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_WARNING, 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         uint32_t tmo_posted;
 949         unsigned long iflag;
 950
 951         phba = (struct lpfc_hba *)ptr;
 952         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 953         tmo_posted = phba->hba_flag & HBA_RRQ_ACTIVE;
 954         if (!tmo_posted)
 955                 phba->hba_flag |= HBA_RRQ_ACTIVE;
 956         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 957         if (!tmo_posted)
 958                 lpfc_worker_wake_up(phba);
 959 }
 960
 961 /**
 962  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 963  * @phba: pointer to lpfc hba data structure.
 964  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 965  *
 966  * This is the callback function to the lpfc heart-beat mailbox command.
 967  * If configured, the lpfc driver issues the heart-beat mailbox command to
 968  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 969  * heart-beat mailbox command is issued, the driver shall set up heart-beat
 970  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 971  * heart-beat outstanding state. Once the mailbox command comes back and
 972  * no error conditions detected, the heart-beat mailbox command timer is
 973  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
 974  * state is cleared for the next heart-beat. If the timer expired with the
 975  * heart-beat outstanding state set, the driver will put the HBA offline.
 976  **/
 977 static void
 978 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 979 {
 980         unsigned long drvr_flag;
 981
 982         spin_lock_irqsave(&phba->hbalock, drvr_flag);
 983         phba->hb_outstanding = 0;
 984         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
 985
 986         /* Check and reset heart-beat timer is necessary */
 987         mempool_free(pmboxq, phba->mbox_mem_pool);
 988         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
 989                 !(phba->link_state == LPFC_HBA_ERROR) &&
 990                 !(phba->pport->load_flag & FC_UNLOADING))
 991                 mod_timer(&phba->hb_tmofunc,
 992                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 993         return;
 994 }
 995
 996 /**
 997  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
 998  * @phba: pointer to lpfc hba data structure.
 999  *
1000  * This is the actual HBA-timer timeout handler to be invoked by the worker
1001  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1002  * handler performs any periodic operations needed for the device. If such
1003  * periodic event has already been attended to either in the interrupt handler
1004  * or by processing slow-ring or fast-ring events within the HBA-timer
1005  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1006  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1007  * is configured and there is no heart-beat mailbox command outstanding, a
1008  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1009  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1010  * to offline.
1011  **/
1012 void
1013 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1014 {
1015         struct lpfc_vport **vports;
1016         LPFC_MBOXQ_t *pmboxq;
1017         struct lpfc_dmabuf *buf_ptr;
1018         int retval, i;
1019         struct lpfc_sli *psli = &phba->sli;
1020         LIST_HEAD(completions);
1021
1022         vports = lpfc_create_vport_work_array(phba);
1023         if (vports != NULL)
1024                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1025                         lpfc_rcv_seq_check_edtov(vports[i]);
1026         lpfc_destroy_vport_work_array(phba, vports);
1027
1028         if ((phba->link_state == LPFC_HBA_ERROR) ||
1029                 (phba->pport->load_flag & FC_UNLOADING) ||
1030                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1031                 return;
1032
1033         spin_lock_irq(&phba->pport->work_port_lock);
1034
1035         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1036                 jiffies)) {
1037                 spin_unlock_irq(&phba->pport->work_port_lock);
1038                 if (!phba->hb_outstanding)
1039                         mod_timer(&phba->hb_tmofunc,
1040                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1041                 else
1042                         mod_timer(&phba->hb_tmofunc,
1043                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1044                 return;
1045         }
1046         spin_unlock_irq(&phba->pport->work_port_lock);
1047
1048         if (phba->elsbuf_cnt &&
1049                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1050                 spin_lock_irq(&phba->hbalock);
1051                 list_splice_init(&phba->elsbuf, &completions);
1052                 phba->elsbuf_cnt = 0;
1053                 phba->elsbuf_prev_cnt = 0;
1054                 spin_unlock_irq(&phba->hbalock);
1055
1056                 while (!list_empty(&completions)) {
1057                         list_remove_head(&completions, buf_ptr,
1058                                 struct lpfc_dmabuf, list);
1059                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1060                         kfree(buf_ptr);
1061                 }
1062         }
1063         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1064
1065         /* If there is no heart beat outstanding, issue a heartbeat command */
1066         if (phba->cfg_enable_hba_heartbeat) {
1067                 if (!phba->hb_outstanding) {
1068                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1069                                 (list_empty(&psli->mboxq))) {
1070                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1071                                                         GFP_KERNEL);
1072                                 if (!pmboxq) {
1073                                         mod_timer(&phba->hb_tmofunc,
1074                                                  jiffies +
1075                                                  HZ * LPFC_HB_MBOX_INTERVAL);
1076                                         return;
1077                                 }
1078
1079                                 lpfc_heart_beat(phba, pmboxq);
1080                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1081                                 pmboxq->vport = phba->pport;
1082                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1083                                                 MBX_NOWAIT);
1084
1085                                 if (retval != MBX_BUSY &&
1086                                         retval != MBX_SUCCESS) {
1087                                         mempool_free(pmboxq,
1088                                                         phba->mbox_mem_pool);
1089                                         mod_timer(&phba->hb_tmofunc,
1090                                                 jiffies +
1091                                                 HZ * LPFC_HB_MBOX_INTERVAL);
1092                                         return;
1093                                 }
1094                                 phba->skipped_hb = 0;
1095                                 phba->hb_outstanding = 1;
1096                         } else if (time_before_eq(phba->last_completion_time,
1097                                         phba->skipped_hb)) {
1098                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1099                                         "2857 Last completion time not "
1100                                         " updated in %d ms\n",
1101                                         jiffies_to_msecs(jiffies
1102                                                  - phba->last_completion_time));
1103                         } else
1104                                 phba->skipped_hb = jiffies;
1105
1106                         mod_timer(&phba->hb_tmofunc,
1107                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1108                         return;
1109                 } else {
1110                         /*
1111                         * If heart beat timeout called with hb_outstanding set
1112                         * we need to give the hb mailbox cmd a chance to
1113                         * complete or TMO.
1114                         */
1115                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1116                                         "0459 Adapter heartbeat still out"
1117                                         "standing:last compl time was %d ms.\n",
1118                                         jiffies_to_msecs(jiffies
1119                                                  - phba->last_completion_time));
1120                         mod_timer(&phba->hb_tmofunc,
1121                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1122                 }
1123         }
1124 }
1125
1126 /**
1127  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1128  * @phba: pointer to lpfc hba data structure.
1129  *
1130  * This routine is called to bring the HBA offline when HBA hardware error
1131  * other than Port Error 6 has been detected.
1132  **/
1133 static void
1134 lpfc_offline_eratt(struct lpfc_hba *phba)
1135 {
1136         struct lpfc_sli   *psli = &phba->sli;
1137
1138         spin_lock_irq(&phba->hbalock);
1139         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1140         spin_unlock_irq(&phba->hbalock);
1141         lpfc_offline_prep(phba);
1142
1143         lpfc_offline(phba);
1144         lpfc_reset_barrier(phba);
1145         spin_lock_irq(&phba->hbalock);
1146         lpfc_sli_brdreset(phba);
1147         spin_unlock_irq(&phba->hbalock);
1148         lpfc_hba_down_post(phba);
1149         lpfc_sli_brdready(phba, HS_MBRDY);
1150         lpfc_unblock_mgmt_io(phba);
1151         phba->link_state = LPFC_HBA_ERROR;
1152         return;
1153 }
1154
1155 /**
1156  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1157  * @phba: pointer to lpfc hba data structure.
1158  *
1159  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1160  * other than Port Error 6 has been detected.
1161  **/
1162 static void
1163 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1164 {
1165         lpfc_offline_prep(phba);
1166         lpfc_offline(phba);
1167         lpfc_sli4_brdreset(phba);
1168         lpfc_hba_down_post(phba);
1169         lpfc_sli4_post_status_check(phba);
1170         lpfc_unblock_mgmt_io(phba);
1171         phba->link_state = LPFC_HBA_ERROR;
1172 }
1173
1174 /**
1175  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1176  * @phba: pointer to lpfc hba data structure.
1177  *
1178  * This routine is invoked to handle the deferred HBA hardware error
1179  * conditions. This type of error is indicated by HBA by setting ER1
1180  * and another ER bit in the host status register. The driver will
1181  * wait until the ER1 bit clears before handling the error condition.
1182  **/
1183 static void
1184 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1185 {
1186         uint32_t old_host_status = phba->work_hs;
1187         struct lpfc_sli_ring  *pring;
1188         struct lpfc_sli *psli = &phba->sli;
1189
1190         /* If the pci channel is offline, ignore possible errors,
1191          * since we cannot communicate with the pci card anyway.
1192          */
1193         if (pci_channel_offline(phba->pcidev)) {
1194                 spin_lock_irq(&phba->hbalock);
1195                 phba->hba_flag &= ~DEFER_ERATT;
1196                 spin_unlock_irq(&phba->hbalock);
1197                 return;
1198         }
1199
1200         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1201                 "0479 Deferred Adapter Hardware Error "
1202                 "Data: x%x x%x x%x\n",
1203                 phba->work_hs,
1204                 phba->work_status[0], phba->work_status[1]);
1205
1206         spin_lock_irq(&phba->hbalock);
1207         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1208         spin_unlock_irq(&phba->hbalock);
1209
1210
1211         /*
1212          * Firmware stops when it triggred erratt. That could cause the I/Os
1213          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1214          * SCSI layer retry it after re-establishing link.
1215          */
1216         pring = &psli->ring[psli->fcp_ring];
1217         lpfc_sli_abort_iocb_ring(phba, pring);
1218
1219         /*
1220          * There was a firmware error. Take the hba offline and then
1221          * attempt to restart it.
1222          */
1223         lpfc_offline_prep(phba);
1224         lpfc_offline(phba);
1225
1226         /* Wait for the ER1 bit to clear.*/
1227         while (phba->work_hs & HS_FFER1) {
1228                 msleep(100);
1229                 phba->work_hs = readl(phba->HSregaddr);
1230                 /* If driver is unloading let the worker thread continue */
1231                 if (phba->pport->load_flag & FC_UNLOADING) {
1232                         phba->work_hs = 0;
1233                         break;
1234                 }
1235         }
1236
1237         /*
1238          * This is to ptrotect against a race condition in which
1239          * first write to the host attention register clear the
1240          * host status register.
1241          */
1242         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1243                 phba->work_hs = old_host_status & ~HS_FFER1;
1244
1245         spin_lock_irq(&phba->hbalock);
1246         phba->hba_flag &= ~DEFER_ERATT;
1247         spin_unlock_irq(&phba->hbalock);
1248         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1249         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1250 }
1251
1252 static void
1253 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1254 {
1255         struct lpfc_board_event_header board_event;
1256         struct Scsi_Host *shost;
1257
1258         board_event.event_type = FC_REG_BOARD_EVENT;
1259         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1260         shost = lpfc_shost_from_vport(phba->pport);
1261         fc_host_post_vendor_event(shost, fc_get_event_number(),
1262                                   sizeof(board_event),
1263                                   (char *) &board_event,
1264                                   LPFC_NL_VENDOR_ID);
1265 }
1266
1267 /**
1268  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1269  * @phba: pointer to lpfc hba data structure.
1270  *
1271  * This routine is invoked to handle the following HBA hardware error
1272  * conditions:
1273  * 1 - HBA error attention interrupt
1274  * 2 - DMA ring index out of range
1275  * 3 - Mailbox command came back as unknown
1276  **/
1277 static void
1278 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1279 {
1280         struct lpfc_vport *vport = phba->pport;
1281         struct lpfc_sli   *psli = &phba->sli;
1282         struct lpfc_sli_ring  *pring;
1283         uint32_t event_data;
1284         unsigned long temperature;
1285         struct temp_event temp_event_data;
1286         struct Scsi_Host  *shost;
1287
1288         /* If the pci channel is offline, ignore possible errors,
1289          * since we cannot communicate with the pci card anyway.
1290          */
1291         if (pci_channel_offline(phba->pcidev)) {
1292                 spin_lock_irq(&phba->hbalock);
1293                 phba->hba_flag &= ~DEFER_ERATT;
1294                 spin_unlock_irq(&phba->hbalock);
1295                 return;
1296         }
1297
1298         /* If resets are disabled then leave the HBA alone and return */
1299         if (!phba->cfg_enable_hba_reset)
1300                 return;
1301
1302         /* Send an internal error event to mgmt application */
1303         lpfc_board_errevt_to_mgmt(phba);
1304
1305         if (phba->hba_flag & DEFER_ERATT)
1306                 lpfc_handle_deferred_eratt(phba);
1307
1308         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1309                 if (phba->work_hs & HS_FFER6)
1310                         /* Re-establishing Link */
1311                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1312                                         "1301 Re-establishing Link "
1313                                         "Data: x%x x%x x%x\n",
1314                                         phba->work_hs, phba->work_status[0],
1315                                         phba->work_status[1]);
1316                 if (phba->work_hs & HS_FFER8)
1317                         /* Device Zeroization */
1318                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1319                                         "2861 Host Authentication device "
1320                                         "zeroization Data:x%x x%x x%x\n",
1321                                         phba->work_hs, phba->work_status[0],
1322                                         phba->work_status[1]);
1323
1324                 spin_lock_irq(&phba->hbalock);
1325                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1326                 spin_unlock_irq(&phba->hbalock);
1327
1328                 /*
1329                 * Firmware stops when it triggled erratt with HS_FFER6.
1330                 * That could cause the I/Os dropped by the firmware.
1331                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1332                 * retry it after re-establishing link.
1333                 */
1334                 pring = &psli->ring[psli->fcp_ring];
1335                 lpfc_sli_abort_iocb_ring(phba, pring);
1336
1337                 /*
1338                  * There was a firmware error.  Take the hba offline and then
1339                  * attempt to restart it.
1340                  */
1341                 lpfc_offline_prep(phba);
1342                 lpfc_offline(phba);
1343                 lpfc_sli_brdrestart(phba);
1344                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1345                         lpfc_unblock_mgmt_io(phba);
1346                         return;
1347                 }
1348                 lpfc_unblock_mgmt_io(phba);
1349         } else if (phba->work_hs & HS_CRIT_TEMP) {
1350                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1351                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1352                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1353                 temp_event_data.data = (uint32_t)temperature;
1354
1355                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1356                                 "0406 Adapter maximum temperature exceeded "
1357                                 "(%ld), taking this port offline "
1358                                 "Data: x%x x%x x%x\n",
1359                                 temperature, phba->work_hs,
1360                                 phba->work_status[0], phba->work_status[1]);
1361
1362                 shost = lpfc_shost_from_vport(phba->pport);
1363                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1364                                           sizeof(temp_event_data),
1365                                           (char *) &temp_event_data,
1366                                           SCSI_NL_VID_TYPE_PCI
1367                                           | PCI_VENDOR_ID_EMULEX);
1368
1369                 spin_lock_irq(&phba->hbalock);
1370                 phba->over_temp_state = HBA_OVER_TEMP;
1371                 spin_unlock_irq(&phba->hbalock);
1372                 lpfc_offline_eratt(phba);
1373
1374         } else {
1375                 /* The if clause above forces this code path when the status
1376                  * failure is a value other than FFER6. Do not call the offline
1377                  * twice. This is the adapter hardware error path.
1378                  */
1379                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1380                                 "0457 Adapter Hardware Error "
1381                                 "Data: x%x x%x x%x\n",
1382                                 phba->work_hs,
1383                                 phba->work_status[0], phba->work_status[1]);
1384
1385                 event_data = FC_REG_DUMP_EVENT;
1386                 shost = lpfc_shost_from_vport(vport);
1387                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1388                                 sizeof(event_data), (char *) &event_data,
1389                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1390
1391                 lpfc_offline_eratt(phba);
1392         }
1393         return;
1394 }
1395
1396 /**
1397  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1398  * @phba: pointer to lpfc hba data structure.
1399  *
1400  * This routine is invoked to handle the SLI4 HBA hardware error attention
1401  * conditions.
1402  **/
1403 static void
1404 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1405 {
1406         struct lpfc_vport *vport = phba->pport;
1407         uint32_t event_data;
1408         struct Scsi_Host *shost;
1409         uint32_t if_type;
1410         struct lpfc_register portstat_reg;
1411
1412         /* If the pci channel is offline, ignore possible errors, since
1413          * we cannot communicate with the pci card anyway.
1414          */
1415         if (pci_channel_offline(phba->pcidev))
1416                 return;
1417         /* If resets are disabled then leave the HBA alone and return */
1418         if (!phba->cfg_enable_hba_reset)
1419                 return;
1420
1421         /* Send an internal error event to mgmt application */
1422         lpfc_board_errevt_to_mgmt(phba);
1423
1424         /* For now, the actual action for SLI4 device handling is not
1425          * specified yet, just treated it as adaptor hardware failure
1426          */
1427         event_data = FC_REG_DUMP_EVENT;
1428         shost = lpfc_shost_from_vport(vport);
1429         fc_host_post_vendor_event(shost, fc_get_event_number(),
1430                                   sizeof(event_data), (char *) &event_data,
1431                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1432
1433         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1434         switch (if_type) {
1435         case LPFC_SLI_INTF_IF_TYPE_0:
1436                 lpfc_sli4_offline_eratt(phba);
1437                 break;
1438         case LPFC_SLI_INTF_IF_TYPE_2:
1439                 portstat_reg.word0 =
1440                         readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
1441
1442                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1443                         /* TODO: Register for Overtemp async events. */
1444                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1445                                 "2889 Port Overtemperature event, "
1446                                 "taking port\n");
1447                         spin_lock_irq(&phba->hbalock);
1448                         phba->over_temp_state = HBA_OVER_TEMP;
1449                         spin_unlock_irq(&phba->hbalock);
1450                         lpfc_sli4_offline_eratt(phba);
1451                         return;
1452                 }
1453                 if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) {
1454                         /*
1455                          * TODO: Attempt port recovery via a port reset.
1456                          * When fully implemented, the driver should
1457                          * attempt to recover the port here and return.
1458                          * For now, log an error and take the port offline.
1459                          */
1460                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1461                                         "2887 Port Error: Attempting "
1462                                         "Port Recovery\n");
1463                 }
1464                 lpfc_sli4_offline_eratt(phba);
1465                 break;
1466         case LPFC_SLI_INTF_IF_TYPE_1:
1467         default:
1468                 break;
1469         }
1470 }
1471
1472 /**
1473  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1474  * @phba: pointer to lpfc HBA data structure.
1475  *
1476  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1477  * routine from the API jump table function pointer from the lpfc_hba struct.
1478  *
1479  * Return codes
1480  *   0 - success.
1481  *   Any other value - error.
1482  **/
1483 void
1484 lpfc_handle_eratt(struct lpfc_hba *phba)
1485 {
1486         (*phba->lpfc_handle_eratt)(phba);
1487 }
1488
1489 /**
1490  * lpfc_handle_latt - The HBA link event handler
1491  * @phba: pointer to lpfc hba data structure.
1492  *
1493  * This routine is invoked from the worker thread to handle a HBA host
1494  * attention link event.
1495  **/
1496 void
1497 lpfc_handle_latt(struct lpfc_hba *phba)
1498 {
1499         struct lpfc_vport *vport = phba->pport;
1500         struct lpfc_sli   *psli = &phba->sli;
1501         LPFC_MBOXQ_t *pmb;
1502         volatile uint32_t control;
1503         struct lpfc_dmabuf *mp;
1504         int rc = 0;
1505
1506         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1507         if (!pmb) {
1508                 rc = 1;
1509                 goto lpfc_handle_latt_err_exit;
1510         }
1511
1512         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1513         if (!mp) {
1514                 rc = 2;
1515                 goto lpfc_handle_latt_free_pmb;
1516         }
1517
1518         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1519         if (!mp->virt) {
1520                 rc = 3;
1521                 goto lpfc_handle_latt_free_mp;
1522         }
1523
1524         /* Cleanup any outstanding ELS commands */
1525         lpfc_els_flush_all_cmd(phba);
1526
1527         psli->slistat.link_event++;
1528         lpfc_read_topology(phba, pmb, mp);
1529         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1530         pmb->vport = vport;
1531         /* Block ELS IOCBs until we have processed this mbox command */
1532         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1533         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1534         if (rc == MBX_NOT_FINISHED) {
1535                 rc = 4;
1536                 goto lpfc_handle_latt_free_mbuf;
1537         }
1538
1539         /* Clear Link Attention in HA REG */
1540         spin_lock_irq(&phba->hbalock);
1541         writel(HA_LATT, phba->HAregaddr);
1542         readl(phba->HAregaddr); /* flush */
1543         spin_unlock_irq(&phba->hbalock);
1544
1545         return;
1546
1547 lpfc_handle_latt_free_mbuf:
1548         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1549         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1550 lpfc_handle_latt_free_mp:
1551         kfree(mp);
1552 lpfc_handle_latt_free_pmb:
1553         mempool_free(pmb, phba->mbox_mem_pool);
1554 lpfc_handle_latt_err_exit:
1555         /* Enable Link attention interrupts */
1556         spin_lock_irq(&phba->hbalock);
1557         psli->sli_flag |= LPFC_PROCESS_LA;
1558         control = readl(phba->HCregaddr);
1559         control |= HC_LAINT_ENA;
1560         writel(control, phba->HCregaddr);
1561         readl(phba->HCregaddr); /* flush */
1562
1563         /* Clear Link Attention in HA REG */
1564         writel(HA_LATT, phba->HAregaddr);
1565         readl(phba->HAregaddr); /* flush */
1566         spin_unlock_irq(&phba->hbalock);
1567         lpfc_linkdown(phba);
1568         phba->link_state = LPFC_HBA_ERROR;
1569
1570         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1571                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1572
1573         return;
1574 }
1575
1576 /**
1577  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1578  * @phba: pointer to lpfc hba data structure.
1579  * @vpd: pointer to the vital product data.
1580  * @len: length of the vital product data in bytes.
1581  *
1582  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1583  * an array of characters. In this routine, the ModelName, ProgramType, and
1584  * ModelDesc, etc. fields of the phba data structure will be populated.
1585  *
1586  * Return codes
1587  *   0 - pointer to the VPD passed in is NULL
1588  *   1 - success
1589  **/
1590 int
1591 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1592 {
1593         uint8_t lenlo, lenhi;
1594         int Length;
1595         int i, j;
1596         int finished = 0;
1597         int index = 0;
1598
1599         if (!vpd)
1600                 return 0;
1601
1602         /* Vital Product */
1603         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1604                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1605                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1606                         (uint32_t) vpd[3]);
1607         while (!finished && (index < (len - 4))) {
1608                 switch (vpd[index]) {
1609                 case 0x82:
1610                 case 0x91:
1611                         index += 1;
1612                         lenlo = vpd[index];
1613                         index += 1;
1614                         lenhi = vpd[index];
1615                         index += 1;
1616                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1617                         index += i;
1618                         break;
1619                 case 0x90:
1620                         index += 1;
1621                         lenlo = vpd[index];
1622                         index += 1;
1623                         lenhi = vpd[index];
1624                         index += 1;
1625                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1626                         if (Length > len - index)
1627                                 Length = len - index;
1628                         while (Length > 0) {
1629                         /* Look for Serial Number */
1630                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1631                                 index += 2;
1632                                 i = vpd[index];
1633                                 index += 1;
1634                                 j = 0;
1635                                 Length -= (3+i);
1636                                 while(i--) {
1637                                         phba->SerialNumber[j++] = vpd[index++];
1638                                         if (j == 31)
1639                                                 break;
1640                                 }
1641                                 phba->SerialNumber[j] = 0;
1642                                 continue;
1643                         }
1644                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1645                                 phba->vpd_flag |= VPD_MODEL_DESC;
1646                                 index += 2;
1647                                 i = vpd[index];
1648                                 index += 1;
1649                                 j = 0;
1650                                 Length -= (3+i);
1651                                 while(i--) {
1652                                         phba->ModelDesc[j++] = vpd[index++];
1653                                         if (j == 255)
1654                                                 break;
1655                                 }
1656                                 phba->ModelDesc[j] = 0;
1657                                 continue;
1658                         }
1659                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1660                                 phba->vpd_flag |= VPD_MODEL_NAME;
1661                                 index += 2;
1662                                 i = vpd[index];
1663                                 index += 1;
1664                                 j = 0;
1665                                 Length -= (3+i);
1666                                 while(i--) {
1667                                         phba->ModelName[j++] = vpd[index++];
1668                                         if (j == 79)
1669                                                 break;
1670                                 }
1671                                 phba->ModelName[j] = 0;
1672                                 continue;
1673                         }
1674                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1675                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1676                                 index += 2;
1677                                 i = vpd[index];
1678                                 index += 1;
1679                                 j = 0;
1680                                 Length -= (3+i);
1681                                 while(i--) {
1682                                         phba->ProgramType[j++] = vpd[index++];
1683                                         if (j == 255)
1684                                                 break;
1685                                 }
1686                                 phba->ProgramType[j] = 0;
1687                                 continue;
1688                         }
1689                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1690                                 phba->vpd_flag |= VPD_PORT;
1691                                 index += 2;
1692                                 i = vpd[index];
1693                                 index += 1;
1694                                 j = 0;
1695                                 Length -= (3+i);
1696                                 while(i--) {
1697                                 phba->Port[j++] = vpd[index++];
1698                                 if (j == 19)
1699                                         break;
1700                                 }
1701                                 phba->Port[j] = 0;
1702                                 continue;
1703                         }
1704                         else {
1705                                 index += 2;
1706                                 i = vpd[index];
1707                                 index += 1;
1708                                 index += i;
1709                                 Length -= (3 + i);
1710                         }
1711                 }
1712                 finished = 0;
1713                 break;
1714                 case 0x78:
1715                         finished = 1;
1716                         break;
1717                 default:
1718                         index ++;
1719                         break;
1720                 }
1721         }
1722
1723         return(1);
1724 }
1725
1726 /**
1727  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1728  * @phba: pointer to lpfc hba data structure.
1729  * @mdp: pointer to the data structure to hold the derived model name.
1730  * @descp: pointer to the data structure to hold the derived description.
1731  *
1732  * This routine retrieves HBA's description based on its registered PCI device
1733  * ID. The @descp passed into this function points to an array of 256 chars. It
1734  * shall be returned with the model name, maximum speed, and the host bus type.
1735  * The @mdp passed into this function points to an array of 80 chars. When the
1736  * function returns, the @mdp will be filled with the model name.
1737  **/
1738 static void
1739 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1740 {
1741         lpfc_vpd_t *vp;
1742         uint16_t dev_id = phba->pcidev->device;
1743         int max_speed;
1744         int GE = 0;
1745         int oneConnect = 0; /* default is not a oneConnect */
1746         struct {
1747                 char *name;
1748                 char *bus;
1749                 char *function;
1750         } m = {"<Unknown>", "", ""};
1751
1752         if (mdp && mdp[0] != '\0'
1753                 && descp && descp[0] != '\0')
1754                 return;
1755
1756         if (phba->lmt & LMT_10Gb)
1757                 max_speed = 10;
1758         else if (phba->lmt & LMT_8Gb)
1759                 max_speed = 8;
1760         else if (phba->lmt & LMT_4Gb)
1761                 max_speed = 4;
1762         else if (phba->lmt & LMT_2Gb)
1763                 max_speed = 2;
1764         else
1765                 max_speed = 1;
1766
1767         vp = &phba->vpd;
1768
1769         switch (dev_id) {
1770         case PCI_DEVICE_ID_FIREFLY:
1771                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1772                 break;
1773         case PCI_DEVICE_ID_SUPERFLY:
1774                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1775                         m = (typeof(m)){"LP7000", "PCI",
1776                                         "Fibre Channel Adapter"};
1777                 else
1778                         m = (typeof(m)){"LP7000E", "PCI",
1779                                         "Fibre Channel Adapter"};
1780                 break;
1781         case PCI_DEVICE_ID_DRAGONFLY:
1782                 m = (typeof(m)){"LP8000", "PCI",
1783                                 "Fibre Channel Adapter"};
1784                 break;
1785         case PCI_DEVICE_ID_CENTAUR:
1786                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1787                         m = (typeof(m)){"LP9002", "PCI",
1788                                         "Fibre Channel Adapter"};
1789                 else
1790                         m = (typeof(m)){"LP9000", "PCI",
1791                                         "Fibre Channel Adapter"};
1792                 break;
1793         case PCI_DEVICE_ID_RFLY:
1794                 m = (typeof(m)){"LP952", "PCI",
1795                                 "Fibre Channel Adapter"};
1796                 break;
1797         case PCI_DEVICE_ID_PEGASUS:
1798                 m = (typeof(m)){"LP9802", "PCI-X",
1799                                 "Fibre Channel Adapter"};
1800                 break;
1801         case PCI_DEVICE_ID_THOR:
1802                 m = (typeof(m)){"LP10000", "PCI-X",
1803                                 "Fibre Channel Adapter"};
1804                 break;
1805         case PCI_DEVICE_ID_VIPER:
1806                 m = (typeof(m)){"LPX1000",  "PCI-X",
1807                                 "Fibre Channel Adapter"};
1808                 break;
1809         case PCI_DEVICE_ID_PFLY:
1810                 m = (typeof(m)){"LP982", "PCI-X",
1811                                 "Fibre Channel Adapter"};
1812                 break;
1813         case PCI_DEVICE_ID_TFLY:
1814                 m = (typeof(m)){"LP1050", "PCI-X",
1815                                 "Fibre Channel Adapter"};
1816                 break;
1817         case PCI_DEVICE_ID_HELIOS:
1818                 m = (typeof(m)){"LP11000", "PCI-X2",
1819                                 "Fibre Channel Adapter"};
1820                 break;
1821         case PCI_DEVICE_ID_HELIOS_SCSP:
1822                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1823                                 "Fibre Channel Adapter"};
1824                 break;
1825         case PCI_DEVICE_ID_HELIOS_DCSP:
1826                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1827                                 "Fibre Channel Adapter"};
1828                 break;
1829         case PCI_DEVICE_ID_NEPTUNE:
1830                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1831                 break;
1832         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1833                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1834                 break;
1835         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1836                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1837                 break;
1838         case PCI_DEVICE_ID_BMID:
1839                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1840                 break;
1841         case PCI_DEVICE_ID_BSMB:
1842                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1843                 break;
1844         case PCI_DEVICE_ID_ZEPHYR:
1845                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1846                 break;
1847         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1848                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1849                 break;
1850         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1851                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1852                 GE = 1;
1853                 break;
1854         case PCI_DEVICE_ID_ZMID:
1855                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1856                 break;
1857         case PCI_DEVICE_ID_ZSMB:
1858                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1859                 break;
1860         case PCI_DEVICE_ID_LP101:
1861                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1862                 break;
1863         case PCI_DEVICE_ID_LP10000S:
1864                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1865                 break;
1866         case PCI_DEVICE_ID_LP11000S:
1867                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1868                 break;
1869         case PCI_DEVICE_ID_LPE11000S:
1870                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1871                 break;
1872         case PCI_DEVICE_ID_SAT:
1873                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1874                 break;
1875         case PCI_DEVICE_ID_SAT_MID:
1876                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1877                 break;
1878         case PCI_DEVICE_ID_SAT_SMB:
1879                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1880                 break;
1881         case PCI_DEVICE_ID_SAT_DCSP:
1882                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1883                 break;
1884         case PCI_DEVICE_ID_SAT_SCSP:
1885                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1886                 break;
1887         case PCI_DEVICE_ID_SAT_S:
1888                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1889                 break;
1890         case PCI_DEVICE_ID_HORNET:
1891                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1892                 GE = 1;
1893                 break;
1894         case PCI_DEVICE_ID_PROTEUS_VF:
1895                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1896                                 "Fibre Channel Adapter"};
1897                 break;
1898         case PCI_DEVICE_ID_PROTEUS_PF:
1899                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1900                                 "Fibre Channel Adapter"};
1901                 break;
1902         case PCI_DEVICE_ID_PROTEUS_S:
1903                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1904                                 "Fibre Channel Adapter"};
1905                 break;
1906         case PCI_DEVICE_ID_TIGERSHARK:
1907                 oneConnect = 1;
1908                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1909                 break;
1910         case PCI_DEVICE_ID_TOMCAT:
1911                 oneConnect = 1;
1912                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1913                 break;
1914         case PCI_DEVICE_ID_FALCON:
1915                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1916                                 "EmulexSecure Fibre"};
1917                 break;
1918         case PCI_DEVICE_ID_BALIUS:
1919                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1920                                 "Fibre Channel Adapter"};
1921                 break;
1922         case PCI_DEVICE_ID_LANCER_FC:
1923                 oneConnect = 1;
1924                 m = (typeof(m)){"Undefined", "PCIe", "Fibre Channel Adapter"};
1925                 break;
1926         case PCI_DEVICE_ID_LANCER_FCOE:
1927                 oneConnect = 1;
1928                 m = (typeof(m)){"Undefined", "PCIe", "FCoE"};
1929                 break;
1930         default:
1931                 m = (typeof(m)){"Unknown", "", ""};
1932                 break;
1933         }
1934
1935         if (mdp && mdp[0] == '\0')
1936                 snprintf(mdp, 79,"%s", m.name);
1937         /* oneConnect hba requires special processing, they are all initiators
1938          * and we put the port number on the end
1939          */
1940         if (descp && descp[0] == '\0') {
1941                 if (oneConnect)
1942                         snprintf(descp, 255,
1943                                 "Emulex OneConnect %s, %s Initiator, Port %s",
1944                                 m.name, m.function,
1945                                 phba->Port);
1946                 else
1947                         snprintf(descp, 255,
1948                                 "Emulex %s %d%s %s %s",
1949                                 m.name, max_speed, (GE) ? "GE" : "Gb",
1950                                 m.bus, m.function);
1951         }
1952 }
1953
1954 /**
1955  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1956  * @phba: pointer to lpfc hba data structure.
1957  * @pring: pointer to a IOCB ring.
1958  * @cnt: the number of IOCBs to be posted to the IOCB ring.
1959  *
1960  * This routine posts a given number of IOCBs with the associated DMA buffer
1961  * descriptors specified by the cnt argument to the given IOCB ring.
1962  *
1963  * Return codes
1964  *   The number of IOCBs NOT able to be posted to the IOCB ring.
1965  **/
1966 int
1967 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1968 {
1969         IOCB_t *icmd;
1970         struct lpfc_iocbq *iocb;
1971         struct lpfc_dmabuf *mp1, *mp2;
1972
1973         cnt += pring->missbufcnt;
1974
1975         /* While there are buffers to post */
1976         while (cnt > 0) {
1977                 /* Allocate buffer for  command iocb */
1978                 iocb = lpfc_sli_get_iocbq(phba);
1979                 if (iocb == NULL) {
1980                         pring->missbufcnt = cnt;
1981                         return cnt;
1982                 }
1983                 icmd = &iocb->iocb;
1984
1985                 /* 2 buffers can be posted per command */
1986                 /* Allocate buffer to post */
1987                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1988                 if (mp1)
1989                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1990                 if (!mp1 || !mp1->virt) {
1991                         kfree(mp1);
1992                         lpfc_sli_release_iocbq(phba, iocb);
1993                         pring->missbufcnt = cnt;
1994                         return cnt;
1995                 }
1996
1997                 INIT_LIST_HEAD(&mp1->list);
1998                 /* Allocate buffer to post */
1999                 if (cnt > 1) {
2000                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2001                         if (mp2)
2002                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2003                                                             &mp2->phys);
2004                         if (!mp2 || !mp2->virt) {
2005                                 kfree(mp2);
2006                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2007                                 kfree(mp1);
2008                                 lpfc_sli_release_iocbq(phba, iocb);
2009                                 pring->missbufcnt = cnt;
2010                                 return cnt;
2011                         }
2012
2013                         INIT_LIST_HEAD(&mp2->list);
2014                 } else {
2015                         mp2 = NULL;
2016                 }
2017
2018                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2019                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2020                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2021                 icmd->ulpBdeCount = 1;
2022                 cnt--;
2023                 if (mp2) {
2024                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2025                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2026                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2027                         cnt--;
2028                         icmd->ulpBdeCount = 2;
2029                 }
2030
2031                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2032                 icmd->ulpLe = 1;
2033
2034                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2035                     IOCB_ERROR) {
2036                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2037                         kfree(mp1);
2038                         cnt++;
2039                         if (mp2) {
2040                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2041                                 kfree(mp2);
2042                                 cnt++;
2043                         }
2044                         lpfc_sli_release_iocbq(phba, iocb);
2045                         pring->missbufcnt = cnt;
2046                         return cnt;
2047                 }
2048                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2049                 if (mp2)
2050                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2051         }
2052         pring->missbufcnt = 0;
2053         return 0;
2054 }
2055
2056 /**
2057  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2058  * @phba: pointer to lpfc hba data structure.
2059  *
2060  * This routine posts initial receive IOCB buffers to the ELS ring. The
2061  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2062  * set to 64 IOCBs.
2063  *
2064  * Return codes
2065  *   0 - success (currently always success)
2066  **/
2067 static int
2068 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2069 {
2070         struct lpfc_sli *psli = &phba->sli;
2071
2072         /* Ring 0, ELS / CT buffers */
2073         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2074         /* Ring 2 - FCP no buffers needed */
2075
2076         return 0;
2077 }
2078
2079 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2080
2081 /**
2082  * lpfc_sha_init - Set up initial array of hash table entries
2083  * @HashResultPointer: pointer to an array as hash table.
2084  *
2085  * This routine sets up the initial values to the array of hash table entries
2086  * for the LC HBAs.
2087  **/
2088 static void
2089 lpfc_sha_init(uint32_t * HashResultPointer)
2090 {
2091         HashResultPointer[0] = 0x67452301;
2092         HashResultPointer[1] = 0xEFCDAB89;
2093         HashResultPointer[2] = 0x98BADCFE;
2094         HashResultPointer[3] = 0x10325476;
2095         HashResultPointer[4] = 0xC3D2E1F0;
2096 }
2097
2098 /**
2099  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2100  * @HashResultPointer: pointer to an initial/result hash table.
2101  * @HashWorkingPointer: pointer to an working hash table.
2102  *
2103  * This routine iterates an initial hash table pointed by @HashResultPointer
2104  * with the values from the working hash table pointeed by @HashWorkingPointer.
2105  * The results are putting back to the initial hash table, returned through
2106  * the @HashResultPointer as the result hash table.
2107  **/
2108 static void
2109 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2110 {
2111         int t;
2112         uint32_t TEMP;
2113         uint32_t A, B, C, D, E;
2114         t = 16;
2115         do {
2116                 HashWorkingPointer[t] =
2117                     S(1,
2118                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2119                                                                      8] ^
2120                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2121         } while (++t <= 79);
2122         t = 0;
2123         A = HashResultPointer[0];
2124         B = HashResultPointer[1];
2125         C = HashResultPointer[2];
2126         D = HashResultPointer[3];
2127         E = HashResultPointer[4];
2128
2129         do {
2130                 if (t < 20) {
2131                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2132                 } else if (t < 40) {
2133                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2134                 } else if (t < 60) {
2135                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2136                 } else {
2137                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2138                 }
2139                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2140                 E = D;
2141                 D = C;
2142                 C = S(30, B);
2143                 B = A;
2144                 A = TEMP;
2145         } while (++t <= 79);
2146
2147         HashResultPointer[0] += A;
2148         HashResultPointer[1] += B;
2149         HashResultPointer[2] += C;
2150         HashResultPointer[3] += D;
2151         HashResultPointer[4] += E;
2152
2153 }
2154
2155 /**
2156  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2157  * @RandomChallenge: pointer to the entry of host challenge random number array.
2158  * @HashWorking: pointer to the entry of the working hash array.
2159  *
2160  * This routine calculates the working hash array referred by @HashWorking
2161  * from the challenge random numbers associated with the host, referred by
2162  * @RandomChallenge. The result is put into the entry of the working hash
2163  * array and returned by reference through @HashWorking.
2164  **/
2165 static void
2166 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2167 {
2168         *HashWorking = (*RandomChallenge ^ *HashWorking);
2169 }
2170
2171 /**
2172  * lpfc_hba_init - Perform special handling for LC HBA initialization
2173  * @phba: pointer to lpfc hba data structure.
2174  * @hbainit: pointer to an array of unsigned 32-bit integers.
2175  *
2176  * This routine performs the special handling for LC HBA initialization.
2177  **/
2178 void
2179 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2180 {
2181         int t;
2182         uint32_t *HashWorking;
2183         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2184
2185         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2186         if (!HashWorking)
2187                 return;
2188
2189         HashWorking[0] = HashWorking[78] = *pwwnn++;
2190         HashWorking[1] = HashWorking[79] = *pwwnn;
2191
2192         for (t = 0; t < 7; t++)
2193                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2194
2195         lpfc_sha_init(hbainit);
2196         lpfc_sha_iterate(hbainit, HashWorking);
2197         kfree(HashWorking);
2198 }
2199
2200 /**
2201  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2202  * @vport: pointer to a virtual N_Port data structure.
2203  *
2204  * This routine performs the necessary cleanups before deleting the @vport.
2205  * It invokes the discovery state machine to perform necessary state
2206  * transitions and to release the ndlps associated with the @vport. Note,
2207  * the physical port is treated as @vport 0.
2208  **/
2209 void
2210 lpfc_cleanup(struct lpfc_vport *vport)
2211 {
2212         struct lpfc_hba   *phba = vport->phba;
2213         struct lpfc_nodelist *ndlp, *next_ndlp;
2214         int i = 0;
2215
2216         if (phba->link_state > LPFC_LINK_DOWN)
2217                 lpfc_port_link_failure(vport);
2218
2219         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2220                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2221                         ndlp = lpfc_enable_node(vport, ndlp,
2222                                                 NLP_STE_UNUSED_NODE);
2223                         if (!ndlp)
2224                                 continue;
2225                         spin_lock_irq(&phba->ndlp_lock);
2226                         NLP_SET_FREE_REQ(ndlp);
2227                         spin_unlock_irq(&phba->ndlp_lock);
2228                         /* Trigger the release of the ndlp memory */
2229                         lpfc_nlp_put(ndlp);
2230                         continue;
2231                 }
2232                 spin_lock_irq(&phba->ndlp_lock);
2233                 if (NLP_CHK_FREE_REQ(ndlp)) {
2234                         /* The ndlp should not be in memory free mode already */
2235                         spin_unlock_irq(&phba->ndlp_lock);
2236                         continue;
2237                 } else
2238                         /* Indicate request for freeing ndlp memory */
2239                         NLP_SET_FREE_REQ(ndlp);
2240                 spin_unlock_irq(&phba->ndlp_lock);
2241
2242                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2243                     ndlp->nlp_DID == Fabric_DID) {
2244                         /* Just free up ndlp with Fabric_DID for vports */
2245                         lpfc_nlp_put(ndlp);
2246                         continue;
2247                 }
2248
2249                 if (ndlp->nlp_type & NLP_FABRIC)
2250                         lpfc_disc_state_machine(vport, ndlp, NULL,
2251                                         NLP_EVT_DEVICE_RECOVERY);
2252
2253                 lpfc_disc_state_machine(vport, ndlp, NULL,
2254                                              NLP_EVT_DEVICE_RM);
2255
2256         }
2257
2258         /* At this point, ALL ndlp's should be gone
2259          * because of the previous NLP_EVT_DEVICE_RM.
2260          * Lets wait for this to happen, if needed.
2261          */
2262         while (!list_empty(&vport->fc_nodes)) {
2263                 if (i++ > 3000) {
2264                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2265                                 "0233 Nodelist not empty\n");
2266                         list_for_each_entry_safe(ndlp, next_ndlp,
2267                                                 &vport->fc_nodes, nlp_listp) {
2268                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2269                                                 LOG_NODE,
2270                                                 "0282 did:x%x ndlp:x%p "
2271                                                 "usgmap:x%x refcnt:%d\n",
2272                                                 ndlp->nlp_DID, (void *)ndlp,
2273                                                 ndlp->nlp_usg_map,
2274                                                 atomic_read(
2275                                                         &ndlp->kref.refcount));
2276                         }
2277                         break;
2278                 }
2279
2280                 /* Wait for any activity on ndlps to settle */
2281                 msleep(10);
2282         }
2283 }
2284
2285 /**
2286  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2287  * @vport: pointer to a virtual N_Port data structure.
2288  *
2289  * This routine stops all the timers associated with a @vport. This function
2290  * is invoked before disabling or deleting a @vport. Note that the physical
2291  * port is treated as @vport 0.
2292  **/
2293 void
2294 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2295 {
2296         del_timer_sync(&vport->els_tmofunc);
2297         del_timer_sync(&vport->fc_fdmitmo);
2298         lpfc_can_disctmo(vport);
2299         return;
2300 }
2301
2302 /**
2303  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2304  * @phba: pointer to lpfc hba data structure.
2305  *
2306  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2307  * caller of this routine should already hold the host lock.
2308  **/
2309 void
2310 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2311 {
2312         /* Clear pending FCF rediscovery wait flag */
2313         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2314
2315         /* Now, try to stop the timer */
2316         del_timer(&phba->fcf.redisc_wait);
2317 }
2318
2319 /**
2320  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2321  * @phba: pointer to lpfc hba data structure.
2322  *
2323  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2324  * checks whether the FCF rediscovery wait timer is pending with the host
2325  * lock held before proceeding with disabling the timer and clearing the
2326  * wait timer pendig flag.
2327  **/
2328 void
2329 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2330 {
2331         spin_lock_irq(&phba->hbalock);
2332         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2333                 /* FCF rediscovery timer already fired or stopped */
2334                 spin_unlock_irq(&phba->hbalock);
2335                 return;
2336         }
2337         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2338         /* Clear failover in progress flags */
2339         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2340         spin_unlock_irq(&phba->hbalock);
2341 }
2342
2343 /**
2344  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2345  * @phba: pointer to lpfc hba data structure.
2346  *
2347  * This routine stops all the timers associated with a HBA. This function is
2348  * invoked before either putting a HBA offline or unloading the driver.
2349  **/
2350 void
2351 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2352 {
2353         lpfc_stop_vport_timers(phba->pport);
2354         del_timer_sync(&phba->sli.mbox_tmo);
2355         del_timer_sync(&phba->fabric_block_timer);
2356         del_timer_sync(&phba->eratt_poll);
2357         del_timer_sync(&phba->hb_tmofunc);
2358         phba->hb_outstanding = 0;
2359
2360         switch (phba->pci_dev_grp) {
2361         case LPFC_PCI_DEV_LP:
2362                 /* Stop any LightPulse device specific driver timers */
2363                 del_timer_sync(&phba->fcp_poll_timer);
2364                 break;
2365         case LPFC_PCI_DEV_OC:
2366                 /* Stop any OneConnect device sepcific driver timers */
2367                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2368                 break;
2369         default:
2370                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2371                                 "0297 Invalid device group (x%x)\n",
2372                                 phba->pci_dev_grp);
2373                 break;
2374         }
2375         return;
2376 }
2377
2378 /**
2379  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2380  * @phba: pointer to lpfc hba data structure.
2381  *
2382  * This routine marks a HBA's management interface as blocked. Once the HBA's
2383  * management interface is marked as blocked, all the user space access to
2384  * the HBA, whether they are from sysfs interface or libdfc interface will
2385  * all be blocked. The HBA is set to block the management interface when the
2386  * driver prepares the HBA interface for online or offline.
2387  **/
2388 static void
2389 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2390 {
2391         unsigned long iflag;
2392         uint8_t actcmd = MBX_HEARTBEAT;
2393         unsigned long timeout;
2394
2395
2396         spin_lock_irqsave(&phba->hbalock, iflag);
2397         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2398         if (phba->sli.mbox_active)
2399                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2400         spin_unlock_irqrestore(&phba->hbalock, iflag);
2401         /* Determine how long we might wait for the active mailbox
2402          * command to be gracefully completed by firmware.
2403          */
2404         timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2405                         jiffies;
2406         /* Wait for the outstnading mailbox command to complete */
2407         while (phba->sli.mbox_active) {
2408                 /* Check active mailbox complete status every 2ms */
2409                 msleep(2);
2410                 if (time_after(jiffies, timeout)) {
2411                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2412                                 "2813 Mgmt IO is Blocked %x "
2413                                 "- mbox cmd %x still active\n",
2414                                 phba->sli.sli_flag, actcmd);
2415                         break;
2416                 }
2417         }
2418 }
2419
2420 /**
2421  * lpfc_online - Initialize and bring a HBA online
2422  * @phba: pointer to lpfc hba data structure.
2423  *
2424  * This routine initializes the HBA and brings a HBA online. During this
2425  * process, the management interface is blocked to prevent user space access
2426  * to the HBA interfering with the driver initialization.
2427  *
2428  * Return codes
2429  *   0 - successful
2430  *   1 - failed
2431  **/
2432 int
2433 lpfc_online(struct lpfc_hba *phba)
2434 {
2435         struct lpfc_vport *vport;
2436         struct lpfc_vport **vports;
2437         int i;
2438
2439         if (!phba)
2440                 return 0;
2441         vport = phba->pport;
2442
2443         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2444                 return 0;
2445
2446         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2447                         "0458 Bring Adapter online\n");
2448
2449         lpfc_block_mgmt_io(phba);
2450
2451         if (!lpfc_sli_queue_setup(phba)) {
2452                 lpfc_unblock_mgmt_io(phba);
2453                 return 1;
2454         }
2455
2456         if (phba->sli_rev == LPFC_SLI_REV4) {
2457                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2458                         lpfc_unblock_mgmt_io(phba);
2459                         return 1;
2460                 }
2461         } else {
2462                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2463                         lpfc_unblock_mgmt_io(phba);
2464                         return 1;
2465                 }
2466         }
2467
2468         vports = lpfc_create_vport_work_array(phba);
2469         if (vports != NULL)
2470                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2471                         struct Scsi_Host *shost;
2472                         shost = lpfc_shost_from_vport(vports[i]);
2473                         spin_lock_irq(shost->host_lock);
2474                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2475                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2476                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2477                         if (phba->sli_rev == LPFC_SLI_REV4)
2478                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2479                         spin_unlock_irq(shost->host_lock);
2480                 }
2481                 lpfc_destroy_vport_work_array(phba, vports);
2482
2483         lpfc_unblock_mgmt_io(phba);
2484         return 0;
2485 }
2486
2487 /**
2488  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2489  * @phba: pointer to lpfc hba data structure.
2490  *
2491  * This routine marks a HBA's management interface as not blocked. Once the
2492  * HBA's management interface is marked as not blocked, all the user space
2493  * access to the HBA, whether they are from sysfs interface or libdfc
2494  * interface will be allowed. The HBA is set to block the management interface
2495  * when the driver prepares the HBA interface for online or offline and then
2496  * set to unblock the management interface afterwards.
2497  **/
2498 void
2499 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2500 {
2501         unsigned long iflag;
2502
2503         spin_lock_irqsave(&phba->hbalock, iflag);
2504         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2505         spin_unlock_irqrestore(&phba->hbalock, iflag);
2506 }
2507
2508 /**
2509  * lpfc_offline_prep - Prepare a HBA to be brought offline
2510  * @phba: pointer to lpfc hba data structure.
2511  *
2512  * This routine is invoked to prepare a HBA to be brought offline. It performs
2513  * unregistration login to all the nodes on all vports and flushes the mailbox
2514  * queue to make it ready to be brought offline.
2515  **/
2516 void
2517 lpfc_offline_prep(struct lpfc_hba * phba)
2518 {
2519         struct lpfc_vport *vport = phba->pport;
2520         struct lpfc_nodelist  *ndlp, *next_ndlp;
2521         struct lpfc_vport **vports;
2522         struct Scsi_Host *shost;
2523         int i;
2524
2525         if (vport->fc_flag & FC_OFFLINE_MODE)
2526                 return;
2527
2528         lpfc_block_mgmt_io(phba);
2529
2530         lpfc_linkdown(phba);
2531
2532         /* Issue an unreg_login to all nodes on all vports */
2533         vports = lpfc_create_vport_work_array(phba);
2534         if (vports != NULL) {
2535                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2536                         if (vports[i]->load_flag & FC_UNLOADING)
2537                                 continue;
2538                         shost = lpfc_shost_from_vport(vports[i]);
2539                         spin_lock_irq(shost->host_lock);
2540                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2541                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2542                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2543                         spin_unlock_irq(shost->host_lock);
2544
2545                         shost = lpfc_shost_from_vport(vports[i]);
2546                         list_for_each_entry_safe(ndlp, next_ndlp,
2547                                                  &vports[i]->fc_nodes,
2548                                                  nlp_listp) {
2549                                 if (!NLP_CHK_NODE_ACT(ndlp))
2550                                         continue;
2551                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2552                                         continue;
2553                                 if (ndlp->nlp_type & NLP_FABRIC) {
2554                                         lpfc_disc_state_machine(vports[i], ndlp,
2555                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2556                                         lpfc_disc_state_machine(vports[i], ndlp,
2557                                                 NULL, NLP_EVT_DEVICE_RM);
2558                                 }
2559                                 spin_lock_irq(shost->host_lock);
2560                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2561                                 spin_unlock_irq(shost->host_lock);
2562                                 lpfc_unreg_rpi(vports[i], ndlp);
2563                         }
2564                 }
2565         }
2566         lpfc_destroy_vport_work_array(phba, vports);
2567
2568         lpfc_sli_mbox_sys_shutdown(phba);
2569 }
2570
2571 /**
2572  * lpfc_offline - Bring a HBA offline
2573  * @phba: pointer to lpfc hba data structure.
2574  *
2575  * This routine actually brings a HBA offline. It stops all the timers
2576  * associated with the HBA, brings down the SLI layer, and eventually
2577  * marks the HBA as in offline state for the upper layer protocol.
2578  **/
2579 void
2580 lpfc_offline(struct lpfc_hba *phba)
2581 {
2582         struct Scsi_Host  *shost;
2583         struct lpfc_vport **vports;
2584         int i;
2585
2586         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2587                 return;
2588
2589         /* stop port and all timers associated with this hba */
2590         lpfc_stop_port(phba);
2591         vports = lpfc_create_vport_work_array(phba);
2592         if (vports != NULL)
2593                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2594                         lpfc_stop_vport_timers(vports[i]);
2595         lpfc_destroy_vport_work_array(phba, vports);
2596         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2597                         "0460 Bring Adapter offline\n");
2598         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2599            now.  */
2600         lpfc_sli_hba_down(phba);
2601         spin_lock_irq(&phba->hbalock);
2602         phba->work_ha = 0;
2603         spin_unlock_irq(&phba->hbalock);
2604         vports = lpfc_create_vport_work_array(phba);
2605         if (vports != NULL)
2606                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2607                         shost = lpfc_shost_from_vport(vports[i]);
2608                         spin_lock_irq(shost->host_lock);
2609                         vports[i]->work_port_events = 0;
2610                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2611                         spin_unlock_irq(shost->host_lock);
2612                 }
2613         lpfc_destroy_vport_work_array(phba, vports);
2614 }
2615
2616 /**
2617  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2618  * @phba: pointer to lpfc hba data structure.
2619  *
2620  * This routine is to free all the SCSI buffers and IOCBs from the driver
2621  * list back to kernel. It is called from lpfc_pci_remove_one to free
2622  * the internal resources before the device is removed from the system.
2623  *
2624  * Return codes
2625  *   0 - successful (for now, it always returns 0)
2626  **/
2627 static int
2628 lpfc_scsi_free(struct lpfc_hba *phba)
2629 {
2630         struct lpfc_scsi_buf *sb, *sb_next;
2631         struct lpfc_iocbq *io, *io_next;
2632
2633         spin_lock_irq(&phba->hbalock);
2634         /* Release all the lpfc_scsi_bufs maintained by this host. */
2635         spin_lock(&phba->scsi_buf_list_lock);
2636         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2637                 list_del(&sb->list);
2638                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2639                               sb->dma_handle);
2640                 kfree(sb);
2641                 phba->total_scsi_bufs--;
2642         }
2643         spin_unlock(&phba->scsi_buf_list_lock);
2644
2645         /* Release all the lpfc_iocbq entries maintained by this host. */
2646         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2647                 list_del(&io->list);
2648                 kfree(io);
2649                 phba->total_iocbq_bufs--;
2650         }
2651         spin_unlock_irq(&phba->hbalock);
2652         return 0;
2653 }
2654
2655 /**
2656  * lpfc_create_port - Create an FC port
2657  * @phba: pointer to lpfc hba data structure.
2658  * @instance: a unique integer ID to this FC port.
2659  * @dev: pointer to the device data structure.
2660  *
2661  * This routine creates a FC port for the upper layer protocol. The FC port
2662  * can be created on top of either a physical port or a virtual port provided
2663  * by the HBA. This routine also allocates a SCSI host data structure (shost)
2664  * and associates the FC port created before adding the shost into the SCSI
2665  * layer.
2666  *
2667  * Return codes
2668  *   @vport - pointer to the virtual N_Port data structure.
2669  *   NULL - port create failed.
2670  **/
2671 struct lpfc_vport *
2672 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2673 {
2674         struct lpfc_vport *vport;
2675         struct Scsi_Host  *shost;
2676         int error = 0;
2677
2678         if (dev != &phba->pcidev->dev)
2679                 shost = scsi_host_alloc(&lpfc_vport_template,
2680                                         sizeof(struct lpfc_vport));
2681         else
2682                 shost = scsi_host_alloc(&lpfc_template,
2683                                         sizeof(struct lpfc_vport));
2684         if (!shost)
2685                 goto out;
2686
2687         vport = (struct lpfc_vport *) shost->hostdata;
2688         vport->phba = phba;
2689         vport->load_flag |= FC_LOADING;
2690         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2691         vport->fc_rscn_flush = 0;
2692
2693         lpfc_get_vport_cfgparam(vport);
2694         shost->unique_id = instance;
2695         shost->max_id = LPFC_MAX_TARGET;
2696         shost->max_lun = vport->cfg_max_luns;
2697         shost->this_id = -1;
2698         shost->max_cmd_len = 16;
2699         if (phba->sli_rev == LPFC_SLI_REV4) {
2700                 shost->dma_boundary =
2701                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2702                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2703         }
2704
2705         /*
2706          * Set initial can_queue value since 0 is no longer supported and
2707          * scsi_add_host will fail. This will be adjusted later based on the
2708          * max xri value determined in hba setup.
2709          */
2710         shost->can_queue = phba->cfg_hba_queue_depth - 10;
2711         if (dev != &phba->pcidev->dev) {
2712                 shost->transportt = lpfc_vport_transport_template;
2713                 vport->port_type = LPFC_NPIV_PORT;
2714         } else {
2715                 shost->transportt = lpfc_transport_template;
2716                 vport->port_type = LPFC_PHYSICAL_PORT;
2717         }
2718
2719         /* Initialize all internally managed lists. */
2720         INIT_LIST_HEAD(&vport->fc_nodes);
2721         INIT_LIST_HEAD(&vport->rcv_buffer_list);
2722         spin_lock_init(&vport->work_port_lock);
2723
2724         init_timer(&vport->fc_disctmo);
2725         vport->fc_disctmo.function = lpfc_disc_timeout;
2726         vport->fc_disctmo.data = (unsigned long)vport;
2727
2728         init_timer(&vport->fc_fdmitmo);
2729         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2730         vport->fc_fdmitmo.data = (unsigned long)vport;
2731
2732         init_timer(&vport->els_tmofunc);
2733         vport->els_tmofunc.function = lpfc_els_timeout;
2734         vport->els_tmofunc.data = (unsigned long)vport;
2735         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2736         if (error)
2737                 goto out_put_shost;
2738
2739         spin_lock_irq(&phba->hbalock);
2740         list_add_tail(&vport->listentry, &phba->port_list);
2741         spin_unlock_irq(&phba->hbalock);
2742         return vport;
2743
2744 out_put_shost:
2745         scsi_host_put(shost);
2746 out:
2747         return NULL;
2748 }
2749
2750 /**
2751  * destroy_port -  destroy an FC port
2752  * @vport: pointer to an lpfc virtual N_Port data structure.
2753  *
2754  * This routine destroys a FC port from the upper layer protocol. All the
2755  * resources associated with the port are released.
2756  **/
2757 void
2758 destroy_port(struct lpfc_vport *vport)
2759 {
2760         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2761         struct lpfc_hba  *phba = vport->phba;
2762
2763         lpfc_debugfs_terminate(vport);
2764         fc_remove_host(shost);
2765         scsi_remove_host(shost);
2766
2767         spin_lock_irq(&phba->hbalock);
2768         list_del_init(&vport->listentry);
2769         spin_unlock_irq(&phba->hbalock);
2770
2771         lpfc_cleanup(vport);
2772         return;
2773 }
2774
2775 /**
2776  * lpfc_get_instance - Get a unique integer ID
2777  *
2778  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2779  * uses the kernel idr facility to perform the task.
2780  *
2781  * Return codes:
2782  *   instance - a unique integer ID allocated as the new instance.
2783  *   -1 - lpfc get instance failed.
2784  **/
2785 int
2786 lpfc_get_instance(void)
2787 {
2788         int instance = 0;
2789
2790         /* Assign an unused number */
2791         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2792                 return -1;
2793         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2794                 return -1;
2795         return instance;
2796 }
2797
2798 /**
2799  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2800  * @shost: pointer to SCSI host data structure.
2801  * @time: elapsed time of the scan in jiffies.
2802  *
2803  * This routine is called by the SCSI layer with a SCSI host to determine
2804  * whether the scan host is finished.
2805  *
2806  * Note: there is no scan_start function as adapter initialization will have
2807  * asynchronously kicked off the link initialization.
2808  *
2809  * Return codes
2810  *   0 - SCSI host scan is not over yet.
2811  *   1 - SCSI host scan is over.
2812  **/
2813 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2814 {
2815         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2816         struct lpfc_hba   *phba = vport->phba;
2817         int stat = 0;
2818
2819         spin_lock_irq(shost->host_lock);
2820
2821         if (vport->load_flag & FC_UNLOADING) {
2822                 stat = 1;
2823                 goto finished;
2824         }
2825         if (time >= 30 * HZ) {
2826                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2827                                 "0461 Scanning longer than 30 "
2828                                 "seconds.  Continuing initialization\n");
2829                 stat = 1;
2830                 goto finished;
2831         }
2832         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2833                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2834                                 "0465 Link down longer than 15 "
2835                                 "seconds.  Continuing initialization\n");
2836                 stat = 1;
2837                 goto finished;
2838         }
2839
2840         if (vport->port_state != LPFC_VPORT_READY)
2841                 goto finished;
2842         if (vport->num_disc_nodes || vport->fc_prli_sent)
2843                 goto finished;
2844         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2845                 goto finished;
2846         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2847                 goto finished;
2848
2849         stat = 1;
2850
2851 finished:
2852         spin_unlock_irq(shost->host_lock);
2853         return stat;
2854 }
2855
2856 /**
2857  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2858  * @shost: pointer to SCSI host data structure.
2859  *
2860  * This routine initializes a given SCSI host attributes on a FC port. The
2861  * SCSI host can be either on top of a physical port or a virtual port.
2862  **/
2863 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2864 {
2865         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2866         struct lpfc_hba   *phba = vport->phba;
2867         /*
2868          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2869          */
2870
2871         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2872         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2873         fc_host_supported_classes(shost) = FC_COS_CLASS3;
2874
2875         memset(fc_host_supported_fc4s(shost), 0,
2876                sizeof(fc_host_supported_fc4s(shost)));
2877         fc_host_supported_fc4s(shost)[2] = 1;
2878         fc_host_supported_fc4s(shost)[7] = 1;
2879
2880         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2881                                  sizeof fc_host_symbolic_name(shost));
2882
2883         fc_host_supported_speeds(shost) = 0;
2884         if (phba->lmt & LMT_10Gb)
2885                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2886         if (phba->lmt & LMT_8Gb)
2887                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2888         if (phba->lmt & LMT_4Gb)
2889                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2890         if (phba->lmt & LMT_2Gb)
2891                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2892         if (phba->lmt & LMT_1Gb)
2893                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2894
2895         fc_host_maxframe_size(shost) =
2896                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2897                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2898
2899         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2900
2901         /* This value is also unchanging */
2902         memset(fc_host_active_fc4s(shost), 0,
2903                sizeof(fc_host_active_fc4s(shost)));
2904         fc_host_active_fc4s(shost)[2] = 1;
2905         fc_host_active_fc4s(shost)[7] = 1;
2906
2907         fc_host_max_npiv_vports(shost) = phba->max_vpi;
2908         spin_lock_irq(shost->host_lock);
2909         vport->load_flag &= ~FC_LOADING;
2910         spin_unlock_irq(shost->host_lock);
2911 }
2912
2913 /**
2914  * lpfc_stop_port_s3 - Stop SLI3 device port
2915  * @phba: pointer to lpfc hba data structure.
2916  *
2917  * This routine is invoked to stop an SLI3 device port, it stops the device
2918  * from generating interrupts and stops the device driver's timers for the
2919  * device.
2920  **/
2921 static void
2922 lpfc_stop_port_s3(struct lpfc_hba *phba)
2923 {
2924         /* Clear all interrupt enable conditions */
2925         writel(0, phba->HCregaddr);
2926         readl(phba->HCregaddr); /* flush */
2927         /* Clear all pending interrupts */
2928         writel(0xffffffff, phba->HAregaddr);
2929         readl(phba->HAregaddr); /* flush */
2930
2931         /* Reset some HBA SLI setup states */
2932         lpfc_stop_hba_timers(phba);
2933         phba->pport->work_port_events = 0;
2934 }
2935
2936 /**
2937  * lpfc_stop_port_s4 - Stop SLI4 device port
2938  * @phba: pointer to lpfc hba data structure.
2939  *
2940  * This routine is invoked to stop an SLI4 device port, it stops the device
2941  * from generating interrupts and stops the device driver's timers for the
2942  * device.
2943  **/
2944 static void
2945 lpfc_stop_port_s4(struct lpfc_hba *phba)
2946 {
2947         /* Reset some HBA SLI4 setup states */
2948         lpfc_stop_hba_timers(phba);
2949         phba->pport->work_port_events = 0;
2950         phba->sli4_hba.intr_enable = 0;
2951 }
2952
2953 /**
2954  * lpfc_stop_port - Wrapper function for stopping hba port
2955  * @phba: Pointer to HBA context object.
2956  *
2957  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2958  * the API jump table function pointer from the lpfc_hba struct.
2959  **/
2960 void
2961 lpfc_stop_port(struct lpfc_hba *phba)
2962 {
2963         phba->lpfc_stop_port(phba);
2964 }
2965
2966 /**
2967  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2968  * @phba: Pointer to hba for which this call is being executed.
2969  *
2970  * This routine starts the timer waiting for the FCF rediscovery to complete.
2971  **/
2972 void
2973 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
2974 {
2975         unsigned long fcf_redisc_wait_tmo =
2976                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
2977         /* Start fcf rediscovery wait period timer */
2978         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
2979         spin_lock_irq(&phba->hbalock);
2980         /* Allow action to new fcf asynchronous event */
2981         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2982         /* Mark the FCF rediscovery pending state */
2983         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
2984         spin_unlock_irq(&phba->hbalock);
2985 }
2986
2987 /**
2988  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2989  * @ptr: Map to lpfc_hba data structure pointer.
2990  *
2991  * This routine is invoked when waiting for FCF table rediscover has been
2992  * timed out. If new FCF record(s) has (have) been discovered during the
2993  * wait period, a new FCF event shall be added to the FCOE async event
2994  * list, and then worker thread shall be waked up for processing from the
2995  * worker thread context.
2996  **/
2997 void
2998 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
2999 {
3000         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3001
3002         /* Don't send FCF rediscovery event if timer cancelled */
3003         spin_lock_irq(&phba->hbalock);
3004         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3005                 spin_unlock_irq(&phba->hbalock);
3006                 return;
3007         }
3008         /* Clear FCF rediscovery timer pending flag */
3009         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3010         /* FCF rediscovery event to worker thread */
3011         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3012         spin_unlock_irq(&phba->hbalock);
3013         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3014                         "2776 FCF rediscover quiescent timer expired\n");
3015         /* wake up worker thread */
3016         lpfc_worker_wake_up(phba);
3017 }
3018
3019 /**
3020  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3021  * @phba: pointer to lpfc hba data structure.
3022  * @acqe_link: pointer to the async link completion queue entry.
3023  *
3024  * This routine is to parse the SLI4 link-attention link fault code and
3025  * translate it into the base driver's read link attention mailbox command
3026  * status.
3027  *
3028  * Return: Link-attention status in terms of base driver's coding.
3029  **/
3030 static uint16_t
3031 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3032                            struct lpfc_acqe_link *acqe_link)
3033 {
3034         uint16_t latt_fault;
3035
3036         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3037         case LPFC_ASYNC_LINK_FAULT_NONE:
3038         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3039         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3040                 latt_fault = 0;
3041                 break;
3042         default:
3043                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3044                                 "0398 Invalid link fault code: x%x\n",
3045                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3046                 latt_fault = MBXERR_ERROR;
3047                 break;
3048         }
3049         return latt_fault;
3050 }
3051
3052 /**
3053  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3054  * @phba: pointer to lpfc hba data structure.
3055  * @acqe_link: pointer to the async link completion queue entry.
3056  *
3057  * This routine is to parse the SLI4 link attention type and translate it
3058  * into the base driver's link attention type coding.
3059  *
3060  * Return: Link attention type in terms of base driver's coding.
3061  **/
3062 static uint8_t
3063 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3064                           struct lpfc_acqe_link *acqe_link)
3065 {
3066         uint8_t att_type;
3067
3068         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3069         case LPFC_ASYNC_LINK_STATUS_DOWN:
3070         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3071                 att_type = LPFC_ATT_LINK_DOWN;
3072                 break;
3073         case LPFC_ASYNC_LINK_STATUS_UP:
3074                 /* Ignore physical link up events - wait for logical link up */
3075                 att_type = LPFC_ATT_RESERVED;
3076                 break;
3077         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3078                 att_type = LPFC_ATT_LINK_UP;
3079                 break;
3080         default:
3081                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3082                                 "0399 Invalid link attention type: x%x\n",
3083                                 bf_get(lpfc_acqe_link_status, acqe_link));
3084                 att_type = LPFC_ATT_RESERVED;
3085                 break;
3086         }
3087         return att_type;
3088 }
3089
3090 /**
3091  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3092  * @phba: pointer to lpfc hba data structure.
3093  * @acqe_link: pointer to the async link completion queue entry.
3094  *
3095  * This routine is to parse the SLI4 link-attention link speed and translate
3096  * it into the base driver's link-attention link speed coding.
3097  *
3098  * Return: Link-attention link speed in terms of base driver's coding.
3099  **/
3100 static uint8_t
3101 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3102                                 struct lpfc_acqe_link *acqe_link)
3103 {
3104         uint8_t link_speed;
3105
3106         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3107         case LPFC_ASYNC_LINK_SPEED_ZERO:
3108         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3109         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3110                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3111                 break;
3112         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3113                 link_speed = LPFC_LINK_SPEED_1GHZ;
3114                 break;
3115         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3116                 link_speed = LPFC_LINK_SPEED_10GHZ;
3117                 break;
3118         default:
3119                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3120                                 "0483 Invalid link-attention link speed: x%x\n",
3121                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3122                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3123                 break;
3124         }
3125         return link_speed;
3126 }
3127
3128 /**
3129  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3130  * @phba: pointer to lpfc hba data structure.
3131  * @acqe_link: pointer to the async link completion queue entry.
3132  *
3133  * This routine is to handle the SLI4 asynchronous FCoE link event.
3134  **/
3135 static void
3136 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3137                          struct lpfc_acqe_link *acqe_link)
3138 {
3139         struct lpfc_dmabuf *mp;
3140         LPFC_MBOXQ_t *pmb;
3141         MAILBOX_t *mb;
3142         struct lpfc_mbx_read_top *la;
3143         uint8_t att_type;
3144         int rc;
3145
3146         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3147         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3148                 return;
3149         phba->fcoe_eventtag = acqe_link->event_tag;
3150         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3151         if (!pmb) {
3152                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3153                                 "0395 The mboxq allocation failed\n");
3154                 return;
3155         }
3156         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3157         if (!mp) {
3158                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3159                                 "0396 The lpfc_dmabuf allocation failed\n");
3160                 goto out_free_pmb;
3161         }
3162         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3163         if (!mp->virt) {
3164                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3165                                 "0397 The mbuf allocation failed\n");
3166                 goto out_free_dmabuf;
3167         }
3168
3169         /* Cleanup any outstanding ELS commands */
3170         lpfc_els_flush_all_cmd(phba);
3171
3172         /* Block ELS IOCBs until we have done process link event */
3173         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3174
3175         /* Update link event statistics */
3176         phba->sli.slistat.link_event++;
3177
3178         /* Create lpfc_handle_latt mailbox command from link ACQE */
3179         lpfc_read_topology(phba, pmb, mp);
3180         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3181         pmb->vport = phba->pport;
3182
3183         /* Keep the link status for extra SLI4 state machine reference */
3184         phba->sli4_hba.link_state.speed =
3185                                 bf_get(lpfc_acqe_link_speed, acqe_link);
3186         phba->sli4_hba.link_state.duplex =
3187                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3188         phba->sli4_hba.link_state.status =
3189                                 bf_get(lpfc_acqe_link_status, acqe_link);
3190         phba->sli4_hba.link_state.type =
3191                                 bf_get(lpfc_acqe_link_type, acqe_link);
3192         phba->sli4_hba.link_state.number =
3193                                 bf_get(lpfc_acqe_link_number, acqe_link);
3194         phba->sli4_hba.link_state.fault =
3195                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3196         phba->sli4_hba.link_state.logical_speed =
3197                         bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3198         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3199                         "2900 Async FCoE Link event - Speed:%dGBit duplex:x%x "
3200                         "LA Type:x%x Port Type:%d Port Number:%d Logical "
3201                         "speed:%dMbps Fault:%d\n",
3202                         phba->sli4_hba.link_state.speed,
3203                         phba->sli4_hba.link_state.topology,
3204                         phba->sli4_hba.link_state.status,
3205                         phba->sli4_hba.link_state.type,
3206                         phba->sli4_hba.link_state.number,
3207                         phba->sli4_hba.link_state.logical_speed * 10,
3208                         phba->sli4_hba.link_state.fault);
3209         /*
3210          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3211          * topology info. Note: Optional for non FC-AL ports.
3212          */
3213         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3214                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3215                 if (rc == MBX_NOT_FINISHED)
3216                         goto out_free_dmabuf;
3217                 return;
3218         }
3219         /*
3220          * For FCoE Mode: fill in all the topology information we need and call
3221          * the READ_TOPOLOGY completion routine to continue without actually
3222          * sending the READ_TOPOLOGY mailbox command to the port.
3223          */
3224         /* Parse and translate status field */
3225         mb = &pmb->u.mb;
3226         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3227
3228         /* Parse and translate link attention fields */
3229         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3230         la->eventTag = acqe_link->event_tag;
3231         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3232         bf_set(lpfc_mbx_read_top_link_spd, la,
3233                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3234
3235         /* Fake the the following irrelvant fields */
3236         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3237         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3238         bf_set(lpfc_mbx_read_top_il, la, 0);
3239         bf_set(lpfc_mbx_read_top_pb, la, 0);
3240         bf_set(lpfc_mbx_read_top_fa, la, 0);
3241         bf_set(lpfc_mbx_read_top_mm, la, 0);
3242
3243         /* Invoke the lpfc_handle_latt mailbox command callback function */
3244         lpfc_mbx_cmpl_read_topology(phba, pmb);
3245
3246         return;
3247
3248 out_free_dmabuf:
3249         kfree(mp);
3250 out_free_pmb:
3251         mempool_free(pmb, phba->mbox_mem_pool);
3252 }
3253
3254 /**
3255  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3256  * @phba: pointer to lpfc hba data structure.
3257  * @acqe_fc: pointer to the async fc completion queue entry.
3258  *
3259  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3260  * that the event was received and then issue a read_topology mailbox command so
3261  * that the rest of the driver will treat it the same as SLI3.
3262  **/
3263 static void
3264 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3265 {
3266         struct lpfc_dmabuf *mp;
3267         LPFC_MBOXQ_t *pmb;
3268         int rc;
3269
3270         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3271             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3272                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3273                                 "2895 Non FC link Event detected.(%d)\n",
3274                                 bf_get(lpfc_trailer_type, acqe_fc));
3275                 return;
3276         }
3277         /* Keep the link status for extra SLI4 state machine reference */
3278         phba->sli4_hba.link_state.speed =
3279                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3280         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3281         phba->sli4_hba.link_state.topology =
3282                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3283         phba->sli4_hba.link_state.status =
3284                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3285         phba->sli4_hba.link_state.type =
3286                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3287         phba->sli4_hba.link_state.number =
3288                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3289         phba->sli4_hba.link_state.fault =
3290                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3291         phba->sli4_hba.link_state.logical_speed =
3292                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3293         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3294                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3295                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3296                         "%dMbps Fault:%d\n",
3297                         phba->sli4_hba.link_state.speed,
3298                         phba->sli4_hba.link_state.topology,
3299                         phba->sli4_hba.link_state.status,
3300                         phba->sli4_hba.link_state.type,
3301                         phba->sli4_hba.link_state.number,
3302                         phba->sli4_hba.link_state.logical_speed * 10,
3303                         phba->sli4_hba.link_state.fault);
3304         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3305         if (!pmb) {
3306                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3307                                 "2897 The mboxq allocation failed\n");
3308                 return;
3309         }
3310         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3311         if (!mp) {
3312                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3313                                 "2898 The lpfc_dmabuf allocation failed\n");
3314                 goto out_free_pmb;
3315         }
3316         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3317         if (!mp->virt) {
3318                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3319                                 "2899 The mbuf allocation failed\n");
3320                 goto out_free_dmabuf;
3321         }
3322
3323         /* Cleanup any outstanding ELS commands */
3324         lpfc_els_flush_all_cmd(phba);
3325
3326         /* Block ELS IOCBs until we have done process link event */
3327         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3328
3329         /* Update link event statistics */
3330         phba->sli.slistat.link_event++;
3331
3332         /* Create lpfc_handle_latt mailbox command from link ACQE */
3333         lpfc_read_topology(phba, pmb, mp);
3334         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3335         pmb->vport = phba->pport;
3336
3337         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3338         if (rc == MBX_NOT_FINISHED)
3339                 goto out_free_dmabuf;
3340         return;
3341
3342 out_free_dmabuf:
3343         kfree(mp);
3344 out_free_pmb:
3345         mempool_free(pmb, phba->mbox_mem_pool);
3346 }
3347
3348 /**
3349  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3350  * @phba: pointer to lpfc hba data structure.
3351  * @acqe_fc: pointer to the async SLI completion queue entry.
3352  *
3353  * This routine is to handle the SLI4 asynchronous SLI events.
3354  **/
3355 static void
3356 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3357 {
3358         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3359                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3360                         "x%08x SLI Event Type:%d",
3361                         acqe_sli->event_data1, acqe_sli->event_data2,
3362                         bf_get(lpfc_trailer_type, acqe_sli));
3363         return;
3364 }
3365
3366 /**
3367  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3368  * @vport: pointer to vport data structure.
3369  *
3370  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3371  * response to a CVL event.
3372  *
3373  * Return the pointer to the ndlp with the vport if successful, otherwise
3374  * return NULL.
3375  **/
3376 static struct lpfc_nodelist *
3377 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3378 {
3379         struct lpfc_nodelist *ndlp;
3380         struct Scsi_Host *shost;
3381         struct lpfc_hba *phba;
3382
3383         if (!vport)
3384                 return NULL;
3385         phba = vport->phba;
3386         if (!phba)
3387                 return NULL;
3388         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3389         if (!ndlp) {
3390                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3391                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3392                 if (!ndlp)
3393                         return 0;
3394                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3395                 /* Set the node type */
3396                 ndlp->nlp_type |= NLP_FABRIC;
3397                 /* Put ndlp onto node list */
3398                 lpfc_enqueue_node(vport, ndlp);
3399         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3400                 /* re-setup ndlp without removing from node list */
3401                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3402                 if (!ndlp)
3403                         return 0;
3404         }
3405         if ((phba->pport->port_state < LPFC_FLOGI) &&
3406                 (phba->pport->port_state != LPFC_VPORT_FAILED))
3407                 return NULL;
3408         /* If virtual link is not yet instantiated ignore CVL */
3409         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3410                 && (vport->port_state != LPFC_VPORT_FAILED))
3411                 return NULL;
3412         shost = lpfc_shost_from_vport(vport);
3413         if (!shost)
3414                 return NULL;
3415         lpfc_linkdown_port(vport);
3416         lpfc_cleanup_pending_mbox(vport);
3417         spin_lock_irq(shost->host_lock);
3418         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3419         spin_unlock_irq(shost->host_lock);
3420
3421         return ndlp;
3422 }
3423
3424 /**
3425  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3426  * @vport: pointer to lpfc hba data structure.
3427  *
3428  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3429  * response to a FCF dead event.
3430  **/
3431 static void
3432 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3433 {
3434         struct lpfc_vport **vports;
3435         int i;
3436
3437         vports = lpfc_create_vport_work_array(phba);
3438         if (vports)
3439                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3440                         lpfc_sli4_perform_vport_cvl(vports[i]);
3441         lpfc_destroy_vport_work_array(phba, vports);
3442 }
3443
3444 /**
3445  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3446  * @phba: pointer to lpfc hba data structure.
3447  * @acqe_link: pointer to the async fcoe completion queue entry.
3448  *
3449  * This routine is to handle the SLI4 asynchronous fcoe event.
3450  **/
3451 static void
3452 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
3453                         struct lpfc_acqe_fip *acqe_fip)
3454 {
3455         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
3456         int rc;
3457         struct lpfc_vport *vport;
3458         struct lpfc_nodelist *ndlp;
3459         struct Scsi_Host  *shost;
3460         int active_vlink_present;
3461         struct lpfc_vport **vports;
3462         int i;
3463
3464         phba->fc_eventTag = acqe_fip->event_tag;
3465         phba->fcoe_eventtag = acqe_fip->event_tag;
3466         switch (event_type) {
3467         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3468         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3469                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
3470                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3471                                         LOG_DISCOVERY,
3472                                         "2546 New FCF event, evt_tag:x%x, "
3473                                         "index:x%x\n",
3474                                         acqe_fip->event_tag,
3475                                         acqe_fip->index);
3476                 else
3477                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3478                                         LOG_DISCOVERY,
3479                                         "2788 FCF param modified event, "
3480                                         "evt_tag:x%x, index:x%x\n",
3481                                         acqe_fip->event_tag,
3482                                         acqe_fip->index);
3483                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3484                         /*
3485                          * During period of FCF discovery, read the FCF
3486                          * table record indexed by the event to update
3487                          * FCF roundrobin failover eligible FCF bmask.
3488                          */
3489                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3490                                         LOG_DISCOVERY,
3491                                         "2779 Read FCF (x%x) for updating "
3492                                         "roundrobin FCF failover bmask\n",
3493                                         acqe_fip->index);
3494                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
3495                 }
3496
3497                 /* If the FCF discovery is in progress, do nothing. */
3498                 spin_lock_irq(&phba->hbalock);
3499                 if (phba->hba_flag & FCF_TS_INPROG) {
3500                         spin_unlock_irq(&phba->hbalock);
3501                         break;
3502                 }
3503                 /* If fast FCF failover rescan event is pending, do nothing */
3504                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3505                         spin_unlock_irq(&phba->hbalock);
3506                         break;
3507                 }
3508
3509                 /* If the FCF has been in discovered state, do nothing. */
3510                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3511                         spin_unlock_irq(&phba->hbalock);
3512                         break;
3513                 }
3514                 spin_unlock_irq(&phba->hbalock);
3515
3516                 /* Otherwise, scan the entire FCF table and re-discover SAN */
3517                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3518                                 "2770 Start FCF table scan per async FCF "
3519                                 "event, evt_tag:x%x, index:x%x\n",
3520                                 acqe_fip->event_tag, acqe_fip->index);
3521                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3522                                                      LPFC_FCOE_FCF_GET_FIRST);
3523                 if (rc)
3524                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3525                                         "2547 Issue FCF scan read FCF mailbox "
3526                                         "command failed (x%x)\n", rc);
3527                 break;
3528
3529         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
3530                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3531                         "2548 FCF Table full count 0x%x tag 0x%x\n",
3532                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3533                         acqe_fip->event_tag);
3534                 break;
3535
3536         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
3537                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3538                         "2549 FCF (x%x) disconnected from network, "
3539                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
3540                 /*
3541                  * If we are in the middle of FCF failover process, clear
3542                  * the corresponding FCF bit in the roundrobin bitmap.
3543                  */
3544                 spin_lock_irq(&phba->hbalock);
3545                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3546                         spin_unlock_irq(&phba->hbalock);
3547                         /* Update FLOGI FCF failover eligible FCF bmask */
3548                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
3549                         break;
3550                 }
3551                 spin_unlock_irq(&phba->hbalock);
3552
3553                 /* If the event is not for currently used fcf do nothing */
3554                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
3555                         break;
3556
3557                 /*
3558                  * Otherwise, request the port to rediscover the entire FCF
3559                  * table for a fast recovery from case that the current FCF
3560                  * is no longer valid as we are not in the middle of FCF
3561                  * failover process already.
3562                  */
3563                 spin_lock_irq(&phba->hbalock);
3564                 /* Mark the fast failover process in progress */
3565                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3566                 spin_unlock_irq(&phba->hbalock);
3567
3568                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3569                                 "2771 Start FCF fast failover process due to "
3570                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3571                                 "\n", acqe_fip->event_tag, acqe_fip->index);
3572                 rc = lpfc_sli4_redisc_fcf_table(phba);
3573                 if (rc) {
3574                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3575                                         LOG_DISCOVERY,
3576                                         "2772 Issue FCF rediscover mabilbox "
3577                                         "command failed, fail through to FCF "
3578                                         "dead event\n");
3579                         spin_lock_irq(&phba->hbalock);
3580                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3581                         spin_unlock_irq(&phba->hbalock);
3582                         /*
3583                          * Last resort will fail over by treating this
3584                          * as a link down to FCF registration.
3585                          */
3586                         lpfc_sli4_fcf_dead_failthrough(phba);
3587                 } else {
3588                         /* Reset FCF roundrobin bmask for new discovery */
3589                         memset(phba->fcf.fcf_rr_bmask, 0,
3590                                sizeof(*phba->fcf.fcf_rr_bmask));
3591                         /*
3592                          * Handling fast FCF failover to a DEAD FCF event is
3593                          * considered equalivant to receiving CVL to all vports.
3594                          */
3595                         lpfc_sli4_perform_all_vport_cvl(phba);
3596                 }
3597                 break;
3598         case LPFC_FIP_EVENT_TYPE_CVL:
3599                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3600                         "2718 Clear Virtual Link Received for VPI 0x%x"
3601                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
3602                 vport = lpfc_find_vport_by_vpid(phba,
3603                                 acqe_fip->index - phba->vpi_base);
3604                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3605                 if (!ndlp)
3606                         break;
3607                 active_vlink_present = 0;
3608
3609                 vports = lpfc_create_vport_work_array(phba);
3610                 if (vports) {
3611                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3612                                         i++) {
3613                                 if ((!(vports[i]->fc_flag &
3614                                         FC_VPORT_CVL_RCVD)) &&
3615                                         (vports[i]->port_state > LPFC_FDISC)) {
3616                                         active_vlink_present = 1;
3617                                         break;
3618                                 }
3619                         }
3620                         lpfc_destroy_vport_work_array(phba, vports);
3621                 }
3622
3623                 if (active_vlink_present) {
3624                         /*
3625                          * If there are other active VLinks present,
3626                          * re-instantiate the Vlink using FDISC.
3627                          */
3628                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3629                         shost = lpfc_shost_from_vport(vport);
3630                         spin_lock_irq(shost->host_lock);
3631                         ndlp->nlp_flag |= NLP_DELAY_TMO;
3632                         spin_unlock_irq(shost->host_lock);
3633                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3634                         vport->port_state = LPFC_FDISC;
3635                 } else {
3636                         /*
3637                          * Otherwise, we request port to rediscover
3638                          * the entire FCF table for a fast recovery
3639                          * from possible case that the current FCF
3640                          * is no longer valid if we are not already
3641                          * in the FCF failover process.
3642                          */
3643                         spin_lock_irq(&phba->hbalock);
3644                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3645                                 spin_unlock_irq(&phba->hbalock);
3646                                 break;
3647                         }
3648                         /* Mark the fast failover process in progress */
3649                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3650                         spin_unlock_irq(&phba->hbalock);
3651                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3652                                         LOG_DISCOVERY,
3653                                         "2773 Start FCF failover per CVL, "
3654                                         "evt_tag:x%x\n", acqe_fip->event_tag);
3655                         rc = lpfc_sli4_redisc_fcf_table(phba);
3656                         if (rc) {
3657                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3658                                                 LOG_DISCOVERY,
3659                                                 "2774 Issue FCF rediscover "
3660                                                 "mabilbox command failed, "
3661                                                 "through to CVL event\n");
3662                                 spin_lock_irq(&phba->hbalock);
3663                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3664                                 spin_unlock_irq(&phba->hbalock);
3665                                 /*
3666                                  * Last resort will be re-try on the
3667                                  * the current registered FCF entry.
3668                                  */
3669                                 lpfc_retry_pport_discovery(phba);
3670                         } else
3671                                 /*
3672                                  * Reset FCF roundrobin bmask for new
3673                                  * discovery.
3674                                  */
3675                                 memset(phba->fcf.fcf_rr_bmask, 0,
3676                                        sizeof(*phba->fcf.fcf_rr_bmask));
3677                 }
3678                 break;
3679         default:
3680                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3681                         "0288 Unknown FCoE event type 0x%x event tag "
3682                         "0x%x\n", event_type, acqe_fip->event_tag);
3683                 break;
3684         }
3685 }
3686
3687 /**
3688  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3689  * @phba: pointer to lpfc hba data structure.
3690  * @acqe_link: pointer to the async dcbx completion queue entry.
3691  *
3692  * This routine is to handle the SLI4 asynchronous dcbx event.
3693  **/
3694 static void
3695 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3696                          struct lpfc_acqe_dcbx *acqe_dcbx)
3697 {
3698         phba->fc_eventTag = acqe_dcbx->event_tag;
3699         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3700                         "0290 The SLI4 DCBX asynchronous event is not "
3701                         "handled yet\n");
3702 }
3703
3704 /**
3705  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3706  * @phba: pointer to lpfc hba data structure.
3707  * @acqe_link: pointer to the async grp5 completion queue entry.
3708  *
3709  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3710  * is an asynchronous notified of a logical link speed change.  The Port
3711  * reports the logical link speed in units of 10Mbps.
3712  **/
3713 static void
3714 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3715                          struct lpfc_acqe_grp5 *acqe_grp5)
3716 {
3717         uint16_t prev_ll_spd;
3718
3719         phba->fc_eventTag = acqe_grp5->event_tag;
3720         phba->fcoe_eventtag = acqe_grp5->event_tag;
3721         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3722         phba->sli4_hba.link_state.logical_speed =
3723                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3724         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3725                         "2789 GRP5 Async Event: Updating logical link speed "
3726                         "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3727                         (phba->sli4_hba.link_state.logical_speed*10));
3728 }
3729
3730 /**
3731  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3732  * @phba: pointer to lpfc hba data structure.
3733  *
3734  * This routine is invoked by the worker thread to process all the pending
3735  * SLI4 asynchronous events.
3736  **/
3737 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3738 {
3739         struct lpfc_cq_event *cq_event;
3740
3741         /* First, declare the async event has been handled */
3742         spin_lock_irq(&phba->hbalock);
3743         phba->hba_flag &= ~ASYNC_EVENT;
3744         spin_unlock_irq(&phba->hbalock);
3745         /* Now, handle all the async events */
3746         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3747                 /* Get the first event from the head of the event queue */
3748                 spin_lock_irq(&phba->hbalock);
3749                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3750                                  cq_event, struct lpfc_cq_event, list);
3751                 spin_unlock_irq(&phba->hbalock);
3752                 /* Process the asynchronous event */
3753                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3754                 case LPFC_TRAILER_CODE_LINK:
3755                         lpfc_sli4_async_link_evt(phba,
3756                                                  &cq_event->cqe.acqe_link);
3757                         break;
3758                 case LPFC_TRAILER_CODE_FCOE:
3759                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
3760                         break;
3761                 case LPFC_TRAILER_CODE_DCBX:
3762                         lpfc_sli4_async_dcbx_evt(phba,
3763                                                  &cq_event->cqe.acqe_dcbx);
3764                         break;
3765                 case LPFC_TRAILER_CODE_GRP5:
3766                         lpfc_sli4_async_grp5_evt(phba,
3767                                                  &cq_event->cqe.acqe_grp5);
3768                         break;
3769                 case LPFC_TRAILER_CODE_FC:
3770                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3771                         break;
3772                 case LPFC_TRAILER_CODE_SLI:
3773                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3774                         break;
3775                 default:
3776                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3777                                         "1804 Invalid asynchrous event code: "
3778                                         "x%x\n", bf_get(lpfc_trailer_code,
3779                                         &cq_event->cqe.mcqe_cmpl));
3780                         break;
3781                 }
3782                 /* Free the completion event processed to the free pool */
3783                 lpfc_sli4_cq_event_release(phba, cq_event);
3784         }
3785 }
3786
3787 /**
3788  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3789  * @phba: pointer to lpfc hba data structure.
3790  *
3791  * This routine is invoked by the worker thread to process FCF table
3792  * rediscovery pending completion event.
3793  **/
3794 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3795 {
3796         int rc;
3797
3798         spin_lock_irq(&phba->hbalock);
3799         /* Clear FCF rediscovery timeout event */
3800         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3801         /* Clear driver fast failover FCF record flag */
3802         phba->fcf.failover_rec.flag = 0;
3803         /* Set state for FCF fast failover */
3804         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3805         spin_unlock_irq(&phba->hbalock);
3806
3807         /* Scan FCF table from the first entry to re-discover SAN */
3808         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3809                         "2777 Start post-quiescent FCF table scan\n");
3810         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3811         if (rc)
3812                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3813                                 "2747 Issue FCF scan read FCF mailbox "
3814                                 "command failed 0x%x\n", rc);
3815 }
3816
3817 /**
3818  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3819  * @phba: pointer to lpfc hba data structure.
3820  * @dev_grp: The HBA PCI-Device group number.
3821  *
3822  * This routine is invoked to set up the per HBA PCI-Device group function
3823  * API jump table entries.
3824  *
3825  * Return: 0 if success, otherwise -ENODEV
3826  **/
3827 int
3828 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3829 {
3830         int rc;
3831
3832         /* Set up lpfc PCI-device group */
3833         phba->pci_dev_grp = dev_grp;
3834
3835         /* The LPFC_PCI_DEV_OC uses SLI4 */
3836         if (dev_grp == LPFC_PCI_DEV_OC)
3837                 phba->sli_rev = LPFC_SLI_REV4;
3838
3839         /* Set up device INIT API function jump table */
3840         rc = lpfc_init_api_table_setup(phba, dev_grp);
3841         if (rc)
3842                 return -ENODEV;
3843         /* Set up SCSI API function jump table */
3844         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3845         if (rc)
3846                 return -ENODEV;
3847         /* Set up SLI API function jump table */
3848         rc = lpfc_sli_api_table_setup(phba, dev_grp);
3849         if (rc)
3850                 return -ENODEV;
3851         /* Set up MBOX API function jump table */
3852         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3853         if (rc)
3854                 return -ENODEV;
3855
3856         return 0;
3857 }
3858
3859 /**
3860  * lpfc_log_intr_mode - Log the active interrupt mode
3861  * @phba: pointer to lpfc hba data structure.
3862  * @intr_mode: active interrupt mode adopted.
3863  *
3864  * This routine it invoked to log the currently used active interrupt mode
3865  * to the device.
3866  **/
3867 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3868 {
3869         switch (intr_mode) {
3870         case 0:
3871                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3872                                 "0470 Enable INTx interrupt mode.\n");
3873                 break;
3874         case 1:
3875                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3876                                 "0481 Enabled MSI interrupt mode.\n");
3877                 break;
3878         case 2:
3879                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3880                                 "0480 Enabled MSI-X interrupt mode.\n");
3881                 break;
3882         default:
3883                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3884                                 "0482 Illegal interrupt mode.\n");
3885                 break;
3886         }
3887         return;
3888 }
3889
3890 /**
3891  * lpfc_enable_pci_dev - Enable a generic PCI device.
3892  * @phba: pointer to lpfc hba data structure.
3893  *
3894  * This routine is invoked to enable the PCI device that is common to all
3895  * PCI devices.
3896  *
3897  * Return codes
3898  *      0 - successful
3899  *      other values - error
3900  **/
3901 static int
3902 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3903 {
3904         struct pci_dev *pdev;
3905         int bars;
3906
3907         /* Obtain PCI device reference */
3908         if (!phba->pcidev)
3909                 goto out_error;
3910         else
3911                 pdev = phba->pcidev;
3912         /* Select PCI BARs */
3913         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3914         /* Enable PCI device */
3915         if (pci_enable_device_mem(pdev))
3916                 goto out_error;
3917         /* Request PCI resource for the device */
3918         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3919                 goto out_disable_device;
3920         /* Set up device as PCI master and save state for EEH */
3921         pci_set_master(pdev);
3922         pci_try_set_mwi(pdev);
3923         pci_save_state(pdev);
3924
3925         return 0;
3926
3927 out_disable_device:
3928         pci_disable_device(pdev);
3929 out_error:
3930         return -ENODEV;
3931 }
3932
3933 /**
3934  * lpfc_disable_pci_dev - Disable a generic PCI device.
3935  * @phba: pointer to lpfc hba data structure.
3936  *
3937  * This routine is invoked to disable the PCI device that is common to all
3938  * PCI devices.
3939  **/
3940 static void
3941 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3942 {
3943         struct pci_dev *pdev;
3944         int bars;
3945
3946         /* Obtain PCI device reference */
3947         if (!phba->pcidev)
3948                 return;
3949         else
3950                 pdev = phba->pcidev;
3951         /* Select PCI BARs */
3952         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3953         /* Release PCI resource and disable PCI device */
3954         pci_release_selected_regions(pdev, bars);
3955         pci_disable_device(pdev);
3956         /* Null out PCI private reference to driver */
3957         pci_set_drvdata(pdev, NULL);
3958
3959         return;
3960 }
3961
3962 /**
3963  * lpfc_reset_hba - Reset a hba
3964  * @phba: pointer to lpfc hba data structure.
3965  *
3966  * This routine is invoked to reset a hba device. It brings the HBA
3967  * offline, performs a board restart, and then brings the board back
3968  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3969  * on outstanding mailbox commands.
3970  **/
3971 void
3972 lpfc_reset_hba(struct lpfc_hba *phba)
3973 {
3974         /* If resets are disabled then set error state and return. */
3975         if (!phba->cfg_enable_hba_reset) {
3976                 phba->link_state = LPFC_HBA_ERROR;
3977                 return;
3978         }
3979         lpfc_offline_prep(phba);
3980         lpfc_offline(phba);
3981         lpfc_sli_brdrestart(phba);
3982         lpfc_online(phba);
3983         lpfc_unblock_mgmt_io(phba);
3984 }
3985
3986 /**
3987  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3988  * @phba: pointer to lpfc hba data structure.
3989  *
3990  * This routine is invoked to set up the driver internal resources specific to
3991  * support the SLI-3 HBA device it attached to.
3992  *
3993  * Return codes
3994  *      0 - successful
3995  *      other values - error
3996  **/
3997 static int
3998 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
3999 {
4000         struct lpfc_sli *psli;
4001
4002         /*
4003          * Initialize timers used by driver
4004          */
4005
4006         /* Heartbeat timer */
4007         init_timer(&phba->hb_tmofunc);
4008         phba->hb_tmofunc.function = lpfc_hb_timeout;
4009         phba->hb_tmofunc.data = (unsigned long)phba;
4010
4011         psli = &phba->sli;
4012         /* MBOX heartbeat timer */
4013         init_timer(&psli->mbox_tmo);
4014         psli->mbox_tmo.function = lpfc_mbox_timeout;
4015         psli->mbox_tmo.data = (unsigned long) phba;
4016         /* FCP polling mode timer */
4017         init_timer(&phba->fcp_poll_timer);
4018         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4019         phba->fcp_poll_timer.data = (unsigned long) phba;
4020         /* Fabric block timer */
4021         init_timer(&phba->fabric_block_timer);
4022         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4023         phba->fabric_block_timer.data = (unsigned long) phba;
4024         /* EA polling mode timer */
4025         init_timer(&phba->eratt_poll);
4026         phba->eratt_poll.function = lpfc_poll_eratt;
4027         phba->eratt_poll.data = (unsigned long) phba;
4028
4029         /* Host attention work mask setup */
4030         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4031         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4032
4033         /* Get all the module params for configuring this host */
4034         lpfc_get_cfgparam(phba);
4035         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4036                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4037                 /* check for menlo minimum sg count */
4038                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4039                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4040         }
4041
4042         /*
4043          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4044          * used to create the sg_dma_buf_pool must be dynamically calculated.
4045          * 2 segments are added since the IOCB needs a command and response bde.
4046          */
4047         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4048                 sizeof(struct fcp_rsp) +
4049                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4050
4051         if (phba->cfg_enable_bg) {
4052                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4053                 phba->cfg_sg_dma_buf_size +=
4054                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4055         }
4056
4057         /* Also reinitialize the host templates with new values. */
4058         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4059         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4060
4061         phba->max_vpi = LPFC_MAX_VPI;
4062         /* This will be set to correct value after config_port mbox */
4063         phba->max_vports = 0;
4064
4065         /*
4066          * Initialize the SLI Layer to run with lpfc HBAs.
4067          */
4068         lpfc_sli_setup(phba);
4069         lpfc_sli_queue_setup(phba);
4070
4071         /* Allocate device driver memory */
4072         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4073                 return -ENOMEM;
4074
4075         return 0;
4076 }
4077
4078 /**
4079  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4080  * @phba: pointer to lpfc hba data structure.
4081  *
4082  * This routine is invoked to unset the driver internal resources set up
4083  * specific for supporting the SLI-3 HBA device it attached to.
4084  **/
4085 static void
4086 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4087 {
4088         /* Free device driver memory allocated */
4089         lpfc_mem_free_all(phba);
4090
4091         return;
4092 }
4093
4094 /**
4095  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4096  * @phba: pointer to lpfc hba data structure.
4097  *
4098  * This routine is invoked to set up the driver internal resources specific to
4099  * support the SLI-4 HBA device it attached to.
4100  *
4101  * Return codes
4102  *      0 - successful
4103  *      other values - error
4104  **/
4105 static int
4106 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4107 {
4108         struct lpfc_sli *psli;
4109         LPFC_MBOXQ_t *mboxq;
4110         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4111         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4112         struct lpfc_mqe *mqe;
4113         int longs, sli_family;
4114
4115         /* Before proceed, wait for POST done and device ready */
4116         rc = lpfc_sli4_post_status_check(phba);
4117         if (rc)
4118                 return -ENODEV;
4119
4120         /*
4121          * Initialize timers used by driver
4122          */
4123
4124         /* Heartbeat timer */
4125         init_timer(&phba->hb_tmofunc);
4126         phba->hb_tmofunc.function = lpfc_hb_timeout;
4127         phba->hb_tmofunc.data = (unsigned long)phba;
4128         init_timer(&phba->rrq_tmr);
4129         phba->rrq_tmr.function = lpfc_rrq_timeout;
4130         phba->rrq_tmr.data = (unsigned long)phba;
4131
4132         psli = &phba->sli;
4133         /* MBOX heartbeat timer */
4134         init_timer(&psli->mbox_tmo);
4135         psli->mbox_tmo.function = lpfc_mbox_timeout;
4136         psli->mbox_tmo.data = (unsigned long) phba;
4137         /* Fabric block timer */
4138         init_timer(&phba->fabric_block_timer);
4139         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4140         phba->fabric_block_timer.data = (unsigned long) phba;
4141         /* EA polling mode timer */
4142         init_timer(&phba->eratt_poll);
4143         phba->eratt_poll.function = lpfc_poll_eratt;
4144         phba->eratt_poll.data = (unsigned long) phba;
4145         /* FCF rediscover timer */
4146         init_timer(&phba->fcf.redisc_wait);
4147         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4148         phba->fcf.redisc_wait.data = (unsigned long)phba;
4149
4150         /*
4151          * We need to do a READ_CONFIG mailbox command here before
4152          * calling lpfc_get_cfgparam. For VFs this will report the
4153          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4154          * All of the resources allocated
4155          * for this Port are tied to these values.
4156          */
4157         /* Get all the module params for configuring this host */
4158         lpfc_get_cfgparam(phba);
4159         phba->max_vpi = LPFC_MAX_VPI;
4160         /* This will be set to correct value after the read_config mbox */
4161         phba->max_vports = 0;
4162
4163         /* Program the default value of vlan_id and fc_map */
4164         phba->valid_vlan = 0;
4165         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4166         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4167         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4168
4169         /*
4170          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4171          * used to create the sg_dma_buf_pool must be dynamically calculated.
4172          * 2 segments are added since the IOCB needs a command and response bde.
4173          * To insure that the scsi sgl does not cross a 4k page boundary only
4174          * sgl sizes of must be a power of 2.
4175          */
4176         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4177                     ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4178
4179         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4180         max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4181         switch (sli_family) {
4182         case LPFC_SLI_INTF_FAMILY_BE2:
4183         case LPFC_SLI_INTF_FAMILY_BE3:
4184                 /* There is a single hint for BE - 2 pages per BPL. */
4185                 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4186                     LPFC_SLI_INTF_SLI_HINT1_1)
4187                         max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4188                 break;
4189         case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4190         case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4191         default:
4192                 break;
4193         }
4194         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4195              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4196              dma_buf_size = dma_buf_size << 1)
4197                 ;
4198         if (dma_buf_size == max_buf_size)
4199                 phba->cfg_sg_seg_cnt = (dma_buf_size -
4200                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4201                         (2 * sizeof(struct sli4_sge))) /
4202                                 sizeof(struct sli4_sge);
4203         phba->cfg_sg_dma_buf_size = dma_buf_size;
4204
4205         /* Initialize buffer queue management fields */
4206         hbq_count = lpfc_sli_hbq_count();
4207         for (i = 0; i < hbq_count; ++i)
4208                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4209         INIT_LIST_HEAD(&phba->rb_pend_list);
4210         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4211         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4212
4213         /*
4214          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4215          */
4216         /* Initialize the Abort scsi buffer list used by driver */
4217         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4218         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4219         /* This abort list used by worker thread */
4220         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4221
4222         /*
4223          * Initialize dirver internal slow-path work queues
4224          */
4225
4226         /* Driver internel slow-path CQ Event pool */
4227         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4228         /* Response IOCB work queue list */
4229         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4230         /* Asynchronous event CQ Event work queue list */
4231         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4232         /* Fast-path XRI aborted CQ Event work queue list */
4233         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4234         /* Slow-path XRI aborted CQ Event work queue list */
4235         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4236         /* Receive queue CQ Event work queue list */
4237         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4238
4239         /* Initialize the driver internal SLI layer lists. */
4240         lpfc_sli_setup(phba);
4241         lpfc_sli_queue_setup(phba);
4242
4243         /* Allocate device driver memory */
4244         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4245         if (rc)
4246                 return -ENOMEM;
4247
4248         /* IF Type 2 ports get initialized now. */
4249         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4250             LPFC_SLI_INTF_IF_TYPE_2) {
4251                 rc = lpfc_pci_function_reset(phba);
4252                 if (unlikely(rc))
4253                         return -ENODEV;
4254         }
4255
4256         /* Create the bootstrap mailbox command */
4257         rc = lpfc_create_bootstrap_mbox(phba);
4258         if (unlikely(rc))
4259                 goto out_free_mem;
4260
4261         /* Set up the host's endian order with the device. */
4262         rc = lpfc_setup_endian_order(phba);
4263         if (unlikely(rc))
4264                 goto out_free_bsmbx;
4265
4266         /* Set up the hba's configuration parameters. */
4267         rc = lpfc_sli4_read_config(phba);
4268         if (unlikely(rc))
4269                 goto out_free_bsmbx;
4270
4271         /* IF Type 0 ports get initialized now. */
4272         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4273             LPFC_SLI_INTF_IF_TYPE_0) {
4274                 rc = lpfc_pci_function_reset(phba);
4275                 if (unlikely(rc))
4276                         goto out_free_bsmbx;
4277         }
4278
4279         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4280                                                        GFP_KERNEL);
4281         if (!mboxq) {
4282                 rc = -ENOMEM;
4283                 goto out_free_bsmbx;
4284         }
4285
4286         /* Get the Supported Pages. It is always available. */
4287         lpfc_supported_pages(mboxq);
4288         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4289         if (unlikely(rc)) {
4290                 rc = -EIO;
4291                 mempool_free(mboxq, phba->mbox_mem_pool);
4292                 goto out_free_bsmbx;
4293         }
4294
4295         mqe = &mboxq->u.mqe;
4296         memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4297                LPFC_MAX_SUPPORTED_PAGES);
4298         for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4299                 switch (pn_page[i]) {
4300                 case LPFC_SLI4_PARAMETERS:
4301                         phba->sli4_hba.pc_sli4_params.supported = 1;
4302                         break;
4303                 default:
4304                         break;
4305                 }
4306         }
4307
4308         /* Read the port's SLI4 Parameters capabilities if supported. */
4309         if (phba->sli4_hba.pc_sli4_params.supported)
4310                 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4311         mempool_free(mboxq, phba->mbox_mem_pool);
4312         if (rc) {
4313                 rc = -EIO;
4314                 goto out_free_bsmbx;
4315         }
4316         /* Create all the SLI4 queues */
4317         rc = lpfc_sli4_queue_create(phba);
4318         if (rc)
4319                 goto out_free_bsmbx;
4320
4321         /* Create driver internal CQE event pool */
4322         rc = lpfc_sli4_cq_event_pool_create(phba);
4323         if (rc)
4324                 goto out_destroy_queue;
4325
4326         /* Initialize and populate the iocb list per host */
4327         rc = lpfc_init_sgl_list(phba);
4328         if (rc) {
4329                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4330                                 "1400 Failed to initialize sgl list.\n");
4331                 goto out_destroy_cq_event_pool;
4332         }
4333         rc = lpfc_init_active_sgl_array(phba);
4334         if (rc) {
4335                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4336                                 "1430 Failed to initialize sgl list.\n");
4337                 goto out_free_sgl_list;
4338         }
4339
4340         rc = lpfc_sli4_init_rpi_hdrs(phba);
4341         if (rc) {
4342                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4343                                 "1432 Failed to initialize rpi headers.\n");
4344                 goto out_free_active_sgl;
4345         }
4346
4347         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4348         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4349         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4350                                          GFP_KERNEL);
4351         if (!phba->fcf.fcf_rr_bmask) {
4352                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4353                                 "2759 Failed allocate memory for FCF round "
4354                                 "robin failover bmask\n");
4355                 goto out_remove_rpi_hdrs;
4356         }
4357
4358         phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4359                                     phba->cfg_fcp_eq_count), GFP_KERNEL);
4360         if (!phba->sli4_hba.fcp_eq_hdl) {
4361                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4362                                 "2572 Failed allocate memory for fast-path "
4363                                 "per-EQ handle array\n");
4364                 goto out_free_fcf_rr_bmask;
4365         }
4366
4367         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4368                                       phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4369         if (!phba->sli4_hba.msix_entries) {
4370                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4371                                 "2573 Failed allocate memory for msi-x "
4372                                 "interrupt vector entries\n");
4373                 goto out_free_fcp_eq_hdl;
4374         }
4375
4376         return rc;
4377
4378 out_free_fcp_eq_hdl:
4379         kfree(phba->sli4_hba.fcp_eq_hdl);
4380 out_free_fcf_rr_bmask:
4381         kfree(phba->fcf.fcf_rr_bmask);
4382 out_remove_rpi_hdrs:
4383         lpfc_sli4_remove_rpi_hdrs(phba);
4384 out_free_active_sgl:
4385         lpfc_free_active_sgl(phba);
4386 out_free_sgl_list:
4387         lpfc_free_sgl_list(phba);
4388 out_destroy_cq_event_pool:
4389         lpfc_sli4_cq_event_pool_destroy(phba);
4390 out_destroy_queue:
4391         lpfc_sli4_queue_destroy(phba);
4392 out_free_bsmbx:
4393         lpfc_destroy_bootstrap_mbox(phba);
4394 out_free_mem:
4395         lpfc_mem_free(phba);
4396         return rc;
4397 }
4398
4399 /**
4400  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4401  * @phba: pointer to lpfc hba data structure.
4402  *
4403  * This routine is invoked to unset the driver internal resources set up
4404  * specific for supporting the SLI-4 HBA device it attached to.
4405  **/
4406 static void
4407 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4408 {
4409         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4410
4411         /* Free memory allocated for msi-x interrupt vector entries */
4412         kfree(phba->sli4_hba.msix_entries);
4413
4414         /* Free memory allocated for fast-path work queue handles */
4415         kfree(phba->sli4_hba.fcp_eq_hdl);
4416
4417         /* Free the allocated rpi headers. */
4418         lpfc_sli4_remove_rpi_hdrs(phba);
4419         lpfc_sli4_remove_rpis(phba);
4420
4421         /* Free eligible FCF index bmask */
4422         kfree(phba->fcf.fcf_rr_bmask);
4423
4424         /* Free the ELS sgl list */
4425         lpfc_free_active_sgl(phba);
4426         lpfc_free_sgl_list(phba);
4427
4428         /* Free the SCSI sgl management array */
4429         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4430
4431         /* Free the SLI4 queues */
4432         lpfc_sli4_queue_destroy(phba);
4433
4434         /* Free the completion queue EQ event pool */
4435         lpfc_sli4_cq_event_release_all(phba);
4436         lpfc_sli4_cq_event_pool_destroy(phba);
4437
4438         /* Free the bsmbx region. */
4439         lpfc_destroy_bootstrap_mbox(phba);
4440
4441         /* Free the SLI Layer memory with SLI4 HBAs */
4442         lpfc_mem_free_all(phba);
4443
4444         /* Free the current connect table */
4445         list_for_each_entry_safe(conn_entry, next_conn_entry,
4446                 &phba->fcf_conn_rec_list, list) {
4447                 list_del_init(&conn_entry->list);
4448                 kfree(conn_entry);
4449         }
4450
4451         return;
4452 }
4453
4454 /**
4455  * lpfc_init_api_table_setup - Set up init api fucntion jump table
4456  * @phba: The hba struct for which this call is being executed.
4457  * @dev_grp: The HBA PCI-Device group number.
4458  *
4459  * This routine sets up the device INIT interface API function jump table
4460  * in @phba struct.
4461  *
4462  * Returns: 0 - success, -ENODEV - failure.
4463  **/
4464 int
4465 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4466 {
4467         phba->lpfc_hba_init_link = lpfc_hba_init_link;
4468         phba->lpfc_hba_down_link = lpfc_hba_down_link;
4469         switch (dev_grp) {
4470         case LPFC_PCI_DEV_LP:
4471                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4472                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4473                 phba->lpfc_stop_port = lpfc_stop_port_s3;
4474                 break;
4475         case LPFC_PCI_DEV_OC:
4476                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4477                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4478                 phba->lpfc_stop_port = lpfc_stop_port_s4;
4479                 break;
4480         default:
4481                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4482                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
4483                                 dev_grp);
4484                 return -ENODEV;
4485                 break;
4486         }
4487         return 0;
4488 }
4489
4490 /**
4491  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4492  * @phba: pointer to lpfc hba data structure.
4493  *
4494  * This routine is invoked to set up the driver internal resources before the
4495  * device specific resource setup to support the HBA device it attached to.
4496  *
4497  * Return codes
4498  *      0 - successful
4499  *      other values - error
4500  **/
4501 static int
4502 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4503 {
4504         /*
4505          * Driver resources common to all SLI revisions
4506          */
4507         atomic_set(&phba->fast_event_count, 0);
4508         spin_lock_init(&phba->hbalock);
4509
4510         /* Initialize ndlp management spinlock */
4511         spin_lock_init(&phba->ndlp_lock);
4512
4513         INIT_LIST_HEAD(&phba->port_list);
4514         INIT_LIST_HEAD(&phba->work_list);
4515         init_waitqueue_head(&phba->wait_4_mlo_m_q);
4516
4517         /* Initialize the wait queue head for the kernel thread */
4518         init_waitqueue_head(&phba->work_waitq);
4519
4520         /* Initialize the scsi buffer list used by driver for scsi IO */
4521         spin_lock_init(&phba->scsi_buf_list_lock);
4522         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4523
4524         /* Initialize the fabric iocb list */
4525         INIT_LIST_HEAD(&phba->fabric_iocb_list);
4526
4527         /* Initialize list to save ELS buffers */
4528         INIT_LIST_HEAD(&phba->elsbuf);
4529
4530         /* Initialize FCF connection rec list */
4531         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4532
4533         return 0;
4534 }
4535
4536 /**
4537  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4538  * @phba: pointer to lpfc hba data structure.
4539  *
4540  * This routine is invoked to set up the driver internal resources after the
4541  * device specific resource setup to support the HBA device it attached to.
4542  *
4543  * Return codes
4544  *      0 - successful
4545  *      other values - error
4546  **/
4547 static int
4548 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4549 {
4550         int error;
4551
4552         /* Startup the kernel thread for this host adapter. */
4553         phba->worker_thread = kthread_run(lpfc_do_work, phba,
4554                                           "lpfc_worker_%d", phba->brd_no);
4555         if (IS_ERR(phba->worker_thread)) {
4556                 error = PTR_ERR(phba->worker_thread);
4557                 return error;
4558         }
4559
4560         return 0;
4561 }
4562
4563 /**
4564  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4565  * @phba: pointer to lpfc hba data structure.
4566  *
4567  * This routine is invoked to unset the driver internal resources set up after
4568  * the device specific resource setup for supporting the HBA device it
4569  * attached to.
4570  **/
4571 static void
4572 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4573 {
4574         /* Stop kernel worker thread */
4575         kthread_stop(phba->worker_thread);
4576 }
4577
4578 /**
4579  * lpfc_free_iocb_list - Free iocb list.
4580  * @phba: pointer to lpfc hba data structure.
4581  *
4582  * This routine is invoked to free the driver's IOCB list and memory.
4583  **/
4584 static void
4585 lpfc_free_iocb_list(struct lpfc_hba *phba)
4586 {
4587         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4588
4589         spin_lock_irq(&phba->hbalock);
4590         list_for_each_entry_safe(iocbq_entry, iocbq_next,
4591                                  &phba->lpfc_iocb_list, list) {
4592                 list_del(&iocbq_entry->list);
4593                 kfree(iocbq_entry);
4594                 phba->total_iocbq_bufs--;
4595         }
4596         spin_unlock_irq(&phba->hbalock);
4597
4598         return;
4599 }
4600
4601 /**
4602  * lpfc_init_iocb_list - Allocate and initialize iocb list.
4603  * @phba: pointer to lpfc hba data structure.
4604  *
4605  * This routine is invoked to allocate and initizlize the driver's IOCB
4606  * list and set up the IOCB tag array accordingly.
4607  *
4608  * Return codes
4609  *      0 - successful
4610  *      other values - error
4611  **/
4612 static int
4613 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4614 {
4615         struct lpfc_iocbq *iocbq_entry = NULL;
4616         uint16_t iotag;
4617         int i;
4618
4619         /* Initialize and populate the iocb list per host.  */
4620         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4621         for (i = 0; i < iocb_count; i++) {
4622                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4623                 if (iocbq_entry == NULL) {
4624                         printk(KERN_ERR "%s: only allocated %d iocbs of "
4625                                 "expected %d count. Unloading driver.\n",
4626                                 __func__, i, LPFC_IOCB_LIST_CNT);
4627                         goto out_free_iocbq;
4628                 }
4629
4630                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4631                 if (iotag == 0) {
4632                         kfree(iocbq_entry);
4633                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
4634                                 "Unloading driver.\n", __func__);
4635                         goto out_free_iocbq;
4636                 }
4637                 iocbq_entry->sli4_xritag = NO_XRI;
4638
4639                 spin_lock_irq(&phba->hbalock);
4640                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4641                 phba->total_iocbq_bufs++;
4642                 spin_unlock_irq(&phba->hbalock);
4643         }
4644
4645         return 0;
4646
4647 out_free_iocbq:
4648         lpfc_free_iocb_list(phba);
4649
4650         return -ENOMEM;
4651 }
4652
4653 /**
4654  * lpfc_free_sgl_list - Free sgl list.
4655  * @phba: pointer to lpfc hba data structure.
4656  *
4657  * This routine is invoked to free the driver's sgl list and memory.
4658  **/
4659 static void
4660 lpfc_free_sgl_list(struct lpfc_hba *phba)
4661 {
4662         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4663         LIST_HEAD(sglq_list);
4664
4665         spin_lock_irq(&phba->hbalock);
4666         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4667         spin_unlock_irq(&phba->hbalock);
4668
4669         list_for_each_entry_safe(sglq_entry, sglq_next,
4670                                  &sglq_list, list) {
4671                 list_del(&sglq_entry->list);
4672                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4673                 kfree(sglq_entry);
4674                 phba->sli4_hba.total_sglq_bufs--;
4675         }
4676         kfree(phba->sli4_hba.lpfc_els_sgl_array);
4677 }
4678
4679 /**
4680  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4681  * @phba: pointer to lpfc hba data structure.
4682  *
4683  * This routine is invoked to allocate the driver's active sgl memory.
4684  * This array will hold the sglq_entry's for active IOs.
4685  **/
4686 static int
4687 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4688 {
4689         int size;
4690         size = sizeof(struct lpfc_sglq *);
4691         size *= phba->sli4_hba.max_cfg_param.max_xri;
4692
4693         phba->sli4_hba.lpfc_sglq_active_list =
4694                 kzalloc(size, GFP_KERNEL);
4695         if (!phba->sli4_hba.lpfc_sglq_active_list)
4696                 return -ENOMEM;
4697         return 0;
4698 }
4699
4700 /**
4701  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4702  * @phba: pointer to lpfc hba data structure.
4703  *
4704  * This routine is invoked to walk through the array of active sglq entries
4705  * and free all of the resources.
4706  * This is just a place holder for now.
4707  **/
4708 static void
4709 lpfc_free_active_sgl(struct lpfc_hba *phba)
4710 {
4711         kfree(phba->sli4_hba.lpfc_sglq_active_list);
4712 }
4713
4714 /**
4715  * lpfc_init_sgl_list - Allocate and initialize sgl list.
4716  * @phba: pointer to lpfc hba data structure.
4717  *
4718  * This routine is invoked to allocate and initizlize the driver's sgl
4719  * list and set up the sgl xritag tag array accordingly.
4720  *
4721  * Return codes
4722  *      0 - successful
4723  *      other values - error
4724  **/
4725 static int
4726 lpfc_init_sgl_list(struct lpfc_hba *phba)
4727 {
4728         struct lpfc_sglq *sglq_entry = NULL;
4729         int i;
4730         int els_xri_cnt;
4731
4732         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4733         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4734                                 "2400 lpfc_init_sgl_list els %d.\n",
4735                                 els_xri_cnt);
4736         /* Initialize and populate the sglq list per host/VF. */
4737         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4738         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4739
4740         /* Sanity check on XRI management */
4741         if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4742                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4743                                 "2562 No room left for SCSI XRI allocation: "
4744                                 "max_xri=%d, els_xri=%d\n",
4745                                 phba->sli4_hba.max_cfg_param.max_xri,
4746                                 els_xri_cnt);
4747                 return -ENOMEM;
4748         }
4749
4750         /* Allocate memory for the ELS XRI management array */
4751         phba->sli4_hba.lpfc_els_sgl_array =
4752                         kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4753                         GFP_KERNEL);
4754
4755         if (!phba->sli4_hba.lpfc_els_sgl_array) {
4756                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4757                                 "2401 Failed to allocate memory for ELS "
4758                                 "XRI management array of size %d.\n",
4759                                 els_xri_cnt);
4760                 return -ENOMEM;
4761         }
4762
4763         /* Keep the SCSI XRI into the XRI management array */
4764         phba->sli4_hba.scsi_xri_max =
4765                         phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4766         phba->sli4_hba.scsi_xri_cnt = 0;
4767
4768         phba->sli4_hba.lpfc_scsi_psb_array =
4769                         kzalloc((sizeof(struct lpfc_scsi_buf *) *
4770                         phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4771
4772         if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4773                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4774                                 "2563 Failed to allocate memory for SCSI "
4775                                 "XRI management array of size %d.\n",
4776                                 phba->sli4_hba.scsi_xri_max);
4777                 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4778                 return -ENOMEM;
4779         }
4780
4781         for (i = 0; i < els_xri_cnt; i++) {
4782                 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4783                 if (sglq_entry == NULL) {
4784                         printk(KERN_ERR "%s: only allocated %d sgls of "
4785                                 "expected %d count. Unloading driver.\n",
4786                                 __func__, i, els_xri_cnt);
4787                         goto out_free_mem;
4788                 }
4789
4790                 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4791                 if (sglq_entry->sli4_xritag == NO_XRI) {
4792                         kfree(sglq_entry);
4793                         printk(KERN_ERR "%s: failed to allocate XRI.\n"
4794                                 "Unloading driver.\n", __func__);
4795                         goto out_free_mem;
4796                 }
4797                 sglq_entry->buff_type = GEN_BUFF_TYPE;
4798                 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4799                 if (sglq_entry->virt == NULL) {
4800                         kfree(sglq_entry);
4801                         printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4802                                 "Unloading driver.\n", __func__);
4803                         goto out_free_mem;
4804                 }
4805                 sglq_entry->sgl = sglq_entry->virt;
4806                 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4807
4808                 /* The list order is used by later block SGL registraton */
4809                 spin_lock_irq(&phba->hbalock);
4810                 sglq_entry->state = SGL_FREED;
4811                 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4812                 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4813                 phba->sli4_hba.total_sglq_bufs++;
4814                 spin_unlock_irq(&phba->hbalock);
4815         }
4816         return 0;
4817
4818 out_free_mem:
4819         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4820         lpfc_free_sgl_list(phba);
4821         return -ENOMEM;
4822 }
4823
4824 /**
4825  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4826  * @phba: pointer to lpfc hba data structure.
4827  *
4828  * This routine is invoked to post rpi header templates to the
4829  * HBA consistent with the SLI-4 interface spec.  This routine
4830  * posts a PAGE_SIZE memory region to the port to hold up to
4831  * PAGE_SIZE modulo 64 rpi context headers.
4832  * No locks are held here because this is an initialization routine
4833  * called only from probe or lpfc_online when interrupts are not
4834  * enabled and the driver is reinitializing the device.
4835  *
4836  * Return codes
4837  *      0 - successful
4838  *      -ENOMEM - No availble memory
4839  *      -EIO - The mailbox failed to complete successfully.
4840  **/
4841 int
4842 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4843 {
4844         int rc = 0;
4845         int longs;
4846         uint16_t rpi_count;
4847         struct lpfc_rpi_hdr *rpi_hdr;
4848
4849         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4850
4851         /*
4852          * Provision an rpi bitmask range for discovery. The total count
4853          * is the difference between max and base + 1.
4854          */
4855         rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4856                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4857
4858         longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4859         phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4860                                            GFP_KERNEL);
4861         if (!phba->sli4_hba.rpi_bmask)
4862                 return -ENOMEM;
4863
4864         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4865         if (!rpi_hdr) {
4866                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4867                                 "0391 Error during rpi post operation\n");
4868                 lpfc_sli4_remove_rpis(phba);
4869                 rc = -ENODEV;
4870         }
4871
4872         return rc;
4873 }
4874
4875 /**
4876  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4877  * @phba: pointer to lpfc hba data structure.
4878  *
4879  * This routine is invoked to allocate a single 4KB memory region to
4880  * support rpis and stores them in the phba.  This single region
4881  * provides support for up to 64 rpis.  The region is used globally
4882  * by the device.
4883  *
4884  * Returns:
4885  *   A valid rpi hdr on success.
4886  *   A NULL pointer on any failure.
4887  **/
4888 struct lpfc_rpi_hdr *
4889 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4890 {
4891         uint16_t rpi_limit, curr_rpi_range;
4892         struct lpfc_dmabuf *dmabuf;
4893         struct lpfc_rpi_hdr *rpi_hdr;
4894
4895         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4896                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4897
4898         spin_lock_irq(&phba->hbalock);
4899         curr_rpi_range = phba->sli4_hba.next_rpi;
4900         spin_unlock_irq(&phba->hbalock);
4901
4902         /*
4903          * The port has a limited number of rpis. The increment here
4904          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4905          * and to allow the full max_rpi range per port.
4906          */
4907         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4908                 return NULL;
4909
4910         /*
4911          * First allocate the protocol header region for the port.  The
4912          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4913          */
4914         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4915         if (!dmabuf)
4916                 return NULL;
4917
4918         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4919                                           LPFC_HDR_TEMPLATE_SIZE,
4920                                           &dmabuf->phys,
4921                                           GFP_KERNEL);
4922         if (!dmabuf->virt) {
4923                 rpi_hdr = NULL;
4924                 goto err_free_dmabuf;
4925         }
4926
4927         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4928         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4929                 rpi_hdr = NULL;
4930                 goto err_free_coherent;
4931         }
4932
4933         /* Save the rpi header data for cleanup later. */
4934         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4935         if (!rpi_hdr)
4936                 goto err_free_coherent;
4937
4938         rpi_hdr->dmabuf = dmabuf;
4939         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4940         rpi_hdr->page_count = 1;
4941         spin_lock_irq(&phba->hbalock);
4942         rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4943         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4944
4945         /*
4946          * The next_rpi stores the next module-64 rpi value to post
4947          * in any subsequent rpi memory region postings.
4948          */
4949         phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4950         spin_unlock_irq(&phba->hbalock);
4951         return rpi_hdr;
4952
4953  err_free_coherent:
4954         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4955                           dmabuf->virt, dmabuf->phys);
4956  err_free_dmabuf:
4957         kfree(dmabuf);
4958         return NULL;
4959 }
4960
4961 /**
4962  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4963  * @phba: pointer to lpfc hba data structure.
4964  *
4965  * This routine is invoked to remove all memory resources allocated
4966  * to support rpis. This routine presumes the caller has released all
4967  * rpis consumed by fabric or port logins and is prepared to have
4968  * the header pages removed.
4969  **/
4970 void
4971 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4972 {
4973         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4974
4975         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4976                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4977                 list_del(&rpi_hdr->list);
4978                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4979                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4980                 kfree(rpi_hdr->dmabuf);
4981                 kfree(rpi_hdr);
4982         }
4983
4984         phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4985         memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4986 }
4987
4988 /**
4989  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4990  * @pdev: pointer to pci device data structure.
4991  *
4992  * This routine is invoked to allocate the driver hba data structure for an
4993  * HBA device. If the allocation is successful, the phba reference to the
4994  * PCI device data structure is set.
4995  *
4996  * Return codes
4997  *      pointer to @phba - successful
4998  *      NULL - error
4999  **/
5000 static struct lpfc_hba *
5001 lpfc_hba_alloc(struct pci_dev *pdev)
5002 {
5003         struct lpfc_hba *phba;
5004
5005         /* Allocate memory for HBA structure */
5006         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5007         if (!phba) {
5008                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5009                 return NULL;
5010         }
5011
5012         /* Set reference to PCI device in HBA structure */
5013         phba->pcidev = pdev;
5014
5015         /* Assign an unused board number */
5016         phba->brd_no = lpfc_get_instance();
5017         if (phba->brd_no < 0) {
5018                 kfree(phba);
5019                 return NULL;
5020         }
5021
5022         spin_lock_init(&phba->ct_ev_lock);
5023         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5024
5025         return phba;
5026 }
5027
5028 /**
5029  * lpfc_hba_free - Free driver hba data structure with a device.
5030  * @phba: pointer to lpfc hba data structure.
5031  *
5032  * This routine is invoked to free the driver hba data structure with an
5033  * HBA device.
5034  **/
5035 static void
5036 lpfc_hba_free(struct lpfc_hba *phba)
5037 {
5038         /* Release the driver assigned board number */
5039         idr_remove(&lpfc_hba_index, phba->brd_no);
5040
5041         kfree(phba);
5042         return;
5043 }
5044
5045 /**
5046  * lpfc_create_shost - Create hba physical port with associated scsi host.
5047  * @phba: pointer to lpfc hba data structure.
5048  *
5049  * This routine is invoked to create HBA physical port and associate a SCSI
5050  * host with it.
5051  *
5052  * Return codes
5053  *      0 - successful
5054  *      other values - error
5055  **/
5056 static int
5057 lpfc_create_shost(struct lpfc_hba *phba)
5058 {
5059         struct lpfc_vport *vport;
5060         struct Scsi_Host  *shost;
5061
5062         /* Initialize HBA FC structure */
5063         phba->fc_edtov = FF_DEF_EDTOV;
5064         phba->fc_ratov = FF_DEF_RATOV;
5065         phba->fc_altov = FF_DEF_ALTOV;
5066         phba->fc_arbtov = FF_DEF_ARBTOV;
5067
5068         atomic_set(&phba->sdev_cnt, 0);
5069         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5070         if (!vport)
5071                 return -ENODEV;
5072
5073         shost = lpfc_shost_from_vport(vport);
5074         phba->pport = vport;
5075         lpfc_debugfs_initialize(vport);
5076         /* Put reference to SCSI host to driver's device private data */
5077         pci_set_drvdata(phba->pcidev, shost);
5078
5079         return 0;
5080 }
5081
5082 /**
5083  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5084  * @phba: pointer to lpfc hba data structure.
5085  *
5086  * This routine is invoked to destroy HBA physical port and the associated
5087  * SCSI host.
5088  **/
5089 static void
5090 lpfc_destroy_shost(struct lpfc_hba *phba)
5091 {
5092         struct lpfc_vport *vport = phba->pport;
5093
5094         /* Destroy physical port that associated with the SCSI host */
5095         destroy_port(vport);
5096
5097         return;
5098 }
5099
5100 /**
5101  * lpfc_setup_bg - Setup Block guard structures and debug areas.
5102  * @phba: pointer to lpfc hba data structure.
5103  * @shost: the shost to be used to detect Block guard settings.
5104  *
5105  * This routine sets up the local Block guard protocol settings for @shost.
5106  * This routine also allocates memory for debugging bg buffers.
5107  **/
5108 static void
5109 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5110 {
5111         int pagecnt = 10;
5112         if (lpfc_prot_mask && lpfc_prot_guard) {
5113                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5114                                 "1478 Registering BlockGuard with the "
5115                                 "SCSI layer\n");
5116                 scsi_host_set_prot(shost, lpfc_prot_mask);
5117                 scsi_host_set_guard(shost, lpfc_prot_guard);
5118         }
5119         if (!_dump_buf_data) {
5120                 while (pagecnt) {
5121                         spin_lock_init(&_dump_buf_lock);
5122                         _dump_buf_data =
5123                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5124                         if (_dump_buf_data) {
5125                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5126                                         "9043 BLKGRD: allocated %d pages for "
5127                                        "_dump_buf_data at 0x%p\n",
5128                                        (1 << pagecnt), _dump_buf_data);
5129                                 _dump_buf_data_order = pagecnt;
5130                                 memset(_dump_buf_data, 0,
5131                                        ((1 << PAGE_SHIFT) << pagecnt));
5132                                 break;
5133                         } else
5134                                 --pagecnt;
5135                 }
5136                 if (!_dump_buf_data_order)
5137                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5138                                 "9044 BLKGRD: ERROR unable to allocate "
5139                                "memory for hexdump\n");
5140         } else
5141                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5142                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5143                        "\n", _dump_buf_data);
5144         if (!_dump_buf_dif) {
5145                 while (pagecnt) {
5146                         _dump_buf_dif =
5147                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5148                         if (_dump_buf_dif) {
5149                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5150                                         "9046 BLKGRD: allocated %d pages for "
5151                                        "_dump_buf_dif at 0x%p\n",
5152                                        (1 << pagecnt), _dump_buf_dif);
5153                                 _dump_buf_dif_order = pagecnt;
5154                                 memset(_dump_buf_dif, 0,
5155                                        ((1 << PAGE_SHIFT) << pagecnt));
5156                                 break;
5157                         } else
5158                                 --pagecnt;
5159                 }
5160                 if (!_dump_buf_dif_order)
5161                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5162                         "9047 BLKGRD: ERROR unable to allocate "
5163                                "memory for hexdump\n");
5164         } else
5165                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5166                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5167                        _dump_buf_dif);
5168 }
5169
5170 /**
5171  * lpfc_post_init_setup - Perform necessary device post initialization setup.
5172  * @phba: pointer to lpfc hba data structure.
5173  *
5174  * This routine is invoked to perform all the necessary post initialization
5175  * setup for the device.
5176  **/
5177 static void
5178 lpfc_post_init_setup(struct lpfc_hba *phba)
5179 {
5180         struct Scsi_Host  *shost;
5181         struct lpfc_adapter_event_header adapter_event;
5182
5183         /* Get the default values for Model Name and Description */
5184         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5185
5186         /*
5187          * hba setup may have changed the hba_queue_depth so we need to
5188          * adjust the value of can_queue.
5189          */
5190         shost = pci_get_drvdata(phba->pcidev);
5191         shost->can_queue = phba->cfg_hba_queue_depth - 10;
5192         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5193                 lpfc_setup_bg(phba, shost);
5194
5195         lpfc_host_attrib_init(shost);
5196
5197         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5198                 spin_lock_irq(shost->host_lock);
5199                 lpfc_poll_start_timer(phba);
5200                 spin_unlock_irq(shost->host_lock);
5201         }
5202
5203         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5204                         "0428 Perform SCSI scan\n");
5205         /* Send board arrival event to upper layer */
5206         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5207         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5208         fc_host_post_vendor_event(shost, fc_get_event_number(),
5209                                   sizeof(adapter_event),
5210                                   (char *) &adapter_event,
5211                                   LPFC_NL_VENDOR_ID);
5212         return;
5213 }
5214
5215 /**
5216  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5217  * @phba: pointer to lpfc hba data structure.
5218  *
5219  * This routine is invoked to set up the PCI device memory space for device
5220  * with SLI-3 interface spec.
5221  *
5222  * Return codes
5223  *      0 - successful
5224  *      other values - error
5225  **/
5226 static int
5227 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5228 {
5229         struct pci_dev *pdev;
5230         unsigned long bar0map_len, bar2map_len;
5231         int i, hbq_count;
5232         void *ptr;
5233         int error = -ENODEV;
5234
5235         /* Obtain PCI device reference */
5236         if (!phba->pcidev)
5237                 return error;
5238         else
5239                 pdev = phba->pcidev;
5240
5241         /* Set the device DMA mask size */
5242         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5243          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5244                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5245                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5246                         return error;
5247                 }
5248         }
5249
5250         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5251          * required by each mapping.
5252          */
5253         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5254         bar0map_len = pci_resource_len(pdev, 0);
5255
5256         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5257         bar2map_len = pci_resource_len(pdev, 2);
5258
5259         /* Map HBA SLIM to a kernel virtual address. */
5260         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5261         if (!phba->slim_memmap_p) {
5262                 dev_printk(KERN_ERR, &pdev->dev,
5263                            "ioremap failed for SLIM memory.\n");
5264                 goto out;
5265         }
5266
5267         /* Map HBA Control Registers to a kernel virtual address. */
5268         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5269         if (!phba->ctrl_regs_memmap_p) {
5270                 dev_printk(KERN_ERR, &pdev->dev,
5271                            "ioremap failed for HBA control registers.\n");
5272                 goto out_iounmap_slim;
5273         }
5274
5275         /* Allocate memory for SLI-2 structures */
5276         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5277                                                SLI2_SLIM_SIZE,
5278                                                &phba->slim2p.phys,
5279                                                GFP_KERNEL);
5280         if (!phba->slim2p.virt)
5281                 goto out_iounmap;
5282
5283         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5284         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5285         phba->mbox_ext = (phba->slim2p.virt +
5286                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5287         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5288         phba->IOCBs = (phba->slim2p.virt +
5289                        offsetof(struct lpfc_sli2_slim, IOCBs));
5290
5291         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5292                                                  lpfc_sli_hbq_size(),
5293                                                  &phba->hbqslimp.phys,
5294                                                  GFP_KERNEL);
5295         if (!phba->hbqslimp.virt)
5296                 goto out_free_slim;
5297
5298         hbq_count = lpfc_sli_hbq_count();
5299         ptr = phba->hbqslimp.virt;
5300         for (i = 0; i < hbq_count; ++i) {
5301                 phba->hbqs[i].hbq_virt = ptr;
5302                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5303                 ptr += (lpfc_hbq_defs[i]->entry_count *
5304                         sizeof(struct lpfc_hbq_entry));
5305         }
5306         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5307         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5308
5309         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5310
5311         INIT_LIST_HEAD(&phba->rb_pend_list);
5312
5313         phba->MBslimaddr = phba->slim_memmap_p;
5314         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5315         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5316         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5317         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5318
5319         return 0;
5320
5321 out_free_slim:
5322         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5323                           phba->slim2p.virt, phba->slim2p.phys);
5324 out_iounmap:
5325         iounmap(phba->ctrl_regs_memmap_p);
5326 out_iounmap_slim:
5327         iounmap(phba->slim_memmap_p);
5328 out:
5329         return error;
5330 }
5331
5332 /**
5333  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5334  * @phba: pointer to lpfc hba data structure.
5335  *
5336  * This routine is invoked to unset the PCI device memory space for device
5337  * with SLI-3 interface spec.
5338  **/
5339 static void
5340 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5341 {
5342         struct pci_dev *pdev;
5343
5344         /* Obtain PCI device reference */
5345         if (!phba->pcidev)
5346                 return;
5347         else
5348                 pdev = phba->pcidev;
5349
5350         /* Free coherent DMA memory allocated */
5351         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5352                           phba->hbqslimp.virt, phba->hbqslimp.phys);
5353         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5354                           phba->slim2p.virt, phba->slim2p.phys);
5355
5356         /* I/O memory unmap */
5357         iounmap(phba->ctrl_regs_memmap_p);
5358         iounmap(phba->slim_memmap_p);
5359
5360         return;
5361 }
5362
5363 /**
5364  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5365  * @phba: pointer to lpfc hba data structure.
5366  *
5367  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5368  * done and check status.
5369  *
5370  * Return 0 if successful, otherwise -ENODEV.
5371  **/
5372 int
5373 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5374 {
5375         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5376         struct lpfc_register reg_data;
5377         int i, port_error = 0;
5378         uint32_t if_type;
5379
5380         if (!phba->sli4_hba.PSMPHRregaddr)
5381                 return -ENODEV;
5382
5383         /* Wait up to 30 seconds for the SLI Port POST done and ready */
5384         for (i = 0; i < 3000; i++) {
5385                 portsmphr_reg.word0 = readl(phba->sli4_hba.PSMPHRregaddr);
5386                 if (bf_get(lpfc_port_smphr_perr, &portsmphr_reg)) {
5387                         /* Port has a fatal POST error, break out */
5388                         port_error = -ENODEV;
5389                         break;
5390                 }
5391                 if (LPFC_POST_STAGE_PORT_READY ==
5392                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
5393                         break;
5394                 msleep(10);
5395         }
5396
5397         /*
5398          * If there was a port error during POST, then don't proceed with
5399          * other register reads as the data may not be valid.  Just exit.
5400          */
5401         if (port_error) {
5402                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5403                         "1408 Port Failed POST - portsmphr=0x%x, "
5404                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5405                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5406                         portsmphr_reg.word0,
5407                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5408                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5409                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5410                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5411                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5412                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5413                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5414                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5415         } else {
5416                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5417                                 "2534 Device Info: SLIFamily=0x%x, "
5418                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5419                                 "SLIHint_2=0x%x, FT=0x%x\n",
5420                                 bf_get(lpfc_sli_intf_sli_family,
5421                                        &phba->sli4_hba.sli_intf),
5422                                 bf_get(lpfc_sli_intf_slirev,
5423                                        &phba->sli4_hba.sli_intf),
5424                                 bf_get(lpfc_sli_intf_if_type,
5425                                        &phba->sli4_hba.sli_intf),
5426                                 bf_get(lpfc_sli_intf_sli_hint1,
5427                                        &phba->sli4_hba.sli_intf),
5428                                 bf_get(lpfc_sli_intf_sli_hint2,
5429                                        &phba->sli4_hba.sli_intf),
5430                                 bf_get(lpfc_sli_intf_func_type,
5431                                        &phba->sli4_hba.sli_intf));
5432                 /*
5433                  * Check for other Port errors during the initialization
5434                  * process.  Fail the load if the port did not come up
5435                  * correctly.
5436                  */
5437                 if_type = bf_get(lpfc_sli_intf_if_type,
5438                                  &phba->sli4_hba.sli_intf);
5439                 switch (if_type) {
5440                 case LPFC_SLI_INTF_IF_TYPE_0:
5441                         phba->sli4_hba.ue_mask_lo =
5442                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5443                         phba->sli4_hba.ue_mask_hi =
5444                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5445                         uerrlo_reg.word0 =
5446                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5447                         uerrhi_reg.word0 =
5448                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5449                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5450                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5451                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5452                                                 "1422 Unrecoverable Error "
5453                                                 "Detected during POST "
5454                                                 "uerr_lo_reg=0x%x, "
5455                                                 "uerr_hi_reg=0x%x, "
5456                                                 "ue_mask_lo_reg=0x%x, "
5457                                                 "ue_mask_hi_reg=0x%x\n",
5458                                                 uerrlo_reg.word0,
5459                                                 uerrhi_reg.word0,
5460                                                 phba->sli4_hba.ue_mask_lo,
5461                                                 phba->sli4_hba.ue_mask_hi);
5462                                 port_error = -ENODEV;
5463                         }
5464                         break;
5465                 case LPFC_SLI_INTF_IF_TYPE_2:
5466                         /* Final checks.  The port status should be clean. */
5467                         reg_data.word0 =
5468                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
5469                         if (bf_get(lpfc_sliport_status_err, &reg_data)) {
5470                                 phba->work_status[0] =
5471                                         readl(phba->sli4_hba.u.if_type2.
5472                                               ERR1regaddr);
5473                                 phba->work_status[1] =
5474                                         readl(phba->sli4_hba.u.if_type2.
5475                                               ERR2regaddr);
5476                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5477                                         "2888 Port Error Detected "
5478                                         "during POST: "
5479                                         "port status reg 0x%x, "
5480                                         "port_smphr reg 0x%x, "
5481                                         "error 1=0x%x, error 2=0x%x\n",
5482                                         reg_data.word0,
5483                                         portsmphr_reg.word0,
5484                                         phba->work_status[0],
5485                                         phba->work_status[1]);
5486                                 port_error = -ENODEV;
5487                         }
5488                         break;
5489                 case LPFC_SLI_INTF_IF_TYPE_1:
5490                 default:
5491                         break;
5492                 }
5493         }
5494         return port_error;
5495 }
5496
5497 /**
5498  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5499  * @phba: pointer to lpfc hba data structure.
5500  * @if_type:  The SLI4 interface type getting configured.
5501  *
5502  * This routine is invoked to set up SLI4 BAR0 PCI config space register
5503  * memory map.
5504  **/
5505 static void
5506 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5507 {
5508         switch (if_type) {
5509         case LPFC_SLI_INTF_IF_TYPE_0:
5510                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5511                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5512                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5513                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5514                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5515                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5516                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5517                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5518                 phba->sli4_hba.SLIINTFregaddr =
5519                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5520                 break;
5521         case LPFC_SLI_INTF_IF_TYPE_2:
5522                 phba->sli4_hba.u.if_type2.ERR1regaddr =
5523                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_1;
5524                 phba->sli4_hba.u.if_type2.ERR2regaddr =
5525                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_2;
5526                 phba->sli4_hba.u.if_type2.CTRLregaddr =
5527                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_CNTRL;
5528                 phba->sli4_hba.u.if_type2.STATUSregaddr =
5529                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_STATUS;
5530                 phba->sli4_hba.SLIINTFregaddr =
5531                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5532                 phba->sli4_hba.PSMPHRregaddr =
5533                      phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_IF2_SMPHR;
5534                 phba->sli4_hba.RQDBregaddr =
5535                         phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5536                 phba->sli4_hba.WQDBregaddr =
5537                         phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5538                 phba->sli4_hba.EQCQDBregaddr =
5539                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5540                 phba->sli4_hba.MQDBregaddr =
5541                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5542                 phba->sli4_hba.BMBXregaddr =
5543                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5544                 break;
5545         case LPFC_SLI_INTF_IF_TYPE_1:
5546         default:
5547                 dev_printk(KERN_ERR, &phba->pcidev->dev,
5548                            "FATAL - unsupported SLI4 interface type - %d\n",
5549                            if_type);
5550                 break;
5551         }
5552 }
5553
5554 /**
5555  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5556  * @phba: pointer to lpfc hba data structure.
5557  *
5558  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5559  * memory map.
5560  **/
5561 static void
5562 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5563 {
5564         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5565                 LPFC_SLIPORT_IF0_SMPHR;
5566         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5567                 LPFC_HST_ISR0;
5568         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5569                 LPFC_HST_IMR0;
5570         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5571                 LPFC_HST_ISCR0;
5572 }
5573
5574 /**
5575  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5576  * @phba: pointer to lpfc hba data structure.
5577  * @vf: virtual function number
5578  *
5579  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5580  * based on the given viftual function number, @vf.
5581  *
5582  * Return 0 if successful, otherwise -ENODEV.
5583  **/
5584 static int
5585 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5586 {
5587         if (vf > LPFC_VIR_FUNC_MAX)
5588                 return -ENODEV;
5589
5590         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5591                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5592         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5593                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5594         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5595                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5596         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5597                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5598         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5599                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5600         return 0;
5601 }
5602
5603 /**
5604  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5605  * @phba: pointer to lpfc hba data structure.
5606  *
5607  * This routine is invoked to create the bootstrap mailbox
5608  * region consistent with the SLI-4 interface spec.  This
5609  * routine allocates all memory necessary to communicate
5610  * mailbox commands to the port and sets up all alignment
5611  * needs.  No locks are expected to be held when calling
5612  * this routine.
5613  *
5614  * Return codes
5615  *      0 - successful
5616  *      -ENOMEM - could not allocated memory.
5617  **/
5618 static int
5619 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5620 {
5621         uint32_t bmbx_size;
5622         struct lpfc_dmabuf *dmabuf;
5623         struct dma_address *dma_address;
5624         uint32_t pa_addr;
5625         uint64_t phys_addr;
5626
5627         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5628         if (!dmabuf)
5629                 return -ENOMEM;
5630
5631         /*
5632          * The bootstrap mailbox region is comprised of 2 parts
5633          * plus an alignment restriction of 16 bytes.
5634          */
5635         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5636         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5637                                           bmbx_size,
5638                                           &dmabuf->phys,
5639                                           GFP_KERNEL);
5640         if (!dmabuf->virt) {
5641                 kfree(dmabuf);
5642                 return -ENOMEM;
5643         }
5644         memset(dmabuf->virt, 0, bmbx_size);
5645
5646         /*
5647          * Initialize the bootstrap mailbox pointers now so that the register
5648          * operations are simple later.  The mailbox dma address is required
5649          * to be 16-byte aligned.  Also align the virtual memory as each
5650          * maibox is copied into the bmbx mailbox region before issuing the
5651          * command to the port.
5652          */
5653         phba->sli4_hba.bmbx.dmabuf = dmabuf;
5654         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5655
5656         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5657                                               LPFC_ALIGN_16_BYTE);
5658         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5659                                               LPFC_ALIGN_16_BYTE);
5660
5661         /*
5662          * Set the high and low physical addresses now.  The SLI4 alignment
5663          * requirement is 16 bytes and the mailbox is posted to the port
5664          * as two 30-bit addresses.  The other data is a bit marking whether
5665          * the 30-bit address is the high or low address.
5666          * Upcast bmbx aphys to 64bits so shift instruction compiles
5667          * clean on 32 bit machines.
5668          */
5669         dma_address = &phba->sli4_hba.bmbx.dma_address;
5670         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5671         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5672         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5673                                            LPFC_BMBX_BIT1_ADDR_HI);
5674
5675         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5676         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5677                                            LPFC_BMBX_BIT1_ADDR_LO);
5678         return 0;
5679 }
5680
5681 /**
5682  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5683  * @phba: pointer to lpfc hba data structure.
5684  *
5685  * This routine is invoked to teardown the bootstrap mailbox
5686  * region and release all host resources. This routine requires
5687  * the caller to ensure all mailbox commands recovered, no
5688  * additional mailbox comands are sent, and interrupts are disabled
5689  * before calling this routine.
5690  *
5691  **/
5692 static void
5693 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5694 {
5695         dma_free_coherent(&phba->pcidev->dev,
5696                           phba->sli4_hba.bmbx.bmbx_size,
5697                           phba->sli4_hba.bmbx.dmabuf->virt,
5698                           phba->sli4_hba.bmbx.dmabuf->phys);
5699
5700         kfree(phba->sli4_hba.bmbx.dmabuf);
5701         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5702 }
5703
5704 /**
5705  * lpfc_sli4_read_config - Get the config parameters.
5706  * @phba: pointer to lpfc hba data structure.
5707  *
5708  * This routine is invoked to read the configuration parameters from the HBA.
5709  * The configuration parameters are used to set the base and maximum values
5710  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5711  * allocation for the port.
5712  *
5713  * Return codes
5714  *      0 - successful
5715  *      -ENOMEM - No availble memory
5716  *      -EIO - The mailbox failed to complete successfully.
5717  **/
5718 static int
5719 lpfc_sli4_read_config(struct lpfc_hba *phba)
5720 {
5721         LPFC_MBOXQ_t *pmb;
5722         struct lpfc_mbx_read_config *rd_config;
5723         uint32_t rc = 0;
5724
5725         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5726         if (!pmb) {
5727                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5728                                 "2011 Unable to allocate memory for issuing "
5729                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5730                 return -ENOMEM;
5731         }
5732
5733         lpfc_read_config(phba, pmb);
5734
5735         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5736         if (rc != MBX_SUCCESS) {
5737                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5738                         "2012 Mailbox failed , mbxCmd x%x "
5739                         "READ_CONFIG, mbxStatus x%x\n",
5740                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
5741                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
5742                 rc = -EIO;
5743         } else {
5744                 rd_config = &pmb->u.mqe.un.rd_config;
5745                 phba->sli4_hba.max_cfg_param.max_xri =
5746                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5747                 phba->sli4_hba.max_cfg_param.xri_base =
5748                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5749                 phba->sli4_hba.max_cfg_param.max_vpi =
5750                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5751                 phba->sli4_hba.max_cfg_param.vpi_base =
5752                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5753                 phba->sli4_hba.max_cfg_param.max_rpi =
5754                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5755                 phba->sli4_hba.max_cfg_param.rpi_base =
5756                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5757                 phba->sli4_hba.max_cfg_param.max_vfi =
5758                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5759                 phba->sli4_hba.max_cfg_param.vfi_base =
5760                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5761                 phba->sli4_hba.max_cfg_param.max_fcfi =
5762                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5763                 phba->sli4_hba.max_cfg_param.fcfi_base =
5764                         bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
5765                 phba->sli4_hba.max_cfg_param.max_eq =
5766                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5767                 phba->sli4_hba.max_cfg_param.max_rq =
5768                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5769                 phba->sli4_hba.max_cfg_param.max_wq =
5770                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5771                 phba->sli4_hba.max_cfg_param.max_cq =
5772                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5773                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5774                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5775                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5776                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5777                 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5778                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5779                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5780                 phba->max_vports = phba->max_vpi;
5781                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5782                                 "2003 cfg params XRI(B:%d M:%d), "
5783                                 "VPI(B:%d M:%d) "
5784                                 "VFI(B:%d M:%d) "
5785                                 "RPI(B:%d M:%d) "
5786                                 "FCFI(B:%d M:%d)\n",
5787                                 phba->sli4_hba.max_cfg_param.xri_base,
5788                                 phba->sli4_hba.max_cfg_param.max_xri,
5789                                 phba->sli4_hba.max_cfg_param.vpi_base,
5790                                 phba->sli4_hba.max_cfg_param.max_vpi,
5791                                 phba->sli4_hba.max_cfg_param.vfi_base,
5792                                 phba->sli4_hba.max_cfg_param.max_vfi,
5793                                 phba->sli4_hba.max_cfg_param.rpi_base,
5794                                 phba->sli4_hba.max_cfg_param.max_rpi,
5795                                 phba->sli4_hba.max_cfg_param.fcfi_base,
5796                                 phba->sli4_hba.max_cfg_param.max_fcfi);
5797         }
5798         mempool_free(pmb, phba->mbox_mem_pool);
5799
5800         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
5801         if (phba->cfg_hba_queue_depth >
5802                 (phba->sli4_hba.max_cfg_param.max_xri -
5803                         lpfc_sli4_get_els_iocb_cnt(phba)))
5804                 phba->cfg_hba_queue_depth =
5805                         phba->sli4_hba.max_cfg_param.max_xri -
5806                                 lpfc_sli4_get_els_iocb_cnt(phba);
5807         return rc;
5808 }
5809
5810 /**
5811  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
5812  * @phba: pointer to lpfc hba data structure.
5813  *
5814  * This routine is invoked to setup the port-side endian order when
5815  * the port if_type is 0.  This routine has no function for other
5816  * if_types.
5817  *
5818  * Return codes
5819  *      0 - successful
5820  *      -ENOMEM - No availble memory
5821  *      -EIO - The mailbox failed to complete successfully.
5822  **/
5823 static int
5824 lpfc_setup_endian_order(struct lpfc_hba *phba)
5825 {
5826         LPFC_MBOXQ_t *mboxq;
5827         uint32_t if_type, rc = 0;
5828         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
5829                                       HOST_ENDIAN_HIGH_WORD1};
5830
5831         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
5832         switch (if_type) {
5833         case LPFC_SLI_INTF_IF_TYPE_0:
5834                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5835                                                        GFP_KERNEL);
5836                 if (!mboxq) {
5837                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5838                                         "0492 Unable to allocate memory for "
5839                                         "issuing SLI_CONFIG_SPECIAL mailbox "
5840                                         "command\n");
5841                         return -ENOMEM;
5842                 }
5843
5844                 /*
5845                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
5846                  * two words to contain special data values and no other data.
5847                  */
5848                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5849                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5850                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5851                 if (rc != MBX_SUCCESS) {
5852                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5853                                         "0493 SLI_CONFIG_SPECIAL mailbox "
5854                                         "failed with status x%x\n",
5855                                         rc);
5856                         rc = -EIO;
5857                 }
5858                 mempool_free(mboxq, phba->mbox_mem_pool);
5859                 break;
5860         case LPFC_SLI_INTF_IF_TYPE_2:
5861         case LPFC_SLI_INTF_IF_TYPE_1:
5862         default:
5863                 break;
5864         }
5865         return rc;
5866 }
5867
5868 /**
5869  * lpfc_sli4_queue_create - Create all the SLI4 queues
5870  * @phba: pointer to lpfc hba data structure.
5871  *
5872  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5873  * operation. For each SLI4 queue type, the parameters such as queue entry
5874  * count (queue depth) shall be taken from the module parameter. For now,
5875  * we just use some constant number as place holder.
5876  *
5877  * Return codes
5878  *      0 - successful
5879  *      -ENOMEM - No availble memory
5880  *      -EIO - The mailbox failed to complete successfully.
5881  **/
5882 static int
5883 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5884 {
5885         struct lpfc_queue *qdesc;
5886         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5887         int cfg_fcp_wq_count;
5888         int cfg_fcp_eq_count;
5889
5890         /*
5891          * Sanity check for confiugred queue parameters against the run-time
5892          * device parameters
5893          */
5894
5895         /* Sanity check on FCP fast-path WQ parameters */
5896         cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5897         if (cfg_fcp_wq_count >
5898             (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5899                 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5900                                    LPFC_SP_WQN_DEF;
5901                 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5902                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5903                                         "2581 Not enough WQs (%d) from "
5904                                         "the pci function for supporting "
5905                                         "FCP WQs (%d)\n",
5906                                         phba->sli4_hba.max_cfg_param.max_wq,
5907                                         phba->cfg_fcp_wq_count);
5908                         goto out_error;
5909                 }
5910                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5911                                 "2582 Not enough WQs (%d) from the pci "
5912                                 "function for supporting the requested "
5913                                 "FCP WQs (%d), the actual FCP WQs can "
5914                                 "be supported: %d\n",
5915                                 phba->sli4_hba.max_cfg_param.max_wq,
5916                                 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5917         }
5918         /* The actual number of FCP work queues adopted */
5919         phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5920
5921         /* Sanity check on FCP fast-path EQ parameters */
5922         cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5923         if (cfg_fcp_eq_count >
5924             (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5925                 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5926                                    LPFC_SP_EQN_DEF;
5927                 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5928                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5929                                         "2574 Not enough EQs (%d) from the "
5930                                         "pci function for supporting FCP "
5931                                         "EQs (%d)\n",
5932                                         phba->sli4_hba.max_cfg_param.max_eq,
5933                                         phba->cfg_fcp_eq_count);
5934                         goto out_error;
5935                 }
5936                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5937                                 "2575 Not enough EQs (%d) from the pci "
5938                                 "function for supporting the requested "
5939                                 "FCP EQs (%d), the actual FCP EQs can "
5940                                 "be supported: %d\n",
5941                                 phba->sli4_hba.max_cfg_param.max_eq,
5942                                 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5943         }
5944         /* It does not make sense to have more EQs than WQs */
5945         if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5946                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5947                                 "2593 The FCP EQ count(%d) cannot be greater "
5948                                 "than the FCP WQ count(%d), limiting the "
5949                                 "FCP EQ count to %d\n", cfg_fcp_eq_count,
5950                                 phba->cfg_fcp_wq_count,
5951                                 phba->cfg_fcp_wq_count);
5952                 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5953         }
5954         /* The actual number of FCP event queues adopted */
5955         phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5956         /* The overall number of event queues used */
5957         phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
5958
5959         /*
5960          * Create Event Queues (EQs)
5961          */
5962
5963         /* Get EQ depth from module parameter, fake the default for now */
5964         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5965         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5966
5967         /* Create slow path event queue */
5968         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5969                                       phba->sli4_hba.eq_ecount);
5970         if (!qdesc) {
5971                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5972                                 "0496 Failed allocate slow-path EQ\n");
5973                 goto out_error;
5974         }
5975         phba->sli4_hba.sp_eq = qdesc;
5976
5977         /* Create fast-path FCP Event Queue(s) */
5978         phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5979                                phba->cfg_fcp_eq_count), GFP_KERNEL);
5980         if (!phba->sli4_hba.fp_eq) {
5981                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5982                                 "2576 Failed allocate memory for fast-path "
5983                                 "EQ record array\n");
5984                 goto out_free_sp_eq;
5985         }
5986         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5987                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5988                                               phba->sli4_hba.eq_ecount);
5989                 if (!qdesc) {
5990                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5991                                         "0497 Failed allocate fast-path EQ\n");
5992                         goto out_free_fp_eq;
5993                 }
5994                 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
5995         }
5996
5997         /*
5998          * Create Complete Queues (CQs)
5999          */
6000
6001         /* Get CQ depth from module parameter, fake the default for now */
6002         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6003         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6004
6005         /* Create slow-path Mailbox Command Complete Queue */
6006         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6007                                       phba->sli4_hba.cq_ecount);
6008         if (!qdesc) {
6009                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6010                                 "0500 Failed allocate slow-path mailbox CQ\n");
6011                 goto out_free_fp_eq;
6012         }
6013         phba->sli4_hba.mbx_cq = qdesc;
6014
6015         /* Create slow-path ELS Complete Queue */
6016         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6017                                       phba->sli4_hba.cq_ecount);
6018         if (!qdesc) {
6019                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6020                                 "0501 Failed allocate slow-path ELS CQ\n");
6021                 goto out_free_mbx_cq;
6022         }
6023         phba->sli4_hba.els_cq = qdesc;
6024
6025
6026         /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
6027         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6028                                 phba->cfg_fcp_eq_count), GFP_KERNEL);
6029         if (!phba->sli4_hba.fcp_cq) {
6030                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6031                                 "2577 Failed allocate memory for fast-path "
6032                                 "CQ record array\n");
6033                 goto out_free_els_cq;
6034         }
6035         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6036                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6037                                               phba->sli4_hba.cq_ecount);
6038                 if (!qdesc) {
6039                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6040                                         "0499 Failed allocate fast-path FCP "
6041                                         "CQ (%d)\n", fcp_cqidx);
6042                         goto out_free_fcp_cq;
6043                 }
6044                 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6045         }
6046
6047         /* Create Mailbox Command Queue */
6048         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6049         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6050
6051         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6052                                       phba->sli4_hba.mq_ecount);
6053         if (!qdesc) {
6054                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6055                                 "0505 Failed allocate slow-path MQ\n");
6056                 goto out_free_fcp_cq;
6057         }
6058         phba->sli4_hba.mbx_wq = qdesc;
6059
6060         /*
6061          * Create all the Work Queues (WQs)
6062          */
6063         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6064         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6065
6066         /* Create slow-path ELS Work Queue */
6067         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6068                                       phba->sli4_hba.wq_ecount);
6069         if (!qdesc) {
6070                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6071                                 "0504 Failed allocate slow-path ELS WQ\n");
6072                 goto out_free_mbx_wq;
6073         }
6074         phba->sli4_hba.els_wq = qdesc;
6075
6076         /* Create fast-path FCP Work Queue(s) */
6077         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6078                                 phba->cfg_fcp_wq_count), GFP_KERNEL);
6079         if (!phba->sli4_hba.fcp_wq) {
6080                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6081                                 "2578 Failed allocate memory for fast-path "
6082                                 "WQ record array\n");
6083                 goto out_free_els_wq;
6084         }
6085         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6086                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6087                                               phba->sli4_hba.wq_ecount);
6088                 if (!qdesc) {
6089                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6090                                         "0503 Failed allocate fast-path FCP "
6091                                         "WQ (%d)\n", fcp_wqidx);
6092                         goto out_free_fcp_wq;
6093                 }
6094                 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6095         }
6096
6097         /*
6098          * Create Receive Queue (RQ)
6099          */
6100         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6101         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6102
6103         /* Create Receive Queue for header */
6104         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6105                                       phba->sli4_hba.rq_ecount);
6106         if (!qdesc) {
6107                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6108                                 "0506 Failed allocate receive HRQ\n");
6109                 goto out_free_fcp_wq;
6110         }
6111         phba->sli4_hba.hdr_rq = qdesc;
6112
6113         /* Create Receive Queue for data */
6114         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6115                                       phba->sli4_hba.rq_ecount);
6116         if (!qdesc) {
6117                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6118                                 "0507 Failed allocate receive DRQ\n");
6119                 goto out_free_hdr_rq;
6120         }
6121         phba->sli4_hba.dat_rq = qdesc;
6122
6123         return 0;
6124
6125 out_free_hdr_rq:
6126         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6127         phba->sli4_hba.hdr_rq = NULL;
6128 out_free_fcp_wq:
6129         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6130                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6131                 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6132         }
6133         kfree(phba->sli4_hba.fcp_wq);
6134 out_free_els_wq:
6135         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6136         phba->sli4_hba.els_wq = NULL;
6137 out_free_mbx_wq:
6138         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6139         phba->sli4_hba.mbx_wq = NULL;
6140 out_free_fcp_cq:
6141         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6142                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6143                 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6144         }
6145         kfree(phba->sli4_hba.fcp_cq);
6146 out_free_els_cq:
6147         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6148         phba->sli4_hba.els_cq = NULL;
6149 out_free_mbx_cq:
6150         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6151         phba->sli4_hba.mbx_cq = NULL;
6152 out_free_fp_eq:
6153         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6154                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6155                 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6156         }
6157         kfree(phba->sli4_hba.fp_eq);
6158 out_free_sp_eq:
6159         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6160         phba->sli4_hba.sp_eq = NULL;
6161 out_error:
6162         return -ENOMEM;
6163 }
6164
6165 /**
6166  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6167  * @phba: pointer to lpfc hba data structure.
6168  *
6169  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6170  * operation.
6171  *
6172  * Return codes
6173  *      0 - successful
6174  *      -ENOMEM - No availble memory
6175  *      -EIO - The mailbox failed to complete successfully.
6176  **/
6177 static void
6178 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6179 {
6180         int fcp_qidx;
6181
6182         /* Release mailbox command work queue */
6183         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6184         phba->sli4_hba.mbx_wq = NULL;
6185
6186         /* Release ELS work queue */
6187         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6188         phba->sli4_hba.els_wq = NULL;
6189
6190         /* Release FCP work queue */
6191         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6192                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6193         kfree(phba->sli4_hba.fcp_wq);
6194         phba->sli4_hba.fcp_wq = NULL;
6195
6196         /* Release unsolicited receive queue */
6197         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6198         phba->sli4_hba.hdr_rq = NULL;
6199         lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6200         phba->sli4_hba.dat_rq = NULL;
6201
6202         /* Release ELS complete queue */
6203         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6204         phba->sli4_hba.els_cq = NULL;
6205
6206         /* Release mailbox command complete queue */
6207         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6208         phba->sli4_hba.mbx_cq = NULL;
6209
6210         /* Release FCP response complete queue */
6211         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6212                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
6213         kfree(phba->sli4_hba.fcp_cq);
6214         phba->sli4_hba.fcp_cq = NULL;
6215
6216         /* Release fast-path event queue */
6217         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6218                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6219         kfree(phba->sli4_hba.fp_eq);
6220         phba->sli4_hba.fp_eq = NULL;
6221
6222         /* Release slow-path event queue */
6223         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6224         phba->sli4_hba.sp_eq = NULL;
6225
6226         return;
6227 }
6228
6229 /**
6230  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6231  * @phba: pointer to lpfc hba data structure.
6232  *
6233  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6234  * operation.
6235  *
6236  * Return codes
6237  *      0 - successful
6238  *      -ENOMEM - No availble memory
6239  *      -EIO - The mailbox failed to complete successfully.
6240  **/
6241 int
6242 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6243 {
6244         int rc = -ENOMEM;
6245         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6246         int fcp_cq_index = 0;
6247
6248         /*
6249          * Set up Event Queues (EQs)
6250          */
6251
6252         /* Set up slow-path event queue */
6253         if (!phba->sli4_hba.sp_eq) {
6254                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6255                                 "0520 Slow-path EQ not allocated\n");
6256                 goto out_error;
6257         }
6258         rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6259                             LPFC_SP_DEF_IMAX);
6260         if (rc) {
6261                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6262                                 "0521 Failed setup of slow-path EQ: "
6263                                 "rc = 0x%x\n", rc);
6264                 goto out_error;
6265         }
6266         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6267                         "2583 Slow-path EQ setup: queue-id=%d\n",
6268                         phba->sli4_hba.sp_eq->queue_id);
6269
6270         /* Set up fast-path event queue */
6271         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6272                 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6273                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6274                                         "0522 Fast-path EQ (%d) not "
6275                                         "allocated\n", fcp_eqidx);
6276                         goto out_destroy_fp_eq;
6277                 }
6278                 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6279                                     phba->cfg_fcp_imax);
6280                 if (rc) {
6281                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6282                                         "0523 Failed setup of fast-path EQ "
6283                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6284                         goto out_destroy_fp_eq;
6285                 }
6286                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6287                                 "2584 Fast-path EQ setup: "
6288                                 "queue[%d]-id=%d\n", fcp_eqidx,
6289                                 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6290         }
6291
6292         /*
6293          * Set up Complete Queues (CQs)
6294          */
6295
6296         /* Set up slow-path MBOX Complete Queue as the first CQ */
6297         if (!phba->sli4_hba.mbx_cq) {
6298                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6299                                 "0528 Mailbox CQ not allocated\n");
6300                 goto out_destroy_fp_eq;
6301         }
6302         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6303                             LPFC_MCQ, LPFC_MBOX);
6304         if (rc) {
6305                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6306                                 "0529 Failed setup of slow-path mailbox CQ: "
6307                                 "rc = 0x%x\n", rc);
6308                 goto out_destroy_fp_eq;
6309         }
6310         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6311                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6312                         phba->sli4_hba.mbx_cq->queue_id,
6313                         phba->sli4_hba.sp_eq->queue_id);
6314
6315         /* Set up slow-path ELS Complete Queue */
6316         if (!phba->sli4_hba.els_cq) {
6317                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6318                                 "0530 ELS CQ not allocated\n");
6319                 goto out_destroy_mbx_cq;
6320         }
6321         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6322                             LPFC_WCQ, LPFC_ELS);
6323         if (rc) {
6324                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6325                                 "0531 Failed setup of slow-path ELS CQ: "
6326                                 "rc = 0x%x\n", rc);
6327                 goto out_destroy_mbx_cq;
6328         }
6329         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6330                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6331                         phba->sli4_hba.els_cq->queue_id,
6332                         phba->sli4_hba.sp_eq->queue_id);
6333
6334         /* Set up fast-path FCP Response Complete Queue */
6335         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6336                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6337                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6338                                         "0526 Fast-path FCP CQ (%d) not "
6339                                         "allocated\n", fcp_cqidx);
6340                         goto out_destroy_fcp_cq;
6341                 }
6342                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
6343                                     phba->sli4_hba.fp_eq[fcp_cqidx],
6344                                     LPFC_WCQ, LPFC_FCP);
6345                 if (rc) {
6346                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6347                                         "0527 Failed setup of fast-path FCP "
6348                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6349                         goto out_destroy_fcp_cq;
6350                 }
6351                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6352                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
6353                                 "parent eq[%d]-id=%d\n",
6354                                 fcp_cqidx,
6355                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6356                                 fcp_cqidx,
6357                                 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
6358         }
6359
6360         /*
6361          * Set up all the Work Queues (WQs)
6362          */
6363
6364         /* Set up Mailbox Command Queue */
6365         if (!phba->sli4_hba.mbx_wq) {
6366                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6367                                 "0538 Slow-path MQ not allocated\n");
6368                 goto out_destroy_fcp_cq;
6369         }
6370         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6371                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
6372         if (rc) {
6373                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6374                                 "0539 Failed setup of slow-path MQ: "
6375                                 "rc = 0x%x\n", rc);
6376                 goto out_destroy_fcp_cq;
6377         }
6378         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6379                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6380                         phba->sli4_hba.mbx_wq->queue_id,
6381                         phba->sli4_hba.mbx_cq->queue_id);
6382
6383         /* Set up slow-path ELS Work Queue */
6384         if (!phba->sli4_hba.els_wq) {
6385                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6386                                 "0536 Slow-path ELS WQ not allocated\n");
6387                 goto out_destroy_mbx_wq;
6388         }
6389         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6390                             phba->sli4_hba.els_cq, LPFC_ELS);
6391         if (rc) {
6392                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6393                                 "0537 Failed setup of slow-path ELS WQ: "
6394                                 "rc = 0x%x\n", rc);
6395                 goto out_destroy_mbx_wq;
6396         }
6397         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6398                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6399                         phba->sli4_hba.els_wq->queue_id,
6400                         phba->sli4_hba.els_cq->queue_id);
6401
6402         /* Set up fast-path FCP Work Queue */
6403         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6404                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6405                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6406                                         "0534 Fast-path FCP WQ (%d) not "
6407                                         "allocated\n", fcp_wqidx);
6408                         goto out_destroy_fcp_wq;
6409                 }
6410                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6411                                     phba->sli4_hba.fcp_cq[fcp_cq_index],
6412                                     LPFC_FCP);
6413                 if (rc) {
6414                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6415                                         "0535 Failed setup of fast-path FCP "
6416                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6417                         goto out_destroy_fcp_wq;
6418                 }
6419                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6420                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
6421                                 "parent cq[%d]-id=%d\n",
6422                                 fcp_wqidx,
6423                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6424                                 fcp_cq_index,
6425                                 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6426                 /* Round robin FCP Work Queue's Completion Queue assignment */
6427                 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
6428         }
6429
6430         /*
6431          * Create Receive Queue (RQ)
6432          */
6433         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6434                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6435                                 "0540 Receive Queue not allocated\n");
6436                 goto out_destroy_fcp_wq;
6437         }
6438         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6439                             phba->sli4_hba.els_cq, LPFC_USOL);
6440         if (rc) {
6441                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6442                                 "0541 Failed setup of Receive Queue: "
6443                                 "rc = 0x%x\n", rc);
6444                 goto out_destroy_fcp_wq;
6445         }
6446         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6447                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6448                         "parent cq-id=%d\n",
6449                         phba->sli4_hba.hdr_rq->queue_id,
6450                         phba->sli4_hba.dat_rq->queue_id,
6451                         phba->sli4_hba.els_cq->queue_id);
6452         return 0;
6453
6454 out_destroy_fcp_wq:
6455         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6456                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6457         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6458 out_destroy_mbx_wq:
6459         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6460 out_destroy_fcp_cq:
6461         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6462                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6463         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6464 out_destroy_mbx_cq:
6465         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6466 out_destroy_fp_eq:
6467         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6468                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6469         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6470 out_error:
6471         return rc;
6472 }
6473
6474 /**
6475  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6476  * @phba: pointer to lpfc hba data structure.
6477  *
6478  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6479  * operation.
6480  *
6481  * Return codes
6482  *      0 - successful
6483  *      -ENOMEM - No availble memory
6484  *      -EIO - The mailbox failed to complete successfully.
6485  **/
6486 void
6487 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6488 {
6489         int fcp_qidx;
6490
6491         /* Unset mailbox command work queue */
6492         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6493         /* Unset ELS work queue */
6494         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6495         /* Unset unsolicited receive queue */
6496         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6497         /* Unset FCP work queue */
6498         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6499                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6500         /* Unset mailbox command complete queue */
6501         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6502         /* Unset ELS complete queue */
6503         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6504         /* Unset FCP response complete queue */
6505         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6506                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6507         /* Unset fast-path event queue */
6508         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6509                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6510         /* Unset slow-path event queue */
6511         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6512 }
6513
6514 /**
6515  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6516  * @phba: pointer to lpfc hba data structure.
6517  *
6518  * This routine is invoked to allocate and set up a pool of completion queue
6519  * events. The body of the completion queue event is a completion queue entry
6520  * CQE. For now, this pool is used for the interrupt service routine to queue
6521  * the following HBA completion queue events for the worker thread to process:
6522  *   - Mailbox asynchronous events
6523  *   - Receive queue completion unsolicited events
6524  * Later, this can be used for all the slow-path events.
6525  *
6526  * Return codes
6527  *      0 - successful
6528  *      -ENOMEM - No availble memory
6529  **/
6530 static int
6531 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6532 {
6533         struct lpfc_cq_event *cq_event;
6534         int i;
6535
6536         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6537                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6538                 if (!cq_event)
6539                         goto out_pool_create_fail;
6540                 list_add_tail(&cq_event->list,
6541                               &phba->sli4_hba.sp_cqe_event_pool);
6542         }
6543         return 0;
6544
6545 out_pool_create_fail:
6546         lpfc_sli4_cq_event_pool_destroy(phba);
6547         return -ENOMEM;
6548 }
6549
6550 /**
6551  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6552  * @phba: pointer to lpfc hba data structure.
6553  *
6554  * This routine is invoked to free the pool of completion queue events at
6555  * driver unload time. Note that, it is the responsibility of the driver
6556  * cleanup routine to free all the outstanding completion-queue events
6557  * allocated from this pool back into the pool before invoking this routine
6558  * to destroy the pool.
6559  **/
6560 static void
6561 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6562 {
6563         struct lpfc_cq_event *cq_event, *next_cq_event;
6564
6565         list_for_each_entry_safe(cq_event, next_cq_event,
6566                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
6567                 list_del(&cq_event->list);
6568                 kfree(cq_event);
6569         }
6570 }
6571
6572 /**
6573  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6574  * @phba: pointer to lpfc hba data structure.
6575  *
6576  * This routine is the lock free version of the API invoked to allocate a
6577  * completion-queue event from the free pool.
6578  *
6579  * Return: Pointer to the newly allocated completion-queue event if successful
6580  *         NULL otherwise.
6581  **/
6582 struct lpfc_cq_event *
6583 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6584 {
6585         struct lpfc_cq_event *cq_event = NULL;
6586
6587         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6588                          struct lpfc_cq_event, list);
6589         return cq_event;
6590 }
6591
6592 /**
6593  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6594  * @phba: pointer to lpfc hba data structure.
6595  *
6596  * This routine is the lock version of the API invoked to allocate a
6597  * completion-queue event from the free pool.
6598  *
6599  * Return: Pointer to the newly allocated completion-queue event if successful
6600  *         NULL otherwise.
6601  **/
6602 struct lpfc_cq_event *
6603 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6604 {
6605         struct lpfc_cq_event *cq_event;
6606         unsigned long iflags;
6607
6608         spin_lock_irqsave(&phba->hbalock, iflags);
6609         cq_event = __lpfc_sli4_cq_event_alloc(phba);
6610         spin_unlock_irqrestore(&phba->hbalock, iflags);
6611         return cq_event;
6612 }
6613
6614 /**
6615  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6616  * @phba: pointer to lpfc hba data structure.
6617  * @cq_event: pointer to the completion queue event to be freed.
6618  *
6619  * This routine is the lock free version of the API invoked to release a
6620  * completion-queue event back into the free pool.
6621  **/
6622 void
6623 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6624                              struct lpfc_cq_event *cq_event)
6625 {
6626         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6627 }
6628
6629 /**
6630  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6631  * @phba: pointer to lpfc hba data structure.
6632  * @cq_event: pointer to the completion queue event to be freed.
6633  *
6634  * This routine is the lock version of the API invoked to release a
6635  * completion-queue event back into the free pool.
6636  **/
6637 void
6638 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6639                            struct lpfc_cq_event *cq_event)
6640 {
6641         unsigned long iflags;
6642         spin_lock_irqsave(&phba->hbalock, iflags);
6643         __lpfc_sli4_cq_event_release(phba, cq_event);
6644         spin_unlock_irqrestore(&phba->hbalock, iflags);
6645 }
6646
6647 /**
6648  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6649  * @phba: pointer to lpfc hba data structure.
6650  *
6651  * This routine is to free all the pending completion-queue events to the
6652  * back into the free pool for device reset.
6653  **/
6654 static void
6655 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6656 {
6657         LIST_HEAD(cqelist);
6658         struct lpfc_cq_event *cqe;
6659         unsigned long iflags;
6660
6661         /* Retrieve all the pending WCQEs from pending WCQE lists */
6662         spin_lock_irqsave(&phba->hbalock, iflags);
6663         /* Pending FCP XRI abort events */
6664         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6665                          &cqelist);
6666         /* Pending ELS XRI abort events */
6667         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6668                          &cqelist);
6669         /* Pending asynnc events */
6670         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6671                          &cqelist);
6672         spin_unlock_irqrestore(&phba->hbalock, iflags);
6673
6674         while (!list_empty(&cqelist)) {
6675                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6676                 lpfc_sli4_cq_event_release(phba, cqe);
6677         }
6678 }
6679
6680 /**
6681  * lpfc_pci_function_reset - Reset pci function.
6682  * @phba: pointer to lpfc hba data structure.
6683  *
6684  * This routine is invoked to request a PCI function reset. It will destroys
6685  * all resources assigned to the PCI function which originates this request.
6686  *
6687  * Return codes
6688  *      0 - successful
6689  *      -ENOMEM - No availble memory
6690  *      -EIO - The mailbox failed to complete successfully.
6691  **/
6692 int
6693 lpfc_pci_function_reset(struct lpfc_hba *phba)
6694 {
6695         LPFC_MBOXQ_t *mboxq;
6696         uint32_t rc = 0, if_type;
6697         uint32_t shdr_status, shdr_add_status;
6698         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
6699         union lpfc_sli4_cfg_shdr *shdr;
6700         struct lpfc_register reg_data;
6701
6702         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6703         switch (if_type) {
6704         case LPFC_SLI_INTF_IF_TYPE_0:
6705                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6706                                                        GFP_KERNEL);
6707                 if (!mboxq) {
6708                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6709                                         "0494 Unable to allocate memory for "
6710                                         "issuing SLI_FUNCTION_RESET mailbox "
6711                                         "command\n");
6712                         return -ENOMEM;
6713                 }
6714
6715                 /* Setup PCI function reset mailbox-ioctl command */
6716                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6717                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6718                                  LPFC_SLI4_MBX_EMBED);
6719                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6720                 shdr = (union lpfc_sli4_cfg_shdr *)
6721                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6722                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6723                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6724                                          &shdr->response);
6725                 if (rc != MBX_TIMEOUT)
6726                         mempool_free(mboxq, phba->mbox_mem_pool);
6727                 if (shdr_status || shdr_add_status || rc) {
6728                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6729                                         "0495 SLI_FUNCTION_RESET mailbox "
6730                                         "failed with status x%x add_status x%x,"
6731                                         " mbx status x%x\n",
6732                                         shdr_status, shdr_add_status, rc);
6733                         rc = -ENXIO;
6734                 }
6735                 break;
6736         case LPFC_SLI_INTF_IF_TYPE_2:
6737                 for (num_resets = 0;
6738                      num_resets < MAX_IF_TYPE_2_RESETS;
6739                      num_resets++) {
6740                         reg_data.word0 = 0;
6741                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
6742                                LPFC_SLIPORT_LITTLE_ENDIAN);
6743                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
6744                                LPFC_SLIPORT_INIT_PORT);
6745                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
6746                                CTRLregaddr);
6747
6748                         /*
6749                          * Poll the Port Status Register and wait for RDY for
6750                          * up to 10 seconds.  If the port doesn't respond, treat
6751                          * it as an error.  If the port responds with RN, start
6752                          * the loop again.
6753                          */
6754                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
6755                                 reg_data.word0 =
6756                                         readl(phba->sli4_hba.u.if_type2.
6757                                               STATUSregaddr);
6758                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
6759                                         break;
6760                                 if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
6761                                         reset_again++;
6762                                         break;
6763                                 }
6764                                 msleep(10);
6765                         }
6766
6767                         /*
6768                          * If the port responds to the init request with
6769                          * reset needed, delay for a bit and restart the loop.
6770                          */
6771                         if (reset_again) {
6772                                 msleep(10);
6773                                 reset_again = 0;
6774                                 continue;
6775                         }
6776
6777                         /* Detect any port errors. */
6778                         reg_data.word0 = readl(phba->sli4_hba.u.if_type2.
6779                                                STATUSregaddr);
6780                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
6781                             (rdy_chk >= 1000)) {
6782                                 phba->work_status[0] = readl(
6783                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
6784                                 phba->work_status[1] = readl(
6785                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
6786                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6787                                         "2890 Port Error Detected "
6788                                         "during Port Reset: "
6789                                         "port status reg 0x%x, "
6790                                         "error 1=0x%x, error 2=0x%x\n",
6791                                         reg_data.word0,
6792                                         phba->work_status[0],
6793                                         phba->work_status[1]);
6794                                 rc = -ENODEV;
6795                         }
6796
6797                         /*
6798                          * Terminate the outer loop provided the Port indicated
6799                          * ready within 10 seconds.
6800                          */
6801                         if (rdy_chk < 1000)
6802                                 break;
6803                 }
6804                 break;
6805         case LPFC_SLI_INTF_IF_TYPE_1:
6806         default:
6807                 break;
6808         }
6809
6810         /* Catch the not-ready port failure after a port reset. */
6811         if (num_resets >= MAX_IF_TYPE_2_RESETS)
6812                 rc = -ENODEV;
6813
6814         return rc;
6815 }
6816
6817 /**
6818  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6819  * @phba: pointer to lpfc hba data structure.
6820  * @cnt: number of nop mailbox commands to send.
6821  *
6822  * This routine is invoked to send a number @cnt of NOP mailbox command and
6823  * wait for each command to complete.
6824  *
6825  * Return: the number of NOP mailbox command completed.
6826  **/
6827 static int
6828 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
6829 {
6830         LPFC_MBOXQ_t *mboxq;
6831         int length, cmdsent;
6832         uint32_t mbox_tmo;
6833         uint32_t rc = 0;
6834         uint32_t shdr_status, shdr_add_status;
6835         union lpfc_sli4_cfg_shdr *shdr;
6836
6837         if (cnt == 0) {
6838                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6839                                 "2518 Requested to send 0 NOP mailbox cmd\n");
6840                 return cnt;
6841         }
6842
6843         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6844         if (!mboxq) {
6845                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6846                                 "2519 Unable to allocate memory for issuing "
6847                                 "NOP mailbox command\n");
6848                 return 0;
6849         }
6850
6851         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6852         length = (sizeof(struct lpfc_mbx_nop) -
6853                   sizeof(struct lpfc_sli4_cfg_mhdr));
6854         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6855                          LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
6856
6857         mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6858         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
6859                 if (!phba->sli4_hba.intr_enable)
6860                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6861                 else
6862                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
6863                 if (rc == MBX_TIMEOUT)
6864                         break;
6865                 /* Check return status */
6866                 shdr = (union lpfc_sli4_cfg_shdr *)
6867                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6868                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6869                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6870                                          &shdr->response);
6871                 if (shdr_status || shdr_add_status || rc) {
6872                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6873                                         "2520 NOP mailbox command failed "
6874                                         "status x%x add_status x%x mbx "
6875                                         "status x%x\n", shdr_status,
6876                                         shdr_add_status, rc);
6877                         break;
6878                 }
6879         }
6880
6881         if (rc != MBX_TIMEOUT)
6882                 mempool_free(mboxq, phba->mbox_mem_pool);
6883
6884         return cmdsent;
6885 }
6886
6887 /**
6888  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6889  * @phba: pointer to lpfc hba data structure.
6890  *
6891  * This routine is invoked to set up the PCI device memory space for device
6892  * with SLI-4 interface spec.
6893  *
6894  * Return codes
6895  *      0 - successful
6896  *      other values - error
6897  **/
6898 static int
6899 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6900 {
6901         struct pci_dev *pdev;
6902         unsigned long bar0map_len, bar1map_len, bar2map_len;
6903         int error = -ENODEV;
6904         uint32_t if_type;
6905
6906         /* Obtain PCI device reference */
6907         if (!phba->pcidev)
6908                 return error;
6909         else
6910                 pdev = phba->pcidev;
6911
6912         /* Set the device DMA mask size */
6913         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6914          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6915                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6916                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6917                         return error;
6918                 }
6919         }
6920
6921         /*
6922          * The BARs and register set definitions and offset locations are
6923          * dependent on the if_type.
6924          */
6925         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
6926                                   &phba->sli4_hba.sli_intf.word0)) {
6927                 return error;
6928         }
6929
6930         /* There is no SLI3 failback for SLI4 devices. */
6931         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
6932             LPFC_SLI_INTF_VALID) {
6933                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6934                                 "2894 SLI_INTF reg contents invalid "
6935                                 "sli_intf reg 0x%x\n",
6936                                 phba->sli4_hba.sli_intf.word0);
6937                 return error;
6938         }
6939
6940         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6941         /*
6942          * Get the bus address of SLI4 device Bar regions and the
6943          * number of bytes required by each mapping. The mapping of the
6944          * particular PCI BARs regions is dependent on the type of
6945          * SLI4 device.
6946          */
6947         if (pci_resource_start(pdev, 0)) {
6948                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6949                 bar0map_len = pci_resource_len(pdev, 0);
6950
6951                 /*
6952                  * Map SLI4 PCI Config Space Register base to a kernel virtual
6953                  * addr
6954                  */
6955                 phba->sli4_hba.conf_regs_memmap_p =
6956                         ioremap(phba->pci_bar0_map, bar0map_len);
6957                 if (!phba->sli4_hba.conf_regs_memmap_p) {
6958                         dev_printk(KERN_ERR, &pdev->dev,
6959                                    "ioremap failed for SLI4 PCI config "
6960                                    "registers.\n");
6961                         goto out;
6962                 }
6963                 /* Set up BAR0 PCI config space register memory map */
6964                 lpfc_sli4_bar0_register_memmap(phba, if_type);
6965         } else {
6966                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
6967                 bar0map_len = pci_resource_len(pdev, 1);
6968                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
6969                         dev_printk(KERN_ERR, &pdev->dev,
6970                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
6971                         goto out;
6972                 }
6973                 phba->sli4_hba.conf_regs_memmap_p =
6974                                 ioremap(phba->pci_bar0_map, bar0map_len);
6975                 if (!phba->sli4_hba.conf_regs_memmap_p) {
6976                         dev_printk(KERN_ERR, &pdev->dev,
6977                                 "ioremap failed for SLI4 PCI config "
6978                                 "registers.\n");
6979                                 goto out;
6980                 }
6981                 lpfc_sli4_bar0_register_memmap(phba, if_type);
6982         }
6983
6984         if (pci_resource_start(pdev, 2)) {
6985                 /*
6986                  * Map SLI4 if type 0 HBA Control Register base to a kernel
6987                  * virtual address and setup the registers.
6988                  */
6989                 phba->pci_bar1_map = pci_resource_start(pdev, 2);
6990                 bar1map_len = pci_resource_len(pdev, 2);
6991                 phba->sli4_hba.ctrl_regs_memmap_p =
6992                                 ioremap(phba->pci_bar1_map, bar1map_len);
6993                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
6994                         dev_printk(KERN_ERR, &pdev->dev,
6995                            "ioremap failed for SLI4 HBA control registers.\n");
6996                         goto out_iounmap_conf;
6997                 }
6998                 lpfc_sli4_bar1_register_memmap(phba);
6999         }
7000
7001         if (pci_resource_start(pdev, 4)) {
7002                 /*
7003                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7004                  * virtual address and setup the registers.
7005                  */
7006                 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7007                 bar2map_len = pci_resource_len(pdev, 4);
7008                 phba->sli4_hba.drbl_regs_memmap_p =
7009                                 ioremap(phba->pci_bar2_map, bar2map_len);
7010                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7011                         dev_printk(KERN_ERR, &pdev->dev,
7012                            "ioremap failed for SLI4 HBA doorbell registers.\n");
7013                         goto out_iounmap_ctrl;
7014                 }
7015                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7016                 if (error)
7017                         goto out_iounmap_all;
7018         }
7019
7020         return 0;
7021
7022 out_iounmap_all:
7023         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7024 out_iounmap_ctrl:
7025         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7026 out_iounmap_conf:
7027         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7028 out:
7029         return error;
7030 }
7031
7032 /**
7033  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7034  * @phba: pointer to lpfc hba data structure.
7035  *
7036  * This routine is invoked to unset the PCI device memory space for device
7037  * with SLI-4 interface spec.
7038  **/
7039 static void
7040 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7041 {
7042         struct pci_dev *pdev;
7043
7044         /* Obtain PCI device reference */
7045         if (!phba->pcidev)
7046                 return;
7047         else
7048                 pdev = phba->pcidev;
7049
7050         /* Free coherent DMA memory allocated */
7051
7052         /* Unmap I/O memory space */
7053         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7054         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7055         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7056
7057         return;
7058 }
7059
7060 /**
7061  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7062  * @phba: pointer to lpfc hba data structure.
7063  *
7064  * This routine is invoked to enable the MSI-X interrupt vectors to device
7065  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7066  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7067  * invoked, enables either all or nothing, depending on the current
7068  * availability of PCI vector resources. The device driver is responsible
7069  * for calling the individual request_irq() to register each MSI-X vector
7070  * with a interrupt handler, which is done in this function. Note that
7071  * later when device is unloading, the driver should always call free_irq()
7072  * on all MSI-X vectors it has done request_irq() on before calling
7073  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7074  * will be left with MSI-X enabled and leaks its vectors.
7075  *
7076  * Return codes
7077  *   0 - successful
7078  *   other values - error
7079  **/
7080 static int
7081 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7082 {
7083         int rc, i;
7084         LPFC_MBOXQ_t *pmb;
7085
7086         /* Set up MSI-X multi-message vectors */
7087         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7088                 phba->msix_entries[i].entry = i;
7089
7090         /* Configure MSI-X capability structure */
7091         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7092                                 ARRAY_SIZE(phba->msix_entries));
7093         if (rc) {
7094                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7095                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
7096                 goto msi_fail_out;
7097         }
7098         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7099                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7100                                 "0477 MSI-X entry[%d]: vector=x%x "
7101                                 "message=%d\n", i,
7102                                 phba->msix_entries[i].vector,
7103                                 phba->msix_entries[i].entry);
7104         /*
7105          * Assign MSI-X vectors to interrupt handlers
7106          */
7107
7108         /* vector-0 is associated to slow-path handler */
7109         rc = request_irq(phba->msix_entries[0].vector,
7110                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7111                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
7112         if (rc) {
7113                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7114                                 "0421 MSI-X slow-path request_irq failed "
7115                                 "(%d)\n", rc);
7116                 goto msi_fail_out;
7117         }
7118
7119         /* vector-1 is associated to fast-path handler */
7120         rc = request_irq(phba->msix_entries[1].vector,
7121                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7122                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
7123
7124         if (rc) {
7125                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7126                                 "0429 MSI-X fast-path request_irq failed "
7127                                 "(%d)\n", rc);
7128                 goto irq_fail_out;
7129         }
7130
7131         /*
7132          * Configure HBA MSI-X attention conditions to messages
7133          */
7134         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7135
7136         if (!pmb) {
7137                 rc = -ENOMEM;
7138                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7139                                 "0474 Unable to allocate memory for issuing "
7140                                 "MBOX_CONFIG_MSI command\n");
7141                 goto mem_fail_out;
7142         }
7143         rc = lpfc_config_msi(phba, pmb);
7144         if (rc)
7145                 goto mbx_fail_out;
7146         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7147         if (rc != MBX_SUCCESS) {
7148                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7149                                 "0351 Config MSI mailbox command failed, "
7150                                 "mbxCmd x%x, mbxStatus x%x\n",
7151                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7152                 goto mbx_fail_out;
7153         }
7154
7155         /* Free memory allocated for mailbox command */
7156         mempool_free(pmb, phba->mbox_mem_pool);
7157         return rc;
7158
7159 mbx_fail_out:
7160         /* Free memory allocated for mailbox command */
7161         mempool_free(pmb, phba->mbox_mem_pool);
7162
7163 mem_fail_out:
7164         /* free the irq already requested */
7165         free_irq(phba->msix_entries[1].vector, phba);
7166
7167 irq_fail_out:
7168         /* free the irq already requested */
7169         free_irq(phba->msix_entries[0].vector, phba);
7170
7171 msi_fail_out:
7172         /* Unconfigure MSI-X capability structure */
7173         pci_disable_msix(phba->pcidev);
7174         return rc;
7175 }
7176
7177 /**
7178  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7179  * @phba: pointer to lpfc hba data structure.
7180  *
7181  * This routine is invoked to release the MSI-X vectors and then disable the
7182  * MSI-X interrupt mode to device with SLI-3 interface spec.
7183  **/
7184 static void
7185 lpfc_sli_disable_msix(struct lpfc_hba *phba)
7186 {
7187         int i;
7188
7189         /* Free up MSI-X multi-message vectors */
7190         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7191                 free_irq(phba->msix_entries[i].vector, phba);
7192         /* Disable MSI-X */
7193         pci_disable_msix(phba->pcidev);
7194
7195         return;
7196 }
7197
7198 /**
7199  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7200  * @phba: pointer to lpfc hba data structure.
7201  *
7202  * This routine is invoked to enable the MSI interrupt mode to device with
7203  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7204  * enable the MSI vector. The device driver is responsible for calling the
7205  * request_irq() to register MSI vector with a interrupt the handler, which
7206  * is done in this function.
7207  *
7208  * Return codes
7209  *      0 - successful
7210  *      other values - error
7211  */
7212 static int
7213 lpfc_sli_enable_msi(struct lpfc_hba *phba)
7214 {
7215         int rc;
7216
7217         rc = pci_enable_msi(phba->pcidev);
7218         if (!rc)
7219                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7220                                 "0462 PCI enable MSI mode success.\n");
7221         else {
7222                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7223                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
7224                 return rc;
7225         }
7226
7227         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7228                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7229         if (rc) {
7230                 pci_disable_msi(phba->pcidev);
7231                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7232                                 "0478 MSI request_irq failed (%d)\n", rc);
7233         }
7234         return rc;
7235 }
7236
7237 /**
7238  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7239  * @phba: pointer to lpfc hba data structure.
7240  *
7241  * This routine is invoked to disable the MSI interrupt mode to device with
7242  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7243  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7244  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7245  * its vector.
7246  */
7247 static void
7248 lpfc_sli_disable_msi(struct lpfc_hba *phba)
7249 {
7250         free_irq(phba->pcidev->irq, phba);
7251         pci_disable_msi(phba->pcidev);
7252         return;
7253 }
7254
7255 /**
7256  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7257  * @phba: pointer to lpfc hba data structure.
7258  *
7259  * This routine is invoked to enable device interrupt and associate driver's
7260  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7261  * spec. Depends on the interrupt mode configured to the driver, the driver
7262  * will try to fallback from the configured interrupt mode to an interrupt
7263  * mode which is supported by the platform, kernel, and device in the order
7264  * of:
7265  * MSI-X -> MSI -> IRQ.
7266  *
7267  * Return codes
7268  *   0 - successful
7269  *   other values - error
7270  **/
7271 static uint32_t
7272 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7273 {
7274         uint32_t intr_mode = LPFC_INTR_ERROR;
7275         int retval;
7276
7277         if (cfg_mode == 2) {
7278                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7279                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7280                 if (!retval) {
7281                         /* Now, try to enable MSI-X interrupt mode */
7282                         retval = lpfc_sli_enable_msix(phba);
7283                         if (!retval) {
7284                                 /* Indicate initialization to MSI-X mode */
7285                                 phba->intr_type = MSIX;
7286                                 intr_mode = 2;
7287                         }
7288                 }
7289         }
7290
7291         /* Fallback to MSI if MSI-X initialization failed */
7292         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7293                 retval = lpfc_sli_enable_msi(phba);
7294                 if (!retval) {
7295                         /* Indicate initialization to MSI mode */
7296                         phba->intr_type = MSI;
7297                         intr_mode = 1;
7298                 }
7299         }
7300
7301         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7302         if (phba->intr_type == NONE) {
7303                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7304                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7305                 if (!retval) {
7306                         /* Indicate initialization to INTx mode */
7307                         phba->intr_type = INTx;
7308                         intr_mode = 0;
7309                 }
7310         }
7311         return intr_mode;
7312 }
7313
7314 /**
7315  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7316  * @phba: pointer to lpfc hba data structure.
7317  *
7318  * This routine is invoked to disable device interrupt and disassociate the
7319  * driver's interrupt handler(s) from interrupt vector(s) to device with
7320  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7321  * release the interrupt vector(s) for the message signaled interrupt.
7322  **/
7323 static void
7324 lpfc_sli_disable_intr(struct lpfc_hba *phba)
7325 {
7326         /* Disable the currently initialized interrupt mode */
7327         if (phba->intr_type == MSIX)
7328                 lpfc_sli_disable_msix(phba);
7329         else if (phba->intr_type == MSI)
7330                 lpfc_sli_disable_msi(phba);
7331         else if (phba->intr_type == INTx)
7332                 free_irq(phba->pcidev->irq, phba);
7333
7334         /* Reset interrupt management states */
7335         phba->intr_type = NONE;
7336         phba->sli.slistat.sli_intr = 0;
7337
7338         return;
7339 }
7340
7341 /**
7342  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7343  * @phba: pointer to lpfc hba data structure.
7344  *
7345  * This routine is invoked to enable the MSI-X interrupt vectors to device
7346  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7347  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7348  * enables either all or nothing, depending on the current availability of
7349  * PCI vector resources. The device driver is responsible for calling the
7350  * individual request_irq() to register each MSI-X vector with a interrupt
7351  * handler, which is done in this function. Note that later when device is
7352  * unloading, the driver should always call free_irq() on all MSI-X vectors
7353  * it has done request_irq() on before calling pci_disable_msix(). Failure
7354  * to do so results in a BUG_ON() and a device will be left with MSI-X
7355  * enabled and leaks its vectors.
7356  *
7357  * Return codes
7358  * 0 - successful
7359  * other values - error
7360  **/
7361 static int
7362 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7363 {
7364         int vectors, rc, index;
7365
7366         /* Set up MSI-X multi-message vectors */
7367         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7368                 phba->sli4_hba.msix_entries[index].entry = index;
7369
7370         /* Configure MSI-X capability structure */
7371         vectors = phba->sli4_hba.cfg_eqn;
7372 enable_msix_vectors:
7373         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
7374                              vectors);
7375         if (rc > 1) {
7376                 vectors = rc;
7377                 goto enable_msix_vectors;
7378         } else if (rc) {
7379                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7380                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
7381                 goto msi_fail_out;
7382         }
7383
7384         /* Log MSI-X vector assignment */
7385         for (index = 0; index < vectors; index++)
7386                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7387                                 "0489 MSI-X entry[%d]: vector=x%x "
7388                                 "message=%d\n", index,
7389                                 phba->sli4_hba.msix_entries[index].vector,
7390                                 phba->sli4_hba.msix_entries[index].entry);
7391         /*
7392          * Assign MSI-X vectors to interrupt handlers
7393          */
7394
7395         /* The first vector must associated to slow-path handler for MQ */
7396         rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7397                          &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7398                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
7399         if (rc) {
7400                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7401                                 "0485 MSI-X slow-path request_irq failed "
7402                                 "(%d)\n", rc);
7403                 goto msi_fail_out;
7404         }
7405
7406         /* The rest of the vector(s) are associated to fast-path handler(s) */
7407         for (index = 1; index < vectors; index++) {
7408                 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7409                 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7410                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7411                                  &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7412                                  LPFC_FP_DRIVER_HANDLER_NAME,
7413                                  &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7414                 if (rc) {
7415                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7416                                         "0486 MSI-X fast-path (%d) "
7417                                         "request_irq failed (%d)\n", index, rc);
7418                         goto cfg_fail_out;
7419                 }
7420         }
7421         phba->sli4_hba.msix_vec_nr = vectors;
7422
7423         return rc;
7424
7425 cfg_fail_out:
7426         /* free the irq already requested */
7427         for (--index; index >= 1; index--)
7428                 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7429                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7430
7431         /* free the irq already requested */
7432         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7433
7434 msi_fail_out:
7435         /* Unconfigure MSI-X capability structure */
7436         pci_disable_msix(phba->pcidev);
7437         return rc;
7438 }
7439
7440 /**
7441  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7442  * @phba: pointer to lpfc hba data structure.
7443  *
7444  * This routine is invoked to release the MSI-X vectors and then disable the
7445  * MSI-X interrupt mode to device with SLI-4 interface spec.
7446  **/
7447 static void
7448 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7449 {
7450         int index;
7451
7452         /* Free up MSI-X multi-message vectors */
7453         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7454
7455         for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7456                 free_irq(phba->sli4_hba.msix_entries[index].vector,
7457                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7458
7459         /* Disable MSI-X */
7460         pci_disable_msix(phba->pcidev);
7461
7462         return;
7463 }
7464
7465 /**
7466  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7467  * @phba: pointer to lpfc hba data structure.
7468  *
7469  * This routine is invoked to enable the MSI interrupt mode to device with
7470  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7471  * to enable the MSI vector. The device driver is responsible for calling
7472  * the request_irq() to register MSI vector with a interrupt the handler,
7473  * which is done in this function.
7474  *
7475  * Return codes
7476  *      0 - successful
7477  *      other values - error
7478  **/
7479 static int
7480 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7481 {
7482         int rc, index;
7483
7484         rc = pci_enable_msi(phba->pcidev);
7485         if (!rc)
7486                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7487                                 "0487 PCI enable MSI mode success.\n");
7488         else {
7489                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7490                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
7491                 return rc;
7492         }
7493
7494         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7495                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7496         if (rc) {
7497                 pci_disable_msi(phba->pcidev);
7498                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7499                                 "0490 MSI request_irq failed (%d)\n", rc);
7500                 return rc;
7501         }
7502
7503         for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7504                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7505                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7506         }
7507
7508         return 0;
7509 }
7510
7511 /**
7512  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7513  * @phba: pointer to lpfc hba data structure.
7514  *
7515  * This routine is invoked to disable the MSI interrupt mode to device with
7516  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7517  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7518  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7519  * its vector.
7520  **/
7521 static void
7522 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7523 {
7524         free_irq(phba->pcidev->irq, phba);
7525         pci_disable_msi(phba->pcidev);
7526         return;
7527 }
7528
7529 /**
7530  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7531  * @phba: pointer to lpfc hba data structure.
7532  *
7533  * This routine is invoked to enable device interrupt and associate driver's
7534  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7535  * interface spec. Depends on the interrupt mode configured to the driver,
7536  * the driver will try to fallback from the configured interrupt mode to an
7537  * interrupt mode which is supported by the platform, kernel, and device in
7538  * the order of:
7539  * MSI-X -> MSI -> IRQ.
7540  *
7541  * Return codes
7542  *      0 - successful
7543  *      other values - error
7544  **/
7545 static uint32_t
7546 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7547 {
7548         uint32_t intr_mode = LPFC_INTR_ERROR;
7549         int retval, index;
7550
7551         if (cfg_mode == 2) {
7552                 /* Preparation before conf_msi mbox cmd */
7553                 retval = 0;
7554                 if (!retval) {
7555                         /* Now, try to enable MSI-X interrupt mode */
7556                         retval = lpfc_sli4_enable_msix(phba);
7557                         if (!retval) {
7558                                 /* Indicate initialization to MSI-X mode */
7559                                 phba->intr_type = MSIX;
7560                                 intr_mode = 2;
7561                         }
7562                 }
7563         }
7564
7565         /* Fallback to MSI if MSI-X initialization failed */
7566         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7567                 retval = lpfc_sli4_enable_msi(phba);
7568                 if (!retval) {
7569                         /* Indicate initialization to MSI mode */
7570                         phba->intr_type = MSI;
7571                         intr_mode = 1;
7572                 }
7573         }
7574
7575         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7576         if (phba->intr_type == NONE) {
7577                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7578                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7579                 if (!retval) {
7580                         /* Indicate initialization to INTx mode */
7581                         phba->intr_type = INTx;
7582                         intr_mode = 0;
7583                         for (index = 0; index < phba->cfg_fcp_eq_count;
7584                              index++) {
7585                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7586                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7587                         }
7588                 }
7589         }
7590         return intr_mode;
7591 }
7592
7593 /**
7594  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7595  * @phba: pointer to lpfc hba data structure.
7596  *
7597  * This routine is invoked to disable device interrupt and disassociate
7598  * the driver's interrupt handler(s) from interrupt vector(s) to device
7599  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7600  * will release the interrupt vector(s) for the message signaled interrupt.
7601  **/
7602 static void
7603 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7604 {
7605         /* Disable the currently initialized interrupt mode */
7606         if (phba->intr_type == MSIX)
7607                 lpfc_sli4_disable_msix(phba);
7608         else if (phba->intr_type == MSI)
7609                 lpfc_sli4_disable_msi(phba);
7610         else if (phba->intr_type == INTx)
7611                 free_irq(phba->pcidev->irq, phba);
7612
7613         /* Reset interrupt management states */
7614         phba->intr_type = NONE;
7615         phba->sli.slistat.sli_intr = 0;
7616
7617         return;
7618 }
7619
7620 /**
7621  * lpfc_unset_hba - Unset SLI3 hba device initialization
7622  * @phba: pointer to lpfc hba data structure.
7623  *
7624  * This routine is invoked to unset the HBA device initialization steps to
7625  * a device with SLI-3 interface spec.
7626  **/
7627 static void
7628 lpfc_unset_hba(struct lpfc_hba *phba)
7629 {
7630         struct lpfc_vport *vport = phba->pport;
7631         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7632
7633         spin_lock_irq(shost->host_lock);
7634         vport->load_flag |= FC_UNLOADING;
7635         spin_unlock_irq(shost->host_lock);
7636
7637         lpfc_stop_hba_timers(phba);
7638
7639         phba->pport->work_port_events = 0;
7640
7641         lpfc_sli_hba_down(phba);
7642
7643         lpfc_sli_brdrestart(phba);
7644
7645         lpfc_sli_disable_intr(phba);
7646
7647         return;
7648 }
7649
7650 /**
7651  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7652  * @phba: pointer to lpfc hba data structure.
7653  *
7654  * This routine is invoked to unset the HBA device initialization steps to
7655  * a device with SLI-4 interface spec.
7656  **/
7657 static void
7658 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7659 {
7660         struct lpfc_vport *vport = phba->pport;
7661         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7662
7663         spin_lock_irq(shost->host_lock);
7664         vport->load_flag |= FC_UNLOADING;
7665         spin_unlock_irq(shost->host_lock);
7666
7667         phba->pport->work_port_events = 0;
7668
7669         /* Stop the SLI4 device port */
7670         lpfc_stop_port(phba);
7671
7672         lpfc_sli4_disable_intr(phba);
7673
7674         /* Reset SLI4 HBA FCoE function */
7675         lpfc_pci_function_reset(phba);
7676
7677         return;
7678 }
7679
7680 /**
7681  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7682  * @phba: Pointer to HBA context object.
7683  *
7684  * This function is called in the SLI4 code path to wait for completion
7685  * of device's XRIs exchange busy. It will check the XRI exchange busy
7686  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7687  * that, it will check the XRI exchange busy on outstanding FCP and ELS
7688  * I/Os every 30 seconds, log error message, and wait forever. Only when
7689  * all XRI exchange busy complete, the driver unload shall proceed with
7690  * invoking the function reset ioctl mailbox command to the CNA and the
7691  * the rest of the driver unload resource release.
7692  **/
7693 static void
7694 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
7695 {
7696         int wait_time = 0;
7697         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7698         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7699
7700         while (!fcp_xri_cmpl || !els_xri_cmpl) {
7701                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
7702                         if (!fcp_xri_cmpl)
7703                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7704                                                 "2877 FCP XRI exchange busy "
7705                                                 "wait time: %d seconds.\n",
7706                                                 wait_time/1000);
7707                         if (!els_xri_cmpl)
7708                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7709                                                 "2878 ELS XRI exchange busy "
7710                                                 "wait time: %d seconds.\n",
7711                                                 wait_time/1000);
7712                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
7713                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
7714                 } else {
7715                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
7716                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
7717                 }
7718                 fcp_xri_cmpl =
7719                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7720                 els_xri_cmpl =
7721                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7722         }
7723 }
7724
7725 /**
7726  * lpfc_sli4_hba_unset - Unset the fcoe hba
7727  * @phba: Pointer to HBA context object.
7728  *
7729  * This function is called in the SLI4 code path to reset the HBA's FCoE
7730  * function. The caller is not required to hold any lock. This routine
7731  * issues PCI function reset mailbox command to reset the FCoE function.
7732  * At the end of the function, it calls lpfc_hba_down_post function to
7733  * free any pending commands.
7734  **/
7735 static void
7736 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7737 {
7738         int wait_cnt = 0;
7739         LPFC_MBOXQ_t *mboxq;
7740
7741         lpfc_stop_hba_timers(phba);
7742         phba->sli4_hba.intr_enable = 0;
7743
7744         /*
7745          * Gracefully wait out the potential current outstanding asynchronous
7746          * mailbox command.
7747          */
7748
7749         /* First, block any pending async mailbox command from posted */
7750         spin_lock_irq(&phba->hbalock);
7751         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7752         spin_unlock_irq(&phba->hbalock);
7753         /* Now, trying to wait it out if we can */
7754         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7755                 msleep(10);
7756                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
7757                         break;
7758         }
7759         /* Forcefully release the outstanding mailbox command if timed out */
7760         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7761                 spin_lock_irq(&phba->hbalock);
7762                 mboxq = phba->sli.mbox_active;
7763                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7764                 __lpfc_mbox_cmpl_put(phba, mboxq);
7765                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7766                 phba->sli.mbox_active = NULL;
7767                 spin_unlock_irq(&phba->hbalock);
7768         }
7769
7770         /* Abort all iocbs associated with the hba */
7771         lpfc_sli_hba_iocb_abort(phba);
7772
7773         /* Wait for completion of device XRI exchange busy */
7774         lpfc_sli4_xri_exchange_busy_wait(phba);
7775
7776         /* Disable PCI subsystem interrupt */
7777         lpfc_sli4_disable_intr(phba);
7778
7779         /* Stop kthread signal shall trigger work_done one more time */
7780         kthread_stop(phba->worker_thread);
7781
7782         /* Reset SLI4 HBA FCoE function */
7783         lpfc_pci_function_reset(phba);
7784
7785         /* Stop the SLI4 device port */
7786         phba->pport->work_port_events = 0;
7787 }
7788
7789  /**
7790  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7791  * @phba: Pointer to HBA context object.
7792  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7793  *
7794  * This function is called in the SLI4 code path to read the port's
7795  * sli4 capabilities.
7796  *
7797  * This function may be be called from any context that can block-wait
7798  * for the completion.  The expectation is that this routine is called
7799  * typically from probe_one or from the online routine.
7800  **/
7801 int
7802 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7803 {
7804         int rc;
7805         struct lpfc_mqe *mqe;
7806         struct lpfc_pc_sli4_params *sli4_params;
7807         uint32_t mbox_tmo;
7808
7809         rc = 0;
7810         mqe = &mboxq->u.mqe;
7811
7812         /* Read the port's SLI4 Parameters port capabilities */
7813         lpfc_sli4_params(mboxq);
7814         if (!phba->sli4_hba.intr_enable)
7815                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7816         else {
7817                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
7818                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7819         }
7820
7821         if (unlikely(rc))
7822                 return 1;
7823
7824         sli4_params = &phba->sli4_hba.pc_sli4_params;
7825         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
7826         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
7827         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
7828         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
7829                                              &mqe->un.sli4_params);
7830         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
7831                                              &mqe->un.sli4_params);
7832         sli4_params->proto_types = mqe->un.sli4_params.word3;
7833         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
7834         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
7835         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
7836         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
7837         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
7838         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
7839         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
7840         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
7841         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
7842         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
7843         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
7844         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
7845         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
7846         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
7847         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
7848         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
7849         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
7850         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
7851         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
7852         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
7853         return rc;
7854 }
7855
7856 /**
7857  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7858  * @pdev: pointer to PCI device
7859  * @pid: pointer to PCI device identifier
7860  *
7861  * This routine is to be called to attach a device with SLI-3 interface spec
7862  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7863  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7864  * information of the device and driver to see if the driver state that it can
7865  * support this kind of device. If the match is successful, the driver core
7866  * invokes this routine. If this routine determines it can claim the HBA, it
7867  * does all the initialization that it needs to do to handle the HBA properly.
7868  *
7869  * Return code
7870  *      0 - driver can claim the device
7871  *      negative value - driver can not claim the device
7872  **/
7873 static int __devinit
7874 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
7875 {
7876         struct lpfc_hba   *phba;
7877         struct lpfc_vport *vport = NULL;
7878         struct Scsi_Host  *shost = NULL;
7879         int error;
7880         uint32_t cfg_mode, intr_mode;
7881
7882         /* Allocate memory for HBA structure */
7883         phba = lpfc_hba_alloc(pdev);
7884         if (!phba)
7885                 return -ENOMEM;
7886
7887         /* Perform generic PCI device enabling operation */
7888         error = lpfc_enable_pci_dev(phba);
7889         if (error) {
7890                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7891                                 "1401 Failed to enable pci device.\n");
7892                 goto out_free_phba;
7893         }
7894
7895         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7896         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
7897         if (error)
7898                 goto out_disable_pci_dev;
7899
7900         /* Set up SLI-3 specific device PCI memory space */
7901         error = lpfc_sli_pci_mem_setup(phba);
7902         if (error) {
7903                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7904                                 "1402 Failed to set up pci memory space.\n");
7905                 goto out_disable_pci_dev;
7906         }
7907
7908         /* Set up phase-1 common device driver resources */
7909         error = lpfc_setup_driver_resource_phase1(phba);
7910         if (error) {
7911                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7912                                 "1403 Failed to set up driver resource.\n");
7913                 goto out_unset_pci_mem_s3;
7914         }
7915
7916         /* Set up SLI-3 specific device driver resources */
7917         error = lpfc_sli_driver_resource_setup(phba);
7918         if (error) {
7919                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7920                                 "1404 Failed to set up driver resource.\n");
7921                 goto out_unset_pci_mem_s3;
7922         }
7923
7924         /* Initialize and populate the iocb list per host */
7925         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
7926         if (error) {
7927                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7928                                 "1405 Failed to initialize iocb list.\n");
7929                 goto out_unset_driver_resource_s3;
7930         }
7931
7932         /* Set up common device driver resources */
7933         error = lpfc_setup_driver_resource_phase2(phba);
7934         if (error) {
7935                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7936                                 "1406 Failed to set up driver resource.\n");
7937                 goto out_free_iocb_list;
7938         }
7939
7940         /* Create SCSI host to the physical port */
7941         error = lpfc_create_shost(phba);
7942         if (error) {
7943                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7944                                 "1407 Failed to create scsi host.\n");
7945                 goto out_unset_driver_resource;
7946         }
7947
7948         /* Configure sysfs attributes */
7949         vport = phba->pport;
7950         error = lpfc_alloc_sysfs_attr(vport);
7951         if (error) {
7952                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7953                                 "1476 Failed to allocate sysfs attr\n");
7954                 goto out_destroy_shost;
7955         }
7956
7957         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
7958         /* Now, trying to enable interrupt and bring up the device */
7959         cfg_mode = phba->cfg_use_msi;
7960         while (true) {
7961                 /* Put device to a known state before enabling interrupt */
7962                 lpfc_stop_port(phba);
7963                 /* Configure and enable interrupt */
7964                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
7965                 if (intr_mode == LPFC_INTR_ERROR) {
7966                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7967                                         "0431 Failed to enable interrupt.\n");
7968                         error = -ENODEV;
7969                         goto out_free_sysfs_attr;
7970                 }
7971                 /* SLI-3 HBA setup */
7972                 if (lpfc_sli_hba_setup(phba)) {
7973                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7974                                         "1477 Failed to set up hba\n");
7975                         error = -ENODEV;
7976                         goto out_remove_device;
7977                 }
7978
7979                 /* Wait 50ms for the interrupts of previous mailbox commands */
7980                 msleep(50);
7981                 /* Check active interrupts on message signaled interrupts */
7982                 if (intr_mode == 0 ||
7983                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
7984                         /* Log the current active interrupt mode */
7985                         phba->intr_mode = intr_mode;
7986                         lpfc_log_intr_mode(phba, intr_mode);
7987                         break;
7988                 } else {
7989                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7990                                         "0447 Configure interrupt mode (%d) "
7991                                         "failed active interrupt test.\n",
7992                                         intr_mode);
7993                         /* Disable the current interrupt mode */
7994                         lpfc_sli_disable_intr(phba);
7995                         /* Try next level of interrupt mode */
7996                         cfg_mode = --intr_mode;
7997                 }
7998         }
7999
8000         /* Perform post initialization setup */
8001         lpfc_post_init_setup(phba);
8002
8003         /* Check if there are static vports to be created. */
8004         lpfc_create_static_vport(phba);
8005
8006         return 0;
8007
8008 out_remove_device:
8009         lpfc_unset_hba(phba);
8010 out_free_sysfs_attr:
8011         lpfc_free_sysfs_attr(vport);
8012 out_destroy_shost:
8013         lpfc_destroy_shost(phba);
8014 out_unset_driver_resource:
8015         lpfc_unset_driver_resource_phase2(phba);
8016 out_free_iocb_list:
8017         lpfc_free_iocb_list(phba);
8018 out_unset_driver_resource_s3:
8019         lpfc_sli_driver_resource_unset(phba);
8020 out_unset_pci_mem_s3:
8021         lpfc_sli_pci_mem_unset(phba);
8022 out_disable_pci_dev:
8023         lpfc_disable_pci_dev(phba);
8024         if (shost)
8025                 scsi_host_put(shost);
8026 out_free_phba:
8027         lpfc_hba_free(phba);
8028         return error;
8029 }
8030
8031 /**
8032  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8033  * @pdev: pointer to PCI device
8034  *
8035  * This routine is to be called to disattach a device with SLI-3 interface
8036  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8037  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8038  * device to be removed from the PCI subsystem properly.
8039  **/
8040 static void __devexit
8041 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8042 {
8043         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
8044         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8045         struct lpfc_vport **vports;
8046         struct lpfc_hba   *phba = vport->phba;
8047         int i;
8048         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8049
8050         spin_lock_irq(&phba->hbalock);
8051         vport->load_flag |= FC_UNLOADING;
8052         spin_unlock_irq(&phba->hbalock);
8053
8054         lpfc_free_sysfs_attr(vport);
8055
8056         /* Release all the vports against this physical port */
8057         vports = lpfc_create_vport_work_array(phba);
8058         if (vports != NULL)
8059                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8060                         fc_vport_terminate(vports[i]->fc_vport);
8061         lpfc_destroy_vport_work_array(phba, vports);
8062
8063         /* Remove FC host and then SCSI host with the physical port */
8064         fc_remove_host(shost);
8065         scsi_remove_host(shost);
8066         lpfc_cleanup(vport);
8067
8068         /*
8069          * Bring down the SLI Layer. This step disable all interrupts,
8070          * clears the rings, discards all mailbox commands, and resets
8071          * the HBA.
8072          */
8073
8074         /* HBA interrupt will be disabled after this call */
8075         lpfc_sli_hba_down(phba);
8076         /* Stop kthread signal shall trigger work_done one more time */
8077         kthread_stop(phba->worker_thread);
8078         /* Final cleanup of txcmplq and reset the HBA */
8079         lpfc_sli_brdrestart(phba);
8080
8081         lpfc_stop_hba_timers(phba);
8082         spin_lock_irq(&phba->hbalock);
8083         list_del_init(&vport->listentry);
8084         spin_unlock_irq(&phba->hbalock);
8085
8086         lpfc_debugfs_terminate(vport);
8087
8088         /* Disable interrupt */
8089         lpfc_sli_disable_intr(phba);
8090
8091         pci_set_drvdata(pdev, NULL);
8092         scsi_host_put(shost);
8093
8094         /*
8095          * Call scsi_free before mem_free since scsi bufs are released to their
8096          * corresponding pools here.
8097          */
8098         lpfc_scsi_free(phba);
8099         lpfc_mem_free_all(phba);
8100
8101         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8102                           phba->hbqslimp.virt, phba->hbqslimp.phys);
8103
8104         /* Free resources associated with SLI2 interface */
8105         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8106                           phba->slim2p.virt, phba->slim2p.phys);
8107
8108         /* unmap adapter SLIM and Control Registers */
8109         iounmap(phba->ctrl_regs_memmap_p);
8110         iounmap(phba->slim_memmap_p);
8111
8112         lpfc_hba_free(phba);
8113
8114         pci_release_selected_regions(pdev, bars);
8115         pci_disable_device(pdev);
8116 }
8117
8118 /**
8119  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8120  * @pdev: pointer to PCI device
8121  * @msg: power management message
8122  *
8123  * This routine is to be called from the kernel's PCI subsystem to support
8124  * system Power Management (PM) to device with SLI-3 interface spec. When
8125  * PM invokes this method, it quiesces the device by stopping the driver's
8126  * worker thread for the device, turning off device's interrupt and DMA,
8127  * and bring the device offline. Note that as the driver implements the
8128  * minimum PM requirements to a power-aware driver's PM support for the
8129  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8130  * to the suspend() method call will be treated as SUSPEND and the driver will
8131  * fully reinitialize its device during resume() method call, the driver will
8132  * set device to PCI_D3hot state in PCI config space instead of setting it
8133  * according to the @msg provided by the PM.
8134  *
8135  * Return code
8136  *      0 - driver suspended the device
8137  *      Error otherwise
8138  **/
8139 static int
8140 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8141 {
8142         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8143         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8144
8145         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8146                         "0473 PCI device Power Management suspend.\n");
8147
8148         /* Bring down the device */
8149         lpfc_offline_prep(phba);
8150         lpfc_offline(phba);
8151         kthread_stop(phba->worker_thread);
8152
8153         /* Disable interrupt from device */
8154         lpfc_sli_disable_intr(phba);
8155
8156         /* Save device state to PCI config space */
8157         pci_save_state(pdev);
8158         pci_set_power_state(pdev, PCI_D3hot);
8159
8160         return 0;
8161 }
8162
8163 /**
8164  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8165  * @pdev: pointer to PCI device
8166  *
8167  * This routine is to be called from the kernel's PCI subsystem to support
8168  * system Power Management (PM) to device with SLI-3 interface spec. When PM
8169  * invokes this method, it restores the device's PCI config space state and
8170  * fully reinitializes the device and brings it online. Note that as the
8171  * driver implements the minimum PM requirements to a power-aware driver's
8172  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8173  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8174  * driver will fully reinitialize its device during resume() method call,
8175  * the device will be set to PCI_D0 directly in PCI config space before
8176  * restoring the state.
8177  *
8178  * Return code
8179  *      0 - driver suspended the device
8180  *      Error otherwise
8181  **/
8182 static int
8183 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8184 {
8185         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8186         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8187         uint32_t intr_mode;
8188         int error;
8189
8190         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8191                         "0452 PCI device Power Management resume.\n");
8192
8193         /* Restore device state from PCI config space */
8194         pci_set_power_state(pdev, PCI_D0);
8195         pci_restore_state(pdev);
8196
8197         /*
8198          * As the new kernel behavior of pci_restore_state() API call clears
8199          * device saved_state flag, need to save the restored state again.
8200          */
8201         pci_save_state(pdev);
8202
8203         if (pdev->is_busmaster)
8204                 pci_set_master(pdev);
8205
8206         /* Startup the kernel thread for this host adapter. */
8207         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8208                                         "lpfc_worker_%d", phba->brd_no);
8209         if (IS_ERR(phba->worker_thread)) {
8210                 error = PTR_ERR(phba->worker_thread);
8211                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8212                                 "0434 PM resume failed to start worker "
8213                                 "thread: error=x%x.\n", error);
8214                 return error;
8215         }
8216
8217         /* Configure and enable interrupt */
8218         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8219         if (intr_mode == LPFC_INTR_ERROR) {
8220                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8221                                 "0430 PM resume Failed to enable interrupt\n");
8222                 return -EIO;
8223         } else
8224                 phba->intr_mode = intr_mode;
8225
8226         /* Restart HBA and bring it online */
8227         lpfc_sli_brdrestart(phba);
8228         lpfc_online(phba);
8229
8230         /* Log the current active interrupt mode */
8231         lpfc_log_intr_mode(phba, phba->intr_mode);
8232
8233         return 0;
8234 }
8235
8236 /**
8237  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8238  * @phba: pointer to lpfc hba data structure.
8239  *
8240  * This routine is called to prepare the SLI3 device for PCI slot recover. It
8241  * aborts all the outstanding SCSI I/Os to the pci device.
8242  **/
8243 static void
8244 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8245 {
8246         struct lpfc_sli *psli = &phba->sli;
8247         struct lpfc_sli_ring  *pring;
8248
8249         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8250                         "2723 PCI channel I/O abort preparing for recovery\n");
8251
8252         /*
8253          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8254          * and let the SCSI mid-layer to retry them to recover.
8255          */
8256         pring = &psli->ring[psli->fcp_ring];
8257         lpfc_sli_abort_iocb_ring(phba, pring);
8258 }
8259
8260 /**
8261  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8262  * @phba: pointer to lpfc hba data structure.
8263  *
8264  * This routine is called to prepare the SLI3 device for PCI slot reset. It
8265  * disables the device interrupt and pci device, and aborts the internal FCP
8266  * pending I/Os.
8267  **/
8268 static void
8269 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8270 {
8271         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8272                         "2710 PCI channel disable preparing for reset\n");
8273
8274         /* Block any management I/Os to the device */
8275         lpfc_block_mgmt_io(phba);
8276
8277         /* Block all SCSI devices' I/Os on the host */
8278         lpfc_scsi_dev_block(phba);
8279
8280         /* stop all timers */
8281         lpfc_stop_hba_timers(phba);
8282
8283         /* Disable interrupt and pci device */
8284         lpfc_sli_disable_intr(phba);
8285         pci_disable_device(phba->pcidev);
8286
8287         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8288         lpfc_sli_flush_fcp_rings(phba);
8289 }
8290
8291 /**
8292  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8293  * @phba: pointer to lpfc hba data structure.
8294  *
8295  * This routine is called to prepare the SLI3 device for PCI slot permanently
8296  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8297  * pending I/Os.
8298  **/
8299 static void
8300 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8301 {
8302         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8303                         "2711 PCI channel permanent disable for failure\n");
8304         /* Block all SCSI devices' I/Os on the host */
8305         lpfc_scsi_dev_block(phba);
8306
8307         /* stop all timers */
8308         lpfc_stop_hba_timers(phba);
8309
8310         /* Clean up all driver's outstanding SCSI I/Os */
8311         lpfc_sli_flush_fcp_rings(phba);
8312 }
8313
8314 /**
8315  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8316  * @pdev: pointer to PCI device.
8317  * @state: the current PCI connection state.
8318  *
8319  * This routine is called from the PCI subsystem for I/O error handling to
8320  * device with SLI-3 interface spec. This function is called by the PCI
8321  * subsystem after a PCI bus error affecting this device has been detected.
8322  * When this function is invoked, it will need to stop all the I/Os and
8323  * interrupt(s) to the device. Once that is done, it will return
8324  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8325  * as desired.
8326  *
8327  * Return codes
8328  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
8329  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8330  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8331  **/
8332 static pci_ers_result_t
8333 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8334 {
8335         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8336         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8337
8338         switch (state) {
8339         case pci_channel_io_normal:
8340                 /* Non-fatal error, prepare for recovery */
8341                 lpfc_sli_prep_dev_for_recover(phba);
8342                 return PCI_ERS_RESULT_CAN_RECOVER;
8343         case pci_channel_io_frozen:
8344                 /* Fatal error, prepare for slot reset */
8345                 lpfc_sli_prep_dev_for_reset(phba);
8346                 return PCI_ERS_RESULT_NEED_RESET;
8347         case pci_channel_io_perm_failure:
8348                 /* Permanent failure, prepare for device down */
8349                 lpfc_sli_prep_dev_for_perm_failure(phba);
8350                 return PCI_ERS_RESULT_DISCONNECT;
8351         default:
8352                 /* Unknown state, prepare and request slot reset */
8353                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8354                                 "0472 Unknown PCI error state: x%x\n", state);
8355                 lpfc_sli_prep_dev_for_reset(phba);
8356                 return PCI_ERS_RESULT_NEED_RESET;
8357         }
8358 }
8359
8360 /**
8361  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8362  * @pdev: pointer to PCI device.
8363  *
8364  * This routine is called from the PCI subsystem for error handling to
8365  * device with SLI-3 interface spec. This is called after PCI bus has been
8366  * reset to restart the PCI card from scratch, as if from a cold-boot.
8367  * During the PCI subsystem error recovery, after driver returns
8368  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8369  * recovery and then call this routine before calling the .resume method
8370  * to recover the device. This function will initialize the HBA device,
8371  * enable the interrupt, but it will just put the HBA to offline state
8372  * without passing any I/O traffic.
8373  *
8374  * Return codes
8375  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8376  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8377  */
8378 static pci_ers_result_t
8379 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8380 {
8381         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8382         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8383         struct lpfc_sli *psli = &phba->sli;
8384         uint32_t intr_mode;
8385
8386         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8387         if (pci_enable_device_mem(pdev)) {
8388                 printk(KERN_ERR "lpfc: Cannot re-enable "
8389                         "PCI device after reset.\n");
8390                 return PCI_ERS_RESULT_DISCONNECT;
8391         }
8392
8393         pci_restore_state(pdev);
8394
8395         /*
8396          * As the new kernel behavior of pci_restore_state() API call clears
8397          * device saved_state flag, need to save the restored state again.
8398          */
8399         pci_save_state(pdev);
8400
8401         if (pdev->is_busmaster)
8402                 pci_set_master(pdev);
8403
8404         spin_lock_irq(&phba->hbalock);
8405         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8406         spin_unlock_irq(&phba->hbalock);
8407
8408         /* Configure and enable interrupt */
8409         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8410         if (intr_mode == LPFC_INTR_ERROR) {
8411                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8412                                 "0427 Cannot re-enable interrupt after "
8413                                 "slot reset.\n");
8414                 return PCI_ERS_RESULT_DISCONNECT;
8415         } else
8416                 phba->intr_mode = intr_mode;
8417
8418         /* Take device offline, it will perform cleanup */
8419         lpfc_offline_prep(phba);
8420         lpfc_offline(phba);
8421         lpfc_sli_brdrestart(phba);
8422
8423         /* Log the current active interrupt mode */
8424         lpfc_log_intr_mode(phba, phba->intr_mode);
8425
8426         return PCI_ERS_RESULT_RECOVERED;
8427 }
8428
8429 /**
8430  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8431  * @pdev: pointer to PCI device
8432  *
8433  * This routine is called from the PCI subsystem for error handling to device
8434  * with SLI-3 interface spec. It is called when kernel error recovery tells
8435  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8436  * error recovery. After this call, traffic can start to flow from this device
8437  * again.
8438  */
8439 static void
8440 lpfc_io_resume_s3(struct pci_dev *pdev)
8441 {
8442         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8443         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8444
8445         /* Bring device online, it will be no-op for non-fatal error resume */
8446         lpfc_online(phba);
8447
8448         /* Clean up Advanced Error Reporting (AER) if needed */
8449         if (phba->hba_flag & HBA_AER_ENABLED)
8450                 pci_cleanup_aer_uncorrect_error_status(pdev);
8451 }
8452
8453 /**
8454  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8455  * @phba: pointer to lpfc hba data structure.
8456  *
8457  * returns the number of ELS/CT IOCBs to reserve
8458  **/
8459 int
8460 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8461 {
8462         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8463
8464         if (phba->sli_rev == LPFC_SLI_REV4) {
8465                 if (max_xri <= 100)
8466                         return 10;
8467                 else if (max_xri <= 256)
8468                         return 25;
8469                 else if (max_xri <= 512)
8470                         return 50;
8471                 else if (max_xri <= 1024)
8472                         return 100;
8473                 else
8474                         return 150;
8475         } else
8476                 return 0;
8477 }
8478
8479 /**
8480  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8481  * @pdev: pointer to PCI device
8482  * @pid: pointer to PCI device identifier
8483  *
8484  * This routine is called from the kernel's PCI subsystem to device with
8485  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8486  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8487  * information of the device and driver to see if the driver state that it
8488  * can support this kind of device. If the match is successful, the driver
8489  * core invokes this routine. If this routine determines it can claim the HBA,
8490  * it does all the initialization that it needs to do to handle the HBA
8491  * properly.
8492  *
8493  * Return code
8494  *      0 - driver can claim the device
8495  *      negative value - driver can not claim the device
8496  **/
8497 static int __devinit
8498 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8499 {
8500         struct lpfc_hba   *phba;
8501         struct lpfc_vport *vport = NULL;
8502         struct Scsi_Host  *shost = NULL;
8503         int error;
8504         uint32_t cfg_mode, intr_mode;
8505         int mcnt;
8506
8507         /* Allocate memory for HBA structure */
8508         phba = lpfc_hba_alloc(pdev);
8509         if (!phba)
8510                 return -ENOMEM;
8511
8512         /* Perform generic PCI device enabling operation */
8513         error = lpfc_enable_pci_dev(phba);
8514         if (error) {
8515                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8516                                 "1409 Failed to enable pci device.\n");
8517                 goto out_free_phba;
8518         }
8519
8520         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8521         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
8522         if (error)
8523                 goto out_disable_pci_dev;
8524
8525         /* Set up SLI-4 specific device PCI memory space */
8526         error = lpfc_sli4_pci_mem_setup(phba);
8527         if (error) {
8528                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8529                                 "1410 Failed to set up pci memory space.\n");
8530                 goto out_disable_pci_dev;
8531         }
8532
8533         /* Set up phase-1 common device driver resources */
8534         error = lpfc_setup_driver_resource_phase1(phba);
8535         if (error) {
8536                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8537                                 "1411 Failed to set up driver resource.\n");
8538                 goto out_unset_pci_mem_s4;
8539         }
8540
8541         /* Set up SLI-4 Specific device driver resources */
8542         error = lpfc_sli4_driver_resource_setup(phba);
8543         if (error) {
8544                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8545                                 "1412 Failed to set up driver resource.\n");
8546                 goto out_unset_pci_mem_s4;
8547         }
8548
8549         /* Initialize and populate the iocb list per host */
8550
8551         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8552                         "2821 initialize iocb list %d.\n",
8553                         phba->cfg_iocb_cnt*1024);
8554         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
8555
8556         if (error) {
8557                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8558                                 "1413 Failed to initialize iocb list.\n");
8559                 goto out_unset_driver_resource_s4;
8560         }
8561
8562         INIT_LIST_HEAD(&phba->active_rrq_list);
8563
8564         /* Set up common device driver resources */
8565         error = lpfc_setup_driver_resource_phase2(phba);
8566         if (error) {
8567                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8568                                 "1414 Failed to set up driver resource.\n");
8569                 goto out_free_iocb_list;
8570         }
8571
8572         /* Create SCSI host to the physical port */
8573         error = lpfc_create_shost(phba);
8574         if (error) {
8575                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8576                                 "1415 Failed to create scsi host.\n");
8577                 goto out_unset_driver_resource;
8578         }
8579
8580         /* Configure sysfs attributes */
8581         vport = phba->pport;
8582         error = lpfc_alloc_sysfs_attr(vport);
8583         if (error) {
8584                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8585                                 "1416 Failed to allocate sysfs attr\n");
8586                 goto out_destroy_shost;
8587         }
8588
8589         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8590         /* Now, trying to enable interrupt and bring up the device */
8591         cfg_mode = phba->cfg_use_msi;
8592         while (true) {
8593                 /* Put device to a known state before enabling interrupt */
8594                 lpfc_stop_port(phba);
8595                 /* Configure and enable interrupt */
8596                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
8597                 if (intr_mode == LPFC_INTR_ERROR) {
8598                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8599                                         "0426 Failed to enable interrupt.\n");
8600                         error = -ENODEV;
8601                         goto out_free_sysfs_attr;
8602                 }
8603                 /* Default to single FCP EQ for non-MSI-X */
8604                 if (phba->intr_type != MSIX)
8605                         phba->cfg_fcp_eq_count = 1;
8606                 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count)
8607                         phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
8608                 /* Set up SLI-4 HBA */
8609                 if (lpfc_sli4_hba_setup(phba)) {
8610                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8611                                         "1421 Failed to set up hba\n");
8612                         error = -ENODEV;
8613                         goto out_disable_intr;
8614                 }
8615
8616                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8617                 if (intr_mode != 0)
8618                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
8619                                                             LPFC_ACT_INTR_CNT);
8620
8621                 /* Check active interrupts received only for MSI/MSI-X */
8622                 if (intr_mode == 0 ||
8623                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
8624                         /* Log the current active interrupt mode */
8625                         phba->intr_mode = intr_mode;
8626                         lpfc_log_intr_mode(phba, intr_mode);
8627                         break;
8628                 }
8629                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8630                                 "0451 Configure interrupt mode (%d) "
8631                                 "failed active interrupt test.\n",
8632                                 intr_mode);
8633                 /* Unset the previous SLI-4 HBA setup. */
8634                 /*
8635                  * TODO:  Is this operation compatible with IF TYPE 2
8636                  * devices?  All port state is deleted and cleared.
8637                  */
8638                 lpfc_sli4_unset_hba(phba);
8639                 /* Try next level of interrupt mode */
8640                 cfg_mode = --intr_mode;
8641         }
8642
8643         /* Perform post initialization setup */
8644         lpfc_post_init_setup(phba);
8645
8646         /* Check if there are static vports to be created. */
8647         lpfc_create_static_vport(phba);
8648
8649         return 0;
8650
8651 out_disable_intr:
8652         lpfc_sli4_disable_intr(phba);
8653 out_free_sysfs_attr:
8654         lpfc_free_sysfs_attr(vport);
8655 out_destroy_shost:
8656         lpfc_destroy_shost(phba);
8657 out_unset_driver_resource:
8658         lpfc_unset_driver_resource_phase2(phba);
8659 out_free_iocb_list:
8660         lpfc_free_iocb_list(phba);
8661 out_unset_driver_resource_s4:
8662         lpfc_sli4_driver_resource_unset(phba);
8663 out_unset_pci_mem_s4:
8664         lpfc_sli4_pci_mem_unset(phba);
8665 out_disable_pci_dev:
8666         lpfc_disable_pci_dev(phba);
8667         if (shost)
8668                 scsi_host_put(shost);
8669 out_free_phba:
8670         lpfc_hba_free(phba);
8671         return error;
8672 }
8673
8674 /**
8675  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8676  * @pdev: pointer to PCI device
8677  *
8678  * This routine is called from the kernel's PCI subsystem to device with
8679  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8680  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8681  * device to be removed from the PCI subsystem properly.
8682  **/
8683 static void __devexit
8684 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
8685 {
8686         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8687         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8688         struct lpfc_vport **vports;
8689         struct lpfc_hba *phba = vport->phba;
8690         int i;
8691
8692         /* Mark the device unloading flag */
8693         spin_lock_irq(&phba->hbalock);
8694         vport->load_flag |= FC_UNLOADING;
8695         spin_unlock_irq(&phba->hbalock);
8696
8697         /* Free the HBA sysfs attributes */
8698         lpfc_free_sysfs_attr(vport);
8699
8700         /* Release all the vports against this physical port */
8701         vports = lpfc_create_vport_work_array(phba);
8702         if (vports != NULL)
8703                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8704                         fc_vport_terminate(vports[i]->fc_vport);
8705         lpfc_destroy_vport_work_array(phba, vports);
8706
8707         /* Remove FC host and then SCSI host with the physical port */
8708         fc_remove_host(shost);
8709         scsi_remove_host(shost);
8710
8711         /* Perform cleanup on the physical port */
8712         lpfc_cleanup(vport);
8713
8714         /*
8715          * Bring down the SLI Layer. This step disables all interrupts,
8716          * clears the rings, discards all mailbox commands, and resets
8717          * the HBA FCoE function.
8718          */
8719         lpfc_debugfs_terminate(vport);
8720         lpfc_sli4_hba_unset(phba);
8721
8722         spin_lock_irq(&phba->hbalock);
8723         list_del_init(&vport->listentry);
8724         spin_unlock_irq(&phba->hbalock);
8725
8726         /* Perform scsi free before driver resource_unset since scsi
8727          * buffers are released to their corresponding pools here.
8728          */
8729         lpfc_scsi_free(phba);
8730         lpfc_sli4_driver_resource_unset(phba);
8731
8732         /* Unmap adapter Control and Doorbell registers */
8733         lpfc_sli4_pci_mem_unset(phba);
8734
8735         /* Release PCI resources and disable device's PCI function */
8736         scsi_host_put(shost);
8737         lpfc_disable_pci_dev(phba);
8738
8739         /* Finally, free the driver's device data structure */
8740         lpfc_hba_free(phba);
8741
8742         return;
8743 }
8744
8745 /**
8746  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8747  * @pdev: pointer to PCI device
8748  * @msg: power management message
8749  *
8750  * This routine is called from the kernel's PCI subsystem to support system
8751  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8752  * this method, it quiesces the device by stopping the driver's worker
8753  * thread for the device, turning off device's interrupt and DMA, and bring
8754  * the device offline. Note that as the driver implements the minimum PM
8755  * requirements to a power-aware driver's PM support for suspend/resume -- all
8756  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8757  * method call will be treated as SUSPEND and the driver will fully
8758  * reinitialize its device during resume() method call, the driver will set
8759  * device to PCI_D3hot state in PCI config space instead of setting it
8760  * according to the @msg provided by the PM.
8761  *
8762  * Return code
8763  *      0 - driver suspended the device
8764  *      Error otherwise
8765  **/
8766 static int
8767 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
8768 {
8769         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8770         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8771
8772         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8773                         "2843 PCI device Power Management suspend.\n");
8774
8775         /* Bring down the device */
8776         lpfc_offline_prep(phba);
8777         lpfc_offline(phba);
8778         kthread_stop(phba->worker_thread);
8779
8780         /* Disable interrupt from device */
8781         lpfc_sli4_disable_intr(phba);
8782
8783         /* Save device state to PCI config space */
8784         pci_save_state(pdev);
8785         pci_set_power_state(pdev, PCI_D3hot);
8786
8787         return 0;
8788 }
8789
8790 /**
8791  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8792  * @pdev: pointer to PCI device
8793  *
8794  * This routine is called from the kernel's PCI subsystem to support system
8795  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8796  * this method, it restores the device's PCI config space state and fully
8797  * reinitializes the device and brings it online. Note that as the driver
8798  * implements the minimum PM requirements to a power-aware driver's PM for
8799  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8800  * to the suspend() method call will be treated as SUSPEND and the driver
8801  * will fully reinitialize its device during resume() method call, the device
8802  * will be set to PCI_D0 directly in PCI config space before restoring the
8803  * state.
8804  *
8805  * Return code
8806  *      0 - driver suspended the device
8807  *      Error otherwise
8808  **/
8809 static int
8810 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
8811 {
8812         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8813         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8814         uint32_t intr_mode;
8815         int error;
8816
8817         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8818                         "0292 PCI device Power Management resume.\n");
8819
8820         /* Restore device state from PCI config space */
8821         pci_set_power_state(pdev, PCI_D0);
8822         pci_restore_state(pdev);
8823
8824         /*
8825          * As the new kernel behavior of pci_restore_state() API call clears
8826          * device saved_state flag, need to save the restored state again.
8827          */
8828         pci_save_state(pdev);
8829
8830         if (pdev->is_busmaster)
8831                 pci_set_master(pdev);
8832
8833          /* Startup the kernel thread for this host adapter. */
8834         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8835                                         "lpfc_worker_%d", phba->brd_no);
8836         if (IS_ERR(phba->worker_thread)) {
8837                 error = PTR_ERR(phba->worker_thread);
8838                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8839                                 "0293 PM resume failed to start worker "
8840                                 "thread: error=x%x.\n", error);
8841                 return error;
8842         }
8843
8844         /* Configure and enable interrupt */
8845         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8846         if (intr_mode == LPFC_INTR_ERROR) {
8847                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8848                                 "0294 PM resume Failed to enable interrupt\n");
8849                 return -EIO;
8850         } else
8851                 phba->intr_mode = intr_mode;
8852
8853         /* Restart HBA and bring it online */
8854         lpfc_sli_brdrestart(phba);
8855         lpfc_online(phba);
8856
8857         /* Log the current active interrupt mode */
8858         lpfc_log_intr_mode(phba, phba->intr_mode);
8859
8860         return 0;
8861 }
8862
8863 /**
8864  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
8865  * @phba: pointer to lpfc hba data structure.
8866  *
8867  * This routine is called to prepare the SLI4 device for PCI slot recover. It
8868  * aborts all the outstanding SCSI I/Os to the pci device.
8869  **/
8870 static void
8871 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
8872 {
8873         struct lpfc_sli *psli = &phba->sli;
8874         struct lpfc_sli_ring  *pring;
8875
8876         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8877                         "2828 PCI channel I/O abort preparing for recovery\n");
8878         /*
8879          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8880          * and let the SCSI mid-layer to retry them to recover.
8881          */
8882         pring = &psli->ring[psli->fcp_ring];
8883         lpfc_sli_abort_iocb_ring(phba, pring);
8884 }
8885
8886 /**
8887  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
8888  * @phba: pointer to lpfc hba data structure.
8889  *
8890  * This routine is called to prepare the SLI4 device for PCI slot reset. It
8891  * disables the device interrupt and pci device, and aborts the internal FCP
8892  * pending I/Os.
8893  **/
8894 static void
8895 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
8896 {
8897         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8898                         "2826 PCI channel disable preparing for reset\n");
8899
8900         /* Block any management I/Os to the device */
8901         lpfc_block_mgmt_io(phba);
8902
8903         /* Block all SCSI devices' I/Os on the host */
8904         lpfc_scsi_dev_block(phba);
8905
8906         /* stop all timers */
8907         lpfc_stop_hba_timers(phba);
8908
8909         /* Disable interrupt and pci device */
8910         lpfc_sli4_disable_intr(phba);
8911         pci_disable_device(phba->pcidev);
8912
8913         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8914         lpfc_sli_flush_fcp_rings(phba);
8915 }
8916
8917 /**
8918  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
8919  * @phba: pointer to lpfc hba data structure.
8920  *
8921  * This routine is called to prepare the SLI4 device for PCI slot permanently
8922  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8923  * pending I/Os.
8924  **/
8925 static void
8926 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8927 {
8928         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8929                         "2827 PCI channel permanent disable for failure\n");
8930
8931         /* Block all SCSI devices' I/Os on the host */
8932         lpfc_scsi_dev_block(phba);
8933
8934         /* stop all timers */
8935         lpfc_stop_hba_timers(phba);
8936
8937         /* Clean up all driver's outstanding SCSI I/Os */
8938         lpfc_sli_flush_fcp_rings(phba);
8939 }
8940
8941 /**
8942  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8943  * @pdev: pointer to PCI device.
8944  * @state: the current PCI connection state.
8945  *
8946  * This routine is called from the PCI subsystem for error handling to device
8947  * with SLI-4 interface spec. This function is called by the PCI subsystem
8948  * after a PCI bus error affecting this device has been detected. When this
8949  * function is invoked, it will need to stop all the I/Os and interrupt(s)
8950  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
8951  * for the PCI subsystem to perform proper recovery as desired.
8952  *
8953  * Return codes
8954  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8955  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8956  **/
8957 static pci_ers_result_t
8958 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8959 {
8960         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8961         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8962
8963         switch (state) {
8964         case pci_channel_io_normal:
8965                 /* Non-fatal error, prepare for recovery */
8966                 lpfc_sli4_prep_dev_for_recover(phba);
8967                 return PCI_ERS_RESULT_CAN_RECOVER;
8968         case pci_channel_io_frozen:
8969                 /* Fatal error, prepare for slot reset */
8970                 lpfc_sli4_prep_dev_for_reset(phba);
8971                 return PCI_ERS_RESULT_NEED_RESET;
8972         case pci_channel_io_perm_failure:
8973                 /* Permanent failure, prepare for device down */
8974                 lpfc_sli4_prep_dev_for_perm_failure(phba);
8975                 return PCI_ERS_RESULT_DISCONNECT;
8976         default:
8977                 /* Unknown state, prepare and request slot reset */
8978                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8979                                 "2825 Unknown PCI error state: x%x\n", state);
8980                 lpfc_sli4_prep_dev_for_reset(phba);
8981                 return PCI_ERS_RESULT_NEED_RESET;
8982         }
8983 }
8984
8985 /**
8986  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8987  * @pdev: pointer to PCI device.
8988  *
8989  * This routine is called from the PCI subsystem for error handling to device
8990  * with SLI-4 interface spec. It is called after PCI bus has been reset to
8991  * restart the PCI card from scratch, as if from a cold-boot. During the
8992  * PCI subsystem error recovery, after the driver returns
8993  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8994  * recovery and then call this routine before calling the .resume method to
8995  * recover the device. This function will initialize the HBA device, enable
8996  * the interrupt, but it will just put the HBA to offline state without
8997  * passing any I/O traffic.
8998  *
8999  * Return codes
9000  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9001  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9002  */
9003 static pci_ers_result_t
9004 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
9005 {
9006         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9007         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9008         struct lpfc_sli *psli = &phba->sli;
9009         uint32_t intr_mode;
9010
9011         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9012         if (pci_enable_device_mem(pdev)) {
9013                 printk(KERN_ERR "lpfc: Cannot re-enable "
9014                         "PCI device after reset.\n");
9015                 return PCI_ERS_RESULT_DISCONNECT;
9016         }
9017
9018         pci_restore_state(pdev);
9019         if (pdev->is_busmaster)
9020                 pci_set_master(pdev);
9021
9022         spin_lock_irq(&phba->hbalock);
9023         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9024         spin_unlock_irq(&phba->hbalock);
9025
9026         /* Configure and enable interrupt */
9027         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9028         if (intr_mode == LPFC_INTR_ERROR) {
9029                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9030                                 "2824 Cannot re-enable interrupt after "
9031                                 "slot reset.\n");
9032                 return PCI_ERS_RESULT_DISCONNECT;
9033         } else
9034                 phba->intr_mode = intr_mode;
9035
9036         /* Log the current active interrupt mode */
9037         lpfc_log_intr_mode(phba, phba->intr_mode);
9038
9039         return PCI_ERS_RESULT_RECOVERED;
9040 }
9041
9042 /**
9043  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9044  * @pdev: pointer to PCI device
9045  *
9046  * This routine is called from the PCI subsystem for error handling to device
9047  * with SLI-4 interface spec. It is called when kernel error recovery tells
9048  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9049  * error recovery. After this call, traffic can start to flow from this device
9050  * again.
9051  **/
9052 static void
9053 lpfc_io_resume_s4(struct pci_dev *pdev)
9054 {
9055         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9056         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9057
9058         /*
9059          * In case of slot reset, as function reset is performed through
9060          * mailbox command which needs DMA to be enabled, this operation
9061          * has to be moved to the io resume phase. Taking device offline
9062          * will perform the necessary cleanup.
9063          */
9064         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9065                 /* Perform device reset */
9066                 lpfc_offline_prep(phba);
9067                 lpfc_offline(phba);
9068                 lpfc_sli_brdrestart(phba);
9069                 /* Bring the device back online */
9070                 lpfc_online(phba);
9071         }
9072
9073         /* Clean up Advanced Error Reporting (AER) if needed */
9074         if (phba->hba_flag & HBA_AER_ENABLED)
9075                 pci_cleanup_aer_uncorrect_error_status(pdev);
9076 }
9077
9078 /**
9079  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9080  * @pdev: pointer to PCI device
9081  * @pid: pointer to PCI device identifier
9082  *
9083  * This routine is to be registered to the kernel's PCI subsystem. When an
9084  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9085  * at PCI device-specific information of the device and driver to see if the
9086  * driver state that it can support this kind of device. If the match is
9087  * successful, the driver core invokes this routine. This routine dispatches
9088  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9089  * do all the initialization that it needs to do to handle the HBA device
9090  * properly.
9091  *
9092  * Return code
9093  *      0 - driver can claim the device
9094  *      negative value - driver can not claim the device
9095  **/
9096 static int __devinit
9097 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9098 {
9099         int rc;
9100         struct lpfc_sli_intf intf;
9101
9102         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
9103                 return -ENODEV;
9104
9105         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
9106             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
9107                 rc = lpfc_pci_probe_one_s4(pdev, pid);
9108         else
9109                 rc = lpfc_pci_probe_one_s3(pdev, pid);
9110
9111         return rc;
9112 }
9113
9114 /**
9115  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9116  * @pdev: pointer to PCI device
9117  *
9118  * This routine is to be registered to the kernel's PCI subsystem. When an
9119  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9120  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9121  * remove routine, which will perform all the necessary cleanup for the
9122  * device to be removed from the PCI subsystem properly.
9123  **/
9124 static void __devexit
9125 lpfc_pci_remove_one(struct pci_dev *pdev)
9126 {
9127         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9128         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9129
9130         switch (phba->pci_dev_grp) {
9131         case LPFC_PCI_DEV_LP:
9132                 lpfc_pci_remove_one_s3(pdev);
9133                 break;
9134         case LPFC_PCI_DEV_OC:
9135                 lpfc_pci_remove_one_s4(pdev);
9136                 break;
9137         default:
9138                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9139                                 "1424 Invalid PCI device group: 0x%x\n",
9140                                 phba->pci_dev_grp);
9141                 break;
9142         }
9143         return;
9144 }
9145
9146 /**
9147  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9148  * @pdev: pointer to PCI device
9149  * @msg: power management message
9150  *
9151  * This routine is to be registered to the kernel's PCI subsystem to support
9152  * system Power Management (PM). When PM invokes this method, it dispatches
9153  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9154  * suspend the device.
9155  *
9156  * Return code
9157  *      0 - driver suspended the device
9158  *      Error otherwise
9159  **/
9160 static int
9161 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9162 {
9163         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9164         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9165         int rc = -ENODEV;
9166
9167         switch (phba->pci_dev_grp) {
9168         case LPFC_PCI_DEV_LP:
9169                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9170                 break;
9171         case LPFC_PCI_DEV_OC:
9172                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9173                 break;
9174         default:
9175                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9176                                 "1425 Invalid PCI device group: 0x%x\n",
9177                                 phba->pci_dev_grp);
9178                 break;
9179         }
9180         return rc;
9181 }
9182
9183 /**
9184  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9185  * @pdev: pointer to PCI device
9186  *
9187  * This routine is to be registered to the kernel's PCI subsystem to support
9188  * system Power Management (PM). When PM invokes this method, it dispatches
9189  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9190  * resume the device.
9191  *
9192  * Return code
9193  *      0 - driver suspended the device
9194  *      Error otherwise
9195  **/
9196 static int
9197 lpfc_pci_resume_one(struct pci_dev *pdev)
9198 {
9199         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9200         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9201         int rc = -ENODEV;
9202
9203         switch (phba->pci_dev_grp) {
9204         case LPFC_PCI_DEV_LP:
9205                 rc = lpfc_pci_resume_one_s3(pdev);
9206                 break;
9207         case LPFC_PCI_DEV_OC:
9208                 rc = lpfc_pci_resume_one_s4(pdev);
9209                 break;
9210         default:
9211                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9212                                 "1426 Invalid PCI device group: 0x%x\n",
9213                                 phba->pci_dev_grp);
9214                 break;
9215         }
9216         return rc;
9217 }
9218
9219 /**
9220  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9221  * @pdev: pointer to PCI device.
9222  * @state: the current PCI connection state.
9223  *
9224  * This routine is registered to the PCI subsystem for error handling. This
9225  * function is called by the PCI subsystem after a PCI bus error affecting
9226  * this device has been detected. When this routine is invoked, it dispatches
9227  * the action to the proper SLI-3 or SLI-4 device error detected handling
9228  * routine, which will perform the proper error detected operation.
9229  *
9230  * Return codes
9231  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9232  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9233  **/
9234 static pci_ers_result_t
9235 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9236 {
9237         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9238         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9239         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9240
9241         switch (phba->pci_dev_grp) {
9242         case LPFC_PCI_DEV_LP:
9243                 rc = lpfc_io_error_detected_s3(pdev, state);
9244                 break;
9245         case LPFC_PCI_DEV_OC:
9246                 rc = lpfc_io_error_detected_s4(pdev, state);
9247                 break;
9248         default:
9249                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9250                                 "1427 Invalid PCI device group: 0x%x\n",
9251                                 phba->pci_dev_grp);
9252                 break;
9253         }
9254         return rc;
9255 }
9256
9257 /**
9258  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9259  * @pdev: pointer to PCI device.
9260  *
9261  * This routine is registered to the PCI subsystem for error handling. This
9262  * function is called after PCI bus has been reset to restart the PCI card
9263  * from scratch, as if from a cold-boot. When this routine is invoked, it
9264  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9265  * routine, which will perform the proper device reset.
9266  *
9267  * Return codes
9268  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9269  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9270  **/
9271 static pci_ers_result_t
9272 lpfc_io_slot_reset(struct pci_dev *pdev)
9273 {
9274         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9275         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9276         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9277
9278         switch (phba->pci_dev_grp) {
9279         case LPFC_PCI_DEV_LP:
9280                 rc = lpfc_io_slot_reset_s3(pdev);
9281                 break;
9282         case LPFC_PCI_DEV_OC:
9283                 rc = lpfc_io_slot_reset_s4(pdev);
9284                 break;
9285         default:
9286                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9287                                 "1428 Invalid PCI device group: 0x%x\n",
9288                                 phba->pci_dev_grp);
9289                 break;
9290         }
9291         return rc;
9292 }
9293
9294 /**
9295  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9296  * @pdev: pointer to PCI device
9297  *
9298  * This routine is registered to the PCI subsystem for error handling. It
9299  * is called when kernel error recovery tells the lpfc driver that it is
9300  * OK to resume normal PCI operation after PCI bus error recovery. When
9301  * this routine is invoked, it dispatches the action to the proper SLI-3
9302  * or SLI-4 device io_resume routine, which will resume the device operation.
9303  **/
9304 static void
9305 lpfc_io_resume(struct pci_dev *pdev)
9306 {
9307         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9308         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9309
9310         switch (phba->pci_dev_grp) {
9311         case LPFC_PCI_DEV_LP:
9312                 lpfc_io_resume_s3(pdev);
9313                 break;
9314         case LPFC_PCI_DEV_OC:
9315                 lpfc_io_resume_s4(pdev);
9316                 break;
9317         default:
9318                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9319                                 "1429 Invalid PCI device group: 0x%x\n",
9320                                 phba->pci_dev_grp);
9321                 break;
9322         }
9323         return;
9324 }
9325
9326 static struct pci_device_id lpfc_id_table[] = {
9327         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9328                 PCI_ANY_ID, PCI_ANY_ID, },
9329         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9330                 PCI_ANY_ID, PCI_ANY_ID, },
9331         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9332                 PCI_ANY_ID, PCI_ANY_ID, },
9333         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9334                 PCI_ANY_ID, PCI_ANY_ID, },
9335         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9336                 PCI_ANY_ID, PCI_ANY_ID, },
9337         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9338                 PCI_ANY_ID, PCI_ANY_ID, },
9339         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9340                 PCI_ANY_ID, PCI_ANY_ID, },
9341         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9342                 PCI_ANY_ID, PCI_ANY_ID, },
9343         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9344                 PCI_ANY_ID, PCI_ANY_ID, },
9345         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9346                 PCI_ANY_ID, PCI_ANY_ID, },
9347         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9348                 PCI_ANY_ID, PCI_ANY_ID, },
9349         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9350                 PCI_ANY_ID, PCI_ANY_ID, },
9351         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9352                 PCI_ANY_ID, PCI_ANY_ID, },
9353         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9354                 PCI_ANY_ID, PCI_ANY_ID, },
9355         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9356                 PCI_ANY_ID, PCI_ANY_ID, },
9357         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9358                 PCI_ANY_ID, PCI_ANY_ID, },
9359         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9360                 PCI_ANY_ID, PCI_ANY_ID, },
9361         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9362                 PCI_ANY_ID, PCI_ANY_ID, },
9363         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9364                 PCI_ANY_ID, PCI_ANY_ID, },
9365         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9366                 PCI_ANY_ID, PCI_ANY_ID, },
9367         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9368                 PCI_ANY_ID, PCI_ANY_ID, },
9369         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9370                 PCI_ANY_ID, PCI_ANY_ID, },
9371         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9372                 PCI_ANY_ID, PCI_ANY_ID, },
9373         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9374                 PCI_ANY_ID, PCI_ANY_ID, },
9375         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9376                 PCI_ANY_ID, PCI_ANY_ID, },
9377         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9378                 PCI_ANY_ID, PCI_ANY_ID, },
9379         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9380                 PCI_ANY_ID, PCI_ANY_ID, },
9381         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9382                 PCI_ANY_ID, PCI_ANY_ID, },
9383         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9384                 PCI_ANY_ID, PCI_ANY_ID, },
9385         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9386                 PCI_ANY_ID, PCI_ANY_ID, },
9387         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9388                 PCI_ANY_ID, PCI_ANY_ID, },
9389         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9390                 PCI_ANY_ID, PCI_ANY_ID, },
9391         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9392                 PCI_ANY_ID, PCI_ANY_ID, },
9393         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9394                 PCI_ANY_ID, PCI_ANY_ID, },
9395         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9396                 PCI_ANY_ID, PCI_ANY_ID, },
9397         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9398                 PCI_ANY_ID, PCI_ANY_ID, },
9399         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9400                 PCI_ANY_ID, PCI_ANY_ID, },
9401         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9402                 PCI_ANY_ID, PCI_ANY_ID, },
9403         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9404                 PCI_ANY_ID, PCI_ANY_ID, },
9405         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
9406                 PCI_ANY_ID, PCI_ANY_ID, },
9407         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9408                 PCI_ANY_ID, PCI_ANY_ID, },
9409         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9410                 PCI_ANY_ID, PCI_ANY_ID, },
9411         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9412                 PCI_ANY_ID, PCI_ANY_ID, },
9413         { 0 }
9414 };
9415
9416 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
9417
9418 static struct pci_error_handlers lpfc_err_handler = {
9419         .error_detected = lpfc_io_error_detected,
9420         .slot_reset = lpfc_io_slot_reset,
9421         .resume = lpfc_io_resume,
9422 };
9423
9424 static struct pci_driver lpfc_driver = {
9425         .name           = LPFC_DRIVER_NAME,
9426         .id_table       = lpfc_id_table,
9427         .probe          = lpfc_pci_probe_one,
9428         .remove         = __devexit_p(lpfc_pci_remove_one),
9429         .suspend        = lpfc_pci_suspend_one,
9430         .resume         = lpfc_pci_resume_one,
9431         .err_handler    = &lpfc_err_handler,
9432 };
9433
9434 /**
9435  * lpfc_init - lpfc module initialization routine
9436  *
9437  * This routine is to be invoked when the lpfc module is loaded into the
9438  * kernel. The special kernel macro module_init() is used to indicate the
9439  * role of this routine to the kernel as lpfc module entry point.
9440  *
9441  * Return codes
9442  *   0 - successful
9443  *   -ENOMEM - FC attach transport failed
9444  *   all others - failed
9445  */
9446 static int __init
9447 lpfc_init(void)
9448 {
9449         int error = 0;
9450
9451         printk(LPFC_MODULE_DESC "\n");
9452         printk(LPFC_COPYRIGHT "\n");
9453
9454         if (lpfc_enable_npiv) {
9455                 lpfc_transport_functions.vport_create = lpfc_vport_create;
9456                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
9457         }
9458         lpfc_transport_template =
9459                                 fc_attach_transport(&lpfc_transport_functions);
9460         if (lpfc_transport_template == NULL)
9461                 return -ENOMEM;
9462         if (lpfc_enable_npiv) {
9463                 lpfc_vport_transport_template =
9464                         fc_attach_transport(&lpfc_vport_transport_functions);
9465                 if (lpfc_vport_transport_template == NULL) {
9466                         fc_release_transport(lpfc_transport_template);
9467                         return -ENOMEM;
9468                 }
9469         }
9470         error = pci_register_driver(&lpfc_driver);
9471         if (error) {
9472                 fc_release_transport(lpfc_transport_template);
9473                 if (lpfc_enable_npiv)
9474                         fc_release_transport(lpfc_vport_transport_template);
9475         }
9476
9477         return error;
9478 }
9479
9480 /**
9481  * lpfc_exit - lpfc module removal routine
9482  *
9483  * This routine is invoked when the lpfc module is removed from the kernel.
9484  * The special kernel macro module_exit() is used to indicate the role of
9485  * this routine to the kernel as lpfc module exit point.
9486  */
9487 static void __exit
9488 lpfc_exit(void)
9489 {
9490         pci_unregister_driver(&lpfc_driver);
9491         fc_release_transport(lpfc_transport_template);
9492         if (lpfc_enable_npiv)
9493                 fc_release_transport(lpfc_vport_transport_template);
9494         if (_dump_buf_data) {
9495                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
9496                                 "_dump_buf_data at 0x%p\n",
9497                                 (1L << _dump_buf_data_order), _dump_buf_data);
9498                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
9499         }
9500
9501         if (_dump_buf_dif) {
9502                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
9503                                 "_dump_buf_dif at 0x%p\n",
9504                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
9505                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
9506         }
9507 }
9508
9509 module_init(lpfc_init);
9510 module_exit(lpfc_exit);
9511 MODULE_LICENSE("GPL");
9512 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
9513 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9514 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);