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) 2004-2011 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/kthread.h>
  28 #include <linux/pci.h>
  29 #include <linux/spinlock.h>
  30 #include <linux/ctype.h>
  31 #include <linux/aer.h>
  32 #include <linux/slab.h>
  33 #include <linux/firmware.h>
  34
  35 #include <scsi/scsi.h>
  36 #include <scsi/scsi_device.h>
  37 #include <scsi/scsi_host.h>
  38 #include <scsi/scsi_transport_fc.h>
  39
  40 #include "lpfc_hw4.h"
  41 #include "lpfc_hw.h"
  42 #include "lpfc_sli.h"
  43 #include "lpfc_sli4.h"
  44 #include "lpfc_nl.h"
  45 #include "lpfc_disc.h"
  46 #include "lpfc_scsi.h"
  47 #include "lpfc.h"
  48 #include "lpfc_logmsg.h"
  49 #include "lpfc_crtn.h"
  50 #include "lpfc_vport.h"
  51 #include "lpfc_version.h"
  52
  53 char *_dump_buf_data;
  54 unsigned long _dump_buf_data_order;
  55 char *_dump_buf_dif;
  56 unsigned long _dump_buf_dif_order;
  57 spinlock_t _dump_buf_lock;
  58
  59 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  60 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  61 static int lpfc_sli4_queue_create(struct lpfc_hba *);
  62 static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
  63 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  64 static int lpfc_setup_endian_order(struct lpfc_hba *);
  65 static int lpfc_sli4_read_config(struct lpfc_hba *);
  66 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  67 static void lpfc_free_sgl_list(struct lpfc_hba *);
  68 static int lpfc_init_sgl_list(struct lpfc_hba *);
  69 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  70 static void lpfc_free_active_sgl(struct lpfc_hba *);
  71 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  72 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  73 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  74 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  75 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  76
  77 static struct scsi_transport_template *lpfc_transport_template = NULL;
  78 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  79 static DEFINE_IDR(lpfc_hba_index);
  80
  81 /**
  82  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  83  * @phba: pointer to lpfc hba data structure.
  84  *
  85  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  86  * mailbox command. It retrieves the revision information from the HBA and
  87  * collects the Vital Product Data (VPD) about the HBA for preparing the
  88  * configuration of the HBA.
  89  *
  90  * Return codes:
  91  *   0 - success.
  92  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
  93  *   Any other value - indicates an error.
  94  **/
  95 int
  96 lpfc_config_port_prep(struct lpfc_hba *phba)
  97 {
  98         lpfc_vpd_t *vp = &phba->vpd;
  99         int i = 0, rc;
 100         LPFC_MBOXQ_t *pmb;
 101         MAILBOX_t *mb;
 102         char *lpfc_vpd_data = NULL;
 103         uint16_t offset = 0;
 104         static char licensed[56] =
 105                     "key unlock for use with gnu public licensed code only\0";
 106         static int init_key = 1;
 107
 108         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 109         if (!pmb) {
 110                 phba->link_state = LPFC_HBA_ERROR;
 111                 return -ENOMEM;
 112         }
 113
 114         mb = &pmb->u.mb;
 115         phba->link_state = LPFC_INIT_MBX_CMDS;
 116
 117         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 118                 if (init_key) {
 119                         uint32_t *ptext = (uint32_t *) licensed;
 120
 121                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 122                                 *ptext = cpu_to_be32(*ptext);
 123                         init_key = 0;
 124                 }
 125
 126                 lpfc_read_nv(phba, pmb);
 127                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 128                         sizeof (mb->un.varRDnvp.rsvd3));
 129                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 130                          sizeof (licensed));
 131
 132                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 133
 134                 if (rc != MBX_SUCCESS) {
 135                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 136                                         "0324 Config Port initialization "
 137                                         "error, mbxCmd x%x READ_NVPARM, "
 138                                         "mbxStatus x%x\n",
 139                                         mb->mbxCommand, mb->mbxStatus);
 140                         mempool_free(pmb, phba->mbox_mem_pool);
 141                         return -ERESTART;
 142                 }
 143                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 144                        sizeof(phba->wwnn));
 145                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 146                        sizeof(phba->wwpn));
 147         }
 148
 149         phba->sli3_options = 0x0;
 150
 151         /* Setup and issue mailbox READ REV command */
 152         lpfc_read_rev(phba, pmb);
 153         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 154         if (rc != MBX_SUCCESS) {
 155                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 156                                 "0439 Adapter failed to init, mbxCmd x%x "
 157                                 "READ_REV, mbxStatus x%x\n",
 158                                 mb->mbxCommand, mb->mbxStatus);
 159                 mempool_free( pmb, phba->mbox_mem_pool);
 160                 return -ERESTART;
 161         }
 162
 163
 164         /*
 165          * The value of rr must be 1 since the driver set the cv field to 1.
 166          * This setting requires the FW to set all revision fields.
 167          */
 168         if (mb->un.varRdRev.rr == 0) {
 169                 vp->rev.rBit = 0;
 170                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 171                                 "0440 Adapter failed to init, READ_REV has "
 172                                 "missing revision information.\n");
 173                 mempool_free(pmb, phba->mbox_mem_pool);
 174                 return -ERESTART;
 175         }
 176
 177         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 178                 mempool_free(pmb, phba->mbox_mem_pool);
 179                 return -EINVAL;
 180         }
 181
 182         /* Save information as VPD data */
 183         vp->rev.rBit = 1;
 184         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 185         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 186         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 187         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 188         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 189         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 190         vp->rev.smRev = mb->un.varRdRev.smRev;
 191         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 192         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 193         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 194         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 195         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 196         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 197         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 198         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 199
 200         /* If the sli feature level is less then 9, we must
 201          * tear down all RPIs and VPIs on link down if NPIV
 202          * is enabled.
 203          */
 204         if (vp->rev.feaLevelHigh < 9)
 205                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 206
 207         if (lpfc_is_LC_HBA(phba->pcidev->device))
 208                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 209                                                 sizeof (phba->RandomData));
 210
 211         /* Get adapter VPD information */
 212         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 213         if (!lpfc_vpd_data)
 214                 goto out_free_mbox;
 215         do {
 216                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 217                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 218
 219                 if (rc != MBX_SUCCESS) {
 220                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 221                                         "0441 VPD not present on adapter, "
 222                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 223                                         mb->mbxCommand, mb->mbxStatus);
 224                         mb->un.varDmp.word_cnt = 0;
 225                 }
 226                 /* dump mem may return a zero when finished or we got a
 227                  * mailbox error, either way we are done.
 228                  */
 229                 if (mb->un.varDmp.word_cnt == 0)
 230                         break;
 231                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 232                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 233                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 234                                       lpfc_vpd_data + offset,
 235                                       mb->un.varDmp.word_cnt);
 236                 offset += mb->un.varDmp.word_cnt;
 237         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 238         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 239
 240         kfree(lpfc_vpd_data);
 241 out_free_mbox:
 242         mempool_free(pmb, phba->mbox_mem_pool);
 243         return 0;
 244 }
 245
 246 /**
 247  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 248  * @phba: pointer to lpfc hba data structure.
 249  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 250  *
 251  * This is the completion handler for driver's configuring asynchronous event
 252  * mailbox command to the device. If the mailbox command returns successfully,
 253  * it will set internal async event support flag to 1; otherwise, it will
 254  * set internal async event support flag to 0.
 255  **/
 256 static void
 257 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 258 {
 259         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 260                 phba->temp_sensor_support = 1;
 261         else
 262                 phba->temp_sensor_support = 0;
 263         mempool_free(pmboxq, phba->mbox_mem_pool);
 264         return;
 265 }
 266
 267 /**
 268  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 269  * @phba: pointer to lpfc hba data structure.
 270  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 271  *
 272  * This is the completion handler for dump mailbox command for getting
 273  * wake up parameters. When this command complete, the response contain
 274  * Option rom version of the HBA. This function translate the version number
 275  * into a human readable string and store it in OptionROMVersion.
 276  **/
 277 static void
 278 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 279 {
 280         struct prog_id *prg;
 281         uint32_t prog_id_word;
 282         char dist = ' ';
 283         /* character array used for decoding dist type. */
 284         char dist_char[] = "nabx";
 285
 286         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 287                 mempool_free(pmboxq, phba->mbox_mem_pool);
 288                 return;
 289         }
 290
 291         prg = (struct prog_id *) &prog_id_word;
 292
 293         /* word 7 contain option rom version */
 294         prog_id_word = pmboxq->u.mb.un.varWords[7];
 295
 296         /* Decode the Option rom version word to a readable string */
 297         if (prg->dist < 4)
 298                 dist = dist_char[prg->dist];
 299
 300         if ((prg->dist == 3) && (prg->num == 0))
 301                 sprintf(phba->OptionROMVersion, "%d.%d%d",
 302                         prg->ver, prg->rev, prg->lev);
 303         else
 304                 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
 305                         prg->ver, prg->rev, prg->lev,
 306                         dist, prg->num);
 307         mempool_free(pmboxq, phba->mbox_mem_pool);
 308         return;
 309 }
 310
 311 /**
 312  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 313  *      cfg_soft_wwnn, cfg_soft_wwpn
 314  * @vport: pointer to lpfc vport data structure.
 315  *
 316  *
 317  * Return codes
 318  *   None.
 319  **/
 320 void
 321 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 322 {
 323         /* If the soft name exists then update it using the service params */
 324         if (vport->phba->cfg_soft_wwnn)
 325                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 326                            vport->fc_sparam.nodeName.u.wwn);
 327         if (vport->phba->cfg_soft_wwpn)
 328                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 329                            vport->fc_sparam.portName.u.wwn);
 330
 331         /*
 332          * If the name is empty or there exists a soft name
 333          * then copy the service params name, otherwise use the fc name
 334          */
 335         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 336                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 337                         sizeof(struct lpfc_name));
 338         else
 339                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 340                         sizeof(struct lpfc_name));
 341
 342         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 343                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 344                         sizeof(struct lpfc_name));
 345         else
 346                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 347                         sizeof(struct lpfc_name));
 348 }
 349
 350 /**
 351  * lpfc_config_port_post - Perform lpfc initialization after config port
 352  * @phba: pointer to lpfc hba data structure.
 353  *
 354  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 355  * command call. It performs all internal resource and state setups on the
 356  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 357  * ELS ring timers, etc.
 358  *
 359  * Return codes
 360  *   0 - success.
 361  *   Any other value - error.
 362  **/
 363 int
 364 lpfc_config_port_post(struct lpfc_hba *phba)
 365 {
 366         struct lpfc_vport *vport = phba->pport;
 367         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 368         LPFC_MBOXQ_t *pmb;
 369         MAILBOX_t *mb;
 370         struct lpfc_dmabuf *mp;
 371         struct lpfc_sli *psli = &phba->sli;
 372         uint32_t status, timeout;
 373         int i, j;
 374         int rc;
 375
 376         spin_lock_irq(&phba->hbalock);
 377         /*
 378          * If the Config port completed correctly the HBA is not
 379          * over heated any more.
 380          */
 381         if (phba->over_temp_state == HBA_OVER_TEMP)
 382                 phba->over_temp_state = HBA_NORMAL_TEMP;
 383         spin_unlock_irq(&phba->hbalock);
 384
 385         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 386         if (!pmb) {
 387                 phba->link_state = LPFC_HBA_ERROR;
 388                 return -ENOMEM;
 389         }
 390         mb = &pmb->u.mb;
 391
 392         /* Get login parameters for NID.  */
 393         rc = lpfc_read_sparam(phba, pmb, 0);
 394         if (rc) {
 395                 mempool_free(pmb, phba->mbox_mem_pool);
 396                 return -ENOMEM;
 397         }
 398
 399         pmb->vport = vport;
 400         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 401                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 402                                 "0448 Adapter failed init, mbxCmd x%x "
 403                                 "READ_SPARM mbxStatus x%x\n",
 404                                 mb->mbxCommand, mb->mbxStatus);
 405                 phba->link_state = LPFC_HBA_ERROR;
 406                 mp = (struct lpfc_dmabuf *) pmb->context1;
 407                 mempool_free(pmb, phba->mbox_mem_pool);
 408                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 409                 kfree(mp);
 410                 return -EIO;
 411         }
 412
 413         mp = (struct lpfc_dmabuf *) pmb->context1;
 414
 415         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 416         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 417         kfree(mp);
 418         pmb->context1 = NULL;
 419         lpfc_update_vport_wwn(vport);
 420
 421         /* Update the fc_host data structures with new wwn. */
 422         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 423         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 424         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 425
 426         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 427         /* This should be consolidated into parse_vpd ? - mr */
 428         if (phba->SerialNumber[0] == 0) {
 429                 uint8_t *outptr;
 430
 431                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 432                 for (i = 0; i < 12; i++) {
 433                         status = *outptr++;
 434                         j = ((status & 0xf0) >> 4);
 435                         if (j <= 9)
 436                                 phba->SerialNumber[i] =
 437                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 438                         else
 439                                 phba->SerialNumber[i] =
 440                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 441                         i++;
 442                         j = (status & 0xf);
 443                         if (j <= 9)
 444                                 phba->SerialNumber[i] =
 445                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 446                         else
 447                                 phba->SerialNumber[i] =
 448                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 449                 }
 450         }
 451
 452         lpfc_read_config(phba, pmb);
 453         pmb->vport = vport;
 454         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 455                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 456                                 "0453 Adapter failed to init, mbxCmd x%x "
 457                                 "READ_CONFIG, mbxStatus x%x\n",
 458                                 mb->mbxCommand, mb->mbxStatus);
 459                 phba->link_state = LPFC_HBA_ERROR;
 460                 mempool_free( pmb, phba->mbox_mem_pool);
 461                 return -EIO;
 462         }
 463
 464         /* Check if the port is disabled */
 465         lpfc_sli_read_link_ste(phba);
 466
 467         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 468         if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
 469                 phba->cfg_hba_queue_depth =
 470                         (mb->un.varRdConfig.max_xri + 1) -
 471                                         lpfc_sli4_get_els_iocb_cnt(phba);
 472
 473         phba->lmt = mb->un.varRdConfig.lmt;
 474
 475         /* Get the default values for Model Name and Description */
 476         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 477
 478         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G)
 479             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G)
 480                 && !(phba->lmt & LMT_1Gb))
 481             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G)
 482                 && !(phba->lmt & LMT_2Gb))
 483             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G)
 484                 && !(phba->lmt & LMT_4Gb))
 485             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G)
 486                 && !(phba->lmt & LMT_8Gb))
 487             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G)
 488                 && !(phba->lmt & LMT_10Gb))
 489             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
 490                 && !(phba->lmt & LMT_16Gb))) {
 491                 /* Reset link speed to auto */
 492                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 493                         "1302 Invalid speed for this board: "
 494                         "Reset link speed to auto: x%x\n",
 495                         phba->cfg_link_speed);
 496                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 497         }
 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].cmdringaddr)
 503                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 504         if (psli->ring[psli->fcp_ring].cmdringaddr)
 505                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 506         if (psli->ring[psli->next_ring].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, jiffies + HZ * timeout);
 564         /* Set up heart beat (HB) timer */
 565         mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 566         phba->hb_outstanding = 0;
 567         phba->last_completion_time = jiffies;
 568         /* Set up error attention (ERATT) polling timer */
 569         mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
 570
 571         if (phba->hba_flag & LINK_DISABLED) {
 572                 lpfc_printf_log(phba,
 573                         KERN_ERR, LOG_INIT,
 574                         "2598 Adapter Link is disabled.\n");
 575                 lpfc_down_link(phba, pmb);
 576                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 577                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 578                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 579                         lpfc_printf_log(phba,
 580                         KERN_ERR, LOG_INIT,
 581                         "2599 Adapter failed to issue DOWN_LINK"
 582                         " mbox command rc 0x%x\n", rc);
 583
 584                         mempool_free(pmb, phba->mbox_mem_pool);
 585                         return -EIO;
 586                 }
 587         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 588                 lpfc_init_link(phba, pmb, phba->cfg_topology,
 589                         phba->cfg_link_speed);
 590                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 591                 lpfc_set_loopback_flag(phba);
 592                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 593                 if (rc != MBX_SUCCESS) {
 594                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 595                                 "0454 Adapter failed to init, mbxCmd x%x "
 596                                 "INIT_LINK, mbxStatus x%x\n",
 597                                 mb->mbxCommand, mb->mbxStatus);
 598
 599                         /* Clear all interrupt enable conditions */
 600                         writel(0, phba->HCregaddr);
 601                         readl(phba->HCregaddr); /* flush */
 602                         /* Clear all pending interrupts */
 603                         writel(0xffffffff, phba->HAregaddr);
 604                         readl(phba->HAregaddr); /* flush */
 605                         phba->link_state = LPFC_HBA_ERROR;
 606                         if (rc != MBX_BUSY)
 607                                 mempool_free(pmb, phba->mbox_mem_pool);
 608                         return -EIO;
 609                 }
 610         }
 611         /* MBOX buffer will be freed in mbox compl */
 612         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 613         if (!pmb) {
 614                 phba->link_state = LPFC_HBA_ERROR;
 615                 return -ENOMEM;
 616         }
 617
 618         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 619         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 620         pmb->vport = phba->pport;
 621         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 622
 623         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 624                 lpfc_printf_log(phba,
 625                                 KERN_ERR,
 626                                 LOG_INIT,
 627                                 "0456 Adapter failed to issue "
 628                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 629                                 rc);
 630                 mempool_free(pmb, phba->mbox_mem_pool);
 631         }
 632
 633         /* Get Option rom version */
 634         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 635         if (!pmb) {
 636                 phba->link_state = LPFC_HBA_ERROR;
 637                 return -ENOMEM;
 638         }
 639
 640         lpfc_dump_wakeup_param(phba, pmb);
 641         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 642         pmb->vport = phba->pport;
 643         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 644
 645         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 646                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 647                                 "to get Option ROM version status x%x\n", rc);
 648                 mempool_free(pmb, phba->mbox_mem_pool);
 649         }
 650
 651         return 0;
 652 }
 653
 654 /**
 655  * lpfc_hba_init_link - Initialize the FC link
 656  * @phba: pointer to lpfc hba data structure.
 657  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 658  *
 659  * This routine will issue the INIT_LINK mailbox command call.
 660  * It is available to other drivers through the lpfc_hba data
 661  * structure for use as a delayed link up mechanism with the
 662  * module parameter lpfc_suppress_link_up.
 663  *
 664  * Return code
 665  *              0 - success
 666  *              Any other value - error
 667  **/
 668 int
 669 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 670 {
 671         struct lpfc_vport *vport = phba->pport;
 672         LPFC_MBOXQ_t *pmb;
 673         MAILBOX_t *mb;
 674         int rc;
 675
 676         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 677         if (!pmb) {
 678                 phba->link_state = LPFC_HBA_ERROR;
 679                 return -ENOMEM;
 680         }
 681         mb = &pmb->u.mb;
 682         pmb->vport = vport;
 683
 684         lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
 685         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 686         lpfc_set_loopback_flag(phba);
 687         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 688         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 689                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 690                         "0498 Adapter failed to init, mbxCmd x%x "
 691                         "INIT_LINK, mbxStatus x%x\n",
 692                         mb->mbxCommand, mb->mbxStatus);
 693                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 694                         /* Clear all interrupt enable conditions */
 695                         writel(0, phba->HCregaddr);
 696                         readl(phba->HCregaddr); /* flush */
 697                         /* Clear all pending interrupts */
 698                         writel(0xffffffff, phba->HAregaddr);
 699                         readl(phba->HAregaddr); /* flush */
 700                 }
 701                 phba->link_state = LPFC_HBA_ERROR;
 702                 if (rc != MBX_BUSY || flag == MBX_POLL)
 703                         mempool_free(pmb, phba->mbox_mem_pool);
 704                 return -EIO;
 705         }
 706         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 707         if (flag == MBX_POLL)
 708                 mempool_free(pmb, phba->mbox_mem_pool);
 709
 710         return 0;
 711 }
 712
 713 /**
 714  * lpfc_hba_down_link - this routine downs the FC link
 715  * @phba: pointer to lpfc hba data structure.
 716  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 717  *
 718  * This routine will issue the DOWN_LINK mailbox command call.
 719  * It is available to other drivers through the lpfc_hba data
 720  * structure for use to stop the link.
 721  *
 722  * Return code
 723  *              0 - success
 724  *              Any other value - error
 725  **/
 726 int
 727 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 728 {
 729         LPFC_MBOXQ_t *pmb;
 730         int rc;
 731
 732         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 733         if (!pmb) {
 734                 phba->link_state = LPFC_HBA_ERROR;
 735                 return -ENOMEM;
 736         }
 737
 738         lpfc_printf_log(phba,
 739                 KERN_ERR, LOG_INIT,
 740                 "0491 Adapter Link is disabled.\n");
 741         lpfc_down_link(phba, pmb);
 742         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 743         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 744         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 745                 lpfc_printf_log(phba,
 746                 KERN_ERR, LOG_INIT,
 747                 "2522 Adapter failed to issue DOWN_LINK"
 748                 " mbox command rc 0x%x\n", rc);
 749
 750                 mempool_free(pmb, phba->mbox_mem_pool);
 751                 return -EIO;
 752         }
 753         if (flag == MBX_POLL)
 754                 mempool_free(pmb, phba->mbox_mem_pool);
 755
 756         return 0;
 757 }
 758
 759 /**
 760  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 761  * @phba: pointer to lpfc HBA data structure.
 762  *
 763  * This routine will do LPFC uninitialization before the HBA is reset when
 764  * bringing down the SLI Layer.
 765  *
 766  * Return codes
 767  *   0 - success.
 768  *   Any other value - error.
 769  **/
 770 int
 771 lpfc_hba_down_prep(struct lpfc_hba *phba)
 772 {
 773         struct lpfc_vport **vports;
 774         int i;
 775
 776         if (phba->sli_rev <= LPFC_SLI_REV3) {
 777                 /* Disable interrupts */
 778                 writel(0, phba->HCregaddr);
 779                 readl(phba->HCregaddr); /* flush */
 780         }
 781
 782         if (phba->pport->load_flag & FC_UNLOADING)
 783                 lpfc_cleanup_discovery_resources(phba->pport);
 784         else {
 785                 vports = lpfc_create_vport_work_array(phba);
 786                 if (vports != NULL)
 787                         for (i = 0; i <= phba->max_vports &&
 788                                 vports[i] != NULL; i++)
 789                                 lpfc_cleanup_discovery_resources(vports[i]);
 790                 lpfc_destroy_vport_work_array(phba, vports);
 791         }
 792         return 0;
 793 }
 794
 795 /**
 796  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 797  * @phba: pointer to lpfc HBA data structure.
 798  *
 799  * This routine will do uninitialization after the HBA is reset when bring
 800  * down the SLI Layer.
 801  *
 802  * Return codes
 803  *   0 - success.
 804  *   Any other value - error.
 805  **/
 806 static int
 807 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 808 {
 809         struct lpfc_sli *psli = &phba->sli;
 810         struct lpfc_sli_ring *pring;
 811         struct lpfc_dmabuf *mp, *next_mp;
 812         LIST_HEAD(completions);
 813         int i;
 814
 815         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 816                 lpfc_sli_hbqbuf_free_all(phba);
 817         else {
 818                 /* Cleanup preposted buffers on the ELS ring */
 819                 pring = &psli->ring[LPFC_ELS_RING];
 820                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 821                         list_del(&mp->list);
 822                         pring->postbufq_cnt--;
 823                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 824                         kfree(mp);
 825                 }
 826         }
 827
 828         spin_lock_irq(&phba->hbalock);
 829         for (i = 0; i < psli->num_rings; i++) {
 830                 pring = &psli->ring[i];
 831
 832                 /* At this point in time the HBA is either reset or DOA. Either
 833                  * way, nothing should be on txcmplq as it will NEVER complete.
 834                  */
 835                 list_splice_init(&pring->txcmplq, &completions);
 836                 pring->txcmplq_cnt = 0;
 837                 spin_unlock_irq(&phba->hbalock);
 838
 839                 /* Cancel all the IOCBs from the completions list */
 840                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 841                                       IOERR_SLI_ABORTED);
 842
 843                 lpfc_sli_abort_iocb_ring(phba, pring);
 844                 spin_lock_irq(&phba->hbalock);
 845         }
 846         spin_unlock_irq(&phba->hbalock);
 847
 848         return 0;
 849 }
 850
 851 /**
 852  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 853  * @phba: pointer to lpfc HBA data structure.
 854  *
 855  * This routine will do uninitialization after the HBA is reset when bring
 856  * down the SLI Layer.
 857  *
 858  * Return codes
 859  *   0 - success.
 860  *   Any other value - error.
 861  **/
 862 static int
 863 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 864 {
 865         struct lpfc_scsi_buf *psb, *psb_next;
 866         LIST_HEAD(aborts);
 867         int ret;
 868         unsigned long iflag = 0;
 869         struct lpfc_sglq *sglq_entry = NULL;
 870
 871         ret = lpfc_hba_down_post_s3(phba);
 872         if (ret)
 873                 return ret;
 874         /* At this point in time the HBA is either reset or DOA. Either
 875          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 876          * on the lpfc_sgl_list so that it can either be freed if the
 877          * driver is unloading or reposted if the driver is restarting
 878          * the port.
 879          */
 880         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 881                                         /* scsl_buf_list */
 882         /* abts_sgl_list_lock required because worker thread uses this
 883          * list.
 884          */
 885         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 886         list_for_each_entry(sglq_entry,
 887                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 888                 sglq_entry->state = SGL_FREED;
 889
 890         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 891                         &phba->sli4_hba.lpfc_sgl_list);
 892         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 893         /* abts_scsi_buf_list_lock required because worker thread uses this
 894          * list.
 895          */
 896         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 897         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 898                         &aborts);
 899         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 900         spin_unlock_irq(&phba->hbalock);
 901
 902         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 903                 psb->pCmd = NULL;
 904                 psb->status = IOSTAT_SUCCESS;
 905         }
 906         spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 907         list_splice(&aborts, &phba->lpfc_scsi_buf_list);
 908         spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 909         return 0;
 910 }
 911
 912 /**
 913  * lpfc_hba_down_post - Wrapper func for hba down post routine
 914  * @phba: pointer to lpfc HBA data structure.
 915  *
 916  * This routine wraps the actual SLI3 or SLI4 routine for performing
 917  * uninitialization after the HBA is reset when bring down the SLI Layer.
 918  *
 919  * Return codes
 920  *   0 - success.
 921  *   Any other value - error.
 922  **/
 923 int
 924 lpfc_hba_down_post(struct lpfc_hba *phba)
 925 {
 926         return (*phba->lpfc_hba_down_post)(phba);
 927 }
 928
 929 /**
 930  * lpfc_hb_timeout - The HBA-timer timeout handler
 931  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 932  *
 933  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 934  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 935  * work-port-events bitmap and the worker thread is notified. This timeout
 936  * event will be used by the worker thread to invoke the actual timeout
 937  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 938  * be performed in the timeout handler and the HBA timeout event bit shall
 939  * be cleared by the worker thread after it has taken the event bitmap out.
 940  **/
 941 static void
 942 lpfc_hb_timeout(unsigned long ptr)
 943 {
 944         struct lpfc_hba *phba;
 945         uint32_t tmo_posted;
 946         unsigned long iflag;
 947
 948         phba = (struct lpfc_hba *)ptr;
 949
 950         /* Check for heart beat timeout conditions */
 951         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 952         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 953         if (!tmo_posted)
 954                 phba->pport->work_port_events |= WORKER_HB_TMO;
 955         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 956
 957         /* Tell the worker thread there is work to do */
 958         if (!tmo_posted)
 959                 lpfc_worker_wake_up(phba);
 960         return;
 961 }
 962
 963 /**
 964  * lpfc_rrq_timeout - The RRQ-timer timeout handler
 965  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 966  *
 967  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 968  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 969  * work-port-events bitmap and the worker thread is notified. This timeout
 970  * event will be used by the worker thread to invoke the actual timeout
 971  * handler routine, lpfc_rrq_handler. Any periodical operations will
 972  * be performed in the timeout handler and the RRQ timeout event bit shall
 973  * be cleared by the worker thread after it has taken the event bitmap out.
 974  **/
 975 static void
 976 lpfc_rrq_timeout(unsigned long ptr)
 977 {
 978         struct lpfc_hba *phba;
 979         unsigned long iflag;
 980
 981         phba = (struct lpfc_hba *)ptr;
 982         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 983         phba->hba_flag |= HBA_RRQ_ACTIVE;
 984         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 985         lpfc_worker_wake_up(phba);
 986 }
 987
 988 /**
 989  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 990  * @phba: pointer to lpfc hba data structure.
 991  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 992  *
 993  * This is the callback function to the lpfc heart-beat mailbox command.
 994  * If configured, the lpfc driver issues the heart-beat mailbox command to
 995  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 996  * heart-beat mailbox command is issued, the driver shall set up heart-beat
 997  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 998  * heart-beat outstanding state. Once the mailbox command comes back and
 999  * no error conditions detected, the heart-beat mailbox command timer is
1000  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1001  * state is cleared for the next heart-beat. If the timer expired with the
1002  * heart-beat outstanding state set, the driver will put the HBA offline.
1003  **/
1004 static void
1005 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1006 {
1007         unsigned long drvr_flag;
1008
1009         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1010         phba->hb_outstanding = 0;
1011         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1012
1013         /* Check and reset heart-beat timer is necessary */
1014         mempool_free(pmboxq, phba->mbox_mem_pool);
1015         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1016                 !(phba->link_state == LPFC_HBA_ERROR) &&
1017                 !(phba->pport->load_flag & FC_UNLOADING))
1018                 mod_timer(&phba->hb_tmofunc,
1019                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1020         return;
1021 }
1022
1023 /**
1024  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1025  * @phba: pointer to lpfc hba data structure.
1026  *
1027  * This is the actual HBA-timer timeout handler to be invoked by the worker
1028  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1029  * handler performs any periodic operations needed for the device. If such
1030  * periodic event has already been attended to either in the interrupt handler
1031  * or by processing slow-ring or fast-ring events within the HBA-timer
1032  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1033  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1034  * is configured and there is no heart-beat mailbox command outstanding, a
1035  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1036  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1037  * to offline.
1038  **/
1039 void
1040 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1041 {
1042         struct lpfc_vport **vports;
1043         LPFC_MBOXQ_t *pmboxq;
1044         struct lpfc_dmabuf *buf_ptr;
1045         int retval, i;
1046         struct lpfc_sli *psli = &phba->sli;
1047         LIST_HEAD(completions);
1048
1049         vports = lpfc_create_vport_work_array(phba);
1050         if (vports != NULL)
1051                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1052                         lpfc_rcv_seq_check_edtov(vports[i]);
1053         lpfc_destroy_vport_work_array(phba, vports);
1054
1055         if ((phba->link_state == LPFC_HBA_ERROR) ||
1056                 (phba->pport->load_flag & FC_UNLOADING) ||
1057                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1058                 return;
1059
1060         spin_lock_irq(&phba->pport->work_port_lock);
1061
1062         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1063                 jiffies)) {
1064                 spin_unlock_irq(&phba->pport->work_port_lock);
1065                 if (!phba->hb_outstanding)
1066                         mod_timer(&phba->hb_tmofunc,
1067                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1068                 else
1069                         mod_timer(&phba->hb_tmofunc,
1070                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1071                 return;
1072         }
1073         spin_unlock_irq(&phba->pport->work_port_lock);
1074
1075         if (phba->elsbuf_cnt &&
1076                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1077                 spin_lock_irq(&phba->hbalock);
1078                 list_splice_init(&phba->elsbuf, &completions);
1079                 phba->elsbuf_cnt = 0;
1080                 phba->elsbuf_prev_cnt = 0;
1081                 spin_unlock_irq(&phba->hbalock);
1082
1083                 while (!list_empty(&completions)) {
1084                         list_remove_head(&completions, buf_ptr,
1085                                 struct lpfc_dmabuf, list);
1086                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1087                         kfree(buf_ptr);
1088                 }
1089         }
1090         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1091
1092         /* If there is no heart beat outstanding, issue a heartbeat command */
1093         if (phba->cfg_enable_hba_heartbeat) {
1094                 if (!phba->hb_outstanding) {
1095                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1096                                 (list_empty(&psli->mboxq))) {
1097                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1098                                                         GFP_KERNEL);
1099                                 if (!pmboxq) {
1100                                         mod_timer(&phba->hb_tmofunc,
1101                                                  jiffies +
1102                                                  HZ * LPFC_HB_MBOX_INTERVAL);
1103                                         return;
1104                                 }
1105
1106                                 lpfc_heart_beat(phba, pmboxq);
1107                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1108                                 pmboxq->vport = phba->pport;
1109                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1110                                                 MBX_NOWAIT);
1111
1112                                 if (retval != MBX_BUSY &&
1113                                         retval != MBX_SUCCESS) {
1114                                         mempool_free(pmboxq,
1115                                                         phba->mbox_mem_pool);
1116                                         mod_timer(&phba->hb_tmofunc,
1117                                                 jiffies +
1118                                                 HZ * LPFC_HB_MBOX_INTERVAL);
1119                                         return;
1120                                 }
1121                                 phba->skipped_hb = 0;
1122                                 phba->hb_outstanding = 1;
1123                         } else if (time_before_eq(phba->last_completion_time,
1124                                         phba->skipped_hb)) {
1125                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1126                                         "2857 Last completion time not "
1127                                         " updated in %d ms\n",
1128                                         jiffies_to_msecs(jiffies
1129                                                  - phba->last_completion_time));
1130                         } else
1131                                 phba->skipped_hb = jiffies;
1132
1133                         mod_timer(&phba->hb_tmofunc,
1134                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1135                         return;
1136                 } else {
1137                         /*
1138                         * If heart beat timeout called with hb_outstanding set
1139                         * we need to give the hb mailbox cmd a chance to
1140                         * complete or TMO.
1141                         */
1142                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1143                                         "0459 Adapter heartbeat still out"
1144                                         "standing:last compl time was %d ms.\n",
1145                                         jiffies_to_msecs(jiffies
1146                                                  - phba->last_completion_time));
1147                         mod_timer(&phba->hb_tmofunc,
1148                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1149                 }
1150         }
1151 }
1152
1153 /**
1154  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1155  * @phba: pointer to lpfc hba data structure.
1156  *
1157  * This routine is called to bring the HBA offline when HBA hardware error
1158  * other than Port Error 6 has been detected.
1159  **/
1160 static void
1161 lpfc_offline_eratt(struct lpfc_hba *phba)
1162 {
1163         struct lpfc_sli   *psli = &phba->sli;
1164
1165         spin_lock_irq(&phba->hbalock);
1166         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1167         spin_unlock_irq(&phba->hbalock);
1168         lpfc_offline_prep(phba);
1169
1170         lpfc_offline(phba);
1171         lpfc_reset_barrier(phba);
1172         spin_lock_irq(&phba->hbalock);
1173         lpfc_sli_brdreset(phba);
1174         spin_unlock_irq(&phba->hbalock);
1175         lpfc_hba_down_post(phba);
1176         lpfc_sli_brdready(phba, HS_MBRDY);
1177         lpfc_unblock_mgmt_io(phba);
1178         phba->link_state = LPFC_HBA_ERROR;
1179         return;
1180 }
1181
1182 /**
1183  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1184  * @phba: pointer to lpfc hba data structure.
1185  *
1186  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1187  * other than Port Error 6 has been detected.
1188  **/
1189 static void
1190 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1191 {
1192         lpfc_offline_prep(phba);
1193         lpfc_offline(phba);
1194         lpfc_sli4_brdreset(phba);
1195         lpfc_hba_down_post(phba);
1196         lpfc_sli4_post_status_check(phba);
1197         lpfc_unblock_mgmt_io(phba);
1198         phba->link_state = LPFC_HBA_ERROR;
1199 }
1200
1201 /**
1202  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1203  * @phba: pointer to lpfc hba data structure.
1204  *
1205  * This routine is invoked to handle the deferred HBA hardware error
1206  * conditions. This type of error is indicated by HBA by setting ER1
1207  * and another ER bit in the host status register. The driver will
1208  * wait until the ER1 bit clears before handling the error condition.
1209  **/
1210 static void
1211 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1212 {
1213         uint32_t old_host_status = phba->work_hs;
1214         struct lpfc_sli_ring  *pring;
1215         struct lpfc_sli *psli = &phba->sli;
1216
1217         /* If the pci channel is offline, ignore possible errors,
1218          * since we cannot communicate with the pci card anyway.
1219          */
1220         if (pci_channel_offline(phba->pcidev)) {
1221                 spin_lock_irq(&phba->hbalock);
1222                 phba->hba_flag &= ~DEFER_ERATT;
1223                 spin_unlock_irq(&phba->hbalock);
1224                 return;
1225         }
1226
1227         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1228                 "0479 Deferred Adapter Hardware Error "
1229                 "Data: x%x x%x x%x\n",
1230                 phba->work_hs,
1231                 phba->work_status[0], phba->work_status[1]);
1232
1233         spin_lock_irq(&phba->hbalock);
1234         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1235         spin_unlock_irq(&phba->hbalock);
1236
1237
1238         /*
1239          * Firmware stops when it triggred erratt. That could cause the I/Os
1240          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1241          * SCSI layer retry it after re-establishing link.
1242          */
1243         pring = &psli->ring[psli->fcp_ring];
1244         lpfc_sli_abort_iocb_ring(phba, pring);
1245
1246         /*
1247          * There was a firmware error. Take the hba offline and then
1248          * attempt to restart it.
1249          */
1250         lpfc_offline_prep(phba);
1251         lpfc_offline(phba);
1252
1253         /* Wait for the ER1 bit to clear.*/
1254         while (phba->work_hs & HS_FFER1) {
1255                 msleep(100);
1256                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1257                         phba->work_hs = UNPLUG_ERR ;
1258                         break;
1259                 }
1260                 /* If driver is unloading let the worker thread continue */
1261                 if (phba->pport->load_flag & FC_UNLOADING) {
1262                         phba->work_hs = 0;
1263                         break;
1264                 }
1265         }
1266
1267         /*
1268          * This is to ptrotect against a race condition in which
1269          * first write to the host attention register clear the
1270          * host status register.
1271          */
1272         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1273                 phba->work_hs = old_host_status & ~HS_FFER1;
1274
1275         spin_lock_irq(&phba->hbalock);
1276         phba->hba_flag &= ~DEFER_ERATT;
1277         spin_unlock_irq(&phba->hbalock);
1278         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1279         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1280 }
1281
1282 static void
1283 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1284 {
1285         struct lpfc_board_event_header board_event;
1286         struct Scsi_Host *shost;
1287
1288         board_event.event_type = FC_REG_BOARD_EVENT;
1289         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1290         shost = lpfc_shost_from_vport(phba->pport);
1291         fc_host_post_vendor_event(shost, fc_get_event_number(),
1292                                   sizeof(board_event),
1293                                   (char *) &board_event,
1294                                   LPFC_NL_VENDOR_ID);
1295 }
1296
1297 /**
1298  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1299  * @phba: pointer to lpfc hba data structure.
1300  *
1301  * This routine is invoked to handle the following HBA hardware error
1302  * conditions:
1303  * 1 - HBA error attention interrupt
1304  * 2 - DMA ring index out of range
1305  * 3 - Mailbox command came back as unknown
1306  **/
1307 static void
1308 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1309 {
1310         struct lpfc_vport *vport = phba->pport;
1311         struct lpfc_sli   *psli = &phba->sli;
1312         struct lpfc_sli_ring  *pring;
1313         uint32_t event_data;
1314         unsigned long temperature;
1315         struct temp_event temp_event_data;
1316         struct Scsi_Host  *shost;
1317
1318         /* If the pci channel is offline, ignore possible errors,
1319          * since we cannot communicate with the pci card anyway.
1320          */
1321         if (pci_channel_offline(phba->pcidev)) {
1322                 spin_lock_irq(&phba->hbalock);
1323                 phba->hba_flag &= ~DEFER_ERATT;
1324                 spin_unlock_irq(&phba->hbalock);
1325                 return;
1326         }
1327
1328         /* If resets are disabled then leave the HBA alone and return */
1329         if (!phba->cfg_enable_hba_reset)
1330                 return;
1331
1332         /* Send an internal error event to mgmt application */
1333         lpfc_board_errevt_to_mgmt(phba);
1334
1335         if (phba->hba_flag & DEFER_ERATT)
1336                 lpfc_handle_deferred_eratt(phba);
1337
1338         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1339                 if (phba->work_hs & HS_FFER6)
1340                         /* Re-establishing Link */
1341                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1342                                         "1301 Re-establishing Link "
1343                                         "Data: x%x x%x x%x\n",
1344                                         phba->work_hs, phba->work_status[0],
1345                                         phba->work_status[1]);
1346                 if (phba->work_hs & HS_FFER8)
1347                         /* Device Zeroization */
1348                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1349                                         "2861 Host Authentication device "
1350                                         "zeroization Data:x%x x%x x%x\n",
1351                                         phba->work_hs, phba->work_status[0],
1352                                         phba->work_status[1]);
1353
1354                 spin_lock_irq(&phba->hbalock);
1355                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1356                 spin_unlock_irq(&phba->hbalock);
1357
1358                 /*
1359                 * Firmware stops when it triggled erratt with HS_FFER6.
1360                 * That could cause the I/Os dropped by the firmware.
1361                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1362                 * retry it after re-establishing link.
1363                 */
1364                 pring = &psli->ring[psli->fcp_ring];
1365                 lpfc_sli_abort_iocb_ring(phba, pring);
1366
1367                 /*
1368                  * There was a firmware error.  Take the hba offline and then
1369                  * attempt to restart it.
1370                  */
1371                 lpfc_offline_prep(phba);
1372                 lpfc_offline(phba);
1373                 lpfc_sli_brdrestart(phba);
1374                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1375                         lpfc_unblock_mgmt_io(phba);
1376                         return;
1377                 }
1378                 lpfc_unblock_mgmt_io(phba);
1379         } else if (phba->work_hs & HS_CRIT_TEMP) {
1380                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1381                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1382                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1383                 temp_event_data.data = (uint32_t)temperature;
1384
1385                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1386                                 "0406 Adapter maximum temperature exceeded "
1387                                 "(%ld), taking this port offline "
1388                                 "Data: x%x x%x x%x\n",
1389                                 temperature, phba->work_hs,
1390                                 phba->work_status[0], phba->work_status[1]);
1391
1392                 shost = lpfc_shost_from_vport(phba->pport);
1393                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1394                                           sizeof(temp_event_data),
1395                                           (char *) &temp_event_data,
1396                                           SCSI_NL_VID_TYPE_PCI
1397                                           | PCI_VENDOR_ID_EMULEX);
1398
1399                 spin_lock_irq(&phba->hbalock);
1400                 phba->over_temp_state = HBA_OVER_TEMP;
1401                 spin_unlock_irq(&phba->hbalock);
1402                 lpfc_offline_eratt(phba);
1403
1404         } else {
1405                 /* The if clause above forces this code path when the status
1406                  * failure is a value other than FFER6. Do not call the offline
1407                  * twice. This is the adapter hardware error path.
1408                  */
1409                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1410                                 "0457 Adapter Hardware Error "
1411                                 "Data: x%x x%x x%x\n",
1412                                 phba->work_hs,
1413                                 phba->work_status[0], phba->work_status[1]);
1414
1415                 event_data = FC_REG_DUMP_EVENT;
1416                 shost = lpfc_shost_from_vport(vport);
1417                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1418                                 sizeof(event_data), (char *) &event_data,
1419                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1420
1421                 lpfc_offline_eratt(phba);
1422         }
1423         return;
1424 }
1425
1426 /**
1427  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1428  * @phba: pointer to lpfc hba data structure.
1429  *
1430  * This routine is invoked to handle the SLI4 HBA hardware error attention
1431  * conditions.
1432  **/
1433 static void
1434 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1435 {
1436         struct lpfc_vport *vport = phba->pport;
1437         uint32_t event_data;
1438         struct Scsi_Host *shost;
1439         uint32_t if_type;
1440         struct lpfc_register portstat_reg;
1441
1442         /* If the pci channel is offline, ignore possible errors, since
1443          * we cannot communicate with the pci card anyway.
1444          */
1445         if (pci_channel_offline(phba->pcidev))
1446                 return;
1447         /* If resets are disabled then leave the HBA alone and return */
1448         if (!phba->cfg_enable_hba_reset)
1449                 return;
1450
1451         /* Send an internal error event to mgmt application */
1452         lpfc_board_errevt_to_mgmt(phba);
1453
1454         /* For now, the actual action for SLI4 device handling is not
1455          * specified yet, just treated it as adaptor hardware failure
1456          */
1457         event_data = FC_REG_DUMP_EVENT;
1458         shost = lpfc_shost_from_vport(vport);
1459         fc_host_post_vendor_event(shost, fc_get_event_number(),
1460                                   sizeof(event_data), (char *) &event_data,
1461                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1462
1463         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1464         switch (if_type) {
1465         case LPFC_SLI_INTF_IF_TYPE_0:
1466                 lpfc_sli4_offline_eratt(phba);
1467                 break;
1468         case LPFC_SLI_INTF_IF_TYPE_2:
1469                 portstat_reg.word0 =
1470                         readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
1471
1472                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1473                         /* TODO: Register for Overtemp async events. */
1474                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1475                                 "2889 Port Overtemperature event, "
1476                                 "taking port\n");
1477                         spin_lock_irq(&phba->hbalock);
1478                         phba->over_temp_state = HBA_OVER_TEMP;
1479                         spin_unlock_irq(&phba->hbalock);
1480                         lpfc_sli4_offline_eratt(phba);
1481                         return;
1482                 }
1483                 if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) {
1484                         /*
1485                          * TODO: Attempt port recovery via a port reset.
1486                          * When fully implemented, the driver should
1487                          * attempt to recover the port here and return.
1488                          * For now, log an error and take the port offline.
1489                          */
1490                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1491                                         "2887 Port Error: Attempting "
1492                                         "Port Recovery\n");
1493                 }
1494                 lpfc_sli4_offline_eratt(phba);
1495                 break;
1496         case LPFC_SLI_INTF_IF_TYPE_1:
1497         default:
1498                 break;
1499         }
1500 }
1501
1502 /**
1503  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1504  * @phba: pointer to lpfc HBA data structure.
1505  *
1506  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1507  * routine from the API jump table function pointer from the lpfc_hba struct.
1508  *
1509  * Return codes
1510  *   0 - success.
1511  *   Any other value - error.
1512  **/
1513 void
1514 lpfc_handle_eratt(struct lpfc_hba *phba)
1515 {
1516         (*phba->lpfc_handle_eratt)(phba);
1517 }
1518
1519 /**
1520  * lpfc_handle_latt - The HBA link event handler
1521  * @phba: pointer to lpfc hba data structure.
1522  *
1523  * This routine is invoked from the worker thread to handle a HBA host
1524  * attention link event.
1525  **/
1526 void
1527 lpfc_handle_latt(struct lpfc_hba *phba)
1528 {
1529         struct lpfc_vport *vport = phba->pport;
1530         struct lpfc_sli   *psli = &phba->sli;
1531         LPFC_MBOXQ_t *pmb;
1532         volatile uint32_t control;
1533         struct lpfc_dmabuf *mp;
1534         int rc = 0;
1535
1536         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1537         if (!pmb) {
1538                 rc = 1;
1539                 goto lpfc_handle_latt_err_exit;
1540         }
1541
1542         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1543         if (!mp) {
1544                 rc = 2;
1545                 goto lpfc_handle_latt_free_pmb;
1546         }
1547
1548         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1549         if (!mp->virt) {
1550                 rc = 3;
1551                 goto lpfc_handle_latt_free_mp;
1552         }
1553
1554         /* Cleanup any outstanding ELS commands */
1555         lpfc_els_flush_all_cmd(phba);
1556
1557         psli->slistat.link_event++;
1558         lpfc_read_topology(phba, pmb, mp);
1559         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1560         pmb->vport = vport;
1561         /* Block ELS IOCBs until we have processed this mbox command */
1562         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1563         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1564         if (rc == MBX_NOT_FINISHED) {
1565                 rc = 4;
1566                 goto lpfc_handle_latt_free_mbuf;
1567         }
1568
1569         /* Clear Link Attention in HA REG */
1570         spin_lock_irq(&phba->hbalock);
1571         writel(HA_LATT, phba->HAregaddr);
1572         readl(phba->HAregaddr); /* flush */
1573         spin_unlock_irq(&phba->hbalock);
1574
1575         return;
1576
1577 lpfc_handle_latt_free_mbuf:
1578         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1579         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1580 lpfc_handle_latt_free_mp:
1581         kfree(mp);
1582 lpfc_handle_latt_free_pmb:
1583         mempool_free(pmb, phba->mbox_mem_pool);
1584 lpfc_handle_latt_err_exit:
1585         /* Enable Link attention interrupts */
1586         spin_lock_irq(&phba->hbalock);
1587         psli->sli_flag |= LPFC_PROCESS_LA;
1588         control = readl(phba->HCregaddr);
1589         control |= HC_LAINT_ENA;
1590         writel(control, phba->HCregaddr);
1591         readl(phba->HCregaddr); /* flush */
1592
1593         /* Clear Link Attention in HA REG */
1594         writel(HA_LATT, phba->HAregaddr);
1595         readl(phba->HAregaddr); /* flush */
1596         spin_unlock_irq(&phba->hbalock);
1597         lpfc_linkdown(phba);
1598         phba->link_state = LPFC_HBA_ERROR;
1599
1600         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1601                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1602
1603         return;
1604 }
1605
1606 /**
1607  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1608  * @phba: pointer to lpfc hba data structure.
1609  * @vpd: pointer to the vital product data.
1610  * @len: length of the vital product data in bytes.
1611  *
1612  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1613  * an array of characters. In this routine, the ModelName, ProgramType, and
1614  * ModelDesc, etc. fields of the phba data structure will be populated.
1615  *
1616  * Return codes
1617  *   0 - pointer to the VPD passed in is NULL
1618  *   1 - success
1619  **/
1620 int
1621 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1622 {
1623         uint8_t lenlo, lenhi;
1624         int Length;
1625         int i, j;
1626         int finished = 0;
1627         int index = 0;
1628
1629         if (!vpd)
1630                 return 0;
1631
1632         /* Vital Product */
1633         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1634                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1635                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1636                         (uint32_t) vpd[3]);
1637         while (!finished && (index < (len - 4))) {
1638                 switch (vpd[index]) {
1639                 case 0x82:
1640                 case 0x91:
1641                         index += 1;
1642                         lenlo = vpd[index];
1643                         index += 1;
1644                         lenhi = vpd[index];
1645                         index += 1;
1646                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1647                         index += i;
1648                         break;
1649                 case 0x90:
1650                         index += 1;
1651                         lenlo = vpd[index];
1652                         index += 1;
1653                         lenhi = vpd[index];
1654                         index += 1;
1655                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1656                         if (Length > len - index)
1657                                 Length = len - index;
1658                         while (Length > 0) {
1659                         /* Look for Serial Number */
1660                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1661                                 index += 2;
1662                                 i = vpd[index];
1663                                 index += 1;
1664                                 j = 0;
1665                                 Length -= (3+i);
1666                                 while(i--) {
1667                                         phba->SerialNumber[j++] = vpd[index++];
1668                                         if (j == 31)
1669                                                 break;
1670                                 }
1671                                 phba->SerialNumber[j] = 0;
1672                                 continue;
1673                         }
1674                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1675                                 phba->vpd_flag |= VPD_MODEL_DESC;
1676                                 index += 2;
1677                                 i = vpd[index];
1678                                 index += 1;
1679                                 j = 0;
1680                                 Length -= (3+i);
1681                                 while(i--) {
1682                                         phba->ModelDesc[j++] = vpd[index++];
1683                                         if (j == 255)
1684                                                 break;
1685                                 }
1686                                 phba->ModelDesc[j] = 0;
1687                                 continue;
1688                         }
1689                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1690                                 phba->vpd_flag |= VPD_MODEL_NAME;
1691                                 index += 2;
1692                                 i = vpd[index];
1693                                 index += 1;
1694                                 j = 0;
1695                                 Length -= (3+i);
1696                                 while(i--) {
1697                                         phba->ModelName[j++] = vpd[index++];
1698                                         if (j == 79)
1699                                                 break;
1700                                 }
1701                                 phba->ModelName[j] = 0;
1702                                 continue;
1703                         }
1704                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1705                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1706                                 index += 2;
1707                                 i = vpd[index];
1708                                 index += 1;
1709                                 j = 0;
1710                                 Length -= (3+i);
1711                                 while(i--) {
1712                                         phba->ProgramType[j++] = vpd[index++];
1713                                         if (j == 255)
1714                                                 break;
1715                                 }
1716                                 phba->ProgramType[j] = 0;
1717                                 continue;
1718                         }
1719                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1720                                 phba->vpd_flag |= VPD_PORT;
1721                                 index += 2;
1722                                 i = vpd[index];
1723                                 index += 1;
1724                                 j = 0;
1725                                 Length -= (3+i);
1726                                 while(i--) {
1727                                 phba->Port[j++] = vpd[index++];
1728                                 if (j == 19)
1729                                         break;
1730                                 }
1731                                 phba->Port[j] = 0;
1732                                 continue;
1733                         }
1734                         else {
1735                                 index += 2;
1736                                 i = vpd[index];
1737                                 index += 1;
1738                                 index += i;
1739                                 Length -= (3 + i);
1740                         }
1741                 }
1742                 finished = 0;
1743                 break;
1744                 case 0x78:
1745                         finished = 1;
1746                         break;
1747                 default:
1748                         index ++;
1749                         break;
1750                 }
1751         }
1752
1753         return(1);
1754 }
1755
1756 /**
1757  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1758  * @phba: pointer to lpfc hba data structure.
1759  * @mdp: pointer to the data structure to hold the derived model name.
1760  * @descp: pointer to the data structure to hold the derived description.
1761  *
1762  * This routine retrieves HBA's description based on its registered PCI device
1763  * ID. The @descp passed into this function points to an array of 256 chars. It
1764  * shall be returned with the model name, maximum speed, and the host bus type.
1765  * The @mdp passed into this function points to an array of 80 chars. When the
1766  * function returns, the @mdp will be filled with the model name.
1767  **/
1768 static void
1769 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1770 {
1771         lpfc_vpd_t *vp;
1772         uint16_t dev_id = phba->pcidev->device;
1773         int max_speed;
1774         int GE = 0;
1775         int oneConnect = 0; /* default is not a oneConnect */
1776         struct {
1777                 char *name;
1778                 char *bus;
1779                 char *function;
1780         } m = {"<Unknown>", "", ""};
1781
1782         if (mdp && mdp[0] != '\0'
1783                 && descp && descp[0] != '\0')
1784                 return;
1785
1786         if (phba->lmt & LMT_16Gb)
1787                 max_speed = 16;
1788         else if (phba->lmt & LMT_10Gb)
1789                 max_speed = 10;
1790         else if (phba->lmt & LMT_8Gb)
1791                 max_speed = 8;
1792         else if (phba->lmt & LMT_4Gb)
1793                 max_speed = 4;
1794         else if (phba->lmt & LMT_2Gb)
1795                 max_speed = 2;
1796         else
1797                 max_speed = 1;
1798
1799         vp = &phba->vpd;
1800
1801         switch (dev_id) {
1802         case PCI_DEVICE_ID_FIREFLY:
1803                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1804                 break;
1805         case PCI_DEVICE_ID_SUPERFLY:
1806                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1807                         m = (typeof(m)){"LP7000", "PCI",
1808                                         "Fibre Channel Adapter"};
1809                 else
1810                         m = (typeof(m)){"LP7000E", "PCI",
1811                                         "Fibre Channel Adapter"};
1812                 break;
1813         case PCI_DEVICE_ID_DRAGONFLY:
1814                 m = (typeof(m)){"LP8000", "PCI",
1815                                 "Fibre Channel Adapter"};
1816                 break;
1817         case PCI_DEVICE_ID_CENTAUR:
1818                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1819                         m = (typeof(m)){"LP9002", "PCI",
1820                                         "Fibre Channel Adapter"};
1821                 else
1822                         m = (typeof(m)){"LP9000", "PCI",
1823                                         "Fibre Channel Adapter"};
1824                 break;
1825         case PCI_DEVICE_ID_RFLY:
1826                 m = (typeof(m)){"LP952", "PCI",
1827                                 "Fibre Channel Adapter"};
1828                 break;
1829         case PCI_DEVICE_ID_PEGASUS:
1830                 m = (typeof(m)){"LP9802", "PCI-X",
1831                                 "Fibre Channel Adapter"};
1832                 break;
1833         case PCI_DEVICE_ID_THOR:
1834                 m = (typeof(m)){"LP10000", "PCI-X",
1835                                 "Fibre Channel Adapter"};
1836                 break;
1837         case PCI_DEVICE_ID_VIPER:
1838                 m = (typeof(m)){"LPX1000",  "PCI-X",
1839                                 "Fibre Channel Adapter"};
1840                 break;
1841         case PCI_DEVICE_ID_PFLY:
1842                 m = (typeof(m)){"LP982", "PCI-X",
1843                                 "Fibre Channel Adapter"};
1844                 break;
1845         case PCI_DEVICE_ID_TFLY:
1846                 m = (typeof(m)){"LP1050", "PCI-X",
1847                                 "Fibre Channel Adapter"};
1848                 break;
1849         case PCI_DEVICE_ID_HELIOS:
1850                 m = (typeof(m)){"LP11000", "PCI-X2",
1851                                 "Fibre Channel Adapter"};
1852                 break;
1853         case PCI_DEVICE_ID_HELIOS_SCSP:
1854                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1855                                 "Fibre Channel Adapter"};
1856                 break;
1857         case PCI_DEVICE_ID_HELIOS_DCSP:
1858                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1859                                 "Fibre Channel Adapter"};
1860                 break;
1861         case PCI_DEVICE_ID_NEPTUNE:
1862                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1863                 break;
1864         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1865                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1866                 break;
1867         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1868                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1869                 break;
1870         case PCI_DEVICE_ID_BMID:
1871                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1872                 break;
1873         case PCI_DEVICE_ID_BSMB:
1874                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1875                 break;
1876         case PCI_DEVICE_ID_ZEPHYR:
1877                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1878                 break;
1879         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1880                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1881                 break;
1882         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1883                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1884                 GE = 1;
1885                 break;
1886         case PCI_DEVICE_ID_ZMID:
1887                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1888                 break;
1889         case PCI_DEVICE_ID_ZSMB:
1890                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1891                 break;
1892         case PCI_DEVICE_ID_LP101:
1893                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1894                 break;
1895         case PCI_DEVICE_ID_LP10000S:
1896                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1897                 break;
1898         case PCI_DEVICE_ID_LP11000S:
1899                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1900                 break;
1901         case PCI_DEVICE_ID_LPE11000S:
1902                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1903                 break;
1904         case PCI_DEVICE_ID_SAT:
1905                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1906                 break;
1907         case PCI_DEVICE_ID_SAT_MID:
1908                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1909                 break;
1910         case PCI_DEVICE_ID_SAT_SMB:
1911                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1912                 break;
1913         case PCI_DEVICE_ID_SAT_DCSP:
1914                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1915                 break;
1916         case PCI_DEVICE_ID_SAT_SCSP:
1917                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1918                 break;
1919         case PCI_DEVICE_ID_SAT_S:
1920                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1921                 break;
1922         case PCI_DEVICE_ID_HORNET:
1923                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1924                 GE = 1;
1925                 break;
1926         case PCI_DEVICE_ID_PROTEUS_VF:
1927                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1928                                 "Fibre Channel Adapter"};
1929                 break;
1930         case PCI_DEVICE_ID_PROTEUS_PF:
1931                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1932                                 "Fibre Channel Adapter"};
1933                 break;
1934         case PCI_DEVICE_ID_PROTEUS_S:
1935                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1936                                 "Fibre Channel Adapter"};
1937                 break;
1938         case PCI_DEVICE_ID_TIGERSHARK:
1939                 oneConnect = 1;
1940                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1941                 break;
1942         case PCI_DEVICE_ID_TOMCAT:
1943                 oneConnect = 1;
1944                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1945                 break;
1946         case PCI_DEVICE_ID_FALCON:
1947                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1948                                 "EmulexSecure Fibre"};
1949                 break;
1950         case PCI_DEVICE_ID_BALIUS:
1951                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1952                                 "Fibre Channel Adapter"};
1953                 break;
1954         case PCI_DEVICE_ID_LANCER_FC:
1955         case PCI_DEVICE_ID_LANCER_FC_VF:
1956                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
1957                 break;
1958         case PCI_DEVICE_ID_LANCER_FCOE:
1959         case PCI_DEVICE_ID_LANCER_FCOE_VF:
1960                 oneConnect = 1;
1961                 m = (typeof(m)){"OCe50100", "PCIe", "FCoE"};
1962                 break;
1963         default:
1964                 m = (typeof(m)){"Unknown", "", ""};
1965                 break;
1966         }
1967
1968         if (mdp && mdp[0] == '\0')
1969                 snprintf(mdp, 79,"%s", m.name);
1970         /*
1971          * oneConnect hba requires special processing, they are all initiators
1972          * and we put the port number on the end
1973          */
1974         if (descp && descp[0] == '\0') {
1975                 if (oneConnect)
1976                         snprintf(descp, 255,
1977                                 "Emulex OneConnect %s, %s Initiator, Port %s",
1978                                 m.name, m.function,
1979                                 phba->Port);
1980                 else
1981                         snprintf(descp, 255,
1982                                 "Emulex %s %d%s %s %s",
1983                                 m.name, max_speed, (GE) ? "GE" : "Gb",
1984                                 m.bus, m.function);
1985         }
1986 }
1987
1988 /**
1989  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1990  * @phba: pointer to lpfc hba data structure.
1991  * @pring: pointer to a IOCB ring.
1992  * @cnt: the number of IOCBs to be posted to the IOCB ring.
1993  *
1994  * This routine posts a given number of IOCBs with the associated DMA buffer
1995  * descriptors specified by the cnt argument to the given IOCB ring.
1996  *
1997  * Return codes
1998  *   The number of IOCBs NOT able to be posted to the IOCB ring.
1999  **/
2000 int
2001 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2002 {
2003         IOCB_t *icmd;
2004         struct lpfc_iocbq *iocb;
2005         struct lpfc_dmabuf *mp1, *mp2;
2006
2007         cnt += pring->missbufcnt;
2008
2009         /* While there are buffers to post */
2010         while (cnt > 0) {
2011                 /* Allocate buffer for  command iocb */
2012                 iocb = lpfc_sli_get_iocbq(phba);
2013                 if (iocb == NULL) {
2014                         pring->missbufcnt = cnt;
2015                         return cnt;
2016                 }
2017                 icmd = &iocb->iocb;
2018
2019                 /* 2 buffers can be posted per command */
2020                 /* Allocate buffer to post */
2021                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2022                 if (mp1)
2023                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2024                 if (!mp1 || !mp1->virt) {
2025                         kfree(mp1);
2026                         lpfc_sli_release_iocbq(phba, iocb);
2027                         pring->missbufcnt = cnt;
2028                         return cnt;
2029                 }
2030
2031                 INIT_LIST_HEAD(&mp1->list);
2032                 /* Allocate buffer to post */
2033                 if (cnt > 1) {
2034                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2035                         if (mp2)
2036                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2037                                                             &mp2->phys);
2038                         if (!mp2 || !mp2->virt) {
2039                                 kfree(mp2);
2040                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2041                                 kfree(mp1);
2042                                 lpfc_sli_release_iocbq(phba, iocb);
2043                                 pring->missbufcnt = cnt;
2044                                 return cnt;
2045                         }
2046
2047                         INIT_LIST_HEAD(&mp2->list);
2048                 } else {
2049                         mp2 = NULL;
2050                 }
2051
2052                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2053                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2054                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2055                 icmd->ulpBdeCount = 1;
2056                 cnt--;
2057                 if (mp2) {
2058                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2059                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2060                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2061                         cnt--;
2062                         icmd->ulpBdeCount = 2;
2063                 }
2064
2065                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2066                 icmd->ulpLe = 1;
2067
2068                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2069                     IOCB_ERROR) {
2070                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2071                         kfree(mp1);
2072                         cnt++;
2073                         if (mp2) {
2074                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2075                                 kfree(mp2);
2076                                 cnt++;
2077                         }
2078                         lpfc_sli_release_iocbq(phba, iocb);
2079                         pring->missbufcnt = cnt;
2080                         return cnt;
2081                 }
2082                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2083                 if (mp2)
2084                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2085         }
2086         pring->missbufcnt = 0;
2087         return 0;
2088 }
2089
2090 /**
2091  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2092  * @phba: pointer to lpfc hba data structure.
2093  *
2094  * This routine posts initial receive IOCB buffers to the ELS ring. The
2095  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2096  * set to 64 IOCBs.
2097  *
2098  * Return codes
2099  *   0 - success (currently always success)
2100  **/
2101 static int
2102 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2103 {
2104         struct lpfc_sli *psli = &phba->sli;
2105
2106         /* Ring 0, ELS / CT buffers */
2107         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2108         /* Ring 2 - FCP no buffers needed */
2109
2110         return 0;
2111 }
2112
2113 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2114
2115 /**
2116  * lpfc_sha_init - Set up initial array of hash table entries
2117  * @HashResultPointer: pointer to an array as hash table.
2118  *
2119  * This routine sets up the initial values to the array of hash table entries
2120  * for the LC HBAs.
2121  **/
2122 static void
2123 lpfc_sha_init(uint32_t * HashResultPointer)
2124 {
2125         HashResultPointer[0] = 0x67452301;
2126         HashResultPointer[1] = 0xEFCDAB89;
2127         HashResultPointer[2] = 0x98BADCFE;
2128         HashResultPointer[3] = 0x10325476;
2129         HashResultPointer[4] = 0xC3D2E1F0;
2130 }
2131
2132 /**
2133  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2134  * @HashResultPointer: pointer to an initial/result hash table.
2135  * @HashWorkingPointer: pointer to an working hash table.
2136  *
2137  * This routine iterates an initial hash table pointed by @HashResultPointer
2138  * with the values from the working hash table pointeed by @HashWorkingPointer.
2139  * The results are putting back to the initial hash table, returned through
2140  * the @HashResultPointer as the result hash table.
2141  **/
2142 static void
2143 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2144 {
2145         int t;
2146         uint32_t TEMP;
2147         uint32_t A, B, C, D, E;
2148         t = 16;
2149         do {
2150                 HashWorkingPointer[t] =
2151                     S(1,
2152                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2153                                                                      8] ^
2154                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2155         } while (++t <= 79);
2156         t = 0;
2157         A = HashResultPointer[0];
2158         B = HashResultPointer[1];
2159         C = HashResultPointer[2];
2160         D = HashResultPointer[3];
2161         E = HashResultPointer[4];
2162
2163         do {
2164                 if (t < 20) {
2165                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2166                 } else if (t < 40) {
2167                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2168                 } else if (t < 60) {
2169                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2170                 } else {
2171                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2172                 }
2173                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2174                 E = D;
2175                 D = C;
2176                 C = S(30, B);
2177                 B = A;
2178                 A = TEMP;
2179         } while (++t <= 79);
2180
2181         HashResultPointer[0] += A;
2182         HashResultPointer[1] += B;
2183         HashResultPointer[2] += C;
2184         HashResultPointer[3] += D;
2185         HashResultPointer[4] += E;
2186
2187 }
2188
2189 /**
2190  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2191  * @RandomChallenge: pointer to the entry of host challenge random number array.
2192  * @HashWorking: pointer to the entry of the working hash array.
2193  *
2194  * This routine calculates the working hash array referred by @HashWorking
2195  * from the challenge random numbers associated with the host, referred by
2196  * @RandomChallenge. The result is put into the entry of the working hash
2197  * array and returned by reference through @HashWorking.
2198  **/
2199 static void
2200 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2201 {
2202         *HashWorking = (*RandomChallenge ^ *HashWorking);
2203 }
2204
2205 /**
2206  * lpfc_hba_init - Perform special handling for LC HBA initialization
2207  * @phba: pointer to lpfc hba data structure.
2208  * @hbainit: pointer to an array of unsigned 32-bit integers.
2209  *
2210  * This routine performs the special handling for LC HBA initialization.
2211  **/
2212 void
2213 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2214 {
2215         int t;
2216         uint32_t *HashWorking;
2217         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2218
2219         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2220         if (!HashWorking)
2221                 return;
2222
2223         HashWorking[0] = HashWorking[78] = *pwwnn++;
2224         HashWorking[1] = HashWorking[79] = *pwwnn;
2225
2226         for (t = 0; t < 7; t++)
2227                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2228
2229         lpfc_sha_init(hbainit);
2230         lpfc_sha_iterate(hbainit, HashWorking);
2231         kfree(HashWorking);
2232 }
2233
2234 /**
2235  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2236  * @vport: pointer to a virtual N_Port data structure.
2237  *
2238  * This routine performs the necessary cleanups before deleting the @vport.
2239  * It invokes the discovery state machine to perform necessary state
2240  * transitions and to release the ndlps associated with the @vport. Note,
2241  * the physical port is treated as @vport 0.
2242  **/
2243 void
2244 lpfc_cleanup(struct lpfc_vport *vport)
2245 {
2246         struct lpfc_hba   *phba = vport->phba;
2247         struct lpfc_nodelist *ndlp, *next_ndlp;
2248         int i = 0;
2249
2250         if (phba->link_state > LPFC_LINK_DOWN)
2251                 lpfc_port_link_failure(vport);
2252
2253         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2254                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2255                         ndlp = lpfc_enable_node(vport, ndlp,
2256                                                 NLP_STE_UNUSED_NODE);
2257                         if (!ndlp)
2258                                 continue;
2259                         spin_lock_irq(&phba->ndlp_lock);
2260                         NLP_SET_FREE_REQ(ndlp);
2261                         spin_unlock_irq(&phba->ndlp_lock);
2262                         /* Trigger the release of the ndlp memory */
2263                         lpfc_nlp_put(ndlp);
2264                         continue;
2265                 }
2266                 spin_lock_irq(&phba->ndlp_lock);
2267                 if (NLP_CHK_FREE_REQ(ndlp)) {
2268                         /* The ndlp should not be in memory free mode already */
2269                         spin_unlock_irq(&phba->ndlp_lock);
2270                         continue;
2271                 } else
2272                         /* Indicate request for freeing ndlp memory */
2273                         NLP_SET_FREE_REQ(ndlp);
2274                 spin_unlock_irq(&phba->ndlp_lock);
2275
2276                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2277                     ndlp->nlp_DID == Fabric_DID) {
2278                         /* Just free up ndlp with Fabric_DID for vports */
2279                         lpfc_nlp_put(ndlp);
2280                         continue;
2281                 }
2282
2283                 if (ndlp->nlp_type & NLP_FABRIC)
2284                         lpfc_disc_state_machine(vport, ndlp, NULL,
2285                                         NLP_EVT_DEVICE_RECOVERY);
2286
2287                 lpfc_disc_state_machine(vport, ndlp, NULL,
2288                                              NLP_EVT_DEVICE_RM);
2289
2290         }
2291
2292         /* At this point, ALL ndlp's should be gone
2293          * because of the previous NLP_EVT_DEVICE_RM.
2294          * Lets wait for this to happen, if needed.
2295          */
2296         while (!list_empty(&vport->fc_nodes)) {
2297                 if (i++ > 3000) {
2298                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2299                                 "0233 Nodelist not empty\n");
2300                         list_for_each_entry_safe(ndlp, next_ndlp,
2301                                                 &vport->fc_nodes, nlp_listp) {
2302                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2303                                                 LOG_NODE,
2304                                                 "0282 did:x%x ndlp:x%p "
2305                                                 "usgmap:x%x refcnt:%d\n",
2306                                                 ndlp->nlp_DID, (void *)ndlp,
2307                                                 ndlp->nlp_usg_map,
2308                                                 atomic_read(
2309                                                         &ndlp->kref.refcount));
2310                         }
2311                         break;
2312                 }
2313
2314                 /* Wait for any activity on ndlps to settle */
2315                 msleep(10);
2316         }
2317         lpfc_cleanup_vports_rrqs(vport, NULL);
2318 }
2319
2320 /**
2321  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2322  * @vport: pointer to a virtual N_Port data structure.
2323  *
2324  * This routine stops all the timers associated with a @vport. This function
2325  * is invoked before disabling or deleting a @vport. Note that the physical
2326  * port is treated as @vport 0.
2327  **/
2328 void
2329 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2330 {
2331         del_timer_sync(&vport->els_tmofunc);
2332         del_timer_sync(&vport->fc_fdmitmo);
2333         del_timer_sync(&vport->delayed_disc_tmo);
2334         lpfc_can_disctmo(vport);
2335         return;
2336 }
2337
2338 /**
2339  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2340  * @phba: pointer to lpfc hba data structure.
2341  *
2342  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2343  * caller of this routine should already hold the host lock.
2344  **/
2345 void
2346 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2347 {
2348         /* Clear pending FCF rediscovery wait flag */
2349         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2350
2351         /* Now, try to stop the timer */
2352         del_timer(&phba->fcf.redisc_wait);
2353 }
2354
2355 /**
2356  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2357  * @phba: pointer to lpfc hba data structure.
2358  *
2359  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2360  * checks whether the FCF rediscovery wait timer is pending with the host
2361  * lock held before proceeding with disabling the timer and clearing the
2362  * wait timer pendig flag.
2363  **/
2364 void
2365 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2366 {
2367         spin_lock_irq(&phba->hbalock);
2368         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2369                 /* FCF rediscovery timer already fired or stopped */
2370                 spin_unlock_irq(&phba->hbalock);
2371                 return;
2372         }
2373         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2374         /* Clear failover in progress flags */
2375         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2376         spin_unlock_irq(&phba->hbalock);
2377 }
2378
2379 /**
2380  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2381  * @phba: pointer to lpfc hba data structure.
2382  *
2383  * This routine stops all the timers associated with a HBA. This function is
2384  * invoked before either putting a HBA offline or unloading the driver.
2385  **/
2386 void
2387 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2388 {
2389         lpfc_stop_vport_timers(phba->pport);
2390         del_timer_sync(&phba->sli.mbox_tmo);
2391         del_timer_sync(&phba->fabric_block_timer);
2392         del_timer_sync(&phba->eratt_poll);
2393         del_timer_sync(&phba->hb_tmofunc);
2394         if (phba->sli_rev == LPFC_SLI_REV4) {
2395                 del_timer_sync(&phba->rrq_tmr);
2396                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2397         }
2398         phba->hb_outstanding = 0;
2399
2400         switch (phba->pci_dev_grp) {
2401         case LPFC_PCI_DEV_LP:
2402                 /* Stop any LightPulse device specific driver timers */
2403                 del_timer_sync(&phba->fcp_poll_timer);
2404                 break;
2405         case LPFC_PCI_DEV_OC:
2406                 /* Stop any OneConnect device sepcific driver timers */
2407                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2408                 break;
2409         default:
2410                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2411                                 "0297 Invalid device group (x%x)\n",
2412                                 phba->pci_dev_grp);
2413                 break;
2414         }
2415         return;
2416 }
2417
2418 /**
2419  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2420  * @phba: pointer to lpfc hba data structure.
2421  *
2422  * This routine marks a HBA's management interface as blocked. Once the HBA's
2423  * management interface is marked as blocked, all the user space access to
2424  * the HBA, whether they are from sysfs interface or libdfc interface will
2425  * all be blocked. The HBA is set to block the management interface when the
2426  * driver prepares the HBA interface for online or offline.
2427  **/
2428 static void
2429 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2430 {
2431         unsigned long iflag;
2432         uint8_t actcmd = MBX_HEARTBEAT;
2433         unsigned long timeout;
2434
2435
2436         spin_lock_irqsave(&phba->hbalock, iflag);
2437         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2438         if (phba->sli.mbox_active)
2439                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2440         spin_unlock_irqrestore(&phba->hbalock, iflag);
2441         /* Determine how long we might wait for the active mailbox
2442          * command to be gracefully completed by firmware.
2443          */
2444         timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2445                         jiffies;
2446         /* Wait for the outstnading mailbox command to complete */
2447         while (phba->sli.mbox_active) {
2448                 /* Check active mailbox complete status every 2ms */
2449                 msleep(2);
2450                 if (time_after(jiffies, timeout)) {
2451                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2452                                 "2813 Mgmt IO is Blocked %x "
2453                                 "- mbox cmd %x still active\n",
2454                                 phba->sli.sli_flag, actcmd);
2455                         break;
2456                 }
2457         }
2458 }
2459
2460 /**
2461  * lpfc_online - Initialize and bring a HBA online
2462  * @phba: pointer to lpfc hba data structure.
2463  *
2464  * This routine initializes the HBA and brings a HBA online. During this
2465  * process, the management interface is blocked to prevent user space access
2466  * to the HBA interfering with the driver initialization.
2467  *
2468  * Return codes
2469  *   0 - successful
2470  *   1 - failed
2471  **/
2472 int
2473 lpfc_online(struct lpfc_hba *phba)
2474 {
2475         struct lpfc_vport *vport;
2476         struct lpfc_vport **vports;
2477         int i;
2478
2479         if (!phba)
2480                 return 0;
2481         vport = phba->pport;
2482
2483         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2484                 return 0;
2485
2486         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2487                         "0458 Bring Adapter online\n");
2488
2489         lpfc_block_mgmt_io(phba);
2490
2491         if (!lpfc_sli_queue_setup(phba)) {
2492                 lpfc_unblock_mgmt_io(phba);
2493                 return 1;
2494         }
2495
2496         if (phba->sli_rev == LPFC_SLI_REV4) {
2497                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2498                         lpfc_unblock_mgmt_io(phba);
2499                         return 1;
2500                 }
2501         } else {
2502                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2503                         lpfc_unblock_mgmt_io(phba);
2504                         return 1;
2505                 }
2506         }
2507
2508         vports = lpfc_create_vport_work_array(phba);
2509         if (vports != NULL)
2510                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2511                         struct Scsi_Host *shost;
2512                         shost = lpfc_shost_from_vport(vports[i]);
2513                         spin_lock_irq(shost->host_lock);
2514                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2515                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2516                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2517                         if (phba->sli_rev == LPFC_SLI_REV4)
2518                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2519                         spin_unlock_irq(shost->host_lock);
2520                 }
2521                 lpfc_destroy_vport_work_array(phba, vports);
2522
2523         lpfc_unblock_mgmt_io(phba);
2524         return 0;
2525 }
2526
2527 /**
2528  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2529  * @phba: pointer to lpfc hba data structure.
2530  *
2531  * This routine marks a HBA's management interface as not blocked. Once the
2532  * HBA's management interface is marked as not blocked, all the user space
2533  * access to the HBA, whether they are from sysfs interface or libdfc
2534  * interface will be allowed. The HBA is set to block the management interface
2535  * when the driver prepares the HBA interface for online or offline and then
2536  * set to unblock the management interface afterwards.
2537  **/
2538 void
2539 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2540 {
2541         unsigned long iflag;
2542
2543         spin_lock_irqsave(&phba->hbalock, iflag);
2544         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2545         spin_unlock_irqrestore(&phba->hbalock, iflag);
2546 }
2547
2548 /**
2549  * lpfc_offline_prep - Prepare a HBA to be brought offline
2550  * @phba: pointer to lpfc hba data structure.
2551  *
2552  * This routine is invoked to prepare a HBA to be brought offline. It performs
2553  * unregistration login to all the nodes on all vports and flushes the mailbox
2554  * queue to make it ready to be brought offline.
2555  **/
2556 void
2557 lpfc_offline_prep(struct lpfc_hba * phba)
2558 {
2559         struct lpfc_vport *vport = phba->pport;
2560         struct lpfc_nodelist  *ndlp, *next_ndlp;
2561         struct lpfc_vport **vports;
2562         struct Scsi_Host *shost;
2563         int i;
2564
2565         if (vport->fc_flag & FC_OFFLINE_MODE)
2566                 return;
2567
2568         lpfc_block_mgmt_io(phba);
2569
2570         lpfc_linkdown(phba);
2571
2572         /* Issue an unreg_login to all nodes on all vports */
2573         vports = lpfc_create_vport_work_array(phba);
2574         if (vports != NULL) {
2575                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2576                         if (vports[i]->load_flag & FC_UNLOADING)
2577                                 continue;
2578                         shost = lpfc_shost_from_vport(vports[i]);
2579                         spin_lock_irq(shost->host_lock);
2580                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2581                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2582                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2583                         spin_unlock_irq(shost->host_lock);
2584
2585                         shost = lpfc_shost_from_vport(vports[i]);
2586                         list_for_each_entry_safe(ndlp, next_ndlp,
2587                                                  &vports[i]->fc_nodes,
2588                                                  nlp_listp) {
2589                                 if (!NLP_CHK_NODE_ACT(ndlp))
2590                                         continue;
2591                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2592                                         continue;
2593                                 if (ndlp->nlp_type & NLP_FABRIC) {
2594                                         lpfc_disc_state_machine(vports[i], ndlp,
2595                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2596                                         lpfc_disc_state_machine(vports[i], ndlp,
2597                                                 NULL, NLP_EVT_DEVICE_RM);
2598                                 }
2599                                 spin_lock_irq(shost->host_lock);
2600                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2601                                 spin_unlock_irq(shost->host_lock);
2602                                 lpfc_unreg_rpi(vports[i], ndlp);
2603                         }
2604                 }
2605         }
2606         lpfc_destroy_vport_work_array(phba, vports);
2607
2608         lpfc_sli_mbox_sys_shutdown(phba);
2609 }
2610
2611 /**
2612  * lpfc_offline - Bring a HBA offline
2613  * @phba: pointer to lpfc hba data structure.
2614  *
2615  * This routine actually brings a HBA offline. It stops all the timers
2616  * associated with the HBA, brings down the SLI layer, and eventually
2617  * marks the HBA as in offline state for the upper layer protocol.
2618  **/
2619 void
2620 lpfc_offline(struct lpfc_hba *phba)
2621 {
2622         struct Scsi_Host  *shost;
2623         struct lpfc_vport **vports;
2624         int i;
2625
2626         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2627                 return;
2628
2629         /* stop port and all timers associated with this hba */
2630         lpfc_stop_port(phba);
2631         vports = lpfc_create_vport_work_array(phba);
2632         if (vports != NULL)
2633                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2634                         lpfc_stop_vport_timers(vports[i]);
2635         lpfc_destroy_vport_work_array(phba, vports);
2636         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2637                         "0460 Bring Adapter offline\n");
2638         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2639            now.  */
2640         lpfc_sli_hba_down(phba);
2641         spin_lock_irq(&phba->hbalock);
2642         phba->work_ha = 0;
2643         spin_unlock_irq(&phba->hbalock);
2644         vports = lpfc_create_vport_work_array(phba);
2645         if (vports != NULL)
2646                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2647                         shost = lpfc_shost_from_vport(vports[i]);
2648                         spin_lock_irq(shost->host_lock);
2649                         vports[i]->work_port_events = 0;
2650                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2651                         spin_unlock_irq(shost->host_lock);
2652                 }
2653         lpfc_destroy_vport_work_array(phba, vports);
2654 }
2655
2656 /**
2657  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2658  * @phba: pointer to lpfc hba data structure.
2659  *
2660  * This routine is to free all the SCSI buffers and IOCBs from the driver
2661  * list back to kernel. It is called from lpfc_pci_remove_one to free
2662  * the internal resources before the device is removed from the system.
2663  *
2664  * Return codes
2665  *   0 - successful (for now, it always returns 0)
2666  **/
2667 static int
2668 lpfc_scsi_free(struct lpfc_hba *phba)
2669 {
2670         struct lpfc_scsi_buf *sb, *sb_next;
2671         struct lpfc_iocbq *io, *io_next;
2672
2673         spin_lock_irq(&phba->hbalock);
2674         /* Release all the lpfc_scsi_bufs maintained by this host. */
2675         spin_lock(&phba->scsi_buf_list_lock);
2676         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2677                 list_del(&sb->list);
2678                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2679                               sb->dma_handle);
2680                 kfree(sb);
2681                 phba->total_scsi_bufs--;
2682         }
2683         spin_unlock(&phba->scsi_buf_list_lock);
2684
2685         /* Release all the lpfc_iocbq entries maintained by this host. */
2686         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2687                 list_del(&io->list);
2688                 kfree(io);
2689                 phba->total_iocbq_bufs--;
2690         }
2691
2692         spin_unlock_irq(&phba->hbalock);
2693         return 0;
2694 }
2695
2696 /**
2697  * lpfc_create_port - Create an FC port
2698  * @phba: pointer to lpfc hba data structure.
2699  * @instance: a unique integer ID to this FC port.
2700  * @dev: pointer to the device data structure.
2701  *
2702  * This routine creates a FC port for the upper layer protocol. The FC port
2703  * can be created on top of either a physical port or a virtual port provided
2704  * by the HBA. This routine also allocates a SCSI host data structure (shost)
2705  * and associates the FC port created before adding the shost into the SCSI
2706  * layer.
2707  *
2708  * Return codes
2709  *   @vport - pointer to the virtual N_Port data structure.
2710  *   NULL - port create failed.
2711  **/
2712 struct lpfc_vport *
2713 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2714 {
2715         struct lpfc_vport *vport;
2716         struct Scsi_Host  *shost;
2717         int error = 0;
2718
2719         if (dev != &phba->pcidev->dev)
2720                 shost = scsi_host_alloc(&lpfc_vport_template,
2721                                         sizeof(struct lpfc_vport));
2722         else
2723                 shost = scsi_host_alloc(&lpfc_template,
2724                                         sizeof(struct lpfc_vport));
2725         if (!shost)
2726                 goto out;
2727
2728         vport = (struct lpfc_vport *) shost->hostdata;
2729         vport->phba = phba;
2730         vport->load_flag |= FC_LOADING;
2731         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2732         vport->fc_rscn_flush = 0;
2733
2734         lpfc_get_vport_cfgparam(vport);
2735         shost->unique_id = instance;
2736         shost->max_id = LPFC_MAX_TARGET;
2737         shost->max_lun = vport->cfg_max_luns;
2738         shost->this_id = -1;
2739         shost->max_cmd_len = 16;
2740         if (phba->sli_rev == LPFC_SLI_REV4) {
2741                 shost->dma_boundary =
2742                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2743                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2744         }
2745
2746         /*
2747          * Set initial can_queue value since 0 is no longer supported and
2748          * scsi_add_host will fail. This will be adjusted later based on the
2749          * max xri value determined in hba setup.
2750          */
2751         shost->can_queue = phba->cfg_hba_queue_depth - 10;
2752         if (dev != &phba->pcidev->dev) {
2753                 shost->transportt = lpfc_vport_transport_template;
2754                 vport->port_type = LPFC_NPIV_PORT;
2755         } else {
2756                 shost->transportt = lpfc_transport_template;
2757                 vport->port_type = LPFC_PHYSICAL_PORT;
2758         }
2759
2760         /* Initialize all internally managed lists. */
2761         INIT_LIST_HEAD(&vport->fc_nodes);
2762         INIT_LIST_HEAD(&vport->rcv_buffer_list);
2763         spin_lock_init(&vport->work_port_lock);
2764
2765         init_timer(&vport->fc_disctmo);
2766         vport->fc_disctmo.function = lpfc_disc_timeout;
2767         vport->fc_disctmo.data = (unsigned long)vport;
2768
2769         init_timer(&vport->fc_fdmitmo);
2770         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2771         vport->fc_fdmitmo.data = (unsigned long)vport;
2772
2773         init_timer(&vport->els_tmofunc);
2774         vport->els_tmofunc.function = lpfc_els_timeout;
2775         vport->els_tmofunc.data = (unsigned long)vport;
2776
2777         init_timer(&vport->delayed_disc_tmo);
2778         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
2779         vport->delayed_disc_tmo.data = (unsigned long)vport;
2780
2781         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2782         if (error)
2783                 goto out_put_shost;
2784
2785         spin_lock_irq(&phba->hbalock);
2786         list_add_tail(&vport->listentry, &phba->port_list);
2787         spin_unlock_irq(&phba->hbalock);
2788         return vport;
2789
2790 out_put_shost:
2791         scsi_host_put(shost);
2792 out:
2793         return NULL;
2794 }
2795
2796 /**
2797  * destroy_port -  destroy an FC port
2798  * @vport: pointer to an lpfc virtual N_Port data structure.
2799  *
2800  * This routine destroys a FC port from the upper layer protocol. All the
2801  * resources associated with the port are released.
2802  **/
2803 void
2804 destroy_port(struct lpfc_vport *vport)
2805 {
2806         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2807         struct lpfc_hba  *phba = vport->phba;
2808
2809         lpfc_debugfs_terminate(vport);
2810         fc_remove_host(shost);
2811         scsi_remove_host(shost);
2812
2813         spin_lock_irq(&phba->hbalock);
2814         list_del_init(&vport->listentry);
2815         spin_unlock_irq(&phba->hbalock);
2816
2817         lpfc_cleanup(vport);
2818         return;
2819 }
2820
2821 /**
2822  * lpfc_get_instance - Get a unique integer ID
2823  *
2824  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2825  * uses the kernel idr facility to perform the task.
2826  *
2827  * Return codes:
2828  *   instance - a unique integer ID allocated as the new instance.
2829  *   -1 - lpfc get instance failed.
2830  **/
2831 int
2832 lpfc_get_instance(void)
2833 {
2834         int instance = 0;
2835
2836         /* Assign an unused number */
2837         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2838                 return -1;
2839         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2840                 return -1;
2841         return instance;
2842 }
2843
2844 /**
2845  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2846  * @shost: pointer to SCSI host data structure.
2847  * @time: elapsed time of the scan in jiffies.
2848  *
2849  * This routine is called by the SCSI layer with a SCSI host to determine
2850  * whether the scan host is finished.
2851  *
2852  * Note: there is no scan_start function as adapter initialization will have
2853  * asynchronously kicked off the link initialization.
2854  *
2855  * Return codes
2856  *   0 - SCSI host scan is not over yet.
2857  *   1 - SCSI host scan is over.
2858  **/
2859 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2860 {
2861         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2862         struct lpfc_hba   *phba = vport->phba;
2863         int stat = 0;
2864
2865         spin_lock_irq(shost->host_lock);
2866
2867         if (vport->load_flag & FC_UNLOADING) {
2868                 stat = 1;
2869                 goto finished;
2870         }
2871         if (time >= 30 * HZ) {
2872                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2873                                 "0461 Scanning longer than 30 "
2874                                 "seconds.  Continuing initialization\n");
2875                 stat = 1;
2876                 goto finished;
2877         }
2878         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2879                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2880                                 "0465 Link down longer than 15 "
2881                                 "seconds.  Continuing initialization\n");
2882                 stat = 1;
2883                 goto finished;
2884         }
2885
2886         if (vport->port_state != LPFC_VPORT_READY)
2887                 goto finished;
2888         if (vport->num_disc_nodes || vport->fc_prli_sent)
2889                 goto finished;
2890         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2891                 goto finished;
2892         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2893                 goto finished;
2894
2895         stat = 1;
2896
2897 finished:
2898         spin_unlock_irq(shost->host_lock);
2899         return stat;
2900 }
2901
2902 /**
2903  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2904  * @shost: pointer to SCSI host data structure.
2905  *
2906  * This routine initializes a given SCSI host attributes on a FC port. The
2907  * SCSI host can be either on top of a physical port or a virtual port.
2908  **/
2909 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2910 {
2911         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2912         struct lpfc_hba   *phba = vport->phba;
2913         /*
2914          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2915          */
2916
2917         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2918         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2919         fc_host_supported_classes(shost) = FC_COS_CLASS3;
2920
2921         memset(fc_host_supported_fc4s(shost), 0,
2922                sizeof(fc_host_supported_fc4s(shost)));
2923         fc_host_supported_fc4s(shost)[2] = 1;
2924         fc_host_supported_fc4s(shost)[7] = 1;
2925
2926         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2927                                  sizeof fc_host_symbolic_name(shost));
2928
2929         fc_host_supported_speeds(shost) = 0;
2930         if (phba->lmt & LMT_16Gb)
2931                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
2932         if (phba->lmt & LMT_10Gb)
2933                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2934         if (phba->lmt & LMT_8Gb)
2935                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2936         if (phba->lmt & LMT_4Gb)
2937                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2938         if (phba->lmt & LMT_2Gb)
2939                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2940         if (phba->lmt & LMT_1Gb)
2941                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2942
2943         fc_host_maxframe_size(shost) =
2944                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2945                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2946
2947         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2948
2949         /* This value is also unchanging */
2950         memset(fc_host_active_fc4s(shost), 0,
2951                sizeof(fc_host_active_fc4s(shost)));
2952         fc_host_active_fc4s(shost)[2] = 1;
2953         fc_host_active_fc4s(shost)[7] = 1;
2954
2955         fc_host_max_npiv_vports(shost) = phba->max_vpi;
2956         spin_lock_irq(shost->host_lock);
2957         vport->load_flag &= ~FC_LOADING;
2958         spin_unlock_irq(shost->host_lock);
2959 }
2960
2961 /**
2962  * lpfc_stop_port_s3 - Stop SLI3 device port
2963  * @phba: pointer to lpfc hba data structure.
2964  *
2965  * This routine is invoked to stop an SLI3 device port, it stops the device
2966  * from generating interrupts and stops the device driver's timers for the
2967  * device.
2968  **/
2969 static void
2970 lpfc_stop_port_s3(struct lpfc_hba *phba)
2971 {
2972         /* Clear all interrupt enable conditions */
2973         writel(0, phba->HCregaddr);
2974         readl(phba->HCregaddr); /* flush */
2975         /* Clear all pending interrupts */
2976         writel(0xffffffff, phba->HAregaddr);
2977         readl(phba->HAregaddr); /* flush */
2978
2979         /* Reset some HBA SLI setup states */
2980         lpfc_stop_hba_timers(phba);
2981         phba->pport->work_port_events = 0;
2982 }
2983
2984 /**
2985  * lpfc_stop_port_s4 - Stop SLI4 device port
2986  * @phba: pointer to lpfc hba data structure.
2987  *
2988  * This routine is invoked to stop an SLI4 device port, it stops the device
2989  * from generating interrupts and stops the device driver's timers for the
2990  * device.
2991  **/
2992 static void
2993 lpfc_stop_port_s4(struct lpfc_hba *phba)
2994 {
2995         /* Reset some HBA SLI4 setup states */
2996         lpfc_stop_hba_timers(phba);
2997         phba->pport->work_port_events = 0;
2998         phba->sli4_hba.intr_enable = 0;
2999 }
3000
3001 /**
3002  * lpfc_stop_port - Wrapper function for stopping hba port
3003  * @phba: Pointer to HBA context object.
3004  *
3005  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3006  * the API jump table function pointer from the lpfc_hba struct.
3007  **/
3008 void
3009 lpfc_stop_port(struct lpfc_hba *phba)
3010 {
3011         phba->lpfc_stop_port(phba);
3012 }
3013
3014 /**
3015  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3016  * @phba: Pointer to hba for which this call is being executed.
3017  *
3018  * This routine starts the timer waiting for the FCF rediscovery to complete.
3019  **/
3020 void
3021 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3022 {
3023         unsigned long fcf_redisc_wait_tmo =
3024                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3025         /* Start fcf rediscovery wait period timer */
3026         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3027         spin_lock_irq(&phba->hbalock);
3028         /* Allow action to new fcf asynchronous event */
3029         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3030         /* Mark the FCF rediscovery pending state */
3031         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3032         spin_unlock_irq(&phba->hbalock);
3033 }
3034
3035 /**
3036  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3037  * @ptr: Map to lpfc_hba data structure pointer.
3038  *
3039  * This routine is invoked when waiting for FCF table rediscover has been
3040  * timed out. If new FCF record(s) has (have) been discovered during the
3041  * wait period, a new FCF event shall be added to the FCOE async event
3042  * list, and then worker thread shall be waked up for processing from the
3043  * worker thread context.
3044  **/
3045 void
3046 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3047 {
3048         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3049
3050         /* Don't send FCF rediscovery event if timer cancelled */
3051         spin_lock_irq(&phba->hbalock);
3052         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3053                 spin_unlock_irq(&phba->hbalock);
3054                 return;
3055         }
3056         /* Clear FCF rediscovery timer pending flag */
3057         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3058         /* FCF rediscovery event to worker thread */
3059         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3060         spin_unlock_irq(&phba->hbalock);
3061         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3062                         "2776 FCF rediscover quiescent timer expired\n");
3063         /* wake up worker thread */
3064         lpfc_worker_wake_up(phba);
3065 }
3066
3067 /**
3068  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3069  * @phba: pointer to lpfc hba data structure.
3070  * @acqe_link: pointer to the async link completion queue entry.
3071  *
3072  * This routine is to parse the SLI4 link-attention link fault code and
3073  * translate it into the base driver's read link attention mailbox command
3074  * status.
3075  *
3076  * Return: Link-attention status in terms of base driver's coding.
3077  **/
3078 static uint16_t
3079 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3080                            struct lpfc_acqe_link *acqe_link)
3081 {
3082         uint16_t latt_fault;
3083
3084         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3085         case LPFC_ASYNC_LINK_FAULT_NONE:
3086         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3087         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3088                 latt_fault = 0;
3089                 break;
3090         default:
3091                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3092                                 "0398 Invalid link fault code: x%x\n",
3093                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3094                 latt_fault = MBXERR_ERROR;
3095                 break;
3096         }
3097         return latt_fault;
3098 }
3099
3100 /**
3101  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3102  * @phba: pointer to lpfc hba data structure.
3103  * @acqe_link: pointer to the async link completion queue entry.
3104  *
3105  * This routine is to parse the SLI4 link attention type and translate it
3106  * into the base driver's link attention type coding.
3107  *
3108  * Return: Link attention type in terms of base driver's coding.
3109  **/
3110 static uint8_t
3111 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3112                           struct lpfc_acqe_link *acqe_link)
3113 {
3114         uint8_t att_type;
3115
3116         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3117         case LPFC_ASYNC_LINK_STATUS_DOWN:
3118         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3119                 att_type = LPFC_ATT_LINK_DOWN;
3120                 break;
3121         case LPFC_ASYNC_LINK_STATUS_UP:
3122                 /* Ignore physical link up events - wait for logical link up */
3123                 att_type = LPFC_ATT_RESERVED;
3124                 break;
3125         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3126                 att_type = LPFC_ATT_LINK_UP;
3127                 break;
3128         default:
3129                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3130                                 "0399 Invalid link attention type: x%x\n",
3131                                 bf_get(lpfc_acqe_link_status, acqe_link));
3132                 att_type = LPFC_ATT_RESERVED;
3133                 break;
3134         }
3135         return att_type;
3136 }
3137
3138 /**
3139  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3140  * @phba: pointer to lpfc hba data structure.
3141  * @acqe_link: pointer to the async link completion queue entry.
3142  *
3143  * This routine is to parse the SLI4 link-attention link speed and translate
3144  * it into the base driver's link-attention link speed coding.
3145  *
3146  * Return: Link-attention link speed in terms of base driver's coding.
3147  **/
3148 static uint8_t
3149 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3150                                 struct lpfc_acqe_link *acqe_link)
3151 {
3152         uint8_t link_speed;
3153
3154         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3155         case LPFC_ASYNC_LINK_SPEED_ZERO:
3156         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3157         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3158                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3159                 break;
3160         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3161                 link_speed = LPFC_LINK_SPEED_1GHZ;
3162                 break;
3163         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3164                 link_speed = LPFC_LINK_SPEED_10GHZ;
3165                 break;
3166         default:
3167                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3168                                 "0483 Invalid link-attention link speed: x%x\n",
3169                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3170                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3171                 break;
3172         }
3173         return link_speed;
3174 }
3175
3176 /**
3177  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3178  * @phba: pointer to lpfc hba data structure.
3179  * @acqe_link: pointer to the async link completion queue entry.
3180  *
3181  * This routine is to handle the SLI4 asynchronous FCoE link event.
3182  **/
3183 static void
3184 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3185                          struct lpfc_acqe_link *acqe_link)
3186 {
3187         struct lpfc_dmabuf *mp;
3188         LPFC_MBOXQ_t *pmb;
3189         MAILBOX_t *mb;
3190         struct lpfc_mbx_read_top *la;
3191         uint8_t att_type;
3192         int rc;
3193
3194         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3195         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3196                 return;
3197         phba->fcoe_eventtag = acqe_link->event_tag;
3198         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3199         if (!pmb) {
3200                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3201                                 "0395 The mboxq allocation failed\n");
3202                 return;
3203         }
3204         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3205         if (!mp) {
3206                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3207                                 "0396 The lpfc_dmabuf allocation failed\n");
3208                 goto out_free_pmb;
3209         }
3210         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3211         if (!mp->virt) {
3212                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3213                                 "0397 The mbuf allocation failed\n");
3214                 goto out_free_dmabuf;
3215         }
3216
3217         /* Cleanup any outstanding ELS commands */
3218         lpfc_els_flush_all_cmd(phba);
3219
3220         /* Block ELS IOCBs until we have done process link event */
3221         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3222
3223         /* Update link event statistics */
3224         phba->sli.slistat.link_event++;
3225
3226         /* Create lpfc_handle_latt mailbox command from link ACQE */
3227         lpfc_read_topology(phba, pmb, mp);
3228         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3229         pmb->vport = phba->pport;
3230
3231         /* Keep the link status for extra SLI4 state machine reference */
3232         phba->sli4_hba.link_state.speed =
3233                                 bf_get(lpfc_acqe_link_speed, acqe_link);
3234         phba->sli4_hba.link_state.duplex =
3235                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3236         phba->sli4_hba.link_state.status =
3237                                 bf_get(lpfc_acqe_link_status, acqe_link);
3238         phba->sli4_hba.link_state.type =
3239                                 bf_get(lpfc_acqe_link_type, acqe_link);
3240         phba->sli4_hba.link_state.number =
3241                                 bf_get(lpfc_acqe_link_number, acqe_link);
3242         phba->sli4_hba.link_state.fault =
3243                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3244         phba->sli4_hba.link_state.logical_speed =
3245                         bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3246         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3247                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3248                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3249                         "Logical speed:%dMbps Fault:%d\n",
3250                         phba->sli4_hba.link_state.speed,
3251                         phba->sli4_hba.link_state.topology,
3252                         phba->sli4_hba.link_state.status,
3253                         phba->sli4_hba.link_state.type,
3254                         phba->sli4_hba.link_state.number,
3255                         phba->sli4_hba.link_state.logical_speed * 10,
3256                         phba->sli4_hba.link_state.fault);
3257         /*
3258          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3259          * topology info. Note: Optional for non FC-AL ports.
3260          */
3261         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3262                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3263                 if (rc == MBX_NOT_FINISHED)
3264                         goto out_free_dmabuf;
3265                 return;
3266         }
3267         /*
3268          * For FCoE Mode: fill in all the topology information we need and call
3269          * the READ_TOPOLOGY completion routine to continue without actually
3270          * sending the READ_TOPOLOGY mailbox command to the port.
3271          */
3272         /* Parse and translate status field */
3273         mb = &pmb->u.mb;
3274         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3275
3276         /* Parse and translate link attention fields */
3277         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3278         la->eventTag = acqe_link->event_tag;
3279         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3280         bf_set(lpfc_mbx_read_top_link_spd, la,
3281                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3282
3283         /* Fake the the following irrelvant fields */
3284         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3285         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3286         bf_set(lpfc_mbx_read_top_il, la, 0);
3287         bf_set(lpfc_mbx_read_top_pb, la, 0);
3288         bf_set(lpfc_mbx_read_top_fa, la, 0);
3289         bf_set(lpfc_mbx_read_top_mm, la, 0);
3290
3291         /* Invoke the lpfc_handle_latt mailbox command callback function */
3292         lpfc_mbx_cmpl_read_topology(phba, pmb);
3293
3294         return;
3295
3296 out_free_dmabuf:
3297         kfree(mp);
3298 out_free_pmb:
3299         mempool_free(pmb, phba->mbox_mem_pool);
3300 }
3301
3302 /**
3303  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3304  * @phba: pointer to lpfc hba data structure.
3305  * @acqe_fc: pointer to the async fc completion queue entry.
3306  *
3307  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3308  * that the event was received and then issue a read_topology mailbox command so
3309  * that the rest of the driver will treat it the same as SLI3.
3310  **/
3311 static void
3312 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3313 {
3314         struct lpfc_dmabuf *mp;
3315         LPFC_MBOXQ_t *pmb;
3316         int rc;
3317
3318         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3319             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3320                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3321                                 "2895 Non FC link Event detected.(%d)\n",
3322                                 bf_get(lpfc_trailer_type, acqe_fc));
3323                 return;
3324         }
3325         /* Keep the link status for extra SLI4 state machine reference */
3326         phba->sli4_hba.link_state.speed =
3327                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3328         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3329         phba->sli4_hba.link_state.topology =
3330                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3331         phba->sli4_hba.link_state.status =
3332                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3333         phba->sli4_hba.link_state.type =
3334                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3335         phba->sli4_hba.link_state.number =
3336                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3337         phba->sli4_hba.link_state.fault =
3338                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3339         phba->sli4_hba.link_state.logical_speed =
3340                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3341         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3342                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3343                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3344                         "%dMbps Fault:%d\n",
3345                         phba->sli4_hba.link_state.speed,
3346                         phba->sli4_hba.link_state.topology,
3347                         phba->sli4_hba.link_state.status,
3348                         phba->sli4_hba.link_state.type,
3349                         phba->sli4_hba.link_state.number,
3350                         phba->sli4_hba.link_state.logical_speed * 10,
3351                         phba->sli4_hba.link_state.fault);
3352         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3353         if (!pmb) {
3354                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3355                                 "2897 The mboxq allocation failed\n");
3356                 return;
3357         }
3358         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3359         if (!mp) {
3360                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3361                                 "2898 The lpfc_dmabuf allocation failed\n");
3362                 goto out_free_pmb;
3363         }
3364         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3365         if (!mp->virt) {
3366                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3367                                 "2899 The mbuf allocation failed\n");
3368                 goto out_free_dmabuf;
3369         }
3370
3371         /* Cleanup any outstanding ELS commands */
3372         lpfc_els_flush_all_cmd(phba);
3373
3374         /* Block ELS IOCBs until we have done process link event */
3375         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3376
3377         /* Update link event statistics */
3378         phba->sli.slistat.link_event++;
3379
3380         /* Create lpfc_handle_latt mailbox command from link ACQE */
3381         lpfc_read_topology(phba, pmb, mp);
3382         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3383         pmb->vport = phba->pport;
3384
3385         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3386         if (rc == MBX_NOT_FINISHED)
3387                 goto out_free_dmabuf;
3388         return;
3389
3390 out_free_dmabuf:
3391         kfree(mp);
3392 out_free_pmb:
3393         mempool_free(pmb, phba->mbox_mem_pool);
3394 }
3395
3396 /**
3397  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3398  * @phba: pointer to lpfc hba data structure.
3399  * @acqe_fc: pointer to the async SLI completion queue entry.
3400  *
3401  * This routine is to handle the SLI4 asynchronous SLI events.
3402  **/
3403 static void
3404 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3405 {
3406         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3407                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3408                         "x%08x SLI Event Type:%d",
3409                         acqe_sli->event_data1, acqe_sli->event_data2,
3410                         bf_get(lpfc_trailer_type, acqe_sli));
3411         return;
3412 }
3413
3414 /**
3415  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3416  * @vport: pointer to vport data structure.
3417  *
3418  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3419  * response to a CVL event.
3420  *
3421  * Return the pointer to the ndlp with the vport if successful, otherwise
3422  * return NULL.
3423  **/
3424 static struct lpfc_nodelist *
3425 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3426 {
3427         struct lpfc_nodelist *ndlp;
3428         struct Scsi_Host *shost;
3429         struct lpfc_hba *phba;
3430
3431         if (!vport)
3432                 return NULL;
3433         phba = vport->phba;
3434         if (!phba)
3435                 return NULL;
3436         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3437         if (!ndlp) {
3438                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3439                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3440                 if (!ndlp)
3441                         return 0;
3442                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3443                 /* Set the node type */
3444                 ndlp->nlp_type |= NLP_FABRIC;
3445                 /* Put ndlp onto node list */
3446                 lpfc_enqueue_node(vport, ndlp);
3447         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3448                 /* re-setup ndlp without removing from node list */
3449                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3450                 if (!ndlp)
3451                         return 0;
3452         }
3453         if ((phba->pport->port_state < LPFC_FLOGI) &&
3454                 (phba->pport->port_state != LPFC_VPORT_FAILED))
3455                 return NULL;
3456         /* If virtual link is not yet instantiated ignore CVL */
3457         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3458                 && (vport->port_state != LPFC_VPORT_FAILED))
3459                 return NULL;
3460         shost = lpfc_shost_from_vport(vport);
3461         if (!shost)
3462                 return NULL;
3463         lpfc_linkdown_port(vport);
3464         lpfc_cleanup_pending_mbox(vport);
3465         spin_lock_irq(shost->host_lock);
3466         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3467         spin_unlock_irq(shost->host_lock);
3468
3469         return ndlp;
3470 }
3471
3472 /**
3473  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3474  * @vport: pointer to lpfc hba data structure.
3475  *
3476  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3477  * response to a FCF dead event.
3478  **/
3479 static void
3480 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3481 {
3482         struct lpfc_vport **vports;
3483         int i;
3484
3485         vports = lpfc_create_vport_work_array(phba);
3486         if (vports)
3487                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3488                         lpfc_sli4_perform_vport_cvl(vports[i]);
3489         lpfc_destroy_vport_work_array(phba, vports);
3490 }
3491
3492 /**
3493  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3494  * @phba: pointer to lpfc hba data structure.
3495  * @acqe_link: pointer to the async fcoe completion queue entry.
3496  *
3497  * This routine is to handle the SLI4 asynchronous fcoe event.
3498  **/
3499 static void
3500 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
3501                         struct lpfc_acqe_fip *acqe_fip)
3502 {
3503         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
3504         int rc;
3505         struct lpfc_vport *vport;
3506         struct lpfc_nodelist *ndlp;
3507         struct Scsi_Host  *shost;
3508         int active_vlink_present;
3509         struct lpfc_vport **vports;
3510         int i;
3511
3512         phba->fc_eventTag = acqe_fip->event_tag;
3513         phba->fcoe_eventtag = acqe_fip->event_tag;
3514         switch (event_type) {
3515         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3516         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3517                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
3518                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3519                                         LOG_DISCOVERY,
3520                                         "2546 New FCF event, evt_tag:x%x, "
3521                                         "index:x%x\n",
3522                                         acqe_fip->event_tag,
3523                                         acqe_fip->index);
3524                 else
3525                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3526                                         LOG_DISCOVERY,
3527                                         "2788 FCF param modified event, "
3528                                         "evt_tag:x%x, index:x%x\n",
3529                                         acqe_fip->event_tag,
3530                                         acqe_fip->index);
3531                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3532                         /*
3533                          * During period of FCF discovery, read the FCF
3534                          * table record indexed by the event to update
3535                          * FCF roundrobin failover eligible FCF bmask.
3536                          */
3537                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3538                                         LOG_DISCOVERY,
3539                                         "2779 Read FCF (x%x) for updating "
3540                                         "roundrobin FCF failover bmask\n",
3541                                         acqe_fip->index);
3542                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
3543                 }
3544
3545                 /* If the FCF discovery is in progress, do nothing. */
3546                 spin_lock_irq(&phba->hbalock);
3547                 if (phba->hba_flag & FCF_TS_INPROG) {
3548                         spin_unlock_irq(&phba->hbalock);
3549                         break;
3550                 }
3551                 /* If fast FCF failover rescan event is pending, do nothing */
3552                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3553                         spin_unlock_irq(&phba->hbalock);
3554                         break;
3555                 }
3556
3557                 /* If the FCF has been in discovered state, do nothing. */
3558                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3559                         spin_unlock_irq(&phba->hbalock);
3560                         break;
3561                 }
3562                 spin_unlock_irq(&phba->hbalock);
3563
3564                 /* Otherwise, scan the entire FCF table and re-discover SAN */
3565                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3566                                 "2770 Start FCF table scan per async FCF "
3567                                 "event, evt_tag:x%x, index:x%x\n",
3568                                 acqe_fip->event_tag, acqe_fip->index);
3569                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3570                                                      LPFC_FCOE_FCF_GET_FIRST);
3571                 if (rc)
3572                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3573                                         "2547 Issue FCF scan read FCF mailbox "
3574                                         "command failed (x%x)\n", rc);
3575                 break;
3576
3577         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
3578                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3579                         "2548 FCF Table full count 0x%x tag 0x%x\n",
3580                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3581                         acqe_fip->event_tag);
3582                 break;
3583
3584         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
3585                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3586                         "2549 FCF (x%x) disconnected from network, "
3587                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
3588                 /*
3589                  * If we are in the middle of FCF failover process, clear
3590                  * the corresponding FCF bit in the roundrobin bitmap.
3591                  */
3592                 spin_lock_irq(&phba->hbalock);
3593                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3594                         spin_unlock_irq(&phba->hbalock);
3595                         /* Update FLOGI FCF failover eligible FCF bmask */
3596                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
3597                         break;
3598                 }
3599                 spin_unlock_irq(&phba->hbalock);
3600
3601                 /* If the event is not for currently used fcf do nothing */
3602                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
3603                         break;
3604
3605                 /*
3606                  * Otherwise, request the port to rediscover the entire FCF
3607                  * table for a fast recovery from case that the current FCF
3608                  * is no longer valid as we are not in the middle of FCF
3609                  * failover process already.
3610                  */
3611                 spin_lock_irq(&phba->hbalock);
3612                 /* Mark the fast failover process in progress */
3613                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3614                 spin_unlock_irq(&phba->hbalock);
3615
3616                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3617                                 "2771 Start FCF fast failover process due to "
3618                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3619                                 "\n", acqe_fip->event_tag, acqe_fip->index);
3620                 rc = lpfc_sli4_redisc_fcf_table(phba);
3621                 if (rc) {
3622                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3623                                         LOG_DISCOVERY,
3624                                         "2772 Issue FCF rediscover mabilbox "
3625                                         "command failed, fail through to FCF "
3626                                         "dead event\n");
3627                         spin_lock_irq(&phba->hbalock);
3628                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3629                         spin_unlock_irq(&phba->hbalock);
3630                         /*
3631                          * Last resort will fail over by treating this
3632                          * as a link down to FCF registration.
3633                          */
3634                         lpfc_sli4_fcf_dead_failthrough(phba);
3635                 } else {
3636                         /* Reset FCF roundrobin bmask for new discovery */
3637                         memset(phba->fcf.fcf_rr_bmask, 0,
3638                                sizeof(*phba->fcf.fcf_rr_bmask));
3639                         /*
3640                          * Handling fast FCF failover to a DEAD FCF event is
3641                          * considered equalivant to receiving CVL to all vports.
3642                          */
3643                         lpfc_sli4_perform_all_vport_cvl(phba);
3644                 }
3645                 break;
3646         case LPFC_FIP_EVENT_TYPE_CVL:
3647                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3648                         "2718 Clear Virtual Link Received for VPI 0x%x"
3649                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
3650
3651                 vport = lpfc_find_vport_by_vpid(phba,
3652                                 acqe_fip->index - phba->vpi_base);
3653                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3654                 if (!ndlp)
3655                         break;
3656                 active_vlink_present = 0;
3657
3658                 vports = lpfc_create_vport_work_array(phba);
3659                 if (vports) {
3660                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3661                                         i++) {
3662                                 if ((!(vports[i]->fc_flag &
3663                                         FC_VPORT_CVL_RCVD)) &&
3664                                         (vports[i]->port_state > LPFC_FDISC)) {
3665                                         active_vlink_present = 1;
3666                                         break;
3667                                 }
3668                         }
3669                         lpfc_destroy_vport_work_array(phba, vports);
3670                 }
3671
3672                 if (active_vlink_present) {
3673                         /*
3674                          * If there are other active VLinks present,
3675                          * re-instantiate the Vlink using FDISC.
3676                          */
3677                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3678                         shost = lpfc_shost_from_vport(vport);
3679                         spin_lock_irq(shost->host_lock);
3680                         ndlp->nlp_flag |= NLP_DELAY_TMO;
3681                         spin_unlock_irq(shost->host_lock);
3682                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3683                         vport->port_state = LPFC_FDISC;
3684                 } else {
3685                         /*
3686                          * Otherwise, we request port to rediscover
3687                          * the entire FCF table for a fast recovery
3688                          * from possible case that the current FCF
3689                          * is no longer valid if we are not already
3690                          * in the FCF failover process.
3691                          */
3692                         spin_lock_irq(&phba->hbalock);
3693                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3694                                 spin_unlock_irq(&phba->hbalock);
3695                                 break;
3696                         }
3697                         /* Mark the fast failover process in progress */
3698                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3699                         spin_unlock_irq(&phba->hbalock);
3700                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3701                                         LOG_DISCOVERY,
3702                                         "2773 Start FCF failover per CVL, "
3703                                         "evt_tag:x%x\n", acqe_fip->event_tag);
3704                         rc = lpfc_sli4_redisc_fcf_table(phba);
3705                         if (rc) {
3706                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3707                                                 LOG_DISCOVERY,
3708                                                 "2774 Issue FCF rediscover "
3709                                                 "mabilbox command failed, "
3710                                                 "through to CVL event\n");
3711                                 spin_lock_irq(&phba->hbalock);
3712                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3713                                 spin_unlock_irq(&phba->hbalock);
3714                                 /*
3715                                  * Last resort will be re-try on the
3716                                  * the current registered FCF entry.
3717                                  */
3718                                 lpfc_retry_pport_discovery(phba);
3719                         } else
3720                                 /*
3721                                  * Reset FCF roundrobin bmask for new
3722                                  * discovery.
3723                                  */
3724                                 memset(phba->fcf.fcf_rr_bmask, 0,
3725                                        sizeof(*phba->fcf.fcf_rr_bmask));
3726                 }
3727                 break;
3728         default:
3729                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3730                         "0288 Unknown FCoE event type 0x%x event tag "
3731                         "0x%x\n", event_type, acqe_fip->event_tag);
3732                 break;
3733         }
3734 }
3735
3736 /**
3737  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3738  * @phba: pointer to lpfc hba data structure.
3739  * @acqe_link: pointer to the async dcbx completion queue entry.
3740  *
3741  * This routine is to handle the SLI4 asynchronous dcbx event.
3742  **/
3743 static void
3744 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3745                          struct lpfc_acqe_dcbx *acqe_dcbx)
3746 {
3747         phba->fc_eventTag = acqe_dcbx->event_tag;
3748         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3749                         "0290 The SLI4 DCBX asynchronous event is not "
3750                         "handled yet\n");
3751 }
3752
3753 /**
3754  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3755  * @phba: pointer to lpfc hba data structure.
3756  * @acqe_link: pointer to the async grp5 completion queue entry.
3757  *
3758  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3759  * is an asynchronous notified of a logical link speed change.  The Port
3760  * reports the logical link speed in units of 10Mbps.
3761  **/
3762 static void
3763 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3764                          struct lpfc_acqe_grp5 *acqe_grp5)
3765 {
3766         uint16_t prev_ll_spd;
3767
3768         phba->fc_eventTag = acqe_grp5->event_tag;
3769         phba->fcoe_eventtag = acqe_grp5->event_tag;
3770         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3771         phba->sli4_hba.link_state.logical_speed =
3772                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3773         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3774                         "2789 GRP5 Async Event: Updating logical link speed "
3775                         "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3776                         (phba->sli4_hba.link_state.logical_speed*10));
3777 }
3778
3779 /**
3780  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3781  * @phba: pointer to lpfc hba data structure.
3782  *
3783  * This routine is invoked by the worker thread to process all the pending
3784  * SLI4 asynchronous events.
3785  **/
3786 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3787 {
3788         struct lpfc_cq_event *cq_event;
3789
3790         /* First, declare the async event has been handled */
3791         spin_lock_irq(&phba->hbalock);
3792         phba->hba_flag &= ~ASYNC_EVENT;
3793         spin_unlock_irq(&phba->hbalock);
3794         /* Now, handle all the async events */
3795         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3796                 /* Get the first event from the head of the event queue */
3797                 spin_lock_irq(&phba->hbalock);
3798                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3799                                  cq_event, struct lpfc_cq_event, list);
3800                 spin_unlock_irq(&phba->hbalock);
3801                 /* Process the asynchronous event */
3802                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3803                 case LPFC_TRAILER_CODE_LINK:
3804                         lpfc_sli4_async_link_evt(phba,
3805                                                  &cq_event->cqe.acqe_link);
3806                         break;
3807                 case LPFC_TRAILER_CODE_FCOE:
3808                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
3809                         break;
3810                 case LPFC_TRAILER_CODE_DCBX:
3811                         lpfc_sli4_async_dcbx_evt(phba,
3812                                                  &cq_event->cqe.acqe_dcbx);
3813                         break;
3814                 case LPFC_TRAILER_CODE_GRP5:
3815                         lpfc_sli4_async_grp5_evt(phba,
3816                                                  &cq_event->cqe.acqe_grp5);
3817                         break;
3818                 case LPFC_TRAILER_CODE_FC:
3819                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3820                         break;
3821                 case LPFC_TRAILER_CODE_SLI:
3822                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3823                         break;
3824                 default:
3825                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3826                                         "1804 Invalid asynchrous event code: "
3827                                         "x%x\n", bf_get(lpfc_trailer_code,
3828                                         &cq_event->cqe.mcqe_cmpl));
3829                         break;
3830                 }
3831                 /* Free the completion event processed to the free pool */
3832                 lpfc_sli4_cq_event_release(phba, cq_event);
3833         }
3834 }
3835
3836 /**
3837  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3838  * @phba: pointer to lpfc hba data structure.
3839  *
3840  * This routine is invoked by the worker thread to process FCF table
3841  * rediscovery pending completion event.
3842  **/
3843 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3844 {
3845         int rc;
3846
3847         spin_lock_irq(&phba->hbalock);
3848         /* Clear FCF rediscovery timeout event */
3849         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3850         /* Clear driver fast failover FCF record flag */
3851         phba->fcf.failover_rec.flag = 0;
3852         /* Set state for FCF fast failover */
3853         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3854         spin_unlock_irq(&phba->hbalock);
3855
3856         /* Scan FCF table from the first entry to re-discover SAN */
3857         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3858                         "2777 Start post-quiescent FCF table scan\n");
3859         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3860         if (rc)
3861                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3862                                 "2747 Issue FCF scan read FCF mailbox "
3863                                 "command failed 0x%x\n", rc);
3864 }
3865
3866 /**
3867  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3868  * @phba: pointer to lpfc hba data structure.
3869  * @dev_grp: The HBA PCI-Device group number.
3870  *
3871  * This routine is invoked to set up the per HBA PCI-Device group function
3872  * API jump table entries.
3873  *
3874  * Return: 0 if success, otherwise -ENODEV
3875  **/
3876 int
3877 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3878 {
3879         int rc;
3880
3881         /* Set up lpfc PCI-device group */
3882         phba->pci_dev_grp = dev_grp;
3883
3884         /* The LPFC_PCI_DEV_OC uses SLI4 */
3885         if (dev_grp == LPFC_PCI_DEV_OC)
3886                 phba->sli_rev = LPFC_SLI_REV4;
3887
3888         /* Set up device INIT API function jump table */
3889         rc = lpfc_init_api_table_setup(phba, dev_grp);
3890         if (rc)
3891                 return -ENODEV;
3892         /* Set up SCSI API function jump table */
3893         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3894         if (rc)
3895                 return -ENODEV;
3896         /* Set up SLI API function jump table */
3897         rc = lpfc_sli_api_table_setup(phba, dev_grp);
3898         if (rc)
3899                 return -ENODEV;
3900         /* Set up MBOX API function jump table */
3901         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3902         if (rc)
3903                 return -ENODEV;
3904
3905         return 0;
3906 }
3907
3908 /**
3909  * lpfc_log_intr_mode - Log the active interrupt mode
3910  * @phba: pointer to lpfc hba data structure.
3911  * @intr_mode: active interrupt mode adopted.
3912  *
3913  * This routine it invoked to log the currently used active interrupt mode
3914  * to the device.
3915  **/
3916 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3917 {
3918         switch (intr_mode) {
3919         case 0:
3920                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3921                                 "0470 Enable INTx interrupt mode.\n");
3922                 break;
3923         case 1:
3924                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3925                                 "0481 Enabled MSI interrupt mode.\n");
3926                 break;
3927         case 2:
3928                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3929                                 "0480 Enabled MSI-X interrupt mode.\n");
3930                 break;
3931         default:
3932                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3933                                 "0482 Illegal interrupt mode.\n");
3934                 break;
3935         }
3936         return;
3937 }
3938
3939 /**
3940  * lpfc_enable_pci_dev - Enable a generic PCI device.
3941  * @phba: pointer to lpfc hba data structure.
3942  *
3943  * This routine is invoked to enable the PCI device that is common to all
3944  * PCI devices.
3945  *
3946  * Return codes
3947  *      0 - successful
3948  *      other values - error
3949  **/
3950 static int
3951 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3952 {
3953         struct pci_dev *pdev;
3954         int bars;
3955
3956         /* Obtain PCI device reference */
3957         if (!phba->pcidev)
3958                 goto out_error;
3959         else
3960                 pdev = phba->pcidev;
3961         /* Select PCI BARs */
3962         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3963         /* Enable PCI device */
3964         if (pci_enable_device_mem(pdev))
3965                 goto out_error;
3966         /* Request PCI resource for the device */
3967         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3968                 goto out_disable_device;
3969         /* Set up device as PCI master and save state for EEH */
3970         pci_set_master(pdev);
3971         pci_try_set_mwi(pdev);
3972         pci_save_state(pdev);
3973
3974         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
3975         if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
3976                 pdev->needs_freset = 1;
3977
3978         return 0;
3979
3980 out_disable_device:
3981         pci_disable_device(pdev);
3982 out_error:
3983         return -ENODEV;
3984 }
3985
3986 /**
3987  * lpfc_disable_pci_dev - Disable a generic PCI device.
3988  * @phba: pointer to lpfc hba data structure.
3989  *
3990  * This routine is invoked to disable the PCI device that is common to all
3991  * PCI devices.
3992  **/
3993 static void
3994 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3995 {
3996         struct pci_dev *pdev;
3997         int bars;
3998
3999         /* Obtain PCI device reference */
4000         if (!phba->pcidev)
4001                 return;
4002         else
4003                 pdev = phba->pcidev;
4004         /* Select PCI BARs */
4005         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4006         /* Release PCI resource and disable PCI device */
4007         pci_release_selected_regions(pdev, bars);
4008         pci_disable_device(pdev);
4009         /* Null out PCI private reference to driver */
4010         pci_set_drvdata(pdev, NULL);
4011
4012         return;
4013 }
4014
4015 /**
4016  * lpfc_reset_hba - Reset a hba
4017  * @phba: pointer to lpfc hba data structure.
4018  *
4019  * This routine is invoked to reset a hba device. It brings the HBA
4020  * offline, performs a board restart, and then brings the board back
4021  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4022  * on outstanding mailbox commands.
4023  **/
4024 void
4025 lpfc_reset_hba(struct lpfc_hba *phba)
4026 {
4027         /* If resets are disabled then set error state and return. */
4028         if (!phba->cfg_enable_hba_reset) {
4029                 phba->link_state = LPFC_HBA_ERROR;
4030                 return;
4031         }
4032         lpfc_offline_prep(phba);
4033         lpfc_offline(phba);
4034         lpfc_sli_brdrestart(phba);
4035         lpfc_online(phba);
4036         lpfc_unblock_mgmt_io(phba);
4037 }
4038
4039 /**
4040  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4041  * @phba: pointer to lpfc hba data structure.
4042  * @nr_vfn: number of virtual functions to be enabled.
4043  *
4044  * This function enables the PCI SR-IOV virtual functions to a physical
4045  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4046  * enable the number of virtual functions to the physical function. As
4047  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4048  * API call does not considered as an error condition for most of the device.
4049  **/
4050 int
4051 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4052 {
4053         struct pci_dev *pdev = phba->pcidev;
4054         int rc;
4055
4056         rc = pci_enable_sriov(pdev, nr_vfn);
4057         if (rc) {
4058                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4059                                 "2806 Failed to enable sriov on this device "
4060                                 "with vfn number nr_vf:%d, rc:%d\n",
4061                                 nr_vfn, rc);
4062         } else
4063                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4064                                 "2807 Successful enable sriov on this device "
4065                                 "with vfn number nr_vf:%d\n", nr_vfn);
4066         return rc;
4067 }
4068
4069 /**
4070  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4071  * @phba: pointer to lpfc hba data structure.
4072  *
4073  * This routine is invoked to set up the driver internal resources specific to
4074  * support the SLI-3 HBA device it attached to.
4075  *
4076  * Return codes
4077  *      0 - successful
4078  *      other values - error
4079  **/
4080 static int
4081 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4082 {
4083         struct lpfc_sli *psli;
4084         int rc;
4085
4086         /*
4087          * Initialize timers used by driver
4088          */
4089
4090         /* Heartbeat timer */
4091         init_timer(&phba->hb_tmofunc);
4092         phba->hb_tmofunc.function = lpfc_hb_timeout;
4093         phba->hb_tmofunc.data = (unsigned long)phba;
4094
4095         psli = &phba->sli;
4096         /* MBOX heartbeat timer */
4097         init_timer(&psli->mbox_tmo);
4098         psli->mbox_tmo.function = lpfc_mbox_timeout;
4099         psli->mbox_tmo.data = (unsigned long) phba;
4100         /* FCP polling mode timer */
4101         init_timer(&phba->fcp_poll_timer);
4102         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4103         phba->fcp_poll_timer.data = (unsigned long) phba;
4104         /* Fabric block timer */
4105         init_timer(&phba->fabric_block_timer);
4106         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4107         phba->fabric_block_timer.data = (unsigned long) phba;
4108         /* EA polling mode timer */
4109         init_timer(&phba->eratt_poll);
4110         phba->eratt_poll.function = lpfc_poll_eratt;
4111         phba->eratt_poll.data = (unsigned long) phba;
4112
4113         /* Host attention work mask setup */
4114         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4115         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4116
4117         /* Get all the module params for configuring this host */
4118         lpfc_get_cfgparam(phba);
4119         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4120                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4121                 /* check for menlo minimum sg count */
4122                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4123                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4124         }
4125
4126         /*
4127          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4128          * used to create the sg_dma_buf_pool must be dynamically calculated.
4129          * 2 segments are added since the IOCB needs a command and response bde.
4130          */
4131         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4132                 sizeof(struct fcp_rsp) +
4133                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4134
4135         if (phba->cfg_enable_bg) {
4136                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4137                 phba->cfg_sg_dma_buf_size +=
4138                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4139         }
4140
4141         /* Also reinitialize the host templates with new values. */
4142         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4143         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4144
4145         phba->max_vpi = LPFC_MAX_VPI;
4146         /* This will be set to correct value after config_port mbox */
4147         phba->max_vports = 0;
4148
4149         /*
4150          * Initialize the SLI Layer to run with lpfc HBAs.
4151          */
4152         lpfc_sli_setup(phba);
4153         lpfc_sli_queue_setup(phba);
4154
4155         /* Allocate device driver memory */
4156         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4157                 return -ENOMEM;
4158
4159         /*
4160          * Enable sr-iov virtual functions if supported and configured
4161          * through the module parameter.
4162          */
4163         if (phba->cfg_sriov_nr_virtfn > 0) {
4164                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4165                                                  phba->cfg_sriov_nr_virtfn);
4166                 if (rc) {
4167                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4168                                         "2808 Requested number of SR-IOV "
4169                                         "virtual functions (%d) is not "
4170                                         "supported\n",
4171                                         phba->cfg_sriov_nr_virtfn);
4172                         phba->cfg_sriov_nr_virtfn = 0;
4173                 }
4174         }
4175
4176         return 0;
4177 }
4178
4179 /**
4180  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4181  * @phba: pointer to lpfc hba data structure.
4182  *
4183  * This routine is invoked to unset the driver internal resources set up
4184  * specific for supporting the SLI-3 HBA device it attached to.
4185  **/
4186 static void
4187 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4188 {
4189         /* Free device driver memory allocated */
4190         lpfc_mem_free_all(phba);
4191
4192         return;
4193 }
4194
4195 /**
4196  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4197  * @phba: pointer to lpfc hba data structure.
4198  *
4199  * This routine is invoked to set up the driver internal resources specific to
4200  * support the SLI-4 HBA device it attached to.
4201  *
4202  * Return codes
4203  *      0 - successful
4204  *      other values - error
4205  **/
4206 static int
4207 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4208 {
4209         struct lpfc_sli *psli;
4210         LPFC_MBOXQ_t *mboxq;
4211         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4212         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4213         struct lpfc_mqe *mqe;
4214         int longs, sli_family;
4215
4216         /* Before proceed, wait for POST done and device ready */
4217         rc = lpfc_sli4_post_status_check(phba);
4218         if (rc)
4219                 return -ENODEV;
4220
4221         /*
4222          * Initialize timers used by driver
4223          */
4224
4225         /* Heartbeat timer */
4226         init_timer(&phba->hb_tmofunc);
4227         phba->hb_tmofunc.function = lpfc_hb_timeout;
4228         phba->hb_tmofunc.data = (unsigned long)phba;
4229         init_timer(&phba->rrq_tmr);
4230         phba->rrq_tmr.function = lpfc_rrq_timeout;
4231         phba->rrq_tmr.data = (unsigned long)phba;
4232
4233         psli = &phba->sli;
4234         /* MBOX heartbeat timer */
4235         init_timer(&psli->mbox_tmo);
4236         psli->mbox_tmo.function = lpfc_mbox_timeout;
4237         psli->mbox_tmo.data = (unsigned long) phba;
4238         /* Fabric block timer */
4239         init_timer(&phba->fabric_block_timer);
4240         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4241         phba->fabric_block_timer.data = (unsigned long) phba;
4242         /* EA polling mode timer */
4243         init_timer(&phba->eratt_poll);
4244         phba->eratt_poll.function = lpfc_poll_eratt;
4245         phba->eratt_poll.data = (unsigned long) phba;
4246         /* FCF rediscover timer */
4247         init_timer(&phba->fcf.redisc_wait);
4248         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4249         phba->fcf.redisc_wait.data = (unsigned long)phba;
4250
4251         /*
4252          * Control structure for handling external multi-buffer mailbox
4253          * command pass-through.
4254          */
4255         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4256                 sizeof(struct lpfc_mbox_ext_buf_ctx));
4257         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4258
4259         /*
4260          * We need to do a READ_CONFIG mailbox command here before
4261          * calling lpfc_get_cfgparam. For VFs this will report the
4262          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4263          * All of the resources allocated
4264          * for this Port are tied to these values.
4265          */
4266         /* Get all the module params for configuring this host */
4267         lpfc_get_cfgparam(phba);
4268         phba->max_vpi = LPFC_MAX_VPI;
4269         /* This will be set to correct value after the read_config mbox */
4270         phba->max_vports = 0;
4271
4272         /* Program the default value of vlan_id and fc_map */
4273         phba->valid_vlan = 0;
4274         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4275         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4276         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4277
4278         /*
4279          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4280          * used to create the sg_dma_buf_pool must be dynamically calculated.
4281          * 2 segments are added since the IOCB needs a command and response bde.
4282          * To insure that the scsi sgl does not cross a 4k page boundary only
4283          * sgl sizes of must be a power of 2.
4284          */
4285         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4286                     ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4287
4288         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4289         max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4290         switch (sli_family) {
4291         case LPFC_SLI_INTF_FAMILY_BE2:
4292         case LPFC_SLI_INTF_FAMILY_BE3:
4293                 /* There is a single hint for BE - 2 pages per BPL. */
4294                 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4295                     LPFC_SLI_INTF_SLI_HINT1_1)
4296                         max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4297                 break;
4298         case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4299         case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4300         default:
4301                 break;
4302         }
4303         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4304              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4305              dma_buf_size = dma_buf_size << 1)
4306                 ;
4307         if (dma_buf_size == max_buf_size)
4308                 phba->cfg_sg_seg_cnt = (dma_buf_size -
4309                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4310                         (2 * sizeof(struct sli4_sge))) /
4311                                 sizeof(struct sli4_sge);
4312         phba->cfg_sg_dma_buf_size = dma_buf_size;
4313
4314         /* Initialize buffer queue management fields */
4315         hbq_count = lpfc_sli_hbq_count();
4316         for (i = 0; i < hbq_count; ++i)
4317                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4318         INIT_LIST_HEAD(&phba->rb_pend_list);
4319         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4320         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4321
4322         /*
4323          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4324          */
4325         /* Initialize the Abort scsi buffer list used by driver */
4326         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4327         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4328         /* This abort list used by worker thread */
4329         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4330
4331         /*
4332          * Initialize driver internal slow-path work queues
4333          */
4334
4335         /* Driver internel slow-path CQ Event pool */
4336         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4337         /* Response IOCB work queue list */
4338         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4339         /* Asynchronous event CQ Event work queue list */
4340         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4341         /* Fast-path XRI aborted CQ Event work queue list */
4342         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4343         /* Slow-path XRI aborted CQ Event work queue list */
4344         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4345         /* Receive queue CQ Event work queue list */
4346         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4347
4348         /* Initialize extent block lists. */
4349         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4350         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4351         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4352         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4353
4354         /* Initialize the driver internal SLI layer lists. */
4355         lpfc_sli_setup(phba);
4356         lpfc_sli_queue_setup(phba);
4357
4358         /* Allocate device driver memory */
4359         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4360         if (rc)
4361                 return -ENOMEM;
4362
4363         /* IF Type 2 ports get initialized now. */
4364         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4365             LPFC_SLI_INTF_IF_TYPE_2) {
4366                 rc = lpfc_pci_function_reset(phba);
4367                 if (unlikely(rc))
4368                         return -ENODEV;
4369         }
4370
4371         /* Create the bootstrap mailbox command */
4372         rc = lpfc_create_bootstrap_mbox(phba);
4373         if (unlikely(rc))
4374                 goto out_free_mem;
4375
4376         /* Set up the host's endian order with the device. */
4377         rc = lpfc_setup_endian_order(phba);
4378         if (unlikely(rc))
4379                 goto out_free_bsmbx;
4380
4381         /* Set up the hba's configuration parameters. */
4382         rc = lpfc_sli4_read_config(phba);
4383         if (unlikely(rc))
4384                 goto out_free_bsmbx;
4385
4386         /* IF Type 0 ports get initialized now. */
4387         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4388             LPFC_SLI_INTF_IF_TYPE_0) {
4389                 rc = lpfc_pci_function_reset(phba);
4390                 if (unlikely(rc))
4391                         goto out_free_bsmbx;
4392         }
4393
4394         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4395                                                        GFP_KERNEL);
4396         if (!mboxq) {
4397                 rc = -ENOMEM;
4398                 goto out_free_bsmbx;
4399         }
4400
4401         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4402         lpfc_supported_pages(mboxq);
4403         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4404         if (!rc) {
4405                 mqe = &mboxq->u.mqe;
4406                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4407                        LPFC_MAX_SUPPORTED_PAGES);
4408                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4409                         switch (pn_page[i]) {
4410                         case LPFC_SLI4_PARAMETERS:
4411                                 phba->sli4_hba.pc_sli4_params.supported = 1;
4412                                 break;
4413                         default:
4414                                 break;
4415                         }
4416                 }
4417                 /* Read the port's SLI4 Parameters capabilities if supported. */
4418                 if (phba->sli4_hba.pc_sli4_params.supported)
4419                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
4420                 if (rc) {
4421                         mempool_free(mboxq, phba->mbox_mem_pool);
4422                         rc = -EIO;
4423                         goto out_free_bsmbx;
4424                 }
4425         }
4426         /*
4427          * Get sli4 parameters that override parameters from Port capabilities.
4428          * If this call fails, it isn't critical unless the SLI4 parameters come
4429          * back in conflict.
4430          */
4431         rc = lpfc_get_sli4_parameters(phba, mboxq);
4432         if (rc) {
4433                 if (phba->sli4_hba.extents_in_use &&
4434                     phba->sli4_hba.rpi_hdrs_in_use) {
4435                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4436                                 "2999 Unsupported SLI4 Parameters "
4437                                 "Extents and RPI headers enabled.\n");
4438                         goto out_free_bsmbx;
4439                 }
4440         }
4441         mempool_free(mboxq, phba->mbox_mem_pool);
4442         /* Create all the SLI4 queues */
4443         rc = lpfc_sli4_queue_create(phba);
4444         if (rc)
4445                 goto out_free_bsmbx;
4446
4447         /* Create driver internal CQE event pool */
4448         rc = lpfc_sli4_cq_event_pool_create(phba);
4449         if (rc)
4450                 goto out_destroy_queue;
4451
4452         /* Initialize and populate the iocb list per host */
4453         rc = lpfc_init_sgl_list(phba);
4454         if (rc) {
4455                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4456                                 "1400 Failed to initialize sgl list.\n");
4457                 goto out_destroy_cq_event_pool;
4458         }
4459         rc = lpfc_init_active_sgl_array(phba);
4460         if (rc) {
4461                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4462                                 "1430 Failed to initialize sgl list.\n");
4463                 goto out_free_sgl_list;
4464         }
4465         rc = lpfc_sli4_init_rpi_hdrs(phba);
4466         if (rc) {
4467                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4468                                 "1432 Failed to initialize rpi headers.\n");
4469                 goto out_free_active_sgl;
4470         }
4471
4472         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4473         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4474         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4475                                          GFP_KERNEL);
4476         if (!phba->fcf.fcf_rr_bmask) {
4477                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4478                                 "2759 Failed allocate memory for FCF round "
4479                                 "robin failover bmask\n");
4480                 rc = -ENOMEM;
4481                 goto out_remove_rpi_hdrs;
4482         }
4483
4484         phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4485                                     phba->cfg_fcp_eq_count), GFP_KERNEL);
4486         if (!phba->sli4_hba.fcp_eq_hdl) {
4487                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4488                                 "2572 Failed allocate memory for fast-path "
4489                                 "per-EQ handle array\n");
4490                 rc = -ENOMEM;
4491                 goto out_free_fcf_rr_bmask;
4492         }
4493
4494         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4495                                       phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4496         if (!phba->sli4_hba.msix_entries) {
4497                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4498                                 "2573 Failed allocate memory for msi-x "
4499                                 "interrupt vector entries\n");
4500                 rc = -ENOMEM;
4501                 goto out_free_fcp_eq_hdl;
4502         }
4503
4504         /*
4505          * Enable sr-iov virtual functions if supported and configured
4506          * through the module parameter.
4507          */
4508         if (phba->cfg_sriov_nr_virtfn > 0) {
4509                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4510                                                  phba->cfg_sriov_nr_virtfn);
4511                 if (rc) {
4512                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4513                                         "3020 Requested number of SR-IOV "
4514                                         "virtual functions (%d) is not "
4515                                         "supported\n",
4516                                         phba->cfg_sriov_nr_virtfn);
4517                         phba->cfg_sriov_nr_virtfn = 0;
4518                 }
4519         }
4520
4521         return rc;
4522
4523 out_free_fcp_eq_hdl:
4524         kfree(phba->sli4_hba.fcp_eq_hdl);
4525 out_free_fcf_rr_bmask:
4526         kfree(phba->fcf.fcf_rr_bmask);
4527 out_remove_rpi_hdrs:
4528         lpfc_sli4_remove_rpi_hdrs(phba);
4529 out_free_active_sgl:
4530         lpfc_free_active_sgl(phba);
4531 out_free_sgl_list:
4532         lpfc_free_sgl_list(phba);
4533 out_destroy_cq_event_pool:
4534         lpfc_sli4_cq_event_pool_destroy(phba);
4535 out_destroy_queue:
4536         lpfc_sli4_queue_destroy(phba);
4537 out_free_bsmbx:
4538         lpfc_destroy_bootstrap_mbox(phba);
4539 out_free_mem:
4540         lpfc_mem_free(phba);
4541         return rc;
4542 }
4543
4544 /**
4545  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4546  * @phba: pointer to lpfc hba data structure.
4547  *
4548  * This routine is invoked to unset the driver internal resources set up
4549  * specific for supporting the SLI-4 HBA device it attached to.
4550  **/
4551 static void
4552 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4553 {
4554         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4555
4556         /* Free memory allocated for msi-x interrupt vector entries */
4557         kfree(phba->sli4_hba.msix_entries);
4558
4559         /* Free memory allocated for fast-path work queue handles */
4560         kfree(phba->sli4_hba.fcp_eq_hdl);
4561
4562         /* Free the allocated rpi headers. */
4563         lpfc_sli4_remove_rpi_hdrs(phba);
4564         lpfc_sli4_remove_rpis(phba);
4565
4566         /* Free eligible FCF index bmask */
4567         kfree(phba->fcf.fcf_rr_bmask);
4568
4569         /* Free the ELS sgl list */
4570         lpfc_free_active_sgl(phba);
4571         lpfc_free_sgl_list(phba);
4572
4573         /* Free the SCSI sgl management array */
4574         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4575
4576         /* Free the SLI4 queues */
4577         lpfc_sli4_queue_destroy(phba);
4578
4579         /* Free the completion queue EQ event pool */
4580         lpfc_sli4_cq_event_release_all(phba);
4581         lpfc_sli4_cq_event_pool_destroy(phba);
4582
4583         /* Release resource identifiers. */
4584         lpfc_sli4_dealloc_resource_identifiers(phba);
4585
4586         /* Free the bsmbx region. */
4587         lpfc_destroy_bootstrap_mbox(phba);
4588
4589         /* Free the SLI Layer memory with SLI4 HBAs */
4590         lpfc_mem_free_all(phba);
4591
4592         /* Free the current connect table */
4593         list_for_each_entry_safe(conn_entry, next_conn_entry,
4594                 &phba->fcf_conn_rec_list, list) {
4595                 list_del_init(&conn_entry->list);
4596                 kfree(conn_entry);
4597         }
4598
4599         return;
4600 }
4601
4602 /**
4603  * lpfc_init_api_table_setup - Set up init api function jump table
4604  * @phba: The hba struct for which this call is being executed.
4605  * @dev_grp: The HBA PCI-Device group number.
4606  *
4607  * This routine sets up the device INIT interface API function jump table
4608  * in @phba struct.
4609  *
4610  * Returns: 0 - success, -ENODEV - failure.
4611  **/
4612 int
4613 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4614 {
4615         phba->lpfc_hba_init_link = lpfc_hba_init_link;
4616         phba->lpfc_hba_down_link = lpfc_hba_down_link;
4617         phba->lpfc_selective_reset = lpfc_selective_reset;
4618         switch (dev_grp) {
4619         case LPFC_PCI_DEV_LP:
4620                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4621                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4622                 phba->lpfc_stop_port = lpfc_stop_port_s3;
4623                 break;
4624         case LPFC_PCI_DEV_OC:
4625                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4626                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4627                 phba->lpfc_stop_port = lpfc_stop_port_s4;
4628                 break;
4629         default:
4630                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4631                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
4632                                 dev_grp);
4633                 return -ENODEV;
4634                 break;
4635         }
4636         return 0;
4637 }
4638
4639 /**
4640  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4641  * @phba: pointer to lpfc hba data structure.
4642  *
4643  * This routine is invoked to set up the driver internal resources before the
4644  * device specific resource setup to support the HBA device it attached to.
4645  *
4646  * Return codes
4647  *      0 - successful
4648  *      other values - error
4649  **/
4650 static int
4651 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4652 {
4653         /*
4654          * Driver resources common to all SLI revisions
4655          */
4656         atomic_set(&phba->fast_event_count, 0);
4657         spin_lock_init(&phba->hbalock);
4658
4659         /* Initialize ndlp management spinlock */
4660         spin_lock_init(&phba->ndlp_lock);
4661
4662         INIT_LIST_HEAD(&phba->port_list);
4663         INIT_LIST_HEAD(&phba->work_list);
4664         init_waitqueue_head(&phba->wait_4_mlo_m_q);
4665
4666         /* Initialize the wait queue head for the kernel thread */
4667         init_waitqueue_head(&phba->work_waitq);
4668
4669         /* Initialize the scsi buffer list used by driver for scsi IO */
4670         spin_lock_init(&phba->scsi_buf_list_lock);
4671         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4672
4673         /* Initialize the fabric iocb list */
4674         INIT_LIST_HEAD(&phba->fabric_iocb_list);
4675
4676         /* Initialize list to save ELS buffers */
4677         INIT_LIST_HEAD(&phba->elsbuf);
4678
4679         /* Initialize FCF connection rec list */
4680         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4681
4682         return 0;
4683 }
4684
4685 /**
4686  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4687  * @phba: pointer to lpfc hba data structure.
4688  *
4689  * This routine is invoked to set up the driver internal resources after the
4690  * device specific resource setup to support the HBA device it attached to.
4691  *
4692  * Return codes
4693  *      0 - successful
4694  *      other values - error
4695  **/
4696 static int
4697 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4698 {
4699         int error;
4700
4701         /* Startup the kernel thread for this host adapter. */
4702         phba->worker_thread = kthread_run(lpfc_do_work, phba,
4703                                           "lpfc_worker_%d", phba->brd_no);
4704         if (IS_ERR(phba->worker_thread)) {
4705                 error = PTR_ERR(phba->worker_thread);
4706                 return error;
4707         }
4708
4709         return 0;
4710 }
4711
4712 /**
4713  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4714  * @phba: pointer to lpfc hba data structure.
4715  *
4716  * This routine is invoked to unset the driver internal resources set up after
4717  * the device specific resource setup for supporting the HBA device it
4718  * attached to.
4719  **/
4720 static void
4721 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4722 {
4723         /* Stop kernel worker thread */
4724         kthread_stop(phba->worker_thread);
4725 }
4726
4727 /**
4728  * lpfc_free_iocb_list - Free iocb list.
4729  * @phba: pointer to lpfc hba data structure.
4730  *
4731  * This routine is invoked to free the driver's IOCB list and memory.
4732  **/
4733 static void
4734 lpfc_free_iocb_list(struct lpfc_hba *phba)
4735 {
4736         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4737
4738         spin_lock_irq(&phba->hbalock);
4739         list_for_each_entry_safe(iocbq_entry, iocbq_next,
4740                                  &phba->lpfc_iocb_list, list) {
4741                 list_del(&iocbq_entry->list);
4742                 kfree(iocbq_entry);
4743                 phba->total_iocbq_bufs--;
4744         }
4745         spin_unlock_irq(&phba->hbalock);
4746
4747         return;
4748 }
4749
4750 /**
4751  * lpfc_init_iocb_list - Allocate and initialize iocb list.
4752  * @phba: pointer to lpfc hba data structure.
4753  *
4754  * This routine is invoked to allocate and initizlize the driver's IOCB
4755  * list and set up the IOCB tag array accordingly.
4756  *
4757  * Return codes
4758  *      0 - successful
4759  *      other values - error
4760  **/
4761 static int
4762 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4763 {
4764         struct lpfc_iocbq *iocbq_entry = NULL;
4765         uint16_t iotag;
4766         int i;
4767
4768         /* Initialize and populate the iocb list per host.  */
4769         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4770         for (i = 0; i < iocb_count; i++) {
4771                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4772                 if (iocbq_entry == NULL) {
4773                         printk(KERN_ERR "%s: only allocated %d iocbs of "
4774                                 "expected %d count. Unloading driver.\n",
4775                                 __func__, i, LPFC_IOCB_LIST_CNT);
4776                         goto out_free_iocbq;
4777                 }
4778
4779                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4780                 if (iotag == 0) {
4781                         kfree(iocbq_entry);
4782                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
4783                                 "Unloading driver.\n", __func__);
4784                         goto out_free_iocbq;
4785                 }
4786                 iocbq_entry->sli4_lxritag = NO_XRI;
4787                 iocbq_entry->sli4_xritag = NO_XRI;
4788
4789                 spin_lock_irq(&phba->hbalock);
4790                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4791                 phba->total_iocbq_bufs++;
4792                 spin_unlock_irq(&phba->hbalock);
4793         }
4794
4795         return 0;
4796
4797 out_free_iocbq:
4798         lpfc_free_iocb_list(phba);
4799
4800         return -ENOMEM;
4801 }
4802
4803 /**
4804  * lpfc_free_sgl_list - Free sgl list.
4805  * @phba: pointer to lpfc hba data structure.
4806  *
4807  * This routine is invoked to free the driver's sgl list and memory.
4808  **/
4809 static void
4810 lpfc_free_sgl_list(struct lpfc_hba *phba)
4811 {
4812         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4813         LIST_HEAD(sglq_list);
4814
4815         spin_lock_irq(&phba->hbalock);
4816         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4817         spin_unlock_irq(&phba->hbalock);
4818
4819         list_for_each_entry_safe(sglq_entry, sglq_next,
4820                                  &sglq_list, list) {
4821                 list_del(&sglq_entry->list);
4822                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4823                 kfree(sglq_entry);
4824                 phba->sli4_hba.total_sglq_bufs--;
4825         }
4826         kfree(phba->sli4_hba.lpfc_els_sgl_array);
4827 }
4828
4829 /**
4830  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4831  * @phba: pointer to lpfc hba data structure.
4832  *
4833  * This routine is invoked to allocate the driver's active sgl memory.
4834  * This array will hold the sglq_entry's for active IOs.
4835  **/
4836 static int
4837 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4838 {
4839         int size;
4840         size = sizeof(struct lpfc_sglq *);
4841         size *= phba->sli4_hba.max_cfg_param.max_xri;
4842
4843         phba->sli4_hba.lpfc_sglq_active_list =
4844                 kzalloc(size, GFP_KERNEL);
4845         if (!phba->sli4_hba.lpfc_sglq_active_list)
4846                 return -ENOMEM;
4847         return 0;
4848 }
4849
4850 /**
4851  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4852  * @phba: pointer to lpfc hba data structure.
4853  *
4854  * This routine is invoked to walk through the array of active sglq entries
4855  * and free all of the resources.
4856  * This is just a place holder for now.
4857  **/
4858 static void
4859 lpfc_free_active_sgl(struct lpfc_hba *phba)
4860 {
4861         kfree(phba->sli4_hba.lpfc_sglq_active_list);
4862 }
4863
4864 /**
4865  * lpfc_init_sgl_list - Allocate and initialize sgl list.
4866  * @phba: pointer to lpfc hba data structure.
4867  *
4868  * This routine is invoked to allocate and initizlize the driver's sgl
4869  * list and set up the sgl xritag tag array accordingly.
4870  *
4871  * Return codes
4872  *      0 - successful
4873  *      other values - error
4874  **/
4875 static int
4876 lpfc_init_sgl_list(struct lpfc_hba *phba)
4877 {
4878         struct lpfc_sglq *sglq_entry = NULL;
4879         int i;
4880         int els_xri_cnt;
4881
4882         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4883         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4884                                 "2400 ELS XRI count %d.\n",
4885                                 els_xri_cnt);
4886         /* Initialize and populate the sglq list per host/VF. */
4887         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4888         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4889
4890         /* Sanity check on XRI management */
4891         if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4892                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4893                                 "2562 No room left for SCSI XRI allocation: "
4894                                 "max_xri=%d, els_xri=%d\n",
4895                                 phba->sli4_hba.max_cfg_param.max_xri,
4896                                 els_xri_cnt);
4897                 return -ENOMEM;
4898         }
4899
4900         /* Allocate memory for the ELS XRI management array */
4901         phba->sli4_hba.lpfc_els_sgl_array =
4902                         kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4903                         GFP_KERNEL);
4904
4905         if (!phba->sli4_hba.lpfc_els_sgl_array) {
4906                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4907                                 "2401 Failed to allocate memory for ELS "
4908                                 "XRI management array of size %d.\n",
4909                                 els_xri_cnt);
4910                 return -ENOMEM;
4911         }
4912
4913         /* Keep the SCSI XRI into the XRI management array */
4914         phba->sli4_hba.scsi_xri_max =
4915                         phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4916         phba->sli4_hba.scsi_xri_cnt = 0;
4917         phba->sli4_hba.lpfc_scsi_psb_array =
4918                         kzalloc((sizeof(struct lpfc_scsi_buf *) *
4919                         phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4920
4921         if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4922                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4923                                 "2563 Failed to allocate memory for SCSI "
4924                                 "XRI management array of size %d.\n",
4925                                 phba->sli4_hba.scsi_xri_max);
4926                 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4927                 return -ENOMEM;
4928         }
4929
4930         for (i = 0; i < els_xri_cnt; i++) {
4931                 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4932                 if (sglq_entry == NULL) {
4933                         printk(KERN_ERR "%s: only allocated %d sgls of "
4934                                 "expected %d count. Unloading driver.\n",
4935                                 __func__, i, els_xri_cnt);
4936                         goto out_free_mem;
4937                 }
4938
4939                 sglq_entry->buff_type = GEN_BUFF_TYPE;
4940                 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4941                 if (sglq_entry->virt == NULL) {
4942                         kfree(sglq_entry);
4943                         printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4944                                 "Unloading driver.\n", __func__);
4945                         goto out_free_mem;
4946                 }
4947                 sglq_entry->sgl = sglq_entry->virt;
4948                 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4949
4950                 /* The list order is used by later block SGL registraton */
4951                 spin_lock_irq(&phba->hbalock);
4952                 sglq_entry->state = SGL_FREED;
4953                 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4954                 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4955                 phba->sli4_hba.total_sglq_bufs++;
4956                 spin_unlock_irq(&phba->hbalock);
4957         }
4958         return 0;
4959
4960 out_free_mem:
4961         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4962         lpfc_free_sgl_list(phba);
4963         return -ENOMEM;
4964 }
4965
4966 /**
4967  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4968  * @phba: pointer to lpfc hba data structure.
4969  *
4970  * This routine is invoked to post rpi header templates to the
4971  * port for those SLI4 ports that do not support extents.  This routine
4972  * posts a PAGE_SIZE memory region to the port to hold up to
4973  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
4974  * and should be called only when interrupts are disabled.
4975  *
4976  * Return codes
4977  *      0 - successful
4978  *      -ERROR - otherwise.
4979  **/
4980 int
4981 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4982 {
4983         int rc = 0;
4984         struct lpfc_rpi_hdr *rpi_hdr;
4985
4986         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4987         /*
4988          * If the SLI4 port supports extents, posting the rpi header isn't
4989          * required.  Set the expected maximum count and let the actual value
4990          * get set when extents are fully allocated.
4991          */
4992         if (!phba->sli4_hba.rpi_hdrs_in_use) {
4993                 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
4994                 return rc;
4995         }
4996         if (phba->sli4_hba.extents_in_use)
4997                 return -EIO;
4998
4999         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5000         if (!rpi_hdr) {
5001                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5002                                 "0391 Error during rpi post operation\n");
5003                 lpfc_sli4_remove_rpis(phba);
5004                 rc = -ENODEV;
5005         }
5006
5007         return rc;
5008 }
5009
5010 /**
5011  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5012  * @phba: pointer to lpfc hba data structure.
5013  *
5014  * This routine is invoked to allocate a single 4KB memory region to
5015  * support rpis and stores them in the phba.  This single region
5016  * provides support for up to 64 rpis.  The region is used globally
5017  * by the device.
5018  *
5019  * Returns:
5020  *   A valid rpi hdr on success.
5021  *   A NULL pointer on any failure.
5022  **/
5023 struct lpfc_rpi_hdr *
5024 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5025 {
5026         uint16_t rpi_limit, curr_rpi_range;
5027         struct lpfc_dmabuf *dmabuf;
5028         struct lpfc_rpi_hdr *rpi_hdr;
5029         uint32_t rpi_count;
5030
5031         /*
5032          * If the SLI4 port supports extents, posting the rpi header isn't
5033          * required.  Set the expected maximum count and let the actual value
5034          * get set when extents are fully allocated.
5035          */
5036         if (!phba->sli4_hba.rpi_hdrs_in_use)
5037                 return NULL;
5038         if (phba->sli4_hba.extents_in_use)
5039                 return NULL;
5040
5041         /* The limit on the logical index is just the max_rpi count. */
5042         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5043         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5044
5045         spin_lock_irq(&phba->hbalock);
5046         /*
5047          * Establish the starting RPI in this header block.  The starting
5048          * rpi is normalized to a zero base because the physical rpi is
5049          * port based.
5050          */
5051         curr_rpi_range = phba->sli4_hba.next_rpi -
5052                 phba->sli4_hba.max_cfg_param.rpi_base;
5053         spin_unlock_irq(&phba->hbalock);
5054
5055         /*
5056          * The port has a limited number of rpis. The increment here
5057          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5058          * and to allow the full max_rpi range per port.
5059          */
5060         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5061                 rpi_count = rpi_limit - curr_rpi_range;
5062         else
5063                 rpi_count = LPFC_RPI_HDR_COUNT;
5064
5065         if (!rpi_count)
5066                 return NULL;
5067         /*
5068          * First allocate the protocol header region for the port.  The
5069          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5070          */
5071         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5072         if (!dmabuf)
5073                 return NULL;
5074
5075         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5076                                           LPFC_HDR_TEMPLATE_SIZE,
5077                                           &dmabuf->phys,
5078                                           GFP_KERNEL);
5079         if (!dmabuf->virt) {
5080                 rpi_hdr = NULL;
5081                 goto err_free_dmabuf;
5082         }
5083
5084         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5085         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5086                 rpi_hdr = NULL;
5087                 goto err_free_coherent;
5088         }
5089
5090         /* Save the rpi header data for cleanup later. */
5091         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5092         if (!rpi_hdr)
5093                 goto err_free_coherent;
5094
5095         rpi_hdr->dmabuf = dmabuf;
5096         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5097         rpi_hdr->page_count = 1;
5098         spin_lock_irq(&phba->hbalock);
5099
5100         /* The rpi_hdr stores the logical index only. */
5101         rpi_hdr->start_rpi = curr_rpi_range;
5102         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5103
5104         /*
5105          * The next_rpi stores the next logical module-64 rpi value used
5106          * to post physical rpis in subsequent rpi postings.
5107          */
5108         phba->sli4_hba.next_rpi += rpi_count;
5109         spin_unlock_irq(&phba->hbalock);
5110         return rpi_hdr;
5111
5112  err_free_coherent:
5113         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5114                           dmabuf->virt, dmabuf->phys);
5115  err_free_dmabuf:
5116         kfree(dmabuf);
5117         return NULL;
5118 }
5119
5120 /**
5121  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5122  * @phba: pointer to lpfc hba data structure.
5123  *
5124  * This routine is invoked to remove all memory resources allocated
5125  * to support rpis for SLI4 ports not supporting extents. This routine
5126  * presumes the caller has released all rpis consumed by fabric or port
5127  * logins and is prepared to have the header pages removed.
5128  **/
5129 void
5130 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5131 {
5132         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5133
5134         if (!phba->sli4_hba.rpi_hdrs_in_use)
5135                 goto exit;
5136
5137         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5138                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5139                 list_del(&rpi_hdr->list);
5140                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5141                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5142                 kfree(rpi_hdr->dmabuf);
5143                 kfree(rpi_hdr);
5144         }
5145  exit:
5146         /* There are no rpis available to the port now. */
5147         phba->sli4_hba.next_rpi = 0;
5148 }
5149
5150 /**
5151  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5152  * @pdev: pointer to pci device data structure.
5153  *
5154  * This routine is invoked to allocate the driver hba data structure for an
5155  * HBA device. If the allocation is successful, the phba reference to the
5156  * PCI device data structure is set.
5157  *
5158  * Return codes
5159  *      pointer to @phba - successful
5160  *      NULL - error
5161  **/
5162 static struct lpfc_hba *
5163 lpfc_hba_alloc(struct pci_dev *pdev)
5164 {
5165         struct lpfc_hba *phba;
5166
5167         /* Allocate memory for HBA structure */
5168         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5169         if (!phba) {
5170                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5171                 return NULL;
5172         }
5173
5174         /* Set reference to PCI device in HBA structure */
5175         phba->pcidev = pdev;
5176
5177         /* Assign an unused board number */
5178         phba->brd_no = lpfc_get_instance();
5179         if (phba->brd_no < 0) {
5180                 kfree(phba);
5181                 return NULL;
5182         }
5183
5184         spin_lock_init(&phba->ct_ev_lock);
5185         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5186
5187         return phba;
5188 }
5189
5190 /**
5191  * lpfc_hba_free - Free driver hba data structure with a device.
5192  * @phba: pointer to lpfc hba data structure.
5193  *
5194  * This routine is invoked to free the driver hba data structure with an
5195  * HBA device.
5196  **/
5197 static void
5198 lpfc_hba_free(struct lpfc_hba *phba)
5199 {
5200         /* Release the driver assigned board number */
5201         idr_remove(&lpfc_hba_index, phba->brd_no);
5202
5203         kfree(phba);
5204         return;
5205 }
5206
5207 /**
5208  * lpfc_create_shost - Create hba physical port with associated scsi host.
5209  * @phba: pointer to lpfc hba data structure.
5210  *
5211  * This routine is invoked to create HBA physical port and associate a SCSI
5212  * host with it.
5213  *
5214  * Return codes
5215  *      0 - successful
5216  *      other values - error
5217  **/
5218 static int
5219 lpfc_create_shost(struct lpfc_hba *phba)
5220 {
5221         struct lpfc_vport *vport;
5222         struct Scsi_Host  *shost;
5223
5224         /* Initialize HBA FC structure */
5225         phba->fc_edtov = FF_DEF_EDTOV;
5226         phba->fc_ratov = FF_DEF_RATOV;
5227         phba->fc_altov = FF_DEF_ALTOV;
5228         phba->fc_arbtov = FF_DEF_ARBTOV;
5229
5230         atomic_set(&phba->sdev_cnt, 0);
5231         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5232         if (!vport)
5233                 return -ENODEV;
5234
5235         shost = lpfc_shost_from_vport(vport);
5236         phba->pport = vport;
5237         lpfc_debugfs_initialize(vport);
5238         /* Put reference to SCSI host to driver's device private data */
5239         pci_set_drvdata(phba->pcidev, shost);
5240
5241         return 0;
5242 }
5243
5244 /**
5245  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5246  * @phba: pointer to lpfc hba data structure.
5247  *
5248  * This routine is invoked to destroy HBA physical port and the associated
5249  * SCSI host.
5250  **/
5251 static void
5252 lpfc_destroy_shost(struct lpfc_hba *phba)
5253 {
5254         struct lpfc_vport *vport = phba->pport;
5255
5256         /* Destroy physical port that associated with the SCSI host */
5257         destroy_port(vport);
5258
5259         return;
5260 }
5261
5262 /**
5263  * lpfc_setup_bg - Setup Block guard structures and debug areas.
5264  * @phba: pointer to lpfc hba data structure.
5265  * @shost: the shost to be used to detect Block guard settings.
5266  *
5267  * This routine sets up the local Block guard protocol settings for @shost.
5268  * This routine also allocates memory for debugging bg buffers.
5269  **/
5270 static void
5271 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5272 {
5273         int pagecnt = 10;
5274         if (lpfc_prot_mask && lpfc_prot_guard) {
5275                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5276                                 "1478 Registering BlockGuard with the "
5277                                 "SCSI layer\n");
5278                 scsi_host_set_prot(shost, lpfc_prot_mask);
5279                 scsi_host_set_guard(shost, lpfc_prot_guard);
5280         }
5281         if (!_dump_buf_data) {
5282                 while (pagecnt) {
5283                         spin_lock_init(&_dump_buf_lock);
5284                         _dump_buf_data =
5285                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5286                         if (_dump_buf_data) {
5287                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5288                                         "9043 BLKGRD: allocated %d pages for "
5289                                        "_dump_buf_data at 0x%p\n",
5290                                        (1 << pagecnt), _dump_buf_data);
5291                                 _dump_buf_data_order = pagecnt;
5292                                 memset(_dump_buf_data, 0,
5293                                        ((1 << PAGE_SHIFT) << pagecnt));
5294                                 break;
5295                         } else
5296                                 --pagecnt;
5297                 }
5298                 if (!_dump_buf_data_order)
5299                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5300                                 "9044 BLKGRD: ERROR unable to allocate "
5301                                "memory for hexdump\n");
5302         } else
5303                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5304                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5305                        "\n", _dump_buf_data);
5306         if (!_dump_buf_dif) {
5307                 while (pagecnt) {
5308                         _dump_buf_dif =
5309                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5310                         if (_dump_buf_dif) {
5311                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5312                                         "9046 BLKGRD: allocated %d pages for "
5313                                        "_dump_buf_dif at 0x%p\n",
5314                                        (1 << pagecnt), _dump_buf_dif);
5315                                 _dump_buf_dif_order = pagecnt;
5316                                 memset(_dump_buf_dif, 0,
5317                                        ((1 << PAGE_SHIFT) << pagecnt));
5318                                 break;
5319                         } else
5320                                 --pagecnt;
5321                 }
5322                 if (!_dump_buf_dif_order)
5323                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5324                         "9047 BLKGRD: ERROR unable to allocate "
5325                                "memory for hexdump\n");
5326         } else
5327                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5328                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5329                        _dump_buf_dif);
5330 }
5331
5332 /**
5333  * lpfc_post_init_setup - Perform necessary device post initialization setup.
5334  * @phba: pointer to lpfc hba data structure.
5335  *
5336  * This routine is invoked to perform all the necessary post initialization
5337  * setup for the device.
5338  **/
5339 static void
5340 lpfc_post_init_setup(struct lpfc_hba *phba)
5341 {
5342         struct Scsi_Host  *shost;
5343         struct lpfc_adapter_event_header adapter_event;
5344
5345         /* Get the default values for Model Name and Description */
5346         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5347
5348         /*
5349          * hba setup may have changed the hba_queue_depth so we need to
5350          * adjust the value of can_queue.
5351          */
5352         shost = pci_get_drvdata(phba->pcidev);
5353         shost->can_queue = phba->cfg_hba_queue_depth - 10;
5354         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5355                 lpfc_setup_bg(phba, shost);
5356
5357         lpfc_host_attrib_init(shost);
5358
5359         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5360                 spin_lock_irq(shost->host_lock);
5361                 lpfc_poll_start_timer(phba);
5362                 spin_unlock_irq(shost->host_lock);
5363         }
5364
5365         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5366                         "0428 Perform SCSI scan\n");
5367         /* Send board arrival event to upper layer */
5368         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5369         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5370         fc_host_post_vendor_event(shost, fc_get_event_number(),
5371                                   sizeof(adapter_event),
5372                                   (char *) &adapter_event,
5373                                   LPFC_NL_VENDOR_ID);
5374         return;
5375 }
5376
5377 /**
5378  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5379  * @phba: pointer to lpfc hba data structure.
5380  *
5381  * This routine is invoked to set up the PCI device memory space for device
5382  * with SLI-3 interface spec.
5383  *
5384  * Return codes
5385  *      0 - successful
5386  *      other values - error
5387  **/
5388 static int
5389 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5390 {
5391         struct pci_dev *pdev;
5392         unsigned long bar0map_len, bar2map_len;
5393         int i, hbq_count;
5394         void *ptr;
5395         int error = -ENODEV;
5396
5397         /* Obtain PCI device reference */
5398         if (!phba->pcidev)
5399                 return error;
5400         else
5401                 pdev = phba->pcidev;
5402
5403         /* Set the device DMA mask size */
5404         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5405          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5406                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5407                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5408                         return error;
5409                 }
5410         }
5411
5412         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5413          * required by each mapping.
5414          */
5415         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5416         bar0map_len = pci_resource_len(pdev, 0);
5417
5418         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5419         bar2map_len = pci_resource_len(pdev, 2);
5420
5421         /* Map HBA SLIM to a kernel virtual address. */
5422         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5423         if (!phba->slim_memmap_p) {
5424                 dev_printk(KERN_ERR, &pdev->dev,
5425                            "ioremap failed for SLIM memory.\n");
5426                 goto out;
5427         }
5428
5429         /* Map HBA Control Registers to a kernel virtual address. */
5430         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5431         if (!phba->ctrl_regs_memmap_p) {
5432                 dev_printk(KERN_ERR, &pdev->dev,
5433                            "ioremap failed for HBA control registers.\n");
5434                 goto out_iounmap_slim;
5435         }
5436
5437         /* Allocate memory for SLI-2 structures */
5438         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5439                                                SLI2_SLIM_SIZE,
5440                                                &phba->slim2p.phys,
5441                                                GFP_KERNEL);
5442         if (!phba->slim2p.virt)
5443                 goto out_iounmap;
5444
5445         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5446         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5447         phba->mbox_ext = (phba->slim2p.virt +
5448                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5449         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5450         phba->IOCBs = (phba->slim2p.virt +
5451                        offsetof(struct lpfc_sli2_slim, IOCBs));
5452
5453         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5454                                                  lpfc_sli_hbq_size(),
5455                                                  &phba->hbqslimp.phys,
5456                                                  GFP_KERNEL);
5457         if (!phba->hbqslimp.virt)
5458                 goto out_free_slim;
5459
5460         hbq_count = lpfc_sli_hbq_count();
5461         ptr = phba->hbqslimp.virt;
5462         for (i = 0; i < hbq_count; ++i) {
5463                 phba->hbqs[i].hbq_virt = ptr;
5464                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5465                 ptr += (lpfc_hbq_defs[i]->entry_count *
5466                         sizeof(struct lpfc_hbq_entry));
5467         }
5468         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5469         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5470
5471         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5472
5473         INIT_LIST_HEAD(&phba->rb_pend_list);
5474
5475         phba->MBslimaddr = phba->slim_memmap_p;
5476         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5477         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5478         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5479         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5480
5481         return 0;
5482
5483 out_free_slim:
5484         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5485                           phba->slim2p.virt, phba->slim2p.phys);
5486 out_iounmap:
5487         iounmap(phba->ctrl_regs_memmap_p);
5488 out_iounmap_slim:
5489         iounmap(phba->slim_memmap_p);
5490 out:
5491         return error;
5492 }
5493
5494 /**
5495  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5496  * @phba: pointer to lpfc hba data structure.
5497  *
5498  * This routine is invoked to unset the PCI device memory space for device
5499  * with SLI-3 interface spec.
5500  **/
5501 static void
5502 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5503 {
5504         struct pci_dev *pdev;
5505
5506         /* Obtain PCI device reference */
5507         if (!phba->pcidev)
5508                 return;
5509         else
5510                 pdev = phba->pcidev;
5511
5512         /* Free coherent DMA memory allocated */
5513         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5514                           phba->hbqslimp.virt, phba->hbqslimp.phys);
5515         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5516                           phba->slim2p.virt, phba->slim2p.phys);
5517
5518         /* I/O memory unmap */
5519         iounmap(phba->ctrl_regs_memmap_p);
5520         iounmap(phba->slim_memmap_p);
5521
5522         return;
5523 }
5524
5525 /**
5526  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5527  * @phba: pointer to lpfc hba data structure.
5528  *
5529  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5530  * done and check status.
5531  *
5532  * Return 0 if successful, otherwise -ENODEV.
5533  **/
5534 int
5535 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5536 {
5537         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5538         struct lpfc_register reg_data;
5539         int i, port_error = 0;
5540         uint32_t if_type;
5541
5542         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5543         memset(&reg_data, 0, sizeof(reg_data));
5544         if (!phba->sli4_hba.PSMPHRregaddr)
5545                 return -ENODEV;
5546
5547         /* Wait up to 30 seconds for the SLI Port POST done and ready */
5548         for (i = 0; i < 3000; i++) {
5549                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5550                         &portsmphr_reg.word0) ||
5551                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
5552                         /* Port has a fatal POST error, break out */
5553                         port_error = -ENODEV;
5554                         break;
5555                 }
5556                 if (LPFC_POST_STAGE_PORT_READY ==
5557                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
5558                         break;
5559                 msleep(10);
5560         }
5561
5562         /*
5563          * If there was a port error during POST, then don't proceed with
5564          * other register reads as the data may not be valid.  Just exit.
5565          */
5566         if (port_error) {
5567                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5568                         "1408 Port Failed POST - portsmphr=0x%x, "
5569                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5570                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5571                         portsmphr_reg.word0,
5572                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5573                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5574                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5575                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5576                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5577                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5578                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5579                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5580         } else {
5581                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5582                                 "2534 Device Info: SLIFamily=0x%x, "
5583                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5584                                 "SLIHint_2=0x%x, FT=0x%x\n",
5585                                 bf_get(lpfc_sli_intf_sli_family,
5586                                        &phba->sli4_hba.sli_intf),
5587                                 bf_get(lpfc_sli_intf_slirev,
5588                                        &phba->sli4_hba.sli_intf),
5589                                 bf_get(lpfc_sli_intf_if_type,
5590                                        &phba->sli4_hba.sli_intf),
5591                                 bf_get(lpfc_sli_intf_sli_hint1,
5592                                        &phba->sli4_hba.sli_intf),
5593                                 bf_get(lpfc_sli_intf_sli_hint2,
5594                                        &phba->sli4_hba.sli_intf),
5595                                 bf_get(lpfc_sli_intf_func_type,
5596                                        &phba->sli4_hba.sli_intf));
5597                 /*
5598                  * Check for other Port errors during the initialization
5599                  * process.  Fail the load if the port did not come up
5600                  * correctly.
5601                  */
5602                 if_type = bf_get(lpfc_sli_intf_if_type,
5603                                  &phba->sli4_hba.sli_intf);
5604                 switch (if_type) {
5605                 case LPFC_SLI_INTF_IF_TYPE_0:
5606                         phba->sli4_hba.ue_mask_lo =
5607                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5608                         phba->sli4_hba.ue_mask_hi =
5609                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5610                         uerrlo_reg.word0 =
5611                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5612                         uerrhi_reg.word0 =
5613                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5614                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5615                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5616                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5617                                                 "1422 Unrecoverable Error "
5618                                                 "Detected during POST "
5619                                                 "uerr_lo_reg=0x%x, "
5620                                                 "uerr_hi_reg=0x%x, "
5621                                                 "ue_mask_lo_reg=0x%x, "
5622                                                 "ue_mask_hi_reg=0x%x\n",
5623                                                 uerrlo_reg.word0,
5624                                                 uerrhi_reg.word0,
5625                                                 phba->sli4_hba.ue_mask_lo,
5626                                                 phba->sli4_hba.ue_mask_hi);
5627                                 port_error = -ENODEV;
5628                         }
5629                         break;
5630                 case LPFC_SLI_INTF_IF_TYPE_2:
5631                         /* Final checks.  The port status should be clean. */
5632                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
5633                                 &reg_data.word0) ||
5634                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
5635                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
5636                                 phba->work_status[0] =
5637                                         readl(phba->sli4_hba.u.if_type2.
5638                                               ERR1regaddr);
5639                                 phba->work_status[1] =
5640                                         readl(phba->sli4_hba.u.if_type2.
5641                                               ERR2regaddr);
5642                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5643                                         "2888 Port Error Detected "
5644                                         "during POST: "
5645                                         "port status reg 0x%x, "
5646                                         "port_smphr reg 0x%x, "
5647                                         "error 1=0x%x, error 2=0x%x\n",
5648                                         reg_data.word0,
5649                                         portsmphr_reg.word0,
5650                                         phba->work_status[0],
5651                                         phba->work_status[1]);
5652                                 port_error = -ENODEV;
5653                         }
5654                         break;
5655                 case LPFC_SLI_INTF_IF_TYPE_1:
5656                 default:
5657                         break;
5658                 }
5659         }
5660         return port_error;
5661 }
5662
5663 /**
5664  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5665  * @phba: pointer to lpfc hba data structure.
5666  * @if_type:  The SLI4 interface type getting configured.
5667  *
5668  * This routine is invoked to set up SLI4 BAR0 PCI config space register
5669  * memory map.
5670  **/
5671 static void
5672 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5673 {
5674         switch (if_type) {
5675         case LPFC_SLI_INTF_IF_TYPE_0:
5676                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5677                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5678                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5679                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5680                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5681                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5682                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5683                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5684                 phba->sli4_hba.SLIINTFregaddr =
5685                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5686                 break;
5687         case LPFC_SLI_INTF_IF_TYPE_2:
5688                 phba->sli4_hba.u.if_type2.ERR1regaddr =
5689                         phba->sli4_hba.conf_regs_memmap_p +
5690                                                 LPFC_CTL_PORT_ER1_OFFSET;
5691                 phba->sli4_hba.u.if_type2.ERR2regaddr =
5692                         phba->sli4_hba.conf_regs_memmap_p +
5693                                                 LPFC_CTL_PORT_ER2_OFFSET;
5694                 phba->sli4_hba.u.if_type2.CTRLregaddr =
5695                         phba->sli4_hba.conf_regs_memmap_p +
5696                                                 LPFC_CTL_PORT_CTL_OFFSET;
5697                 phba->sli4_hba.u.if_type2.STATUSregaddr =
5698                         phba->sli4_hba.conf_regs_memmap_p +
5699                                                 LPFC_CTL_PORT_STA_OFFSET;
5700                 phba->sli4_hba.SLIINTFregaddr =
5701                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5702                 phba->sli4_hba.PSMPHRregaddr =
5703                         phba->sli4_hba.conf_regs_memmap_p +
5704                                                 LPFC_CTL_PORT_SEM_OFFSET;
5705                 phba->sli4_hba.RQDBregaddr =
5706                         phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5707                 phba->sli4_hba.WQDBregaddr =
5708                         phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5709                 phba->sli4_hba.EQCQDBregaddr =
5710                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5711                 phba->sli4_hba.MQDBregaddr =
5712                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5713                 phba->sli4_hba.BMBXregaddr =
5714                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5715                 break;
5716         case LPFC_SLI_INTF_IF_TYPE_1:
5717         default:
5718                 dev_printk(KERN_ERR, &phba->pcidev->dev,
5719                            "FATAL - unsupported SLI4 interface type - %d\n",
5720                            if_type);
5721                 break;
5722         }
5723 }
5724
5725 /**
5726  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5727  * @phba: pointer to lpfc hba data structure.
5728  *
5729  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5730  * memory map.
5731  **/
5732 static void
5733 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5734 {
5735         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5736                 LPFC_SLIPORT_IF0_SMPHR;
5737         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5738                 LPFC_HST_ISR0;
5739         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5740                 LPFC_HST_IMR0;
5741         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5742                 LPFC_HST_ISCR0;
5743 }
5744
5745 /**
5746  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5747  * @phba: pointer to lpfc hba data structure.
5748  * @vf: virtual function number
5749  *
5750  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5751  * based on the given viftual function number, @vf.
5752  *
5753  * Return 0 if successful, otherwise -ENODEV.
5754  **/
5755 static int
5756 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5757 {
5758         if (vf > LPFC_VIR_FUNC_MAX)
5759                 return -ENODEV;
5760
5761         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5762                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5763         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5764                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5765         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5766                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5767         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5768                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5769         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5770                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5771         return 0;
5772 }
5773
5774 /**
5775  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5776  * @phba: pointer to lpfc hba data structure.
5777  *
5778  * This routine is invoked to create the bootstrap mailbox
5779  * region consistent with the SLI-4 interface spec.  This
5780  * routine allocates all memory necessary to communicate
5781  * mailbox commands to the port and sets up all alignment
5782  * needs.  No locks are expected to be held when calling
5783  * this routine.
5784  *
5785  * Return codes
5786  *      0 - successful
5787  *      -ENOMEM - could not allocated memory.
5788  **/
5789 static int
5790 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5791 {
5792         uint32_t bmbx_size;
5793         struct lpfc_dmabuf *dmabuf;
5794         struct dma_address *dma_address;
5795         uint32_t pa_addr;
5796         uint64_t phys_addr;
5797
5798         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5799         if (!dmabuf)
5800                 return -ENOMEM;
5801
5802         /*
5803          * The bootstrap mailbox region is comprised of 2 parts
5804          * plus an alignment restriction of 16 bytes.
5805          */
5806         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5807         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5808                                           bmbx_size,
5809                                           &dmabuf->phys,
5810                                           GFP_KERNEL);
5811         if (!dmabuf->virt) {
5812                 kfree(dmabuf);
5813                 return -ENOMEM;
5814         }
5815         memset(dmabuf->virt, 0, bmbx_size);
5816
5817         /*
5818          * Initialize the bootstrap mailbox pointers now so that the register
5819          * operations are simple later.  The mailbox dma address is required
5820          * to be 16-byte aligned.  Also align the virtual memory as each
5821          * maibox is copied into the bmbx mailbox region before issuing the
5822          * command to the port.
5823          */
5824         phba->sli4_hba.bmbx.dmabuf = dmabuf;
5825         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5826
5827         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5828                                               LPFC_ALIGN_16_BYTE);
5829         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5830                                               LPFC_ALIGN_16_BYTE);
5831
5832         /*
5833          * Set the high and low physical addresses now.  The SLI4 alignment
5834          * requirement is 16 bytes and the mailbox is posted to the port
5835          * as two 30-bit addresses.  The other data is a bit marking whether
5836          * the 30-bit address is the high or low address.
5837          * Upcast bmbx aphys to 64bits so shift instruction compiles
5838          * clean on 32 bit machines.
5839          */
5840         dma_address = &phba->sli4_hba.bmbx.dma_address;
5841         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5842         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5843         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5844                                            LPFC_BMBX_BIT1_ADDR_HI);
5845
5846         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5847         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5848                                            LPFC_BMBX_BIT1_ADDR_LO);
5849         return 0;
5850 }
5851
5852 /**
5853  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5854  * @phba: pointer to lpfc hba data structure.
5855  *
5856  * This routine is invoked to teardown the bootstrap mailbox
5857  * region and release all host resources. This routine requires
5858  * the caller to ensure all mailbox commands recovered, no
5859  * additional mailbox comands are sent, and interrupts are disabled
5860  * before calling this routine.
5861  *
5862  **/
5863 static void
5864 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5865 {
5866         dma_free_coherent(&phba->pcidev->dev,
5867                           phba->sli4_hba.bmbx.bmbx_size,
5868                           phba->sli4_hba.bmbx.dmabuf->virt,
5869                           phba->sli4_hba.bmbx.dmabuf->phys);
5870
5871         kfree(phba->sli4_hba.bmbx.dmabuf);
5872         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5873 }
5874
5875 /**
5876  * lpfc_sli4_read_config - Get the config parameters.
5877  * @phba: pointer to lpfc hba data structure.
5878  *
5879  * This routine is invoked to read the configuration parameters from the HBA.
5880  * The configuration parameters are used to set the base and maximum values
5881  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5882  * allocation for the port.
5883  *
5884  * Return codes
5885  *      0 - successful
5886  *      -ENOMEM - No available memory
5887  *      -EIO - The mailbox failed to complete successfully.
5888  **/
5889 static int
5890 lpfc_sli4_read_config(struct lpfc_hba *phba)
5891 {
5892         LPFC_MBOXQ_t *pmb;
5893         struct lpfc_mbx_read_config *rd_config;
5894         union  lpfc_sli4_cfg_shdr *shdr;
5895         uint32_t shdr_status, shdr_add_status;
5896         struct lpfc_mbx_get_func_cfg *get_func_cfg;
5897         struct lpfc_rsrc_desc_fcfcoe *desc;
5898         uint32_t desc_count;
5899         int length, i, rc = 0;
5900
5901         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5902         if (!pmb) {
5903                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5904                                 "2011 Unable to allocate memory for issuing "
5905                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5906                 return -ENOMEM;
5907         }
5908
5909         lpfc_read_config(phba, pmb);
5910
5911         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5912         if (rc != MBX_SUCCESS) {
5913                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5914                         "2012 Mailbox failed , mbxCmd x%x "
5915                         "READ_CONFIG, mbxStatus x%x\n",
5916                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
5917                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
5918                 rc = -EIO;
5919         } else {
5920                 rd_config = &pmb->u.mqe.un.rd_config;
5921                 phba->sli4_hba.extents_in_use =
5922                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
5923                 phba->sli4_hba.max_cfg_param.max_xri =
5924                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5925                 phba->sli4_hba.max_cfg_param.xri_base =
5926                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5927                 phba->sli4_hba.max_cfg_param.max_vpi =
5928                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5929                 phba->sli4_hba.max_cfg_param.vpi_base =
5930                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5931                 phba->sli4_hba.max_cfg_param.max_rpi =
5932                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5933                 phba->sli4_hba.max_cfg_param.rpi_base =
5934                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5935                 phba->sli4_hba.max_cfg_param.max_vfi =
5936                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5937                 phba->sli4_hba.max_cfg_param.vfi_base =
5938                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5939                 phba->sli4_hba.max_cfg_param.max_fcfi =
5940                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5941                 phba->sli4_hba.max_cfg_param.max_eq =
5942                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5943                 phba->sli4_hba.max_cfg_param.max_rq =
5944                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5945                 phba->sli4_hba.max_cfg_param.max_wq =
5946                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5947                 phba->sli4_hba.max_cfg_param.max_cq =
5948                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5949                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5950                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5951                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5952                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5953                 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5954                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5955                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5956                 phba->max_vports = phba->max_vpi;
5957                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5958                                 "2003 cfg params Extents? %d "
5959                                 "XRI(B:%d M:%d), "
5960                                 "VPI(B:%d M:%d) "
5961                                 "VFI(B:%d M:%d) "
5962                                 "RPI(B:%d M:%d) "
5963                                 "FCFI(Count:%d)\n",
5964                                 phba->sli4_hba.extents_in_use,
5965                                 phba->sli4_hba.max_cfg_param.xri_base,
5966                                 phba->sli4_hba.max_cfg_param.max_xri,
5967                                 phba->sli4_hba.max_cfg_param.vpi_base,
5968                                 phba->sli4_hba.max_cfg_param.max_vpi,
5969                                 phba->sli4_hba.max_cfg_param.vfi_base,
5970                                 phba->sli4_hba.max_cfg_param.max_vfi,
5971                                 phba->sli4_hba.max_cfg_param.rpi_base,
5972                                 phba->sli4_hba.max_cfg_param.max_rpi,
5973                                 phba->sli4_hba.max_cfg_param.max_fcfi);
5974         }
5975
5976         if (rc)
5977                 goto read_cfg_out;
5978
5979         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
5980         if (phba->cfg_hba_queue_depth >
5981                 (phba->sli4_hba.max_cfg_param.max_xri -
5982                         lpfc_sli4_get_els_iocb_cnt(phba)))
5983                 phba->cfg_hba_queue_depth =
5984                         phba->sli4_hba.max_cfg_param.max_xri -
5985                                 lpfc_sli4_get_els_iocb_cnt(phba);
5986
5987         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
5988             LPFC_SLI_INTF_IF_TYPE_2)
5989                 goto read_cfg_out;
5990
5991         /* get the pf# and vf# for SLI4 if_type 2 port */
5992         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
5993                   sizeof(struct lpfc_sli4_cfg_mhdr));
5994         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
5995                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
5996                          length, LPFC_SLI4_MBX_EMBED);
5997
5998         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5999         shdr = (union lpfc_sli4_cfg_shdr *)
6000                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6001         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6002         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6003         if (rc || shdr_status || shdr_add_status) {
6004                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6005                                 "3026 Mailbox failed , mbxCmd x%x "
6006                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6007                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6008                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6009                 rc = -EIO;
6010                 goto read_cfg_out;
6011         }
6012
6013         /* search for fc_fcoe resrouce descriptor */
6014         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6015         desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6016
6017         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6018                 desc = (struct lpfc_rsrc_desc_fcfcoe *)
6019                         &get_func_cfg->func_cfg.desc[i];
6020                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6021                     bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
6022                         phba->sli4_hba.iov.pf_number =
6023                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6024                         phba->sli4_hba.iov.vf_number =
6025                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6026                         break;
6027                 }
6028         }
6029
6030         if (i < LPFC_RSRC_DESC_MAX_NUM)
6031                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6032                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6033                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6034                                 phba->sli4_hba.iov.vf_number);
6035         else {
6036                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6037                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6038                                 "Resrouce Descriptor:x%x\n",
6039                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6040                 rc = -EIO;
6041         }
6042
6043 read_cfg_out:
6044         mempool_free(pmb, phba->mbox_mem_pool);
6045         return rc;
6046 }
6047
6048 /**
6049  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6050  * @phba: pointer to lpfc hba data structure.
6051  *
6052  * This routine is invoked to setup the port-side endian order when
6053  * the port if_type is 0.  This routine has no function for other
6054  * if_types.
6055  *
6056  * Return codes
6057  *      0 - successful
6058  *      -ENOMEM - No available memory
6059  *      -EIO - The mailbox failed to complete successfully.
6060  **/
6061 static int
6062 lpfc_setup_endian_order(struct lpfc_hba *phba)
6063 {
6064         LPFC_MBOXQ_t *mboxq;
6065         uint32_t if_type, rc = 0;
6066         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6067                                       HOST_ENDIAN_HIGH_WORD1};
6068
6069         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6070         switch (if_type) {
6071         case LPFC_SLI_INTF_IF_TYPE_0:
6072                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6073                                                        GFP_KERNEL);
6074                 if (!mboxq) {
6075                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6076                                         "0492 Unable to allocate memory for "
6077                                         "issuing SLI_CONFIG_SPECIAL mailbox "
6078                                         "command\n");
6079                         return -ENOMEM;
6080                 }
6081
6082                 /*
6083                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6084                  * two words to contain special data values and no other data.
6085                  */
6086                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6087                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6088                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6089                 if (rc != MBX_SUCCESS) {
6090                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6091                                         "0493 SLI_CONFIG_SPECIAL mailbox "
6092                                         "failed with status x%x\n",
6093                                         rc);
6094                         rc = -EIO;
6095                 }
6096                 mempool_free(mboxq, phba->mbox_mem_pool);
6097                 break;
6098         case LPFC_SLI_INTF_IF_TYPE_2:
6099         case LPFC_SLI_INTF_IF_TYPE_1:
6100         default:
6101                 break;
6102         }
6103         return rc;
6104 }
6105
6106 /**
6107  * lpfc_sli4_queue_create - Create all the SLI4 queues
6108  * @phba: pointer to lpfc hba data structure.
6109  *
6110  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6111  * operation. For each SLI4 queue type, the parameters such as queue entry
6112  * count (queue depth) shall be taken from the module parameter. For now,
6113  * we just use some constant number as place holder.
6114  *
6115  * Return codes
6116  *      0 - successful
6117  *      -ENOMEM - No available memory
6118  *      -EIO - The mailbox failed to complete successfully.
6119  **/
6120 static int
6121 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6122 {
6123         struct lpfc_queue *qdesc;
6124         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6125         int cfg_fcp_wq_count;
6126         int cfg_fcp_eq_count;
6127
6128         /*
6129          * Sanity check for confiugred queue parameters against the run-time
6130          * device parameters
6131          */
6132
6133         /* Sanity check on FCP fast-path WQ parameters */
6134         cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
6135         if (cfg_fcp_wq_count >
6136             (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
6137                 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
6138                                    LPFC_SP_WQN_DEF;
6139                 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
6140                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6141                                         "2581 Not enough WQs (%d) from "
6142                                         "the pci function for supporting "
6143                                         "FCP WQs (%d)\n",
6144                                         phba->sli4_hba.max_cfg_param.max_wq,
6145                                         phba->cfg_fcp_wq_count);
6146                         goto out_error;
6147                 }
6148                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6149                                 "2582 Not enough WQs (%d) from the pci "
6150                                 "function for supporting the requested "
6151                                 "FCP WQs (%d), the actual FCP WQs can "
6152                                 "be supported: %d\n",
6153                                 phba->sli4_hba.max_cfg_param.max_wq,
6154                                 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
6155         }
6156         /* The actual number of FCP work queues adopted */
6157         phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
6158
6159         /* Sanity check on FCP fast-path EQ parameters */
6160         cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
6161         if (cfg_fcp_eq_count >
6162             (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
6163                 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
6164                                    LPFC_SP_EQN_DEF;
6165                 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
6166                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6167                                         "2574 Not enough EQs (%d) from the "
6168                                         "pci function for supporting FCP "
6169                                         "EQs (%d)\n",
6170                                         phba->sli4_hba.max_cfg_param.max_eq,
6171                                         phba->cfg_fcp_eq_count);
6172                         goto out_error;
6173                 }
6174                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6175                                 "2575 Not enough EQs (%d) from the pci "
6176                                 "function for supporting the requested "
6177                                 "FCP EQs (%d), the actual FCP EQs can "
6178                                 "be supported: %d\n",
6179                                 phba->sli4_hba.max_cfg_param.max_eq,
6180                                 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
6181         }
6182         /* It does not make sense to have more EQs than WQs */
6183         if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
6184                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6185                                 "2593 The FCP EQ count(%d) cannot be greater "
6186                                 "than the FCP WQ count(%d), limiting the "
6187                                 "FCP EQ count to %d\n", cfg_fcp_eq_count,
6188                                 phba->cfg_fcp_wq_count,
6189                                 phba->cfg_fcp_wq_count);
6190                 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
6191         }
6192         /* The actual number of FCP event queues adopted */
6193         phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
6194         /* The overall number of event queues used */
6195         phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
6196
6197         /*
6198          * Create Event Queues (EQs)
6199          */
6200
6201         /* Get EQ depth from module parameter, fake the default for now */
6202         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6203         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6204
6205         /* Create slow path event queue */
6206         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6207                                       phba->sli4_hba.eq_ecount);
6208         if (!qdesc) {
6209                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6210                                 "0496 Failed allocate slow-path EQ\n");
6211                 goto out_error;
6212         }
6213         phba->sli4_hba.sp_eq = qdesc;
6214
6215         /* Create fast-path FCP Event Queue(s) */
6216         phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
6217                                phba->cfg_fcp_eq_count), GFP_KERNEL);
6218         if (!phba->sli4_hba.fp_eq) {
6219                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6220                                 "2576 Failed allocate memory for fast-path "
6221                                 "EQ record array\n");
6222                 goto out_free_sp_eq;
6223         }
6224         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6225                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6226                                               phba->sli4_hba.eq_ecount);
6227                 if (!qdesc) {
6228                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6229                                         "0497 Failed allocate fast-path EQ\n");
6230                         goto out_free_fp_eq;
6231                 }
6232                 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6233         }
6234
6235         /*
6236          * Create Complete Queues (CQs)
6237          */
6238
6239         /* Get CQ depth from module parameter, fake the default for now */
6240         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6241         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6242
6243         /* Create slow-path Mailbox Command Complete Queue */
6244         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6245                                       phba->sli4_hba.cq_ecount);
6246         if (!qdesc) {
6247                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6248                                 "0500 Failed allocate slow-path mailbox CQ\n");
6249                 goto out_free_fp_eq;
6250         }
6251         phba->sli4_hba.mbx_cq = qdesc;
6252
6253         /* Create slow-path ELS Complete Queue */
6254         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6255                                       phba->sli4_hba.cq_ecount);
6256         if (!qdesc) {
6257                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6258                                 "0501 Failed allocate slow-path ELS CQ\n");
6259                 goto out_free_mbx_cq;
6260         }
6261         phba->sli4_hba.els_cq = qdesc;
6262
6263
6264         /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
6265         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6266                                 phba->cfg_fcp_eq_count), GFP_KERNEL);
6267         if (!phba->sli4_hba.fcp_cq) {
6268                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6269                                 "2577 Failed allocate memory for fast-path "
6270                                 "CQ record array\n");
6271                 goto out_free_els_cq;
6272         }
6273         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6274                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6275                                               phba->sli4_hba.cq_ecount);
6276                 if (!qdesc) {
6277                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6278                                         "0499 Failed allocate fast-path FCP "
6279                                         "CQ (%d)\n", fcp_cqidx);
6280                         goto out_free_fcp_cq;
6281                 }
6282                 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6283         }
6284
6285         /* Create Mailbox Command Queue */
6286         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6287         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6288
6289         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6290                                       phba->sli4_hba.mq_ecount);
6291         if (!qdesc) {
6292                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6293                                 "0505 Failed allocate slow-path MQ\n");
6294                 goto out_free_fcp_cq;
6295         }
6296         phba->sli4_hba.mbx_wq = qdesc;
6297
6298         /*
6299          * Create all the Work Queues (WQs)
6300          */
6301         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6302         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6303
6304         /* Create slow-path ELS Work Queue */
6305         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6306                                       phba->sli4_hba.wq_ecount);
6307         if (!qdesc) {
6308                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6309                                 "0504 Failed allocate slow-path ELS WQ\n");
6310                 goto out_free_mbx_wq;
6311         }
6312         phba->sli4_hba.els_wq = qdesc;
6313
6314         /* Create fast-path FCP Work Queue(s) */
6315         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6316                                 phba->cfg_fcp_wq_count), GFP_KERNEL);
6317         if (!phba->sli4_hba.fcp_wq) {
6318                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6319                                 "2578 Failed allocate memory for fast-path "
6320                                 "WQ record array\n");
6321                 goto out_free_els_wq;
6322         }
6323         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6324                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6325                                               phba->sli4_hba.wq_ecount);
6326                 if (!qdesc) {
6327                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6328                                         "0503 Failed allocate fast-path FCP "
6329                                         "WQ (%d)\n", fcp_wqidx);
6330                         goto out_free_fcp_wq;
6331                 }
6332                 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6333         }
6334
6335         /*
6336          * Create Receive Queue (RQ)
6337          */
6338         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6339         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6340
6341         /* Create Receive Queue for header */
6342         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6343                                       phba->sli4_hba.rq_ecount);
6344         if (!qdesc) {
6345                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6346                                 "0506 Failed allocate receive HRQ\n");
6347                 goto out_free_fcp_wq;
6348         }
6349         phba->sli4_hba.hdr_rq = qdesc;
6350
6351         /* Create Receive Queue for data */
6352         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6353                                       phba->sli4_hba.rq_ecount);
6354         if (!qdesc) {
6355                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6356                                 "0507 Failed allocate receive DRQ\n");
6357                 goto out_free_hdr_rq;
6358         }
6359         phba->sli4_hba.dat_rq = qdesc;
6360
6361         return 0;
6362
6363 out_free_hdr_rq:
6364         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6365         phba->sli4_hba.hdr_rq = NULL;
6366 out_free_fcp_wq:
6367         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6368                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6369                 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6370         }
6371         kfree(phba->sli4_hba.fcp_wq);
6372 out_free_els_wq:
6373         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6374         phba->sli4_hba.els_wq = NULL;
6375 out_free_mbx_wq:
6376         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6377         phba->sli4_hba.mbx_wq = NULL;
6378 out_free_fcp_cq:
6379         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6380                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6381                 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6382         }
6383         kfree(phba->sli4_hba.fcp_cq);
6384 out_free_els_cq:
6385         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6386         phba->sli4_hba.els_cq = NULL;
6387 out_free_mbx_cq:
6388         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6389         phba->sli4_hba.mbx_cq = NULL;
6390 out_free_fp_eq:
6391         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6392                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6393                 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6394         }
6395         kfree(phba->sli4_hba.fp_eq);
6396 out_free_sp_eq:
6397         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6398         phba->sli4_hba.sp_eq = NULL;
6399 out_error:
6400         return -ENOMEM;
6401 }
6402
6403 /**
6404  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6405  * @phba: pointer to lpfc hba data structure.
6406  *
6407  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6408  * operation.
6409  *
6410  * Return codes
6411  *      0 - successful
6412  *      -ENOMEM - No available memory
6413  *      -EIO - The mailbox failed to complete successfully.
6414  **/
6415 static void
6416 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6417 {
6418         int fcp_qidx;
6419
6420         /* Release mailbox command work queue */
6421         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6422         phba->sli4_hba.mbx_wq = NULL;
6423
6424         /* Release ELS work queue */
6425         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6426         phba->sli4_hba.els_wq = NULL;
6427
6428         /* Release FCP work queue */
6429         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6430                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6431         kfree(phba->sli4_hba.fcp_wq);
6432         phba->sli4_hba.fcp_wq = NULL;
6433
6434         /* Release unsolicited receive queue */
6435         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6436         phba->sli4_hba.hdr_rq = NULL;
6437         lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6438         phba->sli4_hba.dat_rq = NULL;
6439
6440         /* Release ELS complete queue */
6441         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6442         phba->sli4_hba.els_cq = NULL;
6443
6444         /* Release mailbox command complete queue */
6445         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6446         phba->sli4_hba.mbx_cq = NULL;
6447
6448         /* Release FCP response complete queue */
6449         fcp_qidx = 0;
6450         do
6451                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
6452         while (++fcp_qidx < phba->cfg_fcp_eq_count);
6453         kfree(phba->sli4_hba.fcp_cq);
6454         phba->sli4_hba.fcp_cq = NULL;
6455
6456         /* Release fast-path event queue */
6457         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6458                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6459         kfree(phba->sli4_hba.fp_eq);
6460         phba->sli4_hba.fp_eq = NULL;
6461
6462         /* Release slow-path event queue */
6463         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6464         phba->sli4_hba.sp_eq = NULL;
6465
6466         return;
6467 }
6468
6469 /**
6470  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6471  * @phba: pointer to lpfc hba data structure.
6472  *
6473  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6474  * operation.
6475  *
6476  * Return codes
6477  *      0 - successful
6478  *      -ENOMEM - No available memory
6479  *      -EIO - The mailbox failed to complete successfully.
6480  **/
6481 int
6482 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6483 {
6484         int rc = -ENOMEM;
6485         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6486         int fcp_cq_index = 0;
6487
6488         /*
6489          * Set up Event Queues (EQs)
6490          */
6491
6492         /* Set up slow-path event queue */
6493         if (!phba->sli4_hba.sp_eq) {
6494                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6495                                 "0520 Slow-path EQ not allocated\n");
6496                 goto out_error;
6497         }
6498         rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6499                             LPFC_SP_DEF_IMAX);
6500         if (rc) {
6501                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6502                                 "0521 Failed setup of slow-path EQ: "
6503                                 "rc = 0x%x\n", rc);
6504                 goto out_error;
6505         }
6506         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6507                         "2583 Slow-path EQ setup: queue-id=%d\n",
6508                         phba->sli4_hba.sp_eq->queue_id);
6509
6510         /* Set up fast-path event queue */
6511         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6512                 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6513                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6514                                         "0522 Fast-path EQ (%d) not "
6515                                         "allocated\n", fcp_eqidx);
6516                         goto out_destroy_fp_eq;
6517                 }
6518                 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6519                                     phba->cfg_fcp_imax);
6520                 if (rc) {
6521                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6522                                         "0523 Failed setup of fast-path EQ "
6523                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6524                         goto out_destroy_fp_eq;
6525                 }
6526                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6527                                 "2584 Fast-path EQ setup: "
6528                                 "queue[%d]-id=%d\n", fcp_eqidx,
6529                                 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6530         }
6531
6532         /*
6533          * Set up Complete Queues (CQs)
6534          */
6535
6536         /* Set up slow-path MBOX Complete Queue as the first CQ */
6537         if (!phba->sli4_hba.mbx_cq) {
6538                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6539                                 "0528 Mailbox CQ not allocated\n");
6540                 goto out_destroy_fp_eq;
6541         }
6542         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6543                             LPFC_MCQ, LPFC_MBOX);
6544         if (rc) {
6545                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6546                                 "0529 Failed setup of slow-path mailbox CQ: "
6547                                 "rc = 0x%x\n", rc);
6548                 goto out_destroy_fp_eq;
6549         }
6550         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6551                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6552                         phba->sli4_hba.mbx_cq->queue_id,
6553                         phba->sli4_hba.sp_eq->queue_id);
6554
6555         /* Set up slow-path ELS Complete Queue */
6556         if (!phba->sli4_hba.els_cq) {
6557                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6558                                 "0530 ELS CQ not allocated\n");
6559                 goto out_destroy_mbx_cq;
6560         }
6561         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6562                             LPFC_WCQ, LPFC_ELS);
6563         if (rc) {
6564                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6565                                 "0531 Failed setup of slow-path ELS CQ: "
6566                                 "rc = 0x%x\n", rc);
6567                 goto out_destroy_mbx_cq;
6568         }
6569         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6570                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6571                         phba->sli4_hba.els_cq->queue_id,
6572                         phba->sli4_hba.sp_eq->queue_id);
6573
6574         /* Set up fast-path FCP Response Complete Queue */
6575         fcp_cqidx = 0;
6576         do {
6577                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6578                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6579                                         "0526 Fast-path FCP CQ (%d) not "
6580                                         "allocated\n", fcp_cqidx);
6581                         goto out_destroy_fcp_cq;
6582                 }
6583                 if (phba->cfg_fcp_eq_count)
6584                         rc = lpfc_cq_create(phba,
6585                                             phba->sli4_hba.fcp_cq[fcp_cqidx],
6586                                             phba->sli4_hba.fp_eq[fcp_cqidx],
6587                                             LPFC_WCQ, LPFC_FCP);
6588                 else
6589                         rc = lpfc_cq_create(phba,
6590                                             phba->sli4_hba.fcp_cq[fcp_cqidx],
6591                                             phba->sli4_hba.sp_eq,
6592                                             LPFC_WCQ, LPFC_FCP);
6593                 if (rc) {
6594                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6595                                         "0527 Failed setup of fast-path FCP "
6596                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6597                         goto out_destroy_fcp_cq;
6598                 }
6599                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6600                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
6601                                 "parent %seq[%d]-id=%d\n",
6602                                 fcp_cqidx,
6603                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6604                                 (phba->cfg_fcp_eq_count) ? "" : "sp_",
6605                                 fcp_cqidx,
6606                                 (phba->cfg_fcp_eq_count) ?
6607                                    phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
6608                                    phba->sli4_hba.sp_eq->queue_id);
6609         } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
6610
6611         /*
6612          * Set up all the Work Queues (WQs)
6613          */
6614
6615         /* Set up Mailbox Command Queue */
6616         if (!phba->sli4_hba.mbx_wq) {
6617                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6618                                 "0538 Slow-path MQ not allocated\n");
6619                 goto out_destroy_fcp_cq;
6620         }
6621         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6622                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
6623         if (rc) {
6624                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6625                                 "0539 Failed setup of slow-path MQ: "
6626                                 "rc = 0x%x\n", rc);
6627                 goto out_destroy_fcp_cq;
6628         }
6629         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6630                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6631                         phba->sli4_hba.mbx_wq->queue_id,
6632                         phba->sli4_hba.mbx_cq->queue_id);
6633
6634         /* Set up slow-path ELS Work Queue */
6635         if (!phba->sli4_hba.els_wq) {
6636                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6637                                 "0536 Slow-path ELS WQ not allocated\n");
6638                 goto out_destroy_mbx_wq;
6639         }
6640         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6641                             phba->sli4_hba.els_cq, LPFC_ELS);
6642         if (rc) {
6643                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6644                                 "0537 Failed setup of slow-path ELS WQ: "
6645                                 "rc = 0x%x\n", rc);
6646                 goto out_destroy_mbx_wq;
6647         }
6648         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6649                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6650                         phba->sli4_hba.els_wq->queue_id,
6651                         phba->sli4_hba.els_cq->queue_id);
6652
6653         /* Set up fast-path FCP Work Queue */
6654         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6655                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6656                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6657                                         "0534 Fast-path FCP WQ (%d) not "
6658                                         "allocated\n", fcp_wqidx);
6659                         goto out_destroy_fcp_wq;
6660                 }
6661                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6662                                     phba->sli4_hba.fcp_cq[fcp_cq_index],
6663                                     LPFC_FCP);
6664                 if (rc) {
6665                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6666                                         "0535 Failed setup of fast-path FCP "
6667                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6668                         goto out_destroy_fcp_wq;
6669                 }
6670                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6671                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
6672                                 "parent cq[%d]-id=%d\n",
6673                                 fcp_wqidx,
6674                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6675                                 fcp_cq_index,
6676                                 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6677                 /* Round robin FCP Work Queue's Completion Queue assignment */
6678                 if (phba->cfg_fcp_eq_count)
6679                         fcp_cq_index = ((fcp_cq_index + 1) %
6680                                         phba->cfg_fcp_eq_count);
6681         }
6682
6683         /*
6684          * Create Receive Queue (RQ)
6685          */
6686         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6687                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6688                                 "0540 Receive Queue not allocated\n");
6689                 goto out_destroy_fcp_wq;
6690         }
6691         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6692                             phba->sli4_hba.els_cq, LPFC_USOL);
6693         if (rc) {
6694                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6695                                 "0541 Failed setup of Receive Queue: "
6696                                 "rc = 0x%x\n", rc);
6697                 goto out_destroy_fcp_wq;
6698         }
6699         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6700                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6701                         "parent cq-id=%d\n",
6702                         phba->sli4_hba.hdr_rq->queue_id,
6703                         phba->sli4_hba.dat_rq->queue_id,
6704                         phba->sli4_hba.els_cq->queue_id);
6705         return 0;
6706
6707 out_destroy_fcp_wq:
6708         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6709                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6710         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6711 out_destroy_mbx_wq:
6712         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6713 out_destroy_fcp_cq:
6714         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6715                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6716         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6717 out_destroy_mbx_cq:
6718         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6719 out_destroy_fp_eq:
6720         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6721                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6722         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6723 out_error:
6724         return rc;
6725 }
6726
6727 /**
6728  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6729  * @phba: pointer to lpfc hba data structure.
6730  *
6731  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6732  * operation.
6733  *
6734  * Return codes
6735  *      0 - successful
6736  *      -ENOMEM - No available memory
6737  *      -EIO - The mailbox failed to complete successfully.
6738  **/
6739 void
6740 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6741 {
6742         int fcp_qidx;
6743
6744         /* Unset mailbox command work queue */
6745         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6746         /* Unset ELS work queue */
6747         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6748         /* Unset unsolicited receive queue */
6749         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6750         /* Unset FCP work queue */
6751         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6752                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6753         /* Unset mailbox command complete queue */
6754         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6755         /* Unset ELS complete queue */
6756         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6757         /* Unset FCP response complete queue */
6758         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6759                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6760         /* Unset fast-path event queue */
6761         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6762                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6763         /* Unset slow-path event queue */
6764         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6765 }
6766
6767 /**
6768  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6769  * @phba: pointer to lpfc hba data structure.
6770  *
6771  * This routine is invoked to allocate and set up a pool of completion queue
6772  * events. The body of the completion queue event is a completion queue entry
6773  * CQE. For now, this pool is used for the interrupt service routine to queue
6774  * the following HBA completion queue events for the worker thread to process:
6775  *   - Mailbox asynchronous events
6776  *   - Receive queue completion unsolicited events
6777  * Later, this can be used for all the slow-path events.
6778  *
6779  * Return codes
6780  *      0 - successful
6781  *      -ENOMEM - No available memory
6782  **/
6783 static int
6784 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6785 {
6786         struct lpfc_cq_event *cq_event;
6787         int i;
6788
6789         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6790                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6791                 if (!cq_event)
6792                         goto out_pool_create_fail;
6793                 list_add_tail(&cq_event->list,
6794                               &phba->sli4_hba.sp_cqe_event_pool);
6795         }
6796         return 0;
6797
6798 out_pool_create_fail:
6799         lpfc_sli4_cq_event_pool_destroy(phba);
6800         return -ENOMEM;
6801 }
6802
6803 /**
6804  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6805  * @phba: pointer to lpfc hba data structure.
6806  *
6807  * This routine is invoked to free the pool of completion queue events at
6808  * driver unload time. Note that, it is the responsibility of the driver
6809  * cleanup routine to free all the outstanding completion-queue events
6810  * allocated from this pool back into the pool before invoking this routine
6811  * to destroy the pool.
6812  **/
6813 static void
6814 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6815 {
6816         struct lpfc_cq_event *cq_event, *next_cq_event;
6817
6818         list_for_each_entry_safe(cq_event, next_cq_event,
6819                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
6820                 list_del(&cq_event->list);
6821                 kfree(cq_event);
6822         }
6823 }
6824
6825 /**
6826  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6827  * @phba: pointer to lpfc hba data structure.
6828  *
6829  * This routine is the lock free version of the API invoked to allocate a
6830  * completion-queue event from the free pool.
6831  *
6832  * Return: Pointer to the newly allocated completion-queue event if successful
6833  *         NULL otherwise.
6834  **/
6835 struct lpfc_cq_event *
6836 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6837 {
6838         struct lpfc_cq_event *cq_event = NULL;
6839
6840         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6841                          struct lpfc_cq_event, list);
6842         return cq_event;
6843 }
6844
6845 /**
6846  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6847  * @phba: pointer to lpfc hba data structure.
6848  *
6849  * This routine is the lock version of the API invoked to allocate a
6850  * completion-queue event from the free pool.
6851  *
6852  * Return: Pointer to the newly allocated completion-queue event if successful
6853  *         NULL otherwise.
6854  **/
6855 struct lpfc_cq_event *
6856 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6857 {
6858         struct lpfc_cq_event *cq_event;
6859         unsigned long iflags;
6860
6861         spin_lock_irqsave(&phba->hbalock, iflags);
6862         cq_event = __lpfc_sli4_cq_event_alloc(phba);
6863         spin_unlock_irqrestore(&phba->hbalock, iflags);
6864         return cq_event;
6865 }
6866
6867 /**
6868  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6869  * @phba: pointer to lpfc hba data structure.
6870  * @cq_event: pointer to the completion queue event to be freed.
6871  *
6872  * This routine is the lock free version of the API invoked to release a
6873  * completion-queue event back into the free pool.
6874  **/
6875 void
6876 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6877                              struct lpfc_cq_event *cq_event)
6878 {
6879         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6880 }
6881
6882 /**
6883  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6884  * @phba: pointer to lpfc hba data structure.
6885  * @cq_event: pointer to the completion queue event to be freed.
6886  *
6887  * This routine is the lock version of the API invoked to release a
6888  * completion-queue event back into the free pool.
6889  **/
6890 void
6891 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6892                            struct lpfc_cq_event *cq_event)
6893 {
6894         unsigned long iflags;
6895         spin_lock_irqsave(&phba->hbalock, iflags);
6896         __lpfc_sli4_cq_event_release(phba, cq_event);
6897         spin_unlock_irqrestore(&phba->hbalock, iflags);
6898 }
6899
6900 /**
6901  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6902  * @phba: pointer to lpfc hba data structure.
6903  *
6904  * This routine is to free all the pending completion-queue events to the
6905  * back into the free pool for device reset.
6906  **/
6907 static void
6908 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6909 {
6910         LIST_HEAD(cqelist);
6911         struct lpfc_cq_event *cqe;
6912         unsigned long iflags;
6913
6914         /* Retrieve all the pending WCQEs from pending WCQE lists */
6915         spin_lock_irqsave(&phba->hbalock, iflags);
6916         /* Pending FCP XRI abort events */
6917         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6918                          &cqelist);
6919         /* Pending ELS XRI abort events */
6920         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6921                          &cqelist);
6922         /* Pending asynnc events */
6923         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6924                          &cqelist);
6925         spin_unlock_irqrestore(&phba->hbalock, iflags);
6926
6927         while (!list_empty(&cqelist)) {
6928                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6929                 lpfc_sli4_cq_event_release(phba, cqe);
6930         }
6931 }
6932
6933 /**
6934  * lpfc_pci_function_reset - Reset pci function.
6935  * @phba: pointer to lpfc hba data structure.
6936  *
6937  * This routine is invoked to request a PCI function reset. It will destroys
6938  * all resources assigned to the PCI function which originates this request.
6939  *
6940  * Return codes
6941  *      0 - successful
6942  *      -ENOMEM - No available memory
6943  *      -EIO - The mailbox failed to complete successfully.
6944  **/
6945 int
6946 lpfc_pci_function_reset(struct lpfc_hba *phba)
6947 {
6948         LPFC_MBOXQ_t *mboxq;
6949         uint32_t rc = 0, if_type;
6950         uint32_t shdr_status, shdr_add_status;
6951         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
6952         union lpfc_sli4_cfg_shdr *shdr;
6953         struct lpfc_register reg_data;
6954
6955         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6956         switch (if_type) {
6957         case LPFC_SLI_INTF_IF_TYPE_0:
6958                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6959                                                        GFP_KERNEL);
6960                 if (!mboxq) {
6961                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6962                                         "0494 Unable to allocate memory for "
6963                                         "issuing SLI_FUNCTION_RESET mailbox "
6964                                         "command\n");
6965                         return -ENOMEM;
6966                 }
6967
6968                 /* Setup PCI function reset mailbox-ioctl command */
6969                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6970                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6971                                  LPFC_SLI4_MBX_EMBED);
6972                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6973                 shdr = (union lpfc_sli4_cfg_shdr *)
6974                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6975                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6976                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6977                                          &shdr->response);
6978                 if (rc != MBX_TIMEOUT)
6979                         mempool_free(mboxq, phba->mbox_mem_pool);
6980                 if (shdr_status || shdr_add_status || rc) {
6981                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6982                                         "0495 SLI_FUNCTION_RESET mailbox "
6983                                         "failed with status x%x add_status x%x,"
6984                                         " mbx status x%x\n",
6985                                         shdr_status, shdr_add_status, rc);
6986                         rc = -ENXIO;
6987                 }
6988                 break;
6989         case LPFC_SLI_INTF_IF_TYPE_2:
6990                 for (num_resets = 0;
6991                      num_resets < MAX_IF_TYPE_2_RESETS;
6992                      num_resets++) {
6993                         reg_data.word0 = 0;
6994                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
6995                                LPFC_SLIPORT_LITTLE_ENDIAN);
6996                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
6997                                LPFC_SLIPORT_INIT_PORT);
6998                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
6999                                CTRLregaddr);
7000
7001                         /*
7002                          * Poll the Port Status Register and wait for RDY for
7003                          * up to 10 seconds.  If the port doesn't respond, treat
7004                          * it as an error.  If the port responds with RN, start
7005                          * the loop again.
7006                          */
7007                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7008                                 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7009                                               STATUSregaddr, &reg_data.word0)) {
7010                                         rc = -ENODEV;
7011                                         break;
7012                                 }
7013                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7014                                         break;
7015                                 if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
7016                                         reset_again++;
7017                                         break;
7018                                 }
7019                                 msleep(10);
7020                         }
7021
7022                         /*
7023                          * If the port responds to the init request with
7024                          * reset needed, delay for a bit and restart the loop.
7025                          */
7026                         if (reset_again) {
7027                                 msleep(10);
7028                                 reset_again = 0;
7029                                 continue;
7030                         }
7031
7032                         /* Detect any port errors. */
7033                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
7034                                  &reg_data.word0)) {
7035                                 rc = -ENODEV;
7036                                 break;
7037                         }
7038                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7039                             (rdy_chk >= 1000)) {
7040                                 phba->work_status[0] = readl(
7041                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
7042                                 phba->work_status[1] = readl(
7043                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
7044                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7045                                         "2890 Port Error Detected "
7046                                         "during Port Reset: "
7047                                         "port status reg 0x%x, "
7048                                         "error 1=0x%x, error 2=0x%x\n",
7049                                         reg_data.word0,
7050                                         phba->work_status[0],
7051                                         phba->work_status[1]);
7052                                 rc = -ENODEV;
7053                         }
7054
7055                         /*
7056                          * Terminate the outer loop provided the Port indicated
7057                          * ready within 10 seconds.
7058                          */
7059                         if (rdy_chk < 1000)
7060                                 break;
7061                 }
7062                 /* delay driver action following IF_TYPE_2 function reset */
7063                 msleep(100);
7064                 break;
7065         case LPFC_SLI_INTF_IF_TYPE_1:
7066         default:
7067                 break;
7068         }
7069
7070         /* Catch the not-ready port failure after a port reset. */
7071         if (num_resets >= MAX_IF_TYPE_2_RESETS)
7072                 rc = -ENODEV;
7073
7074         return rc;
7075 }
7076
7077 /**
7078  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7079  * @phba: pointer to lpfc hba data structure.
7080  * @cnt: number of nop mailbox commands to send.
7081  *
7082  * This routine is invoked to send a number @cnt of NOP mailbox command and
7083  * wait for each command to complete.
7084  *
7085  * Return: the number of NOP mailbox command completed.
7086  **/
7087 static int
7088 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7089 {
7090         LPFC_MBOXQ_t *mboxq;
7091         int length, cmdsent;
7092         uint32_t mbox_tmo;
7093         uint32_t rc = 0;
7094         uint32_t shdr_status, shdr_add_status;
7095         union lpfc_sli4_cfg_shdr *shdr;
7096
7097         if (cnt == 0) {
7098                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7099                                 "2518 Requested to send 0 NOP mailbox cmd\n");
7100                 return cnt;
7101         }
7102
7103         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7104         if (!mboxq) {
7105                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7106                                 "2519 Unable to allocate memory for issuing "
7107                                 "NOP mailbox command\n");
7108                 return 0;
7109         }
7110
7111         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7112         length = (sizeof(struct lpfc_mbx_nop) -
7113                   sizeof(struct lpfc_sli4_cfg_mhdr));
7114         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7115                          LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
7116
7117         mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
7118         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7119                 if (!phba->sli4_hba.intr_enable)
7120                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7121                 else
7122                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7123                 if (rc == MBX_TIMEOUT)
7124                         break;
7125                 /* Check return status */
7126                 shdr = (union lpfc_sli4_cfg_shdr *)
7127                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7128                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7129                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7130                                          &shdr->response);
7131                 if (shdr_status || shdr_add_status || rc) {
7132                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7133                                         "2520 NOP mailbox command failed "
7134                                         "status x%x add_status x%x mbx "
7135                                         "status x%x\n", shdr_status,
7136                                         shdr_add_status, rc);
7137                         break;
7138                 }
7139         }
7140
7141         if (rc != MBX_TIMEOUT)
7142                 mempool_free(mboxq, phba->mbox_mem_pool);
7143
7144         return cmdsent;
7145 }
7146
7147 /**
7148  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7149  * @phba: pointer to lpfc hba data structure.
7150  *
7151  * This routine is invoked to set up the PCI device memory space for device
7152  * with SLI-4 interface spec.
7153  *
7154  * Return codes
7155  *      0 - successful
7156  *      other values - error
7157  **/
7158 static int
7159 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7160 {
7161         struct pci_dev *pdev;
7162         unsigned long bar0map_len, bar1map_len, bar2map_len;
7163         int error = -ENODEV;
7164         uint32_t if_type;
7165
7166         /* Obtain PCI device reference */
7167         if (!phba->pcidev)
7168                 return error;
7169         else
7170                 pdev = phba->pcidev;
7171
7172         /* Set the device DMA mask size */
7173         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7174          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7175                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7176                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7177                         return error;
7178                 }
7179         }
7180
7181         /*
7182          * The BARs and register set definitions and offset locations are
7183          * dependent on the if_type.
7184          */
7185         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7186                                   &phba->sli4_hba.sli_intf.word0)) {
7187                 return error;
7188         }
7189
7190         /* There is no SLI3 failback for SLI4 devices. */
7191         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7192             LPFC_SLI_INTF_VALID) {
7193                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7194                                 "2894 SLI_INTF reg contents invalid "
7195                                 "sli_intf reg 0x%x\n",
7196                                 phba->sli4_hba.sli_intf.word0);
7197                 return error;
7198         }
7199
7200         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7201         /*
7202          * Get the bus address of SLI4 device Bar regions and the
7203          * number of bytes required by each mapping. The mapping of the
7204          * particular PCI BARs regions is dependent on the type of
7205          * SLI4 device.
7206          */
7207         if (pci_resource_start(pdev, 0)) {
7208                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7209                 bar0map_len = pci_resource_len(pdev, 0);
7210
7211                 /*
7212                  * Map SLI4 PCI Config Space Register base to a kernel virtual
7213                  * addr
7214                  */
7215                 phba->sli4_hba.conf_regs_memmap_p =
7216                         ioremap(phba->pci_bar0_map, bar0map_len);
7217                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7218                         dev_printk(KERN_ERR, &pdev->dev,
7219                                    "ioremap failed for SLI4 PCI config "
7220                                    "registers.\n");
7221                         goto out;
7222                 }
7223                 /* Set up BAR0 PCI config space register memory map */
7224                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7225         } else {
7226                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7227                 bar0map_len = pci_resource_len(pdev, 1);
7228                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7229                         dev_printk(KERN_ERR, &pdev->dev,
7230                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7231                         goto out;
7232                 }
7233                 phba->sli4_hba.conf_regs_memmap_p =
7234                                 ioremap(phba->pci_bar0_map, bar0map_len);
7235                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7236                         dev_printk(KERN_ERR, &pdev->dev,
7237                                 "ioremap failed for SLI4 PCI config "
7238                                 "registers.\n");
7239                                 goto out;
7240                 }
7241                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7242         }
7243
7244         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7245             (pci_resource_start(pdev, 2))) {
7246                 /*
7247                  * Map SLI4 if type 0 HBA Control Register base to a kernel
7248                  * virtual address and setup the registers.
7249                  */
7250                 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7251                 bar1map_len = pci_resource_len(pdev, 2);
7252                 phba->sli4_hba.ctrl_regs_memmap_p =
7253                                 ioremap(phba->pci_bar1_map, bar1map_len);
7254                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7255                         dev_printk(KERN_ERR, &pdev->dev,
7256                            "ioremap failed for SLI4 HBA control registers.\n");
7257                         goto out_iounmap_conf;
7258                 }
7259                 lpfc_sli4_bar1_register_memmap(phba);
7260         }
7261
7262         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7263             (pci_resource_start(pdev, 4))) {
7264                 /*
7265                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7266                  * virtual address and setup the registers.
7267                  */
7268                 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7269                 bar2map_len = pci_resource_len(pdev, 4);
7270                 phba->sli4_hba.drbl_regs_memmap_p =
7271                                 ioremap(phba->pci_bar2_map, bar2map_len);
7272                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7273                         dev_printk(KERN_ERR, &pdev->dev,
7274                            "ioremap failed for SLI4 HBA doorbell registers.\n");
7275                         goto out_iounmap_ctrl;
7276                 }
7277                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7278                 if (error)
7279                         goto out_iounmap_all;
7280         }
7281
7282         return 0;
7283
7284 out_iounmap_all:
7285         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7286 out_iounmap_ctrl:
7287         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7288 out_iounmap_conf:
7289         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7290 out:
7291         return error;
7292 }
7293
7294 /**
7295  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7296  * @phba: pointer to lpfc hba data structure.
7297  *
7298  * This routine is invoked to unset the PCI device memory space for device
7299  * with SLI-4 interface spec.
7300  **/
7301 static void
7302 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7303 {
7304         struct pci_dev *pdev;
7305
7306         /* Obtain PCI device reference */
7307         if (!phba->pcidev)
7308                 return;
7309         else
7310                 pdev = phba->pcidev;
7311
7312         /* Free coherent DMA memory allocated */
7313
7314         /* Unmap I/O memory space */
7315         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7316         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7317         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7318
7319         return;
7320 }
7321
7322 /**
7323  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7324  * @phba: pointer to lpfc hba data structure.
7325  *
7326  * This routine is invoked to enable the MSI-X interrupt vectors to device
7327  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7328  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7329  * invoked, enables either all or nothing, depending on the current
7330  * availability of PCI vector resources. The device driver is responsible
7331  * for calling the individual request_irq() to register each MSI-X vector
7332  * with a interrupt handler, which is done in this function. Note that
7333  * later when device is unloading, the driver should always call free_irq()
7334  * on all MSI-X vectors it has done request_irq() on before calling
7335  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7336  * will be left with MSI-X enabled and leaks its vectors.
7337  *
7338  * Return codes
7339  *   0 - successful
7340  *   other values - error
7341  **/
7342 static int
7343 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7344 {
7345         int rc, i;
7346         LPFC_MBOXQ_t *pmb;
7347
7348         /* Set up MSI-X multi-message vectors */
7349         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7350                 phba->msix_entries[i].entry = i;
7351
7352         /* Configure MSI-X capability structure */
7353         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7354                                 ARRAY_SIZE(phba->msix_entries));
7355         if (rc) {
7356                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7357                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
7358                 goto msi_fail_out;
7359         }
7360         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7361                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7362                                 "0477 MSI-X entry[%d]: vector=x%x "
7363                                 "message=%d\n", i,
7364                                 phba->msix_entries[i].vector,
7365                                 phba->msix_entries[i].entry);
7366         /*
7367          * Assign MSI-X vectors to interrupt handlers
7368          */
7369
7370         /* vector-0 is associated to slow-path handler */
7371         rc = request_irq(phba->msix_entries[0].vector,
7372                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7373                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
7374         if (rc) {
7375                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7376                                 "0421 MSI-X slow-path request_irq failed "
7377                                 "(%d)\n", rc);
7378                 goto msi_fail_out;
7379         }
7380
7381         /* vector-1 is associated to fast-path handler */
7382         rc = request_irq(phba->msix_entries[1].vector,
7383                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7384                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
7385
7386         if (rc) {
7387                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7388                                 "0429 MSI-X fast-path request_irq failed "
7389                                 "(%d)\n", rc);
7390                 goto irq_fail_out;
7391         }
7392
7393         /*
7394          * Configure HBA MSI-X attention conditions to messages
7395          */
7396         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7397
7398         if (!pmb) {
7399                 rc = -ENOMEM;
7400                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7401                                 "0474 Unable to allocate memory for issuing "
7402                                 "MBOX_CONFIG_MSI command\n");
7403                 goto mem_fail_out;
7404         }
7405         rc = lpfc_config_msi(phba, pmb);
7406         if (rc)
7407                 goto mbx_fail_out;
7408         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7409         if (rc != MBX_SUCCESS) {
7410                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7411                                 "0351 Config MSI mailbox command failed, "
7412                                 "mbxCmd x%x, mbxStatus x%x\n",
7413                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7414                 goto mbx_fail_out;
7415         }
7416
7417         /* Free memory allocated for mailbox command */
7418         mempool_free(pmb, phba->mbox_mem_pool);
7419         return rc;
7420
7421 mbx_fail_out:
7422         /* Free memory allocated for mailbox command */
7423         mempool_free(pmb, phba->mbox_mem_pool);
7424
7425 mem_fail_out:
7426         /* free the irq already requested */
7427         free_irq(phba->msix_entries[1].vector, phba);
7428
7429 irq_fail_out:
7430         /* free the irq already requested */
7431         free_irq(phba->msix_entries[0].vector, phba);
7432
7433 msi_fail_out:
7434         /* Unconfigure MSI-X capability structure */
7435         pci_disable_msix(phba->pcidev);
7436         return rc;
7437 }
7438
7439 /**
7440  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7441  * @phba: pointer to lpfc hba data structure.
7442  *
7443  * This routine is invoked to release the MSI-X vectors and then disable the
7444  * MSI-X interrupt mode to device with SLI-3 interface spec.
7445  **/
7446 static void
7447 lpfc_sli_disable_msix(struct lpfc_hba *phba)
7448 {
7449         int i;
7450
7451         /* Free up MSI-X multi-message vectors */
7452         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7453                 free_irq(phba->msix_entries[i].vector, phba);
7454         /* Disable MSI-X */
7455         pci_disable_msix(phba->pcidev);
7456
7457         return;
7458 }
7459
7460 /**
7461  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7462  * @phba: pointer to lpfc hba data structure.
7463  *
7464  * This routine is invoked to enable the MSI interrupt mode to device with
7465  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7466  * enable the MSI vector. The device driver is responsible for calling the
7467  * request_irq() to register MSI vector with a interrupt the handler, which
7468  * is done in this function.
7469  *
7470  * Return codes
7471  *      0 - successful
7472  *      other values - error
7473  */
7474 static int
7475 lpfc_sli_enable_msi(struct lpfc_hba *phba)
7476 {
7477         int rc;
7478
7479         rc = pci_enable_msi(phba->pcidev);
7480         if (!rc)
7481                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7482                                 "0462 PCI enable MSI mode success.\n");
7483         else {
7484                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7485                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
7486                 return rc;
7487         }
7488
7489         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7490                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7491         if (rc) {
7492                 pci_disable_msi(phba->pcidev);
7493                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7494                                 "0478 MSI request_irq failed (%d)\n", rc);
7495         }
7496         return rc;
7497 }
7498
7499 /**
7500  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7501  * @phba: pointer to lpfc hba data structure.
7502  *
7503  * This routine is invoked to disable the MSI interrupt mode to device with
7504  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7505  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7506  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7507  * its vector.
7508  */
7509 static void
7510 lpfc_sli_disable_msi(struct lpfc_hba *phba)
7511 {
7512         free_irq(phba->pcidev->irq, phba);
7513         pci_disable_msi(phba->pcidev);
7514         return;
7515 }
7516
7517 /**
7518  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7519  * @phba: pointer to lpfc hba data structure.
7520  *
7521  * This routine is invoked to enable device interrupt and associate driver's
7522  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7523  * spec. Depends on the interrupt mode configured to the driver, the driver
7524  * will try to fallback from the configured interrupt mode to an interrupt
7525  * mode which is supported by the platform, kernel, and device in the order
7526  * of:
7527  * MSI-X -> MSI -> IRQ.
7528  *
7529  * Return codes
7530  *   0 - successful
7531  *   other values - error
7532  **/
7533 static uint32_t
7534 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7535 {
7536         uint32_t intr_mode = LPFC_INTR_ERROR;
7537         int retval;
7538
7539         if (cfg_mode == 2) {
7540                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7541                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7542                 if (!retval) {
7543                         /* Now, try to enable MSI-X interrupt mode */
7544                         retval = lpfc_sli_enable_msix(phba);
7545                         if (!retval) {
7546                                 /* Indicate initialization to MSI-X mode */
7547                                 phba->intr_type = MSIX;
7548                                 intr_mode = 2;
7549                         }
7550                 }
7551         }
7552
7553         /* Fallback to MSI if MSI-X initialization failed */
7554         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7555                 retval = lpfc_sli_enable_msi(phba);
7556                 if (!retval) {
7557                         /* Indicate initialization to MSI mode */
7558                         phba->intr_type = MSI;
7559                         intr_mode = 1;
7560                 }
7561         }
7562
7563         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7564         if (phba->intr_type == NONE) {
7565                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7566                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7567                 if (!retval) {
7568                         /* Indicate initialization to INTx mode */
7569                         phba->intr_type = INTx;
7570                         intr_mode = 0;
7571                 }
7572         }
7573         return intr_mode;
7574 }
7575
7576 /**
7577  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7578  * @phba: pointer to lpfc hba data structure.
7579  *
7580  * This routine is invoked to disable device interrupt and disassociate the
7581  * driver's interrupt handler(s) from interrupt vector(s) to device with
7582  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7583  * release the interrupt vector(s) for the message signaled interrupt.
7584  **/
7585 static void
7586 lpfc_sli_disable_intr(struct lpfc_hba *phba)
7587 {
7588         /* Disable the currently initialized interrupt mode */
7589         if (phba->intr_type == MSIX)
7590                 lpfc_sli_disable_msix(phba);
7591         else if (phba->intr_type == MSI)
7592                 lpfc_sli_disable_msi(phba);
7593         else if (phba->intr_type == INTx)
7594                 free_irq(phba->pcidev->irq, phba);
7595
7596         /* Reset interrupt management states */
7597         phba->intr_type = NONE;
7598         phba->sli.slistat.sli_intr = 0;
7599
7600         return;
7601 }
7602
7603 /**
7604  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7605  * @phba: pointer to lpfc hba data structure.
7606  *
7607  * This routine is invoked to enable the MSI-X interrupt vectors to device
7608  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7609  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7610  * enables either all or nothing, depending on the current availability of
7611  * PCI vector resources. The device driver is responsible for calling the
7612  * individual request_irq() to register each MSI-X vector with a interrupt
7613  * handler, which is done in this function. Note that later when device is
7614  * unloading, the driver should always call free_irq() on all MSI-X vectors
7615  * it has done request_irq() on before calling pci_disable_msix(). Failure
7616  * to do so results in a BUG_ON() and a device will be left with MSI-X
7617  * enabled and leaks its vectors.
7618  *
7619  * Return codes
7620  * 0 - successful
7621  * other values - error
7622  **/
7623 static int
7624 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7625 {
7626         int vectors, rc, index;
7627
7628         /* Set up MSI-X multi-message vectors */
7629         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7630                 phba->sli4_hba.msix_entries[index].entry = index;
7631
7632         /* Configure MSI-X capability structure */
7633         vectors = phba->sli4_hba.cfg_eqn;
7634 enable_msix_vectors:
7635         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
7636                              vectors);
7637         if (rc > 1) {
7638                 vectors = rc;
7639                 goto enable_msix_vectors;
7640         } else if (rc) {
7641                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7642                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
7643                 goto msi_fail_out;
7644         }
7645
7646         /* Log MSI-X vector assignment */
7647         for (index = 0; index < vectors; index++)
7648                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7649                                 "0489 MSI-X entry[%d]: vector=x%x "
7650                                 "message=%d\n", index,
7651                                 phba->sli4_hba.msix_entries[index].vector,
7652                                 phba->sli4_hba.msix_entries[index].entry);
7653         /*
7654          * Assign MSI-X vectors to interrupt handlers
7655          */
7656         if (vectors > 1)
7657                 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7658                                  &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7659                                  LPFC_SP_DRIVER_HANDLER_NAME, phba);
7660         else
7661                 /* All Interrupts need to be handled by one EQ */
7662                 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7663                                  &lpfc_sli4_intr_handler, IRQF_SHARED,
7664                                  LPFC_DRIVER_NAME, phba);
7665         if (rc) {
7666                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7667                                 "0485 MSI-X slow-path request_irq failed "
7668                                 "(%d)\n", rc);
7669                 goto msi_fail_out;
7670         }
7671
7672         /* The rest of the vector(s) are associated to fast-path handler(s) */
7673         for (index = 1; index < vectors; index++) {
7674                 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7675                 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7676                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7677                                  &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7678                                  LPFC_FP_DRIVER_HANDLER_NAME,
7679                                  &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7680                 if (rc) {
7681                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7682                                         "0486 MSI-X fast-path (%d) "
7683                                         "request_irq failed (%d)\n", index, rc);
7684                         goto cfg_fail_out;
7685                 }
7686         }
7687         phba->sli4_hba.msix_vec_nr = vectors;
7688
7689         return rc;
7690
7691 cfg_fail_out:
7692         /* free the irq already requested */
7693         for (--index; index >= 1; index--)
7694                 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7695                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7696
7697         /* free the irq already requested */
7698         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7699
7700 msi_fail_out:
7701         /* Unconfigure MSI-X capability structure */
7702         pci_disable_msix(phba->pcidev);
7703         return rc;
7704 }
7705
7706 /**
7707  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7708  * @phba: pointer to lpfc hba data structure.
7709  *
7710  * This routine is invoked to release the MSI-X vectors and then disable the
7711  * MSI-X interrupt mode to device with SLI-4 interface spec.
7712  **/
7713 static void
7714 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7715 {
7716         int index;
7717
7718         /* Free up MSI-X multi-message vectors */
7719         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7720
7721         for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7722                 free_irq(phba->sli4_hba.msix_entries[index].vector,
7723                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7724
7725         /* Disable MSI-X */
7726         pci_disable_msix(phba->pcidev);
7727
7728         return;
7729 }
7730
7731 /**
7732  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7733  * @phba: pointer to lpfc hba data structure.
7734  *
7735  * This routine is invoked to enable the MSI interrupt mode to device with
7736  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7737  * to enable the MSI vector. The device driver is responsible for calling
7738  * the request_irq() to register MSI vector with a interrupt the handler,
7739  * which is done in this function.
7740  *
7741  * Return codes
7742  *      0 - successful
7743  *      other values - error
7744  **/
7745 static int
7746 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7747 {
7748         int rc, index;
7749
7750         rc = pci_enable_msi(phba->pcidev);
7751         if (!rc)
7752                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7753                                 "0487 PCI enable MSI mode success.\n");
7754         else {
7755                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7756                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
7757                 return rc;
7758         }
7759
7760         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7761                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7762         if (rc) {
7763                 pci_disable_msi(phba->pcidev);
7764                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7765                                 "0490 MSI request_irq failed (%d)\n", rc);
7766                 return rc;
7767         }
7768
7769         for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7770                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7771                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7772         }
7773
7774         return 0;
7775 }
7776
7777 /**
7778  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7779  * @phba: pointer to lpfc hba data structure.
7780  *
7781  * This routine is invoked to disable the MSI interrupt mode to device with
7782  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7783  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7784  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7785  * its vector.
7786  **/
7787 static void
7788 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7789 {
7790         free_irq(phba->pcidev->irq, phba);
7791         pci_disable_msi(phba->pcidev);
7792         return;
7793 }
7794
7795 /**
7796  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7797  * @phba: pointer to lpfc hba data structure.
7798  *
7799  * This routine is invoked to enable device interrupt and associate driver's
7800  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7801  * interface spec. Depends on the interrupt mode configured to the driver,
7802  * the driver will try to fallback from the configured interrupt mode to an
7803  * interrupt mode which is supported by the platform, kernel, and device in
7804  * the order of:
7805  * MSI-X -> MSI -> IRQ.
7806  *
7807  * Return codes
7808  *      0 - successful
7809  *      other values - error
7810  **/
7811 static uint32_t
7812 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7813 {
7814         uint32_t intr_mode = LPFC_INTR_ERROR;
7815         int retval, index;
7816
7817         if (cfg_mode == 2) {
7818                 /* Preparation before conf_msi mbox cmd */
7819                 retval = 0;
7820                 if (!retval) {
7821                         /* Now, try to enable MSI-X interrupt mode */
7822                         retval = lpfc_sli4_enable_msix(phba);
7823                         if (!retval) {
7824                                 /* Indicate initialization to MSI-X mode */
7825                                 phba->intr_type = MSIX;
7826                                 intr_mode = 2;
7827                         }
7828                 }
7829         }
7830
7831         /* Fallback to MSI if MSI-X initialization failed */
7832         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7833                 retval = lpfc_sli4_enable_msi(phba);
7834                 if (!retval) {
7835                         /* Indicate initialization to MSI mode */
7836                         phba->intr_type = MSI;
7837                         intr_mode = 1;
7838                 }
7839         }
7840
7841         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7842         if (phba->intr_type == NONE) {
7843                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7844                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7845                 if (!retval) {
7846                         /* Indicate initialization to INTx mode */
7847                         phba->intr_type = INTx;
7848                         intr_mode = 0;
7849                         for (index = 0; index < phba->cfg_fcp_eq_count;
7850                              index++) {
7851                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7852                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7853                         }
7854                 }
7855         }
7856         return intr_mode;
7857 }
7858
7859 /**
7860  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7861  * @phba: pointer to lpfc hba data structure.
7862  *
7863  * This routine is invoked to disable device interrupt and disassociate
7864  * the driver's interrupt handler(s) from interrupt vector(s) to device
7865  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7866  * will release the interrupt vector(s) for the message signaled interrupt.
7867  **/
7868 static void
7869 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7870 {
7871         /* Disable the currently initialized interrupt mode */
7872         if (phba->intr_type == MSIX)
7873                 lpfc_sli4_disable_msix(phba);
7874         else if (phba->intr_type == MSI)
7875                 lpfc_sli4_disable_msi(phba);
7876         else if (phba->intr_type == INTx)
7877                 free_irq(phba->pcidev->irq, phba);
7878
7879         /* Reset interrupt management states */
7880         phba->intr_type = NONE;
7881         phba->sli.slistat.sli_intr = 0;
7882
7883         return;
7884 }
7885
7886 /**
7887  * lpfc_unset_hba - Unset SLI3 hba device initialization
7888  * @phba: pointer to lpfc hba data structure.
7889  *
7890  * This routine is invoked to unset the HBA device initialization steps to
7891  * a device with SLI-3 interface spec.
7892  **/
7893 static void
7894 lpfc_unset_hba(struct lpfc_hba *phba)
7895 {
7896         struct lpfc_vport *vport = phba->pport;
7897         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7898
7899         spin_lock_irq(shost->host_lock);
7900         vport->load_flag |= FC_UNLOADING;
7901         spin_unlock_irq(shost->host_lock);
7902
7903         lpfc_stop_hba_timers(phba);
7904
7905         phba->pport->work_port_events = 0;
7906
7907         lpfc_sli_hba_down(phba);
7908
7909         lpfc_sli_brdrestart(phba);
7910
7911         lpfc_sli_disable_intr(phba);
7912
7913         return;
7914 }
7915
7916 /**
7917  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7918  * @phba: pointer to lpfc hba data structure.
7919  *
7920  * This routine is invoked to unset the HBA device initialization steps to
7921  * a device with SLI-4 interface spec.
7922  **/
7923 static void
7924 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7925 {
7926         struct lpfc_vport *vport = phba->pport;
7927         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7928
7929         spin_lock_irq(shost->host_lock);
7930         vport->load_flag |= FC_UNLOADING;
7931         spin_unlock_irq(shost->host_lock);
7932
7933         phba->pport->work_port_events = 0;
7934
7935         /* Stop the SLI4 device port */
7936         lpfc_stop_port(phba);
7937
7938         lpfc_sli4_disable_intr(phba);
7939
7940         /* Reset SLI4 HBA FCoE function */
7941         lpfc_pci_function_reset(phba);
7942
7943         return;
7944 }
7945
7946 /**
7947  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7948  * @phba: Pointer to HBA context object.
7949  *
7950  * This function is called in the SLI4 code path to wait for completion
7951  * of device's XRIs exchange busy. It will check the XRI exchange busy
7952  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7953  * that, it will check the XRI exchange busy on outstanding FCP and ELS
7954  * I/Os every 30 seconds, log error message, and wait forever. Only when
7955  * all XRI exchange busy complete, the driver unload shall proceed with
7956  * invoking the function reset ioctl mailbox command to the CNA and the
7957  * the rest of the driver unload resource release.
7958  **/
7959 static void
7960 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
7961 {
7962         int wait_time = 0;
7963         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7964         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7965
7966         while (!fcp_xri_cmpl || !els_xri_cmpl) {
7967                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
7968                         if (!fcp_xri_cmpl)
7969                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7970                                                 "2877 FCP XRI exchange busy "
7971                                                 "wait time: %d seconds.\n",
7972                                                 wait_time/1000);
7973                         if (!els_xri_cmpl)
7974                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7975                                                 "2878 ELS XRI exchange busy "
7976                                                 "wait time: %d seconds.\n",
7977                                                 wait_time/1000);
7978                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
7979                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
7980                 } else {
7981                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
7982                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
7983                 }
7984                 fcp_xri_cmpl =
7985                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7986                 els_xri_cmpl =
7987                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7988         }
7989 }
7990
7991 /**
7992  * lpfc_sli4_hba_unset - Unset the fcoe hba
7993  * @phba: Pointer to HBA context object.
7994  *
7995  * This function is called in the SLI4 code path to reset the HBA's FCoE
7996  * function. The caller is not required to hold any lock. This routine
7997  * issues PCI function reset mailbox command to reset the FCoE function.
7998  * At the end of the function, it calls lpfc_hba_down_post function to
7999  * free any pending commands.
8000  **/
8001 static void
8002 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8003 {
8004         int wait_cnt = 0;
8005         LPFC_MBOXQ_t *mboxq;
8006         struct pci_dev *pdev = phba->pcidev;
8007
8008         lpfc_stop_hba_timers(phba);
8009         phba->sli4_hba.intr_enable = 0;
8010
8011         /*
8012          * Gracefully wait out the potential current outstanding asynchronous
8013          * mailbox command.
8014          */
8015
8016         /* First, block any pending async mailbox command from posted */
8017         spin_lock_irq(&phba->hbalock);
8018         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8019         spin_unlock_irq(&phba->hbalock);
8020         /* Now, trying to wait it out if we can */
8021         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8022                 msleep(10);
8023                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8024                         break;
8025         }
8026         /* Forcefully release the outstanding mailbox command if timed out */
8027         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8028                 spin_lock_irq(&phba->hbalock);
8029                 mboxq = phba->sli.mbox_active;
8030                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8031                 __lpfc_mbox_cmpl_put(phba, mboxq);
8032                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8033                 phba->sli.mbox_active = NULL;
8034                 spin_unlock_irq(&phba->hbalock);
8035         }
8036
8037         /* Abort all iocbs associated with the hba */
8038         lpfc_sli_hba_iocb_abort(phba);
8039
8040         /* Wait for completion of device XRI exchange busy */
8041         lpfc_sli4_xri_exchange_busy_wait(phba);
8042
8043         /* Disable PCI subsystem interrupt */
8044         lpfc_sli4_disable_intr(phba);
8045
8046         /* Disable SR-IOV if enabled */
8047         if (phba->cfg_sriov_nr_virtfn)
8048                 pci_disable_sriov(pdev);
8049
8050         /* Stop kthread signal shall trigger work_done one more time */
8051         kthread_stop(phba->worker_thread);
8052
8053         /* Reset SLI4 HBA FCoE function */
8054         lpfc_pci_function_reset(phba);
8055
8056         /* Stop the SLI4 device port */
8057         phba->pport->work_port_events = 0;
8058 }
8059
8060  /**
8061  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8062  * @phba: Pointer to HBA context object.
8063  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8064  *
8065  * This function is called in the SLI4 code path to read the port's
8066  * sli4 capabilities.
8067  *
8068  * This function may be be called from any context that can block-wait
8069  * for the completion.  The expectation is that this routine is called
8070  * typically from probe_one or from the online routine.
8071  **/
8072 int
8073 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8074 {
8075         int rc;
8076         struct lpfc_mqe *mqe;
8077         struct lpfc_pc_sli4_params *sli4_params;
8078         uint32_t mbox_tmo;
8079
8080         rc = 0;
8081         mqe = &mboxq->u.mqe;
8082
8083         /* Read the port's SLI4 Parameters port capabilities */
8084         lpfc_pc_sli4_params(mboxq);
8085         if (!phba->sli4_hba.intr_enable)
8086                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8087         else {
8088                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
8089                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8090         }
8091
8092         if (unlikely(rc))
8093                 return 1;
8094
8095         sli4_params = &phba->sli4_hba.pc_sli4_params;
8096         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8097         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8098         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8099         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8100                                              &mqe->un.sli4_params);
8101         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8102                                              &mqe->un.sli4_params);
8103         sli4_params->proto_types = mqe->un.sli4_params.word3;
8104         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8105         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8106         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8107         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8108         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8109         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8110         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8111         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8112         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8113         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8114         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8115         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8116         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8117         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8118         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8119         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8120         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8121         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8122         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8123         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
8124
8125         /* Make sure that sge_supp_len can be handled by the driver */
8126         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8127                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8128
8129         return rc;
8130 }
8131
8132 /**
8133  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8134  * @phba: Pointer to HBA context object.
8135  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8136  *
8137  * This function is called in the SLI4 code path to read the port's
8138  * sli4 capabilities.
8139  *
8140  * This function may be be called from any context that can block-wait
8141  * for the completion.  The expectation is that this routine is called
8142  * typically from probe_one or from the online routine.
8143  **/
8144 int
8145 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8146 {
8147         int rc;
8148         struct lpfc_mqe *mqe = &mboxq->u.mqe;
8149         struct lpfc_pc_sli4_params *sli4_params;
8150         int length;
8151         struct lpfc_sli4_parameters *mbx_sli4_parameters;
8152
8153         /*
8154          * By default, the driver assumes the SLI4 port requires RPI
8155          * header postings.  The SLI4_PARAM response will correct this
8156          * assumption.
8157          */
8158         phba->sli4_hba.rpi_hdrs_in_use = 1;
8159
8160         /* Read the port's SLI4 Config Parameters */
8161         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8162                   sizeof(struct lpfc_sli4_cfg_mhdr));
8163         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8164                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8165                          length, LPFC_SLI4_MBX_EMBED);
8166         if (!phba->sli4_hba.intr_enable)
8167                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8168         else
8169                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq,
8170                         lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG));
8171         if (unlikely(rc))
8172                 return rc;
8173         sli4_params = &phba->sli4_hba.pc_sli4_params;
8174         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8175         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8176         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8177         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8178         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8179                                              mbx_sli4_parameters);
8180         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8181                                              mbx_sli4_parameters);
8182         if (bf_get(cfg_phwq, mbx_sli4_parameters))
8183                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8184         else
8185                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8186         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8187         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8188         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8189         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8190         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8191         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8192         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8193                                             mbx_sli4_parameters);
8194         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8195                                            mbx_sli4_parameters);
8196         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8197         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
8198
8199         /* Make sure that sge_supp_len can be handled by the driver */
8200         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8201                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8202
8203         return 0;
8204 }
8205
8206 /**
8207  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8208  * @pdev: pointer to PCI device
8209  * @pid: pointer to PCI device identifier
8210  *
8211  * This routine is to be called to attach a device with SLI-3 interface spec
8212  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8213  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8214  * information of the device and driver to see if the driver state that it can
8215  * support this kind of device. If the match is successful, the driver core
8216  * invokes this routine. If this routine determines it can claim the HBA, it
8217  * does all the initialization that it needs to do to handle the HBA properly.
8218  *
8219  * Return code
8220  *      0 - driver can claim the device
8221  *      negative value - driver can not claim the device
8222  **/
8223 static int __devinit
8224 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8225 {
8226         struct lpfc_hba   *phba;
8227         struct lpfc_vport *vport = NULL;
8228         struct Scsi_Host  *shost = NULL;
8229         int error;
8230         uint32_t cfg_mode, intr_mode;
8231
8232         /* Allocate memory for HBA structure */
8233         phba = lpfc_hba_alloc(pdev);
8234         if (!phba)
8235                 return -ENOMEM;
8236
8237         /* Perform generic PCI device enabling operation */
8238         error = lpfc_enable_pci_dev(phba);
8239         if (error) {
8240                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8241                                 "1401 Failed to enable pci device.\n");
8242                 goto out_free_phba;
8243         }
8244
8245         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8246         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8247         if (error)
8248                 goto out_disable_pci_dev;
8249
8250         /* Set up SLI-3 specific device PCI memory space */
8251         error = lpfc_sli_pci_mem_setup(phba);
8252         if (error) {
8253                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8254                                 "1402 Failed to set up pci memory space.\n");
8255                 goto out_disable_pci_dev;
8256         }
8257
8258         /* Set up phase-1 common device driver resources */
8259         error = lpfc_setup_driver_resource_phase1(phba);
8260         if (error) {
8261                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8262                                 "1403 Failed to set up driver resource.\n");
8263                 goto out_unset_pci_mem_s3;
8264         }
8265
8266         /* Set up SLI-3 specific device driver resources */
8267         error = lpfc_sli_driver_resource_setup(phba);
8268         if (error) {
8269                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8270                                 "1404 Failed to set up driver resource.\n");
8271                 goto out_unset_pci_mem_s3;
8272         }
8273
8274         /* Initialize and populate the iocb list per host */
8275         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8276         if (error) {
8277                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8278                                 "1405 Failed to initialize iocb list.\n");
8279                 goto out_unset_driver_resource_s3;
8280         }
8281
8282         /* Set up common device driver resources */
8283         error = lpfc_setup_driver_resource_phase2(phba);
8284         if (error) {
8285                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8286                                 "1406 Failed to set up driver resource.\n");
8287                 goto out_free_iocb_list;
8288         }
8289
8290         /* Create SCSI host to the physical port */
8291         error = lpfc_create_shost(phba);
8292         if (error) {
8293                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8294                                 "1407 Failed to create scsi host.\n");
8295                 goto out_unset_driver_resource;
8296         }
8297
8298         /* Configure sysfs attributes */
8299         vport = phba->pport;
8300         error = lpfc_alloc_sysfs_attr(vport);
8301         if (error) {
8302                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8303                                 "1476 Failed to allocate sysfs attr\n");
8304                 goto out_destroy_shost;
8305         }
8306
8307         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8308         /* Now, trying to enable interrupt and bring up the device */
8309         cfg_mode = phba->cfg_use_msi;
8310         while (true) {
8311                 /* Put device to a known state before enabling interrupt */
8312                 lpfc_stop_port(phba);
8313                 /* Configure and enable interrupt */
8314                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8315                 if (intr_mode == LPFC_INTR_ERROR) {
8316                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8317                                         "0431 Failed to enable interrupt.\n");
8318                         error = -ENODEV;
8319                         goto out_free_sysfs_attr;
8320                 }
8321                 /* SLI-3 HBA setup */
8322                 if (lpfc_sli_hba_setup(phba)) {
8323                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8324                                         "1477 Failed to set up hba\n");
8325                         error = -ENODEV;
8326                         goto out_remove_device;
8327                 }
8328
8329                 /* Wait 50ms for the interrupts of previous mailbox commands */
8330                 msleep(50);
8331                 /* Check active interrupts on message signaled interrupts */
8332                 if (intr_mode == 0 ||
8333                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8334                         /* Log the current active interrupt mode */
8335                         phba->intr_mode = intr_mode;
8336                         lpfc_log_intr_mode(phba, intr_mode);
8337                         break;
8338                 } else {
8339                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8340                                         "0447 Configure interrupt mode (%d) "
8341                                         "failed active interrupt test.\n",
8342                                         intr_mode);
8343                         /* Disable the current interrupt mode */
8344                         lpfc_sli_disable_intr(phba);
8345                         /* Try next level of interrupt mode */
8346                         cfg_mode = --intr_mode;
8347                 }
8348         }
8349
8350         /* Perform post initialization setup */
8351         lpfc_post_init_setup(phba);
8352
8353         /* Check if there are static vports to be created. */
8354         lpfc_create_static_vport(phba);
8355
8356         return 0;
8357
8358 out_remove_device:
8359         lpfc_unset_hba(phba);
8360 out_free_sysfs_attr:
8361         lpfc_free_sysfs_attr(vport);
8362 out_destroy_shost:
8363         lpfc_destroy_shost(phba);
8364 out_unset_driver_resource:
8365         lpfc_unset_driver_resource_phase2(phba);
8366 out_free_iocb_list:
8367         lpfc_free_iocb_list(phba);
8368 out_unset_driver_resource_s3:
8369         lpfc_sli_driver_resource_unset(phba);
8370 out_unset_pci_mem_s3:
8371         lpfc_sli_pci_mem_unset(phba);
8372 out_disable_pci_dev:
8373         lpfc_disable_pci_dev(phba);
8374         if (shost)
8375                 scsi_host_put(shost);
8376 out_free_phba:
8377         lpfc_hba_free(phba);
8378         return error;
8379 }
8380
8381 /**
8382  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8383  * @pdev: pointer to PCI device
8384  *
8385  * This routine is to be called to disattach a device with SLI-3 interface
8386  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8387  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8388  * device to be removed from the PCI subsystem properly.
8389  **/
8390 static void __devexit
8391 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8392 {
8393         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
8394         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8395         struct lpfc_vport **vports;
8396         struct lpfc_hba   *phba = vport->phba;
8397         int i;
8398         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8399
8400         spin_lock_irq(&phba->hbalock);
8401         vport->load_flag |= FC_UNLOADING;
8402         spin_unlock_irq(&phba->hbalock);
8403
8404         lpfc_free_sysfs_attr(vport);
8405
8406         /* Release all the vports against this physical port */
8407         vports = lpfc_create_vport_work_array(phba);
8408         if (vports != NULL)
8409                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8410                         fc_vport_terminate(vports[i]->fc_vport);
8411         lpfc_destroy_vport_work_array(phba, vports);
8412
8413         /* Remove FC host and then SCSI host with the physical port */
8414         fc_remove_host(shost);
8415         scsi_remove_host(shost);
8416         lpfc_cleanup(vport);
8417
8418         /*
8419          * Bring down the SLI Layer. This step disable all interrupts,
8420          * clears the rings, discards all mailbox commands, and resets
8421          * the HBA.
8422          */
8423
8424         /* HBA interrupt will be disabled after this call */
8425         lpfc_sli_hba_down(phba);
8426         /* Stop kthread signal shall trigger work_done one more time */
8427         kthread_stop(phba->worker_thread);
8428         /* Final cleanup of txcmplq and reset the HBA */
8429         lpfc_sli_brdrestart(phba);
8430
8431         lpfc_stop_hba_timers(phba);
8432         spin_lock_irq(&phba->hbalock);
8433         list_del_init(&vport->listentry);
8434         spin_unlock_irq(&phba->hbalock);
8435
8436         lpfc_debugfs_terminate(vport);
8437
8438         /* Disable SR-IOV if enabled */
8439         if (phba->cfg_sriov_nr_virtfn)
8440                 pci_disable_sriov(pdev);
8441
8442         /* Disable interrupt */
8443         lpfc_sli_disable_intr(phba);
8444
8445         pci_set_drvdata(pdev, NULL);
8446         scsi_host_put(shost);
8447
8448         /*
8449          * Call scsi_free before mem_free since scsi bufs are released to their
8450          * corresponding pools here.
8451          */
8452         lpfc_scsi_free(phba);
8453         lpfc_mem_free_all(phba);
8454
8455         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8456                           phba->hbqslimp.virt, phba->hbqslimp.phys);
8457
8458         /* Free resources associated with SLI2 interface */
8459         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8460                           phba->slim2p.virt, phba->slim2p.phys);
8461
8462         /* unmap adapter SLIM and Control Registers */
8463         iounmap(phba->ctrl_regs_memmap_p);
8464         iounmap(phba->slim_memmap_p);
8465
8466         lpfc_hba_free(phba);
8467
8468         pci_release_selected_regions(pdev, bars);
8469         pci_disable_device(pdev);
8470 }
8471
8472 /**
8473  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8474  * @pdev: pointer to PCI device
8475  * @msg: power management message
8476  *
8477  * This routine is to be called from the kernel's PCI subsystem to support
8478  * system Power Management (PM) to device with SLI-3 interface spec. When
8479  * PM invokes this method, it quiesces the device by stopping the driver's
8480  * worker thread for the device, turning off device's interrupt and DMA,
8481  * and bring the device offline. Note that as the driver implements the
8482  * minimum PM requirements to a power-aware driver's PM support for the
8483  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8484  * to the suspend() method call will be treated as SUSPEND and the driver will
8485  * fully reinitialize its device during resume() method call, the driver will
8486  * set device to PCI_D3hot state in PCI config space instead of setting it
8487  * according to the @msg provided by the PM.
8488  *
8489  * Return code
8490  *      0 - driver suspended the device
8491  *      Error otherwise
8492  **/
8493 static int
8494 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8495 {
8496         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8497         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8498
8499         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8500                         "0473 PCI device Power Management suspend.\n");
8501
8502         /* Bring down the device */
8503         lpfc_offline_prep(phba);
8504         lpfc_offline(phba);
8505         kthread_stop(phba->worker_thread);
8506
8507         /* Disable interrupt from device */
8508         lpfc_sli_disable_intr(phba);
8509
8510         /* Save device state to PCI config space */
8511         pci_save_state(pdev);
8512         pci_set_power_state(pdev, PCI_D3hot);
8513
8514         return 0;
8515 }
8516
8517 /**
8518  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8519  * @pdev: pointer to PCI device
8520  *
8521  * This routine is to be called from the kernel's PCI subsystem to support
8522  * system Power Management (PM) to device with SLI-3 interface spec. When PM
8523  * invokes this method, it restores the device's PCI config space state and
8524  * fully reinitializes the device and brings it online. Note that as the
8525  * driver implements the minimum PM requirements to a power-aware driver's
8526  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8527  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8528  * driver will fully reinitialize its device during resume() method call,
8529  * the device will be set to PCI_D0 directly in PCI config space before
8530  * restoring the state.
8531  *
8532  * Return code
8533  *      0 - driver suspended the device
8534  *      Error otherwise
8535  **/
8536 static int
8537 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8538 {
8539         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8540         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8541         uint32_t intr_mode;
8542         int error;
8543
8544         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8545                         "0452 PCI device Power Management resume.\n");
8546
8547         /* Restore device state from PCI config space */
8548         pci_set_power_state(pdev, PCI_D0);
8549         pci_restore_state(pdev);
8550
8551         /*
8552          * As the new kernel behavior of pci_restore_state() API call clears
8553          * device saved_state flag, need to save the restored state again.
8554          */
8555         pci_save_state(pdev);
8556
8557         if (pdev->is_busmaster)
8558                 pci_set_master(pdev);
8559
8560         /* Startup the kernel thread for this host adapter. */
8561         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8562                                         "lpfc_worker_%d", phba->brd_no);
8563         if (IS_ERR(phba->worker_thread)) {
8564                 error = PTR_ERR(phba->worker_thread);
8565                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8566                                 "0434 PM resume failed to start worker "
8567                                 "thread: error=x%x.\n", error);
8568                 return error;
8569         }
8570
8571         /* Configure and enable interrupt */
8572         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8573         if (intr_mode == LPFC_INTR_ERROR) {
8574                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8575                                 "0430 PM resume Failed to enable interrupt\n");
8576                 return -EIO;
8577         } else
8578                 phba->intr_mode = intr_mode;
8579
8580         /* Restart HBA and bring it online */
8581         lpfc_sli_brdrestart(phba);
8582         lpfc_online(phba);
8583
8584         /* Log the current active interrupt mode */
8585         lpfc_log_intr_mode(phba, phba->intr_mode);
8586
8587         return 0;
8588 }
8589
8590 /**
8591  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8592  * @phba: pointer to lpfc hba data structure.
8593  *
8594  * This routine is called to prepare the SLI3 device for PCI slot recover. It
8595  * aborts all the outstanding SCSI I/Os to the pci device.
8596  **/
8597 static void
8598 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8599 {
8600         struct lpfc_sli *psli = &phba->sli;
8601         struct lpfc_sli_ring  *pring;
8602
8603         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8604                         "2723 PCI channel I/O abort preparing for recovery\n");
8605
8606         /*
8607          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8608          * and let the SCSI mid-layer to retry them to recover.
8609          */
8610         pring = &psli->ring[psli->fcp_ring];
8611         lpfc_sli_abort_iocb_ring(phba, pring);
8612 }
8613
8614 /**
8615  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8616  * @phba: pointer to lpfc hba data structure.
8617  *
8618  * This routine is called to prepare the SLI3 device for PCI slot reset. It
8619  * disables the device interrupt and pci device, and aborts the internal FCP
8620  * pending I/Os.
8621  **/
8622 static void
8623 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8624 {
8625         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8626                         "2710 PCI channel disable preparing for reset\n");
8627
8628         /* Block any management I/Os to the device */
8629         lpfc_block_mgmt_io(phba);
8630
8631         /* Block all SCSI devices' I/Os on the host */
8632         lpfc_scsi_dev_block(phba);
8633
8634         /* stop all timers */
8635         lpfc_stop_hba_timers(phba);
8636
8637         /* Disable interrupt and pci device */
8638         lpfc_sli_disable_intr(phba);
8639         pci_disable_device(phba->pcidev);
8640
8641         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8642         lpfc_sli_flush_fcp_rings(phba);
8643 }
8644
8645 /**
8646  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8647  * @phba: pointer to lpfc hba data structure.
8648  *
8649  * This routine is called to prepare the SLI3 device for PCI slot permanently
8650  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8651  * pending I/Os.
8652  **/
8653 static void
8654 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8655 {
8656         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8657                         "2711 PCI channel permanent disable for failure\n");
8658         /* Block all SCSI devices' I/Os on the host */
8659         lpfc_scsi_dev_block(phba);
8660
8661         /* stop all timers */
8662         lpfc_stop_hba_timers(phba);
8663
8664         /* Clean up all driver's outstanding SCSI I/Os */
8665         lpfc_sli_flush_fcp_rings(phba);
8666 }
8667
8668 /**
8669  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8670  * @pdev: pointer to PCI device.
8671  * @state: the current PCI connection state.
8672  *
8673  * This routine is called from the PCI subsystem for I/O error handling to
8674  * device with SLI-3 interface spec. This function is called by the PCI
8675  * subsystem after a PCI bus error affecting this device has been detected.
8676  * When this function is invoked, it will need to stop all the I/Os and
8677  * interrupt(s) to the device. Once that is done, it will return
8678  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8679  * as desired.
8680  *
8681  * Return codes
8682  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
8683  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8684  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8685  **/
8686 static pci_ers_result_t
8687 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8688 {
8689         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8690         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8691
8692         switch (state) {
8693         case pci_channel_io_normal:
8694                 /* Non-fatal error, prepare for recovery */
8695                 lpfc_sli_prep_dev_for_recover(phba);
8696                 return PCI_ERS_RESULT_CAN_RECOVER;
8697         case pci_channel_io_frozen:
8698                 /* Fatal error, prepare for slot reset */
8699                 lpfc_sli_prep_dev_for_reset(phba);
8700                 return PCI_ERS_RESULT_NEED_RESET;
8701         case pci_channel_io_perm_failure:
8702                 /* Permanent failure, prepare for device down */
8703                 lpfc_sli_prep_dev_for_perm_failure(phba);
8704                 return PCI_ERS_RESULT_DISCONNECT;
8705         default:
8706                 /* Unknown state, prepare and request slot reset */
8707                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8708                                 "0472 Unknown PCI error state: x%x\n", state);
8709                 lpfc_sli_prep_dev_for_reset(phba);
8710                 return PCI_ERS_RESULT_NEED_RESET;
8711         }
8712 }
8713
8714 /**
8715  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8716  * @pdev: pointer to PCI device.
8717  *
8718  * This routine is called from the PCI subsystem for error handling to
8719  * device with SLI-3 interface spec. This is called after PCI bus has been
8720  * reset to restart the PCI card from scratch, as if from a cold-boot.
8721  * During the PCI subsystem error recovery, after driver returns
8722  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8723  * recovery and then call this routine before calling the .resume method
8724  * to recover the device. This function will initialize the HBA device,
8725  * enable the interrupt, but it will just put the HBA to offline state
8726  * without passing any I/O traffic.
8727  *
8728  * Return codes
8729  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8730  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8731  */
8732 static pci_ers_result_t
8733 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8734 {
8735         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8736         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8737         struct lpfc_sli *psli = &phba->sli;
8738         uint32_t intr_mode;
8739
8740         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8741         if (pci_enable_device_mem(pdev)) {
8742                 printk(KERN_ERR "lpfc: Cannot re-enable "
8743                         "PCI device after reset.\n");
8744                 return PCI_ERS_RESULT_DISCONNECT;
8745         }
8746
8747         pci_restore_state(pdev);
8748
8749         /*
8750          * As the new kernel behavior of pci_restore_state() API call clears
8751          * device saved_state flag, need to save the restored state again.
8752          */
8753         pci_save_state(pdev);
8754
8755         if (pdev->is_busmaster)
8756                 pci_set_master(pdev);
8757
8758         spin_lock_irq(&phba->hbalock);
8759         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8760         spin_unlock_irq(&phba->hbalock);
8761
8762         /* Configure and enable interrupt */
8763         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8764         if (intr_mode == LPFC_INTR_ERROR) {
8765                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8766                                 "0427 Cannot re-enable interrupt after "
8767                                 "slot reset.\n");
8768                 return PCI_ERS_RESULT_DISCONNECT;
8769         } else
8770                 phba->intr_mode = intr_mode;
8771
8772         /* Take device offline, it will perform cleanup */
8773         lpfc_offline_prep(phba);
8774         lpfc_offline(phba);
8775         lpfc_sli_brdrestart(phba);
8776
8777         /* Log the current active interrupt mode */
8778         lpfc_log_intr_mode(phba, phba->intr_mode);
8779
8780         return PCI_ERS_RESULT_RECOVERED;
8781 }
8782
8783 /**
8784  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8785  * @pdev: pointer to PCI device
8786  *
8787  * This routine is called from the PCI subsystem for error handling to device
8788  * with SLI-3 interface spec. It is called when kernel error recovery tells
8789  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8790  * error recovery. After this call, traffic can start to flow from this device
8791  * again.
8792  */
8793 static void
8794 lpfc_io_resume_s3(struct pci_dev *pdev)
8795 {
8796         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8797         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8798
8799         /* Bring device online, it will be no-op for non-fatal error resume */
8800         lpfc_online(phba);
8801
8802         /* Clean up Advanced Error Reporting (AER) if needed */
8803         if (phba->hba_flag & HBA_AER_ENABLED)
8804                 pci_cleanup_aer_uncorrect_error_status(pdev);
8805 }
8806
8807 /**
8808  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8809  * @phba: pointer to lpfc hba data structure.
8810  *
8811  * returns the number of ELS/CT IOCBs to reserve
8812  **/
8813 int
8814 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8815 {
8816         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8817
8818         if (phba->sli_rev == LPFC_SLI_REV4) {
8819                 if (max_xri <= 100)
8820                         return 10;
8821                 else if (max_xri <= 256)
8822                         return 25;
8823                 else if (max_xri <= 512)
8824                         return 50;
8825                 else if (max_xri <= 1024)
8826                         return 100;
8827                 else
8828                         return 150;
8829         } else
8830                 return 0;
8831 }
8832
8833 /**
8834  * lpfc_write_firmware - attempt to write a firmware image to the port
8835  * @phba: pointer to lpfc hba data structure.
8836  * @fw: pointer to firmware image returned from request_firmware.
8837  *
8838  * returns the number of bytes written if write is successful.
8839  * returns a negative error value if there were errors.
8840  * returns 0 if firmware matches currently active firmware on port.
8841  **/
8842 int
8843 lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
8844 {
8845         char fwrev[32];
8846         struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
8847         struct list_head dma_buffer_list;
8848         int i, rc = 0;
8849         struct lpfc_dmabuf *dmabuf, *next;
8850         uint32_t offset = 0, temp_offset = 0;
8851
8852         INIT_LIST_HEAD(&dma_buffer_list);
8853         if ((image->magic_number != LPFC_GROUP_OJECT_MAGIC_NUM) ||
8854             (bf_get(lpfc_grp_hdr_file_type, image) != LPFC_FILE_TYPE_GROUP) ||
8855             (bf_get(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
8856             (image->size != fw->size)) {
8857                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8858                                 "3022 Invalid FW image found. "
8859                                 "Magic:%d Type:%x ID:%x\n",
8860                                 image->magic_number,
8861                                 bf_get(lpfc_grp_hdr_file_type, image),
8862                                 bf_get(lpfc_grp_hdr_id, image));
8863                 return -EINVAL;
8864         }
8865         lpfc_decode_firmware_rev(phba, fwrev, 1);
8866         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
8867                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8868                                 "3023 Updating Firmware. Current Version:%s "
8869                                 "New Version:%s\n",
8870                                 fwrev, image->revision);
8871                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
8872                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
8873                                          GFP_KERNEL);
8874                         if (!dmabuf) {
8875                                 rc = -ENOMEM;
8876                                 goto out;
8877                         }
8878                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8879                                                           SLI4_PAGE_SIZE,
8880                                                           &dmabuf->phys,
8881                                                           GFP_KERNEL);
8882                         if (!dmabuf->virt) {
8883                                 kfree(dmabuf);
8884                                 rc = -ENOMEM;
8885                                 goto out;
8886                         }
8887                         list_add_tail(&dmabuf->list, &dma_buffer_list);
8888                 }
8889                 while (offset < fw->size) {
8890                         temp_offset = offset;
8891                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
8892                                 if (offset + SLI4_PAGE_SIZE > fw->size) {
8893                                         temp_offset += fw->size - offset;
8894                                         memcpy(dmabuf->virt,
8895                                                fw->data + temp_offset,
8896                                                fw->size - offset);
8897                                         break;
8898                                 }
8899                                 memcpy(dmabuf->virt, fw->data + temp_offset,
8900                                        SLI4_PAGE_SIZE);
8901                                 temp_offset += SLI4_PAGE_SIZE;
8902                         }
8903                         rc = lpfc_wr_object(phba, &dma_buffer_list,
8904                                     (fw->size - offset), &offset);
8905                         if (rc) {
8906                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8907                                                 "3024 Firmware update failed. "
8908                                                 "%d\n", rc);
8909                                 goto out;
8910                         }
8911                 }
8912                 rc = offset;
8913         }
8914 out:
8915         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
8916                 list_del(&dmabuf->list);
8917                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
8918                                   dmabuf->virt, dmabuf->phys);
8919                 kfree(dmabuf);
8920         }
8921         return rc;
8922 }
8923
8924 /**
8925  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8926  * @pdev: pointer to PCI device
8927  * @pid: pointer to PCI device identifier
8928  *
8929  * This routine is called from the kernel's PCI subsystem to device with
8930  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8931  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8932  * information of the device and driver to see if the driver state that it
8933  * can support this kind of device. If the match is successful, the driver
8934  * core invokes this routine. If this routine determines it can claim the HBA,
8935  * it does all the initialization that it needs to do to handle the HBA
8936  * properly.
8937  *
8938  * Return code
8939  *      0 - driver can claim the device
8940  *      negative value - driver can not claim the device
8941  **/
8942 static int __devinit
8943 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8944 {
8945         struct lpfc_hba   *phba;
8946         struct lpfc_vport *vport = NULL;
8947         struct Scsi_Host  *shost = NULL;
8948         int error;
8949         uint32_t cfg_mode, intr_mode;
8950         int mcnt;
8951         int adjusted_fcp_eq_count;
8952         int fcp_qidx;
8953         const struct firmware *fw;
8954         uint8_t file_name[16];
8955
8956         /* Allocate memory for HBA structure */
8957         phba = lpfc_hba_alloc(pdev);
8958         if (!phba)
8959                 return -ENOMEM;
8960
8961         /* Perform generic PCI device enabling operation */
8962         error = lpfc_enable_pci_dev(phba);
8963         if (error) {
8964                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8965                                 "1409 Failed to enable pci device.\n");
8966                 goto out_free_phba;
8967         }
8968
8969         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8970         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
8971         if (error)
8972                 goto out_disable_pci_dev;
8973
8974         /* Set up SLI-4 specific device PCI memory space */
8975         error = lpfc_sli4_pci_mem_setup(phba);
8976         if (error) {
8977                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8978                                 "1410 Failed to set up pci memory space.\n");
8979                 goto out_disable_pci_dev;
8980         }
8981
8982         /* Set up phase-1 common device driver resources */
8983         error = lpfc_setup_driver_resource_phase1(phba);
8984         if (error) {
8985                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8986                                 "1411 Failed to set up driver resource.\n");
8987                 goto out_unset_pci_mem_s4;
8988         }
8989
8990         /* Set up SLI-4 Specific device driver resources */
8991         error = lpfc_sli4_driver_resource_setup(phba);
8992         if (error) {
8993                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8994                                 "1412 Failed to set up driver resource.\n");
8995                 goto out_unset_pci_mem_s4;
8996         }
8997
8998         /* Initialize and populate the iocb list per host */
8999
9000         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9001                         "2821 initialize iocb list %d.\n",
9002                         phba->cfg_iocb_cnt*1024);
9003         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9004
9005         if (error) {
9006                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9007                                 "1413 Failed to initialize iocb list.\n");
9008                 goto out_unset_driver_resource_s4;
9009         }
9010
9011         INIT_LIST_HEAD(&phba->active_rrq_list);
9012
9013         /* Set up common device driver resources */
9014         error = lpfc_setup_driver_resource_phase2(phba);
9015         if (error) {
9016                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9017                                 "1414 Failed to set up driver resource.\n");
9018                 goto out_free_iocb_list;
9019         }
9020
9021         /* Create SCSI host to the physical port */
9022         error = lpfc_create_shost(phba);
9023         if (error) {
9024                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9025                                 "1415 Failed to create scsi host.\n");
9026                 goto out_unset_driver_resource;
9027         }
9028
9029         /* Configure sysfs attributes */
9030         vport = phba->pport;
9031         error = lpfc_alloc_sysfs_attr(vport);
9032         if (error) {
9033                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9034                                 "1416 Failed to allocate sysfs attr\n");
9035                 goto out_destroy_shost;
9036         }
9037
9038         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9039         /* Now, trying to enable interrupt and bring up the device */
9040         cfg_mode = phba->cfg_use_msi;
9041         while (true) {
9042                 /* Put device to a known state before enabling interrupt */
9043                 lpfc_stop_port(phba);
9044                 /* Configure and enable interrupt */
9045                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
9046                 if (intr_mode == LPFC_INTR_ERROR) {
9047                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9048                                         "0426 Failed to enable interrupt.\n");
9049                         error = -ENODEV;
9050                         goto out_free_sysfs_attr;
9051                 }
9052                 /* Default to single EQ for non-MSI-X */
9053                 if (phba->intr_type != MSIX)
9054                         adjusted_fcp_eq_count = 0;
9055                 else if (phba->sli4_hba.msix_vec_nr <
9056                                         phba->cfg_fcp_eq_count + 1)
9057                         adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
9058                 else
9059                         adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
9060                 /* Free unused EQs */
9061                 for (fcp_qidx = adjusted_fcp_eq_count;
9062                      fcp_qidx < phba->cfg_fcp_eq_count;
9063                      fcp_qidx++) {
9064                         lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
9065                         /* do not delete the first fcp_cq */
9066                         if (fcp_qidx)
9067                                 lpfc_sli4_queue_free(
9068                                         phba->sli4_hba.fcp_cq[fcp_qidx]);
9069                 }
9070                 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
9071                 /* Set up SLI-4 HBA */
9072                 if (lpfc_sli4_hba_setup(phba)) {
9073                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9074                                         "1421 Failed to set up hba\n");
9075                         error = -ENODEV;
9076                         goto out_disable_intr;
9077                 }
9078
9079                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9080                 if (intr_mode != 0)
9081                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9082                                                             LPFC_ACT_INTR_CNT);
9083
9084                 /* Check active interrupts received only for MSI/MSI-X */
9085                 if (intr_mode == 0 ||
9086                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
9087                         /* Log the current active interrupt mode */
9088                         phba->intr_mode = intr_mode;
9089                         lpfc_log_intr_mode(phba, intr_mode);
9090                         break;
9091                 }
9092                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9093                                 "0451 Configure interrupt mode (%d) "
9094                                 "failed active interrupt test.\n",
9095                                 intr_mode);
9096                 /* Unset the previous SLI-4 HBA setup. */
9097                 /*
9098                  * TODO:  Is this operation compatible with IF TYPE 2
9099                  * devices?  All port state is deleted and cleared.
9100                  */
9101                 lpfc_sli4_unset_hba(phba);
9102                 /* Try next level of interrupt mode */
9103                 cfg_mode = --intr_mode;
9104         }
9105
9106         /* Perform post initialization setup */
9107         lpfc_post_init_setup(phba);
9108
9109         /* check for firmware upgrade or downgrade */
9110         snprintf(file_name, 16, "%s.grp", phba->ModelName);
9111         error = request_firmware(&fw, file_name, &phba->pcidev->dev);
9112         if (!error) {
9113                 lpfc_write_firmware(phba, fw);
9114                 release_firmware(fw);
9115         }
9116
9117         /* Check if there are static vports to be created. */
9118         lpfc_create_static_vport(phba);
9119
9120         return 0;
9121
9122 out_disable_intr:
9123         lpfc_sli4_disable_intr(phba);
9124 out_free_sysfs_attr:
9125         lpfc_free_sysfs_attr(vport);
9126 out_destroy_shost:
9127         lpfc_destroy_shost(phba);
9128 out_unset_driver_resource:
9129         lpfc_unset_driver_resource_phase2(phba);
9130 out_free_iocb_list:
9131         lpfc_free_iocb_list(phba);
9132 out_unset_driver_resource_s4:
9133         lpfc_sli4_driver_resource_unset(phba);
9134 out_unset_pci_mem_s4:
9135         lpfc_sli4_pci_mem_unset(phba);
9136 out_disable_pci_dev:
9137         lpfc_disable_pci_dev(phba);
9138         if (shost)
9139                 scsi_host_put(shost);
9140 out_free_phba:
9141         lpfc_hba_free(phba);
9142         return error;
9143 }
9144
9145 /**
9146  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9147  * @pdev: pointer to PCI device
9148  *
9149  * This routine is called from the kernel's PCI subsystem to device with
9150  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9151  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9152  * device to be removed from the PCI subsystem properly.
9153  **/
9154 static void __devexit
9155 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
9156 {
9157         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9158         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9159         struct lpfc_vport **vports;
9160         struct lpfc_hba *phba = vport->phba;
9161         int i;
9162
9163         /* Mark the device unloading flag */
9164         spin_lock_irq(&phba->hbalock);
9165         vport->load_flag |= FC_UNLOADING;
9166         spin_unlock_irq(&phba->hbalock);
9167
9168         /* Free the HBA sysfs attributes */
9169         lpfc_free_sysfs_attr(vport);
9170
9171         /* Release all the vports against this physical port */
9172         vports = lpfc_create_vport_work_array(phba);
9173         if (vports != NULL)
9174                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
9175                         fc_vport_terminate(vports[i]->fc_vport);
9176         lpfc_destroy_vport_work_array(phba, vports);
9177
9178         /* Remove FC host and then SCSI host with the physical port */
9179         fc_remove_host(shost);
9180         scsi_remove_host(shost);
9181
9182         /* Perform cleanup on the physical port */
9183         lpfc_cleanup(vport);
9184
9185         /*
9186          * Bring down the SLI Layer. This step disables all interrupts,
9187          * clears the rings, discards all mailbox commands, and resets
9188          * the HBA FCoE function.
9189          */
9190         lpfc_debugfs_terminate(vport);
9191         lpfc_sli4_hba_unset(phba);
9192
9193         spin_lock_irq(&phba->hbalock);
9194         list_del_init(&vport->listentry);
9195         spin_unlock_irq(&phba->hbalock);
9196
9197         /* Perform scsi free before driver resource_unset since scsi
9198          * buffers are released to their corresponding pools here.
9199          */
9200         lpfc_scsi_free(phba);
9201         lpfc_sli4_driver_resource_unset(phba);
9202
9203         /* Unmap adapter Control and Doorbell registers */
9204         lpfc_sli4_pci_mem_unset(phba);
9205
9206         /* Release PCI resources and disable device's PCI function */
9207         scsi_host_put(shost);
9208         lpfc_disable_pci_dev(phba);
9209
9210         /* Finally, free the driver's device data structure */
9211         lpfc_hba_free(phba);
9212
9213         return;
9214 }
9215
9216 /**
9217  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9218  * @pdev: pointer to PCI device
9219  * @msg: power management message
9220  *
9221  * This routine is called from the kernel's PCI subsystem to support system
9222  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9223  * this method, it quiesces the device by stopping the driver's worker
9224  * thread for the device, turning off device's interrupt and DMA, and bring
9225  * the device offline. Note that as the driver implements the minimum PM
9226  * requirements to a power-aware driver's PM support for suspend/resume -- all
9227  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9228  * method call will be treated as SUSPEND and the driver will fully
9229  * reinitialize its device during resume() method call, the driver will set
9230  * device to PCI_D3hot state in PCI config space instead of setting it
9231  * according to the @msg provided by the PM.
9232  *
9233  * Return code
9234  *      0 - driver suspended the device
9235  *      Error otherwise
9236  **/
9237 static int
9238 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
9239 {
9240         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9241         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9242
9243         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9244                         "2843 PCI device Power Management suspend.\n");
9245
9246         /* Bring down the device */
9247         lpfc_offline_prep(phba);
9248         lpfc_offline(phba);
9249         kthread_stop(phba->worker_thread);
9250
9251         /* Disable interrupt from device */
9252         lpfc_sli4_disable_intr(phba);
9253
9254         /* Save device state to PCI config space */
9255         pci_save_state(pdev);
9256         pci_set_power_state(pdev, PCI_D3hot);
9257
9258         return 0;
9259 }
9260
9261 /**
9262  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9263  * @pdev: pointer to PCI device
9264  *
9265  * This routine is called from the kernel's PCI subsystem to support system
9266  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9267  * this method, it restores the device's PCI config space state and fully
9268  * reinitializes the device and brings it online. Note that as the driver
9269  * implements the minimum PM requirements to a power-aware driver's PM for
9270  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9271  * to the suspend() method call will be treated as SUSPEND and the driver
9272  * will fully reinitialize its device during resume() method call, the device
9273  * will be set to PCI_D0 directly in PCI config space before restoring the
9274  * state.
9275  *
9276  * Return code
9277  *      0 - driver suspended the device
9278  *      Error otherwise
9279  **/
9280 static int
9281 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
9282 {
9283         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9284         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9285         uint32_t intr_mode;
9286         int error;
9287
9288         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9289                         "0292 PCI device Power Management resume.\n");
9290
9291         /* Restore device state from PCI config space */
9292         pci_set_power_state(pdev, PCI_D0);
9293         pci_restore_state(pdev);
9294
9295         /*
9296          * As the new kernel behavior of pci_restore_state() API call clears
9297          * device saved_state flag, need to save the restored state again.
9298          */
9299         pci_save_state(pdev);
9300
9301         if (pdev->is_busmaster)
9302                 pci_set_master(pdev);
9303
9304          /* Startup the kernel thread for this host adapter. */
9305         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9306                                         "lpfc_worker_%d", phba->brd_no);
9307         if (IS_ERR(phba->worker_thread)) {
9308                 error = PTR_ERR(phba->worker_thread);
9309                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9310                                 "0293 PM resume failed to start worker "
9311                                 "thread: error=x%x.\n", error);
9312                 return error;
9313         }
9314
9315         /* Configure and enable interrupt */
9316         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9317         if (intr_mode == LPFC_INTR_ERROR) {
9318                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9319                                 "0294 PM resume Failed to enable interrupt\n");
9320                 return -EIO;
9321         } else
9322                 phba->intr_mode = intr_mode;
9323
9324         /* Restart HBA and bring it online */
9325         lpfc_sli_brdrestart(phba);
9326         lpfc_online(phba);
9327
9328         /* Log the current active interrupt mode */
9329         lpfc_log_intr_mode(phba, phba->intr_mode);
9330
9331         return 0;
9332 }
9333
9334 /**
9335  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9336  * @phba: pointer to lpfc hba data structure.
9337  *
9338  * This routine is called to prepare the SLI4 device for PCI slot recover. It
9339  * aborts all the outstanding SCSI I/Os to the pci device.
9340  **/
9341 static void
9342 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9343 {
9344         struct lpfc_sli *psli = &phba->sli;
9345         struct lpfc_sli_ring  *pring;
9346
9347         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9348                         "2828 PCI channel I/O abort preparing for recovery\n");
9349         /*
9350          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9351          * and let the SCSI mid-layer to retry them to recover.
9352          */
9353         pring = &psli->ring[psli->fcp_ring];
9354         lpfc_sli_abort_iocb_ring(phba, pring);
9355 }
9356
9357 /**
9358  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9359  * @phba: pointer to lpfc hba data structure.
9360  *
9361  * This routine is called to prepare the SLI4 device for PCI slot reset. It
9362  * disables the device interrupt and pci device, and aborts the internal FCP
9363  * pending I/Os.
9364  **/
9365 static void
9366 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9367 {
9368         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9369                         "2826 PCI channel disable preparing for reset\n");
9370
9371         /* Block any management I/Os to the device */
9372         lpfc_block_mgmt_io(phba);
9373
9374         /* Block all SCSI devices' I/Os on the host */
9375         lpfc_scsi_dev_block(phba);
9376
9377         /* stop all timers */
9378         lpfc_stop_hba_timers(phba);
9379
9380         /* Disable interrupt and pci device */
9381         lpfc_sli4_disable_intr(phba);
9382         pci_disable_device(phba->pcidev);
9383
9384         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9385         lpfc_sli_flush_fcp_rings(phba);
9386 }
9387
9388 /**
9389  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9390  * @phba: pointer to lpfc hba data structure.
9391  *
9392  * This routine is called to prepare the SLI4 device for PCI slot permanently
9393  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9394  * pending I/Os.
9395  **/
9396 static void
9397 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9398 {
9399         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9400                         "2827 PCI channel permanent disable for failure\n");
9401
9402         /* Block all SCSI devices' I/Os on the host */
9403         lpfc_scsi_dev_block(phba);
9404
9405         /* stop all timers */
9406         lpfc_stop_hba_timers(phba);
9407
9408         /* Clean up all driver's outstanding SCSI I/Os */
9409         lpfc_sli_flush_fcp_rings(phba);
9410 }
9411
9412 /**
9413  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9414  * @pdev: pointer to PCI device.
9415  * @state: the current PCI connection state.
9416  *
9417  * This routine is called from the PCI subsystem for error handling to device
9418  * with SLI-4 interface spec. This function is called by the PCI subsystem
9419  * after a PCI bus error affecting this device has been detected. When this
9420  * function is invoked, it will need to stop all the I/Os and interrupt(s)
9421  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9422  * for the PCI subsystem to perform proper recovery as desired.
9423  *
9424  * Return codes
9425  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9426  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9427  **/
9428 static pci_ers_result_t
9429 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
9430 {
9431         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9432         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9433
9434         switch (state) {
9435         case pci_channel_io_normal:
9436                 /* Non-fatal error, prepare for recovery */
9437                 lpfc_sli4_prep_dev_for_recover(phba);
9438                 return PCI_ERS_RESULT_CAN_RECOVER;
9439         case pci_channel_io_frozen:
9440                 /* Fatal error, prepare for slot reset */
9441                 lpfc_sli4_prep_dev_for_reset(phba);
9442                 return PCI_ERS_RESULT_NEED_RESET;
9443         case pci_channel_io_perm_failure:
9444                 /* Permanent failure, prepare for device down */
9445                 lpfc_sli4_prep_dev_for_perm_failure(phba);
9446                 return PCI_ERS_RESULT_DISCONNECT;
9447         default:
9448                 /* Unknown state, prepare and request slot reset */
9449                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9450                                 "2825 Unknown PCI error state: x%x\n", state);
9451                 lpfc_sli4_prep_dev_for_reset(phba);
9452                 return PCI_ERS_RESULT_NEED_RESET;
9453         }
9454 }
9455
9456 /**
9457  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9458  * @pdev: pointer to PCI device.
9459  *
9460  * This routine is called from the PCI subsystem for error handling to device
9461  * with SLI-4 interface spec. It is called after PCI bus has been reset to
9462  * restart the PCI card from scratch, as if from a cold-boot. During the
9463  * PCI subsystem error recovery, after the driver returns
9464  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9465  * recovery and then call this routine before calling the .resume method to
9466  * recover the device. This function will initialize the HBA device, enable
9467  * the interrupt, but it will just put the HBA to offline state without
9468  * passing any I/O traffic.
9469  *
9470  * Return codes
9471  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9472  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9473  */
9474 static pci_ers_result_t
9475 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
9476 {
9477         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9478         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9479         struct lpfc_sli *psli = &phba->sli;
9480         uint32_t intr_mode;
9481
9482         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9483         if (pci_enable_device_mem(pdev)) {
9484                 printk(KERN_ERR "lpfc: Cannot re-enable "
9485                         "PCI device after reset.\n");
9486                 return PCI_ERS_RESULT_DISCONNECT;
9487         }
9488
9489         pci_restore_state(pdev);
9490         if (pdev->is_busmaster)
9491                 pci_set_master(pdev);
9492
9493         spin_lock_irq(&phba->hbalock);
9494         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9495         spin_unlock_irq(&phba->hbalock);
9496
9497         /* Configure and enable interrupt */
9498         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9499         if (intr_mode == LPFC_INTR_ERROR) {
9500                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9501                                 "2824 Cannot re-enable interrupt after "
9502                                 "slot reset.\n");
9503                 return PCI_ERS_RESULT_DISCONNECT;
9504         } else
9505                 phba->intr_mode = intr_mode;
9506
9507         /* Log the current active interrupt mode */
9508         lpfc_log_intr_mode(phba, phba->intr_mode);
9509
9510         return PCI_ERS_RESULT_RECOVERED;
9511 }
9512
9513 /**
9514  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9515  * @pdev: pointer to PCI device
9516  *
9517  * This routine is called from the PCI subsystem for error handling to device
9518  * with SLI-4 interface spec. It is called when kernel error recovery tells
9519  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9520  * error recovery. After this call, traffic can start to flow from this device
9521  * again.
9522  **/
9523 static void
9524 lpfc_io_resume_s4(struct pci_dev *pdev)
9525 {
9526         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9527         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9528
9529         /*
9530          * In case of slot reset, as function reset is performed through
9531          * mailbox command which needs DMA to be enabled, this operation
9532          * has to be moved to the io resume phase. Taking device offline
9533          * will perform the necessary cleanup.
9534          */
9535         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9536                 /* Perform device reset */
9537                 lpfc_offline_prep(phba);
9538                 lpfc_offline(phba);
9539                 lpfc_sli_brdrestart(phba);
9540                 /* Bring the device back online */
9541                 lpfc_online(phba);
9542         }
9543
9544         /* Clean up Advanced Error Reporting (AER) if needed */
9545         if (phba->hba_flag & HBA_AER_ENABLED)
9546                 pci_cleanup_aer_uncorrect_error_status(pdev);
9547 }
9548
9549 /**
9550  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9551  * @pdev: pointer to PCI device
9552  * @pid: pointer to PCI device identifier
9553  *
9554  * This routine is to be registered to the kernel's PCI subsystem. When an
9555  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9556  * at PCI device-specific information of the device and driver to see if the
9557  * driver state that it can support this kind of device. If the match is
9558  * successful, the driver core invokes this routine. This routine dispatches
9559  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9560  * do all the initialization that it needs to do to handle the HBA device
9561  * properly.
9562  *
9563  * Return code
9564  *      0 - driver can claim the device
9565  *      negative value - driver can not claim the device
9566  **/
9567 static int __devinit
9568 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9569 {
9570         int rc;
9571         struct lpfc_sli_intf intf;
9572
9573         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
9574                 return -ENODEV;
9575
9576         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
9577             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
9578                 rc = lpfc_pci_probe_one_s4(pdev, pid);
9579         else
9580                 rc = lpfc_pci_probe_one_s3(pdev, pid);
9581
9582         return rc;
9583 }
9584
9585 /**
9586  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9587  * @pdev: pointer to PCI device
9588  *
9589  * This routine is to be registered to the kernel's PCI subsystem. When an
9590  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9591  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9592  * remove routine, which will perform all the necessary cleanup for the
9593  * device to be removed from the PCI subsystem properly.
9594  **/
9595 static void __devexit
9596 lpfc_pci_remove_one(struct pci_dev *pdev)
9597 {
9598         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9599         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9600
9601         switch (phba->pci_dev_grp) {
9602         case LPFC_PCI_DEV_LP:
9603                 lpfc_pci_remove_one_s3(pdev);
9604                 break;
9605         case LPFC_PCI_DEV_OC:
9606                 lpfc_pci_remove_one_s4(pdev);
9607                 break;
9608         default:
9609                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9610                                 "1424 Invalid PCI device group: 0x%x\n",
9611                                 phba->pci_dev_grp);
9612                 break;
9613         }
9614         return;
9615 }
9616
9617 /**
9618  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9619  * @pdev: pointer to PCI device
9620  * @msg: power management message
9621  *
9622  * This routine is to be registered to the kernel's PCI subsystem to support
9623  * system Power Management (PM). When PM invokes this method, it dispatches
9624  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9625  * suspend the device.
9626  *
9627  * Return code
9628  *      0 - driver suspended the device
9629  *      Error otherwise
9630  **/
9631 static int
9632 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9633 {
9634         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9635         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9636         int rc = -ENODEV;
9637
9638         switch (phba->pci_dev_grp) {
9639         case LPFC_PCI_DEV_LP:
9640                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9641                 break;
9642         case LPFC_PCI_DEV_OC:
9643                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9644                 break;
9645         default:
9646                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9647                                 "1425 Invalid PCI device group: 0x%x\n",
9648                                 phba->pci_dev_grp);
9649                 break;
9650         }
9651         return rc;
9652 }
9653
9654 /**
9655  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9656  * @pdev: pointer to PCI device
9657  *
9658  * This routine is to be registered to the kernel's PCI subsystem to support
9659  * system Power Management (PM). When PM invokes this method, it dispatches
9660  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9661  * resume the device.
9662  *
9663  * Return code
9664  *      0 - driver suspended the device
9665  *      Error otherwise
9666  **/
9667 static int
9668 lpfc_pci_resume_one(struct pci_dev *pdev)
9669 {
9670         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9671         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9672         int rc = -ENODEV;
9673
9674         switch (phba->pci_dev_grp) {
9675         case LPFC_PCI_DEV_LP:
9676                 rc = lpfc_pci_resume_one_s3(pdev);
9677                 break;
9678         case LPFC_PCI_DEV_OC:
9679                 rc = lpfc_pci_resume_one_s4(pdev);
9680                 break;
9681         default:
9682                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9683                                 "1426 Invalid PCI device group: 0x%x\n",
9684                                 phba->pci_dev_grp);
9685                 break;
9686         }
9687         return rc;
9688 }
9689
9690 /**
9691  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9692  * @pdev: pointer to PCI device.
9693  * @state: the current PCI connection state.
9694  *
9695  * This routine is registered to the PCI subsystem for error handling. This
9696  * function is called by the PCI subsystem after a PCI bus error affecting
9697  * this device has been detected. When this routine is invoked, it dispatches
9698  * the action to the proper SLI-3 or SLI-4 device error detected handling
9699  * routine, which will perform the proper error detected operation.
9700  *
9701  * Return codes
9702  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9703  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9704  **/
9705 static pci_ers_result_t
9706 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9707 {
9708         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9709         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9710         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9711
9712         switch (phba->pci_dev_grp) {
9713         case LPFC_PCI_DEV_LP:
9714                 rc = lpfc_io_error_detected_s3(pdev, state);
9715                 break;
9716         case LPFC_PCI_DEV_OC:
9717                 rc = lpfc_io_error_detected_s4(pdev, state);
9718                 break;
9719         default:
9720                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9721                                 "1427 Invalid PCI device group: 0x%x\n",
9722                                 phba->pci_dev_grp);
9723                 break;
9724         }
9725         return rc;
9726 }
9727
9728 /**
9729  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9730  * @pdev: pointer to PCI device.
9731  *
9732  * This routine is registered to the PCI subsystem for error handling. This
9733  * function is called after PCI bus has been reset to restart the PCI card
9734  * from scratch, as if from a cold-boot. When this routine is invoked, it
9735  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9736  * routine, which will perform the proper device reset.
9737  *
9738  * Return codes
9739  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9740  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9741  **/
9742 static pci_ers_result_t
9743 lpfc_io_slot_reset(struct pci_dev *pdev)
9744 {
9745         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9746         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9747         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9748
9749         switch (phba->pci_dev_grp) {
9750         case LPFC_PCI_DEV_LP:
9751                 rc = lpfc_io_slot_reset_s3(pdev);
9752                 break;
9753         case LPFC_PCI_DEV_OC:
9754                 rc = lpfc_io_slot_reset_s4(pdev);
9755                 break;
9756         default:
9757                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9758                                 "1428 Invalid PCI device group: 0x%x\n",
9759                                 phba->pci_dev_grp);
9760                 break;
9761         }
9762         return rc;
9763 }
9764
9765 /**
9766  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9767  * @pdev: pointer to PCI device
9768  *
9769  * This routine is registered to the PCI subsystem for error handling. It
9770  * is called when kernel error recovery tells the lpfc driver that it is
9771  * OK to resume normal PCI operation after PCI bus error recovery. When
9772  * this routine is invoked, it dispatches the action to the proper SLI-3
9773  * or SLI-4 device io_resume routine, which will resume the device operation.
9774  **/
9775 static void
9776 lpfc_io_resume(struct pci_dev *pdev)
9777 {
9778         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9779         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9780
9781         switch (phba->pci_dev_grp) {
9782         case LPFC_PCI_DEV_LP:
9783                 lpfc_io_resume_s3(pdev);
9784                 break;
9785         case LPFC_PCI_DEV_OC:
9786                 lpfc_io_resume_s4(pdev);
9787                 break;
9788         default:
9789                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9790                                 "1429 Invalid PCI device group: 0x%x\n",
9791                                 phba->pci_dev_grp);
9792                 break;
9793         }
9794         return;
9795 }
9796
9797 static struct pci_device_id lpfc_id_table[] = {
9798         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9799                 PCI_ANY_ID, PCI_ANY_ID, },
9800         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9801                 PCI_ANY_ID, PCI_ANY_ID, },
9802         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9803                 PCI_ANY_ID, PCI_ANY_ID, },
9804         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9805                 PCI_ANY_ID, PCI_ANY_ID, },
9806         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9807                 PCI_ANY_ID, PCI_ANY_ID, },
9808         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9809                 PCI_ANY_ID, PCI_ANY_ID, },
9810         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9811                 PCI_ANY_ID, PCI_ANY_ID, },
9812         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9813                 PCI_ANY_ID, PCI_ANY_ID, },
9814         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9815                 PCI_ANY_ID, PCI_ANY_ID, },
9816         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9817                 PCI_ANY_ID, PCI_ANY_ID, },
9818         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9819                 PCI_ANY_ID, PCI_ANY_ID, },
9820         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9821                 PCI_ANY_ID, PCI_ANY_ID, },
9822         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9823                 PCI_ANY_ID, PCI_ANY_ID, },
9824         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9825                 PCI_ANY_ID, PCI_ANY_ID, },
9826         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9827                 PCI_ANY_ID, PCI_ANY_ID, },
9828         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9829                 PCI_ANY_ID, PCI_ANY_ID, },
9830         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9831                 PCI_ANY_ID, PCI_ANY_ID, },
9832         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9833                 PCI_ANY_ID, PCI_ANY_ID, },
9834         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9835                 PCI_ANY_ID, PCI_ANY_ID, },
9836         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9837                 PCI_ANY_ID, PCI_ANY_ID, },
9838         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9839                 PCI_ANY_ID, PCI_ANY_ID, },
9840         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9841                 PCI_ANY_ID, PCI_ANY_ID, },
9842         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9843                 PCI_ANY_ID, PCI_ANY_ID, },
9844         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9845                 PCI_ANY_ID, PCI_ANY_ID, },
9846         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9847                 PCI_ANY_ID, PCI_ANY_ID, },
9848         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9849                 PCI_ANY_ID, PCI_ANY_ID, },
9850         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9851                 PCI_ANY_ID, PCI_ANY_ID, },
9852         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9853                 PCI_ANY_ID, PCI_ANY_ID, },
9854         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9855                 PCI_ANY_ID, PCI_ANY_ID, },
9856         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9857                 PCI_ANY_ID, PCI_ANY_ID, },
9858         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9859                 PCI_ANY_ID, PCI_ANY_ID, },
9860         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9861                 PCI_ANY_ID, PCI_ANY_ID, },
9862         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9863                 PCI_ANY_ID, PCI_ANY_ID, },
9864         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9865                 PCI_ANY_ID, PCI_ANY_ID, },
9866         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9867                 PCI_ANY_ID, PCI_ANY_ID, },
9868         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9869                 PCI_ANY_ID, PCI_ANY_ID, },
9870         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9871                 PCI_ANY_ID, PCI_ANY_ID, },
9872         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9873                 PCI_ANY_ID, PCI_ANY_ID, },
9874         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9875                 PCI_ANY_ID, PCI_ANY_ID, },
9876         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
9877                 PCI_ANY_ID, PCI_ANY_ID, },
9878         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9879                 PCI_ANY_ID, PCI_ANY_ID, },
9880         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9881                 PCI_ANY_ID, PCI_ANY_ID, },
9882         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9883                 PCI_ANY_ID, PCI_ANY_ID, },
9884         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
9885                 PCI_ANY_ID, PCI_ANY_ID, },
9886         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
9887                 PCI_ANY_ID, PCI_ANY_ID, },
9888         { 0 }
9889 };
9890
9891 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
9892
9893 static struct pci_error_handlers lpfc_err_handler = {
9894         .error_detected = lpfc_io_error_detected,
9895         .slot_reset = lpfc_io_slot_reset,
9896         .resume = lpfc_io_resume,
9897 };
9898
9899 static struct pci_driver lpfc_driver = {
9900         .name           = LPFC_DRIVER_NAME,
9901         .id_table       = lpfc_id_table,
9902         .probe          = lpfc_pci_probe_one,
9903         .remove         = __devexit_p(lpfc_pci_remove_one),
9904         .suspend        = lpfc_pci_suspend_one,
9905         .resume         = lpfc_pci_resume_one,
9906         .err_handler    = &lpfc_err_handler,
9907 };
9908
9909 /**
9910  * lpfc_init - lpfc module initialization routine
9911  *
9912  * This routine is to be invoked when the lpfc module is loaded into the
9913  * kernel. The special kernel macro module_init() is used to indicate the
9914  * role of this routine to the kernel as lpfc module entry point.
9915  *
9916  * Return codes
9917  *   0 - successful
9918  *   -ENOMEM - FC attach transport failed
9919  *   all others - failed
9920  */
9921 static int __init
9922 lpfc_init(void)
9923 {
9924         int error = 0;
9925
9926         printk(LPFC_MODULE_DESC "\n");
9927         printk(LPFC_COPYRIGHT "\n");
9928
9929         if (lpfc_enable_npiv) {
9930                 lpfc_transport_functions.vport_create = lpfc_vport_create;
9931                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
9932         }
9933         lpfc_transport_template =
9934                                 fc_attach_transport(&lpfc_transport_functions);
9935         if (lpfc_transport_template == NULL)
9936                 return -ENOMEM;
9937         if (lpfc_enable_npiv) {
9938                 lpfc_vport_transport_template =
9939                         fc_attach_transport(&lpfc_vport_transport_functions);
9940                 if (lpfc_vport_transport_template == NULL) {
9941                         fc_release_transport(lpfc_transport_template);
9942                         return -ENOMEM;
9943                 }
9944         }
9945         error = pci_register_driver(&lpfc_driver);
9946         if (error) {
9947                 fc_release_transport(lpfc_transport_template);
9948                 if (lpfc_enable_npiv)
9949                         fc_release_transport(lpfc_vport_transport_template);
9950         }
9951
9952         return error;
9953 }
9954
9955 /**
9956  * lpfc_exit - lpfc module removal routine
9957  *
9958  * This routine is invoked when the lpfc module is removed from the kernel.
9959  * The special kernel macro module_exit() is used to indicate the role of
9960  * this routine to the kernel as lpfc module exit point.
9961  */
9962 static void __exit
9963 lpfc_exit(void)
9964 {
9965         pci_unregister_driver(&lpfc_driver);
9966         fc_release_transport(lpfc_transport_template);
9967         if (lpfc_enable_npiv)
9968                 fc_release_transport(lpfc_vport_transport_template);
9969         if (_dump_buf_data) {
9970                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
9971                                 "_dump_buf_data at 0x%p\n",
9972                                 (1L << _dump_buf_data_order), _dump_buf_data);
9973                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
9974         }
9975
9976         if (_dump_buf_dif) {
9977                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
9978                                 "_dump_buf_dif at 0x%p\n",
9979                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
9980                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
9981         }
9982 }
9983
9984 module_init(lpfc_init);
9985 module_exit(lpfc_exit);
9986 MODULE_LICENSE("GPL");
9987 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
9988 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9989 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);