         }
2953         phba->hb_outstanding = 0;
2954
2955         switch (phba->pci_dev_grp) {
2956         case LPFC_PCI_DEV_LP:
2957                 /* Stop any LightPulse device specific driver timers */
2958                 del_timer_sync(&phba->fcp_poll_timer);
2959                 break;
2960         case LPFC_PCI_DEV_OC:
2961                 /* Stop any OneConnect device sepcific driver timers */
2962                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2963                 break;
2964         default:
2965                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2966                                 "0297 Invalid device group (x%x)\n",
2967                                 phba->pci_dev_grp);
2968                 break;
2969         }
2970         return;
2971 }
2972
2973 /**
2974  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2975  * @phba: pointer to lpfc hba data structure.
2976  *
2977  * This routine marks a HBA's management interface as blocked. Once the HBA's
2978  * management interface is marked as blocked, all the user space access to
2979  * the HBA, whether they are from sysfs interface or libdfc interface will
2980  * all be blocked. The HBA is set to block the management interface when the
2981  * driver prepares the HBA interface for online or offline.
2982  **/
2983 static void
2984 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2985 {
2986         unsigned long iflag;
2987         uint8_t actcmd = MBX_HEARTBEAT;
2988         unsigned long timeout;
2989
2990         spin_lock_irqsave(&phba->hbalock, iflag);
2991         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2992         spin_unlock_irqrestore(&phba->hbalock, iflag);
2993         if (mbx_action == LPFC_MBX_NO_WAIT)
2994                 return;
2995         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2996         spin_lock_irqsave(&phba->hbalock, iflag);
2997         if (phba->sli.mbox_active) {
2998                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2999                 /* Determine how long we might wait for the active mailbox
3000                  * command to be gracefully completed by firmware.
3001                  */
3002                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3003                                 phba->sli.mbox_active) * 1000) + jiffies;
3004         }
3005         spin_unlock_irqrestore(&phba->hbalock, iflag);
3006
3007         /* Wait for the outstnading mailbox command to complete */
3008         while (phba->sli.mbox_active) {
3009                 /* Check active mailbox complete status every 2ms */
3010                 msleep(2);
3011                 if (time_after(jiffies, timeout)) {
3012                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3013                                 "2813 Mgmt IO is Blocked %x "
3014                                 "- mbox cmd %x still active\n",
3015                                 phba->sli.sli_flag, actcmd);
3016                         break;
3017                 }
3018         }
3019 }
3020
3021 /**
3022  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3023  * @phba: pointer to lpfc hba data structure.
3024  *
3025  * Allocate RPIs for all active remote nodes. This is needed whenever
3026  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3027  * is to fixup the temporary rpi assignments.
3028  **/
3029 void
3030 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3031 {
3032         struct lpfc_nodelist  *ndlp, *next_ndlp;
3033         struct lpfc_vport **vports;
3034         int i, rpi;
3035         unsigned long flags;
3036
3037         if (phba->sli_rev != LPFC_SLI_REV4)
3038                 return;
3039
3040         vports = lpfc_create_vport_work_array(phba);
3041         if (vports == NULL)
3042                 return;
3043
3044         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3045                 if (vports[i]->load_flag & FC_UNLOADING)
3046                         continue;
3047
3048                 list_for_each_entry_safe(ndlp, next_ndlp,
3049                                          &vports[i]->fc_nodes,
3050                                          nlp_listp) {
3051                         if (!NLP_CHK_NODE_ACT(ndlp))
3052                                 continue;
3053                         rpi = lpfc_sli4_alloc_rpi(phba);
3054                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3055                                 spin_lock_irqsave(&phba->ndlp_lock, flags);
3056                                 NLP_CLR_NODE_ACT(ndlp);
3057                                 spin_unlock_irqrestore(&phba->ndlp_lock, flags);
3058                                 continue;
3059                         }
3060                         ndlp->nlp_rpi = rpi;
3061                         lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE,
3062                                          "0009 rpi:%x DID:%x "
3063                                          "flg:%x map:%x %p\n", ndlp->nlp_rpi,
3064                                          ndlp->nlp_DID, ndlp->nlp_flag,
3065                                          ndlp->nlp_usg_map, ndlp);
3066                 }
3067         }
3068         lpfc_destroy_vport_work_array(phba, vports);
3069 }
3070
3071 /**
3072  * lpfc_create_expedite_pool - create expedite pool
3073  * @phba: pointer to lpfc hba data structure.
3074  *
3075  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3076  * to expedite pool. Mark them as expedite.
3077  **/
3078 void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3079 {
3080         struct lpfc_sli4_hdw_queue *qp;
3081         struct lpfc_io_buf *lpfc_ncmd;
3082         struct lpfc_io_buf *lpfc_ncmd_next;
3083         struct lpfc_epd_pool *epd_pool;
3084         unsigned long iflag;
3085
3086         epd_pool = &phba->epd_pool;
3087         qp = &phba->sli4_hba.hdwq[0];
3088
3089         spin_lock_init(&epd_pool->lock);
3090         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3091         spin_lock(&epd_pool->lock);
3092         INIT_LIST_HEAD(&epd_pool->list);
3093         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3094                                  &qp->lpfc_io_buf_list_put, list) {
3095                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3096                 lpfc_ncmd->expedite = true;
3097                 qp->put_io_bufs--;
3098                 epd_pool->count++;
3099                 if (epd_pool->count >= XRI_BATCH)
3100                         break;
3101         }
3102         spin_unlock(&epd_pool->lock);
3103         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3104 }
3105
3106 /**
3107  * lpfc_destroy_expedite_pool - destroy expedite pool
3108  * @phba: pointer to lpfc hba data structure.
3109  *
3110  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3111  * of HWQ 0. Clear the mark.
3112  **/
3113 void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3114 {
3115         struct lpfc_sli4_hdw_queue *qp;
3116         struct lpfc_io_buf *lpfc_ncmd;
3117         struct lpfc_io_buf *lpfc_ncmd_next;
3118         struct lpfc_epd_pool *epd_pool;
3119         unsigned long iflag;
3120
3121         epd_pool = &phba->epd_pool;
3122         qp = &phba->sli4_hba.hdwq[0];
3123
3124         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3125         spin_lock(&epd_pool->lock);
3126         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3127                                  &epd_pool->list, list) {
3128                 list_move_tail(&lpfc_ncmd->list,
3129                                &qp->lpfc_io_buf_list_put);
3130                 lpfc_ncmd->flags = false;
3131                 qp->put_io_bufs++;
3132                 epd_pool->count--;
3133         }
3134         spin_unlock(&epd_pool->lock);
3135         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3136 }
3137
3138 /**
3139  * lpfc_create_multixri_pools - create multi-XRI pools
3140  * @phba: pointer to lpfc hba data structure.
3141  *
3142  * This routine initialize public, private per HWQ. Then, move XRIs from
3143  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3144  * Initialized.
3145  **/
3146 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3147 {
3148         u32 i, j;
3149         u32 hwq_count;
3150         u32 count_per_hwq;
3151         struct lpfc_io_buf *lpfc_ncmd;
3152         struct lpfc_io_buf *lpfc_ncmd_next;
3153         unsigned long iflag;
3154         struct lpfc_sli4_hdw_queue *qp;
3155         struct lpfc_multixri_pool *multixri_pool;
3156         struct lpfc_pbl_pool *pbl_pool;
3157         struct lpfc_pvt_pool *pvt_pool;
3158
3159         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3160                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3161                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3162                         phba->sli4_hba.io_xri_cnt);
3163
3164         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3165                 lpfc_create_expedite_pool(phba);
3166
3167         hwq_count = phba->cfg_hdw_queue;
3168         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3169
3170         for (i = 0; i < hwq_count; i++) {
3171                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3172
3173                 if (!multixri_pool) {
3174                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3175                                         "1238 Failed to allocate memory for "
3176                                         "multixri_pool\n");
3177
3178                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3179                                 lpfc_destroy_expedite_pool(phba);
3180
3181                         j = 0;
3182                         while (j < i) {
3183                                 qp = &phba->sli4_hba.hdwq[j];
3184                                 kfree(qp->p_multixri_pool);
3185                                 j++;
3186                         }
3187                         phba->cfg_xri_rebalancing = 0;
3188                         return;
3189                 }
3190
3191                 qp = &phba->sli4_hba.hdwq[i];
3192                 qp->p_multixri_pool = multixri_pool;
3193
3194                 multixri_pool->xri_limit = count_per_hwq;
3195                 multixri_pool->rrb_next_hwqid = i;
3196
3197                 /* Deal with public free xri pool */
3198                 pbl_pool = &multixri_pool->pbl_pool;
3199                 spin_lock_init(&pbl_pool->lock);
3200                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3201                 spin_lock(&pbl_pool->lock);
3202                 INIT_LIST_HEAD(&pbl_pool->list);
3203                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3204                                          &qp->lpfc_io_buf_list_put, list) {
3205                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3206                         qp->put_io_bufs--;
3207                         pbl_pool->count++;
3208                 }
3209                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3210                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3211                                 pbl_pool->count, i);
3212                 spin_unlock(&pbl_pool->lock);
3213                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3214
3215                 /* Deal with private free xri pool */
3216                 pvt_pool = &multixri_pool->pvt_pool;
3217                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3218                 pvt_pool->low_watermark = XRI_BATCH;
3219                 spin_lock_init(&pvt_pool->lock);
3220                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3221                 INIT_LIST_HEAD(&pvt_pool->list);
3222                 pvt_pool->count = 0;
3223                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3224         }
3225 }
3226
3227 /**
3228  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3229  * @phba: pointer to lpfc hba data structure.
3230  *
3231  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3232  **/
3233 void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3234 {
3235         u32 i;
3236         u32 hwq_count;
3237         struct lpfc_io_buf *lpfc_ncmd;
3238         struct lpfc_io_buf *lpfc_ncmd_next;
3239         unsigned long iflag;
3240         struct lpfc_sli4_hdw_queue *qp;
3241         struct lpfc_multixri_pool *multixri_pool;
3242         struct lpfc_pbl_pool *pbl_pool;
3243         struct lpfc_pvt_pool *pvt_pool;
3244
3245         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3246                 lpfc_destroy_expedite_pool(phba);
3247
3248         hwq_count = phba->cfg_hdw_queue;
3249
3250         for (i = 0; i < hwq_count; i++) {
3251                 qp = &phba->sli4_hba.hdwq[i];
3252                 multixri_pool = qp->p_multixri_pool;
3253                 if (!multixri_pool)
3254                         continue;
3255
3256                 qp->p_multixri_pool = NULL;
3257
3258                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3259
3260                 /* Deal with public free xri pool */
3261                 pbl_pool = &multixri_pool->pbl_pool;
3262                 spin_lock(&pbl_pool->lock);
3263
3264                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3265                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3266                                 pbl_pool->count, i);
3267
3268                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3269                                          &pbl_pool->list, list) {
3270                         list_move_tail(&lpfc_ncmd->list,
3271                                        &qp->lpfc_io_buf_list_put);
3272                         qp->put_io_bufs++;
3273                         pbl_pool->count--;
3274                 }
3275
3276                 INIT_LIST_HEAD(&pbl_pool->list);
3277                 pbl_pool->count = 0;
3278
3279                 spin_unlock(&pbl_pool->lock);
3280
3281                 /* Deal with private free xri pool */
3282                 pvt_pool = &multixri_pool->pvt_pool;
3283                 spin_lock(&pvt_pool->lock);
3284
3285                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3286                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3287                                 pvt_pool->count, i);
3288
3289                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3290                                          &pvt_pool->list, list) {
3291                         list_move_tail(&lpfc_ncmd->list,
3292                                        &qp->lpfc_io_buf_list_put);
3293                         qp->put_io_bufs++;
3294                         pvt_pool->count--;
3295                 }
3296
3297                 INIT_LIST_HEAD(&pvt_pool->list);
3298                 pvt_pool->count = 0;
3299
3300                 spin_unlock(&pvt_pool->lock);
3301                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3302
3303                 kfree(multixri_pool);
3304         }
3305 }
3306
3307 /**
3308  * lpfc_online - Initialize and bring a HBA online
3309  * @phba: pointer to lpfc hba data structure.
3310  *
3311  * This routine initializes the HBA and brings a HBA online. During this
3312  * process, the management interface is blocked to prevent user space access
3313  * to the HBA interfering with the driver initialization.
3314  *
3315  * Return codes
3316  *   0 - successful
3317  *   1 - failed
3318  **/
3319 int
3320 lpfc_online(struct lpfc_hba *phba)
3321 {
3322         struct lpfc_vport *vport;
3323         struct lpfc_vport **vports;
3324         int i, error = 0;
3325         bool vpis_cleared = false;
3326
3327         if (!phba)
3328                 return 0;
3329         vport = phba->pport;
3330
3331         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3332                 return 0;
3333
3334         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3335                         "0458 Bring Adapter online\n");
3336
3337         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3338
3339         if (phba->sli_rev == LPFC_SLI_REV4) {
3340                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3341                         lpfc_unblock_mgmt_io(phba);
3342                         return 1;
3343                 }
3344                 spin_lock_irq(&phba->hbalock);
3345                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3346                         vpis_cleared = true;
3347                 spin_unlock_irq(&phba->hbalock);
3348
3349                 /* Reestablish the local initiator port.
3350                  * The offline process destroyed the previous lport.
3351                  */
3352                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3353                                 !phba->nvmet_support) {
3354                         error = lpfc_nvme_create_localport(phba->pport);
3355                         if (error)
3356                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3357                                         "6132 NVME restore reg failed "
3358                                         "on nvmei error x%x\n", error);
3359                 }
3360         } else {
3361                 lpfc_sli_queue_init(phba);
3362                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3363                         lpfc_unblock_mgmt_io(phba);
3364                         return 1;
3365                 }
3366         }
3367
3368         vports = lpfc_create_vport_work_array(phba);
3369         if (vports != NULL) {
3370                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3371                         struct Scsi_Host *shost;
3372                         shost = lpfc_shost_from_vport(vports[i]);
3373                         spin_lock_irq(shost->host_lock);
3374                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3375                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3376                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3377                         if (phba->sli_rev == LPFC_SLI_REV4) {
3378                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3379                                 if ((vpis_cleared) &&
3380                                     (vports[i]->port_type !=
3381                                         LPFC_PHYSICAL_PORT))
3382                                         vports[i]->vpi = 0;
3383                         }
3384                         spin_unlock_irq(shost->host_lock);
3385                 }
3386         }
3387         lpfc_destroy_vport_work_array(phba, vports);
3388
3389         if (phba->cfg_xri_rebalancing)
3390                 lpfc_create_multixri_pools(phba);
3391
3392         lpfc_unblock_mgmt_io(phba);
3393         return 0;
3394 }
3395
3396 /**
3397  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3398  * @phba: pointer to lpfc hba data structure.
3399  *
3400  * This routine marks a HBA's management interface as not blocked. Once the
3401  * HBA's management interface is marked as not blocked, all the user space
3402  * access to the HBA, whether they are from sysfs interface or libdfc
3403  * interface will be allowed. The HBA is set to block the management interface
3404  * when the driver prepares the HBA interface for online or offline and then
3405  * set to unblock the management interface afterwards.
3406  **/
3407 void
3408 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3409 {
3410         unsigned long iflag;
3411
3412         spin_lock_irqsave(&phba->hbalock, iflag);
3413         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3414         spin_unlock_irqrestore(&phba->hbalock, iflag);
3415 }
3416
3417 /**
3418  * lpfc_offline_prep - Prepare a HBA to be brought offline
3419  * @phba: pointer to lpfc hba data structure.
3420  *
3421  * This routine is invoked to prepare a HBA to be brought offline. It performs
3422  * unregistration login to all the nodes on all vports and flushes the mailbox
3423  * queue to make it ready to be brought offline.
3424  **/
3425 void
3426 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3427 {
3428         struct lpfc_vport *vport = phba->pport;
3429         struct lpfc_nodelist  *ndlp, *next_ndlp;
3430         struct lpfc_vport **vports;
3431         struct Scsi_Host *shost;
3432         int i;
3433
3434         if (vport->fc_flag & FC_OFFLINE_MODE)
3435                 return;
3436
3437         lpfc_block_mgmt_io(phba, mbx_action);
3438
3439         lpfc_linkdown(phba);
3440
3441         /* Issue an unreg_login to all nodes on all vports */
3442         vports = lpfc_create_vport_work_array(phba);
3443         if (vports != NULL) {
3444                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3445                         if (vports[i]->load_flag & FC_UNLOADING)
3446                                 continue;
3447                         shost = lpfc_shost_from_vport(vports[i]);
3448                         spin_lock_irq(shost->host_lock);
3449                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3450                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3451                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3452                         spin_unlock_irq(shost->host_lock);
3453
3454                         shost = lpfc_shost_from_vport(vports[i]);
3455                         list_for_each_entry_safe(ndlp, next_ndlp,
3456                                                  &vports[i]->fc_nodes,
3457                                                  nlp_listp) {
3458                                 if (!NLP_CHK_NODE_ACT(ndlp))
3459                                         continue;
3460                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3461                                         continue;
3462                                 if (ndlp->nlp_type & NLP_FABRIC) {
3463                                         lpfc_disc_state_machine(vports[i], ndlp,
3464                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3465                                         lpfc_disc_state_machine(vports[i], ndlp,
3466                                                 NULL, NLP_EVT_DEVICE_RM);
3467                                 }
3468                                 spin_lock_irq(shost->host_lock);
3469                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3470                                 spin_unlock_irq(shost->host_lock);
3471                                 /*
3472                                  * Whenever an SLI4 port goes offline, free the
3473                                  * RPI. Get a new RPI when the adapter port
3474                                  * comes back online.
3475                                  */
3476                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3477                                         lpfc_printf_vlog(ndlp->vport,
3478                                                          KERN_INFO, LOG_NODE,
3479                                                          "0011 lpfc_offline: "
3480                                                          "ndlp:x%p did %x "
3481                                                          "usgmap:x%x rpi:%x\n",
3482                                                          ndlp, ndlp->nlp_DID,
3483                                                          ndlp->nlp_usg_map,
3484                                                          ndlp->nlp_rpi);
3485
3486                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3487                                 }
3488                                 lpfc_unreg_rpi(vports[i], ndlp);
3489                         }
3490                 }
3491         }
3492         lpfc_destroy_vport_work_array(phba, vports);
3493
3494         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3495
3496         if (phba->wq)
3497                 flush_workqueue(phba->wq);
3498 }
3499
3500 /**
3501  * lpfc_offline - Bring a HBA offline
3502  * @phba: pointer to lpfc hba data structure.
3503  *
3504  * This routine actually brings a HBA offline. It stops all the timers
3505  * associated with the HBA, brings down the SLI layer, and eventually
3506  * marks the HBA as in offline state for the upper layer protocol.
3507  **/
3508 void
3509 lpfc_offline(struct lpfc_hba *phba)
3510 {
3511         struct Scsi_Host  *shost;
3512         struct lpfc_vport **vports;
3513         int i;
3514
3515         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3516                 return;
3517
3518         /* stop port and all timers associated with this hba */
3519         lpfc_stop_port(phba);
3520
3521         /* Tear down the local and target port registrations.  The
3522          * nvme transports need to cleanup.
3523          */
3524         lpfc_nvmet_destroy_targetport(phba);
3525         lpfc_nvme_destroy_localport(phba->pport);
3526
3527         vports = lpfc_create_vport_work_array(phba);
3528         if (vports != NULL)
3529                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3530                         lpfc_stop_vport_timers(vports[i]);
3531         lpfc_destroy_vport_work_array(phba, vports);
3532         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3533                         "0460 Bring Adapter offline\n");
3534         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3535            now.  */
3536         lpfc_sli_hba_down(phba);
3537         spin_lock_irq(&phba->hbalock);
3538         phba->work_ha = 0;
3539         spin_unlock_irq(&phba->hbalock);
3540         vports = lpfc_create_vport_work_array(phba);
3541         if (vports != NULL)
3542                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3543                         shost = lpfc_shost_from_vport(vports[i]);
3544                         spin_lock_irq(shost->host_lock);
3545                         vports[i]->work_port_events = 0;
3546                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3547                         spin_unlock_irq(shost->host_lock);
3548                 }
3549         lpfc_destroy_vport_work_array(phba, vports);
3550
3551         if (phba->cfg_xri_rebalancing)
3552                 lpfc_destroy_multixri_pools(phba);
3553 }
3554
3555 /**
3556  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3557  * @phba: pointer to lpfc hba data structure.
3558  *
3559  * This routine is to free all the SCSI buffers and IOCBs from the driver
3560  * list back to kernel. It is called from lpfc_pci_remove_one to free
3561  * the internal resources before the device is removed from the system.
3562  **/
3563 static void
3564 lpfc_scsi_free(struct lpfc_hba *phba)
3565 {
3566         struct lpfc_io_buf *sb, *sb_next;
3567
3568         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3569                 return;
3570
3571         spin_lock_irq(&phba->hbalock);
3572
3573         /* Release all the lpfc_scsi_bufs maintained by this host. */
3574
3575         spin_lock(&phba->scsi_buf_list_put_lock);
3576         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3577                                  list) {
3578                 list_del(&sb->list);
3579                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3580                               sb->dma_handle);
3581                 kfree(sb);
3582                 phba->total_scsi_bufs--;
3583         }
3584         spin_unlock(&phba->scsi_buf_list_put_lock);
3585
3586         spin_lock(&phba->scsi_buf_list_get_lock);
3587         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3588                                  list) {
3589                 list_del(&sb->list);
3590                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3591                               sb->dma_handle);
3592                 kfree(sb);
3593                 phba->total_scsi_bufs--;
3594         }
3595         spin_unlock(&phba->scsi_buf_list_get_lock);
3596         spin_unlock_irq(&phba->hbalock);
3597 }
3598
3599 /**
3600  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3601  * @phba: pointer to lpfc hba data structure.
3602  *
3603  * This routine is to free all the IO buffers and IOCBs from the driver
3604  * list back to kernel. It is called from lpfc_pci_remove_one to free
3605  * the internal resources before the device is removed from the system.
3606  **/
3607 void
3608 lpfc_io_free(struct lpfc_hba *phba)
3609 {
3610         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3611         struct lpfc_sli4_hdw_queue *qp;
3612         int idx;
3613
3614         spin_lock_irq(&phba->hbalock);
3615
3616         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3617                 qp = &phba->sli4_hba.hdwq[idx];
3618                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3619                 spin_lock(&qp->io_buf_list_put_lock);
3620                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3621                                          &qp->lpfc_io_buf_list_put,
3622                                          list) {
3623                         list_del(&lpfc_ncmd->list);
3624                         qp->put_io_bufs--;
3625                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3626                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3627                         kfree(lpfc_ncmd);
3628                         qp->total_io_bufs--;
3629                 }
3630                 spin_unlock(&qp->io_buf_list_put_lock);
3631
3632                 spin_lock(&qp->io_buf_list_get_lock);
3633                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3634                                          &qp->lpfc_io_buf_list_get,
3635                                          list) {
3636                         list_del(&lpfc_ncmd->list);
3637                         qp->get_io_bufs--;
3638                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3639                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3640                         kfree(lpfc_ncmd);
3641                         qp->total_io_bufs--;
3642                 }
3643                 spin_unlock(&qp->io_buf_list_get_lock);
3644         }
3645
3646         spin_unlock_irq(&phba->hbalock);
3647 }
3648
3649 /**
3650  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3651  * @phba: pointer to lpfc hba data structure.
3652  *
3653  * This routine first calculates the sizes of the current els and allocated
3654  * scsi sgl lists, and then goes through all sgls to updates the physical
3655  * XRIs assigned due to port function reset. During port initialization, the
3656  * current els and allocated scsi sgl lists are 0s.
3657  *
3658  * Return codes
3659  *   0 - successful (for now, it always returns 0)
3660  **/
3661 int
3662 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3663 {
3664         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3665         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3666         LIST_HEAD(els_sgl_list);
3667         int rc;
3668
3669         /*
3670          * update on pci function's els xri-sgl list
3671          */
3672         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3673
3674         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3675                 /* els xri-sgl expanded */
3676                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3677                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3678                                 "3157 ELS xri-sgl count increased from "
3679                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3680                                 els_xri_cnt);
3681                 /* allocate the additional els sgls */
3682                 for (i = 0; i < xri_cnt; i++) {
3683                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3684                                              GFP_KERNEL);
3685                         if (sglq_entry == NULL) {
3686                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3687                                                 "2562 Failure to allocate an "
3688                                                 "ELS sgl entry:%d\n", i);
3689                                 rc = -ENOMEM;
3690                                 goto out_free_mem;
3691                         }
3692                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3693                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3694                                                            &sglq_entry->phys);
3695                         if (sglq_entry->virt == NULL) {
3696                                 kfree(sglq_entry);
3697                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3698                                                 "2563 Failure to allocate an "
3699                                                 "ELS mbuf:%d\n", i);
3700                                 rc = -ENOMEM;
3701                                 goto out_free_mem;
3702                         }
3703                         sglq_entry->sgl = sglq_entry->virt;
3704                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3705                         sglq_entry->state = SGL_FREED;
3706                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3707                 }
3708                 spin_lock_irq(&phba->hbalock);
3709                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3710                 list_splice_init(&els_sgl_list,
3711                                  &phba->sli4_hba.lpfc_els_sgl_list);
3712                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3713                 spin_unlock_irq(&phba->hbalock);
3714         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3715                 /* els xri-sgl shrinked */
3716                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3717                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3718                                 "3158 ELS xri-sgl count decreased from "
3719                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3720                                 els_xri_cnt);
3721                 spin_lock_irq(&phba->hbalock);
3722                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3723                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3724                                  &els_sgl_list);
3725                 /* release extra els sgls from list */
3726                 for (i = 0; i < xri_cnt; i++) {
3727                         list_remove_head(&els_sgl_list,
3728                                          sglq_entry, struct lpfc_sglq, list);
3729                         if (sglq_entry) {
3730                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3731                                                  sglq_entry->phys);
3732                                 kfree(sglq_entry);
3733                         }
3734                 }
3735                 list_splice_init(&els_sgl_list,
3736                                  &phba->sli4_hba.lpfc_els_sgl_list);
3737                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3738                 spin_unlock_irq(&phba->hbalock);
3739         } else
3740                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3741                                 "3163 ELS xri-sgl count unchanged: %d\n",
3742                                 els_xri_cnt);
3743         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3744
3745         /* update xris to els sgls on the list */
3746         sglq_entry = NULL;
3747         sglq_entry_next = NULL;
3748         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3749                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3750                 lxri = lpfc_sli4_next_xritag(phba);
3751                 if (lxri == NO_XRI) {
3752                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3753                                         "2400 Failed to allocate xri for "
3754                                         "ELS sgl\n");
3755                         rc = -ENOMEM;
3756                         goto out_free_mem;
3757                 }
3758                 sglq_entry->sli4_lxritag = lxri;
3759                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3760         }
3761         return 0;
3762
3763 out_free_mem:
3764         lpfc_free_els_sgl_list(phba);
3765         return rc;
3766 }
3767
3768 /**
3769  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
3770  * @phba: pointer to lpfc hba data structure.
3771  *
3772  * This routine first calculates the sizes of the current els and allocated
3773  * scsi sgl lists, and then goes through all sgls to updates the physical
3774  * XRIs assigned due to port function reset. During port initialization, the
3775  * current els and allocated scsi sgl lists are 0s.
3776  *
3777  * Return codes
3778  *   0 - successful (for now, it always returns 0)
3779  **/
3780 int
3781 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
3782 {
3783         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3784         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3785         uint16_t nvmet_xri_cnt;
3786         LIST_HEAD(nvmet_sgl_list);
3787         int rc;
3788
3789         /*
3790          * update on pci function's nvmet xri-sgl list
3791          */
3792         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3793
3794         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
3795         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
3796         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
3797                 /* els xri-sgl expanded */
3798                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
3799                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3800                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
3801                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
3802                 /* allocate the additional nvmet sgls */
3803                 for (i = 0; i < xri_cnt; i++) {
3804                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3805                                              GFP_KERNEL);
3806                         if (sglq_entry == NULL) {
3807                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3808                                                 "6303 Failure to allocate an "
3809                                                 "NVMET sgl entry:%d\n", i);
3810                                 rc = -ENOMEM;
3811                                 goto out_free_mem;
3812                         }
3813                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
3814                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
3815                                                            &sglq_entry->phys);
3816                         if (sglq_entry->virt == NULL) {
3817                                 kfree(sglq_entry);
3818                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3819                                                 "6304 Failure to allocate an "
3820                                                 "NVMET buf:%d\n", i);
3821                                 rc = -ENOMEM;
3822                                 goto out_free_mem;
3823                         }
3824                         sglq_entry->sgl = sglq_entry->virt;
3825                         memset(sglq_entry->sgl, 0,
3826                                phba->cfg_sg_dma_buf_size);
3827                         sglq_entry->state = SGL_FREED;
3828                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
3829                 }
3830                 spin_lock_irq(&phba->hbalock);
3831                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3832                 list_splice_init(&nvmet_sgl_list,
3833                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3834                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3835                 spin_unlock_irq(&phba->hbalock);
3836         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
3837                 /* nvmet xri-sgl shrunk */
3838                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
3839                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3840                                 "6305 NVMET xri-sgl count decreased from "
3841                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
3842                                 nvmet_xri_cnt);
3843                 spin_lock_irq(&phba->hbalock);
3844                 spin_lock(&phba->sli4_hba.sgl_list_lock);
3845                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
3846                                  &nvmet_sgl_list);
3847                 /* release extra nvmet sgls from list */
3848                 for (i = 0; i < xri_cnt; i++) {
3849                         list_remove_head(&nvmet_sgl_list,
3850                                          sglq_entry, struct lpfc_sglq, list);
3851                         if (sglq_entry) {
3852                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
3853                                                     sglq_entry->phys);
3854                                 kfree(sglq_entry);
3855                         }
3856                 }
3857                 list_splice_init(&nvmet_sgl_list,
3858                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
3859                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
3860                 spin_unlock_irq(&phba->hbalock);
3861         } else
3862                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3863                                 "6306 NVMET xri-sgl count unchanged: %d\n",
3864                                 nvmet_xri_cnt);
3865         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
3866
3867         /* update xris to nvmet sgls on the list */
3868         sglq_entry = NULL;
3869         sglq_entry_next = NULL;
3870         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3871                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
3872                 lxri = lpfc_sli4_next_xritag(phba);
3873                 if (lxri == NO_XRI) {
3874                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3875                                         "6307 Failed to allocate xri for "
3876                                         "NVMET sgl\n");
3877                         rc = -ENOMEM;
3878                         goto out_free_mem;
3879                 }
3880                 sglq_entry->sli4_lxritag = lxri;
3881                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3882         }
3883         return 0;
3884
3885 out_free_mem:
3886         lpfc_free_nvmet_sgl_list(phba);
3887         return rc;
3888 }
3889
3890 int
3891 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
3892 {
3893         LIST_HEAD(blist);
3894         struct lpfc_sli4_hdw_queue *qp;
3895         struct lpfc_io_buf *lpfc_cmd;
3896         struct lpfc_io_buf *iobufp, *prev_iobufp;
3897         int idx, cnt, xri, inserted;
3898
3899         cnt = 0;
3900         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3901                 qp = &phba->sli4_hba.hdwq[idx];
3902                 spin_lock_irq(&qp->io_buf_list_get_lock);
3903                 spin_lock(&qp->io_buf_list_put_lock);
3904
3905                 /* Take everything off the get and put lists */
3906                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
3907                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
3908                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
3909                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
3910                 cnt += qp->get_io_bufs + qp->put_io_bufs;
3911                 qp->get_io_bufs = 0;
3912                 qp->put_io_bufs = 0;
3913                 qp->total_io_bufs = 0;
3914                 spin_unlock(&qp->io_buf_list_put_lock);
3915                 spin_unlock_irq(&qp->io_buf_list_get_lock);
3916         }
3917
3918         /*
3919          * Take IO buffers off blist and put on cbuf sorted by XRI.
3920          * This is because POST_SGL takes a sequential range of XRIs
3921          * to post to the firmware.
3922          */
3923         for (idx = 0; idx < cnt; idx++) {
3924                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
3925                 if (!lpfc_cmd)
3926                         return cnt;
3927                 if (idx == 0) {
3928                         list_add_tail(&lpfc_cmd->list, cbuf);
3929                         continue;
3930                 }
3931                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
3932                 inserted = 0;
3933                 prev_iobufp = NULL;
3934                 list_for_each_entry(iobufp, cbuf, list) {
3935                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
3936                                 if (prev_iobufp)
3937                                         list_add(&lpfc_cmd->list,
3938                                                  &prev_iobufp->list);
3939                                 else
3940                                         list_add(&lpfc_cmd->list, cbuf);
3941                                 inserted = 1;
3942                                 break;
3943                         }
3944                         prev_iobufp = iobufp;
3945                 }
3946                 if (!inserted)
3947                         list_add_tail(&lpfc_cmd->list, cbuf);
3948         }
3949         return cnt;
3950 }
3951
3952 int
3953 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
3954 {
3955         struct lpfc_sli4_hdw_queue *qp;
3956         struct lpfc_io_buf *lpfc_cmd;
3957         int idx, cnt;
3958
3959         qp = phba->sli4_hba.hdwq;
3960         cnt = 0;
3961         while (!list_empty(cbuf)) {
3962                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3963                         list_remove_head(cbuf, lpfc_cmd,
3964                                          struct lpfc_io_buf, list);
3965                         if (!lpfc_cmd)
3966                                 return cnt;
3967                         cnt++;
3968                         qp = &phba->sli4_hba.hdwq[idx];
3969                         lpfc_cmd->hdwq_no = idx;
3970                         lpfc_cmd->hdwq = qp;
3971                         lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
3972                         lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
3973                         spin_lock(&qp->io_buf_list_put_lock);
3974                         list_add_tail(&lpfc_cmd->list,
3975                                       &qp->lpfc_io_buf_list_put);
3976                         qp->put_io_bufs++;
3977                         qp->total_io_bufs++;
3978                         spin_unlock(&qp->io_buf_list_put_lock);
3979                 }
3980         }
3981         return cnt;
3982 }
3983
3984 /**
3985  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
3986  * @phba: pointer to lpfc hba data structure.
3987  *
3988  * This routine first calculates the sizes of the current els and allocated
3989  * scsi sgl lists, and then goes through all sgls to updates the physical
3990  * XRIs assigned due to port function reset. During port initialization, the
3991  * current els and allocated scsi sgl lists are 0s.
3992  *
3993  * Return codes
3994  *   0 - successful (for now, it always returns 0)
3995  **/
3996 int
3997 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
3998 {
3999         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4000         uint16_t i, lxri, els_xri_cnt;
4001         uint16_t io_xri_cnt, io_xri_max;
4002         LIST_HEAD(io_sgl_list);
4003         int rc, cnt;
4004
4005         /*
4006          * update on pci function's allocated nvme xri-sgl list
4007          */
4008
4009         /* maximum number of xris available for nvme buffers */
4010         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4011         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4012         phba->sli4_hba.io_xri_max = io_xri_max;
4013
4014         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4015                         "6074 Current allocated XRI sgl count:%d, "
4016                         "maximum XRI count:%d\n",
4017                         phba->sli4_hba.io_xri_cnt,
4018                         phba->sli4_hba.io_xri_max);
4019
4020         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4021
4022         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4023                 /* max nvme xri shrunk below the allocated nvme buffers */
4024                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4025                                         phba->sli4_hba.io_xri_max;
4026                 /* release the extra allocated nvme buffers */
4027                 for (i = 0; i < io_xri_cnt; i++) {
4028                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4029                                          struct lpfc_io_buf, list);
4030                         if (lpfc_ncmd) {
4031                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4032                                               lpfc_ncmd->data,
4033                                               lpfc_ncmd->dma_handle);
4034                                 kfree(lpfc_ncmd);
4035                         }
4036                 }
4037                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4038         }
4039
4040         /* update xris associated to remaining allocated nvme buffers */
4041         lpfc_ncmd = NULL;
4042         lpfc_ncmd_next = NULL;
4043         phba->sli4_hba.io_xri_cnt = cnt;
4044         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4045                                  &io_sgl_list, list) {
4046                 lxri = lpfc_sli4_next_xritag(phba);
4047                 if (lxri == NO_XRI) {
4048                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4049                                         "6075 Failed to allocate xri for "
4050                                         "nvme buffer\n");
4051                         rc = -ENOMEM;
4052                         goto out_free_mem;
4053                 }
4054                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4055                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4056         }
4057         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4058         return 0;
4059
4060 out_free_mem:
4061         lpfc_io_free(phba);
4062         return rc;
4063 }
4064
4065 /**
4066  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4067  * @vport: The virtual port for which this call being executed.
4068  * @num_to_allocate: The requested number of buffers to allocate.
4069  *
4070  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4071  * the nvme buffer contains all the necessary information needed to initiate
4072  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4073  * them on a list, it post them to the port by using SGL block post.
4074  *
4075  * Return codes:
4076  *   int - number of IO buffers that were allocated and posted.
4077  *   0 = failure, less than num_to_alloc is a partial failure.
4078  **/
4079 int
4080 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4081 {
4082         struct lpfc_io_buf *lpfc_ncmd;
4083         struct lpfc_iocbq *pwqeq;
4084         uint16_t iotag, lxri = 0;
4085         int bcnt, num_posted;
4086         LIST_HEAD(prep_nblist);
4087         LIST_HEAD(post_nblist);
4088         LIST_HEAD(nvme_nblist);
4089
4090         /* Sanity check to ensure our sizing is right for both SCSI and NVME */
4091         if (sizeof(struct lpfc_io_buf) > LPFC_COMMON_IO_BUF_SZ) {
4092                 lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
4093                                 "6426 Common buffer size %zd exceeds %d\n",
4094                                 sizeof(struct lpfc_io_buf),
4095                                 LPFC_COMMON_IO_BUF_SZ);
4096                 return 0;
4097         }
4098
4099         phba->sli4_hba.io_xri_cnt = 0;
4100         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4101                 lpfc_ncmd = kzalloc(LPFC_COMMON_IO_BUF_SZ, GFP_KERNEL);
4102                 if (!lpfc_ncmd)
4103                         break;
4104                 /*
4105                  * Get memory from the pci pool to map the virt space to
4106                  * pci bus space for an I/O. The DMA buffer includes the
4107                  * number of SGE's necessary to support the sg_tablesize.
4108                  */
4109                 lpfc_ncmd->data = dma_pool_alloc(phba->lpfc_sg_dma_buf_pool,
4110                                 GFP_KERNEL,
4111                                 &lpfc_ncmd->dma_handle);
4112                 if (!lpfc_ncmd->data) {
4113                         kfree(lpfc_ncmd);
4114                         break;
4115                 }
4116                 memset(lpfc_ncmd->data, 0, phba->cfg_sg_dma_buf_size);
4117
4118                 /*
4119                  * 4K Page alignment is CRITICAL to BlockGuard, double check
4120                  * to be sure.
4121                  */
4122                 if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4123                     (((unsigned long)(lpfc_ncmd->data) &
4124                     (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4125                         lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
4126                                         "3369 Memory alignment err: addr=%lx\n",
4127                                         (unsigned long)lpfc_ncmd->data);
4128                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4129                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4130                         kfree(lpfc_ncmd);
4131                         break;
4132                 }
4133
4134                 lxri = lpfc_sli4_next_xritag(phba);
4135                 if (lxri == NO_XRI) {
4136                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4137                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4138                         kfree(lpfc_ncmd);
4139                         break;
4140                 }
4141                 pwqeq = &lpfc_ncmd->cur_iocbq;
4142
4143                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4144                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4145                 if (iotag == 0) {
4146                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4147                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4148                         kfree(lpfc_ncmd);
4149                         lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR,
4150                                         "6121 Failed to allocate IOTAG for"
4151                                         " XRI:0x%x\n", lxri);
4152                         lpfc_sli4_free_xri(phba, lxri);
4153                         break;
4154                 }
4155                 pwqeq->sli4_lxritag = lxri;
4156                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4157                 pwqeq->context1 = lpfc_ncmd;
4158
4159                 /* Initialize local short-hand pointers. */
4160                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4161                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4162                 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4163                 spin_lock_init(&lpfc_ncmd->buf_lock);
4164
4165                 /* add the nvme buffer to a post list */
4166                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4167                 phba->sli4_hba.io_xri_cnt++;
4168         }
4169         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4170                         "6114 Allocate %d out of %d requested new NVME "
4171                         "buffers\n", bcnt, num_to_alloc);
4172
4173         /* post the list of nvme buffer sgls to port if available */
4174         if (!list_empty(&post_nblist))
4175                 num_posted = lpfc_sli4_post_io_sgl_list(
4176                                 phba, &post_nblist, bcnt);
4177         else
4178                 num_posted = 0;
4179
4180         return num_posted;
4181 }
4182
4183 static uint64_t
4184 lpfc_get_wwpn(struct lpfc_hba *phba)
4185 {
4186         uint64_t wwn;
4187         int rc;
4188         LPFC_MBOXQ_t *mboxq;
4189         MAILBOX_t *mb;
4190
4191         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4192                                                 GFP_KERNEL);
4193         if (!mboxq)
4194                 return (uint64_t)-1;
4195
4196         /* First get WWN of HBA instance */
4197         lpfc_read_nv(phba, mboxq);
4198         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4199         if (rc != MBX_SUCCESS) {
4200                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4201                                 "6019 Mailbox failed , mbxCmd x%x "
4202                                 "READ_NV, mbxStatus x%x\n",
4203                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4204                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4205                 mempool_free(mboxq, phba->mbox_mem_pool);
4206                 return (uint64_t) -1;
4207         }
4208         mb = &mboxq->u.mb;
4209         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4210         /* wwn is WWPN of HBA instance */
4211         mempool_free(mboxq, phba->mbox_mem_pool);
4212         if (phba->sli_rev == LPFC_SLI_REV4)
4213                 return be64_to_cpu(wwn);
4214         else
4215                 return rol64(wwn, 32);
4216 }
4217
4218 /**
4219  * lpfc_create_port - Create an FC port
4220  * @phba: pointer to lpfc hba data structure.
4221  * @instance: a unique integer ID to this FC port.
4222  * @dev: pointer to the device data structure.
4223  *
4224  * This routine creates a FC port for the upper layer protocol. The FC port
4225  * can be created on top of either a physical port or a virtual port provided
4226  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4227  * and associates the FC port created before adding the shost into the SCSI
4228  * layer.
4229  *
4230  * Return codes
4231  *   @vport - pointer to the virtual N_Port data structure.
4232  *   NULL - port create failed.
4233  **/
4234 struct lpfc_vport *
4235 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4236 {
4237         struct lpfc_vport *vport;
4238         struct Scsi_Host  *shost = NULL;
4239         int error = 0;
4240         int i;
4241         uint64_t wwn;
4242         bool use_no_reset_hba = false;
4243         int rc;
4244
4245         if (lpfc_no_hba_reset_cnt) {
4246                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4247                     dev == &phba->pcidev->dev) {
4248                         /* Reset the port first */
4249                         lpfc_sli_brdrestart(phba);
4250                         rc = lpfc_sli_chipset_init(phba);
4251                         if (rc)
4252                                 return NULL;
4253                 }
4254                 wwn = lpfc_get_wwpn(phba);
4255         }
4256
4257         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4258                 if (wwn == lpfc_no_hba_reset[i]) {
4259                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4260                                         "6020 Setting use_no_reset port=%llx\n",
4261                                         wwn);
4262                         use_no_reset_hba = true;
4263                         break;
4264                 }
4265         }
4266
4267         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4268                 if (dev != &phba->pcidev->dev) {
4269                         shost = scsi_host_alloc(&lpfc_vport_template,
4270                                                 sizeof(struct lpfc_vport));
4271                 } else {
4272                         if (!use_no_reset_hba)
4273                                 shost = scsi_host_alloc(&lpfc_template,
4274                                                 sizeof(struct lpfc_vport));
4275                         else
4276                                 shost = scsi_host_alloc(&lpfc_template_no_hr,
4277                                                 sizeof(struct lpfc_vport));
4278                 }
4279         } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
4280                 shost = scsi_host_alloc(&lpfc_template_nvme,
4281                                         sizeof(struct lpfc_vport));
4282         }
4283         if (!shost)
4284                 goto out;
4285
4286         vport = (struct lpfc_vport *) shost->hostdata;
4287         vport->phba = phba;
4288         vport->load_flag |= FC_LOADING;
4289         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4290         vport->fc_rscn_flush = 0;
4291         lpfc_get_vport_cfgparam(vport);
4292
4293         /* Adjust value in vport */
4294         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4295
4296         shost->unique_id = instance;
4297         shost->max_id = LPFC_MAX_TARGET;
4298         shost->max_lun = vport->cfg_max_luns;
4299         shost->this_id = -1;
4300         shost->max_cmd_len = 16;
4301
4302         if (phba->sli_rev == LPFC_SLI_REV4) {
4303                 if (phba->cfg_fcp_io_sched == LPFC_FCP_SCHED_BY_HDWQ)
4304                         shost->nr_hw_queues = phba->cfg_hdw_queue;
4305                 else
4306                         shost->nr_hw_queues = phba->sli4_hba.num_present_cpu;
4307
4308                 shost->dma_boundary =
4309                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4310                 shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4311         } else
4312                 /* SLI-3 has a limited number of hardware queues (3),
4313                  * thus there is only one for FCP processing.
4314                  */
4315                 shost->nr_hw_queues = 1;
4316
4317         /*
4318          * Set initial can_queue value since 0 is no longer supported and
4319          * scsi_add_host will fail. This will be adjusted later based on the
4320          * max xri value determined in hba setup.
4321          */
4322         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4323         if (dev != &phba->pcidev->dev) {
4324                 shost->transportt = lpfc_vport_transport_template;
4325                 vport->port_type = LPFC_NPIV_PORT;
4326         } else {
4327                 shost->transportt = lpfc_transport_template;
4328                 vport->port_type = LPFC_PHYSICAL_PORT;
4329         }
4330
4331         /* Initialize all internally managed lists. */
4332         INIT_LIST_HEAD(&vport->fc_nodes);
4333         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4334         spin_lock_init(&vport->work_port_lock);
4335
4336         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4337
4338         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4339
4340         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4341
4342         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4343         if (error)
4344                 goto out_put_shost;
4345
4346         spin_lock_irq(&phba->port_list_lock);
4347         list_add_tail(&vport->listentry, &phba->port_list);
4348         spin_unlock_irq(&phba->port_list_lock);
4349         return vport;
4350
4351 out_put_shost:
4352         scsi_host_put(shost);
4353 out:
4354         return NULL;
4355 }
4356
4357 /**
4358  * destroy_port -  destroy an FC port
4359  * @vport: pointer to an lpfc virtual N_Port data structure.
4360  *
4361  * This routine destroys a FC port from the upper layer protocol. All the
4362  * resources associated with the port are released.
4363  **/
4364 void
4365 destroy_port(struct lpfc_vport *vport)
4366 {
4367         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4368         struct lpfc_hba  *phba = vport->phba;
4369
4370         lpfc_debugfs_terminate(vport);
4371         fc_remove_host(shost);
4372         scsi_remove_host(shost);
4373
4374         spin_lock_irq(&phba->port_list_lock);
4375         list_del_init(&vport->listentry);
4376         spin_unlock_irq(&phba->port_list_lock);
4377
4378         lpfc_cleanup(vport);
4379         return;
4380 }
4381
4382 /**
4383  * lpfc_get_instance - Get a unique integer ID
4384  *
4385  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4386  * uses the kernel idr facility to perform the task.
4387  *
4388  * Return codes:
4389  *   instance - a unique integer ID allocated as the new instance.
4390  *   -1 - lpfc get instance failed.
4391  **/
4392 int
4393 lpfc_get_instance(void)
4394 {
4395         int ret;
4396
4397         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4398         return ret < 0 ? -1 : ret;
4399 }
4400
4401 /**
4402  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4403  * @shost: pointer to SCSI host data structure.
4404  * @time: elapsed time of the scan in jiffies.
4405  *
4406  * This routine is called by the SCSI layer with a SCSI host to determine
4407  * whether the scan host is finished.
4408  *
4409  * Note: there is no scan_start function as adapter initialization will have
4410  * asynchronously kicked off the link initialization.
4411  *
4412  * Return codes
4413  *   0 - SCSI host scan is not over yet.
4414  *   1 - SCSI host scan is over.
4415  **/
4416 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4417 {
4418         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4419         struct lpfc_hba   *phba = vport->phba;
4420         int stat = 0;
4421
4422         spin_lock_irq(shost->host_lock);
4423
4424         if (vport->load_flag & FC_UNLOADING) {
4425                 stat = 1;
4426                 goto finished;
4427         }
4428         if (time >= msecs_to_jiffies(30 * 1000)) {
4429                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4430                                 "0461 Scanning longer than 30 "
4431                                 "seconds.  Continuing initialization\n");
4432                 stat = 1;
4433                 goto finished;
4434         }
4435         if (time >= msecs_to_jiffies(15 * 1000) &&
4436             phba->link_state <= LPFC_LINK_DOWN) {
4437                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4438                                 "0465 Link down longer than 15 "
4439                                 "seconds.  Continuing initialization\n");
4440                 stat = 1;
4441                 goto finished;
4442         }
4443
4444         if (vport->port_state != LPFC_VPORT_READY)
4445                 goto finished;
4446         if (vport->num_disc_nodes || vport->fc_prli_sent)
4447                 goto finished;
4448         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4449                 goto finished;
4450         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4451                 goto finished;
4452
4453         stat = 1;
4454
4455 finished:
4456         spin_unlock_irq(shost->host_lock);
4457         return stat;
4458 }
4459
4460 void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4461 {
4462         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4463         struct lpfc_hba   *phba = vport->phba;
4464
4465         fc_host_supported_speeds(shost) = 0;
4466         if (phba->lmt & LMT_128Gb)
4467                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4468         if (phba->lmt & LMT_64Gb)
4469                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4470         if (phba->lmt & LMT_32Gb)
4471                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4472         if (phba->lmt & LMT_16Gb)
4473                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4474         if (phba->lmt & LMT_10Gb)
4475                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4476         if (phba->lmt & LMT_8Gb)
4477                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4478         if (phba->lmt & LMT_4Gb)
4479                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4480         if (phba->lmt & LMT_2Gb)
4481                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4482         if (phba->lmt & LMT_1Gb)
4483                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4484 }
4485
4486 /**
4487  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4488  * @shost: pointer to SCSI host data structure.
4489  *
4490  * This routine initializes a given SCSI host attributes on a FC port. The
4491  * SCSI host can be either on top of a physical port or a virtual port.
4492  **/
4493 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4494 {
4495         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4496         struct lpfc_hba   *phba = vport->phba;
4497         /*
4498          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4499          */
4500
4501         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4502         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4503         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4504
4505         memset(fc_host_supported_fc4s(shost), 0,
4506                sizeof(fc_host_supported_fc4s(shost)));
4507         fc_host_supported_fc4s(shost)[2] = 1;
4508         fc_host_supported_fc4s(shost)[7] = 1;
4509
4510         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4511                                  sizeof fc_host_symbolic_name(shost));
4512
4513         lpfc_host_supported_speeds_set(shost);
4514
4515         fc_host_maxframe_size(shost) =
4516                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4517                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4518
4519         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4520
4521         /* This value is also unchanging */
4522         memset(fc_host_active_fc4s(shost), 0,
4523                sizeof(fc_host_active_fc4s(shost)));
4524         fc_host_active_fc4s(shost)[2] = 1;
4525         fc_host_active_fc4s(shost)[7] = 1;
4526
4527         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4528         spin_lock_irq(shost->host_lock);
4529         vport->load_flag &= ~FC_LOADING;
4530         spin_unlock_irq(shost->host_lock);
4531 }
4532
4533 /**
4534  * lpfc_stop_port_s3 - Stop SLI3 device port
4535  * @phba: pointer to lpfc hba data structure.
4536  *
4537  * This routine is invoked to stop an SLI3 device port, it stops the device
4538  * from generating interrupts and stops the device driver's timers for the
4539  * device.
4540  **/
4541 static void
4542 lpfc_stop_port_s3(struct lpfc_hba *phba)
4543 {
4544         /* Clear all interrupt enable conditions */
4545         writel(0, phba->HCregaddr);
4546         readl(phba->HCregaddr); /* flush */
4547         /* Clear all pending interrupts */
4548         writel(0xffffffff, phba->HAregaddr);
4549         readl(phba->HAregaddr); /* flush */
4550
4551         /* Reset some HBA SLI setup states */
4552         lpfc_stop_hba_timers(phba);
4553         phba->pport->work_port_events = 0;
4554 }
4555
4556 /**
4557  * lpfc_stop_port_s4 - Stop SLI4 device port
4558  * @phba: pointer to lpfc hba data structure.
4559  *
4560  * This routine is invoked to stop an SLI4 device port, it stops the device
4561  * from generating interrupts and stops the device driver's timers for the
4562  * device.
4563  **/
4564 static void
4565 lpfc_stop_port_s4(struct lpfc_hba *phba)
4566 {
4567         /* Reset some HBA SLI4 setup states */
4568         lpfc_stop_hba_timers(phba);
4569         if (phba->pport)
4570                 phba->pport->work_port_events = 0;
4571         phba->sli4_hba.intr_enable = 0;
4572 }
4573
4574 /**
4575  * lpfc_stop_port - Wrapper function for stopping hba port
4576  * @phba: Pointer to HBA context object.
4577  *
4578  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4579  * the API jump table function pointer from the lpfc_hba struct.
4580  **/
4581 void
4582 lpfc_stop_port(struct lpfc_hba *phba)
4583 {
4584         phba->lpfc_stop_port(phba);
4585
4586         if (phba->wq)
4587                 flush_workqueue(phba->wq);
4588 }
4589
4590 /**
4591  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4592  * @phba: Pointer to hba for which this call is being executed.
4593  *
4594  * This routine starts the timer waiting for the FCF rediscovery to complete.
4595  **/
4596 void
4597 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4598 {
4599         unsigned long fcf_redisc_wait_tmo =
4600                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4601         /* Start fcf rediscovery wait period timer */
4602         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4603         spin_lock_irq(&phba->hbalock);
4604         /* Allow action to new fcf asynchronous event */
4605         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4606         /* Mark the FCF rediscovery pending state */
4607         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4608         spin_unlock_irq(&phba->hbalock);
4609 }
4610
4611 /**
4612  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4613  * @ptr: Map to lpfc_hba data structure pointer.
4614  *
4615  * This routine is invoked when waiting for FCF table rediscover has been
4616  * timed out. If new FCF record(s) has (have) been discovered during the
4617  * wait period, a new FCF event shall be added to the FCOE async event
4618  * list, and then worker thread shall be waked up for processing from the
4619  * worker thread context.
4620  **/
4621 static void
4622 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4623 {
4624         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4625
4626         /* Don't send FCF rediscovery event if timer cancelled */
4627         spin_lock_irq(&phba->hbalock);
4628         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4629                 spin_unlock_irq(&phba->hbalock);
4630                 return;
4631         }
4632         /* Clear FCF rediscovery timer pending flag */
4633         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4634         /* FCF rediscovery event to worker thread */
4635         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4636         spin_unlock_irq(&phba->hbalock);
4637         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4638                         "2776 FCF rediscover quiescent timer expired\n");
4639         /* wake up worker thread */
4640         lpfc_worker_wake_up(phba);
4641 }
4642
4643 /**
4644  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
4645  * @phba: pointer to lpfc hba data structure.
4646  * @acqe_link: pointer to the async link completion queue entry.
4647  *
4648  * This routine is to parse the SLI4 link-attention link fault code.
4649  **/
4650 static void
4651 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
4652                            struct lpfc_acqe_link *acqe_link)
4653 {
4654         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
4655         case LPFC_ASYNC_LINK_FAULT_NONE:
4656         case LPFC_ASYNC_LINK_FAULT_LOCAL:
4657         case LPFC_ASYNC_LINK_FAULT_REMOTE:
4658         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
4659                 break;
4660         default:
4661                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4662                                 "0398 Unknown link fault code: x%x\n",
4663                                 bf_get(lpfc_acqe_link_fault, acqe_link));
4664                 break;
4665         }
4666 }
4667
4668 /**
4669  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
4670  * @phba: pointer to lpfc hba data structure.
4671  * @acqe_link: pointer to the async link completion queue entry.
4672  *
4673  * This routine is to parse the SLI4 link attention type and translate it
4674  * into the base driver's link attention type coding.
4675  *
4676  * Return: Link attention type in terms of base driver's coding.
4677  **/
4678 static uint8_t
4679 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
4680                           struct lpfc_acqe_link *acqe_link)
4681 {
4682         uint8_t att_type;
4683
4684         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
4685         case LPFC_ASYNC_LINK_STATUS_DOWN:
4686         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
4687                 att_type = LPFC_ATT_LINK_DOWN;
4688                 break;
4689         case LPFC_ASYNC_LINK_STATUS_UP:
4690                 /* Ignore physical link up events - wait for logical link up */
4691                 att_type = LPFC_ATT_RESERVED;
4692                 break;
4693         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
4694                 att_type = LPFC_ATT_LINK_UP;
4695                 break;
4696         default:
4697                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4698                                 "0399 Invalid link attention type: x%x\n",
4699                                 bf_get(lpfc_acqe_link_status, acqe_link));
4700                 att_type = LPFC_ATT_RESERVED;
4701                 break;
4702         }
4703         return att_type;
4704 }
4705
4706 /**
4707  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
4708  * @phba: pointer to lpfc hba data structure.
4709  *
4710  * This routine is to get an SLI3 FC port's link speed in Mbps.
4711  *
4712  * Return: link speed in terms of Mbps.
4713  **/
4714 uint32_t
4715 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
4716 {
4717         uint32_t link_speed;
4718
4719         if (!lpfc_is_link_up(phba))
4720                 return 0;
4721
4722         if (phba->sli_rev <= LPFC_SLI_REV3) {
4723                 switch (phba->fc_linkspeed) {
4724                 case LPFC_LINK_SPEED_1GHZ:
4725                         link_speed = 1000;
4726                         break;
4727                 case LPFC_LINK_SPEED_2GHZ:
4728                         link_speed = 2000;
4729                         break;
4730                 case LPFC_LINK_SPEED_4GHZ:
4731                         link_speed = 4000;
4732                         break;
4733                 case LPFC_LINK_SPEED_8GHZ:
4734                         link_speed = 8000;
4735                         break;
4736                 case LPFC_LINK_SPEED_10GHZ:
4737                         link_speed = 10000;
4738                         break;
4739                 case LPFC_LINK_SPEED_16GHZ:
4740                         link_speed = 16000;
4741                         break;
4742                 default:
4743                         link_speed = 0;
4744                 }
4745         } else {
4746                 if (phba->sli4_hba.link_state.logical_speed)
4747                         link_speed =
4748                               phba->sli4_hba.link_state.logical_speed;
4749                 else
4750                         link_speed = phba->sli4_hba.link_state.speed;
4751         }
4752         return link_speed;
4753 }
4754
4755 /**
4756  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
4757  * @phba: pointer to lpfc hba data structure.
4758  * @evt_code: asynchronous event code.
4759  * @speed_code: asynchronous event link speed code.
4760  *
4761  * This routine is to parse the giving SLI4 async event link speed code into
4762  * value of Mbps for the link speed.
4763  *
4764  * Return: link speed in terms of Mbps.
4765  **/
4766 static uint32_t
4767 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
4768                            uint8_t speed_code)
4769 {
4770         uint32_t port_speed;
4771
4772         switch (evt_code) {
4773         case LPFC_TRAILER_CODE_LINK:
4774                 switch (speed_code) {
4775                 case LPFC_ASYNC_LINK_SPEED_ZERO:
4776                         port_speed = 0;
4777                         break;
4778                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
4779                         port_speed = 10;
4780                         break;
4781                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
4782                         port_speed = 100;
4783                         break;
4784                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
4785                         port_speed = 1000;
4786                         break;
4787                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
4788                         port_speed = 10000;
4789                         break;
4790                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
4791                         port_speed = 20000;
4792                         break;
4793                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
4794                         port_speed = 25000;
4795                         break;
4796                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
4797                         port_speed = 40000;
4798                         break;
4799                 default:
4800                         port_speed = 0;
4801                 }
4802                 break;
4803         case LPFC_TRAILER_CODE_FC:
4804                 switch (speed_code) {
4805                 case LPFC_FC_LA_SPEED_UNKNOWN:
4806                         port_speed = 0;
4807                         break;
4808                 case LPFC_FC_LA_SPEED_1G:
4809                         port_speed = 1000;
4810                         break;
4811                 case LPFC_FC_LA_SPEED_2G:
4812                         port_speed = 2000;
4813                         break;
4814                 case LPFC_FC_LA_SPEED_4G:
4815                         port_speed = 4000;
4816                         break;
4817                 case LPFC_FC_LA_SPEED_8G:
4818                         port_speed = 8000;
4819                         break;
4820                 case LPFC_FC_LA_SPEED_10G:
4821                         port_speed = 10000;
4822                         break;
4823                 case LPFC_FC_LA_SPEED_16G:
4824                         port_speed = 16000;
4825                         break;
4826                 case LPFC_FC_LA_SPEED_32G:
4827                         port_speed = 32000;
4828                         break;
4829                 case LPFC_FC_LA_SPEED_64G:
4830                         port_speed = 64000;
4831                         break;
4832                 case LPFC_FC_LA_SPEED_128G:
4833                         port_speed = 128000;
4834                         break;
4835                 default:
4836                         port_speed = 0;
4837                 }
4838                 break;
4839         default:
4840                 port_speed = 0;
4841         }
4842         return port_speed;
4843 }
4844
4845 /**
4846  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
4847  * @phba: pointer to lpfc hba data structure.
4848  * @acqe_link: pointer to the async link completion queue entry.
4849  *
4850  * This routine is to handle the SLI4 asynchronous FCoE link event.
4851  **/
4852 static void
4853 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
4854                          struct lpfc_acqe_link *acqe_link)
4855 {
4856         struct lpfc_dmabuf *mp;
4857         LPFC_MBOXQ_t *pmb;
4858         MAILBOX_t *mb;
4859         struct lpfc_mbx_read_top *la;
4860         uint8_t att_type;
4861         int rc;
4862
4863         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
4864         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
4865                 return;
4866         phba->fcoe_eventtag = acqe_link->event_tag;
4867         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4868         if (!pmb) {
4869                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4870                                 "0395 The mboxq allocation failed\n");
4871                 return;
4872         }
4873         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4874         if (!mp) {
4875                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4876                                 "0396 The lpfc_dmabuf allocation failed\n");
4877                 goto out_free_pmb;
4878         }
4879         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4880         if (!mp->virt) {
4881                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4882                                 "0397 The mbuf allocation failed\n");
4883                 goto out_free_dmabuf;
4884         }
4885
4886         /* Cleanup any outstanding ELS commands */
4887         lpfc_els_flush_all_cmd(phba);
4888
4889         /* Block ELS IOCBs until we have done process link event */
4890         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
4891
4892         /* Update link event statistics */
4893         phba->sli.slistat.link_event++;
4894
4895         /* Create lpfc_handle_latt mailbox command from link ACQE */
4896         lpfc_read_topology(phba, pmb, mp);
4897         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4898         pmb->vport = phba->pport;
4899
4900         /* Keep the link status for extra SLI4 state machine reference */
4901         phba->sli4_hba.link_state.speed =
4902                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
4903                                 bf_get(lpfc_acqe_link_speed, acqe_link));
4904         phba->sli4_hba.link_state.duplex =
4905                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
4906         phba->sli4_hba.link_state.status =
4907                                 bf_get(lpfc_acqe_link_status, acqe_link);
4908         phba->sli4_hba.link_state.type =
4909                                 bf_get(lpfc_acqe_link_type, acqe_link);
4910         phba->sli4_hba.link_state.number =
4911                                 bf_get(lpfc_acqe_link_number, acqe_link);
4912         phba->sli4_hba.link_state.fault =
4913                                 bf_get(lpfc_acqe_link_fault, acqe_link);
4914         phba->sli4_hba.link_state.logical_speed =
4915                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
4916
4917         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4918                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
4919                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
4920                         "Logical speed:%dMbps Fault:%d\n",
4921                         phba->sli4_hba.link_state.speed,
4922                         phba->sli4_hba.link_state.topology,
4923                         phba->sli4_hba.link_state.status,
4924                         phba->sli4_hba.link_state.type,
4925                         phba->sli4_hba.link_state.number,
4926                         phba->sli4_hba.link_state.logical_speed,
4927                         phba->sli4_hba.link_state.fault);
4928         /*
4929          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
4930          * topology info. Note: Optional for non FC-AL ports.
4931          */
4932         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4933                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4934                 if (rc == MBX_NOT_FINISHED)
4935                         goto out_free_dmabuf;
4936                 return;
4937         }
4938         /*
4939          * For FCoE Mode: fill in all the topology information we need and call
4940          * the READ_TOPOLOGY completion routine to continue without actually
4941          * sending the READ_TOPOLOGY mailbox command to the port.
4942          */
4943         /* Initialize completion status */
4944         mb = &pmb->u.mb;
4945         mb->mbxStatus = MBX_SUCCESS;
4946
4947         /* Parse port fault information field */
4948         lpfc_sli4_parse_latt_fault(phba, acqe_link);
4949
4950         /* Parse and translate link attention fields */
4951         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4952         la->eventTag = acqe_link->event_tag;
4953         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4954         bf_set(lpfc_mbx_read_top_link_spd, la,
4955                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4956
4957         /* Fake the the following irrelvant fields */
4958         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4959         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4960         bf_set(lpfc_mbx_read_top_il, la, 0);
4961         bf_set(lpfc_mbx_read_top_pb, la, 0);
4962         bf_set(lpfc_mbx_read_top_fa, la, 0);
4963         bf_set(lpfc_mbx_read_top_mm, la, 0);
4964
4965         /* Invoke the lpfc_handle_latt mailbox command callback function */
4966         lpfc_mbx_cmpl_read_topology(phba, pmb);
4967
4968         return;
4969
4970 out_free_dmabuf:
4971         kfree(mp);
4972 out_free_pmb:
4973         mempool_free(pmb, phba->mbox_mem_pool);
4974 }
4975
4976 /**
4977  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
4978  * topology.
4979  * @phba: pointer to lpfc hba data structure.
4980  * @evt_code: asynchronous event code.
4981  * @speed_code: asynchronous event link speed code.
4982  *
4983  * This routine is to parse the giving SLI4 async event link speed code into
4984  * value of Read topology link speed.
4985  *
4986  * Return: link speed in terms of Read topology.
4987  **/
4988 static uint8_t
4989 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
4990 {
4991         uint8_t port_speed;
4992
4993         switch (speed_code) {
4994         case LPFC_FC_LA_SPEED_1G:
4995                 port_speed = LPFC_LINK_SPEED_1GHZ;
4996                 break;
4997         case LPFC_FC_LA_SPEED_2G:
4998                 port_speed = LPFC_LINK_SPEED_2GHZ;
4999                 break;
5000         case LPFC_FC_LA_SPEED_4G:
5001                 port_speed = LPFC_LINK_SPEED_4GHZ;
5002                 break;
5003         case LPFC_FC_LA_SPEED_8G:
5004                 port_speed = LPFC_LINK_SPEED_8GHZ;
5005                 break;
5006         case LPFC_FC_LA_SPEED_16G:
5007                 port_speed = LPFC_LINK_SPEED_16GHZ;
5008                 break;
5009         case LPFC_FC_LA_SPEED_32G:
5010                 port_speed = LPFC_LINK_SPEED_32GHZ;
5011                 break;
5012         case LPFC_FC_LA_SPEED_64G:
5013                 port_speed = LPFC_LINK_SPEED_64GHZ;
5014                 break;
5015         case LPFC_FC_LA_SPEED_128G:
5016                 port_speed = LPFC_LINK_SPEED_128GHZ;
5017                 break;
5018         case LPFC_FC_LA_SPEED_256G:
5019                 port_speed = LPFC_LINK_SPEED_256GHZ;
5020                 break;
5021         default:
5022                 port_speed = 0;
5023                 break;
5024         }
5025
5026         return port_speed;
5027 }
5028
5029 #define trunk_link_status(__idx)\
5030         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5031                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
5032                 "Link up" : "Link down") : "NA"
5033 /* Did port __idx reported an error */
5034 #define trunk_port_fault(__idx)\
5035         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
5036                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
5037
5038 static void
5039 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
5040                               struct lpfc_acqe_fc_la *acqe_fc)
5041 {
5042         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
5043         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
5044
5045         phba->sli4_hba.link_state.speed =
5046                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5047                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5048
5049         phba->sli4_hba.link_state.logical_speed =
5050                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
5051         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
5052         phba->fc_linkspeed =
5053                  lpfc_async_link_speed_to_read_top(
5054                                 phba,
5055                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5056
5057         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
5058                 phba->trunk_link.link0.state =
5059                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
5060                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5061                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
5062         }
5063         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
5064                 phba->trunk_link.link1.state =
5065                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
5066                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5067                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
5068         }
5069         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
5070                 phba->trunk_link.link2.state =
5071                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
5072                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5073                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
5074         }
5075         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
5076                 phba->trunk_link.link3.state =
5077                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
5078                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
5079                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
5080         }
5081
5082         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5083                         "2910 Async FC Trunking Event - Speed:%d\n"
5084                         "\tLogical speed:%d "
5085                         "port0: %s port1: %s port2: %s port3: %s\n",
5086                         phba->sli4_hba.link_state.speed,
5087                         phba->sli4_hba.link_state.logical_speed,
5088                         trunk_link_status(0), trunk_link_status(1),
5089                         trunk_link_status(2), trunk_link_status(3));
5090
5091         if (port_fault)
5092                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5093                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
5094                                 /*
5095                                  * SLI-4: We have only 0xA error codes
5096                                  * defined as of now. print an appropriate
5097                                  * message in case driver needs to be updated.
5098                                  */
5099                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
5100                                 "UNDEFINED. update driver." : trunk_errmsg[err],
5101                                 trunk_port_fault(0), trunk_port_fault(1),
5102                                 trunk_port_fault(2), trunk_port_fault(3));
5103 }
5104
5105
5106 /**
5107  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
5108  * @phba: pointer to lpfc hba data structure.
5109  * @acqe_fc: pointer to the async fc completion queue entry.
5110  *
5111  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
5112  * that the event was received and then issue a read_topology mailbox command so
5113  * that the rest of the driver will treat it the same as SLI3.
5114  **/
5115 static void
5116 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
5117 {
5118         struct lpfc_dmabuf *mp;
5119         LPFC_MBOXQ_t *pmb;
5120         MAILBOX_t *mb;
5121         struct lpfc_mbx_read_top *la;
5122         int rc;
5123
5124         if (bf_get(lpfc_trailer_type, acqe_fc) !=
5125             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
5126                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5127                                 "2895 Non FC link Event detected.(%d)\n",
5128                                 bf_get(lpfc_trailer_type, acqe_fc));
5129                 return;
5130         }
5131
5132         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
5133             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
5134                 lpfc_update_trunk_link_status(phba, acqe_fc);
5135                 return;
5136         }
5137
5138         /* Keep the link status for extra SLI4 state machine reference */
5139         phba->sli4_hba.link_state.speed =
5140                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
5141                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
5142         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
5143         phba->sli4_hba.link_state.topology =
5144                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
5145         phba->sli4_hba.link_state.status =
5146                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
5147         phba->sli4_hba.link_state.type =
5148                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
5149         phba->sli4_hba.link_state.number =
5150                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
5151         phba->sli4_hba.link_state.fault =
5152                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
5153         phba->sli4_hba.link_state.logical_speed =
5154                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
5155         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5156                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
5157                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
5158                         "%dMbps Fault:%d\n",
5159                         phba->sli4_hba.link_state.speed,
5160                         phba->sli4_hba.link_state.topology,
5161                         phba->sli4_hba.link_state.status,
5162                         phba->sli4_hba.link_state.type,
5163                         phba->sli4_hba.link_state.number,
5164                         phba->sli4_hba.link_state.logical_speed,
5165                         phba->sli4_hba.link_state.fault);
5166         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5167         if (!pmb) {
5168                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5169                                 "2897 The mboxq allocation failed\n");
5170                 return;
5171         }
5172         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5173         if (!mp) {
5174                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5175                                 "2898 The lpfc_dmabuf allocation failed\n");
5176                 goto out_free_pmb;
5177         }
5178         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5179         if (!mp->virt) {
5180                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5181                                 "2899 The mbuf allocation failed\n");
5182                 goto out_free_dmabuf;
5183         }
5184
5185         /* Cleanup any outstanding ELS commands */
5186         lpfc_els_flush_all_cmd(phba);
5187
5188         /* Block ELS IOCBs until we have done process link event */
5189         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5190
5191         /* Update link event statistics */
5192         phba->sli.slistat.link_event++;
5193
5194         /* Create lpfc_handle_latt mailbox command from link ACQE */
5195         lpfc_read_topology(phba, pmb, mp);
5196         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5197         pmb->vport = phba->pport;
5198
5199         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
5200                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
5201
5202                 switch (phba->sli4_hba.link_state.status) {
5203                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
5204                         phba->link_flag |= LS_MDS_LINK_DOWN;
5205                         break;
5206                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
5207                         phba->link_flag |= LS_MDS_LOOPBACK;
5208                         break;
5209                 default:
5210                         break;
5211                 }
5212
5213                 /* Initialize completion status */
5214                 mb = &pmb->u.mb;
5215                 mb->mbxStatus = MBX_SUCCESS;
5216
5217                 /* Parse port fault information field */
5218                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
5219
5220                 /* Parse and translate link attention fields */
5221                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
5222                 la->eventTag = acqe_fc->event_tag;
5223
5224                 if (phba->sli4_hba.link_state.status ==
5225                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
5226                         bf_set(lpfc_mbx_read_top_att_type, la,
5227                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
5228                 } else {
5229                         bf_set(lpfc_mbx_read_top_att_type, la,
5230                                LPFC_FC_LA_TYPE_LINK_DOWN);
5231                 }
5232                 /* Invoke the mailbox command callback function */
5233                 lpfc_mbx_cmpl_read_topology(phba, pmb);
5234
5235                 return;
5236         }
5237
5238         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5239         if (rc == MBX_NOT_FINISHED)
5240                 goto out_free_dmabuf;
5241         return;
5242
5243 out_free_dmabuf:
5244         kfree(mp);
5245 out_free_pmb:
5246         mempool_free(pmb, phba->mbox_mem_pool);
5247 }
5248
5249 /**
5250  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
5251  * @phba: pointer to lpfc hba data structure.
5252  * @acqe_fc: pointer to the async SLI completion queue entry.
5253  *
5254  * This routine is to handle the SLI4 asynchronous SLI events.
5255  **/
5256 static void
5257 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
5258 {
5259         char port_name;
5260         char message[128];
5261         uint8_t status;
5262         uint8_t evt_type;
5263         uint8_t operational = 0;
5264         struct temp_event temp_event_data;
5265         struct lpfc_acqe_misconfigured_event *misconfigured;
5266         struct Scsi_Host  *shost;
5267         struct lpfc_vport **vports;
5268         int rc, i;
5269
5270         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
5271
5272         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5273                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
5274                         "x%08x SLI Event Type:%d\n",
5275                         acqe_sli->event_data1, acqe_sli->event_data2,
5276                         evt_type);
5277
5278         port_name = phba->Port[0];
5279         if (port_name == 0x00)
5280                 port_name = '?'; /* get port name is empty */
5281
5282         switch (evt_type) {
5283         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
5284                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5285                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
5286                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5287
5288                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5289                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
5290                                 acqe_sli->event_data1, port_name);
5291
5292                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
5293                 shost = lpfc_shost_from_vport(phba->pport);
5294                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5295                                           sizeof(temp_event_data),
5296                                           (char *)&temp_event_data,
5297                                           SCSI_NL_VID_TYPE_PCI
5298                                           | PCI_VENDOR_ID_EMULEX);
5299                 break;
5300         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
5301                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
5302                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
5303                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
5304
5305                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5306                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
5307                                 acqe_sli->event_data1, port_name);
5308
5309                 shost = lpfc_shost_from_vport(phba->pport);
5310                 fc_host_post_vendor_event(shost, fc_get_event_number(),
5311                                           sizeof(temp_event_data),
5312                                           (char *)&temp_event_data,
5313                                           SCSI_NL_VID_TYPE_PCI
5314                                           | PCI_VENDOR_ID_EMULEX);
5315                 break;
5316         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
5317                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
5318                                         &acqe_sli->event_data1;
5319
5320                 /* fetch the status for this port */
5321                 switch (phba->sli4_hba.lnk_info.lnk_no) {
5322                 case LPFC_LINK_NUMBER_0:
5323                         status = bf_get(lpfc_sli_misconfigured_port0_state,
5324                                         &misconfigured->theEvent);
5325                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
5326                                         &misconfigured->theEvent);
5327                         break;
5328                 case LPFC_LINK_NUMBER_1:
5329                         status = bf_get(lpfc_sli_misconfigured_port1_state,
5330                                         &misconfigured->theEvent);
5331                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
5332                                         &misconfigured->theEvent);
5333                         break;
5334                 case LPFC_LINK_NUMBER_2:
5335                         status = bf_get(lpfc_sli_misconfigured_port2_state,
5336                                         &misconfigured->theEvent);
5337                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
5338                                         &misconfigured->theEvent);
5339                         break;
5340                 case LPFC_LINK_NUMBER_3:
5341                         status = bf_get(lpfc_sli_misconfigured_port3_state,
5342                                         &misconfigured->theEvent);
5343                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
5344                                         &misconfigured->theEvent);
5345                         break;
5346                 default:
5347                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5348                                         "3296 "
5349                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
5350                                         "event: Invalid link %d",
5351                                         phba->sli4_hba.lnk_info.lnk_no);
5352                         return;
5353                 }
5354
5355                 /* Skip if optic state unchanged */
5356                 if (phba->sli4_hba.lnk_info.optic_state == status)
5357                         return;
5358
5359                 switch (status) {
5360                 case LPFC_SLI_EVENT_STATUS_VALID:
5361                         sprintf(message, "Physical Link is functional");
5362                         break;
5363                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
5364                         sprintf(message, "Optics faulted/incorrectly "
5365                                 "installed/not installed - Reseat optics, "
5366                                 "if issue not resolved, replace.");
5367                         break;
5368                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
5369                         sprintf(message,
5370                                 "Optics of two types installed - Remove one "
5371                                 "optic or install matching pair of optics.");
5372                         break;
5373                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
5374                         sprintf(message, "Incompatible optics - Replace with "
5375                                 "compatible optics for card to function.");
5376                         break;
5377                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
5378                         sprintf(message, "Unqualified optics - Replace with "
5379                                 "Avago optics for Warranty and Technical "
5380                                 "Support - Link is%s operational",
5381                                 (operational) ? " not" : "");
5382                         break;
5383                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
5384                         sprintf(message, "Uncertified optics - Replace with "
5385                                 "Avago-certified optics to enable link "
5386                                 "operation - Link is%s operational",
5387                                 (operational) ? " not" : "");
5388                         break;
5389                 default:
5390                         /* firmware is reporting a status we don't know about */
5391                         sprintf(message, "Unknown event status x%02x", status);
5392                         break;
5393                 }
5394
5395                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
5396                 rc = lpfc_sli4_read_config(phba);
5397                 if (rc) {
5398                         phba->lmt = 0;
5399                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5400                                         "3194 Unable to retrieve supported "
5401                                         "speeds, rc = 0x%x\n", rc);
5402                 }
5403                 vports = lpfc_create_vport_work_array(phba);
5404                 if (vports != NULL) {
5405                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5406                                         i++) {
5407                                 shost = lpfc_shost_from_vport(vports[i]);
5408                                 lpfc_host_supported_speeds_set(shost);
5409                         }
5410                 }
5411                 lpfc_destroy_vport_work_array(phba, vports);
5412
5413                 phba->sli4_hba.lnk_info.optic_state = status;
5414                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5415                                 "3176 Port Name %c %s\n", port_name, message);
5416                 break;
5417         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
5418                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5419                                 "3192 Remote DPort Test Initiated - "
5420                                 "Event Data1:x%08x Event Data2: x%08x\n",
5421                                 acqe_sli->event_data1, acqe_sli->event_data2);
5422                 break;
5423         default:
5424                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5425                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
5426                                 "x%08x SLI Event Type:%d\n",
5427                                 acqe_sli->event_data1, acqe_sli->event_data2,
5428                                 evt_type);
5429                 break;
5430         }
5431 }
5432
5433 /**
5434  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
5435  * @vport: pointer to vport data structure.
5436  *
5437  * This routine is to perform Clear Virtual Link (CVL) on a vport in
5438  * response to a CVL event.
5439  *
5440  * Return the pointer to the ndlp with the vport if successful, otherwise
5441  * return NULL.
5442  **/
5443 static struct lpfc_nodelist *
5444 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
5445 {
5446         struct lpfc_nodelist *ndlp;
5447         struct Scsi_Host *shost;
5448         struct lpfc_hba *phba;
5449
5450         if (!vport)
5451                 return NULL;
5452         phba = vport->phba;
5453         if (!phba)
5454                 return NULL;
5455         ndlp = lpfc_findnode_did(vport, Fabric_DID);
5456         if (!ndlp) {
5457                 /* Cannot find existing Fabric ndlp, so allocate a new one */
5458                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
5459                 if (!ndlp)
5460                         return 0;
5461                 /* Set the node type */
5462                 ndlp->nlp_type |= NLP_FABRIC;
5463                 /* Put ndlp onto node list */
5464                 lpfc_enqueue_node(vport, ndlp);
5465         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
5466                 /* re-setup ndlp without removing from node list */
5467                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
5468                 if (!ndlp)
5469                         return 0;
5470         }
5471         if ((phba->pport->port_state < LPFC_FLOGI) &&
5472                 (phba->pport->port_state != LPFC_VPORT_FAILED))
5473                 return NULL;
5474         /* If virtual link is not yet instantiated ignore CVL */
5475         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
5476                 && (vport->port_state != LPFC_VPORT_FAILED))
5477                 return NULL;
5478         shost = lpfc_shost_from_vport(vport);
5479         if (!shost)
5480                 return NULL;
5481         lpfc_linkdown_port(vport);
5482         lpfc_cleanup_pending_mbox(vport);
5483         spin_lock_irq(shost->host_lock);
5484         vport->fc_flag |= FC_VPORT_CVL_RCVD;
5485         spin_unlock_irq(shost->host_lock);
5486
5487         return ndlp;
5488 }
5489
5490 /**
5491  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
5492  * @vport: pointer to lpfc hba data structure.
5493  *
5494  * This routine is to perform Clear Virtual Link (CVL) on all vports in
5495  * response to a FCF dead event.
5496  **/
5497 static void
5498 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
5499 {
5500         struct lpfc_vport **vports;
5501         int i;
5502
5503         vports = lpfc_create_vport_work_array(phba);
5504         if (vports)
5505                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
5506                         lpfc_sli4_perform_vport_cvl(vports[i]);
5507         lpfc_destroy_vport_work_array(phba, vports);
5508 }
5509
5510 /**
5511  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
5512  * @phba: pointer to lpfc hba data structure.
5513  * @acqe_link: pointer to the async fcoe completion queue entry.
5514  *
5515  * This routine is to handle the SLI4 asynchronous fcoe event.
5516  **/
5517 static void
5518 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
5519                         struct lpfc_acqe_fip *acqe_fip)
5520 {
5521         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
5522         int rc;
5523         struct lpfc_vport *vport;
5524         struct lpfc_nodelist *ndlp;
5525         struct Scsi_Host  *shost;
5526         int active_vlink_present;
5527         struct lpfc_vport **vports;
5528         int i;
5529
5530         phba->fc_eventTag = acqe_fip->event_tag;
5531         phba->fcoe_eventtag = acqe_fip->event_tag;
5532         switch (event_type) {
5533         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
5534         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
5535                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
5536                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5537                                         LOG_DISCOVERY,
5538                                         "2546 New FCF event, evt_tag:x%x, "
5539                                         "index:x%x\n",
5540                                         acqe_fip->event_tag,
5541                                         acqe_fip->index);
5542                 else
5543                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
5544                                         LOG_DISCOVERY,
5545                                         "2788 FCF param modified event, "
5546                                         "evt_tag:x%x, index:x%x\n",
5547                                         acqe_fip->event_tag,
5548                                         acqe_fip->index);
5549                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5550                         /*
5551                          * During period of FCF discovery, read the FCF
5552                          * table record indexed by the event to update
5553                          * FCF roundrobin failover eligible FCF bmask.
5554                          */
5555                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5556                                         LOG_DISCOVERY,
5557                                         "2779 Read FCF (x%x) for updating "
5558                                         "roundrobin FCF failover bmask\n",
5559                                         acqe_fip->index);
5560                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
5561                 }
5562
5563                 /* If the FCF discovery is in progress, do nothing. */
5564                 spin_lock_irq(&phba->hbalock);
5565                 if (phba->hba_flag & FCF_TS_INPROG) {
5566                         spin_unlock_irq(&phba->hbalock);
5567                         break;
5568                 }
5569                 /* If fast FCF failover rescan event is pending, do nothing */
5570                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
5571                         spin_unlock_irq(&phba->hbalock);
5572                         break;
5573                 }
5574
5575                 /* If the FCF has been in discovered state, do nothing. */
5576                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
5577                         spin_unlock_irq(&phba->hbalock);
5578                         break;
5579                 }
5580                 spin_unlock_irq(&phba->hbalock);
5581
5582                 /* Otherwise, scan the entire FCF table and re-discover SAN */
5583                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5584                                 "2770 Start FCF table scan per async FCF "
5585                                 "event, evt_tag:x%x, index:x%x\n",
5586                                 acqe_fip->event_tag, acqe_fip->index);
5587                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
5588                                                      LPFC_FCOE_FCF_GET_FIRST);
5589                 if (rc)
5590                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5591                                         "2547 Issue FCF scan read FCF mailbox "
5592                                         "command failed (x%x)\n", rc);
5593                 break;
5594
5595         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
5596                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5597                         "2548 FCF Table full count 0x%x tag 0x%x\n",
5598                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
5599                         acqe_fip->event_tag);
5600                 break;
5601
5602         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
5603                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5604                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5605                         "2549 FCF (x%x) disconnected from network, "
5606                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
5607                 /*
5608                  * If we are in the middle of FCF failover process, clear
5609                  * the corresponding FCF bit in the roundrobin bitmap.
5610                  */
5611                 spin_lock_irq(&phba->hbalock);
5612                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
5613                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
5614                         spin_unlock_irq(&phba->hbalock);
5615                         /* Update FLOGI FCF failover eligible FCF bmask */
5616                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
5617                         break;
5618                 }
5619                 spin_unlock_irq(&phba->hbalock);
5620
5621                 /* If the event is not for currently used fcf do nothing */
5622                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
5623                         break;
5624
5625                 /*
5626                  * Otherwise, request the port to rediscover the entire FCF
5627                  * table for a fast recovery from case that the current FCF
5628                  * is no longer valid as we are not in the middle of FCF
5629                  * failover process already.
5630                  */
5631                 spin_lock_irq(&phba->hbalock);
5632                 /* Mark the fast failover process in progress */
5633                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
5634                 spin_unlock_irq(&phba->hbalock);
5635
5636                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5637                                 "2771 Start FCF fast failover process due to "
5638                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
5639                                 "\n", acqe_fip->event_tag, acqe_fip->index);
5640                 rc = lpfc_sli4_redisc_fcf_table(phba);
5641                 if (rc) {
5642                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5643                                         LOG_DISCOVERY,
5644                                         "2772 Issue FCF rediscover mailbox "
5645                                         "command failed, fail through to FCF "
5646                                         "dead event\n");
5647                         spin_lock_irq(&phba->hbalock);
5648                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
5649                         spin_unlock_irq(&phba->hbalock);
5650                         /*
5651                          * Last resort will fail over by treating this
5652                          * as a link down to FCF registration.
5653                          */
5654                         lpfc_sli4_fcf_dead_failthrough(phba);
5655                 } else {
5656                         /* Reset FCF roundrobin bmask for new discovery */
5657                         lpfc_sli4_clear_fcf_rr_bmask(phba);
5658                         /*
5659                          * Handling fast FCF failover to a DEAD FCF event is
5660                          * considered equalivant to receiving CVL to all vports.
5661                          */
5662                         lpfc_sli4_perform_all_vport_cvl(phba);
5663                 }
5664                 break;
5665         case LPFC_FIP_EVENT_TYPE_CVL:
5666                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
5667                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5668                         "2718 Clear Virtual Link Received for VPI 0x%x"
5669                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
5670
5671                 vport = lpfc_find_vport_by_vpid(phba,
5672                                                 acqe_fip->index);
5673                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
5674                 if (!ndlp)
5675                         break;
5676                 active_vlink_present = 0;
5677
5678                 vports = lpfc_create_vport_work_array(phba);
5679                 if (vports) {
5680                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
5681                                         i++) {
5682                                 if ((!(vports[i]->fc_flag &
5683                                         FC_VPORT_CVL_RCVD)) &&
5684                                         (vports[i]->port_state > LPFC_FDISC)) {
5685                                         active_vlink_present = 1;
5686                                         break;
5687                                 }
5688                         }
5689                         lpfc_destroy_vport_work_array(phba, vports);
5690                 }
5691
5692                 /*
5693                  * Don't re-instantiate if vport is marked for deletion.
5694                  * If we are here first then vport_delete is going to wait
5695                  * for discovery to complete.
5696                  */
5697                 if (!(vport->load_flag & FC_UNLOADING) &&
5698                                         active_vlink_present) {
5699                         /*
5700                          * If there are other active VLinks present,
5701                          * re-instantiate the Vlink using FDISC.
5702                          */
5703                         mod_timer(&ndlp->nlp_delayfunc,
5704                                   jiffies + msecs_to_jiffies(1000));
5705                         shost = lpfc_shost_from_vport(vport);
5706                         spin_lock_irq(shost->host_lock);
5707                         ndlp->nlp_flag |= NLP_DELAY_TMO;
5708                         spin_unlock_irq(shost->host_lock);
5709                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
5710                         vport->port_state = LPFC_FDISC;
5711                 } else {
5712                         /*
5713                          * Otherwise, we request port to rediscover
5714                          * the entire FCF table for a fast recovery
5715                          * from possible case that the current FCF
5716                          * is no longer valid if we are not already
5717                          * in the FCF failover process.
5718                          */
5719                         spin_lock_irq(&phba->hbalock);
5720                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
5721                                 spin_unlock_irq(&phba->hbalock);
5722                                 break;
5723                         }
5724                         /* Mark the fast failover process in progress */
5725                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
5726                         spin_unlock_irq(&phba->hbalock);
5727                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
5728                                         LOG_DISCOVERY,
5729                                         "2773 Start FCF failover per CVL, "
5730                                         "evt_tag:x%x\n", acqe_fip->event_tag);
5731                         rc = lpfc_sli4_redisc_fcf_table(phba);
5732                         if (rc) {
5733                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
5734                                                 LOG_DISCOVERY,
5735                                                 "2774 Issue FCF rediscover "
5736                                                 "mailbox command failed, "
5737                                                 "through to CVL event\n");
5738                                 spin_lock_irq(&phba->hbalock);
5739                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
5740                                 spin_unlock_irq(&phba->hbalock);
5741                                 /*
5742                                  * Last resort will be re-try on the
5743                                  * the current registered FCF entry.
5744                                  */
5745                                 lpfc_retry_pport_discovery(phba);
5746                         } else
5747                                 /*
5748                                  * Reset FCF roundrobin bmask for new
5749                                  * discovery.
5750                                  */
5751                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
5752                 }
5753                 break;
5754         default:
5755                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5756                         "0288 Unknown FCoE event type 0x%x event tag "
5757                         "0x%x\n", event_type, acqe_fip->event_tag);
5758                 break;
5759         }
5760 }
5761
5762 /**
5763  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
5764  * @phba: pointer to lpfc hba data structure.
5765  * @acqe_link: pointer to the async dcbx completion queue entry.
5766  *
5767  * This routine is to handle the SLI4 asynchronous dcbx event.
5768  **/
5769 static void
5770 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
5771                          struct lpfc_acqe_dcbx *acqe_dcbx)
5772 {
5773         phba->fc_eventTag = acqe_dcbx->event_tag;
5774         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5775                         "0290 The SLI4 DCBX asynchronous event is not "
5776                         "handled yet\n");
5777 }
5778
5779 /**
5780  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
5781  * @phba: pointer to lpfc hba data structure.
5782  * @acqe_link: pointer to the async grp5 completion queue entry.
5783  *
5784  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
5785  * is an asynchronous notified of a logical link speed change.  The Port
5786  * reports the logical link speed in units of 10Mbps.
5787  **/
5788 static void
5789 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
5790                          struct lpfc_acqe_grp5 *acqe_grp5)
5791 {
5792         uint16_t prev_ll_spd;
5793
5794         phba->fc_eventTag = acqe_grp5->event_tag;
5795         phba->fcoe_eventtag = acqe_grp5->event_tag;
5796         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
5797         phba->sli4_hba.link_state.logical_speed =
5798                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
5799         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5800                         "2789 GRP5 Async Event: Updating logical link speed "
5801                         "from %dMbps to %dMbps\n", prev_ll_spd,
5802                         phba->sli4_hba.link_state.logical_speed);
5803 }
5804
5805 /**
5806  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
5807  * @phba: pointer to lpfc hba data structure.
5808  *
5809  * This routine is invoked by the worker thread to process all the pending
5810  * SLI4 asynchronous events.
5811  **/
5812 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
5813 {
5814         struct lpfc_cq_event *cq_event;
5815
5816         /* First, declare the async event has been handled */
5817         spin_lock_irq(&phba->hbalock);
5818         phba->hba_flag &= ~ASYNC_EVENT;
5819         spin_unlock_irq(&phba->hbalock);
5820         /* Now, handle all the async events */
5821         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
5822                 /* Get the first event from the head of the event queue */
5823                 spin_lock_irq(&phba->hbalock);
5824                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
5825                                  cq_event, struct lpfc_cq_event, list);
5826                 spin_unlock_irq(&phba->hbalock);
5827                 /* Process the asynchronous event */
5828                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
5829                 case LPFC_TRAILER_CODE_LINK:
5830                         lpfc_sli4_async_link_evt(phba,
5831                                                  &cq_event->cqe.acqe_link);
5832                         break;
5833                 case LPFC_TRAILER_CODE_FCOE:
5834                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
5835                         break;
5836                 case LPFC_TRAILER_CODE_DCBX:
5837                         lpfc_sli4_async_dcbx_evt(phba,
5838                                                  &cq_event->cqe.acqe_dcbx);
5839                         break;
5840                 case LPFC_TRAILER_CODE_GRP5:
5841                         lpfc_sli4_async_grp5_evt(phba,
5842                                                  &cq_event->cqe.acqe_grp5);
5843                         break;
5844                 case LPFC_TRAILER_CODE_FC:
5845                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
5846                         break;
5847                 case LPFC_TRAILER_CODE_SLI:
5848                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
5849                         break;
5850                 default:
5851                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5852                                         "1804 Invalid asynchrous event code: "
5853                                         "x%x\n", bf_get(lpfc_trailer_code,
5854                                         &cq_event->cqe.mcqe_cmpl));
5855                         break;
5856                 }
5857                 /* Free the completion event processed to the free pool */
5858                 lpfc_sli4_cq_event_release(phba, cq_event);
5859         }
5860 }
5861
5862 /**
5863  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
5864  * @phba: pointer to lpfc hba data structure.
5865  *
5866  * This routine is invoked by the worker thread to process FCF table
5867  * rediscovery pending completion event.
5868  **/
5869 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
5870 {
5871         int rc;
5872
5873         spin_lock_irq(&phba->hbalock);
5874         /* Clear FCF rediscovery timeout event */
5875         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
5876         /* Clear driver fast failover FCF record flag */
5877         phba->fcf.failover_rec.flag = 0;
5878         /* Set state for FCF fast failover */
5879         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
5880         spin_unlock_irq(&phba->hbalock);
5881
5882         /* Scan FCF table from the first entry to re-discover SAN */
5883         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
5884                         "2777 Start post-quiescent FCF table scan\n");
5885         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
5886         if (rc)
5887                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
5888                                 "2747 Issue FCF scan read FCF mailbox "
5889                                 "command failed 0x%x\n", rc);
5890 }
5891
5892 /**
5893  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
5894  * @phba: pointer to lpfc hba data structure.
5895  * @dev_grp: The HBA PCI-Device group number.
5896  *
5897  * This routine is invoked to set up the per HBA PCI-Device group function
5898  * API jump table entries.
5899  *
5900  * Return: 0 if success, otherwise -ENODEV
5901  **/
5902 int
5903 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5904 {
5905         int rc;
5906
5907         /* Set up lpfc PCI-device group */
5908         phba->pci_dev_grp = dev_grp;
5909
5910         /* The LPFC_PCI_DEV_OC uses SLI4 */
5911         if (dev_grp == LPFC_PCI_DEV_OC)
5912                 phba->sli_rev = LPFC_SLI_REV4;
5913
5914         /* Set up device INIT API function jump table */
5915         rc = lpfc_init_api_table_setup(phba, dev_grp);
5916         if (rc)
5917                 return -ENODEV;
5918         /* Set up SCSI API function jump table */
5919         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
5920         if (rc)
5921                 return -ENODEV;
5922         /* Set up SLI API function jump table */
5923         rc = lpfc_sli_api_table_setup(phba, dev_grp);
5924         if (rc)
5925                 return -ENODEV;
5926         /* Set up MBOX API function jump table */
5927         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
5928         if (rc)
5929                 return -ENODEV;
5930
5931         return 0;
5932 }
5933
5934 /**
5935  * lpfc_log_intr_mode - Log the active interrupt mode
5936  * @phba: pointer to lpfc hba data structure.
5937  * @intr_mode: active interrupt mode adopted.
5938  *
5939  * This routine it invoked to log the currently used active interrupt mode
5940  * to the device.
5941  **/
5942 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
5943 {
5944         switch (intr_mode) {
5945         case 0:
5946                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5947                                 "0470 Enable INTx interrupt mode.\n");
5948                 break;
5949         case 1:
5950                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5951                                 "0481 Enabled MSI interrupt mode.\n");
5952                 break;
5953         case 2:
5954                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5955                                 "0480 Enabled MSI-X interrupt mode.\n");
5956                 break;
5957         default:
5958                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5959                                 "0482 Illegal interrupt mode.\n");
5960                 break;
5961         }
5962         return;
5963 }
5964
5965 /**
5966  * lpfc_enable_pci_dev - Enable a generic PCI device.
5967  * @phba: pointer to lpfc hba data structure.
5968  *
5969  * This routine is invoked to enable the PCI device that is common to all
5970  * PCI devices.
5971  *
5972  * Return codes
5973  *      0 - successful
5974  *      other values - error
5975  **/
5976 static int
5977 lpfc_enable_pci_dev(struct lpfc_hba *phba)
5978 {
5979         struct pci_dev *pdev;
5980
5981         /* Obtain PCI device reference */
5982         if (!phba->pcidev)
5983                 goto out_error;
5984         else
5985                 pdev = phba->pcidev;
5986         /* Enable PCI device */
5987         if (pci_enable_device_mem(pdev))
5988                 goto out_error;
5989         /* Request PCI resource for the device */
5990         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
5991                 goto out_disable_device;
5992         /* Set up device as PCI master and save state for EEH */
5993         pci_set_master(pdev);
5994         pci_try_set_mwi(pdev);
5995         pci_save_state(pdev);
5996
5997         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
5998         if (pci_is_pcie(pdev))
5999                 pdev->needs_freset = 1;
6000
6001         return 0;
6002
6003 out_disable_device:
6004         pci_disable_device(pdev);
6005 out_error:
6006         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6007                         "1401 Failed to enable pci device\n");
6008         return -ENODEV;
6009 }
6010
6011 /**
6012  * lpfc_disable_pci_dev - Disable a generic PCI device.
6013  * @phba: pointer to lpfc hba data structure.
6014  *
6015  * This routine is invoked to disable the PCI device that is common to all
6016  * PCI devices.
6017  **/
6018 static void
6019 lpfc_disable_pci_dev(struct lpfc_hba *phba)
6020 {
6021         struct pci_dev *pdev;
6022
6023         /* Obtain PCI device reference */
6024         if (!phba->pcidev)
6025                 return;
6026         else
6027                 pdev = phba->pcidev;
6028         /* Release PCI resource and disable PCI device */
6029         pci_release_mem_regions(pdev);
6030         pci_disable_device(pdev);
6031
6032         return;
6033 }
6034
6035 /**
6036  * lpfc_reset_hba - Reset a hba
6037  * @phba: pointer to lpfc hba data structure.
6038  *
6039  * This routine is invoked to reset a hba device. It brings the HBA
6040  * offline, performs a board restart, and then brings the board back
6041  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
6042  * on outstanding mailbox commands.
6043  **/
6044 void
6045 lpfc_reset_hba(struct lpfc_hba *phba)
6046 {
6047         /* If resets are disabled then set error state and return. */
6048         if (!phba->cfg_enable_hba_reset) {
6049                 phba->link_state = LPFC_HBA_ERROR;
6050                 return;
6051         }
6052         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
6053                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
6054         else
6055                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
6056         lpfc_offline(phba);
6057         lpfc_sli_brdrestart(phba);
6058         lpfc_online(phba);
6059         lpfc_unblock_mgmt_io(phba);
6060 }
6061
6062 /**
6063  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
6064  * @phba: pointer to lpfc hba data structure.
6065  *
6066  * This function enables the PCI SR-IOV virtual functions to a physical
6067  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6068  * enable the number of virtual functions to the physical function. As
6069  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6070  * API call does not considered as an error condition for most of the device.
6071  **/
6072 uint16_t
6073 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
6074 {
6075         struct pci_dev *pdev = phba->pcidev;
6076         uint16_t nr_virtfn;
6077         int pos;
6078
6079         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
6080         if (pos == 0)
6081                 return 0;
6082
6083         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
6084         return nr_virtfn;
6085 }
6086
6087 /**
6088  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
6089  * @phba: pointer to lpfc hba data structure.
6090  * @nr_vfn: number of virtual functions to be enabled.
6091  *
6092  * This function enables the PCI SR-IOV virtual functions to a physical
6093  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
6094  * enable the number of virtual functions to the physical function. As
6095  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
6096  * API call does not considered as an error condition for most of the device.
6097  **/
6098 int
6099 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
6100 {
6101         struct pci_dev *pdev = phba->pcidev;
6102         uint16_t max_nr_vfn;
6103         int rc;
6104
6105         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
6106         if (nr_vfn > max_nr_vfn) {
6107                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6108                                 "3057 Requested vfs (%d) greater than "
6109                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
6110                 return -EINVAL;
6111         }
6112
6113         rc = pci_enable_sriov(pdev, nr_vfn);
6114         if (rc) {
6115                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6116                                 "2806 Failed to enable sriov on this device "
6117                                 "with vfn number nr_vf:%d, rc:%d\n",
6118                                 nr_vfn, rc);
6119         } else
6120                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6121                                 "2807 Successful enable sriov on this device "
6122                                 "with vfn number nr_vf:%d\n", nr_vfn);
6123         return rc;
6124 }
6125
6126 /**
6127  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
6128  * @phba: pointer to lpfc hba data structure.
6129  *
6130  * This routine is invoked to set up the driver internal resources before the
6131  * device specific resource setup to support the HBA device it attached to.
6132  *
6133  * Return codes
6134  *      0 - successful
6135  *      other values - error
6136  **/
6137 static int
6138 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
6139 {
6140         struct lpfc_sli *psli = &phba->sli;
6141
6142         /*
6143          * Driver resources common to all SLI revisions
6144          */
6145         atomic_set(&phba->fast_event_count, 0);
6146         spin_lock_init(&phba->hbalock);
6147
6148         /* Initialize ndlp management spinlock */
6149         spin_lock_init(&phba->ndlp_lock);
6150
6151         /* Initialize port_list spinlock */
6152         spin_lock_init(&phba->port_list_lock);
6153         INIT_LIST_HEAD(&phba->port_list);
6154
6155         INIT_LIST_HEAD(&phba->work_list);
6156         init_waitqueue_head(&phba->wait_4_mlo_m_q);
6157
6158         /* Initialize the wait queue head for the kernel thread */
6159         init_waitqueue_head(&phba->work_waitq);
6160
6161         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6162                         "1403 Protocols supported %s %s %s\n",
6163                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
6164                                 "SCSI" : " "),
6165                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
6166                                 "NVME" : " "),
6167                         (phba->nvmet_support ? "NVMET" : " "));
6168
6169         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
6170         spin_lock_init(&phba->scsi_buf_list_get_lock);
6171         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
6172         spin_lock_init(&phba->scsi_buf_list_put_lock);
6173         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
6174
6175         /* Initialize the fabric iocb list */
6176         INIT_LIST_HEAD(&phba->fabric_iocb_list);
6177
6178         /* Initialize list to save ELS buffers */
6179         INIT_LIST_HEAD(&phba->elsbuf);
6180
6181         /* Initialize FCF connection rec list */
6182         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
6183
6184         /* Initialize OAS configuration list */
6185         spin_lock_init(&phba->devicelock);
6186         INIT_LIST_HEAD(&phba->luns);
6187
6188         /* MBOX heartbeat timer */
6189         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
6190         /* Fabric block timer */
6191         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
6192         /* EA polling mode timer */
6193         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
6194         /* Heartbeat timer */
6195         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
6196
6197         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
6198
6199         return 0;
6200 }
6201
6202 /**
6203  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
6204  * @phba: pointer to lpfc hba data structure.
6205  *
6206  * This routine is invoked to set up the driver internal resources specific to
6207  * support the SLI-3 HBA device it attached to.
6208  *
6209  * Return codes
6210  * 0 - successful
6211  * other values - error
6212  **/
6213 static int
6214 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
6215 {
6216         int rc, entry_sz;
6217
6218         /*
6219          * Initialize timers used by driver
6220          */
6221
6222         /* FCP polling mode timer */
6223         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
6224
6225         /* Host attention work mask setup */
6226         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
6227         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
6228
6229         /* Get all the module params for configuring this host */
6230         lpfc_get_cfgparam(phba);
6231         /* Set up phase-1 common device driver resources */
6232
6233         rc = lpfc_setup_driver_resource_phase1(phba);
6234         if (rc)
6235                 return -ENODEV;
6236
6237         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
6238                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
6239                 /* check for menlo minimum sg count */
6240                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
6241                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
6242         }
6243
6244         if (!phba->sli.sli3_ring)
6245                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
6246                                               sizeof(struct lpfc_sli_ring),
6247                                               GFP_KERNEL);
6248         if (!phba->sli.sli3_ring)
6249                 return -ENOMEM;
6250
6251         /*
6252          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
6253          * used to create the sg_dma_buf_pool must be dynamically calculated.
6254          */
6255
6256         /* Initialize the host templates the configured values. */
6257         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6258         lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt;
6259         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
6260
6261         if (phba->sli_rev == LPFC_SLI_REV4)
6262                 entry_sz = sizeof(struct sli4_sge);
6263         else
6264                 entry_sz = sizeof(struct ulp_bde64);
6265
6266         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
6267         if (phba->cfg_enable_bg) {
6268                 /*
6269                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
6270                  * the FCP rsp, and a BDE for each. Sice we have no control
6271                  * over how many protection data segments the SCSI Layer
6272                  * will hand us (ie: there could be one for every block
6273                  * in the IO), we just allocate enough BDEs to accomidate
6274                  * our max amount and we need to limit lpfc_sg_seg_cnt to
6275                  * minimize the risk of running out.
6276                  */
6277                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6278                         sizeof(struct fcp_rsp) +
6279                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
6280
6281                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
6282                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
6283
6284                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
6285                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
6286         } else {
6287                 /*
6288                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
6289                  * the FCP rsp, a BDE for each, and a BDE for up to
6290                  * cfg_sg_seg_cnt data segments.
6291                  */
6292                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6293                         sizeof(struct fcp_rsp) +
6294                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
6295
6296                 /* Total BDEs in BPL for scsi_sg_list */
6297                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
6298         }
6299
6300         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6301                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
6302                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6303                         phba->cfg_total_seg_cnt);
6304
6305         phba->max_vpi = LPFC_MAX_VPI;
6306         /* This will be set to correct value after config_port mbox */
6307         phba->max_vports = 0;
6308
6309         /*
6310          * Initialize the SLI Layer to run with lpfc HBAs.
6311          */
6312         lpfc_sli_setup(phba);
6313         lpfc_sli_queue_init(phba);
6314
6315         /* Allocate device driver memory */
6316         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
6317                 return -ENOMEM;
6318
6319         /*
6320          * Enable sr-iov virtual functions if supported and configured
6321          * through the module parameter.
6322          */
6323         if (phba->cfg_sriov_nr_virtfn > 0) {
6324                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6325                                                  phba->cfg_sriov_nr_virtfn);
6326                 if (rc) {
6327                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6328                                         "2808 Requested number of SR-IOV "
6329                                         "virtual functions (%d) is not "
6330                                         "supported\n",
6331                                         phba->cfg_sriov_nr_virtfn);
6332                         phba->cfg_sriov_nr_virtfn = 0;
6333                 }
6334         }
6335
6336         return 0;
6337 }
6338
6339 /**
6340  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
6341  * @phba: pointer to lpfc hba data structure.
6342  *
6343  * This routine is invoked to unset the driver internal resources set up
6344  * specific for supporting the SLI-3 HBA device it attached to.
6345  **/
6346 static void
6347 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
6348 {
6349         /* Free device driver memory allocated */
6350         lpfc_mem_free_all(phba);
6351
6352         return;
6353 }
6354
6355 /**
6356  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
6357  * @phba: pointer to lpfc hba data structure.
6358  *
6359  * This routine is invoked to set up the driver internal resources specific to
6360  * support the SLI-4 HBA device it attached to.
6361  *
6362  * Return codes
6363  *      0 - successful
6364  *      other values - error
6365  **/
6366 static int
6367 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
6368 {
6369         LPFC_MBOXQ_t *mboxq;
6370         MAILBOX_t *mb;
6371         int rc, i, max_buf_size;
6372         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
6373         struct lpfc_mqe *mqe;
6374         int longs;
6375         int extra;
6376         uint64_t wwn;
6377         u32 if_type;
6378         u32 if_fam;
6379
6380         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6381         phba->sli4_hba.num_possible_cpu = num_possible_cpus();
6382         phba->sli4_hba.curr_disp_cpu = 0;
6383
6384         /* Get all the module params for configuring this host */
6385         lpfc_get_cfgparam(phba);
6386
6387         /* Set up phase-1 common device driver resources */
6388         rc = lpfc_setup_driver_resource_phase1(phba);
6389         if (rc)
6390                 return -ENODEV;
6391
6392         /* Before proceed, wait for POST done and device ready */
6393         rc = lpfc_sli4_post_status_check(phba);
6394         if (rc)
6395                 return -ENODEV;
6396
6397         /*
6398          * Initialize timers used by driver
6399          */
6400
6401         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
6402
6403         /* FCF rediscover timer */
6404         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
6405
6406         /*
6407          * Control structure for handling external multi-buffer mailbox
6408          * command pass-through.
6409          */
6410         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
6411                 sizeof(struct lpfc_mbox_ext_buf_ctx));
6412         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
6413
6414         phba->max_vpi = LPFC_MAX_VPI;
6415
6416         /* This will be set to correct value after the read_config mbox */
6417         phba->max_vports = 0;
6418
6419         /* Program the default value of vlan_id and fc_map */
6420         phba->valid_vlan = 0;
6421         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
6422         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
6423         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
6424
6425         /*
6426          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
6427          * we will associate a new ring, for each EQ/CQ/WQ tuple.
6428          * The WQ create will allocate the ring.
6429          */
6430
6431         /*
6432          * 1 for cmd, 1 for rsp, NVME adds an extra one
6433          * for boundary conditions in its max_sgl_segment template.
6434          */
6435         extra = 2;
6436         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
6437                 extra++;
6438
6439         /*
6440          * It doesn't matter what family our adapter is in, we are
6441          * limited to 2 Pages, 512 SGEs, for our SGL.
6442          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
6443          */
6444         max_buf_size = (2 * SLI4_PAGE_SIZE);
6445
6446         /*
6447          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
6448          * used to create the sg_dma_buf_pool must be calculated.
6449          */
6450         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
6451                 /*
6452                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
6453                  * the FCP rsp, and a SGE. Sice we have no control
6454                  * over how many protection segments the SCSI Layer
6455                  * will hand us (ie: there could be one for every block
6456                  * in the IO), just allocate enough SGEs to accomidate
6457                  * our max amount and we need to limit lpfc_sg_seg_cnt
6458                  * to minimize the risk of running out.
6459                  */
6460                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6461                                 sizeof(struct fcp_rsp) + max_buf_size;
6462
6463                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
6464                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
6465
6466                 /*
6467                  * If supporting DIF, reduce the seg count for scsi to
6468                  * allow room for the DIF sges.
6469                  */
6470                 if (phba->cfg_enable_bg &&
6471                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
6472                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
6473                 else
6474                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6475
6476         } else {
6477                 /*
6478                  * The scsi_buf for a regular I/O holds the FCP cmnd,
6479                  * the FCP rsp, a SGE for each, and a SGE for up to
6480                  * cfg_sg_seg_cnt data segments.
6481                  */
6482                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
6483                                 sizeof(struct fcp_rsp) +
6484                                 ((phba->cfg_sg_seg_cnt + extra) *
6485                                 sizeof(struct sli4_sge));
6486
6487                 /* Total SGEs for scsi_sg_list */
6488                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
6489                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
6490
6491                 /*
6492                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
6493                  * need to post 1 page for the SGL.
6494                  */
6495         }
6496
6497         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
6498         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6499                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
6500                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
6501                                         "6300 Reducing NVME sg segment "
6502                                         "cnt to %d\n",
6503                                         LPFC_MAX_NVME_SEG_CNT);
6504                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
6505                 } else
6506                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
6507         }
6508
6509         /* Initialize the host templates with the updated values. */
6510         lpfc_vport_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6511         lpfc_template.sg_tablesize = phba->cfg_scsi_seg_cnt;
6512         lpfc_template_no_hr.sg_tablesize = phba->cfg_scsi_seg_cnt;
6513
6514         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
6515                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
6516         else
6517                 phba->cfg_sg_dma_buf_size =
6518                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
6519
6520         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
6521                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
6522                         "total:%d scsi:%d nvme:%d\n",
6523                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
6524                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
6525                         phba->cfg_nvme_seg_cnt);
6526
6527         /* Initialize buffer queue management fields */
6528         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
6529         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
6530         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
6531
6532         /*
6533          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
6534          */
6535         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
6536                 /* Initialize the Abort scsi buffer list used by driver */
6537                 spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
6538                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
6539         }
6540
6541         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
6542                 /* Initialize the Abort nvme buffer list used by driver */
6543                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
6544                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
6545                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
6546         }
6547
6548         /* This abort list used by worker thread */
6549         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
6550         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
6551
6552         /*
6553          * Initialize driver internal slow-path work queues
6554          */
6555
6556         /* Driver internel slow-path CQ Event pool */
6557         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
6558         /* Response IOCB work queue list */
6559         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
6560         /* Asynchronous event CQ Event work queue list */
6561         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
6562         /* Fast-path XRI aborted CQ Event work queue list */
6563         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
6564         /* Slow-path XRI aborted CQ Event work queue list */
6565         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
6566         /* Receive queue CQ Event work queue list */
6567         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
6568
6569         /* Initialize extent block lists. */
6570         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
6571         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
6572         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
6573         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
6574
6575         /* Initialize mboxq lists. If the early init routines fail
6576          * these lists need to be correctly initialized.
6577          */
6578         INIT_LIST_HEAD(&phba->sli.mboxq);
6579         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
6580
6581         /* initialize optic_state to 0xFF */
6582         phba->sli4_hba.lnk_info.optic_state = 0xff;
6583
6584         /* Allocate device driver memory */
6585         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
6586         if (rc)
6587                 return -ENOMEM;
6588
6589         /* IF Type 2 ports get initialized now. */
6590         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
6591             LPFC_SLI_INTF_IF_TYPE_2) {
6592                 rc = lpfc_pci_function_reset(phba);
6593                 if (unlikely(rc)) {
6594                         rc = -ENODEV;
6595                         goto out_free_mem;
6596                 }
6597                 phba->temp_sensor_support = 1;
6598         }
6599
6600         /* Create the bootstrap mailbox command */
6601         rc = lpfc_create_bootstrap_mbox(phba);
6602         if (unlikely(rc))
6603                 goto out_free_mem;
6604
6605         /* Set up the host's endian order with the device. */
6606         rc = lpfc_setup_endian_order(phba);
6607         if (unlikely(rc))
6608                 goto out_free_bsmbx;
6609
6610         /* Set up the hba's configuration parameters. */
6611         rc = lpfc_sli4_read_config(phba);
6612         if (unlikely(rc))
6613                 goto out_free_bsmbx;
6614         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
6615         if (unlikely(rc))
6616                 goto out_free_bsmbx;
6617
6618         /* IF Type 0 ports get initialized now. */
6619         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6620             LPFC_SLI_INTF_IF_TYPE_0) {
6621                 rc = lpfc_pci_function_reset(phba);
6622                 if (unlikely(rc))
6623                         goto out_free_bsmbx;
6624         }
6625
6626         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6627                                                        GFP_KERNEL);
6628         if (!mboxq) {
6629                 rc = -ENOMEM;
6630                 goto out_free_bsmbx;
6631         }
6632
6633         /* Check for NVMET being configured */
6634         phba->nvmet_support = 0;
6635         if (lpfc_enable_nvmet_cnt) {
6636
6637                 /* First get WWN of HBA instance */
6638                 lpfc_read_nv(phba, mboxq);
6639                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6640                 if (rc != MBX_SUCCESS) {
6641                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6642                                         "6016 Mailbox failed , mbxCmd x%x "
6643                                         "READ_NV, mbxStatus x%x\n",
6644                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
6645                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
6646                         mempool_free(mboxq, phba->mbox_mem_pool);
6647                         rc = -EIO;
6648                         goto out_free_bsmbx;
6649                 }
6650                 mb = &mboxq->u.mb;
6651                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
6652                        sizeof(uint64_t));
6653                 wwn = cpu_to_be64(wwn);
6654                 phba->sli4_hba.wwnn.u.name = wwn;
6655                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
6656                        sizeof(uint64_t));
6657                 /* wwn is WWPN of HBA instance */
6658                 wwn = cpu_to_be64(wwn);
6659                 phba->sli4_hba.wwpn.u.name = wwn;
6660
6661                 /* Check to see if it matches any module parameter */
6662                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
6663                         if (wwn == lpfc_enable_nvmet[i]) {
6664 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
6665                                 if (lpfc_nvmet_mem_alloc(phba))
6666                                         break;
6667
6668                                 phba->nvmet_support = 1; /* a match */
6669
6670                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6671                                                 "6017 NVME Target %016llx\n",
6672                                                 wwn);
6673 #else
6674                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6675                                                 "6021 Can't enable NVME Target."
6676                                                 " NVME_TARGET_FC infrastructure"
6677                                                 " is not in kernel\n");
6678 #endif
6679                                 /* Not supported for NVMET */
6680                                 phba->cfg_xri_rebalancing = 0;
6681                                 break;
6682                         }
6683                 }
6684         }
6685
6686         lpfc_nvme_mod_param_dep(phba);
6687
6688         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
6689         lpfc_supported_pages(mboxq);
6690         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6691         if (!rc) {
6692                 mqe = &mboxq->u.mqe;
6693                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
6694                        LPFC_MAX_SUPPORTED_PAGES);
6695                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
6696                         switch (pn_page[i]) {
6697                         case LPFC_SLI4_PARAMETERS:
6698                                 phba->sli4_hba.pc_sli4_params.supported = 1;
6699                                 break;
6700                         default:
6701                                 break;
6702                         }
6703                 }
6704                 /* Read the port's SLI4 Parameters capabilities if supported. */
6705                 if (phba->sli4_hba.pc_sli4_params.supported)
6706                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
6707                 if (rc) {
6708                         mempool_free(mboxq, phba->mbox_mem_pool);
6709                         rc = -EIO;
6710                         goto out_free_bsmbx;
6711                 }
6712         }
6713
6714         /*
6715          * Get sli4 parameters that override parameters from Port capabilities.
6716          * If this call fails, it isn't critical unless the SLI4 parameters come
6717          * back in conflict.
6718          */
6719         rc = lpfc_get_sli4_parameters(phba, mboxq);
6720         if (rc) {
6721                 if_type = bf_get(lpfc_sli_intf_if_type,
6722                                  &phba->sli4_hba.sli_intf);
6723                 if_fam = bf_get(lpfc_sli_intf_sli_family,
6724                                 &phba->sli4_hba.sli_intf);
6725                 if (phba->sli4_hba.extents_in_use &&
6726                     phba->sli4_hba.rpi_hdrs_in_use) {
6727                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6728                                 "2999 Unsupported SLI4 Parameters "
6729                                 "Extents and RPI headers enabled.\n");
6730                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6731                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
6732                                 mempool_free(mboxq, phba->mbox_mem_pool);
6733                                 rc = -EIO;
6734                                 goto out_free_bsmbx;
6735                         }
6736                 }
6737                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
6738                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
6739                         mempool_free(mboxq, phba->mbox_mem_pool);
6740                         rc = -EIO;
6741                         goto out_free_bsmbx;
6742                 }
6743         }
6744
6745         mempool_free(mboxq, phba->mbox_mem_pool);
6746
6747         /* Verify OAS is supported */
6748         lpfc_sli4_oas_verify(phba);
6749
6750         /* Verify RAS support on adapter */
6751         lpfc_sli4_ras_init(phba);
6752
6753         /* Verify all the SLI4 queues */
6754         rc = lpfc_sli4_queue_verify(phba);
6755         if (rc)
6756                 goto out_free_bsmbx;
6757
6758         /* Create driver internal CQE event pool */
6759         rc = lpfc_sli4_cq_event_pool_create(phba);
6760         if (rc)
6761                 goto out_free_bsmbx;
6762
6763         /* Initialize sgl lists per host */
6764         lpfc_init_sgl_list(phba);
6765
6766         /* Allocate and initialize active sgl array */
6767         rc = lpfc_init_active_sgl_array(phba);
6768         if (rc) {
6769                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6770                                 "1430 Failed to initialize sgl list.\n");
6771                 goto out_destroy_cq_event_pool;
6772         }
6773         rc = lpfc_sli4_init_rpi_hdrs(phba);
6774         if (rc) {
6775                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6776                                 "1432 Failed to initialize rpi headers.\n");
6777                 goto out_free_active_sgl;
6778         }
6779
6780         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
6781         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
6782         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
6783                                          GFP_KERNEL);
6784         if (!phba->fcf.fcf_rr_bmask) {
6785                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6786                                 "2759 Failed allocate memory for FCF round "
6787                                 "robin failover bmask\n");
6788                 rc = -ENOMEM;
6789                 goto out_remove_rpi_hdrs;
6790         }
6791
6792         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
6793                                             sizeof(struct lpfc_hba_eq_hdl),
6794                                             GFP_KERNEL);
6795         if (!phba->sli4_hba.hba_eq_hdl) {
6796                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6797                                 "2572 Failed allocate memory for "
6798                                 "fast-path per-EQ handle array\n");
6799                 rc = -ENOMEM;
6800                 goto out_free_fcf_rr_bmask;
6801         }
6802
6803         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
6804                                         sizeof(struct lpfc_vector_map_info),
6805                                         GFP_KERNEL);
6806         if (!phba->sli4_hba.cpu_map) {
6807                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6808                                 "3327 Failed allocate memory for msi-x "
6809                                 "interrupt vector mapping\n");
6810                 rc = -ENOMEM;
6811                 goto out_free_hba_eq_hdl;
6812         }
6813
6814         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
6815         if (!phba->sli4_hba.eq_info) {
6816                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6817                                 "3321 Failed allocation for per_cpu stats\n");
6818                 rc = -ENOMEM;
6819                 goto out_free_hba_cpu_map;
6820         }
6821         /*
6822          * Enable sr-iov virtual functions if supported and configured
6823          * through the module parameter.
6824          */
6825         if (phba->cfg_sriov_nr_virtfn > 0) {
6826                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
6827                                                  phba->cfg_sriov_nr_virtfn);
6828                 if (rc) {
6829                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6830                                         "3020 Requested number of SR-IOV "
6831                                         "virtual functions (%d) is not "
6832                                         "supported\n",
6833                                         phba->cfg_sriov_nr_virtfn);
6834                         phba->cfg_sriov_nr_virtfn = 0;
6835                 }
6836         }
6837
6838         return 0;
6839
6840 out_free_hba_cpu_map:
6841         kfree(phba->sli4_hba.cpu_map);
6842 out_free_hba_eq_hdl:
6843         kfree(phba->sli4_hba.hba_eq_hdl);
6844 out_free_fcf_rr_bmask:
6845         kfree(phba->fcf.fcf_rr_bmask);
6846 out_remove_rpi_hdrs:
6847         lpfc_sli4_remove_rpi_hdrs(phba);
6848 out_free_active_sgl:
6849         lpfc_free_active_sgl(phba);
6850 out_destroy_cq_event_pool:
6851         lpfc_sli4_cq_event_pool_destroy(phba);
6852 out_free_bsmbx:
6853         lpfc_destroy_bootstrap_mbox(phba);
6854 out_free_mem:
6855         lpfc_mem_free(phba);
6856         return rc;
6857 }
6858
6859 /**
6860  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
6861  * @phba: pointer to lpfc hba data structure.
6862  *
6863  * This routine is invoked to unset the driver internal resources set up
6864  * specific for supporting the SLI-4 HBA device it attached to.
6865  **/
6866 static void
6867 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
6868 {
6869         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
6870
6871         free_percpu(phba->sli4_hba.eq_info);
6872
6873         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
6874         kfree(phba->sli4_hba.cpu_map);
6875         phba->sli4_hba.num_possible_cpu = 0;
6876         phba->sli4_hba.num_present_cpu = 0;
6877         phba->sli4_hba.curr_disp_cpu = 0;
6878
6879         /* Free memory allocated for fast-path work queue handles */
6880         kfree(phba->sli4_hba.hba_eq_hdl);
6881
6882         /* Free the allocated rpi headers. */
6883         lpfc_sli4_remove_rpi_hdrs(phba);
6884         lpfc_sli4_remove_rpis(phba);
6885
6886         /* Free eligible FCF index bmask */
6887         kfree(phba->fcf.fcf_rr_bmask);
6888
6889         /* Free the ELS sgl list */
6890         lpfc_free_active_sgl(phba);
6891         lpfc_free_els_sgl_list(phba);
6892         lpfc_free_nvmet_sgl_list(phba);
6893
6894         /* Free the completion queue EQ event pool */
6895         lpfc_sli4_cq_event_release_all(phba);
6896         lpfc_sli4_cq_event_pool_destroy(phba);
6897
6898         /* Release resource identifiers. */
6899         lpfc_sli4_dealloc_resource_identifiers(phba);
6900
6901         /* Free the bsmbx region. */
6902         lpfc_destroy_bootstrap_mbox(phba);
6903
6904         /* Free the SLI Layer memory with SLI4 HBAs */
6905         lpfc_mem_free_all(phba);
6906
6907         /* Free the current connect table */
6908         list_for_each_entry_safe(conn_entry, next_conn_entry,
6909                 &phba->fcf_conn_rec_list, list) {
6910                 list_del_init(&conn_entry->list);
6911                 kfree(conn_entry);
6912         }
6913
6914         return;
6915 }
6916
6917 /**
6918  * lpfc_init_api_table_setup - Set up init api function jump table
6919  * @phba: The hba struct for which this call is being executed.
6920  * @dev_grp: The HBA PCI-Device group number.
6921  *
6922  * This routine sets up the device INIT interface API function jump table
6923  * in @phba struct.
6924  *
6925  * Returns: 0 - success, -ENODEV - failure.
6926  **/
6927 int
6928 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6929 {
6930         phba->lpfc_hba_init_link = lpfc_hba_init_link;
6931         phba->lpfc_hba_down_link = lpfc_hba_down_link;
6932         phba->lpfc_selective_reset = lpfc_selective_reset;
6933         switch (dev_grp) {
6934         case LPFC_PCI_DEV_LP:
6935                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
6936                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
6937                 phba->lpfc_stop_port = lpfc_stop_port_s3;
6938                 break;
6939         case LPFC_PCI_DEV_OC:
6940                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
6941                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
6942                 phba->lpfc_stop_port = lpfc_stop_port_s4;
6943                 break;
6944         default:
6945                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6946                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
6947                                 dev_grp);
6948                 return -ENODEV;
6949                 break;
6950         }
6951         return 0;
6952 }
6953
6954 /**
6955  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
6956  * @phba: pointer to lpfc hba data structure.
6957  *
6958  * This routine is invoked to set up the driver internal resources after the
6959  * device specific resource setup to support the HBA device it attached to.
6960  *
6961  * Return codes
6962  *      0 - successful
6963  *      other values - error
6964  **/
6965 static int
6966 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
6967 {
6968         int error;
6969
6970         /* Startup the kernel thread for this host adapter. */
6971         phba->worker_thread = kthread_run(lpfc_do_work, phba,
6972                                           "lpfc_worker_%d", phba->brd_no);
6973         if (IS_ERR(phba->worker_thread)) {
6974                 error = PTR_ERR(phba->worker_thread);
6975                 return error;
6976         }
6977
6978         /* The lpfc_wq workqueue for deferred irq use, is only used for SLI4 */
6979         if (phba->sli_rev == LPFC_SLI_REV4)
6980                 phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
6981         else
6982                 phba->wq = NULL;
6983
6984         return 0;
6985 }
6986
6987 /**
6988  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
6989  * @phba: pointer to lpfc hba data structure.
6990  *
6991  * This routine is invoked to unset the driver internal resources set up after
6992  * the device specific resource setup for supporting the HBA device it
6993  * attached to.
6994  **/
6995 static void
6996 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
6997 {
6998         if (phba->wq) {
6999                 flush_workqueue(phba->wq);
7000                 destroy_workqueue(phba->wq);
7001                 phba->wq = NULL;
7002         }
7003
7004         /* Stop kernel worker thread */
7005         if (phba->worker_thread)
7006                 kthread_stop(phba->worker_thread);
7007 }
7008
7009 /**
7010  * lpfc_free_iocb_list - Free iocb list.
7011  * @phba: pointer to lpfc hba data structure.
7012  *
7013  * This routine is invoked to free the driver's IOCB list and memory.
7014  **/
7015 void
7016 lpfc_free_iocb_list(struct lpfc_hba *phba)
7017 {
7018         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
7019
7020         spin_lock_irq(&phba->hbalock);
7021         list_for_each_entry_safe(iocbq_entry, iocbq_next,
7022                                  &phba->lpfc_iocb_list, list) {
7023                 list_del(&iocbq_entry->list);
7024                 kfree(iocbq_entry);
7025                 phba->total_iocbq_bufs--;
7026         }
7027         spin_unlock_irq(&phba->hbalock);
7028
7029         return;
7030 }
7031
7032 /**
7033  * lpfc_init_iocb_list - Allocate and initialize iocb list.
7034  * @phba: pointer to lpfc hba data structure.
7035  *
7036  * This routine is invoked to allocate and initizlize the driver's IOCB
7037  * list and set up the IOCB tag array accordingly.
7038  *
7039  * Return codes
7040  *      0 - successful
7041  *      other values - error
7042  **/
7043 int
7044 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
7045 {
7046         struct lpfc_iocbq *iocbq_entry = NULL;
7047         uint16_t iotag;
7048         int i;
7049
7050         /* Initialize and populate the iocb list per host.  */
7051         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
7052         for (i = 0; i < iocb_count; i++) {
7053                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
7054                 if (iocbq_entry == NULL) {
7055                         printk(KERN_ERR "%s: only allocated %d iocbs of "
7056                                 "expected %d count. Unloading driver.\n",
7057                                 __func__, i, LPFC_IOCB_LIST_CNT);
7058                         goto out_free_iocbq;
7059                 }
7060
7061                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
7062                 if (iotag == 0) {
7063                         kfree(iocbq_entry);
7064                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
7065                                 "Unloading driver.\n", __func__);
7066                         goto out_free_iocbq;
7067                 }
7068                 iocbq_entry->sli4_lxritag = NO_XRI;
7069                 iocbq_entry->sli4_xritag = NO_XRI;
7070
7071                 spin_lock_irq(&phba->hbalock);
7072                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
7073                 phba->total_iocbq_bufs++;
7074                 spin_unlock_irq(&phba->hbalock);
7075         }
7076
7077         return 0;
7078
7079 out_free_iocbq:
7080         lpfc_free_iocb_list(phba);
7081
7082         return -ENOMEM;
7083 }
7084
7085 /**
7086  * lpfc_free_sgl_list - Free a given sgl list.
7087  * @phba: pointer to lpfc hba data structure.
7088  * @sglq_list: pointer to the head of sgl list.
7089  *
7090  * This routine is invoked to free a give sgl list and memory.
7091  **/
7092 void
7093 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
7094 {
7095         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7096
7097         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
7098                 list_del(&sglq_entry->list);
7099                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
7100                 kfree(sglq_entry);
7101         }
7102 }
7103
7104 /**
7105  * lpfc_free_els_sgl_list - Free els sgl list.
7106  * @phba: pointer to lpfc hba data structure.
7107  *
7108  * This routine is invoked to free the driver's els sgl list and memory.
7109  **/
7110 static void
7111 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
7112 {
7113         LIST_HEAD(sglq_list);
7114
7115         /* Retrieve all els sgls from driver list */
7116         spin_lock_irq(&phba->hbalock);
7117         spin_lock(&phba->sli4_hba.sgl_list_lock);
7118         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
7119         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7120         spin_unlock_irq(&phba->hbalock);
7121
7122         /* Now free the sgl list */
7123         lpfc_free_sgl_list(phba, &sglq_list);
7124 }
7125
7126 /**
7127  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
7128  * @phba: pointer to lpfc hba data structure.
7129  *
7130  * This routine is invoked to free the driver's nvmet sgl list and memory.
7131  **/
7132 static void
7133 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
7134 {
7135         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
7136         LIST_HEAD(sglq_list);
7137
7138         /* Retrieve all nvmet sgls from driver list */
7139         spin_lock_irq(&phba->hbalock);
7140         spin_lock(&phba->sli4_hba.sgl_list_lock);
7141         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
7142         spin_unlock(&phba->sli4_hba.sgl_list_lock);
7143         spin_unlock_irq(&phba->hbalock);
7144
7145         /* Now free the sgl list */
7146         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
7147                 list_del(&sglq_entry->list);
7148                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
7149                 kfree(sglq_entry);
7150         }
7151
7152         /* Update the nvmet_xri_cnt to reflect no current sgls.
7153          * The next initialization cycle sets the count and allocates
7154          * the sgls over again.
7155          */
7156         phba->sli4_hba.nvmet_xri_cnt = 0;
7157 }
7158
7159 /**
7160  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
7161  * @phba: pointer to lpfc hba data structure.
7162  *
7163  * This routine is invoked to allocate the driver's active sgl memory.
7164  * This array will hold the sglq_entry's for active IOs.
7165  **/
7166 static int
7167 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
7168 {
7169         int size;
7170         size = sizeof(struct lpfc_sglq *);
7171         size *= phba->sli4_hba.max_cfg_param.max_xri;
7172
7173         phba->sli4_hba.lpfc_sglq_active_list =
7174                 kzalloc(size, GFP_KERNEL);
7175         if (!phba->sli4_hba.lpfc_sglq_active_list)
7176                 return -ENOMEM;
7177         return 0;
7178 }
7179
7180 /**
7181  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
7182  * @phba: pointer to lpfc hba data structure.
7183  *
7184  * This routine is invoked to walk through the array of active sglq entries
7185  * and free all of the resources.
7186  * This is just a place holder for now.
7187  **/
7188 static void
7189 lpfc_free_active_sgl(struct lpfc_hba *phba)
7190 {
7191         kfree(phba->sli4_hba.lpfc_sglq_active_list);
7192 }
7193
7194 /**
7195  * lpfc_init_sgl_list - Allocate and initialize sgl list.
7196  * @phba: pointer to lpfc hba data structure.
7197  *
7198  * This routine is invoked to allocate and initizlize the driver's sgl
7199  * list and set up the sgl xritag tag array accordingly.
7200  *
7201  **/
7202 static void
7203 lpfc_init_sgl_list(struct lpfc_hba *phba)
7204 {
7205         /* Initialize and populate the sglq list per host/VF. */
7206         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
7207         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7208         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
7209         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7210
7211         /* els xri-sgl book keeping */
7212         phba->sli4_hba.els_xri_cnt = 0;
7213
7214         /* nvme xri-buffer book keeping */
7215         phba->sli4_hba.io_xri_cnt = 0;
7216 }
7217
7218 /**
7219  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
7220  * @phba: pointer to lpfc hba data structure.
7221  *
7222  * This routine is invoked to post rpi header templates to the
7223  * port for those SLI4 ports that do not support extents.  This routine
7224  * posts a PAGE_SIZE memory region to the port to hold up to
7225  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
7226  * and should be called only when interrupts are disabled.
7227  *
7228  * Return codes
7229  *      0 - successful
7230  *      -ERROR - otherwise.
7231  **/
7232 int
7233 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
7234 {
7235         int rc = 0;
7236         struct lpfc_rpi_hdr *rpi_hdr;
7237
7238         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
7239         if (!phba->sli4_hba.rpi_hdrs_in_use)
7240                 return rc;
7241         if (phba->sli4_hba.extents_in_use)
7242                 return -EIO;
7243
7244         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
7245         if (!rpi_hdr) {
7246                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7247                                 "0391 Error during rpi post operation\n");
7248                 lpfc_sli4_remove_rpis(phba);
7249                 rc = -ENODEV;
7250         }
7251
7252         return rc;
7253 }
7254
7255 /**
7256  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
7257  * @phba: pointer to lpfc hba data structure.
7258  *
7259  * This routine is invoked to allocate a single 4KB memory region to
7260  * support rpis and stores them in the phba.  This single region
7261  * provides support for up to 64 rpis.  The region is used globally
7262  * by the device.
7263  *
7264  * Returns:
7265  *   A valid rpi hdr on success.
7266  *   A NULL pointer on any failure.
7267  **/
7268 struct lpfc_rpi_hdr *
7269 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
7270 {
7271         uint16_t rpi_limit, curr_rpi_range;
7272         struct lpfc_dmabuf *dmabuf;
7273         struct lpfc_rpi_hdr *rpi_hdr;
7274
7275         /*
7276          * If the SLI4 port supports extents, posting the rpi header isn't
7277          * required.  Set the expected maximum count and let the actual value
7278          * get set when extents are fully allocated.
7279          */
7280         if (!phba->sli4_hba.rpi_hdrs_in_use)
7281                 return NULL;
7282         if (phba->sli4_hba.extents_in_use)
7283                 return NULL;
7284
7285         /* The limit on the logical index is just the max_rpi count. */
7286         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
7287
7288         spin_lock_irq(&phba->hbalock);
7289         /*
7290          * Establish the starting RPI in this header block.  The starting
7291          * rpi is normalized to a zero base because the physical rpi is
7292          * port based.
7293          */
7294         curr_rpi_range = phba->sli4_hba.next_rpi;
7295         spin_unlock_irq(&phba->hbalock);
7296
7297         /* Reached full RPI range */
7298         if (curr_rpi_range == rpi_limit)
7299                 return NULL;
7300
7301         /*
7302          * First allocate the protocol header region for the port.  The
7303          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
7304          */
7305         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
7306         if (!dmabuf)
7307                 return NULL;
7308
7309         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
7310                                            LPFC_HDR_TEMPLATE_SIZE,
7311                                            &dmabuf->phys, GFP_KERNEL);
7312         if (!dmabuf->virt) {
7313                 rpi_hdr = NULL;
7314                 goto err_free_dmabuf;
7315         }
7316
7317         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
7318                 rpi_hdr = NULL;
7319                 goto err_free_coherent;
7320         }
7321
7322         /* Save the rpi header data for cleanup later. */
7323         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
7324         if (!rpi_hdr)
7325                 goto err_free_coherent;
7326
7327         rpi_hdr->dmabuf = dmabuf;
7328         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
7329         rpi_hdr->page_count = 1;
7330         spin_lock_irq(&phba->hbalock);
7331
7332         /* The rpi_hdr stores the logical index only. */
7333         rpi_hdr->start_rpi = curr_rpi_range;
7334         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
7335         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
7336
7337         spin_unlock_irq(&phba->hbalock);
7338         return rpi_hdr;
7339
7340  err_free_coherent:
7341         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
7342                           dmabuf->virt, dmabuf->phys);
7343  err_free_dmabuf:
7344         kfree(dmabuf);
7345         return NULL;
7346 }
7347
7348 /**
7349  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
7350  * @phba: pointer to lpfc hba data structure.
7351  *
7352  * This routine is invoked to remove all memory resources allocated
7353  * to support rpis for SLI4 ports not supporting extents. This routine
7354  * presumes the caller has released all rpis consumed by fabric or port
7355  * logins and is prepared to have the header pages removed.
7356  **/
7357 void
7358 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
7359 {
7360         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
7361
7362         if (!phba->sli4_hba.rpi_hdrs_in_use)
7363                 goto exit;
7364
7365         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
7366                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
7367                 list_del(&rpi_hdr->list);
7368                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
7369                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
7370                 kfree(rpi_hdr->dmabuf);
7371                 kfree(rpi_hdr);
7372         }
7373  exit:
7374         /* There are no rpis available to the port now. */
7375         phba->sli4_hba.next_rpi = 0;
7376 }
7377
7378 /**
7379  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
7380  * @pdev: pointer to pci device data structure.
7381  *
7382  * This routine is invoked to allocate the driver hba data structure for an
7383  * HBA device. If the allocation is successful, the phba reference to the
7384  * PCI device data structure is set.
7385  *
7386  * Return codes
7387  *      pointer to @phba - successful
7388  *      NULL - error
7389  **/
7390 static struct lpfc_hba *
7391 lpfc_hba_alloc(struct pci_dev *pdev)
7392 {
7393         struct lpfc_hba *phba;
7394
7395         /* Allocate memory for HBA structure */
7396         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
7397         if (!phba) {
7398                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
7399                 return NULL;
7400         }
7401
7402         /* Set reference to PCI device in HBA structure */
7403         phba->pcidev = pdev;
7404
7405         /* Assign an unused board number */
7406         phba->brd_no = lpfc_get_instance();
7407         if (phba->brd_no < 0) {
7408                 kfree(phba);
7409                 return NULL;
7410         }
7411         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
7412
7413         spin_lock_init(&phba->ct_ev_lock);
7414         INIT_LIST_HEAD(&phba->ct_ev_waiters);
7415
7416         return phba;
7417 }
7418
7419 /**
7420  * lpfc_hba_free - Free driver hba data structure with a device.
7421  * @phba: pointer to lpfc hba data structure.
7422  *
7423  * This routine is invoked to free the driver hba data structure with an
7424  * HBA device.
7425  **/
7426 static void
7427 lpfc_hba_free(struct lpfc_hba *phba)
7428 {
7429         if (phba->sli_rev == LPFC_SLI_REV4)
7430                 kfree(phba->sli4_hba.hdwq);
7431
7432         /* Release the driver assigned board number */
7433         idr_remove(&lpfc_hba_index, phba->brd_no);
7434
7435         /* Free memory allocated with sli3 rings */
7436         kfree(phba->sli.sli3_ring);
7437         phba->sli.sli3_ring = NULL;
7438
7439         kfree(phba);
7440         return;
7441 }
7442
7443 /**
7444  * lpfc_create_shost - Create hba physical port with associated scsi host.
7445  * @phba: pointer to lpfc hba data structure.
7446  *
7447  * This routine is invoked to create HBA physical port and associate a SCSI
7448  * host with it.
7449  *
7450  * Return codes
7451  *      0 - successful
7452  *      other values - error
7453  **/
7454 static int
7455 lpfc_create_shost(struct lpfc_hba *phba)
7456 {
7457         struct lpfc_vport *vport;
7458         struct Scsi_Host  *shost;
7459
7460         /* Initialize HBA FC structure */
7461         phba->fc_edtov = FF_DEF_EDTOV;
7462         phba->fc_ratov = FF_DEF_RATOV;
7463         phba->fc_altov = FF_DEF_ALTOV;
7464         phba->fc_arbtov = FF_DEF_ARBTOV;
7465
7466         atomic_set(&phba->sdev_cnt, 0);
7467         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
7468         if (!vport)
7469                 return -ENODEV;
7470
7471         shost = lpfc_shost_from_vport(vport);
7472         phba->pport = vport;
7473
7474         if (phba->nvmet_support) {
7475                 /* Only 1 vport (pport) will support NVME target */
7476                 if (phba->txrdy_payload_pool == NULL) {
7477                         phba->txrdy_payload_pool = dma_pool_create(
7478                                 "txrdy_pool", &phba->pcidev->dev,
7479                                 TXRDY_PAYLOAD_LEN, 16, 0);
7480                         if (phba->txrdy_payload_pool) {
7481                                 phba->targetport = NULL;
7482                                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
7483                                 lpfc_printf_log(phba, KERN_INFO,
7484                                                 LOG_INIT | LOG_NVME_DISC,
7485                                                 "6076 NVME Target Found\n");
7486                         }
7487                 }
7488         }
7489
7490         lpfc_debugfs_initialize(vport);
7491         /* Put reference to SCSI host to driver's device private data */
7492         pci_set_drvdata(phba->pcidev, shost);
7493
7494         /*
7495          * At this point we are fully registered with PSA. In addition,
7496          * any initial discovery should be completed.
7497          */
7498         vport->load_flag |= FC_ALLOW_FDMI;
7499         if (phba->cfg_enable_SmartSAN ||
7500             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
7501
7502                 /* Setup appropriate attribute masks */
7503                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
7504                 if (phba->cfg_enable_SmartSAN)
7505                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
7506                 else
7507                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
7508         }
7509         return 0;
7510 }
7511
7512 /**
7513  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
7514  * @phba: pointer to lpfc hba data structure.
7515  *
7516  * This routine is invoked to destroy HBA physical port and the associated
7517  * SCSI host.
7518  **/
7519 static void
7520 lpfc_destroy_shost(struct lpfc_hba *phba)
7521 {
7522         struct lpfc_vport *vport = phba->pport;
7523
7524         /* Destroy physical port that associated with the SCSI host */
7525         destroy_port(vport);
7526
7527         return;
7528 }
7529
7530 /**
7531  * lpfc_setup_bg - Setup Block guard structures and debug areas.
7532  * @phba: pointer to lpfc hba data structure.
7533  * @shost: the shost to be used to detect Block guard settings.
7534  *
7535  * This routine sets up the local Block guard protocol settings for @shost.
7536  * This routine also allocates memory for debugging bg buffers.
7537  **/
7538 static void
7539 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
7540 {
7541         uint32_t old_mask;
7542         uint32_t old_guard;
7543
7544         int pagecnt = 10;
7545         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7546                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7547                                 "1478 Registering BlockGuard with the "
7548                                 "SCSI layer\n");
7549
7550                 old_mask = phba->cfg_prot_mask;
7551                 old_guard = phba->cfg_prot_guard;
7552
7553                 /* Only allow supported values */
7554                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
7555                         SHOST_DIX_TYPE0_PROTECTION |
7556                         SHOST_DIX_TYPE1_PROTECTION);
7557                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
7558                                          SHOST_DIX_GUARD_CRC);
7559
7560                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
7561                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
7562                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
7563
7564                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
7565                         if ((old_mask != phba->cfg_prot_mask) ||
7566                                 (old_guard != phba->cfg_prot_guard))
7567                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7568                                         "1475 Registering BlockGuard with the "
7569                                         "SCSI layer: mask %d  guard %d\n",
7570                                         phba->cfg_prot_mask,
7571                                         phba->cfg_prot_guard);
7572
7573                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
7574                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
7575                 } else
7576                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7577                                 "1479 Not Registering BlockGuard with the SCSI "
7578                                 "layer, Bad protection parameters: %d %d\n",
7579                                 old_mask, old_guard);
7580         }
7581
7582         if (!_dump_buf_data) {
7583                 while (pagecnt) {
7584                         spin_lock_init(&_dump_buf_lock);
7585                         _dump_buf_data =
7586                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7587                         if (_dump_buf_data) {
7588                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7589                                         "9043 BLKGRD: allocated %d pages for "
7590                                        "_dump_buf_data at 0x%p\n",
7591                                        (1 << pagecnt), _dump_buf_data);
7592                                 _dump_buf_data_order = pagecnt;
7593                                 memset(_dump_buf_data, 0,
7594                                        ((1 << PAGE_SHIFT) << pagecnt));
7595                                 break;
7596                         } else
7597                                 --pagecnt;
7598                 }
7599                 if (!_dump_buf_data_order)
7600                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7601                                 "9044 BLKGRD: ERROR unable to allocate "
7602                                "memory for hexdump\n");
7603         } else
7604                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7605                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
7606                        "\n", _dump_buf_data);
7607         if (!_dump_buf_dif) {
7608                 while (pagecnt) {
7609                         _dump_buf_dif =
7610                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
7611                         if (_dump_buf_dif) {
7612                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7613                                         "9046 BLKGRD: allocated %d pages for "
7614                                        "_dump_buf_dif at 0x%p\n",
7615                                        (1 << pagecnt), _dump_buf_dif);
7616                                 _dump_buf_dif_order = pagecnt;
7617                                 memset(_dump_buf_dif, 0,
7618                                        ((1 << PAGE_SHIFT) << pagecnt));
7619                                 break;
7620                         } else
7621                                 --pagecnt;
7622                 }
7623                 if (!_dump_buf_dif_order)
7624                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7625                         "9047 BLKGRD: ERROR unable to allocate "
7626                                "memory for hexdump\n");
7627         } else
7628                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
7629                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
7630                        _dump_buf_dif);
7631 }
7632
7633 /**
7634  * lpfc_post_init_setup - Perform necessary device post initialization setup.
7635  * @phba: pointer to lpfc hba data structure.
7636  *
7637  * This routine is invoked to perform all the necessary post initialization
7638  * setup for the device.
7639  **/
7640 static void
7641 lpfc_post_init_setup(struct lpfc_hba *phba)
7642 {
7643         struct Scsi_Host  *shost;
7644         struct lpfc_adapter_event_header adapter_event;
7645
7646         /* Get the default values for Model Name and Description */
7647         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
7648
7649         /*
7650          * hba setup may have changed the hba_queue_depth so we need to
7651          * adjust the value of can_queue.
7652          */
7653         shost = pci_get_drvdata(phba->pcidev);
7654         shost->can_queue = phba->cfg_hba_queue_depth - 10;
7655         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
7656                 lpfc_setup_bg(phba, shost);
7657
7658         lpfc_host_attrib_init(shost);
7659
7660         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7661                 spin_lock_irq(shost->host_lock);
7662                 lpfc_poll_start_timer(phba);
7663                 spin_unlock_irq(shost->host_lock);
7664         }
7665
7666         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7667                         "0428 Perform SCSI scan\n");
7668         /* Send board arrival event to upper layer */
7669         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
7670         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
7671         fc_host_post_vendor_event(shost, fc_get_event_number(),
7672                                   sizeof(adapter_event),
7673                                   (char *) &adapter_event,
7674                                   LPFC_NL_VENDOR_ID);
7675         return;
7676 }
7677
7678 /**
7679  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
7680  * @phba: pointer to lpfc hba data structure.
7681  *
7682  * This routine is invoked to set up the PCI device memory space for device
7683  * with SLI-3 interface spec.
7684  *
7685  * Return codes
7686  *      0 - successful
7687  *      other values - error
7688  **/
7689 static int
7690 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
7691 {
7692         struct pci_dev *pdev = phba->pcidev;
7693         unsigned long bar0map_len, bar2map_len;
7694         int i, hbq_count;
7695         void *ptr;
7696         int error = -ENODEV;
7697
7698         if (!pdev)
7699                 return error;
7700
7701         /* Set the device DMA mask size */
7702         if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
7703             dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
7704                 return error;
7705
7706         /* Get the bus address of Bar0 and Bar2 and the number of bytes
7707          * required by each mapping.
7708          */
7709         phba->pci_bar0_map = pci_resource_start(pdev, 0);
7710         bar0map_len = pci_resource_len(pdev, 0);
7711
7712         phba->pci_bar2_map = pci_resource_start(pdev, 2);
7713         bar2map_len = pci_resource_len(pdev, 2);
7714
7715         /* Map HBA SLIM to a kernel virtual address. */
7716         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
7717         if (!phba->slim_memmap_p) {
7718                 dev_printk(KERN_ERR, &pdev->dev,
7719                            "ioremap failed for SLIM memory.\n");
7720                 goto out;
7721         }
7722
7723         /* Map HBA Control Registers to a kernel virtual address. */
7724         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
7725         if (!phba->ctrl_regs_memmap_p) {
7726                 dev_printk(KERN_ERR, &pdev->dev,
7727                            "ioremap failed for HBA control registers.\n");
7728                 goto out_iounmap_slim;
7729         }
7730
7731         /* Allocate memory for SLI-2 structures */
7732         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7733                                                 &phba->slim2p.phys, GFP_KERNEL);
7734         if (!phba->slim2p.virt)
7735                 goto out_iounmap;
7736
7737         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
7738         phba->mbox_ext = (phba->slim2p.virt +
7739                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
7740         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
7741         phba->IOCBs = (phba->slim2p.virt +
7742                        offsetof(struct lpfc_sli2_slim, IOCBs));
7743
7744         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
7745                                                  lpfc_sli_hbq_size(),
7746                                                  &phba->hbqslimp.phys,
7747                                                  GFP_KERNEL);
7748         if (!phba->hbqslimp.virt)
7749                 goto out_free_slim;
7750
7751         hbq_count = lpfc_sli_hbq_count();
7752         ptr = phba->hbqslimp.virt;
7753         for (i = 0; i < hbq_count; ++i) {
7754                 phba->hbqs[i].hbq_virt = ptr;
7755                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
7756                 ptr += (lpfc_hbq_defs[i]->entry_count *
7757                         sizeof(struct lpfc_hbq_entry));
7758         }
7759         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
7760         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
7761
7762         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
7763
7764         phba->MBslimaddr = phba->slim_memmap_p;
7765         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
7766         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
7767         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
7768         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
7769
7770         return 0;
7771
7772 out_free_slim:
7773         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7774                           phba->slim2p.virt, phba->slim2p.phys);
7775 out_iounmap:
7776         iounmap(phba->ctrl_regs_memmap_p);
7777 out_iounmap_slim:
7778         iounmap(phba->slim_memmap_p);
7779 out:
7780         return error;
7781 }
7782
7783 /**
7784  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
7785  * @phba: pointer to lpfc hba data structure.
7786  *
7787  * This routine is invoked to unset the PCI device memory space for device
7788  * with SLI-3 interface spec.
7789  **/
7790 static void
7791 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
7792 {
7793         struct pci_dev *pdev;
7794
7795         /* Obtain PCI device reference */
7796         if (!phba->pcidev)
7797                 return;
7798         else
7799                 pdev = phba->pcidev;
7800
7801         /* Free coherent DMA memory allocated */
7802         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7803                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7804         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7805                           phba->slim2p.virt, phba->slim2p.phys);
7806
7807         /* I/O memory unmap */
7808         iounmap(phba->ctrl_regs_memmap_p);
7809         iounmap(phba->slim_memmap_p);
7810
7811         return;
7812 }
7813
7814 /**
7815  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
7816  * @phba: pointer to lpfc hba data structure.
7817  *
7818  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
7819  * done and check status.
7820  *
7821  * Return 0 if successful, otherwise -ENODEV.
7822  **/
7823 int
7824 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
7825 {
7826         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
7827         struct lpfc_register reg_data;
7828         int i, port_error = 0;
7829         uint32_t if_type;
7830
7831         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
7832         memset(&reg_data, 0, sizeof(reg_data));
7833         if (!phba->sli4_hba.PSMPHRregaddr)
7834                 return -ENODEV;
7835
7836         /* Wait up to 30 seconds for the SLI Port POST done and ready */
7837         for (i = 0; i < 3000; i++) {
7838                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
7839                         &portsmphr_reg.word0) ||
7840                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
7841                         /* Port has a fatal POST error, break out */
7842                         port_error = -ENODEV;
7843                         break;
7844                 }
7845                 if (LPFC_POST_STAGE_PORT_READY ==
7846                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
7847                         break;
7848                 msleep(10);
7849         }
7850
7851         /*
7852          * If there was a port error during POST, then don't proceed with
7853          * other register reads as the data may not be valid.  Just exit.
7854          */
7855         if (port_error) {
7856                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7857                         "1408 Port Failed POST - portsmphr=0x%x, "
7858                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
7859                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
7860                         portsmphr_reg.word0,
7861                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
7862                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
7863                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
7864                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
7865                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
7866                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
7867                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
7868                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
7869         } else {
7870                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7871                                 "2534 Device Info: SLIFamily=0x%x, "
7872                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
7873                                 "SLIHint_2=0x%x, FT=0x%x\n",
7874                                 bf_get(lpfc_sli_intf_sli_family,
7875                                        &phba->sli4_hba.sli_intf),
7876                                 bf_get(lpfc_sli_intf_slirev,
7877                                        &phba->sli4_hba.sli_intf),
7878                                 bf_get(lpfc_sli_intf_if_type,
7879                                        &phba->sli4_hba.sli_intf),
7880                                 bf_get(lpfc_sli_intf_sli_hint1,
7881                                        &phba->sli4_hba.sli_intf),
7882                                 bf_get(lpfc_sli_intf_sli_hint2,
7883                                        &phba->sli4_hba.sli_intf),
7884                                 bf_get(lpfc_sli_intf_func_type,
7885                                        &phba->sli4_hba.sli_intf));
7886                 /*
7887                  * Check for other Port errors during the initialization
7888                  * process.  Fail the load if the port did not come up
7889                  * correctly.
7890                  */
7891                 if_type = bf_get(lpfc_sli_intf_if_type,
7892                                  &phba->sli4_hba.sli_intf);
7893                 switch (if_type) {
7894                 case LPFC_SLI_INTF_IF_TYPE_0:
7895                         phba->sli4_hba.ue_mask_lo =
7896                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
7897                         phba->sli4_hba.ue_mask_hi =
7898                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
7899                         uerrlo_reg.word0 =
7900                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
7901                         uerrhi_reg.word0 =
7902                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
7903                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
7904                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
7905                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7906                                                 "1422 Unrecoverable Error "
7907                                                 "Detected during POST "
7908                                                 "uerr_lo_reg=0x%x, "
7909                                                 "uerr_hi_reg=0x%x, "
7910                                                 "ue_mask_lo_reg=0x%x, "
7911                                                 "ue_mask_hi_reg=0x%x\n",
7912                                                 uerrlo_reg.word0,
7913                                                 uerrhi_reg.word0,
7914                                                 phba->sli4_hba.ue_mask_lo,
7915                                                 phba->sli4_hba.ue_mask_hi);
7916                                 port_error = -ENODEV;
7917                         }
7918                         break;
7919                 case LPFC_SLI_INTF_IF_TYPE_2:
7920                 case LPFC_SLI_INTF_IF_TYPE_6:
7921                         /* Final checks.  The port status should be clean. */
7922                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7923                                 &reg_data.word0) ||
7924                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
7925                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
7926                                 phba->work_status[0] =
7927                                         readl(phba->sli4_hba.u.if_type2.
7928                                               ERR1regaddr);
7929                                 phba->work_status[1] =
7930                                         readl(phba->sli4_hba.u.if_type2.
7931                                               ERR2regaddr);
7932                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7933                                         "2888 Unrecoverable port error "
7934                                         "following POST: port status reg "
7935                                         "0x%x, port_smphr reg 0x%x, "
7936                                         "error 1=0x%x, error 2=0x%x\n",
7937                                         reg_data.word0,
7938                                         portsmphr_reg.word0,
7939                                         phba->work_status[0],
7940                                         phba->work_status[1]);
7941                                 port_error = -ENODEV;
7942                         }
7943                         break;
7944                 case LPFC_SLI_INTF_IF_TYPE_1:
7945                 default:
7946                         break;
7947                 }
7948         }
7949         return port_error;
7950 }
7951
7952 /**
7953  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
7954  * @phba: pointer to lpfc hba data structure.
7955  * @if_type:  The SLI4 interface type getting configured.
7956  *
7957  * This routine is invoked to set up SLI4 BAR0 PCI config space register
7958  * memory map.
7959  **/
7960 static void
7961 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
7962 {
7963         switch (if_type) {
7964         case LPFC_SLI_INTF_IF_TYPE_0:
7965                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
7966                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
7967                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
7968                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
7969                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
7970                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
7971                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
7972                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
7973                 phba->sli4_hba.SLIINTFregaddr =
7974                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7975                 break;
7976         case LPFC_SLI_INTF_IF_TYPE_2:
7977                 phba->sli4_hba.u.if_type2.EQDregaddr =
7978                         phba->sli4_hba.conf_regs_memmap_p +
7979                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
7980                 phba->sli4_hba.u.if_type2.ERR1regaddr =
7981                         phba->sli4_hba.conf_regs_memmap_p +
7982                                                 LPFC_CTL_PORT_ER1_OFFSET;
7983                 phba->sli4_hba.u.if_type2.ERR2regaddr =
7984                         phba->sli4_hba.conf_regs_memmap_p +
7985                                                 LPFC_CTL_PORT_ER2_OFFSET;
7986                 phba->sli4_hba.u.if_type2.CTRLregaddr =
7987                         phba->sli4_hba.conf_regs_memmap_p +
7988                                                 LPFC_CTL_PORT_CTL_OFFSET;
7989                 phba->sli4_hba.u.if_type2.STATUSregaddr =
7990                         phba->sli4_hba.conf_regs_memmap_p +
7991                                                 LPFC_CTL_PORT_STA_OFFSET;
7992                 phba->sli4_hba.SLIINTFregaddr =
7993                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
7994                 phba->sli4_hba.PSMPHRregaddr =
7995                         phba->sli4_hba.conf_regs_memmap_p +
7996                                                 LPFC_CTL_PORT_SEM_OFFSET;
7997                 phba->sli4_hba.RQDBregaddr =
7998                         phba->sli4_hba.conf_regs_memmap_p +
7999                                                 LPFC_ULP0_RQ_DOORBELL;
8000                 phba->sli4_hba.WQDBregaddr =
8001                         phba->sli4_hba.conf_regs_memmap_p +
8002                                                 LPFC_ULP0_WQ_DOORBELL;
8003                 phba->sli4_hba.CQDBregaddr =
8004                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
8005                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8006                 phba->sli4_hba.MQDBregaddr =
8007                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
8008                 phba->sli4_hba.BMBXregaddr =
8009                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8010                 break;
8011         case LPFC_SLI_INTF_IF_TYPE_6:
8012                 phba->sli4_hba.u.if_type2.EQDregaddr =
8013                         phba->sli4_hba.conf_regs_memmap_p +
8014                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
8015                 phba->sli4_hba.u.if_type2.ERR1regaddr =
8016                         phba->sli4_hba.conf_regs_memmap_p +
8017                                                 LPFC_CTL_PORT_ER1_OFFSET;
8018                 phba->sli4_hba.u.if_type2.ERR2regaddr =
8019                         phba->sli4_hba.conf_regs_memmap_p +
8020                                                 LPFC_CTL_PORT_ER2_OFFSET;
8021                 phba->sli4_hba.u.if_type2.CTRLregaddr =
8022                         phba->sli4_hba.conf_regs_memmap_p +
8023                                                 LPFC_CTL_PORT_CTL_OFFSET;
8024                 phba->sli4_hba.u.if_type2.STATUSregaddr =
8025                         phba->sli4_hba.conf_regs_memmap_p +
8026                                                 LPFC_CTL_PORT_STA_OFFSET;
8027                 phba->sli4_hba.PSMPHRregaddr =
8028                         phba->sli4_hba.conf_regs_memmap_p +
8029                                                 LPFC_CTL_PORT_SEM_OFFSET;
8030                 phba->sli4_hba.BMBXregaddr =
8031                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
8032                 break;
8033         case LPFC_SLI_INTF_IF_TYPE_1:
8034         default:
8035                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8036                            "FATAL - unsupported SLI4 interface type - %d\n",
8037                            if_type);
8038                 break;
8039         }
8040 }
8041
8042 /**
8043  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
8044  * @phba: pointer to lpfc hba data structure.
8045  *
8046  * This routine is invoked to set up SLI4 BAR1 register memory map.
8047  **/
8048 static void
8049 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
8050 {
8051         switch (if_type) {
8052         case LPFC_SLI_INTF_IF_TYPE_0:
8053                 phba->sli4_hba.PSMPHRregaddr =
8054                         phba->sli4_hba.ctrl_regs_memmap_p +
8055                         LPFC_SLIPORT_IF0_SMPHR;
8056                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8057                         LPFC_HST_ISR0;
8058                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8059                         LPFC_HST_IMR0;
8060                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
8061                         LPFC_HST_ISCR0;
8062                 break;
8063         case LPFC_SLI_INTF_IF_TYPE_6:
8064                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8065                         LPFC_IF6_RQ_DOORBELL;
8066                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8067                         LPFC_IF6_WQ_DOORBELL;
8068                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8069                         LPFC_IF6_CQ_DOORBELL;
8070                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8071                         LPFC_IF6_EQ_DOORBELL;
8072                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
8073                         LPFC_IF6_MQ_DOORBELL;
8074                 break;
8075         case LPFC_SLI_INTF_IF_TYPE_2:
8076         case LPFC_SLI_INTF_IF_TYPE_1:
8077         default:
8078                 dev_err(&phba->pcidev->dev,
8079                            "FATAL - unsupported SLI4 interface type - %d\n",
8080                            if_type);
8081                 break;
8082         }
8083 }
8084
8085 /**
8086  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
8087  * @phba: pointer to lpfc hba data structure.
8088  * @vf: virtual function number
8089  *
8090  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
8091  * based on the given viftual function number, @vf.
8092  *
8093  * Return 0 if successful, otherwise -ENODEV.
8094  **/
8095 static int
8096 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
8097 {
8098         if (vf > LPFC_VIR_FUNC_MAX)
8099                 return -ENODEV;
8100
8101         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8102                                 vf * LPFC_VFR_PAGE_SIZE +
8103                                         LPFC_ULP0_RQ_DOORBELL);
8104         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8105                                 vf * LPFC_VFR_PAGE_SIZE +
8106                                         LPFC_ULP0_WQ_DOORBELL);
8107         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8108                                 vf * LPFC_VFR_PAGE_SIZE +
8109                                         LPFC_EQCQ_DOORBELL);
8110         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
8111         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8112                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
8113         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
8114                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
8115         return 0;
8116 }
8117
8118 /**
8119  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
8120  * @phba: pointer to lpfc hba data structure.
8121  *
8122  * This routine is invoked to create the bootstrap mailbox
8123  * region consistent with the SLI-4 interface spec.  This
8124  * routine allocates all memory necessary to communicate
8125  * mailbox commands to the port and sets up all alignment
8126  * needs.  No locks are expected to be held when calling
8127  * this routine.
8128  *
8129  * Return codes
8130  *      0 - successful
8131  *      -ENOMEM - could not allocated memory.
8132  **/
8133 static int
8134 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
8135 {
8136         uint32_t bmbx_size;
8137         struct lpfc_dmabuf *dmabuf;
8138         struct dma_address *dma_address;
8139         uint32_t pa_addr;
8140         uint64_t phys_addr;
8141
8142         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8143         if (!dmabuf)
8144                 return -ENOMEM;
8145
8146         /*
8147          * The bootstrap mailbox region is comprised of 2 parts
8148          * plus an alignment restriction of 16 bytes.
8149          */
8150         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
8151         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
8152                                            &dmabuf->phys, GFP_KERNEL);
8153         if (!dmabuf->virt) {
8154                 kfree(dmabuf);
8155                 return -ENOMEM;
8156         }
8157
8158         /*
8159          * Initialize the bootstrap mailbox pointers now so that the register
8160          * operations are simple later.  The mailbox dma address is required
8161          * to be 16-byte aligned.  Also align the virtual memory as each
8162          * maibox is copied into the bmbx mailbox region before issuing the
8163          * command to the port.
8164          */
8165         phba->sli4_hba.bmbx.dmabuf = dmabuf;
8166         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
8167
8168         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
8169                                               LPFC_ALIGN_16_BYTE);
8170         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
8171                                               LPFC_ALIGN_16_BYTE);
8172
8173         /*
8174          * Set the high and low physical addresses now.  The SLI4 alignment
8175          * requirement is 16 bytes and the mailbox is posted to the port
8176          * as two 30-bit addresses.  The other data is a bit marking whether
8177          * the 30-bit address is the high or low address.
8178          * Upcast bmbx aphys to 64bits so shift instruction compiles
8179          * clean on 32 bit machines.
8180          */
8181         dma_address = &phba->sli4_hba.bmbx.dma_address;
8182         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
8183         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
8184         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
8185                                            LPFC_BMBX_BIT1_ADDR_HI);
8186
8187         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
8188         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
8189                                            LPFC_BMBX_BIT1_ADDR_LO);
8190         return 0;
8191 }
8192
8193 /**
8194  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
8195  * @phba: pointer to lpfc hba data structure.
8196  *
8197  * This routine is invoked to teardown the bootstrap mailbox
8198  * region and release all host resources. This routine requires
8199  * the caller to ensure all mailbox commands recovered, no
8200  * additional mailbox comands are sent, and interrupts are disabled
8201  * before calling this routine.
8202  *
8203  **/
8204 static void
8205 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
8206 {
8207         dma_free_coherent(&phba->pcidev->dev,
8208                           phba->sli4_hba.bmbx.bmbx_size,
8209                           phba->sli4_hba.bmbx.dmabuf->virt,
8210                           phba->sli4_hba.bmbx.dmabuf->phys);
8211
8212         kfree(phba->sli4_hba.bmbx.dmabuf);
8213         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
8214 }
8215
8216 /**
8217  * lpfc_sli4_read_config - Get the config parameters.
8218  * @phba: pointer to lpfc hba data structure.
8219  *
8220  * This routine is invoked to read the configuration parameters from the HBA.
8221  * The configuration parameters are used to set the base and maximum values
8222  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
8223  * allocation for the port.
8224  *
8225  * Return codes
8226  *      0 - successful
8227  *      -ENOMEM - No available memory
8228  *      -EIO - The mailbox failed to complete successfully.
8229  **/
8230 int
8231 lpfc_sli4_read_config(struct lpfc_hba *phba)
8232 {
8233         LPFC_MBOXQ_t *pmb;
8234         struct lpfc_mbx_read_config *rd_config;
8235         union  lpfc_sli4_cfg_shdr *shdr;
8236         uint32_t shdr_status, shdr_add_status;
8237         struct lpfc_mbx_get_func_cfg *get_func_cfg;
8238         struct lpfc_rsrc_desc_fcfcoe *desc;
8239         char *pdesc_0;
8240         uint16_t forced_link_speed;
8241         uint32_t if_type, qmin;
8242         int length, i, rc = 0, rc2;
8243
8244         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8245         if (!pmb) {
8246                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8247                                 "2011 Unable to allocate memory for issuing "
8248                                 "SLI_CONFIG_SPECIAL mailbox command\n");
8249                 return -ENOMEM;
8250         }
8251
8252         lpfc_read_config(phba, pmb);
8253
8254         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8255         if (rc != MBX_SUCCESS) {
8256                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8257                         "2012 Mailbox failed , mbxCmd x%x "
8258                         "READ_CONFIG, mbxStatus x%x\n",
8259                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
8260                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
8261                 rc = -EIO;
8262         } else {
8263                 rd_config = &pmb->u.mqe.un.rd_config;
8264                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
8265                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
8266                         phba->sli4_hba.lnk_info.lnk_tp =
8267                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
8268                         phba->sli4_hba.lnk_info.lnk_no =
8269                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
8270                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8271                                         "3081 lnk_type:%d, lnk_numb:%d\n",
8272                                         phba->sli4_hba.lnk_info.lnk_tp,
8273                                         phba->sli4_hba.lnk_info.lnk_no);
8274                 } else
8275                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8276                                         "3082 Mailbox (x%x) returned ldv:x0\n",
8277                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
8278                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
8279                         phba->bbcredit_support = 1;
8280                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
8281                 }
8282
8283                 phba->sli4_hba.conf_trunk =
8284                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
8285                 phba->sli4_hba.extents_in_use =
8286                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
8287                 phba->sli4_hba.max_cfg_param.max_xri =
8288                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
8289                 phba->sli4_hba.max_cfg_param.xri_base =
8290                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
8291                 phba->sli4_hba.max_cfg_param.max_vpi =
8292                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
8293                 /* Limit the max we support */
8294                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
8295                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
8296                 phba->sli4_hba.max_cfg_param.vpi_base =
8297                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
8298                 phba->sli4_hba.max_cfg_param.max_rpi =
8299                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
8300                 phba->sli4_hba.max_cfg_param.rpi_base =
8301                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
8302                 phba->sli4_hba.max_cfg_param.max_vfi =
8303                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
8304                 phba->sli4_hba.max_cfg_param.vfi_base =
8305                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
8306                 phba->sli4_hba.max_cfg_param.max_fcfi =
8307                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
8308                 phba->sli4_hba.max_cfg_param.max_eq =
8309                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
8310                 phba->sli4_hba.max_cfg_param.max_rq =
8311                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
8312                 phba->sli4_hba.max_cfg_param.max_wq =
8313                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
8314                 phba->sli4_hba.max_cfg_param.max_cq =
8315                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
8316                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
8317                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
8318                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
8319                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
8320                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
8321                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
8322                 phba->max_vports = phba->max_vpi;
8323                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8324                                 "2003 cfg params Extents? %d "
8325                                 "XRI(B:%d M:%d), "
8326                                 "VPI(B:%d M:%d) "
8327                                 "VFI(B:%d M:%d) "
8328                                 "RPI(B:%d M:%d) "
8329                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n",
8330                                 phba->sli4_hba.extents_in_use,
8331                                 phba->sli4_hba.max_cfg_param.xri_base,
8332                                 phba->sli4_hba.max_cfg_param.max_xri,
8333                                 phba->sli4_hba.max_cfg_param.vpi_base,
8334                                 phba->sli4_hba.max_cfg_param.max_vpi,
8335                                 phba->sli4_hba.max_cfg_param.vfi_base,
8336                                 phba->sli4_hba.max_cfg_param.max_vfi,
8337                                 phba->sli4_hba.max_cfg_param.rpi_base,
8338                                 phba->sli4_hba.max_cfg_param.max_rpi,
8339                                 phba->sli4_hba.max_cfg_param.max_fcfi,
8340                                 phba->sli4_hba.max_cfg_param.max_eq,
8341                                 phba->sli4_hba.max_cfg_param.max_cq,
8342                                 phba->sli4_hba.max_cfg_param.max_wq,
8343                                 phba->sli4_hba.max_cfg_param.max_rq);
8344
8345                 /*
8346                  * Calculate queue resources based on how
8347                  * many WQ/CQ/EQs are available.
8348                  */
8349                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
8350                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
8351                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
8352                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
8353                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
8354                 /*
8355                  * Whats left after this can go toward NVME / FCP.
8356                  * The minus 4 accounts for ELS, NVME LS, MBOX
8357                  * plus one extra. When configured for
8358                  * NVMET, FCP io channel WQs are not created.
8359                  */
8360                 qmin -= 4;
8361
8362                 /* If NVME is configured, double the number of CQ/WQs needed */
8363                 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
8364                     !phba->nvmet_support)
8365                         qmin /= 2;
8366
8367                 /* Check to see if there is enough for NVME */
8368                 if ((phba->cfg_irq_chann > qmin) ||
8369                     (phba->cfg_hdw_queue > qmin)) {
8370                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8371                                         "2005 Reducing Queues: "
8372                                         "WQ %d CQ %d EQ %d: min %d: "
8373                                         "IRQ %d HDWQ %d\n",
8374                                         phba->sli4_hba.max_cfg_param.max_wq,
8375                                         phba->sli4_hba.max_cfg_param.max_cq,
8376                                         phba->sli4_hba.max_cfg_param.max_eq,
8377                                         qmin, phba->cfg_irq_chann,
8378                                         phba->cfg_hdw_queue);
8379
8380                         if (phba->cfg_irq_chann > qmin)
8381                                 phba->cfg_irq_chann = qmin;
8382                         if (phba->cfg_hdw_queue > qmin)
8383                                 phba->cfg_hdw_queue = qmin;
8384                 }
8385         }
8386
8387         if (rc)
8388                 goto read_cfg_out;
8389
8390         /* Update link speed if forced link speed is supported */
8391         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8392         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
8393                 forced_link_speed =
8394                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
8395                 if (forced_link_speed) {
8396                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
8397
8398                         switch (forced_link_speed) {
8399                         case LINK_SPEED_1G:
8400                                 phba->cfg_link_speed =
8401                                         LPFC_USER_LINK_SPEED_1G;
8402                                 break;
8403                         case LINK_SPEED_2G:
8404                                 phba->cfg_link_speed =
8405                                         LPFC_USER_LINK_SPEED_2G;
8406                                 break;
8407                         case LINK_SPEED_4G:
8408                                 phba->cfg_link_speed =
8409                                         LPFC_USER_LINK_SPEED_4G;
8410                                 break;
8411                         case LINK_SPEED_8G:
8412                                 phba->cfg_link_speed =
8413                                         LPFC_USER_LINK_SPEED_8G;
8414                                 break;
8415                         case LINK_SPEED_10G:
8416                                 phba->cfg_link_speed =
8417                                         LPFC_USER_LINK_SPEED_10G;
8418                                 break;
8419                         case LINK_SPEED_16G:
8420                                 phba->cfg_link_speed =
8421                                         LPFC_USER_LINK_SPEED_16G;
8422                                 break;
8423                         case LINK_SPEED_32G:
8424                                 phba->cfg_link_speed =
8425                                         LPFC_USER_LINK_SPEED_32G;
8426                                 break;
8427                         case LINK_SPEED_64G:
8428                                 phba->cfg_link_speed =
8429                                         LPFC_USER_LINK_SPEED_64G;
8430                                 break;
8431                         case 0xffff:
8432                                 phba->cfg_link_speed =
8433                                         LPFC_USER_LINK_SPEED_AUTO;
8434                                 break;
8435                         default:
8436                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8437                                                 "0047 Unrecognized link "
8438                                                 "speed : %d\n",
8439                                                 forced_link_speed);
8440                                 phba->cfg_link_speed =
8441                                         LPFC_USER_LINK_SPEED_AUTO;
8442                         }
8443                 }
8444         }
8445
8446         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
8447         length = phba->sli4_hba.max_cfg_param.max_xri -
8448                         lpfc_sli4_get_els_iocb_cnt(phba);
8449         if (phba->cfg_hba_queue_depth > length) {
8450                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8451                                 "3361 HBA queue depth changed from %d to %d\n",
8452                                 phba->cfg_hba_queue_depth, length);
8453                 phba->cfg_hba_queue_depth = length;
8454         }
8455
8456         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
8457             LPFC_SLI_INTF_IF_TYPE_2)
8458                 goto read_cfg_out;
8459
8460         /* get the pf# and vf# for SLI4 if_type 2 port */
8461         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
8462                   sizeof(struct lpfc_sli4_cfg_mhdr));
8463         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
8464                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
8465                          length, LPFC_SLI4_MBX_EMBED);
8466
8467         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8468         shdr = (union lpfc_sli4_cfg_shdr *)
8469                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
8470         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8471         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
8472         if (rc2 || shdr_status || shdr_add_status) {
8473                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8474                                 "3026 Mailbox failed , mbxCmd x%x "
8475                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
8476                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
8477                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
8478                 goto read_cfg_out;
8479         }
8480
8481         /* search for fc_fcoe resrouce descriptor */
8482         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
8483
8484         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
8485         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
8486         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
8487         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
8488                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
8489         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
8490                 goto read_cfg_out;
8491
8492         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
8493                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
8494                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
8495                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
8496                         phba->sli4_hba.iov.pf_number =
8497                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
8498                         phba->sli4_hba.iov.vf_number =
8499                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
8500                         break;
8501                 }
8502         }
8503
8504         if (i < LPFC_RSRC_DESC_MAX_NUM)
8505                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8506                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
8507                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
8508                                 phba->sli4_hba.iov.vf_number);
8509         else
8510                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8511                                 "3028 GET_FUNCTION_CONFIG: failed to find "
8512                                 "Resource Descriptor:x%x\n",
8513                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
8514
8515 read_cfg_out:
8516         mempool_free(pmb, phba->mbox_mem_pool);
8517         return rc;
8518 }
8519
8520 /**
8521  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
8522  * @phba: pointer to lpfc hba data structure.
8523  *
8524  * This routine is invoked to setup the port-side endian order when
8525  * the port if_type is 0.  This routine has no function for other
8526  * if_types.
8527  *
8528  * Return codes
8529  *      0 - successful
8530  *      -ENOMEM - No available memory
8531  *      -EIO - The mailbox failed to complete successfully.
8532  **/
8533 static int
8534 lpfc_setup_endian_order(struct lpfc_hba *phba)
8535 {
8536         LPFC_MBOXQ_t *mboxq;
8537         uint32_t if_type, rc = 0;
8538         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
8539                                       HOST_ENDIAN_HIGH_WORD1};
8540
8541         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8542         switch (if_type) {
8543         case LPFC_SLI_INTF_IF_TYPE_0:
8544                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8545                                                        GFP_KERNEL);
8546                 if (!mboxq) {
8547                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8548                                         "0492 Unable to allocate memory for "
8549                                         "issuing SLI_CONFIG_SPECIAL mailbox "
8550                                         "command\n");
8551                         return -ENOMEM;
8552                 }
8553
8554                 /*
8555                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
8556                  * two words to contain special data values and no other data.
8557                  */
8558                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
8559                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
8560                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8561                 if (rc != MBX_SUCCESS) {
8562                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8563                                         "0493 SLI_CONFIG_SPECIAL mailbox "
8564                                         "failed with status x%x\n",
8565                                         rc);
8566                         rc = -EIO;
8567                 }
8568                 mempool_free(mboxq, phba->mbox_mem_pool);
8569                 break;
8570         case LPFC_SLI_INTF_IF_TYPE_6:
8571         case LPFC_SLI_INTF_IF_TYPE_2:
8572         case LPFC_SLI_INTF_IF_TYPE_1:
8573         default:
8574                 break;
8575         }
8576         return rc;
8577 }
8578
8579 /**
8580  * lpfc_sli4_queue_verify - Verify and update EQ counts
8581  * @phba: pointer to lpfc hba data structure.
8582  *
8583  * This routine is invoked to check the user settable queue counts for EQs.
8584  * After this routine is called the counts will be set to valid values that
8585  * adhere to the constraints of the system's interrupt vectors and the port's
8586  * queue resources.
8587  *
8588  * Return codes
8589  *      0 - successful
8590  *      -ENOMEM - No available memory
8591  **/
8592 static int
8593 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
8594 {
8595         /*
8596          * Sanity check for configured queue parameters against the run-time
8597          * device parameters
8598          */
8599
8600         if (phba->nvmet_support) {
8601                 if (phba->cfg_irq_chann < phba->cfg_nvmet_mrq)
8602                         phba->cfg_nvmet_mrq = phba->cfg_irq_chann;
8603         }
8604         if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
8605                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
8606
8607         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8608                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
8609                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
8610                         phba->cfg_nvmet_mrq);
8611
8612         /* Get EQ depth from module parameter, fake the default for now */
8613         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8614         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8615
8616         /* Get CQ depth from module parameter, fake the default for now */
8617         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8618         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8619         return 0;
8620 }
8621
8622 static int
8623 lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx)
8624 {
8625         struct lpfc_queue *qdesc;
8626
8627         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8628                                       phba->sli4_hba.cq_esize,
8629                                       LPFC_CQE_EXP_COUNT);
8630         if (!qdesc) {
8631                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8632                                 "0508 Failed allocate fast-path NVME CQ (%d)\n",
8633                                 wqidx);
8634                 return 1;
8635         }
8636         qdesc->qe_valid = 1;
8637         qdesc->hdwq = wqidx;
8638         qdesc->chann = lpfc_find_cpu_handle(phba, wqidx, LPFC_FIND_BY_HDWQ);
8639         phba->sli4_hba.hdwq[wqidx].nvme_cq = qdesc;
8640
8641         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8642                                       LPFC_WQE128_SIZE, LPFC_WQE_EXP_COUNT);
8643         if (!qdesc) {
8644                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8645                                 "0509 Failed allocate fast-path NVME WQ (%d)\n",
8646                                 wqidx);
8647                 return 1;
8648         }
8649         qdesc->hdwq = wqidx;
8650         qdesc->chann = wqidx;
8651         phba->sli4_hba.hdwq[wqidx].nvme_wq = qdesc;
8652         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8653         return 0;
8654 }
8655
8656 static int
8657 lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx)
8658 {
8659         struct lpfc_queue *qdesc;
8660         uint32_t wqesize;
8661
8662         /* Create Fast Path FCP CQs */
8663         if (phba->enab_exp_wqcq_pages)
8664                 /* Increase the CQ size when WQEs contain an embedded cdb */
8665                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8666                                               phba->sli4_hba.cq_esize,
8667                                               LPFC_CQE_EXP_COUNT);
8668
8669         else
8670                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8671                                               phba->sli4_hba.cq_esize,
8672                                               phba->sli4_hba.cq_ecount);
8673         if (!qdesc) {
8674                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8675                         "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx);
8676                 return 1;
8677         }
8678         qdesc->qe_valid = 1;
8679         qdesc->hdwq = wqidx;
8680         qdesc->chann = lpfc_find_cpu_handle(phba, wqidx, LPFC_FIND_BY_HDWQ);
8681         phba->sli4_hba.hdwq[wqidx].fcp_cq = qdesc;
8682
8683         /* Create Fast Path FCP WQs */
8684         if (phba->enab_exp_wqcq_pages) {
8685                 /* Increase the WQ size when WQEs contain an embedded cdb */
8686                 wqesize = (phba->fcp_embed_io) ?
8687                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
8688                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
8689                                               wqesize,
8690                                               LPFC_WQE_EXP_COUNT);
8691         } else
8692                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8693                                               phba->sli4_hba.wq_esize,
8694                                               phba->sli4_hba.wq_ecount);
8695
8696         if (!qdesc) {
8697                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8698                                 "0503 Failed allocate fast-path FCP WQ (%d)\n",
8699                                 wqidx);
8700                 return 1;
8701         }
8702         qdesc->hdwq = wqidx;
8703         qdesc->chann = wqidx;
8704         phba->sli4_hba.hdwq[wqidx].fcp_wq = qdesc;
8705         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8706         return 0;
8707 }
8708
8709 /**
8710  * lpfc_sli4_queue_create - Create all the SLI4 queues
8711  * @phba: pointer to lpfc hba data structure.
8712  *
8713  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
8714  * operation. For each SLI4 queue type, the parameters such as queue entry
8715  * count (queue depth) shall be taken from the module parameter. For now,
8716  * we just use some constant number as place holder.
8717  *
8718  * Return codes
8719  *      0 - successful
8720  *      -ENOMEM - No availble memory
8721  *      -EIO - The mailbox failed to complete successfully.
8722  **/
8723 int
8724 lpfc_sli4_queue_create(struct lpfc_hba *phba)
8725 {
8726         struct lpfc_queue *qdesc;
8727         int idx, eqidx;
8728         struct lpfc_sli4_hdw_queue *qp;
8729         struct lpfc_eq_intr_info *eqi;
8730
8731         /*
8732          * Create HBA Record arrays.
8733          * Both NVME and FCP will share that same vectors / EQs
8734          */
8735         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
8736         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
8737         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
8738         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
8739         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
8740         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
8741         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
8742         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
8743         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
8744         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
8745
8746         if (!phba->sli4_hba.hdwq) {
8747                 phba->sli4_hba.hdwq = kcalloc(
8748                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
8749                         GFP_KERNEL);
8750                 if (!phba->sli4_hba.hdwq) {
8751                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8752                                         "6427 Failed allocate memory for "
8753                                         "fast-path Hardware Queue array\n");
8754                         goto out_error;
8755                 }
8756                 /* Prepare hardware queues to take IO buffers */
8757                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8758                         qp = &phba->sli4_hba.hdwq[idx];
8759                         spin_lock_init(&qp->io_buf_list_get_lock);
8760                         spin_lock_init(&qp->io_buf_list_put_lock);
8761                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
8762                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
8763                         qp->get_io_bufs = 0;
8764                         qp->put_io_bufs = 0;
8765                         qp->total_io_bufs = 0;
8766                         spin_lock_init(&qp->abts_scsi_buf_list_lock);
8767                         INIT_LIST_HEAD(&qp->lpfc_abts_scsi_buf_list);
8768                         qp->abts_scsi_io_bufs = 0;
8769                         spin_lock_init(&qp->abts_nvme_buf_list_lock);
8770                         INIT_LIST_HEAD(&qp->lpfc_abts_nvme_buf_list);
8771                         qp->abts_nvme_io_bufs = 0;
8772                 }
8773         }
8774
8775         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8776                 if (phba->nvmet_support) {
8777                         phba->sli4_hba.nvmet_cqset = kcalloc(
8778                                         phba->cfg_nvmet_mrq,
8779                                         sizeof(struct lpfc_queue *),
8780                                         GFP_KERNEL);
8781                         if (!phba->sli4_hba.nvmet_cqset) {
8782                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8783                                         "3121 Fail allocate memory for "
8784                                         "fast-path CQ set array\n");
8785                                 goto out_error;
8786                         }
8787                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
8788                                         phba->cfg_nvmet_mrq,
8789                                         sizeof(struct lpfc_queue *),
8790                                         GFP_KERNEL);
8791                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
8792                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8793                                         "3122 Fail allocate memory for "
8794                                         "fast-path RQ set hdr array\n");
8795                                 goto out_error;
8796                         }
8797                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
8798                                         phba->cfg_nvmet_mrq,
8799                                         sizeof(struct lpfc_queue *),
8800                                         GFP_KERNEL);
8801                         if (!phba->sli4_hba.nvmet_mrq_data) {
8802                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8803                                         "3124 Fail allocate memory for "
8804                                         "fast-path RQ set data array\n");
8805                                 goto out_error;
8806                         }
8807                 }
8808         }
8809
8810         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
8811
8812         /* Create HBA Event Queues (EQs) */
8813         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8814                 /*
8815                  * If there are more Hardware Queues than available
8816                  * CQs, multiple Hardware Queues may share a common EQ.
8817                  */
8818                 if (idx >= phba->cfg_irq_chann) {
8819                         /* Share an existing EQ */
8820                         eqidx = lpfc_find_eq_handle(phba, idx);
8821                         phba->sli4_hba.hdwq[idx].hba_eq =
8822                                 phba->sli4_hba.hdwq[eqidx].hba_eq;
8823                         continue;
8824                 }
8825                 /* Create an EQ */
8826                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8827                                               phba->sli4_hba.eq_esize,
8828                                               phba->sli4_hba.eq_ecount);
8829                 if (!qdesc) {
8830                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8831                                         "0497 Failed allocate EQ (%d)\n", idx);
8832                         goto out_error;
8833                 }
8834                 qdesc->qe_valid = 1;
8835                 qdesc->hdwq = idx;
8836
8837                 /* Save the CPU this EQ is affinitised to */
8838                 eqidx = lpfc_find_eq_handle(phba, idx);
8839                 qdesc->chann = lpfc_find_cpu_handle(phba, eqidx,
8840                                                     LPFC_FIND_BY_EQ);
8841                 phba->sli4_hba.hdwq[idx].hba_eq = qdesc;
8842                 qdesc->last_cpu = qdesc->chann;
8843                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
8844                 list_add(&qdesc->cpu_list, &eqi->list);
8845         }
8846
8847
8848         /* Allocate SCSI SLI4 CQ/WQs */
8849         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8850                 if (lpfc_alloc_fcp_wq_cq(phba, idx))
8851                         goto out_error;
8852         }
8853
8854         /* Allocate NVME SLI4 CQ/WQs */
8855         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8856                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
8857                         if (lpfc_alloc_nvme_wq_cq(phba, idx))
8858                                 goto out_error;
8859                 }
8860
8861                 if (phba->nvmet_support) {
8862                         for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
8863                                 qdesc = lpfc_sli4_queue_alloc(
8864                                                       phba,
8865                                                       LPFC_DEFAULT_PAGE_SIZE,
8866                                                       phba->sli4_hba.cq_esize,
8867                                                       phba->sli4_hba.cq_ecount);
8868                                 if (!qdesc) {
8869                                         lpfc_printf_log(
8870                                                 phba, KERN_ERR, LOG_INIT,
8871                                                 "3142 Failed allocate NVME "
8872                                                 "CQ Set (%d)\n", idx);
8873                                         goto out_error;
8874                                 }
8875                                 qdesc->qe_valid = 1;
8876                                 qdesc->hdwq = idx;
8877                                 qdesc->chann = idx;
8878                                 phba->sli4_hba.nvmet_cqset[idx] = qdesc;
8879                         }
8880                 }
8881         }
8882
8883         /*
8884          * Create Slow Path Completion Queues (CQs)
8885          */
8886
8887         /* Create slow-path Mailbox Command Complete Queue */
8888         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8889                                       phba->sli4_hba.cq_esize,
8890                                       phba->sli4_hba.cq_ecount);
8891         if (!qdesc) {
8892                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8893                                 "0500 Failed allocate slow-path mailbox CQ\n");
8894                 goto out_error;
8895         }
8896         qdesc->qe_valid = 1;
8897         phba->sli4_hba.mbx_cq = qdesc;
8898
8899         /* Create slow-path ELS Complete Queue */
8900         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8901                                       phba->sli4_hba.cq_esize,
8902                                       phba->sli4_hba.cq_ecount);
8903         if (!qdesc) {
8904                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8905                                 "0501 Failed allocate slow-path ELS CQ\n");
8906                 goto out_error;
8907         }
8908         qdesc->qe_valid = 1;
8909         qdesc->chann = 0;
8910         phba->sli4_hba.els_cq = qdesc;
8911
8912
8913         /*
8914          * Create Slow Path Work Queues (WQs)
8915          */
8916
8917         /* Create Mailbox Command Queue */
8918
8919         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8920                                       phba->sli4_hba.mq_esize,
8921                                       phba->sli4_hba.mq_ecount);
8922         if (!qdesc) {
8923                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8924                                 "0505 Failed allocate slow-path MQ\n");
8925                 goto out_error;
8926         }
8927         qdesc->chann = 0;
8928         phba->sli4_hba.mbx_wq = qdesc;
8929
8930         /*
8931          * Create ELS Work Queues
8932          */
8933
8934         /* Create slow-path ELS Work Queue */
8935         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8936                                       phba->sli4_hba.wq_esize,
8937                                       phba->sli4_hba.wq_ecount);
8938         if (!qdesc) {
8939                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8940                                 "0504 Failed allocate slow-path ELS WQ\n");
8941                 goto out_error;
8942         }
8943         qdesc->chann = 0;
8944         phba->sli4_hba.els_wq = qdesc;
8945         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8946
8947         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8948                 /* Create NVME LS Complete Queue */
8949                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8950                                               phba->sli4_hba.cq_esize,
8951                                               phba->sli4_hba.cq_ecount);
8952                 if (!qdesc) {
8953                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8954                                         "6079 Failed allocate NVME LS CQ\n");
8955                         goto out_error;
8956                 }
8957                 qdesc->chann = 0;
8958                 qdesc->qe_valid = 1;
8959                 phba->sli4_hba.nvmels_cq = qdesc;
8960
8961                 /* Create NVME LS Work Queue */
8962                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8963                                               phba->sli4_hba.wq_esize,
8964                                               phba->sli4_hba.wq_ecount);
8965                 if (!qdesc) {
8966                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8967                                         "6080 Failed allocate NVME LS WQ\n");
8968                         goto out_error;
8969                 }
8970                 qdesc->chann = 0;
8971                 phba->sli4_hba.nvmels_wq = qdesc;
8972                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
8973         }
8974
8975         /*
8976          * Create Receive Queue (RQ)
8977          */
8978
8979         /* Create Receive Queue for header */
8980         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8981                                       phba->sli4_hba.rq_esize,
8982                                       phba->sli4_hba.rq_ecount);
8983         if (!qdesc) {
8984                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8985                                 "0506 Failed allocate receive HRQ\n");
8986                 goto out_error;
8987         }
8988         phba->sli4_hba.hdr_rq = qdesc;
8989
8990         /* Create Receive Queue for data */
8991         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
8992                                       phba->sli4_hba.rq_esize,
8993                                       phba->sli4_hba.rq_ecount);
8994         if (!qdesc) {
8995                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8996                                 "0507 Failed allocate receive DRQ\n");
8997                 goto out_error;
8998         }
8999         phba->sli4_hba.dat_rq = qdesc;
9000
9001         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
9002             phba->nvmet_support) {
9003                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
9004                         /* Create NVMET Receive Queue for header */
9005                         qdesc = lpfc_sli4_queue_alloc(phba,
9006                                                       LPFC_DEFAULT_PAGE_SIZE,
9007                                                       phba->sli4_hba.rq_esize,
9008                                                       LPFC_NVMET_RQE_DEF_COUNT);
9009                         if (!qdesc) {
9010                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9011                                                 "3146 Failed allocate "
9012                                                 "receive HRQ\n");
9013                                 goto out_error;
9014                         }
9015                         qdesc->hdwq = idx;
9016                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
9017
9018                         /* Only needed for header of RQ pair */
9019                         qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb),
9020                                               GFP_KERNEL);
9021                         if (qdesc->rqbp == NULL) {
9022                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9023                                                 "6131 Failed allocate "
9024                                                 "Header RQBP\n");
9025                                 goto out_error;
9026                         }
9027
9028                         /* Put list in known state in case driver load fails. */
9029                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
9030
9031                         /* Create NVMET Receive Queue for data */
9032                         qdesc = lpfc_sli4_queue_alloc(phba,
9033                                                       LPFC_DEFAULT_PAGE_SIZE,
9034                                                       phba->sli4_hba.rq_esize,
9035                                                       LPFC_NVMET_RQE_DEF_COUNT);
9036                         if (!qdesc) {
9037                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9038                                                 "3156 Failed allocate "
9039                                                 "receive DRQ\n");
9040                                 goto out_error;
9041                         }
9042                         qdesc->hdwq = idx;
9043                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
9044                 }
9045         }
9046
9047 #if defined(BUILD_NVME)
9048         /* Clear NVME stats */
9049         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9050                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9051                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
9052                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
9053                 }
9054         }
9055 #endif
9056
9057         /* Clear SCSI stats */
9058         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
9059                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9060                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
9061                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
9062                 }
9063         }
9064
9065         return 0;
9066
9067 out_error:
9068         lpfc_sli4_queue_destroy(phba);
9069         return -ENOMEM;
9070 }
9071
9072 static inline void
9073 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
9074 {
9075         if (*qp != NULL) {
9076                 lpfc_sli4_queue_free(*qp);
9077                 *qp = NULL;
9078         }
9079 }
9080
9081 static inline void
9082 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
9083 {
9084         int idx;
9085
9086         if (*qs == NULL)
9087                 return;
9088
9089         for (idx = 0; idx < max; idx++)
9090                 __lpfc_sli4_release_queue(&(*qs)[idx]);
9091
9092         kfree(*qs);
9093         *qs = NULL;
9094 }
9095
9096 static inline void
9097 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
9098 {
9099         struct lpfc_sli4_hdw_queue *hdwq;
9100         uint32_t idx;
9101
9102         hdwq = phba->sli4_hba.hdwq;
9103         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
9104                 if (idx < phba->cfg_irq_chann)
9105                         lpfc_sli4_queue_free(hdwq[idx].hba_eq);
9106                 hdwq[idx].hba_eq = NULL;
9107
9108                 lpfc_sli4_queue_free(hdwq[idx].fcp_cq);
9109                 lpfc_sli4_queue_free(hdwq[idx].nvme_cq);
9110                 lpfc_sli4_queue_free(hdwq[idx].fcp_wq);
9111                 lpfc_sli4_queue_free(hdwq[idx].nvme_wq);
9112                 hdwq[idx].fcp_cq = NULL;
9113                 hdwq[idx].nvme_cq = NULL;
9114                 hdwq[idx].fcp_wq = NULL;
9115                 hdwq[idx].nvme_wq = NULL;
9116         }
9117 }
9118
9119 /**
9120  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
9121  * @phba: pointer to lpfc hba data structure.
9122  *
9123  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
9124  * operation.
9125  *
9126  * Return codes
9127  *      0 - successful
9128  *      -ENOMEM - No available memory
9129  *      -EIO - The mailbox failed to complete successfully.
9130  **/
9131 void
9132 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
9133 {
9134         /* Release HBA eqs */
9135         if (phba->sli4_hba.hdwq)
9136                 lpfc_sli4_release_hdwq(phba);
9137
9138         if (phba->nvmet_support) {
9139                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
9140                                          phba->cfg_nvmet_mrq);
9141
9142                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
9143                                          phba->cfg_nvmet_mrq);
9144                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
9145                                          phba->cfg_nvmet_mrq);
9146         }
9147
9148         /* Release mailbox command work queue */
9149         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
9150
9151         /* Release ELS work queue */
9152         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
9153
9154         /* Release ELS work queue */
9155         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
9156
9157         /* Release unsolicited receive queue */
9158         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
9159         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
9160
9161         /* Release ELS complete queue */
9162         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
9163
9164         /* Release NVME LS complete queue */
9165         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
9166
9167         /* Release mailbox command complete queue */
9168         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
9169
9170         /* Everything on this list has been freed */
9171         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
9172 }
9173
9174 int
9175 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
9176 {
9177         struct lpfc_rqb *rqbp;
9178         struct lpfc_dmabuf *h_buf;
9179         struct rqb_dmabuf *rqb_buffer;
9180
9181         rqbp = rq->rqbp;
9182         while (!list_empty(&rqbp->rqb_buffer_list)) {
9183                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
9184                                  struct lpfc_dmabuf, list);
9185
9186                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
9187                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
9188                 rqbp->buffer_count--;
9189         }
9190         return 1;
9191 }
9192
9193 static int
9194 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
9195         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
9196         int qidx, uint32_t qtype)
9197 {
9198         struct lpfc_sli_ring *pring;
9199         int rc;
9200
9201         if (!eq || !cq || !wq) {
9202                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9203                         "6085 Fast-path %s (%d) not allocated\n",
9204                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
9205                 return -ENOMEM;
9206         }
9207
9208         /* create the Cq first */
9209         rc = lpfc_cq_create(phba, cq, eq,
9210                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
9211         if (rc) {
9212                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9213                         "6086 Failed setup of CQ (%d), rc = 0x%x\n",
9214                         qidx, (uint32_t)rc);
9215                 return rc;
9216         }
9217
9218         if (qtype != LPFC_MBOX) {
9219                 /* Setup cq_map for fast lookup */
9220                 if (cq_map)
9221                         *cq_map = cq->queue_id;
9222
9223                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9224                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
9225                         qidx, cq->queue_id, qidx, eq->queue_id);
9226
9227                 /* create the wq */
9228                 rc = lpfc_wq_create(phba, wq, cq, qtype);
9229                 if (rc) {
9230                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9231                                 "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n",
9232                                 qidx, (uint32_t)rc);
9233                         /* no need to tear down cq - caller will do so */
9234                         return rc;
9235                 }
9236
9237                 /* Bind this CQ/WQ to the NVME ring */
9238                 pring = wq->pring;
9239                 pring->sli.sli4.wqp = (void *)wq;
9240                 cq->pring = pring;
9241
9242                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9243                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
9244                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
9245         } else {
9246                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
9247                 if (rc) {
9248                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9249                                 "0539 Failed setup of slow-path MQ: "
9250                                 "rc = 0x%x\n", rc);
9251                         /* no need to tear down cq - caller will do so */
9252                         return rc;
9253                 }
9254
9255                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9256                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
9257                         phba->sli4_hba.mbx_wq->queue_id,
9258                         phba->sli4_hba.mbx_cq->queue_id);
9259         }
9260
9261         return 0;
9262 }
9263
9264 /**
9265  * lpfc_setup_cq_lookup - Setup the CQ lookup table
9266  * @phba: pointer to lpfc hba data structure.
9267  *
9268  * This routine will populate the cq_lookup table by all
9269  * available CQ queue_id's.
9270  **/
9271 void
9272 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
9273 {
9274         struct lpfc_queue *eq, *childq;
9275         struct lpfc_sli4_hdw_queue *qp;
9276         int qidx;
9277
9278         qp = phba->sli4_hba.hdwq;
9279         memset(phba->sli4_hba.cq_lookup, 0,
9280                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
9281         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9282                 eq = qp[qidx].hba_eq;
9283                 if (!eq)
9284                         continue;
9285                 list_for_each_entry(childq, &eq->child_list, list) {
9286                         if (childq->queue_id > phba->sli4_hba.cq_max)
9287                                 continue;
9288                         if ((childq->subtype == LPFC_FCP) ||
9289                             (childq->subtype == LPFC_NVME))
9290                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
9291                                         childq;
9292                 }
9293         }
9294 }
9295
9296 /**
9297  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
9298  * @phba: pointer to lpfc hba data structure.
9299  *
9300  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
9301  * operation.
9302  *
9303  * Return codes
9304  *      0 - successful
9305  *      -ENOMEM - No available memory
9306  *      -EIO - The mailbox failed to complete successfully.
9307  **/
9308 int
9309 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
9310 {
9311         uint32_t shdr_status, shdr_add_status;
9312         union lpfc_sli4_cfg_shdr *shdr;
9313         struct lpfc_sli4_hdw_queue *qp;
9314         LPFC_MBOXQ_t *mboxq;
9315         int qidx;
9316         uint32_t length, usdelay;
9317         int rc = -ENOMEM;
9318
9319         /* Check for dual-ULP support */
9320         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9321         if (!mboxq) {
9322                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9323                                 "3249 Unable to allocate memory for "
9324                                 "QUERY_FW_CFG mailbox command\n");
9325                 return -ENOMEM;
9326         }
9327         length = (sizeof(struct lpfc_mbx_query_fw_config) -
9328                   sizeof(struct lpfc_sli4_cfg_mhdr));
9329         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9330                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
9331                          length, LPFC_SLI4_MBX_EMBED);
9332
9333         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9334
9335         shdr = (union lpfc_sli4_cfg_shdr *)
9336                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9337         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9338         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9339         if (shdr_status || shdr_add_status || rc) {
9340                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9341                                 "3250 QUERY_FW_CFG mailbox failed with status "
9342                                 "x%x add_status x%x, mbx status x%x\n",
9343                                 shdr_status, shdr_add_status, rc);
9344                 if (rc != MBX_TIMEOUT)
9345                         mempool_free(mboxq, phba->mbox_mem_pool);
9346                 rc = -ENXIO;
9347                 goto out_error;
9348         }
9349
9350         phba->sli4_hba.fw_func_mode =
9351                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
9352         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
9353         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
9354         phba->sli4_hba.physical_port =
9355                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
9356         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9357                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
9358                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
9359                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
9360
9361         if (rc != MBX_TIMEOUT)
9362                 mempool_free(mboxq, phba->mbox_mem_pool);
9363
9364         /*
9365          * Set up HBA Event Queues (EQs)
9366          */
9367         qp = phba->sli4_hba.hdwq;
9368
9369         /* Set up HBA event queue */
9370         if (!qp) {
9371                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9372                                 "3147 Fast-path EQs not allocated\n");
9373                 rc = -ENOMEM;
9374                 goto out_error;
9375         }
9376         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
9377                 if (!qp[qidx].hba_eq) {
9378                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9379                                         "0522 Fast-path EQ (%d) not "
9380                                         "allocated\n", qidx);
9381                         rc = -ENOMEM;
9382                         goto out_destroy;
9383                 }
9384                 rc = lpfc_eq_create(phba, qp[qidx].hba_eq,
9385                                     phba->cfg_fcp_imax);
9386                 if (rc) {
9387                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9388                                         "0523 Failed setup of fast-path EQ "
9389                                         "(%d), rc = 0x%x\n", qidx,
9390                                         (uint32_t)rc);
9391                         goto out_destroy;
9392                 }
9393                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9394                                 "2584 HBA EQ setup: queue[%d]-id=%d\n", qidx,
9395                                 qp[qidx].hba_eq->queue_id);
9396         }
9397
9398         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9399                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9400                         rc = lpfc_create_wq_cq(phba,
9401                                         qp[qidx].hba_eq,
9402                                         qp[qidx].nvme_cq,
9403                                         qp[qidx].nvme_wq,
9404                                         &phba->sli4_hba.hdwq[qidx].nvme_cq_map,
9405                                         qidx, LPFC_NVME);
9406                         if (rc) {
9407                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9408                                         "6123 Failed to setup fastpath "
9409                                         "NVME WQ/CQ (%d), rc = 0x%x\n",
9410                                         qidx, (uint32_t)rc);
9411                                 goto out_destroy;
9412                         }
9413                 }
9414         }
9415
9416         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9417                 rc = lpfc_create_wq_cq(phba,
9418                                        qp[qidx].hba_eq,
9419                                        qp[qidx].fcp_cq,
9420                                        qp[qidx].fcp_wq,
9421                                        &phba->sli4_hba.hdwq[qidx].fcp_cq_map,
9422                                        qidx, LPFC_FCP);
9423                 if (rc) {
9424                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9425                                         "0535 Failed to setup fastpath "
9426                                         "FCP WQ/CQ (%d), rc = 0x%x\n",
9427                                         qidx, (uint32_t)rc);
9428                         goto out_destroy;
9429                 }
9430         }
9431
9432         /*
9433          * Set up Slow Path Complete Queues (CQs)
9434          */
9435
9436         /* Set up slow-path MBOX CQ/MQ */
9437
9438         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
9439                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9440                                 "0528 %s not allocated\n",
9441                                 phba->sli4_hba.mbx_cq ?
9442                                 "Mailbox WQ" : "Mailbox CQ");
9443                 rc = -ENOMEM;
9444                 goto out_destroy;
9445         }
9446
9447         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9448                                phba->sli4_hba.mbx_cq,
9449                                phba->sli4_hba.mbx_wq,
9450                                NULL, 0, LPFC_MBOX);
9451         if (rc) {
9452                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9453                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
9454                         (uint32_t)rc);
9455                 goto out_destroy;
9456         }
9457         if (phba->nvmet_support) {
9458                 if (!phba->sli4_hba.nvmet_cqset) {
9459                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9460                                         "3165 Fast-path NVME CQ Set "
9461                                         "array not allocated\n");
9462                         rc = -ENOMEM;
9463                         goto out_destroy;
9464                 }
9465                 if (phba->cfg_nvmet_mrq > 1) {
9466                         rc = lpfc_cq_create_set(phba,
9467                                         phba->sli4_hba.nvmet_cqset,
9468                                         qp,
9469                                         LPFC_WCQ, LPFC_NVMET);
9470                         if (rc) {
9471                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9472                                                 "3164 Failed setup of NVME CQ "
9473                                                 "Set, rc = 0x%x\n",
9474                                                 (uint32_t)rc);
9475                                 goto out_destroy;
9476                         }
9477                 } else {
9478                         /* Set up NVMET Receive Complete Queue */
9479                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
9480                                             qp[0].hba_eq,
9481                                             LPFC_WCQ, LPFC_NVMET);
9482                         if (rc) {
9483                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9484                                                 "6089 Failed setup NVMET CQ: "
9485                                                 "rc = 0x%x\n", (uint32_t)rc);
9486                                 goto out_destroy;
9487                         }
9488                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
9489
9490                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9491                                         "6090 NVMET CQ setup: cq-id=%d, "
9492                                         "parent eq-id=%d\n",
9493                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
9494                                         qp[0].hba_eq->queue_id);
9495                 }
9496         }
9497
9498         /* Set up slow-path ELS WQ/CQ */
9499         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
9500                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9501                                 "0530 ELS %s not allocated\n",
9502                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
9503                 rc = -ENOMEM;
9504                 goto out_destroy;
9505         }
9506         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9507                                phba->sli4_hba.els_cq,
9508                                phba->sli4_hba.els_wq,
9509                                NULL, 0, LPFC_ELS);
9510         if (rc) {
9511                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9512                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
9513                                 (uint32_t)rc);
9514                 goto out_destroy;
9515         }
9516         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9517                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
9518                         phba->sli4_hba.els_wq->queue_id,
9519                         phba->sli4_hba.els_cq->queue_id);
9520
9521         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
9522                 /* Set up NVME LS Complete Queue */
9523                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
9524                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9525                                         "6091 LS %s not allocated\n",
9526                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
9527                         rc = -ENOMEM;
9528                         goto out_destroy;
9529                 }
9530                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
9531                                        phba->sli4_hba.nvmels_cq,
9532                                        phba->sli4_hba.nvmels_wq,
9533                                        NULL, 0, LPFC_NVME_LS);
9534                 if (rc) {
9535                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9536                                         "0526 Failed setup of NVVME LS WQ/CQ: "
9537                                         "rc = 0x%x\n", (uint32_t)rc);
9538                         goto out_destroy;
9539                 }
9540
9541                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9542                                 "6096 ELS WQ setup: wq-id=%d, "
9543                                 "parent cq-id=%d\n",
9544                                 phba->sli4_hba.nvmels_wq->queue_id,
9545                                 phba->sli4_hba.nvmels_cq->queue_id);
9546         }
9547
9548         /*
9549          * Create NVMET Receive Queue (RQ)
9550          */
9551         if (phba->nvmet_support) {
9552                 if ((!phba->sli4_hba.nvmet_cqset) ||
9553                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
9554                     (!phba->sli4_hba.nvmet_mrq_data)) {
9555                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9556                                         "6130 MRQ CQ Queues not "
9557                                         "allocated\n");
9558                         rc = -ENOMEM;
9559                         goto out_destroy;
9560                 }
9561                 if (phba->cfg_nvmet_mrq > 1) {
9562                         rc = lpfc_mrq_create(phba,
9563                                              phba->sli4_hba.nvmet_mrq_hdr,
9564                                              phba->sli4_hba.nvmet_mrq_data,
9565                                              phba->sli4_hba.nvmet_cqset,
9566                                              LPFC_NVMET);
9567                         if (rc) {
9568                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9569                                                 "6098 Failed setup of NVMET "
9570                                                 "MRQ: rc = 0x%x\n",
9571                                                 (uint32_t)rc);
9572                                 goto out_destroy;
9573                         }
9574
9575                 } else {
9576                         rc = lpfc_rq_create(phba,
9577                                             phba->sli4_hba.nvmet_mrq_hdr[0],
9578                                             phba->sli4_hba.nvmet_mrq_data[0],
9579                                             phba->sli4_hba.nvmet_cqset[0],
9580                                             LPFC_NVMET);
9581                         if (rc) {
9582                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9583                                                 "6057 Failed setup of NVMET "
9584                                                 "Receive Queue: rc = 0x%x\n",
9585                                                 (uint32_t)rc);
9586                                 goto out_destroy;
9587                         }
9588
9589                         lpfc_printf_log(
9590                                 phba, KERN_INFO, LOG_INIT,
9591                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
9592                                 "dat-rq-id=%d parent cq-id=%d\n",
9593                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
9594                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
9595                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
9596
9597                 }
9598         }
9599
9600         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
9601                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9602                                 "0540 Receive Queue not allocated\n");
9603                 rc = -ENOMEM;
9604                 goto out_destroy;
9605         }
9606
9607         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
9608                             phba->sli4_hba.els_cq, LPFC_USOL);
9609         if (rc) {
9610                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9611                                 "0541 Failed setup of Receive Queue: "
9612                                 "rc = 0x%x\n", (uint32_t)rc);
9613                 goto out_destroy;
9614         }
9615
9616         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9617                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
9618                         "parent cq-id=%d\n",
9619                         phba->sli4_hba.hdr_rq->queue_id,
9620                         phba->sli4_hba.dat_rq->queue_id,
9621                         phba->sli4_hba.els_cq->queue_id);
9622
9623         if (phba->cfg_fcp_imax)
9624                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
9625         else
9626                 usdelay = 0;
9627
9628         for (qidx = 0; qidx < phba->cfg_irq_chann;
9629              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
9630                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
9631                                          usdelay);
9632
9633         if (phba->sli4_hba.cq_max) {
9634                 kfree(phba->sli4_hba.cq_lookup);
9635                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
9636                         sizeof(struct lpfc_queue *), GFP_KERNEL);
9637                 if (!phba->sli4_hba.cq_lookup) {
9638                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9639                                         "0549 Failed setup of CQ Lookup table: "
9640                                         "size 0x%x\n", phba->sli4_hba.cq_max);
9641                         rc = -ENOMEM;
9642                         goto out_destroy;
9643                 }
9644                 lpfc_setup_cq_lookup(phba);
9645         }
9646         return 0;
9647
9648 out_destroy:
9649         lpfc_sli4_queue_unset(phba);
9650 out_error:
9651         return rc;
9652 }
9653
9654 /**
9655  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
9656  * @phba: pointer to lpfc hba data structure.
9657  *
9658  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
9659  * operation.
9660  *
9661  * Return codes
9662  *      0 - successful
9663  *      -ENOMEM - No available memory
9664  *      -EIO - The mailbox failed to complete successfully.
9665  **/
9666 void
9667 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
9668 {
9669         struct lpfc_sli4_hdw_queue *qp;
9670         int qidx;
9671
9672         /* Unset mailbox command work queue */
9673         if (phba->sli4_hba.mbx_wq)
9674                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
9675
9676         /* Unset NVME LS work queue */
9677         if (phba->sli4_hba.nvmels_wq)
9678                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
9679
9680         /* Unset ELS work queue */
9681         if (phba->sli4_hba.els_wq)
9682                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
9683
9684         /* Unset unsolicited receive queue */
9685         if (phba->sli4_hba.hdr_rq)
9686                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
9687                                 phba->sli4_hba.dat_rq);
9688
9689         /* Unset mailbox command complete queue */
9690         if (phba->sli4_hba.mbx_cq)
9691                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
9692
9693         /* Unset ELS complete queue */
9694         if (phba->sli4_hba.els_cq)
9695                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
9696
9697         /* Unset NVME LS complete queue */
9698         if (phba->sli4_hba.nvmels_cq)
9699                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
9700
9701         if (phba->nvmet_support) {
9702                 /* Unset NVMET MRQ queue */
9703                 if (phba->sli4_hba.nvmet_mrq_hdr) {
9704                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9705                                 lpfc_rq_destroy(
9706                                         phba,
9707                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
9708                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
9709                 }
9710
9711                 /* Unset NVMET CQ Set complete queue */
9712                 if (phba->sli4_hba.nvmet_cqset) {
9713                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
9714                                 lpfc_cq_destroy(
9715                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
9716                 }
9717         }
9718
9719         /* Unset fast-path SLI4 queues */
9720         if (phba->sli4_hba.hdwq) {
9721                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
9722                         qp = &phba->sli4_hba.hdwq[qidx];
9723                         lpfc_wq_destroy(phba, qp->fcp_wq);
9724                         lpfc_wq_destroy(phba, qp->nvme_wq);
9725                         lpfc_cq_destroy(phba, qp->fcp_cq);
9726                         lpfc_cq_destroy(phba, qp->nvme_cq);
9727                         if (qidx < phba->cfg_irq_chann)
9728                                 lpfc_eq_destroy(phba, qp->hba_eq);
9729                 }
9730         }
9731
9732         kfree(phba->sli4_hba.cq_lookup);
9733         phba->sli4_hba.cq_lookup = NULL;
9734         phba->sli4_hba.cq_max = 0;
9735 }
9736
9737 /**
9738  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
9739  * @phba: pointer to lpfc hba data structure.
9740  *
9741  * This routine is invoked to allocate and set up a pool of completion queue
9742  * events. The body of the completion queue event is a completion queue entry
9743  * CQE. For now, this pool is used for the interrupt service routine to queue
9744  * the following HBA completion queue events for the worker thread to process:
9745  *   - Mailbox asynchronous events
9746  *   - Receive queue completion unsolicited events
9747  * Later, this can be used for all the slow-path events.
9748  *
9749  * Return codes
9750  *      0 - successful
9751  *      -ENOMEM - No available memory
9752  **/
9753 static int
9754 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
9755 {
9756         struct lpfc_cq_event *cq_event;
9757         int i;
9758
9759         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
9760                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
9761                 if (!cq_event)
9762                         goto out_pool_create_fail;
9763                 list_add_tail(&cq_event->list,
9764                               &phba->sli4_hba.sp_cqe_event_pool);
9765         }
9766         return 0;
9767
9768 out_pool_create_fail:
9769         lpfc_sli4_cq_event_pool_destroy(phba);
9770         return -ENOMEM;
9771 }
9772
9773 /**
9774  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
9775  * @phba: pointer to lpfc hba data structure.
9776  *
9777  * This routine is invoked to free the pool of completion queue events at
9778  * driver unload time. Note that, it is the responsibility of the driver
9779  * cleanup routine to free all the outstanding completion-queue events
9780  * allocated from this pool back into the pool before invoking this routine
9781  * to destroy the pool.
9782  **/
9783 static void
9784 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
9785 {
9786         struct lpfc_cq_event *cq_event, *next_cq_event;
9787
9788         list_for_each_entry_safe(cq_event, next_cq_event,
9789                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
9790                 list_del(&cq_event->list);
9791                 kfree(cq_event);
9792         }
9793 }
9794
9795 /**
9796  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9797  * @phba: pointer to lpfc hba data structure.
9798  *
9799  * This routine is the lock free version of the API invoked to allocate a
9800  * completion-queue event from the free pool.
9801  *
9802  * Return: Pointer to the newly allocated completion-queue event if successful
9803  *         NULL otherwise.
9804  **/
9805 struct lpfc_cq_event *
9806 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9807 {
9808         struct lpfc_cq_event *cq_event = NULL;
9809
9810         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
9811                          struct lpfc_cq_event, list);
9812         return cq_event;
9813 }
9814
9815 /**
9816  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
9817  * @phba: pointer to lpfc hba data structure.
9818  *
9819  * This routine is the lock version of the API invoked to allocate a
9820  * completion-queue event from the free pool.
9821  *
9822  * Return: Pointer to the newly allocated completion-queue event if successful
9823  *         NULL otherwise.
9824  **/
9825 struct lpfc_cq_event *
9826 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
9827 {
9828         struct lpfc_cq_event *cq_event;
9829         unsigned long iflags;
9830
9831         spin_lock_irqsave(&phba->hbalock, iflags);
9832         cq_event = __lpfc_sli4_cq_event_alloc(phba);
9833         spin_unlock_irqrestore(&phba->hbalock, iflags);
9834         return cq_event;
9835 }
9836
9837 /**
9838  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9839  * @phba: pointer to lpfc hba data structure.
9840  * @cq_event: pointer to the completion queue event to be freed.
9841  *
9842  * This routine is the lock free version of the API invoked to release a
9843  * completion-queue event back into the free pool.
9844  **/
9845 void
9846 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9847                              struct lpfc_cq_event *cq_event)
9848 {
9849         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
9850 }
9851
9852 /**
9853  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
9854  * @phba: pointer to lpfc hba data structure.
9855  * @cq_event: pointer to the completion queue event to be freed.
9856  *
9857  * This routine is the lock version of the API invoked to release a
9858  * completion-queue event back into the free pool.
9859  **/
9860 void
9861 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
9862                            struct lpfc_cq_event *cq_event)
9863 {
9864         unsigned long iflags;
9865         spin_lock_irqsave(&phba->hbalock, iflags);
9866         __lpfc_sli4_cq_event_release(phba, cq_event);
9867         spin_unlock_irqrestore(&phba->hbalock, iflags);
9868 }
9869
9870 /**
9871  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
9872  * @phba: pointer to lpfc hba data structure.
9873  *
9874  * This routine is to free all the pending completion-queue events to the
9875  * back into the free pool for device reset.
9876  **/
9877 static void
9878 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
9879 {
9880         LIST_HEAD(cqelist);
9881         struct lpfc_cq_event *cqe;
9882         unsigned long iflags;
9883
9884         /* Retrieve all the pending WCQEs from pending WCQE lists */
9885         spin_lock_irqsave(&phba->hbalock, iflags);
9886         /* Pending FCP XRI abort events */
9887         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9888                          &cqelist);
9889         /* Pending ELS XRI abort events */
9890         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9891                          &cqelist);
9892         /* Pending asynnc events */
9893         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
9894                          &cqelist);
9895         spin_unlock_irqrestore(&phba->hbalock, iflags);
9896
9897         while (!list_empty(&cqelist)) {
9898                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
9899                 lpfc_sli4_cq_event_release(phba, cqe);
9900         }
9901 }
9902
9903 /**
9904  * lpfc_pci_function_reset - Reset pci function.
9905  * @phba: pointer to lpfc hba data structure.
9906  *
9907  * This routine is invoked to request a PCI function reset. It will destroys
9908  * all resources assigned to the PCI function which originates this request.
9909  *
9910  * Return codes
9911  *      0 - successful
9912  *      -ENOMEM - No available memory
9913  *      -EIO - The mailbox failed to complete successfully.
9914  **/
9915 int
9916 lpfc_pci_function_reset(struct lpfc_hba *phba)
9917 {
9918         LPFC_MBOXQ_t *mboxq;
9919         uint32_t rc = 0, if_type;
9920         uint32_t shdr_status, shdr_add_status;
9921         uint32_t rdy_chk;
9922         uint32_t port_reset = 0;
9923         union lpfc_sli4_cfg_shdr *shdr;
9924         struct lpfc_register reg_data;
9925         uint16_t devid;
9926
9927         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9928         switch (if_type) {
9929         case LPFC_SLI_INTF_IF_TYPE_0:
9930                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
9931                                                        GFP_KERNEL);
9932                 if (!mboxq) {
9933                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9934                                         "0494 Unable to allocate memory for "
9935                                         "issuing SLI_FUNCTION_RESET mailbox "
9936                                         "command\n");
9937                         return -ENOMEM;
9938                 }
9939
9940                 /* Setup PCI function reset mailbox-ioctl command */
9941                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9942                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
9943                                  LPFC_SLI4_MBX_EMBED);
9944                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9945                 shdr = (union lpfc_sli4_cfg_shdr *)
9946                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
9947                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9948                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
9949                                          &shdr->response);
9950                 if (rc != MBX_TIMEOUT)
9951                         mempool_free(mboxq, phba->mbox_mem_pool);
9952                 if (shdr_status || shdr_add_status || rc) {
9953                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9954                                         "0495 SLI_FUNCTION_RESET mailbox "
9955                                         "failed with status x%x add_status x%x,"
9956                                         " mbx status x%x\n",
9957                                         shdr_status, shdr_add_status, rc);
9958                         rc = -ENXIO;
9959                 }
9960                 break;
9961         case LPFC_SLI_INTF_IF_TYPE_2:
9962         case LPFC_SLI_INTF_IF_TYPE_6:
9963 wait:
9964                 /*
9965                  * Poll the Port Status Register and wait for RDY for
9966                  * up to 30 seconds. If the port doesn't respond, treat
9967                  * it as an error.
9968                  */
9969                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
9970                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
9971                                 STATUSregaddr, &reg_data.word0)) {
9972                                 rc = -ENODEV;
9973                                 goto out;
9974                         }
9975                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
9976                                 break;
9977                         msleep(20);
9978                 }
9979
9980                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
9981                         phba->work_status[0] = readl(
9982                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
9983                         phba->work_status[1] = readl(
9984                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
9985                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9986                                         "2890 Port not ready, port status reg "
9987                                         "0x%x error 1=0x%x, error 2=0x%x\n",
9988                                         reg_data.word0,
9989                                         phba->work_status[0],
9990                                         phba->work_status[1]);
9991                         rc = -ENODEV;
9992                         goto out;
9993                 }
9994
9995                 if (!port_reset) {
9996                         /*
9997                          * Reset the port now
9998                          */
9999                         reg_data.word0 = 0;
10000                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
10001                                LPFC_SLIPORT_LITTLE_ENDIAN);
10002                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
10003                                LPFC_SLIPORT_INIT_PORT);
10004                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
10005                                CTRLregaddr);
10006                         /* flush */
10007                         pci_read_config_word(phba->pcidev,
10008                                              PCI_DEVICE_ID, &devid);
10009
10010                         port_reset = 1;
10011                         msleep(20);
10012                         goto wait;
10013                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
10014                         rc = -ENODEV;
10015                         goto out;
10016                 }
10017                 break;
10018
10019         case LPFC_SLI_INTF_IF_TYPE_1:
10020         default:
10021                 break;
10022         }
10023
10024 out:
10025         /* Catch the not-ready port failure after a port reset. */
10026         if (rc) {
10027                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10028                                 "3317 HBA not functional: IP Reset Failed "
10029                                 "try: echo fw_reset > board_mode\n");
10030                 rc = -ENODEV;
10031         }
10032
10033         return rc;
10034 }
10035
10036 /**
10037  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
10038  * @phba: pointer to lpfc hba data structure.
10039  *
10040  * This routine is invoked to set up the PCI device memory space for device
10041  * with SLI-4 interface spec.
10042  *
10043  * Return codes
10044  *      0 - successful
10045  *      other values - error
10046  **/
10047 static int
10048 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
10049 {
10050         struct pci_dev *pdev = phba->pcidev;
10051         unsigned long bar0map_len, bar1map_len, bar2map_len;
10052         int error = -ENODEV;
10053         uint32_t if_type;
10054
10055         if (!pdev)
10056                 return error;
10057
10058         /* Set the device DMA mask size */
10059         if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) ||
10060             dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
10061                 return error;
10062
10063         /*
10064          * The BARs and register set definitions and offset locations are
10065          * dependent on the if_type.
10066          */
10067         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
10068                                   &phba->sli4_hba.sli_intf.word0)) {
10069                 return error;
10070         }
10071
10072         /* There is no SLI3 failback for SLI4 devices. */
10073         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
10074             LPFC_SLI_INTF_VALID) {
10075                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10076                                 "2894 SLI_INTF reg contents invalid "
10077                                 "sli_intf reg 0x%x\n",
10078                                 phba->sli4_hba.sli_intf.word0);
10079                 return error;
10080         }
10081
10082         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10083         /*
10084          * Get the bus address of SLI4 device Bar regions and the
10085          * number of bytes required by each mapping. The mapping of the
10086          * particular PCI BARs regions is dependent on the type of
10087          * SLI4 device.
10088          */
10089         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
10090                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
10091                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
10092
10093                 /*
10094                  * Map SLI4 PCI Config Space Register base to a kernel virtual
10095                  * addr
10096                  */
10097                 phba->sli4_hba.conf_regs_memmap_p =
10098                         ioremap(phba->pci_bar0_map, bar0map_len);
10099                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10100                         dev_printk(KERN_ERR, &pdev->dev,
10101                                    "ioremap failed for SLI4 PCI config "
10102                                    "registers.\n");
10103                         goto out;
10104                 }
10105                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
10106                 /* Set up BAR0 PCI config space register memory map */
10107                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10108         } else {
10109                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
10110                 bar0map_len = pci_resource_len(pdev, 1);
10111                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10112                         dev_printk(KERN_ERR, &pdev->dev,
10113                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
10114                         goto out;
10115                 }
10116                 phba->sli4_hba.conf_regs_memmap_p =
10117                                 ioremap(phba->pci_bar0_map, bar0map_len);
10118                 if (!phba->sli4_hba.conf_regs_memmap_p) {
10119                         dev_printk(KERN_ERR, &pdev->dev,
10120                                 "ioremap failed for SLI4 PCI config "
10121                                 "registers.\n");
10122                         goto out;
10123                 }
10124                 lpfc_sli4_bar0_register_memmap(phba, if_type);
10125         }
10126
10127         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10128                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
10129                         /*
10130                          * Map SLI4 if type 0 HBA Control Register base to a
10131                          * kernel virtual address and setup the registers.
10132                          */
10133                         phba->pci_bar1_map = pci_resource_start(pdev,
10134                                                                 PCI_64BIT_BAR2);
10135                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10136                         phba->sli4_hba.ctrl_regs_memmap_p =
10137                                         ioremap(phba->pci_bar1_map,
10138                                                 bar1map_len);
10139                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
10140                                 dev_err(&pdev->dev,
10141                                            "ioremap failed for SLI4 HBA "
10142                                             "control registers.\n");
10143                                 error = -ENOMEM;
10144                                 goto out_iounmap_conf;
10145                         }
10146                         phba->pci_bar2_memmap_p =
10147                                          phba->sli4_hba.ctrl_regs_memmap_p;
10148                         lpfc_sli4_bar1_register_memmap(phba, if_type);
10149                 } else {
10150                         error = -ENOMEM;
10151                         goto out_iounmap_conf;
10152                 }
10153         }
10154
10155         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
10156             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
10157                 /*
10158                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
10159                  * virtual address and setup the registers.
10160                  */
10161                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
10162                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
10163                 phba->sli4_hba.drbl_regs_memmap_p =
10164                                 ioremap(phba->pci_bar1_map, bar1map_len);
10165                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
10166                         dev_err(&pdev->dev,
10167                            "ioremap failed for SLI4 HBA doorbell registers.\n");
10168                         goto out_iounmap_conf;
10169                 }
10170                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
10171                 lpfc_sli4_bar1_register_memmap(phba, if_type);
10172         }
10173
10174         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
10175                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10176                         /*
10177                          * Map SLI4 if type 0 HBA Doorbell Register base to
10178                          * a kernel virtual address and setup the registers.
10179                          */
10180                         phba->pci_bar2_map = pci_resource_start(pdev,
10181                                                                 PCI_64BIT_BAR4);
10182                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10183                         phba->sli4_hba.drbl_regs_memmap_p =
10184                                         ioremap(phba->pci_bar2_map,
10185                                                 bar2map_len);
10186                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
10187                                 dev_err(&pdev->dev,
10188                                            "ioremap failed for SLI4 HBA"
10189                                            " doorbell registers.\n");
10190                                 error = -ENOMEM;
10191                                 goto out_iounmap_ctrl;
10192                         }
10193                         phba->pci_bar4_memmap_p =
10194                                         phba->sli4_hba.drbl_regs_memmap_p;
10195                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
10196                         if (error)
10197                                 goto out_iounmap_all;
10198                 } else {
10199                         error = -ENOMEM;
10200                         goto out_iounmap_all;
10201                 }
10202         }
10203
10204         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
10205             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
10206                 /*
10207                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
10208                  * virtual address and setup the registers.
10209                  */
10210                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
10211                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
10212                 phba->sli4_hba.dpp_regs_memmap_p =
10213                                 ioremap(phba->pci_bar2_map, bar2map_len);
10214                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
10215                         dev_err(&pdev->dev,
10216                            "ioremap failed for SLI4 HBA dpp registers.\n");
10217                         goto out_iounmap_ctrl;
10218                 }
10219                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
10220         }
10221
10222         /* Set up the EQ/CQ register handeling functions now */
10223         switch (if_type) {
10224         case LPFC_SLI_INTF_IF_TYPE_0:
10225         case LPFC_SLI_INTF_IF_TYPE_2:
10226                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
10227                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
10228                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
10229                 break;
10230         case LPFC_SLI_INTF_IF_TYPE_6:
10231                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
10232                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
10233                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
10234                 break;
10235         default:
10236                 break;
10237         }
10238
10239         return 0;
10240
10241 out_iounmap_all:
10242         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10243 out_iounmap_ctrl:
10244         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10245 out_iounmap_conf:
10246         iounmap(phba->sli4_hba.conf_regs_memmap_p);
10247 out:
10248         return error;
10249 }
10250
10251 /**
10252  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
10253  * @phba: pointer to lpfc hba data structure.
10254  *
10255  * This routine is invoked to unset the PCI device memory space for device
10256  * with SLI-4 interface spec.
10257  **/
10258 static void
10259 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
10260 {
10261         uint32_t if_type;
10262         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10263
10264         switch (if_type) {
10265         case LPFC_SLI_INTF_IF_TYPE_0:
10266                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10267                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
10268                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10269                 break;
10270         case LPFC_SLI_INTF_IF_TYPE_2:
10271                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10272                 break;
10273         case LPFC_SLI_INTF_IF_TYPE_6:
10274                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
10275                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
10276                 break;
10277         case LPFC_SLI_INTF_IF_TYPE_1:
10278         default:
10279                 dev_printk(KERN_ERR, &phba->pcidev->dev,
10280                            "FATAL - unsupported SLI4 interface type - %d\n",
10281                            if_type);
10282                 break;
10283         }
10284 }
10285
10286 /**
10287  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
10288  * @phba: pointer to lpfc hba data structure.
10289  *
10290  * This routine is invoked to enable the MSI-X interrupt vectors to device
10291  * with SLI-3 interface specs.
10292  *
10293  * Return codes
10294  *   0 - successful
10295  *   other values - error
10296  **/
10297 static int
10298 lpfc_sli_enable_msix(struct lpfc_hba *phba)
10299 {
10300         int rc;
10301         LPFC_MBOXQ_t *pmb;
10302
10303         /* Set up MSI-X multi-message vectors */
10304         rc = pci_alloc_irq_vectors(phba->pcidev,
10305                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
10306         if (rc < 0) {
10307                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10308                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
10309                 goto vec_fail_out;
10310         }
10311
10312         /*
10313          * Assign MSI-X vectors to interrupt handlers
10314          */
10315
10316         /* vector-0 is associated to slow-path handler */
10317         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
10318                          &lpfc_sli_sp_intr_handler, 0,
10319                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
10320         if (rc) {
10321                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10322                                 "0421 MSI-X slow-path request_irq failed "
10323                                 "(%d)\n", rc);
10324                 goto msi_fail_out;
10325         }
10326
10327         /* vector-1 is associated to fast-path handler */
10328         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
10329                          &lpfc_sli_fp_intr_handler, 0,
10330                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
10331
10332         if (rc) {
10333                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10334                                 "0429 MSI-X fast-path request_irq failed "
10335                                 "(%d)\n", rc);
10336                 goto irq_fail_out;
10337         }
10338
10339         /*
10340          * Configure HBA MSI-X attention conditions to messages
10341          */
10342         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10343
10344         if (!pmb) {
10345                 rc = -ENOMEM;
10346                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10347                                 "0474 Unable to allocate memory for issuing "
10348                                 "MBOX_CONFIG_MSI command\n");
10349                 goto mem_fail_out;
10350         }
10351         rc = lpfc_config_msi(phba, pmb);
10352         if (rc)
10353                 goto mbx_fail_out;
10354         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10355         if (rc != MBX_SUCCESS) {
10356                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
10357                                 "0351 Config MSI mailbox command failed, "
10358                                 "mbxCmd x%x, mbxStatus x%x\n",
10359                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
10360                 goto mbx_fail_out;
10361         }
10362
10363         /* Free memory allocated for mailbox command */
10364         mempool_free(pmb, phba->mbox_mem_pool);
10365         return rc;
10366
10367 mbx_fail_out:
10368         /* Free memory allocated for mailbox command */
10369         mempool_free(pmb, phba->mbox_mem_pool);
10370
10371 mem_fail_out:
10372         /* free the irq already requested */
10373         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
10374
10375 irq_fail_out:
10376         /* free the irq already requested */
10377         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
10378
10379 msi_fail_out:
10380         /* Unconfigure MSI-X capability structure */
10381         pci_free_irq_vectors(phba->pcidev);
10382
10383 vec_fail_out:
10384         return rc;
10385 }
10386
10387 /**
10388  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
10389  * @phba: pointer to lpfc hba data structure.
10390  *
10391  * This routine is invoked to enable the MSI interrupt mode to device with
10392  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
10393  * enable the MSI vector. The device driver is responsible for calling the
10394  * request_irq() to register MSI vector with a interrupt the handler, which
10395  * is done in this function.
10396  *
10397  * Return codes
10398  *      0 - successful
10399  *      other values - error
10400  */
10401 static int
10402 lpfc_sli_enable_msi(struct lpfc_hba *phba)
10403 {
10404         int rc;
10405
10406         rc = pci_enable_msi(phba->pcidev);
10407         if (!rc)
10408                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10409                                 "0462 PCI enable MSI mode success.\n");
10410         else {
10411                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10412                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
10413                 return rc;
10414         }
10415
10416         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10417                          0, LPFC_DRIVER_NAME, phba);
10418         if (rc) {
10419                 pci_disable_msi(phba->pcidev);
10420                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10421                                 "0478 MSI request_irq failed (%d)\n", rc);
10422         }
10423         return rc;
10424 }
10425
10426 /**
10427  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
10428  * @phba: pointer to lpfc hba data structure.
10429  *
10430  * This routine is invoked to enable device interrupt and associate driver's
10431  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
10432  * spec. Depends on the interrupt mode configured to the driver, the driver
10433  * will try to fallback from the configured interrupt mode to an interrupt
10434  * mode which is supported by the platform, kernel, and device in the order
10435  * of:
10436  * MSI-X -> MSI -> IRQ.
10437  *
10438  * Return codes
10439  *   0 - successful
10440  *   other values - error
10441  **/
10442 static uint32_t
10443 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10444 {
10445         uint32_t intr_mode = LPFC_INTR_ERROR;
10446         int retval;
10447
10448         if (cfg_mode == 2) {
10449                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
10450                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
10451                 if (!retval) {
10452                         /* Now, try to enable MSI-X interrupt mode */
10453                         retval = lpfc_sli_enable_msix(phba);
10454                         if (!retval) {
10455                                 /* Indicate initialization to MSI-X mode */
10456                                 phba->intr_type = MSIX;
10457                                 intr_mode = 2;
10458                         }
10459                 }
10460         }
10461
10462         /* Fallback to MSI if MSI-X initialization failed */
10463         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10464                 retval = lpfc_sli_enable_msi(phba);
10465                 if (!retval) {
10466                         /* Indicate initialization to MSI mode */
10467                         phba->intr_type = MSI;
10468                         intr_mode = 1;
10469                 }
10470         }
10471
10472         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10473         if (phba->intr_type == NONE) {
10474                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
10475                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10476                 if (!retval) {
10477                         /* Indicate initialization to INTx mode */
10478                         phba->intr_type = INTx;
10479                         intr_mode = 0;
10480                 }
10481         }
10482         return intr_mode;
10483 }
10484
10485 /**
10486  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
10487  * @phba: pointer to lpfc hba data structure.
10488  *
10489  * This routine is invoked to disable device interrupt and disassociate the
10490  * driver's interrupt handler(s) from interrupt vector(s) to device with
10491  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
10492  * release the interrupt vector(s) for the message signaled interrupt.
10493  **/
10494 static void
10495 lpfc_sli_disable_intr(struct lpfc_hba *phba)
10496 {
10497         int nr_irqs, i;
10498
10499         if (phba->intr_type == MSIX)
10500                 nr_irqs = LPFC_MSIX_VECTORS;
10501         else
10502                 nr_irqs = 1;
10503
10504         for (i = 0; i < nr_irqs; i++)
10505                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
10506         pci_free_irq_vectors(phba->pcidev);
10507
10508         /* Reset interrupt management states */
10509         phba->intr_type = NONE;
10510         phba->sli.slistat.sli_intr = 0;
10511 }
10512
10513 /**
10514  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified EQ
10515  * @phba: pointer to lpfc hba data structure.
10516  * @id: EQ vector index or Hardware Queue index
10517  * @match: LPFC_FIND_BY_EQ = match by EQ
10518  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
10519  */
10520 static uint16_t
10521 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
10522 {
10523         struct lpfc_vector_map_info *cpup;
10524         int cpu;
10525
10526         /* Find the desired phys_id for the specified EQ */
10527         for_each_present_cpu(cpu) {
10528                 cpup = &phba->sli4_hba.cpu_map[cpu];
10529                 if ((match == LPFC_FIND_BY_EQ) &&
10530                     (cpup->irq != LPFC_VECTOR_MAP_EMPTY) &&
10531                     (cpup->eq == id))
10532                         return cpu;
10533                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
10534                         return cpu;
10535         }
10536         return 0;
10537 }
10538
10539 /**
10540  * lpfc_find_eq_handle - Find the EQ that corresponds to the specified
10541  *                       Hardware Queue
10542  * @phba: pointer to lpfc hba data structure.
10543  * @hdwq: Hardware Queue index
10544  */
10545 static uint16_t
10546 lpfc_find_eq_handle(struct lpfc_hba *phba, uint16_t hdwq)
10547 {
10548         struct lpfc_vector_map_info *cpup;
10549         int cpu;
10550
10551         /* Find the desired phys_id for the specified EQ */
10552         for_each_present_cpu(cpu) {
10553                 cpup = &phba->sli4_hba.cpu_map[cpu];
10554                 if (cpup->hdwq == hdwq)
10555                         return cpup->eq;
10556         }
10557         return 0;
10558 }
10559
10560 #ifdef CONFIG_X86
10561 /**
10562  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
10563  * @phba: pointer to lpfc hba data structure.
10564  * @cpu: CPU map index
10565  * @phys_id: CPU package physical id
10566  * @core_id: CPU core id
10567  */
10568 static int
10569 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
10570                 uint16_t phys_id, uint16_t core_id)
10571 {
10572         struct lpfc_vector_map_info *cpup;
10573         int idx;
10574
10575         for_each_present_cpu(idx) {
10576                 cpup = &phba->sli4_hba.cpu_map[idx];
10577                 /* Does the cpup match the one we are looking for */
10578                 if ((cpup->phys_id == phys_id) &&
10579                     (cpup->core_id == core_id) &&
10580                     (cpu != idx))
10581                         return 1;
10582         }
10583         return 0;
10584 }
10585 #endif
10586
10587 /**
10588  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
10589  * @phba: pointer to lpfc hba data structure.
10590  * @vectors: number of msix vectors allocated.
10591  *
10592  * The routine will figure out the CPU affinity assignment for every
10593  * MSI-X vector allocated for the HBA.
10594  * In addition, the CPU to IO channel mapping will be calculated
10595  * and the phba->sli4_hba.cpu_map array will reflect this.
10596  */
10597 static void
10598 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
10599 {
10600         int i, cpu, idx;
10601         int max_phys_id, min_phys_id;
10602         int max_core_id, min_core_id;
10603         struct lpfc_vector_map_info *cpup;
10604         const struct cpumask *maskp;
10605 #ifdef CONFIG_X86
10606         struct cpuinfo_x86 *cpuinfo;
10607 #endif
10608
10609         /* Init cpu_map array */
10610         memset(phba->sli4_hba.cpu_map, 0xff,
10611                (sizeof(struct lpfc_vector_map_info) *
10612                phba->sli4_hba.num_possible_cpu));
10613
10614         max_phys_id = 0;
10615         min_phys_id = 0xffff;
10616         max_core_id = 0;
10617         min_core_id = 0xffff;
10618
10619         /* Update CPU map with physical id and core id of each CPU */
10620         for_each_present_cpu(cpu) {
10621                 cpup = &phba->sli4_hba.cpu_map[cpu];
10622 #ifdef CONFIG_X86
10623                 cpuinfo = &cpu_data(cpu);
10624                 cpup->phys_id = cpuinfo->phys_proc_id;
10625                 cpup->core_id = cpuinfo->cpu_core_id;
10626                 cpup->hyper = lpfc_find_hyper(phba, cpu,
10627                                               cpup->phys_id, cpup->core_id);
10628 #else
10629                 /* No distinction between CPUs for other platforms */
10630                 cpup->phys_id = 0;
10631                 cpup->core_id = cpu;
10632                 cpup->hyper = 0;
10633 #endif
10634
10635                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10636                                 "3328 CPU physid %d coreid %d\n",
10637                                 cpup->phys_id, cpup->core_id);
10638
10639                 if (cpup->phys_id > max_phys_id)
10640                         max_phys_id = cpup->phys_id;
10641                 if (cpup->phys_id < min_phys_id)
10642                         min_phys_id = cpup->phys_id;
10643
10644                 if (cpup->core_id > max_core_id)
10645                         max_core_id = cpup->core_id;
10646                 if (cpup->core_id < min_core_id)
10647                         min_core_id = cpup->core_id;
10648         }
10649
10650         for_each_possible_cpu(i) {
10651                 struct lpfc_eq_intr_info *eqi =
10652                         per_cpu_ptr(phba->sli4_hba.eq_info, i);
10653
10654                 INIT_LIST_HEAD(&eqi->list);
10655                 eqi->icnt = 0;
10656         }
10657
10658         for (idx = 0; idx <  phba->cfg_irq_chann; idx++) {
10659                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
10660                 if (!maskp)
10661                         continue;
10662
10663                 for_each_cpu_and(cpu, maskp, cpu_present_mask) {
10664                         cpup = &phba->sli4_hba.cpu_map[cpu];
10665                         cpup->eq = idx;
10666                         cpup->hdwq = idx;
10667                         cpup->irq = pci_irq_vector(phba->pcidev, idx);
10668
10669                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10670                                         "3336 Set Affinity: CPU %d "
10671                                         "hdwq %d irq %d\n",
10672                                         cpu, cpup->hdwq, cpup->irq);
10673                 }
10674         }
10675         return;
10676 }
10677
10678 /**
10679  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
10680  * @phba: pointer to lpfc hba data structure.
10681  *
10682  * This routine is invoked to enable the MSI-X interrupt vectors to device
10683  * with SLI-4 interface spec.
10684  *
10685  * Return codes
10686  * 0 - successful
10687  * other values - error
10688  **/
10689 static int
10690 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
10691 {
10692         int vectors, rc, index;
10693         char *name;
10694
10695         /* Set up MSI-X multi-message vectors */
10696         vectors = phba->cfg_irq_chann;
10697
10698         rc = pci_alloc_irq_vectors(phba->pcidev,
10699                                 1,
10700                                 vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY);
10701         if (rc < 0) {
10702                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10703                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
10704                 goto vec_fail_out;
10705         }
10706         vectors = rc;
10707
10708         /* Assign MSI-X vectors to interrupt handlers */
10709         for (index = 0; index < vectors; index++) {
10710                 name = phba->sli4_hba.hba_eq_hdl[index].handler_name;
10711                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
10712                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
10713                          LPFC_DRIVER_HANDLER_NAME"%d", index);
10714
10715                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10716                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10717                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
10718                          &lpfc_sli4_hba_intr_handler, 0,
10719                          name,
10720                          &phba->sli4_hba.hba_eq_hdl[index]);
10721                 if (rc) {
10722                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10723                                         "0486 MSI-X fast-path (%d) "
10724                                         "request_irq failed (%d)\n", index, rc);
10725                         goto cfg_fail_out;
10726                 }
10727         }
10728
10729         if (vectors != phba->cfg_irq_chann) {
10730                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10731                                 "3238 Reducing IO channels to match number of "
10732                                 "MSI-X vectors, requested %d got %d\n",
10733                                 phba->cfg_irq_chann, vectors);
10734                 if (phba->cfg_irq_chann > vectors)
10735                         phba->cfg_irq_chann = vectors;
10736                 if (phba->cfg_nvmet_mrq > vectors)
10737                         phba->cfg_nvmet_mrq = vectors;
10738         }
10739
10740         return rc;
10741
10742 cfg_fail_out:
10743         /* free the irq already requested */
10744         for (--index; index >= 0; index--)
10745                 free_irq(pci_irq_vector(phba->pcidev, index),
10746                                 &phba->sli4_hba.hba_eq_hdl[index]);
10747
10748         /* Unconfigure MSI-X capability structure */
10749         pci_free_irq_vectors(phba->pcidev);
10750
10751 vec_fail_out:
10752         return rc;
10753 }
10754
10755 /**
10756  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
10757  * @phba: pointer to lpfc hba data structure.
10758  *
10759  * This routine is invoked to enable the MSI interrupt mode to device with
10760  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
10761  * to enable the MSI vector. The device driver is responsible for calling
10762  * the request_irq() to register MSI vector with a interrupt the handler,
10763  * which is done in this function.
10764  *
10765  * Return codes
10766  *      0 - successful
10767  *      other values - error
10768  **/
10769 static int
10770 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
10771 {
10772         int rc, index;
10773
10774         rc = pci_enable_msi(phba->pcidev);
10775         if (!rc)
10776                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10777                                 "0487 PCI enable MSI mode success.\n");
10778         else {
10779                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10780                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
10781                 return rc;
10782         }
10783
10784         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10785                          0, LPFC_DRIVER_NAME, phba);
10786         if (rc) {
10787                 pci_disable_msi(phba->pcidev);
10788                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10789                                 "0490 MSI request_irq failed (%d)\n", rc);
10790                 return rc;
10791         }
10792
10793         for (index = 0; index < phba->cfg_irq_chann; index++) {
10794                 phba->sli4_hba.hba_eq_hdl[index].idx = index;
10795                 phba->sli4_hba.hba_eq_hdl[index].phba = phba;
10796         }
10797
10798         return 0;
10799 }
10800
10801 /**
10802  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
10803  * @phba: pointer to lpfc hba data structure.
10804  *
10805  * This routine is invoked to enable device interrupt and associate driver's
10806  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
10807  * interface spec. Depends on the interrupt mode configured to the driver,
10808  * the driver will try to fallback from the configured interrupt mode to an
10809  * interrupt mode which is supported by the platform, kernel, and device in
10810  * the order of:
10811  * MSI-X -> MSI -> IRQ.
10812  *
10813  * Return codes
10814  *      0 - successful
10815  *      other values - error
10816  **/
10817 static uint32_t
10818 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
10819 {
10820         uint32_t intr_mode = LPFC_INTR_ERROR;
10821         int retval, idx;
10822
10823         if (cfg_mode == 2) {
10824                 /* Preparation before conf_msi mbox cmd */
10825                 retval = 0;
10826                 if (!retval) {
10827                         /* Now, try to enable MSI-X interrupt mode */
10828                         retval = lpfc_sli4_enable_msix(phba);
10829                         if (!retval) {
10830                                 /* Indicate initialization to MSI-X mode */
10831                                 phba->intr_type = MSIX;
10832                                 intr_mode = 2;
10833                         }
10834                 }
10835         }
10836
10837         /* Fallback to MSI if MSI-X initialization failed */
10838         if (cfg_mode >= 1 && phba->intr_type == NONE) {
10839                 retval = lpfc_sli4_enable_msi(phba);
10840                 if (!retval) {
10841                         /* Indicate initialization to MSI mode */
10842                         phba->intr_type = MSI;
10843                         intr_mode = 1;
10844                 }
10845         }
10846
10847         /* Fallback to INTx if both MSI-X/MSI initalization failed */
10848         if (phba->intr_type == NONE) {
10849                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
10850                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
10851                 if (!retval) {
10852                         struct lpfc_hba_eq_hdl *eqhdl;
10853
10854                         /* Indicate initialization to INTx mode */
10855                         phba->intr_type = INTx;
10856                         intr_mode = 0;
10857
10858                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
10859                                 eqhdl = &phba->sli4_hba.hba_eq_hdl[idx];
10860                                 eqhdl->idx = idx;
10861                                 eqhdl->phba = phba;
10862                         }
10863                 }
10864         }
10865         return intr_mode;
10866 }
10867
10868 /**
10869  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
10870  * @phba: pointer to lpfc hba data structure.
10871  *
10872  * This routine is invoked to disable device interrupt and disassociate
10873  * the driver's interrupt handler(s) from interrupt vector(s) to device
10874  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
10875  * will release the interrupt vector(s) for the message signaled interrupt.
10876  **/
10877 static void
10878 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
10879 {
10880         /* Disable the currently initialized interrupt mode */
10881         if (phba->intr_type == MSIX) {
10882                 int index;
10883
10884                 /* Free up MSI-X multi-message vectors */
10885                 for (index = 0; index < phba->cfg_irq_chann; index++) {
10886                         irq_set_affinity_hint(
10887                                 pci_irq_vector(phba->pcidev, index),
10888                                 NULL);
10889                         free_irq(pci_irq_vector(phba->pcidev, index),
10890                                         &phba->sli4_hba.hba_eq_hdl[index]);
10891                 }
10892         } else {
10893                 free_irq(phba->pcidev->irq, phba);
10894         }
10895
10896         pci_free_irq_vectors(phba->pcidev);
10897
10898         /* Reset interrupt management states */
10899         phba->intr_type = NONE;
10900         phba->sli.slistat.sli_intr = 0;
10901 }
10902
10903 /**
10904  * lpfc_unset_hba - Unset SLI3 hba device initialization
10905  * @phba: pointer to lpfc hba data structure.
10906  *
10907  * This routine is invoked to unset the HBA device initialization steps to
10908  * a device with SLI-3 interface spec.
10909  **/
10910 static void
10911 lpfc_unset_hba(struct lpfc_hba *phba)
10912 {
10913         struct lpfc_vport *vport = phba->pport;
10914         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
10915
10916         spin_lock_irq(shost->host_lock);
10917         vport->load_flag |= FC_UNLOADING;
10918         spin_unlock_irq(shost->host_lock);
10919
10920         kfree(phba->vpi_bmask);
10921         kfree(phba->vpi_ids);
10922
10923         lpfc_stop_hba_timers(phba);
10924
10925         phba->pport->work_port_events = 0;
10926
10927         lpfc_sli_hba_down(phba);
10928
10929         lpfc_sli_brdrestart(phba);
10930
10931         lpfc_sli_disable_intr(phba);
10932
10933         return;
10934 }
10935
10936 /**
10937  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
10938  * @phba: Pointer to HBA context object.
10939  *
10940  * This function is called in the SLI4 code path to wait for completion
10941  * of device's XRIs exchange busy. It will check the XRI exchange busy
10942  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
10943  * that, it will check the XRI exchange busy on outstanding FCP and ELS
10944  * I/Os every 30 seconds, log error message, and wait forever. Only when
10945  * all XRI exchange busy complete, the driver unload shall proceed with
10946  * invoking the function reset ioctl mailbox command to the CNA and the
10947  * the rest of the driver unload resource release.
10948  **/
10949 static void
10950 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
10951 {
10952         struct lpfc_sli4_hdw_queue *qp;
10953         int idx, ccnt, fcnt;
10954         int wait_time = 0;
10955         int io_xri_cmpl = 1;
10956         int nvmet_xri_cmpl = 1;
10957         int fcp_xri_cmpl = 1;
10958         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
10959
10960         /* Driver just aborted IOs during the hba_unset process.  Pause
10961          * here to give the HBA time to complete the IO and get entries
10962          * into the abts lists.
10963          */
10964         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
10965
10966         /* Wait for NVME pending IO to flush back to transport. */
10967         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
10968                 lpfc_nvme_wait_for_io_drain(phba);
10969
10970         ccnt = 0;
10971         fcnt = 0;
10972         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10973                 qp = &phba->sli4_hba.hdwq[idx];
10974                 fcp_xri_cmpl = list_empty(
10975                         &qp->lpfc_abts_scsi_buf_list);
10976                 if (!fcp_xri_cmpl) /* if list is NOT empty */
10977                         fcnt++;
10978                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10979                         io_xri_cmpl = list_empty(
10980                                 &qp->lpfc_abts_nvme_buf_list);
10981                         if (!io_xri_cmpl) /* if list is NOT empty */
10982                                 ccnt++;
10983                 }
10984         }
10985         if (ccnt)
10986                 io_xri_cmpl = 0;
10987         if (fcnt)
10988                 fcp_xri_cmpl = 0;
10989
10990         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10991                 nvmet_xri_cmpl =
10992                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
10993         }
10994
10995         while (!fcp_xri_cmpl || !els_xri_cmpl || !io_xri_cmpl ||
10996                !nvmet_xri_cmpl) {
10997                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
10998                         if (!nvmet_xri_cmpl)
10999                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11000                                                 "6424 NVMET XRI exchange busy "
11001                                                 "wait time: %d seconds.\n",
11002                                                 wait_time/1000);
11003                         if (!io_xri_cmpl)
11004                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11005                                                 "6100 NVME XRI exchange busy "
11006                                                 "wait time: %d seconds.\n",
11007                                                 wait_time/1000);
11008                         if (!fcp_xri_cmpl)
11009                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11010                                                 "2877 FCP XRI exchange busy "
11011                                                 "wait time: %d seconds.\n",
11012                                                 wait_time/1000);
11013                         if (!els_xri_cmpl)
11014                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11015                                                 "2878 ELS XRI exchange busy "
11016                                                 "wait time: %d seconds.\n",
11017                                                 wait_time/1000);
11018                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
11019                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
11020                 } else {
11021                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
11022                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
11023                 }
11024
11025                 ccnt = 0;
11026                 fcnt = 0;
11027                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
11028                         qp = &phba->sli4_hba.hdwq[idx];
11029                         fcp_xri_cmpl = list_empty(
11030                                 &qp->lpfc_abts_scsi_buf_list);
11031                         if (!fcp_xri_cmpl) /* if list is NOT empty */
11032                                 fcnt++;
11033                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11034                                 io_xri_cmpl = list_empty(
11035                                     &qp->lpfc_abts_nvme_buf_list);
11036                                 if (!io_xri_cmpl) /* if list is NOT empty */
11037                                         ccnt++;
11038                         }
11039                 }
11040                 if (ccnt)
11041                         io_xri_cmpl = 0;
11042                 if (fcnt)
11043                         fcp_xri_cmpl = 0;
11044
11045                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11046                         nvmet_xri_cmpl = list_empty(
11047                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
11048                 }
11049                 els_xri_cmpl =
11050                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
11051
11052         }
11053 }
11054
11055 /**
11056  * lpfc_sli4_hba_unset - Unset the fcoe hba
11057  * @phba: Pointer to HBA context object.
11058  *
11059  * This function is called in the SLI4 code path to reset the HBA's FCoE
11060  * function. The caller is not required to hold any lock. This routine
11061  * issues PCI function reset mailbox command to reset the FCoE function.
11062  * At the end of the function, it calls lpfc_hba_down_post function to
11063  * free any pending commands.
11064  **/
11065 static void
11066 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
11067 {
11068         int wait_cnt = 0;
11069         LPFC_MBOXQ_t *mboxq;
11070         struct pci_dev *pdev = phba->pcidev;
11071
11072         lpfc_stop_hba_timers(phba);
11073         if (phba->pport)
11074                 phba->sli4_hba.intr_enable = 0;
11075
11076         /*
11077          * Gracefully wait out the potential current outstanding asynchronous
11078          * mailbox command.
11079          */
11080
11081         /* First, block any pending async mailbox command from posted */
11082         spin_lock_irq(&phba->hbalock);
11083         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11084         spin_unlock_irq(&phba->hbalock);
11085         /* Now, trying to wait it out if we can */
11086         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11087                 msleep(10);
11088                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
11089                         break;
11090         }
11091         /* Forcefully release the outstanding mailbox command if timed out */
11092         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
11093                 spin_lock_irq(&phba->hbalock);
11094                 mboxq = phba->sli.mbox_active;
11095                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
11096                 __lpfc_mbox_cmpl_put(phba, mboxq);
11097                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11098                 phba->sli.mbox_active = NULL;
11099                 spin_unlock_irq(&phba->hbalock);
11100         }
11101
11102         /* Abort all iocbs associated with the hba */
11103         lpfc_sli_hba_iocb_abort(phba);
11104
11105         /* Wait for completion of device XRI exchange busy */
11106         lpfc_sli4_xri_exchange_busy_wait(phba);
11107
11108         /* Disable PCI subsystem interrupt */
11109         lpfc_sli4_disable_intr(phba);
11110
11111         /* Disable SR-IOV if enabled */
11112         if (phba->cfg_sriov_nr_virtfn)
11113                 pci_disable_sriov(pdev);
11114
11115         /* Stop kthread signal shall trigger work_done one more time */
11116         kthread_stop(phba->worker_thread);
11117
11118         /* Disable FW logging to host memory */
11119         lpfc_ras_stop_fwlog(phba);
11120
11121         /* Unset the queues shared with the hardware then release all
11122          * allocated resources.
11123          */
11124         lpfc_sli4_queue_unset(phba);
11125         lpfc_sli4_queue_destroy(phba);
11126
11127         /* Reset SLI4 HBA FCoE function */
11128         lpfc_pci_function_reset(phba);
11129
11130         /* Free RAS DMA memory */
11131         if (phba->ras_fwlog.ras_enabled)
11132                 lpfc_sli4_ras_dma_free(phba);
11133
11134         /* Stop the SLI4 device port */
11135         if (phba->pport)
11136                 phba->pport->work_port_events = 0;
11137 }
11138
11139  /**
11140  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
11141  * @phba: Pointer to HBA context object.
11142  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11143  *
11144  * This function is called in the SLI4 code path to read the port's
11145  * sli4 capabilities.
11146  *
11147  * This function may be be called from any context that can block-wait
11148  * for the completion.  The expectation is that this routine is called
11149  * typically from probe_one or from the online routine.
11150  **/
11151 int
11152 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11153 {
11154         int rc;
11155         struct lpfc_mqe *mqe;
11156         struct lpfc_pc_sli4_params *sli4_params;
11157         uint32_t mbox_tmo;
11158
11159         rc = 0;
11160         mqe = &mboxq->u.mqe;
11161
11162         /* Read the port's SLI4 Parameters port capabilities */
11163         lpfc_pc_sli4_params(mboxq);
11164         if (!phba->sli4_hba.intr_enable)
11165                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11166         else {
11167                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11168                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11169         }
11170
11171         if (unlikely(rc))
11172                 return 1;
11173
11174         sli4_params = &phba->sli4_hba.pc_sli4_params;
11175         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
11176         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
11177         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
11178         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
11179                                              &mqe->un.sli4_params);
11180         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
11181                                              &mqe->un.sli4_params);
11182         sli4_params->proto_types = mqe->un.sli4_params.word3;
11183         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
11184         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
11185         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
11186         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
11187         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
11188         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
11189         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
11190         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
11191         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
11192         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
11193         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
11194         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
11195         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
11196         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
11197         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
11198         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
11199         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
11200         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
11201         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
11202         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
11203
11204         /* Make sure that sge_supp_len can be handled by the driver */
11205         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11206                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11207
11208         return rc;
11209 }
11210
11211 /**
11212  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
11213  * @phba: Pointer to HBA context object.
11214  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
11215  *
11216  * This function is called in the SLI4 code path to read the port's
11217  * sli4 capabilities.
11218  *
11219  * This function may be be called from any context that can block-wait
11220  * for the completion.  The expectation is that this routine is called
11221  * typically from probe_one or from the online routine.
11222  **/
11223 int
11224 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11225 {
11226         int rc;
11227         struct lpfc_mqe *mqe = &mboxq->u.mqe;
11228         struct lpfc_pc_sli4_params *sli4_params;
11229         uint32_t mbox_tmo;
11230         int length;
11231         bool exp_wqcq_pages = true;
11232         struct lpfc_sli4_parameters *mbx_sli4_parameters;
11233
11234         /*
11235          * By default, the driver assumes the SLI4 port requires RPI
11236          * header postings.  The SLI4_PARAM response will correct this
11237          * assumption.
11238          */
11239         phba->sli4_hba.rpi_hdrs_in_use = 1;
11240
11241         /* Read the port's SLI4 Config Parameters */
11242         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
11243                   sizeof(struct lpfc_sli4_cfg_mhdr));
11244         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11245                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
11246                          length, LPFC_SLI4_MBX_EMBED);
11247         if (!phba->sli4_hba.intr_enable)
11248                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11249         else {
11250                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
11251                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11252         }
11253         if (unlikely(rc))
11254                 return rc;
11255         sli4_params = &phba->sli4_hba.pc_sli4_params;
11256         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
11257         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
11258         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
11259         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
11260         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
11261                                              mbx_sli4_parameters);
11262         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
11263                                              mbx_sli4_parameters);
11264         if (bf_get(cfg_phwq, mbx_sli4_parameters))
11265                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
11266         else
11267                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
11268         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
11269         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
11270         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
11271         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
11272         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
11273         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
11274         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
11275         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
11276         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
11277         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
11278         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
11279         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
11280                                             mbx_sli4_parameters);
11281         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
11282         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
11283                                            mbx_sli4_parameters);
11284         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
11285         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
11286         phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
11287                               bf_get(cfg_xib, mbx_sli4_parameters));
11288
11289         if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) ||
11290             !phba->nvme_support) {
11291                 phba->nvme_support = 0;
11292                 phba->nvmet_support = 0;
11293                 phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF;
11294                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
11295                                 "6101 Disabling NVME support: "
11296                                 "Not supported by firmware: %d %d\n",
11297                                 bf_get(cfg_nvme, mbx_sli4_parameters),
11298                                 bf_get(cfg_xib, mbx_sli4_parameters));
11299
11300                 /* If firmware doesn't support NVME, just use SCSI support */
11301                 if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
11302                         return -ENODEV;
11303                 phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
11304         }
11305
11306         /* Only embed PBDE for if_type 6, PBDE support requires xib be set */
11307         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
11308             LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters)))
11309                 phba->cfg_enable_pbde = 0;
11310
11311         /*
11312          * To support Suppress Response feature we must satisfy 3 conditions.
11313          * lpfc_suppress_rsp module parameter must be set (default).
11314          * In SLI4-Parameters Descriptor:
11315          * Extended Inline Buffers (XIB) must be supported.
11316          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
11317          * (double negative).
11318          */
11319         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
11320             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
11321                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
11322         else
11323                 phba->cfg_suppress_rsp = 0;
11324
11325         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
11326                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
11327
11328         /* Make sure that sge_supp_len can be handled by the driver */
11329         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
11330                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
11331
11332         /*
11333          * Check whether the adapter supports an embedded copy of the
11334          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
11335          * to use this option, 128-byte WQEs must be used.
11336          */
11337         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
11338                 phba->fcp_embed_io = 1;
11339         else
11340                 phba->fcp_embed_io = 0;
11341
11342         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
11343                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
11344                         bf_get(cfg_xib, mbx_sli4_parameters),
11345                         phba->cfg_enable_pbde,
11346                         phba->fcp_embed_io, phba->nvme_support,
11347                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
11348
11349         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
11350             LPFC_SLI_INTF_IF_TYPE_2) &&
11351             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
11352                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
11353                 exp_wqcq_pages = false;
11354
11355         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
11356             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
11357             exp_wqcq_pages &&
11358             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
11359                 phba->enab_exp_wqcq_pages = 1;
11360         else
11361                 phba->enab_exp_wqcq_pages = 0;
11362         /*
11363          * Check if the SLI port supports MDS Diagnostics
11364          */
11365         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
11366                 phba->mds_diags_support = 1;
11367         else
11368                 phba->mds_diags_support = 0;
11369
11370         return 0;
11371 }
11372
11373 /**
11374  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
11375  * @pdev: pointer to PCI device
11376  * @pid: pointer to PCI device identifier
11377  *
11378  * This routine is to be called to attach a device with SLI-3 interface spec
11379  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
11380  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
11381  * information of the device and driver to see if the driver state that it can
11382  * support this kind of device. If the match is successful, the driver core
11383  * invokes this routine. If this routine determines it can claim the HBA, it
11384  * does all the initialization that it needs to do to handle the HBA properly.
11385  *
11386  * Return code
11387  *      0 - driver can claim the device
11388  *      negative value - driver can not claim the device
11389  **/
11390 static int
11391 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
11392 {
11393         struct lpfc_hba   *phba;
11394         struct lpfc_vport *vport = NULL;
11395         struct Scsi_Host  *shost = NULL;
11396         int error;
11397         uint32_t cfg_mode, intr_mode;
11398
11399         /* Allocate memory for HBA structure */
11400         phba = lpfc_hba_alloc(pdev);
11401         if (!phba)
11402                 return -ENOMEM;
11403
11404         /* Perform generic PCI device enabling operation */
11405         error = lpfc_enable_pci_dev(phba);
11406         if (error)
11407                 goto out_free_phba;
11408
11409         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
11410         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
11411         if (error)
11412                 goto out_disable_pci_dev;
11413
11414         /* Set up SLI-3 specific device PCI memory space */
11415         error = lpfc_sli_pci_mem_setup(phba);
11416         if (error) {
11417                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11418                                 "1402 Failed to set up pci memory space.\n");
11419                 goto out_disable_pci_dev;
11420         }
11421
11422         /* Set up SLI-3 specific device driver resources */
11423         error = lpfc_sli_driver_resource_setup(phba);
11424         if (error) {
11425                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11426                                 "1404 Failed to set up driver resource.\n");
11427                 goto out_unset_pci_mem_s3;
11428         }
11429
11430         /* Initialize and populate the iocb list per host */
11431
11432         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
11433         if (error) {
11434                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11435                                 "1405 Failed to initialize iocb list.\n");
11436                 goto out_unset_driver_resource_s3;
11437         }
11438
11439         /* Set up common device driver resources */
11440         error = lpfc_setup_driver_resource_phase2(phba);
11441         if (error) {
11442                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11443                                 "1406 Failed to set up driver resource.\n");
11444                 goto out_free_iocb_list;
11445         }
11446
11447         /* Get the default values for Model Name and Description */
11448         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
11449
11450         /* Create SCSI host to the physical port */
11451         error = lpfc_create_shost(phba);
11452         if (error) {
11453                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11454                                 "1407 Failed to create scsi host.\n");
11455                 goto out_unset_driver_resource;
11456         }
11457
11458         /* Configure sysfs attributes */
11459         vport = phba->pport;
11460         error = lpfc_alloc_sysfs_attr(vport);
11461         if (error) {
11462                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11463                                 "1476 Failed to allocate sysfs attr\n");
11464                 goto out_destroy_shost;
11465         }
11466
11467         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
11468         /* Now, trying to enable interrupt and bring up the device */
11469         cfg_mode = phba->cfg_use_msi;
11470         while (true) {
11471                 /* Put device to a known state before enabling interrupt */
11472                 lpfc_stop_port(phba);
11473                 /* Configure and enable interrupt */
11474                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
11475                 if (intr_mode == LPFC_INTR_ERROR) {
11476                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11477                                         "0431 Failed to enable interrupt.\n");
11478                         error = -ENODEV;
11479                         goto out_free_sysfs_attr;
11480                 }
11481                 /* SLI-3 HBA setup */
11482                 if (lpfc_sli_hba_setup(phba)) {
11483                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11484                                         "1477 Failed to set up hba\n");
11485                         error = -ENODEV;
11486                         goto out_remove_device;
11487                 }
11488
11489                 /* Wait 50ms for the interrupts of previous mailbox commands */
11490                 msleep(50);
11491                 /* Check active interrupts on message signaled interrupts */
11492                 if (intr_mode == 0 ||
11493                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
11494                         /* Log the current active interrupt mode */
11495                         phba->intr_mode = intr_mode;
11496                         lpfc_log_intr_mode(phba, intr_mode);
11497                         break;
11498                 } else {
11499                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11500                                         "0447 Configure interrupt mode (%d) "
11501                                         "failed active interrupt test.\n",
11502                                         intr_mode);
11503                         /* Disable the current interrupt mode */
11504                         lpfc_sli_disable_intr(phba);
11505                         /* Try next level of interrupt mode */
11506                         cfg_mode = --intr_mode;
11507                 }
11508         }
11509
11510         /* Perform post initialization setup */
11511         lpfc_post_init_setup(phba);
11512
11513         /* Check if there are static vports to be created. */
11514         lpfc_create_static_vport(phba);
11515
11516         return 0;
11517
11518 out_remove_device:
11519         lpfc_unset_hba(phba);
11520 out_free_sysfs_attr:
11521         lpfc_free_sysfs_attr(vport);
11522 out_destroy_shost:
11523         lpfc_destroy_shost(phba);
11524 out_unset_driver_resource:
11525         lpfc_unset_driver_resource_phase2(phba);
11526 out_free_iocb_list:
11527         lpfc_free_iocb_list(phba);
11528 out_unset_driver_resource_s3:
11529         lpfc_sli_driver_resource_unset(phba);
11530 out_unset_pci_mem_s3:
11531         lpfc_sli_pci_mem_unset(phba);
11532 out_disable_pci_dev:
11533         lpfc_disable_pci_dev(phba);
11534         if (shost)
11535                 scsi_host_put(shost);
11536 out_free_phba:
11537         lpfc_hba_free(phba);
11538         return error;
11539 }
11540
11541 /**
11542  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
11543  * @pdev: pointer to PCI device
11544  *
11545  * This routine is to be called to disattach a device with SLI-3 interface
11546  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
11547  * removed from PCI bus, it performs all the necessary cleanup for the HBA
11548  * device to be removed from the PCI subsystem properly.
11549  **/
11550 static void
11551 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
11552 {
11553         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
11554         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
11555         struct lpfc_vport **vports;
11556         struct lpfc_hba   *phba = vport->phba;
11557         int i;
11558
11559         spin_lock_irq(&phba->hbalock);
11560         vport->load_flag |= FC_UNLOADING;
11561         spin_unlock_irq(&phba->hbalock);
11562
11563         lpfc_free_sysfs_attr(vport);
11564
11565         /* Release all the vports against this physical port */
11566         vports = lpfc_create_vport_work_array(phba);
11567         if (vports != NULL)
11568                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
11569                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
11570                                 continue;
11571                         fc_vport_terminate(vports[i]->fc_vport);
11572                 }
11573         lpfc_destroy_vport_work_array(phba, vports);
11574
11575         /* Remove FC host and then SCSI host with the physical port */
11576         fc_remove_host(shost);
11577         scsi_remove_host(shost);
11578
11579         lpfc_cleanup(vport);
11580
11581         /*
11582          * Bring down the SLI Layer. This step disable all interrupts,
11583          * clears the rings, discards all mailbox commands, and resets
11584          * the HBA.
11585          */
11586
11587         /* HBA interrupt will be disabled after this call */
11588         lpfc_sli_hba_down(phba);
11589         /* Stop kthread signal shall trigger work_done one more time */
11590         kthread_stop(phba->worker_thread);
11591         /* Final cleanup of txcmplq and reset the HBA */
11592         lpfc_sli_brdrestart(phba);
11593
11594         kfree(phba->vpi_bmask);
11595         kfree(phba->vpi_ids);
11596
11597         lpfc_stop_hba_timers(phba);
11598         spin_lock_irq(&phba->port_list_lock);
11599         list_del_init(&vport->listentry);
11600         spin_unlock_irq(&phba->port_list_lock);
11601
11602         lpfc_debugfs_terminate(vport);
11603
11604         /* Disable SR-IOV if enabled */
11605         if (phba->cfg_sriov_nr_virtfn)
11606                 pci_disable_sriov(pdev);
11607
11608         /* Disable interrupt */
11609         lpfc_sli_disable_intr(phba);
11610
11611         scsi_host_put(shost);
11612
11613         /*
11614          * Call scsi_free before mem_free since scsi bufs are released to their
11615          * corresponding pools here.
11616          */
11617         lpfc_scsi_free(phba);
11618         lpfc_free_iocb_list(phba);
11619
11620         lpfc_mem_free_all(phba);
11621
11622         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
11623                           phba->hbqslimp.virt, phba->hbqslimp.phys);
11624
11625         /* Free resources associated with SLI2 interface */
11626         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
11627                           phba->slim2p.virt, phba->slim2p.phys);
11628
11629         /* unmap adapter SLIM and Control Registers */
11630         iounmap(phba->ctrl_regs_memmap_p);
11631         iounmap(phba->slim_memmap_p);
11632
11633         lpfc_hba_free(phba);
11634
11635         pci_release_mem_regions(pdev);
11636         pci_disable_device(pdev);
11637 }
11638
11639 /**
11640  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
11641  * @pdev: pointer to PCI device
11642  * @msg: power management message
11643  *
11644  * This routine is to be called from the kernel's PCI subsystem to support
11645  * system Power Management (PM) to device with SLI-3 interface spec. When
11646  * PM invokes this method, it quiesces the device by stopping the driver's
11647  * worker thread for the device, turning off device's interrupt and DMA,
11648  * and bring the device offline. Note that as the driver implements the
11649  * minimum PM requirements to a power-aware driver's PM support for the
11650  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
11651  * to the suspend() method call will be treated as SUSPEND and the driver will
11652  * fully reinitialize its device during resume() method call, the driver will
11653  * set device to PCI_D3hot state in PCI config space instead of setting it
11654  * according to the @msg provided by the PM.
11655  *
11656  * Return code
11657  *      0 - driver suspended the device
11658  *      Error otherwise
11659  **/
11660 static int
11661 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
11662 {
11663         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11664         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11665
11666         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11667                         "0473 PCI device Power Management suspend.\n");
11668
11669         /* Bring down the device */
11670         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11671         lpfc_offline(phba);
11672         kthread_stop(phba->worker_thread);
11673
11674         /* Disable interrupt from device */
11675         lpfc_sli_disable_intr(phba);
11676
11677         /* Save device state to PCI config space */
11678         pci_save_state(pdev);
11679         pci_set_power_state(pdev, PCI_D3hot);
11680
11681         return 0;
11682 }
11683
11684 /**
11685  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
11686  * @pdev: pointer to PCI device
11687  *
11688  * This routine is to be called from the kernel's PCI subsystem to support
11689  * system Power Management (PM) to device with SLI-3 interface spec. When PM
11690  * invokes this method, it restores the device's PCI config space state and
11691  * fully reinitializes the device and brings it online. Note that as the
11692  * driver implements the minimum PM requirements to a power-aware driver's
11693  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
11694  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
11695  * driver will fully reinitialize its device during resume() method call,
11696  * the device will be set to PCI_D0 directly in PCI config space before
11697  * restoring the state.
11698  *
11699  * Return code
11700  *      0 - driver suspended the device
11701  *      Error otherwise
11702  **/
11703 static int
11704 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
11705 {
11706         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11707         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11708         uint32_t intr_mode;
11709         int error;
11710
11711         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11712                         "0452 PCI device Power Management resume.\n");
11713
11714         /* Restore device state from PCI config space */
11715         pci_set_power_state(pdev, PCI_D0);
11716         pci_restore_state(pdev);
11717
11718         /*
11719          * As the new kernel behavior of pci_restore_state() API call clears
11720          * device saved_state flag, need to save the restored state again.
11721          */
11722         pci_save_state(pdev);
11723
11724         if (pdev->is_busmaster)
11725                 pci_set_master(pdev);
11726
11727         /* Startup the kernel thread for this host adapter. */
11728         phba->worker_thread = kthread_run(lpfc_do_work, phba,
11729                                         "lpfc_worker_%d", phba->brd_no);
11730         if (IS_ERR(phba->worker_thread)) {
11731                 error = PTR_ERR(phba->worker_thread);
11732                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11733                                 "0434 PM resume failed to start worker "
11734                                 "thread: error=x%x.\n", error);
11735                 return error;
11736         }
11737
11738         /* Configure and enable interrupt */
11739         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11740         if (intr_mode == LPFC_INTR_ERROR) {
11741                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11742                                 "0430 PM resume Failed to enable interrupt\n");
11743                 return -EIO;
11744         } else
11745                 phba->intr_mode = intr_mode;
11746
11747         /* Restart HBA and bring it online */
11748         lpfc_sli_brdrestart(phba);
11749         lpfc_online(phba);
11750
11751         /* Log the current active interrupt mode */
11752         lpfc_log_intr_mode(phba, phba->intr_mode);
11753
11754         return 0;
11755 }
11756
11757 /**
11758  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
11759  * @phba: pointer to lpfc hba data structure.
11760  *
11761  * This routine is called to prepare the SLI3 device for PCI slot recover. It
11762  * aborts all the outstanding SCSI I/Os to the pci device.
11763  **/
11764 static void
11765 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
11766 {
11767         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11768                         "2723 PCI channel I/O abort preparing for recovery\n");
11769
11770         /*
11771          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
11772          * and let the SCSI mid-layer to retry them to recover.
11773          */
11774         lpfc_sli_abort_fcp_rings(phba);
11775 }
11776
11777 /**
11778  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
11779  * @phba: pointer to lpfc hba data structure.
11780  *
11781  * This routine is called to prepare the SLI3 device for PCI slot reset. It
11782  * disables the device interrupt and pci device, and aborts the internal FCP
11783  * pending I/Os.
11784  **/
11785 static void
11786 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
11787 {
11788         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11789                         "2710 PCI channel disable preparing for reset\n");
11790
11791         /* Block any management I/Os to the device */
11792         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
11793
11794         /* Block all SCSI devices' I/Os on the host */
11795         lpfc_scsi_dev_block(phba);
11796
11797         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
11798         lpfc_sli_flush_fcp_rings(phba);
11799
11800         /* stop all timers */
11801         lpfc_stop_hba_timers(phba);
11802
11803         /* Disable interrupt and pci device */
11804         lpfc_sli_disable_intr(phba);
11805         pci_disable_device(phba->pcidev);
11806 }
11807
11808 /**
11809  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
11810  * @phba: pointer to lpfc hba data structure.
11811  *
11812  * This routine is called to prepare the SLI3 device for PCI slot permanently
11813  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
11814  * pending I/Os.
11815  **/
11816 static void
11817 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
11818 {
11819         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11820                         "2711 PCI channel permanent disable for failure\n");
11821         /* Block all SCSI devices' I/Os on the host */
11822         lpfc_scsi_dev_block(phba);
11823
11824         /* stop all timers */
11825         lpfc_stop_hba_timers(phba);
11826
11827         /* Clean up all driver's outstanding SCSI I/Os */
11828         lpfc_sli_flush_fcp_rings(phba);
11829 }
11830
11831 /**
11832  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
11833  * @pdev: pointer to PCI device.
11834  * @state: the current PCI connection state.
11835  *
11836  * This routine is called from the PCI subsystem for I/O error handling to
11837  * device with SLI-3 interface spec. This function is called by the PCI
11838  * subsystem after a PCI bus error affecting this device has been detected.
11839  * When this function is invoked, it will need to stop all the I/Os and
11840  * interrupt(s) to the device. Once that is done, it will return
11841  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
11842  * as desired.
11843  *
11844  * Return codes
11845  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
11846  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11847  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11848  **/
11849 static pci_ers_result_t
11850 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
11851 {
11852         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11853         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11854
11855         switch (state) {
11856         case pci_channel_io_normal:
11857                 /* Non-fatal error, prepare for recovery */
11858                 lpfc_sli_prep_dev_for_recover(phba);
11859                 return PCI_ERS_RESULT_CAN_RECOVER;
11860         case pci_channel_io_frozen:
11861                 /* Fatal error, prepare for slot reset */
11862                 lpfc_sli_prep_dev_for_reset(phba);
11863                 return PCI_ERS_RESULT_NEED_RESET;
11864         case pci_channel_io_perm_failure:
11865                 /* Permanent failure, prepare for device down */
11866                 lpfc_sli_prep_dev_for_perm_failure(phba);
11867                 return PCI_ERS_RESULT_DISCONNECT;
11868         default:
11869                 /* Unknown state, prepare and request slot reset */
11870                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11871                                 "0472 Unknown PCI error state: x%x\n", state);
11872                 lpfc_sli_prep_dev_for_reset(phba);
11873                 return PCI_ERS_RESULT_NEED_RESET;
11874         }
11875 }
11876
11877 /**
11878  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
11879  * @pdev: pointer to PCI device.
11880  *
11881  * This routine is called from the PCI subsystem for error handling to
11882  * device with SLI-3 interface spec. This is called after PCI bus has been
11883  * reset to restart the PCI card from scratch, as if from a cold-boot.
11884  * During the PCI subsystem error recovery, after driver returns
11885  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
11886  * recovery and then call this routine before calling the .resume method
11887  * to recover the device. This function will initialize the HBA device,
11888  * enable the interrupt, but it will just put the HBA to offline state
11889  * without passing any I/O traffic.
11890  *
11891  * Return codes
11892  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11893  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11894  */
11895 static pci_ers_result_t
11896 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
11897 {
11898         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11899         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11900         struct lpfc_sli *psli = &phba->sli;
11901         uint32_t intr_mode;
11902
11903         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
11904         if (pci_enable_device_mem(pdev)) {
11905                 printk(KERN_ERR "lpfc: Cannot re-enable "
11906                         "PCI device after reset.\n");
11907                 return PCI_ERS_RESULT_DISCONNECT;
11908         }
11909
11910         pci_restore_state(pdev);
11911
11912         /*
11913          * As the new kernel behavior of pci_restore_state() API call clears
11914          * device saved_state flag, need to save the restored state again.
11915          */
11916         pci_save_state(pdev);
11917
11918         if (pdev->is_busmaster)
11919                 pci_set_master(pdev);
11920
11921         spin_lock_irq(&phba->hbalock);
11922         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
11923         spin_unlock_irq(&phba->hbalock);
11924
11925         /* Configure and enable interrupt */
11926         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
11927         if (intr_mode == LPFC_INTR_ERROR) {
11928                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11929                                 "0427 Cannot re-enable interrupt after "
11930                                 "slot reset.\n");
11931                 return PCI_ERS_RESULT_DISCONNECT;
11932         } else
11933                 phba->intr_mode = intr_mode;
11934
11935         /* Take device offline, it will perform cleanup */
11936         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11937         lpfc_offline(phba);
11938         lpfc_sli_brdrestart(phba);
11939
11940         /* Log the current active interrupt mode */
11941         lpfc_log_intr_mode(phba, phba->intr_mode);
11942
11943         return PCI_ERS_RESULT_RECOVERED;
11944 }
11945
11946 /**
11947  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
11948  * @pdev: pointer to PCI device
11949  *
11950  * This routine is called from the PCI subsystem for error handling to device
11951  * with SLI-3 interface spec. It is called when kernel error recovery tells
11952  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
11953  * error recovery. After this call, traffic can start to flow from this device
11954  * again.
11955  */
11956 static void
11957 lpfc_io_resume_s3(struct pci_dev *pdev)
11958 {
11959         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11960         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11961
11962         /* Bring device online, it will be no-op for non-fatal error resume */
11963         lpfc_online(phba);
11964 }
11965
11966 /**
11967  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
11968  * @phba: pointer to lpfc hba data structure.
11969  *
11970  * returns the number of ELS/CT IOCBs to reserve
11971  **/
11972 int
11973 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
11974 {
11975         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
11976
11977         if (phba->sli_rev == LPFC_SLI_REV4) {
11978                 if (max_xri <= 100)
11979                         return 10;
11980                 else if (max_xri <= 256)
11981                         return 25;
11982                 else if (max_xri <= 512)
11983                         return 50;
11984                 else if (max_xri <= 1024)
11985                         return 100;
11986                 else if (max_xri <= 1536)
11987                         return 150;
11988                 else if (max_xri <= 2048)
11989                         return 200;
11990                 else
11991                         return 250;
11992         } else
11993                 return 0;
11994 }
11995
11996 /**
11997  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
11998  * @phba: pointer to lpfc hba data structure.
11999  *
12000  * returns the number of ELS/CT + NVMET IOCBs to reserve
12001  **/
12002 int
12003 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
12004 {
12005         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
12006
12007         if (phba->nvmet_support)
12008                 max_xri += LPFC_NVMET_BUF_POST;
12009         return max_xri;
12010 }
12011
12012
12013 static void
12014 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
12015         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
12016         const struct firmware *fw)
12017 {
12018         if ((offset == ADD_STATUS_FW_NOT_SUPPORTED) ||
12019             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC &&
12020              magic_number != MAGIC_NUMER_G6) ||
12021             (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC &&
12022              magic_number != MAGIC_NUMER_G7))
12023                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12024                         "3030 This firmware version is not supported on "
12025                         "this HBA model. Device:%x Magic:%x Type:%x "
12026                         "ID:%x Size %d %zd\n",
12027                         phba->pcidev->device, magic_number, ftype, fid,
12028                         fsize, fw->size);
12029         else
12030                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12031                         "3022 FW Download failed. Device:%x Magic:%x Type:%x "
12032                         "ID:%x Size %d %zd\n",
12033                         phba->pcidev->device, magic_number, ftype, fid,
12034                         fsize, fw->size);
12035 }
12036
12037
12038 /**
12039  * lpfc_write_firmware - attempt to write a firmware image to the port
12040  * @fw: pointer to firmware image returned from request_firmware.
12041  * @phba: pointer to lpfc hba data structure.
12042  *
12043  **/
12044 static void
12045 lpfc_write_firmware(const struct firmware *fw, void *context)
12046 {
12047         struct lpfc_hba *phba = (struct lpfc_hba *)context;
12048         char fwrev[FW_REV_STR_SIZE];
12049         struct lpfc_grp_hdr *image;
12050         struct list_head dma_buffer_list;
12051         int i, rc = 0;
12052         struct lpfc_dmabuf *dmabuf, *next;
12053         uint32_t offset = 0, temp_offset = 0;
12054         uint32_t magic_number, ftype, fid, fsize;
12055
12056         /* It can be null in no-wait mode, sanity check */
12057         if (!fw) {
12058                 rc = -ENXIO;
12059                 goto out;
12060         }
12061         image = (struct lpfc_grp_hdr *)fw->data;
12062
12063         magic_number = be32_to_cpu(image->magic_number);
12064         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
12065         fid = bf_get_be32(lpfc_grp_hdr_id, image);
12066         fsize = be32_to_cpu(image->size);
12067
12068         INIT_LIST_HEAD(&dma_buffer_list);
12069         lpfc_decode_firmware_rev(phba, fwrev, 1);
12070         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
12071                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12072                                 "3023 Updating Firmware, Current Version:%s "
12073                                 "New Version:%s\n",
12074                                 fwrev, image->revision);
12075                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
12076                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
12077                                          GFP_KERNEL);
12078                         if (!dmabuf) {
12079                                 rc = -ENOMEM;
12080                                 goto release_out;
12081                         }
12082                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
12083                                                           SLI4_PAGE_SIZE,
12084                                                           &dmabuf->phys,
12085                                                           GFP_KERNEL);
12086                         if (!dmabuf->virt) {
12087                                 kfree(dmabuf);
12088                                 rc = -ENOMEM;
12089                                 goto release_out;
12090                         }
12091                         list_add_tail(&dmabuf->list, &dma_buffer_list);
12092                 }
12093                 while (offset < fw->size) {
12094                         temp_offset = offset;
12095                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
12096                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
12097                                         memcpy(dmabuf->virt,
12098                                                fw->data + temp_offset,
12099                                                fw->size - temp_offset);
12100                                         temp_offset = fw->size;
12101                                         break;
12102                                 }
12103                                 memcpy(dmabuf->virt, fw->data + temp_offset,
12104                                        SLI4_PAGE_SIZE);
12105                                 temp_offset += SLI4_PAGE_SIZE;
12106                         }
12107                         rc = lpfc_wr_object(phba, &dma_buffer_list,
12108                                     (fw->size - offset), &offset);
12109                         if (rc) {
12110                                 lpfc_log_write_firmware_error(phba, offset,
12111                                         magic_number, ftype, fid, fsize, fw);
12112                                 goto release_out;
12113                         }
12114                 }
12115                 rc = offset;
12116         } else
12117                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12118                                 "3029 Skipped Firmware update, Current "
12119                                 "Version:%s New Version:%s\n",
12120                                 fwrev, image->revision);
12121
12122 release_out:
12123         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
12124                 list_del(&dmabuf->list);
12125                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
12126                                   dmabuf->virt, dmabuf->phys);
12127                 kfree(dmabuf);
12128         }
12129         release_firmware(fw);
12130 out:
12131         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12132                         "3024 Firmware update done: %d.\n", rc);
12133         return;
12134 }
12135
12136 /**
12137  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
12138  * @phba: pointer to lpfc hba data structure.
12139  *
12140  * This routine is called to perform Linux generic firmware upgrade on device
12141  * that supports such feature.
12142  **/
12143 int
12144 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
12145 {
12146         uint8_t file_name[ELX_MODEL_NAME_SIZE];
12147         int ret;
12148         const struct firmware *fw;
12149
12150         /* Only supported on SLI4 interface type 2 for now */
12151         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
12152             LPFC_SLI_INTF_IF_TYPE_2)
12153                 return -EPERM;
12154
12155         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
12156
12157         if (fw_upgrade == INT_FW_UPGRADE) {
12158                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
12159                                         file_name, &phba->pcidev->dev,
12160                                         GFP_KERNEL, (void *)phba,
12161                                         lpfc_write_firmware);
12162         } else if (fw_upgrade == RUN_FW_UPGRADE) {
12163                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
12164                 if (!ret)
12165                         lpfc_write_firmware(fw, (void *)phba);
12166         } else {
12167                 ret = -EINVAL;
12168         }
12169
12170         return ret;
12171 }
12172
12173 /**
12174  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
12175  * @pdev: pointer to PCI device
12176  * @pid: pointer to PCI device identifier
12177  *
12178  * This routine is called from the kernel's PCI subsystem to device with
12179  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12180  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
12181  * information of the device and driver to see if the driver state that it
12182  * can support this kind of device. If the match is successful, the driver
12183  * core invokes this routine. If this routine determines it can claim the HBA,
12184  * it does all the initialization that it needs to do to handle the HBA
12185  * properly.
12186  *
12187  * Return code
12188  *      0 - driver can claim the device
12189  *      negative value - driver can not claim the device
12190  **/
12191 static int
12192 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
12193 {
12194         struct lpfc_hba   *phba;
12195         struct lpfc_vport *vport = NULL;
12196         struct Scsi_Host  *shost = NULL;
12197         int error;
12198         uint32_t cfg_mode, intr_mode;
12199
12200         /* Allocate memory for HBA structure */
12201         phba = lpfc_hba_alloc(pdev);
12202         if (!phba)
12203                 return -ENOMEM;
12204
12205         /* Perform generic PCI device enabling operation */
12206         error = lpfc_enable_pci_dev(phba);
12207         if (error)
12208                 goto out_free_phba;
12209
12210         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
12211         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
12212         if (error)
12213                 goto out_disable_pci_dev;
12214
12215         /* Set up SLI-4 specific device PCI memory space */
12216         error = lpfc_sli4_pci_mem_setup(phba);
12217         if (error) {
12218                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12219                                 "1410 Failed to set up pci memory space.\n");
12220                 goto out_disable_pci_dev;
12221         }
12222
12223         /* Set up SLI-4 Specific device driver resources */
12224         error = lpfc_sli4_driver_resource_setup(phba);
12225         if (error) {
12226                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12227                                 "1412 Failed to set up driver resource.\n");
12228                 goto out_unset_pci_mem_s4;
12229         }
12230
12231         INIT_LIST_HEAD(&phba->active_rrq_list);
12232         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
12233
12234         /* Set up common device driver resources */
12235         error = lpfc_setup_driver_resource_phase2(phba);
12236         if (error) {
12237                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12238                                 "1414 Failed to set up driver resource.\n");
12239                 goto out_unset_driver_resource_s4;
12240         }
12241
12242         /* Get the default values for Model Name and Description */
12243         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
12244
12245         /* Now, trying to enable interrupt and bring up the device */
12246         cfg_mode = phba->cfg_use_msi;
12247
12248         /* Put device to a known state before enabling interrupt */
12249         phba->pport = NULL;
12250         lpfc_stop_port(phba);
12251
12252         /* Configure and enable interrupt */
12253         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
12254         if (intr_mode == LPFC_INTR_ERROR) {
12255                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12256                                 "0426 Failed to enable interrupt.\n");
12257                 error = -ENODEV;
12258                 goto out_unset_driver_resource;
12259         }
12260         /* Default to single EQ for non-MSI-X */
12261         if (phba->intr_type != MSIX) {
12262                 phba->cfg_irq_chann = 1;
12263                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12264                         if (phba->nvmet_support)
12265                                 phba->cfg_nvmet_mrq = 1;
12266                 }
12267         }
12268         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
12269
12270         /* Create SCSI host to the physical port */
12271         error = lpfc_create_shost(phba);
12272         if (error) {
12273                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12274                                 "1415 Failed to create scsi host.\n");
12275                 goto out_disable_intr;
12276         }
12277         vport = phba->pport;
12278         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
12279
12280         /* Configure sysfs attributes */
12281         error = lpfc_alloc_sysfs_attr(vport);
12282         if (error) {
12283                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12284                                 "1416 Failed to allocate sysfs attr\n");
12285                 goto out_destroy_shost;
12286         }
12287
12288         /* Set up SLI-4 HBA */
12289         if (lpfc_sli4_hba_setup(phba)) {
12290                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12291                                 "1421 Failed to set up hba\n");
12292                 error = -ENODEV;
12293                 goto out_free_sysfs_attr;
12294         }
12295
12296         /* Log the current active interrupt mode */
12297         phba->intr_mode = intr_mode;
12298         lpfc_log_intr_mode(phba, intr_mode);
12299
12300         /* Perform post initialization setup */
12301         lpfc_post_init_setup(phba);
12302
12303         /* NVME support in FW earlier in the driver load corrects the
12304          * FC4 type making a check for nvme_support unnecessary.
12305          */
12306         if (phba->nvmet_support == 0) {
12307                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
12308                         /* Create NVME binding with nvme_fc_transport. This
12309                          * ensures the vport is initialized.  If the localport
12310                          * create fails, it should not unload the driver to
12311                          * support field issues.
12312                          */
12313                         error = lpfc_nvme_create_localport(vport);
12314                         if (error) {
12315                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12316                                                 "6004 NVME registration "
12317                                                 "failed, error x%x\n",
12318                                                 error);
12319                         }
12320                 }
12321         }
12322
12323         /* check for firmware upgrade or downgrade */
12324         if (phba->cfg_request_firmware_upgrade)
12325                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
12326
12327         /* Check if there are static vports to be created. */
12328         lpfc_create_static_vport(phba);
12329
12330         /* Enable RAS FW log support */
12331         lpfc_sli4_ras_setup(phba);
12332
12333         return 0;
12334
12335 out_free_sysfs_attr:
12336         lpfc_free_sysfs_attr(vport);
12337 out_destroy_shost:
12338         lpfc_destroy_shost(phba);
12339 out_disable_intr:
12340         lpfc_sli4_disable_intr(phba);
12341 out_unset_driver_resource:
12342         lpfc_unset_driver_resource_phase2(phba);
12343 out_unset_driver_resource_s4:
12344         lpfc_sli4_driver_resource_unset(phba);
12345 out_unset_pci_mem_s4:
12346         lpfc_sli4_pci_mem_unset(phba);
12347 out_disable_pci_dev:
12348         lpfc_disable_pci_dev(phba);
12349         if (shost)
12350                 scsi_host_put(shost);
12351 out_free_phba:
12352         lpfc_hba_free(phba);
12353         return error;
12354 }
12355
12356 /**
12357  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
12358  * @pdev: pointer to PCI device
12359  *
12360  * This routine is called from the kernel's PCI subsystem to device with
12361  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
12362  * removed from PCI bus, it performs all the necessary cleanup for the HBA
12363  * device to be removed from the PCI subsystem properly.
12364  **/
12365 static void
12366 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
12367 {
12368         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12369         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
12370         struct lpfc_vport **vports;
12371         struct lpfc_hba *phba = vport->phba;
12372         int i;
12373
12374         /* Mark the device unloading flag */
12375         spin_lock_irq(&phba->hbalock);
12376         vport->load_flag |= FC_UNLOADING;
12377         spin_unlock_irq(&phba->hbalock);
12378
12379         /* Free the HBA sysfs attributes */
12380         lpfc_free_sysfs_attr(vport);
12381
12382         /* Release all the vports against this physical port */
12383         vports = lpfc_create_vport_work_array(phba);
12384         if (vports != NULL)
12385                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
12386                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
12387                                 continue;
12388                         fc_vport_terminate(vports[i]->fc_vport);
12389                 }
12390         lpfc_destroy_vport_work_array(phba, vports);
12391
12392         /* Remove FC host and then SCSI host with the physical port */
12393         fc_remove_host(shost);
12394         scsi_remove_host(shost);
12395
12396         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
12397          * localports are destroyed after to cleanup all transport memory.
12398          */
12399         lpfc_cleanup(vport);
12400         lpfc_nvmet_destroy_targetport(phba);
12401         lpfc_nvme_destroy_localport(vport);
12402
12403         /* De-allocate multi-XRI pools */
12404         if (phba->cfg_xri_rebalancing)
12405                 lpfc_destroy_multixri_pools(phba);
12406
12407         /*
12408          * Bring down the SLI Layer. This step disables all interrupts,
12409          * clears the rings, discards all mailbox commands, and resets
12410          * the HBA FCoE function.
12411          */
12412         lpfc_debugfs_terminate(vport);
12413
12414         lpfc_stop_hba_timers(phba);
12415         spin_lock_irq(&phba->port_list_lock);
12416         list_del_init(&vport->listentry);
12417         spin_unlock_irq(&phba->port_list_lock);
12418
12419         /* Perform scsi free before driver resource_unset since scsi
12420          * buffers are released to their corresponding pools here.
12421          */
12422         lpfc_io_free(phba);
12423         lpfc_free_iocb_list(phba);
12424         lpfc_sli4_hba_unset(phba);
12425
12426         lpfc_unset_driver_resource_phase2(phba);
12427         lpfc_sli4_driver_resource_unset(phba);
12428
12429         /* Unmap adapter Control and Doorbell registers */
12430         lpfc_sli4_pci_mem_unset(phba);
12431
12432         /* Release PCI resources and disable device's PCI function */
12433         scsi_host_put(shost);
12434         lpfc_disable_pci_dev(phba);
12435
12436         /* Finally, free the driver's device data structure */
12437         lpfc_hba_free(phba);
12438
12439         return;
12440 }
12441
12442 /**
12443  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
12444  * @pdev: pointer to PCI device
12445  * @msg: power management message
12446  *
12447  * This routine is called from the kernel's PCI subsystem to support system
12448  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
12449  * this method, it quiesces the device by stopping the driver's worker
12450  * thread for the device, turning off device's interrupt and DMA, and bring
12451  * the device offline. Note that as the driver implements the minimum PM
12452  * requirements to a power-aware driver's PM support for suspend/resume -- all
12453  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
12454  * method call will be treated as SUSPEND and the driver will fully
12455  * reinitialize its device during resume() method call, the driver will set
12456  * device to PCI_D3hot state in PCI config space instead of setting it
12457  * according to the @msg provided by the PM.
12458  *
12459  * Return code
12460  *      0 - driver suspended the device
12461  *      Error otherwise
12462  **/
12463 static int
12464 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
12465 {
12466         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12467         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12468
12469         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12470                         "2843 PCI device Power Management suspend.\n");
12471
12472         /* Bring down the device */
12473         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12474         lpfc_offline(phba);
12475         kthread_stop(phba->worker_thread);
12476
12477         /* Disable interrupt from device */
12478         lpfc_sli4_disable_intr(phba);
12479         lpfc_sli4_queue_destroy(phba);
12480
12481         /* Save device state to PCI config space */
12482         pci_save_state(pdev);
12483         pci_set_power_state(pdev, PCI_D3hot);
12484
12485         return 0;
12486 }
12487
12488 /**
12489  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
12490  * @pdev: pointer to PCI device
12491  *
12492  * This routine is called from the kernel's PCI subsystem to support system
12493  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
12494  * this method, it restores the device's PCI config space state and fully
12495  * reinitializes the device and brings it online. Note that as the driver
12496  * implements the minimum PM requirements to a power-aware driver's PM for
12497  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
12498  * to the suspend() method call will be treated as SUSPEND and the driver
12499  * will fully reinitialize its device during resume() method call, the device
12500  * will be set to PCI_D0 directly in PCI config space before restoring the
12501  * state.
12502  *
12503  * Return code
12504  *      0 - driver suspended the device
12505  *      Error otherwise
12506  **/
12507 static int
12508 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
12509 {
12510         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12511         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12512         uint32_t intr_mode;
12513         int error;
12514
12515         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12516                         "0292 PCI device Power Management resume.\n");
12517
12518         /* Restore device state from PCI config space */
12519         pci_set_power_state(pdev, PCI_D0);
12520         pci_restore_state(pdev);
12521
12522         /*
12523          * As the new kernel behavior of pci_restore_state() API call clears
12524          * device saved_state flag, need to save the restored state again.
12525          */
12526         pci_save_state(pdev);
12527
12528         if (pdev->is_busmaster)
12529                 pci_set_master(pdev);
12530
12531          /* Startup the kernel thread for this host adapter. */
12532         phba->worker_thread = kthread_run(lpfc_do_work, phba,
12533                                         "lpfc_worker_%d", phba->brd_no);
12534         if (IS_ERR(phba->worker_thread)) {
12535                 error = PTR_ERR(phba->worker_thread);
12536                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12537                                 "0293 PM resume failed to start worker "
12538                                 "thread: error=x%x.\n", error);
12539                 return error;
12540         }
12541
12542         /* Configure and enable interrupt */
12543         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12544         if (intr_mode == LPFC_INTR_ERROR) {
12545                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12546                                 "0294 PM resume Failed to enable interrupt\n");
12547                 return -EIO;
12548         } else
12549                 phba->intr_mode = intr_mode;
12550
12551         /* Restart HBA and bring it online */
12552         lpfc_sli_brdrestart(phba);
12553         lpfc_online(phba);
12554
12555         /* Log the current active interrupt mode */
12556         lpfc_log_intr_mode(phba, phba->intr_mode);
12557
12558         return 0;
12559 }
12560
12561 /**
12562  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
12563  * @phba: pointer to lpfc hba data structure.
12564  *
12565  * This routine is called to prepare the SLI4 device for PCI slot recover. It
12566  * aborts all the outstanding SCSI I/Os to the pci device.
12567  **/
12568 static void
12569 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
12570 {
12571         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12572                         "2828 PCI channel I/O abort preparing for recovery\n");
12573         /*
12574          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
12575          * and let the SCSI mid-layer to retry them to recover.
12576          */
12577         lpfc_sli_abort_fcp_rings(phba);
12578 }
12579
12580 /**
12581  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
12582  * @phba: pointer to lpfc hba data structure.
12583  *
12584  * This routine is called to prepare the SLI4 device for PCI slot reset. It
12585  * disables the device interrupt and pci device, and aborts the internal FCP
12586  * pending I/Os.
12587  **/
12588 static void
12589 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
12590 {
12591         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12592                         "2826 PCI channel disable preparing for reset\n");
12593
12594         /* Block any management I/Os to the device */
12595         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
12596
12597         /* Block all SCSI devices' I/Os on the host */
12598         lpfc_scsi_dev_block(phba);
12599
12600         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
12601         lpfc_sli_flush_fcp_rings(phba);
12602
12603         /* Flush the outstanding NVME IOs if fc4 type enabled. */
12604         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12605                 lpfc_sli_flush_nvme_rings(phba);
12606
12607         /* stop all timers */
12608         lpfc_stop_hba_timers(phba);
12609
12610         /* Disable interrupt and pci device */
12611         lpfc_sli4_disable_intr(phba);
12612         lpfc_sli4_queue_destroy(phba);
12613         pci_disable_device(phba->pcidev);
12614 }
12615
12616 /**
12617  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
12618  * @phba: pointer to lpfc hba data structure.
12619  *
12620  * This routine is called to prepare the SLI4 device for PCI slot permanently
12621  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
12622  * pending I/Os.
12623  **/
12624 static void
12625 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
12626 {
12627         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12628                         "2827 PCI channel permanent disable for failure\n");
12629
12630         /* Block all SCSI devices' I/Os on the host */
12631         lpfc_scsi_dev_block(phba);
12632
12633         /* stop all timers */
12634         lpfc_stop_hba_timers(phba);
12635
12636         /* Clean up all driver's outstanding SCSI I/Os */
12637         lpfc_sli_flush_fcp_rings(phba);
12638
12639         /* Flush the outstanding NVME IOs if fc4 type enabled. */
12640         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
12641                 lpfc_sli_flush_nvme_rings(phba);
12642 }
12643
12644 /**
12645  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
12646  * @pdev: pointer to PCI device.
12647  * @state: the current PCI connection state.
12648  *
12649  * This routine is called from the PCI subsystem for error handling to device
12650  * with SLI-4 interface spec. This function is called by the PCI subsystem
12651  * after a PCI bus error affecting this device has been detected. When this
12652  * function is invoked, it will need to stop all the I/Os and interrupt(s)
12653  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
12654  * for the PCI subsystem to perform proper recovery as desired.
12655  *
12656  * Return codes
12657  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12658  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12659  **/
12660 static pci_ers_result_t
12661 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
12662 {
12663         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12664         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12665
12666         switch (state) {
12667         case pci_channel_io_normal:
12668                 /* Non-fatal error, prepare for recovery */
12669                 lpfc_sli4_prep_dev_for_recover(phba);
12670                 return PCI_ERS_RESULT_CAN_RECOVER;
12671         case pci_channel_io_frozen:
12672                 /* Fatal error, prepare for slot reset */
12673                 lpfc_sli4_prep_dev_for_reset(phba);
12674                 return PCI_ERS_RESULT_NEED_RESET;
12675         case pci_channel_io_perm_failure:
12676                 /* Permanent failure, prepare for device down */
12677                 lpfc_sli4_prep_dev_for_perm_failure(phba);
12678                 return PCI_ERS_RESULT_DISCONNECT;
12679         default:
12680                 /* Unknown state, prepare and request slot reset */
12681                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12682                                 "2825 Unknown PCI error state: x%x\n", state);
12683                 lpfc_sli4_prep_dev_for_reset(phba);
12684                 return PCI_ERS_RESULT_NEED_RESET;
12685         }
12686 }
12687
12688 /**
12689  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
12690  * @pdev: pointer to PCI device.
12691  *
12692  * This routine is called from the PCI subsystem for error handling to device
12693  * with SLI-4 interface spec. It is called after PCI bus has been reset to
12694  * restart the PCI card from scratch, as if from a cold-boot. During the
12695  * PCI subsystem error recovery, after the driver returns
12696  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
12697  * recovery and then call this routine before calling the .resume method to
12698  * recover the device. This function will initialize the HBA device, enable
12699  * the interrupt, but it will just put the HBA to offline state without
12700  * passing any I/O traffic.
12701  *
12702  * Return codes
12703  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12704  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12705  */
12706 static pci_ers_result_t
12707 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
12708 {
12709         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12710         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12711         struct lpfc_sli *psli = &phba->sli;
12712         uint32_t intr_mode;
12713
12714         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
12715         if (pci_enable_device_mem(pdev)) {
12716                 printk(KERN_ERR "lpfc: Cannot re-enable "
12717                         "PCI device after reset.\n");
12718                 return PCI_ERS_RESULT_DISCONNECT;
12719         }
12720
12721         pci_restore_state(pdev);
12722
12723         /*
12724          * As the new kernel behavior of pci_restore_state() API call clears
12725          * device saved_state flag, need to save the restored state again.
12726          */
12727         pci_save_state(pdev);
12728
12729         if (pdev->is_busmaster)
12730                 pci_set_master(pdev);
12731
12732         spin_lock_irq(&phba->hbalock);
12733         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
12734         spin_unlock_irq(&phba->hbalock);
12735
12736         /* Configure and enable interrupt */
12737         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
12738         if (intr_mode == LPFC_INTR_ERROR) {
12739                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12740                                 "2824 Cannot re-enable interrupt after "
12741                                 "slot reset.\n");
12742                 return PCI_ERS_RESULT_DISCONNECT;
12743         } else
12744                 phba->intr_mode = intr_mode;
12745
12746         /* Log the current active interrupt mode */
12747         lpfc_log_intr_mode(phba, phba->intr_mode);
12748
12749         return PCI_ERS_RESULT_RECOVERED;
12750 }
12751
12752 /**
12753  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
12754  * @pdev: pointer to PCI device
12755  *
12756  * This routine is called from the PCI subsystem for error handling to device
12757  * with SLI-4 interface spec. It is called when kernel error recovery tells
12758  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
12759  * error recovery. After this call, traffic can start to flow from this device
12760  * again.
12761  **/
12762 static void
12763 lpfc_io_resume_s4(struct pci_dev *pdev)
12764 {
12765         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12766         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12767
12768         /*
12769          * In case of slot reset, as function reset is performed through
12770          * mailbox command which needs DMA to be enabled, this operation
12771          * has to be moved to the io resume phase. Taking device offline
12772          * will perform the necessary cleanup.
12773          */
12774         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
12775                 /* Perform device reset */
12776                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
12777                 lpfc_offline(phba);
12778                 lpfc_sli_brdrestart(phba);
12779                 /* Bring the device back online */
12780                 lpfc_online(phba);
12781         }
12782 }
12783
12784 /**
12785  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
12786  * @pdev: pointer to PCI device
12787  * @pid: pointer to PCI device identifier
12788  *
12789  * This routine is to be registered to the kernel's PCI subsystem. When an
12790  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
12791  * at PCI device-specific information of the device and driver to see if the
12792  * driver state that it can support this kind of device. If the match is
12793  * successful, the driver core invokes this routine. This routine dispatches
12794  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
12795  * do all the initialization that it needs to do to handle the HBA device
12796  * properly.
12797  *
12798  * Return code
12799  *      0 - driver can claim the device
12800  *      negative value - driver can not claim the device
12801  **/
12802 static int
12803 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
12804 {
12805         int rc;
12806         struct lpfc_sli_intf intf;
12807
12808         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
12809                 return -ENODEV;
12810
12811         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
12812             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
12813                 rc = lpfc_pci_probe_one_s4(pdev, pid);
12814         else
12815                 rc = lpfc_pci_probe_one_s3(pdev, pid);
12816
12817         return rc;
12818 }
12819
12820 /**
12821  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
12822  * @pdev: pointer to PCI device
12823  *
12824  * This routine is to be registered to the kernel's PCI subsystem. When an
12825  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
12826  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
12827  * remove routine, which will perform all the necessary cleanup for the
12828  * device to be removed from the PCI subsystem properly.
12829  **/
12830 static void
12831 lpfc_pci_remove_one(struct pci_dev *pdev)
12832 {
12833         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12834         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12835
12836         switch (phba->pci_dev_grp) {
12837         case LPFC_PCI_DEV_LP:
12838                 lpfc_pci_remove_one_s3(pdev);
12839                 break;
12840         case LPFC_PCI_DEV_OC:
12841                 lpfc_pci_remove_one_s4(pdev);
12842                 break;
12843         default:
12844                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12845                                 "1424 Invalid PCI device group: 0x%x\n",
12846                                 phba->pci_dev_grp);
12847                 break;
12848         }
12849         return;
12850 }
12851
12852 /**
12853  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
12854  * @pdev: pointer to PCI device
12855  * @msg: power management message
12856  *
12857  * This routine is to be registered to the kernel's PCI subsystem to support
12858  * system Power Management (PM). When PM invokes this method, it dispatches
12859  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
12860  * suspend the device.
12861  *
12862  * Return code
12863  *      0 - driver suspended the device
12864  *      Error otherwise
12865  **/
12866 static int
12867 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
12868 {
12869         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12870         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12871         int rc = -ENODEV;
12872
12873         switch (phba->pci_dev_grp) {
12874         case LPFC_PCI_DEV_LP:
12875                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
12876                 break;
12877         case LPFC_PCI_DEV_OC:
12878                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
12879                 break;
12880         default:
12881                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12882                                 "1425 Invalid PCI device group: 0x%x\n",
12883                                 phba->pci_dev_grp);
12884                 break;
12885         }
12886         return rc;
12887 }
12888
12889 /**
12890  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
12891  * @pdev: pointer to PCI device
12892  *
12893  * This routine is to be registered to the kernel's PCI subsystem to support
12894  * system Power Management (PM). When PM invokes this method, it dispatches
12895  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
12896  * resume the device.
12897  *
12898  * Return code
12899  *      0 - driver suspended the device
12900  *      Error otherwise
12901  **/
12902 static int
12903 lpfc_pci_resume_one(struct pci_dev *pdev)
12904 {
12905         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12906         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12907         int rc = -ENODEV;
12908
12909         switch (phba->pci_dev_grp) {
12910         case LPFC_PCI_DEV_LP:
12911                 rc = lpfc_pci_resume_one_s3(pdev);
12912                 break;
12913         case LPFC_PCI_DEV_OC:
12914                 rc = lpfc_pci_resume_one_s4(pdev);
12915                 break;
12916         default:
12917                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12918                                 "1426 Invalid PCI device group: 0x%x\n",
12919                                 phba->pci_dev_grp);
12920                 break;
12921         }
12922         return rc;
12923 }
12924
12925 /**
12926  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
12927  * @pdev: pointer to PCI device.
12928  * @state: the current PCI connection state.
12929  *
12930  * This routine is registered to the PCI subsystem for error handling. This
12931  * function is called by the PCI subsystem after a PCI bus error affecting
12932  * this device has been detected. When this routine is invoked, it dispatches
12933  * the action to the proper SLI-3 or SLI-4 device error detected handling
12934  * routine, which will perform the proper error detected operation.
12935  *
12936  * Return codes
12937  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
12938  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12939  **/
12940 static pci_ers_result_t
12941 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
12942 {
12943         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12944         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12945         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12946
12947         switch (phba->pci_dev_grp) {
12948         case LPFC_PCI_DEV_LP:
12949                 rc = lpfc_io_error_detected_s3(pdev, state);
12950                 break;
12951         case LPFC_PCI_DEV_OC:
12952                 rc = lpfc_io_error_detected_s4(pdev, state);
12953                 break;
12954         default:
12955                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12956                                 "1427 Invalid PCI device group: 0x%x\n",
12957                                 phba->pci_dev_grp);
12958                 break;
12959         }
12960         return rc;
12961 }
12962
12963 /**
12964  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
12965  * @pdev: pointer to PCI device.
12966  *
12967  * This routine is registered to the PCI subsystem for error handling. This
12968  * function is called after PCI bus has been reset to restart the PCI card
12969  * from scratch, as if from a cold-boot. When this routine is invoked, it
12970  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
12971  * routine, which will perform the proper device reset.
12972  *
12973  * Return codes
12974  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
12975  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
12976  **/
12977 static pci_ers_result_t
12978 lpfc_io_slot_reset(struct pci_dev *pdev)
12979 {
12980         struct Scsi_Host *shost = pci_get_drvdata(pdev);
12981         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
12982         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
12983
12984         switch (phba->pci_dev_grp) {
12985         case LPFC_PCI_DEV_LP:
12986                 rc = lpfc_io_slot_reset_s3(pdev);
12987                 break;
12988         case LPFC_PCI_DEV_OC:
12989                 rc = lpfc_io_slot_reset_s4(pdev);
12990                 break;
12991         default:
12992                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12993                                 "1428 Invalid PCI device group: 0x%x\n",
12994                                 phba->pci_dev_grp);
12995                 break;
12996         }
12997         return rc;
12998 }
12999
13000 /**
13001  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
13002  * @pdev: pointer to PCI device
13003  *
13004  * This routine is registered to the PCI subsystem for error handling. It
13005  * is called when kernel error recovery tells the lpfc driver that it is
13006  * OK to resume normal PCI operation after PCI bus error recovery. When
13007  * this routine is invoked, it dispatches the action to the proper SLI-3
13008  * or SLI-4 device io_resume routine, which will resume the device operation.
13009  **/
13010 static void
13011 lpfc_io_resume(struct pci_dev *pdev)
13012 {
13013         struct Scsi_Host *shost = pci_get_drvdata(pdev);
13014         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
13015
13016         switch (phba->pci_dev_grp) {
13017         case LPFC_PCI_DEV_LP:
13018                 lpfc_io_resume_s3(pdev);
13019                 break;
13020         case LPFC_PCI_DEV_OC:
13021                 lpfc_io_resume_s4(pdev);
13022                 break;
13023         default:
13024                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13025                                 "1429 Invalid PCI device group: 0x%x\n",
13026                                 phba->pci_dev_grp);
13027                 break;
13028         }
13029         return;
13030 }
13031
13032 /**
13033  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
13034  * @phba: pointer to lpfc hba data structure.
13035  *
13036  * This routine checks to see if OAS is supported for this adapter. If
13037  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
13038  * the enable oas flag is cleared and the pool created for OAS device data
13039  * is destroyed.
13040  *
13041  **/
13042 void
13043 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
13044 {
13045
13046         if (!phba->cfg_EnableXLane)
13047                 return;
13048
13049         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
13050                 phba->cfg_fof = 1;
13051         } else {
13052                 phba->cfg_fof = 0;
13053                 if (phba->device_data_mem_pool)
13054                         mempool_destroy(phba->device_data_mem_pool);
13055                 phba->device_data_mem_pool = NULL;
13056         }
13057
13058         return;
13059 }
13060
13061 /**
13062  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
13063  * @phba: pointer to lpfc hba data structure.
13064  *
13065  * This routine checks to see if RAS is supported by the adapter. Check the
13066  * function through which RAS support enablement is to be done.
13067  **/
13068 void
13069 lpfc_sli4_ras_init(struct lpfc_hba *phba)
13070 {
13071         switch (phba->pcidev->device) {
13072         case PCI_DEVICE_ID_LANCER_G6_FC:
13073         case PCI_DEVICE_ID_LANCER_G7_FC:
13074                 phba->ras_fwlog.ras_hwsupport = true;
13075                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
13076                     phba->cfg_ras_fwlog_buffsize)
13077                         phba->ras_fwlog.ras_enabled = true;
13078                 else
13079                         phba->ras_fwlog.ras_enabled = false;
13080                 break;
13081         default:
13082                 phba->ras_fwlog.ras_hwsupport = false;
13083         }
13084 }
13085
13086
13087 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
13088
13089 static const struct pci_error_handlers lpfc_err_handler = {
13090         .error_detected = lpfc_io_error_detected,
13091         .slot_reset = lpfc_io_slot_reset,
13092         .resume = lpfc_io_resume,
13093 };
13094
13095 static struct pci_driver lpfc_driver = {
13096         .name           = LPFC_DRIVER_NAME,
13097         .id_table       = lpfc_id_table,
13098         .probe          = lpfc_pci_probe_one,
13099         .remove         = lpfc_pci_remove_one,
13100         .shutdown       = lpfc_pci_remove_one,
13101         .suspend        = lpfc_pci_suspend_one,
13102         .resume         = lpfc_pci_resume_one,
13103         .err_handler    = &lpfc_err_handler,
13104 };
13105
13106 static const struct file_operations lpfc_mgmt_fop = {
13107         .owner = THIS_MODULE,
13108 };
13109
13110 static struct miscdevice lpfc_mgmt_dev = {
13111         .minor = MISC_DYNAMIC_MINOR,
13112         .name = "lpfcmgmt",
13113         .fops = &lpfc_mgmt_fop,
13114 };
13115
13116 /**
13117  * lpfc_init - lpfc module initialization routine
13118  *
13119  * This routine is to be invoked when the lpfc module is loaded into the
13120  * kernel. The special kernel macro module_init() is used to indicate the
13121  * role of this routine to the kernel as lpfc module entry point.
13122  *
13123  * Return codes
13124  *   0 - successful
13125  *   -ENOMEM - FC attach transport failed
13126  *   all others - failed
13127  */
13128 static int __init
13129 lpfc_init(void)
13130 {
13131         int error = 0;
13132
13133         printk(LPFC_MODULE_DESC "\n");
13134         printk(LPFC_COPYRIGHT "\n");
13135
13136         error = misc_register(&lpfc_mgmt_dev);
13137         if (error)
13138                 printk(KERN_ERR "Could not register lpfcmgmt device, "
13139                         "misc_register returned with status %d", error);
13140
13141         lpfc_transport_functions.vport_create = lpfc_vport_create;
13142         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
13143         lpfc_transport_template =
13144                                 fc_attach_transport(&lpfc_transport_functions);
13145         if (lpfc_transport_template == NULL)
13146                 return -ENOMEM;
13147         lpfc_vport_transport_template =
13148                 fc_attach_transport(&lpfc_vport_transport_functions);
13149         if (lpfc_vport_transport_template == NULL) {
13150                 fc_release_transport(lpfc_transport_template);
13151                 return -ENOMEM;
13152         }
13153         lpfc_nvme_cmd_template();
13154         lpfc_nvmet_cmd_template();
13155
13156         /* Initialize in case vector mapping is needed */
13157         lpfc_present_cpu = num_present_cpus();
13158
13159         error = pci_register_driver(&lpfc_driver);
13160         if (error) {
13161                 fc_release_transport(lpfc_transport_template);
13162                 fc_release_transport(lpfc_vport_transport_template);
13163         }
13164
13165         return error;
13166 }
13167
13168 /**
13169  * lpfc_exit - lpfc module removal routine
13170  *
13171  * This routine is invoked when the lpfc module is removed from the kernel.
13172  * The special kernel macro module_exit() is used to indicate the role of
13173  * this routine to the kernel as lpfc module exit point.
13174  */
13175 static void __exit
13176 lpfc_exit(void)
13177 {
13178         misc_deregister(&lpfc_mgmt_dev);
13179         pci_unregister_driver(&lpfc_driver);
13180         fc_release_transport(lpfc_transport_template);
13181         fc_release_transport(lpfc_vport_transport_template);
13182         if (_dump_buf_data) {
13183                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
13184                                 "_dump_buf_data at 0x%p\n",
13185                                 (1L << _dump_buf_data_order), _dump_buf_data);
13186                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
13187         }
13188
13189         if (_dump_buf_dif) {
13190                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
13191                                 "_dump_buf_dif at 0x%p\n",
13192                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
13193                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
13194         }
13195         idr_destroy(&lpfc_hba_index);
13196 }
13197
13198 module_init(lpfc_init);
13199 module_exit(lpfc_exit);
13200 MODULE_LICENSE("GPL");
13201 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
13202 MODULE_AUTHOR("Broadcom");
13203 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);