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) 2004-2016 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <linux/blkdev.h>
  23 #include <linux/delay.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/idr.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/module.h>
  28 #include <linux/kthread.h>
  29 #include <linux/pci.h>
  30 #include <linux/spinlock.h>
  31 #include <linux/ctype.h>
  32 #include <linux/aer.h>
  33 #include <linux/slab.h>
  34 #include <linux/firmware.h>
  35 #include <linux/miscdevice.h>
  36 #include <linux/percpu.h>
  37
  38 #include <scsi/scsi.h>
  39 #include <scsi/scsi_device.h>
  40 #include <scsi/scsi_host.h>
  41 #include <scsi/scsi_transport_fc.h>
  42
  43 #include "lpfc_hw4.h"
  44 #include "lpfc_hw.h"
  45 #include "lpfc_sli.h"
  46 #include "lpfc_sli4.h"
  47 #include "lpfc_nl.h"
  48 #include "lpfc_disc.h"
  49 #include "lpfc_scsi.h"
  50 #include "lpfc.h"
  51 #include "lpfc_logmsg.h"
  52 #include "lpfc_crtn.h"
  53 #include "lpfc_vport.h"
  54 #include "lpfc_version.h"
  55 #include "lpfc_ids.h"
  56
  57 char *_dump_buf_data;
  58 unsigned long _dump_buf_data_order;
  59 char *_dump_buf_dif;
  60 unsigned long _dump_buf_dif_order;
  61 spinlock_t _dump_buf_lock;
  62
  63 /* Used when mapping IRQ vectors in a driver centric manner */
  64 uint16_t *lpfc_used_cpu;
  65 uint32_t lpfc_present_cpu;
  66
  67 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  68 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  69 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  70 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  71 static int lpfc_setup_endian_order(struct lpfc_hba *);
  72 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  73 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  74 static void lpfc_init_sgl_list(struct lpfc_hba *);
  75 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  76 static void lpfc_free_active_sgl(struct lpfc_hba *);
  77 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  78 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  79 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  80 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  81 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  82 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  83 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  84 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  85
  86 static struct scsi_transport_template *lpfc_transport_template = NULL;
  87 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  88 static DEFINE_IDR(lpfc_hba_index);
  89
  90 /**
  91  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  92  * @phba: pointer to lpfc hba data structure.
  93  *
  94  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  95  * mailbox command. It retrieves the revision information from the HBA and
  96  * collects the Vital Product Data (VPD) about the HBA for preparing the
  97  * configuration of the HBA.
  98  *
  99  * Return codes:
 100  *   0 - success.
 101  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 102  *   Any other value - indicates an error.
 103  **/
 104 int
 105 lpfc_config_port_prep(struct lpfc_hba *phba)
 106 {
 107         lpfc_vpd_t *vp = &phba->vpd;
 108         int i = 0, rc;
 109         LPFC_MBOXQ_t *pmb;
 110         MAILBOX_t *mb;
 111         char *lpfc_vpd_data = NULL;
 112         uint16_t offset = 0;
 113         static char licensed[56] =
 114                     "key unlock for use with gnu public licensed code only\0";
 115         static int init_key = 1;
 116
 117         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 118         if (!pmb) {
 119                 phba->link_state = LPFC_HBA_ERROR;
 120                 return -ENOMEM;
 121         }
 122
 123         mb = &pmb->u.mb;
 124         phba->link_state = LPFC_INIT_MBX_CMDS;
 125
 126         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 127                 if (init_key) {
 128                         uint32_t *ptext = (uint32_t *) licensed;
 129
 130                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 131                                 *ptext = cpu_to_be32(*ptext);
 132                         init_key = 0;
 133                 }
 134
 135                 lpfc_read_nv(phba, pmb);
 136                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 137                         sizeof (mb->un.varRDnvp.rsvd3));
 138                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 139                          sizeof (licensed));
 140
 141                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 142
 143                 if (rc != MBX_SUCCESS) {
 144                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 145                                         "0324 Config Port initialization "
 146                                         "error, mbxCmd x%x READ_NVPARM, "
 147                                         "mbxStatus x%x\n",
 148                                         mb->mbxCommand, mb->mbxStatus);
 149                         mempool_free(pmb, phba->mbox_mem_pool);
 150                         return -ERESTART;
 151                 }
 152                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 153                        sizeof(phba->wwnn));
 154                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 155                        sizeof(phba->wwpn));
 156         }
 157
 158         phba->sli3_options = 0x0;
 159
 160         /* Setup and issue mailbox READ REV command */
 161         lpfc_read_rev(phba, pmb);
 162         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 163         if (rc != MBX_SUCCESS) {
 164                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 165                                 "0439 Adapter failed to init, mbxCmd x%x "
 166                                 "READ_REV, mbxStatus x%x\n",
 167                                 mb->mbxCommand, mb->mbxStatus);
 168                 mempool_free( pmb, phba->mbox_mem_pool);
 169                 return -ERESTART;
 170         }
 171
 172
 173         /*
 174          * The value of rr must be 1 since the driver set the cv field to 1.
 175          * This setting requires the FW to set all revision fields.
 176          */
 177         if (mb->un.varRdRev.rr == 0) {
 178                 vp->rev.rBit = 0;
 179                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 180                                 "0440 Adapter failed to init, READ_REV has "
 181                                 "missing revision information.\n");
 182                 mempool_free(pmb, phba->mbox_mem_pool);
 183                 return -ERESTART;
 184         }
 185
 186         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 187                 mempool_free(pmb, phba->mbox_mem_pool);
 188                 return -EINVAL;
 189         }
 190
 191         /* Save information as VPD data */
 192         vp->rev.rBit = 1;
 193         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 194         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 195         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 196         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 197         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 198         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 199         vp->rev.smRev = mb->un.varRdRev.smRev;
 200         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 201         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 202         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 203         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 204         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 205         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 206         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 207         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 208
 209         /* If the sli feature level is less then 9, we must
 210          * tear down all RPIs and VPIs on link down if NPIV
 211          * is enabled.
 212          */
 213         if (vp->rev.feaLevelHigh < 9)
 214                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 215
 216         if (lpfc_is_LC_HBA(phba->pcidev->device))
 217                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 218                                                 sizeof (phba->RandomData));
 219
 220         /* Get adapter VPD information */
 221         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 222         if (!lpfc_vpd_data)
 223                 goto out_free_mbox;
 224         do {
 225                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 226                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 227
 228                 if (rc != MBX_SUCCESS) {
 229                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 230                                         "0441 VPD not present on adapter, "
 231                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 232                                         mb->mbxCommand, mb->mbxStatus);
 233                         mb->un.varDmp.word_cnt = 0;
 234                 }
 235                 /* dump mem may return a zero when finished or we got a
 236                  * mailbox error, either way we are done.
 237                  */
 238                 if (mb->un.varDmp.word_cnt == 0)
 239                         break;
 240                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 241                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 242                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 243                                       lpfc_vpd_data + offset,
 244                                       mb->un.varDmp.word_cnt);
 245                 offset += mb->un.varDmp.word_cnt;
 246         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 247         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 248
 249         kfree(lpfc_vpd_data);
 250 out_free_mbox:
 251         mempool_free(pmb, phba->mbox_mem_pool);
 252         return 0;
 253 }
 254
 255 /**
 256  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 257  * @phba: pointer to lpfc hba data structure.
 258  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 259  *
 260  * This is the completion handler for driver's configuring asynchronous event
 261  * mailbox command to the device. If the mailbox command returns successfully,
 262  * it will set internal async event support flag to 1; otherwise, it will
 263  * set internal async event support flag to 0.
 264  **/
 265 static void
 266 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 267 {
 268         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 269                 phba->temp_sensor_support = 1;
 270         else
 271                 phba->temp_sensor_support = 0;
 272         mempool_free(pmboxq, phba->mbox_mem_pool);
 273         return;
 274 }
 275
 276 /**
 277  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 278  * @phba: pointer to lpfc hba data structure.
 279  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 280  *
 281  * This is the completion handler for dump mailbox command for getting
 282  * wake up parameters. When this command complete, the response contain
 283  * Option rom version of the HBA. This function translate the version number
 284  * into a human readable string and store it in OptionROMVersion.
 285  **/
 286 static void
 287 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 288 {
 289         struct prog_id *prg;
 290         uint32_t prog_id_word;
 291         char dist = ' ';
 292         /* character array used for decoding dist type. */
 293         char dist_char[] = "nabx";
 294
 295         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 296                 mempool_free(pmboxq, phba->mbox_mem_pool);
 297                 return;
 298         }
 299
 300         prg = (struct prog_id *) &prog_id_word;
 301
 302         /* word 7 contain option rom version */
 303         prog_id_word = pmboxq->u.mb.un.varWords[7];
 304
 305         /* Decode the Option rom version word to a readable string */
 306         if (prg->dist < 4)
 307                 dist = dist_char[prg->dist];
 308
 309         if ((prg->dist == 3) && (prg->num == 0))
 310                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 311                         prg->ver, prg->rev, prg->lev);
 312         else
 313                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 314                         prg->ver, prg->rev, prg->lev,
 315                         dist, prg->num);
 316         mempool_free(pmboxq, phba->mbox_mem_pool);
 317         return;
 318 }
 319
 320 /**
 321  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 322  *      cfg_soft_wwnn, cfg_soft_wwpn
 323  * @vport: pointer to lpfc vport data structure.
 324  *
 325  *
 326  * Return codes
 327  *   None.
 328  **/
 329 void
 330 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 331 {
 332         /* If the soft name exists then update it using the service params */
 333         if (vport->phba->cfg_soft_wwnn)
 334                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 335                            vport->fc_sparam.nodeName.u.wwn);
 336         if (vport->phba->cfg_soft_wwpn)
 337                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 338                            vport->fc_sparam.portName.u.wwn);
 339
 340         /*
 341          * If the name is empty or there exists a soft name
 342          * then copy the service params name, otherwise use the fc name
 343          */
 344         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 345                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 346                         sizeof(struct lpfc_name));
 347         else
 348                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 349                         sizeof(struct lpfc_name));
 350
 351         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 352                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 353                         sizeof(struct lpfc_name));
 354         else
 355                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 356                         sizeof(struct lpfc_name));
 357 }
 358
 359 /**
 360  * lpfc_config_port_post - Perform lpfc initialization after config port
 361  * @phba: pointer to lpfc hba data structure.
 362  *
 363  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 364  * command call. It performs all internal resource and state setups on the
 365  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 366  * ELS ring timers, etc.
 367  *
 368  * Return codes
 369  *   0 - success.
 370  *   Any other value - error.
 371  **/
 372 int
 373 lpfc_config_port_post(struct lpfc_hba *phba)
 374 {
 375         struct lpfc_vport *vport = phba->pport;
 376         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 377         LPFC_MBOXQ_t *pmb;
 378         MAILBOX_t *mb;
 379         struct lpfc_dmabuf *mp;
 380         struct lpfc_sli *psli = &phba->sli;
 381         uint32_t status, timeout;
 382         int i, j;
 383         int rc;
 384
 385         spin_lock_irq(&phba->hbalock);
 386         /*
 387          * If the Config port completed correctly the HBA is not
 388          * over heated any more.
 389          */
 390         if (phba->over_temp_state == HBA_OVER_TEMP)
 391                 phba->over_temp_state = HBA_NORMAL_TEMP;
 392         spin_unlock_irq(&phba->hbalock);
 393
 394         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 395         if (!pmb) {
 396                 phba->link_state = LPFC_HBA_ERROR;
 397                 return -ENOMEM;
 398         }
 399         mb = &pmb->u.mb;
 400
 401         /* Get login parameters for NID.  */
 402         rc = lpfc_read_sparam(phba, pmb, 0);
 403         if (rc) {
 404                 mempool_free(pmb, phba->mbox_mem_pool);
 405                 return -ENOMEM;
 406         }
 407
 408         pmb->vport = vport;
 409         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 410                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 411                                 "0448 Adapter failed init, mbxCmd x%x "
 412                                 "READ_SPARM mbxStatus x%x\n",
 413                                 mb->mbxCommand, mb->mbxStatus);
 414                 phba->link_state = LPFC_HBA_ERROR;
 415                 mp = (struct lpfc_dmabuf *) pmb->context1;
 416                 mempool_free(pmb, phba->mbox_mem_pool);
 417                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 418                 kfree(mp);
 419                 return -EIO;
 420         }
 421
 422         mp = (struct lpfc_dmabuf *) pmb->context1;
 423
 424         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 425         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 426         kfree(mp);
 427         pmb->context1 = NULL;
 428         lpfc_update_vport_wwn(vport);
 429
 430         /* Update the fc_host data structures with new wwn. */
 431         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 432         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 433         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 434
 435         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 436         /* This should be consolidated into parse_vpd ? - mr */
 437         if (phba->SerialNumber[0] == 0) {
 438                 uint8_t *outptr;
 439
 440                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 441                 for (i = 0; i < 12; i++) {
 442                         status = *outptr++;
 443                         j = ((status & 0xf0) >> 4);
 444                         if (j <= 9)
 445                                 phba->SerialNumber[i] =
 446                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 447                         else
 448                                 phba->SerialNumber[i] =
 449                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 450                         i++;
 451                         j = (status & 0xf);
 452                         if (j <= 9)
 453                                 phba->SerialNumber[i] =
 454                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 455                         else
 456                                 phba->SerialNumber[i] =
 457                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 458                 }
 459         }
 460
 461         lpfc_read_config(phba, pmb);
 462         pmb->vport = vport;
 463         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 464                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 465                                 "0453 Adapter failed to init, mbxCmd x%x "
 466                                 "READ_CONFIG, mbxStatus x%x\n",
 467                                 mb->mbxCommand, mb->mbxStatus);
 468                 phba->link_state = LPFC_HBA_ERROR;
 469                 mempool_free( pmb, phba->mbox_mem_pool);
 470                 return -EIO;
 471         }
 472
 473         /* Check if the port is disabled */
 474         lpfc_sli_read_link_ste(phba);
 475
 476         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 477         i = (mb->un.varRdConfig.max_xri + 1);
 478         if (phba->cfg_hba_queue_depth > i) {
 479                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 480                                 "3359 HBA queue depth changed from %d to %d\n",
 481                                 phba->cfg_hba_queue_depth, i);
 482                 phba->cfg_hba_queue_depth = i;
 483         }
 484
 485         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 486         i = (mb->un.varRdConfig.max_xri >> 3);
 487         if (phba->pport->cfg_lun_queue_depth > i) {
 488                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 489                                 "3360 LUN queue depth changed from %d to %d\n",
 490                                 phba->pport->cfg_lun_queue_depth, i);
 491                 phba->pport->cfg_lun_queue_depth = i;
 492         }
 493
 494         phba->lmt = mb->un.varRdConfig.lmt;
 495
 496         /* Get the default values for Model Name and Description */
 497         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 498
 499         phba->link_state = LPFC_LINK_DOWN;
 500
 501         /* Only process IOCBs on ELS ring till hba_state is READY */
 502         if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
 503                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 504         if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
 505                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 506         if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
 507                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 508
 509         /* Post receive buffers for desired rings */
 510         if (phba->sli_rev != 3)
 511                 lpfc_post_rcv_buf(phba);
 512
 513         /*
 514          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 515          */
 516         if (phba->intr_type == MSIX) {
 517                 rc = lpfc_config_msi(phba, pmb);
 518                 if (rc) {
 519                         mempool_free(pmb, phba->mbox_mem_pool);
 520                         return -EIO;
 521                 }
 522                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 523                 if (rc != MBX_SUCCESS) {
 524                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 525                                         "0352 Config MSI mailbox command "
 526                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 527                                         pmb->u.mb.mbxCommand,
 528                                         pmb->u.mb.mbxStatus);
 529                         mempool_free(pmb, phba->mbox_mem_pool);
 530                         return -EIO;
 531                 }
 532         }
 533
 534         spin_lock_irq(&phba->hbalock);
 535         /* Initialize ERATT handling flag */
 536         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 537
 538         /* Enable appropriate host interrupts */
 539         if (lpfc_readl(phba->HCregaddr, &status)) {
 540                 spin_unlock_irq(&phba->hbalock);
 541                 return -EIO;
 542         }
 543         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 544         if (psli->num_rings > 0)
 545                 status |= HC_R0INT_ENA;
 546         if (psli->num_rings > 1)
 547                 status |= HC_R1INT_ENA;
 548         if (psli->num_rings > 2)
 549                 status |= HC_R2INT_ENA;
 550         if (psli->num_rings > 3)
 551                 status |= HC_R3INT_ENA;
 552
 553         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 554             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 555                 status &= ~(HC_R0INT_ENA);
 556
 557         writel(status, phba->HCregaddr);
 558         readl(phba->HCregaddr); /* flush */
 559         spin_unlock_irq(&phba->hbalock);
 560
 561         /* Set up ring-0 (ELS) timer */
 562         timeout = phba->fc_ratov * 2;
 563         mod_timer(&vport->els_tmofunc,
 564                   jiffies + msecs_to_jiffies(1000 * timeout));
 565         /* Set up heart beat (HB) timer */
 566         mod_timer(&phba->hb_tmofunc,
 567                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 568         phba->hb_outstanding = 0;
 569         phba->last_completion_time = jiffies;
 570         /* Set up error attention (ERATT) polling timer */
 571         mod_timer(&phba->eratt_poll,
 572                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 573
 574         if (phba->hba_flag & LINK_DISABLED) {
 575                 lpfc_printf_log(phba,
 576                         KERN_ERR, LOG_INIT,
 577                         "2598 Adapter Link is disabled.\n");
 578                 lpfc_down_link(phba, pmb);
 579                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 580                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 581                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 582                         lpfc_printf_log(phba,
 583                         KERN_ERR, LOG_INIT,
 584                         "2599 Adapter failed to issue DOWN_LINK"
 585                         " mbox command rc 0x%x\n", rc);
 586
 587                         mempool_free(pmb, phba->mbox_mem_pool);
 588                         return -EIO;
 589                 }
 590         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 591                 mempool_free(pmb, phba->mbox_mem_pool);
 592                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 593                 if (rc)
 594                         return rc;
 595         }
 596         /* MBOX buffer will be freed in mbox compl */
 597         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 598         if (!pmb) {
 599                 phba->link_state = LPFC_HBA_ERROR;
 600                 return -ENOMEM;
 601         }
 602
 603         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 604         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 605         pmb->vport = phba->pport;
 606         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 607
 608         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 609                 lpfc_printf_log(phba,
 610                                 KERN_ERR,
 611                                 LOG_INIT,
 612                                 "0456 Adapter failed to issue "
 613                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 614                                 rc);
 615                 mempool_free(pmb, phba->mbox_mem_pool);
 616         }
 617
 618         /* Get Option rom version */
 619         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 620         if (!pmb) {
 621                 phba->link_state = LPFC_HBA_ERROR;
 622                 return -ENOMEM;
 623         }
 624
 625         lpfc_dump_wakeup_param(phba, pmb);
 626         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 627         pmb->vport = phba->pport;
 628         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 629
 630         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 631                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 632                                 "to get Option ROM version status x%x\n", rc);
 633                 mempool_free(pmb, phba->mbox_mem_pool);
 634         }
 635
 636         return 0;
 637 }
 638
 639 /**
 640  * lpfc_hba_init_link - Initialize the FC link
 641  * @phba: pointer to lpfc hba data structure.
 642  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 643  *
 644  * This routine will issue the INIT_LINK mailbox command call.
 645  * It is available to other drivers through the lpfc_hba data
 646  * structure for use as a delayed link up mechanism with the
 647  * module parameter lpfc_suppress_link_up.
 648  *
 649  * Return code
 650  *              0 - success
 651  *              Any other value - error
 652  **/
 653 static int
 654 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 655 {
 656         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 657 }
 658
 659 /**
 660  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 661  * @phba: pointer to lpfc hba data structure.
 662  * @fc_topology: desired fc topology.
 663  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 664  *
 665  * This routine will issue the INIT_LINK mailbox command call.
 666  * It is available to other drivers through the lpfc_hba data
 667  * structure for use as a delayed link up mechanism with the
 668  * module parameter lpfc_suppress_link_up.
 669  *
 670  * Return code
 671  *              0 - success
 672  *              Any other value - error
 673  **/
 674 int
 675 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 676                                uint32_t flag)
 677 {
 678         struct lpfc_vport *vport = phba->pport;
 679         LPFC_MBOXQ_t *pmb;
 680         MAILBOX_t *mb;
 681         int rc;
 682
 683         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 684         if (!pmb) {
 685                 phba->link_state = LPFC_HBA_ERROR;
 686                 return -ENOMEM;
 687         }
 688         mb = &pmb->u.mb;
 689         pmb->vport = vport;
 690
 691         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 692             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 693              !(phba->lmt & LMT_1Gb)) ||
 694             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 695              !(phba->lmt & LMT_2Gb)) ||
 696             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 697              !(phba->lmt & LMT_4Gb)) ||
 698             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 699              !(phba->lmt & LMT_8Gb)) ||
 700             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 701              !(phba->lmt & LMT_10Gb)) ||
 702             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 703              !(phba->lmt & LMT_16Gb)) ||
 704             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 705              !(phba->lmt & LMT_32Gb))) {
 706                 /* Reset link speed to auto */
 707                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 708                         "1302 Invalid speed for this board:%d "
 709                         "Reset link speed to auto.\n",
 710                         phba->cfg_link_speed);
 711                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 712         }
 713         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 714         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 715         if (phba->sli_rev < LPFC_SLI_REV4)
 716                 lpfc_set_loopback_flag(phba);
 717         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 718         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 719                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 720                         "0498 Adapter failed to init, mbxCmd x%x "
 721                         "INIT_LINK, mbxStatus x%x\n",
 722                         mb->mbxCommand, mb->mbxStatus);
 723                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 724                         /* Clear all interrupt enable conditions */
 725                         writel(0, phba->HCregaddr);
 726                         readl(phba->HCregaddr); /* flush */
 727                         /* Clear all pending interrupts */
 728                         writel(0xffffffff, phba->HAregaddr);
 729                         readl(phba->HAregaddr); /* flush */
 730                 }
 731                 phba->link_state = LPFC_HBA_ERROR;
 732                 if (rc != MBX_BUSY || flag == MBX_POLL)
 733                         mempool_free(pmb, phba->mbox_mem_pool);
 734                 return -EIO;
 735         }
 736         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 737         if (flag == MBX_POLL)
 738                 mempool_free(pmb, phba->mbox_mem_pool);
 739
 740         return 0;
 741 }
 742
 743 /**
 744  * lpfc_hba_down_link - this routine downs the FC link
 745  * @phba: pointer to lpfc hba data structure.
 746  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 747  *
 748  * This routine will issue the DOWN_LINK mailbox command call.
 749  * It is available to other drivers through the lpfc_hba data
 750  * structure for use to stop the link.
 751  *
 752  * Return code
 753  *              0 - success
 754  *              Any other value - error
 755  **/
 756 static int
 757 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 758 {
 759         LPFC_MBOXQ_t *pmb;
 760         int rc;
 761
 762         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 763         if (!pmb) {
 764                 phba->link_state = LPFC_HBA_ERROR;
 765                 return -ENOMEM;
 766         }
 767
 768         lpfc_printf_log(phba,
 769                 KERN_ERR, LOG_INIT,
 770                 "0491 Adapter Link is disabled.\n");
 771         lpfc_down_link(phba, pmb);
 772         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 773         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 774         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 775                 lpfc_printf_log(phba,
 776                 KERN_ERR, LOG_INIT,
 777                 "2522 Adapter failed to issue DOWN_LINK"
 778                 " mbox command rc 0x%x\n", rc);
 779
 780                 mempool_free(pmb, phba->mbox_mem_pool);
 781                 return -EIO;
 782         }
 783         if (flag == MBX_POLL)
 784                 mempool_free(pmb, phba->mbox_mem_pool);
 785
 786         return 0;
 787 }
 788
 789 /**
 790  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 791  * @phba: pointer to lpfc HBA data structure.
 792  *
 793  * This routine will do LPFC uninitialization before the HBA is reset when
 794  * bringing down the SLI Layer.
 795  *
 796  * Return codes
 797  *   0 - success.
 798  *   Any other value - error.
 799  **/
 800 int
 801 lpfc_hba_down_prep(struct lpfc_hba *phba)
 802 {
 803         struct lpfc_vport **vports;
 804         int i;
 805
 806         if (phba->sli_rev <= LPFC_SLI_REV3) {
 807                 /* Disable interrupts */
 808                 writel(0, phba->HCregaddr);
 809                 readl(phba->HCregaddr); /* flush */
 810         }
 811
 812         if (phba->pport->load_flag & FC_UNLOADING)
 813                 lpfc_cleanup_discovery_resources(phba->pport);
 814         else {
 815                 vports = lpfc_create_vport_work_array(phba);
 816                 if (vports != NULL)
 817                         for (i = 0; i <= phba->max_vports &&
 818                                 vports[i] != NULL; i++)
 819                                 lpfc_cleanup_discovery_resources(vports[i]);
 820                 lpfc_destroy_vport_work_array(phba, vports);
 821         }
 822         return 0;
 823 }
 824
 825 /**
 826  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 827  * rspiocb which got deferred
 828  *
 829  * @phba: pointer to lpfc HBA data structure.
 830  *
 831  * This routine will cleanup completed slow path events after HBA is reset
 832  * when bringing down the SLI Layer.
 833  *
 834  *
 835  * Return codes
 836  *   void.
 837  **/
 838 static void
 839 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 840 {
 841         struct lpfc_iocbq *rspiocbq;
 842         struct hbq_dmabuf *dmabuf;
 843         struct lpfc_cq_event *cq_event;
 844
 845         spin_lock_irq(&phba->hbalock);
 846         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 847         spin_unlock_irq(&phba->hbalock);
 848
 849         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 850                 /* Get the response iocb from the head of work queue */
 851                 spin_lock_irq(&phba->hbalock);
 852                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 853                                  cq_event, struct lpfc_cq_event, list);
 854                 spin_unlock_irq(&phba->hbalock);
 855
 856                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 857                 case CQE_CODE_COMPL_WQE:
 858                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 859                                                  cq_event);
 860                         lpfc_sli_release_iocbq(phba, rspiocbq);
 861                         break;
 862                 case CQE_CODE_RECEIVE:
 863                 case CQE_CODE_RECEIVE_V1:
 864                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 865                                               cq_event);
 866                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 867                 }
 868         }
 869 }
 870
 871 /**
 872  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 873  * @phba: pointer to lpfc HBA data structure.
 874  *
 875  * This routine will cleanup posted ELS buffers after the HBA is reset
 876  * when bringing down the SLI Layer.
 877  *
 878  *
 879  * Return codes
 880  *   void.
 881  **/
 882 static void
 883 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 884 {
 885         struct lpfc_sli *psli = &phba->sli;
 886         struct lpfc_sli_ring *pring;
 887         struct lpfc_dmabuf *mp, *next_mp;
 888         LIST_HEAD(buflist);
 889         int count;
 890
 891         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 892                 lpfc_sli_hbqbuf_free_all(phba);
 893         else {
 894                 /* Cleanup preposted buffers on the ELS ring */
 895                 pring = &psli->ring[LPFC_ELS_RING];
 896                 spin_lock_irq(&phba->hbalock);
 897                 list_splice_init(&pring->postbufq, &buflist);
 898                 spin_unlock_irq(&phba->hbalock);
 899
 900                 count = 0;
 901                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 902                         list_del(&mp->list);
 903                         count++;
 904                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 905                         kfree(mp);
 906                 }
 907
 908                 spin_lock_irq(&phba->hbalock);
 909                 pring->postbufq_cnt -= count;
 910                 spin_unlock_irq(&phba->hbalock);
 911         }
 912 }
 913
 914 /**
 915  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 916  * @phba: pointer to lpfc HBA data structure.
 917  *
 918  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 919  * down the SLI Layer.
 920  *
 921  * Return codes
 922  *   void
 923  **/
 924 static void
 925 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 926 {
 927         struct lpfc_sli *psli = &phba->sli;
 928         struct lpfc_sli_ring *pring;
 929         LIST_HEAD(completions);
 930         int i;
 931
 932         for (i = 0; i < psli->num_rings; i++) {
 933                 pring = &psli->ring[i];
 934                 if (phba->sli_rev >= LPFC_SLI_REV4)
 935                         spin_lock_irq(&pring->ring_lock);
 936                 else
 937                         spin_lock_irq(&phba->hbalock);
 938                 /* At this point in time the HBA is either reset or DOA. Either
 939                  * way, nothing should be on txcmplq as it will NEVER complete.
 940                  */
 941                 list_splice_init(&pring->txcmplq, &completions);
 942                 pring->txcmplq_cnt = 0;
 943
 944                 if (phba->sli_rev >= LPFC_SLI_REV4)
 945                         spin_unlock_irq(&pring->ring_lock);
 946                 else
 947                         spin_unlock_irq(&phba->hbalock);
 948
 949                 /* Cancel all the IOCBs from the completions list */
 950                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 951                                       IOERR_SLI_ABORTED);
 952                 lpfc_sli_abort_iocb_ring(phba, pring);
 953         }
 954 }
 955
 956 /**
 957  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 958         int i;
 959  * @phba: pointer to lpfc HBA data structure.
 960  *
 961  * This routine will do uninitialization after the HBA is reset when bring
 962  * down the SLI Layer.
 963  *
 964  * Return codes
 965  *   0 - success.
 966  *   Any other value - error.
 967  **/
 968 static int
 969 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 970 {
 971         lpfc_hba_free_post_buf(phba);
 972         lpfc_hba_clean_txcmplq(phba);
 973         return 0;
 974 }
 975
 976 /**
 977  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 978  * @phba: pointer to lpfc HBA data structure.
 979  *
 980  * This routine will do uninitialization after the HBA is reset when bring
 981  * down the SLI Layer.
 982  *
 983  * Return codes
 984  *   0 - success.
 985  *   Any other value - error.
 986  **/
 987 static int
 988 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 989 {
 990         struct lpfc_scsi_buf *psb, *psb_next;
 991         LIST_HEAD(aborts);
 992         unsigned long iflag = 0;
 993         struct lpfc_sglq *sglq_entry = NULL;
 994         struct lpfc_sli *psli = &phba->sli;
 995         struct lpfc_sli_ring *pring;
 996
 997         lpfc_hba_free_post_buf(phba);
 998         lpfc_hba_clean_txcmplq(phba);
 999         pring = &psli->ring[LPFC_ELS_RING];
1000
1001         /* At this point in time the HBA is either reset or DOA. Either
1002          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1003          * on the lpfc_sgl_list so that it can either be freed if the
1004          * driver is unloading or reposted if the driver is restarting
1005          * the port.
1006          */
1007         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
1008                                         /* scsl_buf_list */
1009         /* abts_sgl_list_lock required because worker thread uses this
1010          * list.
1011          */
1012         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1013         list_for_each_entry(sglq_entry,
1014                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1015                 sglq_entry->state = SGL_FREED;
1016
1017         spin_lock(&pring->ring_lock);
1018         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1019                         &phba->sli4_hba.lpfc_sgl_list);
1020         spin_unlock(&pring->ring_lock);
1021         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1022         /* abts_scsi_buf_list_lock required because worker thread uses this
1023          * list.
1024          */
1025         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1026         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1027                         &aborts);
1028         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1029         spin_unlock_irq(&phba->hbalock);
1030
1031         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1032                 psb->pCmd = NULL;
1033                 psb->status = IOSTAT_SUCCESS;
1034         }
1035         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1036         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1037         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1038
1039         lpfc_sli4_free_sp_events(phba);
1040         return 0;
1041 }
1042
1043 /**
1044  * lpfc_hba_down_post - Wrapper func for hba down post routine
1045  * @phba: pointer to lpfc HBA data structure.
1046  *
1047  * This routine wraps the actual SLI3 or SLI4 routine for performing
1048  * uninitialization after the HBA is reset when bring down the SLI Layer.
1049  *
1050  * Return codes
1051  *   0 - success.
1052  *   Any other value - error.
1053  **/
1054 int
1055 lpfc_hba_down_post(struct lpfc_hba *phba)
1056 {
1057         return (*phba->lpfc_hba_down_post)(phba);
1058 }
1059
1060 /**
1061  * lpfc_hb_timeout - The HBA-timer timeout handler
1062  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1063  *
1064  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1065  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1066  * work-port-events bitmap and the worker thread is notified. This timeout
1067  * event will be used by the worker thread to invoke the actual timeout
1068  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1069  * be performed in the timeout handler and the HBA timeout event bit shall
1070  * be cleared by the worker thread after it has taken the event bitmap out.
1071  **/
1072 static void
1073 lpfc_hb_timeout(unsigned long ptr)
1074 {
1075         struct lpfc_hba *phba;
1076         uint32_t tmo_posted;
1077         unsigned long iflag;
1078
1079         phba = (struct lpfc_hba *)ptr;
1080
1081         /* Check for heart beat timeout conditions */
1082         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1083         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1084         if (!tmo_posted)
1085                 phba->pport->work_port_events |= WORKER_HB_TMO;
1086         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1087
1088         /* Tell the worker thread there is work to do */
1089         if (!tmo_posted)
1090                 lpfc_worker_wake_up(phba);
1091         return;
1092 }
1093
1094 /**
1095  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1096  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1097  *
1098  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1099  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1100  * work-port-events bitmap and the worker thread is notified. This timeout
1101  * event will be used by the worker thread to invoke the actual timeout
1102  * handler routine, lpfc_rrq_handler. Any periodical operations will
1103  * be performed in the timeout handler and the RRQ timeout event bit shall
1104  * be cleared by the worker thread after it has taken the event bitmap out.
1105  **/
1106 static void
1107 lpfc_rrq_timeout(unsigned long ptr)
1108 {
1109         struct lpfc_hba *phba;
1110         unsigned long iflag;
1111
1112         phba = (struct lpfc_hba *)ptr;
1113         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1114         if (!(phba->pport->load_flag & FC_UNLOADING))
1115                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1116         else
1117                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1118         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1119
1120         if (!(phba->pport->load_flag & FC_UNLOADING))
1121                 lpfc_worker_wake_up(phba);
1122 }
1123
1124 /**
1125  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1126  * @phba: pointer to lpfc hba data structure.
1127  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1128  *
1129  * This is the callback function to the lpfc heart-beat mailbox command.
1130  * If configured, the lpfc driver issues the heart-beat mailbox command to
1131  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1132  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1133  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1134  * heart-beat outstanding state. Once the mailbox command comes back and
1135  * no error conditions detected, the heart-beat mailbox command timer is
1136  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1137  * state is cleared for the next heart-beat. If the timer expired with the
1138  * heart-beat outstanding state set, the driver will put the HBA offline.
1139  **/
1140 static void
1141 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1142 {
1143         unsigned long drvr_flag;
1144
1145         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1146         phba->hb_outstanding = 0;
1147         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1148
1149         /* Check and reset heart-beat timer is necessary */
1150         mempool_free(pmboxq, phba->mbox_mem_pool);
1151         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1152                 !(phba->link_state == LPFC_HBA_ERROR) &&
1153                 !(phba->pport->load_flag & FC_UNLOADING))
1154                 mod_timer(&phba->hb_tmofunc,
1155                           jiffies +
1156                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1157         return;
1158 }
1159
1160 /**
1161  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1162  * @phba: pointer to lpfc hba data structure.
1163  *
1164  * This is the actual HBA-timer timeout handler to be invoked by the worker
1165  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1166  * handler performs any periodic operations needed for the device. If such
1167  * periodic event has already been attended to either in the interrupt handler
1168  * or by processing slow-ring or fast-ring events within the HBA-timer
1169  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1170  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1171  * is configured and there is no heart-beat mailbox command outstanding, a
1172  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1173  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1174  * to offline.
1175  **/
1176 void
1177 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1178 {
1179         struct lpfc_vport **vports;
1180         LPFC_MBOXQ_t *pmboxq;
1181         struct lpfc_dmabuf *buf_ptr;
1182         int retval, i;
1183         struct lpfc_sli *psli = &phba->sli;
1184         LIST_HEAD(completions);
1185
1186         vports = lpfc_create_vport_work_array(phba);
1187         if (vports != NULL)
1188                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1189                         lpfc_rcv_seq_check_edtov(vports[i]);
1190                         lpfc_fdmi_num_disc_check(vports[i]);
1191                 }
1192         lpfc_destroy_vport_work_array(phba, vports);
1193
1194         if ((phba->link_state == LPFC_HBA_ERROR) ||
1195                 (phba->pport->load_flag & FC_UNLOADING) ||
1196                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1197                 return;
1198
1199         spin_lock_irq(&phba->pport->work_port_lock);
1200
1201         if (time_after(phba->last_completion_time +
1202                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1203                         jiffies)) {
1204                 spin_unlock_irq(&phba->pport->work_port_lock);
1205                 if (!phba->hb_outstanding)
1206                         mod_timer(&phba->hb_tmofunc,
1207                                 jiffies +
1208                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1209                 else
1210                         mod_timer(&phba->hb_tmofunc,
1211                                 jiffies +
1212                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1213                 return;
1214         }
1215         spin_unlock_irq(&phba->pport->work_port_lock);
1216
1217         if (phba->elsbuf_cnt &&
1218                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1219                 spin_lock_irq(&phba->hbalock);
1220                 list_splice_init(&phba->elsbuf, &completions);
1221                 phba->elsbuf_cnt = 0;
1222                 phba->elsbuf_prev_cnt = 0;
1223                 spin_unlock_irq(&phba->hbalock);
1224
1225                 while (!list_empty(&completions)) {
1226                         list_remove_head(&completions, buf_ptr,
1227                                 struct lpfc_dmabuf, list);
1228                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1229                         kfree(buf_ptr);
1230                 }
1231         }
1232         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1233
1234         /* If there is no heart beat outstanding, issue a heartbeat command */
1235         if (phba->cfg_enable_hba_heartbeat) {
1236                 if (!phba->hb_outstanding) {
1237                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1238                                 (list_empty(&psli->mboxq))) {
1239                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1240                                                         GFP_KERNEL);
1241                                 if (!pmboxq) {
1242                                         mod_timer(&phba->hb_tmofunc,
1243                                                  jiffies +
1244                                                  msecs_to_jiffies(1000 *
1245                                                  LPFC_HB_MBOX_INTERVAL));
1246                                         return;
1247                                 }
1248
1249                                 lpfc_heart_beat(phba, pmboxq);
1250                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1251                                 pmboxq->vport = phba->pport;
1252                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1253                                                 MBX_NOWAIT);
1254
1255                                 if (retval != MBX_BUSY &&
1256                                         retval != MBX_SUCCESS) {
1257                                         mempool_free(pmboxq,
1258                                                         phba->mbox_mem_pool);
1259                                         mod_timer(&phba->hb_tmofunc,
1260                                                 jiffies +
1261                                                 msecs_to_jiffies(1000 *
1262                                                 LPFC_HB_MBOX_INTERVAL));
1263                                         return;
1264                                 }
1265                                 phba->skipped_hb = 0;
1266                                 phba->hb_outstanding = 1;
1267                         } else if (time_before_eq(phba->last_completion_time,
1268                                         phba->skipped_hb)) {
1269                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1270                                         "2857 Last completion time not "
1271                                         " updated in %d ms\n",
1272                                         jiffies_to_msecs(jiffies
1273                                                  - phba->last_completion_time));
1274                         } else
1275                                 phba->skipped_hb = jiffies;
1276
1277                         mod_timer(&phba->hb_tmofunc,
1278                                  jiffies +
1279                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1280                         return;
1281                 } else {
1282                         /*
1283                         * If heart beat timeout called with hb_outstanding set
1284                         * we need to give the hb mailbox cmd a chance to
1285                         * complete or TMO.
1286                         */
1287                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1288                                         "0459 Adapter heartbeat still out"
1289                                         "standing:last compl time was %d ms.\n",
1290                                         jiffies_to_msecs(jiffies
1291                                                  - phba->last_completion_time));
1292                         mod_timer(&phba->hb_tmofunc,
1293                                 jiffies +
1294                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1295                 }
1296         } else {
1297                         mod_timer(&phba->hb_tmofunc,
1298                                 jiffies +
1299                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1300         }
1301 }
1302
1303 /**
1304  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1305  * @phba: pointer to lpfc hba data structure.
1306  *
1307  * This routine is called to bring the HBA offline when HBA hardware error
1308  * other than Port Error 6 has been detected.
1309  **/
1310 static void
1311 lpfc_offline_eratt(struct lpfc_hba *phba)
1312 {
1313         struct lpfc_sli   *psli = &phba->sli;
1314
1315         spin_lock_irq(&phba->hbalock);
1316         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1317         spin_unlock_irq(&phba->hbalock);
1318         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1319
1320         lpfc_offline(phba);
1321         lpfc_reset_barrier(phba);
1322         spin_lock_irq(&phba->hbalock);
1323         lpfc_sli_brdreset(phba);
1324         spin_unlock_irq(&phba->hbalock);
1325         lpfc_hba_down_post(phba);
1326         lpfc_sli_brdready(phba, HS_MBRDY);
1327         lpfc_unblock_mgmt_io(phba);
1328         phba->link_state = LPFC_HBA_ERROR;
1329         return;
1330 }
1331
1332 /**
1333  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1334  * @phba: pointer to lpfc hba data structure.
1335  *
1336  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1337  * other than Port Error 6 has been detected.
1338  **/
1339 void
1340 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1341 {
1342         spin_lock_irq(&phba->hbalock);
1343         phba->link_state = LPFC_HBA_ERROR;
1344         spin_unlock_irq(&phba->hbalock);
1345
1346         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1347         lpfc_offline(phba);
1348         lpfc_hba_down_post(phba);
1349         lpfc_unblock_mgmt_io(phba);
1350 }
1351
1352 /**
1353  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1354  * @phba: pointer to lpfc hba data structure.
1355  *
1356  * This routine is invoked to handle the deferred HBA hardware error
1357  * conditions. This type of error is indicated by HBA by setting ER1
1358  * and another ER bit in the host status register. The driver will
1359  * wait until the ER1 bit clears before handling the error condition.
1360  **/
1361 static void
1362 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1363 {
1364         uint32_t old_host_status = phba->work_hs;
1365         struct lpfc_sli *psli = &phba->sli;
1366
1367         /* If the pci channel is offline, ignore possible errors,
1368          * since we cannot communicate with the pci card anyway.
1369          */
1370         if (pci_channel_offline(phba->pcidev)) {
1371                 spin_lock_irq(&phba->hbalock);
1372                 phba->hba_flag &= ~DEFER_ERATT;
1373                 spin_unlock_irq(&phba->hbalock);
1374                 return;
1375         }
1376
1377         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1378                 "0479 Deferred Adapter Hardware Error "
1379                 "Data: x%x x%x x%x\n",
1380                 phba->work_hs,
1381                 phba->work_status[0], phba->work_status[1]);
1382
1383         spin_lock_irq(&phba->hbalock);
1384         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1385         spin_unlock_irq(&phba->hbalock);
1386
1387
1388         /*
1389          * Firmware stops when it triggred erratt. That could cause the I/Os
1390          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1391          * SCSI layer retry it after re-establishing link.
1392          */
1393         lpfc_sli_abort_fcp_rings(phba);
1394
1395         /*
1396          * There was a firmware error. Take the hba offline and then
1397          * attempt to restart it.
1398          */
1399         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1400         lpfc_offline(phba);
1401
1402         /* Wait for the ER1 bit to clear.*/
1403         while (phba->work_hs & HS_FFER1) {
1404                 msleep(100);
1405                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1406                         phba->work_hs = UNPLUG_ERR ;
1407                         break;
1408                 }
1409                 /* If driver is unloading let the worker thread continue */
1410                 if (phba->pport->load_flag & FC_UNLOADING) {
1411                         phba->work_hs = 0;
1412                         break;
1413                 }
1414         }
1415
1416         /*
1417          * This is to ptrotect against a race condition in which
1418          * first write to the host attention register clear the
1419          * host status register.
1420          */
1421         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1422                 phba->work_hs = old_host_status & ~HS_FFER1;
1423
1424         spin_lock_irq(&phba->hbalock);
1425         phba->hba_flag &= ~DEFER_ERATT;
1426         spin_unlock_irq(&phba->hbalock);
1427         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1428         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1429 }
1430
1431 static void
1432 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1433 {
1434         struct lpfc_board_event_header board_event;
1435         struct Scsi_Host *shost;
1436
1437         board_event.event_type = FC_REG_BOARD_EVENT;
1438         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1439         shost = lpfc_shost_from_vport(phba->pport);
1440         fc_host_post_vendor_event(shost, fc_get_event_number(),
1441                                   sizeof(board_event),
1442                                   (char *) &board_event,
1443                                   LPFC_NL_VENDOR_ID);
1444 }
1445
1446 /**
1447  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1448  * @phba: pointer to lpfc hba data structure.
1449  *
1450  * This routine is invoked to handle the following HBA hardware error
1451  * conditions:
1452  * 1 - HBA error attention interrupt
1453  * 2 - DMA ring index out of range
1454  * 3 - Mailbox command came back as unknown
1455  **/
1456 static void
1457 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1458 {
1459         struct lpfc_vport *vport = phba->pport;
1460         struct lpfc_sli   *psli = &phba->sli;
1461         uint32_t event_data;
1462         unsigned long temperature;
1463         struct temp_event temp_event_data;
1464         struct Scsi_Host  *shost;
1465
1466         /* If the pci channel is offline, ignore possible errors,
1467          * since we cannot communicate with the pci card anyway.
1468          */
1469         if (pci_channel_offline(phba->pcidev)) {
1470                 spin_lock_irq(&phba->hbalock);
1471                 phba->hba_flag &= ~DEFER_ERATT;
1472                 spin_unlock_irq(&phba->hbalock);
1473                 return;
1474         }
1475
1476         /* If resets are disabled then leave the HBA alone and return */
1477         if (!phba->cfg_enable_hba_reset)
1478                 return;
1479
1480         /* Send an internal error event to mgmt application */
1481         lpfc_board_errevt_to_mgmt(phba);
1482
1483         if (phba->hba_flag & DEFER_ERATT)
1484                 lpfc_handle_deferred_eratt(phba);
1485
1486         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1487                 if (phba->work_hs & HS_FFER6)
1488                         /* Re-establishing Link */
1489                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1490                                         "1301 Re-establishing Link "
1491                                         "Data: x%x x%x x%x\n",
1492                                         phba->work_hs, phba->work_status[0],
1493                                         phba->work_status[1]);
1494                 if (phba->work_hs & HS_FFER8)
1495                         /* Device Zeroization */
1496                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1497                                         "2861 Host Authentication device "
1498                                         "zeroization Data:x%x x%x x%x\n",
1499                                         phba->work_hs, phba->work_status[0],
1500                                         phba->work_status[1]);
1501
1502                 spin_lock_irq(&phba->hbalock);
1503                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1504                 spin_unlock_irq(&phba->hbalock);
1505
1506                 /*
1507                 * Firmware stops when it triggled erratt with HS_FFER6.
1508                 * That could cause the I/Os dropped by the firmware.
1509                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1510                 * retry it after re-establishing link.
1511                 */
1512                 lpfc_sli_abort_fcp_rings(phba);
1513
1514                 /*
1515                  * There was a firmware error.  Take the hba offline and then
1516                  * attempt to restart it.
1517                  */
1518                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1519                 lpfc_offline(phba);
1520                 lpfc_sli_brdrestart(phba);
1521                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1522                         lpfc_unblock_mgmt_io(phba);
1523                         return;
1524                 }
1525                 lpfc_unblock_mgmt_io(phba);
1526         } else if (phba->work_hs & HS_CRIT_TEMP) {
1527                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1528                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1529                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1530                 temp_event_data.data = (uint32_t)temperature;
1531
1532                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1533                                 "0406 Adapter maximum temperature exceeded "
1534                                 "(%ld), taking this port offline "
1535                                 "Data: x%x x%x x%x\n",
1536                                 temperature, phba->work_hs,
1537                                 phba->work_status[0], phba->work_status[1]);
1538
1539                 shost = lpfc_shost_from_vport(phba->pport);
1540                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1541                                           sizeof(temp_event_data),
1542                                           (char *) &temp_event_data,
1543                                           SCSI_NL_VID_TYPE_PCI
1544                                           | PCI_VENDOR_ID_EMULEX);
1545
1546                 spin_lock_irq(&phba->hbalock);
1547                 phba->over_temp_state = HBA_OVER_TEMP;
1548                 spin_unlock_irq(&phba->hbalock);
1549                 lpfc_offline_eratt(phba);
1550
1551         } else {
1552                 /* The if clause above forces this code path when the status
1553                  * failure is a value other than FFER6. Do not call the offline
1554                  * twice. This is the adapter hardware error path.
1555                  */
1556                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1557                                 "0457 Adapter Hardware Error "
1558                                 "Data: x%x x%x x%x\n",
1559                                 phba->work_hs,
1560                                 phba->work_status[0], phba->work_status[1]);
1561
1562                 event_data = FC_REG_DUMP_EVENT;
1563                 shost = lpfc_shost_from_vport(vport);
1564                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1565                                 sizeof(event_data), (char *) &event_data,
1566                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1567
1568                 lpfc_offline_eratt(phba);
1569         }
1570         return;
1571 }
1572
1573 /**
1574  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1575  * @phba: pointer to lpfc hba data structure.
1576  * @mbx_action: flag for mailbox shutdown action.
1577  *
1578  * This routine is invoked to perform an SLI4 port PCI function reset in
1579  * response to port status register polling attention. It waits for port
1580  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1581  * During this process, interrupt vectors are freed and later requested
1582  * for handling possible port resource change.
1583  **/
1584 static int
1585 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1586                             bool en_rn_msg)
1587 {
1588         int rc;
1589         uint32_t intr_mode;
1590
1591         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
1592             LPFC_SLI_INTF_IF_TYPE_2) {
1593                 /*
1594                  * On error status condition, driver need to wait for port
1595                  * ready before performing reset.
1596                  */
1597                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1598                 if (rc)
1599                         return rc;
1600         }
1601
1602         /* need reset: attempt for port recovery */
1603         if (en_rn_msg)
1604                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1605                                 "2887 Reset Needed: Attempting Port "
1606                                 "Recovery...\n");
1607         lpfc_offline_prep(phba, mbx_action);
1608         lpfc_offline(phba);
1609         /* release interrupt for possible resource change */
1610         lpfc_sli4_disable_intr(phba);
1611         lpfc_sli_brdrestart(phba);
1612         /* request and enable interrupt */
1613         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1614         if (intr_mode == LPFC_INTR_ERROR) {
1615                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1616                                 "3175 Failed to enable interrupt\n");
1617                 return -EIO;
1618         }
1619         phba->intr_mode = intr_mode;
1620         rc = lpfc_online(phba);
1621         if (rc == 0)
1622                 lpfc_unblock_mgmt_io(phba);
1623
1624         return rc;
1625 }
1626
1627 /**
1628  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1629  * @phba: pointer to lpfc hba data structure.
1630  *
1631  * This routine is invoked to handle the SLI4 HBA hardware error attention
1632  * conditions.
1633  **/
1634 static void
1635 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1636 {
1637         struct lpfc_vport *vport = phba->pport;
1638         uint32_t event_data;
1639         struct Scsi_Host *shost;
1640         uint32_t if_type;
1641         struct lpfc_register portstat_reg = {0};
1642         uint32_t reg_err1, reg_err2;
1643         uint32_t uerrlo_reg, uemasklo_reg;
1644         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1645         bool en_rn_msg = true;
1646         struct temp_event temp_event_data;
1647         struct lpfc_register portsmphr_reg;
1648         int rc, i;
1649
1650         /* If the pci channel is offline, ignore possible errors, since
1651          * we cannot communicate with the pci card anyway.
1652          */
1653         if (pci_channel_offline(phba->pcidev))
1654                 return;
1655
1656         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1657         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1658         switch (if_type) {
1659         case LPFC_SLI_INTF_IF_TYPE_0:
1660                 pci_rd_rc1 = lpfc_readl(
1661                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1662                                 &uerrlo_reg);
1663                 pci_rd_rc2 = lpfc_readl(
1664                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1665                                 &uemasklo_reg);
1666                 /* consider PCI bus read error as pci_channel_offline */
1667                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1668                         return;
1669                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1670                         lpfc_sli4_offline_eratt(phba);
1671                         return;
1672                 }
1673                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1674                                 "7623 Checking UE recoverable");
1675
1676                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1677                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1678                                        &portsmphr_reg.word0))
1679                                 continue;
1680
1681                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1682                                                    &portsmphr_reg);
1683                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1684                             LPFC_PORT_SEM_UE_RECOVERABLE)
1685                                 break;
1686                         /*Sleep for 1Sec, before checking SEMAPHORE */
1687                         msleep(1000);
1688                 }
1689
1690                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1691                                 "4827 smphr_port_status x%x : Waited %dSec",
1692                                 smphr_port_status, i);
1693
1694                 /* Recoverable UE, reset the HBA device */
1695                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1696                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1697                         for (i = 0; i < 20; i++) {
1698                                 msleep(1000);
1699                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1700                                     &portsmphr_reg.word0) &&
1701                                     (LPFC_POST_STAGE_PORT_READY ==
1702                                      bf_get(lpfc_port_smphr_port_status,
1703                                      &portsmphr_reg))) {
1704                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
1705                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
1706                                         if (rc == 0)
1707                                                 return;
1708                                         lpfc_printf_log(phba,
1709                                                 KERN_ERR, LOG_INIT,
1710                                                 "4215 Failed to recover UE");
1711                                         break;
1712                                 }
1713                         }
1714                 }
1715                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1716                                 "7624 Firmware not ready: Failing UE recovery,"
1717                                 " waited %dSec", i);
1718                 lpfc_sli4_offline_eratt(phba);
1719                 break;
1720
1721         case LPFC_SLI_INTF_IF_TYPE_2:
1722                 pci_rd_rc1 = lpfc_readl(
1723                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1724                                 &portstat_reg.word0);
1725                 /* consider PCI bus read error as pci_channel_offline */
1726                 if (pci_rd_rc1 == -EIO) {
1727                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1728                                 "3151 PCI bus read access failure: x%x\n",
1729                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1730                         return;
1731                 }
1732                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1733                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1734                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1735                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1736                                 "2889 Port Overtemperature event, "
1737                                 "taking port offline Data: x%x x%x\n",
1738                                 reg_err1, reg_err2);
1739
1740                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
1741                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1742                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1743                         temp_event_data.data = 0xFFFFFFFF;
1744
1745                         shost = lpfc_shost_from_vport(phba->pport);
1746                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1747                                                   sizeof(temp_event_data),
1748                                                   (char *)&temp_event_data,
1749                                                   SCSI_NL_VID_TYPE_PCI
1750                                                   | PCI_VENDOR_ID_EMULEX);
1751
1752                         spin_lock_irq(&phba->hbalock);
1753                         phba->over_temp_state = HBA_OVER_TEMP;
1754                         spin_unlock_irq(&phba->hbalock);
1755                         lpfc_sli4_offline_eratt(phba);
1756                         return;
1757                 }
1758                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1759                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1760                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1761                                         "3143 Port Down: Firmware Update "
1762                                         "Detected\n");
1763                         en_rn_msg = false;
1764                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1765                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1766                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1767                                         "3144 Port Down: Debug Dump\n");
1768                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1769                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1770                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1771                                         "3145 Port Down: Provisioning\n");
1772
1773                 /* If resets are disabled then leave the HBA alone and return */
1774                 if (!phba->cfg_enable_hba_reset)
1775                         return;
1776
1777                 /* Check port status register for function reset */
1778                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1779                                 en_rn_msg);
1780                 if (rc == 0) {
1781                         /* don't report event on forced debug dump */
1782                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1783                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1784                                 return;
1785                         else
1786                                 break;
1787                 }
1788                 /* fall through for not able to recover */
1789                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1790                                 "3152 Unrecoverable error, bring the port "
1791                                 "offline\n");
1792                 lpfc_sli4_offline_eratt(phba);
1793                 break;
1794         case LPFC_SLI_INTF_IF_TYPE_1:
1795         default:
1796                 break;
1797         }
1798         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1799                         "3123 Report dump event to upper layer\n");
1800         /* Send an internal error event to mgmt application */
1801         lpfc_board_errevt_to_mgmt(phba);
1802
1803         event_data = FC_REG_DUMP_EVENT;
1804         shost = lpfc_shost_from_vport(vport);
1805         fc_host_post_vendor_event(shost, fc_get_event_number(),
1806                                   sizeof(event_data), (char *) &event_data,
1807                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1808 }
1809
1810 /**
1811  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1812  * @phba: pointer to lpfc HBA data structure.
1813  *
1814  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1815  * routine from the API jump table function pointer from the lpfc_hba struct.
1816  *
1817  * Return codes
1818  *   0 - success.
1819  *   Any other value - error.
1820  **/
1821 void
1822 lpfc_handle_eratt(struct lpfc_hba *phba)
1823 {
1824         (*phba->lpfc_handle_eratt)(phba);
1825 }
1826
1827 /**
1828  * lpfc_handle_latt - The HBA link event handler
1829  * @phba: pointer to lpfc hba data structure.
1830  *
1831  * This routine is invoked from the worker thread to handle a HBA host
1832  * attention link event.
1833  **/
1834 void
1835 lpfc_handle_latt(struct lpfc_hba *phba)
1836 {
1837         struct lpfc_vport *vport = phba->pport;
1838         struct lpfc_sli   *psli = &phba->sli;
1839         LPFC_MBOXQ_t *pmb;
1840         volatile uint32_t control;
1841         struct lpfc_dmabuf *mp;
1842         int rc = 0;
1843
1844         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1845         if (!pmb) {
1846                 rc = 1;
1847                 goto lpfc_handle_latt_err_exit;
1848         }
1849
1850         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1851         if (!mp) {
1852                 rc = 2;
1853                 goto lpfc_handle_latt_free_pmb;
1854         }
1855
1856         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1857         if (!mp->virt) {
1858                 rc = 3;
1859                 goto lpfc_handle_latt_free_mp;
1860         }
1861
1862         /* Cleanup any outstanding ELS commands */
1863         lpfc_els_flush_all_cmd(phba);
1864
1865         psli->slistat.link_event++;
1866         lpfc_read_topology(phba, pmb, mp);
1867         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1868         pmb->vport = vport;
1869         /* Block ELS IOCBs until we have processed this mbox command */
1870         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1871         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1872         if (rc == MBX_NOT_FINISHED) {
1873                 rc = 4;
1874                 goto lpfc_handle_latt_free_mbuf;
1875         }
1876
1877         /* Clear Link Attention in HA REG */
1878         spin_lock_irq(&phba->hbalock);
1879         writel(HA_LATT, phba->HAregaddr);
1880         readl(phba->HAregaddr); /* flush */
1881         spin_unlock_irq(&phba->hbalock);
1882
1883         return;
1884
1885 lpfc_handle_latt_free_mbuf:
1886         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1887         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1888 lpfc_handle_latt_free_mp:
1889         kfree(mp);
1890 lpfc_handle_latt_free_pmb:
1891         mempool_free(pmb, phba->mbox_mem_pool);
1892 lpfc_handle_latt_err_exit:
1893         /* Enable Link attention interrupts */
1894         spin_lock_irq(&phba->hbalock);
1895         psli->sli_flag |= LPFC_PROCESS_LA;
1896         control = readl(phba->HCregaddr);
1897         control |= HC_LAINT_ENA;
1898         writel(control, phba->HCregaddr);
1899         readl(phba->HCregaddr); /* flush */
1900
1901         /* Clear Link Attention in HA REG */
1902         writel(HA_LATT, phba->HAregaddr);
1903         readl(phba->HAregaddr); /* flush */
1904         spin_unlock_irq(&phba->hbalock);
1905         lpfc_linkdown(phba);
1906         phba->link_state = LPFC_HBA_ERROR;
1907
1908         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1909                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1910
1911         return;
1912 }
1913
1914 /**
1915  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1916  * @phba: pointer to lpfc hba data structure.
1917  * @vpd: pointer to the vital product data.
1918  * @len: length of the vital product data in bytes.
1919  *
1920  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1921  * an array of characters. In this routine, the ModelName, ProgramType, and
1922  * ModelDesc, etc. fields of the phba data structure will be populated.
1923  *
1924  * Return codes
1925  *   0 - pointer to the VPD passed in is NULL
1926  *   1 - success
1927  **/
1928 int
1929 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1930 {
1931         uint8_t lenlo, lenhi;
1932         int Length;
1933         int i, j;
1934         int finished = 0;
1935         int index = 0;
1936
1937         if (!vpd)
1938                 return 0;
1939
1940         /* Vital Product */
1941         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1942                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1943                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1944                         (uint32_t) vpd[3]);
1945         while (!finished && (index < (len - 4))) {
1946                 switch (vpd[index]) {
1947                 case 0x82:
1948                 case 0x91:
1949                         index += 1;
1950                         lenlo = vpd[index];
1951                         index += 1;
1952                         lenhi = vpd[index];
1953                         index += 1;
1954                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1955                         index += i;
1956                         break;
1957                 case 0x90:
1958                         index += 1;
1959                         lenlo = vpd[index];
1960                         index += 1;
1961                         lenhi = vpd[index];
1962                         index += 1;
1963                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1964                         if (Length > len - index)
1965                                 Length = len - index;
1966                         while (Length > 0) {
1967                         /* Look for Serial Number */
1968                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1969                                 index += 2;
1970                                 i = vpd[index];
1971                                 index += 1;
1972                                 j = 0;
1973                                 Length -= (3+i);
1974                                 while(i--) {
1975                                         phba->SerialNumber[j++] = vpd[index++];
1976                                         if (j == 31)
1977                                                 break;
1978                                 }
1979                                 phba->SerialNumber[j] = 0;
1980                                 continue;
1981                         }
1982                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1983                                 phba->vpd_flag |= VPD_MODEL_DESC;
1984                                 index += 2;
1985                                 i = vpd[index];
1986                                 index += 1;
1987                                 j = 0;
1988                                 Length -= (3+i);
1989                                 while(i--) {
1990                                         phba->ModelDesc[j++] = vpd[index++];
1991                                         if (j == 255)
1992                                                 break;
1993                                 }
1994                                 phba->ModelDesc[j] = 0;
1995                                 continue;
1996                         }
1997                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1998                                 phba->vpd_flag |= VPD_MODEL_NAME;
1999                                 index += 2;
2000                                 i = vpd[index];
2001                                 index += 1;
2002                                 j = 0;
2003                                 Length -= (3+i);
2004                                 while(i--) {
2005                                         phba->ModelName[j++] = vpd[index++];
2006                                         if (j == 79)
2007                                                 break;
2008                                 }
2009                                 phba->ModelName[j] = 0;
2010                                 continue;
2011                         }
2012                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2013                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2014                                 index += 2;
2015                                 i = vpd[index];
2016                                 index += 1;
2017                                 j = 0;
2018                                 Length -= (3+i);
2019                                 while(i--) {
2020                                         phba->ProgramType[j++] = vpd[index++];
2021                                         if (j == 255)
2022                                                 break;
2023                                 }
2024                                 phba->ProgramType[j] = 0;
2025                                 continue;
2026                         }
2027                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2028                                 phba->vpd_flag |= VPD_PORT;
2029                                 index += 2;
2030                                 i = vpd[index];
2031                                 index += 1;
2032                                 j = 0;
2033                                 Length -= (3+i);
2034                                 while(i--) {
2035                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2036                                             (phba->sli4_hba.pport_name_sta ==
2037                                              LPFC_SLI4_PPNAME_GET)) {
2038                                                 j++;
2039                                                 index++;
2040                                         } else
2041                                                 phba->Port[j++] = vpd[index++];
2042                                         if (j == 19)
2043                                                 break;
2044                                 }
2045                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2046                                     (phba->sli4_hba.pport_name_sta ==
2047                                      LPFC_SLI4_PPNAME_NON))
2048                                         phba->Port[j] = 0;
2049                                 continue;
2050                         }
2051                         else {
2052                                 index += 2;
2053                                 i = vpd[index];
2054                                 index += 1;
2055                                 index += i;
2056                                 Length -= (3 + i);
2057                         }
2058                 }
2059                 finished = 0;
2060                 break;
2061                 case 0x78:
2062                         finished = 1;
2063                         break;
2064                 default:
2065                         index ++;
2066                         break;
2067                 }
2068         }
2069
2070         return(1);
2071 }
2072
2073 /**
2074  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2075  * @phba: pointer to lpfc hba data structure.
2076  * @mdp: pointer to the data structure to hold the derived model name.
2077  * @descp: pointer to the data structure to hold the derived description.
2078  *
2079  * This routine retrieves HBA's description based on its registered PCI device
2080  * ID. The @descp passed into this function points to an array of 256 chars. It
2081  * shall be returned with the model name, maximum speed, and the host bus type.
2082  * The @mdp passed into this function points to an array of 80 chars. When the
2083  * function returns, the @mdp will be filled with the model name.
2084  **/
2085 static void
2086 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2087 {
2088         lpfc_vpd_t *vp;
2089         uint16_t dev_id = phba->pcidev->device;
2090         int max_speed;
2091         int GE = 0;
2092         int oneConnect = 0; /* default is not a oneConnect */
2093         struct {
2094                 char *name;
2095                 char *bus;
2096                 char *function;
2097         } m = {"<Unknown>", "", ""};
2098
2099         if (mdp && mdp[0] != '\0'
2100                 && descp && descp[0] != '\0')
2101                 return;
2102
2103         if (phba->lmt & LMT_32Gb)
2104                 max_speed = 32;
2105         else if (phba->lmt & LMT_16Gb)
2106                 max_speed = 16;
2107         else if (phba->lmt & LMT_10Gb)
2108                 max_speed = 10;
2109         else if (phba->lmt & LMT_8Gb)
2110                 max_speed = 8;
2111         else if (phba->lmt & LMT_4Gb)
2112                 max_speed = 4;
2113         else if (phba->lmt & LMT_2Gb)
2114                 max_speed = 2;
2115         else if (phba->lmt & LMT_1Gb)
2116                 max_speed = 1;
2117         else
2118                 max_speed = 0;
2119
2120         vp = &phba->vpd;
2121
2122         switch (dev_id) {
2123         case PCI_DEVICE_ID_FIREFLY:
2124                 m = (typeof(m)){"LP6000", "PCI",
2125                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2126                 break;
2127         case PCI_DEVICE_ID_SUPERFLY:
2128                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2129                         m = (typeof(m)){"LP7000", "PCI", ""};
2130                 else
2131                         m = (typeof(m)){"LP7000E", "PCI", ""};
2132                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2133                 break;
2134         case PCI_DEVICE_ID_DRAGONFLY:
2135                 m = (typeof(m)){"LP8000", "PCI",
2136                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2137                 break;
2138         case PCI_DEVICE_ID_CENTAUR:
2139                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2140                         m = (typeof(m)){"LP9002", "PCI", ""};
2141                 else
2142                         m = (typeof(m)){"LP9000", "PCI", ""};
2143                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2144                 break;
2145         case PCI_DEVICE_ID_RFLY:
2146                 m = (typeof(m)){"LP952", "PCI",
2147                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2148                 break;
2149         case PCI_DEVICE_ID_PEGASUS:
2150                 m = (typeof(m)){"LP9802", "PCI-X",
2151                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2152                 break;
2153         case PCI_DEVICE_ID_THOR:
2154                 m = (typeof(m)){"LP10000", "PCI-X",
2155                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2156                 break;
2157         case PCI_DEVICE_ID_VIPER:
2158                 m = (typeof(m)){"LPX1000",  "PCI-X",
2159                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2160                 break;
2161         case PCI_DEVICE_ID_PFLY:
2162                 m = (typeof(m)){"LP982", "PCI-X",
2163                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2164                 break;
2165         case PCI_DEVICE_ID_TFLY:
2166                 m = (typeof(m)){"LP1050", "PCI-X",
2167                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2168                 break;
2169         case PCI_DEVICE_ID_HELIOS:
2170                 m = (typeof(m)){"LP11000", "PCI-X2",
2171                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2172                 break;
2173         case PCI_DEVICE_ID_HELIOS_SCSP:
2174                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2175                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2176                 break;
2177         case PCI_DEVICE_ID_HELIOS_DCSP:
2178                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2179                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2180                 break;
2181         case PCI_DEVICE_ID_NEPTUNE:
2182                 m = (typeof(m)){"LPe1000", "PCIe",
2183                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2184                 break;
2185         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2186                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2187                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2188                 break;
2189         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2190                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2191                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2192                 break;
2193         case PCI_DEVICE_ID_BMID:
2194                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2195                 break;
2196         case PCI_DEVICE_ID_BSMB:
2197                 m = (typeof(m)){"LP111", "PCI-X2",
2198                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2199                 break;
2200         case PCI_DEVICE_ID_ZEPHYR:
2201                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2202                 break;
2203         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2204                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2205                 break;
2206         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2207                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2208                 GE = 1;
2209                 break;
2210         case PCI_DEVICE_ID_ZMID:
2211                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2212                 break;
2213         case PCI_DEVICE_ID_ZSMB:
2214                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2215                 break;
2216         case PCI_DEVICE_ID_LP101:
2217                 m = (typeof(m)){"LP101", "PCI-X",
2218                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2219                 break;
2220         case PCI_DEVICE_ID_LP10000S:
2221                 m = (typeof(m)){"LP10000-S", "PCI",
2222                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2223                 break;
2224         case PCI_DEVICE_ID_LP11000S:
2225                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2226                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2227                 break;
2228         case PCI_DEVICE_ID_LPE11000S:
2229                 m = (typeof(m)){"LPe11000-S", "PCIe",
2230                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2231                 break;
2232         case PCI_DEVICE_ID_SAT:
2233                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2234                 break;
2235         case PCI_DEVICE_ID_SAT_MID:
2236                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2237                 break;
2238         case PCI_DEVICE_ID_SAT_SMB:
2239                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2240                 break;
2241         case PCI_DEVICE_ID_SAT_DCSP:
2242                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2243                 break;
2244         case PCI_DEVICE_ID_SAT_SCSP:
2245                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2246                 break;
2247         case PCI_DEVICE_ID_SAT_S:
2248                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2249                 break;
2250         case PCI_DEVICE_ID_HORNET:
2251                 m = (typeof(m)){"LP21000", "PCIe",
2252                                 "Obsolete, Unsupported FCoE Adapter"};
2253                 GE = 1;
2254                 break;
2255         case PCI_DEVICE_ID_PROTEUS_VF:
2256                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2257                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2258                 break;
2259         case PCI_DEVICE_ID_PROTEUS_PF:
2260                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2261                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2262                 break;
2263         case PCI_DEVICE_ID_PROTEUS_S:
2264                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2265                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2266                 break;
2267         case PCI_DEVICE_ID_TIGERSHARK:
2268                 oneConnect = 1;
2269                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2270                 break;
2271         case PCI_DEVICE_ID_TOMCAT:
2272                 oneConnect = 1;
2273                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2274                 break;
2275         case PCI_DEVICE_ID_FALCON:
2276                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2277                                 "EmulexSecure Fibre"};
2278                 break;
2279         case PCI_DEVICE_ID_BALIUS:
2280                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2281                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2282                 break;
2283         case PCI_DEVICE_ID_LANCER_FC:
2284                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2285                 break;
2286         case PCI_DEVICE_ID_LANCER_FC_VF:
2287                 m = (typeof(m)){"LPe16000", "PCIe",
2288                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2289                 break;
2290         case PCI_DEVICE_ID_LANCER_FCOE:
2291                 oneConnect = 1;
2292                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2293                 break;
2294         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2295                 oneConnect = 1;
2296                 m = (typeof(m)){"OCe15100", "PCIe",
2297                                 "Obsolete, Unsupported FCoE"};
2298                 break;
2299         case PCI_DEVICE_ID_LANCER_G6_FC:
2300                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2301                 break;
2302         case PCI_DEVICE_ID_SKYHAWK:
2303         case PCI_DEVICE_ID_SKYHAWK_VF:
2304                 oneConnect = 1;
2305                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2306                 break;
2307         default:
2308                 m = (typeof(m)){"Unknown", "", ""};
2309                 break;
2310         }
2311
2312         if (mdp && mdp[0] == '\0')
2313                 snprintf(mdp, 79,"%s", m.name);
2314         /*
2315          * oneConnect hba requires special processing, they are all initiators
2316          * and we put the port number on the end
2317          */
2318         if (descp && descp[0] == '\0') {
2319                 if (oneConnect)
2320                         snprintf(descp, 255,
2321                                 "Emulex OneConnect %s, %s Initiator %s",
2322                                 m.name, m.function,
2323                                 phba->Port);
2324                 else if (max_speed == 0)
2325                         snprintf(descp, 255,
2326                                 "Emulex %s %s %s",
2327                                 m.name, m.bus, m.function);
2328                 else
2329                         snprintf(descp, 255,
2330                                 "Emulex %s %d%s %s %s",
2331                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2332                                 m.bus, m.function);
2333         }
2334 }
2335
2336 /**
2337  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2338  * @phba: pointer to lpfc hba data structure.
2339  * @pring: pointer to a IOCB ring.
2340  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2341  *
2342  * This routine posts a given number of IOCBs with the associated DMA buffer
2343  * descriptors specified by the cnt argument to the given IOCB ring.
2344  *
2345  * Return codes
2346  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2347  **/
2348 int
2349 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2350 {
2351         IOCB_t *icmd;
2352         struct lpfc_iocbq *iocb;
2353         struct lpfc_dmabuf *mp1, *mp2;
2354
2355         cnt += pring->missbufcnt;
2356
2357         /* While there are buffers to post */
2358         while (cnt > 0) {
2359                 /* Allocate buffer for  command iocb */
2360                 iocb = lpfc_sli_get_iocbq(phba);
2361                 if (iocb == NULL) {
2362                         pring->missbufcnt = cnt;
2363                         return cnt;
2364                 }
2365                 icmd = &iocb->iocb;
2366
2367                 /* 2 buffers can be posted per command */
2368                 /* Allocate buffer to post */
2369                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2370                 if (mp1)
2371                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2372                 if (!mp1 || !mp1->virt) {
2373                         kfree(mp1);
2374                         lpfc_sli_release_iocbq(phba, iocb);
2375                         pring->missbufcnt = cnt;
2376                         return cnt;
2377                 }
2378
2379                 INIT_LIST_HEAD(&mp1->list);
2380                 /* Allocate buffer to post */
2381                 if (cnt > 1) {
2382                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2383                         if (mp2)
2384                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2385                                                             &mp2->phys);
2386                         if (!mp2 || !mp2->virt) {
2387                                 kfree(mp2);
2388                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2389                                 kfree(mp1);
2390                                 lpfc_sli_release_iocbq(phba, iocb);
2391                                 pring->missbufcnt = cnt;
2392                                 return cnt;
2393                         }
2394
2395                         INIT_LIST_HEAD(&mp2->list);
2396                 } else {
2397                         mp2 = NULL;
2398                 }
2399
2400                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2401                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2402                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2403                 icmd->ulpBdeCount = 1;
2404                 cnt--;
2405                 if (mp2) {
2406                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2407                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2408                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2409                         cnt--;
2410                         icmd->ulpBdeCount = 2;
2411                 }
2412
2413                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2414                 icmd->ulpLe = 1;
2415
2416                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2417                     IOCB_ERROR) {
2418                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2419                         kfree(mp1);
2420                         cnt++;
2421                         if (mp2) {
2422                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2423                                 kfree(mp2);
2424                                 cnt++;
2425                         }
2426                         lpfc_sli_release_iocbq(phba, iocb);
2427                         pring->missbufcnt = cnt;
2428                         return cnt;
2429                 }
2430                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2431                 if (mp2)
2432                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2433         }
2434         pring->missbufcnt = 0;
2435         return 0;
2436 }
2437
2438 /**
2439  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2440  * @phba: pointer to lpfc hba data structure.
2441  *
2442  * This routine posts initial receive IOCB buffers to the ELS ring. The
2443  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2444  * set to 64 IOCBs.
2445  *
2446  * Return codes
2447  *   0 - success (currently always success)
2448  **/
2449 static int
2450 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2451 {
2452         struct lpfc_sli *psli = &phba->sli;
2453
2454         /* Ring 0, ELS / CT buffers */
2455         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2456         /* Ring 2 - FCP no buffers needed */
2457
2458         return 0;
2459 }
2460
2461 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2462
2463 /**
2464  * lpfc_sha_init - Set up initial array of hash table entries
2465  * @HashResultPointer: pointer to an array as hash table.
2466  *
2467  * This routine sets up the initial values to the array of hash table entries
2468  * for the LC HBAs.
2469  **/
2470 static void
2471 lpfc_sha_init(uint32_t * HashResultPointer)
2472 {
2473         HashResultPointer[0] = 0x67452301;
2474         HashResultPointer[1] = 0xEFCDAB89;
2475         HashResultPointer[2] = 0x98BADCFE;
2476         HashResultPointer[3] = 0x10325476;
2477         HashResultPointer[4] = 0xC3D2E1F0;
2478 }
2479
2480 /**
2481  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2482  * @HashResultPointer: pointer to an initial/result hash table.
2483  * @HashWorkingPointer: pointer to an working hash table.
2484  *
2485  * This routine iterates an initial hash table pointed by @HashResultPointer
2486  * with the values from the working hash table pointeed by @HashWorkingPointer.
2487  * The results are putting back to the initial hash table, returned through
2488  * the @HashResultPointer as the result hash table.
2489  **/
2490 static void
2491 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2492 {
2493         int t;
2494         uint32_t TEMP;
2495         uint32_t A, B, C, D, E;
2496         t = 16;
2497         do {
2498                 HashWorkingPointer[t] =
2499                     S(1,
2500                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2501                                                                      8] ^
2502                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2503         } while (++t <= 79);
2504         t = 0;
2505         A = HashResultPointer[0];
2506         B = HashResultPointer[1];
2507         C = HashResultPointer[2];
2508         D = HashResultPointer[3];
2509         E = HashResultPointer[4];
2510
2511         do {
2512                 if (t < 20) {
2513                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2514                 } else if (t < 40) {
2515                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2516                 } else if (t < 60) {
2517                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2518                 } else {
2519                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2520                 }
2521                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2522                 E = D;
2523                 D = C;
2524                 C = S(30, B);
2525                 B = A;
2526                 A = TEMP;
2527         } while (++t <= 79);
2528
2529         HashResultPointer[0] += A;
2530         HashResultPointer[1] += B;
2531         HashResultPointer[2] += C;
2532         HashResultPointer[3] += D;
2533         HashResultPointer[4] += E;
2534
2535 }
2536
2537 /**
2538  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2539  * @RandomChallenge: pointer to the entry of host challenge random number array.
2540  * @HashWorking: pointer to the entry of the working hash array.
2541  *
2542  * This routine calculates the working hash array referred by @HashWorking
2543  * from the challenge random numbers associated with the host, referred by
2544  * @RandomChallenge. The result is put into the entry of the working hash
2545  * array and returned by reference through @HashWorking.
2546  **/
2547 static void
2548 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2549 {
2550         *HashWorking = (*RandomChallenge ^ *HashWorking);
2551 }
2552
2553 /**
2554  * lpfc_hba_init - Perform special handling for LC HBA initialization
2555  * @phba: pointer to lpfc hba data structure.
2556  * @hbainit: pointer to an array of unsigned 32-bit integers.
2557  *
2558  * This routine performs the special handling for LC HBA initialization.
2559  **/
2560 void
2561 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2562 {
2563         int t;
2564         uint32_t *HashWorking;
2565         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2566
2567         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2568         if (!HashWorking)
2569                 return;
2570
2571         HashWorking[0] = HashWorking[78] = *pwwnn++;
2572         HashWorking[1] = HashWorking[79] = *pwwnn;
2573
2574         for (t = 0; t < 7; t++)
2575                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2576
2577         lpfc_sha_init(hbainit);
2578         lpfc_sha_iterate(hbainit, HashWorking);
2579         kfree(HashWorking);
2580 }
2581
2582 /**
2583  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2584  * @vport: pointer to a virtual N_Port data structure.
2585  *
2586  * This routine performs the necessary cleanups before deleting the @vport.
2587  * It invokes the discovery state machine to perform necessary state
2588  * transitions and to release the ndlps associated with the @vport. Note,
2589  * the physical port is treated as @vport 0.
2590  **/
2591 void
2592 lpfc_cleanup(struct lpfc_vport *vport)
2593 {
2594         struct lpfc_hba   *phba = vport->phba;
2595         struct lpfc_nodelist *ndlp, *next_ndlp;
2596         int i = 0;
2597
2598         if (phba->link_state > LPFC_LINK_DOWN)
2599                 lpfc_port_link_failure(vport);
2600
2601         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2602                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2603                         ndlp = lpfc_enable_node(vport, ndlp,
2604                                                 NLP_STE_UNUSED_NODE);
2605                         if (!ndlp)
2606                                 continue;
2607                         spin_lock_irq(&phba->ndlp_lock);
2608                         NLP_SET_FREE_REQ(ndlp);
2609                         spin_unlock_irq(&phba->ndlp_lock);
2610                         /* Trigger the release of the ndlp memory */
2611                         lpfc_nlp_put(ndlp);
2612                         continue;
2613                 }
2614                 spin_lock_irq(&phba->ndlp_lock);
2615                 if (NLP_CHK_FREE_REQ(ndlp)) {
2616                         /* The ndlp should not be in memory free mode already */
2617                         spin_unlock_irq(&phba->ndlp_lock);
2618                         continue;
2619                 } else
2620                         /* Indicate request for freeing ndlp memory */
2621                         NLP_SET_FREE_REQ(ndlp);
2622                 spin_unlock_irq(&phba->ndlp_lock);
2623
2624                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2625                     ndlp->nlp_DID == Fabric_DID) {
2626                         /* Just free up ndlp with Fabric_DID for vports */
2627                         lpfc_nlp_put(ndlp);
2628                         continue;
2629                 }
2630
2631                 /* take care of nodes in unused state before the state
2632                  * machine taking action.
2633                  */
2634                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2635                         lpfc_nlp_put(ndlp);
2636                         continue;
2637                 }
2638
2639                 if (ndlp->nlp_type & NLP_FABRIC)
2640                         lpfc_disc_state_machine(vport, ndlp, NULL,
2641                                         NLP_EVT_DEVICE_RECOVERY);
2642
2643                 lpfc_disc_state_machine(vport, ndlp, NULL,
2644                                              NLP_EVT_DEVICE_RM);
2645         }
2646
2647         /* At this point, ALL ndlp's should be gone
2648          * because of the previous NLP_EVT_DEVICE_RM.
2649          * Lets wait for this to happen, if needed.
2650          */
2651         while (!list_empty(&vport->fc_nodes)) {
2652                 if (i++ > 3000) {
2653                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2654                                 "0233 Nodelist not empty\n");
2655                         list_for_each_entry_safe(ndlp, next_ndlp,
2656                                                 &vport->fc_nodes, nlp_listp) {
2657                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2658                                                 LOG_NODE,
2659                                                 "0282 did:x%x ndlp:x%p "
2660                                                 "usgmap:x%x refcnt:%d\n",
2661                                                 ndlp->nlp_DID, (void *)ndlp,
2662                                                 ndlp->nlp_usg_map,
2663                                                 kref_read(&ndlp->kref));
2664                         }
2665                         break;
2666                 }
2667
2668                 /* Wait for any activity on ndlps to settle */
2669                 msleep(10);
2670         }
2671         lpfc_cleanup_vports_rrqs(vport, NULL);
2672 }
2673
2674 /**
2675  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2676  * @vport: pointer to a virtual N_Port data structure.
2677  *
2678  * This routine stops all the timers associated with a @vport. This function
2679  * is invoked before disabling or deleting a @vport. Note that the physical
2680  * port is treated as @vport 0.
2681  **/
2682 void
2683 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2684 {
2685         del_timer_sync(&vport->els_tmofunc);
2686         del_timer_sync(&vport->delayed_disc_tmo);
2687         lpfc_can_disctmo(vport);
2688         return;
2689 }
2690
2691 /**
2692  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2693  * @phba: pointer to lpfc hba data structure.
2694  *
2695  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2696  * caller of this routine should already hold the host lock.
2697  **/
2698 void
2699 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2700 {
2701         /* Clear pending FCF rediscovery wait flag */
2702         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2703
2704         /* Now, try to stop the timer */
2705         del_timer(&phba->fcf.redisc_wait);
2706 }
2707
2708 /**
2709  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2710  * @phba: pointer to lpfc hba data structure.
2711  *
2712  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2713  * checks whether the FCF rediscovery wait timer is pending with the host
2714  * lock held before proceeding with disabling the timer and clearing the
2715  * wait timer pendig flag.
2716  **/
2717 void
2718 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2719 {
2720         spin_lock_irq(&phba->hbalock);
2721         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2722                 /* FCF rediscovery timer already fired or stopped */
2723                 spin_unlock_irq(&phba->hbalock);
2724                 return;
2725         }
2726         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2727         /* Clear failover in progress flags */
2728         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2729         spin_unlock_irq(&phba->hbalock);
2730 }
2731
2732 /**
2733  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2734  * @phba: pointer to lpfc hba data structure.
2735  *
2736  * This routine stops all the timers associated with a HBA. This function is
2737  * invoked before either putting a HBA offline or unloading the driver.
2738  **/
2739 void
2740 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2741 {
2742         lpfc_stop_vport_timers(phba->pport);
2743         del_timer_sync(&phba->sli.mbox_tmo);
2744         del_timer_sync(&phba->fabric_block_timer);
2745         del_timer_sync(&phba->eratt_poll);
2746         del_timer_sync(&phba->hb_tmofunc);
2747         if (phba->sli_rev == LPFC_SLI_REV4) {
2748                 del_timer_sync(&phba->rrq_tmr);
2749                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2750         }
2751         phba->hb_outstanding = 0;
2752
2753         switch (phba->pci_dev_grp) {
2754         case LPFC_PCI_DEV_LP:
2755                 /* Stop any LightPulse device specific driver timers */
2756                 del_timer_sync(&phba->fcp_poll_timer);
2757                 break;
2758         case LPFC_PCI_DEV_OC:
2759                 /* Stop any OneConnect device sepcific driver timers */
2760                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2761                 break;
2762         default:
2763                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2764                                 "0297 Invalid device group (x%x)\n",
2765                                 phba->pci_dev_grp);
2766                 break;
2767         }
2768         return;
2769 }
2770
2771 /**
2772  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2773  * @phba: pointer to lpfc hba data structure.
2774  *
2775  * This routine marks a HBA's management interface as blocked. Once the HBA's
2776  * management interface is marked as blocked, all the user space access to
2777  * the HBA, whether they are from sysfs interface or libdfc interface will
2778  * all be blocked. The HBA is set to block the management interface when the
2779  * driver prepares the HBA interface for online or offline.
2780  **/
2781 static void
2782 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2783 {
2784         unsigned long iflag;
2785         uint8_t actcmd = MBX_HEARTBEAT;
2786         unsigned long timeout;
2787
2788         spin_lock_irqsave(&phba->hbalock, iflag);
2789         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2790         spin_unlock_irqrestore(&phba->hbalock, iflag);
2791         if (mbx_action == LPFC_MBX_NO_WAIT)
2792                 return;
2793         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2794         spin_lock_irqsave(&phba->hbalock, iflag);
2795         if (phba->sli.mbox_active) {
2796                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2797                 /* Determine how long we might wait for the active mailbox
2798                  * command to be gracefully completed by firmware.
2799                  */
2800                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2801                                 phba->sli.mbox_active) * 1000) + jiffies;
2802         }
2803         spin_unlock_irqrestore(&phba->hbalock, iflag);
2804
2805         /* Wait for the outstnading mailbox command to complete */
2806         while (phba->sli.mbox_active) {
2807                 /* Check active mailbox complete status every 2ms */
2808                 msleep(2);
2809                 if (time_after(jiffies, timeout)) {
2810                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2811                                 "2813 Mgmt IO is Blocked %x "
2812                                 "- mbox cmd %x still active\n",
2813                                 phba->sli.sli_flag, actcmd);
2814                         break;
2815                 }
2816         }
2817 }
2818
2819 /**
2820  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2821  * @phba: pointer to lpfc hba data structure.
2822  *
2823  * Allocate RPIs for all active remote nodes. This is needed whenever
2824  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2825  * is to fixup the temporary rpi assignments.
2826  **/
2827 void
2828 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2829 {
2830         struct lpfc_nodelist  *ndlp, *next_ndlp;
2831         struct lpfc_vport **vports;
2832         int i;
2833
2834         if (phba->sli_rev != LPFC_SLI_REV4)
2835                 return;
2836
2837         vports = lpfc_create_vport_work_array(phba);
2838         if (vports != NULL) {
2839                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2840                         if (vports[i]->load_flag & FC_UNLOADING)
2841                                 continue;
2842
2843                         list_for_each_entry_safe(ndlp, next_ndlp,
2844                                                  &vports[i]->fc_nodes,
2845                                                  nlp_listp) {
2846                                 if (NLP_CHK_NODE_ACT(ndlp)) {
2847                                         ndlp->nlp_rpi =
2848                                                 lpfc_sli4_alloc_rpi(phba);
2849                                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
2850                                                          LOG_NODE,
2851                                                          "0009 rpi:%x DID:%x "
2852                                                          "flg:%x map:%x %p\n",
2853                                                          ndlp->nlp_rpi,
2854                                                          ndlp->nlp_DID,
2855                                                          ndlp->nlp_flag,
2856                                                          ndlp->nlp_usg_map,
2857                                                          ndlp);
2858                                 }
2859                         }
2860                 }
2861         }
2862         lpfc_destroy_vport_work_array(phba, vports);
2863 }
2864
2865 /**
2866  * lpfc_online - Initialize and bring a HBA online
2867  * @phba: pointer to lpfc hba data structure.
2868  *
2869  * This routine initializes the HBA and brings a HBA online. During this
2870  * process, the management interface is blocked to prevent user space access
2871  * to the HBA interfering with the driver initialization.
2872  *
2873  * Return codes
2874  *   0 - successful
2875  *   1 - failed
2876  **/
2877 int
2878 lpfc_online(struct lpfc_hba *phba)
2879 {
2880         struct lpfc_vport *vport;
2881         struct lpfc_vport **vports;
2882         int i;
2883         bool vpis_cleared = false;
2884
2885         if (!phba)
2886                 return 0;
2887         vport = phba->pport;
2888
2889         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2890                 return 0;
2891
2892         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2893                         "0458 Bring Adapter online\n");
2894
2895         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2896
2897         if (!lpfc_sli_queue_setup(phba)) {
2898                 lpfc_unblock_mgmt_io(phba);
2899                 return 1;
2900         }
2901
2902         if (phba->sli_rev == LPFC_SLI_REV4) {
2903                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2904                         lpfc_unblock_mgmt_io(phba);
2905                         return 1;
2906                 }
2907                 spin_lock_irq(&phba->hbalock);
2908                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2909                         vpis_cleared = true;
2910                 spin_unlock_irq(&phba->hbalock);
2911         } else {
2912                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2913                         lpfc_unblock_mgmt_io(phba);
2914                         return 1;
2915                 }
2916         }
2917
2918         vports = lpfc_create_vport_work_array(phba);
2919         if (vports != NULL) {
2920                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2921                         struct Scsi_Host *shost;
2922                         shost = lpfc_shost_from_vport(vports[i]);
2923                         spin_lock_irq(shost->host_lock);
2924                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2925                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2926                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2927                         if (phba->sli_rev == LPFC_SLI_REV4) {
2928                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2929                                 if ((vpis_cleared) &&
2930                                     (vports[i]->port_type !=
2931                                         LPFC_PHYSICAL_PORT))
2932                                         vports[i]->vpi = 0;
2933                         }
2934                         spin_unlock_irq(shost->host_lock);
2935                 }
2936         }
2937         lpfc_destroy_vport_work_array(phba, vports);
2938
2939         lpfc_unblock_mgmt_io(phba);
2940         return 0;
2941 }
2942
2943 /**
2944  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2945  * @phba: pointer to lpfc hba data structure.
2946  *
2947  * This routine marks a HBA's management interface as not blocked. Once the
2948  * HBA's management interface is marked as not blocked, all the user space
2949  * access to the HBA, whether they are from sysfs interface or libdfc
2950  * interface will be allowed. The HBA is set to block the management interface
2951  * when the driver prepares the HBA interface for online or offline and then
2952  * set to unblock the management interface afterwards.
2953  **/
2954 void
2955 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2956 {
2957         unsigned long iflag;
2958
2959         spin_lock_irqsave(&phba->hbalock, iflag);
2960         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2961         spin_unlock_irqrestore(&phba->hbalock, iflag);
2962 }
2963
2964 /**
2965  * lpfc_offline_prep - Prepare a HBA to be brought offline
2966  * @phba: pointer to lpfc hba data structure.
2967  *
2968  * This routine is invoked to prepare a HBA to be brought offline. It performs
2969  * unregistration login to all the nodes on all vports and flushes the mailbox
2970  * queue to make it ready to be brought offline.
2971  **/
2972 void
2973 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2974 {
2975         struct lpfc_vport *vport = phba->pport;
2976         struct lpfc_nodelist  *ndlp, *next_ndlp;
2977         struct lpfc_vport **vports;
2978         struct Scsi_Host *shost;
2979         int i;
2980
2981         if (vport->fc_flag & FC_OFFLINE_MODE)
2982                 return;
2983
2984         lpfc_block_mgmt_io(phba, mbx_action);
2985
2986         lpfc_linkdown(phba);
2987
2988         /* Issue an unreg_login to all nodes on all vports */
2989         vports = lpfc_create_vport_work_array(phba);
2990         if (vports != NULL) {
2991                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2992                         if (vports[i]->load_flag & FC_UNLOADING)
2993                                 continue;
2994                         shost = lpfc_shost_from_vport(vports[i]);
2995                         spin_lock_irq(shost->host_lock);
2996                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2997                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2998                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2999                         spin_unlock_irq(shost->host_lock);
3000
3001                         shost = lpfc_shost_from_vport(vports[i]);
3002                         list_for_each_entry_safe(ndlp, next_ndlp,
3003                                                  &vports[i]->fc_nodes,
3004                                                  nlp_listp) {
3005                                 if (!NLP_CHK_NODE_ACT(ndlp))
3006                                         continue;
3007                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
3008                                         continue;
3009                                 if (ndlp->nlp_type & NLP_FABRIC) {
3010                                         lpfc_disc_state_machine(vports[i], ndlp,
3011                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3012                                         lpfc_disc_state_machine(vports[i], ndlp,
3013                                                 NULL, NLP_EVT_DEVICE_RM);
3014                                 }
3015                                 spin_lock_irq(shost->host_lock);
3016                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3017                                 spin_unlock_irq(shost->host_lock);
3018                                 /*
3019                                  * Whenever an SLI4 port goes offline, free the
3020                                  * RPI. Get a new RPI when the adapter port
3021                                  * comes back online.
3022                                  */
3023                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3024                                         lpfc_printf_vlog(ndlp->vport,
3025                                                          KERN_INFO, LOG_NODE,
3026                                                          "0011 lpfc_offline: "
3027                                                          "ndlp:x%p did %x "
3028                                                          "usgmap:x%x rpi:%x\n",
3029                                                          ndlp, ndlp->nlp_DID,
3030                                                          ndlp->nlp_usg_map,
3031                                                          ndlp->nlp_rpi);
3032
3033                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3034                                 }
3035                                 lpfc_unreg_rpi(vports[i], ndlp);
3036                         }
3037                 }
3038         }
3039         lpfc_destroy_vport_work_array(phba, vports);
3040
3041         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3042 }
3043
3044 /**
3045  * lpfc_offline - Bring a HBA offline
3046  * @phba: pointer to lpfc hba data structure.
3047  *
3048  * This routine actually brings a HBA offline. It stops all the timers
3049  * associated with the HBA, brings down the SLI layer, and eventually
3050  * marks the HBA as in offline state for the upper layer protocol.
3051  **/
3052 void
3053 lpfc_offline(struct lpfc_hba *phba)
3054 {
3055         struct Scsi_Host  *shost;
3056         struct lpfc_vport **vports;
3057         int i;
3058
3059         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3060                 return;
3061
3062         /* stop port and all timers associated with this hba */
3063         lpfc_stop_port(phba);
3064         vports = lpfc_create_vport_work_array(phba);
3065         if (vports != NULL)
3066                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3067                         lpfc_stop_vport_timers(vports[i]);
3068         lpfc_destroy_vport_work_array(phba, vports);
3069         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3070                         "0460 Bring Adapter offline\n");
3071         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3072            now.  */
3073         lpfc_sli_hba_down(phba);
3074         spin_lock_irq(&phba->hbalock);
3075         phba->work_ha = 0;
3076         spin_unlock_irq(&phba->hbalock);
3077         vports = lpfc_create_vport_work_array(phba);
3078         if (vports != NULL)
3079                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3080                         shost = lpfc_shost_from_vport(vports[i]);
3081                         spin_lock_irq(shost->host_lock);
3082                         vports[i]->work_port_events = 0;
3083                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3084                         spin_unlock_irq(shost->host_lock);
3085                 }
3086         lpfc_destroy_vport_work_array(phba, vports);
3087 }
3088
3089 /**
3090  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3091  * @phba: pointer to lpfc hba data structure.
3092  *
3093  * This routine is to free all the SCSI buffers and IOCBs from the driver
3094  * list back to kernel. It is called from lpfc_pci_remove_one to free
3095  * the internal resources before the device is removed from the system.
3096  **/
3097 static void
3098 lpfc_scsi_free(struct lpfc_hba *phba)
3099 {
3100         struct lpfc_scsi_buf *sb, *sb_next;
3101         struct lpfc_iocbq *io, *io_next;
3102
3103         spin_lock_irq(&phba->hbalock);
3104
3105         /* Release all the lpfc_scsi_bufs maintained by this host. */
3106
3107         spin_lock(&phba->scsi_buf_list_put_lock);
3108         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3109                                  list) {
3110                 list_del(&sb->list);
3111                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3112                               sb->dma_handle);
3113                 kfree(sb);
3114                 phba->total_scsi_bufs--;
3115         }
3116         spin_unlock(&phba->scsi_buf_list_put_lock);
3117
3118         spin_lock(&phba->scsi_buf_list_get_lock);
3119         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3120                                  list) {
3121                 list_del(&sb->list);
3122                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3123                               sb->dma_handle);
3124                 kfree(sb);
3125                 phba->total_scsi_bufs--;
3126         }
3127         spin_unlock(&phba->scsi_buf_list_get_lock);
3128
3129         /* Release all the lpfc_iocbq entries maintained by this host. */
3130         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3131                 list_del(&io->list);
3132                 kfree(io);
3133                 phba->total_iocbq_bufs--;
3134         }
3135
3136         spin_unlock_irq(&phba->hbalock);
3137 }
3138
3139 /**
3140  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3141  * @phba: pointer to lpfc hba data structure.
3142  *
3143  * This routine first calculates the sizes of the current els and allocated
3144  * scsi sgl lists, and then goes through all sgls to updates the physical
3145  * XRIs assigned due to port function reset. During port initialization, the
3146  * current els and allocated scsi sgl lists are 0s.
3147  *
3148  * Return codes
3149  *   0 - successful (for now, it always returns 0)
3150  **/
3151 int
3152 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3153 {
3154         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3155         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3156         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3157         LIST_HEAD(els_sgl_list);
3158         LIST_HEAD(scsi_sgl_list);
3159         int rc;
3160         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3161
3162         /*
3163          * update on pci function's els xri-sgl list
3164          */
3165         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3166         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3167                 /* els xri-sgl expanded */
3168                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3169                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3170                                 "3157 ELS xri-sgl count increased from "
3171                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3172                                 els_xri_cnt);
3173                 /* allocate the additional els sgls */
3174                 for (i = 0; i < xri_cnt; i++) {
3175                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3176                                              GFP_KERNEL);
3177                         if (sglq_entry == NULL) {
3178                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3179                                                 "2562 Failure to allocate an "
3180                                                 "ELS sgl entry:%d\n", i);
3181                                 rc = -ENOMEM;
3182                                 goto out_free_mem;
3183                         }
3184                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3185                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3186                                                            &sglq_entry->phys);
3187                         if (sglq_entry->virt == NULL) {
3188                                 kfree(sglq_entry);
3189                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3190                                                 "2563 Failure to allocate an "
3191                                                 "ELS mbuf:%d\n", i);
3192                                 rc = -ENOMEM;
3193                                 goto out_free_mem;
3194                         }
3195                         sglq_entry->sgl = sglq_entry->virt;
3196                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3197                         sglq_entry->state = SGL_FREED;
3198                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3199                 }
3200                 spin_lock_irq(&phba->hbalock);
3201                 spin_lock(&pring->ring_lock);
3202                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3203                 spin_unlock(&pring->ring_lock);
3204                 spin_unlock_irq(&phba->hbalock);
3205         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3206                 /* els xri-sgl shrinked */
3207                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3208                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3209                                 "3158 ELS xri-sgl count decreased from "
3210                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3211                                 els_xri_cnt);
3212                 spin_lock_irq(&phba->hbalock);
3213                 spin_lock(&pring->ring_lock);
3214                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3215                 spin_unlock(&pring->ring_lock);
3216                 spin_unlock_irq(&phba->hbalock);
3217                 /* release extra els sgls from list */
3218                 for (i = 0; i < xri_cnt; i++) {
3219                         list_remove_head(&els_sgl_list,
3220                                          sglq_entry, struct lpfc_sglq, list);
3221                         if (sglq_entry) {
3222                                 lpfc_mbuf_free(phba, sglq_entry->virt,
3223                                                sglq_entry->phys);
3224                                 kfree(sglq_entry);
3225                         }
3226                 }
3227                 spin_lock_irq(&phba->hbalock);
3228                 spin_lock(&pring->ring_lock);
3229                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3230                 spin_unlock(&pring->ring_lock);
3231                 spin_unlock_irq(&phba->hbalock);
3232         } else
3233                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3234                                 "3163 ELS xri-sgl count unchanged: %d\n",
3235                                 els_xri_cnt);
3236         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3237
3238         /* update xris to els sgls on the list */
3239         sglq_entry = NULL;
3240         sglq_entry_next = NULL;
3241         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3242                                  &phba->sli4_hba.lpfc_sgl_list, list) {
3243                 lxri = lpfc_sli4_next_xritag(phba);
3244                 if (lxri == NO_XRI) {
3245                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3246                                         "2400 Failed to allocate xri for "
3247                                         "ELS sgl\n");
3248                         rc = -ENOMEM;
3249                         goto out_free_mem;
3250                 }
3251                 sglq_entry->sli4_lxritag = lxri;
3252                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3253         }
3254
3255         /*
3256          * update on pci function's allocated scsi xri-sgl list
3257          */
3258         phba->total_scsi_bufs = 0;
3259
3260         /* maximum number of xris available for scsi buffers */
3261         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3262                                       els_xri_cnt;
3263
3264         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3265                         "2401 Current allocated SCSI xri-sgl count:%d, "
3266                         "maximum  SCSI xri count:%d\n",
3267                         phba->sli4_hba.scsi_xri_cnt,
3268                         phba->sli4_hba.scsi_xri_max);
3269
3270         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3271         spin_lock(&phba->scsi_buf_list_put_lock);
3272         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3273         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3274         spin_unlock(&phba->scsi_buf_list_put_lock);
3275         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3276
3277         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3278                 /* max scsi xri shrinked below the allocated scsi buffers */
3279                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3280                                         phba->sli4_hba.scsi_xri_max;
3281                 /* release the extra allocated scsi buffers */
3282                 for (i = 0; i < scsi_xri_cnt; i++) {
3283                         list_remove_head(&scsi_sgl_list, psb,
3284                                          struct lpfc_scsi_buf, list);
3285                         if (psb) {
3286                                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3287                                               psb->data, psb->dma_handle);
3288                                 kfree(psb);
3289                         }
3290                 }
3291                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3292                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3293                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3294         }
3295
3296         /* update xris associated to remaining allocated scsi buffers */
3297         psb = NULL;
3298         psb_next = NULL;
3299         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3300                 lxri = lpfc_sli4_next_xritag(phba);
3301                 if (lxri == NO_XRI) {
3302                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3303                                         "2560 Failed to allocate xri for "
3304                                         "scsi buffer\n");
3305                         rc = -ENOMEM;
3306                         goto out_free_mem;
3307                 }
3308                 psb->cur_iocbq.sli4_lxritag = lxri;
3309                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3310         }
3311         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3312         spin_lock(&phba->scsi_buf_list_put_lock);
3313         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3314         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3315         spin_unlock(&phba->scsi_buf_list_put_lock);
3316         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3317
3318         return 0;
3319
3320 out_free_mem:
3321         lpfc_free_els_sgl_list(phba);
3322         lpfc_scsi_free(phba);
3323         return rc;
3324 }
3325
3326 /**
3327  * lpfc_create_port - Create an FC port
3328  * @phba: pointer to lpfc hba data structure.
3329  * @instance: a unique integer ID to this FC port.
3330  * @dev: pointer to the device data structure.
3331  *
3332  * This routine creates a FC port for the upper layer protocol. The FC port
3333  * can be created on top of either a physical port or a virtual port provided
3334  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3335  * and associates the FC port created before adding the shost into the SCSI
3336  * layer.
3337  *
3338  * Return codes
3339  *   @vport - pointer to the virtual N_Port data structure.
3340  *   NULL - port create failed.
3341  **/
3342 struct lpfc_vport *
3343 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3344 {
3345         struct lpfc_vport *vport;
3346         struct Scsi_Host  *shost;
3347         int error = 0;
3348
3349         if (dev != &phba->pcidev->dev) {
3350                 shost = scsi_host_alloc(&lpfc_vport_template,
3351                                         sizeof(struct lpfc_vport));
3352         } else {
3353                 if (phba->sli_rev == LPFC_SLI_REV4)
3354                         shost = scsi_host_alloc(&lpfc_template,
3355                                         sizeof(struct lpfc_vport));
3356                 else
3357                         shost = scsi_host_alloc(&lpfc_template_s3,
3358                                         sizeof(struct lpfc_vport));
3359         }
3360         if (!shost)
3361                 goto out;
3362
3363         vport = (struct lpfc_vport *) shost->hostdata;
3364         vport->phba = phba;
3365         vport->load_flag |= FC_LOADING;
3366         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3367         vport->fc_rscn_flush = 0;
3368
3369         lpfc_get_vport_cfgparam(vport);
3370         shost->unique_id = instance;
3371         shost->max_id = LPFC_MAX_TARGET;
3372         shost->max_lun = vport->cfg_max_luns;
3373         shost->this_id = -1;
3374         shost->max_cmd_len = 16;
3375         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3376         if (phba->sli_rev == LPFC_SLI_REV4) {
3377                 shost->dma_boundary =
3378                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3379                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3380         }
3381
3382         /*
3383          * Set initial can_queue value since 0 is no longer supported and
3384          * scsi_add_host will fail. This will be adjusted later based on the
3385          * max xri value determined in hba setup.
3386          */
3387         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3388         if (dev != &phba->pcidev->dev) {
3389                 shost->transportt = lpfc_vport_transport_template;
3390                 vport->port_type = LPFC_NPIV_PORT;
3391         } else {
3392                 shost->transportt = lpfc_transport_template;
3393                 vport->port_type = LPFC_PHYSICAL_PORT;
3394         }
3395
3396         /* Initialize all internally managed lists. */
3397         INIT_LIST_HEAD(&vport->fc_nodes);
3398         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3399         spin_lock_init(&vport->work_port_lock);
3400
3401         init_timer(&vport->fc_disctmo);
3402         vport->fc_disctmo.function = lpfc_disc_timeout;
3403         vport->fc_disctmo.data = (unsigned long)vport;
3404
3405         init_timer(&vport->els_tmofunc);
3406         vport->els_tmofunc.function = lpfc_els_timeout;
3407         vport->els_tmofunc.data = (unsigned long)vport;
3408
3409         init_timer(&vport->delayed_disc_tmo);
3410         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3411         vport->delayed_disc_tmo.data = (unsigned long)vport;
3412
3413         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3414         if (error)
3415                 goto out_put_shost;
3416
3417         spin_lock_irq(&phba->hbalock);
3418         list_add_tail(&vport->listentry, &phba->port_list);
3419         spin_unlock_irq(&phba->hbalock);
3420         return vport;
3421
3422 out_put_shost:
3423         scsi_host_put(shost);
3424 out:
3425         return NULL;
3426 }
3427
3428 /**
3429  * destroy_port -  destroy an FC port
3430  * @vport: pointer to an lpfc virtual N_Port data structure.
3431  *
3432  * This routine destroys a FC port from the upper layer protocol. All the
3433  * resources associated with the port are released.
3434  **/
3435 void
3436 destroy_port(struct lpfc_vport *vport)
3437 {
3438         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3439         struct lpfc_hba  *phba = vport->phba;
3440
3441         lpfc_debugfs_terminate(vport);
3442         fc_remove_host(shost);
3443         scsi_remove_host(shost);
3444
3445         spin_lock_irq(&phba->hbalock);
3446         list_del_init(&vport->listentry);
3447         spin_unlock_irq(&phba->hbalock);
3448
3449         lpfc_cleanup(vport);
3450         return;
3451 }
3452
3453 /**
3454  * lpfc_get_instance - Get a unique integer ID
3455  *
3456  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3457  * uses the kernel idr facility to perform the task.
3458  *
3459  * Return codes:
3460  *   instance - a unique integer ID allocated as the new instance.
3461  *   -1 - lpfc get instance failed.
3462  **/
3463 int
3464 lpfc_get_instance(void)
3465 {
3466         int ret;
3467
3468         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3469         return ret < 0 ? -1 : ret;
3470 }
3471
3472 /**
3473  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3474  * @shost: pointer to SCSI host data structure.
3475  * @time: elapsed time of the scan in jiffies.
3476  *
3477  * This routine is called by the SCSI layer with a SCSI host to determine
3478  * whether the scan host is finished.
3479  *
3480  * Note: there is no scan_start function as adapter initialization will have
3481  * asynchronously kicked off the link initialization.
3482  *
3483  * Return codes
3484  *   0 - SCSI host scan is not over yet.
3485  *   1 - SCSI host scan is over.
3486  **/
3487 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3488 {
3489         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3490         struct lpfc_hba   *phba = vport->phba;
3491         int stat = 0;
3492
3493         spin_lock_irq(shost->host_lock);
3494
3495         if (vport->load_flag & FC_UNLOADING) {
3496                 stat = 1;
3497                 goto finished;
3498         }
3499         if (time >= msecs_to_jiffies(30 * 1000)) {
3500                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3501                                 "0461 Scanning longer than 30 "
3502                                 "seconds.  Continuing initialization\n");
3503                 stat = 1;
3504                 goto finished;
3505         }
3506         if (time >= msecs_to_jiffies(15 * 1000) &&
3507             phba->link_state <= LPFC_LINK_DOWN) {
3508                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3509                                 "0465 Link down longer than 15 "
3510                                 "seconds.  Continuing initialization\n");
3511                 stat = 1;
3512                 goto finished;
3513         }
3514
3515         if (vport->port_state != LPFC_VPORT_READY)
3516                 goto finished;
3517         if (vport->num_disc_nodes || vport->fc_prli_sent)
3518                 goto finished;
3519         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3520                 goto finished;
3521         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3522                 goto finished;
3523
3524         stat = 1;
3525
3526 finished:
3527         spin_unlock_irq(shost->host_lock);
3528         return stat;
3529 }
3530
3531 /**
3532  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3533  * @shost: pointer to SCSI host data structure.
3534  *
3535  * This routine initializes a given SCSI host attributes on a FC port. The
3536  * SCSI host can be either on top of a physical port or a virtual port.
3537  **/
3538 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3539 {
3540         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3541         struct lpfc_hba   *phba = vport->phba;
3542         /*
3543          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3544          */
3545
3546         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3547         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3548         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3549
3550         memset(fc_host_supported_fc4s(shost), 0,
3551                sizeof(fc_host_supported_fc4s(shost)));
3552         fc_host_supported_fc4s(shost)[2] = 1;
3553         fc_host_supported_fc4s(shost)[7] = 1;
3554
3555         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3556                                  sizeof fc_host_symbolic_name(shost));
3557
3558         fc_host_supported_speeds(shost) = 0;
3559         if (phba->lmt & LMT_32Gb)
3560                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
3561         if (phba->lmt & LMT_16Gb)
3562                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3563         if (phba->lmt & LMT_10Gb)
3564                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3565         if (phba->lmt & LMT_8Gb)
3566                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3567         if (phba->lmt & LMT_4Gb)
3568                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3569         if (phba->lmt & LMT_2Gb)
3570                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3571         if (phba->lmt & LMT_1Gb)
3572                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3573
3574         fc_host_maxframe_size(shost) =
3575                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3576                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3577
3578         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3579
3580         /* This value is also unchanging */
3581         memset(fc_host_active_fc4s(shost), 0,
3582                sizeof(fc_host_active_fc4s(shost)));
3583         fc_host_active_fc4s(shost)[2] = 1;
3584         fc_host_active_fc4s(shost)[7] = 1;
3585
3586         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3587         spin_lock_irq(shost->host_lock);
3588         vport->load_flag &= ~FC_LOADING;
3589         spin_unlock_irq(shost->host_lock);
3590 }
3591
3592 /**
3593  * lpfc_stop_port_s3 - Stop SLI3 device port
3594  * @phba: pointer to lpfc hba data structure.
3595  *
3596  * This routine is invoked to stop an SLI3 device port, it stops the device
3597  * from generating interrupts and stops the device driver's timers for the
3598  * device.
3599  **/
3600 static void
3601 lpfc_stop_port_s3(struct lpfc_hba *phba)
3602 {
3603         /* Clear all interrupt enable conditions */
3604         writel(0, phba->HCregaddr);
3605         readl(phba->HCregaddr); /* flush */
3606         /* Clear all pending interrupts */
3607         writel(0xffffffff, phba->HAregaddr);
3608         readl(phba->HAregaddr); /* flush */
3609
3610         /* Reset some HBA SLI setup states */
3611         lpfc_stop_hba_timers(phba);
3612         phba->pport->work_port_events = 0;
3613 }
3614
3615 /**
3616  * lpfc_stop_port_s4 - Stop SLI4 device port
3617  * @phba: pointer to lpfc hba data structure.
3618  *
3619  * This routine is invoked to stop an SLI4 device port, it stops the device
3620  * from generating interrupts and stops the device driver's timers for the
3621  * device.
3622  **/
3623 static void
3624 lpfc_stop_port_s4(struct lpfc_hba *phba)
3625 {
3626         /* Reset some HBA SLI4 setup states */
3627         lpfc_stop_hba_timers(phba);
3628         phba->pport->work_port_events = 0;
3629         phba->sli4_hba.intr_enable = 0;
3630 }
3631
3632 /**
3633  * lpfc_stop_port - Wrapper function for stopping hba port
3634  * @phba: Pointer to HBA context object.
3635  *
3636  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3637  * the API jump table function pointer from the lpfc_hba struct.
3638  **/
3639 void
3640 lpfc_stop_port(struct lpfc_hba *phba)
3641 {
3642         phba->lpfc_stop_port(phba);
3643 }
3644
3645 /**
3646  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3647  * @phba: Pointer to hba for which this call is being executed.
3648  *
3649  * This routine starts the timer waiting for the FCF rediscovery to complete.
3650  **/
3651 void
3652 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3653 {
3654         unsigned long fcf_redisc_wait_tmo =
3655                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3656         /* Start fcf rediscovery wait period timer */
3657         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3658         spin_lock_irq(&phba->hbalock);
3659         /* Allow action to new fcf asynchronous event */
3660         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3661         /* Mark the FCF rediscovery pending state */
3662         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3663         spin_unlock_irq(&phba->hbalock);
3664 }
3665
3666 /**
3667  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3668  * @ptr: Map to lpfc_hba data structure pointer.
3669  *
3670  * This routine is invoked when waiting for FCF table rediscover has been
3671  * timed out. If new FCF record(s) has (have) been discovered during the
3672  * wait period, a new FCF event shall be added to the FCOE async event
3673  * list, and then worker thread shall be waked up for processing from the
3674  * worker thread context.
3675  **/
3676 static void
3677 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3678 {
3679         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3680
3681         /* Don't send FCF rediscovery event if timer cancelled */
3682         spin_lock_irq(&phba->hbalock);
3683         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3684                 spin_unlock_irq(&phba->hbalock);
3685                 return;
3686         }
3687         /* Clear FCF rediscovery timer pending flag */
3688         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3689         /* FCF rediscovery event to worker thread */
3690         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3691         spin_unlock_irq(&phba->hbalock);
3692         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3693                         "2776 FCF rediscover quiescent timer expired\n");
3694         /* wake up worker thread */
3695         lpfc_worker_wake_up(phba);
3696 }
3697
3698 /**
3699  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3700  * @phba: pointer to lpfc hba data structure.
3701  * @acqe_link: pointer to the async link completion queue entry.
3702  *
3703  * This routine is to parse the SLI4 link-attention link fault code and
3704  * translate it into the base driver's read link attention mailbox command
3705  * status.
3706  *
3707  * Return: Link-attention status in terms of base driver's coding.
3708  **/
3709 static uint16_t
3710 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3711                            struct lpfc_acqe_link *acqe_link)
3712 {
3713         uint16_t latt_fault;
3714
3715         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3716         case LPFC_ASYNC_LINK_FAULT_NONE:
3717         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3718         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3719                 latt_fault = 0;
3720                 break;
3721         default:
3722                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3723                                 "0398 Invalid link fault code: x%x\n",
3724                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3725                 latt_fault = MBXERR_ERROR;
3726                 break;
3727         }
3728         return latt_fault;
3729 }
3730
3731 /**
3732  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3733  * @phba: pointer to lpfc hba data structure.
3734  * @acqe_link: pointer to the async link completion queue entry.
3735  *
3736  * This routine is to parse the SLI4 link attention type and translate it
3737  * into the base driver's link attention type coding.
3738  *
3739  * Return: Link attention type in terms of base driver's coding.
3740  **/
3741 static uint8_t
3742 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3743                           struct lpfc_acqe_link *acqe_link)
3744 {
3745         uint8_t att_type;
3746
3747         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3748         case LPFC_ASYNC_LINK_STATUS_DOWN:
3749         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3750                 att_type = LPFC_ATT_LINK_DOWN;
3751                 break;
3752         case LPFC_ASYNC_LINK_STATUS_UP:
3753                 /* Ignore physical link up events - wait for logical link up */
3754                 att_type = LPFC_ATT_RESERVED;
3755                 break;
3756         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3757                 att_type = LPFC_ATT_LINK_UP;
3758                 break;
3759         default:
3760                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3761                                 "0399 Invalid link attention type: x%x\n",
3762                                 bf_get(lpfc_acqe_link_status, acqe_link));
3763                 att_type = LPFC_ATT_RESERVED;
3764                 break;
3765         }
3766         return att_type;
3767 }
3768
3769 /**
3770  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3771  * @phba: pointer to lpfc hba data structure.
3772  *
3773  * This routine is to get an SLI3 FC port's link speed in Mbps.
3774  *
3775  * Return: link speed in terms of Mbps.
3776  **/
3777 uint32_t
3778 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3779 {
3780         uint32_t link_speed;
3781
3782         if (!lpfc_is_link_up(phba))
3783                 return 0;
3784
3785         if (phba->sli_rev <= LPFC_SLI_REV3) {
3786                 switch (phba->fc_linkspeed) {
3787                 case LPFC_LINK_SPEED_1GHZ:
3788                         link_speed = 1000;
3789                         break;
3790                 case LPFC_LINK_SPEED_2GHZ:
3791                         link_speed = 2000;
3792                         break;
3793                 case LPFC_LINK_SPEED_4GHZ:
3794                         link_speed = 4000;
3795                         break;
3796                 case LPFC_LINK_SPEED_8GHZ:
3797                         link_speed = 8000;
3798                         break;
3799                 case LPFC_LINK_SPEED_10GHZ:
3800                         link_speed = 10000;
3801                         break;
3802                 case LPFC_LINK_SPEED_16GHZ:
3803                         link_speed = 16000;
3804                         break;
3805                 default:
3806                         link_speed = 0;
3807                 }
3808         } else {
3809                 if (phba->sli4_hba.link_state.logical_speed)
3810                         link_speed =
3811                               phba->sli4_hba.link_state.logical_speed;
3812                 else
3813                         link_speed = phba->sli4_hba.link_state.speed;
3814         }
3815         return link_speed;
3816 }
3817
3818 /**
3819  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3820  * @phba: pointer to lpfc hba data structure.
3821  * @evt_code: asynchronous event code.
3822  * @speed_code: asynchronous event link speed code.
3823  *
3824  * This routine is to parse the giving SLI4 async event link speed code into
3825  * value of Mbps for the link speed.
3826  *
3827  * Return: link speed in terms of Mbps.
3828  **/
3829 static uint32_t
3830 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3831                            uint8_t speed_code)
3832 {
3833         uint32_t port_speed;
3834
3835         switch (evt_code) {
3836         case LPFC_TRAILER_CODE_LINK:
3837                 switch (speed_code) {
3838                 case LPFC_ASYNC_LINK_SPEED_ZERO:
3839                         port_speed = 0;
3840                         break;
3841                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3842                         port_speed = 10;
3843                         break;
3844                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3845                         port_speed = 100;
3846                         break;
3847                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3848                         port_speed = 1000;
3849                         break;
3850                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3851                         port_speed = 10000;
3852                         break;
3853                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3854                         port_speed = 20000;
3855                         break;
3856                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3857                         port_speed = 25000;
3858                         break;
3859                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3860                         port_speed = 40000;
3861                         break;
3862                 default:
3863                         port_speed = 0;
3864                 }
3865                 break;
3866         case LPFC_TRAILER_CODE_FC:
3867                 switch (speed_code) {
3868                 case LPFC_FC_LA_SPEED_UNKNOWN:
3869                         port_speed = 0;
3870                         break;
3871                 case LPFC_FC_LA_SPEED_1G:
3872                         port_speed = 1000;
3873                         break;
3874                 case LPFC_FC_LA_SPEED_2G:
3875                         port_speed = 2000;
3876                         break;
3877                 case LPFC_FC_LA_SPEED_4G:
3878                         port_speed = 4000;
3879                         break;
3880                 case LPFC_FC_LA_SPEED_8G:
3881                         port_speed = 8000;
3882                         break;
3883                 case LPFC_FC_LA_SPEED_10G:
3884                         port_speed = 10000;
3885                         break;
3886                 case LPFC_FC_LA_SPEED_16G:
3887                         port_speed = 16000;
3888                         break;
3889                 case LPFC_FC_LA_SPEED_32G:
3890                         port_speed = 32000;
3891                         break;
3892                 default:
3893                         port_speed = 0;
3894                 }
3895                 break;
3896         default:
3897                 port_speed = 0;
3898         }
3899         return port_speed;
3900 }
3901
3902 /**
3903  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3904  * @phba: pointer to lpfc hba data structure.
3905  * @acqe_link: pointer to the async link completion queue entry.
3906  *
3907  * This routine is to handle the SLI4 asynchronous FCoE link event.
3908  **/
3909 static void
3910 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3911                          struct lpfc_acqe_link *acqe_link)
3912 {
3913         struct lpfc_dmabuf *mp;
3914         LPFC_MBOXQ_t *pmb;
3915         MAILBOX_t *mb;
3916         struct lpfc_mbx_read_top *la;
3917         uint8_t att_type;
3918         int rc;
3919
3920         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3921         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3922                 return;
3923         phba->fcoe_eventtag = acqe_link->event_tag;
3924         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3925         if (!pmb) {
3926                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3927                                 "0395 The mboxq allocation failed\n");
3928                 return;
3929         }
3930         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3931         if (!mp) {
3932                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3933                                 "0396 The lpfc_dmabuf allocation failed\n");
3934                 goto out_free_pmb;
3935         }
3936         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3937         if (!mp->virt) {
3938                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3939                                 "0397 The mbuf allocation failed\n");
3940                 goto out_free_dmabuf;
3941         }
3942
3943         /* Cleanup any outstanding ELS commands */
3944         lpfc_els_flush_all_cmd(phba);
3945
3946         /* Block ELS IOCBs until we have done process link event */
3947         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3948
3949         /* Update link event statistics */
3950         phba->sli.slistat.link_event++;
3951
3952         /* Create lpfc_handle_latt mailbox command from link ACQE */
3953         lpfc_read_topology(phba, pmb, mp);
3954         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3955         pmb->vport = phba->pport;
3956
3957         /* Keep the link status for extra SLI4 state machine reference */
3958         phba->sli4_hba.link_state.speed =
3959                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3960                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3961         phba->sli4_hba.link_state.duplex =
3962                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3963         phba->sli4_hba.link_state.status =
3964                                 bf_get(lpfc_acqe_link_status, acqe_link);
3965         phba->sli4_hba.link_state.type =
3966                                 bf_get(lpfc_acqe_link_type, acqe_link);
3967         phba->sli4_hba.link_state.number =
3968                                 bf_get(lpfc_acqe_link_number, acqe_link);
3969         phba->sli4_hba.link_state.fault =
3970                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3971         phba->sli4_hba.link_state.logical_speed =
3972                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3973
3974         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3975                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3976                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3977                         "Logical speed:%dMbps Fault:%d\n",
3978                         phba->sli4_hba.link_state.speed,
3979                         phba->sli4_hba.link_state.topology,
3980                         phba->sli4_hba.link_state.status,
3981                         phba->sli4_hba.link_state.type,
3982                         phba->sli4_hba.link_state.number,
3983                         phba->sli4_hba.link_state.logical_speed,
3984                         phba->sli4_hba.link_state.fault);
3985         /*
3986          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3987          * topology info. Note: Optional for non FC-AL ports.
3988          */
3989         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3990                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3991                 if (rc == MBX_NOT_FINISHED)
3992                         goto out_free_dmabuf;
3993                 return;
3994         }
3995         /*
3996          * For FCoE Mode: fill in all the topology information we need and call
3997          * the READ_TOPOLOGY completion routine to continue without actually
3998          * sending the READ_TOPOLOGY mailbox command to the port.
3999          */
4000         /* Parse and translate status field */
4001         mb = &pmb->u.mb;
4002         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
4003
4004         /* Parse and translate link attention fields */
4005         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
4006         la->eventTag = acqe_link->event_tag;
4007         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
4008         bf_set(lpfc_mbx_read_top_link_spd, la,
4009                (bf_get(lpfc_acqe_link_speed, acqe_link)));
4010
4011         /* Fake the the following irrelvant fields */
4012         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
4013         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
4014         bf_set(lpfc_mbx_read_top_il, la, 0);
4015         bf_set(lpfc_mbx_read_top_pb, la, 0);
4016         bf_set(lpfc_mbx_read_top_fa, la, 0);
4017         bf_set(lpfc_mbx_read_top_mm, la, 0);
4018
4019         /* Invoke the lpfc_handle_latt mailbox command callback function */
4020         lpfc_mbx_cmpl_read_topology(phba, pmb);
4021
4022         return;
4023
4024 out_free_dmabuf:
4025         kfree(mp);
4026 out_free_pmb:
4027         mempool_free(pmb, phba->mbox_mem_pool);
4028 }
4029
4030 /**
4031  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4032  * @phba: pointer to lpfc hba data structure.
4033  * @acqe_fc: pointer to the async fc completion queue entry.
4034  *
4035  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4036  * that the event was received and then issue a read_topology mailbox command so
4037  * that the rest of the driver will treat it the same as SLI3.
4038  **/
4039 static void
4040 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4041 {
4042         struct lpfc_dmabuf *mp;
4043         LPFC_MBOXQ_t *pmb;
4044         MAILBOX_t *mb;
4045         struct lpfc_mbx_read_top *la;
4046         int rc;
4047
4048         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4049             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4050                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4051                                 "2895 Non FC link Event detected.(%d)\n",
4052                                 bf_get(lpfc_trailer_type, acqe_fc));
4053                 return;
4054         }
4055         /* Keep the link status for extra SLI4 state machine reference */
4056         phba->sli4_hba.link_state.speed =
4057                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4058                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4059         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4060         phba->sli4_hba.link_state.topology =
4061                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4062         phba->sli4_hba.link_state.status =
4063                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4064         phba->sli4_hba.link_state.type =
4065                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4066         phba->sli4_hba.link_state.number =
4067                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4068         phba->sli4_hba.link_state.fault =
4069                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4070         phba->sli4_hba.link_state.logical_speed =
4071                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4072         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4073                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4074                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4075                         "%dMbps Fault:%d\n",
4076                         phba->sli4_hba.link_state.speed,
4077                         phba->sli4_hba.link_state.topology,
4078                         phba->sli4_hba.link_state.status,
4079                         phba->sli4_hba.link_state.type,
4080                         phba->sli4_hba.link_state.number,
4081                         phba->sli4_hba.link_state.logical_speed,
4082                         phba->sli4_hba.link_state.fault);
4083         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4084         if (!pmb) {
4085                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4086                                 "2897 The mboxq allocation failed\n");
4087                 return;
4088         }
4089         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4090         if (!mp) {
4091                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4092                                 "2898 The lpfc_dmabuf allocation failed\n");
4093                 goto out_free_pmb;
4094         }
4095         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4096         if (!mp->virt) {
4097                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4098                                 "2899 The mbuf allocation failed\n");
4099                 goto out_free_dmabuf;
4100         }
4101
4102         /* Cleanup any outstanding ELS commands */
4103         lpfc_els_flush_all_cmd(phba);
4104
4105         /* Block ELS IOCBs until we have done process link event */
4106         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4107
4108         /* Update link event statistics */
4109         phba->sli.slistat.link_event++;
4110
4111         /* Create lpfc_handle_latt mailbox command from link ACQE */
4112         lpfc_read_topology(phba, pmb, mp);
4113         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4114         pmb->vport = phba->pport;
4115
4116         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
4117                 /* Parse and translate status field */
4118                 mb = &pmb->u.mb;
4119                 mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba,
4120                                                            (void *)acqe_fc);
4121
4122                 /* Parse and translate link attention fields */
4123                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
4124                 la->eventTag = acqe_fc->event_tag;
4125                 bf_set(lpfc_mbx_read_top_att_type, la,
4126                        LPFC_FC_LA_TYPE_LINK_DOWN);
4127
4128                 /* Invoke the mailbox command callback function */
4129                 lpfc_mbx_cmpl_read_topology(phba, pmb);
4130
4131                 return;
4132         }
4133
4134         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4135         if (rc == MBX_NOT_FINISHED)
4136                 goto out_free_dmabuf;
4137         return;
4138
4139 out_free_dmabuf:
4140         kfree(mp);
4141 out_free_pmb:
4142         mempool_free(pmb, phba->mbox_mem_pool);
4143 }
4144
4145 /**
4146  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4147  * @phba: pointer to lpfc hba data structure.
4148  * @acqe_fc: pointer to the async SLI completion queue entry.
4149  *
4150  * This routine is to handle the SLI4 asynchronous SLI events.
4151  **/
4152 static void
4153 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4154 {
4155         char port_name;
4156         char message[128];
4157         uint8_t status;
4158         uint8_t evt_type;
4159         uint8_t operational = 0;
4160         struct temp_event temp_event_data;
4161         struct lpfc_acqe_misconfigured_event *misconfigured;
4162         struct Scsi_Host  *shost;
4163
4164         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4165
4166         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4167                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4168                         "x%08x SLI Event Type:%d\n",
4169                         acqe_sli->event_data1, acqe_sli->event_data2,
4170                         evt_type);
4171
4172         port_name = phba->Port[0];
4173         if (port_name == 0x00)
4174                 port_name = '?'; /* get port name is empty */
4175
4176         switch (evt_type) {
4177         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4178                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4179                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4180                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4181
4182                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4183                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4184                                 acqe_sli->event_data1, port_name);
4185
4186                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
4187                 shost = lpfc_shost_from_vport(phba->pport);
4188                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4189                                           sizeof(temp_event_data),
4190                                           (char *)&temp_event_data,
4191                                           SCSI_NL_VID_TYPE_PCI
4192                                           | PCI_VENDOR_ID_EMULEX);
4193                 break;
4194         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4195                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4196                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4197                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4198
4199                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4200                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4201                                 acqe_sli->event_data1, port_name);
4202
4203                 shost = lpfc_shost_from_vport(phba->pport);
4204                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4205                                           sizeof(temp_event_data),
4206                                           (char *)&temp_event_data,
4207                                           SCSI_NL_VID_TYPE_PCI
4208                                           | PCI_VENDOR_ID_EMULEX);
4209                 break;
4210         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4211                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4212                                         &acqe_sli->event_data1;
4213
4214                 /* fetch the status for this port */
4215                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4216                 case LPFC_LINK_NUMBER_0:
4217                         status = bf_get(lpfc_sli_misconfigured_port0_state,
4218                                         &misconfigured->theEvent);
4219                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
4220                                         &misconfigured->theEvent);
4221                         break;
4222                 case LPFC_LINK_NUMBER_1:
4223                         status = bf_get(lpfc_sli_misconfigured_port1_state,
4224                                         &misconfigured->theEvent);
4225                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
4226                                         &misconfigured->theEvent);
4227                         break;
4228                 case LPFC_LINK_NUMBER_2:
4229                         status = bf_get(lpfc_sli_misconfigured_port2_state,
4230                                         &misconfigured->theEvent);
4231                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
4232                                         &misconfigured->theEvent);
4233                         break;
4234                 case LPFC_LINK_NUMBER_3:
4235                         status = bf_get(lpfc_sli_misconfigured_port3_state,
4236                                         &misconfigured->theEvent);
4237                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
4238                                         &misconfigured->theEvent);
4239                         break;
4240                 default:
4241                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4242                                         "3296 "
4243                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
4244                                         "event: Invalid link %d",
4245                                         phba->sli4_hba.lnk_info.lnk_no);
4246                         return;
4247                 }
4248
4249                 /* Skip if optic state unchanged */
4250                 if (phba->sli4_hba.lnk_info.optic_state == status)
4251                         return;
4252
4253                 switch (status) {
4254                 case LPFC_SLI_EVENT_STATUS_VALID:
4255                         sprintf(message, "Physical Link is functional");
4256                         break;
4257                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4258                         sprintf(message, "Optics faulted/incorrectly "
4259                                 "installed/not installed - Reseat optics, "
4260                                 "if issue not resolved, replace.");
4261                         break;
4262                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4263                         sprintf(message,
4264                                 "Optics of two types installed - Remove one "
4265                                 "optic or install matching pair of optics.");
4266                         break;
4267                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4268                         sprintf(message, "Incompatible optics - Replace with "
4269                                 "compatible optics for card to function.");
4270                         break;
4271                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
4272                         sprintf(message, "Unqualified optics - Replace with "
4273                                 "Avago optics for Warranty and Technical "
4274                                 "Support - Link is%s operational",
4275                                 (operational) ? "" : " not");
4276                         break;
4277                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
4278                         sprintf(message, "Uncertified optics - Replace with "
4279                                 "Avago-certified optics to enable link "
4280                                 "operation - Link is%s operational",
4281                                 (operational) ? "" : " not");
4282                         break;
4283                 default:
4284                         /* firmware is reporting a status we don't know about */
4285                         sprintf(message, "Unknown event status x%02x", status);
4286                         break;
4287                 }
4288                 phba->sli4_hba.lnk_info.optic_state = status;
4289                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4290                                 "3176 Port Name %c %s\n", port_name, message);
4291                 break;
4292         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4293                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4294                                 "3192 Remote DPort Test Initiated - "
4295                                 "Event Data1:x%08x Event Data2: x%08x\n",
4296                                 acqe_sli->event_data1, acqe_sli->event_data2);
4297                 break;
4298         default:
4299                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4300                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4301                                 "x%08x SLI Event Type:%d\n",
4302                                 acqe_sli->event_data1, acqe_sli->event_data2,
4303                                 evt_type);
4304                 break;
4305         }
4306 }
4307
4308 /**
4309  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4310  * @vport: pointer to vport data structure.
4311  *
4312  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4313  * response to a CVL event.
4314  *
4315  * Return the pointer to the ndlp with the vport if successful, otherwise
4316  * return NULL.
4317  **/
4318 static struct lpfc_nodelist *
4319 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4320 {
4321         struct lpfc_nodelist *ndlp;
4322         struct Scsi_Host *shost;
4323         struct lpfc_hba *phba;
4324
4325         if (!vport)
4326                 return NULL;
4327         phba = vport->phba;
4328         if (!phba)
4329                 return NULL;
4330         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4331         if (!ndlp) {
4332                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4333                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4334                 if (!ndlp)
4335                         return 0;
4336                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4337                 /* Set the node type */
4338                 ndlp->nlp_type |= NLP_FABRIC;
4339                 /* Put ndlp onto node list */
4340                 lpfc_enqueue_node(vport, ndlp);
4341         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4342                 /* re-setup ndlp without removing from node list */
4343                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4344                 if (!ndlp)
4345                         return 0;
4346         }
4347         if ((phba->pport->port_state < LPFC_FLOGI) &&
4348                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4349                 return NULL;
4350         /* If virtual link is not yet instantiated ignore CVL */
4351         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4352                 && (vport->port_state != LPFC_VPORT_FAILED))
4353                 return NULL;
4354         shost = lpfc_shost_from_vport(vport);
4355         if (!shost)
4356                 return NULL;
4357         lpfc_linkdown_port(vport);
4358         lpfc_cleanup_pending_mbox(vport);
4359         spin_lock_irq(shost->host_lock);
4360         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4361         spin_unlock_irq(shost->host_lock);
4362
4363         return ndlp;
4364 }
4365
4366 /**
4367  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4368  * @vport: pointer to lpfc hba data structure.
4369  *
4370  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4371  * response to a FCF dead event.
4372  **/
4373 static void
4374 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4375 {
4376         struct lpfc_vport **vports;
4377         int i;
4378
4379         vports = lpfc_create_vport_work_array(phba);
4380         if (vports)
4381                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4382                         lpfc_sli4_perform_vport_cvl(vports[i]);
4383         lpfc_destroy_vport_work_array(phba, vports);
4384 }
4385
4386 /**
4387  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4388  * @phba: pointer to lpfc hba data structure.
4389  * @acqe_link: pointer to the async fcoe completion queue entry.
4390  *
4391  * This routine is to handle the SLI4 asynchronous fcoe event.
4392  **/
4393 static void
4394 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4395                         struct lpfc_acqe_fip *acqe_fip)
4396 {
4397         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4398         int rc;
4399         struct lpfc_vport *vport;
4400         struct lpfc_nodelist *ndlp;
4401         struct Scsi_Host  *shost;
4402         int active_vlink_present;
4403         struct lpfc_vport **vports;
4404         int i;
4405
4406         phba->fc_eventTag = acqe_fip->event_tag;
4407         phba->fcoe_eventtag = acqe_fip->event_tag;
4408         switch (event_type) {
4409         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4410         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4411                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4412                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4413                                         LOG_DISCOVERY,
4414                                         "2546 New FCF event, evt_tag:x%x, "
4415                                         "index:x%x\n",
4416                                         acqe_fip->event_tag,
4417                                         acqe_fip->index);
4418                 else
4419                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4420                                         LOG_DISCOVERY,
4421                                         "2788 FCF param modified event, "
4422                                         "evt_tag:x%x, index:x%x\n",
4423                                         acqe_fip->event_tag,
4424                                         acqe_fip->index);
4425                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4426                         /*
4427                          * During period of FCF discovery, read the FCF
4428                          * table record indexed by the event to update
4429                          * FCF roundrobin failover eligible FCF bmask.
4430                          */
4431                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4432                                         LOG_DISCOVERY,
4433                                         "2779 Read FCF (x%x) for updating "
4434                                         "roundrobin FCF failover bmask\n",
4435                                         acqe_fip->index);
4436                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4437                 }
4438
4439                 /* If the FCF discovery is in progress, do nothing. */
4440                 spin_lock_irq(&phba->hbalock);
4441                 if (phba->hba_flag & FCF_TS_INPROG) {
4442                         spin_unlock_irq(&phba->hbalock);
4443                         break;
4444                 }
4445                 /* If fast FCF failover rescan event is pending, do nothing */
4446                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4447                         spin_unlock_irq(&phba->hbalock);
4448                         break;
4449                 }
4450
4451                 /* If the FCF has been in discovered state, do nothing. */
4452                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4453                         spin_unlock_irq(&phba->hbalock);
4454                         break;
4455                 }
4456                 spin_unlock_irq(&phba->hbalock);
4457
4458                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4459                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4460                                 "2770 Start FCF table scan per async FCF "
4461                                 "event, evt_tag:x%x, index:x%x\n",
4462                                 acqe_fip->event_tag, acqe_fip->index);
4463                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4464                                                      LPFC_FCOE_FCF_GET_FIRST);
4465                 if (rc)
4466                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4467                                         "2547 Issue FCF scan read FCF mailbox "
4468                                         "command failed (x%x)\n", rc);
4469                 break;
4470
4471         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4472                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4473                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4474                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4475                         acqe_fip->event_tag);
4476                 break;
4477
4478         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4479                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4480                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4481                         "2549 FCF (x%x) disconnected from network, "
4482                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4483                 /*
4484                  * If we are in the middle of FCF failover process, clear
4485                  * the corresponding FCF bit in the roundrobin bitmap.
4486                  */
4487                 spin_lock_irq(&phba->hbalock);
4488                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
4489                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
4490                         spin_unlock_irq(&phba->hbalock);
4491                         /* Update FLOGI FCF failover eligible FCF bmask */
4492                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4493                         break;
4494                 }
4495                 spin_unlock_irq(&phba->hbalock);
4496
4497                 /* If the event is not for currently used fcf do nothing */
4498                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4499                         break;
4500
4501                 /*
4502                  * Otherwise, request the port to rediscover the entire FCF
4503                  * table for a fast recovery from case that the current FCF
4504                  * is no longer valid as we are not in the middle of FCF
4505                  * failover process already.
4506                  */
4507                 spin_lock_irq(&phba->hbalock);
4508                 /* Mark the fast failover process in progress */
4509                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4510                 spin_unlock_irq(&phba->hbalock);
4511
4512                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4513                                 "2771 Start FCF fast failover process due to "
4514                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4515                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4516                 rc = lpfc_sli4_redisc_fcf_table(phba);
4517                 if (rc) {
4518                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4519                                         LOG_DISCOVERY,
4520                                         "2772 Issue FCF rediscover mabilbox "
4521                                         "command failed, fail through to FCF "
4522                                         "dead event\n");
4523                         spin_lock_irq(&phba->hbalock);
4524                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4525                         spin_unlock_irq(&phba->hbalock);
4526                         /*
4527                          * Last resort will fail over by treating this
4528                          * as a link down to FCF registration.
4529                          */
4530                         lpfc_sli4_fcf_dead_failthrough(phba);
4531                 } else {
4532                         /* Reset FCF roundrobin bmask for new discovery */
4533                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4534                         /*
4535                          * Handling fast FCF failover to a DEAD FCF event is
4536                          * considered equalivant to receiving CVL to all vports.
4537                          */
4538                         lpfc_sli4_perform_all_vport_cvl(phba);
4539                 }
4540                 break;
4541         case LPFC_FIP_EVENT_TYPE_CVL:
4542                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4543                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4544                         "2718 Clear Virtual Link Received for VPI 0x%x"
4545                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4546
4547                 vport = lpfc_find_vport_by_vpid(phba,
4548                                                 acqe_fip->index);
4549                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4550                 if (!ndlp)
4551                         break;
4552                 active_vlink_present = 0;
4553
4554                 vports = lpfc_create_vport_work_array(phba);
4555                 if (vports) {
4556                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4557                                         i++) {
4558                                 if ((!(vports[i]->fc_flag &
4559                                         FC_VPORT_CVL_RCVD)) &&
4560                                         (vports[i]->port_state > LPFC_FDISC)) {
4561                                         active_vlink_present = 1;
4562                                         break;
4563                                 }
4564                         }
4565                         lpfc_destroy_vport_work_array(phba, vports);
4566                 }
4567
4568                 /*
4569                  * Don't re-instantiate if vport is marked for deletion.
4570                  * If we are here first then vport_delete is going to wait
4571                  * for discovery to complete.
4572                  */
4573                 if (!(vport->load_flag & FC_UNLOADING) &&
4574                                         active_vlink_present) {
4575                         /*
4576                          * If there are other active VLinks present,
4577                          * re-instantiate the Vlink using FDISC.
4578                          */
4579                         mod_timer(&ndlp->nlp_delayfunc,
4580                                   jiffies + msecs_to_jiffies(1000));
4581                         shost = lpfc_shost_from_vport(vport);
4582                         spin_lock_irq(shost->host_lock);
4583                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4584                         spin_unlock_irq(shost->host_lock);
4585                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4586                         vport->port_state = LPFC_FDISC;
4587                 } else {
4588                         /*
4589                          * Otherwise, we request port to rediscover
4590                          * the entire FCF table for a fast recovery
4591                          * from possible case that the current FCF
4592                          * is no longer valid if we are not already
4593                          * in the FCF failover process.
4594                          */
4595                         spin_lock_irq(&phba->hbalock);
4596                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4597                                 spin_unlock_irq(&phba->hbalock);
4598                                 break;
4599                         }
4600                         /* Mark the fast failover process in progress */
4601                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4602                         spin_unlock_irq(&phba->hbalock);
4603                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4604                                         LOG_DISCOVERY,
4605                                         "2773 Start FCF failover per CVL, "
4606                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4607                         rc = lpfc_sli4_redisc_fcf_table(phba);
4608                         if (rc) {
4609                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4610                                                 LOG_DISCOVERY,
4611                                                 "2774 Issue FCF rediscover "
4612                                                 "mabilbox command failed, "
4613                                                 "through to CVL event\n");
4614                                 spin_lock_irq(&phba->hbalock);
4615                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4616                                 spin_unlock_irq(&phba->hbalock);
4617                                 /*
4618                                  * Last resort will be re-try on the
4619                                  * the current registered FCF entry.
4620                                  */
4621                                 lpfc_retry_pport_discovery(phba);
4622                         } else
4623                                 /*
4624                                  * Reset FCF roundrobin bmask for new
4625                                  * discovery.
4626                                  */
4627                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4628                 }
4629                 break;
4630         default:
4631                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4632                         "0288 Unknown FCoE event type 0x%x event tag "
4633                         "0x%x\n", event_type, acqe_fip->event_tag);
4634                 break;
4635         }
4636 }
4637
4638 /**
4639  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4640  * @phba: pointer to lpfc hba data structure.
4641  * @acqe_link: pointer to the async dcbx completion queue entry.
4642  *
4643  * This routine is to handle the SLI4 asynchronous dcbx event.
4644  **/
4645 static void
4646 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4647                          struct lpfc_acqe_dcbx *acqe_dcbx)
4648 {
4649         phba->fc_eventTag = acqe_dcbx->event_tag;
4650         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4651                         "0290 The SLI4 DCBX asynchronous event is not "
4652                         "handled yet\n");
4653 }
4654
4655 /**
4656  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4657  * @phba: pointer to lpfc hba data structure.
4658  * @acqe_link: pointer to the async grp5 completion queue entry.
4659  *
4660  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4661  * is an asynchronous notified of a logical link speed change.  The Port
4662  * reports the logical link speed in units of 10Mbps.
4663  **/
4664 static void
4665 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4666                          struct lpfc_acqe_grp5 *acqe_grp5)
4667 {
4668         uint16_t prev_ll_spd;
4669
4670         phba->fc_eventTag = acqe_grp5->event_tag;
4671         phba->fcoe_eventtag = acqe_grp5->event_tag;
4672         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4673         phba->sli4_hba.link_state.logical_speed =
4674                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4675         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4676                         "2789 GRP5 Async Event: Updating logical link speed "
4677                         "from %dMbps to %dMbps\n", prev_ll_spd,
4678                         phba->sli4_hba.link_state.logical_speed);
4679 }
4680
4681 /**
4682  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4683  * @phba: pointer to lpfc hba data structure.
4684  *
4685  * This routine is invoked by the worker thread to process all the pending
4686  * SLI4 asynchronous events.
4687  **/
4688 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4689 {
4690         struct lpfc_cq_event *cq_event;
4691
4692         /* First, declare the async event has been handled */
4693         spin_lock_irq(&phba->hbalock);
4694         phba->hba_flag &= ~ASYNC_EVENT;
4695         spin_unlock_irq(&phba->hbalock);
4696         /* Now, handle all the async events */
4697         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4698                 /* Get the first event from the head of the event queue */
4699                 spin_lock_irq(&phba->hbalock);
4700                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4701                                  cq_event, struct lpfc_cq_event, list);
4702                 spin_unlock_irq(&phba->hbalock);
4703                 /* Process the asynchronous event */
4704                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4705                 case LPFC_TRAILER_CODE_LINK:
4706                         lpfc_sli4_async_link_evt(phba,
4707                                                  &cq_event->cqe.acqe_link);
4708                         break;
4709                 case LPFC_TRAILER_CODE_FCOE:
4710                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4711                         break;
4712                 case LPFC_TRAILER_CODE_DCBX:
4713                         lpfc_sli4_async_dcbx_evt(phba,
4714                                                  &cq_event->cqe.acqe_dcbx);
4715                         break;
4716                 case LPFC_TRAILER_CODE_GRP5:
4717                         lpfc_sli4_async_grp5_evt(phba,
4718                                                  &cq_event->cqe.acqe_grp5);
4719                         break;
4720                 case LPFC_TRAILER_CODE_FC:
4721                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4722                         break;
4723                 case LPFC_TRAILER_CODE_SLI:
4724                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4725                         break;
4726                 default:
4727                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4728                                         "1804 Invalid asynchrous event code: "
4729                                         "x%x\n", bf_get(lpfc_trailer_code,
4730                                         &cq_event->cqe.mcqe_cmpl));
4731                         break;
4732                 }
4733                 /* Free the completion event processed to the free pool */
4734                 lpfc_sli4_cq_event_release(phba, cq_event);
4735         }
4736 }
4737
4738 /**
4739  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4740  * @phba: pointer to lpfc hba data structure.
4741  *
4742  * This routine is invoked by the worker thread to process FCF table
4743  * rediscovery pending completion event.
4744  **/
4745 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4746 {
4747         int rc;
4748
4749         spin_lock_irq(&phba->hbalock);
4750         /* Clear FCF rediscovery timeout event */
4751         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4752         /* Clear driver fast failover FCF record flag */
4753         phba->fcf.failover_rec.flag = 0;
4754         /* Set state for FCF fast failover */
4755         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4756         spin_unlock_irq(&phba->hbalock);
4757
4758         /* Scan FCF table from the first entry to re-discover SAN */
4759         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4760                         "2777 Start post-quiescent FCF table scan\n");
4761         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4762         if (rc)
4763                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4764                                 "2747 Issue FCF scan read FCF mailbox "
4765                                 "command failed 0x%x\n", rc);
4766 }
4767
4768 /**
4769  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4770  * @phba: pointer to lpfc hba data structure.
4771  * @dev_grp: The HBA PCI-Device group number.
4772  *
4773  * This routine is invoked to set up the per HBA PCI-Device group function
4774  * API jump table entries.
4775  *
4776  * Return: 0 if success, otherwise -ENODEV
4777  **/
4778 int
4779 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4780 {
4781         int rc;
4782
4783         /* Set up lpfc PCI-device group */
4784         phba->pci_dev_grp = dev_grp;
4785
4786         /* The LPFC_PCI_DEV_OC uses SLI4 */
4787         if (dev_grp == LPFC_PCI_DEV_OC)
4788                 phba->sli_rev = LPFC_SLI_REV4;
4789
4790         /* Set up device INIT API function jump table */
4791         rc = lpfc_init_api_table_setup(phba, dev_grp);
4792         if (rc)
4793                 return -ENODEV;
4794         /* Set up SCSI API function jump table */
4795         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4796         if (rc)
4797                 return -ENODEV;
4798         /* Set up SLI API function jump table */
4799         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4800         if (rc)
4801                 return -ENODEV;
4802         /* Set up MBOX API function jump table */
4803         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4804         if (rc)
4805                 return -ENODEV;
4806
4807         return 0;
4808 }
4809
4810 /**
4811  * lpfc_log_intr_mode - Log the active interrupt mode
4812  * @phba: pointer to lpfc hba data structure.
4813  * @intr_mode: active interrupt mode adopted.
4814  *
4815  * This routine it invoked to log the currently used active interrupt mode
4816  * to the device.
4817  **/
4818 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4819 {
4820         switch (intr_mode) {
4821         case 0:
4822                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4823                                 "0470 Enable INTx interrupt mode.\n");
4824                 break;
4825         case 1:
4826                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4827                                 "0481 Enabled MSI interrupt mode.\n");
4828                 break;
4829         case 2:
4830                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4831                                 "0480 Enabled MSI-X interrupt mode.\n");
4832                 break;
4833         default:
4834                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4835                                 "0482 Illegal interrupt mode.\n");
4836                 break;
4837         }
4838         return;
4839 }
4840
4841 /**
4842  * lpfc_enable_pci_dev - Enable a generic PCI device.
4843  * @phba: pointer to lpfc hba data structure.
4844  *
4845  * This routine is invoked to enable the PCI device that is common to all
4846  * PCI devices.
4847  *
4848  * Return codes
4849  *      0 - successful
4850  *      other values - error
4851  **/
4852 static int
4853 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4854 {
4855         struct pci_dev *pdev;
4856
4857         /* Obtain PCI device reference */
4858         if (!phba->pcidev)
4859                 goto out_error;
4860         else
4861                 pdev = phba->pcidev;
4862         /* Enable PCI device */
4863         if (pci_enable_device_mem(pdev))
4864                 goto out_error;
4865         /* Request PCI resource for the device */
4866         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
4867                 goto out_disable_device;
4868         /* Set up device as PCI master and save state for EEH */
4869         pci_set_master(pdev);
4870         pci_try_set_mwi(pdev);
4871         pci_save_state(pdev);
4872
4873         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4874         if (pci_is_pcie(pdev))
4875                 pdev->needs_freset = 1;
4876
4877         return 0;
4878
4879 out_disable_device:
4880         pci_disable_device(pdev);
4881 out_error:
4882         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4883                         "1401 Failed to enable pci device\n");
4884         return -ENODEV;
4885 }
4886
4887 /**
4888  * lpfc_disable_pci_dev - Disable a generic PCI device.
4889  * @phba: pointer to lpfc hba data structure.
4890  *
4891  * This routine is invoked to disable the PCI device that is common to all
4892  * PCI devices.
4893  **/
4894 static void
4895 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4896 {
4897         struct pci_dev *pdev;
4898
4899         /* Obtain PCI device reference */
4900         if (!phba->pcidev)
4901                 return;
4902         else
4903                 pdev = phba->pcidev;
4904         /* Release PCI resource and disable PCI device */
4905         pci_release_mem_regions(pdev);
4906         pci_disable_device(pdev);
4907
4908         return;
4909 }
4910
4911 /**
4912  * lpfc_reset_hba - Reset a hba
4913  * @phba: pointer to lpfc hba data structure.
4914  *
4915  * This routine is invoked to reset a hba device. It brings the HBA
4916  * offline, performs a board restart, and then brings the board back
4917  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4918  * on outstanding mailbox commands.
4919  **/
4920 void
4921 lpfc_reset_hba(struct lpfc_hba *phba)
4922 {
4923         /* If resets are disabled then set error state and return. */
4924         if (!phba->cfg_enable_hba_reset) {
4925                 phba->link_state = LPFC_HBA_ERROR;
4926                 return;
4927         }
4928         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4929                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4930         else
4931                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4932         lpfc_offline(phba);
4933         lpfc_sli_brdrestart(phba);
4934         lpfc_online(phba);
4935         lpfc_unblock_mgmt_io(phba);
4936 }
4937
4938 /**
4939  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4940  * @phba: pointer to lpfc hba data structure.
4941  *
4942  * This function enables the PCI SR-IOV virtual functions to a physical
4943  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4944  * enable the number of virtual functions to the physical function. As
4945  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4946  * API call does not considered as an error condition for most of the device.
4947  **/
4948 uint16_t
4949 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4950 {
4951         struct pci_dev *pdev = phba->pcidev;
4952         uint16_t nr_virtfn;
4953         int pos;
4954
4955         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4956         if (pos == 0)
4957                 return 0;
4958
4959         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4960         return nr_virtfn;
4961 }
4962
4963 /**
4964  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4965  * @phba: pointer to lpfc hba data structure.
4966  * @nr_vfn: number of virtual functions to be enabled.
4967  *
4968  * This function enables the PCI SR-IOV virtual functions to a physical
4969  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4970  * enable the number of virtual functions to the physical function. As
4971  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4972  * API call does not considered as an error condition for most of the device.
4973  **/
4974 int
4975 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4976 {
4977         struct pci_dev *pdev = phba->pcidev;
4978         uint16_t max_nr_vfn;
4979         int rc;
4980
4981         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4982         if (nr_vfn > max_nr_vfn) {
4983                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4984                                 "3057 Requested vfs (%d) greater than "
4985                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4986                 return -EINVAL;
4987         }
4988
4989         rc = pci_enable_sriov(pdev, nr_vfn);
4990         if (rc) {
4991                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4992                                 "2806 Failed to enable sriov on this device "
4993                                 "with vfn number nr_vf:%d, rc:%d\n",
4994                                 nr_vfn, rc);
4995         } else
4996                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4997                                 "2807 Successful enable sriov on this device "
4998                                 "with vfn number nr_vf:%d\n", nr_vfn);
4999         return rc;
5000 }
5001
5002 /**
5003  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
5004  * @phba: pointer to lpfc hba data structure.
5005  *
5006  * This routine is invoked to set up the driver internal resources specific to
5007  * support the SLI-3 HBA device it attached to.
5008  *
5009  * Return codes
5010  *      0 - successful
5011  *      other values - error
5012  **/
5013 static int
5014 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
5015 {
5016         struct lpfc_sli *psli;
5017         int rc;
5018
5019         /*
5020          * Initialize timers used by driver
5021          */
5022
5023         /* Heartbeat timer */
5024         init_timer(&phba->hb_tmofunc);
5025         phba->hb_tmofunc.function = lpfc_hb_timeout;
5026         phba->hb_tmofunc.data = (unsigned long)phba;
5027
5028         psli = &phba->sli;
5029         /* MBOX heartbeat timer */
5030         init_timer(&psli->mbox_tmo);
5031         psli->mbox_tmo.function = lpfc_mbox_timeout;
5032         psli->mbox_tmo.data = (unsigned long) phba;
5033         /* FCP polling mode timer */
5034         init_timer(&phba->fcp_poll_timer);
5035         phba->fcp_poll_timer.function = lpfc_poll_timeout;
5036         phba->fcp_poll_timer.data = (unsigned long) phba;
5037         /* Fabric block timer */
5038         init_timer(&phba->fabric_block_timer);
5039         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5040         phba->fabric_block_timer.data = (unsigned long) phba;
5041         /* EA polling mode timer */
5042         init_timer(&phba->eratt_poll);
5043         phba->eratt_poll.function = lpfc_poll_eratt;
5044         phba->eratt_poll.data = (unsigned long) phba;
5045
5046         /* Host attention work mask setup */
5047         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
5048         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
5049
5050         /* Get all the module params for configuring this host */
5051         lpfc_get_cfgparam(phba);
5052         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
5053                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
5054                 /* check for menlo minimum sg count */
5055                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
5056                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
5057         }
5058
5059         if (!phba->sli.ring)
5060                 phba->sli.ring = kzalloc(LPFC_SLI3_MAX_RING *
5061                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5062         if (!phba->sli.ring)
5063                 return -ENOMEM;
5064
5065         /*
5066          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5067          * used to create the sg_dma_buf_pool must be dynamically calculated.
5068          */
5069
5070         /* Initialize the host templates the configured values. */
5071         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5072         lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt;
5073
5074         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5075         if (phba->cfg_enable_bg) {
5076                 /*
5077                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5078                  * the FCP rsp, and a BDE for each. Sice we have no control
5079                  * over how many protection data segments the SCSI Layer
5080                  * will hand us (ie: there could be one for every block
5081                  * in the IO), we just allocate enough BDEs to accomidate
5082                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5083                  * minimize the risk of running out.
5084                  */
5085                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5086                         sizeof(struct fcp_rsp) +
5087                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5088
5089                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5090                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5091
5092                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5093                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5094         } else {
5095                 /*
5096                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5097                  * the FCP rsp, a BDE for each, and a BDE for up to
5098                  * cfg_sg_seg_cnt data segments.
5099                  */
5100                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5101                         sizeof(struct fcp_rsp) +
5102                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5103
5104                 /* Total BDEs in BPL for scsi_sg_list */
5105                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5106         }
5107
5108         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5109                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5110                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5111                         phba->cfg_total_seg_cnt);
5112
5113         phba->max_vpi = LPFC_MAX_VPI;
5114         /* This will be set to correct value after config_port mbox */
5115         phba->max_vports = 0;
5116
5117         /*
5118          * Initialize the SLI Layer to run with lpfc HBAs.
5119          */
5120         lpfc_sli_setup(phba);
5121         lpfc_sli_queue_setup(phba);
5122
5123         /* Allocate device driver memory */
5124         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5125                 return -ENOMEM;
5126
5127         /*
5128          * Enable sr-iov virtual functions if supported and configured
5129          * through the module parameter.
5130          */
5131         if (phba->cfg_sriov_nr_virtfn > 0) {
5132                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5133                                                  phba->cfg_sriov_nr_virtfn);
5134                 if (rc) {
5135                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5136                                         "2808 Requested number of SR-IOV "
5137                                         "virtual functions (%d) is not "
5138                                         "supported\n",
5139                                         phba->cfg_sriov_nr_virtfn);
5140                         phba->cfg_sriov_nr_virtfn = 0;
5141                 }
5142         }
5143
5144         return 0;
5145 }
5146
5147 /**
5148  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5149  * @phba: pointer to lpfc hba data structure.
5150  *
5151  * This routine is invoked to unset the driver internal resources set up
5152  * specific for supporting the SLI-3 HBA device it attached to.
5153  **/
5154 static void
5155 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5156 {
5157         /* Free device driver memory allocated */
5158         lpfc_mem_free_all(phba);
5159
5160         return;
5161 }
5162
5163 /**
5164  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5165  * @phba: pointer to lpfc hba data structure.
5166  *
5167  * This routine is invoked to set up the driver internal resources specific to
5168  * support the SLI-4 HBA device it attached to.
5169  *
5170  * Return codes
5171  *      0 - successful
5172  *      other values - error
5173  **/
5174 static int
5175 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5176 {
5177         struct lpfc_vector_map_info *cpup;
5178         struct lpfc_sli *psli;
5179         LPFC_MBOXQ_t *mboxq;
5180         int rc, i, hbq_count, max_buf_size;
5181         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5182         struct lpfc_mqe *mqe;
5183         int longs;
5184         int fof_vectors = 0;
5185
5186         /* Get all the module params for configuring this host */
5187         lpfc_get_cfgparam(phba);
5188
5189         /* Before proceed, wait for POST done and device ready */
5190         rc = lpfc_sli4_post_status_check(phba);
5191         if (rc)
5192                 return -ENODEV;
5193
5194         /*
5195          * Initialize timers used by driver
5196          */
5197
5198         /* Heartbeat timer */
5199         init_timer(&phba->hb_tmofunc);
5200         phba->hb_tmofunc.function = lpfc_hb_timeout;
5201         phba->hb_tmofunc.data = (unsigned long)phba;
5202         init_timer(&phba->rrq_tmr);
5203         phba->rrq_tmr.function = lpfc_rrq_timeout;
5204         phba->rrq_tmr.data = (unsigned long)phba;
5205
5206         psli = &phba->sli;
5207         /* MBOX heartbeat timer */
5208         init_timer(&psli->mbox_tmo);
5209         psli->mbox_tmo.function = lpfc_mbox_timeout;
5210         psli->mbox_tmo.data = (unsigned long) phba;
5211         /* Fabric block timer */
5212         init_timer(&phba->fabric_block_timer);
5213         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5214         phba->fabric_block_timer.data = (unsigned long) phba;
5215         /* EA polling mode timer */
5216         init_timer(&phba->eratt_poll);
5217         phba->eratt_poll.function = lpfc_poll_eratt;
5218         phba->eratt_poll.data = (unsigned long) phba;
5219         /* FCF rediscover timer */
5220         init_timer(&phba->fcf.redisc_wait);
5221         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5222         phba->fcf.redisc_wait.data = (unsigned long)phba;
5223
5224         /*
5225          * Control structure for handling external multi-buffer mailbox
5226          * command pass-through.
5227          */
5228         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5229                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5230         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5231
5232         phba->max_vpi = LPFC_MAX_VPI;
5233
5234         /* This will be set to correct value after the read_config mbox */
5235         phba->max_vports = 0;
5236
5237         /* Program the default value of vlan_id and fc_map */
5238         phba->valid_vlan = 0;
5239         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5240         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5241         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5242
5243         /*
5244          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5245          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5246          */
5247         if (!phba->sli.ring)
5248                 phba->sli.ring = kzalloc(
5249                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5250                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5251         if (!phba->sli.ring)
5252                 return -ENOMEM;
5253
5254         /*
5255          * It doesn't matter what family our adapter is in, we are
5256          * limited to 2 Pages, 512 SGEs, for our SGL.
5257          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5258          */
5259         max_buf_size = (2 * SLI4_PAGE_SIZE);
5260         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5261                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5262
5263         /*
5264          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5265          * used to create the sg_dma_buf_pool must be dynamically calculated.
5266          */
5267
5268         if (phba->cfg_enable_bg) {
5269                 /*
5270                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5271                  * the FCP rsp, and a SGE for each. Sice we have no control
5272                  * over how many protection data segments the SCSI Layer
5273                  * will hand us (ie: there could be one for every block
5274                  * in the IO), we just allocate enough SGEs to accomidate
5275                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5276                  * minimize the risk of running out.
5277                  */
5278                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5279                         sizeof(struct fcp_rsp) + max_buf_size;
5280
5281                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5282                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5283
5284                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5285                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5286         } else {
5287                 /*
5288                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5289                  * the FCP rsp, a SGE for each, and a SGE for up to
5290                  * cfg_sg_seg_cnt data segments.
5291                  */
5292                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5293                         sizeof(struct fcp_rsp) +
5294                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5295
5296                 /* Total SGEs for scsi_sg_list */
5297                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5298                 /*
5299                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5300                  * to post 1 page for the SGL.
5301                  */
5302         }
5303
5304         /* Initialize the host templates with the updated values. */
5305         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5306         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5307
5308         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5309                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5310         else
5311                 phba->cfg_sg_dma_buf_size =
5312                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5313
5314         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5315                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5316                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5317                         phba->cfg_total_seg_cnt);
5318
5319         /* Initialize buffer queue management fields */
5320         hbq_count = lpfc_sli_hbq_count();
5321         for (i = 0; i < hbq_count; ++i)
5322                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5323         INIT_LIST_HEAD(&phba->rb_pend_list);
5324         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5325         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5326
5327         /*
5328          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5329          */
5330         /* Initialize the Abort scsi buffer list used by driver */
5331         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5332         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5333         /* This abort list used by worker thread */
5334         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5335
5336         /*
5337          * Initialize driver internal slow-path work queues
5338          */
5339
5340         /* Driver internel slow-path CQ Event pool */
5341         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5342         /* Response IOCB work queue list */
5343         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5344         /* Asynchronous event CQ Event work queue list */
5345         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5346         /* Fast-path XRI aborted CQ Event work queue list */
5347         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5348         /* Slow-path XRI aborted CQ Event work queue list */
5349         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5350         /* Receive queue CQ Event work queue list */
5351         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5352
5353         /* Initialize extent block lists. */
5354         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5355         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5356         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5357         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5358
5359         /* initialize optic_state to 0xFF */
5360         phba->sli4_hba.lnk_info.optic_state = 0xff;
5361
5362         /* Initialize the driver internal SLI layer lists. */
5363         lpfc_sli_setup(phba);
5364         lpfc_sli_queue_setup(phba);
5365
5366         /* Allocate device driver memory */
5367         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5368         if (rc)
5369                 return -ENOMEM;
5370
5371         /* IF Type 2 ports get initialized now. */
5372         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5373             LPFC_SLI_INTF_IF_TYPE_2) {
5374                 rc = lpfc_pci_function_reset(phba);
5375                 if (unlikely(rc))
5376                         return -ENODEV;
5377                 phba->temp_sensor_support = 1;
5378         }
5379
5380         /* Create the bootstrap mailbox command */
5381         rc = lpfc_create_bootstrap_mbox(phba);
5382         if (unlikely(rc))
5383                 goto out_free_mem;
5384
5385         /* Set up the host's endian order with the device. */
5386         rc = lpfc_setup_endian_order(phba);
5387         if (unlikely(rc))
5388                 goto out_free_bsmbx;
5389
5390         /* Set up the hba's configuration parameters. */
5391         rc = lpfc_sli4_read_config(phba);
5392         if (unlikely(rc))
5393                 goto out_free_bsmbx;
5394         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5395         if (unlikely(rc))
5396                 goto out_free_bsmbx;
5397
5398         /* IF Type 0 ports get initialized now. */
5399         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5400             LPFC_SLI_INTF_IF_TYPE_0) {
5401                 rc = lpfc_pci_function_reset(phba);
5402                 if (unlikely(rc))
5403                         goto out_free_bsmbx;
5404         }
5405
5406         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5407                                                        GFP_KERNEL);
5408         if (!mboxq) {
5409                 rc = -ENOMEM;
5410                 goto out_free_bsmbx;
5411         }
5412
5413         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5414         lpfc_supported_pages(mboxq);
5415         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5416         if (!rc) {
5417                 mqe = &mboxq->u.mqe;
5418                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5419                        LPFC_MAX_SUPPORTED_PAGES);
5420                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5421                         switch (pn_page[i]) {
5422                         case LPFC_SLI4_PARAMETERS:
5423                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5424                                 break;
5425                         default:
5426                                 break;
5427                         }
5428                 }
5429                 /* Read the port's SLI4 Parameters capabilities if supported. */
5430                 if (phba->sli4_hba.pc_sli4_params.supported)
5431                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5432                 if (rc) {
5433                         mempool_free(mboxq, phba->mbox_mem_pool);
5434                         rc = -EIO;
5435                         goto out_free_bsmbx;
5436                 }
5437         }
5438
5439         /*
5440          * Get sli4 parameters that override parameters from Port capabilities.
5441          * If this call fails, it isn't critical unless the SLI4 parameters come
5442          * back in conflict.
5443          */
5444         rc = lpfc_get_sli4_parameters(phba, mboxq);
5445         if (rc) {
5446                 if (phba->sli4_hba.extents_in_use &&
5447                     phba->sli4_hba.rpi_hdrs_in_use) {
5448                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5449                                 "2999 Unsupported SLI4 Parameters "
5450                                 "Extents and RPI headers enabled.\n");
5451                         goto out_free_bsmbx;
5452                 }
5453         }
5454         mempool_free(mboxq, phba->mbox_mem_pool);
5455
5456         /* Verify OAS is supported */
5457         lpfc_sli4_oas_verify(phba);
5458         if (phba->cfg_fof)
5459                 fof_vectors = 1;
5460
5461         /* Verify all the SLI4 queues */
5462         rc = lpfc_sli4_queue_verify(phba);
5463         if (rc)
5464                 goto out_free_bsmbx;
5465
5466         /* Create driver internal CQE event pool */
5467         rc = lpfc_sli4_cq_event_pool_create(phba);
5468         if (rc)
5469                 goto out_free_bsmbx;
5470
5471         /* Initialize sgl lists per host */
5472         lpfc_init_sgl_list(phba);
5473
5474         /* Allocate and initialize active sgl array */
5475         rc = lpfc_init_active_sgl_array(phba);
5476         if (rc) {
5477                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5478                                 "1430 Failed to initialize sgl list.\n");
5479                 goto out_destroy_cq_event_pool;
5480         }
5481         rc = lpfc_sli4_init_rpi_hdrs(phba);
5482         if (rc) {
5483                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5484                                 "1432 Failed to initialize rpi headers.\n");
5485                 goto out_free_active_sgl;
5486         }
5487
5488         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5489         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5490         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5491                                          GFP_KERNEL);
5492         if (!phba->fcf.fcf_rr_bmask) {
5493                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5494                                 "2759 Failed allocate memory for FCF round "
5495                                 "robin failover bmask\n");
5496                 rc = -ENOMEM;
5497                 goto out_remove_rpi_hdrs;
5498         }
5499
5500         phba->sli4_hba.fcp_eq_hdl =
5501                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5502                             (fof_vectors + phba->cfg_fcp_io_channel)),
5503                             GFP_KERNEL);
5504         if (!phba->sli4_hba.fcp_eq_hdl) {
5505                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5506                                 "2572 Failed allocate memory for "
5507                                 "fast-path per-EQ handle array\n");
5508                 rc = -ENOMEM;
5509                 goto out_free_fcf_rr_bmask;
5510         }
5511
5512         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5513                                   (fof_vectors +
5514                                    phba->cfg_fcp_io_channel)), GFP_KERNEL);
5515         if (!phba->sli4_hba.msix_entries) {
5516                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5517                                 "2573 Failed allocate memory for msi-x "
5518                                 "interrupt vector entries\n");
5519                 rc = -ENOMEM;
5520                 goto out_free_fcp_eq_hdl;
5521         }
5522
5523         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5524                                          phba->sli4_hba.num_present_cpu),
5525                                          GFP_KERNEL);
5526         if (!phba->sli4_hba.cpu_map) {
5527                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5528                                 "3327 Failed allocate memory for msi-x "
5529                                 "interrupt vector mapping\n");
5530                 rc = -ENOMEM;
5531                 goto out_free_msix;
5532         }
5533         if (lpfc_used_cpu == NULL) {
5534                 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5535                                          GFP_KERNEL);
5536                 if (!lpfc_used_cpu) {
5537                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5538                                         "3335 Failed allocate memory for msi-x "
5539                                         "interrupt vector mapping\n");
5540                         kfree(phba->sli4_hba.cpu_map);
5541                         rc = -ENOMEM;
5542                         goto out_free_msix;
5543                 }
5544                 for (i = 0; i < lpfc_present_cpu; i++)
5545                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5546         }
5547
5548         /* Initialize io channels for round robin */
5549         cpup = phba->sli4_hba.cpu_map;
5550         rc = 0;
5551         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5552                 cpup->channel_id = rc;
5553                 rc++;
5554                 if (rc >= phba->cfg_fcp_io_channel)
5555                         rc = 0;
5556         }
5557
5558         /*
5559          * Enable sr-iov virtual functions if supported and configured
5560          * through the module parameter.
5561          */
5562         if (phba->cfg_sriov_nr_virtfn > 0) {
5563                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5564                                                  phba->cfg_sriov_nr_virtfn);
5565                 if (rc) {
5566                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5567                                         "3020 Requested number of SR-IOV "
5568                                         "virtual functions (%d) is not "
5569                                         "supported\n",
5570                                         phba->cfg_sriov_nr_virtfn);
5571                         phba->cfg_sriov_nr_virtfn = 0;
5572                 }
5573         }
5574
5575         return 0;
5576
5577 out_free_msix:
5578         kfree(phba->sli4_hba.msix_entries);
5579 out_free_fcp_eq_hdl:
5580         kfree(phba->sli4_hba.fcp_eq_hdl);
5581 out_free_fcf_rr_bmask:
5582         kfree(phba->fcf.fcf_rr_bmask);
5583 out_remove_rpi_hdrs:
5584         lpfc_sli4_remove_rpi_hdrs(phba);
5585 out_free_active_sgl:
5586         lpfc_free_active_sgl(phba);
5587 out_destroy_cq_event_pool:
5588         lpfc_sli4_cq_event_pool_destroy(phba);
5589 out_free_bsmbx:
5590         lpfc_destroy_bootstrap_mbox(phba);
5591 out_free_mem:
5592         lpfc_mem_free(phba);
5593         return rc;
5594 }
5595
5596 /**
5597  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5598  * @phba: pointer to lpfc hba data structure.
5599  *
5600  * This routine is invoked to unset the driver internal resources set up
5601  * specific for supporting the SLI-4 HBA device it attached to.
5602  **/
5603 static void
5604 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5605 {
5606         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5607
5608         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5609         kfree(phba->sli4_hba.cpu_map);
5610         phba->sli4_hba.num_present_cpu = 0;
5611         phba->sli4_hba.num_online_cpu = 0;
5612         phba->sli4_hba.curr_disp_cpu = 0;
5613
5614         /* Free memory allocated for msi-x interrupt vector entries */
5615         kfree(phba->sli4_hba.msix_entries);
5616
5617         /* Free memory allocated for fast-path work queue handles */
5618         kfree(phba->sli4_hba.fcp_eq_hdl);
5619
5620         /* Free the allocated rpi headers. */
5621         lpfc_sli4_remove_rpi_hdrs(phba);
5622         lpfc_sli4_remove_rpis(phba);
5623
5624         /* Free eligible FCF index bmask */
5625         kfree(phba->fcf.fcf_rr_bmask);
5626
5627         /* Free the ELS sgl list */
5628         lpfc_free_active_sgl(phba);
5629         lpfc_free_els_sgl_list(phba);
5630
5631         /* Free the completion queue EQ event pool */
5632         lpfc_sli4_cq_event_release_all(phba);
5633         lpfc_sli4_cq_event_pool_destroy(phba);
5634
5635         /* Release resource identifiers. */
5636         lpfc_sli4_dealloc_resource_identifiers(phba);
5637
5638         /* Free the bsmbx region. */
5639         lpfc_destroy_bootstrap_mbox(phba);
5640
5641         /* Free the SLI Layer memory with SLI4 HBAs */
5642         lpfc_mem_free_all(phba);
5643
5644         /* Free the current connect table */
5645         list_for_each_entry_safe(conn_entry, next_conn_entry,
5646                 &phba->fcf_conn_rec_list, list) {
5647                 list_del_init(&conn_entry->list);
5648                 kfree(conn_entry);
5649         }
5650
5651         return;
5652 }
5653
5654 /**
5655  * lpfc_init_api_table_setup - Set up init api function jump table
5656  * @phba: The hba struct for which this call is being executed.
5657  * @dev_grp: The HBA PCI-Device group number.
5658  *
5659  * This routine sets up the device INIT interface API function jump table
5660  * in @phba struct.
5661  *
5662  * Returns: 0 - success, -ENODEV - failure.
5663  **/
5664 int
5665 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5666 {
5667         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5668         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5669         phba->lpfc_selective_reset = lpfc_selective_reset;
5670         switch (dev_grp) {
5671         case LPFC_PCI_DEV_LP:
5672                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5673                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5674                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5675                 break;
5676         case LPFC_PCI_DEV_OC:
5677                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5678                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5679                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5680                 break;
5681         default:
5682                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5683                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5684                                 dev_grp);
5685                 return -ENODEV;
5686                 break;
5687         }
5688         return 0;
5689 }
5690
5691 /**
5692  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5693  * @phba: pointer to lpfc hba data structure.
5694  *
5695  * This routine is invoked to set up the driver internal resources before the
5696  * device specific resource setup to support the HBA device it attached to.
5697  *
5698  * Return codes
5699  *      0 - successful
5700  *      other values - error
5701  **/
5702 static int
5703 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5704 {
5705         /*
5706          * Driver resources common to all SLI revisions
5707          */
5708         atomic_set(&phba->fast_event_count, 0);
5709         spin_lock_init(&phba->hbalock);
5710
5711         /* Initialize ndlp management spinlock */
5712         spin_lock_init(&phba->ndlp_lock);
5713
5714         INIT_LIST_HEAD(&phba->port_list);
5715         INIT_LIST_HEAD(&phba->work_list);
5716         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5717
5718         /* Initialize the wait queue head for the kernel thread */
5719         init_waitqueue_head(&phba->work_waitq);
5720
5721         /* Initialize the scsi buffer list used by driver for scsi IO */
5722         spin_lock_init(&phba->scsi_buf_list_get_lock);
5723         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5724         spin_lock_init(&phba->scsi_buf_list_put_lock);
5725         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5726
5727         /* Initialize the fabric iocb list */
5728         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5729
5730         /* Initialize list to save ELS buffers */
5731         INIT_LIST_HEAD(&phba->elsbuf);
5732
5733         /* Initialize FCF connection rec list */
5734         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5735
5736         /* Initialize OAS configuration list */
5737         spin_lock_init(&phba->devicelock);
5738         INIT_LIST_HEAD(&phba->luns);
5739
5740         return 0;
5741 }
5742
5743 /**
5744  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5745  * @phba: pointer to lpfc hba data structure.
5746  *
5747  * This routine is invoked to set up the driver internal resources after the
5748  * device specific resource setup to support the HBA device it attached to.
5749  *
5750  * Return codes
5751  *      0 - successful
5752  *      other values - error
5753  **/
5754 static int
5755 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5756 {
5757         int error;
5758
5759         /* Startup the kernel thread for this host adapter. */
5760         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5761                                           "lpfc_worker_%d", phba->brd_no);
5762         if (IS_ERR(phba->worker_thread)) {
5763                 error = PTR_ERR(phba->worker_thread);
5764                 return error;
5765         }
5766
5767         return 0;
5768 }
5769
5770 /**
5771  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5772  * @phba: pointer to lpfc hba data structure.
5773  *
5774  * This routine is invoked to unset the driver internal resources set up after
5775  * the device specific resource setup for supporting the HBA device it
5776  * attached to.
5777  **/
5778 static void
5779 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5780 {
5781         /* Stop kernel worker thread */
5782         kthread_stop(phba->worker_thread);
5783 }
5784
5785 /**
5786  * lpfc_free_iocb_list - Free iocb list.
5787  * @phba: pointer to lpfc hba data structure.
5788  *
5789  * This routine is invoked to free the driver's IOCB list and memory.
5790  **/
5791 static void
5792 lpfc_free_iocb_list(struct lpfc_hba *phba)
5793 {
5794         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5795
5796         spin_lock_irq(&phba->hbalock);
5797         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5798                                  &phba->lpfc_iocb_list, list) {
5799                 list_del(&iocbq_entry->list);
5800                 kfree(iocbq_entry);
5801                 phba->total_iocbq_bufs--;
5802         }
5803         spin_unlock_irq(&phba->hbalock);
5804
5805         return;
5806 }
5807
5808 /**
5809  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5810  * @phba: pointer to lpfc hba data structure.
5811  *
5812  * This routine is invoked to allocate and initizlize the driver's IOCB
5813  * list and set up the IOCB tag array accordingly.
5814  *
5815  * Return codes
5816  *      0 - successful
5817  *      other values - error
5818  **/
5819 static int
5820 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5821 {
5822         struct lpfc_iocbq *iocbq_entry = NULL;
5823         uint16_t iotag;
5824         int i;
5825
5826         /* Initialize and populate the iocb list per host.  */
5827         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5828         for (i = 0; i < iocb_count; i++) {
5829                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5830                 if (iocbq_entry == NULL) {
5831                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5832                                 "expected %d count. Unloading driver.\n",
5833                                 __func__, i, LPFC_IOCB_LIST_CNT);
5834                         goto out_free_iocbq;
5835                 }
5836
5837                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5838                 if (iotag == 0) {
5839                         kfree(iocbq_entry);
5840                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5841                                 "Unloading driver.\n", __func__);
5842                         goto out_free_iocbq;
5843                 }
5844                 iocbq_entry->sli4_lxritag = NO_XRI;
5845                 iocbq_entry->sli4_xritag = NO_XRI;
5846
5847                 spin_lock_irq(&phba->hbalock);
5848                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5849                 phba->total_iocbq_bufs++;
5850                 spin_unlock_irq(&phba->hbalock);
5851         }
5852
5853         return 0;
5854
5855 out_free_iocbq:
5856         lpfc_free_iocb_list(phba);
5857
5858         return -ENOMEM;
5859 }
5860
5861 /**
5862  * lpfc_free_sgl_list - Free a given sgl list.
5863  * @phba: pointer to lpfc hba data structure.
5864  * @sglq_list: pointer to the head of sgl list.
5865  *
5866  * This routine is invoked to free a give sgl list and memory.
5867  **/
5868 void
5869 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5870 {
5871         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5872
5873         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5874                 list_del(&sglq_entry->list);
5875                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5876                 kfree(sglq_entry);
5877         }
5878 }
5879
5880 /**
5881  * lpfc_free_els_sgl_list - Free els sgl list.
5882  * @phba: pointer to lpfc hba data structure.
5883  *
5884  * This routine is invoked to free the driver's els sgl list and memory.
5885  **/
5886 static void
5887 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5888 {
5889         LIST_HEAD(sglq_list);
5890         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5891
5892         /* Retrieve all els sgls from driver list */
5893         spin_lock_irq(&phba->hbalock);
5894         spin_lock(&pring->ring_lock);
5895         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5896         spin_unlock(&pring->ring_lock);
5897         spin_unlock_irq(&phba->hbalock);
5898
5899         /* Now free the sgl list */
5900         lpfc_free_sgl_list(phba, &sglq_list);
5901 }
5902
5903 /**
5904  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5905  * @phba: pointer to lpfc hba data structure.
5906  *
5907  * This routine is invoked to allocate the driver's active sgl memory.
5908  * This array will hold the sglq_entry's for active IOs.
5909  **/
5910 static int
5911 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5912 {
5913         int size;
5914         size = sizeof(struct lpfc_sglq *);
5915         size *= phba->sli4_hba.max_cfg_param.max_xri;
5916
5917         phba->sli4_hba.lpfc_sglq_active_list =
5918                 kzalloc(size, GFP_KERNEL);
5919         if (!phba->sli4_hba.lpfc_sglq_active_list)
5920                 return -ENOMEM;
5921         return 0;
5922 }
5923
5924 /**
5925  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5926  * @phba: pointer to lpfc hba data structure.
5927  *
5928  * This routine is invoked to walk through the array of active sglq entries
5929  * and free all of the resources.
5930  * This is just a place holder for now.
5931  **/
5932 static void
5933 lpfc_free_active_sgl(struct lpfc_hba *phba)
5934 {
5935         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5936 }
5937
5938 /**
5939  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5940  * @phba: pointer to lpfc hba data structure.
5941  *
5942  * This routine is invoked to allocate and initizlize the driver's sgl
5943  * list and set up the sgl xritag tag array accordingly.
5944  *
5945  **/
5946 static void
5947 lpfc_init_sgl_list(struct lpfc_hba *phba)
5948 {
5949         /* Initialize and populate the sglq list per host/VF. */
5950         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5951         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5952
5953         /* els xri-sgl book keeping */
5954         phba->sli4_hba.els_xri_cnt = 0;
5955
5956         /* scsi xri-buffer book keeping */
5957         phba->sli4_hba.scsi_xri_cnt = 0;
5958 }
5959
5960 /**
5961  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5962  * @phba: pointer to lpfc hba data structure.
5963  *
5964  * This routine is invoked to post rpi header templates to the
5965  * port for those SLI4 ports that do not support extents.  This routine
5966  * posts a PAGE_SIZE memory region to the port to hold up to
5967  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5968  * and should be called only when interrupts are disabled.
5969  *
5970  * Return codes
5971  *      0 - successful
5972  *      -ERROR - otherwise.
5973  **/
5974 int
5975 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5976 {
5977         int rc = 0;
5978         struct lpfc_rpi_hdr *rpi_hdr;
5979
5980         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5981         if (!phba->sli4_hba.rpi_hdrs_in_use)
5982                 return rc;
5983         if (phba->sli4_hba.extents_in_use)
5984                 return -EIO;
5985
5986         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5987         if (!rpi_hdr) {
5988                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5989                                 "0391 Error during rpi post operation\n");
5990                 lpfc_sli4_remove_rpis(phba);
5991                 rc = -ENODEV;
5992         }
5993
5994         return rc;
5995 }
5996
5997 /**
5998  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5999  * @phba: pointer to lpfc hba data structure.
6000  *
6001  * This routine is invoked to allocate a single 4KB memory region to
6002  * support rpis and stores them in the phba.  This single region
6003  * provides support for up to 64 rpis.  The region is used globally
6004  * by the device.
6005  *
6006  * Returns:
6007  *   A valid rpi hdr on success.
6008  *   A NULL pointer on any failure.
6009  **/
6010 struct lpfc_rpi_hdr *
6011 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
6012 {
6013         uint16_t rpi_limit, curr_rpi_range;
6014         struct lpfc_dmabuf *dmabuf;
6015         struct lpfc_rpi_hdr *rpi_hdr;
6016         uint32_t rpi_count;
6017
6018         /*
6019          * If the SLI4 port supports extents, posting the rpi header isn't
6020          * required.  Set the expected maximum count and let the actual value
6021          * get set when extents are fully allocated.
6022          */
6023         if (!phba->sli4_hba.rpi_hdrs_in_use)
6024                 return NULL;
6025         if (phba->sli4_hba.extents_in_use)
6026                 return NULL;
6027
6028         /* The limit on the logical index is just the max_rpi count. */
6029         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
6030         phba->sli4_hba.max_cfg_param.max_rpi - 1;
6031
6032         spin_lock_irq(&phba->hbalock);
6033         /*
6034          * Establish the starting RPI in this header block.  The starting
6035          * rpi is normalized to a zero base because the physical rpi is
6036          * port based.
6037          */
6038         curr_rpi_range = phba->sli4_hba.next_rpi;
6039         spin_unlock_irq(&phba->hbalock);
6040
6041         /*
6042          * The port has a limited number of rpis. The increment here
6043          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
6044          * and to allow the full max_rpi range per port.
6045          */
6046         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
6047                 rpi_count = rpi_limit - curr_rpi_range;
6048         else
6049                 rpi_count = LPFC_RPI_HDR_COUNT;
6050
6051         if (!rpi_count)
6052                 return NULL;
6053         /*
6054          * First allocate the protocol header region for the port.  The
6055          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
6056          */
6057         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6058         if (!dmabuf)
6059                 return NULL;
6060
6061         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
6062                                            LPFC_HDR_TEMPLATE_SIZE,
6063                                            &dmabuf->phys, GFP_KERNEL);
6064         if (!dmabuf->virt) {
6065                 rpi_hdr = NULL;
6066                 goto err_free_dmabuf;
6067         }
6068
6069         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6070                 rpi_hdr = NULL;
6071                 goto err_free_coherent;
6072         }
6073
6074         /* Save the rpi header data for cleanup later. */
6075         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6076         if (!rpi_hdr)
6077                 goto err_free_coherent;
6078
6079         rpi_hdr->dmabuf = dmabuf;
6080         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6081         rpi_hdr->page_count = 1;
6082         spin_lock_irq(&phba->hbalock);
6083
6084         /* The rpi_hdr stores the logical index only. */
6085         rpi_hdr->start_rpi = curr_rpi_range;
6086         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6087
6088         /*
6089          * The next_rpi stores the next logical module-64 rpi value used
6090          * to post physical rpis in subsequent rpi postings.
6091          */
6092         phba->sli4_hba.next_rpi += rpi_count;
6093         spin_unlock_irq(&phba->hbalock);
6094         return rpi_hdr;
6095
6096  err_free_coherent:
6097         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6098                           dmabuf->virt, dmabuf->phys);
6099  err_free_dmabuf:
6100         kfree(dmabuf);
6101         return NULL;
6102 }
6103
6104 /**
6105  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6106  * @phba: pointer to lpfc hba data structure.
6107  *
6108  * This routine is invoked to remove all memory resources allocated
6109  * to support rpis for SLI4 ports not supporting extents. This routine
6110  * presumes the caller has released all rpis consumed by fabric or port
6111  * logins and is prepared to have the header pages removed.
6112  **/
6113 void
6114 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6115 {
6116         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6117
6118         if (!phba->sli4_hba.rpi_hdrs_in_use)
6119                 goto exit;
6120
6121         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6122                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6123                 list_del(&rpi_hdr->list);
6124                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6125                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6126                 kfree(rpi_hdr->dmabuf);
6127                 kfree(rpi_hdr);
6128         }
6129  exit:
6130         /* There are no rpis available to the port now. */
6131         phba->sli4_hba.next_rpi = 0;
6132 }
6133
6134 /**
6135  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6136  * @pdev: pointer to pci device data structure.
6137  *
6138  * This routine is invoked to allocate the driver hba data structure for an
6139  * HBA device. If the allocation is successful, the phba reference to the
6140  * PCI device data structure is set.
6141  *
6142  * Return codes
6143  *      pointer to @phba - successful
6144  *      NULL - error
6145  **/
6146 static struct lpfc_hba *
6147 lpfc_hba_alloc(struct pci_dev *pdev)
6148 {
6149         struct lpfc_hba *phba;
6150
6151         /* Allocate memory for HBA structure */
6152         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6153         if (!phba) {
6154                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6155                 return NULL;
6156         }
6157
6158         /* Set reference to PCI device in HBA structure */
6159         phba->pcidev = pdev;
6160
6161         /* Assign an unused board number */
6162         phba->brd_no = lpfc_get_instance();
6163         if (phba->brd_no < 0) {
6164                 kfree(phba);
6165                 return NULL;
6166         }
6167         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
6168
6169         spin_lock_init(&phba->ct_ev_lock);
6170         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6171
6172         return phba;
6173 }
6174
6175 /**
6176  * lpfc_hba_free - Free driver hba data structure with a device.
6177  * @phba: pointer to lpfc hba data structure.
6178  *
6179  * This routine is invoked to free the driver hba data structure with an
6180  * HBA device.
6181  **/
6182 static void
6183 lpfc_hba_free(struct lpfc_hba *phba)
6184 {
6185         /* Release the driver assigned board number */
6186         idr_remove(&lpfc_hba_index, phba->brd_no);
6187
6188         /* Free memory allocated with sli rings */
6189         kfree(phba->sli.ring);
6190         phba->sli.ring = NULL;
6191
6192         kfree(phba);
6193         return;
6194 }
6195
6196 /**
6197  * lpfc_create_shost - Create hba physical port with associated scsi host.
6198  * @phba: pointer to lpfc hba data structure.
6199  *
6200  * This routine is invoked to create HBA physical port and associate a SCSI
6201  * host with it.
6202  *
6203  * Return codes
6204  *      0 - successful
6205  *      other values - error
6206  **/
6207 static int
6208 lpfc_create_shost(struct lpfc_hba *phba)
6209 {
6210         struct lpfc_vport *vport;
6211         struct Scsi_Host  *shost;
6212
6213         /* Initialize HBA FC structure */
6214         phba->fc_edtov = FF_DEF_EDTOV;
6215         phba->fc_ratov = FF_DEF_RATOV;
6216         phba->fc_altov = FF_DEF_ALTOV;
6217         phba->fc_arbtov = FF_DEF_ARBTOV;
6218
6219         atomic_set(&phba->sdev_cnt, 0);
6220         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6221         if (!vport)
6222                 return -ENODEV;
6223
6224         shost = lpfc_shost_from_vport(vport);
6225         phba->pport = vport;
6226         lpfc_debugfs_initialize(vport);
6227         /* Put reference to SCSI host to driver's device private data */
6228         pci_set_drvdata(phba->pcidev, shost);
6229
6230         /*
6231          * At this point we are fully registered with PSA. In addition,
6232          * any initial discovery should be completed.
6233          */
6234         vport->load_flag |= FC_ALLOW_FDMI;
6235         if (phba->cfg_enable_SmartSAN ||
6236             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
6237
6238                 /* Setup appropriate attribute masks */
6239                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
6240                 if (phba->cfg_enable_SmartSAN)
6241                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
6242                 else
6243                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
6244         }
6245         return 0;
6246 }
6247
6248 /**
6249  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6250  * @phba: pointer to lpfc hba data structure.
6251  *
6252  * This routine is invoked to destroy HBA physical port and the associated
6253  * SCSI host.
6254  **/
6255 static void
6256 lpfc_destroy_shost(struct lpfc_hba *phba)
6257 {
6258         struct lpfc_vport *vport = phba->pport;
6259
6260         /* Destroy physical port that associated with the SCSI host */
6261         destroy_port(vport);
6262
6263         return;
6264 }
6265
6266 /**
6267  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6268  * @phba: pointer to lpfc hba data structure.
6269  * @shost: the shost to be used to detect Block guard settings.
6270  *
6271  * This routine sets up the local Block guard protocol settings for @shost.
6272  * This routine also allocates memory for debugging bg buffers.
6273  **/
6274 static void
6275 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6276 {
6277         uint32_t old_mask;
6278         uint32_t old_guard;
6279
6280         int pagecnt = 10;
6281         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6282                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6283                                 "1478 Registering BlockGuard with the "
6284                                 "SCSI layer\n");
6285
6286                 old_mask = phba->cfg_prot_mask;
6287                 old_guard = phba->cfg_prot_guard;
6288
6289                 /* Only allow supported values */
6290                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6291                         SHOST_DIX_TYPE0_PROTECTION |
6292                         SHOST_DIX_TYPE1_PROTECTION);
6293                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
6294                                          SHOST_DIX_GUARD_CRC);
6295
6296                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6297                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6298                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6299
6300                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
6301                         if ((old_mask != phba->cfg_prot_mask) ||
6302                                 (old_guard != phba->cfg_prot_guard))
6303                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6304                                         "1475 Registering BlockGuard with the "
6305                                         "SCSI layer: mask %d  guard %d\n",
6306                                         phba->cfg_prot_mask,
6307                                         phba->cfg_prot_guard);
6308
6309                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
6310                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
6311                 } else
6312                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6313                                 "1479 Not Registering BlockGuard with the SCSI "
6314                                 "layer, Bad protection parameters: %d %d\n",
6315                                 old_mask, old_guard);
6316         }
6317
6318         if (!_dump_buf_data) {
6319                 while (pagecnt) {
6320                         spin_lock_init(&_dump_buf_lock);
6321                         _dump_buf_data =
6322                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6323                         if (_dump_buf_data) {
6324                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6325                                         "9043 BLKGRD: allocated %d pages for "
6326                                        "_dump_buf_data at 0x%p\n",
6327                                        (1 << pagecnt), _dump_buf_data);
6328                                 _dump_buf_data_order = pagecnt;
6329                                 memset(_dump_buf_data, 0,
6330                                        ((1 << PAGE_SHIFT) << pagecnt));
6331                                 break;
6332                         } else
6333                                 --pagecnt;
6334                 }
6335                 if (!_dump_buf_data_order)
6336                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6337                                 "9044 BLKGRD: ERROR unable to allocate "
6338                                "memory for hexdump\n");
6339         } else
6340                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6341                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6342                        "\n", _dump_buf_data);
6343         if (!_dump_buf_dif) {
6344                 while (pagecnt) {
6345                         _dump_buf_dif =
6346                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6347                         if (_dump_buf_dif) {
6348                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6349                                         "9046 BLKGRD: allocated %d pages for "
6350                                        "_dump_buf_dif at 0x%p\n",
6351                                        (1 << pagecnt), _dump_buf_dif);
6352                                 _dump_buf_dif_order = pagecnt;
6353                                 memset(_dump_buf_dif, 0,
6354                                        ((1 << PAGE_SHIFT) << pagecnt));
6355                                 break;
6356                         } else
6357                                 --pagecnt;
6358                 }
6359                 if (!_dump_buf_dif_order)
6360                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6361                         "9047 BLKGRD: ERROR unable to allocate "
6362                                "memory for hexdump\n");
6363         } else
6364                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6365                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6366                        _dump_buf_dif);
6367 }
6368
6369 /**
6370  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6371  * @phba: pointer to lpfc hba data structure.
6372  *
6373  * This routine is invoked to perform all the necessary post initialization
6374  * setup for the device.
6375  **/
6376 static void
6377 lpfc_post_init_setup(struct lpfc_hba *phba)
6378 {
6379         struct Scsi_Host  *shost;
6380         struct lpfc_adapter_event_header adapter_event;
6381
6382         /* Get the default values for Model Name and Description */
6383         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6384
6385         /*
6386          * hba setup may have changed the hba_queue_depth so we need to
6387          * adjust the value of can_queue.
6388          */
6389         shost = pci_get_drvdata(phba->pcidev);
6390         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6391         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6392                 lpfc_setup_bg(phba, shost);
6393
6394         lpfc_host_attrib_init(shost);
6395
6396         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6397                 spin_lock_irq(shost->host_lock);
6398                 lpfc_poll_start_timer(phba);
6399                 spin_unlock_irq(shost->host_lock);
6400         }
6401
6402         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6403                         "0428 Perform SCSI scan\n");
6404         /* Send board arrival event to upper layer */
6405         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6406         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6407         fc_host_post_vendor_event(shost, fc_get_event_number(),
6408                                   sizeof(adapter_event),
6409                                   (char *) &adapter_event,
6410                                   LPFC_NL_VENDOR_ID);
6411         return;
6412 }
6413
6414 /**
6415  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6416  * @phba: pointer to lpfc hba data structure.
6417  *
6418  * This routine is invoked to set up the PCI device memory space for device
6419  * with SLI-3 interface spec.
6420  *
6421  * Return codes
6422  *      0 - successful
6423  *      other values - error
6424  **/
6425 static int
6426 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6427 {
6428         struct pci_dev *pdev;
6429         unsigned long bar0map_len, bar2map_len;
6430         int i, hbq_count;
6431         void *ptr;
6432         int error = -ENODEV;
6433
6434         /* Obtain PCI device reference */
6435         if (!phba->pcidev)
6436                 return error;
6437         else
6438                 pdev = phba->pcidev;
6439
6440         /* Set the device DMA mask size */
6441         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6442          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6443                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6444                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6445                         return error;
6446                 }
6447         }
6448
6449         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6450          * required by each mapping.
6451          */
6452         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6453         bar0map_len = pci_resource_len(pdev, 0);
6454
6455         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6456         bar2map_len = pci_resource_len(pdev, 2);
6457
6458         /* Map HBA SLIM to a kernel virtual address. */
6459         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6460         if (!phba->slim_memmap_p) {
6461                 dev_printk(KERN_ERR, &pdev->dev,
6462                            "ioremap failed for SLIM memory.\n");
6463                 goto out;
6464         }
6465
6466         /* Map HBA Control Registers to a kernel virtual address. */
6467         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6468         if (!phba->ctrl_regs_memmap_p) {
6469                 dev_printk(KERN_ERR, &pdev->dev,
6470                            "ioremap failed for HBA control registers.\n");
6471                 goto out_iounmap_slim;
6472         }
6473
6474         /* Allocate memory for SLI-2 structures */
6475         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6476                                                 &phba->slim2p.phys, GFP_KERNEL);
6477         if (!phba->slim2p.virt)
6478                 goto out_iounmap;
6479
6480         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6481         phba->mbox_ext = (phba->slim2p.virt +
6482                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6483         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6484         phba->IOCBs = (phba->slim2p.virt +
6485                        offsetof(struct lpfc_sli2_slim, IOCBs));
6486
6487         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6488                                                  lpfc_sli_hbq_size(),
6489                                                  &phba->hbqslimp.phys,
6490                                                  GFP_KERNEL);
6491         if (!phba->hbqslimp.virt)
6492                 goto out_free_slim;
6493
6494         hbq_count = lpfc_sli_hbq_count();
6495         ptr = phba->hbqslimp.virt;
6496         for (i = 0; i < hbq_count; ++i) {
6497                 phba->hbqs[i].hbq_virt = ptr;
6498                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6499                 ptr += (lpfc_hbq_defs[i]->entry_count *
6500                         sizeof(struct lpfc_hbq_entry));
6501         }
6502         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6503         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6504
6505         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6506
6507         INIT_LIST_HEAD(&phba->rb_pend_list);
6508
6509         phba->MBslimaddr = phba->slim_memmap_p;
6510         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6511         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6512         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6513         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6514
6515         return 0;
6516
6517 out_free_slim:
6518         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6519                           phba->slim2p.virt, phba->slim2p.phys);
6520 out_iounmap:
6521         iounmap(phba->ctrl_regs_memmap_p);
6522 out_iounmap_slim:
6523         iounmap(phba->slim_memmap_p);
6524 out:
6525         return error;
6526 }
6527
6528 /**
6529  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6530  * @phba: pointer to lpfc hba data structure.
6531  *
6532  * This routine is invoked to unset the PCI device memory space for device
6533  * with SLI-3 interface spec.
6534  **/
6535 static void
6536 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6537 {
6538         struct pci_dev *pdev;
6539
6540         /* Obtain PCI device reference */
6541         if (!phba->pcidev)
6542                 return;
6543         else
6544                 pdev = phba->pcidev;
6545
6546         /* Free coherent DMA memory allocated */
6547         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6548                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6549         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6550                           phba->slim2p.virt, phba->slim2p.phys);
6551
6552         /* I/O memory unmap */
6553         iounmap(phba->ctrl_regs_memmap_p);
6554         iounmap(phba->slim_memmap_p);
6555
6556         return;
6557 }
6558
6559 /**
6560  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6561  * @phba: pointer to lpfc hba data structure.
6562  *
6563  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6564  * done and check status.
6565  *
6566  * Return 0 if successful, otherwise -ENODEV.
6567  **/
6568 int
6569 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6570 {
6571         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6572         struct lpfc_register reg_data;
6573         int i, port_error = 0;
6574         uint32_t if_type;
6575
6576         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6577         memset(&reg_data, 0, sizeof(reg_data));
6578         if (!phba->sli4_hba.PSMPHRregaddr)
6579                 return -ENODEV;
6580
6581         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6582         for (i = 0; i < 3000; i++) {
6583                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6584                         &portsmphr_reg.word0) ||
6585                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6586                         /* Port has a fatal POST error, break out */
6587                         port_error = -ENODEV;
6588                         break;
6589                 }
6590                 if (LPFC_POST_STAGE_PORT_READY ==
6591                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6592                         break;
6593                 msleep(10);
6594         }
6595
6596         /*
6597          * If there was a port error during POST, then don't proceed with
6598          * other register reads as the data may not be valid.  Just exit.
6599          */
6600         if (port_error) {
6601                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6602                         "1408 Port Failed POST - portsmphr=0x%x, "
6603                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6604                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6605                         portsmphr_reg.word0,
6606                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6607                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6608                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6609                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6610                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6611                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6612                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6613                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6614         } else {
6615                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6616                                 "2534 Device Info: SLIFamily=0x%x, "
6617                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6618                                 "SLIHint_2=0x%x, FT=0x%x\n",
6619                                 bf_get(lpfc_sli_intf_sli_family,
6620                                        &phba->sli4_hba.sli_intf),
6621                                 bf_get(lpfc_sli_intf_slirev,
6622                                        &phba->sli4_hba.sli_intf),
6623                                 bf_get(lpfc_sli_intf_if_type,
6624                                        &phba->sli4_hba.sli_intf),
6625                                 bf_get(lpfc_sli_intf_sli_hint1,
6626                                        &phba->sli4_hba.sli_intf),
6627                                 bf_get(lpfc_sli_intf_sli_hint2,
6628                                        &phba->sli4_hba.sli_intf),
6629                                 bf_get(lpfc_sli_intf_func_type,
6630                                        &phba->sli4_hba.sli_intf));
6631                 /*
6632                  * Check for other Port errors during the initialization
6633                  * process.  Fail the load if the port did not come up
6634                  * correctly.
6635                  */
6636                 if_type = bf_get(lpfc_sli_intf_if_type,
6637                                  &phba->sli4_hba.sli_intf);
6638                 switch (if_type) {
6639                 case LPFC_SLI_INTF_IF_TYPE_0:
6640                         phba->sli4_hba.ue_mask_lo =
6641                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6642                         phba->sli4_hba.ue_mask_hi =
6643                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6644                         uerrlo_reg.word0 =
6645                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6646                         uerrhi_reg.word0 =
6647                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6648                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6649                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6650                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6651                                                 "1422 Unrecoverable Error "
6652                                                 "Detected during POST "
6653                                                 "uerr_lo_reg=0x%x, "
6654                                                 "uerr_hi_reg=0x%x, "
6655                                                 "ue_mask_lo_reg=0x%x, "
6656                                                 "ue_mask_hi_reg=0x%x\n",
6657                                                 uerrlo_reg.word0,
6658                                                 uerrhi_reg.word0,
6659                                                 phba->sli4_hba.ue_mask_lo,
6660                                                 phba->sli4_hba.ue_mask_hi);
6661                                 port_error = -ENODEV;
6662                         }
6663                         break;
6664                 case LPFC_SLI_INTF_IF_TYPE_2:
6665                         /* Final checks.  The port status should be clean. */
6666                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6667                                 &reg_data.word0) ||
6668                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6669                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6670                                 phba->work_status[0] =
6671                                         readl(phba->sli4_hba.u.if_type2.
6672                                               ERR1regaddr);
6673                                 phba->work_status[1] =
6674                                         readl(phba->sli4_hba.u.if_type2.
6675                                               ERR2regaddr);
6676                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6677                                         "2888 Unrecoverable port error "
6678                                         "following POST: port status reg "
6679                                         "0x%x, port_smphr reg 0x%x, "
6680                                         "error 1=0x%x, error 2=0x%x\n",
6681                                         reg_data.word0,
6682                                         portsmphr_reg.word0,
6683                                         phba->work_status[0],
6684                                         phba->work_status[1]);
6685                                 port_error = -ENODEV;
6686                         }
6687                         break;
6688                 case LPFC_SLI_INTF_IF_TYPE_1:
6689                 default:
6690                         break;
6691                 }
6692         }
6693         return port_error;
6694 }
6695
6696 /**
6697  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6698  * @phba: pointer to lpfc hba data structure.
6699  * @if_type:  The SLI4 interface type getting configured.
6700  *
6701  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6702  * memory map.
6703  **/
6704 static void
6705 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6706 {
6707         switch (if_type) {
6708         case LPFC_SLI_INTF_IF_TYPE_0:
6709                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6710                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6711                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6712                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6713                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6714                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6715                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6716                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6717                 phba->sli4_hba.SLIINTFregaddr =
6718                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6719                 break;
6720         case LPFC_SLI_INTF_IF_TYPE_2:
6721                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6722                         phba->sli4_hba.conf_regs_memmap_p +
6723                                                 LPFC_CTL_PORT_ER1_OFFSET;
6724                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6725                         phba->sli4_hba.conf_regs_memmap_p +
6726                                                 LPFC_CTL_PORT_ER2_OFFSET;
6727                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6728                         phba->sli4_hba.conf_regs_memmap_p +
6729                                                 LPFC_CTL_PORT_CTL_OFFSET;
6730                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6731                         phba->sli4_hba.conf_regs_memmap_p +
6732                                                 LPFC_CTL_PORT_STA_OFFSET;
6733                 phba->sli4_hba.SLIINTFregaddr =
6734                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6735                 phba->sli4_hba.PSMPHRregaddr =
6736                         phba->sli4_hba.conf_regs_memmap_p +
6737                                                 LPFC_CTL_PORT_SEM_OFFSET;
6738                 phba->sli4_hba.RQDBregaddr =
6739                         phba->sli4_hba.conf_regs_memmap_p +
6740                                                 LPFC_ULP0_RQ_DOORBELL;
6741                 phba->sli4_hba.WQDBregaddr =
6742                         phba->sli4_hba.conf_regs_memmap_p +
6743                                                 LPFC_ULP0_WQ_DOORBELL;
6744                 phba->sli4_hba.EQCQDBregaddr =
6745                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6746                 phba->sli4_hba.MQDBregaddr =
6747                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6748                 phba->sli4_hba.BMBXregaddr =
6749                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6750                 break;
6751         case LPFC_SLI_INTF_IF_TYPE_1:
6752         default:
6753                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6754                            "FATAL - unsupported SLI4 interface type - %d\n",
6755                            if_type);
6756                 break;
6757         }
6758 }
6759
6760 /**
6761  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6762  * @phba: pointer to lpfc hba data structure.
6763  *
6764  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6765  * memory map.
6766  **/
6767 static void
6768 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6769 {
6770         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6771                 LPFC_SLIPORT_IF0_SMPHR;
6772         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6773                 LPFC_HST_ISR0;
6774         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6775                 LPFC_HST_IMR0;
6776         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6777                 LPFC_HST_ISCR0;
6778 }
6779
6780 /**
6781  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6782  * @phba: pointer to lpfc hba data structure.
6783  * @vf: virtual function number
6784  *
6785  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6786  * based on the given viftual function number, @vf.
6787  *
6788  * Return 0 if successful, otherwise -ENODEV.
6789  **/
6790 static int
6791 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6792 {
6793         if (vf > LPFC_VIR_FUNC_MAX)
6794                 return -ENODEV;
6795
6796         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6797                                 vf * LPFC_VFR_PAGE_SIZE +
6798                                         LPFC_ULP0_RQ_DOORBELL);
6799         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6800                                 vf * LPFC_VFR_PAGE_SIZE +
6801                                         LPFC_ULP0_WQ_DOORBELL);
6802         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6803                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6804         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6805                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6806         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6807                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6808         return 0;
6809 }
6810
6811 /**
6812  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6813  * @phba: pointer to lpfc hba data structure.
6814  *
6815  * This routine is invoked to create the bootstrap mailbox
6816  * region consistent with the SLI-4 interface spec.  This
6817  * routine allocates all memory necessary to communicate
6818  * mailbox commands to the port and sets up all alignment
6819  * needs.  No locks are expected to be held when calling
6820  * this routine.
6821  *
6822  * Return codes
6823  *      0 - successful
6824  *      -ENOMEM - could not allocated memory.
6825  **/
6826 static int
6827 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6828 {
6829         uint32_t bmbx_size;
6830         struct lpfc_dmabuf *dmabuf;
6831         struct dma_address *dma_address;
6832         uint32_t pa_addr;
6833         uint64_t phys_addr;
6834
6835         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6836         if (!dmabuf)
6837                 return -ENOMEM;
6838
6839         /*
6840          * The bootstrap mailbox region is comprised of 2 parts
6841          * plus an alignment restriction of 16 bytes.
6842          */
6843         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6844         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6845                                            &dmabuf->phys, GFP_KERNEL);
6846         if (!dmabuf->virt) {
6847                 kfree(dmabuf);
6848                 return -ENOMEM;
6849         }
6850
6851         /*
6852          * Initialize the bootstrap mailbox pointers now so that the register
6853          * operations are simple later.  The mailbox dma address is required
6854          * to be 16-byte aligned.  Also align the virtual memory as each
6855          * maibox is copied into the bmbx mailbox region before issuing the
6856          * command to the port.
6857          */
6858         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6859         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6860
6861         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6862                                               LPFC_ALIGN_16_BYTE);
6863         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6864                                               LPFC_ALIGN_16_BYTE);
6865
6866         /*
6867          * Set the high and low physical addresses now.  The SLI4 alignment
6868          * requirement is 16 bytes and the mailbox is posted to the port
6869          * as two 30-bit addresses.  The other data is a bit marking whether
6870          * the 30-bit address is the high or low address.
6871          * Upcast bmbx aphys to 64bits so shift instruction compiles
6872          * clean on 32 bit machines.
6873          */
6874         dma_address = &phba->sli4_hba.bmbx.dma_address;
6875         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6876         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6877         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6878                                            LPFC_BMBX_BIT1_ADDR_HI);
6879
6880         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6881         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6882                                            LPFC_BMBX_BIT1_ADDR_LO);
6883         return 0;
6884 }
6885
6886 /**
6887  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6888  * @phba: pointer to lpfc hba data structure.
6889  *
6890  * This routine is invoked to teardown the bootstrap mailbox
6891  * region and release all host resources. This routine requires
6892  * the caller to ensure all mailbox commands recovered, no
6893  * additional mailbox comands are sent, and interrupts are disabled
6894  * before calling this routine.
6895  *
6896  **/
6897 static void
6898 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6899 {
6900         dma_free_coherent(&phba->pcidev->dev,
6901                           phba->sli4_hba.bmbx.bmbx_size,
6902                           phba->sli4_hba.bmbx.dmabuf->virt,
6903                           phba->sli4_hba.bmbx.dmabuf->phys);
6904
6905         kfree(phba->sli4_hba.bmbx.dmabuf);
6906         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6907 }
6908
6909 /**
6910  * lpfc_sli4_read_config - Get the config parameters.
6911  * @phba: pointer to lpfc hba data structure.
6912  *
6913  * This routine is invoked to read the configuration parameters from the HBA.
6914  * The configuration parameters are used to set the base and maximum values
6915  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6916  * allocation for the port.
6917  *
6918  * Return codes
6919  *      0 - successful
6920  *      -ENOMEM - No available memory
6921  *      -EIO - The mailbox failed to complete successfully.
6922  **/
6923 int
6924 lpfc_sli4_read_config(struct lpfc_hba *phba)
6925 {
6926         LPFC_MBOXQ_t *pmb;
6927         struct lpfc_mbx_read_config *rd_config;
6928         union  lpfc_sli4_cfg_shdr *shdr;
6929         uint32_t shdr_status, shdr_add_status;
6930         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6931         struct lpfc_rsrc_desc_fcfcoe *desc;
6932         char *pdesc_0;
6933         uint16_t forced_link_speed;
6934         uint32_t if_type;
6935         int length, i, rc = 0, rc2;
6936
6937         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6938         if (!pmb) {
6939                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6940                                 "2011 Unable to allocate memory for issuing "
6941                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6942                 return -ENOMEM;
6943         }
6944
6945         lpfc_read_config(phba, pmb);
6946
6947         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6948         if (rc != MBX_SUCCESS) {
6949                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6950                         "2012 Mailbox failed , mbxCmd x%x "
6951                         "READ_CONFIG, mbxStatus x%x\n",
6952                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6953                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6954                 rc = -EIO;
6955         } else {
6956                 rd_config = &pmb->u.mqe.un.rd_config;
6957                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6958                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6959                         phba->sli4_hba.lnk_info.lnk_tp =
6960                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6961                         phba->sli4_hba.lnk_info.lnk_no =
6962                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6963                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6964                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6965                                         phba->sli4_hba.lnk_info.lnk_tp,
6966                                         phba->sli4_hba.lnk_info.lnk_no);
6967                 } else
6968                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6969                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6970                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6971                 phba->sli4_hba.extents_in_use =
6972                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6973                 phba->sli4_hba.max_cfg_param.max_xri =
6974                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6975                 phba->sli4_hba.max_cfg_param.xri_base =
6976                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6977                 phba->sli4_hba.max_cfg_param.max_vpi =
6978                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6979                 phba->sli4_hba.max_cfg_param.vpi_base =
6980                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6981                 phba->sli4_hba.max_cfg_param.max_rpi =
6982                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6983                 phba->sli4_hba.max_cfg_param.rpi_base =
6984                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6985                 phba->sli4_hba.max_cfg_param.max_vfi =
6986                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6987                 phba->sli4_hba.max_cfg_param.vfi_base =
6988                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6989                 phba->sli4_hba.max_cfg_param.max_fcfi =
6990                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6991                 phba->sli4_hba.max_cfg_param.max_eq =
6992                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6993                 phba->sli4_hba.max_cfg_param.max_rq =
6994                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6995                 phba->sli4_hba.max_cfg_param.max_wq =
6996                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6997                 phba->sli4_hba.max_cfg_param.max_cq =
6998                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6999                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
7000                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
7001                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
7002                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
7003                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
7004                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
7005                 phba->max_vports = phba->max_vpi;
7006                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7007                                 "2003 cfg params Extents? %d "
7008                                 "XRI(B:%d M:%d), "
7009                                 "VPI(B:%d M:%d) "
7010                                 "VFI(B:%d M:%d) "
7011                                 "RPI(B:%d M:%d) "
7012                                 "FCFI(Count:%d)\n",
7013                                 phba->sli4_hba.extents_in_use,
7014                                 phba->sli4_hba.max_cfg_param.xri_base,
7015                                 phba->sli4_hba.max_cfg_param.max_xri,
7016                                 phba->sli4_hba.max_cfg_param.vpi_base,
7017                                 phba->sli4_hba.max_cfg_param.max_vpi,
7018                                 phba->sli4_hba.max_cfg_param.vfi_base,
7019                                 phba->sli4_hba.max_cfg_param.max_vfi,
7020                                 phba->sli4_hba.max_cfg_param.rpi_base,
7021                                 phba->sli4_hba.max_cfg_param.max_rpi,
7022                                 phba->sli4_hba.max_cfg_param.max_fcfi);
7023         }
7024
7025         if (rc)
7026                 goto read_cfg_out;
7027
7028         /* Update link speed if forced link speed is supported */
7029         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7030         if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7031                 forced_link_speed =
7032                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
7033                 if (forced_link_speed) {
7034                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
7035
7036                         switch (forced_link_speed) {
7037                         case LINK_SPEED_1G:
7038                                 phba->cfg_link_speed =
7039                                         LPFC_USER_LINK_SPEED_1G;
7040                                 break;
7041                         case LINK_SPEED_2G:
7042                                 phba->cfg_link_speed =
7043                                         LPFC_USER_LINK_SPEED_2G;
7044                                 break;
7045                         case LINK_SPEED_4G:
7046                                 phba->cfg_link_speed =
7047                                         LPFC_USER_LINK_SPEED_4G;
7048                                 break;
7049                         case LINK_SPEED_8G:
7050                                 phba->cfg_link_speed =
7051                                         LPFC_USER_LINK_SPEED_8G;
7052                                 break;
7053                         case LINK_SPEED_10G:
7054                                 phba->cfg_link_speed =
7055                                         LPFC_USER_LINK_SPEED_10G;
7056                                 break;
7057                         case LINK_SPEED_16G:
7058                                 phba->cfg_link_speed =
7059                                         LPFC_USER_LINK_SPEED_16G;
7060                                 break;
7061                         case LINK_SPEED_32G:
7062                                 phba->cfg_link_speed =
7063                                         LPFC_USER_LINK_SPEED_32G;
7064                                 break;
7065                         case 0xffff:
7066                                 phba->cfg_link_speed =
7067                                         LPFC_USER_LINK_SPEED_AUTO;
7068                                 break;
7069                         default:
7070                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7071                                                 "0047 Unrecognized link "
7072                                                 "speed : %d\n",
7073                                                 forced_link_speed);
7074                                 phba->cfg_link_speed =
7075                                         LPFC_USER_LINK_SPEED_AUTO;
7076                         }
7077                 }
7078         }
7079
7080         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
7081         length = phba->sli4_hba.max_cfg_param.max_xri -
7082                         lpfc_sli4_get_els_iocb_cnt(phba);
7083         if (phba->cfg_hba_queue_depth > length) {
7084                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7085                                 "3361 HBA queue depth changed from %d to %d\n",
7086                                 phba->cfg_hba_queue_depth, length);
7087                 phba->cfg_hba_queue_depth = length;
7088         }
7089
7090         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
7091             LPFC_SLI_INTF_IF_TYPE_2)
7092                 goto read_cfg_out;
7093
7094         /* get the pf# and vf# for SLI4 if_type 2 port */
7095         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
7096                   sizeof(struct lpfc_sli4_cfg_mhdr));
7097         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
7098                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
7099                          length, LPFC_SLI4_MBX_EMBED);
7100
7101         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7102         shdr = (union lpfc_sli4_cfg_shdr *)
7103                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
7104         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7105         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7106         if (rc2 || shdr_status || shdr_add_status) {
7107                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7108                                 "3026 Mailbox failed , mbxCmd x%x "
7109                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
7110                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
7111                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
7112                 goto read_cfg_out;
7113         }
7114
7115         /* search for fc_fcoe resrouce descriptor */
7116         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
7117
7118         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
7119         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
7120         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
7121         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
7122                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
7123         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
7124                 goto read_cfg_out;
7125
7126         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
7127                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
7128                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
7129                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
7130                         phba->sli4_hba.iov.pf_number =
7131                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
7132                         phba->sli4_hba.iov.vf_number =
7133                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
7134                         break;
7135                 }
7136         }
7137
7138         if (i < LPFC_RSRC_DESC_MAX_NUM)
7139                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7140                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7141                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7142                                 phba->sli4_hba.iov.vf_number);
7143         else
7144                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7145                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7146                                 "Resrouce Descriptor:x%x\n",
7147                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7148
7149 read_cfg_out:
7150         mempool_free(pmb, phba->mbox_mem_pool);
7151         return rc;
7152 }
7153
7154 /**
7155  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7156  * @phba: pointer to lpfc hba data structure.
7157  *
7158  * This routine is invoked to setup the port-side endian order when
7159  * the port if_type is 0.  This routine has no function for other
7160  * if_types.
7161  *
7162  * Return codes
7163  *      0 - successful
7164  *      -ENOMEM - No available memory
7165  *      -EIO - The mailbox failed to complete successfully.
7166  **/
7167 static int
7168 lpfc_setup_endian_order(struct lpfc_hba *phba)
7169 {
7170         LPFC_MBOXQ_t *mboxq;
7171         uint32_t if_type, rc = 0;
7172         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7173                                       HOST_ENDIAN_HIGH_WORD1};
7174
7175         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7176         switch (if_type) {
7177         case LPFC_SLI_INTF_IF_TYPE_0:
7178                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7179                                                        GFP_KERNEL);
7180                 if (!mboxq) {
7181                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7182                                         "0492 Unable to allocate memory for "
7183                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7184                                         "command\n");
7185                         return -ENOMEM;
7186                 }
7187
7188                 /*
7189                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7190                  * two words to contain special data values and no other data.
7191                  */
7192                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7193                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7194                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7195                 if (rc != MBX_SUCCESS) {
7196                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7197                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7198                                         "failed with status x%x\n",
7199                                         rc);
7200                         rc = -EIO;
7201                 }
7202                 mempool_free(mboxq, phba->mbox_mem_pool);
7203                 break;
7204         case LPFC_SLI_INTF_IF_TYPE_2:
7205         case LPFC_SLI_INTF_IF_TYPE_1:
7206         default:
7207                 break;
7208         }
7209         return rc;
7210 }
7211
7212 /**
7213  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7214  * @phba: pointer to lpfc hba data structure.
7215  *
7216  * This routine is invoked to check the user settable queue counts for EQs and
7217  * CQs. after this routine is called the counts will be set to valid values that
7218  * adhere to the constraints of the system's interrupt vectors and the port's
7219  * queue resources.
7220  *
7221  * Return codes
7222  *      0 - successful
7223  *      -ENOMEM - No available memory
7224  **/
7225 static int
7226 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7227 {
7228         int cfg_fcp_io_channel;
7229         uint32_t cpu;
7230         uint32_t i = 0;
7231         int fof_vectors = phba->cfg_fof ? 1 : 0;
7232
7233         /*
7234          * Sanity check for configured queue parameters against the run-time
7235          * device parameters
7236          */
7237
7238         /* Sanity check on HBA EQ parameters */
7239         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7240
7241         /* It doesn't make sense to have more io channels then online CPUs */
7242         for_each_present_cpu(cpu) {
7243                 if (cpu_online(cpu))
7244                         i++;
7245         }
7246         phba->sli4_hba.num_online_cpu = i;
7247         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7248         phba->sli4_hba.curr_disp_cpu = 0;
7249
7250         if (i < cfg_fcp_io_channel) {
7251                 lpfc_printf_log(phba,
7252                                 KERN_ERR, LOG_INIT,
7253                                 "3188 Reducing IO channels to match number of "
7254                                 "online CPUs: from %d to %d\n",
7255                                 cfg_fcp_io_channel, i);
7256                 cfg_fcp_io_channel = i;
7257         }
7258
7259         if (cfg_fcp_io_channel + fof_vectors >
7260             phba->sli4_hba.max_cfg_param.max_eq) {
7261                 if (phba->sli4_hba.max_cfg_param.max_eq <
7262                     LPFC_FCP_IO_CHAN_MIN) {
7263                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7264                                         "2574 Not enough EQs (%d) from the "
7265                                         "pci function for supporting FCP "
7266                                         "EQs (%d)\n",
7267                                         phba->sli4_hba.max_cfg_param.max_eq,
7268                                         phba->cfg_fcp_io_channel);
7269                         goto out_error;
7270                 }
7271                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7272                                 "2575 Reducing IO channels to match number of "
7273                                 "available EQs: from %d to %d\n",
7274                                 cfg_fcp_io_channel,
7275                                 phba->sli4_hba.max_cfg_param.max_eq);
7276                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7277                         fof_vectors;
7278         }
7279
7280         /* The actual number of FCP event queues adopted */
7281         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7282
7283         /* Get EQ depth from module parameter, fake the default for now */
7284         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7285         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7286
7287         /* Get CQ depth from module parameter, fake the default for now */
7288         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7289         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7290
7291         return 0;
7292 out_error:
7293         return -ENOMEM;
7294 }
7295
7296 /**
7297  * lpfc_sli4_queue_create - Create all the SLI4 queues
7298  * @phba: pointer to lpfc hba data structure.
7299  *
7300  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7301  * operation. For each SLI4 queue type, the parameters such as queue entry
7302  * count (queue depth) shall be taken from the module parameter. For now,
7303  * we just use some constant number as place holder.
7304  *
7305  * Return codes
7306  *      0 - successful
7307  *      -ENOMEM - No availble memory
7308  *      -EIO - The mailbox failed to complete successfully.
7309  **/
7310 int
7311 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7312 {
7313         struct lpfc_queue *qdesc;
7314         uint32_t wqesize;
7315         int idx;
7316
7317         /*
7318          * Create HBA Record arrays.
7319          */
7320         if (!phba->cfg_fcp_io_channel)
7321                 return -ERANGE;
7322
7323         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7324         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7325         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7326         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7327         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7328         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7329
7330         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
7331                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7332         if (!phba->sli4_hba.hba_eq) {
7333                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7334                         "2576 Failed allocate memory for "
7335                         "fast-path EQ record array\n");
7336                 goto out_error;
7337         }
7338
7339         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7340                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7341         if (!phba->sli4_hba.fcp_cq) {
7342                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7343                                 "2577 Failed allocate memory for fast-path "
7344                                 "CQ record array\n");
7345                 goto out_error;
7346         }
7347
7348         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7349                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7350         if (!phba->sli4_hba.fcp_wq) {
7351                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7352                                 "2578 Failed allocate memory for fast-path "
7353                                 "WQ record array\n");
7354                 goto out_error;
7355         }
7356
7357         /*
7358          * Since the first EQ can have multiple CQs associated with it,
7359          * this array is used to quickly see if we have a FCP fast-path
7360          * CQ match.
7361          */
7362         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7363                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
7364         if (!phba->sli4_hba.fcp_cq_map) {
7365                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7366                                 "2545 Failed allocate memory for fast-path "
7367                                 "CQ map\n");
7368                 goto out_error;
7369         }
7370
7371         /*
7372          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
7373          * how many EQs to create.
7374          */
7375         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7376
7377                 /* Create EQs */
7378                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7379                                               phba->sli4_hba.eq_ecount);
7380                 if (!qdesc) {
7381                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7382                                         "0497 Failed allocate EQ (%d)\n", idx);
7383                         goto out_error;
7384                 }
7385                 phba->sli4_hba.hba_eq[idx] = qdesc;
7386
7387                 /* Create Fast Path FCP CQs */
7388                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7389                                               phba->sli4_hba.cq_ecount);
7390                 if (!qdesc) {
7391                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7392                                         "0499 Failed allocate fast-path FCP "
7393                                         "CQ (%d)\n", idx);
7394                         goto out_error;
7395                 }
7396                 phba->sli4_hba.fcp_cq[idx] = qdesc;
7397
7398                 /* Create Fast Path FCP WQs */
7399                 wqesize = (phba->fcp_embed_io) ?
7400                                 LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
7401                 qdesc = lpfc_sli4_queue_alloc(phba, wqesize,
7402                                                 phba->sli4_hba.wq_ecount);
7403                 if (!qdesc) {
7404                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7405                                         "0503 Failed allocate fast-path FCP "
7406                                         "WQ (%d)\n", idx);
7407                         goto out_error;
7408                 }
7409                 phba->sli4_hba.fcp_wq[idx] = qdesc;
7410         }
7411
7412
7413         /*
7414          * Create Slow Path Completion Queues (CQs)
7415          */
7416
7417         /* Create slow-path Mailbox Command Complete Queue */
7418         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7419                                       phba->sli4_hba.cq_ecount);
7420         if (!qdesc) {
7421                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7422                                 "0500 Failed allocate slow-path mailbox CQ\n");
7423                 goto out_error;
7424         }
7425         phba->sli4_hba.mbx_cq = qdesc;
7426
7427         /* Create slow-path ELS Complete Queue */
7428         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7429                                       phba->sli4_hba.cq_ecount);
7430         if (!qdesc) {
7431                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7432                                 "0501 Failed allocate slow-path ELS CQ\n");
7433                 goto out_error;
7434         }
7435         phba->sli4_hba.els_cq = qdesc;
7436
7437
7438         /*
7439          * Create Slow Path Work Queues (WQs)
7440          */
7441
7442         /* Create Mailbox Command Queue */
7443
7444         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7445                                       phba->sli4_hba.mq_ecount);
7446         if (!qdesc) {
7447                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7448                                 "0505 Failed allocate slow-path MQ\n");
7449                 goto out_error;
7450         }
7451         phba->sli4_hba.mbx_wq = qdesc;
7452
7453         /*
7454          * Create ELS Work Queues
7455          */
7456
7457         /* Create slow-path ELS Work Queue */
7458         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7459                                       phba->sli4_hba.wq_ecount);
7460         if (!qdesc) {
7461                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7462                                 "0504 Failed allocate slow-path ELS WQ\n");
7463                 goto out_error;
7464         }
7465         phba->sli4_hba.els_wq = qdesc;
7466
7467         /*
7468          * Create Receive Queue (RQ)
7469          */
7470
7471         /* Create Receive Queue for header */
7472         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7473                                       phba->sli4_hba.rq_ecount);
7474         if (!qdesc) {
7475                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7476                                 "0506 Failed allocate receive HRQ\n");
7477                 goto out_error;
7478         }
7479         phba->sli4_hba.hdr_rq = qdesc;
7480
7481         /* Create Receive Queue for data */
7482         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7483                                       phba->sli4_hba.rq_ecount);
7484         if (!qdesc) {
7485                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7486                                 "0507 Failed allocate receive DRQ\n");
7487                 goto out_error;
7488         }
7489         phba->sli4_hba.dat_rq = qdesc;
7490
7491         /* Create the Queues needed for Flash Optimized Fabric operations */
7492         if (phba->cfg_fof)
7493                 lpfc_fof_queue_create(phba);
7494         return 0;
7495
7496 out_error:
7497         lpfc_sli4_queue_destroy(phba);
7498         return -ENOMEM;
7499 }
7500
7501 /**
7502  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7503  * @phba: pointer to lpfc hba data structure.
7504  *
7505  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7506  * operation.
7507  *
7508  * Return codes
7509  *      0 - successful
7510  *      -ENOMEM - No available memory
7511  *      -EIO - The mailbox failed to complete successfully.
7512  **/
7513 void
7514 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7515 {
7516         int idx;
7517
7518         if (phba->cfg_fof)
7519                 lpfc_fof_queue_destroy(phba);
7520
7521         if (phba->sli4_hba.hba_eq != NULL) {
7522                 /* Release HBA event queue */
7523                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7524                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7525                                 lpfc_sli4_queue_free(
7526                                         phba->sli4_hba.hba_eq[idx]);
7527                                 phba->sli4_hba.hba_eq[idx] = NULL;
7528                         }
7529                 }
7530                 kfree(phba->sli4_hba.hba_eq);
7531                 phba->sli4_hba.hba_eq = NULL;
7532         }
7533
7534         if (phba->sli4_hba.fcp_cq != NULL) {
7535                 /* Release FCP completion queue */
7536                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7537                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7538                                 lpfc_sli4_queue_free(
7539                                         phba->sli4_hba.fcp_cq[idx]);
7540                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7541                         }
7542                 }
7543                 kfree(phba->sli4_hba.fcp_cq);
7544                 phba->sli4_hba.fcp_cq = NULL;
7545         }
7546
7547         if (phba->sli4_hba.fcp_wq != NULL) {
7548                 /* Release FCP work queue */
7549                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7550                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7551                                 lpfc_sli4_queue_free(
7552                                         phba->sli4_hba.fcp_wq[idx]);
7553                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7554                         }
7555                 }
7556                 kfree(phba->sli4_hba.fcp_wq);
7557                 phba->sli4_hba.fcp_wq = NULL;
7558         }
7559
7560         /* Release FCP CQ mapping array */
7561         if (phba->sli4_hba.fcp_cq_map != NULL) {
7562                 kfree(phba->sli4_hba.fcp_cq_map);
7563                 phba->sli4_hba.fcp_cq_map = NULL;
7564         }
7565
7566         /* Release mailbox command work queue */
7567         if (phba->sli4_hba.mbx_wq != NULL) {
7568                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7569                 phba->sli4_hba.mbx_wq = NULL;
7570         }
7571
7572         /* Release ELS work queue */
7573         if (phba->sli4_hba.els_wq != NULL) {
7574                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7575                 phba->sli4_hba.els_wq = NULL;
7576         }
7577
7578         /* Release unsolicited receive queue */
7579         if (phba->sli4_hba.hdr_rq != NULL) {
7580                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7581                 phba->sli4_hba.hdr_rq = NULL;
7582         }
7583         if (phba->sli4_hba.dat_rq != NULL) {
7584                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7585                 phba->sli4_hba.dat_rq = NULL;
7586         }
7587
7588         /* Release ELS complete queue */
7589         if (phba->sli4_hba.els_cq != NULL) {
7590                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7591                 phba->sli4_hba.els_cq = NULL;
7592         }
7593
7594         /* Release mailbox command complete queue */
7595         if (phba->sli4_hba.mbx_cq != NULL) {
7596                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7597                 phba->sli4_hba.mbx_cq = NULL;
7598         }
7599
7600         return;
7601 }
7602
7603 /**
7604  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7605  * @phba: pointer to lpfc hba data structure.
7606  *
7607  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7608  * operation.
7609  *
7610  * Return codes
7611  *      0 - successful
7612  *      -ENOMEM - No available memory
7613  *      -EIO - The mailbox failed to complete successfully.
7614  **/
7615 int
7616 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7617 {
7618         struct lpfc_sli *psli = &phba->sli;
7619         struct lpfc_sli_ring *pring;
7620         int rc = -ENOMEM;
7621         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7622         int fcp_cq_index = 0;
7623         uint32_t shdr_status, shdr_add_status;
7624         union lpfc_sli4_cfg_shdr *shdr;
7625         LPFC_MBOXQ_t *mboxq;
7626         uint32_t length;
7627
7628         /* Check for dual-ULP support */
7629         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7630         if (!mboxq) {
7631                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7632                                 "3249 Unable to allocate memory for "
7633                                 "QUERY_FW_CFG mailbox command\n");
7634                 return -ENOMEM;
7635         }
7636         length = (sizeof(struct lpfc_mbx_query_fw_config) -
7637                   sizeof(struct lpfc_sli4_cfg_mhdr));
7638         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7639                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7640                          length, LPFC_SLI4_MBX_EMBED);
7641
7642         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7643
7644         shdr = (union lpfc_sli4_cfg_shdr *)
7645                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7646         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7647         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7648         if (shdr_status || shdr_add_status || rc) {
7649                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7650                                 "3250 QUERY_FW_CFG mailbox failed with status "
7651                                 "x%x add_status x%x, mbx status x%x\n",
7652                                 shdr_status, shdr_add_status, rc);
7653                 if (rc != MBX_TIMEOUT)
7654                         mempool_free(mboxq, phba->mbox_mem_pool);
7655                 rc = -ENXIO;
7656                 goto out_error;
7657         }
7658
7659         phba->sli4_hba.fw_func_mode =
7660                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7661         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7662         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7663         phba->sli4_hba.physical_port =
7664                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
7665         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7666                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7667                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7668                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7669
7670         if (rc != MBX_TIMEOUT)
7671                 mempool_free(mboxq, phba->mbox_mem_pool);
7672
7673         /*
7674          * Set up HBA Event Queues (EQs)
7675          */
7676
7677         /* Set up HBA event queue */
7678         if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7679                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7680                                 "3147 Fast-path EQs not allocated\n");
7681                 rc = -ENOMEM;
7682                 goto out_error;
7683         }
7684         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7685                 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7686                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7687                                         "0522 Fast-path EQ (%d) not "
7688                                         "allocated\n", fcp_eqidx);
7689                         rc = -ENOMEM;
7690                         goto out_destroy_hba_eq;
7691                 }
7692                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7693                          (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7694                 if (rc) {
7695                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7696                                         "0523 Failed setup of fast-path EQ "
7697                                         "(%d), rc = 0x%x\n", fcp_eqidx,
7698                                         (uint32_t)rc);
7699                         goto out_destroy_hba_eq;
7700                 }
7701                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7702                                 "2584 HBA EQ setup: "
7703                                 "queue[%d]-id=%d\n", fcp_eqidx,
7704                                 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7705         }
7706
7707         /* Set up fast-path FCP Response Complete Queue */
7708         if (!phba->sli4_hba.fcp_cq) {
7709                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7710                                 "3148 Fast-path FCP CQ array not "
7711                                 "allocated\n");
7712                 rc = -ENOMEM;
7713                 goto out_destroy_hba_eq;
7714         }
7715
7716         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7717                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7718                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7719                                         "0526 Fast-path FCP CQ (%d) not "
7720                                         "allocated\n", fcp_cqidx);
7721                         rc = -ENOMEM;
7722                         goto out_destroy_fcp_cq;
7723                 }
7724                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7725                         phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7726                 if (rc) {
7727                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7728                                         "0527 Failed setup of fast-path FCP "
7729                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx,
7730                                         (uint32_t)rc);
7731                         goto out_destroy_fcp_cq;
7732                 }
7733
7734                 /* Setup fcp_cq_map for fast lookup */
7735                 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7736                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7737
7738                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7739                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
7740                                 "parent seq[%d]-id=%d\n",
7741                                 fcp_cqidx,
7742                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7743                                 fcp_cqidx,
7744                                 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7745         }
7746
7747         /* Set up fast-path FCP Work Queue */
7748         if (!phba->sli4_hba.fcp_wq) {
7749                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7750                                 "3149 Fast-path FCP WQ array not "
7751                                 "allocated\n");
7752                 rc = -ENOMEM;
7753                 goto out_destroy_fcp_cq;
7754         }
7755
7756         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7757                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7758                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7759                                         "0534 Fast-path FCP WQ (%d) not "
7760                                         "allocated\n", fcp_wqidx);
7761                         rc = -ENOMEM;
7762                         goto out_destroy_fcp_wq;
7763                 }
7764                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7765                                     phba->sli4_hba.fcp_cq[fcp_wqidx],
7766                                     LPFC_FCP);
7767                 if (rc) {
7768                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7769                                         "0535 Failed setup of fast-path FCP "
7770                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx,
7771                                         (uint32_t)rc);
7772                         goto out_destroy_fcp_wq;
7773                 }
7774
7775                 /* Bind this WQ to the next FCP ring */
7776                 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7777                 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7778                 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7779
7780                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7781                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7782                                 "parent cq[%d]-id=%d\n",
7783                                 fcp_wqidx,
7784                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7785                                 fcp_cq_index,
7786                                 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7787         }
7788         /*
7789          * Set up Complete Queues (CQs)
7790          */
7791
7792         /* Set up slow-path MBOX Complete Queue as the first CQ */
7793         if (!phba->sli4_hba.mbx_cq) {
7794                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7795                                 "0528 Mailbox CQ not allocated\n");
7796                 rc = -ENOMEM;
7797                 goto out_destroy_fcp_wq;
7798         }
7799         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7800                         phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7801         if (rc) {
7802                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7803                                 "0529 Failed setup of slow-path mailbox CQ: "
7804                                 "rc = 0x%x\n", (uint32_t)rc);
7805                 goto out_destroy_fcp_wq;
7806         }
7807         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7808                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7809                         phba->sli4_hba.mbx_cq->queue_id,
7810                         phba->sli4_hba.hba_eq[0]->queue_id);
7811
7812         /* Set up slow-path ELS Complete Queue */
7813         if (!phba->sli4_hba.els_cq) {
7814                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7815                                 "0530 ELS CQ not allocated\n");
7816                 rc = -ENOMEM;
7817                 goto out_destroy_mbx_cq;
7818         }
7819         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7820                         phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7821         if (rc) {
7822                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7823                                 "0531 Failed setup of slow-path ELS CQ: "
7824                                 "rc = 0x%x\n", (uint32_t)rc);
7825                 goto out_destroy_mbx_cq;
7826         }
7827         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7828                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7829                         phba->sli4_hba.els_cq->queue_id,
7830                         phba->sli4_hba.hba_eq[0]->queue_id);
7831
7832         /*
7833          * Set up all the Work Queues (WQs)
7834          */
7835
7836         /* Set up Mailbox Command Queue */
7837         if (!phba->sli4_hba.mbx_wq) {
7838                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7839                                 "0538 Slow-path MQ not allocated\n");
7840                 rc = -ENOMEM;
7841                 goto out_destroy_els_cq;
7842         }
7843         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7844                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7845         if (rc) {
7846                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7847                                 "0539 Failed setup of slow-path MQ: "
7848                                 "rc = 0x%x\n", rc);
7849                 goto out_destroy_els_cq;
7850         }
7851         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7852                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7853                         phba->sli4_hba.mbx_wq->queue_id,
7854                         phba->sli4_hba.mbx_cq->queue_id);
7855
7856         /* Set up slow-path ELS Work Queue */
7857         if (!phba->sli4_hba.els_wq) {
7858                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7859                                 "0536 Slow-path ELS WQ not allocated\n");
7860                 rc = -ENOMEM;
7861                 goto out_destroy_mbx_wq;
7862         }
7863         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7864                             phba->sli4_hba.els_cq, LPFC_ELS);
7865         if (rc) {
7866                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7867                                 "0537 Failed setup of slow-path ELS WQ: "
7868                                 "rc = 0x%x\n", (uint32_t)rc);
7869                 goto out_destroy_mbx_wq;
7870         }
7871
7872         /* Bind this WQ to the ELS ring */
7873         pring = &psli->ring[LPFC_ELS_RING];
7874         pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7875         phba->sli4_hba.els_cq->pring = pring;
7876
7877         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7878                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7879                         phba->sli4_hba.els_wq->queue_id,
7880                         phba->sli4_hba.els_cq->queue_id);
7881
7882         /*
7883          * Create Receive Queue (RQ)
7884          */
7885         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7886                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7887                                 "0540 Receive Queue not allocated\n");
7888                 rc = -ENOMEM;
7889                 goto out_destroy_els_wq;
7890         }
7891
7892         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7893         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7894
7895         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7896                             phba->sli4_hba.els_cq, LPFC_USOL);
7897         if (rc) {
7898                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7899                                 "0541 Failed setup of Receive Queue: "
7900                                 "rc = 0x%x\n", (uint32_t)rc);
7901                 goto out_destroy_fcp_wq;
7902         }
7903
7904         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7905                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7906                         "parent cq-id=%d\n",
7907                         phba->sli4_hba.hdr_rq->queue_id,
7908                         phba->sli4_hba.dat_rq->queue_id,
7909                         phba->sli4_hba.els_cq->queue_id);
7910
7911         if (phba->cfg_fof) {
7912                 rc = lpfc_fof_queue_setup(phba);
7913                 if (rc) {
7914                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7915                                         "0549 Failed setup of FOF Queues: "
7916                                         "rc = 0x%x\n", rc);
7917                         goto out_destroy_els_rq;
7918                 }
7919         }
7920
7921         /*
7922          * Configure EQ delay multipier for interrupt coalescing using
7923          * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
7924          */
7925         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
7926                         fcp_eqidx += LPFC_MAX_EQ_DELAY)
7927                 lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
7928         return 0;
7929
7930 out_destroy_els_rq:
7931         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7932 out_destroy_els_wq:
7933         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7934 out_destroy_mbx_wq:
7935         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7936 out_destroy_els_cq:
7937         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7938 out_destroy_mbx_cq:
7939         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7940 out_destroy_fcp_wq:
7941         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7942                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7943 out_destroy_fcp_cq:
7944         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7945                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7946 out_destroy_hba_eq:
7947         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7948                 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7949 out_error:
7950         return rc;
7951 }
7952
7953 /**
7954  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7955  * @phba: pointer to lpfc hba data structure.
7956  *
7957  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7958  * operation.
7959  *
7960  * Return codes
7961  *      0 - successful
7962  *      -ENOMEM - No available memory
7963  *      -EIO - The mailbox failed to complete successfully.
7964  **/
7965 void
7966 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7967 {
7968         int fcp_qidx;
7969
7970         /* Unset the queues created for Flash Optimized Fabric operations */
7971         if (phba->cfg_fof)
7972                 lpfc_fof_queue_destroy(phba);
7973         /* Unset mailbox command work queue */
7974         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7975         /* Unset ELS work queue */
7976         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7977         /* Unset unsolicited receive queue */
7978         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7979         /* Unset FCP work queue */
7980         if (phba->sli4_hba.fcp_wq) {
7981                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7982                      fcp_qidx++)
7983                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7984         }
7985         /* Unset mailbox command complete queue */
7986         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7987         /* Unset ELS complete queue */
7988         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7989         /* Unset FCP response complete queue */
7990         if (phba->sli4_hba.fcp_cq) {
7991                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7992                      fcp_qidx++)
7993                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7994         }
7995         /* Unset fast-path event queue */
7996         if (phba->sli4_hba.hba_eq) {
7997                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7998                      fcp_qidx++)
7999                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
8000         }
8001 }
8002
8003 /**
8004  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
8005  * @phba: pointer to lpfc hba data structure.
8006  *
8007  * This routine is invoked to allocate and set up a pool of completion queue
8008  * events. The body of the completion queue event is a completion queue entry
8009  * CQE. For now, this pool is used for the interrupt service routine to queue
8010  * the following HBA completion queue events for the worker thread to process:
8011  *   - Mailbox asynchronous events
8012  *   - Receive queue completion unsolicited events
8013  * Later, this can be used for all the slow-path events.
8014  *
8015  * Return codes
8016  *      0 - successful
8017  *      -ENOMEM - No available memory
8018  **/
8019 static int
8020 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
8021 {
8022         struct lpfc_cq_event *cq_event;
8023         int i;
8024
8025         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
8026                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
8027                 if (!cq_event)
8028                         goto out_pool_create_fail;
8029                 list_add_tail(&cq_event->list,
8030                               &phba->sli4_hba.sp_cqe_event_pool);
8031         }
8032         return 0;
8033
8034 out_pool_create_fail:
8035         lpfc_sli4_cq_event_pool_destroy(phba);
8036         return -ENOMEM;
8037 }
8038
8039 /**
8040  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
8041  * @phba: pointer to lpfc hba data structure.
8042  *
8043  * This routine is invoked to free the pool of completion queue events at
8044  * driver unload time. Note that, it is the responsibility of the driver
8045  * cleanup routine to free all the outstanding completion-queue events
8046  * allocated from this pool back into the pool before invoking this routine
8047  * to destroy the pool.
8048  **/
8049 static void
8050 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
8051 {
8052         struct lpfc_cq_event *cq_event, *next_cq_event;
8053
8054         list_for_each_entry_safe(cq_event, next_cq_event,
8055                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
8056                 list_del(&cq_event->list);
8057                 kfree(cq_event);
8058         }
8059 }
8060
8061 /**
8062  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8063  * @phba: pointer to lpfc hba data structure.
8064  *
8065  * This routine is the lock free version of the API invoked to allocate a
8066  * completion-queue event from the free pool.
8067  *
8068  * Return: Pointer to the newly allocated completion-queue event if successful
8069  *         NULL otherwise.
8070  **/
8071 struct lpfc_cq_event *
8072 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
8073 {
8074         struct lpfc_cq_event *cq_event = NULL;
8075
8076         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
8077                          struct lpfc_cq_event, list);
8078         return cq_event;
8079 }
8080
8081 /**
8082  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
8083  * @phba: pointer to lpfc hba data structure.
8084  *
8085  * This routine is the lock version of the API invoked to allocate a
8086  * completion-queue event from the free pool.
8087  *
8088  * Return: Pointer to the newly allocated completion-queue event if successful
8089  *         NULL otherwise.
8090  **/
8091 struct lpfc_cq_event *
8092 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
8093 {
8094         struct lpfc_cq_event *cq_event;
8095         unsigned long iflags;
8096
8097         spin_lock_irqsave(&phba->hbalock, iflags);
8098         cq_event = __lpfc_sli4_cq_event_alloc(phba);
8099         spin_unlock_irqrestore(&phba->hbalock, iflags);
8100         return cq_event;
8101 }
8102
8103 /**
8104  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
8105  * @phba: pointer to lpfc hba data structure.
8106  * @cq_event: pointer to the completion queue event to be freed.
8107  *
8108  * This routine is the lock free version of the API invoked to release a
8109  * completion-queue event back into the free pool.
8110  **/
8111 void
8112 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
8113                              struct lpfc_cq_event *cq_event)
8114 {
8115         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
8116 }
8117
8118 /**
8119  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
8120  * @phba: pointer to lpfc hba data structure.
8121  * @cq_event: pointer to the completion queue event to be freed.
8122  *
8123  * This routine is the lock version of the API invoked to release a
8124  * completion-queue event back into the free pool.
8125  **/
8126 void
8127 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
8128                            struct lpfc_cq_event *cq_event)
8129 {
8130         unsigned long iflags;
8131         spin_lock_irqsave(&phba->hbalock, iflags);
8132         __lpfc_sli4_cq_event_release(phba, cq_event);
8133         spin_unlock_irqrestore(&phba->hbalock, iflags);
8134 }
8135
8136 /**
8137  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
8138  * @phba: pointer to lpfc hba data structure.
8139  *
8140  * This routine is to free all the pending completion-queue events to the
8141  * back into the free pool for device reset.
8142  **/
8143 static void
8144 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
8145 {
8146         LIST_HEAD(cqelist);
8147         struct lpfc_cq_event *cqe;
8148         unsigned long iflags;
8149
8150         /* Retrieve all the pending WCQEs from pending WCQE lists */
8151         spin_lock_irqsave(&phba->hbalock, iflags);
8152         /* Pending FCP XRI abort events */
8153         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8154                          &cqelist);
8155         /* Pending ELS XRI abort events */
8156         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8157                          &cqelist);
8158         /* Pending asynnc events */
8159         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
8160                          &cqelist);
8161         spin_unlock_irqrestore(&phba->hbalock, iflags);
8162
8163         while (!list_empty(&cqelist)) {
8164                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
8165                 lpfc_sli4_cq_event_release(phba, cqe);
8166         }
8167 }
8168
8169 /**
8170  * lpfc_pci_function_reset - Reset pci function.
8171  * @phba: pointer to lpfc hba data structure.
8172  *
8173  * This routine is invoked to request a PCI function reset. It will destroys
8174  * all resources assigned to the PCI function which originates this request.
8175  *
8176  * Return codes
8177  *      0 - successful
8178  *      -ENOMEM - No available memory
8179  *      -EIO - The mailbox failed to complete successfully.
8180  **/
8181 int
8182 lpfc_pci_function_reset(struct lpfc_hba *phba)
8183 {
8184         LPFC_MBOXQ_t *mboxq;
8185         uint32_t rc = 0, if_type;
8186         uint32_t shdr_status, shdr_add_status;
8187         uint32_t rdy_chk;
8188         uint32_t port_reset = 0;
8189         union lpfc_sli4_cfg_shdr *shdr;
8190         struct lpfc_register reg_data;
8191         uint16_t devid;
8192
8193         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8194         switch (if_type) {
8195         case LPFC_SLI_INTF_IF_TYPE_0:
8196                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8197                                                        GFP_KERNEL);
8198                 if (!mboxq) {
8199                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8200                                         "0494 Unable to allocate memory for "
8201                                         "issuing SLI_FUNCTION_RESET mailbox "
8202                                         "command\n");
8203                         return -ENOMEM;
8204                 }
8205
8206                 /* Setup PCI function reset mailbox-ioctl command */
8207                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8208                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
8209                                  LPFC_SLI4_MBX_EMBED);
8210                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8211                 shdr = (union lpfc_sli4_cfg_shdr *)
8212                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8213                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8214                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
8215                                          &shdr->response);
8216                 if (rc != MBX_TIMEOUT)
8217                         mempool_free(mboxq, phba->mbox_mem_pool);
8218                 if (shdr_status || shdr_add_status || rc) {
8219                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8220                                         "0495 SLI_FUNCTION_RESET mailbox "
8221                                         "failed with status x%x add_status x%x,"
8222                                         " mbx status x%x\n",
8223                                         shdr_status, shdr_add_status, rc);
8224                         rc = -ENXIO;
8225                 }
8226                 break;
8227         case LPFC_SLI_INTF_IF_TYPE_2:
8228 wait:
8229                 /*
8230                  * Poll the Port Status Register and wait for RDY for
8231                  * up to 30 seconds. If the port doesn't respond, treat
8232                  * it as an error.
8233                  */
8234                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
8235                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
8236                                 STATUSregaddr, &reg_data.word0)) {
8237                                 rc = -ENODEV;
8238                                 goto out;
8239                         }
8240                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
8241                                 break;
8242                         msleep(20);
8243                 }
8244
8245                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
8246                         phba->work_status[0] = readl(
8247                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
8248                         phba->work_status[1] = readl(
8249                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
8250                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8251                                         "2890 Port not ready, port status reg "
8252                                         "0x%x error 1=0x%x, error 2=0x%x\n",
8253                                         reg_data.word0,
8254                                         phba->work_status[0],
8255                                         phba->work_status[1]);
8256                         rc = -ENODEV;
8257                         goto out;
8258                 }
8259
8260                 if (!port_reset) {
8261                         /*
8262                          * Reset the port now
8263                          */
8264                         reg_data.word0 = 0;
8265                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
8266                                LPFC_SLIPORT_LITTLE_ENDIAN);
8267                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
8268                                LPFC_SLIPORT_INIT_PORT);
8269                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
8270                                CTRLregaddr);
8271                         /* flush */
8272                         pci_read_config_word(phba->pcidev,
8273                                              PCI_DEVICE_ID, &devid);
8274
8275                         port_reset = 1;
8276                         msleep(20);
8277                         goto wait;
8278                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
8279                         rc = -ENODEV;
8280                         goto out;
8281                 }
8282                 break;
8283
8284         case LPFC_SLI_INTF_IF_TYPE_1:
8285         default:
8286                 break;
8287         }
8288
8289 out:
8290         /* Catch the not-ready port failure after a port reset. */
8291         if (rc) {
8292                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8293                                 "3317 HBA not functional: IP Reset Failed "
8294                                 "try: echo fw_reset > board_mode\n");
8295                 rc = -ENODEV;
8296         }
8297
8298         return rc;
8299 }
8300
8301 /**
8302  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8303  * @phba: pointer to lpfc hba data structure.
8304  *
8305  * This routine is invoked to set up the PCI device memory space for device
8306  * with SLI-4 interface spec.
8307  *
8308  * Return codes
8309  *      0 - successful
8310  *      other values - error
8311  **/
8312 static int
8313 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8314 {
8315         struct pci_dev *pdev;
8316         unsigned long bar0map_len, bar1map_len, bar2map_len;
8317         int error = -ENODEV;
8318         uint32_t if_type;
8319
8320         /* Obtain PCI device reference */
8321         if (!phba->pcidev)
8322                 return error;
8323         else
8324                 pdev = phba->pcidev;
8325
8326         /* Set the device DMA mask size */
8327         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8328          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8329                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8330                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8331                         return error;
8332                 }
8333         }
8334
8335         /*
8336          * The BARs and register set definitions and offset locations are
8337          * dependent on the if_type.
8338          */
8339         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8340                                   &phba->sli4_hba.sli_intf.word0)) {
8341                 return error;
8342         }
8343
8344         /* There is no SLI3 failback for SLI4 devices. */
8345         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8346             LPFC_SLI_INTF_VALID) {
8347                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8348                                 "2894 SLI_INTF reg contents invalid "
8349                                 "sli_intf reg 0x%x\n",
8350                                 phba->sli4_hba.sli_intf.word0);
8351                 return error;
8352         }
8353
8354         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8355         /*
8356          * Get the bus address of SLI4 device Bar regions and the
8357          * number of bytes required by each mapping. The mapping of the
8358          * particular PCI BARs regions is dependent on the type of
8359          * SLI4 device.
8360          */
8361         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8362                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8363                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8364
8365                 /*
8366                  * Map SLI4 PCI Config Space Register base to a kernel virtual
8367                  * addr
8368                  */
8369                 phba->sli4_hba.conf_regs_memmap_p =
8370                         ioremap(phba->pci_bar0_map, bar0map_len);
8371                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8372                         dev_printk(KERN_ERR, &pdev->dev,
8373                                    "ioremap failed for SLI4 PCI config "
8374                                    "registers.\n");
8375                         goto out;
8376                 }
8377                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8378                 /* Set up BAR0 PCI config space register memory map */
8379                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8380         } else {
8381                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8382                 bar0map_len = pci_resource_len(pdev, 1);
8383                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8384                         dev_printk(KERN_ERR, &pdev->dev,
8385                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8386                         goto out;
8387                 }
8388                 phba->sli4_hba.conf_regs_memmap_p =
8389                                 ioremap(phba->pci_bar0_map, bar0map_len);
8390                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8391                         dev_printk(KERN_ERR, &pdev->dev,
8392                                 "ioremap failed for SLI4 PCI config "
8393                                 "registers.\n");
8394                                 goto out;
8395                 }
8396                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8397         }
8398
8399         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8400             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8401                 /*
8402                  * Map SLI4 if type 0 HBA Control Register base to a kernel
8403                  * virtual address and setup the registers.
8404                  */
8405                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8406                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8407                 phba->sli4_hba.ctrl_regs_memmap_p =
8408                                 ioremap(phba->pci_bar1_map, bar1map_len);
8409                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8410                         dev_printk(KERN_ERR, &pdev->dev,
8411                            "ioremap failed for SLI4 HBA control registers.\n");
8412                         goto out_iounmap_conf;
8413                 }
8414                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8415                 lpfc_sli4_bar1_register_memmap(phba);
8416         }
8417
8418         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8419             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8420                 /*
8421                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8422                  * virtual address and setup the registers.
8423                  */
8424                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8425                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8426                 phba->sli4_hba.drbl_regs_memmap_p =
8427                                 ioremap(phba->pci_bar2_map, bar2map_len);
8428                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8429                         dev_printk(KERN_ERR, &pdev->dev,
8430                            "ioremap failed for SLI4 HBA doorbell registers.\n");
8431                         goto out_iounmap_ctrl;
8432                 }
8433                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8434                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8435                 if (error)
8436                         goto out_iounmap_all;
8437         }
8438
8439         return 0;
8440
8441 out_iounmap_all:
8442         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8443 out_iounmap_ctrl:
8444         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8445 out_iounmap_conf:
8446         iounmap(phba->sli4_hba.conf_regs_memmap_p);
8447 out:
8448         return error;
8449 }
8450
8451 /**
8452  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8453  * @phba: pointer to lpfc hba data structure.
8454  *
8455  * This routine is invoked to unset the PCI device memory space for device
8456  * with SLI-4 interface spec.
8457  **/
8458 static void
8459 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8460 {
8461         uint32_t if_type;
8462         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8463
8464         switch (if_type) {
8465         case LPFC_SLI_INTF_IF_TYPE_0:
8466                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8467                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8468                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8469                 break;
8470         case LPFC_SLI_INTF_IF_TYPE_2:
8471                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8472                 break;
8473         case LPFC_SLI_INTF_IF_TYPE_1:
8474         default:
8475                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8476                            "FATAL - unsupported SLI4 interface type - %d\n",
8477                            if_type);
8478                 break;
8479         }
8480 }
8481
8482 /**
8483  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8484  * @phba: pointer to lpfc hba data structure.
8485  *
8486  * This routine is invoked to enable the MSI-X interrupt vectors to device
8487  * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
8488  * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
8489  * once invoked, enables either all or nothing, depending on the current
8490  * availability of PCI vector resources. The device driver is responsible
8491  * for calling the individual request_irq() to register each MSI-X vector
8492  * with a interrupt handler, which is done in this function. Note that
8493  * later when device is unloading, the driver should always call free_irq()
8494  * on all MSI-X vectors it has done request_irq() on before calling
8495  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8496  * will be left with MSI-X enabled and leaks its vectors.
8497  *
8498  * Return codes
8499  *   0 - successful
8500  *   other values - error
8501  **/
8502 static int
8503 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8504 {
8505         int rc, i;
8506         LPFC_MBOXQ_t *pmb;
8507
8508         /* Set up MSI-X multi-message vectors */
8509         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8510                 phba->msix_entries[i].entry = i;
8511
8512         /* Configure MSI-X capability structure */
8513         rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
8514                                    LPFC_MSIX_VECTORS);
8515         if (rc) {
8516                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8517                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
8518                 goto vec_fail_out;
8519         }
8520         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8521                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8522                                 "0477 MSI-X entry[%d]: vector=x%x "
8523                                 "message=%d\n", i,
8524                                 phba->msix_entries[i].vector,
8525                                 phba->msix_entries[i].entry);
8526         /*
8527          * Assign MSI-X vectors to interrupt handlers
8528          */
8529
8530         /* vector-0 is associated to slow-path handler */
8531         rc = request_irq(phba->msix_entries[0].vector,
8532                          &lpfc_sli_sp_intr_handler, 0,
8533                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
8534         if (rc) {
8535                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8536                                 "0421 MSI-X slow-path request_irq failed "
8537                                 "(%d)\n", rc);
8538                 goto msi_fail_out;
8539         }
8540
8541         /* vector-1 is associated to fast-path handler */
8542         rc = request_irq(phba->msix_entries[1].vector,
8543                          &lpfc_sli_fp_intr_handler, 0,
8544                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
8545
8546         if (rc) {
8547                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8548                                 "0429 MSI-X fast-path request_irq failed "
8549                                 "(%d)\n", rc);
8550                 goto irq_fail_out;
8551         }
8552
8553         /*
8554          * Configure HBA MSI-X attention conditions to messages
8555          */
8556         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8557
8558         if (!pmb) {
8559                 rc = -ENOMEM;
8560                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8561                                 "0474 Unable to allocate memory for issuing "
8562                                 "MBOX_CONFIG_MSI command\n");
8563                 goto mem_fail_out;
8564         }
8565         rc = lpfc_config_msi(phba, pmb);
8566         if (rc)
8567                 goto mbx_fail_out;
8568         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8569         if (rc != MBX_SUCCESS) {
8570                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8571                                 "0351 Config MSI mailbox command failed, "
8572                                 "mbxCmd x%x, mbxStatus x%x\n",
8573                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8574                 goto mbx_fail_out;
8575         }
8576
8577         /* Free memory allocated for mailbox command */
8578         mempool_free(pmb, phba->mbox_mem_pool);
8579         return rc;
8580
8581 mbx_fail_out:
8582         /* Free memory allocated for mailbox command */
8583         mempool_free(pmb, phba->mbox_mem_pool);
8584
8585 mem_fail_out:
8586         /* free the irq already requested */
8587         free_irq(phba->msix_entries[1].vector, phba);
8588
8589 irq_fail_out:
8590         /* free the irq already requested */
8591         free_irq(phba->msix_entries[0].vector, phba);
8592
8593 msi_fail_out:
8594         /* Unconfigure MSI-X capability structure */
8595         pci_disable_msix(phba->pcidev);
8596
8597 vec_fail_out:
8598         return rc;
8599 }
8600
8601 /**
8602  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8603  * @phba: pointer to lpfc hba data structure.
8604  *
8605  * This routine is invoked to release the MSI-X vectors and then disable the
8606  * MSI-X interrupt mode to device with SLI-3 interface spec.
8607  **/
8608 static void
8609 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8610 {
8611         int i;
8612
8613         /* Free up MSI-X multi-message vectors */
8614         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8615                 free_irq(phba->msix_entries[i].vector, phba);
8616         /* Disable MSI-X */
8617         pci_disable_msix(phba->pcidev);
8618
8619         return;
8620 }
8621
8622 /**
8623  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8624  * @phba: pointer to lpfc hba data structure.
8625  *
8626  * This routine is invoked to enable the MSI interrupt mode to device with
8627  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8628  * enable the MSI vector. The device driver is responsible for calling the
8629  * request_irq() to register MSI vector with a interrupt the handler, which
8630  * is done in this function.
8631  *
8632  * Return codes
8633  *      0 - successful
8634  *      other values - error
8635  */
8636 static int
8637 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8638 {
8639         int rc;
8640
8641         rc = pci_enable_msi(phba->pcidev);
8642         if (!rc)
8643                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8644                                 "0462 PCI enable MSI mode success.\n");
8645         else {
8646                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8647                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
8648                 return rc;
8649         }
8650
8651         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8652                          0, LPFC_DRIVER_NAME, phba);
8653         if (rc) {
8654                 pci_disable_msi(phba->pcidev);
8655                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8656                                 "0478 MSI request_irq failed (%d)\n", rc);
8657         }
8658         return rc;
8659 }
8660
8661 /**
8662  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8663  * @phba: pointer to lpfc hba data structure.
8664  *
8665  * This routine is invoked to disable the MSI interrupt mode to device with
8666  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8667  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8668  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8669  * its vector.
8670  */
8671 static void
8672 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8673 {
8674         free_irq(phba->pcidev->irq, phba);
8675         pci_disable_msi(phba->pcidev);
8676         return;
8677 }
8678
8679 /**
8680  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8681  * @phba: pointer to lpfc hba data structure.
8682  *
8683  * This routine is invoked to enable device interrupt and associate driver's
8684  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8685  * spec. Depends on the interrupt mode configured to the driver, the driver
8686  * will try to fallback from the configured interrupt mode to an interrupt
8687  * mode which is supported by the platform, kernel, and device in the order
8688  * of:
8689  * MSI-X -> MSI -> IRQ.
8690  *
8691  * Return codes
8692  *   0 - successful
8693  *   other values - error
8694  **/
8695 static uint32_t
8696 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8697 {
8698         uint32_t intr_mode = LPFC_INTR_ERROR;
8699         int retval;
8700
8701         if (cfg_mode == 2) {
8702                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8703                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8704                 if (!retval) {
8705                         /* Now, try to enable MSI-X interrupt mode */
8706                         retval = lpfc_sli_enable_msix(phba);
8707                         if (!retval) {
8708                                 /* Indicate initialization to MSI-X mode */
8709                                 phba->intr_type = MSIX;
8710                                 intr_mode = 2;
8711                         }
8712                 }
8713         }
8714
8715         /* Fallback to MSI if MSI-X initialization failed */
8716         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8717                 retval = lpfc_sli_enable_msi(phba);
8718                 if (!retval) {
8719                         /* Indicate initialization to MSI mode */
8720                         phba->intr_type = MSI;
8721                         intr_mode = 1;
8722                 }
8723         }
8724
8725         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8726         if (phba->intr_type == NONE) {
8727                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8728                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8729                 if (!retval) {
8730                         /* Indicate initialization to INTx mode */
8731                         phba->intr_type = INTx;
8732                         intr_mode = 0;
8733                 }
8734         }
8735         return intr_mode;
8736 }
8737
8738 /**
8739  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8740  * @phba: pointer to lpfc hba data structure.
8741  *
8742  * This routine is invoked to disable device interrupt and disassociate the
8743  * driver's interrupt handler(s) from interrupt vector(s) to device with
8744  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8745  * release the interrupt vector(s) for the message signaled interrupt.
8746  **/
8747 static void
8748 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8749 {
8750         /* Disable the currently initialized interrupt mode */
8751         if (phba->intr_type == MSIX)
8752                 lpfc_sli_disable_msix(phba);
8753         else if (phba->intr_type == MSI)
8754                 lpfc_sli_disable_msi(phba);
8755         else if (phba->intr_type == INTx)
8756                 free_irq(phba->pcidev->irq, phba);
8757
8758         /* Reset interrupt management states */
8759         phba->intr_type = NONE;
8760         phba->sli.slistat.sli_intr = 0;
8761
8762         return;
8763 }
8764
8765 /**
8766  * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8767  * @phba: pointer to lpfc hba data structure.
8768  *
8769  * Find next available CPU to use for IRQ to CPU affinity.
8770  */
8771 static int
8772 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8773 {
8774         struct lpfc_vector_map_info *cpup;
8775         int cpu;
8776
8777         cpup = phba->sli4_hba.cpu_map;
8778         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8779                 /* CPU must be online */
8780                 if (cpu_online(cpu)) {
8781                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8782                             (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8783                             (cpup->phys_id == phys_id)) {
8784                                 return cpu;
8785                         }
8786                 }
8787                 cpup++;
8788         }
8789
8790         /*
8791          * If we get here, we have used ALL CPUs for the specific
8792          * phys_id. Now we need to clear out lpfc_used_cpu and start
8793          * reusing CPUs.
8794          */
8795
8796         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8797                 if (lpfc_used_cpu[cpu] == phys_id)
8798                         lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8799         }
8800
8801         cpup = phba->sli4_hba.cpu_map;
8802         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8803                 /* CPU must be online */
8804                 if (cpu_online(cpu)) {
8805                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8806                             (cpup->phys_id == phys_id)) {
8807                                 return cpu;
8808                         }
8809                 }
8810                 cpup++;
8811         }
8812         return LPFC_VECTOR_MAP_EMPTY;
8813 }
8814
8815 /**
8816  * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8817  * @phba:       pointer to lpfc hba data structure.
8818  * @vectors:    number of HBA vectors
8819  *
8820  * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8821  * affinization across multple physical CPUs (numa nodes).
8822  * In addition, this routine will assign an IO channel for each CPU
8823  * to use when issuing I/Os.
8824  */
8825 static int
8826 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8827 {
8828         int i, idx, saved_chann, used_chann, cpu, phys_id;
8829         int max_phys_id, min_phys_id;
8830         int num_io_channel, first_cpu, chan;
8831         struct lpfc_vector_map_info *cpup;
8832 #ifdef CONFIG_X86
8833         struct cpuinfo_x86 *cpuinfo;
8834 #endif
8835         uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8836
8837         /* If there is no mapping, just return */
8838         if (!phba->cfg_fcp_cpu_map)
8839                 return 1;
8840
8841         /* Init cpu_map array */
8842         memset(phba->sli4_hba.cpu_map, 0xff,
8843                (sizeof(struct lpfc_vector_map_info) *
8844                 phba->sli4_hba.num_present_cpu));
8845
8846         max_phys_id = 0;
8847         min_phys_id = 0xff;
8848         phys_id = 0;
8849         num_io_channel = 0;
8850         first_cpu = LPFC_VECTOR_MAP_EMPTY;
8851
8852         /* Update CPU map with physical id and core id of each CPU */
8853         cpup = phba->sli4_hba.cpu_map;
8854         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8855 #ifdef CONFIG_X86
8856                 cpuinfo = &cpu_data(cpu);
8857                 cpup->phys_id = cpuinfo->phys_proc_id;
8858                 cpup->core_id = cpuinfo->cpu_core_id;
8859 #else
8860                 /* No distinction between CPUs for other platforms */
8861                 cpup->phys_id = 0;
8862                 cpup->core_id = 0;
8863 #endif
8864
8865                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8866                                 "3328 CPU physid %d coreid %d\n",
8867                                 cpup->phys_id, cpup->core_id);
8868
8869                 if (cpup->phys_id > max_phys_id)
8870                         max_phys_id = cpup->phys_id;
8871                 if (cpup->phys_id < min_phys_id)
8872                         min_phys_id = cpup->phys_id;
8873                 cpup++;
8874         }
8875
8876         phys_id = min_phys_id;
8877         /* Now associate the HBA vectors with specific CPUs */
8878         for (idx = 0; idx < vectors; idx++) {
8879                 cpup = phba->sli4_hba.cpu_map;
8880                 cpu = lpfc_find_next_cpu(phba, phys_id);
8881                 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8882
8883                         /* Try for all phys_id's */
8884                         for (i = 1; i < max_phys_id; i++) {
8885                                 phys_id++;
8886                                 if (phys_id > max_phys_id)
8887                                         phys_id = min_phys_id;
8888                                 cpu = lpfc_find_next_cpu(phba, phys_id);
8889                                 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8890                                         continue;
8891                                 goto found;
8892                         }
8893
8894                         /* Use round robin for scheduling */
8895                         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8896                         chan = 0;
8897                         cpup = phba->sli4_hba.cpu_map;
8898                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8899                                 cpup->channel_id = chan;
8900                                 cpup++;
8901                                 chan++;
8902                                 if (chan >= phba->cfg_fcp_io_channel)
8903                                         chan = 0;
8904                         }
8905
8906                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8907                                         "3329 Cannot set affinity:"
8908                                         "Error mapping vector %d (%d)\n",
8909                                         idx, vectors);
8910                         return 0;
8911                 }
8912 found:
8913                 cpup += cpu;
8914                 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8915                         lpfc_used_cpu[cpu] = phys_id;
8916
8917                 /* Associate vector with selected CPU */
8918                 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8919
8920                 /* Associate IO channel with selected CPU */
8921                 cpup->channel_id = idx;
8922                 num_io_channel++;
8923
8924                 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8925                         first_cpu = cpu;
8926
8927                 /* Now affinitize to the selected CPU */
8928                 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8929                                           vector, get_cpu_mask(cpu));
8930
8931                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8932                                 "3330 Set Affinity: CPU %d channel %d "
8933                                 "irq %d (%x)\n",
8934                                 cpu, cpup->channel_id,
8935                                 phba->sli4_hba.msix_entries[idx].vector, i);
8936
8937                 /* Spread vector mapping across multple physical CPU nodes */
8938                 phys_id++;
8939                 if (phys_id > max_phys_id)
8940                         phys_id = min_phys_id;
8941         }
8942
8943         /*
8944          * Finally fill in the IO channel for any remaining CPUs.
8945          * At this point, all IO channels have been assigned to a specific
8946          * MSIx vector, mapped to a specific CPU.
8947          * Base the remaining IO channel assigned, to IO channels already
8948          * assigned to other CPUs on the same phys_id.
8949          */
8950         for (i = min_phys_id; i <= max_phys_id; i++) {
8951                 /*
8952                  * If there are no io channels already mapped to
8953                  * this phys_id, just round robin thru the io_channels.
8954                  * Setup chann[] for round robin.
8955                  */
8956                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8957                         chann[idx] = idx;
8958
8959                 saved_chann = 0;
8960                 used_chann = 0;
8961
8962                 /*
8963                  * First build a list of IO channels already assigned
8964                  * to this phys_id before reassigning the same IO
8965                  * channels to the remaining CPUs.
8966                  */
8967                 cpup = phba->sli4_hba.cpu_map;
8968                 cpu = first_cpu;
8969                 cpup += cpu;
8970                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8971                      idx++) {
8972                         if (cpup->phys_id == i) {
8973                                 /*
8974                                  * Save any IO channels that are
8975                                  * already mapped to this phys_id.
8976                                  */
8977                                 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8978                                         if (saved_chann <=
8979                                             LPFC_FCP_IO_CHAN_MAX) {
8980                                                 chann[saved_chann] =
8981                                                         cpup->channel_id;
8982                                                 saved_chann++;
8983                                         }
8984                                         goto out;
8985                                 }
8986
8987                                 /* See if we are using round-robin */
8988                                 if (saved_chann == 0)
8989                                         saved_chann =
8990                                                 phba->cfg_fcp_io_channel;
8991
8992                                 /* Associate next IO channel with CPU */
8993                                 cpup->channel_id = chann[used_chann];
8994                                 num_io_channel++;
8995                                 used_chann++;
8996                                 if (used_chann == saved_chann)
8997                                         used_chann = 0;
8998
8999                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9000                                                 "3331 Set IO_CHANN "
9001                                                 "CPU %d channel %d\n",
9002                                                 idx, cpup->channel_id);
9003                         }
9004 out:
9005                         cpu++;
9006                         if (cpu >= phba->sli4_hba.num_present_cpu) {
9007                                 cpup = phba->sli4_hba.cpu_map;
9008                                 cpu = 0;
9009                         } else {
9010                                 cpup++;
9011                         }
9012                 }
9013         }
9014
9015         if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
9016                 cpup = phba->sli4_hba.cpu_map;
9017                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
9018                         if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
9019                                 cpup->channel_id = 0;
9020                                 num_io_channel++;
9021
9022                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9023                                                 "3332 Assign IO_CHANN "
9024                                                 "CPU %d channel %d\n",
9025                                                 idx, cpup->channel_id);
9026                         }
9027                         cpup++;
9028                 }
9029         }
9030
9031         /* Sanity check */
9032         if (num_io_channel != phba->sli4_hba.num_present_cpu)
9033                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9034                                 "3333 Set affinity mismatch:"
9035                                 "%d chann != %d cpus: %d vectors\n",
9036                                 num_io_channel, phba->sli4_hba.num_present_cpu,
9037                                 vectors);
9038
9039         /* Enable using cpu affinity for scheduling */
9040         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
9041         return 1;
9042 }
9043
9044
9045 /**
9046  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
9047  * @phba: pointer to lpfc hba data structure.
9048  *
9049  * This routine is invoked to enable the MSI-X interrupt vectors to device
9050  * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
9051  * is called to enable the MSI-X vectors. The device driver is responsible
9052  * for calling the individual request_irq() to register each MSI-X vector
9053  * with a interrupt handler, which is done in this function. Note that
9054  * later when device is unloading, the driver should always call free_irq()
9055  * on all MSI-X vectors it has done request_irq() on before calling
9056  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
9057  * will be left with MSI-X enabled and leaks its vectors.
9058  *
9059  * Return codes
9060  * 0 - successful
9061  * other values - error
9062  **/
9063 static int
9064 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
9065 {
9066         int vectors, rc, index;
9067
9068         /* Set up MSI-X multi-message vectors */
9069         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
9070                 phba->sli4_hba.msix_entries[index].entry = index;
9071
9072         /* Configure MSI-X capability structure */
9073         vectors = phba->cfg_fcp_io_channel;
9074         if (phba->cfg_fof) {
9075                 phba->sli4_hba.msix_entries[index].entry = index;
9076                 vectors++;
9077         }
9078         rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
9079                                    2, vectors);
9080         if (rc < 0) {
9081                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9082                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
9083                 goto vec_fail_out;
9084         }
9085         vectors = rc;
9086
9087         /* Log MSI-X vector assignment */
9088         for (index = 0; index < vectors; index++)
9089                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9090                                 "0489 MSI-X entry[%d]: vector=x%x "
9091                                 "message=%d\n", index,
9092                                 phba->sli4_hba.msix_entries[index].vector,
9093                                 phba->sli4_hba.msix_entries[index].entry);
9094
9095         /* Assign MSI-X vectors to interrupt handlers */
9096         for (index = 0; index < vectors; index++) {
9097                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
9098                 snprintf((char *)&phba->sli4_hba.handler_name[index],
9099                          LPFC_SLI4_HANDLER_NAME_SZ,
9100                          LPFC_DRIVER_HANDLER_NAME"%d", index);
9101
9102                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9103                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9104                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
9105                 if (phba->cfg_fof && (index == (vectors - 1)))
9106                         rc = request_irq(
9107                                 phba->sli4_hba.msix_entries[index].vector,
9108                                  &lpfc_sli4_fof_intr_handler, 0,
9109                                  (char *)&phba->sli4_hba.handler_name[index],
9110                                  &phba->sli4_hba.fcp_eq_hdl[index]);
9111                 else
9112                         rc = request_irq(
9113                                 phba->sli4_hba.msix_entries[index].vector,
9114                                  &lpfc_sli4_hba_intr_handler, 0,
9115                                  (char *)&phba->sli4_hba.handler_name[index],
9116                                  &phba->sli4_hba.fcp_eq_hdl[index]);
9117                 if (rc) {
9118                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9119                                         "0486 MSI-X fast-path (%d) "
9120                                         "request_irq failed (%d)\n", index, rc);
9121                         goto cfg_fail_out;
9122                 }
9123         }
9124
9125         if (phba->cfg_fof)
9126                 vectors--;
9127
9128         if (vectors != phba->cfg_fcp_io_channel) {
9129                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9130                                 "3238 Reducing IO channels to match number of "
9131                                 "MSI-X vectors, requested %d got %d\n",
9132                                 phba->cfg_fcp_io_channel, vectors);
9133                 phba->cfg_fcp_io_channel = vectors;
9134         }
9135
9136         if (!shost_use_blk_mq(lpfc_shost_from_vport(phba->pport)))
9137                 lpfc_sli4_set_affinity(phba, vectors);
9138         return rc;
9139
9140 cfg_fail_out:
9141         /* free the irq already requested */
9142         for (--index; index >= 0; index--) {
9143                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9144                                           vector, NULL);
9145                 free_irq(phba->sli4_hba.msix_entries[index].vector,
9146                          &phba->sli4_hba.fcp_eq_hdl[index]);
9147         }
9148
9149         /* Unconfigure MSI-X capability structure */
9150         pci_disable_msix(phba->pcidev);
9151
9152 vec_fail_out:
9153         return rc;
9154 }
9155
9156 /**
9157  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
9158  * @phba: pointer to lpfc hba data structure.
9159  *
9160  * This routine is invoked to release the MSI-X vectors and then disable the
9161  * MSI-X interrupt mode to device with SLI-4 interface spec.
9162  **/
9163 static void
9164 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
9165 {
9166         int index;
9167
9168         /* Free up MSI-X multi-message vectors */
9169         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9170                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9171                                           vector, NULL);
9172                 free_irq(phba->sli4_hba.msix_entries[index].vector,
9173                          &phba->sli4_hba.fcp_eq_hdl[index]);
9174         }
9175         if (phba->cfg_fof) {
9176                 free_irq(phba->sli4_hba.msix_entries[index].vector,
9177                          &phba->sli4_hba.fcp_eq_hdl[index]);
9178         }
9179         /* Disable MSI-X */
9180         pci_disable_msix(phba->pcidev);
9181
9182         return;
9183 }
9184
9185 /**
9186  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9187  * @phba: pointer to lpfc hba data structure.
9188  *
9189  * This routine is invoked to enable the MSI interrupt mode to device with
9190  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9191  * to enable the MSI vector. The device driver is responsible for calling
9192  * the request_irq() to register MSI vector with a interrupt the handler,
9193  * which is done in this function.
9194  *
9195  * Return codes
9196  *      0 - successful
9197  *      other values - error
9198  **/
9199 static int
9200 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9201 {
9202         int rc, index;
9203
9204         rc = pci_enable_msi(phba->pcidev);
9205         if (!rc)
9206                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9207                                 "0487 PCI enable MSI mode success.\n");
9208         else {
9209                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9210                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
9211                 return rc;
9212         }
9213
9214         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9215                          0, LPFC_DRIVER_NAME, phba);
9216         if (rc) {
9217                 pci_disable_msi(phba->pcidev);
9218                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9219                                 "0490 MSI request_irq failed (%d)\n", rc);
9220                 return rc;
9221         }
9222
9223         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9224                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9225                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9226         }
9227
9228         if (phba->cfg_fof) {
9229                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9230                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9231         }
9232         return 0;
9233 }
9234
9235 /**
9236  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
9237  * @phba: pointer to lpfc hba data structure.
9238  *
9239  * This routine is invoked to disable the MSI interrupt mode to device with
9240  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
9241  * done request_irq() on before calling pci_disable_msi(). Failure to do so
9242  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
9243  * its vector.
9244  **/
9245 static void
9246 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
9247 {
9248         free_irq(phba->pcidev->irq, phba);
9249         pci_disable_msi(phba->pcidev);
9250         return;
9251 }
9252
9253 /**
9254  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9255  * @phba: pointer to lpfc hba data structure.
9256  *
9257  * This routine is invoked to enable device interrupt and associate driver's
9258  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9259  * interface spec. Depends on the interrupt mode configured to the driver,
9260  * the driver will try to fallback from the configured interrupt mode to an
9261  * interrupt mode which is supported by the platform, kernel, and device in
9262  * the order of:
9263  * MSI-X -> MSI -> IRQ.
9264  *
9265  * Return codes
9266  *      0 - successful
9267  *      other values - error
9268  **/
9269 static uint32_t
9270 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9271 {
9272         uint32_t intr_mode = LPFC_INTR_ERROR;
9273         int retval, index;
9274
9275         if (cfg_mode == 2) {
9276                 /* Preparation before conf_msi mbox cmd */
9277                 retval = 0;
9278                 if (!retval) {
9279                         /* Now, try to enable MSI-X interrupt mode */
9280                         retval = lpfc_sli4_enable_msix(phba);
9281                         if (!retval) {
9282                                 /* Indicate initialization to MSI-X mode */
9283                                 phba->intr_type = MSIX;
9284                                 intr_mode = 2;
9285                         }
9286                 }
9287         }
9288
9289         /* Fallback to MSI if MSI-X initialization failed */
9290         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9291                 retval = lpfc_sli4_enable_msi(phba);
9292                 if (!retval) {
9293                         /* Indicate initialization to MSI mode */
9294                         phba->intr_type = MSI;
9295                         intr_mode = 1;
9296                 }
9297         }
9298
9299         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9300         if (phba->intr_type == NONE) {
9301                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9302                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9303                 if (!retval) {
9304                         /* Indicate initialization to INTx mode */
9305                         phba->intr_type = INTx;
9306                         intr_mode = 0;
9307                         for (index = 0; index < phba->cfg_fcp_io_channel;
9308                              index++) {
9309                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9310                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9311                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9312                                         fcp_eq_in_use, 1);
9313                         }
9314                         if (phba->cfg_fof) {
9315                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9316                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9317                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9318                                         fcp_eq_in_use, 1);
9319                         }
9320                 }
9321         }
9322         return intr_mode;
9323 }
9324
9325 /**
9326  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9327  * @phba: pointer to lpfc hba data structure.
9328  *
9329  * This routine is invoked to disable device interrupt and disassociate
9330  * the driver's interrupt handler(s) from interrupt vector(s) to device
9331  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9332  * will release the interrupt vector(s) for the message signaled interrupt.
9333  **/
9334 static void
9335 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9336 {
9337         /* Disable the currently initialized interrupt mode */
9338         if (phba->intr_type == MSIX)
9339                 lpfc_sli4_disable_msix(phba);
9340         else if (phba->intr_type == MSI)
9341                 lpfc_sli4_disable_msi(phba);
9342         else if (phba->intr_type == INTx)
9343                 free_irq(phba->pcidev->irq, phba);
9344
9345         /* Reset interrupt management states */
9346         phba->intr_type = NONE;
9347         phba->sli.slistat.sli_intr = 0;
9348
9349         return;
9350 }
9351
9352 /**
9353  * lpfc_unset_hba - Unset SLI3 hba device initialization
9354  * @phba: pointer to lpfc hba data structure.
9355  *
9356  * This routine is invoked to unset the HBA device initialization steps to
9357  * a device with SLI-3 interface spec.
9358  **/
9359 static void
9360 lpfc_unset_hba(struct lpfc_hba *phba)
9361 {
9362         struct lpfc_vport *vport = phba->pport;
9363         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
9364
9365         spin_lock_irq(shost->host_lock);
9366         vport->load_flag |= FC_UNLOADING;
9367         spin_unlock_irq(shost->host_lock);
9368
9369         kfree(phba->vpi_bmask);
9370         kfree(phba->vpi_ids);
9371
9372         lpfc_stop_hba_timers(phba);
9373
9374         phba->pport->work_port_events = 0;
9375
9376         lpfc_sli_hba_down(phba);
9377
9378         lpfc_sli_brdrestart(phba);
9379
9380         lpfc_sli_disable_intr(phba);
9381
9382         return;
9383 }
9384
9385 /**
9386  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9387  * @phba: Pointer to HBA context object.
9388  *
9389  * This function is called in the SLI4 code path to wait for completion
9390  * of device's XRIs exchange busy. It will check the XRI exchange busy
9391  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9392  * that, it will check the XRI exchange busy on outstanding FCP and ELS
9393  * I/Os every 30 seconds, log error message, and wait forever. Only when
9394  * all XRI exchange busy complete, the driver unload shall proceed with
9395  * invoking the function reset ioctl mailbox command to the CNA and the
9396  * the rest of the driver unload resource release.
9397  **/
9398 static void
9399 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9400 {
9401         int wait_time = 0;
9402         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9403         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9404
9405         while (!fcp_xri_cmpl || !els_xri_cmpl) {
9406                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9407                         if (!fcp_xri_cmpl)
9408                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9409                                                 "2877 FCP XRI exchange busy "
9410                                                 "wait time: %d seconds.\n",
9411                                                 wait_time/1000);
9412                         if (!els_xri_cmpl)
9413                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9414                                                 "2878 ELS XRI exchange busy "
9415                                                 "wait time: %d seconds.\n",
9416                                                 wait_time/1000);
9417                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9418                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9419                 } else {
9420                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9421                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9422                 }
9423                 fcp_xri_cmpl =
9424                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9425                 els_xri_cmpl =
9426                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9427         }
9428 }
9429
9430 /**
9431  * lpfc_sli4_hba_unset - Unset the fcoe hba
9432  * @phba: Pointer to HBA context object.
9433  *
9434  * This function is called in the SLI4 code path to reset the HBA's FCoE
9435  * function. The caller is not required to hold any lock. This routine
9436  * issues PCI function reset mailbox command to reset the FCoE function.
9437  * At the end of the function, it calls lpfc_hba_down_post function to
9438  * free any pending commands.
9439  **/
9440 static void
9441 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9442 {
9443         int wait_cnt = 0;
9444         LPFC_MBOXQ_t *mboxq;
9445         struct pci_dev *pdev = phba->pcidev;
9446
9447         lpfc_stop_hba_timers(phba);
9448         phba->sli4_hba.intr_enable = 0;
9449
9450         /*
9451          * Gracefully wait out the potential current outstanding asynchronous
9452          * mailbox command.
9453          */
9454
9455         /* First, block any pending async mailbox command from posted */
9456         spin_lock_irq(&phba->hbalock);
9457         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9458         spin_unlock_irq(&phba->hbalock);
9459         /* Now, trying to wait it out if we can */
9460         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9461                 msleep(10);
9462                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9463                         break;
9464         }
9465         /* Forcefully release the outstanding mailbox command if timed out */
9466         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9467                 spin_lock_irq(&phba->hbalock);
9468                 mboxq = phba->sli.mbox_active;
9469                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9470                 __lpfc_mbox_cmpl_put(phba, mboxq);
9471                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9472                 phba->sli.mbox_active = NULL;
9473                 spin_unlock_irq(&phba->hbalock);
9474         }
9475
9476         /* Abort all iocbs associated with the hba */
9477         lpfc_sli_hba_iocb_abort(phba);
9478
9479         /* Wait for completion of device XRI exchange busy */
9480         lpfc_sli4_xri_exchange_busy_wait(phba);
9481
9482         /* Disable PCI subsystem interrupt */
9483         lpfc_sli4_disable_intr(phba);
9484
9485         /* Disable SR-IOV if enabled */
9486         if (phba->cfg_sriov_nr_virtfn)
9487                 pci_disable_sriov(pdev);
9488
9489         /* Stop kthread signal shall trigger work_done one more time */
9490         kthread_stop(phba->worker_thread);
9491
9492         /* Reset SLI4 HBA FCoE function */
9493         lpfc_pci_function_reset(phba);
9494         lpfc_sli4_queue_destroy(phba);
9495
9496         /* Stop the SLI4 device port */
9497         phba->pport->work_port_events = 0;
9498 }
9499
9500  /**
9501  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9502  * @phba: Pointer to HBA context object.
9503  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9504  *
9505  * This function is called in the SLI4 code path to read the port's
9506  * sli4 capabilities.
9507  *
9508  * This function may be be called from any context that can block-wait
9509  * for the completion.  The expectation is that this routine is called
9510  * typically from probe_one or from the online routine.
9511  **/
9512 int
9513 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9514 {
9515         int rc;
9516         struct lpfc_mqe *mqe;
9517         struct lpfc_pc_sli4_params *sli4_params;
9518         uint32_t mbox_tmo;
9519
9520         rc = 0;
9521         mqe = &mboxq->u.mqe;
9522
9523         /* Read the port's SLI4 Parameters port capabilities */
9524         lpfc_pc_sli4_params(mboxq);
9525         if (!phba->sli4_hba.intr_enable)
9526                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9527         else {
9528                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9529                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9530         }
9531
9532         if (unlikely(rc))
9533                 return 1;
9534
9535         sli4_params = &phba->sli4_hba.pc_sli4_params;
9536         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9537         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9538         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9539         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9540                                              &mqe->un.sli4_params);
9541         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9542                                              &mqe->un.sli4_params);
9543         sli4_params->proto_types = mqe->un.sli4_params.word3;
9544         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9545         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9546         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9547         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9548         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9549         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9550         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9551         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9552         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9553         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9554         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9555         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9556         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9557         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9558         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9559         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9560         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9561         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9562         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9563         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9564
9565         /* Make sure that sge_supp_len can be handled by the driver */
9566         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9567                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9568
9569         return rc;
9570 }
9571
9572 /**
9573  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9574  * @phba: Pointer to HBA context object.
9575  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9576  *
9577  * This function is called in the SLI4 code path to read the port's
9578  * sli4 capabilities.
9579  *
9580  * This function may be be called from any context that can block-wait
9581  * for the completion.  The expectation is that this routine is called
9582  * typically from probe_one or from the online routine.
9583  **/
9584 int
9585 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9586 {
9587         int rc;
9588         struct lpfc_mqe *mqe = &mboxq->u.mqe;
9589         struct lpfc_pc_sli4_params *sli4_params;
9590         uint32_t mbox_tmo;
9591         int length;
9592         struct lpfc_sli4_parameters *mbx_sli4_parameters;
9593
9594         /*
9595          * By default, the driver assumes the SLI4 port requires RPI
9596          * header postings.  The SLI4_PARAM response will correct this
9597          * assumption.
9598          */
9599         phba->sli4_hba.rpi_hdrs_in_use = 1;
9600
9601         /* Read the port's SLI4 Config Parameters */
9602         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9603                   sizeof(struct lpfc_sli4_cfg_mhdr));
9604         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9605                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9606                          length, LPFC_SLI4_MBX_EMBED);
9607         if (!phba->sli4_hba.intr_enable)
9608                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9609         else {
9610                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9611                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9612         }
9613         if (unlikely(rc))
9614                 return rc;
9615         sli4_params = &phba->sli4_hba.pc_sli4_params;
9616         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9617         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9618         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9619         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9620         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9621                                              mbx_sli4_parameters);
9622         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9623                                              mbx_sli4_parameters);
9624         if (bf_get(cfg_phwq, mbx_sli4_parameters))
9625                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9626         else
9627                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9628         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9629         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9630         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9631         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9632         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9633         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9634         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9635         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9636         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9637                                             mbx_sli4_parameters);
9638         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9639                                            mbx_sli4_parameters);
9640         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9641         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9642
9643         /* Make sure that sge_supp_len can be handled by the driver */
9644         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9645                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9646
9647         /*
9648          * Issue IOs with CDB embedded in WQE to minimized the number
9649          * of DMAs the firmware has to do. Setting this to 1 also forces
9650          * the driver to use 128 bytes WQEs for FCP IOs.
9651          */
9652         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
9653                 phba->fcp_embed_io = 1;
9654         else
9655                 phba->fcp_embed_io = 0;
9656
9657         /*
9658          * Check if the SLI port supports MDS Diagnostics
9659          */
9660         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
9661                 phba->mds_diags_support = 1;
9662         else
9663                 phba->mds_diags_support = 0;
9664         return 0;
9665 }
9666
9667 /**
9668  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9669  * @pdev: pointer to PCI device
9670  * @pid: pointer to PCI device identifier
9671  *
9672  * This routine is to be called to attach a device with SLI-3 interface spec
9673  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9674  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9675  * information of the device and driver to see if the driver state that it can
9676  * support this kind of device. If the match is successful, the driver core
9677  * invokes this routine. If this routine determines it can claim the HBA, it
9678  * does all the initialization that it needs to do to handle the HBA properly.
9679  *
9680  * Return code
9681  *      0 - driver can claim the device
9682  *      negative value - driver can not claim the device
9683  **/
9684 static int
9685 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9686 {
9687         struct lpfc_hba   *phba;
9688         struct lpfc_vport *vport = NULL;
9689         struct Scsi_Host  *shost = NULL;
9690         int error;
9691         uint32_t cfg_mode, intr_mode;
9692
9693         /* Allocate memory for HBA structure */
9694         phba = lpfc_hba_alloc(pdev);
9695         if (!phba)
9696                 return -ENOMEM;
9697
9698         /* Perform generic PCI device enabling operation */
9699         error = lpfc_enable_pci_dev(phba);
9700         if (error)
9701                 goto out_free_phba;
9702
9703         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9704         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9705         if (error)
9706                 goto out_disable_pci_dev;
9707
9708         /* Set up SLI-3 specific device PCI memory space */
9709         error = lpfc_sli_pci_mem_setup(phba);
9710         if (error) {
9711                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9712                                 "1402 Failed to set up pci memory space.\n");
9713                 goto out_disable_pci_dev;
9714         }
9715
9716         /* Set up phase-1 common device driver resources */
9717         error = lpfc_setup_driver_resource_phase1(phba);
9718         if (error) {
9719                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9720                                 "1403 Failed to set up driver resource.\n");
9721                 goto out_unset_pci_mem_s3;
9722         }
9723
9724         /* Set up SLI-3 specific device driver resources */
9725         error = lpfc_sli_driver_resource_setup(phba);
9726         if (error) {
9727                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9728                                 "1404 Failed to set up driver resource.\n");
9729                 goto out_unset_pci_mem_s3;
9730         }
9731
9732         /* Initialize and populate the iocb list per host */
9733         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9734         if (error) {
9735                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9736                                 "1405 Failed to initialize iocb list.\n");
9737                 goto out_unset_driver_resource_s3;
9738         }
9739
9740         /* Set up common device driver resources */
9741         error = lpfc_setup_driver_resource_phase2(phba);
9742         if (error) {
9743                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9744                                 "1406 Failed to set up driver resource.\n");
9745                 goto out_free_iocb_list;
9746         }
9747
9748         /* Get the default values for Model Name and Description */
9749         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9750
9751         /* Create SCSI host to the physical port */
9752         error = lpfc_create_shost(phba);
9753         if (error) {
9754                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9755                                 "1407 Failed to create scsi host.\n");
9756                 goto out_unset_driver_resource;
9757         }
9758
9759         /* Configure sysfs attributes */
9760         vport = phba->pport;
9761         error = lpfc_alloc_sysfs_attr(vport);
9762         if (error) {
9763                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9764                                 "1476 Failed to allocate sysfs attr\n");
9765                 goto out_destroy_shost;
9766         }
9767
9768         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9769         /* Now, trying to enable interrupt and bring up the device */
9770         cfg_mode = phba->cfg_use_msi;
9771         while (true) {
9772                 /* Put device to a known state before enabling interrupt */
9773                 lpfc_stop_port(phba);
9774                 /* Configure and enable interrupt */
9775                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9776                 if (intr_mode == LPFC_INTR_ERROR) {
9777                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9778                                         "0431 Failed to enable interrupt.\n");
9779                         error = -ENODEV;
9780                         goto out_free_sysfs_attr;
9781                 }
9782                 /* SLI-3 HBA setup */
9783                 if (lpfc_sli_hba_setup(phba)) {
9784                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9785                                         "1477 Failed to set up hba\n");
9786                         error = -ENODEV;
9787                         goto out_remove_device;
9788                 }
9789
9790                 /* Wait 50ms for the interrupts of previous mailbox commands */
9791                 msleep(50);
9792                 /* Check active interrupts on message signaled interrupts */
9793                 if (intr_mode == 0 ||
9794                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9795                         /* Log the current active interrupt mode */
9796                         phba->intr_mode = intr_mode;
9797                         lpfc_log_intr_mode(phba, intr_mode);
9798                         break;
9799                 } else {
9800                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9801                                         "0447 Configure interrupt mode (%d) "
9802                                         "failed active interrupt test.\n",
9803                                         intr_mode);
9804                         /* Disable the current interrupt mode */
9805                         lpfc_sli_disable_intr(phba);
9806                         /* Try next level of interrupt mode */
9807                         cfg_mode = --intr_mode;
9808                 }
9809         }
9810
9811         /* Perform post initialization setup */
9812         lpfc_post_init_setup(phba);
9813
9814         /* Check if there are static vports to be created. */
9815         lpfc_create_static_vport(phba);
9816
9817         return 0;
9818
9819 out_remove_device:
9820         lpfc_unset_hba(phba);
9821 out_free_sysfs_attr:
9822         lpfc_free_sysfs_attr(vport);
9823 out_destroy_shost:
9824         lpfc_destroy_shost(phba);
9825 out_unset_driver_resource:
9826         lpfc_unset_driver_resource_phase2(phba);
9827 out_free_iocb_list:
9828         lpfc_free_iocb_list(phba);
9829 out_unset_driver_resource_s3:
9830         lpfc_sli_driver_resource_unset(phba);
9831 out_unset_pci_mem_s3:
9832         lpfc_sli_pci_mem_unset(phba);
9833 out_disable_pci_dev:
9834         lpfc_disable_pci_dev(phba);
9835         if (shost)
9836                 scsi_host_put(shost);
9837 out_free_phba:
9838         lpfc_hba_free(phba);
9839         return error;
9840 }
9841
9842 /**
9843  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9844  * @pdev: pointer to PCI device
9845  *
9846  * This routine is to be called to disattach a device with SLI-3 interface
9847  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9848  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9849  * device to be removed from the PCI subsystem properly.
9850  **/
9851 static void
9852 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9853 {
9854         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
9855         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9856         struct lpfc_vport **vports;
9857         struct lpfc_hba   *phba = vport->phba;
9858         int i;
9859
9860         spin_lock_irq(&phba->hbalock);
9861         vport->load_flag |= FC_UNLOADING;
9862         spin_unlock_irq(&phba->hbalock);
9863
9864         lpfc_free_sysfs_attr(vport);
9865
9866         /* Release all the vports against this physical port */
9867         vports = lpfc_create_vport_work_array(phba);
9868         if (vports != NULL)
9869                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9870                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9871                                 continue;
9872                         fc_vport_terminate(vports[i]->fc_vport);
9873                 }
9874         lpfc_destroy_vport_work_array(phba, vports);
9875
9876         /* Remove FC host and then SCSI host with the physical port */
9877         fc_remove_host(shost);
9878         scsi_remove_host(shost);
9879         lpfc_cleanup(vport);
9880
9881         /*
9882          * Bring down the SLI Layer. This step disable all interrupts,
9883          * clears the rings, discards all mailbox commands, and resets
9884          * the HBA.
9885          */
9886
9887         /* HBA interrupt will be disabled after this call */
9888         lpfc_sli_hba_down(phba);
9889         /* Stop kthread signal shall trigger work_done one more time */
9890         kthread_stop(phba->worker_thread);
9891         /* Final cleanup of txcmplq and reset the HBA */
9892         lpfc_sli_brdrestart(phba);
9893
9894         kfree(phba->vpi_bmask);
9895         kfree(phba->vpi_ids);
9896
9897         lpfc_stop_hba_timers(phba);
9898         spin_lock_irq(&phba->hbalock);
9899         list_del_init(&vport->listentry);
9900         spin_unlock_irq(&phba->hbalock);
9901
9902         lpfc_debugfs_terminate(vport);
9903
9904         /* Disable SR-IOV if enabled */
9905         if (phba->cfg_sriov_nr_virtfn)
9906                 pci_disable_sriov(pdev);
9907
9908         /* Disable interrupt */
9909         lpfc_sli_disable_intr(phba);
9910
9911         scsi_host_put(shost);
9912
9913         /*
9914          * Call scsi_free before mem_free since scsi bufs are released to their
9915          * corresponding pools here.
9916          */
9917         lpfc_scsi_free(phba);
9918         lpfc_mem_free_all(phba);
9919
9920         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9921                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9922
9923         /* Free resources associated with SLI2 interface */
9924         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9925                           phba->slim2p.virt, phba->slim2p.phys);
9926
9927         /* unmap adapter SLIM and Control Registers */
9928         iounmap(phba->ctrl_regs_memmap_p);
9929         iounmap(phba->slim_memmap_p);
9930
9931         lpfc_hba_free(phba);
9932
9933         pci_release_mem_regions(pdev);
9934         pci_disable_device(pdev);
9935 }
9936
9937 /**
9938  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9939  * @pdev: pointer to PCI device
9940  * @msg: power management message
9941  *
9942  * This routine is to be called from the kernel's PCI subsystem to support
9943  * system Power Management (PM) to device with SLI-3 interface spec. When
9944  * PM invokes this method, it quiesces the device by stopping the driver's
9945  * worker thread for the device, turning off device's interrupt and DMA,
9946  * and bring the device offline. Note that as the driver implements the
9947  * minimum PM requirements to a power-aware driver's PM support for the
9948  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9949  * to the suspend() method call will be treated as SUSPEND and the driver will
9950  * fully reinitialize its device during resume() method call, the driver will
9951  * set device to PCI_D3hot state in PCI config space instead of setting it
9952  * according to the @msg provided by the PM.
9953  *
9954  * Return code
9955  *      0 - driver suspended the device
9956  *      Error otherwise
9957  **/
9958 static int
9959 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9960 {
9961         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9962         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9963
9964         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9965                         "0473 PCI device Power Management suspend.\n");
9966
9967         /* Bring down the device */
9968         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9969         lpfc_offline(phba);
9970         kthread_stop(phba->worker_thread);
9971
9972         /* Disable interrupt from device */
9973         lpfc_sli_disable_intr(phba);
9974
9975         /* Save device state to PCI config space */
9976         pci_save_state(pdev);
9977         pci_set_power_state(pdev, PCI_D3hot);
9978
9979         return 0;
9980 }
9981
9982 /**
9983  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9984  * @pdev: pointer to PCI device
9985  *
9986  * This routine is to be called from the kernel's PCI subsystem to support
9987  * system Power Management (PM) to device with SLI-3 interface spec. When PM
9988  * invokes this method, it restores the device's PCI config space state and
9989  * fully reinitializes the device and brings it online. Note that as the
9990  * driver implements the minimum PM requirements to a power-aware driver's
9991  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9992  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9993  * driver will fully reinitialize its device during resume() method call,
9994  * the device will be set to PCI_D0 directly in PCI config space before
9995  * restoring the state.
9996  *
9997  * Return code
9998  *      0 - driver suspended the device
9999  *      Error otherwise
10000  **/
10001 static int
10002 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
10003 {
10004         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10005         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10006         uint32_t intr_mode;
10007         int error;
10008
10009         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10010                         "0452 PCI device Power Management resume.\n");
10011
10012         /* Restore device state from PCI config space */
10013         pci_set_power_state(pdev, PCI_D0);
10014         pci_restore_state(pdev);
10015
10016         /*
10017          * As the new kernel behavior of pci_restore_state() API call clears
10018          * device saved_state flag, need to save the restored state again.
10019          */
10020         pci_save_state(pdev);
10021
10022         if (pdev->is_busmaster)
10023                 pci_set_master(pdev);
10024
10025         /* Startup the kernel thread for this host adapter. */
10026         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10027                                         "lpfc_worker_%d", phba->brd_no);
10028         if (IS_ERR(phba->worker_thread)) {
10029                 error = PTR_ERR(phba->worker_thread);
10030                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10031                                 "0434 PM resume failed to start worker "
10032                                 "thread: error=x%x.\n", error);
10033                 return error;
10034         }
10035
10036         /* Configure and enable interrupt */
10037         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10038         if (intr_mode == LPFC_INTR_ERROR) {
10039                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10040                                 "0430 PM resume Failed to enable interrupt\n");
10041                 return -EIO;
10042         } else
10043                 phba->intr_mode = intr_mode;
10044
10045         /* Restart HBA and bring it online */
10046         lpfc_sli_brdrestart(phba);
10047         lpfc_online(phba);
10048
10049         /* Log the current active interrupt mode */
10050         lpfc_log_intr_mode(phba, phba->intr_mode);
10051
10052         return 0;
10053 }
10054
10055 /**
10056  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
10057  * @phba: pointer to lpfc hba data structure.
10058  *
10059  * This routine is called to prepare the SLI3 device for PCI slot recover. It
10060  * aborts all the outstanding SCSI I/Os to the pci device.
10061  **/
10062 static void
10063 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
10064 {
10065         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10066                         "2723 PCI channel I/O abort preparing for recovery\n");
10067
10068         /*
10069          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10070          * and let the SCSI mid-layer to retry them to recover.
10071          */
10072         lpfc_sli_abort_fcp_rings(phba);
10073 }
10074
10075 /**
10076  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
10077  * @phba: pointer to lpfc hba data structure.
10078  *
10079  * This routine is called to prepare the SLI3 device for PCI slot reset. It
10080  * disables the device interrupt and pci device, and aborts the internal FCP
10081  * pending I/Os.
10082  **/
10083 static void
10084 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
10085 {
10086         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10087                         "2710 PCI channel disable preparing for reset\n");
10088
10089         /* Block any management I/Os to the device */
10090         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
10091
10092         /* Block all SCSI devices' I/Os on the host */
10093         lpfc_scsi_dev_block(phba);
10094
10095         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10096         lpfc_sli_flush_fcp_rings(phba);
10097
10098         /* stop all timers */
10099         lpfc_stop_hba_timers(phba);
10100
10101         /* Disable interrupt and pci device */
10102         lpfc_sli_disable_intr(phba);
10103         pci_disable_device(phba->pcidev);
10104 }
10105
10106 /**
10107  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
10108  * @phba: pointer to lpfc hba data structure.
10109  *
10110  * This routine is called to prepare the SLI3 device for PCI slot permanently
10111  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10112  * pending I/Os.
10113  **/
10114 static void
10115 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10116 {
10117         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10118                         "2711 PCI channel permanent disable for failure\n");
10119         /* Block all SCSI devices' I/Os on the host */
10120         lpfc_scsi_dev_block(phba);
10121
10122         /* stop all timers */
10123         lpfc_stop_hba_timers(phba);
10124
10125         /* Clean up all driver's outstanding SCSI I/Os */
10126         lpfc_sli_flush_fcp_rings(phba);
10127 }
10128
10129 /**
10130  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
10131  * @pdev: pointer to PCI device.
10132  * @state: the current PCI connection state.
10133  *
10134  * This routine is called from the PCI subsystem for I/O error handling to
10135  * device with SLI-3 interface spec. This function is called by the PCI
10136  * subsystem after a PCI bus error affecting this device has been detected.
10137  * When this function is invoked, it will need to stop all the I/Os and
10138  * interrupt(s) to the device. Once that is done, it will return
10139  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
10140  * as desired.
10141  *
10142  * Return codes
10143  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
10144  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10145  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10146  **/
10147 static pci_ers_result_t
10148 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
10149 {
10150         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10151         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10152
10153         switch (state) {
10154         case pci_channel_io_normal:
10155                 /* Non-fatal error, prepare for recovery */
10156                 lpfc_sli_prep_dev_for_recover(phba);
10157                 return PCI_ERS_RESULT_CAN_RECOVER;
10158         case pci_channel_io_frozen:
10159                 /* Fatal error, prepare for slot reset */
10160                 lpfc_sli_prep_dev_for_reset(phba);
10161                 return PCI_ERS_RESULT_NEED_RESET;
10162         case pci_channel_io_perm_failure:
10163                 /* Permanent failure, prepare for device down */
10164                 lpfc_sli_prep_dev_for_perm_failure(phba);
10165                 return PCI_ERS_RESULT_DISCONNECT;
10166         default:
10167                 /* Unknown state, prepare and request slot reset */
10168                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10169                                 "0472 Unknown PCI error state: x%x\n", state);
10170                 lpfc_sli_prep_dev_for_reset(phba);
10171                 return PCI_ERS_RESULT_NEED_RESET;
10172         }
10173 }
10174
10175 /**
10176  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10177  * @pdev: pointer to PCI device.
10178  *
10179  * This routine is called from the PCI subsystem for error handling to
10180  * device with SLI-3 interface spec. This is called after PCI bus has been
10181  * reset to restart the PCI card from scratch, as if from a cold-boot.
10182  * During the PCI subsystem error recovery, after driver returns
10183  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10184  * recovery and then call this routine before calling the .resume method
10185  * to recover the device. This function will initialize the HBA device,
10186  * enable the interrupt, but it will just put the HBA to offline state
10187  * without passing any I/O traffic.
10188  *
10189  * Return codes
10190  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10191  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10192  */
10193 static pci_ers_result_t
10194 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10195 {
10196         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10197         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10198         struct lpfc_sli *psli = &phba->sli;
10199         uint32_t intr_mode;
10200
10201         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10202         if (pci_enable_device_mem(pdev)) {
10203                 printk(KERN_ERR "lpfc: Cannot re-enable "
10204                         "PCI device after reset.\n");
10205                 return PCI_ERS_RESULT_DISCONNECT;
10206         }
10207
10208         pci_restore_state(pdev);
10209
10210         /*
10211          * As the new kernel behavior of pci_restore_state() API call clears
10212          * device saved_state flag, need to save the restored state again.
10213          */
10214         pci_save_state(pdev);
10215
10216         if (pdev->is_busmaster)
10217                 pci_set_master(pdev);
10218
10219         spin_lock_irq(&phba->hbalock);
10220         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10221         spin_unlock_irq(&phba->hbalock);
10222
10223         /* Configure and enable interrupt */
10224         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10225         if (intr_mode == LPFC_INTR_ERROR) {
10226                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10227                                 "0427 Cannot re-enable interrupt after "
10228                                 "slot reset.\n");
10229                 return PCI_ERS_RESULT_DISCONNECT;
10230         } else
10231                 phba->intr_mode = intr_mode;
10232
10233         /* Take device offline, it will perform cleanup */
10234         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10235         lpfc_offline(phba);
10236         lpfc_sli_brdrestart(phba);
10237
10238         /* Log the current active interrupt mode */
10239         lpfc_log_intr_mode(phba, phba->intr_mode);
10240
10241         return PCI_ERS_RESULT_RECOVERED;
10242 }
10243
10244 /**
10245  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10246  * @pdev: pointer to PCI device
10247  *
10248  * This routine is called from the PCI subsystem for error handling to device
10249  * with SLI-3 interface spec. It is called when kernel error recovery tells
10250  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10251  * error recovery. After this call, traffic can start to flow from this device
10252  * again.
10253  */
10254 static void
10255 lpfc_io_resume_s3(struct pci_dev *pdev)
10256 {
10257         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10258         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10259
10260         /* Bring device online, it will be no-op for non-fatal error resume */
10261         lpfc_online(phba);
10262
10263         /* Clean up Advanced Error Reporting (AER) if needed */
10264         if (phba->hba_flag & HBA_AER_ENABLED)
10265                 pci_cleanup_aer_uncorrect_error_status(pdev);
10266 }
10267
10268 /**
10269  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10270  * @phba: pointer to lpfc hba data structure.
10271  *
10272  * returns the number of ELS/CT IOCBs to reserve
10273  **/
10274 int
10275 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10276 {
10277         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10278
10279         if (phba->sli_rev == LPFC_SLI_REV4) {
10280                 if (max_xri <= 100)
10281                         return 10;
10282                 else if (max_xri <= 256)
10283                         return 25;
10284                 else if (max_xri <= 512)
10285                         return 50;
10286                 else if (max_xri <= 1024)
10287                         return 100;
10288                 else if (max_xri <= 1536)
10289                         return 150;
10290                 else if (max_xri <= 2048)
10291                         return 200;
10292                 else
10293                         return 250;
10294         } else
10295                 return 0;
10296 }
10297
10298 /**
10299  * lpfc_write_firmware - attempt to write a firmware image to the port
10300  * @fw: pointer to firmware image returned from request_firmware.
10301  * @phba: pointer to lpfc hba data structure.
10302  *
10303  **/
10304 static void
10305 lpfc_write_firmware(const struct firmware *fw, void *context)
10306 {
10307         struct lpfc_hba *phba = (struct lpfc_hba *)context;
10308         char fwrev[FW_REV_STR_SIZE];
10309         struct lpfc_grp_hdr *image;
10310         struct list_head dma_buffer_list;
10311         int i, rc = 0;
10312         struct lpfc_dmabuf *dmabuf, *next;
10313         uint32_t offset = 0, temp_offset = 0;
10314         uint32_t magic_number, ftype, fid, fsize;
10315
10316         /* It can be null in no-wait mode, sanity check */
10317         if (!fw) {
10318                 rc = -ENXIO;
10319                 goto out;
10320         }
10321         image = (struct lpfc_grp_hdr *)fw->data;
10322
10323         magic_number = be32_to_cpu(image->magic_number);
10324         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
10325         fid = bf_get_be32(lpfc_grp_hdr_id, image),
10326         fsize = be32_to_cpu(image->size);
10327
10328         INIT_LIST_HEAD(&dma_buffer_list);
10329         if ((magic_number != LPFC_GROUP_OJECT_MAGIC_G5 &&
10330              magic_number != LPFC_GROUP_OJECT_MAGIC_G6) ||
10331             ftype != LPFC_FILE_TYPE_GROUP || fsize != fw->size) {
10332                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10333                                 "3022 Invalid FW image found. "
10334                                 "Magic:%x Type:%x ID:%x Size %d %zd\n",
10335                                 magic_number, ftype, fid, fsize, fw->size);
10336                 rc = -EINVAL;
10337                 goto release_out;
10338         }
10339         lpfc_decode_firmware_rev(phba, fwrev, 1);
10340         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10341                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10342                                 "3023 Updating Firmware, Current Version:%s "
10343                                 "New Version:%s\n",
10344                                 fwrev, image->revision);
10345                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10346                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10347                                          GFP_KERNEL);
10348                         if (!dmabuf) {
10349                                 rc = -ENOMEM;
10350                                 goto release_out;
10351                         }
10352                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10353                                                           SLI4_PAGE_SIZE,
10354                                                           &dmabuf->phys,
10355                                                           GFP_KERNEL);
10356                         if (!dmabuf->virt) {
10357                                 kfree(dmabuf);
10358                                 rc = -ENOMEM;
10359                                 goto release_out;
10360                         }
10361                         list_add_tail(&dmabuf->list, &dma_buffer_list);
10362                 }
10363                 while (offset < fw->size) {
10364                         temp_offset = offset;
10365                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10366                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10367                                         memcpy(dmabuf->virt,
10368                                                fw->data + temp_offset,
10369                                                fw->size - temp_offset);
10370                                         temp_offset = fw->size;
10371                                         break;
10372                                 }
10373                                 memcpy(dmabuf->virt, fw->data + temp_offset,
10374                                        SLI4_PAGE_SIZE);
10375                                 temp_offset += SLI4_PAGE_SIZE;
10376                         }
10377                         rc = lpfc_wr_object(phba, &dma_buffer_list,
10378                                     (fw->size - offset), &offset);
10379                         if (rc)
10380                                 goto release_out;
10381                 }
10382                 rc = offset;
10383         }
10384
10385 release_out:
10386         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10387                 list_del(&dmabuf->list);
10388                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10389                                   dmabuf->virt, dmabuf->phys);
10390                 kfree(dmabuf);
10391         }
10392         release_firmware(fw);
10393 out:
10394         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10395                         "3024 Firmware update done: %d.\n", rc);
10396         return;
10397 }
10398
10399 /**
10400  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10401  * @phba: pointer to lpfc hba data structure.
10402  *
10403  * This routine is called to perform Linux generic firmware upgrade on device
10404  * that supports such feature.
10405  **/
10406 int
10407 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10408 {
10409         uint8_t file_name[ELX_MODEL_NAME_SIZE];
10410         int ret;
10411         const struct firmware *fw;
10412
10413         /* Only supported on SLI4 interface type 2 for now */
10414         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10415             LPFC_SLI_INTF_IF_TYPE_2)
10416                 return -EPERM;
10417
10418         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10419
10420         if (fw_upgrade == INT_FW_UPGRADE) {
10421                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10422                                         file_name, &phba->pcidev->dev,
10423                                         GFP_KERNEL, (void *)phba,
10424                                         lpfc_write_firmware);
10425         } else if (fw_upgrade == RUN_FW_UPGRADE) {
10426                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10427                 if (!ret)
10428                         lpfc_write_firmware(fw, (void *)phba);
10429         } else {
10430                 ret = -EINVAL;
10431         }
10432
10433         return ret;
10434 }
10435
10436 /**
10437  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10438  * @pdev: pointer to PCI device
10439  * @pid: pointer to PCI device identifier
10440  *
10441  * This routine is called from the kernel's PCI subsystem to device with
10442  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10443  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10444  * information of the device and driver to see if the driver state that it
10445  * can support this kind of device. If the match is successful, the driver
10446  * core invokes this routine. If this routine determines it can claim the HBA,
10447  * it does all the initialization that it needs to do to handle the HBA
10448  * properly.
10449  *
10450  * Return code
10451  *      0 - driver can claim the device
10452  *      negative value - driver can not claim the device
10453  **/
10454 static int
10455 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10456 {
10457         struct lpfc_hba   *phba;
10458         struct lpfc_vport *vport = NULL;
10459         struct Scsi_Host  *shost = NULL;
10460         int error;
10461         uint32_t cfg_mode, intr_mode;
10462         int adjusted_fcp_io_channel;
10463
10464         /* Allocate memory for HBA structure */
10465         phba = lpfc_hba_alloc(pdev);
10466         if (!phba)
10467                 return -ENOMEM;
10468
10469         /* Perform generic PCI device enabling operation */
10470         error = lpfc_enable_pci_dev(phba);
10471         if (error)
10472                 goto out_free_phba;
10473
10474         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10475         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10476         if (error)
10477                 goto out_disable_pci_dev;
10478
10479         /* Set up SLI-4 specific device PCI memory space */
10480         error = lpfc_sli4_pci_mem_setup(phba);
10481         if (error) {
10482                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10483                                 "1410 Failed to set up pci memory space.\n");
10484                 goto out_disable_pci_dev;
10485         }
10486
10487         /* Set up phase-1 common device driver resources */
10488         error = lpfc_setup_driver_resource_phase1(phba);
10489         if (error) {
10490                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10491                                 "1411 Failed to set up driver resource.\n");
10492                 goto out_unset_pci_mem_s4;
10493         }
10494
10495         /* Set up SLI-4 Specific device driver resources */
10496         error = lpfc_sli4_driver_resource_setup(phba);
10497         if (error) {
10498                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10499                                 "1412 Failed to set up driver resource.\n");
10500                 goto out_unset_pci_mem_s4;
10501         }
10502
10503         /* Initialize and populate the iocb list per host */
10504
10505         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10506                         "2821 initialize iocb list %d.\n",
10507                         phba->cfg_iocb_cnt*1024);
10508         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10509
10510         if (error) {
10511                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10512                                 "1413 Failed to initialize iocb list.\n");
10513                 goto out_unset_driver_resource_s4;
10514         }
10515
10516         INIT_LIST_HEAD(&phba->active_rrq_list);
10517         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10518
10519         /* Set up common device driver resources */
10520         error = lpfc_setup_driver_resource_phase2(phba);
10521         if (error) {
10522                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10523                                 "1414 Failed to set up driver resource.\n");
10524                 goto out_free_iocb_list;
10525         }
10526
10527         /* Get the default values for Model Name and Description */
10528         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10529
10530         /* Create SCSI host to the physical port */
10531         error = lpfc_create_shost(phba);
10532         if (error) {
10533                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10534                                 "1415 Failed to create scsi host.\n");
10535                 goto out_unset_driver_resource;
10536         }
10537
10538         /* Configure sysfs attributes */
10539         vport = phba->pport;
10540         error = lpfc_alloc_sysfs_attr(vport);
10541         if (error) {
10542                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10543                                 "1416 Failed to allocate sysfs attr\n");
10544                 goto out_destroy_shost;
10545         }
10546
10547         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10548         /* Now, trying to enable interrupt and bring up the device */
10549         cfg_mode = phba->cfg_use_msi;
10550
10551         /* Put device to a known state before enabling interrupt */
10552         lpfc_stop_port(phba);
10553         /* Configure and enable interrupt */
10554         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10555         if (intr_mode == LPFC_INTR_ERROR) {
10556                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10557                                 "0426 Failed to enable interrupt.\n");
10558                 error = -ENODEV;
10559                 goto out_free_sysfs_attr;
10560         }
10561         /* Default to single EQ for non-MSI-X */
10562         if (phba->intr_type != MSIX)
10563                 adjusted_fcp_io_channel = 1;
10564         else
10565                 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10566         phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10567         /* Set up SLI-4 HBA */
10568         if (lpfc_sli4_hba_setup(phba)) {
10569                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10570                                 "1421 Failed to set up hba\n");
10571                 error = -ENODEV;
10572                 goto out_disable_intr;
10573         }
10574
10575         /* Log the current active interrupt mode */
10576         phba->intr_mode = intr_mode;
10577         lpfc_log_intr_mode(phba, intr_mode);
10578
10579         /* Perform post initialization setup */
10580         lpfc_post_init_setup(phba);
10581
10582         /* check for firmware upgrade or downgrade */
10583         if (phba->cfg_request_firmware_upgrade)
10584                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10585
10586         /* Check if there are static vports to be created. */
10587         lpfc_create_static_vport(phba);
10588         return 0;
10589
10590 out_disable_intr:
10591         lpfc_sli4_disable_intr(phba);
10592 out_free_sysfs_attr:
10593         lpfc_free_sysfs_attr(vport);
10594 out_destroy_shost:
10595         lpfc_destroy_shost(phba);
10596 out_unset_driver_resource:
10597         lpfc_unset_driver_resource_phase2(phba);
10598 out_free_iocb_list:
10599         lpfc_free_iocb_list(phba);
10600 out_unset_driver_resource_s4:
10601         lpfc_sli4_driver_resource_unset(phba);
10602 out_unset_pci_mem_s4:
10603         lpfc_sli4_pci_mem_unset(phba);
10604 out_disable_pci_dev:
10605         lpfc_disable_pci_dev(phba);
10606         if (shost)
10607                 scsi_host_put(shost);
10608 out_free_phba:
10609         lpfc_hba_free(phba);
10610         return error;
10611 }
10612
10613 /**
10614  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10615  * @pdev: pointer to PCI device
10616  *
10617  * This routine is called from the kernel's PCI subsystem to device with
10618  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10619  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10620  * device to be removed from the PCI subsystem properly.
10621  **/
10622 static void
10623 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10624 {
10625         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10626         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10627         struct lpfc_vport **vports;
10628         struct lpfc_hba *phba = vport->phba;
10629         int i;
10630
10631         /* Mark the device unloading flag */
10632         spin_lock_irq(&phba->hbalock);
10633         vport->load_flag |= FC_UNLOADING;
10634         spin_unlock_irq(&phba->hbalock);
10635
10636         /* Free the HBA sysfs attributes */
10637         lpfc_free_sysfs_attr(vport);
10638
10639         /* Release all the vports against this physical port */
10640         vports = lpfc_create_vport_work_array(phba);
10641         if (vports != NULL)
10642                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10643                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10644                                 continue;
10645                         fc_vport_terminate(vports[i]->fc_vport);
10646                 }
10647         lpfc_destroy_vport_work_array(phba, vports);
10648
10649         /* Remove FC host and then SCSI host with the physical port */
10650         fc_remove_host(shost);
10651         scsi_remove_host(shost);
10652
10653         /* Perform cleanup on the physical port */
10654         lpfc_cleanup(vport);
10655
10656         /*
10657          * Bring down the SLI Layer. This step disables all interrupts,
10658          * clears the rings, discards all mailbox commands, and resets
10659          * the HBA FCoE function.
10660          */
10661         lpfc_debugfs_terminate(vport);
10662         lpfc_sli4_hba_unset(phba);
10663
10664         spin_lock_irq(&phba->hbalock);
10665         list_del_init(&vport->listentry);
10666         spin_unlock_irq(&phba->hbalock);
10667
10668         /* Perform scsi free before driver resource_unset since scsi
10669          * buffers are released to their corresponding pools here.
10670          */
10671         lpfc_scsi_free(phba);
10672
10673         lpfc_sli4_driver_resource_unset(phba);
10674
10675         /* Unmap adapter Control and Doorbell registers */
10676         lpfc_sli4_pci_mem_unset(phba);
10677
10678         /* Release PCI resources and disable device's PCI function */
10679         scsi_host_put(shost);
10680         lpfc_disable_pci_dev(phba);
10681
10682         /* Finally, free the driver's device data structure */
10683         lpfc_hba_free(phba);
10684
10685         return;
10686 }
10687
10688 /**
10689  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10690  * @pdev: pointer to PCI device
10691  * @msg: power management message
10692  *
10693  * This routine is called from the kernel's PCI subsystem to support system
10694  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10695  * this method, it quiesces the device by stopping the driver's worker
10696  * thread for the device, turning off device's interrupt and DMA, and bring
10697  * the device offline. Note that as the driver implements the minimum PM
10698  * requirements to a power-aware driver's PM support for suspend/resume -- all
10699  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10700  * method call will be treated as SUSPEND and the driver will fully
10701  * reinitialize its device during resume() method call, the driver will set
10702  * device to PCI_D3hot state in PCI config space instead of setting it
10703  * according to the @msg provided by the PM.
10704  *
10705  * Return code
10706  *      0 - driver suspended the device
10707  *      Error otherwise
10708  **/
10709 static int
10710 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10711 {
10712         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10713         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10714
10715         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10716                         "2843 PCI device Power Management suspend.\n");
10717
10718         /* Bring down the device */
10719         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10720         lpfc_offline(phba);
10721         kthread_stop(phba->worker_thread);
10722
10723         /* Disable interrupt from device */
10724         lpfc_sli4_disable_intr(phba);
10725         lpfc_sli4_queue_destroy(phba);
10726
10727         /* Save device state to PCI config space */
10728         pci_save_state(pdev);
10729         pci_set_power_state(pdev, PCI_D3hot);
10730
10731         return 0;
10732 }
10733
10734 /**
10735  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10736  * @pdev: pointer to PCI device
10737  *
10738  * This routine is called from the kernel's PCI subsystem to support system
10739  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10740  * this method, it restores the device's PCI config space state and fully
10741  * reinitializes the device and brings it online. Note that as the driver
10742  * implements the minimum PM requirements to a power-aware driver's PM for
10743  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10744  * to the suspend() method call will be treated as SUSPEND and the driver
10745  * will fully reinitialize its device during resume() method call, the device
10746  * will be set to PCI_D0 directly in PCI config space before restoring the
10747  * state.
10748  *
10749  * Return code
10750  *      0 - driver suspended the device
10751  *      Error otherwise
10752  **/
10753 static int
10754 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10755 {
10756         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10757         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10758         uint32_t intr_mode;
10759         int error;
10760
10761         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10762                         "0292 PCI device Power Management resume.\n");
10763
10764         /* Restore device state from PCI config space */
10765         pci_set_power_state(pdev, PCI_D0);
10766         pci_restore_state(pdev);
10767
10768         /*
10769          * As the new kernel behavior of pci_restore_state() API call clears
10770          * device saved_state flag, need to save the restored state again.
10771          */
10772         pci_save_state(pdev);
10773
10774         if (pdev->is_busmaster)
10775                 pci_set_master(pdev);
10776
10777          /* Startup the kernel thread for this host adapter. */
10778         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10779                                         "lpfc_worker_%d", phba->brd_no);
10780         if (IS_ERR(phba->worker_thread)) {
10781                 error = PTR_ERR(phba->worker_thread);
10782                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10783                                 "0293 PM resume failed to start worker "
10784                                 "thread: error=x%x.\n", error);
10785                 return error;
10786         }
10787
10788         /* Configure and enable interrupt */
10789         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10790         if (intr_mode == LPFC_INTR_ERROR) {
10791                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10792                                 "0294 PM resume Failed to enable interrupt\n");
10793                 return -EIO;
10794         } else
10795                 phba->intr_mode = intr_mode;
10796
10797         /* Restart HBA and bring it online */
10798         lpfc_sli_brdrestart(phba);
10799         lpfc_online(phba);
10800
10801         /* Log the current active interrupt mode */
10802         lpfc_log_intr_mode(phba, phba->intr_mode);
10803
10804         return 0;
10805 }
10806
10807 /**
10808  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10809  * @phba: pointer to lpfc hba data structure.
10810  *
10811  * This routine is called to prepare the SLI4 device for PCI slot recover. It
10812  * aborts all the outstanding SCSI I/Os to the pci device.
10813  **/
10814 static void
10815 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10816 {
10817         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10818                         "2828 PCI channel I/O abort preparing for recovery\n");
10819         /*
10820          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10821          * and let the SCSI mid-layer to retry them to recover.
10822          */
10823         lpfc_sli_abort_fcp_rings(phba);
10824 }
10825
10826 /**
10827  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10828  * @phba: pointer to lpfc hba data structure.
10829  *
10830  * This routine is called to prepare the SLI4 device for PCI slot reset. It
10831  * disables the device interrupt and pci device, and aborts the internal FCP
10832  * pending I/Os.
10833  **/
10834 static void
10835 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10836 {
10837         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10838                         "2826 PCI channel disable preparing for reset\n");
10839
10840         /* Block any management I/Os to the device */
10841         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10842
10843         /* Block all SCSI devices' I/Os on the host */
10844         lpfc_scsi_dev_block(phba);
10845
10846         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10847         lpfc_sli_flush_fcp_rings(phba);
10848
10849         /* stop all timers */
10850         lpfc_stop_hba_timers(phba);
10851
10852         /* Disable interrupt and pci device */
10853         lpfc_sli4_disable_intr(phba);
10854         lpfc_sli4_queue_destroy(phba);
10855         pci_disable_device(phba->pcidev);
10856 }
10857
10858 /**
10859  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10860  * @phba: pointer to lpfc hba data structure.
10861  *
10862  * This routine is called to prepare the SLI4 device for PCI slot permanently
10863  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10864  * pending I/Os.
10865  **/
10866 static void
10867 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10868 {
10869         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10870                         "2827 PCI channel permanent disable for failure\n");
10871
10872         /* Block all SCSI devices' I/Os on the host */
10873         lpfc_scsi_dev_block(phba);
10874
10875         /* stop all timers */
10876         lpfc_stop_hba_timers(phba);
10877
10878         /* Clean up all driver's outstanding SCSI I/Os */
10879         lpfc_sli_flush_fcp_rings(phba);
10880 }
10881
10882 /**
10883  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10884  * @pdev: pointer to PCI device.
10885  * @state: the current PCI connection state.
10886  *
10887  * This routine is called from the PCI subsystem for error handling to device
10888  * with SLI-4 interface spec. This function is called by the PCI subsystem
10889  * after a PCI bus error affecting this device has been detected. When this
10890  * function is invoked, it will need to stop all the I/Os and interrupt(s)
10891  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10892  * for the PCI subsystem to perform proper recovery as desired.
10893  *
10894  * Return codes
10895  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10896  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10897  **/
10898 static pci_ers_result_t
10899 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10900 {
10901         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10902         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10903
10904         switch (state) {
10905         case pci_channel_io_normal:
10906                 /* Non-fatal error, prepare for recovery */
10907                 lpfc_sli4_prep_dev_for_recover(phba);
10908                 return PCI_ERS_RESULT_CAN_RECOVER;
10909         case pci_channel_io_frozen:
10910                 /* Fatal error, prepare for slot reset */
10911                 lpfc_sli4_prep_dev_for_reset(phba);
10912                 return PCI_ERS_RESULT_NEED_RESET;
10913         case pci_channel_io_perm_failure:
10914                 /* Permanent failure, prepare for device down */
10915                 lpfc_sli4_prep_dev_for_perm_failure(phba);
10916                 return PCI_ERS_RESULT_DISCONNECT;
10917         default:
10918                 /* Unknown state, prepare and request slot reset */
10919                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10920                                 "2825 Unknown PCI error state: x%x\n", state);
10921                 lpfc_sli4_prep_dev_for_reset(phba);
10922                 return PCI_ERS_RESULT_NEED_RESET;
10923         }
10924 }
10925
10926 /**
10927  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10928  * @pdev: pointer to PCI device.
10929  *
10930  * This routine is called from the PCI subsystem for error handling to device
10931  * with SLI-4 interface spec. It is called after PCI bus has been reset to
10932  * restart the PCI card from scratch, as if from a cold-boot. During the
10933  * PCI subsystem error recovery, after the driver returns
10934  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10935  * recovery and then call this routine before calling the .resume method to
10936  * recover the device. This function will initialize the HBA device, enable
10937  * the interrupt, but it will just put the HBA to offline state without
10938  * passing any I/O traffic.
10939  *
10940  * Return codes
10941  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10942  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10943  */
10944 static pci_ers_result_t
10945 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10946 {
10947         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10948         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10949         struct lpfc_sli *psli = &phba->sli;
10950         uint32_t intr_mode;
10951
10952         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10953         if (pci_enable_device_mem(pdev)) {
10954                 printk(KERN_ERR "lpfc: Cannot re-enable "
10955                         "PCI device after reset.\n");
10956                 return PCI_ERS_RESULT_DISCONNECT;
10957         }
10958
10959         pci_restore_state(pdev);
10960
10961         /*
10962          * As the new kernel behavior of pci_restore_state() API call clears
10963          * device saved_state flag, need to save the restored state again.
10964          */
10965         pci_save_state(pdev);
10966
10967         if (pdev->is_busmaster)
10968                 pci_set_master(pdev);
10969
10970         spin_lock_irq(&phba->hbalock);
10971         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10972         spin_unlock_irq(&phba->hbalock);
10973
10974         /* Configure and enable interrupt */
10975         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10976         if (intr_mode == LPFC_INTR_ERROR) {
10977                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10978                                 "2824 Cannot re-enable interrupt after "
10979                                 "slot reset.\n");
10980                 return PCI_ERS_RESULT_DISCONNECT;
10981         } else
10982                 phba->intr_mode = intr_mode;
10983
10984         /* Log the current active interrupt mode */
10985         lpfc_log_intr_mode(phba, phba->intr_mode);
10986
10987         return PCI_ERS_RESULT_RECOVERED;
10988 }
10989
10990 /**
10991  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10992  * @pdev: pointer to PCI device
10993  *
10994  * This routine is called from the PCI subsystem for error handling to device
10995  * with SLI-4 interface spec. It is called when kernel error recovery tells
10996  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10997  * error recovery. After this call, traffic can start to flow from this device
10998  * again.
10999  **/
11000 static void
11001 lpfc_io_resume_s4(struct pci_dev *pdev)
11002 {
11003         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11004         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11005
11006         /*
11007          * In case of slot reset, as function reset is performed through
11008          * mailbox command which needs DMA to be enabled, this operation
11009          * has to be moved to the io resume phase. Taking device offline
11010          * will perform the necessary cleanup.
11011          */
11012         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
11013                 /* Perform device reset */
11014                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
11015                 lpfc_offline(phba);
11016                 lpfc_sli_brdrestart(phba);
11017                 /* Bring the device back online */
11018                 lpfc_online(phba);
11019         }
11020
11021         /* Clean up Advanced Error Reporting (AER) if needed */
11022         if (phba->hba_flag & HBA_AER_ENABLED)
11023                 pci_cleanup_aer_uncorrect_error_status(pdev);
11024 }
11025
11026 /**
11027  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
11028  * @pdev: pointer to PCI device
11029  * @pid: pointer to PCI device identifier
11030  *
11031  * This routine is to be registered to the kernel's PCI subsystem. When an
11032  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
11033  * at PCI device-specific information of the device and driver to see if the
11034  * driver state that it can support this kind of device. If the match is
11035  * successful, the driver core invokes this routine. This routine dispatches
11036  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
11037  * do all the initialization that it needs to do to handle the HBA device
11038  * properly.
11039  *
11040  * Return code
11041  *      0 - driver can claim the device
11042  *      negative value - driver can not claim the device
11043  **/
11044 static int
11045 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
11046 {
11047         int rc;
11048         struct lpfc_sli_intf intf;
11049
11050         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
11051                 return -ENODEV;
11052
11053         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
11054             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
11055                 rc = lpfc_pci_probe_one_s4(pdev, pid);
11056         else
11057                 rc = lpfc_pci_probe_one_s3(pdev, pid);
11058
11059         return rc;
11060 }
11061
11062 /**
11063  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
11064  * @pdev: pointer to PCI device
11065  *
11066  * This routine is to be registered to the kernel's PCI subsystem. When an
11067  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
11068  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
11069  * remove routine, which will perform all the necessary cleanup for the
11070  * device to be removed from the PCI subsystem properly.
11071  **/
11072 static void
11073 lpfc_pci_remove_one(struct pci_dev *pdev)
11074 {
11075         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11076         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11077
11078         switch (phba->pci_dev_grp) {
11079         case LPFC_PCI_DEV_LP:
11080                 lpfc_pci_remove_one_s3(pdev);
11081                 break;
11082         case LPFC_PCI_DEV_OC:
11083                 lpfc_pci_remove_one_s4(pdev);
11084                 break;
11085         default:
11086                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11087                                 "1424 Invalid PCI device group: 0x%x\n",
11088                                 phba->pci_dev_grp);
11089                 break;
11090         }
11091         return;
11092 }
11093
11094 /**
11095  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
11096  * @pdev: pointer to PCI device
11097  * @msg: power management message
11098  *
11099  * This routine is to be registered to the kernel's PCI subsystem to support
11100  * system Power Management (PM). When PM invokes this method, it dispatches
11101  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
11102  * suspend the device.
11103  *
11104  * Return code
11105  *      0 - driver suspended the device
11106  *      Error otherwise
11107  **/
11108 static int
11109 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
11110 {
11111         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11112         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11113         int rc = -ENODEV;
11114
11115         switch (phba->pci_dev_grp) {
11116         case LPFC_PCI_DEV_LP:
11117                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
11118                 break;
11119         case LPFC_PCI_DEV_OC:
11120                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
11121                 break;
11122         default:
11123                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11124                                 "1425 Invalid PCI device group: 0x%x\n",
11125                                 phba->pci_dev_grp);
11126                 break;
11127         }
11128         return rc;
11129 }
11130
11131 /**
11132  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
11133  * @pdev: pointer to PCI device
11134  *
11135  * This routine is to be registered to the kernel's PCI subsystem to support
11136  * system Power Management (PM). When PM invokes this method, it dispatches
11137  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
11138  * resume the device.
11139  *
11140  * Return code
11141  *      0 - driver suspended the device
11142  *      Error otherwise
11143  **/
11144 static int
11145 lpfc_pci_resume_one(struct pci_dev *pdev)
11146 {
11147         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11148         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11149         int rc = -ENODEV;
11150
11151         switch (phba->pci_dev_grp) {
11152         case LPFC_PCI_DEV_LP:
11153                 rc = lpfc_pci_resume_one_s3(pdev);
11154                 break;
11155         case LPFC_PCI_DEV_OC:
11156                 rc = lpfc_pci_resume_one_s4(pdev);
11157                 break;
11158         default:
11159                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11160                                 "1426 Invalid PCI device group: 0x%x\n",
11161                                 phba->pci_dev_grp);
11162                 break;
11163         }
11164         return rc;
11165 }
11166
11167 /**
11168  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11169  * @pdev: pointer to PCI device.
11170  * @state: the current PCI connection state.
11171  *
11172  * This routine is registered to the PCI subsystem for error handling. This
11173  * function is called by the PCI subsystem after a PCI bus error affecting
11174  * this device has been detected. When this routine is invoked, it dispatches
11175  * the action to the proper SLI-3 or SLI-4 device error detected handling
11176  * routine, which will perform the proper error detected operation.
11177  *
11178  * Return codes
11179  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11180  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11181  **/
11182 static pci_ers_result_t
11183 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11184 {
11185         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11186         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11187         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11188
11189         switch (phba->pci_dev_grp) {
11190         case LPFC_PCI_DEV_LP:
11191                 rc = lpfc_io_error_detected_s3(pdev, state);
11192                 break;
11193         case LPFC_PCI_DEV_OC:
11194                 rc = lpfc_io_error_detected_s4(pdev, state);
11195                 break;
11196         default:
11197                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11198                                 "1427 Invalid PCI device group: 0x%x\n",
11199                                 phba->pci_dev_grp);
11200                 break;
11201         }
11202         return rc;
11203 }
11204
11205 /**
11206  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11207  * @pdev: pointer to PCI device.
11208  *
11209  * This routine is registered to the PCI subsystem for error handling. This
11210  * function is called after PCI bus has been reset to restart the PCI card
11211  * from scratch, as if from a cold-boot. When this routine is invoked, it
11212  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11213  * routine, which will perform the proper device reset.
11214  *
11215  * Return codes
11216  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11217  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11218  **/
11219 static pci_ers_result_t
11220 lpfc_io_slot_reset(struct pci_dev *pdev)
11221 {
11222         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11223         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11224         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11225
11226         switch (phba->pci_dev_grp) {
11227         case LPFC_PCI_DEV_LP:
11228                 rc = lpfc_io_slot_reset_s3(pdev);
11229                 break;
11230         case LPFC_PCI_DEV_OC:
11231                 rc = lpfc_io_slot_reset_s4(pdev);
11232                 break;
11233         default:
11234                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11235                                 "1428 Invalid PCI device group: 0x%x\n",
11236                                 phba->pci_dev_grp);
11237                 break;
11238         }
11239         return rc;
11240 }
11241
11242 /**
11243  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11244  * @pdev: pointer to PCI device
11245  *
11246  * This routine is registered to the PCI subsystem for error handling. It
11247  * is called when kernel error recovery tells the lpfc driver that it is
11248  * OK to resume normal PCI operation after PCI bus error recovery. When
11249  * this routine is invoked, it dispatches the action to the proper SLI-3
11250  * or SLI-4 device io_resume routine, which will resume the device operation.
11251  **/
11252 static void
11253 lpfc_io_resume(struct pci_dev *pdev)
11254 {
11255         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11256         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11257
11258         switch (phba->pci_dev_grp) {
11259         case LPFC_PCI_DEV_LP:
11260                 lpfc_io_resume_s3(pdev);
11261                 break;
11262         case LPFC_PCI_DEV_OC:
11263                 lpfc_io_resume_s4(pdev);
11264                 break;
11265         default:
11266                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11267                                 "1429 Invalid PCI device group: 0x%x\n",
11268                                 phba->pci_dev_grp);
11269                 break;
11270         }
11271         return;
11272 }
11273
11274 /**
11275  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11276  * @phba: pointer to lpfc hba data structure.
11277  *
11278  * This routine checks to see if OAS is supported for this adapter. If
11279  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
11280  * the enable oas flag is cleared and the pool created for OAS device data
11281  * is destroyed.
11282  *
11283  **/
11284 void
11285 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11286 {
11287
11288         if (!phba->cfg_EnableXLane)
11289                 return;
11290
11291         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11292                 phba->cfg_fof = 1;
11293         } else {
11294                 phba->cfg_fof = 0;
11295                 if (phba->device_data_mem_pool)
11296                         mempool_destroy(phba->device_data_mem_pool);
11297                 phba->device_data_mem_pool = NULL;
11298         }
11299
11300         return;
11301 }
11302
11303 /**
11304  * lpfc_fof_queue_setup - Set up all the fof queues
11305  * @phba: pointer to lpfc hba data structure.
11306  *
11307  * This routine is invoked to set up all the fof queues for the FC HBA
11308  * operation.
11309  *
11310  * Return codes
11311  *      0 - successful
11312  *      -ENOMEM - No available memory
11313  **/
11314 int
11315 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11316 {
11317         struct lpfc_sli *psli = &phba->sli;
11318         int rc;
11319
11320         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11321         if (rc)
11322                 return -ENOMEM;
11323
11324         if (phba->cfg_fof) {
11325
11326                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11327                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11328                 if (rc)
11329                         goto out_oas_cq;
11330
11331                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11332                                     phba->sli4_hba.oas_cq, LPFC_FCP);
11333                 if (rc)
11334                         goto out_oas_wq;
11335
11336                 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11337                 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11338         }
11339
11340         return 0;
11341
11342 out_oas_wq:
11343         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11344 out_oas_cq:
11345         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11346         return rc;
11347
11348 }
11349
11350 /**
11351  * lpfc_fof_queue_create - Create all the fof queues
11352  * @phba: pointer to lpfc hba data structure.
11353  *
11354  * This routine is invoked to allocate all the fof queues for the FC HBA
11355  * operation. For each SLI4 queue type, the parameters such as queue entry
11356  * count (queue depth) shall be taken from the module parameter. For now,
11357  * we just use some constant number as place holder.
11358  *
11359  * Return codes
11360  *      0 - successful
11361  *      -ENOMEM - No availble memory
11362  *      -EIO - The mailbox failed to complete successfully.
11363  **/
11364 int
11365 lpfc_fof_queue_create(struct lpfc_hba *phba)
11366 {
11367         struct lpfc_queue *qdesc;
11368
11369         /* Create FOF EQ */
11370         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11371                                       phba->sli4_hba.eq_ecount);
11372         if (!qdesc)
11373                 goto out_error;
11374
11375         phba->sli4_hba.fof_eq = qdesc;
11376
11377         if (phba->cfg_fof) {
11378
11379                 /* Create OAS CQ */
11380                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11381                                                       phba->sli4_hba.cq_ecount);
11382                 if (!qdesc)
11383                         goto out_error;
11384
11385                 phba->sli4_hba.oas_cq = qdesc;
11386
11387                 /* Create OAS WQ */
11388                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
11389                                               phba->sli4_hba.wq_ecount);
11390                 if (!qdesc)
11391                         goto out_error;
11392
11393                 phba->sli4_hba.oas_wq = qdesc;
11394
11395         }
11396         return 0;
11397
11398 out_error:
11399         lpfc_fof_queue_destroy(phba);
11400         return -ENOMEM;
11401 }
11402
11403 /**
11404  * lpfc_fof_queue_destroy - Destroy all the fof queues
11405  * @phba: pointer to lpfc hba data structure.
11406  *
11407  * This routine is invoked to release all the SLI4 queues with the FC HBA
11408  * operation.
11409  *
11410  * Return codes
11411  *      0 - successful
11412  **/
11413 int
11414 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11415 {
11416         /* Release FOF Event queue */
11417         if (phba->sli4_hba.fof_eq != NULL) {
11418                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11419                 phba->sli4_hba.fof_eq = NULL;
11420         }
11421
11422         /* Release OAS Completion queue */
11423         if (phba->sli4_hba.oas_cq != NULL) {
11424                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11425                 phba->sli4_hba.oas_cq = NULL;
11426         }
11427
11428         /* Release OAS Work queue */
11429         if (phba->sli4_hba.oas_wq != NULL) {
11430                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11431                 phba->sli4_hba.oas_wq = NULL;
11432         }
11433         return 0;
11434 }
11435
11436 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11437
11438 static const struct pci_error_handlers lpfc_err_handler = {
11439         .error_detected = lpfc_io_error_detected,
11440         .slot_reset = lpfc_io_slot_reset,
11441         .resume = lpfc_io_resume,
11442 };
11443
11444 static struct pci_driver lpfc_driver = {
11445         .name           = LPFC_DRIVER_NAME,
11446         .id_table       = lpfc_id_table,
11447         .probe          = lpfc_pci_probe_one,
11448         .remove         = lpfc_pci_remove_one,
11449         .suspend        = lpfc_pci_suspend_one,
11450         .resume         = lpfc_pci_resume_one,
11451         .err_handler    = &lpfc_err_handler,
11452 };
11453
11454 static const struct file_operations lpfc_mgmt_fop = {
11455         .owner = THIS_MODULE,
11456 };
11457
11458 static struct miscdevice lpfc_mgmt_dev = {
11459         .minor = MISC_DYNAMIC_MINOR,
11460         .name = "lpfcmgmt",
11461         .fops = &lpfc_mgmt_fop,
11462 };
11463
11464 /**
11465  * lpfc_init - lpfc module initialization routine
11466  *
11467  * This routine is to be invoked when the lpfc module is loaded into the
11468  * kernel. The special kernel macro module_init() is used to indicate the
11469  * role of this routine to the kernel as lpfc module entry point.
11470  *
11471  * Return codes
11472  *   0 - successful
11473  *   -ENOMEM - FC attach transport failed
11474  *   all others - failed
11475  */
11476 static int __init
11477 lpfc_init(void)
11478 {
11479         int cpu;
11480         int error = 0;
11481
11482         printk(LPFC_MODULE_DESC "\n");
11483         printk(LPFC_COPYRIGHT "\n");
11484
11485         error = misc_register(&lpfc_mgmt_dev);
11486         if (error)
11487                 printk(KERN_ERR "Could not register lpfcmgmt device, "
11488                         "misc_register returned with status %d", error);
11489
11490         lpfc_transport_functions.vport_create = lpfc_vport_create;
11491         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11492         lpfc_transport_template =
11493                                 fc_attach_transport(&lpfc_transport_functions);
11494         if (lpfc_transport_template == NULL)
11495                 return -ENOMEM;
11496         lpfc_vport_transport_template =
11497                 fc_attach_transport(&lpfc_vport_transport_functions);
11498         if (lpfc_vport_transport_template == NULL) {
11499                 fc_release_transport(lpfc_transport_template);
11500                 return -ENOMEM;
11501         }
11502
11503         /* Initialize in case vector mapping is needed */
11504         lpfc_used_cpu = NULL;
11505         lpfc_present_cpu = 0;
11506         for_each_present_cpu(cpu)
11507                 lpfc_present_cpu++;
11508
11509         error = pci_register_driver(&lpfc_driver);
11510         if (error) {
11511                 fc_release_transport(lpfc_transport_template);
11512                 fc_release_transport(lpfc_vport_transport_template);
11513         }
11514
11515         return error;
11516 }
11517
11518 /**
11519  * lpfc_exit - lpfc module removal routine
11520  *
11521  * This routine is invoked when the lpfc module is removed from the kernel.
11522  * The special kernel macro module_exit() is used to indicate the role of
11523  * this routine to the kernel as lpfc module exit point.
11524  */
11525 static void __exit
11526 lpfc_exit(void)
11527 {
11528         misc_deregister(&lpfc_mgmt_dev);
11529         pci_unregister_driver(&lpfc_driver);
11530         fc_release_transport(lpfc_transport_template);
11531         fc_release_transport(lpfc_vport_transport_template);
11532         if (_dump_buf_data) {
11533                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11534                                 "_dump_buf_data at 0x%p\n",
11535                                 (1L << _dump_buf_data_order), _dump_buf_data);
11536                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11537         }
11538
11539         if (_dump_buf_dif) {
11540                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11541                                 "_dump_buf_dif at 0x%p\n",
11542                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
11543                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11544         }
11545         kfree(lpfc_used_cpu);
11546         idr_destroy(&lpfc_hba_index);
11547 }
11548
11549 module_init(lpfc_init);
11550 module_exit(lpfc_exit);
11551 MODULE_LICENSE("GPL");
11552 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11553 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11554 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);