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) 2004-2010 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
  34 #include <scsi/scsi.h>
  35 #include <scsi/scsi_device.h>
  36 #include <scsi/scsi_host.h>
  37 #include <scsi/scsi_transport_fc.h>
  38
  39 #include "lpfc_hw4.h"
  40 #include "lpfc_hw.h"
  41 #include "lpfc_sli.h"
  42 #include "lpfc_sli4.h"
  43 #include "lpfc_nl.h"
  44 #include "lpfc_disc.h"
  45 #include "lpfc_scsi.h"
  46 #include "lpfc.h"
  47 #include "lpfc_logmsg.h"
  48 #include "lpfc_crtn.h"
  49 #include "lpfc_vport.h"
  50 #include "lpfc_version.h"
  51
  52 char *_dump_buf_data;
  53 unsigned long _dump_buf_data_order;
  54 char *_dump_buf_dif;
  55 unsigned long _dump_buf_dif_order;
  56 spinlock_t _dump_buf_lock;
  57
  58 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  59 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  60 static int lpfc_sli4_queue_create(struct lpfc_hba *);
  61 static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
  62 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  63 static int lpfc_setup_endian_order(struct lpfc_hba *);
  64 static int lpfc_sli4_read_config(struct lpfc_hba *);
  65 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  66 static void lpfc_free_sgl_list(struct lpfc_hba *);
  67 static int lpfc_init_sgl_list(struct lpfc_hba *);
  68 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  69 static void lpfc_free_active_sgl(struct lpfc_hba *);
  70 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  71 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  72 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  73 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  74 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  75
  76 static struct scsi_transport_template *lpfc_transport_template = NULL;
  77 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  78 static DEFINE_IDR(lpfc_hba_index);
  79
  80 /**
  81  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  82  * @phba: pointer to lpfc hba data structure.
  83  *
  84  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  85  * mailbox command. It retrieves the revision information from the HBA and
  86  * collects the Vital Product Data (VPD) about the HBA for preparing the
  87  * configuration of the HBA.
  88  *
  89  * Return codes:
  90  *   0 - success.
  91  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
  92  *   Any other value - indicates an error.
  93  **/
  94 int
  95 lpfc_config_port_prep(struct lpfc_hba *phba)
  96 {
  97         lpfc_vpd_t *vp = &phba->vpd;
  98         int i = 0, rc;
  99         LPFC_MBOXQ_t *pmb;
 100         MAILBOX_t *mb;
 101         char *lpfc_vpd_data = NULL;
 102         uint16_t offset = 0;
 103         static char licensed[56] =
 104                     "key unlock for use with gnu public licensed code only\0";
 105         static int init_key = 1;
 106
 107         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 108         if (!pmb) {
 109                 phba->link_state = LPFC_HBA_ERROR;
 110                 return -ENOMEM;
 111         }
 112
 113         mb = &pmb->u.mb;
 114         phba->link_state = LPFC_INIT_MBX_CMDS;
 115
 116         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 117                 if (init_key) {
 118                         uint32_t *ptext = (uint32_t *) licensed;
 119
 120                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 121                                 *ptext = cpu_to_be32(*ptext);
 122                         init_key = 0;
 123                 }
 124
 125                 lpfc_read_nv(phba, pmb);
 126                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 127                         sizeof (mb->un.varRDnvp.rsvd3));
 128                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 129                          sizeof (licensed));
 130
 131                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 132
 133                 if (rc != MBX_SUCCESS) {
 134                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 135                                         "0324 Config Port initialization "
 136                                         "error, mbxCmd x%x READ_NVPARM, "
 137                                         "mbxStatus x%x\n",
 138                                         mb->mbxCommand, mb->mbxStatus);
 139                         mempool_free(pmb, phba->mbox_mem_pool);
 140                         return -ERESTART;
 141                 }
 142                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 143                        sizeof(phba->wwnn));
 144                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 145                        sizeof(phba->wwpn));
 146         }
 147
 148         phba->sli3_options = 0x0;
 149
 150         /* Setup and issue mailbox READ REV command */
 151         lpfc_read_rev(phba, pmb);
 152         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 153         if (rc != MBX_SUCCESS) {
 154                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 155                                 "0439 Adapter failed to init, mbxCmd x%x "
 156                                 "READ_REV, mbxStatus x%x\n",
 157                                 mb->mbxCommand, mb->mbxStatus);
 158                 mempool_free( pmb, phba->mbox_mem_pool);
 159                 return -ERESTART;
 160         }
 161
 162
 163         /*
 164          * The value of rr must be 1 since the driver set the cv field to 1.
 165          * This setting requires the FW to set all revision fields.
 166          */
 167         if (mb->un.varRdRev.rr == 0) {
 168                 vp->rev.rBit = 0;
 169                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 170                                 "0440 Adapter failed to init, READ_REV has "
 171                                 "missing revision information.\n");
 172                 mempool_free(pmb, phba->mbox_mem_pool);
 173                 return -ERESTART;
 174         }
 175
 176         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 177                 mempool_free(pmb, phba->mbox_mem_pool);
 178                 return -EINVAL;
 179         }
 180
 181         /* Save information as VPD data */
 182         vp->rev.rBit = 1;
 183         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 184         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 185         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 186         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 187         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 188         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 189         vp->rev.smRev = mb->un.varRdRev.smRev;
 190         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 191         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 192         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 193         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 194         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 195         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 196         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 197         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 198
 199         /* If the sli feature level is less then 9, we must
 200          * tear down all RPIs and VPIs on link down if NPIV
 201          * is enabled.
 202          */
 203         if (vp->rev.feaLevelHigh < 9)
 204                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 205
 206         if (lpfc_is_LC_HBA(phba->pcidev->device))
 207                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 208                                                 sizeof (phba->RandomData));
 209
 210         /* Get adapter VPD information */
 211         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 212         if (!lpfc_vpd_data)
 213                 goto out_free_mbox;
 214
 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_config_port_post - Perform lpfc initialization after config port
 313  * @phba: pointer to lpfc hba data structure.
 314  *
 315  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 316  * command call. It performs all internal resource and state setups on the
 317  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 318  * ELS ring timers, etc.
 319  *
 320  * Return codes
 321  *   0 - success.
 322  *   Any other value - error.
 323  **/
 324 int
 325 lpfc_config_port_post(struct lpfc_hba *phba)
 326 {
 327         struct lpfc_vport *vport = phba->pport;
 328         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 329         LPFC_MBOXQ_t *pmb;
 330         MAILBOX_t *mb;
 331         struct lpfc_dmabuf *mp;
 332         struct lpfc_sli *psli = &phba->sli;
 333         uint32_t status, timeout;
 334         int i, j;
 335         int rc;
 336
 337         spin_lock_irq(&phba->hbalock);
 338         /*
 339          * If the Config port completed correctly the HBA is not
 340          * over heated any more.
 341          */
 342         if (phba->over_temp_state == HBA_OVER_TEMP)
 343                 phba->over_temp_state = HBA_NORMAL_TEMP;
 344         spin_unlock_irq(&phba->hbalock);
 345
 346         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 347         if (!pmb) {
 348                 phba->link_state = LPFC_HBA_ERROR;
 349                 return -ENOMEM;
 350         }
 351         mb = &pmb->u.mb;
 352
 353         /* Get login parameters for NID.  */
 354         rc = lpfc_read_sparam(phba, pmb, 0);
 355         if (rc) {
 356                 mempool_free(pmb, phba->mbox_mem_pool);
 357                 return -ENOMEM;
 358         }
 359
 360         pmb->vport = vport;
 361         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 362                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 363                                 "0448 Adapter failed init, mbxCmd x%x "
 364                                 "READ_SPARM mbxStatus x%x\n",
 365                                 mb->mbxCommand, mb->mbxStatus);
 366                 phba->link_state = LPFC_HBA_ERROR;
 367                 mp = (struct lpfc_dmabuf *) pmb->context1;
 368                 mempool_free(pmb, phba->mbox_mem_pool);
 369                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 370                 kfree(mp);
 371                 return -EIO;
 372         }
 373
 374         mp = (struct lpfc_dmabuf *) pmb->context1;
 375
 376         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 377         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 378         kfree(mp);
 379         pmb->context1 = NULL;
 380
 381         if (phba->cfg_soft_wwnn)
 382                 u64_to_wwn(phba->cfg_soft_wwnn,
 383                            vport->fc_sparam.nodeName.u.wwn);
 384         if (phba->cfg_soft_wwpn)
 385                 u64_to_wwn(phba->cfg_soft_wwpn,
 386                            vport->fc_sparam.portName.u.wwn);
 387         memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 388                sizeof (struct lpfc_name));
 389         memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 390                sizeof (struct lpfc_name));
 391
 392         /* Update the fc_host data structures with new wwn. */
 393         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 394         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 395         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 396
 397         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 398         /* This should be consolidated into parse_vpd ? - mr */
 399         if (phba->SerialNumber[0] == 0) {
 400                 uint8_t *outptr;
 401
 402                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 403                 for (i = 0; i < 12; i++) {
 404                         status = *outptr++;
 405                         j = ((status & 0xf0) >> 4);
 406                         if (j <= 9)
 407                                 phba->SerialNumber[i] =
 408                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 409                         else
 410                                 phba->SerialNumber[i] =
 411                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 412                         i++;
 413                         j = (status & 0xf);
 414                         if (j <= 9)
 415                                 phba->SerialNumber[i] =
 416                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 417                         else
 418                                 phba->SerialNumber[i] =
 419                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 420                 }
 421         }
 422
 423         lpfc_read_config(phba, pmb);
 424         pmb->vport = vport;
 425         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 426                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 427                                 "0453 Adapter failed to init, mbxCmd x%x "
 428                                 "READ_CONFIG, mbxStatus x%x\n",
 429                                 mb->mbxCommand, mb->mbxStatus);
 430                 phba->link_state = LPFC_HBA_ERROR;
 431                 mempool_free( pmb, phba->mbox_mem_pool);
 432                 return -EIO;
 433         }
 434
 435         /* Check if the port is disabled */
 436         lpfc_sli_read_link_ste(phba);
 437
 438         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 439         if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
 440                 phba->cfg_hba_queue_depth =
 441                         (mb->un.varRdConfig.max_xri + 1) -
 442                                         lpfc_sli4_get_els_iocb_cnt(phba);
 443
 444         phba->lmt = mb->un.varRdConfig.lmt;
 445
 446         /* Get the default values for Model Name and Description */
 447         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 448
 449         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G)
 450             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G)
 451                 && !(phba->lmt & LMT_1Gb))
 452             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G)
 453                 && !(phba->lmt & LMT_2Gb))
 454             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G)
 455                 && !(phba->lmt & LMT_4Gb))
 456             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G)
 457                 && !(phba->lmt & LMT_8Gb))
 458             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G)
 459                 && !(phba->lmt & LMT_10Gb))
 460             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
 461                 && !(phba->lmt & LMT_16Gb))) {
 462                 /* Reset link speed to auto */
 463                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 464                         "1302 Invalid speed for this board: "
 465                         "Reset link speed to auto: x%x\n",
 466                         phba->cfg_link_speed);
 467                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 468         }
 469
 470         phba->link_state = LPFC_LINK_DOWN;
 471
 472         /* Only process IOCBs on ELS ring till hba_state is READY */
 473         if (psli->ring[psli->extra_ring].cmdringaddr)
 474                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 475         if (psli->ring[psli->fcp_ring].cmdringaddr)
 476                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 477         if (psli->ring[psli->next_ring].cmdringaddr)
 478                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 479
 480         /* Post receive buffers for desired rings */
 481         if (phba->sli_rev != 3)
 482                 lpfc_post_rcv_buf(phba);
 483
 484         /*
 485          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 486          */
 487         if (phba->intr_type == MSIX) {
 488                 rc = lpfc_config_msi(phba, pmb);
 489                 if (rc) {
 490                         mempool_free(pmb, phba->mbox_mem_pool);
 491                         return -EIO;
 492                 }
 493                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 494                 if (rc != MBX_SUCCESS) {
 495                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 496                                         "0352 Config MSI mailbox command "
 497                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 498                                         pmb->u.mb.mbxCommand,
 499                                         pmb->u.mb.mbxStatus);
 500                         mempool_free(pmb, phba->mbox_mem_pool);
 501                         return -EIO;
 502                 }
 503         }
 504
 505         spin_lock_irq(&phba->hbalock);
 506         /* Initialize ERATT handling flag */
 507         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 508
 509         /* Enable appropriate host interrupts */
 510         status = readl(phba->HCregaddr);
 511         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 512         if (psli->num_rings > 0)
 513                 status |= HC_R0INT_ENA;
 514         if (psli->num_rings > 1)
 515                 status |= HC_R1INT_ENA;
 516         if (psli->num_rings > 2)
 517                 status |= HC_R2INT_ENA;
 518         if (psli->num_rings > 3)
 519                 status |= HC_R3INT_ENA;
 520
 521         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 522             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 523                 status &= ~(HC_R0INT_ENA);
 524
 525         writel(status, phba->HCregaddr);
 526         readl(phba->HCregaddr); /* flush */
 527         spin_unlock_irq(&phba->hbalock);
 528
 529         /* Set up ring-0 (ELS) timer */
 530         timeout = phba->fc_ratov * 2;
 531         mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
 532         /* Set up heart beat (HB) timer */
 533         mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 534         phba->hb_outstanding = 0;
 535         phba->last_completion_time = jiffies;
 536         /* Set up error attention (ERATT) polling timer */
 537         mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
 538
 539         if (phba->hba_flag & LINK_DISABLED) {
 540                 lpfc_printf_log(phba,
 541                         KERN_ERR, LOG_INIT,
 542                         "2598 Adapter Link is disabled.\n");
 543                 lpfc_down_link(phba, pmb);
 544                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 545                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 546                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 547                         lpfc_printf_log(phba,
 548                         KERN_ERR, LOG_INIT,
 549                         "2599 Adapter failed to issue DOWN_LINK"
 550                         " mbox command rc 0x%x\n", rc);
 551
 552                         mempool_free(pmb, phba->mbox_mem_pool);
 553                         return -EIO;
 554                 }
 555         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 556                 lpfc_init_link(phba, pmb, phba->cfg_topology,
 557                         phba->cfg_link_speed);
 558                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 559                 lpfc_set_loopback_flag(phba);
 560                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 561                 if (rc != MBX_SUCCESS) {
 562                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 563                                 "0454 Adapter failed to init, mbxCmd x%x "
 564                                 "INIT_LINK, mbxStatus x%x\n",
 565                                 mb->mbxCommand, mb->mbxStatus);
 566
 567                         /* Clear all interrupt enable conditions */
 568                         writel(0, phba->HCregaddr);
 569                         readl(phba->HCregaddr); /* flush */
 570                         /* Clear all pending interrupts */
 571                         writel(0xffffffff, phba->HAregaddr);
 572                         readl(phba->HAregaddr); /* flush */
 573
 574                         phba->link_state = LPFC_HBA_ERROR;
 575                         if (rc != MBX_BUSY)
 576                                 mempool_free(pmb, phba->mbox_mem_pool);
 577                         return -EIO;
 578                 }
 579         }
 580         /* MBOX buffer will be freed in mbox compl */
 581         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 582         if (!pmb) {
 583                 phba->link_state = LPFC_HBA_ERROR;
 584                 return -ENOMEM;
 585         }
 586
 587         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 588         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 589         pmb->vport = phba->pport;
 590         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 591
 592         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 593                 lpfc_printf_log(phba,
 594                                 KERN_ERR,
 595                                 LOG_INIT,
 596                                 "0456 Adapter failed to issue "
 597                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 598                                 rc);
 599                 mempool_free(pmb, phba->mbox_mem_pool);
 600         }
 601
 602         /* Get Option rom version */
 603         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 604         if (!pmb) {
 605                 phba->link_state = LPFC_HBA_ERROR;
 606                 return -ENOMEM;
 607         }
 608
 609         lpfc_dump_wakeup_param(phba, pmb);
 610         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 611         pmb->vport = phba->pport;
 612         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 613
 614         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 615                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 616                                 "to get Option ROM version status x%x\n", rc);
 617                 mempool_free(pmb, phba->mbox_mem_pool);
 618         }
 619
 620         return 0;
 621 }
 622
 623 /**
 624  * lpfc_hba_init_link - Initialize the FC link
 625  * @phba: pointer to lpfc hba data structure.
 626  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 627  *
 628  * This routine will issue the INIT_LINK mailbox command call.
 629  * It is available to other drivers through the lpfc_hba data
 630  * structure for use as a delayed link up mechanism with the
 631  * module parameter lpfc_suppress_link_up.
 632  *
 633  * Return code
 634  *              0 - success
 635  *              Any other value - error
 636  **/
 637 int
 638 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 639 {
 640         struct lpfc_vport *vport = phba->pport;
 641         LPFC_MBOXQ_t *pmb;
 642         MAILBOX_t *mb;
 643         int rc;
 644
 645         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 646         if (!pmb) {
 647                 phba->link_state = LPFC_HBA_ERROR;
 648                 return -ENOMEM;
 649         }
 650         mb = &pmb->u.mb;
 651         pmb->vport = vport;
 652
 653         lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
 654         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 655         lpfc_set_loopback_flag(phba);
 656         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 657         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 658                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 659                         "0498 Adapter failed to init, mbxCmd x%x "
 660                         "INIT_LINK, mbxStatus x%x\n",
 661                         mb->mbxCommand, mb->mbxStatus);
 662                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 663                         /* Clear all interrupt enable conditions */
 664                         writel(0, phba->HCregaddr);
 665                         readl(phba->HCregaddr); /* flush */
 666                         /* Clear all pending interrupts */
 667                         writel(0xffffffff, phba->HAregaddr);
 668                         readl(phba->HAregaddr); /* flush */
 669                 }
 670                 phba->link_state = LPFC_HBA_ERROR;
 671                 if (rc != MBX_BUSY || flag == MBX_POLL)
 672                         mempool_free(pmb, phba->mbox_mem_pool);
 673                 return -EIO;
 674         }
 675         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 676         if (flag == MBX_POLL)
 677                 mempool_free(pmb, phba->mbox_mem_pool);
 678
 679         return 0;
 680 }
 681
 682 /**
 683  * lpfc_hba_down_link - this routine downs the FC link
 684  * @phba: pointer to lpfc hba data structure.
 685  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 686  *
 687  * This routine will issue the DOWN_LINK mailbox command call.
 688  * It is available to other drivers through the lpfc_hba data
 689  * structure for use to stop the link.
 690  *
 691  * Return code
 692  *              0 - success
 693  *              Any other value - error
 694  **/
 695 int
 696 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 697 {
 698         LPFC_MBOXQ_t *pmb;
 699         int rc;
 700
 701         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 702         if (!pmb) {
 703                 phba->link_state = LPFC_HBA_ERROR;
 704                 return -ENOMEM;
 705         }
 706
 707         lpfc_printf_log(phba,
 708                 KERN_ERR, LOG_INIT,
 709                 "0491 Adapter Link is disabled.\n");
 710         lpfc_down_link(phba, pmb);
 711         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 712         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 713         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 714                 lpfc_printf_log(phba,
 715                 KERN_ERR, LOG_INIT,
 716                 "2522 Adapter failed to issue DOWN_LINK"
 717                 " mbox command rc 0x%x\n", rc);
 718
 719                 mempool_free(pmb, phba->mbox_mem_pool);
 720                 return -EIO;
 721         }
 722         if (flag == MBX_POLL)
 723                 mempool_free(pmb, phba->mbox_mem_pool);
 724
 725         return 0;
 726 }
 727
 728 /**
 729  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 730  * @phba: pointer to lpfc HBA data structure.
 731  *
 732  * This routine will do LPFC uninitialization before the HBA is reset when
 733  * bringing down the SLI Layer.
 734  *
 735  * Return codes
 736  *   0 - success.
 737  *   Any other value - error.
 738  **/
 739 int
 740 lpfc_hba_down_prep(struct lpfc_hba *phba)
 741 {
 742         struct lpfc_vport **vports;
 743         int i;
 744
 745         if (phba->sli_rev <= LPFC_SLI_REV3) {
 746                 /* Disable interrupts */
 747                 writel(0, phba->HCregaddr);
 748                 readl(phba->HCregaddr); /* flush */
 749         }
 750
 751         if (phba->pport->load_flag & FC_UNLOADING)
 752                 lpfc_cleanup_discovery_resources(phba->pport);
 753         else {
 754                 vports = lpfc_create_vport_work_array(phba);
 755                 if (vports != NULL)
 756                         for (i = 0; i <= phba->max_vports &&
 757                                 vports[i] != NULL; i++)
 758                                 lpfc_cleanup_discovery_resources(vports[i]);
 759                 lpfc_destroy_vport_work_array(phba, vports);
 760         }
 761         return 0;
 762 }
 763
 764 /**
 765  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 766  * @phba: pointer to lpfc HBA data structure.
 767  *
 768  * This routine will do uninitialization after the HBA is reset when bring
 769  * down the SLI Layer.
 770  *
 771  * Return codes
 772  *   0 - success.
 773  *   Any other value - error.
 774  **/
 775 static int
 776 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 777 {
 778         struct lpfc_sli *psli = &phba->sli;
 779         struct lpfc_sli_ring *pring;
 780         struct lpfc_dmabuf *mp, *next_mp;
 781         LIST_HEAD(completions);
 782         int i;
 783
 784         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 785                 lpfc_sli_hbqbuf_free_all(phba);
 786         else {
 787                 /* Cleanup preposted buffers on the ELS ring */
 788                 pring = &psli->ring[LPFC_ELS_RING];
 789                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 790                         list_del(&mp->list);
 791                         pring->postbufq_cnt--;
 792                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 793                         kfree(mp);
 794                 }
 795         }
 796
 797         spin_lock_irq(&phba->hbalock);
 798         for (i = 0; i < psli->num_rings; i++) {
 799                 pring = &psli->ring[i];
 800
 801                 /* At this point in time the HBA is either reset or DOA. Either
 802                  * way, nothing should be on txcmplq as it will NEVER complete.
 803                  */
 804                 list_splice_init(&pring->txcmplq, &completions);
 805                 pring->txcmplq_cnt = 0;
 806                 spin_unlock_irq(&phba->hbalock);
 807
 808                 /* Cancel all the IOCBs from the completions list */
 809                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 810                                       IOERR_SLI_ABORTED);
 811
 812                 lpfc_sli_abort_iocb_ring(phba, pring);
 813                 spin_lock_irq(&phba->hbalock);
 814         }
 815         spin_unlock_irq(&phba->hbalock);
 816
 817         return 0;
 818 }
 819
 820 /**
 821  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 822  * @phba: pointer to lpfc HBA data structure.
 823  *
 824  * This routine will do uninitialization after the HBA is reset when bring
 825  * down the SLI Layer.
 826  *
 827  * Return codes
 828  *   0 - success.
 829  *   Any other value - error.
 830  **/
 831 static int
 832 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 833 {
 834         struct lpfc_scsi_buf *psb, *psb_next;
 835         LIST_HEAD(aborts);
 836         int ret;
 837         unsigned long iflag = 0;
 838         struct lpfc_sglq *sglq_entry = NULL;
 839
 840         ret = lpfc_hba_down_post_s3(phba);
 841         if (ret)
 842                 return ret;
 843         /* At this point in time the HBA is either reset or DOA. Either
 844          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 845          * on the lpfc_sgl_list so that it can either be freed if the
 846          * driver is unloading or reposted if the driver is restarting
 847          * the port.
 848          */
 849         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 850                                         /* scsl_buf_list */
 851         /* abts_sgl_list_lock required because worker thread uses this
 852          * list.
 853          */
 854         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 855         list_for_each_entry(sglq_entry,
 856                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 857                 sglq_entry->state = SGL_FREED;
 858
 859         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 860                         &phba->sli4_hba.lpfc_sgl_list);
 861         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 862         /* abts_scsi_buf_list_lock required because worker thread uses this
 863          * list.
 864          */
 865         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 866         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 867                         &aborts);
 868         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 869         spin_unlock_irq(&phba->hbalock);
 870
 871         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 872                 psb->pCmd = NULL;
 873                 psb->status = IOSTAT_SUCCESS;
 874         }
 875         spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 876         list_splice(&aborts, &phba->lpfc_scsi_buf_list);
 877         spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 878         return 0;
 879 }
 880
 881 /**
 882  * lpfc_hba_down_post - Wrapper func for hba down post routine
 883  * @phba: pointer to lpfc HBA data structure.
 884  *
 885  * This routine wraps the actual SLI3 or SLI4 routine for performing
 886  * uninitialization after the HBA is reset when bring down the SLI Layer.
 887  *
 888  * Return codes
 889  *   0 - success.
 890  *   Any other value - error.
 891  **/
 892 int
 893 lpfc_hba_down_post(struct lpfc_hba *phba)
 894 {
 895         return (*phba->lpfc_hba_down_post)(phba);
 896 }
 897
 898 /**
 899  * lpfc_hb_timeout - The HBA-timer timeout handler
 900  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 901  *
 902  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 903  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 904  * work-port-events bitmap and the worker thread is notified. This timeout
 905  * event will be used by the worker thread to invoke the actual timeout
 906  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 907  * be performed in the timeout handler and the HBA timeout event bit shall
 908  * be cleared by the worker thread after it has taken the event bitmap out.
 909  **/
 910 static void
 911 lpfc_hb_timeout(unsigned long ptr)
 912 {
 913         struct lpfc_hba *phba;
 914         uint32_t tmo_posted;
 915         unsigned long iflag;
 916
 917         phba = (struct lpfc_hba *)ptr;
 918
 919         /* Check for heart beat timeout conditions */
 920         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 921         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 922         if (!tmo_posted)
 923                 phba->pport->work_port_events |= WORKER_HB_TMO;
 924         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 925
 926         /* Tell the worker thread there is work to do */
 927         if (!tmo_posted)
 928                 lpfc_worker_wake_up(phba);
 929         return;
 930 }
 931
 932 /**
 933  * lpfc_rrq_timeout - The RRQ-timer timeout handler
 934  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 935  *
 936  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 937  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 938  * work-port-events bitmap and the worker thread is notified. This timeout
 939  * event will be used by the worker thread to invoke the actual timeout
 940  * handler routine, lpfc_rrq_handler. Any periodical operations will
 941  * be performed in the timeout handler and the RRQ timeout event bit shall
 942  * be cleared by the worker thread after it has taken the event bitmap out.
 943  **/
 944 static void
 945 lpfc_rrq_timeout(unsigned long ptr)
 946 {
 947         struct lpfc_hba *phba;
 948         unsigned long iflag;
 949
 950         phba = (struct lpfc_hba *)ptr;
 951         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 952         phba->hba_flag |= HBA_RRQ_ACTIVE;
 953         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 954         lpfc_worker_wake_up(phba);
 955 }
 956
 957 /**
 958  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 959  * @phba: pointer to lpfc hba data structure.
 960  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 961  *
 962  * This is the callback function to the lpfc heart-beat mailbox command.
 963  * If configured, the lpfc driver issues the heart-beat mailbox command to
 964  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 965  * heart-beat mailbox command is issued, the driver shall set up heart-beat
 966  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 967  * heart-beat outstanding state. Once the mailbox command comes back and
 968  * no error conditions detected, the heart-beat mailbox command timer is
 969  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
 970  * state is cleared for the next heart-beat. If the timer expired with the
 971  * heart-beat outstanding state set, the driver will put the HBA offline.
 972  **/
 973 static void
 974 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 975 {
 976         unsigned long drvr_flag;
 977
 978         spin_lock_irqsave(&phba->hbalock, drvr_flag);
 979         phba->hb_outstanding = 0;
 980         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
 981
 982         /* Check and reset heart-beat timer is necessary */
 983         mempool_free(pmboxq, phba->mbox_mem_pool);
 984         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
 985                 !(phba->link_state == LPFC_HBA_ERROR) &&
 986                 !(phba->pport->load_flag & FC_UNLOADING))
 987                 mod_timer(&phba->hb_tmofunc,
 988                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 989         return;
 990 }
 991
 992 /**
 993  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
 994  * @phba: pointer to lpfc hba data structure.
 995  *
 996  * This is the actual HBA-timer timeout handler to be invoked by the worker
 997  * thread whenever the HBA timer fired and HBA-timeout event posted. This
 998  * handler performs any periodic operations needed for the device. If such
 999  * periodic event has already been attended to either in the interrupt handler
1000  * or by processing slow-ring or fast-ring events within the HBA-timer
1001  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1002  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1003  * is configured and there is no heart-beat mailbox command outstanding, a
1004  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1005  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1006  * to offline.
1007  **/
1008 void
1009 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1010 {
1011         struct lpfc_vport **vports;
1012         LPFC_MBOXQ_t *pmboxq;
1013         struct lpfc_dmabuf *buf_ptr;
1014         int retval, i;
1015         struct lpfc_sli *psli = &phba->sli;
1016         LIST_HEAD(completions);
1017
1018         vports = lpfc_create_vport_work_array(phba);
1019         if (vports != NULL)
1020                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1021                         lpfc_rcv_seq_check_edtov(vports[i]);
1022         lpfc_destroy_vport_work_array(phba, vports);
1023
1024         if ((phba->link_state == LPFC_HBA_ERROR) ||
1025                 (phba->pport->load_flag & FC_UNLOADING) ||
1026                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1027                 return;
1028
1029         spin_lock_irq(&phba->pport->work_port_lock);
1030
1031         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1032                 jiffies)) {
1033                 spin_unlock_irq(&phba->pport->work_port_lock);
1034                 if (!phba->hb_outstanding)
1035                         mod_timer(&phba->hb_tmofunc,
1036                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1037                 else
1038                         mod_timer(&phba->hb_tmofunc,
1039                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1040                 return;
1041         }
1042         spin_unlock_irq(&phba->pport->work_port_lock);
1043
1044         if (phba->elsbuf_cnt &&
1045                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1046                 spin_lock_irq(&phba->hbalock);
1047                 list_splice_init(&phba->elsbuf, &completions);
1048                 phba->elsbuf_cnt = 0;
1049                 phba->elsbuf_prev_cnt = 0;
1050                 spin_unlock_irq(&phba->hbalock);
1051
1052                 while (!list_empty(&completions)) {
1053                         list_remove_head(&completions, buf_ptr,
1054                                 struct lpfc_dmabuf, list);
1055                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1056                         kfree(buf_ptr);
1057                 }
1058         }
1059         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1060
1061         /* If there is no heart beat outstanding, issue a heartbeat command */
1062         if (phba->cfg_enable_hba_heartbeat) {
1063                 if (!phba->hb_outstanding) {
1064                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1065                                 (list_empty(&psli->mboxq))) {
1066                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1067                                                         GFP_KERNEL);
1068                                 if (!pmboxq) {
1069                                         mod_timer(&phba->hb_tmofunc,
1070                                                  jiffies +
1071                                                  HZ * LPFC_HB_MBOX_INTERVAL);
1072                                         return;
1073                                 }
1074
1075                                 lpfc_heart_beat(phba, pmboxq);
1076                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1077                                 pmboxq->vport = phba->pport;
1078                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1079                                                 MBX_NOWAIT);
1080
1081                                 if (retval != MBX_BUSY &&
1082                                         retval != MBX_SUCCESS) {
1083                                         mempool_free(pmboxq,
1084                                                         phba->mbox_mem_pool);
1085                                         mod_timer(&phba->hb_tmofunc,
1086                                                 jiffies +
1087                                                 HZ * LPFC_HB_MBOX_INTERVAL);
1088                                         return;
1089                                 }
1090                                 phba->skipped_hb = 0;
1091                                 phba->hb_outstanding = 1;
1092                         } else if (time_before_eq(phba->last_completion_time,
1093                                         phba->skipped_hb)) {
1094                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1095                                         "2857 Last completion time not "
1096                                         " updated in %d ms\n",
1097                                         jiffies_to_msecs(jiffies
1098                                                  - phba->last_completion_time));
1099                         } else
1100                                 phba->skipped_hb = jiffies;
1101
1102                         mod_timer(&phba->hb_tmofunc,
1103                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1104                         return;
1105                 } else {
1106                         /*
1107                         * If heart beat timeout called with hb_outstanding set
1108                         * we need to give the hb mailbox cmd a chance to
1109                         * complete or TMO.
1110                         */
1111                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1112                                         "0459 Adapter heartbeat still out"
1113                                         "standing:last compl time was %d ms.\n",
1114                                         jiffies_to_msecs(jiffies
1115                                                  - phba->last_completion_time));
1116                         mod_timer(&phba->hb_tmofunc,
1117                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1118                 }
1119         }
1120 }
1121
1122 /**
1123  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1124  * @phba: pointer to lpfc hba data structure.
1125  *
1126  * This routine is called to bring the HBA offline when HBA hardware error
1127  * other than Port Error 6 has been detected.
1128  **/
1129 static void
1130 lpfc_offline_eratt(struct lpfc_hba *phba)
1131 {
1132         struct lpfc_sli   *psli = &phba->sli;
1133
1134         spin_lock_irq(&phba->hbalock);
1135         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1136         spin_unlock_irq(&phba->hbalock);
1137         lpfc_offline_prep(phba);
1138
1139         lpfc_offline(phba);
1140         lpfc_reset_barrier(phba);
1141         spin_lock_irq(&phba->hbalock);
1142         lpfc_sli_brdreset(phba);
1143         spin_unlock_irq(&phba->hbalock);
1144         lpfc_hba_down_post(phba);
1145         lpfc_sli_brdready(phba, HS_MBRDY);
1146         lpfc_unblock_mgmt_io(phba);
1147         phba->link_state = LPFC_HBA_ERROR;
1148         return;
1149 }
1150
1151 /**
1152  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1153  * @phba: pointer to lpfc hba data structure.
1154  *
1155  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1156  * other than Port Error 6 has been detected.
1157  **/
1158 static void
1159 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1160 {
1161         lpfc_offline_prep(phba);
1162         lpfc_offline(phba);
1163         lpfc_sli4_brdreset(phba);
1164         lpfc_hba_down_post(phba);
1165         lpfc_sli4_post_status_check(phba);
1166         lpfc_unblock_mgmt_io(phba);
1167         phba->link_state = LPFC_HBA_ERROR;
1168 }
1169
1170 /**
1171  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1172  * @phba: pointer to lpfc hba data structure.
1173  *
1174  * This routine is invoked to handle the deferred HBA hardware error
1175  * conditions. This type of error is indicated by HBA by setting ER1
1176  * and another ER bit in the host status register. The driver will
1177  * wait until the ER1 bit clears before handling the error condition.
1178  **/
1179 static void
1180 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1181 {
1182         uint32_t old_host_status = phba->work_hs;
1183         struct lpfc_sli_ring  *pring;
1184         struct lpfc_sli *psli = &phba->sli;
1185
1186         /* If the pci channel is offline, ignore possible errors,
1187          * since we cannot communicate with the pci card anyway.
1188          */
1189         if (pci_channel_offline(phba->pcidev)) {
1190                 spin_lock_irq(&phba->hbalock);
1191                 phba->hba_flag &= ~DEFER_ERATT;
1192                 spin_unlock_irq(&phba->hbalock);
1193                 return;
1194         }
1195
1196         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1197                 "0479 Deferred Adapter Hardware Error "
1198                 "Data: x%x x%x x%x\n",
1199                 phba->work_hs,
1200                 phba->work_status[0], phba->work_status[1]);
1201
1202         spin_lock_irq(&phba->hbalock);
1203         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1204         spin_unlock_irq(&phba->hbalock);
1205
1206
1207         /*
1208          * Firmware stops when it triggred erratt. That could cause the I/Os
1209          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1210          * SCSI layer retry it after re-establishing link.
1211          */
1212         pring = &psli->ring[psli->fcp_ring];
1213         lpfc_sli_abort_iocb_ring(phba, pring);
1214
1215         /*
1216          * There was a firmware error. Take the hba offline and then
1217          * attempt to restart it.
1218          */
1219         lpfc_offline_prep(phba);
1220         lpfc_offline(phba);
1221
1222         /* Wait for the ER1 bit to clear.*/
1223         while (phba->work_hs & HS_FFER1) {
1224                 msleep(100);
1225                 phba->work_hs = readl(phba->HSregaddr);
1226                 /* If driver is unloading let the worker thread continue */
1227                 if (phba->pport->load_flag & FC_UNLOADING) {
1228                         phba->work_hs = 0;
1229                         break;
1230                 }
1231         }
1232
1233         /*
1234          * This is to ptrotect against a race condition in which
1235          * first write to the host attention register clear the
1236          * host status register.
1237          */
1238         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1239                 phba->work_hs = old_host_status & ~HS_FFER1;
1240
1241         spin_lock_irq(&phba->hbalock);
1242         phba->hba_flag &= ~DEFER_ERATT;
1243         spin_unlock_irq(&phba->hbalock);
1244         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1245         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1246 }
1247
1248 static void
1249 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1250 {
1251         struct lpfc_board_event_header board_event;
1252         struct Scsi_Host *shost;
1253
1254         board_event.event_type = FC_REG_BOARD_EVENT;
1255         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1256         shost = lpfc_shost_from_vport(phba->pport);
1257         fc_host_post_vendor_event(shost, fc_get_event_number(),
1258                                   sizeof(board_event),
1259                                   (char *) &board_event,
1260                                   LPFC_NL_VENDOR_ID);
1261 }
1262
1263 /**
1264  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1265  * @phba: pointer to lpfc hba data structure.
1266  *
1267  * This routine is invoked to handle the following HBA hardware error
1268  * conditions:
1269  * 1 - HBA error attention interrupt
1270  * 2 - DMA ring index out of range
1271  * 3 - Mailbox command came back as unknown
1272  **/
1273 static void
1274 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1275 {
1276         struct lpfc_vport *vport = phba->pport;
1277         struct lpfc_sli   *psli = &phba->sli;
1278         struct lpfc_sli_ring  *pring;
1279         uint32_t event_data;
1280         unsigned long temperature;
1281         struct temp_event temp_event_data;
1282         struct Scsi_Host  *shost;
1283
1284         /* If the pci channel is offline, ignore possible errors,
1285          * since we cannot communicate with the pci card anyway.
1286          */
1287         if (pci_channel_offline(phba->pcidev)) {
1288                 spin_lock_irq(&phba->hbalock);
1289                 phba->hba_flag &= ~DEFER_ERATT;
1290                 spin_unlock_irq(&phba->hbalock);
1291                 return;
1292         }
1293
1294         /* If resets are disabled then leave the HBA alone and return */
1295         if (!phba->cfg_enable_hba_reset)
1296                 return;
1297
1298         /* Send an internal error event to mgmt application */
1299         lpfc_board_errevt_to_mgmt(phba);
1300
1301         if (phba->hba_flag & DEFER_ERATT)
1302                 lpfc_handle_deferred_eratt(phba);
1303
1304         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1305                 if (phba->work_hs & HS_FFER6)
1306                         /* Re-establishing Link */
1307                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1308                                         "1301 Re-establishing Link "
1309                                         "Data: x%x x%x x%x\n",
1310                                         phba->work_hs, phba->work_status[0],
1311                                         phba->work_status[1]);
1312                 if (phba->work_hs & HS_FFER8)
1313                         /* Device Zeroization */
1314                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1315                                         "2861 Host Authentication device "
1316                                         "zeroization Data:x%x x%x x%x\n",
1317                                         phba->work_hs, phba->work_status[0],
1318                                         phba->work_status[1]);
1319
1320                 spin_lock_irq(&phba->hbalock);
1321                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1322                 spin_unlock_irq(&phba->hbalock);
1323
1324                 /*
1325                 * Firmware stops when it triggled erratt with HS_FFER6.
1326                 * That could cause the I/Os dropped by the firmware.
1327                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1328                 * retry it after re-establishing link.
1329                 */
1330                 pring = &psli->ring[psli->fcp_ring];
1331                 lpfc_sli_abort_iocb_ring(phba, pring);
1332
1333                 /*
1334                  * There was a firmware error.  Take the hba offline and then
1335                  * attempt to restart it.
1336                  */
1337                 lpfc_offline_prep(phba);
1338                 lpfc_offline(phba);
1339                 lpfc_sli_brdrestart(phba);
1340                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1341                         lpfc_unblock_mgmt_io(phba);
1342                         return;
1343                 }
1344                 lpfc_unblock_mgmt_io(phba);
1345         } else if (phba->work_hs & HS_CRIT_TEMP) {
1346                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1347                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1348                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1349                 temp_event_data.data = (uint32_t)temperature;
1350
1351                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1352                                 "0406 Adapter maximum temperature exceeded "
1353                                 "(%ld), taking this port offline "
1354                                 "Data: x%x x%x x%x\n",
1355                                 temperature, phba->work_hs,
1356                                 phba->work_status[0], phba->work_status[1]);
1357
1358                 shost = lpfc_shost_from_vport(phba->pport);
1359                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1360                                           sizeof(temp_event_data),
1361                                           (char *) &temp_event_data,
1362                                           SCSI_NL_VID_TYPE_PCI
1363                                           | PCI_VENDOR_ID_EMULEX);
1364
1365                 spin_lock_irq(&phba->hbalock);
1366                 phba->over_temp_state = HBA_OVER_TEMP;
1367                 spin_unlock_irq(&phba->hbalock);
1368                 lpfc_offline_eratt(phba);
1369
1370         } else {
1371                 /* The if clause above forces this code path when the status
1372                  * failure is a value other than FFER6. Do not call the offline
1373                  * twice. This is the adapter hardware error path.
1374                  */
1375                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1376                                 "0457 Adapter Hardware Error "
1377                                 "Data: x%x x%x x%x\n",
1378                                 phba->work_hs,
1379                                 phba->work_status[0], phba->work_status[1]);
1380
1381                 event_data = FC_REG_DUMP_EVENT;
1382                 shost = lpfc_shost_from_vport(vport);
1383                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1384                                 sizeof(event_data), (char *) &event_data,
1385                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1386
1387                 lpfc_offline_eratt(phba);
1388         }
1389         return;
1390 }
1391
1392 /**
1393  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1394  * @phba: pointer to lpfc hba data structure.
1395  *
1396  * This routine is invoked to handle the SLI4 HBA hardware error attention
1397  * conditions.
1398  **/
1399 static void
1400 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1401 {
1402         struct lpfc_vport *vport = phba->pport;
1403         uint32_t event_data;
1404         struct Scsi_Host *shost;
1405         uint32_t if_type;
1406         struct lpfc_register portstat_reg;
1407
1408         /* If the pci channel is offline, ignore possible errors, since
1409          * we cannot communicate with the pci card anyway.
1410          */
1411         if (pci_channel_offline(phba->pcidev))
1412                 return;
1413         /* If resets are disabled then leave the HBA alone and return */
1414         if (!phba->cfg_enable_hba_reset)
1415                 return;
1416
1417         /* Send an internal error event to mgmt application */
1418         lpfc_board_errevt_to_mgmt(phba);
1419
1420         /* For now, the actual action for SLI4 device handling is not
1421          * specified yet, just treated it as adaptor hardware failure
1422          */
1423         event_data = FC_REG_DUMP_EVENT;
1424         shost = lpfc_shost_from_vport(vport);
1425         fc_host_post_vendor_event(shost, fc_get_event_number(),
1426                                   sizeof(event_data), (char *) &event_data,
1427                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1428
1429         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1430         switch (if_type) {
1431         case LPFC_SLI_INTF_IF_TYPE_0:
1432                 lpfc_sli4_offline_eratt(phba);
1433                 break;
1434         case LPFC_SLI_INTF_IF_TYPE_2:
1435                 portstat_reg.word0 =
1436                         readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
1437
1438                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1439                         /* TODO: Register for Overtemp async events. */
1440                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1441                                 "2889 Port Overtemperature event, "
1442                                 "taking port\n");
1443                         spin_lock_irq(&phba->hbalock);
1444                         phba->over_temp_state = HBA_OVER_TEMP;
1445                         spin_unlock_irq(&phba->hbalock);
1446                         lpfc_sli4_offline_eratt(phba);
1447                         return;
1448                 }
1449                 if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) {
1450                         /*
1451                          * TODO: Attempt port recovery via a port reset.
1452                          * When fully implemented, the driver should
1453                          * attempt to recover the port here and return.
1454                          * For now, log an error and take the port offline.
1455                          */
1456                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1457                                         "2887 Port Error: Attempting "
1458                                         "Port Recovery\n");
1459                 }
1460                 lpfc_sli4_offline_eratt(phba);
1461                 break;
1462         case LPFC_SLI_INTF_IF_TYPE_1:
1463         default:
1464                 break;
1465         }
1466 }
1467
1468 /**
1469  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1470  * @phba: pointer to lpfc HBA data structure.
1471  *
1472  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1473  * routine from the API jump table function pointer from the lpfc_hba struct.
1474  *
1475  * Return codes
1476  *   0 - success.
1477  *   Any other value - error.
1478  **/
1479 void
1480 lpfc_handle_eratt(struct lpfc_hba *phba)
1481 {
1482         (*phba->lpfc_handle_eratt)(phba);
1483 }
1484
1485 /**
1486  * lpfc_handle_latt - The HBA link event handler
1487  * @phba: pointer to lpfc hba data structure.
1488  *
1489  * This routine is invoked from the worker thread to handle a HBA host
1490  * attention link event.
1491  **/
1492 void
1493 lpfc_handle_latt(struct lpfc_hba *phba)
1494 {
1495         struct lpfc_vport *vport = phba->pport;
1496         struct lpfc_sli   *psli = &phba->sli;
1497         LPFC_MBOXQ_t *pmb;
1498         volatile uint32_t control;
1499         struct lpfc_dmabuf *mp;
1500         int rc = 0;
1501
1502         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1503         if (!pmb) {
1504                 rc = 1;
1505                 goto lpfc_handle_latt_err_exit;
1506         }
1507
1508         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1509         if (!mp) {
1510                 rc = 2;
1511                 goto lpfc_handle_latt_free_pmb;
1512         }
1513
1514         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1515         if (!mp->virt) {
1516                 rc = 3;
1517                 goto lpfc_handle_latt_free_mp;
1518         }
1519
1520         /* Cleanup any outstanding ELS commands */
1521         lpfc_els_flush_all_cmd(phba);
1522
1523         psli->slistat.link_event++;
1524         lpfc_read_topology(phba, pmb, mp);
1525         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1526         pmb->vport = vport;
1527         /* Block ELS IOCBs until we have processed this mbox command */
1528         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1529         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1530         if (rc == MBX_NOT_FINISHED) {
1531                 rc = 4;
1532                 goto lpfc_handle_latt_free_mbuf;
1533         }
1534
1535         /* Clear Link Attention in HA REG */
1536         spin_lock_irq(&phba->hbalock);
1537         writel(HA_LATT, phba->HAregaddr);
1538         readl(phba->HAregaddr); /* flush */
1539         spin_unlock_irq(&phba->hbalock);
1540
1541         return;
1542
1543 lpfc_handle_latt_free_mbuf:
1544         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1545         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1546 lpfc_handle_latt_free_mp:
1547         kfree(mp);
1548 lpfc_handle_latt_free_pmb:
1549         mempool_free(pmb, phba->mbox_mem_pool);
1550 lpfc_handle_latt_err_exit:
1551         /* Enable Link attention interrupts */
1552         spin_lock_irq(&phba->hbalock);
1553         psli->sli_flag |= LPFC_PROCESS_LA;
1554         control = readl(phba->HCregaddr);
1555         control |= HC_LAINT_ENA;
1556         writel(control, phba->HCregaddr);
1557         readl(phba->HCregaddr); /* flush */
1558
1559         /* Clear Link Attention in HA REG */
1560         writel(HA_LATT, phba->HAregaddr);
1561         readl(phba->HAregaddr); /* flush */
1562         spin_unlock_irq(&phba->hbalock);
1563         lpfc_linkdown(phba);
1564         phba->link_state = LPFC_HBA_ERROR;
1565
1566         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1567                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1568
1569         return;
1570 }
1571
1572 /**
1573  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1574  * @phba: pointer to lpfc hba data structure.
1575  * @vpd: pointer to the vital product data.
1576  * @len: length of the vital product data in bytes.
1577  *
1578  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1579  * an array of characters. In this routine, the ModelName, ProgramType, and
1580  * ModelDesc, etc. fields of the phba data structure will be populated.
1581  *
1582  * Return codes
1583  *   0 - pointer to the VPD passed in is NULL
1584  *   1 - success
1585  **/
1586 int
1587 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1588 {
1589         uint8_t lenlo, lenhi;
1590         int Length;
1591         int i, j;
1592         int finished = 0;
1593         int index = 0;
1594
1595         if (!vpd)
1596                 return 0;
1597
1598         /* Vital Product */
1599         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1600                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1601                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1602                         (uint32_t) vpd[3]);
1603         while (!finished && (index < (len - 4))) {
1604                 switch (vpd[index]) {
1605                 case 0x82:
1606                 case 0x91:
1607                         index += 1;
1608                         lenlo = vpd[index];
1609                         index += 1;
1610                         lenhi = vpd[index];
1611                         index += 1;
1612                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1613                         index += i;
1614                         break;
1615                 case 0x90:
1616                         index += 1;
1617                         lenlo = vpd[index];
1618                         index += 1;
1619                         lenhi = vpd[index];
1620                         index += 1;
1621                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1622                         if (Length > len - index)
1623                                 Length = len - index;
1624                         while (Length > 0) {
1625                         /* Look for Serial Number */
1626                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1627                                 index += 2;
1628                                 i = vpd[index];
1629                                 index += 1;
1630                                 j = 0;
1631                                 Length -= (3+i);
1632                                 while(i--) {
1633                                         phba->SerialNumber[j++] = vpd[index++];
1634                                         if (j == 31)
1635                                                 break;
1636                                 }
1637                                 phba->SerialNumber[j] = 0;
1638                                 continue;
1639                         }
1640                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1641                                 phba->vpd_flag |= VPD_MODEL_DESC;
1642                                 index += 2;
1643                                 i = vpd[index];
1644                                 index += 1;
1645                                 j = 0;
1646                                 Length -= (3+i);
1647                                 while(i--) {
1648                                         phba->ModelDesc[j++] = vpd[index++];
1649                                         if (j == 255)
1650                                                 break;
1651                                 }
1652                                 phba->ModelDesc[j] = 0;
1653                                 continue;
1654                         }
1655                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1656                                 phba->vpd_flag |= VPD_MODEL_NAME;
1657                                 index += 2;
1658                                 i = vpd[index];
1659                                 index += 1;
1660                                 j = 0;
1661                                 Length -= (3+i);
1662                                 while(i--) {
1663                                         phba->ModelName[j++] = vpd[index++];
1664                                         if (j == 79)
1665                                                 break;
1666                                 }
1667                                 phba->ModelName[j] = 0;
1668                                 continue;
1669                         }
1670                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1671                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1672                                 index += 2;
1673                                 i = vpd[index];
1674                                 index += 1;
1675                                 j = 0;
1676                                 Length -= (3+i);
1677                                 while(i--) {
1678                                         phba->ProgramType[j++] = vpd[index++];
1679                                         if (j == 255)
1680                                                 break;
1681                                 }
1682                                 phba->ProgramType[j] = 0;
1683                                 continue;
1684                         }
1685                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1686                                 phba->vpd_flag |= VPD_PORT;
1687                                 index += 2;
1688                                 i = vpd[index];
1689                                 index += 1;
1690                                 j = 0;
1691                                 Length -= (3+i);
1692                                 while(i--) {
1693                                 phba->Port[j++] = vpd[index++];
1694                                 if (j == 19)
1695                                         break;
1696                                 }
1697                                 phba->Port[j] = 0;
1698                                 continue;
1699                         }
1700                         else {
1701                                 index += 2;
1702                                 i = vpd[index];
1703                                 index += 1;
1704                                 index += i;
1705                                 Length -= (3 + i);
1706                         }
1707                 }
1708                 finished = 0;
1709                 break;
1710                 case 0x78:
1711                         finished = 1;
1712                         break;
1713                 default:
1714                         index ++;
1715                         break;
1716                 }
1717         }
1718
1719         return(1);
1720 }
1721
1722 /**
1723  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1724  * @phba: pointer to lpfc hba data structure.
1725  * @mdp: pointer to the data structure to hold the derived model name.
1726  * @descp: pointer to the data structure to hold the derived description.
1727  *
1728  * This routine retrieves HBA's description based on its registered PCI device
1729  * ID. The @descp passed into this function points to an array of 256 chars. It
1730  * shall be returned with the model name, maximum speed, and the host bus type.
1731  * The @mdp passed into this function points to an array of 80 chars. When the
1732  * function returns, the @mdp will be filled with the model name.
1733  **/
1734 static void
1735 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1736 {
1737         lpfc_vpd_t *vp;
1738         uint16_t dev_id = phba->pcidev->device;
1739         int max_speed;
1740         int GE = 0;
1741         int oneConnect = 0; /* default is not a oneConnect */
1742         struct {
1743                 char *name;
1744                 char *bus;
1745                 char *function;
1746         } m = {"<Unknown>", "", ""};
1747
1748         if (mdp && mdp[0] != '\0'
1749                 && descp && descp[0] != '\0')
1750                 return;
1751
1752         if (phba->lmt & LMT_10Gb)
1753                 max_speed = 10;
1754         else if (phba->lmt & LMT_8Gb)
1755                 max_speed = 8;
1756         else if (phba->lmt & LMT_4Gb)
1757                 max_speed = 4;
1758         else if (phba->lmt & LMT_2Gb)
1759                 max_speed = 2;
1760         else
1761                 max_speed = 1;
1762
1763         vp = &phba->vpd;
1764
1765         switch (dev_id) {
1766         case PCI_DEVICE_ID_FIREFLY:
1767                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1768                 break;
1769         case PCI_DEVICE_ID_SUPERFLY:
1770                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1771                         m = (typeof(m)){"LP7000", "PCI",
1772                                         "Fibre Channel Adapter"};
1773                 else
1774                         m = (typeof(m)){"LP7000E", "PCI",
1775                                         "Fibre Channel Adapter"};
1776                 break;
1777         case PCI_DEVICE_ID_DRAGONFLY:
1778                 m = (typeof(m)){"LP8000", "PCI",
1779                                 "Fibre Channel Adapter"};
1780                 break;
1781         case PCI_DEVICE_ID_CENTAUR:
1782                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1783                         m = (typeof(m)){"LP9002", "PCI",
1784                                         "Fibre Channel Adapter"};
1785                 else
1786                         m = (typeof(m)){"LP9000", "PCI",
1787                                         "Fibre Channel Adapter"};
1788                 break;
1789         case PCI_DEVICE_ID_RFLY:
1790                 m = (typeof(m)){"LP952", "PCI",
1791                                 "Fibre Channel Adapter"};
1792                 break;
1793         case PCI_DEVICE_ID_PEGASUS:
1794                 m = (typeof(m)){"LP9802", "PCI-X",
1795                                 "Fibre Channel Adapter"};
1796                 break;
1797         case PCI_DEVICE_ID_THOR:
1798                 m = (typeof(m)){"LP10000", "PCI-X",
1799                                 "Fibre Channel Adapter"};
1800                 break;
1801         case PCI_DEVICE_ID_VIPER:
1802                 m = (typeof(m)){"LPX1000",  "PCI-X",
1803                                 "Fibre Channel Adapter"};
1804                 break;
1805         case PCI_DEVICE_ID_PFLY:
1806                 m = (typeof(m)){"LP982", "PCI-X",
1807                                 "Fibre Channel Adapter"};
1808                 break;
1809         case PCI_DEVICE_ID_TFLY:
1810                 m = (typeof(m)){"LP1050", "PCI-X",
1811                                 "Fibre Channel Adapter"};
1812                 break;
1813         case PCI_DEVICE_ID_HELIOS:
1814                 m = (typeof(m)){"LP11000", "PCI-X2",
1815                                 "Fibre Channel Adapter"};
1816                 break;
1817         case PCI_DEVICE_ID_HELIOS_SCSP:
1818                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1819                                 "Fibre Channel Adapter"};
1820                 break;
1821         case PCI_DEVICE_ID_HELIOS_DCSP:
1822                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1823                                 "Fibre Channel Adapter"};
1824                 break;
1825         case PCI_DEVICE_ID_NEPTUNE:
1826                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1827                 break;
1828         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1829                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1830                 break;
1831         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1832                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1833                 break;
1834         case PCI_DEVICE_ID_BMID:
1835                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1836                 break;
1837         case PCI_DEVICE_ID_BSMB:
1838                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1839                 break;
1840         case PCI_DEVICE_ID_ZEPHYR:
1841                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1842                 break;
1843         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1844                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1845                 break;
1846         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1847                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1848                 GE = 1;
1849                 break;
1850         case PCI_DEVICE_ID_ZMID:
1851                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1852                 break;
1853         case PCI_DEVICE_ID_ZSMB:
1854                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1855                 break;
1856         case PCI_DEVICE_ID_LP101:
1857                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1858                 break;
1859         case PCI_DEVICE_ID_LP10000S:
1860                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1861                 break;
1862         case PCI_DEVICE_ID_LP11000S:
1863                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1864                 break;
1865         case PCI_DEVICE_ID_LPE11000S:
1866                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1867                 break;
1868         case PCI_DEVICE_ID_SAT:
1869                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1870                 break;
1871         case PCI_DEVICE_ID_SAT_MID:
1872                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1873                 break;
1874         case PCI_DEVICE_ID_SAT_SMB:
1875                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1876                 break;
1877         case PCI_DEVICE_ID_SAT_DCSP:
1878                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1879                 break;
1880         case PCI_DEVICE_ID_SAT_SCSP:
1881                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1882                 break;
1883         case PCI_DEVICE_ID_SAT_S:
1884                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1885                 break;
1886         case PCI_DEVICE_ID_HORNET:
1887                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1888                 GE = 1;
1889                 break;
1890         case PCI_DEVICE_ID_PROTEUS_VF:
1891                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1892                                 "Fibre Channel Adapter"};
1893                 break;
1894         case PCI_DEVICE_ID_PROTEUS_PF:
1895                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1896                                 "Fibre Channel Adapter"};
1897                 break;
1898         case PCI_DEVICE_ID_PROTEUS_S:
1899                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1900                                 "Fibre Channel Adapter"};
1901                 break;
1902         case PCI_DEVICE_ID_TIGERSHARK:
1903                 oneConnect = 1;
1904                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1905                 break;
1906         case PCI_DEVICE_ID_TOMCAT:
1907                 oneConnect = 1;
1908                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1909                 break;
1910         case PCI_DEVICE_ID_FALCON:
1911                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1912                                 "EmulexSecure Fibre"};
1913                 break;
1914         case PCI_DEVICE_ID_BALIUS:
1915                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1916                                 "Fibre Channel Adapter"};
1917                 break;
1918         case PCI_DEVICE_ID_LANCER_FC:
1919                 oneConnect = 1;
1920                 m = (typeof(m)){"Undefined", "PCIe", "Fibre Channel Adapter"};
1921                 break;
1922         case PCI_DEVICE_ID_LANCER_FCOE:
1923                 oneConnect = 1;
1924                 m = (typeof(m)){"Undefined", "PCIe", "FCoE"};
1925                 break;
1926         default:
1927                 m = (typeof(m)){"Unknown", "", ""};
1928                 break;
1929         }
1930
1931         if (mdp && mdp[0] == '\0')
1932                 snprintf(mdp, 79,"%s", m.name);
1933         /* oneConnect hba requires special processing, they are all initiators
1934          * and we put the port number on the end
1935          */
1936         if (descp && descp[0] == '\0') {
1937                 if (oneConnect)
1938                         snprintf(descp, 255,
1939                                 "Emulex OneConnect %s, %s Initiator, Port %s",
1940                                 m.name, m.function,
1941                                 phba->Port);
1942                 else
1943                         snprintf(descp, 255,
1944                                 "Emulex %s %d%s %s %s",
1945                                 m.name, max_speed, (GE) ? "GE" : "Gb",
1946                                 m.bus, m.function);
1947         }
1948 }
1949
1950 /**
1951  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1952  * @phba: pointer to lpfc hba data structure.
1953  * @pring: pointer to a IOCB ring.
1954  * @cnt: the number of IOCBs to be posted to the IOCB ring.
1955  *
1956  * This routine posts a given number of IOCBs with the associated DMA buffer
1957  * descriptors specified by the cnt argument to the given IOCB ring.
1958  *
1959  * Return codes
1960  *   The number of IOCBs NOT able to be posted to the IOCB ring.
1961  **/
1962 int
1963 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1964 {
1965         IOCB_t *icmd;
1966         struct lpfc_iocbq *iocb;
1967         struct lpfc_dmabuf *mp1, *mp2;
1968
1969         cnt += pring->missbufcnt;
1970
1971         /* While there are buffers to post */
1972         while (cnt > 0) {
1973                 /* Allocate buffer for  command iocb */
1974                 iocb = lpfc_sli_get_iocbq(phba);
1975                 if (iocb == NULL) {
1976                         pring->missbufcnt = cnt;
1977                         return cnt;
1978                 }
1979                 icmd = &iocb->iocb;
1980
1981                 /* 2 buffers can be posted per command */
1982                 /* Allocate buffer to post */
1983                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1984                 if (mp1)
1985                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1986                 if (!mp1 || !mp1->virt) {
1987                         kfree(mp1);
1988                         lpfc_sli_release_iocbq(phba, iocb);
1989                         pring->missbufcnt = cnt;
1990                         return cnt;
1991                 }
1992
1993                 INIT_LIST_HEAD(&mp1->list);
1994                 /* Allocate buffer to post */
1995                 if (cnt > 1) {
1996                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1997                         if (mp2)
1998                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1999                                                             &mp2->phys);
2000                         if (!mp2 || !mp2->virt) {
2001                                 kfree(mp2);
2002                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2003                                 kfree(mp1);
2004                                 lpfc_sli_release_iocbq(phba, iocb);
2005                                 pring->missbufcnt = cnt;
2006                                 return cnt;
2007                         }
2008
2009                         INIT_LIST_HEAD(&mp2->list);
2010                 } else {
2011                         mp2 = NULL;
2012                 }
2013
2014                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2015                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2016                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2017                 icmd->ulpBdeCount = 1;
2018                 cnt--;
2019                 if (mp2) {
2020                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2021                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2022                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2023                         cnt--;
2024                         icmd->ulpBdeCount = 2;
2025                 }
2026
2027                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2028                 icmd->ulpLe = 1;
2029
2030                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2031                     IOCB_ERROR) {
2032                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2033                         kfree(mp1);
2034                         cnt++;
2035                         if (mp2) {
2036                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2037                                 kfree(mp2);
2038                                 cnt++;
2039                         }
2040                         lpfc_sli_release_iocbq(phba, iocb);
2041                         pring->missbufcnt = cnt;
2042                         return cnt;
2043                 }
2044                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2045                 if (mp2)
2046                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2047         }
2048         pring->missbufcnt = 0;
2049         return 0;
2050 }
2051
2052 /**
2053  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2054  * @phba: pointer to lpfc hba data structure.
2055  *
2056  * This routine posts initial receive IOCB buffers to the ELS ring. The
2057  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2058  * set to 64 IOCBs.
2059  *
2060  * Return codes
2061  *   0 - success (currently always success)
2062  **/
2063 static int
2064 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2065 {
2066         struct lpfc_sli *psli = &phba->sli;
2067
2068         /* Ring 0, ELS / CT buffers */
2069         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2070         /* Ring 2 - FCP no buffers needed */
2071
2072         return 0;
2073 }
2074
2075 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2076
2077 /**
2078  * lpfc_sha_init - Set up initial array of hash table entries
2079  * @HashResultPointer: pointer to an array as hash table.
2080  *
2081  * This routine sets up the initial values to the array of hash table entries
2082  * for the LC HBAs.
2083  **/
2084 static void
2085 lpfc_sha_init(uint32_t * HashResultPointer)
2086 {
2087         HashResultPointer[0] = 0x67452301;
2088         HashResultPointer[1] = 0xEFCDAB89;
2089         HashResultPointer[2] = 0x98BADCFE;
2090         HashResultPointer[3] = 0x10325476;
2091         HashResultPointer[4] = 0xC3D2E1F0;
2092 }
2093
2094 /**
2095  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2096  * @HashResultPointer: pointer to an initial/result hash table.
2097  * @HashWorkingPointer: pointer to an working hash table.
2098  *
2099  * This routine iterates an initial hash table pointed by @HashResultPointer
2100  * with the values from the working hash table pointeed by @HashWorkingPointer.
2101  * The results are putting back to the initial hash table, returned through
2102  * the @HashResultPointer as the result hash table.
2103  **/
2104 static void
2105 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2106 {
2107         int t;
2108         uint32_t TEMP;
2109         uint32_t A, B, C, D, E;
2110         t = 16;
2111         do {
2112                 HashWorkingPointer[t] =
2113                     S(1,
2114                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2115                                                                      8] ^
2116                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2117         } while (++t <= 79);
2118         t = 0;
2119         A = HashResultPointer[0];
2120         B = HashResultPointer[1];
2121         C = HashResultPointer[2];
2122         D = HashResultPointer[3];
2123         E = HashResultPointer[4];
2124
2125         do {
2126                 if (t < 20) {
2127                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2128                 } else if (t < 40) {
2129                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2130                 } else if (t < 60) {
2131                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2132                 } else {
2133                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2134                 }
2135                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2136                 E = D;
2137                 D = C;
2138                 C = S(30, B);
2139                 B = A;
2140                 A = TEMP;
2141         } while (++t <= 79);
2142
2143         HashResultPointer[0] += A;
2144         HashResultPointer[1] += B;
2145         HashResultPointer[2] += C;
2146         HashResultPointer[3] += D;
2147         HashResultPointer[4] += E;
2148
2149 }
2150
2151 /**
2152  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2153  * @RandomChallenge: pointer to the entry of host challenge random number array.
2154  * @HashWorking: pointer to the entry of the working hash array.
2155  *
2156  * This routine calculates the working hash array referred by @HashWorking
2157  * from the challenge random numbers associated with the host, referred by
2158  * @RandomChallenge. The result is put into the entry of the working hash
2159  * array and returned by reference through @HashWorking.
2160  **/
2161 static void
2162 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2163 {
2164         *HashWorking = (*RandomChallenge ^ *HashWorking);
2165 }
2166
2167 /**
2168  * lpfc_hba_init - Perform special handling for LC HBA initialization
2169  * @phba: pointer to lpfc hba data structure.
2170  * @hbainit: pointer to an array of unsigned 32-bit integers.
2171  *
2172  * This routine performs the special handling for LC HBA initialization.
2173  **/
2174 void
2175 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2176 {
2177         int t;
2178         uint32_t *HashWorking;
2179         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2180
2181         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2182         if (!HashWorking)
2183                 return;
2184
2185         HashWorking[0] = HashWorking[78] = *pwwnn++;
2186         HashWorking[1] = HashWorking[79] = *pwwnn;
2187
2188         for (t = 0; t < 7; t++)
2189                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2190
2191         lpfc_sha_init(hbainit);
2192         lpfc_sha_iterate(hbainit, HashWorking);
2193         kfree(HashWorking);
2194 }
2195
2196 /**
2197  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2198  * @vport: pointer to a virtual N_Port data structure.
2199  *
2200  * This routine performs the necessary cleanups before deleting the @vport.
2201  * It invokes the discovery state machine to perform necessary state
2202  * transitions and to release the ndlps associated with the @vport. Note,
2203  * the physical port is treated as @vport 0.
2204  **/
2205 void
2206 lpfc_cleanup(struct lpfc_vport *vport)
2207 {
2208         struct lpfc_hba   *phba = vport->phba;
2209         struct lpfc_nodelist *ndlp, *next_ndlp;
2210         int i = 0;
2211
2212         if (phba->link_state > LPFC_LINK_DOWN)
2213                 lpfc_port_link_failure(vport);
2214
2215         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2216                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2217                         ndlp = lpfc_enable_node(vport, ndlp,
2218                                                 NLP_STE_UNUSED_NODE);
2219                         if (!ndlp)
2220                                 continue;
2221                         spin_lock_irq(&phba->ndlp_lock);
2222                         NLP_SET_FREE_REQ(ndlp);
2223                         spin_unlock_irq(&phba->ndlp_lock);
2224                         /* Trigger the release of the ndlp memory */
2225                         lpfc_nlp_put(ndlp);
2226                         continue;
2227                 }
2228                 spin_lock_irq(&phba->ndlp_lock);
2229                 if (NLP_CHK_FREE_REQ(ndlp)) {
2230                         /* The ndlp should not be in memory free mode already */
2231                         spin_unlock_irq(&phba->ndlp_lock);
2232                         continue;
2233                 } else
2234                         /* Indicate request for freeing ndlp memory */
2235                         NLP_SET_FREE_REQ(ndlp);
2236                 spin_unlock_irq(&phba->ndlp_lock);
2237
2238                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2239                     ndlp->nlp_DID == Fabric_DID) {
2240                         /* Just free up ndlp with Fabric_DID for vports */
2241                         lpfc_nlp_put(ndlp);
2242                         continue;
2243                 }
2244
2245                 if (ndlp->nlp_type & NLP_FABRIC)
2246                         lpfc_disc_state_machine(vport, ndlp, NULL,
2247                                         NLP_EVT_DEVICE_RECOVERY);
2248
2249                 lpfc_disc_state_machine(vport, ndlp, NULL,
2250                                              NLP_EVT_DEVICE_RM);
2251
2252         }
2253
2254         /* At this point, ALL ndlp's should be gone
2255          * because of the previous NLP_EVT_DEVICE_RM.
2256          * Lets wait for this to happen, if needed.
2257          */
2258         while (!list_empty(&vport->fc_nodes)) {
2259                 if (i++ > 3000) {
2260                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2261                                 "0233 Nodelist not empty\n");
2262                         list_for_each_entry_safe(ndlp, next_ndlp,
2263                                                 &vport->fc_nodes, nlp_listp) {
2264                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2265                                                 LOG_NODE,
2266                                                 "0282 did:x%x ndlp:x%p "
2267                                                 "usgmap:x%x refcnt:%d\n",
2268                                                 ndlp->nlp_DID, (void *)ndlp,
2269                                                 ndlp->nlp_usg_map,
2270                                                 atomic_read(
2271                                                         &ndlp->kref.refcount));
2272                         }
2273                         break;
2274                 }
2275
2276                 /* Wait for any activity on ndlps to settle */
2277                 msleep(10);
2278         }
2279         lpfc_cleanup_vports_rrqs(vport, NULL);
2280 }
2281
2282 /**
2283  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2284  * @vport: pointer to a virtual N_Port data structure.
2285  *
2286  * This routine stops all the timers associated with a @vport. This function
2287  * is invoked before disabling or deleting a @vport. Note that the physical
2288  * port is treated as @vport 0.
2289  **/
2290 void
2291 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2292 {
2293         del_timer_sync(&vport->els_tmofunc);
2294         del_timer_sync(&vport->fc_fdmitmo);
2295         del_timer_sync(&vport->delayed_disc_tmo);
2296         lpfc_can_disctmo(vport);
2297         return;
2298 }
2299
2300 /**
2301  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2302  * @phba: pointer to lpfc hba data structure.
2303  *
2304  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2305  * caller of this routine should already hold the host lock.
2306  **/
2307 void
2308 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2309 {
2310         /* Clear pending FCF rediscovery wait flag */
2311         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2312
2313         /* Now, try to stop the timer */
2314         del_timer(&phba->fcf.redisc_wait);
2315 }
2316
2317 /**
2318  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2319  * @phba: pointer to lpfc hba data structure.
2320  *
2321  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2322  * checks whether the FCF rediscovery wait timer is pending with the host
2323  * lock held before proceeding with disabling the timer and clearing the
2324  * wait timer pendig flag.
2325  **/
2326 void
2327 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2328 {
2329         spin_lock_irq(&phba->hbalock);
2330         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2331                 /* FCF rediscovery timer already fired or stopped */
2332                 spin_unlock_irq(&phba->hbalock);
2333                 return;
2334         }
2335         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2336         /* Clear failover in progress flags */
2337         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2338         spin_unlock_irq(&phba->hbalock);
2339 }
2340
2341 /**
2342  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2343  * @phba: pointer to lpfc hba data structure.
2344  *
2345  * This routine stops all the timers associated with a HBA. This function is
2346  * invoked before either putting a HBA offline or unloading the driver.
2347  **/
2348 void
2349 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2350 {
2351         lpfc_stop_vport_timers(phba->pport);
2352         del_timer_sync(&phba->sli.mbox_tmo);
2353         del_timer_sync(&phba->fabric_block_timer);
2354         del_timer_sync(&phba->eratt_poll);
2355         del_timer_sync(&phba->hb_tmofunc);
2356         if (phba->sli_rev == LPFC_SLI_REV4) {
2357                 del_timer_sync(&phba->rrq_tmr);
2358                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2359         }
2360         phba->hb_outstanding = 0;
2361
2362         switch (phba->pci_dev_grp) {
2363         case LPFC_PCI_DEV_LP:
2364                 /* Stop any LightPulse device specific driver timers */
2365                 del_timer_sync(&phba->fcp_poll_timer);
2366                 break;
2367         case LPFC_PCI_DEV_OC:
2368                 /* Stop any OneConnect device sepcific driver timers */
2369                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2370                 break;
2371         default:
2372                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2373                                 "0297 Invalid device group (x%x)\n",
2374                                 phba->pci_dev_grp);
2375                 break;
2376         }
2377         return;
2378 }
2379
2380 /**
2381  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2382  * @phba: pointer to lpfc hba data structure.
2383  *
2384  * This routine marks a HBA's management interface as blocked. Once the HBA's
2385  * management interface is marked as blocked, all the user space access to
2386  * the HBA, whether they are from sysfs interface or libdfc interface will
2387  * all be blocked. The HBA is set to block the management interface when the
2388  * driver prepares the HBA interface for online or offline.
2389  **/
2390 static void
2391 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2392 {
2393         unsigned long iflag;
2394         uint8_t actcmd = MBX_HEARTBEAT;
2395         unsigned long timeout;
2396
2397
2398         spin_lock_irqsave(&phba->hbalock, iflag);
2399         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2400         if (phba->sli.mbox_active)
2401                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2402         spin_unlock_irqrestore(&phba->hbalock, iflag);
2403         /* Determine how long we might wait for the active mailbox
2404          * command to be gracefully completed by firmware.
2405          */
2406         timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2407                         jiffies;
2408         /* Wait for the outstnading mailbox command to complete */
2409         while (phba->sli.mbox_active) {
2410                 /* Check active mailbox complete status every 2ms */
2411                 msleep(2);
2412                 if (time_after(jiffies, timeout)) {
2413                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2414                                 "2813 Mgmt IO is Blocked %x "
2415                                 "- mbox cmd %x still active\n",
2416                                 phba->sli.sli_flag, actcmd);
2417                         break;
2418                 }
2419         }
2420 }
2421
2422 /**
2423  * lpfc_online - Initialize and bring a HBA online
2424  * @phba: pointer to lpfc hba data structure.
2425  *
2426  * This routine initializes the HBA and brings a HBA online. During this
2427  * process, the management interface is blocked to prevent user space access
2428  * to the HBA interfering with the driver initialization.
2429  *
2430  * Return codes
2431  *   0 - successful
2432  *   1 - failed
2433  **/
2434 int
2435 lpfc_online(struct lpfc_hba *phba)
2436 {
2437         struct lpfc_vport *vport;
2438         struct lpfc_vport **vports;
2439         int i;
2440
2441         if (!phba)
2442                 return 0;
2443         vport = phba->pport;
2444
2445         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2446                 return 0;
2447
2448         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2449                         "0458 Bring Adapter online\n");
2450
2451         lpfc_block_mgmt_io(phba);
2452
2453         if (!lpfc_sli_queue_setup(phba)) {
2454                 lpfc_unblock_mgmt_io(phba);
2455                 return 1;
2456         }
2457
2458         if (phba->sli_rev == LPFC_SLI_REV4) {
2459                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2460                         lpfc_unblock_mgmt_io(phba);
2461                         return 1;
2462                 }
2463         } else {
2464                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2465                         lpfc_unblock_mgmt_io(phba);
2466                         return 1;
2467                 }
2468         }
2469
2470         vports = lpfc_create_vport_work_array(phba);
2471         if (vports != NULL)
2472                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2473                         struct Scsi_Host *shost;
2474                         shost = lpfc_shost_from_vport(vports[i]);
2475                         spin_lock_irq(shost->host_lock);
2476                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2477                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2478                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2479                         if (phba->sli_rev == LPFC_SLI_REV4)
2480                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2481                         spin_unlock_irq(shost->host_lock);
2482                 }
2483                 lpfc_destroy_vport_work_array(phba, vports);
2484
2485         lpfc_unblock_mgmt_io(phba);
2486         return 0;
2487 }
2488
2489 /**
2490  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2491  * @phba: pointer to lpfc hba data structure.
2492  *
2493  * This routine marks a HBA's management interface as not blocked. Once the
2494  * HBA's management interface is marked as not blocked, all the user space
2495  * access to the HBA, whether they are from sysfs interface or libdfc
2496  * interface will be allowed. The HBA is set to block the management interface
2497  * when the driver prepares the HBA interface for online or offline and then
2498  * set to unblock the management interface afterwards.
2499  **/
2500 void
2501 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2502 {
2503         unsigned long iflag;
2504
2505         spin_lock_irqsave(&phba->hbalock, iflag);
2506         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2507         spin_unlock_irqrestore(&phba->hbalock, iflag);
2508 }
2509
2510 /**
2511  * lpfc_offline_prep - Prepare a HBA to be brought offline
2512  * @phba: pointer to lpfc hba data structure.
2513  *
2514  * This routine is invoked to prepare a HBA to be brought offline. It performs
2515  * unregistration login to all the nodes on all vports and flushes the mailbox
2516  * queue to make it ready to be brought offline.
2517  **/
2518 void
2519 lpfc_offline_prep(struct lpfc_hba * phba)
2520 {
2521         struct lpfc_vport *vport = phba->pport;
2522         struct lpfc_nodelist  *ndlp, *next_ndlp;
2523         struct lpfc_vport **vports;
2524         struct Scsi_Host *shost;
2525         int i;
2526
2527         if (vport->fc_flag & FC_OFFLINE_MODE)
2528                 return;
2529
2530         lpfc_block_mgmt_io(phba);
2531
2532         lpfc_linkdown(phba);
2533
2534         /* Issue an unreg_login to all nodes on all vports */
2535         vports = lpfc_create_vport_work_array(phba);
2536         if (vports != NULL) {
2537                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2538                         if (vports[i]->load_flag & FC_UNLOADING)
2539                                 continue;
2540                         shost = lpfc_shost_from_vport(vports[i]);
2541                         spin_lock_irq(shost->host_lock);
2542                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2543                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2544                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2545                         spin_unlock_irq(shost->host_lock);
2546
2547                         shost = lpfc_shost_from_vport(vports[i]);
2548                         list_for_each_entry_safe(ndlp, next_ndlp,
2549                                                  &vports[i]->fc_nodes,
2550                                                  nlp_listp) {
2551                                 if (!NLP_CHK_NODE_ACT(ndlp))
2552                                         continue;
2553                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2554                                         continue;
2555                                 if (ndlp->nlp_type & NLP_FABRIC) {
2556                                         lpfc_disc_state_machine(vports[i], ndlp,
2557                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2558                                         lpfc_disc_state_machine(vports[i], ndlp,
2559                                                 NULL, NLP_EVT_DEVICE_RM);
2560                                 }
2561                                 spin_lock_irq(shost->host_lock);
2562                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2563                                 spin_unlock_irq(shost->host_lock);
2564                                 lpfc_unreg_rpi(vports[i], ndlp);
2565                         }
2566                 }
2567         }
2568         lpfc_destroy_vport_work_array(phba, vports);
2569
2570         lpfc_sli_mbox_sys_shutdown(phba);
2571 }
2572
2573 /**
2574  * lpfc_offline - Bring a HBA offline
2575  * @phba: pointer to lpfc hba data structure.
2576  *
2577  * This routine actually brings a HBA offline. It stops all the timers
2578  * associated with the HBA, brings down the SLI layer, and eventually
2579  * marks the HBA as in offline state for the upper layer protocol.
2580  **/
2581 void
2582 lpfc_offline(struct lpfc_hba *phba)
2583 {
2584         struct Scsi_Host  *shost;
2585         struct lpfc_vport **vports;
2586         int i;
2587
2588         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2589                 return;
2590
2591         /* stop port and all timers associated with this hba */
2592         lpfc_stop_port(phba);
2593         vports = lpfc_create_vport_work_array(phba);
2594         if (vports != NULL)
2595                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2596                         lpfc_stop_vport_timers(vports[i]);
2597         lpfc_destroy_vport_work_array(phba, vports);
2598         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2599                         "0460 Bring Adapter offline\n");
2600         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2601            now.  */
2602         lpfc_sli_hba_down(phba);
2603         spin_lock_irq(&phba->hbalock);
2604         phba->work_ha = 0;
2605         spin_unlock_irq(&phba->hbalock);
2606         vports = lpfc_create_vport_work_array(phba);
2607         if (vports != NULL)
2608                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2609                         shost = lpfc_shost_from_vport(vports[i]);
2610                         spin_lock_irq(shost->host_lock);
2611                         vports[i]->work_port_events = 0;
2612                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2613                         spin_unlock_irq(shost->host_lock);
2614                 }
2615         lpfc_destroy_vport_work_array(phba, vports);
2616 }
2617
2618 /**
2619  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2620  * @phba: pointer to lpfc hba data structure.
2621  *
2622  * This routine is to free all the SCSI buffers and IOCBs from the driver
2623  * list back to kernel. It is called from lpfc_pci_remove_one to free
2624  * the internal resources before the device is removed from the system.
2625  *
2626  * Return codes
2627  *   0 - successful (for now, it always returns 0)
2628  **/
2629 static int
2630 lpfc_scsi_free(struct lpfc_hba *phba)
2631 {
2632         struct lpfc_scsi_buf *sb, *sb_next;
2633         struct lpfc_iocbq *io, *io_next;
2634
2635         spin_lock_irq(&phba->hbalock);
2636         /* Release all the lpfc_scsi_bufs maintained by this host. */
2637         spin_lock(&phba->scsi_buf_list_lock);
2638         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2639                 list_del(&sb->list);
2640                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2641                               sb->dma_handle);
2642                 kfree(sb);
2643                 phba->total_scsi_bufs--;
2644         }
2645         spin_unlock(&phba->scsi_buf_list_lock);
2646
2647         /* Release all the lpfc_iocbq entries maintained by this host. */
2648         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2649                 list_del(&io->list);
2650                 kfree(io);
2651                 phba->total_iocbq_bufs--;
2652         }
2653         spin_unlock_irq(&phba->hbalock);
2654         return 0;
2655 }
2656
2657 /**
2658  * lpfc_create_port - Create an FC port
2659  * @phba: pointer to lpfc hba data structure.
2660  * @instance: a unique integer ID to this FC port.
2661  * @dev: pointer to the device data structure.
2662  *
2663  * This routine creates a FC port for the upper layer protocol. The FC port
2664  * can be created on top of either a physical port or a virtual port provided
2665  * by the HBA. This routine also allocates a SCSI host data structure (shost)
2666  * and associates the FC port created before adding the shost into the SCSI
2667  * layer.
2668  *
2669  * Return codes
2670  *   @vport - pointer to the virtual N_Port data structure.
2671  *   NULL - port create failed.
2672  **/
2673 struct lpfc_vport *
2674 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2675 {
2676         struct lpfc_vport *vport;
2677         struct Scsi_Host  *shost;
2678         int error = 0;
2679
2680         if (dev != &phba->pcidev->dev)
2681                 shost = scsi_host_alloc(&lpfc_vport_template,
2682                                         sizeof(struct lpfc_vport));
2683         else
2684                 shost = scsi_host_alloc(&lpfc_template,
2685                                         sizeof(struct lpfc_vport));
2686         if (!shost)
2687                 goto out;
2688
2689         vport = (struct lpfc_vport *) shost->hostdata;
2690         vport->phba = phba;
2691         vport->load_flag |= FC_LOADING;
2692         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2693         vport->fc_rscn_flush = 0;
2694
2695         lpfc_get_vport_cfgparam(vport);
2696         shost->unique_id = instance;
2697         shost->max_id = LPFC_MAX_TARGET;
2698         shost->max_lun = vport->cfg_max_luns;
2699         shost->this_id = -1;
2700         shost->max_cmd_len = 16;
2701         if (phba->sli_rev == LPFC_SLI_REV4) {
2702                 shost->dma_boundary =
2703                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2704                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2705         }
2706
2707         /*
2708          * Set initial can_queue value since 0 is no longer supported and
2709          * scsi_add_host will fail. This will be adjusted later based on the
2710          * max xri value determined in hba setup.
2711          */
2712         shost->can_queue = phba->cfg_hba_queue_depth - 10;
2713         if (dev != &phba->pcidev->dev) {
2714                 shost->transportt = lpfc_vport_transport_template;
2715                 vport->port_type = LPFC_NPIV_PORT;
2716         } else {
2717                 shost->transportt = lpfc_transport_template;
2718                 vport->port_type = LPFC_PHYSICAL_PORT;
2719         }
2720
2721         /* Initialize all internally managed lists. */
2722         INIT_LIST_HEAD(&vport->fc_nodes);
2723         INIT_LIST_HEAD(&vport->rcv_buffer_list);
2724         spin_lock_init(&vport->work_port_lock);
2725
2726         init_timer(&vport->fc_disctmo);
2727         vport->fc_disctmo.function = lpfc_disc_timeout;
2728         vport->fc_disctmo.data = (unsigned long)vport;
2729
2730         init_timer(&vport->fc_fdmitmo);
2731         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2732         vport->fc_fdmitmo.data = (unsigned long)vport;
2733
2734         init_timer(&vport->els_tmofunc);
2735         vport->els_tmofunc.function = lpfc_els_timeout;
2736         vport->els_tmofunc.data = (unsigned long)vport;
2737
2738         init_timer(&vport->delayed_disc_tmo);
2739         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
2740         vport->delayed_disc_tmo.data = (unsigned long)vport;
2741
2742         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2743         if (error)
2744                 goto out_put_shost;
2745
2746         spin_lock_irq(&phba->hbalock);
2747         list_add_tail(&vport->listentry, &phba->port_list);
2748         spin_unlock_irq(&phba->hbalock);
2749         return vport;
2750
2751 out_put_shost:
2752         scsi_host_put(shost);
2753 out:
2754         return NULL;
2755 }
2756
2757 /**
2758  * destroy_port -  destroy an FC port
2759  * @vport: pointer to an lpfc virtual N_Port data structure.
2760  *
2761  * This routine destroys a FC port from the upper layer protocol. All the
2762  * resources associated with the port are released.
2763  **/
2764 void
2765 destroy_port(struct lpfc_vport *vport)
2766 {
2767         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2768         struct lpfc_hba  *phba = vport->phba;
2769
2770         lpfc_debugfs_terminate(vport);
2771         fc_remove_host(shost);
2772         scsi_remove_host(shost);
2773
2774         spin_lock_irq(&phba->hbalock);
2775         list_del_init(&vport->listentry);
2776         spin_unlock_irq(&phba->hbalock);
2777
2778         lpfc_cleanup(vport);
2779         return;
2780 }
2781
2782 /**
2783  * lpfc_get_instance - Get a unique integer ID
2784  *
2785  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2786  * uses the kernel idr facility to perform the task.
2787  *
2788  * Return codes:
2789  *   instance - a unique integer ID allocated as the new instance.
2790  *   -1 - lpfc get instance failed.
2791  **/
2792 int
2793 lpfc_get_instance(void)
2794 {
2795         int instance = 0;
2796
2797         /* Assign an unused number */
2798         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2799                 return -1;
2800         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2801                 return -1;
2802         return instance;
2803 }
2804
2805 /**
2806  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2807  * @shost: pointer to SCSI host data structure.
2808  * @time: elapsed time of the scan in jiffies.
2809  *
2810  * This routine is called by the SCSI layer with a SCSI host to determine
2811  * whether the scan host is finished.
2812  *
2813  * Note: there is no scan_start function as adapter initialization will have
2814  * asynchronously kicked off the link initialization.
2815  *
2816  * Return codes
2817  *   0 - SCSI host scan is not over yet.
2818  *   1 - SCSI host scan is over.
2819  **/
2820 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2821 {
2822         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2823         struct lpfc_hba   *phba = vport->phba;
2824         int stat = 0;
2825
2826         spin_lock_irq(shost->host_lock);
2827
2828         if (vport->load_flag & FC_UNLOADING) {
2829                 stat = 1;
2830                 goto finished;
2831         }
2832         if (time >= 30 * HZ) {
2833                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2834                                 "0461 Scanning longer than 30 "
2835                                 "seconds.  Continuing initialization\n");
2836                 stat = 1;
2837                 goto finished;
2838         }
2839         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2840                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2841                                 "0465 Link down longer than 15 "
2842                                 "seconds.  Continuing initialization\n");
2843                 stat = 1;
2844                 goto finished;
2845         }
2846
2847         if (vport->port_state != LPFC_VPORT_READY)
2848                 goto finished;
2849         if (vport->num_disc_nodes || vport->fc_prli_sent)
2850                 goto finished;
2851         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2852                 goto finished;
2853         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2854                 goto finished;
2855
2856         stat = 1;
2857
2858 finished:
2859         spin_unlock_irq(shost->host_lock);
2860         return stat;
2861 }
2862
2863 /**
2864  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2865  * @shost: pointer to SCSI host data structure.
2866  *
2867  * This routine initializes a given SCSI host attributes on a FC port. The
2868  * SCSI host can be either on top of a physical port or a virtual port.
2869  **/
2870 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2871 {
2872         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2873         struct lpfc_hba   *phba = vport->phba;
2874         /*
2875          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2876          */
2877
2878         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2879         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2880         fc_host_supported_classes(shost) = FC_COS_CLASS3;
2881
2882         memset(fc_host_supported_fc4s(shost), 0,
2883                sizeof(fc_host_supported_fc4s(shost)));
2884         fc_host_supported_fc4s(shost)[2] = 1;
2885         fc_host_supported_fc4s(shost)[7] = 1;
2886
2887         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2888                                  sizeof fc_host_symbolic_name(shost));
2889
2890         fc_host_supported_speeds(shost) = 0;
2891         if (phba->lmt & LMT_10Gb)
2892                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2893         if (phba->lmt & LMT_8Gb)
2894                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2895         if (phba->lmt & LMT_4Gb)
2896                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2897         if (phba->lmt & LMT_2Gb)
2898                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2899         if (phba->lmt & LMT_1Gb)
2900                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2901
2902         fc_host_maxframe_size(shost) =
2903                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2904                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2905
2906         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2907
2908         /* This value is also unchanging */
2909         memset(fc_host_active_fc4s(shost), 0,
2910                sizeof(fc_host_active_fc4s(shost)));
2911         fc_host_active_fc4s(shost)[2] = 1;
2912         fc_host_active_fc4s(shost)[7] = 1;
2913
2914         fc_host_max_npiv_vports(shost) = phba->max_vpi;
2915         spin_lock_irq(shost->host_lock);
2916         vport->load_flag &= ~FC_LOADING;
2917         spin_unlock_irq(shost->host_lock);
2918 }
2919
2920 /**
2921  * lpfc_stop_port_s3 - Stop SLI3 device port
2922  * @phba: pointer to lpfc hba data structure.
2923  *
2924  * This routine is invoked to stop an SLI3 device port, it stops the device
2925  * from generating interrupts and stops the device driver's timers for the
2926  * device.
2927  **/
2928 static void
2929 lpfc_stop_port_s3(struct lpfc_hba *phba)
2930 {
2931         /* Clear all interrupt enable conditions */
2932         writel(0, phba->HCregaddr);
2933         readl(phba->HCregaddr); /* flush */
2934         /* Clear all pending interrupts */
2935         writel(0xffffffff, phba->HAregaddr);
2936         readl(phba->HAregaddr); /* flush */
2937
2938         /* Reset some HBA SLI setup states */
2939         lpfc_stop_hba_timers(phba);
2940         phba->pport->work_port_events = 0;
2941 }
2942
2943 /**
2944  * lpfc_stop_port_s4 - Stop SLI4 device port
2945  * @phba: pointer to lpfc hba data structure.
2946  *
2947  * This routine is invoked to stop an SLI4 device port, it stops the device
2948  * from generating interrupts and stops the device driver's timers for the
2949  * device.
2950  **/
2951 static void
2952 lpfc_stop_port_s4(struct lpfc_hba *phba)
2953 {
2954         /* Reset some HBA SLI4 setup states */
2955         lpfc_stop_hba_timers(phba);
2956         phba->pport->work_port_events = 0;
2957         phba->sli4_hba.intr_enable = 0;
2958 }
2959
2960 /**
2961  * lpfc_stop_port - Wrapper function for stopping hba port
2962  * @phba: Pointer to HBA context object.
2963  *
2964  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2965  * the API jump table function pointer from the lpfc_hba struct.
2966  **/
2967 void
2968 lpfc_stop_port(struct lpfc_hba *phba)
2969 {
2970         phba->lpfc_stop_port(phba);
2971 }
2972
2973 /**
2974  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2975  * @phba: Pointer to hba for which this call is being executed.
2976  *
2977  * This routine starts the timer waiting for the FCF rediscovery to complete.
2978  **/
2979 void
2980 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
2981 {
2982         unsigned long fcf_redisc_wait_tmo =
2983                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
2984         /* Start fcf rediscovery wait period timer */
2985         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
2986         spin_lock_irq(&phba->hbalock);
2987         /* Allow action to new fcf asynchronous event */
2988         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2989         /* Mark the FCF rediscovery pending state */
2990         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
2991         spin_unlock_irq(&phba->hbalock);
2992 }
2993
2994 /**
2995  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2996  * @ptr: Map to lpfc_hba data structure pointer.
2997  *
2998  * This routine is invoked when waiting for FCF table rediscover has been
2999  * timed out. If new FCF record(s) has (have) been discovered during the
3000  * wait period, a new FCF event shall be added to the FCOE async event
3001  * list, and then worker thread shall be waked up for processing from the
3002  * worker thread context.
3003  **/
3004 void
3005 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3006 {
3007         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3008
3009         /* Don't send FCF rediscovery event if timer cancelled */
3010         spin_lock_irq(&phba->hbalock);
3011         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3012                 spin_unlock_irq(&phba->hbalock);
3013                 return;
3014         }
3015         /* Clear FCF rediscovery timer pending flag */
3016         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3017         /* FCF rediscovery event to worker thread */
3018         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3019         spin_unlock_irq(&phba->hbalock);
3020         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3021                         "2776 FCF rediscover quiescent timer expired\n");
3022         /* wake up worker thread */
3023         lpfc_worker_wake_up(phba);
3024 }
3025
3026 /**
3027  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3028  * @phba: pointer to lpfc hba data structure.
3029  * @acqe_link: pointer to the async link completion queue entry.
3030  *
3031  * This routine is to parse the SLI4 link-attention link fault code and
3032  * translate it into the base driver's read link attention mailbox command
3033  * status.
3034  *
3035  * Return: Link-attention status in terms of base driver's coding.
3036  **/
3037 static uint16_t
3038 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3039                            struct lpfc_acqe_link *acqe_link)
3040 {
3041         uint16_t latt_fault;
3042
3043         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3044         case LPFC_ASYNC_LINK_FAULT_NONE:
3045         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3046         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3047                 latt_fault = 0;
3048                 break;
3049         default:
3050                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3051                                 "0398 Invalid link fault code: x%x\n",
3052                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3053                 latt_fault = MBXERR_ERROR;
3054                 break;
3055         }
3056         return latt_fault;
3057 }
3058
3059 /**
3060  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3061  * @phba: pointer to lpfc hba data structure.
3062  * @acqe_link: pointer to the async link completion queue entry.
3063  *
3064  * This routine is to parse the SLI4 link attention type and translate it
3065  * into the base driver's link attention type coding.
3066  *
3067  * Return: Link attention type in terms of base driver's coding.
3068  **/
3069 static uint8_t
3070 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3071                           struct lpfc_acqe_link *acqe_link)
3072 {
3073         uint8_t att_type;
3074
3075         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3076         case LPFC_ASYNC_LINK_STATUS_DOWN:
3077         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3078                 att_type = LPFC_ATT_LINK_DOWN;
3079                 break;
3080         case LPFC_ASYNC_LINK_STATUS_UP:
3081                 /* Ignore physical link up events - wait for logical link up */
3082                 att_type = LPFC_ATT_RESERVED;
3083                 break;
3084         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3085                 att_type = LPFC_ATT_LINK_UP;
3086                 break;
3087         default:
3088                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3089                                 "0399 Invalid link attention type: x%x\n",
3090                                 bf_get(lpfc_acqe_link_status, acqe_link));
3091                 att_type = LPFC_ATT_RESERVED;
3092                 break;
3093         }
3094         return att_type;
3095 }
3096
3097 /**
3098  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3099  * @phba: pointer to lpfc hba data structure.
3100  * @acqe_link: pointer to the async link completion queue entry.
3101  *
3102  * This routine is to parse the SLI4 link-attention link speed and translate
3103  * it into the base driver's link-attention link speed coding.
3104  *
3105  * Return: Link-attention link speed in terms of base driver's coding.
3106  **/
3107 static uint8_t
3108 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3109                                 struct lpfc_acqe_link *acqe_link)
3110 {
3111         uint8_t link_speed;
3112
3113         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3114         case LPFC_ASYNC_LINK_SPEED_ZERO:
3115         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3116         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3117                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3118                 break;
3119         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3120                 link_speed = LPFC_LINK_SPEED_1GHZ;
3121                 break;
3122         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3123                 link_speed = LPFC_LINK_SPEED_10GHZ;
3124                 break;
3125         default:
3126                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3127                                 "0483 Invalid link-attention link speed: x%x\n",
3128                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3129                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3130                 break;
3131         }
3132         return link_speed;
3133 }
3134
3135 /**
3136  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3137  * @phba: pointer to lpfc hba data structure.
3138  * @acqe_link: pointer to the async link completion queue entry.
3139  *
3140  * This routine is to handle the SLI4 asynchronous FCoE link event.
3141  **/
3142 static void
3143 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3144                          struct lpfc_acqe_link *acqe_link)
3145 {
3146         struct lpfc_dmabuf *mp;
3147         LPFC_MBOXQ_t *pmb;
3148         MAILBOX_t *mb;
3149         struct lpfc_mbx_read_top *la;
3150         uint8_t att_type;
3151         int rc;
3152
3153         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3154         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3155                 return;
3156         phba->fcoe_eventtag = acqe_link->event_tag;
3157         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3158         if (!pmb) {
3159                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3160                                 "0395 The mboxq allocation failed\n");
3161                 return;
3162         }
3163         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3164         if (!mp) {
3165                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3166                                 "0396 The lpfc_dmabuf allocation failed\n");
3167                 goto out_free_pmb;
3168         }
3169         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3170         if (!mp->virt) {
3171                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3172                                 "0397 The mbuf allocation failed\n");
3173                 goto out_free_dmabuf;
3174         }
3175
3176         /* Cleanup any outstanding ELS commands */
3177         lpfc_els_flush_all_cmd(phba);
3178
3179         /* Block ELS IOCBs until we have done process link event */
3180         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3181
3182         /* Update link event statistics */
3183         phba->sli.slistat.link_event++;
3184
3185         /* Create lpfc_handle_latt mailbox command from link ACQE */
3186         lpfc_read_topology(phba, pmb, mp);
3187         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3188         pmb->vport = phba->pport;
3189
3190         /* Keep the link status for extra SLI4 state machine reference */
3191         phba->sli4_hba.link_state.speed =
3192                                 bf_get(lpfc_acqe_link_speed, acqe_link);
3193         phba->sli4_hba.link_state.duplex =
3194                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3195         phba->sli4_hba.link_state.status =
3196                                 bf_get(lpfc_acqe_link_status, acqe_link);
3197         phba->sli4_hba.link_state.type =
3198                                 bf_get(lpfc_acqe_link_type, acqe_link);
3199         phba->sli4_hba.link_state.number =
3200                                 bf_get(lpfc_acqe_link_number, acqe_link);
3201         phba->sli4_hba.link_state.fault =
3202                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3203         phba->sli4_hba.link_state.logical_speed =
3204                         bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3205         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3206                         "2900 Async FCoE Link event - Speed:%dGBit duplex:x%x "
3207                         "LA Type:x%x Port Type:%d Port Number:%d Logical "
3208                         "speed:%dMbps Fault:%d\n",
3209                         phba->sli4_hba.link_state.speed,
3210                         phba->sli4_hba.link_state.topology,
3211                         phba->sli4_hba.link_state.status,
3212                         phba->sli4_hba.link_state.type,
3213                         phba->sli4_hba.link_state.number,
3214                         phba->sli4_hba.link_state.logical_speed * 10,
3215                         phba->sli4_hba.link_state.fault);
3216         /*
3217          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3218          * topology info. Note: Optional for non FC-AL ports.
3219          */
3220         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3221                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3222                 if (rc == MBX_NOT_FINISHED)
3223                         goto out_free_dmabuf;
3224                 return;
3225         }
3226         /*
3227          * For FCoE Mode: fill in all the topology information we need and call
3228          * the READ_TOPOLOGY completion routine to continue without actually
3229          * sending the READ_TOPOLOGY mailbox command to the port.
3230          */
3231         /* Parse and translate status field */
3232         mb = &pmb->u.mb;
3233         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3234
3235         /* Parse and translate link attention fields */
3236         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3237         la->eventTag = acqe_link->event_tag;
3238         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3239         bf_set(lpfc_mbx_read_top_link_spd, la,
3240                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3241
3242         /* Fake the the following irrelvant fields */
3243         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3244         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3245         bf_set(lpfc_mbx_read_top_il, la, 0);
3246         bf_set(lpfc_mbx_read_top_pb, la, 0);
3247         bf_set(lpfc_mbx_read_top_fa, la, 0);
3248         bf_set(lpfc_mbx_read_top_mm, la, 0);
3249
3250         /* Invoke the lpfc_handle_latt mailbox command callback function */
3251         lpfc_mbx_cmpl_read_topology(phba, pmb);
3252
3253         return;
3254
3255 out_free_dmabuf:
3256         kfree(mp);
3257 out_free_pmb:
3258         mempool_free(pmb, phba->mbox_mem_pool);
3259 }
3260
3261 /**
3262  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3263  * @phba: pointer to lpfc hba data structure.
3264  * @acqe_fc: pointer to the async fc completion queue entry.
3265  *
3266  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3267  * that the event was received and then issue a read_topology mailbox command so
3268  * that the rest of the driver will treat it the same as SLI3.
3269  **/
3270 static void
3271 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3272 {
3273         struct lpfc_dmabuf *mp;
3274         LPFC_MBOXQ_t *pmb;
3275         int rc;
3276
3277         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3278             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3279                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3280                                 "2895 Non FC link Event detected.(%d)\n",
3281                                 bf_get(lpfc_trailer_type, acqe_fc));
3282                 return;
3283         }
3284         /* Keep the link status for extra SLI4 state machine reference */
3285         phba->sli4_hba.link_state.speed =
3286                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3287         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3288         phba->sli4_hba.link_state.topology =
3289                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3290         phba->sli4_hba.link_state.status =
3291                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3292         phba->sli4_hba.link_state.type =
3293                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3294         phba->sli4_hba.link_state.number =
3295                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3296         phba->sli4_hba.link_state.fault =
3297                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3298         phba->sli4_hba.link_state.logical_speed =
3299                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3300         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3301                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3302                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3303                         "%dMbps Fault:%d\n",
3304                         phba->sli4_hba.link_state.speed,
3305                         phba->sli4_hba.link_state.topology,
3306                         phba->sli4_hba.link_state.status,
3307                         phba->sli4_hba.link_state.type,
3308                         phba->sli4_hba.link_state.number,
3309                         phba->sli4_hba.link_state.logical_speed * 10,
3310                         phba->sli4_hba.link_state.fault);
3311         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3312         if (!pmb) {
3313                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3314                                 "2897 The mboxq allocation failed\n");
3315                 return;
3316         }
3317         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3318         if (!mp) {
3319                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3320                                 "2898 The lpfc_dmabuf allocation failed\n");
3321                 goto out_free_pmb;
3322         }
3323         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3324         if (!mp->virt) {
3325                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3326                                 "2899 The mbuf allocation failed\n");
3327                 goto out_free_dmabuf;
3328         }
3329
3330         /* Cleanup any outstanding ELS commands */
3331         lpfc_els_flush_all_cmd(phba);
3332
3333         /* Block ELS IOCBs until we have done process link event */
3334         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3335
3336         /* Update link event statistics */
3337         phba->sli.slistat.link_event++;
3338
3339         /* Create lpfc_handle_latt mailbox command from link ACQE */
3340         lpfc_read_topology(phba, pmb, mp);
3341         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3342         pmb->vport = phba->pport;
3343
3344         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3345         if (rc == MBX_NOT_FINISHED)
3346                 goto out_free_dmabuf;
3347         return;
3348
3349 out_free_dmabuf:
3350         kfree(mp);
3351 out_free_pmb:
3352         mempool_free(pmb, phba->mbox_mem_pool);
3353 }
3354
3355 /**
3356  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3357  * @phba: pointer to lpfc hba data structure.
3358  * @acqe_fc: pointer to the async SLI completion queue entry.
3359  *
3360  * This routine is to handle the SLI4 asynchronous SLI events.
3361  **/
3362 static void
3363 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3364 {
3365         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3366                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3367                         "x%08x SLI Event Type:%d",
3368                         acqe_sli->event_data1, acqe_sli->event_data2,
3369                         bf_get(lpfc_trailer_type, acqe_sli));
3370         return;
3371 }
3372
3373 /**
3374  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3375  * @vport: pointer to vport data structure.
3376  *
3377  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3378  * response to a CVL event.
3379  *
3380  * Return the pointer to the ndlp with the vport if successful, otherwise
3381  * return NULL.
3382  **/
3383 static struct lpfc_nodelist *
3384 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3385 {
3386         struct lpfc_nodelist *ndlp;
3387         struct Scsi_Host *shost;
3388         struct lpfc_hba *phba;
3389
3390         if (!vport)
3391                 return NULL;
3392         phba = vport->phba;
3393         if (!phba)
3394                 return NULL;
3395         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3396         if (!ndlp) {
3397                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3398                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3399                 if (!ndlp)
3400                         return 0;
3401                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3402                 /* Set the node type */
3403                 ndlp->nlp_type |= NLP_FABRIC;
3404                 /* Put ndlp onto node list */
3405                 lpfc_enqueue_node(vport, ndlp);
3406         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3407                 /* re-setup ndlp without removing from node list */
3408                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3409                 if (!ndlp)
3410                         return 0;
3411         }
3412         if ((phba->pport->port_state < LPFC_FLOGI) &&
3413                 (phba->pport->port_state != LPFC_VPORT_FAILED))
3414                 return NULL;
3415         /* If virtual link is not yet instantiated ignore CVL */
3416         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3417                 && (vport->port_state != LPFC_VPORT_FAILED))
3418                 return NULL;
3419         shost = lpfc_shost_from_vport(vport);
3420         if (!shost)
3421                 return NULL;
3422         lpfc_linkdown_port(vport);
3423         lpfc_cleanup_pending_mbox(vport);
3424         spin_lock_irq(shost->host_lock);
3425         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3426         spin_unlock_irq(shost->host_lock);
3427
3428         return ndlp;
3429 }
3430
3431 /**
3432  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3433  * @vport: pointer to lpfc hba data structure.
3434  *
3435  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3436  * response to a FCF dead event.
3437  **/
3438 static void
3439 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3440 {
3441         struct lpfc_vport **vports;
3442         int i;
3443
3444         vports = lpfc_create_vport_work_array(phba);
3445         if (vports)
3446                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3447                         lpfc_sli4_perform_vport_cvl(vports[i]);
3448         lpfc_destroy_vport_work_array(phba, vports);
3449 }
3450
3451 /**
3452  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3453  * @phba: pointer to lpfc hba data structure.
3454  * @acqe_link: pointer to the async fcoe completion queue entry.
3455  *
3456  * This routine is to handle the SLI4 asynchronous fcoe event.
3457  **/
3458 static void
3459 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
3460                         struct lpfc_acqe_fip *acqe_fip)
3461 {
3462         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
3463         int rc;
3464         struct lpfc_vport *vport;
3465         struct lpfc_nodelist *ndlp;
3466         struct Scsi_Host  *shost;
3467         int active_vlink_present;
3468         struct lpfc_vport **vports;
3469         int i;
3470
3471         phba->fc_eventTag = acqe_fip->event_tag;
3472         phba->fcoe_eventtag = acqe_fip->event_tag;
3473         switch (event_type) {
3474         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3475         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3476                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
3477                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3478                                         LOG_DISCOVERY,
3479                                         "2546 New FCF event, evt_tag:x%x, "
3480                                         "index:x%x\n",
3481                                         acqe_fip->event_tag,
3482                                         acqe_fip->index);
3483                 else
3484                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3485                                         LOG_DISCOVERY,
3486                                         "2788 FCF param modified event, "
3487                                         "evt_tag:x%x, index:x%x\n",
3488                                         acqe_fip->event_tag,
3489                                         acqe_fip->index);
3490                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3491                         /*
3492                          * During period of FCF discovery, read the FCF
3493                          * table record indexed by the event to update
3494                          * FCF roundrobin failover eligible FCF bmask.
3495                          */
3496                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3497                                         LOG_DISCOVERY,
3498                                         "2779 Read FCF (x%x) for updating "
3499                                         "roundrobin FCF failover bmask\n",
3500                                         acqe_fip->index);
3501                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
3502                 }
3503
3504                 /* If the FCF discovery is in progress, do nothing. */
3505                 spin_lock_irq(&phba->hbalock);
3506                 if (phba->hba_flag & FCF_TS_INPROG) {
3507                         spin_unlock_irq(&phba->hbalock);
3508                         break;
3509                 }
3510                 /* If fast FCF failover rescan event is pending, do nothing */
3511                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3512                         spin_unlock_irq(&phba->hbalock);
3513                         break;
3514                 }
3515
3516                 /* If the FCF has been in discovered state, do nothing. */
3517                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3518                         spin_unlock_irq(&phba->hbalock);
3519                         break;
3520                 }
3521                 spin_unlock_irq(&phba->hbalock);
3522
3523                 /* Otherwise, scan the entire FCF table and re-discover SAN */
3524                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3525                                 "2770 Start FCF table scan per async FCF "
3526                                 "event, evt_tag:x%x, index:x%x\n",
3527                                 acqe_fip->event_tag, acqe_fip->index);
3528                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3529                                                      LPFC_FCOE_FCF_GET_FIRST);
3530                 if (rc)
3531                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3532                                         "2547 Issue FCF scan read FCF mailbox "
3533                                         "command failed (x%x)\n", rc);
3534                 break;
3535
3536         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
3537                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3538                         "2548 FCF Table full count 0x%x tag 0x%x\n",
3539                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3540                         acqe_fip->event_tag);
3541                 break;
3542
3543         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
3544                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3545                         "2549 FCF (x%x) disconnected from network, "
3546                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
3547                 /*
3548                  * If we are in the middle of FCF failover process, clear
3549                  * the corresponding FCF bit in the roundrobin bitmap.
3550                  */
3551                 spin_lock_irq(&phba->hbalock);
3552                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3553                         spin_unlock_irq(&phba->hbalock);
3554                         /* Update FLOGI FCF failover eligible FCF bmask */
3555                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
3556                         break;
3557                 }
3558                 spin_unlock_irq(&phba->hbalock);
3559
3560                 /* If the event is not for currently used fcf do nothing */
3561                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
3562                         break;
3563
3564                 /*
3565                  * Otherwise, request the port to rediscover the entire FCF
3566                  * table for a fast recovery from case that the current FCF
3567                  * is no longer valid as we are not in the middle of FCF
3568                  * failover process already.
3569                  */
3570                 spin_lock_irq(&phba->hbalock);
3571                 /* Mark the fast failover process in progress */
3572                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3573                 spin_unlock_irq(&phba->hbalock);
3574
3575                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3576                                 "2771 Start FCF fast failover process due to "
3577                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3578                                 "\n", acqe_fip->event_tag, acqe_fip->index);
3579                 rc = lpfc_sli4_redisc_fcf_table(phba);
3580                 if (rc) {
3581                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3582                                         LOG_DISCOVERY,
3583                                         "2772 Issue FCF rediscover mabilbox "
3584                                         "command failed, fail through to FCF "
3585                                         "dead event\n");
3586                         spin_lock_irq(&phba->hbalock);
3587                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3588                         spin_unlock_irq(&phba->hbalock);
3589                         /*
3590                          * Last resort will fail over by treating this
3591                          * as a link down to FCF registration.
3592                          */
3593                         lpfc_sli4_fcf_dead_failthrough(phba);
3594                 } else {
3595                         /* Reset FCF roundrobin bmask for new discovery */
3596                         memset(phba->fcf.fcf_rr_bmask, 0,
3597                                sizeof(*phba->fcf.fcf_rr_bmask));
3598                         /*
3599                          * Handling fast FCF failover to a DEAD FCF event is
3600                          * considered equalivant to receiving CVL to all vports.
3601                          */
3602                         lpfc_sli4_perform_all_vport_cvl(phba);
3603                 }
3604                 break;
3605         case LPFC_FIP_EVENT_TYPE_CVL:
3606                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3607                         "2718 Clear Virtual Link Received for VPI 0x%x"
3608                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
3609                 vport = lpfc_find_vport_by_vpid(phba,
3610                                 acqe_fip->index - phba->vpi_base);
3611                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3612                 if (!ndlp)
3613                         break;
3614                 active_vlink_present = 0;
3615
3616                 vports = lpfc_create_vport_work_array(phba);
3617                 if (vports) {
3618                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3619                                         i++) {
3620                                 if ((!(vports[i]->fc_flag &
3621                                         FC_VPORT_CVL_RCVD)) &&
3622                                         (vports[i]->port_state > LPFC_FDISC)) {
3623                                         active_vlink_present = 1;
3624                                         break;
3625                                 }
3626                         }
3627                         lpfc_destroy_vport_work_array(phba, vports);
3628                 }
3629
3630                 if (active_vlink_present) {
3631                         /*
3632                          * If there are other active VLinks present,
3633                          * re-instantiate the Vlink using FDISC.
3634                          */
3635                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3636                         shost = lpfc_shost_from_vport(vport);
3637                         spin_lock_irq(shost->host_lock);
3638                         ndlp->nlp_flag |= NLP_DELAY_TMO;
3639                         spin_unlock_irq(shost->host_lock);
3640                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3641                         vport->port_state = LPFC_FDISC;
3642                 } else {
3643                         /*
3644                          * Otherwise, we request port to rediscover
3645                          * the entire FCF table for a fast recovery
3646                          * from possible case that the current FCF
3647                          * is no longer valid if we are not already
3648                          * in the FCF failover process.
3649                          */
3650                         spin_lock_irq(&phba->hbalock);
3651                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3652                                 spin_unlock_irq(&phba->hbalock);
3653                                 break;
3654                         }
3655                         /* Mark the fast failover process in progress */
3656                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3657                         spin_unlock_irq(&phba->hbalock);
3658                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3659                                         LOG_DISCOVERY,
3660                                         "2773 Start FCF failover per CVL, "
3661                                         "evt_tag:x%x\n", acqe_fip->event_tag);
3662                         rc = lpfc_sli4_redisc_fcf_table(phba);
3663                         if (rc) {
3664                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3665                                                 LOG_DISCOVERY,
3666                                                 "2774 Issue FCF rediscover "
3667                                                 "mabilbox command failed, "
3668                                                 "through to CVL event\n");
3669                                 spin_lock_irq(&phba->hbalock);
3670                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3671                                 spin_unlock_irq(&phba->hbalock);
3672                                 /*
3673                                  * Last resort will be re-try on the
3674                                  * the current registered FCF entry.
3675                                  */
3676                                 lpfc_retry_pport_discovery(phba);
3677                         } else
3678                                 /*
3679                                  * Reset FCF roundrobin bmask for new
3680                                  * discovery.
3681                                  */
3682                                 memset(phba->fcf.fcf_rr_bmask, 0,
3683                                        sizeof(*phba->fcf.fcf_rr_bmask));
3684                 }
3685                 break;
3686         default:
3687                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3688                         "0288 Unknown FCoE event type 0x%x event tag "
3689                         "0x%x\n", event_type, acqe_fip->event_tag);
3690                 break;
3691         }
3692 }
3693
3694 /**
3695  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3696  * @phba: pointer to lpfc hba data structure.
3697  * @acqe_link: pointer to the async dcbx completion queue entry.
3698  *
3699  * This routine is to handle the SLI4 asynchronous dcbx event.
3700  **/
3701 static void
3702 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3703                          struct lpfc_acqe_dcbx *acqe_dcbx)
3704 {
3705         phba->fc_eventTag = acqe_dcbx->event_tag;
3706         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3707                         "0290 The SLI4 DCBX asynchronous event is not "
3708                         "handled yet\n");
3709 }
3710
3711 /**
3712  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3713  * @phba: pointer to lpfc hba data structure.
3714  * @acqe_link: pointer to the async grp5 completion queue entry.
3715  *
3716  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3717  * is an asynchronous notified of a logical link speed change.  The Port
3718  * reports the logical link speed in units of 10Mbps.
3719  **/
3720 static void
3721 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3722                          struct lpfc_acqe_grp5 *acqe_grp5)
3723 {
3724         uint16_t prev_ll_spd;
3725
3726         phba->fc_eventTag = acqe_grp5->event_tag;
3727         phba->fcoe_eventtag = acqe_grp5->event_tag;
3728         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3729         phba->sli4_hba.link_state.logical_speed =
3730                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3731         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3732                         "2789 GRP5 Async Event: Updating logical link speed "
3733                         "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3734                         (phba->sli4_hba.link_state.logical_speed*10));
3735 }
3736
3737 /**
3738  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3739  * @phba: pointer to lpfc hba data structure.
3740  *
3741  * This routine is invoked by the worker thread to process all the pending
3742  * SLI4 asynchronous events.
3743  **/
3744 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3745 {
3746         struct lpfc_cq_event *cq_event;
3747
3748         /* First, declare the async event has been handled */
3749         spin_lock_irq(&phba->hbalock);
3750         phba->hba_flag &= ~ASYNC_EVENT;
3751         spin_unlock_irq(&phba->hbalock);
3752         /* Now, handle all the async events */
3753         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3754                 /* Get the first event from the head of the event queue */
3755                 spin_lock_irq(&phba->hbalock);
3756                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3757                                  cq_event, struct lpfc_cq_event, list);
3758                 spin_unlock_irq(&phba->hbalock);
3759                 /* Process the asynchronous event */
3760                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3761                 case LPFC_TRAILER_CODE_LINK:
3762                         lpfc_sli4_async_link_evt(phba,
3763                                                  &cq_event->cqe.acqe_link);
3764                         break;
3765                 case LPFC_TRAILER_CODE_FCOE:
3766                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
3767                         break;
3768                 case LPFC_TRAILER_CODE_DCBX:
3769                         lpfc_sli4_async_dcbx_evt(phba,
3770                                                  &cq_event->cqe.acqe_dcbx);
3771                         break;
3772                 case LPFC_TRAILER_CODE_GRP5:
3773                         lpfc_sli4_async_grp5_evt(phba,
3774                                                  &cq_event->cqe.acqe_grp5);
3775                         break;
3776                 case LPFC_TRAILER_CODE_FC:
3777                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3778                         break;
3779                 case LPFC_TRAILER_CODE_SLI:
3780                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3781                         break;
3782                 default:
3783                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3784                                         "1804 Invalid asynchrous event code: "
3785                                         "x%x\n", bf_get(lpfc_trailer_code,
3786                                         &cq_event->cqe.mcqe_cmpl));
3787                         break;
3788                 }
3789                 /* Free the completion event processed to the free pool */
3790                 lpfc_sli4_cq_event_release(phba, cq_event);
3791         }
3792 }
3793
3794 /**
3795  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3796  * @phba: pointer to lpfc hba data structure.
3797  *
3798  * This routine is invoked by the worker thread to process FCF table
3799  * rediscovery pending completion event.
3800  **/
3801 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3802 {
3803         int rc;
3804
3805         spin_lock_irq(&phba->hbalock);
3806         /* Clear FCF rediscovery timeout event */
3807         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3808         /* Clear driver fast failover FCF record flag */
3809         phba->fcf.failover_rec.flag = 0;
3810         /* Set state for FCF fast failover */
3811         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3812         spin_unlock_irq(&phba->hbalock);
3813
3814         /* Scan FCF table from the first entry to re-discover SAN */
3815         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3816                         "2777 Start post-quiescent FCF table scan\n");
3817         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3818         if (rc)
3819                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3820                                 "2747 Issue FCF scan read FCF mailbox "
3821                                 "command failed 0x%x\n", rc);
3822 }
3823
3824 /**
3825  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3826  * @phba: pointer to lpfc hba data structure.
3827  * @dev_grp: The HBA PCI-Device group number.
3828  *
3829  * This routine is invoked to set up the per HBA PCI-Device group function
3830  * API jump table entries.
3831  *
3832  * Return: 0 if success, otherwise -ENODEV
3833  **/
3834 int
3835 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3836 {
3837         int rc;
3838
3839         /* Set up lpfc PCI-device group */
3840         phba->pci_dev_grp = dev_grp;
3841
3842         /* The LPFC_PCI_DEV_OC uses SLI4 */
3843         if (dev_grp == LPFC_PCI_DEV_OC)
3844                 phba->sli_rev = LPFC_SLI_REV4;
3845
3846         /* Set up device INIT API function jump table */
3847         rc = lpfc_init_api_table_setup(phba, dev_grp);
3848         if (rc)
3849                 return -ENODEV;
3850         /* Set up SCSI API function jump table */
3851         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3852         if (rc)
3853                 return -ENODEV;
3854         /* Set up SLI API function jump table */
3855         rc = lpfc_sli_api_table_setup(phba, dev_grp);
3856         if (rc)
3857                 return -ENODEV;
3858         /* Set up MBOX API function jump table */
3859         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3860         if (rc)
3861                 return -ENODEV;
3862
3863         return 0;
3864 }
3865
3866 /**
3867  * lpfc_log_intr_mode - Log the active interrupt mode
3868  * @phba: pointer to lpfc hba data structure.
3869  * @intr_mode: active interrupt mode adopted.
3870  *
3871  * This routine it invoked to log the currently used active interrupt mode
3872  * to the device.
3873  **/
3874 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3875 {
3876         switch (intr_mode) {
3877         case 0:
3878                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3879                                 "0470 Enable INTx interrupt mode.\n");
3880                 break;
3881         case 1:
3882                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3883                                 "0481 Enabled MSI interrupt mode.\n");
3884                 break;
3885         case 2:
3886                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3887                                 "0480 Enabled MSI-X interrupt mode.\n");
3888                 break;
3889         default:
3890                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3891                                 "0482 Illegal interrupt mode.\n");
3892                 break;
3893         }
3894         return;
3895 }
3896
3897 /**
3898  * lpfc_enable_pci_dev - Enable a generic PCI device.
3899  * @phba: pointer to lpfc hba data structure.
3900  *
3901  * This routine is invoked to enable the PCI device that is common to all
3902  * PCI devices.
3903  *
3904  * Return codes
3905  *      0 - successful
3906  *      other values - error
3907  **/
3908 static int
3909 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3910 {
3911         struct pci_dev *pdev;
3912         int bars;
3913
3914         /* Obtain PCI device reference */
3915         if (!phba->pcidev)
3916                 goto out_error;
3917         else
3918                 pdev = phba->pcidev;
3919         /* Select PCI BARs */
3920         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3921         /* Enable PCI device */
3922         if (pci_enable_device_mem(pdev))
3923                 goto out_error;
3924         /* Request PCI resource for the device */
3925         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3926                 goto out_disable_device;
3927         /* Set up device as PCI master and save state for EEH */
3928         pci_set_master(pdev);
3929         pci_try_set_mwi(pdev);
3930         pci_save_state(pdev);
3931
3932         return 0;
3933
3934 out_disable_device:
3935         pci_disable_device(pdev);
3936 out_error:
3937         return -ENODEV;
3938 }
3939
3940 /**
3941  * lpfc_disable_pci_dev - Disable a generic PCI device.
3942  * @phba: pointer to lpfc hba data structure.
3943  *
3944  * This routine is invoked to disable the PCI device that is common to all
3945  * PCI devices.
3946  **/
3947 static void
3948 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3949 {
3950         struct pci_dev *pdev;
3951         int bars;
3952
3953         /* Obtain PCI device reference */
3954         if (!phba->pcidev)
3955                 return;
3956         else
3957                 pdev = phba->pcidev;
3958         /* Select PCI BARs */
3959         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3960         /* Release PCI resource and disable PCI device */
3961         pci_release_selected_regions(pdev, bars);
3962         pci_disable_device(pdev);
3963         /* Null out PCI private reference to driver */
3964         pci_set_drvdata(pdev, NULL);
3965
3966         return;
3967 }
3968
3969 /**
3970  * lpfc_reset_hba - Reset a hba
3971  * @phba: pointer to lpfc hba data structure.
3972  *
3973  * This routine is invoked to reset a hba device. It brings the HBA
3974  * offline, performs a board restart, and then brings the board back
3975  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3976  * on outstanding mailbox commands.
3977  **/
3978 void
3979 lpfc_reset_hba(struct lpfc_hba *phba)
3980 {
3981         /* If resets are disabled then set error state and return. */
3982         if (!phba->cfg_enable_hba_reset) {
3983                 phba->link_state = LPFC_HBA_ERROR;
3984                 return;
3985         }
3986         lpfc_offline_prep(phba);
3987         lpfc_offline(phba);
3988         lpfc_sli_brdrestart(phba);
3989         lpfc_online(phba);
3990         lpfc_unblock_mgmt_io(phba);
3991 }
3992
3993 /**
3994  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3995  * @phba: pointer to lpfc hba data structure.
3996  *
3997  * This routine is invoked to set up the driver internal resources specific to
3998  * support the SLI-3 HBA device it attached to.
3999  *
4000  * Return codes
4001  *      0 - successful
4002  *      other values - error
4003  **/
4004 static int
4005 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4006 {
4007         struct lpfc_sli *psli;
4008
4009         /*
4010          * Initialize timers used by driver
4011          */
4012
4013         /* Heartbeat timer */
4014         init_timer(&phba->hb_tmofunc);
4015         phba->hb_tmofunc.function = lpfc_hb_timeout;
4016         phba->hb_tmofunc.data = (unsigned long)phba;
4017
4018         psli = &phba->sli;
4019         /* MBOX heartbeat timer */
4020         init_timer(&psli->mbox_tmo);
4021         psli->mbox_tmo.function = lpfc_mbox_timeout;
4022         psli->mbox_tmo.data = (unsigned long) phba;
4023         /* FCP polling mode timer */
4024         init_timer(&phba->fcp_poll_timer);
4025         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4026         phba->fcp_poll_timer.data = (unsigned long) phba;
4027         /* Fabric block timer */
4028         init_timer(&phba->fabric_block_timer);
4029         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4030         phba->fabric_block_timer.data = (unsigned long) phba;
4031         /* EA polling mode timer */
4032         init_timer(&phba->eratt_poll);
4033         phba->eratt_poll.function = lpfc_poll_eratt;
4034         phba->eratt_poll.data = (unsigned long) phba;
4035
4036         /* Host attention work mask setup */
4037         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4038         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4039
4040         /* Get all the module params for configuring this host */
4041         lpfc_get_cfgparam(phba);
4042         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4043                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4044                 /* check for menlo minimum sg count */
4045                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4046                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4047         }
4048
4049         /*
4050          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4051          * used to create the sg_dma_buf_pool must be dynamically calculated.
4052          * 2 segments are added since the IOCB needs a command and response bde.
4053          */
4054         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4055                 sizeof(struct fcp_rsp) +
4056                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4057
4058         if (phba->cfg_enable_bg) {
4059                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4060                 phba->cfg_sg_dma_buf_size +=
4061                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4062         }
4063
4064         /* Also reinitialize the host templates with new values. */
4065         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4066         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4067
4068         phba->max_vpi = LPFC_MAX_VPI;
4069         /* This will be set to correct value after config_port mbox */
4070         phba->max_vports = 0;
4071
4072         /*
4073          * Initialize the SLI Layer to run with lpfc HBAs.
4074          */
4075         lpfc_sli_setup(phba);
4076         lpfc_sli_queue_setup(phba);
4077
4078         /* Allocate device driver memory */
4079         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4080                 return -ENOMEM;
4081
4082         return 0;
4083 }
4084
4085 /**
4086  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4087  * @phba: pointer to lpfc hba data structure.
4088  *
4089  * This routine is invoked to unset the driver internal resources set up
4090  * specific for supporting the SLI-3 HBA device it attached to.
4091  **/
4092 static void
4093 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4094 {
4095         /* Free device driver memory allocated */
4096         lpfc_mem_free_all(phba);
4097
4098         return;
4099 }
4100
4101 /**
4102  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4103  * @phba: pointer to lpfc hba data structure.
4104  *
4105  * This routine is invoked to set up the driver internal resources specific to
4106  * support the SLI-4 HBA device it attached to.
4107  *
4108  * Return codes
4109  *      0 - successful
4110  *      other values - error
4111  **/
4112 static int
4113 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4114 {
4115         struct lpfc_sli *psli;
4116         LPFC_MBOXQ_t *mboxq;
4117         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4118         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4119         struct lpfc_mqe *mqe;
4120         int longs, sli_family;
4121
4122         /* Before proceed, wait for POST done and device ready */
4123         rc = lpfc_sli4_post_status_check(phba);
4124         if (rc)
4125                 return -ENODEV;
4126
4127         /*
4128          * Initialize timers used by driver
4129          */
4130
4131         /* Heartbeat timer */
4132         init_timer(&phba->hb_tmofunc);
4133         phba->hb_tmofunc.function = lpfc_hb_timeout;
4134         phba->hb_tmofunc.data = (unsigned long)phba;
4135         init_timer(&phba->rrq_tmr);
4136         phba->rrq_tmr.function = lpfc_rrq_timeout;
4137         phba->rrq_tmr.data = (unsigned long)phba;
4138
4139         psli = &phba->sli;
4140         /* MBOX heartbeat timer */
4141         init_timer(&psli->mbox_tmo);
4142         psli->mbox_tmo.function = lpfc_mbox_timeout;
4143         psli->mbox_tmo.data = (unsigned long) phba;
4144         /* Fabric block timer */
4145         init_timer(&phba->fabric_block_timer);
4146         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4147         phba->fabric_block_timer.data = (unsigned long) phba;
4148         /* EA polling mode timer */
4149         init_timer(&phba->eratt_poll);
4150         phba->eratt_poll.function = lpfc_poll_eratt;
4151         phba->eratt_poll.data = (unsigned long) phba;
4152         /* FCF rediscover timer */
4153         init_timer(&phba->fcf.redisc_wait);
4154         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4155         phba->fcf.redisc_wait.data = (unsigned long)phba;
4156
4157         /*
4158          * We need to do a READ_CONFIG mailbox command here before
4159          * calling lpfc_get_cfgparam. For VFs this will report the
4160          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4161          * All of the resources allocated
4162          * for this Port are tied to these values.
4163          */
4164         /* Get all the module params for configuring this host */
4165         lpfc_get_cfgparam(phba);
4166         phba->max_vpi = LPFC_MAX_VPI;
4167         /* This will be set to correct value after the read_config mbox */
4168         phba->max_vports = 0;
4169
4170         /* Program the default value of vlan_id and fc_map */
4171         phba->valid_vlan = 0;
4172         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4173         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4174         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4175
4176         /*
4177          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4178          * used to create the sg_dma_buf_pool must be dynamically calculated.
4179          * 2 segments are added since the IOCB needs a command and response bde.
4180          * To insure that the scsi sgl does not cross a 4k page boundary only
4181          * sgl sizes of must be a power of 2.
4182          */
4183         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4184                     ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4185
4186         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4187         max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4188         switch (sli_family) {
4189         case LPFC_SLI_INTF_FAMILY_BE2:
4190         case LPFC_SLI_INTF_FAMILY_BE3:
4191                 /* There is a single hint for BE - 2 pages per BPL. */
4192                 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4193                     LPFC_SLI_INTF_SLI_HINT1_1)
4194                         max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4195                 break;
4196         case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4197         case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4198         default:
4199                 break;
4200         }
4201         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4202              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4203              dma_buf_size = dma_buf_size << 1)
4204                 ;
4205         if (dma_buf_size == max_buf_size)
4206                 phba->cfg_sg_seg_cnt = (dma_buf_size -
4207                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4208                         (2 * sizeof(struct sli4_sge))) /
4209                                 sizeof(struct sli4_sge);
4210         phba->cfg_sg_dma_buf_size = dma_buf_size;
4211
4212         /* Initialize buffer queue management fields */
4213         hbq_count = lpfc_sli_hbq_count();
4214         for (i = 0; i < hbq_count; ++i)
4215                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4216         INIT_LIST_HEAD(&phba->rb_pend_list);
4217         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4218         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4219
4220         /*
4221          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4222          */
4223         /* Initialize the Abort scsi buffer list used by driver */
4224         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4225         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4226         /* This abort list used by worker thread */
4227         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4228
4229         /*
4230          * Initialize dirver internal slow-path work queues
4231          */
4232
4233         /* Driver internel slow-path CQ Event pool */
4234         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4235         /* Response IOCB work queue list */
4236         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4237         /* Asynchronous event CQ Event work queue list */
4238         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4239         /* Fast-path XRI aborted CQ Event work queue list */
4240         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4241         /* Slow-path XRI aborted CQ Event work queue list */
4242         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4243         /* Receive queue CQ Event work queue list */
4244         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4245
4246         /* Initialize the driver internal SLI layer lists. */
4247         lpfc_sli_setup(phba);
4248         lpfc_sli_queue_setup(phba);
4249
4250         /* Allocate device driver memory */
4251         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4252         if (rc)
4253                 return -ENOMEM;
4254
4255         /* IF Type 2 ports get initialized now. */
4256         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4257             LPFC_SLI_INTF_IF_TYPE_2) {
4258                 rc = lpfc_pci_function_reset(phba);
4259                 if (unlikely(rc))
4260                         return -ENODEV;
4261         }
4262
4263         /* Create the bootstrap mailbox command */
4264         rc = lpfc_create_bootstrap_mbox(phba);
4265         if (unlikely(rc))
4266                 goto out_free_mem;
4267
4268         /* Set up the host's endian order with the device. */
4269         rc = lpfc_setup_endian_order(phba);
4270         if (unlikely(rc))
4271                 goto out_free_bsmbx;
4272
4273         /* Set up the hba's configuration parameters. */
4274         rc = lpfc_sli4_read_config(phba);
4275         if (unlikely(rc))
4276                 goto out_free_bsmbx;
4277
4278         /* IF Type 0 ports get initialized now. */
4279         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4280             LPFC_SLI_INTF_IF_TYPE_0) {
4281                 rc = lpfc_pci_function_reset(phba);
4282                 if (unlikely(rc))
4283                         goto out_free_bsmbx;
4284         }
4285
4286         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4287                                                        GFP_KERNEL);
4288         if (!mboxq) {
4289                 rc = -ENOMEM;
4290                 goto out_free_bsmbx;
4291         }
4292
4293         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4294         lpfc_supported_pages(mboxq);
4295         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4296         if (!rc) {
4297                 mqe = &mboxq->u.mqe;
4298                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4299                        LPFC_MAX_SUPPORTED_PAGES);
4300                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4301                         switch (pn_page[i]) {
4302                         case LPFC_SLI4_PARAMETERS:
4303                                 phba->sli4_hba.pc_sli4_params.supported = 1;
4304                                 break;
4305                         default:
4306                                 break;
4307                         }
4308                 }
4309                 /* Read the port's SLI4 Parameters capabilities if supported. */
4310                 if (phba->sli4_hba.pc_sli4_params.supported)
4311                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
4312                 if (rc) {
4313                         mempool_free(mboxq, phba->mbox_mem_pool);
4314                         rc = -EIO;
4315                         goto out_free_bsmbx;
4316                 }
4317         }
4318         /*
4319          * Get sli4 parameters that override parameters from Port capabilities.
4320          * If this call fails it is not a critical error so continue loading.
4321          */
4322         lpfc_get_sli4_parameters(phba, mboxq);
4323         mempool_free(mboxq, phba->mbox_mem_pool);
4324         /* Create all the SLI4 queues */
4325         rc = lpfc_sli4_queue_create(phba);
4326         if (rc)
4327                 goto out_free_bsmbx;
4328
4329         /* Create driver internal CQE event pool */
4330         rc = lpfc_sli4_cq_event_pool_create(phba);
4331         if (rc)
4332                 goto out_destroy_queue;
4333
4334         /* Initialize and populate the iocb list per host */
4335         rc = lpfc_init_sgl_list(phba);
4336         if (rc) {
4337                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4338                                 "1400 Failed to initialize sgl list.\n");
4339                 goto out_destroy_cq_event_pool;
4340         }
4341         rc = lpfc_init_active_sgl_array(phba);
4342         if (rc) {
4343                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4344                                 "1430 Failed to initialize sgl list.\n");
4345                 goto out_free_sgl_list;
4346         }
4347
4348         rc = lpfc_sli4_init_rpi_hdrs(phba);
4349         if (rc) {
4350                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4351                                 "1432 Failed to initialize rpi headers.\n");
4352                 goto out_free_active_sgl;
4353         }
4354
4355         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4356         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4357         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4358                                          GFP_KERNEL);
4359         if (!phba->fcf.fcf_rr_bmask) {
4360                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4361                                 "2759 Failed allocate memory for FCF round "
4362                                 "robin failover bmask\n");
4363                 goto out_remove_rpi_hdrs;
4364         }
4365
4366         phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4367                                     phba->cfg_fcp_eq_count), GFP_KERNEL);
4368         if (!phba->sli4_hba.fcp_eq_hdl) {
4369                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4370                                 "2572 Failed allocate memory for fast-path "
4371                                 "per-EQ handle array\n");
4372                 goto out_free_fcf_rr_bmask;
4373         }
4374
4375         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4376                                       phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4377         if (!phba->sli4_hba.msix_entries) {
4378                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4379                                 "2573 Failed allocate memory for msi-x "
4380                                 "interrupt vector entries\n");
4381                 goto out_free_fcp_eq_hdl;
4382         }
4383
4384         return rc;
4385
4386 out_free_fcp_eq_hdl:
4387         kfree(phba->sli4_hba.fcp_eq_hdl);
4388 out_free_fcf_rr_bmask:
4389         kfree(phba->fcf.fcf_rr_bmask);
4390 out_remove_rpi_hdrs:
4391         lpfc_sli4_remove_rpi_hdrs(phba);
4392 out_free_active_sgl:
4393         lpfc_free_active_sgl(phba);
4394 out_free_sgl_list:
4395         lpfc_free_sgl_list(phba);
4396 out_destroy_cq_event_pool:
4397         lpfc_sli4_cq_event_pool_destroy(phba);
4398 out_destroy_queue:
4399         lpfc_sli4_queue_destroy(phba);
4400 out_free_bsmbx:
4401         lpfc_destroy_bootstrap_mbox(phba);
4402 out_free_mem:
4403         lpfc_mem_free(phba);
4404         return rc;
4405 }
4406
4407 /**
4408  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4409  * @phba: pointer to lpfc hba data structure.
4410  *
4411  * This routine is invoked to unset the driver internal resources set up
4412  * specific for supporting the SLI-4 HBA device it attached to.
4413  **/
4414 static void
4415 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4416 {
4417         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4418
4419         /* Free memory allocated for msi-x interrupt vector entries */
4420         kfree(phba->sli4_hba.msix_entries);
4421
4422         /* Free memory allocated for fast-path work queue handles */
4423         kfree(phba->sli4_hba.fcp_eq_hdl);
4424
4425         /* Free the allocated rpi headers. */
4426         lpfc_sli4_remove_rpi_hdrs(phba);
4427         lpfc_sli4_remove_rpis(phba);
4428
4429         /* Free eligible FCF index bmask */
4430         kfree(phba->fcf.fcf_rr_bmask);
4431
4432         /* Free the ELS sgl list */
4433         lpfc_free_active_sgl(phba);
4434         lpfc_free_sgl_list(phba);
4435
4436         /* Free the SCSI sgl management array */
4437         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4438
4439         /* Free the SLI4 queues */
4440         lpfc_sli4_queue_destroy(phba);
4441
4442         /* Free the completion queue EQ event pool */
4443         lpfc_sli4_cq_event_release_all(phba);
4444         lpfc_sli4_cq_event_pool_destroy(phba);
4445
4446         /* Free the bsmbx region. */
4447         lpfc_destroy_bootstrap_mbox(phba);
4448
4449         /* Free the SLI Layer memory with SLI4 HBAs */
4450         lpfc_mem_free_all(phba);
4451
4452         /* Free the current connect table */
4453         list_for_each_entry_safe(conn_entry, next_conn_entry,
4454                 &phba->fcf_conn_rec_list, list) {
4455                 list_del_init(&conn_entry->list);
4456                 kfree(conn_entry);
4457         }
4458
4459         return;
4460 }
4461
4462 /**
4463  * lpfc_init_api_table_setup - Set up init api fucntion jump table
4464  * @phba: The hba struct for which this call is being executed.
4465  * @dev_grp: The HBA PCI-Device group number.
4466  *
4467  * This routine sets up the device INIT interface API function jump table
4468  * in @phba struct.
4469  *
4470  * Returns: 0 - success, -ENODEV - failure.
4471  **/
4472 int
4473 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4474 {
4475         phba->lpfc_hba_init_link = lpfc_hba_init_link;
4476         phba->lpfc_hba_down_link = lpfc_hba_down_link;
4477         switch (dev_grp) {
4478         case LPFC_PCI_DEV_LP:
4479                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4480                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4481                 phba->lpfc_stop_port = lpfc_stop_port_s3;
4482                 break;
4483         case LPFC_PCI_DEV_OC:
4484                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4485                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4486                 phba->lpfc_stop_port = lpfc_stop_port_s4;
4487                 break;
4488         default:
4489                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4490                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
4491                                 dev_grp);
4492                 return -ENODEV;
4493                 break;
4494         }
4495         return 0;
4496 }
4497
4498 /**
4499  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4500  * @phba: pointer to lpfc hba data structure.
4501  *
4502  * This routine is invoked to set up the driver internal resources before the
4503  * device specific resource setup to support the HBA device it attached to.
4504  *
4505  * Return codes
4506  *      0 - successful
4507  *      other values - error
4508  **/
4509 static int
4510 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4511 {
4512         /*
4513          * Driver resources common to all SLI revisions
4514          */
4515         atomic_set(&phba->fast_event_count, 0);
4516         spin_lock_init(&phba->hbalock);
4517
4518         /* Initialize ndlp management spinlock */
4519         spin_lock_init(&phba->ndlp_lock);
4520
4521         INIT_LIST_HEAD(&phba->port_list);
4522         INIT_LIST_HEAD(&phba->work_list);
4523         init_waitqueue_head(&phba->wait_4_mlo_m_q);
4524
4525         /* Initialize the wait queue head for the kernel thread */
4526         init_waitqueue_head(&phba->work_waitq);
4527
4528         /* Initialize the scsi buffer list used by driver for scsi IO */
4529         spin_lock_init(&phba->scsi_buf_list_lock);
4530         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4531
4532         /* Initialize the fabric iocb list */
4533         INIT_LIST_HEAD(&phba->fabric_iocb_list);
4534
4535         /* Initialize list to save ELS buffers */
4536         INIT_LIST_HEAD(&phba->elsbuf);
4537
4538         /* Initialize FCF connection rec list */
4539         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4540
4541         return 0;
4542 }
4543
4544 /**
4545  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4546  * @phba: pointer to lpfc hba data structure.
4547  *
4548  * This routine is invoked to set up the driver internal resources after the
4549  * device specific resource setup to support the HBA device it attached to.
4550  *
4551  * Return codes
4552  *      0 - successful
4553  *      other values - error
4554  **/
4555 static int
4556 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4557 {
4558         int error;
4559
4560         /* Startup the kernel thread for this host adapter. */
4561         phba->worker_thread = kthread_run(lpfc_do_work, phba,
4562                                           "lpfc_worker_%d", phba->brd_no);
4563         if (IS_ERR(phba->worker_thread)) {
4564                 error = PTR_ERR(phba->worker_thread);
4565                 return error;
4566         }
4567
4568         return 0;
4569 }
4570
4571 /**
4572  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4573  * @phba: pointer to lpfc hba data structure.
4574  *
4575  * This routine is invoked to unset the driver internal resources set up after
4576  * the device specific resource setup for supporting the HBA device it
4577  * attached to.
4578  **/
4579 static void
4580 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4581 {
4582         /* Stop kernel worker thread */
4583         kthread_stop(phba->worker_thread);
4584 }
4585
4586 /**
4587  * lpfc_free_iocb_list - Free iocb list.
4588  * @phba: pointer to lpfc hba data structure.
4589  *
4590  * This routine is invoked to free the driver's IOCB list and memory.
4591  **/
4592 static void
4593 lpfc_free_iocb_list(struct lpfc_hba *phba)
4594 {
4595         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4596
4597         spin_lock_irq(&phba->hbalock);
4598         list_for_each_entry_safe(iocbq_entry, iocbq_next,
4599                                  &phba->lpfc_iocb_list, list) {
4600                 list_del(&iocbq_entry->list);
4601                 kfree(iocbq_entry);
4602                 phba->total_iocbq_bufs--;
4603         }
4604         spin_unlock_irq(&phba->hbalock);
4605
4606         return;
4607 }
4608
4609 /**
4610  * lpfc_init_iocb_list - Allocate and initialize iocb list.
4611  * @phba: pointer to lpfc hba data structure.
4612  *
4613  * This routine is invoked to allocate and initizlize the driver's IOCB
4614  * list and set up the IOCB tag array accordingly.
4615  *
4616  * Return codes
4617  *      0 - successful
4618  *      other values - error
4619  **/
4620 static int
4621 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4622 {
4623         struct lpfc_iocbq *iocbq_entry = NULL;
4624         uint16_t iotag;
4625         int i;
4626
4627         /* Initialize and populate the iocb list per host.  */
4628         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4629         for (i = 0; i < iocb_count; i++) {
4630                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4631                 if (iocbq_entry == NULL) {
4632                         printk(KERN_ERR "%s: only allocated %d iocbs of "
4633                                 "expected %d count. Unloading driver.\n",
4634                                 __func__, i, LPFC_IOCB_LIST_CNT);
4635                         goto out_free_iocbq;
4636                 }
4637
4638                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4639                 if (iotag == 0) {
4640                         kfree(iocbq_entry);
4641                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
4642                                 "Unloading driver.\n", __func__);
4643                         goto out_free_iocbq;
4644                 }
4645                 iocbq_entry->sli4_xritag = NO_XRI;
4646
4647                 spin_lock_irq(&phba->hbalock);
4648                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4649                 phba->total_iocbq_bufs++;
4650                 spin_unlock_irq(&phba->hbalock);
4651         }
4652
4653         return 0;
4654
4655 out_free_iocbq:
4656         lpfc_free_iocb_list(phba);
4657
4658         return -ENOMEM;
4659 }
4660
4661 /**
4662  * lpfc_free_sgl_list - Free sgl list.
4663  * @phba: pointer to lpfc hba data structure.
4664  *
4665  * This routine is invoked to free the driver's sgl list and memory.
4666  **/
4667 static void
4668 lpfc_free_sgl_list(struct lpfc_hba *phba)
4669 {
4670         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4671         LIST_HEAD(sglq_list);
4672
4673         spin_lock_irq(&phba->hbalock);
4674         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4675         spin_unlock_irq(&phba->hbalock);
4676
4677         list_for_each_entry_safe(sglq_entry, sglq_next,
4678                                  &sglq_list, list) {
4679                 list_del(&sglq_entry->list);
4680                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4681                 kfree(sglq_entry);
4682                 phba->sli4_hba.total_sglq_bufs--;
4683         }
4684         kfree(phba->sli4_hba.lpfc_els_sgl_array);
4685 }
4686
4687 /**
4688  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4689  * @phba: pointer to lpfc hba data structure.
4690  *
4691  * This routine is invoked to allocate the driver's active sgl memory.
4692  * This array will hold the sglq_entry's for active IOs.
4693  **/
4694 static int
4695 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4696 {
4697         int size;
4698         size = sizeof(struct lpfc_sglq *);
4699         size *= phba->sli4_hba.max_cfg_param.max_xri;
4700
4701         phba->sli4_hba.lpfc_sglq_active_list =
4702                 kzalloc(size, GFP_KERNEL);
4703         if (!phba->sli4_hba.lpfc_sglq_active_list)
4704                 return -ENOMEM;
4705         return 0;
4706 }
4707
4708 /**
4709  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4710  * @phba: pointer to lpfc hba data structure.
4711  *
4712  * This routine is invoked to walk through the array of active sglq entries
4713  * and free all of the resources.
4714  * This is just a place holder for now.
4715  **/
4716 static void
4717 lpfc_free_active_sgl(struct lpfc_hba *phba)
4718 {
4719         kfree(phba->sli4_hba.lpfc_sglq_active_list);
4720 }
4721
4722 /**
4723  * lpfc_init_sgl_list - Allocate and initialize sgl list.
4724  * @phba: pointer to lpfc hba data structure.
4725  *
4726  * This routine is invoked to allocate and initizlize the driver's sgl
4727  * list and set up the sgl xritag tag array accordingly.
4728  *
4729  * Return codes
4730  *      0 - successful
4731  *      other values - error
4732  **/
4733 static int
4734 lpfc_init_sgl_list(struct lpfc_hba *phba)
4735 {
4736         struct lpfc_sglq *sglq_entry = NULL;
4737         int i;
4738         int els_xri_cnt;
4739
4740         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4741         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4742                                 "2400 lpfc_init_sgl_list els %d.\n",
4743                                 els_xri_cnt);
4744         /* Initialize and populate the sglq list per host/VF. */
4745         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4746         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4747
4748         /* Sanity check on XRI management */
4749         if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4750                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4751                                 "2562 No room left for SCSI XRI allocation: "
4752                                 "max_xri=%d, els_xri=%d\n",
4753                                 phba->sli4_hba.max_cfg_param.max_xri,
4754                                 els_xri_cnt);
4755                 return -ENOMEM;
4756         }
4757
4758         /* Allocate memory for the ELS XRI management array */
4759         phba->sli4_hba.lpfc_els_sgl_array =
4760                         kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4761                         GFP_KERNEL);
4762
4763         if (!phba->sli4_hba.lpfc_els_sgl_array) {
4764                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4765                                 "2401 Failed to allocate memory for ELS "
4766                                 "XRI management array of size %d.\n",
4767                                 els_xri_cnt);
4768                 return -ENOMEM;
4769         }
4770
4771         /* Keep the SCSI XRI into the XRI management array */
4772         phba->sli4_hba.scsi_xri_max =
4773                         phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4774         phba->sli4_hba.scsi_xri_cnt = 0;
4775
4776         phba->sli4_hba.lpfc_scsi_psb_array =
4777                         kzalloc((sizeof(struct lpfc_scsi_buf *) *
4778                         phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4779
4780         if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4781                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4782                                 "2563 Failed to allocate memory for SCSI "
4783                                 "XRI management array of size %d.\n",
4784                                 phba->sli4_hba.scsi_xri_max);
4785                 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4786                 return -ENOMEM;
4787         }
4788
4789         for (i = 0; i < els_xri_cnt; i++) {
4790                 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4791                 if (sglq_entry == NULL) {
4792                         printk(KERN_ERR "%s: only allocated %d sgls of "
4793                                 "expected %d count. Unloading driver.\n",
4794                                 __func__, i, els_xri_cnt);
4795                         goto out_free_mem;
4796                 }
4797
4798                 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4799                 if (sglq_entry->sli4_xritag == NO_XRI) {
4800                         kfree(sglq_entry);
4801                         printk(KERN_ERR "%s: failed to allocate XRI.\n"
4802                                 "Unloading driver.\n", __func__);
4803                         goto out_free_mem;
4804                 }
4805                 sglq_entry->buff_type = GEN_BUFF_TYPE;
4806                 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4807                 if (sglq_entry->virt == NULL) {
4808                         kfree(sglq_entry);
4809                         printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4810                                 "Unloading driver.\n", __func__);
4811                         goto out_free_mem;
4812                 }
4813                 sglq_entry->sgl = sglq_entry->virt;
4814                 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4815
4816                 /* The list order is used by later block SGL registraton */
4817                 spin_lock_irq(&phba->hbalock);
4818                 sglq_entry->state = SGL_FREED;
4819                 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4820                 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4821                 phba->sli4_hba.total_sglq_bufs++;
4822                 spin_unlock_irq(&phba->hbalock);
4823         }
4824         return 0;
4825
4826 out_free_mem:
4827         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4828         lpfc_free_sgl_list(phba);
4829         return -ENOMEM;
4830 }
4831
4832 /**
4833  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4834  * @phba: pointer to lpfc hba data structure.
4835  *
4836  * This routine is invoked to post rpi header templates to the
4837  * HBA consistent with the SLI-4 interface spec.  This routine
4838  * posts a PAGE_SIZE memory region to the port to hold up to
4839  * PAGE_SIZE modulo 64 rpi context headers.
4840  * No locks are held here because this is an initialization routine
4841  * called only from probe or lpfc_online when interrupts are not
4842  * enabled and the driver is reinitializing the device.
4843  *
4844  * Return codes
4845  *      0 - successful
4846  *      -ENOMEM - No availble memory
4847  *      -EIO - The mailbox failed to complete successfully.
4848  **/
4849 int
4850 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4851 {
4852         int rc = 0;
4853         int longs;
4854         uint16_t rpi_count;
4855         struct lpfc_rpi_hdr *rpi_hdr;
4856
4857         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4858
4859         /*
4860          * Provision an rpi bitmask range for discovery. The total count
4861          * is the difference between max and base + 1.
4862          */
4863         rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4864                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4865
4866         longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4867         phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4868                                            GFP_KERNEL);
4869         if (!phba->sli4_hba.rpi_bmask)
4870                 return -ENOMEM;
4871
4872         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4873         if (!rpi_hdr) {
4874                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4875                                 "0391 Error during rpi post operation\n");
4876                 lpfc_sli4_remove_rpis(phba);
4877                 rc = -ENODEV;
4878         }
4879
4880         return rc;
4881 }
4882
4883 /**
4884  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4885  * @phba: pointer to lpfc hba data structure.
4886  *
4887  * This routine is invoked to allocate a single 4KB memory region to
4888  * support rpis and stores them in the phba.  This single region
4889  * provides support for up to 64 rpis.  The region is used globally
4890  * by the device.
4891  *
4892  * Returns:
4893  *   A valid rpi hdr on success.
4894  *   A NULL pointer on any failure.
4895  **/
4896 struct lpfc_rpi_hdr *
4897 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4898 {
4899         uint16_t rpi_limit, curr_rpi_range;
4900         struct lpfc_dmabuf *dmabuf;
4901         struct lpfc_rpi_hdr *rpi_hdr;
4902
4903         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4904                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4905
4906         spin_lock_irq(&phba->hbalock);
4907         curr_rpi_range = phba->sli4_hba.next_rpi;
4908         spin_unlock_irq(&phba->hbalock);
4909
4910         /*
4911          * The port has a limited number of rpis. The increment here
4912          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4913          * and to allow the full max_rpi range per port.
4914          */
4915         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4916                 return NULL;
4917
4918         /*
4919          * First allocate the protocol header region for the port.  The
4920          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4921          */
4922         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4923         if (!dmabuf)
4924                 return NULL;
4925
4926         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4927                                           LPFC_HDR_TEMPLATE_SIZE,
4928                                           &dmabuf->phys,
4929                                           GFP_KERNEL);
4930         if (!dmabuf->virt) {
4931                 rpi_hdr = NULL;
4932                 goto err_free_dmabuf;
4933         }
4934
4935         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4936         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4937                 rpi_hdr = NULL;
4938                 goto err_free_coherent;
4939         }
4940
4941         /* Save the rpi header data for cleanup later. */
4942         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4943         if (!rpi_hdr)
4944                 goto err_free_coherent;
4945
4946         rpi_hdr->dmabuf = dmabuf;
4947         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4948         rpi_hdr->page_count = 1;
4949         spin_lock_irq(&phba->hbalock);
4950         rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4951         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4952
4953         /*
4954          * The next_rpi stores the next module-64 rpi value to post
4955          * in any subsequent rpi memory region postings.
4956          */
4957         phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4958         spin_unlock_irq(&phba->hbalock);
4959         return rpi_hdr;
4960
4961  err_free_coherent:
4962         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4963                           dmabuf->virt, dmabuf->phys);
4964  err_free_dmabuf:
4965         kfree(dmabuf);
4966         return NULL;
4967 }
4968
4969 /**
4970  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4971  * @phba: pointer to lpfc hba data structure.
4972  *
4973  * This routine is invoked to remove all memory resources allocated
4974  * to support rpis. This routine presumes the caller has released all
4975  * rpis consumed by fabric or port logins and is prepared to have
4976  * the header pages removed.
4977  **/
4978 void
4979 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4980 {
4981         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4982
4983         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4984                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4985                 list_del(&rpi_hdr->list);
4986                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4987                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4988                 kfree(rpi_hdr->dmabuf);
4989                 kfree(rpi_hdr);
4990         }
4991
4992         phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4993         memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4994 }
4995
4996 /**
4997  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4998  * @pdev: pointer to pci device data structure.
4999  *
5000  * This routine is invoked to allocate the driver hba data structure for an
5001  * HBA device. If the allocation is successful, the phba reference to the
5002  * PCI device data structure is set.
5003  *
5004  * Return codes
5005  *      pointer to @phba - successful
5006  *      NULL - error
5007  **/
5008 static struct lpfc_hba *
5009 lpfc_hba_alloc(struct pci_dev *pdev)
5010 {
5011         struct lpfc_hba *phba;
5012
5013         /* Allocate memory for HBA structure */
5014         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5015         if (!phba) {
5016                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5017                 return NULL;
5018         }
5019
5020         /* Set reference to PCI device in HBA structure */
5021         phba->pcidev = pdev;
5022
5023         /* Assign an unused board number */
5024         phba->brd_no = lpfc_get_instance();
5025         if (phba->brd_no < 0) {
5026                 kfree(phba);
5027                 return NULL;
5028         }
5029
5030         spin_lock_init(&phba->ct_ev_lock);
5031         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5032
5033         return phba;
5034 }
5035
5036 /**
5037  * lpfc_hba_free - Free driver hba data structure with a device.
5038  * @phba: pointer to lpfc hba data structure.
5039  *
5040  * This routine is invoked to free the driver hba data structure with an
5041  * HBA device.
5042  **/
5043 static void
5044 lpfc_hba_free(struct lpfc_hba *phba)
5045 {
5046         /* Release the driver assigned board number */
5047         idr_remove(&lpfc_hba_index, phba->brd_no);
5048
5049         kfree(phba);
5050         return;
5051 }
5052
5053 /**
5054  * lpfc_create_shost - Create hba physical port with associated scsi host.
5055  * @phba: pointer to lpfc hba data structure.
5056  *
5057  * This routine is invoked to create HBA physical port and associate a SCSI
5058  * host with it.
5059  *
5060  * Return codes
5061  *      0 - successful
5062  *      other values - error
5063  **/
5064 static int
5065 lpfc_create_shost(struct lpfc_hba *phba)
5066 {
5067         struct lpfc_vport *vport;
5068         struct Scsi_Host  *shost;
5069
5070         /* Initialize HBA FC structure */
5071         phba->fc_edtov = FF_DEF_EDTOV;
5072         phba->fc_ratov = FF_DEF_RATOV;
5073         phba->fc_altov = FF_DEF_ALTOV;
5074         phba->fc_arbtov = FF_DEF_ARBTOV;
5075
5076         atomic_set(&phba->sdev_cnt, 0);
5077         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5078         if (!vport)
5079                 return -ENODEV;
5080
5081         shost = lpfc_shost_from_vport(vport);
5082         phba->pport = vport;
5083         lpfc_debugfs_initialize(vport);
5084         /* Put reference to SCSI host to driver's device private data */
5085         pci_set_drvdata(phba->pcidev, shost);
5086
5087         return 0;
5088 }
5089
5090 /**
5091  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5092  * @phba: pointer to lpfc hba data structure.
5093  *
5094  * This routine is invoked to destroy HBA physical port and the associated
5095  * SCSI host.
5096  **/
5097 static void
5098 lpfc_destroy_shost(struct lpfc_hba *phba)
5099 {
5100         struct lpfc_vport *vport = phba->pport;
5101
5102         /* Destroy physical port that associated with the SCSI host */
5103         destroy_port(vport);
5104
5105         return;
5106 }
5107
5108 /**
5109  * lpfc_setup_bg - Setup Block guard structures and debug areas.
5110  * @phba: pointer to lpfc hba data structure.
5111  * @shost: the shost to be used to detect Block guard settings.
5112  *
5113  * This routine sets up the local Block guard protocol settings for @shost.
5114  * This routine also allocates memory for debugging bg buffers.
5115  **/
5116 static void
5117 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5118 {
5119         int pagecnt = 10;
5120         if (lpfc_prot_mask && lpfc_prot_guard) {
5121                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5122                                 "1478 Registering BlockGuard with the "
5123                                 "SCSI layer\n");
5124                 scsi_host_set_prot(shost, lpfc_prot_mask);
5125                 scsi_host_set_guard(shost, lpfc_prot_guard);
5126         }
5127         if (!_dump_buf_data) {
5128                 while (pagecnt) {
5129                         spin_lock_init(&_dump_buf_lock);
5130                         _dump_buf_data =
5131                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5132                         if (_dump_buf_data) {
5133                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5134                                         "9043 BLKGRD: allocated %d pages for "
5135                                        "_dump_buf_data at 0x%p\n",
5136                                        (1 << pagecnt), _dump_buf_data);
5137                                 _dump_buf_data_order = pagecnt;
5138                                 memset(_dump_buf_data, 0,
5139                                        ((1 << PAGE_SHIFT) << pagecnt));
5140                                 break;
5141                         } else
5142                                 --pagecnt;
5143                 }
5144                 if (!_dump_buf_data_order)
5145                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5146                                 "9044 BLKGRD: ERROR unable to allocate "
5147                                "memory for hexdump\n");
5148         } else
5149                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5150                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5151                        "\n", _dump_buf_data);
5152         if (!_dump_buf_dif) {
5153                 while (pagecnt) {
5154                         _dump_buf_dif =
5155                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5156                         if (_dump_buf_dif) {
5157                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5158                                         "9046 BLKGRD: allocated %d pages for "
5159                                        "_dump_buf_dif at 0x%p\n",
5160                                        (1 << pagecnt), _dump_buf_dif);
5161                                 _dump_buf_dif_order = pagecnt;
5162                                 memset(_dump_buf_dif, 0,
5163                                        ((1 << PAGE_SHIFT) << pagecnt));
5164                                 break;
5165                         } else
5166                                 --pagecnt;
5167                 }
5168                 if (!_dump_buf_dif_order)
5169                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5170                         "9047 BLKGRD: ERROR unable to allocate "
5171                                "memory for hexdump\n");
5172         } else
5173                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5174                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5175                        _dump_buf_dif);
5176 }
5177
5178 /**
5179  * lpfc_post_init_setup - Perform necessary device post initialization setup.
5180  * @phba: pointer to lpfc hba data structure.
5181  *
5182  * This routine is invoked to perform all the necessary post initialization
5183  * setup for the device.
5184  **/
5185 static void
5186 lpfc_post_init_setup(struct lpfc_hba *phba)
5187 {
5188         struct Scsi_Host  *shost;
5189         struct lpfc_adapter_event_header adapter_event;
5190
5191         /* Get the default values for Model Name and Description */
5192         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5193
5194         /*
5195          * hba setup may have changed the hba_queue_depth so we need to
5196          * adjust the value of can_queue.
5197          */
5198         shost = pci_get_drvdata(phba->pcidev);
5199         shost->can_queue = phba->cfg_hba_queue_depth - 10;
5200         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5201                 lpfc_setup_bg(phba, shost);
5202
5203         lpfc_host_attrib_init(shost);
5204
5205         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5206                 spin_lock_irq(shost->host_lock);
5207                 lpfc_poll_start_timer(phba);
5208                 spin_unlock_irq(shost->host_lock);
5209         }
5210
5211         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5212                         "0428 Perform SCSI scan\n");
5213         /* Send board arrival event to upper layer */
5214         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5215         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5216         fc_host_post_vendor_event(shost, fc_get_event_number(),
5217                                   sizeof(adapter_event),
5218                                   (char *) &adapter_event,
5219                                   LPFC_NL_VENDOR_ID);
5220         return;
5221 }
5222
5223 /**
5224  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5225  * @phba: pointer to lpfc hba data structure.
5226  *
5227  * This routine is invoked to set up the PCI device memory space for device
5228  * with SLI-3 interface spec.
5229  *
5230  * Return codes
5231  *      0 - successful
5232  *      other values - error
5233  **/
5234 static int
5235 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5236 {
5237         struct pci_dev *pdev;
5238         unsigned long bar0map_len, bar2map_len;
5239         int i, hbq_count;
5240         void *ptr;
5241         int error = -ENODEV;
5242
5243         /* Obtain PCI device reference */
5244         if (!phba->pcidev)
5245                 return error;
5246         else
5247                 pdev = phba->pcidev;
5248
5249         /* Set the device DMA mask size */
5250         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5251          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5252                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5253                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5254                         return error;
5255                 }
5256         }
5257
5258         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5259          * required by each mapping.
5260          */
5261         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5262         bar0map_len = pci_resource_len(pdev, 0);
5263
5264         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5265         bar2map_len = pci_resource_len(pdev, 2);
5266
5267         /* Map HBA SLIM to a kernel virtual address. */
5268         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5269         if (!phba->slim_memmap_p) {
5270                 dev_printk(KERN_ERR, &pdev->dev,
5271                            "ioremap failed for SLIM memory.\n");
5272                 goto out;
5273         }
5274
5275         /* Map HBA Control Registers to a kernel virtual address. */
5276         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5277         if (!phba->ctrl_regs_memmap_p) {
5278                 dev_printk(KERN_ERR, &pdev->dev,
5279                            "ioremap failed for HBA control registers.\n");
5280                 goto out_iounmap_slim;
5281         }
5282
5283         /* Allocate memory for SLI-2 structures */
5284         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5285                                                SLI2_SLIM_SIZE,
5286                                                &phba->slim2p.phys,
5287                                                GFP_KERNEL);
5288         if (!phba->slim2p.virt)
5289                 goto out_iounmap;
5290
5291         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5292         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5293         phba->mbox_ext = (phba->slim2p.virt +
5294                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5295         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5296         phba->IOCBs = (phba->slim2p.virt +
5297                        offsetof(struct lpfc_sli2_slim, IOCBs));
5298
5299         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5300                                                  lpfc_sli_hbq_size(),
5301                                                  &phba->hbqslimp.phys,
5302                                                  GFP_KERNEL);
5303         if (!phba->hbqslimp.virt)
5304                 goto out_free_slim;
5305
5306         hbq_count = lpfc_sli_hbq_count();
5307         ptr = phba->hbqslimp.virt;
5308         for (i = 0; i < hbq_count; ++i) {
5309                 phba->hbqs[i].hbq_virt = ptr;
5310                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5311                 ptr += (lpfc_hbq_defs[i]->entry_count *
5312                         sizeof(struct lpfc_hbq_entry));
5313         }
5314         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5315         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5316
5317         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5318
5319         INIT_LIST_HEAD(&phba->rb_pend_list);
5320
5321         phba->MBslimaddr = phba->slim_memmap_p;
5322         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5323         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5324         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5325         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5326
5327         return 0;
5328
5329 out_free_slim:
5330         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5331                           phba->slim2p.virt, phba->slim2p.phys);
5332 out_iounmap:
5333         iounmap(phba->ctrl_regs_memmap_p);
5334 out_iounmap_slim:
5335         iounmap(phba->slim_memmap_p);
5336 out:
5337         return error;
5338 }
5339
5340 /**
5341  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5342  * @phba: pointer to lpfc hba data structure.
5343  *
5344  * This routine is invoked to unset the PCI device memory space for device
5345  * with SLI-3 interface spec.
5346  **/
5347 static void
5348 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5349 {
5350         struct pci_dev *pdev;
5351
5352         /* Obtain PCI device reference */
5353         if (!phba->pcidev)
5354                 return;
5355         else
5356                 pdev = phba->pcidev;
5357
5358         /* Free coherent DMA memory allocated */
5359         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5360                           phba->hbqslimp.virt, phba->hbqslimp.phys);
5361         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5362                           phba->slim2p.virt, phba->slim2p.phys);
5363
5364         /* I/O memory unmap */
5365         iounmap(phba->ctrl_regs_memmap_p);
5366         iounmap(phba->slim_memmap_p);
5367
5368         return;
5369 }
5370
5371 /**
5372  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5373  * @phba: pointer to lpfc hba data structure.
5374  *
5375  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5376  * done and check status.
5377  *
5378  * Return 0 if successful, otherwise -ENODEV.
5379  **/
5380 int
5381 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5382 {
5383         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5384         struct lpfc_register reg_data;
5385         int i, port_error = 0;
5386         uint32_t if_type;
5387
5388         if (!phba->sli4_hba.PSMPHRregaddr)
5389                 return -ENODEV;
5390
5391         /* Wait up to 30 seconds for the SLI Port POST done and ready */
5392         for (i = 0; i < 3000; i++) {
5393                 portsmphr_reg.word0 = readl(phba->sli4_hba.PSMPHRregaddr);
5394                 if (bf_get(lpfc_port_smphr_perr, &portsmphr_reg)) {
5395                         /* Port has a fatal POST error, break out */
5396                         port_error = -ENODEV;
5397                         break;
5398                 }
5399                 if (LPFC_POST_STAGE_PORT_READY ==
5400                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
5401                         break;
5402                 msleep(10);
5403         }
5404
5405         /*
5406          * If there was a port error during POST, then don't proceed with
5407          * other register reads as the data may not be valid.  Just exit.
5408          */
5409         if (port_error) {
5410                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5411                         "1408 Port Failed POST - portsmphr=0x%x, "
5412                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5413                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5414                         portsmphr_reg.word0,
5415                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5416                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5417                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5418                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5419                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5420                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5421                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5422                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5423         } else {
5424                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5425                                 "2534 Device Info: SLIFamily=0x%x, "
5426                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5427                                 "SLIHint_2=0x%x, FT=0x%x\n",
5428                                 bf_get(lpfc_sli_intf_sli_family,
5429                                        &phba->sli4_hba.sli_intf),
5430                                 bf_get(lpfc_sli_intf_slirev,
5431                                        &phba->sli4_hba.sli_intf),
5432                                 bf_get(lpfc_sli_intf_if_type,
5433                                        &phba->sli4_hba.sli_intf),
5434                                 bf_get(lpfc_sli_intf_sli_hint1,
5435                                        &phba->sli4_hba.sli_intf),
5436                                 bf_get(lpfc_sli_intf_sli_hint2,
5437                                        &phba->sli4_hba.sli_intf),
5438                                 bf_get(lpfc_sli_intf_func_type,
5439                                        &phba->sli4_hba.sli_intf));
5440                 /*
5441                  * Check for other Port errors during the initialization
5442                  * process.  Fail the load if the port did not come up
5443                  * correctly.
5444                  */
5445                 if_type = bf_get(lpfc_sli_intf_if_type,
5446                                  &phba->sli4_hba.sli_intf);
5447                 switch (if_type) {
5448                 case LPFC_SLI_INTF_IF_TYPE_0:
5449                         phba->sli4_hba.ue_mask_lo =
5450                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5451                         phba->sli4_hba.ue_mask_hi =
5452                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5453                         uerrlo_reg.word0 =
5454                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5455                         uerrhi_reg.word0 =
5456                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5457                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5458                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5459                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5460                                                 "1422 Unrecoverable Error "
5461                                                 "Detected during POST "
5462                                                 "uerr_lo_reg=0x%x, "
5463                                                 "uerr_hi_reg=0x%x, "
5464                                                 "ue_mask_lo_reg=0x%x, "
5465                                                 "ue_mask_hi_reg=0x%x\n",
5466                                                 uerrlo_reg.word0,
5467                                                 uerrhi_reg.word0,
5468                                                 phba->sli4_hba.ue_mask_lo,
5469                                                 phba->sli4_hba.ue_mask_hi);
5470                                 port_error = -ENODEV;
5471                         }
5472                         break;
5473                 case LPFC_SLI_INTF_IF_TYPE_2:
5474                         /* Final checks.  The port status should be clean. */
5475                         reg_data.word0 =
5476                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
5477                         if (bf_get(lpfc_sliport_status_err, &reg_data)) {
5478                                 phba->work_status[0] =
5479                                         readl(phba->sli4_hba.u.if_type2.
5480                                               ERR1regaddr);
5481                                 phba->work_status[1] =
5482                                         readl(phba->sli4_hba.u.if_type2.
5483                                               ERR2regaddr);
5484                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5485                                         "2888 Port Error Detected "
5486                                         "during POST: "
5487                                         "port status reg 0x%x, "
5488                                         "port_smphr reg 0x%x, "
5489                                         "error 1=0x%x, error 2=0x%x\n",
5490                                         reg_data.word0,
5491                                         portsmphr_reg.word0,
5492                                         phba->work_status[0],
5493                                         phba->work_status[1]);
5494                                 port_error = -ENODEV;
5495                         }
5496                         break;
5497                 case LPFC_SLI_INTF_IF_TYPE_1:
5498                 default:
5499                         break;
5500                 }
5501         }
5502         return port_error;
5503 }
5504
5505 /**
5506  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5507  * @phba: pointer to lpfc hba data structure.
5508  * @if_type:  The SLI4 interface type getting configured.
5509  *
5510  * This routine is invoked to set up SLI4 BAR0 PCI config space register
5511  * memory map.
5512  **/
5513 static void
5514 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5515 {
5516         switch (if_type) {
5517         case LPFC_SLI_INTF_IF_TYPE_0:
5518                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5519                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5520                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5521                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5522                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5523                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5524                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5525                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5526                 phba->sli4_hba.SLIINTFregaddr =
5527                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5528                 break;
5529         case LPFC_SLI_INTF_IF_TYPE_2:
5530                 phba->sli4_hba.u.if_type2.ERR1regaddr =
5531                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_1;
5532                 phba->sli4_hba.u.if_type2.ERR2regaddr =
5533                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_2;
5534                 phba->sli4_hba.u.if_type2.CTRLregaddr =
5535                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_CNTRL;
5536                 phba->sli4_hba.u.if_type2.STATUSregaddr =
5537                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_STATUS;
5538                 phba->sli4_hba.SLIINTFregaddr =
5539                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5540                 phba->sli4_hba.PSMPHRregaddr =
5541                      phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_IF2_SMPHR;
5542                 phba->sli4_hba.RQDBregaddr =
5543                         phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5544                 phba->sli4_hba.WQDBregaddr =
5545                         phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5546                 phba->sli4_hba.EQCQDBregaddr =
5547                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5548                 phba->sli4_hba.MQDBregaddr =
5549                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5550                 phba->sli4_hba.BMBXregaddr =
5551                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5552                 break;
5553         case LPFC_SLI_INTF_IF_TYPE_1:
5554         default:
5555                 dev_printk(KERN_ERR, &phba->pcidev->dev,
5556                            "FATAL - unsupported SLI4 interface type - %d\n",
5557                            if_type);
5558                 break;
5559         }
5560 }
5561
5562 /**
5563  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5564  * @phba: pointer to lpfc hba data structure.
5565  *
5566  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5567  * memory map.
5568  **/
5569 static void
5570 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5571 {
5572         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5573                 LPFC_SLIPORT_IF0_SMPHR;
5574         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5575                 LPFC_HST_ISR0;
5576         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5577                 LPFC_HST_IMR0;
5578         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5579                 LPFC_HST_ISCR0;
5580 }
5581
5582 /**
5583  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5584  * @phba: pointer to lpfc hba data structure.
5585  * @vf: virtual function number
5586  *
5587  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5588  * based on the given viftual function number, @vf.
5589  *
5590  * Return 0 if successful, otherwise -ENODEV.
5591  **/
5592 static int
5593 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5594 {
5595         if (vf > LPFC_VIR_FUNC_MAX)
5596                 return -ENODEV;
5597
5598         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5599                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5600         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5601                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5602         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5603                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5604         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5605                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5606         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5607                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5608         return 0;
5609 }
5610
5611 /**
5612  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5613  * @phba: pointer to lpfc hba data structure.
5614  *
5615  * This routine is invoked to create the bootstrap mailbox
5616  * region consistent with the SLI-4 interface spec.  This
5617  * routine allocates all memory necessary to communicate
5618  * mailbox commands to the port and sets up all alignment
5619  * needs.  No locks are expected to be held when calling
5620  * this routine.
5621  *
5622  * Return codes
5623  *      0 - successful
5624  *      -ENOMEM - could not allocated memory.
5625  **/
5626 static int
5627 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5628 {
5629         uint32_t bmbx_size;
5630         struct lpfc_dmabuf *dmabuf;
5631         struct dma_address *dma_address;
5632         uint32_t pa_addr;
5633         uint64_t phys_addr;
5634
5635         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5636         if (!dmabuf)
5637                 return -ENOMEM;
5638
5639         /*
5640          * The bootstrap mailbox region is comprised of 2 parts
5641          * plus an alignment restriction of 16 bytes.
5642          */
5643         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5644         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5645                                           bmbx_size,
5646                                           &dmabuf->phys,
5647                                           GFP_KERNEL);
5648         if (!dmabuf->virt) {
5649                 kfree(dmabuf);
5650                 return -ENOMEM;
5651         }
5652         memset(dmabuf->virt, 0, bmbx_size);
5653
5654         /*
5655          * Initialize the bootstrap mailbox pointers now so that the register
5656          * operations are simple later.  The mailbox dma address is required
5657          * to be 16-byte aligned.  Also align the virtual memory as each
5658          * maibox is copied into the bmbx mailbox region before issuing the
5659          * command to the port.
5660          */
5661         phba->sli4_hba.bmbx.dmabuf = dmabuf;
5662         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5663
5664         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5665                                               LPFC_ALIGN_16_BYTE);
5666         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5667                                               LPFC_ALIGN_16_BYTE);
5668
5669         /*
5670          * Set the high and low physical addresses now.  The SLI4 alignment
5671          * requirement is 16 bytes and the mailbox is posted to the port
5672          * as two 30-bit addresses.  The other data is a bit marking whether
5673          * the 30-bit address is the high or low address.
5674          * Upcast bmbx aphys to 64bits so shift instruction compiles
5675          * clean on 32 bit machines.
5676          */
5677         dma_address = &phba->sli4_hba.bmbx.dma_address;
5678         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5679         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5680         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5681                                            LPFC_BMBX_BIT1_ADDR_HI);
5682
5683         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5684         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5685                                            LPFC_BMBX_BIT1_ADDR_LO);
5686         return 0;
5687 }
5688
5689 /**
5690  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5691  * @phba: pointer to lpfc hba data structure.
5692  *
5693  * This routine is invoked to teardown the bootstrap mailbox
5694  * region and release all host resources. This routine requires
5695  * the caller to ensure all mailbox commands recovered, no
5696  * additional mailbox comands are sent, and interrupts are disabled
5697  * before calling this routine.
5698  *
5699  **/
5700 static void
5701 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5702 {
5703         dma_free_coherent(&phba->pcidev->dev,
5704                           phba->sli4_hba.bmbx.bmbx_size,
5705                           phba->sli4_hba.bmbx.dmabuf->virt,
5706                           phba->sli4_hba.bmbx.dmabuf->phys);
5707
5708         kfree(phba->sli4_hba.bmbx.dmabuf);
5709         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5710 }
5711
5712 /**
5713  * lpfc_sli4_read_config - Get the config parameters.
5714  * @phba: pointer to lpfc hba data structure.
5715  *
5716  * This routine is invoked to read the configuration parameters from the HBA.
5717  * The configuration parameters are used to set the base and maximum values
5718  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5719  * allocation for the port.
5720  *
5721  * Return codes
5722  *      0 - successful
5723  *      -ENOMEM - No availble memory
5724  *      -EIO - The mailbox failed to complete successfully.
5725  **/
5726 static int
5727 lpfc_sli4_read_config(struct lpfc_hba *phba)
5728 {
5729         LPFC_MBOXQ_t *pmb;
5730         struct lpfc_mbx_read_config *rd_config;
5731         uint32_t rc = 0;
5732
5733         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5734         if (!pmb) {
5735                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5736                                 "2011 Unable to allocate memory for issuing "
5737                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5738                 return -ENOMEM;
5739         }
5740
5741         lpfc_read_config(phba, pmb);
5742
5743         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5744         if (rc != MBX_SUCCESS) {
5745                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5746                         "2012 Mailbox failed , mbxCmd x%x "
5747                         "READ_CONFIG, mbxStatus x%x\n",
5748                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
5749                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
5750                 rc = -EIO;
5751         } else {
5752                 rd_config = &pmb->u.mqe.un.rd_config;
5753                 phba->sli4_hba.max_cfg_param.max_xri =
5754                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5755                 phba->sli4_hba.max_cfg_param.xri_base =
5756                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5757                 phba->sli4_hba.max_cfg_param.max_vpi =
5758                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5759                 phba->sli4_hba.max_cfg_param.vpi_base =
5760                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5761                 phba->sli4_hba.max_cfg_param.max_rpi =
5762                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5763                 phba->sli4_hba.max_cfg_param.rpi_base =
5764                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5765                 phba->sli4_hba.max_cfg_param.max_vfi =
5766                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5767                 phba->sli4_hba.max_cfg_param.vfi_base =
5768                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5769                 phba->sli4_hba.max_cfg_param.max_fcfi =
5770                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5771                 phba->sli4_hba.max_cfg_param.fcfi_base =
5772                         bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
5773                 phba->sli4_hba.max_cfg_param.max_eq =
5774                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5775                 phba->sli4_hba.max_cfg_param.max_rq =
5776                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5777                 phba->sli4_hba.max_cfg_param.max_wq =
5778                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5779                 phba->sli4_hba.max_cfg_param.max_cq =
5780                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5781                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5782                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5783                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5784                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5785                 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5786                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5787                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5788                 phba->max_vports = phba->max_vpi;
5789                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5790                                 "2003 cfg params XRI(B:%d M:%d), "
5791                                 "VPI(B:%d M:%d) "
5792                                 "VFI(B:%d M:%d) "
5793                                 "RPI(B:%d M:%d) "
5794                                 "FCFI(B:%d M:%d)\n",
5795                                 phba->sli4_hba.max_cfg_param.xri_base,
5796                                 phba->sli4_hba.max_cfg_param.max_xri,
5797                                 phba->sli4_hba.max_cfg_param.vpi_base,
5798                                 phba->sli4_hba.max_cfg_param.max_vpi,
5799                                 phba->sli4_hba.max_cfg_param.vfi_base,
5800                                 phba->sli4_hba.max_cfg_param.max_vfi,
5801                                 phba->sli4_hba.max_cfg_param.rpi_base,
5802                                 phba->sli4_hba.max_cfg_param.max_rpi,
5803                                 phba->sli4_hba.max_cfg_param.fcfi_base,
5804                                 phba->sli4_hba.max_cfg_param.max_fcfi);
5805         }
5806         mempool_free(pmb, phba->mbox_mem_pool);
5807
5808         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
5809         if (phba->cfg_hba_queue_depth >
5810                 (phba->sli4_hba.max_cfg_param.max_xri -
5811                         lpfc_sli4_get_els_iocb_cnt(phba)))
5812                 phba->cfg_hba_queue_depth =
5813                         phba->sli4_hba.max_cfg_param.max_xri -
5814                                 lpfc_sli4_get_els_iocb_cnt(phba);
5815         return rc;
5816 }
5817
5818 /**
5819  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
5820  * @phba: pointer to lpfc hba data structure.
5821  *
5822  * This routine is invoked to setup the port-side endian order when
5823  * the port if_type is 0.  This routine has no function for other
5824  * if_types.
5825  *
5826  * Return codes
5827  *      0 - successful
5828  *      -ENOMEM - No availble memory
5829  *      -EIO - The mailbox failed to complete successfully.
5830  **/
5831 static int
5832 lpfc_setup_endian_order(struct lpfc_hba *phba)
5833 {
5834         LPFC_MBOXQ_t *mboxq;
5835         uint32_t if_type, rc = 0;
5836         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
5837                                       HOST_ENDIAN_HIGH_WORD1};
5838
5839         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
5840         switch (if_type) {
5841         case LPFC_SLI_INTF_IF_TYPE_0:
5842                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5843                                                        GFP_KERNEL);
5844                 if (!mboxq) {
5845                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5846                                         "0492 Unable to allocate memory for "
5847                                         "issuing SLI_CONFIG_SPECIAL mailbox "
5848                                         "command\n");
5849                         return -ENOMEM;
5850                 }
5851
5852                 /*
5853                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
5854                  * two words to contain special data values and no other data.
5855                  */
5856                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5857                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5858                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5859                 if (rc != MBX_SUCCESS) {
5860                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5861                                         "0493 SLI_CONFIG_SPECIAL mailbox "
5862                                         "failed with status x%x\n",
5863                                         rc);
5864                         rc = -EIO;
5865                 }
5866                 mempool_free(mboxq, phba->mbox_mem_pool);
5867                 break;
5868         case LPFC_SLI_INTF_IF_TYPE_2:
5869         case LPFC_SLI_INTF_IF_TYPE_1:
5870         default:
5871                 break;
5872         }
5873         return rc;
5874 }
5875
5876 /**
5877  * lpfc_sli4_queue_create - Create all the SLI4 queues
5878  * @phba: pointer to lpfc hba data structure.
5879  *
5880  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5881  * operation. For each SLI4 queue type, the parameters such as queue entry
5882  * count (queue depth) shall be taken from the module parameter. For now,
5883  * we just use some constant number as place holder.
5884  *
5885  * Return codes
5886  *      0 - successful
5887  *      -ENOMEM - No availble memory
5888  *      -EIO - The mailbox failed to complete successfully.
5889  **/
5890 static int
5891 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5892 {
5893         struct lpfc_queue *qdesc;
5894         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5895         int cfg_fcp_wq_count;
5896         int cfg_fcp_eq_count;
5897
5898         /*
5899          * Sanity check for confiugred queue parameters against the run-time
5900          * device parameters
5901          */
5902
5903         /* Sanity check on FCP fast-path WQ parameters */
5904         cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5905         if (cfg_fcp_wq_count >
5906             (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5907                 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5908                                    LPFC_SP_WQN_DEF;
5909                 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5910                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5911                                         "2581 Not enough WQs (%d) from "
5912                                         "the pci function for supporting "
5913                                         "FCP WQs (%d)\n",
5914                                         phba->sli4_hba.max_cfg_param.max_wq,
5915                                         phba->cfg_fcp_wq_count);
5916                         goto out_error;
5917                 }
5918                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5919                                 "2582 Not enough WQs (%d) from the pci "
5920                                 "function for supporting the requested "
5921                                 "FCP WQs (%d), the actual FCP WQs can "
5922                                 "be supported: %d\n",
5923                                 phba->sli4_hba.max_cfg_param.max_wq,
5924                                 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5925         }
5926         /* The actual number of FCP work queues adopted */
5927         phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5928
5929         /* Sanity check on FCP fast-path EQ parameters */
5930         cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5931         if (cfg_fcp_eq_count >
5932             (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5933                 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5934                                    LPFC_SP_EQN_DEF;
5935                 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5936                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5937                                         "2574 Not enough EQs (%d) from the "
5938                                         "pci function for supporting FCP "
5939                                         "EQs (%d)\n",
5940                                         phba->sli4_hba.max_cfg_param.max_eq,
5941                                         phba->cfg_fcp_eq_count);
5942                         goto out_error;
5943                 }
5944                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5945                                 "2575 Not enough EQs (%d) from the pci "
5946                                 "function for supporting the requested "
5947                                 "FCP EQs (%d), the actual FCP EQs can "
5948                                 "be supported: %d\n",
5949                                 phba->sli4_hba.max_cfg_param.max_eq,
5950                                 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5951         }
5952         /* It does not make sense to have more EQs than WQs */
5953         if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5954                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5955                                 "2593 The FCP EQ count(%d) cannot be greater "
5956                                 "than the FCP WQ count(%d), limiting the "
5957                                 "FCP EQ count to %d\n", cfg_fcp_eq_count,
5958                                 phba->cfg_fcp_wq_count,
5959                                 phba->cfg_fcp_wq_count);
5960                 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5961         }
5962         /* The actual number of FCP event queues adopted */
5963         phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5964         /* The overall number of event queues used */
5965         phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
5966
5967         /*
5968          * Create Event Queues (EQs)
5969          */
5970
5971         /* Get EQ depth from module parameter, fake the default for now */
5972         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5973         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5974
5975         /* Create slow path event queue */
5976         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5977                                       phba->sli4_hba.eq_ecount);
5978         if (!qdesc) {
5979                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5980                                 "0496 Failed allocate slow-path EQ\n");
5981                 goto out_error;
5982         }
5983         phba->sli4_hba.sp_eq = qdesc;
5984
5985         /* Create fast-path FCP Event Queue(s) */
5986         phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5987                                phba->cfg_fcp_eq_count), GFP_KERNEL);
5988         if (!phba->sli4_hba.fp_eq) {
5989                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5990                                 "2576 Failed allocate memory for fast-path "
5991                                 "EQ record array\n");
5992                 goto out_free_sp_eq;
5993         }
5994         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5995                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5996                                               phba->sli4_hba.eq_ecount);
5997                 if (!qdesc) {
5998                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5999                                         "0497 Failed allocate fast-path EQ\n");
6000                         goto out_free_fp_eq;
6001                 }
6002                 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6003         }
6004
6005         /*
6006          * Create Complete Queues (CQs)
6007          */
6008
6009         /* Get CQ depth from module parameter, fake the default for now */
6010         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6011         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6012
6013         /* Create slow-path Mailbox Command Complete Queue */
6014         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6015                                       phba->sli4_hba.cq_ecount);
6016         if (!qdesc) {
6017                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6018                                 "0500 Failed allocate slow-path mailbox CQ\n");
6019                 goto out_free_fp_eq;
6020         }
6021         phba->sli4_hba.mbx_cq = qdesc;
6022
6023         /* Create slow-path ELS Complete Queue */
6024         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6025                                       phba->sli4_hba.cq_ecount);
6026         if (!qdesc) {
6027                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6028                                 "0501 Failed allocate slow-path ELS CQ\n");
6029                 goto out_free_mbx_cq;
6030         }
6031         phba->sli4_hba.els_cq = qdesc;
6032
6033
6034         /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
6035         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6036                                 phba->cfg_fcp_eq_count), GFP_KERNEL);
6037         if (!phba->sli4_hba.fcp_cq) {
6038                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6039                                 "2577 Failed allocate memory for fast-path "
6040                                 "CQ record array\n");
6041                 goto out_free_els_cq;
6042         }
6043         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6044                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6045                                               phba->sli4_hba.cq_ecount);
6046                 if (!qdesc) {
6047                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6048                                         "0499 Failed allocate fast-path FCP "
6049                                         "CQ (%d)\n", fcp_cqidx);
6050                         goto out_free_fcp_cq;
6051                 }
6052                 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6053         }
6054
6055         /* Create Mailbox Command Queue */
6056         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6057         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6058
6059         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6060                                       phba->sli4_hba.mq_ecount);
6061         if (!qdesc) {
6062                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6063                                 "0505 Failed allocate slow-path MQ\n");
6064                 goto out_free_fcp_cq;
6065         }
6066         phba->sli4_hba.mbx_wq = qdesc;
6067
6068         /*
6069          * Create all the Work Queues (WQs)
6070          */
6071         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6072         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6073
6074         /* Create slow-path ELS Work Queue */
6075         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6076                                       phba->sli4_hba.wq_ecount);
6077         if (!qdesc) {
6078                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6079                                 "0504 Failed allocate slow-path ELS WQ\n");
6080                 goto out_free_mbx_wq;
6081         }
6082         phba->sli4_hba.els_wq = qdesc;
6083
6084         /* Create fast-path FCP Work Queue(s) */
6085         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6086                                 phba->cfg_fcp_wq_count), GFP_KERNEL);
6087         if (!phba->sli4_hba.fcp_wq) {
6088                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6089                                 "2578 Failed allocate memory for fast-path "
6090                                 "WQ record array\n");
6091                 goto out_free_els_wq;
6092         }
6093         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6094                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6095                                               phba->sli4_hba.wq_ecount);
6096                 if (!qdesc) {
6097                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6098                                         "0503 Failed allocate fast-path FCP "
6099                                         "WQ (%d)\n", fcp_wqidx);
6100                         goto out_free_fcp_wq;
6101                 }
6102                 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6103         }
6104
6105         /*
6106          * Create Receive Queue (RQ)
6107          */
6108         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6109         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6110
6111         /* Create Receive Queue for header */
6112         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6113                                       phba->sli4_hba.rq_ecount);
6114         if (!qdesc) {
6115                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6116                                 "0506 Failed allocate receive HRQ\n");
6117                 goto out_free_fcp_wq;
6118         }
6119         phba->sli4_hba.hdr_rq = qdesc;
6120
6121         /* Create Receive Queue for data */
6122         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6123                                       phba->sli4_hba.rq_ecount);
6124         if (!qdesc) {
6125                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6126                                 "0507 Failed allocate receive DRQ\n");
6127                 goto out_free_hdr_rq;
6128         }
6129         phba->sli4_hba.dat_rq = qdesc;
6130
6131         return 0;
6132
6133 out_free_hdr_rq:
6134         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6135         phba->sli4_hba.hdr_rq = NULL;
6136 out_free_fcp_wq:
6137         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6138                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6139                 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6140         }
6141         kfree(phba->sli4_hba.fcp_wq);
6142 out_free_els_wq:
6143         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6144         phba->sli4_hba.els_wq = NULL;
6145 out_free_mbx_wq:
6146         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6147         phba->sli4_hba.mbx_wq = NULL;
6148 out_free_fcp_cq:
6149         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6150                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6151                 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6152         }
6153         kfree(phba->sli4_hba.fcp_cq);
6154 out_free_els_cq:
6155         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6156         phba->sli4_hba.els_cq = NULL;
6157 out_free_mbx_cq:
6158         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6159         phba->sli4_hba.mbx_cq = NULL;
6160 out_free_fp_eq:
6161         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6162                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6163                 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6164         }
6165         kfree(phba->sli4_hba.fp_eq);
6166 out_free_sp_eq:
6167         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6168         phba->sli4_hba.sp_eq = NULL;
6169 out_error:
6170         return -ENOMEM;
6171 }
6172
6173 /**
6174  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6175  * @phba: pointer to lpfc hba data structure.
6176  *
6177  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6178  * operation.
6179  *
6180  * Return codes
6181  *      0 - successful
6182  *      -ENOMEM - No availble memory
6183  *      -EIO - The mailbox failed to complete successfully.
6184  **/
6185 static void
6186 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6187 {
6188         int fcp_qidx;
6189
6190         /* Release mailbox command work queue */
6191         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6192         phba->sli4_hba.mbx_wq = NULL;
6193
6194         /* Release ELS work queue */
6195         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6196         phba->sli4_hba.els_wq = NULL;
6197
6198         /* Release FCP work queue */
6199         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6200                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6201         kfree(phba->sli4_hba.fcp_wq);
6202         phba->sli4_hba.fcp_wq = NULL;
6203
6204         /* Release unsolicited receive queue */
6205         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6206         phba->sli4_hba.hdr_rq = NULL;
6207         lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6208         phba->sli4_hba.dat_rq = NULL;
6209
6210         /* Release ELS complete queue */
6211         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6212         phba->sli4_hba.els_cq = NULL;
6213
6214         /* Release mailbox command complete queue */
6215         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6216         phba->sli4_hba.mbx_cq = NULL;
6217
6218         /* Release FCP response complete queue */
6219         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6220                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
6221         kfree(phba->sli4_hba.fcp_cq);
6222         phba->sli4_hba.fcp_cq = NULL;
6223
6224         /* Release fast-path event queue */
6225         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6226                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6227         kfree(phba->sli4_hba.fp_eq);
6228         phba->sli4_hba.fp_eq = NULL;
6229
6230         /* Release slow-path event queue */
6231         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6232         phba->sli4_hba.sp_eq = NULL;
6233
6234         return;
6235 }
6236
6237 /**
6238  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6239  * @phba: pointer to lpfc hba data structure.
6240  *
6241  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6242  * operation.
6243  *
6244  * Return codes
6245  *      0 - successful
6246  *      -ENOMEM - No availble memory
6247  *      -EIO - The mailbox failed to complete successfully.
6248  **/
6249 int
6250 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6251 {
6252         int rc = -ENOMEM;
6253         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6254         int fcp_cq_index = 0;
6255
6256         /*
6257          * Set up Event Queues (EQs)
6258          */
6259
6260         /* Set up slow-path event queue */
6261         if (!phba->sli4_hba.sp_eq) {
6262                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6263                                 "0520 Slow-path EQ not allocated\n");
6264                 goto out_error;
6265         }
6266         rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6267                             LPFC_SP_DEF_IMAX);
6268         if (rc) {
6269                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6270                                 "0521 Failed setup of slow-path EQ: "
6271                                 "rc = 0x%x\n", rc);
6272                 goto out_error;
6273         }
6274         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6275                         "2583 Slow-path EQ setup: queue-id=%d\n",
6276                         phba->sli4_hba.sp_eq->queue_id);
6277
6278         /* Set up fast-path event queue */
6279         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6280                 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6281                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6282                                         "0522 Fast-path EQ (%d) not "
6283                                         "allocated\n", fcp_eqidx);
6284                         goto out_destroy_fp_eq;
6285                 }
6286                 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6287                                     phba->cfg_fcp_imax);
6288                 if (rc) {
6289                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6290                                         "0523 Failed setup of fast-path EQ "
6291                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6292                         goto out_destroy_fp_eq;
6293                 }
6294                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6295                                 "2584 Fast-path EQ setup: "
6296                                 "queue[%d]-id=%d\n", fcp_eqidx,
6297                                 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6298         }
6299
6300         /*
6301          * Set up Complete Queues (CQs)
6302          */
6303
6304         /* Set up slow-path MBOX Complete Queue as the first CQ */
6305         if (!phba->sli4_hba.mbx_cq) {
6306                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6307                                 "0528 Mailbox CQ not allocated\n");
6308                 goto out_destroy_fp_eq;
6309         }
6310         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6311                             LPFC_MCQ, LPFC_MBOX);
6312         if (rc) {
6313                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6314                                 "0529 Failed setup of slow-path mailbox CQ: "
6315                                 "rc = 0x%x\n", rc);
6316                 goto out_destroy_fp_eq;
6317         }
6318         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6319                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6320                         phba->sli4_hba.mbx_cq->queue_id,
6321                         phba->sli4_hba.sp_eq->queue_id);
6322
6323         /* Set up slow-path ELS Complete Queue */
6324         if (!phba->sli4_hba.els_cq) {
6325                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6326                                 "0530 ELS CQ not allocated\n");
6327                 goto out_destroy_mbx_cq;
6328         }
6329         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6330                             LPFC_WCQ, LPFC_ELS);
6331         if (rc) {
6332                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6333                                 "0531 Failed setup of slow-path ELS CQ: "
6334                                 "rc = 0x%x\n", rc);
6335                 goto out_destroy_mbx_cq;
6336         }
6337         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6338                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6339                         phba->sli4_hba.els_cq->queue_id,
6340                         phba->sli4_hba.sp_eq->queue_id);
6341
6342         /* Set up fast-path FCP Response Complete Queue */
6343         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6344                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6345                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6346                                         "0526 Fast-path FCP CQ (%d) not "
6347                                         "allocated\n", fcp_cqidx);
6348                         goto out_destroy_fcp_cq;
6349                 }
6350                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
6351                                     phba->sli4_hba.fp_eq[fcp_cqidx],
6352                                     LPFC_WCQ, LPFC_FCP);
6353                 if (rc) {
6354                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6355                                         "0527 Failed setup of fast-path FCP "
6356                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6357                         goto out_destroy_fcp_cq;
6358                 }
6359                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6360                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
6361                                 "parent eq[%d]-id=%d\n",
6362                                 fcp_cqidx,
6363                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6364                                 fcp_cqidx,
6365                                 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
6366         }
6367
6368         /*
6369          * Set up all the Work Queues (WQs)
6370          */
6371
6372         /* Set up Mailbox Command Queue */
6373         if (!phba->sli4_hba.mbx_wq) {
6374                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6375                                 "0538 Slow-path MQ not allocated\n");
6376                 goto out_destroy_fcp_cq;
6377         }
6378         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6379                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
6380         if (rc) {
6381                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6382                                 "0539 Failed setup of slow-path MQ: "
6383                                 "rc = 0x%x\n", rc);
6384                 goto out_destroy_fcp_cq;
6385         }
6386         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6387                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6388                         phba->sli4_hba.mbx_wq->queue_id,
6389                         phba->sli4_hba.mbx_cq->queue_id);
6390
6391         /* Set up slow-path ELS Work Queue */
6392         if (!phba->sli4_hba.els_wq) {
6393                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6394                                 "0536 Slow-path ELS WQ not allocated\n");
6395                 goto out_destroy_mbx_wq;
6396         }
6397         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6398                             phba->sli4_hba.els_cq, LPFC_ELS);
6399         if (rc) {
6400                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6401                                 "0537 Failed setup of slow-path ELS WQ: "
6402                                 "rc = 0x%x\n", rc);
6403                 goto out_destroy_mbx_wq;
6404         }
6405         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6406                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6407                         phba->sli4_hba.els_wq->queue_id,
6408                         phba->sli4_hba.els_cq->queue_id);
6409
6410         /* Set up fast-path FCP Work Queue */
6411         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6412                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6413                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6414                                         "0534 Fast-path FCP WQ (%d) not "
6415                                         "allocated\n", fcp_wqidx);
6416                         goto out_destroy_fcp_wq;
6417                 }
6418                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6419                                     phba->sli4_hba.fcp_cq[fcp_cq_index],
6420                                     LPFC_FCP);
6421                 if (rc) {
6422                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6423                                         "0535 Failed setup of fast-path FCP "
6424                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6425                         goto out_destroy_fcp_wq;
6426                 }
6427                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6428                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
6429                                 "parent cq[%d]-id=%d\n",
6430                                 fcp_wqidx,
6431                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6432                                 fcp_cq_index,
6433                                 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6434                 /* Round robin FCP Work Queue's Completion Queue assignment */
6435                 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
6436         }
6437
6438         /*
6439          * Create Receive Queue (RQ)
6440          */
6441         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6442                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6443                                 "0540 Receive Queue not allocated\n");
6444                 goto out_destroy_fcp_wq;
6445         }
6446         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6447                             phba->sli4_hba.els_cq, LPFC_USOL);
6448         if (rc) {
6449                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6450                                 "0541 Failed setup of Receive Queue: "
6451                                 "rc = 0x%x\n", rc);
6452                 goto out_destroy_fcp_wq;
6453         }
6454         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6455                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6456                         "parent cq-id=%d\n",
6457                         phba->sli4_hba.hdr_rq->queue_id,
6458                         phba->sli4_hba.dat_rq->queue_id,
6459                         phba->sli4_hba.els_cq->queue_id);
6460         return 0;
6461
6462 out_destroy_fcp_wq:
6463         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6464                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6465         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6466 out_destroy_mbx_wq:
6467         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6468 out_destroy_fcp_cq:
6469         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6470                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6471         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6472 out_destroy_mbx_cq:
6473         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6474 out_destroy_fp_eq:
6475         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6476                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6477         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6478 out_error:
6479         return rc;
6480 }
6481
6482 /**
6483  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6484  * @phba: pointer to lpfc hba data structure.
6485  *
6486  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6487  * operation.
6488  *
6489  * Return codes
6490  *      0 - successful
6491  *      -ENOMEM - No availble memory
6492  *      -EIO - The mailbox failed to complete successfully.
6493  **/
6494 void
6495 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6496 {
6497         int fcp_qidx;
6498
6499         /* Unset mailbox command work queue */
6500         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6501         /* Unset ELS work queue */
6502         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6503         /* Unset unsolicited receive queue */
6504         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6505         /* Unset FCP work queue */
6506         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6507                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6508         /* Unset mailbox command complete queue */
6509         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6510         /* Unset ELS complete queue */
6511         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6512         /* Unset FCP response complete queue */
6513         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6514                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6515         /* Unset fast-path event queue */
6516         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6517                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6518         /* Unset slow-path event queue */
6519         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6520 }
6521
6522 /**
6523  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6524  * @phba: pointer to lpfc hba data structure.
6525  *
6526  * This routine is invoked to allocate and set up a pool of completion queue
6527  * events. The body of the completion queue event is a completion queue entry
6528  * CQE. For now, this pool is used for the interrupt service routine to queue
6529  * the following HBA completion queue events for the worker thread to process:
6530  *   - Mailbox asynchronous events
6531  *   - Receive queue completion unsolicited events
6532  * Later, this can be used for all the slow-path events.
6533  *
6534  * Return codes
6535  *      0 - successful
6536  *      -ENOMEM - No availble memory
6537  **/
6538 static int
6539 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6540 {
6541         struct lpfc_cq_event *cq_event;
6542         int i;
6543
6544         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6545                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6546                 if (!cq_event)
6547                         goto out_pool_create_fail;
6548                 list_add_tail(&cq_event->list,
6549                               &phba->sli4_hba.sp_cqe_event_pool);
6550         }
6551         return 0;
6552
6553 out_pool_create_fail:
6554         lpfc_sli4_cq_event_pool_destroy(phba);
6555         return -ENOMEM;
6556 }
6557
6558 /**
6559  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6560  * @phba: pointer to lpfc hba data structure.
6561  *
6562  * This routine is invoked to free the pool of completion queue events at
6563  * driver unload time. Note that, it is the responsibility of the driver
6564  * cleanup routine to free all the outstanding completion-queue events
6565  * allocated from this pool back into the pool before invoking this routine
6566  * to destroy the pool.
6567  **/
6568 static void
6569 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6570 {
6571         struct lpfc_cq_event *cq_event, *next_cq_event;
6572
6573         list_for_each_entry_safe(cq_event, next_cq_event,
6574                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
6575                 list_del(&cq_event->list);
6576                 kfree(cq_event);
6577         }
6578 }
6579
6580 /**
6581  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6582  * @phba: pointer to lpfc hba data structure.
6583  *
6584  * This routine is the lock free version of the API invoked to allocate a
6585  * completion-queue event from the free pool.
6586  *
6587  * Return: Pointer to the newly allocated completion-queue event if successful
6588  *         NULL otherwise.
6589  **/
6590 struct lpfc_cq_event *
6591 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6592 {
6593         struct lpfc_cq_event *cq_event = NULL;
6594
6595         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6596                          struct lpfc_cq_event, list);
6597         return cq_event;
6598 }
6599
6600 /**
6601  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6602  * @phba: pointer to lpfc hba data structure.
6603  *
6604  * This routine is the lock version of the API invoked to allocate a
6605  * completion-queue event from the free pool.
6606  *
6607  * Return: Pointer to the newly allocated completion-queue event if successful
6608  *         NULL otherwise.
6609  **/
6610 struct lpfc_cq_event *
6611 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6612 {
6613         struct lpfc_cq_event *cq_event;
6614         unsigned long iflags;
6615
6616         spin_lock_irqsave(&phba->hbalock, iflags);
6617         cq_event = __lpfc_sli4_cq_event_alloc(phba);
6618         spin_unlock_irqrestore(&phba->hbalock, iflags);
6619         return cq_event;
6620 }
6621
6622 /**
6623  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6624  * @phba: pointer to lpfc hba data structure.
6625  * @cq_event: pointer to the completion queue event to be freed.
6626  *
6627  * This routine is the lock free version of the API invoked to release a
6628  * completion-queue event back into the free pool.
6629  **/
6630 void
6631 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6632                              struct lpfc_cq_event *cq_event)
6633 {
6634         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6635 }
6636
6637 /**
6638  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6639  * @phba: pointer to lpfc hba data structure.
6640  * @cq_event: pointer to the completion queue event to be freed.
6641  *
6642  * This routine is the lock version of the API invoked to release a
6643  * completion-queue event back into the free pool.
6644  **/
6645 void
6646 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6647                            struct lpfc_cq_event *cq_event)
6648 {
6649         unsigned long iflags;
6650         spin_lock_irqsave(&phba->hbalock, iflags);
6651         __lpfc_sli4_cq_event_release(phba, cq_event);
6652         spin_unlock_irqrestore(&phba->hbalock, iflags);
6653 }
6654
6655 /**
6656  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6657  * @phba: pointer to lpfc hba data structure.
6658  *
6659  * This routine is to free all the pending completion-queue events to the
6660  * back into the free pool for device reset.
6661  **/
6662 static void
6663 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6664 {
6665         LIST_HEAD(cqelist);
6666         struct lpfc_cq_event *cqe;
6667         unsigned long iflags;
6668
6669         /* Retrieve all the pending WCQEs from pending WCQE lists */
6670         spin_lock_irqsave(&phba->hbalock, iflags);
6671         /* Pending FCP XRI abort events */
6672         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6673                          &cqelist);
6674         /* Pending ELS XRI abort events */
6675         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6676                          &cqelist);
6677         /* Pending asynnc events */
6678         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6679                          &cqelist);
6680         spin_unlock_irqrestore(&phba->hbalock, iflags);
6681
6682         while (!list_empty(&cqelist)) {
6683                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6684                 lpfc_sli4_cq_event_release(phba, cqe);
6685         }
6686 }
6687
6688 /**
6689  * lpfc_pci_function_reset - Reset pci function.
6690  * @phba: pointer to lpfc hba data structure.
6691  *
6692  * This routine is invoked to request a PCI function reset. It will destroys
6693  * all resources assigned to the PCI function which originates this request.
6694  *
6695  * Return codes
6696  *      0 - successful
6697  *      -ENOMEM - No availble memory
6698  *      -EIO - The mailbox failed to complete successfully.
6699  **/
6700 int
6701 lpfc_pci_function_reset(struct lpfc_hba *phba)
6702 {
6703         LPFC_MBOXQ_t *mboxq;
6704         uint32_t rc = 0, if_type;
6705         uint32_t shdr_status, shdr_add_status;
6706         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
6707         union lpfc_sli4_cfg_shdr *shdr;
6708         struct lpfc_register reg_data;
6709
6710         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6711         switch (if_type) {
6712         case LPFC_SLI_INTF_IF_TYPE_0:
6713                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6714                                                        GFP_KERNEL);
6715                 if (!mboxq) {
6716                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6717                                         "0494 Unable to allocate memory for "
6718                                         "issuing SLI_FUNCTION_RESET mailbox "
6719                                         "command\n");
6720                         return -ENOMEM;
6721                 }
6722
6723                 /* Setup PCI function reset mailbox-ioctl command */
6724                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6725                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6726                                  LPFC_SLI4_MBX_EMBED);
6727                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6728                 shdr = (union lpfc_sli4_cfg_shdr *)
6729                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6730                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6731                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6732                                          &shdr->response);
6733                 if (rc != MBX_TIMEOUT)
6734                         mempool_free(mboxq, phba->mbox_mem_pool);
6735                 if (shdr_status || shdr_add_status || rc) {
6736                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6737                                         "0495 SLI_FUNCTION_RESET mailbox "
6738                                         "failed with status x%x add_status x%x,"
6739                                         " mbx status x%x\n",
6740                                         shdr_status, shdr_add_status, rc);
6741                         rc = -ENXIO;
6742                 }
6743                 break;
6744         case LPFC_SLI_INTF_IF_TYPE_2:
6745                 for (num_resets = 0;
6746                      num_resets < MAX_IF_TYPE_2_RESETS;
6747                      num_resets++) {
6748                         reg_data.word0 = 0;
6749                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
6750                                LPFC_SLIPORT_LITTLE_ENDIAN);
6751                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
6752                                LPFC_SLIPORT_INIT_PORT);
6753                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
6754                                CTRLregaddr);
6755
6756                         /*
6757                          * Poll the Port Status Register and wait for RDY for
6758                          * up to 10 seconds.  If the port doesn't respond, treat
6759                          * it as an error.  If the port responds with RN, start
6760                          * the loop again.
6761                          */
6762                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
6763                                 reg_data.word0 =
6764                                         readl(phba->sli4_hba.u.if_type2.
6765                                               STATUSregaddr);
6766                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
6767                                         break;
6768                                 if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
6769                                         reset_again++;
6770                                         break;
6771                                 }
6772                                 msleep(10);
6773                         }
6774
6775                         /*
6776                          * If the port responds to the init request with
6777                          * reset needed, delay for a bit and restart the loop.
6778                          */
6779                         if (reset_again) {
6780                                 msleep(10);
6781                                 reset_again = 0;
6782                                 continue;
6783                         }
6784
6785                         /* Detect any port errors. */
6786                         reg_data.word0 = readl(phba->sli4_hba.u.if_type2.
6787                                                STATUSregaddr);
6788                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
6789                             (rdy_chk >= 1000)) {
6790                                 phba->work_status[0] = readl(
6791                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
6792                                 phba->work_status[1] = readl(
6793                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
6794                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6795                                         "2890 Port Error Detected "
6796                                         "during Port Reset: "
6797                                         "port status reg 0x%x, "
6798                                         "error 1=0x%x, error 2=0x%x\n",
6799                                         reg_data.word0,
6800                                         phba->work_status[0],
6801                                         phba->work_status[1]);
6802                                 rc = -ENODEV;
6803                         }
6804
6805                         /*
6806                          * Terminate the outer loop provided the Port indicated
6807                          * ready within 10 seconds.
6808                          */
6809                         if (rdy_chk < 1000)
6810                                 break;
6811                 }
6812                 break;
6813         case LPFC_SLI_INTF_IF_TYPE_1:
6814         default:
6815                 break;
6816         }
6817
6818         /* Catch the not-ready port failure after a port reset. */
6819         if (num_resets >= MAX_IF_TYPE_2_RESETS)
6820                 rc = -ENODEV;
6821
6822         return rc;
6823 }
6824
6825 /**
6826  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6827  * @phba: pointer to lpfc hba data structure.
6828  * @cnt: number of nop mailbox commands to send.
6829  *
6830  * This routine is invoked to send a number @cnt of NOP mailbox command and
6831  * wait for each command to complete.
6832  *
6833  * Return: the number of NOP mailbox command completed.
6834  **/
6835 static int
6836 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
6837 {
6838         LPFC_MBOXQ_t *mboxq;
6839         int length, cmdsent;
6840         uint32_t mbox_tmo;
6841         uint32_t rc = 0;
6842         uint32_t shdr_status, shdr_add_status;
6843         union lpfc_sli4_cfg_shdr *shdr;
6844
6845         if (cnt == 0) {
6846                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6847                                 "2518 Requested to send 0 NOP mailbox cmd\n");
6848                 return cnt;
6849         }
6850
6851         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6852         if (!mboxq) {
6853                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6854                                 "2519 Unable to allocate memory for issuing "
6855                                 "NOP mailbox command\n");
6856                 return 0;
6857         }
6858
6859         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6860         length = (sizeof(struct lpfc_mbx_nop) -
6861                   sizeof(struct lpfc_sli4_cfg_mhdr));
6862         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6863                          LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
6864
6865         mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6866         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
6867                 if (!phba->sli4_hba.intr_enable)
6868                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6869                 else
6870                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
6871                 if (rc == MBX_TIMEOUT)
6872                         break;
6873                 /* Check return status */
6874                 shdr = (union lpfc_sli4_cfg_shdr *)
6875                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6876                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6877                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6878                                          &shdr->response);
6879                 if (shdr_status || shdr_add_status || rc) {
6880                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6881                                         "2520 NOP mailbox command failed "
6882                                         "status x%x add_status x%x mbx "
6883                                         "status x%x\n", shdr_status,
6884                                         shdr_add_status, rc);
6885                         break;
6886                 }
6887         }
6888
6889         if (rc != MBX_TIMEOUT)
6890                 mempool_free(mboxq, phba->mbox_mem_pool);
6891
6892         return cmdsent;
6893 }
6894
6895 /**
6896  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6897  * @phba: pointer to lpfc hba data structure.
6898  *
6899  * This routine is invoked to set up the PCI device memory space for device
6900  * with SLI-4 interface spec.
6901  *
6902  * Return codes
6903  *      0 - successful
6904  *      other values - error
6905  **/
6906 static int
6907 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6908 {
6909         struct pci_dev *pdev;
6910         unsigned long bar0map_len, bar1map_len, bar2map_len;
6911         int error = -ENODEV;
6912         uint32_t if_type;
6913
6914         /* Obtain PCI device reference */
6915         if (!phba->pcidev)
6916                 return error;
6917         else
6918                 pdev = phba->pcidev;
6919
6920         /* Set the device DMA mask size */
6921         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6922          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6923                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6924                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6925                         return error;
6926                 }
6927         }
6928
6929         /*
6930          * The BARs and register set definitions and offset locations are
6931          * dependent on the if_type.
6932          */
6933         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
6934                                   &phba->sli4_hba.sli_intf.word0)) {
6935                 return error;
6936         }
6937
6938         /* There is no SLI3 failback for SLI4 devices. */
6939         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
6940             LPFC_SLI_INTF_VALID) {
6941                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6942                                 "2894 SLI_INTF reg contents invalid "
6943                                 "sli_intf reg 0x%x\n",
6944                                 phba->sli4_hba.sli_intf.word0);
6945                 return error;
6946         }
6947
6948         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6949         /*
6950          * Get the bus address of SLI4 device Bar regions and the
6951          * number of bytes required by each mapping. The mapping of the
6952          * particular PCI BARs regions is dependent on the type of
6953          * SLI4 device.
6954          */
6955         if (pci_resource_start(pdev, 0)) {
6956                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6957                 bar0map_len = pci_resource_len(pdev, 0);
6958
6959                 /*
6960                  * Map SLI4 PCI Config Space Register base to a kernel virtual
6961                  * addr
6962                  */
6963                 phba->sli4_hba.conf_regs_memmap_p =
6964                         ioremap(phba->pci_bar0_map, bar0map_len);
6965                 if (!phba->sli4_hba.conf_regs_memmap_p) {
6966                         dev_printk(KERN_ERR, &pdev->dev,
6967                                    "ioremap failed for SLI4 PCI config "
6968                                    "registers.\n");
6969                         goto out;
6970                 }
6971                 /* Set up BAR0 PCI config space register memory map */
6972                 lpfc_sli4_bar0_register_memmap(phba, if_type);
6973         } else {
6974                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
6975                 bar0map_len = pci_resource_len(pdev, 1);
6976                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
6977                         dev_printk(KERN_ERR, &pdev->dev,
6978                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
6979                         goto out;
6980                 }
6981                 phba->sli4_hba.conf_regs_memmap_p =
6982                                 ioremap(phba->pci_bar0_map, bar0map_len);
6983                 if (!phba->sli4_hba.conf_regs_memmap_p) {
6984                         dev_printk(KERN_ERR, &pdev->dev,
6985                                 "ioremap failed for SLI4 PCI config "
6986                                 "registers.\n");
6987                                 goto out;
6988                 }
6989                 lpfc_sli4_bar0_register_memmap(phba, if_type);
6990         }
6991
6992         if (pci_resource_start(pdev, 2)) {
6993                 /*
6994                  * Map SLI4 if type 0 HBA Control Register base to a kernel
6995                  * virtual address and setup the registers.
6996                  */
6997                 phba->pci_bar1_map = pci_resource_start(pdev, 2);
6998                 bar1map_len = pci_resource_len(pdev, 2);
6999                 phba->sli4_hba.ctrl_regs_memmap_p =
7000                                 ioremap(phba->pci_bar1_map, bar1map_len);
7001                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7002                         dev_printk(KERN_ERR, &pdev->dev,
7003                            "ioremap failed for SLI4 HBA control registers.\n");
7004                         goto out_iounmap_conf;
7005                 }
7006                 lpfc_sli4_bar1_register_memmap(phba);
7007         }
7008
7009         if (pci_resource_start(pdev, 4)) {
7010                 /*
7011                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7012                  * virtual address and setup the registers.
7013                  */
7014                 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7015                 bar2map_len = pci_resource_len(pdev, 4);
7016                 phba->sli4_hba.drbl_regs_memmap_p =
7017                                 ioremap(phba->pci_bar2_map, bar2map_len);
7018                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7019                         dev_printk(KERN_ERR, &pdev->dev,
7020                            "ioremap failed for SLI4 HBA doorbell registers.\n");
7021                         goto out_iounmap_ctrl;
7022                 }
7023                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7024                 if (error)
7025                         goto out_iounmap_all;
7026         }
7027
7028         return 0;
7029
7030 out_iounmap_all:
7031         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7032 out_iounmap_ctrl:
7033         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7034 out_iounmap_conf:
7035         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7036 out:
7037         return error;
7038 }
7039
7040 /**
7041  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7042  * @phba: pointer to lpfc hba data structure.
7043  *
7044  * This routine is invoked to unset the PCI device memory space for device
7045  * with SLI-4 interface spec.
7046  **/
7047 static void
7048 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7049 {
7050         struct pci_dev *pdev;
7051
7052         /* Obtain PCI device reference */
7053         if (!phba->pcidev)
7054                 return;
7055         else
7056                 pdev = phba->pcidev;
7057
7058         /* Free coherent DMA memory allocated */
7059
7060         /* Unmap I/O memory space */
7061         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7062         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7063         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7064
7065         return;
7066 }
7067
7068 /**
7069  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7070  * @phba: pointer to lpfc hba data structure.
7071  *
7072  * This routine is invoked to enable the MSI-X interrupt vectors to device
7073  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7074  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7075  * invoked, enables either all or nothing, depending on the current
7076  * availability of PCI vector resources. The device driver is responsible
7077  * for calling the individual request_irq() to register each MSI-X vector
7078  * with a interrupt handler, which is done in this function. Note that
7079  * later when device is unloading, the driver should always call free_irq()
7080  * on all MSI-X vectors it has done request_irq() on before calling
7081  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7082  * will be left with MSI-X enabled and leaks its vectors.
7083  *
7084  * Return codes
7085  *   0 - successful
7086  *   other values - error
7087  **/
7088 static int
7089 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7090 {
7091         int rc, i;
7092         LPFC_MBOXQ_t *pmb;
7093
7094         /* Set up MSI-X multi-message vectors */
7095         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7096                 phba->msix_entries[i].entry = i;
7097
7098         /* Configure MSI-X capability structure */
7099         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7100                                 ARRAY_SIZE(phba->msix_entries));
7101         if (rc) {
7102                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7103                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
7104                 goto msi_fail_out;
7105         }
7106         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7107                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7108                                 "0477 MSI-X entry[%d]: vector=x%x "
7109                                 "message=%d\n", i,
7110                                 phba->msix_entries[i].vector,
7111                                 phba->msix_entries[i].entry);
7112         /*
7113          * Assign MSI-X vectors to interrupt handlers
7114          */
7115
7116         /* vector-0 is associated to slow-path handler */
7117         rc = request_irq(phba->msix_entries[0].vector,
7118                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7119                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
7120         if (rc) {
7121                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7122                                 "0421 MSI-X slow-path request_irq failed "
7123                                 "(%d)\n", rc);
7124                 goto msi_fail_out;
7125         }
7126
7127         /* vector-1 is associated to fast-path handler */
7128         rc = request_irq(phba->msix_entries[1].vector,
7129                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7130                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
7131
7132         if (rc) {
7133                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7134                                 "0429 MSI-X fast-path request_irq failed "
7135                                 "(%d)\n", rc);
7136                 goto irq_fail_out;
7137         }
7138
7139         /*
7140          * Configure HBA MSI-X attention conditions to messages
7141          */
7142         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7143
7144         if (!pmb) {
7145                 rc = -ENOMEM;
7146                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7147                                 "0474 Unable to allocate memory for issuing "
7148                                 "MBOX_CONFIG_MSI command\n");
7149                 goto mem_fail_out;
7150         }
7151         rc = lpfc_config_msi(phba, pmb);
7152         if (rc)
7153                 goto mbx_fail_out;
7154         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7155         if (rc != MBX_SUCCESS) {
7156                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7157                                 "0351 Config MSI mailbox command failed, "
7158                                 "mbxCmd x%x, mbxStatus x%x\n",
7159                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7160                 goto mbx_fail_out;
7161         }
7162
7163         /* Free memory allocated for mailbox command */
7164         mempool_free(pmb, phba->mbox_mem_pool);
7165         return rc;
7166
7167 mbx_fail_out:
7168         /* Free memory allocated for mailbox command */
7169         mempool_free(pmb, phba->mbox_mem_pool);
7170
7171 mem_fail_out:
7172         /* free the irq already requested */
7173         free_irq(phba->msix_entries[1].vector, phba);
7174
7175 irq_fail_out:
7176         /* free the irq already requested */
7177         free_irq(phba->msix_entries[0].vector, phba);
7178
7179 msi_fail_out:
7180         /* Unconfigure MSI-X capability structure */
7181         pci_disable_msix(phba->pcidev);
7182         return rc;
7183 }
7184
7185 /**
7186  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7187  * @phba: pointer to lpfc hba data structure.
7188  *
7189  * This routine is invoked to release the MSI-X vectors and then disable the
7190  * MSI-X interrupt mode to device with SLI-3 interface spec.
7191  **/
7192 static void
7193 lpfc_sli_disable_msix(struct lpfc_hba *phba)
7194 {
7195         int i;
7196
7197         /* Free up MSI-X multi-message vectors */
7198         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7199                 free_irq(phba->msix_entries[i].vector, phba);
7200         /* Disable MSI-X */
7201         pci_disable_msix(phba->pcidev);
7202
7203         return;
7204 }
7205
7206 /**
7207  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7208  * @phba: pointer to lpfc hba data structure.
7209  *
7210  * This routine is invoked to enable the MSI interrupt mode to device with
7211  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7212  * enable the MSI vector. The device driver is responsible for calling the
7213  * request_irq() to register MSI vector with a interrupt the handler, which
7214  * is done in this function.
7215  *
7216  * Return codes
7217  *      0 - successful
7218  *      other values - error
7219  */
7220 static int
7221 lpfc_sli_enable_msi(struct lpfc_hba *phba)
7222 {
7223         int rc;
7224
7225         rc = pci_enable_msi(phba->pcidev);
7226         if (!rc)
7227                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7228                                 "0462 PCI enable MSI mode success.\n");
7229         else {
7230                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7231                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
7232                 return rc;
7233         }
7234
7235         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7236                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7237         if (rc) {
7238                 pci_disable_msi(phba->pcidev);
7239                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7240                                 "0478 MSI request_irq failed (%d)\n", rc);
7241         }
7242         return rc;
7243 }
7244
7245 /**
7246  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7247  * @phba: pointer to lpfc hba data structure.
7248  *
7249  * This routine is invoked to disable the MSI interrupt mode to device with
7250  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7251  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7252  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7253  * its vector.
7254  */
7255 static void
7256 lpfc_sli_disable_msi(struct lpfc_hba *phba)
7257 {
7258         free_irq(phba->pcidev->irq, phba);
7259         pci_disable_msi(phba->pcidev);
7260         return;
7261 }
7262
7263 /**
7264  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7265  * @phba: pointer to lpfc hba data structure.
7266  *
7267  * This routine is invoked to enable device interrupt and associate driver's
7268  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7269  * spec. Depends on the interrupt mode configured to the driver, the driver
7270  * will try to fallback from the configured interrupt mode to an interrupt
7271  * mode which is supported by the platform, kernel, and device in the order
7272  * of:
7273  * MSI-X -> MSI -> IRQ.
7274  *
7275  * Return codes
7276  *   0 - successful
7277  *   other values - error
7278  **/
7279 static uint32_t
7280 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7281 {
7282         uint32_t intr_mode = LPFC_INTR_ERROR;
7283         int retval;
7284
7285         if (cfg_mode == 2) {
7286                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7287                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7288                 if (!retval) {
7289                         /* Now, try to enable MSI-X interrupt mode */
7290                         retval = lpfc_sli_enable_msix(phba);
7291                         if (!retval) {
7292                                 /* Indicate initialization to MSI-X mode */
7293                                 phba->intr_type = MSIX;
7294                                 intr_mode = 2;
7295                         }
7296                 }
7297         }
7298
7299         /* Fallback to MSI if MSI-X initialization failed */
7300         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7301                 retval = lpfc_sli_enable_msi(phba);
7302                 if (!retval) {
7303                         /* Indicate initialization to MSI mode */
7304                         phba->intr_type = MSI;
7305                         intr_mode = 1;
7306                 }
7307         }
7308
7309         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7310         if (phba->intr_type == NONE) {
7311                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7312                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7313                 if (!retval) {
7314                         /* Indicate initialization to INTx mode */
7315                         phba->intr_type = INTx;
7316                         intr_mode = 0;
7317                 }
7318         }
7319         return intr_mode;
7320 }
7321
7322 /**
7323  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7324  * @phba: pointer to lpfc hba data structure.
7325  *
7326  * This routine is invoked to disable device interrupt and disassociate the
7327  * driver's interrupt handler(s) from interrupt vector(s) to device with
7328  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7329  * release the interrupt vector(s) for the message signaled interrupt.
7330  **/
7331 static void
7332 lpfc_sli_disable_intr(struct lpfc_hba *phba)
7333 {
7334         /* Disable the currently initialized interrupt mode */
7335         if (phba->intr_type == MSIX)
7336                 lpfc_sli_disable_msix(phba);
7337         else if (phba->intr_type == MSI)
7338                 lpfc_sli_disable_msi(phba);
7339         else if (phba->intr_type == INTx)
7340                 free_irq(phba->pcidev->irq, phba);
7341
7342         /* Reset interrupt management states */
7343         phba->intr_type = NONE;
7344         phba->sli.slistat.sli_intr = 0;
7345
7346         return;
7347 }
7348
7349 /**
7350  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7351  * @phba: pointer to lpfc hba data structure.
7352  *
7353  * This routine is invoked to enable the MSI-X interrupt vectors to device
7354  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7355  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7356  * enables either all or nothing, depending on the current availability of
7357  * PCI vector resources. The device driver is responsible for calling the
7358  * individual request_irq() to register each MSI-X vector with a interrupt
7359  * handler, which is done in this function. Note that later when device is
7360  * unloading, the driver should always call free_irq() on all MSI-X vectors
7361  * it has done request_irq() on before calling pci_disable_msix(). Failure
7362  * to do so results in a BUG_ON() and a device will be left with MSI-X
7363  * enabled and leaks its vectors.
7364  *
7365  * Return codes
7366  * 0 - successful
7367  * other values - error
7368  **/
7369 static int
7370 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7371 {
7372         int vectors, rc, index;
7373
7374         /* Set up MSI-X multi-message vectors */
7375         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7376                 phba->sli4_hba.msix_entries[index].entry = index;
7377
7378         /* Configure MSI-X capability structure */
7379         vectors = phba->sli4_hba.cfg_eqn;
7380 enable_msix_vectors:
7381         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
7382                              vectors);
7383         if (rc > 1) {
7384                 vectors = rc;
7385                 goto enable_msix_vectors;
7386         } else if (rc) {
7387                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7388                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
7389                 goto msi_fail_out;
7390         }
7391
7392         /* Log MSI-X vector assignment */
7393         for (index = 0; index < vectors; index++)
7394                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7395                                 "0489 MSI-X entry[%d]: vector=x%x "
7396                                 "message=%d\n", index,
7397                                 phba->sli4_hba.msix_entries[index].vector,
7398                                 phba->sli4_hba.msix_entries[index].entry);
7399         /*
7400          * Assign MSI-X vectors to interrupt handlers
7401          */
7402
7403         /* The first vector must associated to slow-path handler for MQ */
7404         rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7405                          &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7406                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
7407         if (rc) {
7408                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7409                                 "0485 MSI-X slow-path request_irq failed "
7410                                 "(%d)\n", rc);
7411                 goto msi_fail_out;
7412         }
7413
7414         /* The rest of the vector(s) are associated to fast-path handler(s) */
7415         for (index = 1; index < vectors; index++) {
7416                 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7417                 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7418                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7419                                  &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7420                                  LPFC_FP_DRIVER_HANDLER_NAME,
7421                                  &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7422                 if (rc) {
7423                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7424                                         "0486 MSI-X fast-path (%d) "
7425                                         "request_irq failed (%d)\n", index, rc);
7426                         goto cfg_fail_out;
7427                 }
7428         }
7429         phba->sli4_hba.msix_vec_nr = vectors;
7430
7431         return rc;
7432
7433 cfg_fail_out:
7434         /* free the irq already requested */
7435         for (--index; index >= 1; index--)
7436                 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7437                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7438
7439         /* free the irq already requested */
7440         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7441
7442 msi_fail_out:
7443         /* Unconfigure MSI-X capability structure */
7444         pci_disable_msix(phba->pcidev);
7445         return rc;
7446 }
7447
7448 /**
7449  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7450  * @phba: pointer to lpfc hba data structure.
7451  *
7452  * This routine is invoked to release the MSI-X vectors and then disable the
7453  * MSI-X interrupt mode to device with SLI-4 interface spec.
7454  **/
7455 static void
7456 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7457 {
7458         int index;
7459
7460         /* Free up MSI-X multi-message vectors */
7461         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7462
7463         for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7464                 free_irq(phba->sli4_hba.msix_entries[index].vector,
7465                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7466
7467         /* Disable MSI-X */
7468         pci_disable_msix(phba->pcidev);
7469
7470         return;
7471 }
7472
7473 /**
7474  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7475  * @phba: pointer to lpfc hba data structure.
7476  *
7477  * This routine is invoked to enable the MSI interrupt mode to device with
7478  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7479  * to enable the MSI vector. The device driver is responsible for calling
7480  * the request_irq() to register MSI vector with a interrupt the handler,
7481  * which is done in this function.
7482  *
7483  * Return codes
7484  *      0 - successful
7485  *      other values - error
7486  **/
7487 static int
7488 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7489 {
7490         int rc, index;
7491
7492         rc = pci_enable_msi(phba->pcidev);
7493         if (!rc)
7494                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7495                                 "0487 PCI enable MSI mode success.\n");
7496         else {
7497                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7498                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
7499                 return rc;
7500         }
7501
7502         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7503                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7504         if (rc) {
7505                 pci_disable_msi(phba->pcidev);
7506                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7507                                 "0490 MSI request_irq failed (%d)\n", rc);
7508                 return rc;
7509         }
7510
7511         for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7512                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7513                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7514         }
7515
7516         return 0;
7517 }
7518
7519 /**
7520  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7521  * @phba: pointer to lpfc hba data structure.
7522  *
7523  * This routine is invoked to disable the MSI interrupt mode to device with
7524  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7525  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7526  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7527  * its vector.
7528  **/
7529 static void
7530 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7531 {
7532         free_irq(phba->pcidev->irq, phba);
7533         pci_disable_msi(phba->pcidev);
7534         return;
7535 }
7536
7537 /**
7538  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7539  * @phba: pointer to lpfc hba data structure.
7540  *
7541  * This routine is invoked to enable device interrupt and associate driver's
7542  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7543  * interface spec. Depends on the interrupt mode configured to the driver,
7544  * the driver will try to fallback from the configured interrupt mode to an
7545  * interrupt mode which is supported by the platform, kernel, and device in
7546  * the order of:
7547  * MSI-X -> MSI -> IRQ.
7548  *
7549  * Return codes
7550  *      0 - successful
7551  *      other values - error
7552  **/
7553 static uint32_t
7554 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7555 {
7556         uint32_t intr_mode = LPFC_INTR_ERROR;
7557         int retval, index;
7558
7559         if (cfg_mode == 2) {
7560                 /* Preparation before conf_msi mbox cmd */
7561                 retval = 0;
7562                 if (!retval) {
7563                         /* Now, try to enable MSI-X interrupt mode */
7564                         retval = lpfc_sli4_enable_msix(phba);
7565                         if (!retval) {
7566                                 /* Indicate initialization to MSI-X mode */
7567                                 phba->intr_type = MSIX;
7568                                 intr_mode = 2;
7569                         }
7570                 }
7571         }
7572
7573         /* Fallback to MSI if MSI-X initialization failed */
7574         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7575                 retval = lpfc_sli4_enable_msi(phba);
7576                 if (!retval) {
7577                         /* Indicate initialization to MSI mode */
7578                         phba->intr_type = MSI;
7579                         intr_mode = 1;
7580                 }
7581         }
7582
7583         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7584         if (phba->intr_type == NONE) {
7585                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7586                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7587                 if (!retval) {
7588                         /* Indicate initialization to INTx mode */
7589                         phba->intr_type = INTx;
7590                         intr_mode = 0;
7591                         for (index = 0; index < phba->cfg_fcp_eq_count;
7592                              index++) {
7593                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7594                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7595                         }
7596                 }
7597         }
7598         return intr_mode;
7599 }
7600
7601 /**
7602  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7603  * @phba: pointer to lpfc hba data structure.
7604  *
7605  * This routine is invoked to disable device interrupt and disassociate
7606  * the driver's interrupt handler(s) from interrupt vector(s) to device
7607  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7608  * will release the interrupt vector(s) for the message signaled interrupt.
7609  **/
7610 static void
7611 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7612 {
7613         /* Disable the currently initialized interrupt mode */
7614         if (phba->intr_type == MSIX)
7615                 lpfc_sli4_disable_msix(phba);
7616         else if (phba->intr_type == MSI)
7617                 lpfc_sli4_disable_msi(phba);
7618         else if (phba->intr_type == INTx)
7619                 free_irq(phba->pcidev->irq, phba);
7620
7621         /* Reset interrupt management states */
7622         phba->intr_type = NONE;
7623         phba->sli.slistat.sli_intr = 0;
7624
7625         return;
7626 }
7627
7628 /**
7629  * lpfc_unset_hba - Unset SLI3 hba device initialization
7630  * @phba: pointer to lpfc hba data structure.
7631  *
7632  * This routine is invoked to unset the HBA device initialization steps to
7633  * a device with SLI-3 interface spec.
7634  **/
7635 static void
7636 lpfc_unset_hba(struct lpfc_hba *phba)
7637 {
7638         struct lpfc_vport *vport = phba->pport;
7639         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7640
7641         spin_lock_irq(shost->host_lock);
7642         vport->load_flag |= FC_UNLOADING;
7643         spin_unlock_irq(shost->host_lock);
7644
7645         lpfc_stop_hba_timers(phba);
7646
7647         phba->pport->work_port_events = 0;
7648
7649         lpfc_sli_hba_down(phba);
7650
7651         lpfc_sli_brdrestart(phba);
7652
7653         lpfc_sli_disable_intr(phba);
7654
7655         return;
7656 }
7657
7658 /**
7659  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7660  * @phba: pointer to lpfc hba data structure.
7661  *
7662  * This routine is invoked to unset the HBA device initialization steps to
7663  * a device with SLI-4 interface spec.
7664  **/
7665 static void
7666 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7667 {
7668         struct lpfc_vport *vport = phba->pport;
7669         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7670
7671         spin_lock_irq(shost->host_lock);
7672         vport->load_flag |= FC_UNLOADING;
7673         spin_unlock_irq(shost->host_lock);
7674
7675         phba->pport->work_port_events = 0;
7676
7677         /* Stop the SLI4 device port */
7678         lpfc_stop_port(phba);
7679
7680         lpfc_sli4_disable_intr(phba);
7681
7682         /* Reset SLI4 HBA FCoE function */
7683         lpfc_pci_function_reset(phba);
7684
7685         return;
7686 }
7687
7688 /**
7689  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7690  * @phba: Pointer to HBA context object.
7691  *
7692  * This function is called in the SLI4 code path to wait for completion
7693  * of device's XRIs exchange busy. It will check the XRI exchange busy
7694  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7695  * that, it will check the XRI exchange busy on outstanding FCP and ELS
7696  * I/Os every 30 seconds, log error message, and wait forever. Only when
7697  * all XRI exchange busy complete, the driver unload shall proceed with
7698  * invoking the function reset ioctl mailbox command to the CNA and the
7699  * the rest of the driver unload resource release.
7700  **/
7701 static void
7702 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
7703 {
7704         int wait_time = 0;
7705         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7706         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7707
7708         while (!fcp_xri_cmpl || !els_xri_cmpl) {
7709                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
7710                         if (!fcp_xri_cmpl)
7711                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7712                                                 "2877 FCP XRI exchange busy "
7713                                                 "wait time: %d seconds.\n",
7714                                                 wait_time/1000);
7715                         if (!els_xri_cmpl)
7716                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7717                                                 "2878 ELS XRI exchange busy "
7718                                                 "wait time: %d seconds.\n",
7719                                                 wait_time/1000);
7720                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
7721                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
7722                 } else {
7723                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
7724                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
7725                 }
7726                 fcp_xri_cmpl =
7727                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7728                 els_xri_cmpl =
7729                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7730         }
7731 }
7732
7733 /**
7734  * lpfc_sli4_hba_unset - Unset the fcoe hba
7735  * @phba: Pointer to HBA context object.
7736  *
7737  * This function is called in the SLI4 code path to reset the HBA's FCoE
7738  * function. The caller is not required to hold any lock. This routine
7739  * issues PCI function reset mailbox command to reset the FCoE function.
7740  * At the end of the function, it calls lpfc_hba_down_post function to
7741  * free any pending commands.
7742  **/
7743 static void
7744 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7745 {
7746         int wait_cnt = 0;
7747         LPFC_MBOXQ_t *mboxq;
7748
7749         lpfc_stop_hba_timers(phba);
7750         phba->sli4_hba.intr_enable = 0;
7751
7752         /*
7753          * Gracefully wait out the potential current outstanding asynchronous
7754          * mailbox command.
7755          */
7756
7757         /* First, block any pending async mailbox command from posted */
7758         spin_lock_irq(&phba->hbalock);
7759         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7760         spin_unlock_irq(&phba->hbalock);
7761         /* Now, trying to wait it out if we can */
7762         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7763                 msleep(10);
7764                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
7765                         break;
7766         }
7767         /* Forcefully release the outstanding mailbox command if timed out */
7768         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7769                 spin_lock_irq(&phba->hbalock);
7770                 mboxq = phba->sli.mbox_active;
7771                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7772                 __lpfc_mbox_cmpl_put(phba, mboxq);
7773                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7774                 phba->sli.mbox_active = NULL;
7775                 spin_unlock_irq(&phba->hbalock);
7776         }
7777
7778         /* Abort all iocbs associated with the hba */
7779         lpfc_sli_hba_iocb_abort(phba);
7780
7781         /* Wait for completion of device XRI exchange busy */
7782         lpfc_sli4_xri_exchange_busy_wait(phba);
7783
7784         /* Disable PCI subsystem interrupt */
7785         lpfc_sli4_disable_intr(phba);
7786
7787         /* Stop kthread signal shall trigger work_done one more time */
7788         kthread_stop(phba->worker_thread);
7789
7790         /* Reset SLI4 HBA FCoE function */
7791         lpfc_pci_function_reset(phba);
7792
7793         /* Stop the SLI4 device port */
7794         phba->pport->work_port_events = 0;
7795 }
7796
7797  /**
7798  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7799  * @phba: Pointer to HBA context object.
7800  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7801  *
7802  * This function is called in the SLI4 code path to read the port's
7803  * sli4 capabilities.
7804  *
7805  * This function may be be called from any context that can block-wait
7806  * for the completion.  The expectation is that this routine is called
7807  * typically from probe_one or from the online routine.
7808  **/
7809 int
7810 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7811 {
7812         int rc;
7813         struct lpfc_mqe *mqe;
7814         struct lpfc_pc_sli4_params *sli4_params;
7815         uint32_t mbox_tmo;
7816
7817         rc = 0;
7818         mqe = &mboxq->u.mqe;
7819
7820         /* Read the port's SLI4 Parameters port capabilities */
7821         lpfc_pc_sli4_params(mboxq);
7822         if (!phba->sli4_hba.intr_enable)
7823                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7824         else {
7825                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
7826                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7827         }
7828
7829         if (unlikely(rc))
7830                 return 1;
7831
7832         sli4_params = &phba->sli4_hba.pc_sli4_params;
7833         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
7834         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
7835         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
7836         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
7837                                              &mqe->un.sli4_params);
7838         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
7839                                              &mqe->un.sli4_params);
7840         sli4_params->proto_types = mqe->un.sli4_params.word3;
7841         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
7842         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
7843         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
7844         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
7845         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
7846         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
7847         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
7848         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
7849         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
7850         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
7851         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
7852         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
7853         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
7854         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
7855         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
7856         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
7857         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
7858         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
7859         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
7860         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
7861         return rc;
7862 }
7863
7864 /**
7865  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
7866  * @phba: Pointer to HBA context object.
7867  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7868  *
7869  * This function is called in the SLI4 code path to read the port's
7870  * sli4 capabilities.
7871  *
7872  * This function may be be called from any context that can block-wait
7873  * for the completion.  The expectation is that this routine is called
7874  * typically from probe_one or from the online routine.
7875  **/
7876 int
7877 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7878 {
7879         int rc;
7880         struct lpfc_mqe *mqe = &mboxq->u.mqe;
7881         struct lpfc_pc_sli4_params *sli4_params;
7882         int length;
7883         struct lpfc_sli4_parameters *mbx_sli4_parameters;
7884
7885         /* Read the port's SLI4 Config Parameters */
7886         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
7887                   sizeof(struct lpfc_sli4_cfg_mhdr));
7888         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7889                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
7890                          length, LPFC_SLI4_MBX_EMBED);
7891         if (!phba->sli4_hba.intr_enable)
7892                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7893         else
7894                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq,
7895                         lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG));
7896         if (unlikely(rc))
7897                 return rc;
7898         sli4_params = &phba->sli4_hba.pc_sli4_params;
7899         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
7900         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
7901         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
7902         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
7903         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
7904                                              mbx_sli4_parameters);
7905         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
7906                                              mbx_sli4_parameters);
7907         if (bf_get(cfg_phwq, mbx_sli4_parameters))
7908                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
7909         else
7910                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
7911         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
7912         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
7913         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
7914         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
7915         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
7916         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
7917         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
7918                                             mbx_sli4_parameters);
7919         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
7920                                            mbx_sli4_parameters);
7921         return 0;
7922 }
7923
7924 /**
7925  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7926  * @pdev: pointer to PCI device
7927  * @pid: pointer to PCI device identifier
7928  *
7929  * This routine is to be called to attach a device with SLI-3 interface spec
7930  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7931  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7932  * information of the device and driver to see if the driver state that it can
7933  * support this kind of device. If the match is successful, the driver core
7934  * invokes this routine. If this routine determines it can claim the HBA, it
7935  * does all the initialization that it needs to do to handle the HBA properly.
7936  *
7937  * Return code
7938  *      0 - driver can claim the device
7939  *      negative value - driver can not claim the device
7940  **/
7941 static int __devinit
7942 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
7943 {
7944         struct lpfc_hba   *phba;
7945         struct lpfc_vport *vport = NULL;
7946         struct Scsi_Host  *shost = NULL;
7947         int error;
7948         uint32_t cfg_mode, intr_mode;
7949
7950         /* Allocate memory for HBA structure */
7951         phba = lpfc_hba_alloc(pdev);
7952         if (!phba)
7953                 return -ENOMEM;
7954
7955         /* Perform generic PCI device enabling operation */
7956         error = lpfc_enable_pci_dev(phba);
7957         if (error) {
7958                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7959                                 "1401 Failed to enable pci device.\n");
7960                 goto out_free_phba;
7961         }
7962
7963         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7964         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
7965         if (error)
7966                 goto out_disable_pci_dev;
7967
7968         /* Set up SLI-3 specific device PCI memory space */
7969         error = lpfc_sli_pci_mem_setup(phba);
7970         if (error) {
7971                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7972                                 "1402 Failed to set up pci memory space.\n");
7973                 goto out_disable_pci_dev;
7974         }
7975
7976         /* Set up phase-1 common device driver resources */
7977         error = lpfc_setup_driver_resource_phase1(phba);
7978         if (error) {
7979                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7980                                 "1403 Failed to set up driver resource.\n");
7981                 goto out_unset_pci_mem_s3;
7982         }
7983
7984         /* Set up SLI-3 specific device driver resources */
7985         error = lpfc_sli_driver_resource_setup(phba);
7986         if (error) {
7987                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7988                                 "1404 Failed to set up driver resource.\n");
7989                 goto out_unset_pci_mem_s3;
7990         }
7991
7992         /* Initialize and populate the iocb list per host */
7993         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
7994         if (error) {
7995                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7996                                 "1405 Failed to initialize iocb list.\n");
7997                 goto out_unset_driver_resource_s3;
7998         }
7999
8000         /* Set up common device driver resources */
8001         error = lpfc_setup_driver_resource_phase2(phba);
8002         if (error) {
8003                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8004                                 "1406 Failed to set up driver resource.\n");
8005                 goto out_free_iocb_list;
8006         }
8007
8008         /* Create SCSI host to the physical port */
8009         error = lpfc_create_shost(phba);
8010         if (error) {
8011                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8012                                 "1407 Failed to create scsi host.\n");
8013                 goto out_unset_driver_resource;
8014         }
8015
8016         /* Configure sysfs attributes */
8017         vport = phba->pport;
8018         error = lpfc_alloc_sysfs_attr(vport);
8019         if (error) {
8020                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8021                                 "1476 Failed to allocate sysfs attr\n");
8022                 goto out_destroy_shost;
8023         }
8024
8025         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8026         /* Now, trying to enable interrupt and bring up the device */
8027         cfg_mode = phba->cfg_use_msi;
8028         while (true) {
8029                 /* Put device to a known state before enabling interrupt */
8030                 lpfc_stop_port(phba);
8031                 /* Configure and enable interrupt */
8032                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8033                 if (intr_mode == LPFC_INTR_ERROR) {
8034                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8035                                         "0431 Failed to enable interrupt.\n");
8036                         error = -ENODEV;
8037                         goto out_free_sysfs_attr;
8038                 }
8039                 /* SLI-3 HBA setup */
8040                 if (lpfc_sli_hba_setup(phba)) {
8041                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8042                                         "1477 Failed to set up hba\n");
8043                         error = -ENODEV;
8044                         goto out_remove_device;
8045                 }
8046
8047                 /* Wait 50ms for the interrupts of previous mailbox commands */
8048                 msleep(50);
8049                 /* Check active interrupts on message signaled interrupts */
8050                 if (intr_mode == 0 ||
8051                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8052                         /* Log the current active interrupt mode */
8053                         phba->intr_mode = intr_mode;
8054                         lpfc_log_intr_mode(phba, intr_mode);
8055                         break;
8056                 } else {
8057                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8058                                         "0447 Configure interrupt mode (%d) "
8059                                         "failed active interrupt test.\n",
8060                                         intr_mode);
8061                         /* Disable the current interrupt mode */
8062                         lpfc_sli_disable_intr(phba);
8063                         /* Try next level of interrupt mode */
8064                         cfg_mode = --intr_mode;
8065                 }
8066         }
8067
8068         /* Perform post initialization setup */
8069         lpfc_post_init_setup(phba);
8070
8071         /* Check if there are static vports to be created. */
8072         lpfc_create_static_vport(phba);
8073
8074         return 0;
8075
8076 out_remove_device:
8077         lpfc_unset_hba(phba);
8078 out_free_sysfs_attr:
8079         lpfc_free_sysfs_attr(vport);
8080 out_destroy_shost:
8081         lpfc_destroy_shost(phba);
8082 out_unset_driver_resource:
8083         lpfc_unset_driver_resource_phase2(phba);
8084 out_free_iocb_list:
8085         lpfc_free_iocb_list(phba);
8086 out_unset_driver_resource_s3:
8087         lpfc_sli_driver_resource_unset(phba);
8088 out_unset_pci_mem_s3:
8089         lpfc_sli_pci_mem_unset(phba);
8090 out_disable_pci_dev:
8091         lpfc_disable_pci_dev(phba);
8092         if (shost)
8093                 scsi_host_put(shost);
8094 out_free_phba:
8095         lpfc_hba_free(phba);
8096         return error;
8097 }
8098
8099 /**
8100  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8101  * @pdev: pointer to PCI device
8102  *
8103  * This routine is to be called to disattach a device with SLI-3 interface
8104  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8105  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8106  * device to be removed from the PCI subsystem properly.
8107  **/
8108 static void __devexit
8109 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8110 {
8111         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
8112         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8113         struct lpfc_vport **vports;
8114         struct lpfc_hba   *phba = vport->phba;
8115         int i;
8116         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8117
8118         spin_lock_irq(&phba->hbalock);
8119         vport->load_flag |= FC_UNLOADING;
8120         spin_unlock_irq(&phba->hbalock);
8121
8122         lpfc_free_sysfs_attr(vport);
8123
8124         /* Release all the vports against this physical port */
8125         vports = lpfc_create_vport_work_array(phba);
8126         if (vports != NULL)
8127                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8128                         fc_vport_terminate(vports[i]->fc_vport);
8129         lpfc_destroy_vport_work_array(phba, vports);
8130
8131         /* Remove FC host and then SCSI host with the physical port */
8132         fc_remove_host(shost);
8133         scsi_remove_host(shost);
8134         lpfc_cleanup(vport);
8135
8136         /*
8137          * Bring down the SLI Layer. This step disable all interrupts,
8138          * clears the rings, discards all mailbox commands, and resets
8139          * the HBA.
8140          */
8141
8142         /* HBA interrupt will be disabled after this call */
8143         lpfc_sli_hba_down(phba);
8144         /* Stop kthread signal shall trigger work_done one more time */
8145         kthread_stop(phba->worker_thread);
8146         /* Final cleanup of txcmplq and reset the HBA */
8147         lpfc_sli_brdrestart(phba);
8148
8149         lpfc_stop_hba_timers(phba);
8150         spin_lock_irq(&phba->hbalock);
8151         list_del_init(&vport->listentry);
8152         spin_unlock_irq(&phba->hbalock);
8153
8154         lpfc_debugfs_terminate(vport);
8155
8156         /* Disable interrupt */
8157         lpfc_sli_disable_intr(phba);
8158
8159         pci_set_drvdata(pdev, NULL);
8160         scsi_host_put(shost);
8161
8162         /*
8163          * Call scsi_free before mem_free since scsi bufs are released to their
8164          * corresponding pools here.
8165          */
8166         lpfc_scsi_free(phba);
8167         lpfc_mem_free_all(phba);
8168
8169         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8170                           phba->hbqslimp.virt, phba->hbqslimp.phys);
8171
8172         /* Free resources associated with SLI2 interface */
8173         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8174                           phba->slim2p.virt, phba->slim2p.phys);
8175
8176         /* unmap adapter SLIM and Control Registers */
8177         iounmap(phba->ctrl_regs_memmap_p);
8178         iounmap(phba->slim_memmap_p);
8179
8180         lpfc_hba_free(phba);
8181
8182         pci_release_selected_regions(pdev, bars);
8183         pci_disable_device(pdev);
8184 }
8185
8186 /**
8187  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8188  * @pdev: pointer to PCI device
8189  * @msg: power management message
8190  *
8191  * This routine is to be called from the kernel's PCI subsystem to support
8192  * system Power Management (PM) to device with SLI-3 interface spec. When
8193  * PM invokes this method, it quiesces the device by stopping the driver's
8194  * worker thread for the device, turning off device's interrupt and DMA,
8195  * and bring the device offline. Note that as the driver implements the
8196  * minimum PM requirements to a power-aware driver's PM support for the
8197  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8198  * to the suspend() method call will be treated as SUSPEND and the driver will
8199  * fully reinitialize its device during resume() method call, the driver will
8200  * set device to PCI_D3hot state in PCI config space instead of setting it
8201  * according to the @msg provided by the PM.
8202  *
8203  * Return code
8204  *      0 - driver suspended the device
8205  *      Error otherwise
8206  **/
8207 static int
8208 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8209 {
8210         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8211         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8212
8213         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8214                         "0473 PCI device Power Management suspend.\n");
8215
8216         /* Bring down the device */
8217         lpfc_offline_prep(phba);
8218         lpfc_offline(phba);
8219         kthread_stop(phba->worker_thread);
8220
8221         /* Disable interrupt from device */
8222         lpfc_sli_disable_intr(phba);
8223
8224         /* Save device state to PCI config space */
8225         pci_save_state(pdev);
8226         pci_set_power_state(pdev, PCI_D3hot);
8227
8228         return 0;
8229 }
8230
8231 /**
8232  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8233  * @pdev: pointer to PCI device
8234  *
8235  * This routine is to be called from the kernel's PCI subsystem to support
8236  * system Power Management (PM) to device with SLI-3 interface spec. When PM
8237  * invokes this method, it restores the device's PCI config space state and
8238  * fully reinitializes the device and brings it online. Note that as the
8239  * driver implements the minimum PM requirements to a power-aware driver's
8240  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8241  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8242  * driver will fully reinitialize its device during resume() method call,
8243  * the device will be set to PCI_D0 directly in PCI config space before
8244  * restoring the state.
8245  *
8246  * Return code
8247  *      0 - driver suspended the device
8248  *      Error otherwise
8249  **/
8250 static int
8251 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8252 {
8253         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8254         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8255         uint32_t intr_mode;
8256         int error;
8257
8258         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8259                         "0452 PCI device Power Management resume.\n");
8260
8261         /* Restore device state from PCI config space */
8262         pci_set_power_state(pdev, PCI_D0);
8263         pci_restore_state(pdev);
8264
8265         /*
8266          * As the new kernel behavior of pci_restore_state() API call clears
8267          * device saved_state flag, need to save the restored state again.
8268          */
8269         pci_save_state(pdev);
8270
8271         if (pdev->is_busmaster)
8272                 pci_set_master(pdev);
8273
8274         /* Startup the kernel thread for this host adapter. */
8275         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8276                                         "lpfc_worker_%d", phba->brd_no);
8277         if (IS_ERR(phba->worker_thread)) {
8278                 error = PTR_ERR(phba->worker_thread);
8279                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8280                                 "0434 PM resume failed to start worker "
8281                                 "thread: error=x%x.\n", error);
8282                 return error;
8283         }
8284
8285         /* Configure and enable interrupt */
8286         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8287         if (intr_mode == LPFC_INTR_ERROR) {
8288                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8289                                 "0430 PM resume Failed to enable interrupt\n");
8290                 return -EIO;
8291         } else
8292                 phba->intr_mode = intr_mode;
8293
8294         /* Restart HBA and bring it online */
8295         lpfc_sli_brdrestart(phba);
8296         lpfc_online(phba);
8297
8298         /* Log the current active interrupt mode */
8299         lpfc_log_intr_mode(phba, phba->intr_mode);
8300
8301         return 0;
8302 }
8303
8304 /**
8305  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8306  * @phba: pointer to lpfc hba data structure.
8307  *
8308  * This routine is called to prepare the SLI3 device for PCI slot recover. It
8309  * aborts all the outstanding SCSI I/Os to the pci device.
8310  **/
8311 static void
8312 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8313 {
8314         struct lpfc_sli *psli = &phba->sli;
8315         struct lpfc_sli_ring  *pring;
8316
8317         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8318                         "2723 PCI channel I/O abort preparing for recovery\n");
8319
8320         /*
8321          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8322          * and let the SCSI mid-layer to retry them to recover.
8323          */
8324         pring = &psli->ring[psli->fcp_ring];
8325         lpfc_sli_abort_iocb_ring(phba, pring);
8326 }
8327
8328 /**
8329  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8330  * @phba: pointer to lpfc hba data structure.
8331  *
8332  * This routine is called to prepare the SLI3 device for PCI slot reset. It
8333  * disables the device interrupt and pci device, and aborts the internal FCP
8334  * pending I/Os.
8335  **/
8336 static void
8337 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8338 {
8339         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8340                         "2710 PCI channel disable preparing for reset\n");
8341
8342         /* Block any management I/Os to the device */
8343         lpfc_block_mgmt_io(phba);
8344
8345         /* Block all SCSI devices' I/Os on the host */
8346         lpfc_scsi_dev_block(phba);
8347
8348         /* stop all timers */
8349         lpfc_stop_hba_timers(phba);
8350
8351         /* Disable interrupt and pci device */
8352         lpfc_sli_disable_intr(phba);
8353         pci_disable_device(phba->pcidev);
8354
8355         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8356         lpfc_sli_flush_fcp_rings(phba);
8357 }
8358
8359 /**
8360  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8361  * @phba: pointer to lpfc hba data structure.
8362  *
8363  * This routine is called to prepare the SLI3 device for PCI slot permanently
8364  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8365  * pending I/Os.
8366  **/
8367 static void
8368 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8369 {
8370         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8371                         "2711 PCI channel permanent disable for failure\n");
8372         /* Block all SCSI devices' I/Os on the host */
8373         lpfc_scsi_dev_block(phba);
8374
8375         /* stop all timers */
8376         lpfc_stop_hba_timers(phba);
8377
8378         /* Clean up all driver's outstanding SCSI I/Os */
8379         lpfc_sli_flush_fcp_rings(phba);
8380 }
8381
8382 /**
8383  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8384  * @pdev: pointer to PCI device.
8385  * @state: the current PCI connection state.
8386  *
8387  * This routine is called from the PCI subsystem for I/O error handling to
8388  * device with SLI-3 interface spec. This function is called by the PCI
8389  * subsystem after a PCI bus error affecting this device has been detected.
8390  * When this function is invoked, it will need to stop all the I/Os and
8391  * interrupt(s) to the device. Once that is done, it will return
8392  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8393  * as desired.
8394  *
8395  * Return codes
8396  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
8397  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8398  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8399  **/
8400 static pci_ers_result_t
8401 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8402 {
8403         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8404         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8405
8406         switch (state) {
8407         case pci_channel_io_normal:
8408                 /* Non-fatal error, prepare for recovery */
8409                 lpfc_sli_prep_dev_for_recover(phba);
8410                 return PCI_ERS_RESULT_CAN_RECOVER;
8411         case pci_channel_io_frozen:
8412                 /* Fatal error, prepare for slot reset */
8413                 lpfc_sli_prep_dev_for_reset(phba);
8414                 return PCI_ERS_RESULT_NEED_RESET;
8415         case pci_channel_io_perm_failure:
8416                 /* Permanent failure, prepare for device down */
8417                 lpfc_sli_prep_dev_for_perm_failure(phba);
8418                 return PCI_ERS_RESULT_DISCONNECT;
8419         default:
8420                 /* Unknown state, prepare and request slot reset */
8421                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8422                                 "0472 Unknown PCI error state: x%x\n", state);
8423                 lpfc_sli_prep_dev_for_reset(phba);
8424                 return PCI_ERS_RESULT_NEED_RESET;
8425         }
8426 }
8427
8428 /**
8429  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8430  * @pdev: pointer to PCI device.
8431  *
8432  * This routine is called from the PCI subsystem for error handling to
8433  * device with SLI-3 interface spec. This is called after PCI bus has been
8434  * reset to restart the PCI card from scratch, as if from a cold-boot.
8435  * During the PCI subsystem error recovery, after driver returns
8436  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8437  * recovery and then call this routine before calling the .resume method
8438  * to recover the device. This function will initialize the HBA device,
8439  * enable the interrupt, but it will just put the HBA to offline state
8440  * without passing any I/O traffic.
8441  *
8442  * Return codes
8443  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8444  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8445  */
8446 static pci_ers_result_t
8447 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8448 {
8449         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8450         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8451         struct lpfc_sli *psli = &phba->sli;
8452         uint32_t intr_mode;
8453
8454         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8455         if (pci_enable_device_mem(pdev)) {
8456                 printk(KERN_ERR "lpfc: Cannot re-enable "
8457                         "PCI device after reset.\n");
8458                 return PCI_ERS_RESULT_DISCONNECT;
8459         }
8460
8461         pci_restore_state(pdev);
8462
8463         /*
8464          * As the new kernel behavior of pci_restore_state() API call clears
8465          * device saved_state flag, need to save the restored state again.
8466          */
8467         pci_save_state(pdev);
8468
8469         if (pdev->is_busmaster)
8470                 pci_set_master(pdev);
8471
8472         spin_lock_irq(&phba->hbalock);
8473         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8474         spin_unlock_irq(&phba->hbalock);
8475
8476         /* Configure and enable interrupt */
8477         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8478         if (intr_mode == LPFC_INTR_ERROR) {
8479                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8480                                 "0427 Cannot re-enable interrupt after "
8481                                 "slot reset.\n");
8482                 return PCI_ERS_RESULT_DISCONNECT;
8483         } else
8484                 phba->intr_mode = intr_mode;
8485
8486         /* Take device offline, it will perform cleanup */
8487         lpfc_offline_prep(phba);
8488         lpfc_offline(phba);
8489         lpfc_sli_brdrestart(phba);
8490
8491         /* Log the current active interrupt mode */
8492         lpfc_log_intr_mode(phba, phba->intr_mode);
8493
8494         return PCI_ERS_RESULT_RECOVERED;
8495 }
8496
8497 /**
8498  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8499  * @pdev: pointer to PCI device
8500  *
8501  * This routine is called from the PCI subsystem for error handling to device
8502  * with SLI-3 interface spec. It is called when kernel error recovery tells
8503  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8504  * error recovery. After this call, traffic can start to flow from this device
8505  * again.
8506  */
8507 static void
8508 lpfc_io_resume_s3(struct pci_dev *pdev)
8509 {
8510         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8511         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8512
8513         /* Bring device online, it will be no-op for non-fatal error resume */
8514         lpfc_online(phba);
8515
8516         /* Clean up Advanced Error Reporting (AER) if needed */
8517         if (phba->hba_flag & HBA_AER_ENABLED)
8518                 pci_cleanup_aer_uncorrect_error_status(pdev);
8519 }
8520
8521 /**
8522  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8523  * @phba: pointer to lpfc hba data structure.
8524  *
8525  * returns the number of ELS/CT IOCBs to reserve
8526  **/
8527 int
8528 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8529 {
8530         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8531
8532         if (phba->sli_rev == LPFC_SLI_REV4) {
8533                 if (max_xri <= 100)
8534                         return 10;
8535                 else if (max_xri <= 256)
8536                         return 25;
8537                 else if (max_xri <= 512)
8538                         return 50;
8539                 else if (max_xri <= 1024)
8540                         return 100;
8541                 else
8542                         return 150;
8543         } else
8544                 return 0;
8545 }
8546
8547 /**
8548  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8549  * @pdev: pointer to PCI device
8550  * @pid: pointer to PCI device identifier
8551  *
8552  * This routine is called from the kernel's PCI subsystem to device with
8553  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8554  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8555  * information of the device and driver to see if the driver state that it
8556  * can support this kind of device. If the match is successful, the driver
8557  * core invokes this routine. If this routine determines it can claim the HBA,
8558  * it does all the initialization that it needs to do to handle the HBA
8559  * properly.
8560  *
8561  * Return code
8562  *      0 - driver can claim the device
8563  *      negative value - driver can not claim the device
8564  **/
8565 static int __devinit
8566 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8567 {
8568         struct lpfc_hba   *phba;
8569         struct lpfc_vport *vport = NULL;
8570         struct Scsi_Host  *shost = NULL;
8571         int error;
8572         uint32_t cfg_mode, intr_mode;
8573         int mcnt;
8574
8575         /* Allocate memory for HBA structure */
8576         phba = lpfc_hba_alloc(pdev);
8577         if (!phba)
8578                 return -ENOMEM;
8579
8580         /* Perform generic PCI device enabling operation */
8581         error = lpfc_enable_pci_dev(phba);
8582         if (error) {
8583                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8584                                 "1409 Failed to enable pci device.\n");
8585                 goto out_free_phba;
8586         }
8587
8588         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8589         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
8590         if (error)
8591                 goto out_disable_pci_dev;
8592
8593         /* Set up SLI-4 specific device PCI memory space */
8594         error = lpfc_sli4_pci_mem_setup(phba);
8595         if (error) {
8596                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8597                                 "1410 Failed to set up pci memory space.\n");
8598                 goto out_disable_pci_dev;
8599         }
8600
8601         /* Set up phase-1 common device driver resources */
8602         error = lpfc_setup_driver_resource_phase1(phba);
8603         if (error) {
8604                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8605                                 "1411 Failed to set up driver resource.\n");
8606                 goto out_unset_pci_mem_s4;
8607         }
8608
8609         /* Set up SLI-4 Specific device driver resources */
8610         error = lpfc_sli4_driver_resource_setup(phba);
8611         if (error) {
8612                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8613                                 "1412 Failed to set up driver resource.\n");
8614                 goto out_unset_pci_mem_s4;
8615         }
8616
8617         /* Initialize and populate the iocb list per host */
8618
8619         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8620                         "2821 initialize iocb list %d.\n",
8621                         phba->cfg_iocb_cnt*1024);
8622         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
8623
8624         if (error) {
8625                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8626                                 "1413 Failed to initialize iocb list.\n");
8627                 goto out_unset_driver_resource_s4;
8628         }
8629
8630         INIT_LIST_HEAD(&phba->active_rrq_list);
8631
8632         /* Set up common device driver resources */
8633         error = lpfc_setup_driver_resource_phase2(phba);
8634         if (error) {
8635                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8636                                 "1414 Failed to set up driver resource.\n");
8637                 goto out_free_iocb_list;
8638         }
8639
8640         /* Create SCSI host to the physical port */
8641         error = lpfc_create_shost(phba);
8642         if (error) {
8643                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8644                                 "1415 Failed to create scsi host.\n");
8645                 goto out_unset_driver_resource;
8646         }
8647
8648         /* Configure sysfs attributes */
8649         vport = phba->pport;
8650         error = lpfc_alloc_sysfs_attr(vport);
8651         if (error) {
8652                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8653                                 "1416 Failed to allocate sysfs attr\n");
8654                 goto out_destroy_shost;
8655         }
8656
8657         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8658         /* Now, trying to enable interrupt and bring up the device */
8659         cfg_mode = phba->cfg_use_msi;
8660         while (true) {
8661                 /* Put device to a known state before enabling interrupt */
8662                 lpfc_stop_port(phba);
8663                 /* Configure and enable interrupt */
8664                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
8665                 if (intr_mode == LPFC_INTR_ERROR) {
8666                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8667                                         "0426 Failed to enable interrupt.\n");
8668                         error = -ENODEV;
8669                         goto out_free_sysfs_attr;
8670                 }
8671                 /* Default to single FCP EQ for non-MSI-X */
8672                 if (phba->intr_type != MSIX)
8673                         phba->cfg_fcp_eq_count = 1;
8674                 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count)
8675                         phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
8676                 /* Set up SLI-4 HBA */
8677                 if (lpfc_sli4_hba_setup(phba)) {
8678                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8679                                         "1421 Failed to set up hba\n");
8680                         error = -ENODEV;
8681                         goto out_disable_intr;
8682                 }
8683
8684                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8685                 if (intr_mode != 0)
8686                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
8687                                                             LPFC_ACT_INTR_CNT);
8688
8689                 /* Check active interrupts received only for MSI/MSI-X */
8690                 if (intr_mode == 0 ||
8691                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
8692                         /* Log the current active interrupt mode */
8693                         phba->intr_mode = intr_mode;
8694                         lpfc_log_intr_mode(phba, intr_mode);
8695                         break;
8696                 }
8697                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8698                                 "0451 Configure interrupt mode (%d) "
8699                                 "failed active interrupt test.\n",
8700                                 intr_mode);
8701                 /* Unset the previous SLI-4 HBA setup. */
8702                 /*
8703                  * TODO:  Is this operation compatible with IF TYPE 2
8704                  * devices?  All port state is deleted and cleared.
8705                  */
8706                 lpfc_sli4_unset_hba(phba);
8707                 /* Try next level of interrupt mode */
8708                 cfg_mode = --intr_mode;
8709         }
8710
8711         /* Perform post initialization setup */
8712         lpfc_post_init_setup(phba);
8713
8714         /* Check if there are static vports to be created. */
8715         lpfc_create_static_vport(phba);
8716
8717         return 0;
8718
8719 out_disable_intr:
8720         lpfc_sli4_disable_intr(phba);
8721 out_free_sysfs_attr:
8722         lpfc_free_sysfs_attr(vport);
8723 out_destroy_shost:
8724         lpfc_destroy_shost(phba);
8725 out_unset_driver_resource:
8726         lpfc_unset_driver_resource_phase2(phba);
8727 out_free_iocb_list:
8728         lpfc_free_iocb_list(phba);
8729 out_unset_driver_resource_s4:
8730         lpfc_sli4_driver_resource_unset(phba);
8731 out_unset_pci_mem_s4:
8732         lpfc_sli4_pci_mem_unset(phba);
8733 out_disable_pci_dev:
8734         lpfc_disable_pci_dev(phba);
8735         if (shost)
8736                 scsi_host_put(shost);
8737 out_free_phba:
8738         lpfc_hba_free(phba);
8739         return error;
8740 }
8741
8742 /**
8743  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8744  * @pdev: pointer to PCI device
8745  *
8746  * This routine is called from the kernel's PCI subsystem to device with
8747  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8748  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8749  * device to be removed from the PCI subsystem properly.
8750  **/
8751 static void __devexit
8752 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
8753 {
8754         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8755         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8756         struct lpfc_vport **vports;
8757         struct lpfc_hba *phba = vport->phba;
8758         int i;
8759
8760         /* Mark the device unloading flag */
8761         spin_lock_irq(&phba->hbalock);
8762         vport->load_flag |= FC_UNLOADING;
8763         spin_unlock_irq(&phba->hbalock);
8764
8765         /* Free the HBA sysfs attributes */
8766         lpfc_free_sysfs_attr(vport);
8767
8768         /* Release all the vports against this physical port */
8769         vports = lpfc_create_vport_work_array(phba);
8770         if (vports != NULL)
8771                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8772                         fc_vport_terminate(vports[i]->fc_vport);
8773         lpfc_destroy_vport_work_array(phba, vports);
8774
8775         /* Remove FC host and then SCSI host with the physical port */
8776         fc_remove_host(shost);
8777         scsi_remove_host(shost);
8778
8779         /* Perform cleanup on the physical port */
8780         lpfc_cleanup(vport);
8781
8782         /*
8783          * Bring down the SLI Layer. This step disables all interrupts,
8784          * clears the rings, discards all mailbox commands, and resets
8785          * the HBA FCoE function.
8786          */
8787         lpfc_debugfs_terminate(vport);
8788         lpfc_sli4_hba_unset(phba);
8789
8790         spin_lock_irq(&phba->hbalock);
8791         list_del_init(&vport->listentry);
8792         spin_unlock_irq(&phba->hbalock);
8793
8794         /* Perform scsi free before driver resource_unset since scsi
8795          * buffers are released to their corresponding pools here.
8796          */
8797         lpfc_scsi_free(phba);
8798         lpfc_sli4_driver_resource_unset(phba);
8799
8800         /* Unmap adapter Control and Doorbell registers */
8801         lpfc_sli4_pci_mem_unset(phba);
8802
8803         /* Release PCI resources and disable device's PCI function */
8804         scsi_host_put(shost);
8805         lpfc_disable_pci_dev(phba);
8806
8807         /* Finally, free the driver's device data structure */
8808         lpfc_hba_free(phba);
8809
8810         return;
8811 }
8812
8813 /**
8814  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8815  * @pdev: pointer to PCI device
8816  * @msg: power management message
8817  *
8818  * This routine is called from the kernel's PCI subsystem to support system
8819  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8820  * this method, it quiesces the device by stopping the driver's worker
8821  * thread for the device, turning off device's interrupt and DMA, and bring
8822  * the device offline. Note that as the driver implements the minimum PM
8823  * requirements to a power-aware driver's PM support for suspend/resume -- all
8824  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8825  * method call will be treated as SUSPEND and the driver will fully
8826  * reinitialize its device during resume() method call, the driver will set
8827  * device to PCI_D3hot state in PCI config space instead of setting it
8828  * according to the @msg provided by the PM.
8829  *
8830  * Return code
8831  *      0 - driver suspended the device
8832  *      Error otherwise
8833  **/
8834 static int
8835 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
8836 {
8837         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8838         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8839
8840         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8841                         "2843 PCI device Power Management suspend.\n");
8842
8843         /* Bring down the device */
8844         lpfc_offline_prep(phba);
8845         lpfc_offline(phba);
8846         kthread_stop(phba->worker_thread);
8847
8848         /* Disable interrupt from device */
8849         lpfc_sli4_disable_intr(phba);
8850
8851         /* Save device state to PCI config space */
8852         pci_save_state(pdev);
8853         pci_set_power_state(pdev, PCI_D3hot);
8854
8855         return 0;
8856 }
8857
8858 /**
8859  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8860  * @pdev: pointer to PCI device
8861  *
8862  * This routine is called from the kernel's PCI subsystem to support system
8863  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8864  * this method, it restores the device's PCI config space state and fully
8865  * reinitializes the device and brings it online. Note that as the driver
8866  * implements the minimum PM requirements to a power-aware driver's PM for
8867  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8868  * to the suspend() method call will be treated as SUSPEND and the driver
8869  * will fully reinitialize its device during resume() method call, the device
8870  * will be set to PCI_D0 directly in PCI config space before restoring the
8871  * state.
8872  *
8873  * Return code
8874  *      0 - driver suspended the device
8875  *      Error otherwise
8876  **/
8877 static int
8878 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
8879 {
8880         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8881         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8882         uint32_t intr_mode;
8883         int error;
8884
8885         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8886                         "0292 PCI device Power Management resume.\n");
8887
8888         /* Restore device state from PCI config space */
8889         pci_set_power_state(pdev, PCI_D0);
8890         pci_restore_state(pdev);
8891
8892         /*
8893          * As the new kernel behavior of pci_restore_state() API call clears
8894          * device saved_state flag, need to save the restored state again.
8895          */
8896         pci_save_state(pdev);
8897
8898         if (pdev->is_busmaster)
8899                 pci_set_master(pdev);
8900
8901          /* Startup the kernel thread for this host adapter. */
8902         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8903                                         "lpfc_worker_%d", phba->brd_no);
8904         if (IS_ERR(phba->worker_thread)) {
8905                 error = PTR_ERR(phba->worker_thread);
8906                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8907                                 "0293 PM resume failed to start worker "
8908                                 "thread: error=x%x.\n", error);
8909                 return error;
8910         }
8911
8912         /* Configure and enable interrupt */
8913         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8914         if (intr_mode == LPFC_INTR_ERROR) {
8915                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8916                                 "0294 PM resume Failed to enable interrupt\n");
8917                 return -EIO;
8918         } else
8919                 phba->intr_mode = intr_mode;
8920
8921         /* Restart HBA and bring it online */
8922         lpfc_sli_brdrestart(phba);
8923         lpfc_online(phba);
8924
8925         /* Log the current active interrupt mode */
8926         lpfc_log_intr_mode(phba, phba->intr_mode);
8927
8928         return 0;
8929 }
8930
8931 /**
8932  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
8933  * @phba: pointer to lpfc hba data structure.
8934  *
8935  * This routine is called to prepare the SLI4 device for PCI slot recover. It
8936  * aborts all the outstanding SCSI I/Os to the pci device.
8937  **/
8938 static void
8939 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
8940 {
8941         struct lpfc_sli *psli = &phba->sli;
8942         struct lpfc_sli_ring  *pring;
8943
8944         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8945                         "2828 PCI channel I/O abort preparing for recovery\n");
8946         /*
8947          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8948          * and let the SCSI mid-layer to retry them to recover.
8949          */
8950         pring = &psli->ring[psli->fcp_ring];
8951         lpfc_sli_abort_iocb_ring(phba, pring);
8952 }
8953
8954 /**
8955  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
8956  * @phba: pointer to lpfc hba data structure.
8957  *
8958  * This routine is called to prepare the SLI4 device for PCI slot reset. It
8959  * disables the device interrupt and pci device, and aborts the internal FCP
8960  * pending I/Os.
8961  **/
8962 static void
8963 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
8964 {
8965         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8966                         "2826 PCI channel disable preparing for reset\n");
8967
8968         /* Block any management I/Os to the device */
8969         lpfc_block_mgmt_io(phba);
8970
8971         /* Block all SCSI devices' I/Os on the host */
8972         lpfc_scsi_dev_block(phba);
8973
8974         /* stop all timers */
8975         lpfc_stop_hba_timers(phba);
8976
8977         /* Disable interrupt and pci device */
8978         lpfc_sli4_disable_intr(phba);
8979         pci_disable_device(phba->pcidev);
8980
8981         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8982         lpfc_sli_flush_fcp_rings(phba);
8983 }
8984
8985 /**
8986  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
8987  * @phba: pointer to lpfc hba data structure.
8988  *
8989  * This routine is called to prepare the SLI4 device for PCI slot permanently
8990  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8991  * pending I/Os.
8992  **/
8993 static void
8994 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8995 {
8996         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8997                         "2827 PCI channel permanent disable for failure\n");
8998
8999         /* Block all SCSI devices' I/Os on the host */
9000         lpfc_scsi_dev_block(phba);
9001
9002         /* stop all timers */
9003         lpfc_stop_hba_timers(phba);
9004
9005         /* Clean up all driver's outstanding SCSI I/Os */
9006         lpfc_sli_flush_fcp_rings(phba);
9007 }
9008
9009 /**
9010  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9011  * @pdev: pointer to PCI device.
9012  * @state: the current PCI connection state.
9013  *
9014  * This routine is called from the PCI subsystem for error handling to device
9015  * with SLI-4 interface spec. This function is called by the PCI subsystem
9016  * after a PCI bus error affecting this device has been detected. When this
9017  * function is invoked, it will need to stop all the I/Os and interrupt(s)
9018  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9019  * for the PCI subsystem to perform proper recovery as desired.
9020  *
9021  * Return codes
9022  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9023  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9024  **/
9025 static pci_ers_result_t
9026 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
9027 {
9028         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9029         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9030
9031         switch (state) {
9032         case pci_channel_io_normal:
9033                 /* Non-fatal error, prepare for recovery */
9034                 lpfc_sli4_prep_dev_for_recover(phba);
9035                 return PCI_ERS_RESULT_CAN_RECOVER;
9036         case pci_channel_io_frozen:
9037                 /* Fatal error, prepare for slot reset */
9038                 lpfc_sli4_prep_dev_for_reset(phba);
9039                 return PCI_ERS_RESULT_NEED_RESET;
9040         case pci_channel_io_perm_failure:
9041                 /* Permanent failure, prepare for device down */
9042                 lpfc_sli4_prep_dev_for_perm_failure(phba);
9043                 return PCI_ERS_RESULT_DISCONNECT;
9044         default:
9045                 /* Unknown state, prepare and request slot reset */
9046                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9047                                 "2825 Unknown PCI error state: x%x\n", state);
9048                 lpfc_sli4_prep_dev_for_reset(phba);
9049                 return PCI_ERS_RESULT_NEED_RESET;
9050         }
9051 }
9052
9053 /**
9054  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9055  * @pdev: pointer to PCI device.
9056  *
9057  * This routine is called from the PCI subsystem for error handling to device
9058  * with SLI-4 interface spec. It is called after PCI bus has been reset to
9059  * restart the PCI card from scratch, as if from a cold-boot. During the
9060  * PCI subsystem error recovery, after the driver returns
9061  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9062  * recovery and then call this routine before calling the .resume method to
9063  * recover the device. This function will initialize the HBA device, enable
9064  * the interrupt, but it will just put the HBA to offline state without
9065  * passing any I/O traffic.
9066  *
9067  * Return codes
9068  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9069  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9070  */
9071 static pci_ers_result_t
9072 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
9073 {
9074         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9075         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9076         struct lpfc_sli *psli = &phba->sli;
9077         uint32_t intr_mode;
9078
9079         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9080         if (pci_enable_device_mem(pdev)) {
9081                 printk(KERN_ERR "lpfc: Cannot re-enable "
9082                         "PCI device after reset.\n");
9083                 return PCI_ERS_RESULT_DISCONNECT;
9084         }
9085
9086         pci_restore_state(pdev);
9087         if (pdev->is_busmaster)
9088                 pci_set_master(pdev);
9089
9090         spin_lock_irq(&phba->hbalock);
9091         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9092         spin_unlock_irq(&phba->hbalock);
9093
9094         /* Configure and enable interrupt */
9095         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9096         if (intr_mode == LPFC_INTR_ERROR) {
9097                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9098                                 "2824 Cannot re-enable interrupt after "
9099                                 "slot reset.\n");
9100                 return PCI_ERS_RESULT_DISCONNECT;
9101         } else
9102                 phba->intr_mode = intr_mode;
9103
9104         /* Log the current active interrupt mode */
9105         lpfc_log_intr_mode(phba, phba->intr_mode);
9106
9107         return PCI_ERS_RESULT_RECOVERED;
9108 }
9109
9110 /**
9111  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9112  * @pdev: pointer to PCI device
9113  *
9114  * This routine is called from the PCI subsystem for error handling to device
9115  * with SLI-4 interface spec. It is called when kernel error recovery tells
9116  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9117  * error recovery. After this call, traffic can start to flow from this device
9118  * again.
9119  **/
9120 static void
9121 lpfc_io_resume_s4(struct pci_dev *pdev)
9122 {
9123         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9124         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9125
9126         /*
9127          * In case of slot reset, as function reset is performed through
9128          * mailbox command which needs DMA to be enabled, this operation
9129          * has to be moved to the io resume phase. Taking device offline
9130          * will perform the necessary cleanup.
9131          */
9132         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9133                 /* Perform device reset */
9134                 lpfc_offline_prep(phba);
9135                 lpfc_offline(phba);
9136                 lpfc_sli_brdrestart(phba);
9137                 /* Bring the device back online */
9138                 lpfc_online(phba);
9139         }
9140
9141         /* Clean up Advanced Error Reporting (AER) if needed */
9142         if (phba->hba_flag & HBA_AER_ENABLED)
9143                 pci_cleanup_aer_uncorrect_error_status(pdev);
9144 }
9145
9146 /**
9147  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9148  * @pdev: pointer to PCI device
9149  * @pid: pointer to PCI device identifier
9150  *
9151  * This routine is to be registered to the kernel's PCI subsystem. When an
9152  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9153  * at PCI device-specific information of the device and driver to see if the
9154  * driver state that it can support this kind of device. If the match is
9155  * successful, the driver core invokes this routine. This routine dispatches
9156  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9157  * do all the initialization that it needs to do to handle the HBA device
9158  * properly.
9159  *
9160  * Return code
9161  *      0 - driver can claim the device
9162  *      negative value - driver can not claim the device
9163  **/
9164 static int __devinit
9165 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9166 {
9167         int rc;
9168         struct lpfc_sli_intf intf;
9169
9170         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
9171                 return -ENODEV;
9172
9173         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
9174             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
9175                 rc = lpfc_pci_probe_one_s4(pdev, pid);
9176         else
9177                 rc = lpfc_pci_probe_one_s3(pdev, pid);
9178
9179         return rc;
9180 }
9181
9182 /**
9183  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9184  * @pdev: pointer to PCI device
9185  *
9186  * This routine is to be registered to the kernel's PCI subsystem. When an
9187  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9188  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9189  * remove routine, which will perform all the necessary cleanup for the
9190  * device to be removed from the PCI subsystem properly.
9191  **/
9192 static void __devexit
9193 lpfc_pci_remove_one(struct pci_dev *pdev)
9194 {
9195         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9196         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9197
9198         switch (phba->pci_dev_grp) {
9199         case LPFC_PCI_DEV_LP:
9200                 lpfc_pci_remove_one_s3(pdev);
9201                 break;
9202         case LPFC_PCI_DEV_OC:
9203                 lpfc_pci_remove_one_s4(pdev);
9204                 break;
9205         default:
9206                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9207                                 "1424 Invalid PCI device group: 0x%x\n",
9208                                 phba->pci_dev_grp);
9209                 break;
9210         }
9211         return;
9212 }
9213
9214 /**
9215  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9216  * @pdev: pointer to PCI device
9217  * @msg: power management message
9218  *
9219  * This routine is to be registered to the kernel's PCI subsystem to support
9220  * system Power Management (PM). When PM invokes this method, it dispatches
9221  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9222  * suspend the device.
9223  *
9224  * Return code
9225  *      0 - driver suspended the device
9226  *      Error otherwise
9227  **/
9228 static int
9229 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9230 {
9231         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9232         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9233         int rc = -ENODEV;
9234
9235         switch (phba->pci_dev_grp) {
9236         case LPFC_PCI_DEV_LP:
9237                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9238                 break;
9239         case LPFC_PCI_DEV_OC:
9240                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9241                 break;
9242         default:
9243                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9244                                 "1425 Invalid PCI device group: 0x%x\n",
9245                                 phba->pci_dev_grp);
9246                 break;
9247         }
9248         return rc;
9249 }
9250
9251 /**
9252  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9253  * @pdev: pointer to PCI device
9254  *
9255  * This routine is to be registered to the kernel's PCI subsystem to support
9256  * system Power Management (PM). When PM invokes this method, it dispatches
9257  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9258  * resume the device.
9259  *
9260  * Return code
9261  *      0 - driver suspended the device
9262  *      Error otherwise
9263  **/
9264 static int
9265 lpfc_pci_resume_one(struct pci_dev *pdev)
9266 {
9267         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9268         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9269         int rc = -ENODEV;
9270
9271         switch (phba->pci_dev_grp) {
9272         case LPFC_PCI_DEV_LP:
9273                 rc = lpfc_pci_resume_one_s3(pdev);
9274                 break;
9275         case LPFC_PCI_DEV_OC:
9276                 rc = lpfc_pci_resume_one_s4(pdev);
9277                 break;
9278         default:
9279                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9280                                 "1426 Invalid PCI device group: 0x%x\n",
9281                                 phba->pci_dev_grp);
9282                 break;
9283         }
9284         return rc;
9285 }
9286
9287 /**
9288  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9289  * @pdev: pointer to PCI device.
9290  * @state: the current PCI connection state.
9291  *
9292  * This routine is registered to the PCI subsystem for error handling. This
9293  * function is called by the PCI subsystem after a PCI bus error affecting
9294  * this device has been detected. When this routine is invoked, it dispatches
9295  * the action to the proper SLI-3 or SLI-4 device error detected handling
9296  * routine, which will perform the proper error detected operation.
9297  *
9298  * Return codes
9299  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9300  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9301  **/
9302 static pci_ers_result_t
9303 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9304 {
9305         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9306         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9307         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9308
9309         switch (phba->pci_dev_grp) {
9310         case LPFC_PCI_DEV_LP:
9311                 rc = lpfc_io_error_detected_s3(pdev, state);
9312                 break;
9313         case LPFC_PCI_DEV_OC:
9314                 rc = lpfc_io_error_detected_s4(pdev, state);
9315                 break;
9316         default:
9317                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9318                                 "1427 Invalid PCI device group: 0x%x\n",
9319                                 phba->pci_dev_grp);
9320                 break;
9321         }
9322         return rc;
9323 }
9324
9325 /**
9326  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9327  * @pdev: pointer to PCI device.
9328  *
9329  * This routine is registered to the PCI subsystem for error handling. This
9330  * function is called after PCI bus has been reset to restart the PCI card
9331  * from scratch, as if from a cold-boot. When this routine is invoked, it
9332  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9333  * routine, which will perform the proper device reset.
9334  *
9335  * Return codes
9336  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9337  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9338  **/
9339 static pci_ers_result_t
9340 lpfc_io_slot_reset(struct pci_dev *pdev)
9341 {
9342         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9343         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9344         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9345
9346         switch (phba->pci_dev_grp) {
9347         case LPFC_PCI_DEV_LP:
9348                 rc = lpfc_io_slot_reset_s3(pdev);
9349                 break;
9350         case LPFC_PCI_DEV_OC:
9351                 rc = lpfc_io_slot_reset_s4(pdev);
9352                 break;
9353         default:
9354                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9355                                 "1428 Invalid PCI device group: 0x%x\n",
9356                                 phba->pci_dev_grp);
9357                 break;
9358         }
9359         return rc;
9360 }
9361
9362 /**
9363  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9364  * @pdev: pointer to PCI device
9365  *
9366  * This routine is registered to the PCI subsystem for error handling. It
9367  * is called when kernel error recovery tells the lpfc driver that it is
9368  * OK to resume normal PCI operation after PCI bus error recovery. When
9369  * this routine is invoked, it dispatches the action to the proper SLI-3
9370  * or SLI-4 device io_resume routine, which will resume the device operation.
9371  **/
9372 static void
9373 lpfc_io_resume(struct pci_dev *pdev)
9374 {
9375         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9376         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9377
9378         switch (phba->pci_dev_grp) {
9379         case LPFC_PCI_DEV_LP:
9380                 lpfc_io_resume_s3(pdev);
9381                 break;
9382         case LPFC_PCI_DEV_OC:
9383                 lpfc_io_resume_s4(pdev);
9384                 break;
9385         default:
9386                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9387                                 "1429 Invalid PCI device group: 0x%x\n",
9388                                 phba->pci_dev_grp);
9389                 break;
9390         }
9391         return;
9392 }
9393
9394 static struct pci_device_id lpfc_id_table[] = {
9395         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9396                 PCI_ANY_ID, PCI_ANY_ID, },
9397         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9398                 PCI_ANY_ID, PCI_ANY_ID, },
9399         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9400                 PCI_ANY_ID, PCI_ANY_ID, },
9401         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9402                 PCI_ANY_ID, PCI_ANY_ID, },
9403         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9404                 PCI_ANY_ID, PCI_ANY_ID, },
9405         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9406                 PCI_ANY_ID, PCI_ANY_ID, },
9407         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9408                 PCI_ANY_ID, PCI_ANY_ID, },
9409         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9410                 PCI_ANY_ID, PCI_ANY_ID, },
9411         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9412                 PCI_ANY_ID, PCI_ANY_ID, },
9413         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9414                 PCI_ANY_ID, PCI_ANY_ID, },
9415         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9416                 PCI_ANY_ID, PCI_ANY_ID, },
9417         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9418                 PCI_ANY_ID, PCI_ANY_ID, },
9419         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9420                 PCI_ANY_ID, PCI_ANY_ID, },
9421         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9422                 PCI_ANY_ID, PCI_ANY_ID, },
9423         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9424                 PCI_ANY_ID, PCI_ANY_ID, },
9425         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9426                 PCI_ANY_ID, PCI_ANY_ID, },
9427         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9428                 PCI_ANY_ID, PCI_ANY_ID, },
9429         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9430                 PCI_ANY_ID, PCI_ANY_ID, },
9431         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9432                 PCI_ANY_ID, PCI_ANY_ID, },
9433         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9434                 PCI_ANY_ID, PCI_ANY_ID, },
9435         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9436                 PCI_ANY_ID, PCI_ANY_ID, },
9437         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9438                 PCI_ANY_ID, PCI_ANY_ID, },
9439         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9440                 PCI_ANY_ID, PCI_ANY_ID, },
9441         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9442                 PCI_ANY_ID, PCI_ANY_ID, },
9443         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9444                 PCI_ANY_ID, PCI_ANY_ID, },
9445         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9446                 PCI_ANY_ID, PCI_ANY_ID, },
9447         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9448                 PCI_ANY_ID, PCI_ANY_ID, },
9449         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9450                 PCI_ANY_ID, PCI_ANY_ID, },
9451         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9452                 PCI_ANY_ID, PCI_ANY_ID, },
9453         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9454                 PCI_ANY_ID, PCI_ANY_ID, },
9455         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9456                 PCI_ANY_ID, PCI_ANY_ID, },
9457         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9458                 PCI_ANY_ID, PCI_ANY_ID, },
9459         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9460                 PCI_ANY_ID, PCI_ANY_ID, },
9461         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9462                 PCI_ANY_ID, PCI_ANY_ID, },
9463         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9464                 PCI_ANY_ID, PCI_ANY_ID, },
9465         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9466                 PCI_ANY_ID, PCI_ANY_ID, },
9467         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9468                 PCI_ANY_ID, PCI_ANY_ID, },
9469         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9470                 PCI_ANY_ID, PCI_ANY_ID, },
9471         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9472                 PCI_ANY_ID, PCI_ANY_ID, },
9473         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
9474                 PCI_ANY_ID, PCI_ANY_ID, },
9475         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9476                 PCI_ANY_ID, PCI_ANY_ID, },
9477         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9478                 PCI_ANY_ID, PCI_ANY_ID, },
9479         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9480                 PCI_ANY_ID, PCI_ANY_ID, },
9481         { 0 }
9482 };
9483
9484 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
9485
9486 static struct pci_error_handlers lpfc_err_handler = {
9487         .error_detected = lpfc_io_error_detected,
9488         .slot_reset = lpfc_io_slot_reset,
9489         .resume = lpfc_io_resume,
9490 };
9491
9492 static struct pci_driver lpfc_driver = {
9493         .name           = LPFC_DRIVER_NAME,
9494         .id_table       = lpfc_id_table,
9495         .probe          = lpfc_pci_probe_one,
9496         .remove         = __devexit_p(lpfc_pci_remove_one),
9497         .suspend        = lpfc_pci_suspend_one,
9498         .resume         = lpfc_pci_resume_one,
9499         .err_handler    = &lpfc_err_handler,
9500 };
9501
9502 /**
9503  * lpfc_init - lpfc module initialization routine
9504  *
9505  * This routine is to be invoked when the lpfc module is loaded into the
9506  * kernel. The special kernel macro module_init() is used to indicate the
9507  * role of this routine to the kernel as lpfc module entry point.
9508  *
9509  * Return codes
9510  *   0 - successful
9511  *   -ENOMEM - FC attach transport failed
9512  *   all others - failed
9513  */
9514 static int __init
9515 lpfc_init(void)
9516 {
9517         int error = 0;
9518
9519         printk(LPFC_MODULE_DESC "\n");
9520         printk(LPFC_COPYRIGHT "\n");
9521
9522         if (lpfc_enable_npiv) {
9523                 lpfc_transport_functions.vport_create = lpfc_vport_create;
9524                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
9525         }
9526         lpfc_transport_template =
9527                                 fc_attach_transport(&lpfc_transport_functions);
9528         if (lpfc_transport_template == NULL)
9529                 return -ENOMEM;
9530         if (lpfc_enable_npiv) {
9531                 lpfc_vport_transport_template =
9532                         fc_attach_transport(&lpfc_vport_transport_functions);
9533                 if (lpfc_vport_transport_template == NULL) {
9534                         fc_release_transport(lpfc_transport_template);
9535                         return -ENOMEM;
9536                 }
9537         }
9538         error = pci_register_driver(&lpfc_driver);
9539         if (error) {
9540                 fc_release_transport(lpfc_transport_template);
9541                 if (lpfc_enable_npiv)
9542                         fc_release_transport(lpfc_vport_transport_template);
9543         }
9544
9545         return error;
9546 }
9547
9548 /**
9549  * lpfc_exit - lpfc module removal routine
9550  *
9551  * This routine is invoked when the lpfc module is removed from the kernel.
9552  * The special kernel macro module_exit() is used to indicate the role of
9553  * this routine to the kernel as lpfc module exit point.
9554  */
9555 static void __exit
9556 lpfc_exit(void)
9557 {
9558         pci_unregister_driver(&lpfc_driver);
9559         fc_release_transport(lpfc_transport_template);
9560         if (lpfc_enable_npiv)
9561                 fc_release_transport(lpfc_vport_transport_template);
9562         if (_dump_buf_data) {
9563                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
9564                                 "_dump_buf_data at 0x%p\n",
9565                                 (1L << _dump_buf_data_order), _dump_buf_data);
9566                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
9567         }
9568
9569         if (_dump_buf_dif) {
9570                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
9571                                 "_dump_buf_dif at 0x%p\n",
9572                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
9573                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
9574         }
9575 }
9576
9577 module_init(lpfc_init);
9578 module_exit(lpfc_exit);
9579 MODULE_LICENSE("GPL");
9580 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
9581 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9582 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);