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 > LINK_SPEED_10G)
 450             || ((phba->cfg_link_speed == LINK_SPEED_1G)
 451                 && !(phba->lmt & LMT_1Gb))
 452             || ((phba->cfg_link_speed == LINK_SPEED_2G)
 453                 && !(phba->lmt & LMT_2Gb))
 454             || ((phba->cfg_link_speed == LINK_SPEED_4G)
 455                 && !(phba->lmt & LMT_4Gb))
 456             || ((phba->cfg_link_speed == LINK_SPEED_8G)
 457                 && !(phba->lmt & LMT_8Gb))
 458             || ((phba->cfg_link_speed == LINK_SPEED_10G)
 459                 && !(phba->lmt & LMT_10Gb))) {
 460                 /* Reset link speed to auto */
 461                 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
 462                         "1302 Invalid speed for this board: "
 463                         "Reset link speed to auto: x%x\n",
 464                         phba->cfg_link_speed);
 465                         phba->cfg_link_speed = LINK_SPEED_AUTO;
 466         }
 467
 468         phba->link_state = LPFC_LINK_DOWN;
 469
 470         /* Only process IOCBs on ELS ring till hba_state is READY */
 471         if (psli->ring[psli->extra_ring].cmdringaddr)
 472                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 473         if (psli->ring[psli->fcp_ring].cmdringaddr)
 474                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 475         if (psli->ring[psli->next_ring].cmdringaddr)
 476                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 477
 478         /* Post receive buffers for desired rings */
 479         if (phba->sli_rev != 3)
 480                 lpfc_post_rcv_buf(phba);
 481
 482         /*
 483          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 484          */
 485         if (phba->intr_type == MSIX) {
 486                 rc = lpfc_config_msi(phba, pmb);
 487                 if (rc) {
 488                         mempool_free(pmb, phba->mbox_mem_pool);
 489                         return -EIO;
 490                 }
 491                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 492                 if (rc != MBX_SUCCESS) {
 493                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 494                                         "0352 Config MSI mailbox command "
 495                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 496                                         pmb->u.mb.mbxCommand,
 497                                         pmb->u.mb.mbxStatus);
 498                         mempool_free(pmb, phba->mbox_mem_pool);
 499                         return -EIO;
 500                 }
 501         }
 502
 503         spin_lock_irq(&phba->hbalock);
 504         /* Initialize ERATT handling flag */
 505         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 506
 507         /* Enable appropriate host interrupts */
 508         status = readl(phba->HCregaddr);
 509         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 510         if (psli->num_rings > 0)
 511                 status |= HC_R0INT_ENA;
 512         if (psli->num_rings > 1)
 513                 status |= HC_R1INT_ENA;
 514         if (psli->num_rings > 2)
 515                 status |= HC_R2INT_ENA;
 516         if (psli->num_rings > 3)
 517                 status |= HC_R3INT_ENA;
 518
 519         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 520             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 521                 status &= ~(HC_R0INT_ENA);
 522
 523         writel(status, phba->HCregaddr);
 524         readl(phba->HCregaddr); /* flush */
 525         spin_unlock_irq(&phba->hbalock);
 526
 527         /* Set up ring-0 (ELS) timer */
 528         timeout = phba->fc_ratov * 2;
 529         mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
 530         /* Set up heart beat (HB) timer */
 531         mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 532         phba->hb_outstanding = 0;
 533         phba->last_completion_time = jiffies;
 534         /* Set up error attention (ERATT) polling timer */
 535         mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
 536
 537         if (phba->hba_flag & LINK_DISABLED) {
 538                 lpfc_printf_log(phba,
 539                         KERN_ERR, LOG_INIT,
 540                         "2598 Adapter Link is disabled.\n");
 541                 lpfc_down_link(phba, pmb);
 542                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 543                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 544                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 545                         lpfc_printf_log(phba,
 546                         KERN_ERR, LOG_INIT,
 547                         "2599 Adapter failed to issue DOWN_LINK"
 548                         " mbox command rc 0x%x\n", rc);
 549
 550                         mempool_free(pmb, phba->mbox_mem_pool);
 551                         return -EIO;
 552                 }
 553         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 554                 lpfc_init_link(phba, pmb, phba->cfg_topology,
 555                         phba->cfg_link_speed);
 556                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 557                 lpfc_set_loopback_flag(phba);
 558                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 559                 if (rc != MBX_SUCCESS) {
 560                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 561                                 "0454 Adapter failed to init, mbxCmd x%x "
 562                                 "INIT_LINK, mbxStatus x%x\n",
 563                                 mb->mbxCommand, mb->mbxStatus);
 564
 565                         /* Clear all interrupt enable conditions */
 566                         writel(0, phba->HCregaddr);
 567                         readl(phba->HCregaddr); /* flush */
 568                         /* Clear all pending interrupts */
 569                         writel(0xffffffff, phba->HAregaddr);
 570                         readl(phba->HAregaddr); /* flush */
 571
 572                         phba->link_state = LPFC_HBA_ERROR;
 573                         if (rc != MBX_BUSY)
 574                                 mempool_free(pmb, phba->mbox_mem_pool);
 575                         return -EIO;
 576                 }
 577         }
 578         /* MBOX buffer will be freed in mbox compl */
 579         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 580         if (!pmb) {
 581                 phba->link_state = LPFC_HBA_ERROR;
 582                 return -ENOMEM;
 583         }
 584
 585         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 586         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 587         pmb->vport = phba->pport;
 588         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 589
 590         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 591                 lpfc_printf_log(phba,
 592                                 KERN_ERR,
 593                                 LOG_INIT,
 594                                 "0456 Adapter failed to issue "
 595                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 596                                 rc);
 597                 mempool_free(pmb, phba->mbox_mem_pool);
 598         }
 599
 600         /* Get Option rom version */
 601         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 602         if (!pmb) {
 603                 phba->link_state = LPFC_HBA_ERROR;
 604                 return -ENOMEM;
 605         }
 606
 607         lpfc_dump_wakeup_param(phba, pmb);
 608         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 609         pmb->vport = phba->pport;
 610         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 611
 612         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 613                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 614                                 "to get Option ROM version status x%x\n", rc);
 615                 mempool_free(pmb, phba->mbox_mem_pool);
 616         }
 617
 618         return 0;
 619 }
 620
 621 /**
 622  * lpfc_hba_init_link - Initialize the FC link
 623  * @phba: pointer to lpfc hba data structure.
 624  *
 625  * This routine will issue the INIT_LINK mailbox command call.
 626  * It is available to other drivers through the lpfc_hba data
 627  * structure for use as a delayed link up mechanism with the
 628  * module parameter lpfc_suppress_link_up.
 629  *
 630  * Return code
 631  *              0 - success
 632  *              Any other value - error
 633  **/
 634 int
 635 lpfc_hba_init_link(struct lpfc_hba *phba)
 636 {
 637         struct lpfc_vport *vport = phba->pport;
 638         LPFC_MBOXQ_t *pmb;
 639         MAILBOX_t *mb;
 640         int rc;
 641
 642         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 643         if (!pmb) {
 644                 phba->link_state = LPFC_HBA_ERROR;
 645                 return -ENOMEM;
 646         }
 647         mb = &pmb->u.mb;
 648         pmb->vport = vport;
 649
 650         lpfc_init_link(phba, pmb, phba->cfg_topology,
 651                 phba->cfg_link_speed);
 652         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 653         lpfc_set_loopback_flag(phba);
 654         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 655         if (rc != MBX_SUCCESS) {
 656                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 657                         "0498 Adapter failed to init, mbxCmd x%x "
 658                         "INIT_LINK, mbxStatus x%x\n",
 659                         mb->mbxCommand, mb->mbxStatus);
 660                 /* Clear all interrupt enable conditions */
 661                 writel(0, phba->HCregaddr);
 662                 readl(phba->HCregaddr); /* flush */
 663                 /* Clear all pending interrupts */
 664                 writel(0xffffffff, phba->HAregaddr);
 665                 readl(phba->HAregaddr); /* flush */
 666                 phba->link_state = LPFC_HBA_ERROR;
 667                 if (rc != MBX_BUSY)
 668                         mempool_free(pmb, phba->mbox_mem_pool);
 669                 return -EIO;
 670         }
 671         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 672
 673         return 0;
 674 }
 675
 676 /**
 677  * lpfc_hba_down_link - this routine downs the FC link
 678  *
 679  * This routine will issue the DOWN_LINK mailbox command call.
 680  * It is available to other drivers through the lpfc_hba data
 681  * structure for use to stop the link.
 682  *
 683  * Return code
 684  *              0 - success
 685  *              Any other value - error
 686  **/
 687 int
 688 lpfc_hba_down_link(struct lpfc_hba *phba)
 689 {
 690         LPFC_MBOXQ_t *pmb;
 691         int rc;
 692
 693         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 694         if (!pmb) {
 695                 phba->link_state = LPFC_HBA_ERROR;
 696                 return -ENOMEM;
 697         }
 698
 699         lpfc_printf_log(phba,
 700                 KERN_ERR, LOG_INIT,
 701                 "0491 Adapter Link is disabled.\n");
 702         lpfc_down_link(phba, pmb);
 703         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 704         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 705         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 706                 lpfc_printf_log(phba,
 707                 KERN_ERR, LOG_INIT,
 708                 "2522 Adapter failed to issue DOWN_LINK"
 709                 " mbox command rc 0x%x\n", rc);
 710
 711                 mempool_free(pmb, phba->mbox_mem_pool);
 712                 return -EIO;
 713         }
 714         return 0;
 715 }
 716
 717 /**
 718  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 719  * @phba: pointer to lpfc HBA data structure.
 720  *
 721  * This routine will do LPFC uninitialization before the HBA is reset when
 722  * bringing down the SLI Layer.
 723  *
 724  * Return codes
 725  *   0 - success.
 726  *   Any other value - error.
 727  **/
 728 int
 729 lpfc_hba_down_prep(struct lpfc_hba *phba)
 730 {
 731         struct lpfc_vport **vports;
 732         int i;
 733
 734         if (phba->sli_rev <= LPFC_SLI_REV3) {
 735                 /* Disable interrupts */
 736                 writel(0, phba->HCregaddr);
 737                 readl(phba->HCregaddr); /* flush */
 738         }
 739
 740         if (phba->pport->load_flag & FC_UNLOADING)
 741                 lpfc_cleanup_discovery_resources(phba->pport);
 742         else {
 743                 vports = lpfc_create_vport_work_array(phba);
 744                 if (vports != NULL)
 745                         for (i = 0; i <= phba->max_vports &&
 746                                 vports[i] != NULL; i++)
 747                                 lpfc_cleanup_discovery_resources(vports[i]);
 748                 lpfc_destroy_vport_work_array(phba, vports);
 749         }
 750         return 0;
 751 }
 752
 753 /**
 754  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 755  * @phba: pointer to lpfc HBA data structure.
 756  *
 757  * This routine will do uninitialization after the HBA is reset when bring
 758  * down the SLI Layer.
 759  *
 760  * Return codes
 761  *   0 - success.
 762  *   Any other value - error.
 763  **/
 764 static int
 765 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 766 {
 767         struct lpfc_sli *psli = &phba->sli;
 768         struct lpfc_sli_ring *pring;
 769         struct lpfc_dmabuf *mp, *next_mp;
 770         LIST_HEAD(completions);
 771         int i;
 772
 773         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 774                 lpfc_sli_hbqbuf_free_all(phba);
 775         else {
 776                 /* Cleanup preposted buffers on the ELS ring */
 777                 pring = &psli->ring[LPFC_ELS_RING];
 778                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 779                         list_del(&mp->list);
 780                         pring->postbufq_cnt--;
 781                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 782                         kfree(mp);
 783                 }
 784         }
 785
 786         spin_lock_irq(&phba->hbalock);
 787         for (i = 0; i < psli->num_rings; i++) {
 788                 pring = &psli->ring[i];
 789
 790                 /* At this point in time the HBA is either reset or DOA. Either
 791                  * way, nothing should be on txcmplq as it will NEVER complete.
 792                  */
 793                 list_splice_init(&pring->txcmplq, &completions);
 794                 pring->txcmplq_cnt = 0;
 795                 spin_unlock_irq(&phba->hbalock);
 796
 797                 /* Cancel all the IOCBs from the completions list */
 798                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 799                                       IOERR_SLI_ABORTED);
 800
 801                 lpfc_sli_abort_iocb_ring(phba, pring);
 802                 spin_lock_irq(&phba->hbalock);
 803         }
 804         spin_unlock_irq(&phba->hbalock);
 805
 806         return 0;
 807 }
 808 /**
 809  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 810  * @phba: pointer to lpfc HBA data structure.
 811  *
 812  * This routine will do uninitialization after the HBA is reset when bring
 813  * down the SLI Layer.
 814  *
 815  * Return codes
 816  *   0 - success.
 817  *   Any other value - error.
 818  **/
 819 static int
 820 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 821 {
 822         struct lpfc_scsi_buf *psb, *psb_next;
 823         LIST_HEAD(aborts);
 824         int ret;
 825         unsigned long iflag = 0;
 826         struct lpfc_sglq *sglq_entry = NULL;
 827
 828         ret = lpfc_hba_down_post_s3(phba);
 829         if (ret)
 830                 return ret;
 831         /* At this point in time the HBA is either reset or DOA. Either
 832          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 833          * on the lpfc_sgl_list so that it can either be freed if the
 834          * driver is unloading or reposted if the driver is restarting
 835          * the port.
 836          */
 837         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 838                                         /* scsl_buf_list */
 839         /* abts_sgl_list_lock required because worker thread uses this
 840          * list.
 841          */
 842         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 843         list_for_each_entry(sglq_entry,
 844                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 845                 sglq_entry->state = SGL_FREED;
 846
 847         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 848                         &phba->sli4_hba.lpfc_sgl_list);
 849         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 850         /* abts_scsi_buf_list_lock required because worker thread uses this
 851          * list.
 852          */
 853         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 854         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 855                         &aborts);
 856         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 857         spin_unlock_irq(&phba->hbalock);
 858
 859         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 860                 psb->pCmd = NULL;
 861                 psb->status = IOSTAT_SUCCESS;
 862         }
 863         spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 864         list_splice(&aborts, &phba->lpfc_scsi_buf_list);
 865         spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 866         return 0;
 867 }
 868
 869 /**
 870  * lpfc_hba_down_post - Wrapper func for hba down post routine
 871  * @phba: pointer to lpfc HBA data structure.
 872  *
 873  * This routine wraps the actual SLI3 or SLI4 routine for performing
 874  * uninitialization after the HBA is reset when bring down the SLI Layer.
 875  *
 876  * Return codes
 877  *   0 - success.
 878  *   Any other value - error.
 879  **/
 880 int
 881 lpfc_hba_down_post(struct lpfc_hba *phba)
 882 {
 883         return (*phba->lpfc_hba_down_post)(phba);
 884 }
 885
 886 /**
 887  * lpfc_hb_timeout - The HBA-timer timeout handler
 888  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 889  *
 890  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 891  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 892  * work-port-events bitmap and the worker thread is notified. This timeout
 893  * event will be used by the worker thread to invoke the actual timeout
 894  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 895  * be performed in the timeout handler and the HBA timeout event bit shall
 896  * be cleared by the worker thread after it has taken the event bitmap out.
 897  **/
 898 static void
 899 lpfc_hb_timeout(unsigned long ptr)
 900 {
 901         struct lpfc_hba *phba;
 902         uint32_t tmo_posted;
 903         unsigned long iflag;
 904
 905         phba = (struct lpfc_hba *)ptr;
 906
 907         /* Check for heart beat timeout conditions */
 908         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 909         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 910         if (!tmo_posted)
 911                 phba->pport->work_port_events |= WORKER_HB_TMO;
 912         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 913
 914         /* Tell the worker thread there is work to do */
 915         if (!tmo_posted)
 916                 lpfc_worker_wake_up(phba);
 917         return;
 918 }
 919
 920 /**
 921  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 922  * @phba: pointer to lpfc hba data structure.
 923  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 924  *
 925  * This is the callback function to the lpfc heart-beat mailbox command.
 926  * If configured, the lpfc driver issues the heart-beat mailbox command to
 927  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 928  * heart-beat mailbox command is issued, the driver shall set up heart-beat
 929  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 930  * heart-beat outstanding state. Once the mailbox command comes back and
 931  * no error conditions detected, the heart-beat mailbox command timer is
 932  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
 933  * state is cleared for the next heart-beat. If the timer expired with the
 934  * heart-beat outstanding state set, the driver will put the HBA offline.
 935  **/
 936 static void
 937 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 938 {
 939         unsigned long drvr_flag;
 940
 941         spin_lock_irqsave(&phba->hbalock, drvr_flag);
 942         phba->hb_outstanding = 0;
 943         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
 944
 945         /* Check and reset heart-beat timer is necessary */
 946         mempool_free(pmboxq, phba->mbox_mem_pool);
 947         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
 948                 !(phba->link_state == LPFC_HBA_ERROR) &&
 949                 !(phba->pport->load_flag & FC_UNLOADING))
 950                 mod_timer(&phba->hb_tmofunc,
 951                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 952         return;
 953 }
 954
 955 /**
 956  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
 957  * @phba: pointer to lpfc hba data structure.
 958  *
 959  * This is the actual HBA-timer timeout handler to be invoked by the worker
 960  * thread whenever the HBA timer fired and HBA-timeout event posted. This
 961  * handler performs any periodic operations needed for the device. If such
 962  * periodic event has already been attended to either in the interrupt handler
 963  * or by processing slow-ring or fast-ring events within the HBA-timer
 964  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
 965  * the timer for the next timeout period. If lpfc heart-beat mailbox command
 966  * is configured and there is no heart-beat mailbox command outstanding, a
 967  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
 968  * has been a heart-beat mailbox command outstanding, the HBA shall be put
 969  * to offline.
 970  **/
 971 void
 972 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
 973 {
 974         struct lpfc_vport **vports;
 975         LPFC_MBOXQ_t *pmboxq;
 976         struct lpfc_dmabuf *buf_ptr;
 977         int retval, i;
 978         struct lpfc_sli *psli = &phba->sli;
 979         LIST_HEAD(completions);
 980
 981         vports = lpfc_create_vport_work_array(phba);
 982         if (vports != NULL)
 983                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
 984                         lpfc_rcv_seq_check_edtov(vports[i]);
 985         lpfc_destroy_vport_work_array(phba, vports);
 986
 987         if ((phba->link_state == LPFC_HBA_ERROR) ||
 988                 (phba->pport->load_flag & FC_UNLOADING) ||
 989                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
 990                 return;
 991
 992         spin_lock_irq(&phba->pport->work_port_lock);
 993
 994         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
 995                 jiffies)) {
 996                 spin_unlock_irq(&phba->pport->work_port_lock);
 997                 if (!phba->hb_outstanding)
 998                         mod_timer(&phba->hb_tmofunc,
 999                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1000                 else
1001                         mod_timer(&phba->hb_tmofunc,
1002                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1003                 return;
1004         }
1005         spin_unlock_irq(&phba->pport->work_port_lock);
1006
1007         if (phba->elsbuf_cnt &&
1008                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1009                 spin_lock_irq(&phba->hbalock);
1010                 list_splice_init(&phba->elsbuf, &completions);
1011                 phba->elsbuf_cnt = 0;
1012                 phba->elsbuf_prev_cnt = 0;
1013                 spin_unlock_irq(&phba->hbalock);
1014
1015                 while (!list_empty(&completions)) {
1016                         list_remove_head(&completions, buf_ptr,
1017                                 struct lpfc_dmabuf, list);
1018                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1019                         kfree(buf_ptr);
1020                 }
1021         }
1022         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1023
1024         /* If there is no heart beat outstanding, issue a heartbeat command */
1025         if (phba->cfg_enable_hba_heartbeat) {
1026                 if (!phba->hb_outstanding) {
1027                         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
1028                         if (!pmboxq) {
1029                                 mod_timer(&phba->hb_tmofunc,
1030                                           jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1031                                 return;
1032                         }
1033
1034                         lpfc_heart_beat(phba, pmboxq);
1035                         pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1036                         pmboxq->vport = phba->pport;
1037                         retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
1038
1039                         if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
1040                                 mempool_free(pmboxq, phba->mbox_mem_pool);
1041                                 mod_timer(&phba->hb_tmofunc,
1042                                           jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1043                                 return;
1044                         }
1045                         mod_timer(&phba->hb_tmofunc,
1046                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1047                         phba->hb_outstanding = 1;
1048                         return;
1049                 } else {
1050                         /*
1051                         * If heart beat timeout called with hb_outstanding set
1052                         * we need to take the HBA offline.
1053                         */
1054                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1055                                         "0459 Adapter heartbeat failure, "
1056                                         "taking this port offline.\n");
1057
1058                         spin_lock_irq(&phba->hbalock);
1059                         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1060                         spin_unlock_irq(&phba->hbalock);
1061
1062                         lpfc_offline_prep(phba);
1063                         lpfc_offline(phba);
1064                         lpfc_unblock_mgmt_io(phba);
1065                         phba->link_state = LPFC_HBA_ERROR;
1066                         lpfc_hba_down_post(phba);
1067                 }
1068         }
1069 }
1070
1071 /**
1072  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1073  * @phba: pointer to lpfc hba data structure.
1074  *
1075  * This routine is called to bring the HBA offline when HBA hardware error
1076  * other than Port Error 6 has been detected.
1077  **/
1078 static void
1079 lpfc_offline_eratt(struct lpfc_hba *phba)
1080 {
1081         struct lpfc_sli   *psli = &phba->sli;
1082
1083         spin_lock_irq(&phba->hbalock);
1084         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1085         spin_unlock_irq(&phba->hbalock);
1086         lpfc_offline_prep(phba);
1087
1088         lpfc_offline(phba);
1089         lpfc_reset_barrier(phba);
1090         spin_lock_irq(&phba->hbalock);
1091         lpfc_sli_brdreset(phba);
1092         spin_unlock_irq(&phba->hbalock);
1093         lpfc_hba_down_post(phba);
1094         lpfc_sli_brdready(phba, HS_MBRDY);
1095         lpfc_unblock_mgmt_io(phba);
1096         phba->link_state = LPFC_HBA_ERROR;
1097         return;
1098 }
1099
1100 /**
1101  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1102  * @phba: pointer to lpfc hba data structure.
1103  *
1104  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1105  * other than Port Error 6 has been detected.
1106  **/
1107 static void
1108 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1109 {
1110         lpfc_offline_prep(phba);
1111         lpfc_offline(phba);
1112         lpfc_sli4_brdreset(phba);
1113         lpfc_hba_down_post(phba);
1114         lpfc_sli4_post_status_check(phba);
1115         lpfc_unblock_mgmt_io(phba);
1116         phba->link_state = LPFC_HBA_ERROR;
1117 }
1118
1119 /**
1120  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1121  * @phba: pointer to lpfc hba data structure.
1122  *
1123  * This routine is invoked to handle the deferred HBA hardware error
1124  * conditions. This type of error is indicated by HBA by setting ER1
1125  * and another ER bit in the host status register. The driver will
1126  * wait until the ER1 bit clears before handling the error condition.
1127  **/
1128 static void
1129 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1130 {
1131         uint32_t old_host_status = phba->work_hs;
1132         struct lpfc_sli_ring  *pring;
1133         struct lpfc_sli *psli = &phba->sli;
1134
1135         /* If the pci channel is offline, ignore possible errors,
1136          * since we cannot communicate with the pci card anyway.
1137          */
1138         if (pci_channel_offline(phba->pcidev)) {
1139                 spin_lock_irq(&phba->hbalock);
1140                 phba->hba_flag &= ~DEFER_ERATT;
1141                 spin_unlock_irq(&phba->hbalock);
1142                 return;
1143         }
1144
1145         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1146                 "0479 Deferred Adapter Hardware Error "
1147                 "Data: x%x x%x x%x\n",
1148                 phba->work_hs,
1149                 phba->work_status[0], phba->work_status[1]);
1150
1151         spin_lock_irq(&phba->hbalock);
1152         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1153         spin_unlock_irq(&phba->hbalock);
1154
1155
1156         /*
1157          * Firmware stops when it triggred erratt. That could cause the I/Os
1158          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1159          * SCSI layer retry it after re-establishing link.
1160          */
1161         pring = &psli->ring[psli->fcp_ring];
1162         lpfc_sli_abort_iocb_ring(phba, pring);
1163
1164         /*
1165          * There was a firmware error. Take the hba offline and then
1166          * attempt to restart it.
1167          */
1168         lpfc_offline_prep(phba);
1169         lpfc_offline(phba);
1170
1171         /* Wait for the ER1 bit to clear.*/
1172         while (phba->work_hs & HS_FFER1) {
1173                 msleep(100);
1174                 phba->work_hs = readl(phba->HSregaddr);
1175                 /* If driver is unloading let the worker thread continue */
1176                 if (phba->pport->load_flag & FC_UNLOADING) {
1177                         phba->work_hs = 0;
1178                         break;
1179                 }
1180         }
1181
1182         /*
1183          * This is to ptrotect against a race condition in which
1184          * first write to the host attention register clear the
1185          * host status register.
1186          */
1187         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1188                 phba->work_hs = old_host_status & ~HS_FFER1;
1189
1190         spin_lock_irq(&phba->hbalock);
1191         phba->hba_flag &= ~DEFER_ERATT;
1192         spin_unlock_irq(&phba->hbalock);
1193         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1194         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1195 }
1196
1197 static void
1198 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1199 {
1200         struct lpfc_board_event_header board_event;
1201         struct Scsi_Host *shost;
1202
1203         board_event.event_type = FC_REG_BOARD_EVENT;
1204         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1205         shost = lpfc_shost_from_vport(phba->pport);
1206         fc_host_post_vendor_event(shost, fc_get_event_number(),
1207                                   sizeof(board_event),
1208                                   (char *) &board_event,
1209                                   LPFC_NL_VENDOR_ID);
1210 }
1211
1212 /**
1213  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1214  * @phba: pointer to lpfc hba data structure.
1215  *
1216  * This routine is invoked to handle the following HBA hardware error
1217  * conditions:
1218  * 1 - HBA error attention interrupt
1219  * 2 - DMA ring index out of range
1220  * 3 - Mailbox command came back as unknown
1221  **/
1222 static void
1223 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1224 {
1225         struct lpfc_vport *vport = phba->pport;
1226         struct lpfc_sli   *psli = &phba->sli;
1227         struct lpfc_sli_ring  *pring;
1228         uint32_t event_data;
1229         unsigned long temperature;
1230         struct temp_event temp_event_data;
1231         struct Scsi_Host  *shost;
1232
1233         /* If the pci channel is offline, ignore possible errors,
1234          * since we cannot communicate with the pci card anyway.
1235          */
1236         if (pci_channel_offline(phba->pcidev)) {
1237                 spin_lock_irq(&phba->hbalock);
1238                 phba->hba_flag &= ~DEFER_ERATT;
1239                 spin_unlock_irq(&phba->hbalock);
1240                 return;
1241         }
1242
1243         /* If resets are disabled then leave the HBA alone and return */
1244         if (!phba->cfg_enable_hba_reset)
1245                 return;
1246
1247         /* Send an internal error event to mgmt application */
1248         lpfc_board_errevt_to_mgmt(phba);
1249
1250         if (phba->hba_flag & DEFER_ERATT)
1251                 lpfc_handle_deferred_eratt(phba);
1252
1253         if (phba->work_hs & HS_FFER6) {
1254                 /* Re-establishing Link */
1255                 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1256                                 "1301 Re-establishing Link "
1257                                 "Data: x%x x%x x%x\n",
1258                                 phba->work_hs,
1259                                 phba->work_status[0], phba->work_status[1]);
1260
1261                 spin_lock_irq(&phba->hbalock);
1262                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1263                 spin_unlock_irq(&phba->hbalock);
1264
1265                 /*
1266                 * Firmware stops when it triggled erratt with HS_FFER6.
1267                 * That could cause the I/Os dropped by the firmware.
1268                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1269                 * retry it after re-establishing link.
1270                 */
1271                 pring = &psli->ring[psli->fcp_ring];
1272                 lpfc_sli_abort_iocb_ring(phba, pring);
1273
1274                 /*
1275                  * There was a firmware error.  Take the hba offline and then
1276                  * attempt to restart it.
1277                  */
1278                 lpfc_offline_prep(phba);
1279                 lpfc_offline(phba);
1280                 lpfc_sli_brdrestart(phba);
1281                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1282                         lpfc_unblock_mgmt_io(phba);
1283                         return;
1284                 }
1285                 lpfc_unblock_mgmt_io(phba);
1286         } else if (phba->work_hs & HS_CRIT_TEMP) {
1287                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1288                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1289                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1290                 temp_event_data.data = (uint32_t)temperature;
1291
1292                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1293                                 "0406 Adapter maximum temperature exceeded "
1294                                 "(%ld), taking this port offline "
1295                                 "Data: x%x x%x x%x\n",
1296                                 temperature, phba->work_hs,
1297                                 phba->work_status[0], phba->work_status[1]);
1298
1299                 shost = lpfc_shost_from_vport(phba->pport);
1300                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1301                                           sizeof(temp_event_data),
1302                                           (char *) &temp_event_data,
1303                                           SCSI_NL_VID_TYPE_PCI
1304                                           | PCI_VENDOR_ID_EMULEX);
1305
1306                 spin_lock_irq(&phba->hbalock);
1307                 phba->over_temp_state = HBA_OVER_TEMP;
1308                 spin_unlock_irq(&phba->hbalock);
1309                 lpfc_offline_eratt(phba);
1310
1311         } else {
1312                 /* The if clause above forces this code path when the status
1313                  * failure is a value other than FFER6. Do not call the offline
1314                  * twice. This is the adapter hardware error path.
1315                  */
1316                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1317                                 "0457 Adapter Hardware Error "
1318                                 "Data: x%x x%x x%x\n",
1319                                 phba->work_hs,
1320                                 phba->work_status[0], phba->work_status[1]);
1321
1322                 event_data = FC_REG_DUMP_EVENT;
1323                 shost = lpfc_shost_from_vport(vport);
1324                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1325                                 sizeof(event_data), (char *) &event_data,
1326                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1327
1328                 lpfc_offline_eratt(phba);
1329         }
1330         return;
1331 }
1332
1333 /**
1334  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1335  * @phba: pointer to lpfc hba data structure.
1336  *
1337  * This routine is invoked to handle the SLI4 HBA hardware error attention
1338  * conditions.
1339  **/
1340 static void
1341 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1342 {
1343         struct lpfc_vport *vport = phba->pport;
1344         uint32_t event_data;
1345         struct Scsi_Host *shost;
1346
1347         /* If the pci channel is offline, ignore possible errors, since
1348          * we cannot communicate with the pci card anyway.
1349          */
1350         if (pci_channel_offline(phba->pcidev))
1351                 return;
1352         /* If resets are disabled then leave the HBA alone and return */
1353         if (!phba->cfg_enable_hba_reset)
1354                 return;
1355
1356         /* Send an internal error event to mgmt application */
1357         lpfc_board_errevt_to_mgmt(phba);
1358
1359         /* For now, the actual action for SLI4 device handling is not
1360          * specified yet, just treated it as adaptor hardware failure
1361          */
1362         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1363                         "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1364                         phba->work_status[0], phba->work_status[1]);
1365
1366         event_data = FC_REG_DUMP_EVENT;
1367         shost = lpfc_shost_from_vport(vport);
1368         fc_host_post_vendor_event(shost, fc_get_event_number(),
1369                                   sizeof(event_data), (char *) &event_data,
1370                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1371
1372         lpfc_sli4_offline_eratt(phba);
1373 }
1374
1375 /**
1376  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1377  * @phba: pointer to lpfc HBA data structure.
1378  *
1379  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1380  * routine from the API jump table function pointer from the lpfc_hba struct.
1381  *
1382  * Return codes
1383  *   0 - success.
1384  *   Any other value - error.
1385  **/
1386 void
1387 lpfc_handle_eratt(struct lpfc_hba *phba)
1388 {
1389         (*phba->lpfc_handle_eratt)(phba);
1390 }
1391
1392 /**
1393  * lpfc_handle_latt - The HBA link event handler
1394  * @phba: pointer to lpfc hba data structure.
1395  *
1396  * This routine is invoked from the worker thread to handle a HBA host
1397  * attention link event.
1398  **/
1399 void
1400 lpfc_handle_latt(struct lpfc_hba *phba)
1401 {
1402         struct lpfc_vport *vport = phba->pport;
1403         struct lpfc_sli   *psli = &phba->sli;
1404         LPFC_MBOXQ_t *pmb;
1405         volatile uint32_t control;
1406         struct lpfc_dmabuf *mp;
1407         int rc = 0;
1408
1409         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1410         if (!pmb) {
1411                 rc = 1;
1412                 goto lpfc_handle_latt_err_exit;
1413         }
1414
1415         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1416         if (!mp) {
1417                 rc = 2;
1418                 goto lpfc_handle_latt_free_pmb;
1419         }
1420
1421         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1422         if (!mp->virt) {
1423                 rc = 3;
1424                 goto lpfc_handle_latt_free_mp;
1425         }
1426
1427         /* Cleanup any outstanding ELS commands */
1428         lpfc_els_flush_all_cmd(phba);
1429
1430         psli->slistat.link_event++;
1431         lpfc_read_la(phba, pmb, mp);
1432         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
1433         pmb->vport = vport;
1434         /* Block ELS IOCBs until we have processed this mbox command */
1435         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1436         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1437         if (rc == MBX_NOT_FINISHED) {
1438                 rc = 4;
1439                 goto lpfc_handle_latt_free_mbuf;
1440         }
1441
1442         /* Clear Link Attention in HA REG */
1443         spin_lock_irq(&phba->hbalock);
1444         writel(HA_LATT, phba->HAregaddr);
1445         readl(phba->HAregaddr); /* flush */
1446         spin_unlock_irq(&phba->hbalock);
1447
1448         return;
1449
1450 lpfc_handle_latt_free_mbuf:
1451         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1452         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1453 lpfc_handle_latt_free_mp:
1454         kfree(mp);
1455 lpfc_handle_latt_free_pmb:
1456         mempool_free(pmb, phba->mbox_mem_pool);
1457 lpfc_handle_latt_err_exit:
1458         /* Enable Link attention interrupts */
1459         spin_lock_irq(&phba->hbalock);
1460         psli->sli_flag |= LPFC_PROCESS_LA;
1461         control = readl(phba->HCregaddr);
1462         control |= HC_LAINT_ENA;
1463         writel(control, phba->HCregaddr);
1464         readl(phba->HCregaddr); /* flush */
1465
1466         /* Clear Link Attention in HA REG */
1467         writel(HA_LATT, phba->HAregaddr);
1468         readl(phba->HAregaddr); /* flush */
1469         spin_unlock_irq(&phba->hbalock);
1470         lpfc_linkdown(phba);
1471         phba->link_state = LPFC_HBA_ERROR;
1472
1473         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1474                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1475
1476         return;
1477 }
1478
1479 /**
1480  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1481  * @phba: pointer to lpfc hba data structure.
1482  * @vpd: pointer to the vital product data.
1483  * @len: length of the vital product data in bytes.
1484  *
1485  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1486  * an array of characters. In this routine, the ModelName, ProgramType, and
1487  * ModelDesc, etc. fields of the phba data structure will be populated.
1488  *
1489  * Return codes
1490  *   0 - pointer to the VPD passed in is NULL
1491  *   1 - success
1492  **/
1493 int
1494 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1495 {
1496         uint8_t lenlo, lenhi;
1497         int Length;
1498         int i, j;
1499         int finished = 0;
1500         int index = 0;
1501
1502         if (!vpd)
1503                 return 0;
1504
1505         /* Vital Product */
1506         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1507                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1508                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1509                         (uint32_t) vpd[3]);
1510         while (!finished && (index < (len - 4))) {
1511                 switch (vpd[index]) {
1512                 case 0x82:
1513                 case 0x91:
1514                         index += 1;
1515                         lenlo = vpd[index];
1516                         index += 1;
1517                         lenhi = vpd[index];
1518                         index += 1;
1519                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1520                         index += i;
1521                         break;
1522                 case 0x90:
1523                         index += 1;
1524                         lenlo = vpd[index];
1525                         index += 1;
1526                         lenhi = vpd[index];
1527                         index += 1;
1528                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1529                         if (Length > len - index)
1530                                 Length = len - index;
1531                         while (Length > 0) {
1532                         /* Look for Serial Number */
1533                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1534                                 index += 2;
1535                                 i = vpd[index];
1536                                 index += 1;
1537                                 j = 0;
1538                                 Length -= (3+i);
1539                                 while(i--) {
1540                                         phba->SerialNumber[j++] = vpd[index++];
1541                                         if (j == 31)
1542                                                 break;
1543                                 }
1544                                 phba->SerialNumber[j] = 0;
1545                                 continue;
1546                         }
1547                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1548                                 phba->vpd_flag |= VPD_MODEL_DESC;
1549                                 index += 2;
1550                                 i = vpd[index];
1551                                 index += 1;
1552                                 j = 0;
1553                                 Length -= (3+i);
1554                                 while(i--) {
1555                                         phba->ModelDesc[j++] = vpd[index++];
1556                                         if (j == 255)
1557                                                 break;
1558                                 }
1559                                 phba->ModelDesc[j] = 0;
1560                                 continue;
1561                         }
1562                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1563                                 phba->vpd_flag |= VPD_MODEL_NAME;
1564                                 index += 2;
1565                                 i = vpd[index];
1566                                 index += 1;
1567                                 j = 0;
1568                                 Length -= (3+i);
1569                                 while(i--) {
1570                                         phba->ModelName[j++] = vpd[index++];
1571                                         if (j == 79)
1572                                                 break;
1573                                 }
1574                                 phba->ModelName[j] = 0;
1575                                 continue;
1576                         }
1577                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1578                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1579                                 index += 2;
1580                                 i = vpd[index];
1581                                 index += 1;
1582                                 j = 0;
1583                                 Length -= (3+i);
1584                                 while(i--) {
1585                                         phba->ProgramType[j++] = vpd[index++];
1586                                         if (j == 255)
1587                                                 break;
1588                                 }
1589                                 phba->ProgramType[j] = 0;
1590                                 continue;
1591                         }
1592                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1593                                 phba->vpd_flag |= VPD_PORT;
1594                                 index += 2;
1595                                 i = vpd[index];
1596                                 index += 1;
1597                                 j = 0;
1598                                 Length -= (3+i);
1599                                 while(i--) {
1600                                 phba->Port[j++] = vpd[index++];
1601                                 if (j == 19)
1602                                         break;
1603                                 }
1604                                 phba->Port[j] = 0;
1605                                 continue;
1606                         }
1607                         else {
1608                                 index += 2;
1609                                 i = vpd[index];
1610                                 index += 1;
1611                                 index += i;
1612                                 Length -= (3 + i);
1613                         }
1614                 }
1615                 finished = 0;
1616                 break;
1617                 case 0x78:
1618                         finished = 1;
1619                         break;
1620                 default:
1621                         index ++;
1622                         break;
1623                 }
1624         }
1625
1626         return(1);
1627 }
1628
1629 /**
1630  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1631  * @phba: pointer to lpfc hba data structure.
1632  * @mdp: pointer to the data structure to hold the derived model name.
1633  * @descp: pointer to the data structure to hold the derived description.
1634  *
1635  * This routine retrieves HBA's description based on its registered PCI device
1636  * ID. The @descp passed into this function points to an array of 256 chars. It
1637  * shall be returned with the model name, maximum speed, and the host bus type.
1638  * The @mdp passed into this function points to an array of 80 chars. When the
1639  * function returns, the @mdp will be filled with the model name.
1640  **/
1641 static void
1642 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1643 {
1644         lpfc_vpd_t *vp;
1645         uint16_t dev_id = phba->pcidev->device;
1646         int max_speed;
1647         int GE = 0;
1648         int oneConnect = 0; /* default is not a oneConnect */
1649         struct {
1650                 char *name;
1651                 char *bus;
1652                 char *function;
1653         } m = {"<Unknown>", "", ""};
1654
1655         if (mdp && mdp[0] != '\0'
1656                 && descp && descp[0] != '\0')
1657                 return;
1658
1659         if (phba->lmt & LMT_10Gb)
1660                 max_speed = 10;
1661         else if (phba->lmt & LMT_8Gb)
1662                 max_speed = 8;
1663         else if (phba->lmt & LMT_4Gb)
1664                 max_speed = 4;
1665         else if (phba->lmt & LMT_2Gb)
1666                 max_speed = 2;
1667         else
1668                 max_speed = 1;
1669
1670         vp = &phba->vpd;
1671
1672         switch (dev_id) {
1673         case PCI_DEVICE_ID_FIREFLY:
1674                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1675                 break;
1676         case PCI_DEVICE_ID_SUPERFLY:
1677                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1678                         m = (typeof(m)){"LP7000", "PCI",
1679                                         "Fibre Channel Adapter"};
1680                 else
1681                         m = (typeof(m)){"LP7000E", "PCI",
1682                                         "Fibre Channel Adapter"};
1683                 break;
1684         case PCI_DEVICE_ID_DRAGONFLY:
1685                 m = (typeof(m)){"LP8000", "PCI",
1686                                 "Fibre Channel Adapter"};
1687                 break;
1688         case PCI_DEVICE_ID_CENTAUR:
1689                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1690                         m = (typeof(m)){"LP9002", "PCI",
1691                                         "Fibre Channel Adapter"};
1692                 else
1693                         m = (typeof(m)){"LP9000", "PCI",
1694                                         "Fibre Channel Adapter"};
1695                 break;
1696         case PCI_DEVICE_ID_RFLY:
1697                 m = (typeof(m)){"LP952", "PCI",
1698                                 "Fibre Channel Adapter"};
1699                 break;
1700         case PCI_DEVICE_ID_PEGASUS:
1701                 m = (typeof(m)){"LP9802", "PCI-X",
1702                                 "Fibre Channel Adapter"};
1703                 break;
1704         case PCI_DEVICE_ID_THOR:
1705                 m = (typeof(m)){"LP10000", "PCI-X",
1706                                 "Fibre Channel Adapter"};
1707                 break;
1708         case PCI_DEVICE_ID_VIPER:
1709                 m = (typeof(m)){"LPX1000",  "PCI-X",
1710                                 "Fibre Channel Adapter"};
1711                 break;
1712         case PCI_DEVICE_ID_PFLY:
1713                 m = (typeof(m)){"LP982", "PCI-X",
1714                                 "Fibre Channel Adapter"};
1715                 break;
1716         case PCI_DEVICE_ID_TFLY:
1717                 m = (typeof(m)){"LP1050", "PCI-X",
1718                                 "Fibre Channel Adapter"};
1719                 break;
1720         case PCI_DEVICE_ID_HELIOS:
1721                 m = (typeof(m)){"LP11000", "PCI-X2",
1722                                 "Fibre Channel Adapter"};
1723                 break;
1724         case PCI_DEVICE_ID_HELIOS_SCSP:
1725                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1726                                 "Fibre Channel Adapter"};
1727                 break;
1728         case PCI_DEVICE_ID_HELIOS_DCSP:
1729                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1730                                 "Fibre Channel Adapter"};
1731                 break;
1732         case PCI_DEVICE_ID_NEPTUNE:
1733                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1734                 break;
1735         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1736                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1737                 break;
1738         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1739                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1740                 break;
1741         case PCI_DEVICE_ID_BMID:
1742                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1743                 break;
1744         case PCI_DEVICE_ID_BSMB:
1745                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1746                 break;
1747         case PCI_DEVICE_ID_ZEPHYR:
1748                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1749                 break;
1750         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1751                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1752                 break;
1753         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1754                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1755                 GE = 1;
1756                 break;
1757         case PCI_DEVICE_ID_ZMID:
1758                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1759                 break;
1760         case PCI_DEVICE_ID_ZSMB:
1761                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1762                 break;
1763         case PCI_DEVICE_ID_LP101:
1764                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1765                 break;
1766         case PCI_DEVICE_ID_LP10000S:
1767                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1768                 break;
1769         case PCI_DEVICE_ID_LP11000S:
1770                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1771                 break;
1772         case PCI_DEVICE_ID_LPE11000S:
1773                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1774                 break;
1775         case PCI_DEVICE_ID_SAT:
1776                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1777                 break;
1778         case PCI_DEVICE_ID_SAT_MID:
1779                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1780                 break;
1781         case PCI_DEVICE_ID_SAT_SMB:
1782                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1783                 break;
1784         case PCI_DEVICE_ID_SAT_DCSP:
1785                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1786                 break;
1787         case PCI_DEVICE_ID_SAT_SCSP:
1788                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1789                 break;
1790         case PCI_DEVICE_ID_SAT_S:
1791                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1792                 break;
1793         case PCI_DEVICE_ID_HORNET:
1794                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1795                 GE = 1;
1796                 break;
1797         case PCI_DEVICE_ID_PROTEUS_VF:
1798                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1799                                 "Fibre Channel Adapter"};
1800                 break;
1801         case PCI_DEVICE_ID_PROTEUS_PF:
1802                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1803                                 "Fibre Channel Adapter"};
1804                 break;
1805         case PCI_DEVICE_ID_PROTEUS_S:
1806                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1807                                 "Fibre Channel Adapter"};
1808                 break;
1809         case PCI_DEVICE_ID_TIGERSHARK:
1810                 oneConnect = 1;
1811                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1812                 break;
1813         case PCI_DEVICE_ID_TOMCAT:
1814                 oneConnect = 1;
1815                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1816                 break;
1817         case PCI_DEVICE_ID_FALCON:
1818                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1819                                 "EmulexSecure Fibre"};
1820                 break;
1821         default:
1822                 m = (typeof(m)){"Unknown", "", ""};
1823                 break;
1824         }
1825
1826         if (mdp && mdp[0] == '\0')
1827                 snprintf(mdp, 79,"%s", m.name);
1828         /* oneConnect hba requires special processing, they are all initiators
1829          * and we put the port number on the end
1830          */
1831         if (descp && descp[0] == '\0') {
1832                 if (oneConnect)
1833                         snprintf(descp, 255,
1834                                 "Emulex OneConnect %s, %s Initiator, Port %s",
1835                                 m.name, m.function,
1836                                 phba->Port);
1837                 else
1838                         snprintf(descp, 255,
1839                                 "Emulex %s %d%s %s %s",
1840                                 m.name, max_speed, (GE) ? "GE" : "Gb",
1841                                 m.bus, m.function);
1842         }
1843 }
1844
1845 /**
1846  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1847  * @phba: pointer to lpfc hba data structure.
1848  * @pring: pointer to a IOCB ring.
1849  * @cnt: the number of IOCBs to be posted to the IOCB ring.
1850  *
1851  * This routine posts a given number of IOCBs with the associated DMA buffer
1852  * descriptors specified by the cnt argument to the given IOCB ring.
1853  *
1854  * Return codes
1855  *   The number of IOCBs NOT able to be posted to the IOCB ring.
1856  **/
1857 int
1858 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1859 {
1860         IOCB_t *icmd;
1861         struct lpfc_iocbq *iocb;
1862         struct lpfc_dmabuf *mp1, *mp2;
1863
1864         cnt += pring->missbufcnt;
1865
1866         /* While there are buffers to post */
1867         while (cnt > 0) {
1868                 /* Allocate buffer for  command iocb */
1869                 iocb = lpfc_sli_get_iocbq(phba);
1870                 if (iocb == NULL) {
1871                         pring->missbufcnt = cnt;
1872                         return cnt;
1873                 }
1874                 icmd = &iocb->iocb;
1875
1876                 /* 2 buffers can be posted per command */
1877                 /* Allocate buffer to post */
1878                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1879                 if (mp1)
1880                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1881                 if (!mp1 || !mp1->virt) {
1882                         kfree(mp1);
1883                         lpfc_sli_release_iocbq(phba, iocb);
1884                         pring->missbufcnt = cnt;
1885                         return cnt;
1886                 }
1887
1888                 INIT_LIST_HEAD(&mp1->list);
1889                 /* Allocate buffer to post */
1890                 if (cnt > 1) {
1891                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1892                         if (mp2)
1893                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1894                                                             &mp2->phys);
1895                         if (!mp2 || !mp2->virt) {
1896                                 kfree(mp2);
1897                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1898                                 kfree(mp1);
1899                                 lpfc_sli_release_iocbq(phba, iocb);
1900                                 pring->missbufcnt = cnt;
1901                                 return cnt;
1902                         }
1903
1904                         INIT_LIST_HEAD(&mp2->list);
1905                 } else {
1906                         mp2 = NULL;
1907                 }
1908
1909                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1910                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1911                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1912                 icmd->ulpBdeCount = 1;
1913                 cnt--;
1914                 if (mp2) {
1915                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1916                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1917                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1918                         cnt--;
1919                         icmd->ulpBdeCount = 2;
1920                 }
1921
1922                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1923                 icmd->ulpLe = 1;
1924
1925                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
1926                     IOCB_ERROR) {
1927                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1928                         kfree(mp1);
1929                         cnt++;
1930                         if (mp2) {
1931                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1932                                 kfree(mp2);
1933                                 cnt++;
1934                         }
1935                         lpfc_sli_release_iocbq(phba, iocb);
1936                         pring->missbufcnt = cnt;
1937                         return cnt;
1938                 }
1939                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1940                 if (mp2)
1941                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1942         }
1943         pring->missbufcnt = 0;
1944         return 0;
1945 }
1946
1947 /**
1948  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1949  * @phba: pointer to lpfc hba data structure.
1950  *
1951  * This routine posts initial receive IOCB buffers to the ELS ring. The
1952  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1953  * set to 64 IOCBs.
1954  *
1955  * Return codes
1956  *   0 - success (currently always success)
1957  **/
1958 static int
1959 lpfc_post_rcv_buf(struct lpfc_hba *phba)
1960 {
1961         struct lpfc_sli *psli = &phba->sli;
1962
1963         /* Ring 0, ELS / CT buffers */
1964         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
1965         /* Ring 2 - FCP no buffers needed */
1966
1967         return 0;
1968 }
1969
1970 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1971
1972 /**
1973  * lpfc_sha_init - Set up initial array of hash table entries
1974  * @HashResultPointer: pointer to an array as hash table.
1975  *
1976  * This routine sets up the initial values to the array of hash table entries
1977  * for the LC HBAs.
1978  **/
1979 static void
1980 lpfc_sha_init(uint32_t * HashResultPointer)
1981 {
1982         HashResultPointer[0] = 0x67452301;
1983         HashResultPointer[1] = 0xEFCDAB89;
1984         HashResultPointer[2] = 0x98BADCFE;
1985         HashResultPointer[3] = 0x10325476;
1986         HashResultPointer[4] = 0xC3D2E1F0;
1987 }
1988
1989 /**
1990  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
1991  * @HashResultPointer: pointer to an initial/result hash table.
1992  * @HashWorkingPointer: pointer to an working hash table.
1993  *
1994  * This routine iterates an initial hash table pointed by @HashResultPointer
1995  * with the values from the working hash table pointeed by @HashWorkingPointer.
1996  * The results are putting back to the initial hash table, returned through
1997  * the @HashResultPointer as the result hash table.
1998  **/
1999 static void
2000 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2001 {
2002         int t;
2003         uint32_t TEMP;
2004         uint32_t A, B, C, D, E;
2005         t = 16;
2006         do {
2007                 HashWorkingPointer[t] =
2008                     S(1,
2009                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2010                                                                      8] ^
2011                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2012         } while (++t <= 79);
2013         t = 0;
2014         A = HashResultPointer[0];
2015         B = HashResultPointer[1];
2016         C = HashResultPointer[2];
2017         D = HashResultPointer[3];
2018         E = HashResultPointer[4];
2019
2020         do {
2021                 if (t < 20) {
2022                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2023                 } else if (t < 40) {
2024                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2025                 } else if (t < 60) {
2026                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2027                 } else {
2028                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2029                 }
2030                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2031                 E = D;
2032                 D = C;
2033                 C = S(30, B);
2034                 B = A;
2035                 A = TEMP;
2036         } while (++t <= 79);
2037
2038         HashResultPointer[0] += A;
2039         HashResultPointer[1] += B;
2040         HashResultPointer[2] += C;
2041         HashResultPointer[3] += D;
2042         HashResultPointer[4] += E;
2043
2044 }
2045
2046 /**
2047  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2048  * @RandomChallenge: pointer to the entry of host challenge random number array.
2049  * @HashWorking: pointer to the entry of the working hash array.
2050  *
2051  * This routine calculates the working hash array referred by @HashWorking
2052  * from the challenge random numbers associated with the host, referred by
2053  * @RandomChallenge. The result is put into the entry of the working hash
2054  * array and returned by reference through @HashWorking.
2055  **/
2056 static void
2057 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2058 {
2059         *HashWorking = (*RandomChallenge ^ *HashWorking);
2060 }
2061
2062 /**
2063  * lpfc_hba_init - Perform special handling for LC HBA initialization
2064  * @phba: pointer to lpfc hba data structure.
2065  * @hbainit: pointer to an array of unsigned 32-bit integers.
2066  *
2067  * This routine performs the special handling for LC HBA initialization.
2068  **/
2069 void
2070 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2071 {
2072         int t;
2073         uint32_t *HashWorking;
2074         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2075
2076         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2077         if (!HashWorking)
2078                 return;
2079
2080         HashWorking[0] = HashWorking[78] = *pwwnn++;
2081         HashWorking[1] = HashWorking[79] = *pwwnn;
2082
2083         for (t = 0; t < 7; t++)
2084                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2085
2086         lpfc_sha_init(hbainit);
2087         lpfc_sha_iterate(hbainit, HashWorking);
2088         kfree(HashWorking);
2089 }
2090
2091 /**
2092  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2093  * @vport: pointer to a virtual N_Port data structure.
2094  *
2095  * This routine performs the necessary cleanups before deleting the @vport.
2096  * It invokes the discovery state machine to perform necessary state
2097  * transitions and to release the ndlps associated with the @vport. Note,
2098  * the physical port is treated as @vport 0.
2099  **/
2100 void
2101 lpfc_cleanup(struct lpfc_vport *vport)
2102 {
2103         struct lpfc_hba   *phba = vport->phba;
2104         struct lpfc_nodelist *ndlp, *next_ndlp;
2105         int i = 0;
2106
2107         if (phba->link_state > LPFC_LINK_DOWN)
2108                 lpfc_port_link_failure(vport);
2109
2110         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2111                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2112                         ndlp = lpfc_enable_node(vport, ndlp,
2113                                                 NLP_STE_UNUSED_NODE);
2114                         if (!ndlp)
2115                                 continue;
2116                         spin_lock_irq(&phba->ndlp_lock);
2117                         NLP_SET_FREE_REQ(ndlp);
2118                         spin_unlock_irq(&phba->ndlp_lock);
2119                         /* Trigger the release of the ndlp memory */
2120                         lpfc_nlp_put(ndlp);
2121                         continue;
2122                 }
2123                 spin_lock_irq(&phba->ndlp_lock);
2124                 if (NLP_CHK_FREE_REQ(ndlp)) {
2125                         /* The ndlp should not be in memory free mode already */
2126                         spin_unlock_irq(&phba->ndlp_lock);
2127                         continue;
2128                 } else
2129                         /* Indicate request for freeing ndlp memory */
2130                         NLP_SET_FREE_REQ(ndlp);
2131                 spin_unlock_irq(&phba->ndlp_lock);
2132
2133                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2134                     ndlp->nlp_DID == Fabric_DID) {
2135                         /* Just free up ndlp with Fabric_DID for vports */
2136                         lpfc_nlp_put(ndlp);
2137                         continue;
2138                 }
2139
2140                 if (ndlp->nlp_type & NLP_FABRIC)
2141                         lpfc_disc_state_machine(vport, ndlp, NULL,
2142                                         NLP_EVT_DEVICE_RECOVERY);
2143
2144                 lpfc_disc_state_machine(vport, ndlp, NULL,
2145                                              NLP_EVT_DEVICE_RM);
2146
2147         }
2148
2149         /* At this point, ALL ndlp's should be gone
2150          * because of the previous NLP_EVT_DEVICE_RM.
2151          * Lets wait for this to happen, if needed.
2152          */
2153         while (!list_empty(&vport->fc_nodes)) {
2154                 if (i++ > 3000) {
2155                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2156                                 "0233 Nodelist not empty\n");
2157                         list_for_each_entry_safe(ndlp, next_ndlp,
2158                                                 &vport->fc_nodes, nlp_listp) {
2159                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2160                                                 LOG_NODE,
2161                                                 "0282 did:x%x ndlp:x%p "
2162                                                 "usgmap:x%x refcnt:%d\n",
2163                                                 ndlp->nlp_DID, (void *)ndlp,
2164                                                 ndlp->nlp_usg_map,
2165                                                 atomic_read(
2166                                                         &ndlp->kref.refcount));
2167                         }
2168                         break;
2169                 }
2170
2171                 /* Wait for any activity on ndlps to settle */
2172                 msleep(10);
2173         }
2174 }
2175
2176 /**
2177  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2178  * @vport: pointer to a virtual N_Port data structure.
2179  *
2180  * This routine stops all the timers associated with a @vport. This function
2181  * is invoked before disabling or deleting a @vport. Note that the physical
2182  * port is treated as @vport 0.
2183  **/
2184 void
2185 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2186 {
2187         del_timer_sync(&vport->els_tmofunc);
2188         del_timer_sync(&vport->fc_fdmitmo);
2189         lpfc_can_disctmo(vport);
2190         return;
2191 }
2192
2193 /**
2194  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2195  * @phba: pointer to lpfc hba data structure.
2196  *
2197  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2198  * caller of this routine should already hold the host lock.
2199  **/
2200 void
2201 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2202 {
2203         /* Clear pending FCF rediscovery wait and failover in progress flags */
2204         phba->fcf.fcf_flag &= ~(FCF_REDISC_PEND |
2205                                 FCF_DEAD_DISC |
2206                                 FCF_ACVL_DISC);
2207         /* Now, try to stop the timer */
2208         del_timer(&phba->fcf.redisc_wait);
2209 }
2210
2211 /**
2212  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2213  * @phba: pointer to lpfc hba data structure.
2214  *
2215  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2216  * checks whether the FCF rediscovery wait timer is pending with the host
2217  * lock held before proceeding with disabling the timer and clearing the
2218  * wait timer pendig flag.
2219  **/
2220 void
2221 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2222 {
2223         spin_lock_irq(&phba->hbalock);
2224         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2225                 /* FCF rediscovery timer already fired or stopped */
2226                 spin_unlock_irq(&phba->hbalock);
2227                 return;
2228         }
2229         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2230         spin_unlock_irq(&phba->hbalock);
2231 }
2232
2233 /**
2234  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2235  * @phba: pointer to lpfc hba data structure.
2236  *
2237  * This routine stops all the timers associated with a HBA. This function is
2238  * invoked before either putting a HBA offline or unloading the driver.
2239  **/
2240 void
2241 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2242 {
2243         lpfc_stop_vport_timers(phba->pport);
2244         del_timer_sync(&phba->sli.mbox_tmo);
2245         del_timer_sync(&phba->fabric_block_timer);
2246         del_timer_sync(&phba->eratt_poll);
2247         del_timer_sync(&phba->hb_tmofunc);
2248         phba->hb_outstanding = 0;
2249
2250         switch (phba->pci_dev_grp) {
2251         case LPFC_PCI_DEV_LP:
2252                 /* Stop any LightPulse device specific driver timers */
2253                 del_timer_sync(&phba->fcp_poll_timer);
2254                 break;
2255         case LPFC_PCI_DEV_OC:
2256                 /* Stop any OneConnect device sepcific driver timers */
2257                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2258                 break;
2259         default:
2260                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2261                                 "0297 Invalid device group (x%x)\n",
2262                                 phba->pci_dev_grp);
2263                 break;
2264         }
2265         return;
2266 }
2267
2268 /**
2269  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2270  * @phba: pointer to lpfc hba data structure.
2271  *
2272  * This routine marks a HBA's management interface as blocked. Once the HBA's
2273  * management interface is marked as blocked, all the user space access to
2274  * the HBA, whether they are from sysfs interface or libdfc interface will
2275  * all be blocked. The HBA is set to block the management interface when the
2276  * driver prepares the HBA interface for online or offline.
2277  **/
2278 static void
2279 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2280 {
2281         unsigned long iflag;
2282
2283         spin_lock_irqsave(&phba->hbalock, iflag);
2284         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2285         spin_unlock_irqrestore(&phba->hbalock, iflag);
2286 }
2287
2288 /**
2289  * lpfc_online - Initialize and bring a HBA online
2290  * @phba: pointer to lpfc hba data structure.
2291  *
2292  * This routine initializes the HBA and brings a HBA online. During this
2293  * process, the management interface is blocked to prevent user space access
2294  * to the HBA interfering with the driver initialization.
2295  *
2296  * Return codes
2297  *   0 - successful
2298  *   1 - failed
2299  **/
2300 int
2301 lpfc_online(struct lpfc_hba *phba)
2302 {
2303         struct lpfc_vport *vport;
2304         struct lpfc_vport **vports;
2305         int i;
2306
2307         if (!phba)
2308                 return 0;
2309         vport = phba->pport;
2310
2311         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2312                 return 0;
2313
2314         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2315                         "0458 Bring Adapter online\n");
2316
2317         lpfc_block_mgmt_io(phba);
2318
2319         if (!lpfc_sli_queue_setup(phba)) {
2320                 lpfc_unblock_mgmt_io(phba);
2321                 return 1;
2322         }
2323
2324         if (phba->sli_rev == LPFC_SLI_REV4) {
2325                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2326                         lpfc_unblock_mgmt_io(phba);
2327                         return 1;
2328                 }
2329         } else {
2330                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2331                         lpfc_unblock_mgmt_io(phba);
2332                         return 1;
2333                 }
2334         }
2335
2336         vports = lpfc_create_vport_work_array(phba);
2337         if (vports != NULL)
2338                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2339                         struct Scsi_Host *shost;
2340                         shost = lpfc_shost_from_vport(vports[i]);
2341                         spin_lock_irq(shost->host_lock);
2342                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2343                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2344                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2345                         if (phba->sli_rev == LPFC_SLI_REV4)
2346                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2347                         spin_unlock_irq(shost->host_lock);
2348                 }
2349                 lpfc_destroy_vport_work_array(phba, vports);
2350
2351         lpfc_unblock_mgmt_io(phba);
2352         return 0;
2353 }
2354
2355 /**
2356  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2357  * @phba: pointer to lpfc hba data structure.
2358  *
2359  * This routine marks a HBA's management interface as not blocked. Once the
2360  * HBA's management interface is marked as not blocked, all the user space
2361  * access to the HBA, whether they are from sysfs interface or libdfc
2362  * interface will be allowed. The HBA is set to block the management interface
2363  * when the driver prepares the HBA interface for online or offline and then
2364  * set to unblock the management interface afterwards.
2365  **/
2366 void
2367 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2368 {
2369         unsigned long iflag;
2370
2371         spin_lock_irqsave(&phba->hbalock, iflag);
2372         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2373         spin_unlock_irqrestore(&phba->hbalock, iflag);
2374 }
2375
2376 /**
2377  * lpfc_offline_prep - Prepare a HBA to be brought offline
2378  * @phba: pointer to lpfc hba data structure.
2379  *
2380  * This routine is invoked to prepare a HBA to be brought offline. It performs
2381  * unregistration login to all the nodes on all vports and flushes the mailbox
2382  * queue to make it ready to be brought offline.
2383  **/
2384 void
2385 lpfc_offline_prep(struct lpfc_hba * phba)
2386 {
2387         struct lpfc_vport *vport = phba->pport;
2388         struct lpfc_nodelist  *ndlp, *next_ndlp;
2389         struct lpfc_vport **vports;
2390         struct Scsi_Host *shost;
2391         int i;
2392
2393         if (vport->fc_flag & FC_OFFLINE_MODE)
2394                 return;
2395
2396         lpfc_block_mgmt_io(phba);
2397
2398         lpfc_linkdown(phba);
2399
2400         /* Issue an unreg_login to all nodes on all vports */
2401         vports = lpfc_create_vport_work_array(phba);
2402         if (vports != NULL) {
2403                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2404                         if (vports[i]->load_flag & FC_UNLOADING)
2405                                 continue;
2406                         shost = lpfc_shost_from_vport(vports[i]);
2407                         spin_lock_irq(shost->host_lock);
2408                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2409                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2410                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2411                         spin_unlock_irq(shost->host_lock);
2412
2413                         shost = lpfc_shost_from_vport(vports[i]);
2414                         list_for_each_entry_safe(ndlp, next_ndlp,
2415                                                  &vports[i]->fc_nodes,
2416                                                  nlp_listp) {
2417                                 if (!NLP_CHK_NODE_ACT(ndlp))
2418                                         continue;
2419                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2420                                         continue;
2421                                 if (ndlp->nlp_type & NLP_FABRIC) {
2422                                         lpfc_disc_state_machine(vports[i], ndlp,
2423                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2424                                         lpfc_disc_state_machine(vports[i], ndlp,
2425                                                 NULL, NLP_EVT_DEVICE_RM);
2426                                 }
2427                                 spin_lock_irq(shost->host_lock);
2428                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2429                                 spin_unlock_irq(shost->host_lock);
2430                                 lpfc_unreg_rpi(vports[i], ndlp);
2431                         }
2432                 }
2433         }
2434         lpfc_destroy_vport_work_array(phba, vports);
2435
2436         lpfc_sli_mbox_sys_shutdown(phba);
2437 }
2438
2439 /**
2440  * lpfc_offline - Bring a HBA offline
2441  * @phba: pointer to lpfc hba data structure.
2442  *
2443  * This routine actually brings a HBA offline. It stops all the timers
2444  * associated with the HBA, brings down the SLI layer, and eventually
2445  * marks the HBA as in offline state for the upper layer protocol.
2446  **/
2447 void
2448 lpfc_offline(struct lpfc_hba *phba)
2449 {
2450         struct Scsi_Host  *shost;
2451         struct lpfc_vport **vports;
2452         int i;
2453
2454         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2455                 return;
2456
2457         /* stop port and all timers associated with this hba */
2458         lpfc_stop_port(phba);
2459         vports = lpfc_create_vport_work_array(phba);
2460         if (vports != NULL)
2461                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2462                         lpfc_stop_vport_timers(vports[i]);
2463         lpfc_destroy_vport_work_array(phba, vports);
2464         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2465                         "0460 Bring Adapter offline\n");
2466         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2467            now.  */
2468         lpfc_sli_hba_down(phba);
2469         spin_lock_irq(&phba->hbalock);
2470         phba->work_ha = 0;
2471         spin_unlock_irq(&phba->hbalock);
2472         vports = lpfc_create_vport_work_array(phba);
2473         if (vports != NULL)
2474                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2475                         shost = lpfc_shost_from_vport(vports[i]);
2476                         spin_lock_irq(shost->host_lock);
2477                         vports[i]->work_port_events = 0;
2478                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2479                         spin_unlock_irq(shost->host_lock);
2480                 }
2481         lpfc_destroy_vport_work_array(phba, vports);
2482 }
2483
2484 /**
2485  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2486  * @phba: pointer to lpfc hba data structure.
2487  *
2488  * This routine is to free all the SCSI buffers and IOCBs from the driver
2489  * list back to kernel. It is called from lpfc_pci_remove_one to free
2490  * the internal resources before the device is removed from the system.
2491  *
2492  * Return codes
2493  *   0 - successful (for now, it always returns 0)
2494  **/
2495 static int
2496 lpfc_scsi_free(struct lpfc_hba *phba)
2497 {
2498         struct lpfc_scsi_buf *sb, *sb_next;
2499         struct lpfc_iocbq *io, *io_next;
2500
2501         spin_lock_irq(&phba->hbalock);
2502         /* Release all the lpfc_scsi_bufs maintained by this host. */
2503         spin_lock(&phba->scsi_buf_list_lock);
2504         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2505                 list_del(&sb->list);
2506                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2507                               sb->dma_handle);
2508                 kfree(sb);
2509                 phba->total_scsi_bufs--;
2510         }
2511         spin_unlock(&phba->scsi_buf_list_lock);
2512
2513         /* Release all the lpfc_iocbq entries maintained by this host. */
2514         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2515                 list_del(&io->list);
2516                 kfree(io);
2517                 phba->total_iocbq_bufs--;
2518         }
2519         spin_unlock_irq(&phba->hbalock);
2520         return 0;
2521 }
2522
2523 /**
2524  * lpfc_create_port - Create an FC port
2525  * @phba: pointer to lpfc hba data structure.
2526  * @instance: a unique integer ID to this FC port.
2527  * @dev: pointer to the device data structure.
2528  *
2529  * This routine creates a FC port for the upper layer protocol. The FC port
2530  * can be created on top of either a physical port or a virtual port provided
2531  * by the HBA. This routine also allocates a SCSI host data structure (shost)
2532  * and associates the FC port created before adding the shost into the SCSI
2533  * layer.
2534  *
2535  * Return codes
2536  *   @vport - pointer to the virtual N_Port data structure.
2537  *   NULL - port create failed.
2538  **/
2539 struct lpfc_vport *
2540 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2541 {
2542         struct lpfc_vport *vport;
2543         struct Scsi_Host  *shost;
2544         int error = 0;
2545
2546         if (dev != &phba->pcidev->dev)
2547                 shost = scsi_host_alloc(&lpfc_vport_template,
2548                                         sizeof(struct lpfc_vport));
2549         else
2550                 shost = scsi_host_alloc(&lpfc_template,
2551                                         sizeof(struct lpfc_vport));
2552         if (!shost)
2553                 goto out;
2554
2555         vport = (struct lpfc_vport *) shost->hostdata;
2556         vport->phba = phba;
2557         vport->load_flag |= FC_LOADING;
2558         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2559         vport->fc_rscn_flush = 0;
2560
2561         lpfc_get_vport_cfgparam(vport);
2562         shost->unique_id = instance;
2563         shost->max_id = LPFC_MAX_TARGET;
2564         shost->max_lun = vport->cfg_max_luns;
2565         shost->this_id = -1;
2566         shost->max_cmd_len = 16;
2567         if (phba->sli_rev == LPFC_SLI_REV4) {
2568                 shost->dma_boundary =
2569                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2570                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2571         }
2572
2573         /*
2574          * Set initial can_queue value since 0 is no longer supported and
2575          * scsi_add_host will fail. This will be adjusted later based on the
2576          * max xri value determined in hba setup.
2577          */
2578         shost->can_queue = phba->cfg_hba_queue_depth - 10;
2579         if (dev != &phba->pcidev->dev) {
2580                 shost->transportt = lpfc_vport_transport_template;
2581                 vport->port_type = LPFC_NPIV_PORT;
2582         } else {
2583                 shost->transportt = lpfc_transport_template;
2584                 vport->port_type = LPFC_PHYSICAL_PORT;
2585         }
2586
2587         /* Initialize all internally managed lists. */
2588         INIT_LIST_HEAD(&vport->fc_nodes);
2589         INIT_LIST_HEAD(&vport->rcv_buffer_list);
2590         spin_lock_init(&vport->work_port_lock);
2591
2592         init_timer(&vport->fc_disctmo);
2593         vport->fc_disctmo.function = lpfc_disc_timeout;
2594         vport->fc_disctmo.data = (unsigned long)vport;
2595
2596         init_timer(&vport->fc_fdmitmo);
2597         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2598         vport->fc_fdmitmo.data = (unsigned long)vport;
2599
2600         init_timer(&vport->els_tmofunc);
2601         vport->els_tmofunc.function = lpfc_els_timeout;
2602         vport->els_tmofunc.data = (unsigned long)vport;
2603         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
2604                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
2605                 /* check for menlo minimum sg count */
2606                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) {
2607                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
2608                         shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2609                 }
2610         }
2611
2612         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2613         if (error)
2614                 goto out_put_shost;
2615
2616         spin_lock_irq(&phba->hbalock);
2617         list_add_tail(&vport->listentry, &phba->port_list);
2618         spin_unlock_irq(&phba->hbalock);
2619         return vport;
2620
2621 out_put_shost:
2622         scsi_host_put(shost);
2623 out:
2624         return NULL;
2625 }
2626
2627 /**
2628  * destroy_port -  destroy an FC port
2629  * @vport: pointer to an lpfc virtual N_Port data structure.
2630  *
2631  * This routine destroys a FC port from the upper layer protocol. All the
2632  * resources associated with the port are released.
2633  **/
2634 void
2635 destroy_port(struct lpfc_vport *vport)
2636 {
2637         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2638         struct lpfc_hba  *phba = vport->phba;
2639
2640         lpfc_debugfs_terminate(vport);
2641         fc_remove_host(shost);
2642         scsi_remove_host(shost);
2643
2644         spin_lock_irq(&phba->hbalock);
2645         list_del_init(&vport->listentry);
2646         spin_unlock_irq(&phba->hbalock);
2647
2648         lpfc_cleanup(vport);
2649         return;
2650 }
2651
2652 /**
2653  * lpfc_get_instance - Get a unique integer ID
2654  *
2655  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2656  * uses the kernel idr facility to perform the task.
2657  *
2658  * Return codes:
2659  *   instance - a unique integer ID allocated as the new instance.
2660  *   -1 - lpfc get instance failed.
2661  **/
2662 int
2663 lpfc_get_instance(void)
2664 {
2665         int instance = 0;
2666
2667         /* Assign an unused number */
2668         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2669                 return -1;
2670         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2671                 return -1;
2672         return instance;
2673 }
2674
2675 /**
2676  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2677  * @shost: pointer to SCSI host data structure.
2678  * @time: elapsed time of the scan in jiffies.
2679  *
2680  * This routine is called by the SCSI layer with a SCSI host to determine
2681  * whether the scan host is finished.
2682  *
2683  * Note: there is no scan_start function as adapter initialization will have
2684  * asynchronously kicked off the link initialization.
2685  *
2686  * Return codes
2687  *   0 - SCSI host scan is not over yet.
2688  *   1 - SCSI host scan is over.
2689  **/
2690 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2691 {
2692         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2693         struct lpfc_hba   *phba = vport->phba;
2694         int stat = 0;
2695
2696         spin_lock_irq(shost->host_lock);
2697
2698         if (vport->load_flag & FC_UNLOADING) {
2699                 stat = 1;
2700                 goto finished;
2701         }
2702         if (time >= 30 * HZ) {
2703                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2704                                 "0461 Scanning longer than 30 "
2705                                 "seconds.  Continuing initialization\n");
2706                 stat = 1;
2707                 goto finished;
2708         }
2709         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2710                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2711                                 "0465 Link down longer than 15 "
2712                                 "seconds.  Continuing initialization\n");
2713                 stat = 1;
2714                 goto finished;
2715         }
2716
2717         if (vport->port_state != LPFC_VPORT_READY)
2718                 goto finished;
2719         if (vport->num_disc_nodes || vport->fc_prli_sent)
2720                 goto finished;
2721         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2722                 goto finished;
2723         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2724                 goto finished;
2725
2726         stat = 1;
2727
2728 finished:
2729         spin_unlock_irq(shost->host_lock);
2730         return stat;
2731 }
2732
2733 /**
2734  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2735  * @shost: pointer to SCSI host data structure.
2736  *
2737  * This routine initializes a given SCSI host attributes on a FC port. The
2738  * SCSI host can be either on top of a physical port or a virtual port.
2739  **/
2740 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2741 {
2742         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2743         struct lpfc_hba   *phba = vport->phba;
2744         /*
2745          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2746          */
2747
2748         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2749         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2750         fc_host_supported_classes(shost) = FC_COS_CLASS3;
2751
2752         memset(fc_host_supported_fc4s(shost), 0,
2753                sizeof(fc_host_supported_fc4s(shost)));
2754         fc_host_supported_fc4s(shost)[2] = 1;
2755         fc_host_supported_fc4s(shost)[7] = 1;
2756
2757         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2758                                  sizeof fc_host_symbolic_name(shost));
2759
2760         fc_host_supported_speeds(shost) = 0;
2761         if (phba->lmt & LMT_10Gb)
2762                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2763         if (phba->lmt & LMT_8Gb)
2764                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2765         if (phba->lmt & LMT_4Gb)
2766                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2767         if (phba->lmt & LMT_2Gb)
2768                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2769         if (phba->lmt & LMT_1Gb)
2770                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2771
2772         fc_host_maxframe_size(shost) =
2773                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2774                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2775
2776         /* This value is also unchanging */
2777         memset(fc_host_active_fc4s(shost), 0,
2778                sizeof(fc_host_active_fc4s(shost)));
2779         fc_host_active_fc4s(shost)[2] = 1;
2780         fc_host_active_fc4s(shost)[7] = 1;
2781
2782         fc_host_max_npiv_vports(shost) = phba->max_vpi;
2783         spin_lock_irq(shost->host_lock);
2784         vport->load_flag &= ~FC_LOADING;
2785         spin_unlock_irq(shost->host_lock);
2786 }
2787
2788 /**
2789  * lpfc_stop_port_s3 - Stop SLI3 device port
2790  * @phba: pointer to lpfc hba data structure.
2791  *
2792  * This routine is invoked to stop an SLI3 device port, it stops the device
2793  * from generating interrupts and stops the device driver's timers for the
2794  * device.
2795  **/
2796 static void
2797 lpfc_stop_port_s3(struct lpfc_hba *phba)
2798 {
2799         /* Clear all interrupt enable conditions */
2800         writel(0, phba->HCregaddr);
2801         readl(phba->HCregaddr); /* flush */
2802         /* Clear all pending interrupts */
2803         writel(0xffffffff, phba->HAregaddr);
2804         readl(phba->HAregaddr); /* flush */
2805
2806         /* Reset some HBA SLI setup states */
2807         lpfc_stop_hba_timers(phba);
2808         phba->pport->work_port_events = 0;
2809 }
2810
2811 /**
2812  * lpfc_stop_port_s4 - Stop SLI4 device port
2813  * @phba: pointer to lpfc hba data structure.
2814  *
2815  * This routine is invoked to stop an SLI4 device port, it stops the device
2816  * from generating interrupts and stops the device driver's timers for the
2817  * device.
2818  **/
2819 static void
2820 lpfc_stop_port_s4(struct lpfc_hba *phba)
2821 {
2822         /* Reset some HBA SLI4 setup states */
2823         lpfc_stop_hba_timers(phba);
2824         phba->pport->work_port_events = 0;
2825         phba->sli4_hba.intr_enable = 0;
2826 }
2827
2828 /**
2829  * lpfc_stop_port - Wrapper function for stopping hba port
2830  * @phba: Pointer to HBA context object.
2831  *
2832  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2833  * the API jump table function pointer from the lpfc_hba struct.
2834  **/
2835 void
2836 lpfc_stop_port(struct lpfc_hba *phba)
2837 {
2838         phba->lpfc_stop_port(phba);
2839 }
2840
2841 /**
2842  * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port.
2843  * @phba: pointer to lpfc hba data structure.
2844  *
2845  * This routine is invoked to remove the driver default fcf record from
2846  * the port.  This routine currently acts on FCF Index 0.
2847  *
2848  **/
2849 void
2850 lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba)
2851 {
2852         int rc = 0;
2853         LPFC_MBOXQ_t *mboxq;
2854         struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record;
2855         uint32_t mbox_tmo, req_len;
2856         uint32_t shdr_status, shdr_add_status;
2857
2858         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2859         if (!mboxq) {
2860                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2861                         "2020 Failed to allocate mbox for ADD_FCF cmd\n");
2862                 return;
2863         }
2864
2865         req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) -
2866                   sizeof(struct lpfc_sli4_cfg_mhdr);
2867         rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2868                               LPFC_MBOX_OPCODE_FCOE_DELETE_FCF,
2869                               req_len, LPFC_SLI4_MBX_EMBED);
2870         /*
2871          * In phase 1, there is a single FCF index, 0.  In phase2, the driver
2872          * supports multiple FCF indices.
2873          */
2874         del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry;
2875         bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1);
2876         bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record,
2877                phba->fcf.current_rec.fcf_indx);
2878
2879         if (!phba->sli4_hba.intr_enable)
2880                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2881         else {
2882                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
2883                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
2884         }
2885         /* The IOCTL status is embedded in the mailbox subheader. */
2886         shdr_status = bf_get(lpfc_mbox_hdr_status,
2887                              &del_fcf_record->header.cfg_shdr.response);
2888         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2889                                  &del_fcf_record->header.cfg_shdr.response);
2890         if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2891                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2892                                 "2516 DEL FCF of default FCF Index failed "
2893                                 "mbx status x%x, status x%x add_status x%x\n",
2894                                 rc, shdr_status, shdr_add_status);
2895         }
2896         if (rc != MBX_TIMEOUT)
2897                 mempool_free(mboxq, phba->mbox_mem_pool);
2898 }
2899
2900 /**
2901  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2902  * @phba: Pointer to hba for which this call is being executed.
2903  *
2904  * This routine starts the timer waiting for the FCF rediscovery to complete.
2905  **/
2906 void
2907 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
2908 {
2909         unsigned long fcf_redisc_wait_tmo =
2910                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
2911         /* Start fcf rediscovery wait period timer */
2912         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
2913         spin_lock_irq(&phba->hbalock);
2914         /* Allow action to new fcf asynchronous event */
2915         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2916         /* Mark the FCF rediscovery pending state */
2917         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
2918         spin_unlock_irq(&phba->hbalock);
2919 }
2920
2921 /**
2922  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2923  * @ptr: Map to lpfc_hba data structure pointer.
2924  *
2925  * This routine is invoked when waiting for FCF table rediscover has been
2926  * timed out. If new FCF record(s) has (have) been discovered during the
2927  * wait period, a new FCF event shall be added to the FCOE async event
2928  * list, and then worker thread shall be waked up for processing from the
2929  * worker thread context.
2930  **/
2931 void
2932 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
2933 {
2934         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2935
2936         /* Don't send FCF rediscovery event if timer cancelled */
2937         spin_lock_irq(&phba->hbalock);
2938         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2939                 spin_unlock_irq(&phba->hbalock);
2940                 return;
2941         }
2942         /* Clear FCF rediscovery timer pending flag */
2943         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2944         /* FCF rediscovery event to worker thread */
2945         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
2946         spin_unlock_irq(&phba->hbalock);
2947         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2948                         "2776 FCF rediscover wait timer expired, post "
2949                         "a worker thread event for FCF table scan\n");
2950         /* wake up worker thread */
2951         lpfc_worker_wake_up(phba);
2952 }
2953
2954 /**
2955  * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2956  * @phba: pointer to lpfc hba data structure.
2957  *
2958  * This function uses the QUERY_FW_CFG mailbox command to determine if the
2959  * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2960  * was successful and the firmware supports FCoE. Any other return indicates
2961  * a error. It is assumed that this function will be called before interrupts
2962  * are enabled.
2963  **/
2964 static int
2965 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba)
2966 {
2967         int rc = 0;
2968         LPFC_MBOXQ_t *mboxq;
2969         struct lpfc_mbx_query_fw_cfg *query_fw_cfg;
2970         uint32_t length;
2971         uint32_t shdr_status, shdr_add_status;
2972
2973         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2974         if (!mboxq) {
2975                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2976                                 "2621 Failed to allocate mbox for "
2977                                 "query firmware config cmd\n");
2978                 return -ENOMEM;
2979         }
2980         query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg;
2981         length = (sizeof(struct lpfc_mbx_query_fw_cfg) -
2982                   sizeof(struct lpfc_sli4_cfg_mhdr));
2983         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
2984                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
2985                          length, LPFC_SLI4_MBX_EMBED);
2986         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2987         /* The IOCTL status is embedded in the mailbox subheader. */
2988         shdr_status = bf_get(lpfc_mbox_hdr_status,
2989                              &query_fw_cfg->header.cfg_shdr.response);
2990         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2991                                  &query_fw_cfg->header.cfg_shdr.response);
2992         if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2993                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2994                                 "2622 Query Firmware Config failed "
2995                                 "mbx status x%x, status x%x add_status x%x\n",
2996                                 rc, shdr_status, shdr_add_status);
2997                 return -EINVAL;
2998         }
2999         if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) {
3000                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3001                                 "2623 FCoE Function not supported by firmware. "
3002                                 "Function mode = %08x\n",
3003                                 query_fw_cfg->function_mode);
3004                 return -EINVAL;
3005         }
3006         if (rc != MBX_TIMEOUT)
3007                 mempool_free(mboxq, phba->mbox_mem_pool);
3008         return 0;
3009 }
3010
3011 /**
3012  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3013  * @phba: pointer to lpfc hba data structure.
3014  * @acqe_link: pointer to the async link completion queue entry.
3015  *
3016  * This routine is to parse the SLI4 link-attention link fault code and
3017  * translate it into the base driver's read link attention mailbox command
3018  * status.
3019  *
3020  * Return: Link-attention status in terms of base driver's coding.
3021  **/
3022 static uint16_t
3023 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3024                            struct lpfc_acqe_link *acqe_link)
3025 {
3026         uint16_t latt_fault;
3027
3028         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3029         case LPFC_ASYNC_LINK_FAULT_NONE:
3030         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3031         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3032                 latt_fault = 0;
3033                 break;
3034         default:
3035                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3036                                 "0398 Invalid link fault code: x%x\n",
3037                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3038                 latt_fault = MBXERR_ERROR;
3039                 break;
3040         }
3041         return latt_fault;
3042 }
3043
3044 /**
3045  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3046  * @phba: pointer to lpfc hba data structure.
3047  * @acqe_link: pointer to the async link completion queue entry.
3048  *
3049  * This routine is to parse the SLI4 link attention type and translate it
3050  * into the base driver's link attention type coding.
3051  *
3052  * Return: Link attention type in terms of base driver's coding.
3053  **/
3054 static uint8_t
3055 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3056                           struct lpfc_acqe_link *acqe_link)
3057 {
3058         uint8_t att_type;
3059
3060         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3061         case LPFC_ASYNC_LINK_STATUS_DOWN:
3062         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3063                 att_type = AT_LINK_DOWN;
3064                 break;
3065         case LPFC_ASYNC_LINK_STATUS_UP:
3066                 /* Ignore physical link up events - wait for logical link up */
3067                 att_type = AT_RESERVED;
3068                 break;
3069         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3070                 att_type = AT_LINK_UP;
3071                 break;
3072         default:
3073                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3074                                 "0399 Invalid link attention type: x%x\n",
3075                                 bf_get(lpfc_acqe_link_status, acqe_link));
3076                 att_type = AT_RESERVED;
3077                 break;
3078         }
3079         return att_type;
3080 }
3081
3082 /**
3083  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3084  * @phba: pointer to lpfc hba data structure.
3085  * @acqe_link: pointer to the async link completion queue entry.
3086  *
3087  * This routine is to parse the SLI4 link-attention link speed and translate
3088  * it into the base driver's link-attention link speed coding.
3089  *
3090  * Return: Link-attention link speed in terms of base driver's coding.
3091  **/
3092 static uint8_t
3093 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3094                                 struct lpfc_acqe_link *acqe_link)
3095 {
3096         uint8_t link_speed;
3097
3098         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3099         case LPFC_ASYNC_LINK_SPEED_ZERO:
3100                 link_speed = LA_UNKNW_LINK;
3101                 break;
3102         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3103                 link_speed = LA_UNKNW_LINK;
3104                 break;
3105         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3106                 link_speed = LA_UNKNW_LINK;
3107                 break;
3108         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3109                 link_speed = LA_1GHZ_LINK;
3110                 break;
3111         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3112                 link_speed = LA_10GHZ_LINK;
3113                 break;
3114         default:
3115                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3116                                 "0483 Invalid link-attention link speed: x%x\n",
3117                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3118                 link_speed = LA_UNKNW_LINK;
3119                 break;
3120         }
3121         return link_speed;
3122 }
3123
3124 /**
3125  * lpfc_sli4_async_link_evt - Process the asynchronous link event
3126  * @phba: pointer to lpfc hba data structure.
3127  * @acqe_link: pointer to the async link completion queue entry.
3128  *
3129  * This routine is to handle the SLI4 asynchronous link event.
3130  **/
3131 static void
3132 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3133                          struct lpfc_acqe_link *acqe_link)
3134 {
3135         struct lpfc_dmabuf *mp;
3136         LPFC_MBOXQ_t *pmb;
3137         MAILBOX_t *mb;
3138         READ_LA_VAR *la;
3139         uint8_t att_type;
3140
3141         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3142         if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
3143                 return;
3144         phba->fcoe_eventtag = acqe_link->event_tag;
3145         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3146         if (!pmb) {
3147                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3148                                 "0395 The mboxq allocation failed\n");
3149                 return;
3150         }
3151         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3152         if (!mp) {
3153                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3154                                 "0396 The lpfc_dmabuf allocation failed\n");
3155                 goto out_free_pmb;
3156         }
3157         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3158         if (!mp->virt) {
3159                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3160                                 "0397 The mbuf allocation failed\n");
3161                 goto out_free_dmabuf;
3162         }
3163
3164         /* Cleanup any outstanding ELS commands */
3165         lpfc_els_flush_all_cmd(phba);
3166
3167         /* Block ELS IOCBs until we have done process link event */
3168         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3169
3170         /* Update link event statistics */
3171         phba->sli.slistat.link_event++;
3172
3173         /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
3174         lpfc_read_la(phba, pmb, mp);
3175         pmb->vport = phba->pport;
3176
3177         /* Parse and translate status field */
3178         mb = &pmb->u.mb;
3179         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3180
3181         /* Parse and translate link attention fields */
3182         la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
3183         la->eventTag = acqe_link->event_tag;
3184         la->attType = att_type;
3185         la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);
3186
3187         /* Fake the the following irrelvant fields */
3188         la->topology = TOPOLOGY_PT_PT;
3189         la->granted_AL_PA = 0;
3190         la->il = 0;
3191         la->pb = 0;
3192         la->fa = 0;
3193         la->mm = 0;
3194
3195         /* Keep the link status for extra SLI4 state machine reference */
3196         phba->sli4_hba.link_state.speed =
3197                                 bf_get(lpfc_acqe_link_speed, acqe_link);
3198         phba->sli4_hba.link_state.duplex =
3199                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3200         phba->sli4_hba.link_state.status =
3201                                 bf_get(lpfc_acqe_link_status, acqe_link);
3202         phba->sli4_hba.link_state.physical =
3203                                 bf_get(lpfc_acqe_link_physical, acqe_link);
3204         phba->sli4_hba.link_state.fault =
3205                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3206         phba->sli4_hba.link_state.logical_speed =
3207                                 bf_get(lpfc_acqe_qos_link_speed, acqe_link);
3208
3209         /* Invoke the lpfc_handle_latt mailbox command callback function */
3210         lpfc_mbx_cmpl_read_la(phba, pmb);
3211
3212         return;
3213
3214 out_free_dmabuf:
3215         kfree(mp);
3216 out_free_pmb:
3217         mempool_free(pmb, phba->mbox_mem_pool);
3218 }
3219
3220 /**
3221  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3222  * @vport: pointer to vport data structure.
3223  *
3224  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3225  * response to a CVL event.
3226  *
3227  * Return the pointer to the ndlp with the vport if successful, otherwise
3228  * return NULL.
3229  **/
3230 static struct lpfc_nodelist *
3231 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3232 {
3233         struct lpfc_nodelist *ndlp;
3234         struct Scsi_Host *shost;
3235         struct lpfc_hba *phba;
3236
3237         if (!vport)
3238                 return NULL;
3239         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3240         if (!ndlp)
3241                 return NULL;
3242         phba = vport->phba;
3243         if (!phba)
3244                 return NULL;
3245         if (phba->pport->port_state <= LPFC_FLOGI)
3246                 return NULL;
3247         /* If virtual link is not yet instantiated ignore CVL */
3248         if (vport->port_state <= LPFC_FDISC)
3249                 return NULL;
3250         shost = lpfc_shost_from_vport(vport);
3251         if (!shost)
3252                 return NULL;
3253         lpfc_linkdown_port(vport);
3254         lpfc_cleanup_pending_mbox(vport);
3255         spin_lock_irq(shost->host_lock);
3256         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3257         spin_unlock_irq(shost->host_lock);
3258
3259         return ndlp;
3260 }
3261
3262 /**
3263  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3264  * @vport: pointer to lpfc hba data structure.
3265  *
3266  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3267  * response to a FCF dead event.
3268  **/
3269 static void
3270 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3271 {
3272         struct lpfc_vport **vports;
3273         int i;
3274
3275         vports = lpfc_create_vport_work_array(phba);
3276         if (vports)
3277                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3278                         lpfc_sli4_perform_vport_cvl(vports[i]);
3279         lpfc_destroy_vport_work_array(phba, vports);
3280 }
3281
3282 /**
3283  * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
3284  * @phba: pointer to lpfc hba data structure.
3285  * @acqe_link: pointer to the async fcoe completion queue entry.
3286  *
3287  * This routine is to handle the SLI4 asynchronous fcoe event.
3288  **/
3289 static void
3290 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
3291                          struct lpfc_acqe_fcoe *acqe_fcoe)
3292 {
3293         uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
3294         int rc;
3295         struct lpfc_vport *vport;
3296         struct lpfc_nodelist *ndlp;
3297         struct Scsi_Host  *shost;
3298         int active_vlink_present;
3299         struct lpfc_vport **vports;
3300         int i;
3301
3302         phba->fc_eventTag = acqe_fcoe->event_tag;
3303         phba->fcoe_eventtag = acqe_fcoe->event_tag;
3304         switch (event_type) {
3305         case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
3306         case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD:
3307                 if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF)
3308                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3309                                         LOG_DISCOVERY,
3310                                         "2546 New FCF found event: "
3311                                         "evt_tag:x%x, fcf_index:x%x\n",
3312                                         acqe_fcoe->event_tag,
3313                                         acqe_fcoe->index);
3314                 else
3315                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3316                                         LOG_DISCOVERY,
3317                                         "2788 FCF parameter modified event: "
3318                                         "evt_tag:x%x, fcf_index:x%x\n",
3319                                         acqe_fcoe->event_tag,
3320                                         acqe_fcoe->index);
3321                 spin_lock_irq(&phba->hbalock);
3322                 if ((phba->fcf.fcf_flag & FCF_SCAN_DONE) ||
3323                     (phba->hba_flag & FCF_DISC_INPROGRESS)) {
3324                         /*
3325                          * If the current FCF is in discovered state or
3326                          * FCF discovery is in progress, do nothing.
3327                          */
3328                         spin_unlock_irq(&phba->hbalock);
3329                         break;
3330                 }
3331
3332                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3333                         /*
3334                          * If fast FCF failover rescan event is pending,
3335                          * do nothing.
3336                          */
3337                         spin_unlock_irq(&phba->hbalock);
3338                         break;
3339                 }
3340                 spin_unlock_irq(&phba->hbalock);
3341
3342                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
3343                     !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
3344                         /*
3345                          * During period of FCF discovery, read the FCF
3346                          * table record indexed by the event to update
3347                          * FCF round robin failover eligible FCF bmask.
3348                          */
3349                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3350                                         LOG_DISCOVERY,
3351                                         "2779 Read new FCF record with "
3352                                         "fcf_index:x%x for updating FCF "
3353                                         "round robin failover bmask\n",
3354                                         acqe_fcoe->index);
3355                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index);
3356                 }
3357
3358                 /* Otherwise, scan the entire FCF table and re-discover SAN */
3359                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3360                                 "2770 Start FCF table scan due to new FCF "
3361                                 "event: evt_tag:x%x, fcf_index:x%x\n",
3362                                 acqe_fcoe->event_tag, acqe_fcoe->index);
3363                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3364                                                      LPFC_FCOE_FCF_GET_FIRST);
3365                 if (rc)
3366                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3367                                         "2547 Issue FCF scan read FCF mailbox "
3368                                         "command failed 0x%x\n", rc);
3369                 break;
3370
3371         case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
3372                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3373                         "2548 FCF Table full count 0x%x tag 0x%x\n",
3374                         bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe),
3375                         acqe_fcoe->event_tag);
3376                 break;
3377
3378         case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
3379                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3380                         "2549 FCF disconnected from network index 0x%x"
3381                         " tag 0x%x\n", acqe_fcoe->index,
3382                         acqe_fcoe->event_tag);
3383                 /* If the event is not for currently used fcf do nothing */
3384                 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index)
3385                         break;
3386                 /* We request port to rediscover the entire FCF table for
3387                  * a fast recovery from case that the current FCF record
3388                  * is no longer valid if we are not in the middle of FCF
3389                  * failover process already.
3390                  */
3391                 spin_lock_irq(&phba->hbalock);
3392                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3393                         spin_unlock_irq(&phba->hbalock);
3394                         /* Update FLOGI FCF failover eligible FCF bmask */
3395                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index);
3396                         break;
3397                 }
3398                 /* Mark the fast failover process in progress */
3399                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3400                 spin_unlock_irq(&phba->hbalock);
3401                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3402                                 "2771 Start FCF fast failover process due to "
3403                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3404                                 "\n", acqe_fcoe->event_tag, acqe_fcoe->index);
3405                 rc = lpfc_sli4_redisc_fcf_table(phba);
3406                 if (rc) {
3407                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3408                                         LOG_DISCOVERY,
3409                                         "2772 Issue FCF rediscover mabilbox "
3410                                         "command failed, fail through to FCF "
3411                                         "dead event\n");
3412                         spin_lock_irq(&phba->hbalock);
3413                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3414                         spin_unlock_irq(&phba->hbalock);
3415                         /*
3416                          * Last resort will fail over by treating this
3417                          * as a link down to FCF registration.
3418                          */
3419                         lpfc_sli4_fcf_dead_failthrough(phba);
3420                 } else
3421                         /* Handling fast FCF failover to a DEAD FCF event
3422                          * is considered equalivant to receiving CVL to all
3423                          * vports.
3424                          */
3425                         lpfc_sli4_perform_all_vport_cvl(phba);
3426                 break;
3427         case LPFC_FCOE_EVENT_TYPE_CVL:
3428                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3429                         "2718 Clear Virtual Link Received for VPI 0x%x"
3430                         " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
3431                 vport = lpfc_find_vport_by_vpid(phba,
3432                                 acqe_fcoe->index - phba->vpi_base);
3433                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3434                 if (!ndlp)
3435                         break;
3436                 active_vlink_present = 0;
3437
3438                 vports = lpfc_create_vport_work_array(phba);
3439                 if (vports) {
3440                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3441                                         i++) {
3442                                 if ((!(vports[i]->fc_flag &
3443                                         FC_VPORT_CVL_RCVD)) &&
3444                                         (vports[i]->port_state > LPFC_FDISC)) {
3445                                         active_vlink_present = 1;
3446                                         break;
3447                                 }
3448                         }
3449                         lpfc_destroy_vport_work_array(phba, vports);
3450                 }
3451
3452                 if (active_vlink_present) {
3453                         /*
3454                          * If there are other active VLinks present,
3455                          * re-instantiate the Vlink using FDISC.
3456                          */
3457                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3458                         shost = lpfc_shost_from_vport(vport);
3459                         spin_lock_irq(shost->host_lock);
3460                         ndlp->nlp_flag |= NLP_DELAY_TMO;
3461                         spin_unlock_irq(shost->host_lock);
3462                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3463                         vport->port_state = LPFC_FDISC;
3464                 } else {
3465                         /*
3466                          * Otherwise, we request port to rediscover
3467                          * the entire FCF table for a fast recovery
3468                          * from possible case that the current FCF
3469                          * is no longer valid if we are not already
3470                          * in the FCF failover process.
3471                          */
3472                         spin_lock_irq(&phba->hbalock);
3473                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3474                                 spin_unlock_irq(&phba->hbalock);
3475                                 break;
3476                         }
3477                         /* Mark the fast failover process in progress */
3478                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3479                         spin_unlock_irq(&phba->hbalock);
3480                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3481                                         LOG_DISCOVERY,
3482                                         "2773 Start FCF fast failover due "
3483                                         "to CVL event: evt_tag:x%x\n",
3484                                         acqe_fcoe->event_tag);
3485                         rc = lpfc_sli4_redisc_fcf_table(phba);
3486                         if (rc) {
3487                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3488                                                 LOG_DISCOVERY,
3489                                                 "2774 Issue FCF rediscover "
3490                                                 "mabilbox command failed, "
3491                                                 "through to CVL event\n");
3492                                 spin_lock_irq(&phba->hbalock);
3493                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3494                                 spin_unlock_irq(&phba->hbalock);
3495                                 /*
3496                                  * Last resort will be re-try on the
3497                                  * the current registered FCF entry.
3498                                  */
3499                                 lpfc_retry_pport_discovery(phba);
3500                         }
3501                 }
3502                 break;
3503         default:
3504                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3505                         "0288 Unknown FCoE event type 0x%x event tag "
3506                         "0x%x\n", event_type, acqe_fcoe->event_tag);
3507                 break;
3508         }
3509 }
3510
3511 /**
3512  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3513  * @phba: pointer to lpfc hba data structure.
3514  * @acqe_link: pointer to the async dcbx completion queue entry.
3515  *
3516  * This routine is to handle the SLI4 asynchronous dcbx event.
3517  **/
3518 static void
3519 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3520                          struct lpfc_acqe_dcbx *acqe_dcbx)
3521 {
3522         phba->fc_eventTag = acqe_dcbx->event_tag;
3523         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3524                         "0290 The SLI4 DCBX asynchronous event is not "
3525                         "handled yet\n");
3526 }
3527
3528 /**
3529  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3530  * @phba: pointer to lpfc hba data structure.
3531  *
3532  * This routine is invoked by the worker thread to process all the pending
3533  * SLI4 asynchronous events.
3534  **/
3535 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3536 {
3537         struct lpfc_cq_event *cq_event;
3538
3539         /* First, declare the async event has been handled */
3540         spin_lock_irq(&phba->hbalock);
3541         phba->hba_flag &= ~ASYNC_EVENT;
3542         spin_unlock_irq(&phba->hbalock);
3543         /* Now, handle all the async events */
3544         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3545                 /* Get the first event from the head of the event queue */
3546                 spin_lock_irq(&phba->hbalock);
3547                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3548                                  cq_event, struct lpfc_cq_event, list);
3549                 spin_unlock_irq(&phba->hbalock);
3550                 /* Process the asynchronous event */
3551                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3552                 case LPFC_TRAILER_CODE_LINK:
3553                         lpfc_sli4_async_link_evt(phba,
3554                                                  &cq_event->cqe.acqe_link);
3555                         break;
3556                 case LPFC_TRAILER_CODE_FCOE:
3557                         lpfc_sli4_async_fcoe_evt(phba,
3558                                                  &cq_event->cqe.acqe_fcoe);
3559                         break;
3560                 case LPFC_TRAILER_CODE_DCBX:
3561                         lpfc_sli4_async_dcbx_evt(phba,
3562                                                  &cq_event->cqe.acqe_dcbx);
3563                         break;
3564                 default:
3565                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3566                                         "1804 Invalid asynchrous event code: "
3567                                         "x%x\n", bf_get(lpfc_trailer_code,
3568                                         &cq_event->cqe.mcqe_cmpl));
3569                         break;
3570                 }
3571                 /* Free the completion event processed to the free pool */
3572                 lpfc_sli4_cq_event_release(phba, cq_event);
3573         }
3574 }
3575
3576 /**
3577  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3578  * @phba: pointer to lpfc hba data structure.
3579  *
3580  * This routine is invoked by the worker thread to process FCF table
3581  * rediscovery pending completion event.
3582  **/
3583 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3584 {
3585         int rc;
3586
3587         spin_lock_irq(&phba->hbalock);
3588         /* Clear FCF rediscovery timeout event */
3589         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3590         /* Clear driver fast failover FCF record flag */
3591         phba->fcf.failover_rec.flag = 0;
3592         /* Set state for FCF fast failover */
3593         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3594         spin_unlock_irq(&phba->hbalock);
3595
3596         /* Scan FCF table from the first entry to re-discover SAN */
3597         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3598                         "2777 Start FCF table scan after FCF "
3599                         "rediscovery quiescent period over\n");
3600         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3601         if (rc)
3602                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3603                                 "2747 Issue FCF scan read FCF mailbox "
3604                                 "command failed 0x%x\n", rc);
3605 }
3606
3607 /**
3608  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3609  * @phba: pointer to lpfc hba data structure.
3610  * @dev_grp: The HBA PCI-Device group number.
3611  *
3612  * This routine is invoked to set up the per HBA PCI-Device group function
3613  * API jump table entries.
3614  *
3615  * Return: 0 if success, otherwise -ENODEV
3616  **/
3617 int
3618 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3619 {
3620         int rc;
3621
3622         /* Set up lpfc PCI-device group */
3623         phba->pci_dev_grp = dev_grp;
3624
3625         /* The LPFC_PCI_DEV_OC uses SLI4 */
3626         if (dev_grp == LPFC_PCI_DEV_OC)
3627                 phba->sli_rev = LPFC_SLI_REV4;
3628
3629         /* Set up device INIT API function jump table */
3630         rc = lpfc_init_api_table_setup(phba, dev_grp);
3631         if (rc)
3632                 return -ENODEV;
3633         /* Set up SCSI API function jump table */
3634         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3635         if (rc)
3636                 return -ENODEV;
3637         /* Set up SLI API function jump table */
3638         rc = lpfc_sli_api_table_setup(phba, dev_grp);
3639         if (rc)
3640                 return -ENODEV;
3641         /* Set up MBOX API function jump table */
3642         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3643         if (rc)
3644                 return -ENODEV;
3645
3646         return 0;
3647 }
3648
3649 /**
3650  * lpfc_log_intr_mode - Log the active interrupt mode
3651  * @phba: pointer to lpfc hba data structure.
3652  * @intr_mode: active interrupt mode adopted.
3653  *
3654  * This routine it invoked to log the currently used active interrupt mode
3655  * to the device.
3656  **/
3657 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3658 {
3659         switch (intr_mode) {
3660         case 0:
3661                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3662                                 "0470 Enable INTx interrupt mode.\n");
3663                 break;
3664         case 1:
3665                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3666                                 "0481 Enabled MSI interrupt mode.\n");
3667                 break;
3668         case 2:
3669                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3670                                 "0480 Enabled MSI-X interrupt mode.\n");
3671                 break;
3672         default:
3673                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3674                                 "0482 Illegal interrupt mode.\n");
3675                 break;
3676         }
3677         return;
3678 }
3679
3680 /**
3681  * lpfc_enable_pci_dev - Enable a generic PCI device.
3682  * @phba: pointer to lpfc hba data structure.
3683  *
3684  * This routine is invoked to enable the PCI device that is common to all
3685  * PCI devices.
3686  *
3687  * Return codes
3688  *      0 - successful
3689  *      other values - error
3690  **/
3691 static int
3692 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3693 {
3694         struct pci_dev *pdev;
3695         int bars;
3696
3697         /* Obtain PCI device reference */
3698         if (!phba->pcidev)
3699                 goto out_error;
3700         else
3701                 pdev = phba->pcidev;
3702         /* Select PCI BARs */
3703         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3704         /* Enable PCI device */
3705         if (pci_enable_device_mem(pdev))
3706                 goto out_error;
3707         /* Request PCI resource for the device */
3708         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3709                 goto out_disable_device;
3710         /* Set up device as PCI master and save state for EEH */
3711         pci_set_master(pdev);
3712         pci_try_set_mwi(pdev);
3713         pci_save_state(pdev);
3714
3715         return 0;
3716
3717 out_disable_device:
3718         pci_disable_device(pdev);
3719 out_error:
3720         return -ENODEV;
3721 }
3722
3723 /**
3724  * lpfc_disable_pci_dev - Disable a generic PCI device.
3725  * @phba: pointer to lpfc hba data structure.
3726  *
3727  * This routine is invoked to disable the PCI device that is common to all
3728  * PCI devices.
3729  **/
3730 static void
3731 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3732 {
3733         struct pci_dev *pdev;
3734         int bars;
3735
3736         /* Obtain PCI device reference */
3737         if (!phba->pcidev)
3738                 return;
3739         else
3740                 pdev = phba->pcidev;
3741         /* Select PCI BARs */
3742         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3743         /* Release PCI resource and disable PCI device */
3744         pci_release_selected_regions(pdev, bars);
3745         pci_disable_device(pdev);
3746         /* Null out PCI private reference to driver */
3747         pci_set_drvdata(pdev, NULL);
3748
3749         return;
3750 }
3751
3752 /**
3753  * lpfc_reset_hba - Reset a hba
3754  * @phba: pointer to lpfc hba data structure.
3755  *
3756  * This routine is invoked to reset a hba device. It brings the HBA
3757  * offline, performs a board restart, and then brings the board back
3758  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3759  * on outstanding mailbox commands.
3760  **/
3761 void
3762 lpfc_reset_hba(struct lpfc_hba *phba)
3763 {
3764         /* If resets are disabled then set error state and return. */
3765         if (!phba->cfg_enable_hba_reset) {
3766                 phba->link_state = LPFC_HBA_ERROR;
3767                 return;
3768         }
3769         lpfc_offline_prep(phba);
3770         lpfc_offline(phba);
3771         lpfc_sli_brdrestart(phba);
3772         lpfc_online(phba);
3773         lpfc_unblock_mgmt_io(phba);
3774 }
3775
3776 /**
3777  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3778  * @phba: pointer to lpfc hba data structure.
3779  *
3780  * This routine is invoked to set up the driver internal resources specific to
3781  * support the SLI-3 HBA device it attached to.
3782  *
3783  * Return codes
3784  *      0 - successful
3785  *      other values - error
3786  **/
3787 static int
3788 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
3789 {
3790         struct lpfc_sli *psli;
3791
3792         /*
3793          * Initialize timers used by driver
3794          */
3795
3796         /* Heartbeat timer */
3797         init_timer(&phba->hb_tmofunc);
3798         phba->hb_tmofunc.function = lpfc_hb_timeout;
3799         phba->hb_tmofunc.data = (unsigned long)phba;
3800
3801         psli = &phba->sli;
3802         /* MBOX heartbeat timer */
3803         init_timer(&psli->mbox_tmo);
3804         psli->mbox_tmo.function = lpfc_mbox_timeout;
3805         psli->mbox_tmo.data = (unsigned long) phba;
3806         /* FCP polling mode timer */
3807         init_timer(&phba->fcp_poll_timer);
3808         phba->fcp_poll_timer.function = lpfc_poll_timeout;
3809         phba->fcp_poll_timer.data = (unsigned long) phba;
3810         /* Fabric block timer */
3811         init_timer(&phba->fabric_block_timer);
3812         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3813         phba->fabric_block_timer.data = (unsigned long) phba;
3814         /* EA polling mode timer */
3815         init_timer(&phba->eratt_poll);
3816         phba->eratt_poll.function = lpfc_poll_eratt;
3817         phba->eratt_poll.data = (unsigned long) phba;
3818
3819         /* Host attention work mask setup */
3820         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
3821         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
3822
3823         /* Get all the module params for configuring this host */
3824         lpfc_get_cfgparam(phba);
3825         /*
3826          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3827          * used to create the sg_dma_buf_pool must be dynamically calculated.
3828          * 2 segments are added since the IOCB needs a command and response bde.
3829          */
3830         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
3831                 sizeof(struct fcp_rsp) +
3832                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
3833
3834         if (phba->cfg_enable_bg) {
3835                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
3836                 phba->cfg_sg_dma_buf_size +=
3837                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
3838         }
3839
3840         /* Also reinitialize the host templates with new values. */
3841         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3842         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3843
3844         phba->max_vpi = LPFC_MAX_VPI;
3845         /* This will be set to correct value after config_port mbox */
3846         phba->max_vports = 0;
3847
3848         /*
3849          * Initialize the SLI Layer to run with lpfc HBAs.
3850          */
3851         lpfc_sli_setup(phba);
3852         lpfc_sli_queue_setup(phba);
3853
3854         /* Allocate device driver memory */
3855         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
3856                 return -ENOMEM;
3857
3858         return 0;
3859 }
3860
3861 /**
3862  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3863  * @phba: pointer to lpfc hba data structure.
3864  *
3865  * This routine is invoked to unset the driver internal resources set up
3866  * specific for supporting the SLI-3 HBA device it attached to.
3867  **/
3868 static void
3869 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
3870 {
3871         /* Free device driver memory allocated */
3872         lpfc_mem_free_all(phba);
3873
3874         return;
3875 }
3876
3877 /**
3878  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3879  * @phba: pointer to lpfc hba data structure.
3880  *
3881  * This routine is invoked to set up the driver internal resources specific to
3882  * support the SLI-4 HBA device it attached to.
3883  *
3884  * Return codes
3885  *      0 - successful
3886  *      other values - error
3887  **/
3888 static int
3889 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3890 {
3891         struct lpfc_sli *psli;
3892         LPFC_MBOXQ_t *mboxq;
3893         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
3894         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
3895         struct lpfc_mqe *mqe;
3896         int longs;
3897
3898         /* Before proceed, wait for POST done and device ready */
3899         rc = lpfc_sli4_post_status_check(phba);
3900         if (rc)
3901                 return -ENODEV;
3902
3903         /*
3904          * Initialize timers used by driver
3905          */
3906
3907         /* Heartbeat timer */
3908         init_timer(&phba->hb_tmofunc);
3909         phba->hb_tmofunc.function = lpfc_hb_timeout;
3910         phba->hb_tmofunc.data = (unsigned long)phba;
3911
3912         psli = &phba->sli;
3913         /* MBOX heartbeat timer */
3914         init_timer(&psli->mbox_tmo);
3915         psli->mbox_tmo.function = lpfc_mbox_timeout;
3916         psli->mbox_tmo.data = (unsigned long) phba;
3917         /* Fabric block timer */
3918         init_timer(&phba->fabric_block_timer);
3919         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3920         phba->fabric_block_timer.data = (unsigned long) phba;
3921         /* EA polling mode timer */
3922         init_timer(&phba->eratt_poll);
3923         phba->eratt_poll.function = lpfc_poll_eratt;
3924         phba->eratt_poll.data = (unsigned long) phba;
3925         /* FCF rediscover timer */
3926         init_timer(&phba->fcf.redisc_wait);
3927         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
3928         phba->fcf.redisc_wait.data = (unsigned long)phba;
3929
3930         /*
3931          * We need to do a READ_CONFIG mailbox command here before
3932          * calling lpfc_get_cfgparam. For VFs this will report the
3933          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3934          * All of the resources allocated
3935          * for this Port are tied to these values.
3936          */
3937         /* Get all the module params for configuring this host */
3938         lpfc_get_cfgparam(phba);
3939         phba->max_vpi = LPFC_MAX_VPI;
3940         /* This will be set to correct value after the read_config mbox */
3941         phba->max_vports = 0;
3942
3943         /* Program the default value of vlan_id and fc_map */
3944         phba->valid_vlan = 0;
3945         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
3946         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
3947         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3948
3949         /*
3950          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3951          * used to create the sg_dma_buf_pool must be dynamically calculated.
3952          * 2 segments are added since the IOCB needs a command and response bde.
3953          * To insure that the scsi sgl does not cross a 4k page boundary only
3954          * sgl sizes of must be a power of 2.
3955          */
3956         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
3957                     ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
3958         /* Feature Level 1 hardware is limited to 2 pages */
3959         if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) ==
3960              LPFC_SLI_INTF_FEATURELEVEL1_1))
3961                 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
3962         else
3963                 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
3964         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
3965              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
3966              dma_buf_size = dma_buf_size << 1)
3967                 ;
3968         if (dma_buf_size == max_buf_size)
3969                 phba->cfg_sg_seg_cnt = (dma_buf_size -
3970                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
3971                         (2 * sizeof(struct sli4_sge))) /
3972                                 sizeof(struct sli4_sge);
3973         phba->cfg_sg_dma_buf_size = dma_buf_size;
3974
3975         /* Initialize buffer queue management fields */
3976         hbq_count = lpfc_sli_hbq_count();
3977         for (i = 0; i < hbq_count; ++i)
3978                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
3979         INIT_LIST_HEAD(&phba->rb_pend_list);
3980         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
3981         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3982
3983         /*
3984          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
3985          */
3986         /* Initialize the Abort scsi buffer list used by driver */
3987         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
3988         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
3989         /* This abort list used by worker thread */
3990         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3991
3992         /*
3993          * Initialize dirver internal slow-path work queues
3994          */
3995
3996         /* Driver internel slow-path CQ Event pool */
3997         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
3998         /* Response IOCB work queue list */
3999         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4000         /* Asynchronous event CQ Event work queue list */
4001         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4002         /* Fast-path XRI aborted CQ Event work queue list */
4003         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4004         /* Slow-path XRI aborted CQ Event work queue list */
4005         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4006         /* Receive queue CQ Event work queue list */
4007         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4008
4009         /* Initialize the driver internal SLI layer lists. */
4010         lpfc_sli_setup(phba);
4011         lpfc_sli_queue_setup(phba);
4012
4013         /* Allocate device driver memory */
4014         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4015         if (rc)
4016                 return -ENOMEM;
4017
4018         /* Create the bootstrap mailbox command */
4019         rc = lpfc_create_bootstrap_mbox(phba);
4020         if (unlikely(rc))
4021                 goto out_free_mem;
4022
4023         /* Set up the host's endian order with the device. */
4024         rc = lpfc_setup_endian_order(phba);
4025         if (unlikely(rc))
4026                 goto out_free_bsmbx;
4027
4028         rc = lpfc_sli4_fw_cfg_check(phba);
4029         if (unlikely(rc))
4030                 goto out_free_bsmbx;
4031
4032         /* Set up the hba's configuration parameters. */
4033         rc = lpfc_sli4_read_config(phba);
4034         if (unlikely(rc))
4035                 goto out_free_bsmbx;
4036
4037         /* Perform a function reset */
4038         rc = lpfc_pci_function_reset(phba);
4039         if (unlikely(rc))
4040                 goto out_free_bsmbx;
4041
4042         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4043                                                        GFP_KERNEL);
4044         if (!mboxq) {
4045                 rc = -ENOMEM;
4046                 goto out_free_bsmbx;
4047         }
4048
4049         /* Get the Supported Pages. It is always available. */
4050         lpfc_supported_pages(mboxq);
4051         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4052         if (unlikely(rc)) {
4053                 rc = -EIO;
4054                 mempool_free(mboxq, phba->mbox_mem_pool);
4055                 goto out_free_bsmbx;
4056         }
4057
4058         mqe = &mboxq->u.mqe;
4059         memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4060                LPFC_MAX_SUPPORTED_PAGES);
4061         for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4062                 switch (pn_page[i]) {
4063                 case LPFC_SLI4_PARAMETERS:
4064                         phba->sli4_hba.pc_sli4_params.supported = 1;
4065                         break;
4066                 default:
4067                         break;
4068                 }
4069         }
4070
4071         /* Read the port's SLI4 Parameters capabilities if supported. */
4072         if (phba->sli4_hba.pc_sli4_params.supported)
4073                 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4074         mempool_free(mboxq, phba->mbox_mem_pool);
4075         if (rc) {
4076                 rc = -EIO;
4077                 goto out_free_bsmbx;
4078         }
4079         /* Create all the SLI4 queues */
4080         rc = lpfc_sli4_queue_create(phba);
4081         if (rc)
4082                 goto out_free_bsmbx;
4083
4084         /* Create driver internal CQE event pool */
4085         rc = lpfc_sli4_cq_event_pool_create(phba);
4086         if (rc)
4087                 goto out_destroy_queue;
4088
4089         /* Initialize and populate the iocb list per host */
4090         rc = lpfc_init_sgl_list(phba);
4091         if (rc) {
4092                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4093                                 "1400 Failed to initialize sgl list.\n");
4094                 goto out_destroy_cq_event_pool;
4095         }
4096         rc = lpfc_init_active_sgl_array(phba);
4097         if (rc) {
4098                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4099                                 "1430 Failed to initialize sgl list.\n");
4100                 goto out_free_sgl_list;
4101         }
4102
4103         rc = lpfc_sli4_init_rpi_hdrs(phba);
4104         if (rc) {
4105                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4106                                 "1432 Failed to initialize rpi headers.\n");
4107                 goto out_free_active_sgl;
4108         }
4109
4110         /* Allocate eligible FCF bmask memory for FCF round robin failover */
4111         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4112         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4113                                          GFP_KERNEL);
4114         if (!phba->fcf.fcf_rr_bmask) {
4115                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4116                                 "2759 Failed allocate memory for FCF round "
4117                                 "robin failover bmask\n");
4118                 goto out_remove_rpi_hdrs;
4119         }
4120
4121         phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4122                                     phba->cfg_fcp_eq_count), GFP_KERNEL);
4123         if (!phba->sli4_hba.fcp_eq_hdl) {
4124                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4125                                 "2572 Failed allocate memory for fast-path "
4126                                 "per-EQ handle array\n");
4127                 goto out_free_fcf_rr_bmask;
4128         }
4129
4130         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4131                                       phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4132         if (!phba->sli4_hba.msix_entries) {
4133                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4134                                 "2573 Failed allocate memory for msi-x "
4135                                 "interrupt vector entries\n");
4136                 goto out_free_fcp_eq_hdl;
4137         }
4138
4139         return rc;
4140
4141 out_free_fcp_eq_hdl:
4142         kfree(phba->sli4_hba.fcp_eq_hdl);
4143 out_free_fcf_rr_bmask:
4144         kfree(phba->fcf.fcf_rr_bmask);
4145 out_remove_rpi_hdrs:
4146         lpfc_sli4_remove_rpi_hdrs(phba);
4147 out_free_active_sgl:
4148         lpfc_free_active_sgl(phba);
4149 out_free_sgl_list:
4150         lpfc_free_sgl_list(phba);
4151 out_destroy_cq_event_pool:
4152         lpfc_sli4_cq_event_pool_destroy(phba);
4153 out_destroy_queue:
4154         lpfc_sli4_queue_destroy(phba);
4155 out_free_bsmbx:
4156         lpfc_destroy_bootstrap_mbox(phba);
4157 out_free_mem:
4158         lpfc_mem_free(phba);
4159         return rc;
4160 }
4161
4162 /**
4163  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4164  * @phba: pointer to lpfc hba data structure.
4165  *
4166  * This routine is invoked to unset the driver internal resources set up
4167  * specific for supporting the SLI-4 HBA device it attached to.
4168  **/
4169 static void
4170 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4171 {
4172         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4173
4174         /* unregister default FCFI from the HBA */
4175         lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
4176
4177         /* Free the default FCR table */
4178         lpfc_sli_remove_dflt_fcf(phba);
4179
4180         /* Free memory allocated for msi-x interrupt vector entries */
4181         kfree(phba->sli4_hba.msix_entries);
4182
4183         /* Free memory allocated for fast-path work queue handles */
4184         kfree(phba->sli4_hba.fcp_eq_hdl);
4185
4186         /* Free the allocated rpi headers. */
4187         lpfc_sli4_remove_rpi_hdrs(phba);
4188         lpfc_sli4_remove_rpis(phba);
4189
4190         /* Free eligible FCF index bmask */
4191         kfree(phba->fcf.fcf_rr_bmask);
4192
4193         /* Free the ELS sgl list */
4194         lpfc_free_active_sgl(phba);
4195         lpfc_free_sgl_list(phba);
4196
4197         /* Free the SCSI sgl management array */
4198         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4199
4200         /* Free the SLI4 queues */
4201         lpfc_sli4_queue_destroy(phba);
4202
4203         /* Free the completion queue EQ event pool */
4204         lpfc_sli4_cq_event_release_all(phba);
4205         lpfc_sli4_cq_event_pool_destroy(phba);
4206
4207         /* Reset SLI4 HBA FCoE function */
4208         lpfc_pci_function_reset(phba);
4209
4210         /* Free the bsmbx region. */
4211         lpfc_destroy_bootstrap_mbox(phba);
4212
4213         /* Free the SLI Layer memory with SLI4 HBAs */
4214         lpfc_mem_free_all(phba);
4215
4216         /* Free the current connect table */
4217         list_for_each_entry_safe(conn_entry, next_conn_entry,
4218                 &phba->fcf_conn_rec_list, list) {
4219                 list_del_init(&conn_entry->list);
4220                 kfree(conn_entry);
4221         }
4222
4223         return;
4224 }
4225
4226 /**
4227  * lpfc_init_api_table_setup - Set up init api fucntion jump table
4228  * @phba: The hba struct for which this call is being executed.
4229  * @dev_grp: The HBA PCI-Device group number.
4230  *
4231  * This routine sets up the device INIT interface API function jump table
4232  * in @phba struct.
4233  *
4234  * Returns: 0 - success, -ENODEV - failure.
4235  **/
4236 int
4237 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4238 {
4239         phba->lpfc_hba_init_link = lpfc_hba_init_link;
4240         phba->lpfc_hba_down_link = lpfc_hba_down_link;
4241         switch (dev_grp) {
4242         case LPFC_PCI_DEV_LP:
4243                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4244                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4245                 phba->lpfc_stop_port = lpfc_stop_port_s3;
4246                 break;
4247         case LPFC_PCI_DEV_OC:
4248                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4249                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4250                 phba->lpfc_stop_port = lpfc_stop_port_s4;
4251                 break;
4252         default:
4253                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4254                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
4255                                 dev_grp);
4256                 return -ENODEV;
4257                 break;
4258         }
4259         return 0;
4260 }
4261
4262 /**
4263  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4264  * @phba: pointer to lpfc hba data structure.
4265  *
4266  * This routine is invoked to set up the driver internal resources before the
4267  * device specific resource setup to support the HBA device it attached to.
4268  *
4269  * Return codes
4270  *      0 - successful
4271  *      other values - error
4272  **/
4273 static int
4274 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4275 {
4276         /*
4277          * Driver resources common to all SLI revisions
4278          */
4279         atomic_set(&phba->fast_event_count, 0);
4280         spin_lock_init(&phba->hbalock);
4281
4282         /* Initialize ndlp management spinlock */
4283         spin_lock_init(&phba->ndlp_lock);
4284
4285         INIT_LIST_HEAD(&phba->port_list);
4286         INIT_LIST_HEAD(&phba->work_list);
4287         init_waitqueue_head(&phba->wait_4_mlo_m_q);
4288
4289         /* Initialize the wait queue head for the kernel thread */
4290         init_waitqueue_head(&phba->work_waitq);
4291
4292         /* Initialize the scsi buffer list used by driver for scsi IO */
4293         spin_lock_init(&phba->scsi_buf_list_lock);
4294         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4295
4296         /* Initialize the fabric iocb list */
4297         INIT_LIST_HEAD(&phba->fabric_iocb_list);
4298
4299         /* Initialize list to save ELS buffers */
4300         INIT_LIST_HEAD(&phba->elsbuf);
4301
4302         /* Initialize FCF connection rec list */
4303         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4304
4305         return 0;
4306 }
4307
4308 /**
4309  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4310  * @phba: pointer to lpfc hba data structure.
4311  *
4312  * This routine is invoked to set up the driver internal resources after the
4313  * device specific resource setup to support the HBA device it attached to.
4314  *
4315  * Return codes
4316  *      0 - successful
4317  *      other values - error
4318  **/
4319 static int
4320 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4321 {
4322         int error;
4323
4324         /* Startup the kernel thread for this host adapter. */
4325         phba->worker_thread = kthread_run(lpfc_do_work, phba,
4326                                           "lpfc_worker_%d", phba->brd_no);
4327         if (IS_ERR(phba->worker_thread)) {
4328                 error = PTR_ERR(phba->worker_thread);
4329                 return error;
4330         }
4331
4332         return 0;
4333 }
4334
4335 /**
4336  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4337  * @phba: pointer to lpfc hba data structure.
4338  *
4339  * This routine is invoked to unset the driver internal resources set up after
4340  * the device specific resource setup for supporting the HBA device it
4341  * attached to.
4342  **/
4343 static void
4344 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4345 {
4346         /* Stop kernel worker thread */
4347         kthread_stop(phba->worker_thread);
4348 }
4349
4350 /**
4351  * lpfc_free_iocb_list - Free iocb list.
4352  * @phba: pointer to lpfc hba data structure.
4353  *
4354  * This routine is invoked to free the driver's IOCB list and memory.
4355  **/
4356 static void
4357 lpfc_free_iocb_list(struct lpfc_hba *phba)
4358 {
4359         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4360
4361         spin_lock_irq(&phba->hbalock);
4362         list_for_each_entry_safe(iocbq_entry, iocbq_next,
4363                                  &phba->lpfc_iocb_list, list) {
4364                 list_del(&iocbq_entry->list);
4365                 kfree(iocbq_entry);
4366                 phba->total_iocbq_bufs--;
4367         }
4368         spin_unlock_irq(&phba->hbalock);
4369
4370         return;
4371 }
4372
4373 /**
4374  * lpfc_init_iocb_list - Allocate and initialize iocb list.
4375  * @phba: pointer to lpfc hba data structure.
4376  *
4377  * This routine is invoked to allocate and initizlize the driver's IOCB
4378  * list and set up the IOCB tag array accordingly.
4379  *
4380  * Return codes
4381  *      0 - successful
4382  *      other values - error
4383  **/
4384 static int
4385 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4386 {
4387         struct lpfc_iocbq *iocbq_entry = NULL;
4388         uint16_t iotag;
4389         int i;
4390
4391         /* Initialize and populate the iocb list per host.  */
4392         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4393         for (i = 0; i < iocb_count; i++) {
4394                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4395                 if (iocbq_entry == NULL) {
4396                         printk(KERN_ERR "%s: only allocated %d iocbs of "
4397                                 "expected %d count. Unloading driver.\n",
4398                                 __func__, i, LPFC_IOCB_LIST_CNT);
4399                         goto out_free_iocbq;
4400                 }
4401
4402                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4403                 if (iotag == 0) {
4404                         kfree(iocbq_entry);
4405                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
4406                                 "Unloading driver.\n", __func__);
4407                         goto out_free_iocbq;
4408                 }
4409                 iocbq_entry->sli4_xritag = NO_XRI;
4410
4411                 spin_lock_irq(&phba->hbalock);
4412                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4413                 phba->total_iocbq_bufs++;
4414                 spin_unlock_irq(&phba->hbalock);
4415         }
4416
4417         return 0;
4418
4419 out_free_iocbq:
4420         lpfc_free_iocb_list(phba);
4421
4422         return -ENOMEM;
4423 }
4424
4425 /**
4426  * lpfc_free_sgl_list - Free sgl list.
4427  * @phba: pointer to lpfc hba data structure.
4428  *
4429  * This routine is invoked to free the driver's sgl list and memory.
4430  **/
4431 static void
4432 lpfc_free_sgl_list(struct lpfc_hba *phba)
4433 {
4434         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4435         LIST_HEAD(sglq_list);
4436         int rc = 0;
4437
4438         spin_lock_irq(&phba->hbalock);
4439         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4440         spin_unlock_irq(&phba->hbalock);
4441
4442         list_for_each_entry_safe(sglq_entry, sglq_next,
4443                                  &sglq_list, list) {
4444                 list_del(&sglq_entry->list);
4445                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4446                 kfree(sglq_entry);
4447                 phba->sli4_hba.total_sglq_bufs--;
4448         }
4449         rc = lpfc_sli4_remove_all_sgl_pages(phba);
4450         if (rc) {
4451                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4452                         "2005 Unable to deregister pages from HBA: %x\n", rc);
4453         }
4454         kfree(phba->sli4_hba.lpfc_els_sgl_array);
4455 }
4456
4457 /**
4458  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4459  * @phba: pointer to lpfc hba data structure.
4460  *
4461  * This routine is invoked to allocate the driver's active sgl memory.
4462  * This array will hold the sglq_entry's for active IOs.
4463  **/
4464 static int
4465 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4466 {
4467         int size;
4468         size = sizeof(struct lpfc_sglq *);
4469         size *= phba->sli4_hba.max_cfg_param.max_xri;
4470
4471         phba->sli4_hba.lpfc_sglq_active_list =
4472                 kzalloc(size, GFP_KERNEL);
4473         if (!phba->sli4_hba.lpfc_sglq_active_list)
4474                 return -ENOMEM;
4475         return 0;
4476 }
4477
4478 /**
4479  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4480  * @phba: pointer to lpfc hba data structure.
4481  *
4482  * This routine is invoked to walk through the array of active sglq entries
4483  * and free all of the resources.
4484  * This is just a place holder for now.
4485  **/
4486 static void
4487 lpfc_free_active_sgl(struct lpfc_hba *phba)
4488 {
4489         kfree(phba->sli4_hba.lpfc_sglq_active_list);
4490 }
4491
4492 /**
4493  * lpfc_init_sgl_list - Allocate and initialize sgl list.
4494  * @phba: pointer to lpfc hba data structure.
4495  *
4496  * This routine is invoked to allocate and initizlize the driver's sgl
4497  * list and set up the sgl xritag tag array accordingly.
4498  *
4499  * Return codes
4500  *      0 - successful
4501  *      other values - error
4502  **/
4503 static int
4504 lpfc_init_sgl_list(struct lpfc_hba *phba)
4505 {
4506         struct lpfc_sglq *sglq_entry = NULL;
4507         int i;
4508         int els_xri_cnt;
4509
4510         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4511         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4512                                 "2400 lpfc_init_sgl_list els %d.\n",
4513                                 els_xri_cnt);
4514         /* Initialize and populate the sglq list per host/VF. */
4515         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4516         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4517
4518         /* Sanity check on XRI management */
4519         if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4520                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4521                                 "2562 No room left for SCSI XRI allocation: "
4522                                 "max_xri=%d, els_xri=%d\n",
4523                                 phba->sli4_hba.max_cfg_param.max_xri,
4524                                 els_xri_cnt);
4525                 return -ENOMEM;
4526         }
4527
4528         /* Allocate memory for the ELS XRI management array */
4529         phba->sli4_hba.lpfc_els_sgl_array =
4530                         kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4531                         GFP_KERNEL);
4532
4533         if (!phba->sli4_hba.lpfc_els_sgl_array) {
4534                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4535                                 "2401 Failed to allocate memory for ELS "
4536                                 "XRI management array of size %d.\n",
4537                                 els_xri_cnt);
4538                 return -ENOMEM;
4539         }
4540
4541         /* Keep the SCSI XRI into the XRI management array */
4542         phba->sli4_hba.scsi_xri_max =
4543                         phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4544         phba->sli4_hba.scsi_xri_cnt = 0;
4545
4546         phba->sli4_hba.lpfc_scsi_psb_array =
4547                         kzalloc((sizeof(struct lpfc_scsi_buf *) *
4548                         phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4549
4550         if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4551                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4552                                 "2563 Failed to allocate memory for SCSI "
4553                                 "XRI management array of size %d.\n",
4554                                 phba->sli4_hba.scsi_xri_max);
4555                 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4556                 return -ENOMEM;
4557         }
4558
4559         for (i = 0; i < els_xri_cnt; i++) {
4560                 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4561                 if (sglq_entry == NULL) {
4562                         printk(KERN_ERR "%s: only allocated %d sgls of "
4563                                 "expected %d count. Unloading driver.\n",
4564                                 __func__, i, els_xri_cnt);
4565                         goto out_free_mem;
4566                 }
4567
4568                 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4569                 if (sglq_entry->sli4_xritag == NO_XRI) {
4570                         kfree(sglq_entry);
4571                         printk(KERN_ERR "%s: failed to allocate XRI.\n"
4572                                 "Unloading driver.\n", __func__);
4573                         goto out_free_mem;
4574                 }
4575                 sglq_entry->buff_type = GEN_BUFF_TYPE;
4576                 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4577                 if (sglq_entry->virt == NULL) {
4578                         kfree(sglq_entry);
4579                         printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4580                                 "Unloading driver.\n", __func__);
4581                         goto out_free_mem;
4582                 }
4583                 sglq_entry->sgl = sglq_entry->virt;
4584                 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4585
4586                 /* The list order is used by later block SGL registraton */
4587                 spin_lock_irq(&phba->hbalock);
4588                 sglq_entry->state = SGL_FREED;
4589                 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4590                 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4591                 phba->sli4_hba.total_sglq_bufs++;
4592                 spin_unlock_irq(&phba->hbalock);
4593         }
4594         return 0;
4595
4596 out_free_mem:
4597         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4598         lpfc_free_sgl_list(phba);
4599         return -ENOMEM;
4600 }
4601
4602 /**
4603  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4604  * @phba: pointer to lpfc hba data structure.
4605  *
4606  * This routine is invoked to post rpi header templates to the
4607  * HBA consistent with the SLI-4 interface spec.  This routine
4608  * posts a PAGE_SIZE memory region to the port to hold up to
4609  * PAGE_SIZE modulo 64 rpi context headers.
4610  * No locks are held here because this is an initialization routine
4611  * called only from probe or lpfc_online when interrupts are not
4612  * enabled and the driver is reinitializing the device.
4613  *
4614  * Return codes
4615  *      0 - successful
4616  *      ENOMEM - No availble memory
4617  *      EIO - The mailbox failed to complete successfully.
4618  **/
4619 int
4620 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4621 {
4622         int rc = 0;
4623         int longs;
4624         uint16_t rpi_count;
4625         struct lpfc_rpi_hdr *rpi_hdr;
4626
4627         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4628
4629         /*
4630          * Provision an rpi bitmask range for discovery. The total count
4631          * is the difference between max and base + 1.
4632          */
4633         rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4634                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4635
4636         longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4637         phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4638                                            GFP_KERNEL);
4639         if (!phba->sli4_hba.rpi_bmask)
4640                 return -ENOMEM;
4641
4642         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4643         if (!rpi_hdr) {
4644                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4645                                 "0391 Error during rpi post operation\n");
4646                 lpfc_sli4_remove_rpis(phba);
4647                 rc = -ENODEV;
4648         }
4649
4650         return rc;
4651 }
4652
4653 /**
4654  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4655  * @phba: pointer to lpfc hba data structure.
4656  *
4657  * This routine is invoked to allocate a single 4KB memory region to
4658  * support rpis and stores them in the phba.  This single region
4659  * provides support for up to 64 rpis.  The region is used globally
4660  * by the device.
4661  *
4662  * Returns:
4663  *   A valid rpi hdr on success.
4664  *   A NULL pointer on any failure.
4665  **/
4666 struct lpfc_rpi_hdr *
4667 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4668 {
4669         uint16_t rpi_limit, curr_rpi_range;
4670         struct lpfc_dmabuf *dmabuf;
4671         struct lpfc_rpi_hdr *rpi_hdr;
4672
4673         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4674                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4675
4676         spin_lock_irq(&phba->hbalock);
4677         curr_rpi_range = phba->sli4_hba.next_rpi;
4678         spin_unlock_irq(&phba->hbalock);
4679
4680         /*
4681          * The port has a limited number of rpis. The increment here
4682          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4683          * and to allow the full max_rpi range per port.
4684          */
4685         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4686                 return NULL;
4687
4688         /*
4689          * First allocate the protocol header region for the port.  The
4690          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4691          */
4692         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4693         if (!dmabuf)
4694                 return NULL;
4695
4696         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4697                                           LPFC_HDR_TEMPLATE_SIZE,
4698                                           &dmabuf->phys,
4699                                           GFP_KERNEL);
4700         if (!dmabuf->virt) {
4701                 rpi_hdr = NULL;
4702                 goto err_free_dmabuf;
4703         }
4704
4705         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4706         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4707                 rpi_hdr = NULL;
4708                 goto err_free_coherent;
4709         }
4710
4711         /* Save the rpi header data for cleanup later. */
4712         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4713         if (!rpi_hdr)
4714                 goto err_free_coherent;
4715
4716         rpi_hdr->dmabuf = dmabuf;
4717         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4718         rpi_hdr->page_count = 1;
4719         spin_lock_irq(&phba->hbalock);
4720         rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4721         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4722
4723         /*
4724          * The next_rpi stores the next module-64 rpi value to post
4725          * in any subsequent rpi memory region postings.
4726          */
4727         phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4728         spin_unlock_irq(&phba->hbalock);
4729         return rpi_hdr;
4730
4731  err_free_coherent:
4732         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4733                           dmabuf->virt, dmabuf->phys);
4734  err_free_dmabuf:
4735         kfree(dmabuf);
4736         return NULL;
4737 }
4738
4739 /**
4740  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4741  * @phba: pointer to lpfc hba data structure.
4742  *
4743  * This routine is invoked to remove all memory resources allocated
4744  * to support rpis. This routine presumes the caller has released all
4745  * rpis consumed by fabric or port logins and is prepared to have
4746  * the header pages removed.
4747  **/
4748 void
4749 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4750 {
4751         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4752
4753         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4754                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4755                 list_del(&rpi_hdr->list);
4756                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4757                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4758                 kfree(rpi_hdr->dmabuf);
4759                 kfree(rpi_hdr);
4760         }
4761
4762         phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4763         memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4764 }
4765
4766 /**
4767  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4768  * @pdev: pointer to pci device data structure.
4769  *
4770  * This routine is invoked to allocate the driver hba data structure for an
4771  * HBA device. If the allocation is successful, the phba reference to the
4772  * PCI device data structure is set.
4773  *
4774  * Return codes
4775  *      pointer to @phba - successful
4776  *      NULL - error
4777  **/
4778 static struct lpfc_hba *
4779 lpfc_hba_alloc(struct pci_dev *pdev)
4780 {
4781         struct lpfc_hba *phba;
4782
4783         /* Allocate memory for HBA structure */
4784         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
4785         if (!phba) {
4786                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
4787                 return NULL;
4788         }
4789
4790         /* Set reference to PCI device in HBA structure */
4791         phba->pcidev = pdev;
4792
4793         /* Assign an unused board number */
4794         phba->brd_no = lpfc_get_instance();
4795         if (phba->brd_no < 0) {
4796                 kfree(phba);
4797                 return NULL;
4798         }
4799
4800         spin_lock_init(&phba->ct_ev_lock);
4801         INIT_LIST_HEAD(&phba->ct_ev_waiters);
4802
4803         return phba;
4804 }
4805
4806 /**
4807  * lpfc_hba_free - Free driver hba data structure with a device.
4808  * @phba: pointer to lpfc hba data structure.
4809  *
4810  * This routine is invoked to free the driver hba data structure with an
4811  * HBA device.
4812  **/
4813 static void
4814 lpfc_hba_free(struct lpfc_hba *phba)
4815 {
4816         /* Release the driver assigned board number */
4817         idr_remove(&lpfc_hba_index, phba->brd_no);
4818
4819         kfree(phba);
4820         return;
4821 }
4822
4823 /**
4824  * lpfc_create_shost - Create hba physical port with associated scsi host.
4825  * @phba: pointer to lpfc hba data structure.
4826  *
4827  * This routine is invoked to create HBA physical port and associate a SCSI
4828  * host with it.
4829  *
4830  * Return codes
4831  *      0 - successful
4832  *      other values - error
4833  **/
4834 static int
4835 lpfc_create_shost(struct lpfc_hba *phba)
4836 {
4837         struct lpfc_vport *vport;
4838         struct Scsi_Host  *shost;
4839
4840         /* Initialize HBA FC structure */
4841         phba->fc_edtov = FF_DEF_EDTOV;
4842         phba->fc_ratov = FF_DEF_RATOV;
4843         phba->fc_altov = FF_DEF_ALTOV;
4844         phba->fc_arbtov = FF_DEF_ARBTOV;
4845
4846         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
4847         if (!vport)
4848                 return -ENODEV;
4849
4850         shost = lpfc_shost_from_vport(vport);
4851         phba->pport = vport;
4852         lpfc_debugfs_initialize(vport);
4853         /* Put reference to SCSI host to driver's device private data */
4854         pci_set_drvdata(phba->pcidev, shost);
4855
4856         return 0;
4857 }
4858
4859 /**
4860  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4861  * @phba: pointer to lpfc hba data structure.
4862  *
4863  * This routine is invoked to destroy HBA physical port and the associated
4864  * SCSI host.
4865  **/
4866 static void
4867 lpfc_destroy_shost(struct lpfc_hba *phba)
4868 {
4869         struct lpfc_vport *vport = phba->pport;
4870
4871         /* Destroy physical port that associated with the SCSI host */
4872         destroy_port(vport);
4873
4874         return;
4875 }
4876
4877 /**
4878  * lpfc_setup_bg - Setup Block guard structures and debug areas.
4879  * @phba: pointer to lpfc hba data structure.
4880  * @shost: the shost to be used to detect Block guard settings.
4881  *
4882  * This routine sets up the local Block guard protocol settings for @shost.
4883  * This routine also allocates memory for debugging bg buffers.
4884  **/
4885 static void
4886 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
4887 {
4888         int pagecnt = 10;
4889         if (lpfc_prot_mask && lpfc_prot_guard) {
4890                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4891                                 "1478 Registering BlockGuard with the "
4892                                 "SCSI layer\n");
4893                 scsi_host_set_prot(shost, lpfc_prot_mask);
4894                 scsi_host_set_guard(shost, lpfc_prot_guard);
4895         }
4896         if (!_dump_buf_data) {
4897                 while (pagecnt) {
4898                         spin_lock_init(&_dump_buf_lock);
4899                         _dump_buf_data =
4900                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4901                         if (_dump_buf_data) {
4902                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4903                                         "9043 BLKGRD: allocated %d pages for "
4904                                        "_dump_buf_data at 0x%p\n",
4905                                        (1 << pagecnt), _dump_buf_data);
4906                                 _dump_buf_data_order = pagecnt;
4907                                 memset(_dump_buf_data, 0,
4908                                        ((1 << PAGE_SHIFT) << pagecnt));
4909                                 break;
4910                         } else
4911                                 --pagecnt;
4912                 }
4913                 if (!_dump_buf_data_order)
4914                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4915                                 "9044 BLKGRD: ERROR unable to allocate "
4916                                "memory for hexdump\n");
4917         } else
4918                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4919                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4920                        "\n", _dump_buf_data);
4921         if (!_dump_buf_dif) {
4922                 while (pagecnt) {
4923                         _dump_buf_dif =
4924                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4925                         if (_dump_buf_dif) {
4926                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4927                                         "9046 BLKGRD: allocated %d pages for "
4928                                        "_dump_buf_dif at 0x%p\n",
4929                                        (1 << pagecnt), _dump_buf_dif);
4930                                 _dump_buf_dif_order = pagecnt;
4931                                 memset(_dump_buf_dif, 0,
4932                                        ((1 << PAGE_SHIFT) << pagecnt));
4933                                 break;
4934                         } else
4935                                 --pagecnt;
4936                 }
4937                 if (!_dump_buf_dif_order)
4938                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4939                         "9047 BLKGRD: ERROR unable to allocate "
4940                                "memory for hexdump\n");
4941         } else
4942                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4943                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
4944                        _dump_buf_dif);
4945 }
4946
4947 /**
4948  * lpfc_post_init_setup - Perform necessary device post initialization setup.
4949  * @phba: pointer to lpfc hba data structure.
4950  *
4951  * This routine is invoked to perform all the necessary post initialization
4952  * setup for the device.
4953  **/
4954 static void
4955 lpfc_post_init_setup(struct lpfc_hba *phba)
4956 {
4957         struct Scsi_Host  *shost;
4958         struct lpfc_adapter_event_header adapter_event;
4959
4960         /* Get the default values for Model Name and Description */
4961         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
4962
4963         /*
4964          * hba setup may have changed the hba_queue_depth so we need to
4965          * adjust the value of can_queue.
4966          */
4967         shost = pci_get_drvdata(phba->pcidev);
4968         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4969         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4970                 lpfc_setup_bg(phba, shost);
4971
4972         lpfc_host_attrib_init(shost);
4973
4974         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
4975                 spin_lock_irq(shost->host_lock);
4976                 lpfc_poll_start_timer(phba);
4977                 spin_unlock_irq(shost->host_lock);
4978         }
4979
4980         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4981                         "0428 Perform SCSI scan\n");
4982         /* Send board arrival event to upper layer */
4983         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
4984         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
4985         fc_host_post_vendor_event(shost, fc_get_event_number(),
4986                                   sizeof(adapter_event),
4987                                   (char *) &adapter_event,
4988                                   LPFC_NL_VENDOR_ID);
4989         return;
4990 }
4991
4992 /**
4993  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
4994  * @phba: pointer to lpfc hba data structure.
4995  *
4996  * This routine is invoked to set up the PCI device memory space for device
4997  * with SLI-3 interface spec.
4998  *
4999  * Return codes
5000  *      0 - successful
5001  *      other values - error
5002  **/
5003 static int
5004 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5005 {
5006         struct pci_dev *pdev;
5007         unsigned long bar0map_len, bar2map_len;
5008         int i, hbq_count;
5009         void *ptr;
5010         int error = -ENODEV;
5011
5012         /* Obtain PCI device reference */
5013         if (!phba->pcidev)
5014                 return error;
5015         else
5016                 pdev = phba->pcidev;
5017
5018         /* Set the device DMA mask size */
5019         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5020          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5021                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5022                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5023                         return error;
5024                 }
5025         }
5026
5027         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5028          * required by each mapping.
5029          */
5030         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5031         bar0map_len = pci_resource_len(pdev, 0);
5032
5033         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5034         bar2map_len = pci_resource_len(pdev, 2);
5035
5036         /* Map HBA SLIM to a kernel virtual address. */
5037         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5038         if (!phba->slim_memmap_p) {
5039                 dev_printk(KERN_ERR, &pdev->dev,
5040                            "ioremap failed for SLIM memory.\n");
5041                 goto out;
5042         }
5043
5044         /* Map HBA Control Registers to a kernel virtual address. */
5045         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5046         if (!phba->ctrl_regs_memmap_p) {
5047                 dev_printk(KERN_ERR, &pdev->dev,
5048                            "ioremap failed for HBA control registers.\n");
5049                 goto out_iounmap_slim;
5050         }
5051
5052         /* Allocate memory for SLI-2 structures */
5053         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5054                                                SLI2_SLIM_SIZE,
5055                                                &phba->slim2p.phys,
5056                                                GFP_KERNEL);
5057         if (!phba->slim2p.virt)
5058                 goto out_iounmap;
5059
5060         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5061         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5062         phba->mbox_ext = (phba->slim2p.virt +
5063                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5064         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5065         phba->IOCBs = (phba->slim2p.virt +
5066                        offsetof(struct lpfc_sli2_slim, IOCBs));
5067
5068         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5069                                                  lpfc_sli_hbq_size(),
5070                                                  &phba->hbqslimp.phys,
5071                                                  GFP_KERNEL);
5072         if (!phba->hbqslimp.virt)
5073                 goto out_free_slim;
5074
5075         hbq_count = lpfc_sli_hbq_count();
5076         ptr = phba->hbqslimp.virt;
5077         for (i = 0; i < hbq_count; ++i) {
5078                 phba->hbqs[i].hbq_virt = ptr;
5079                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5080                 ptr += (lpfc_hbq_defs[i]->entry_count *
5081                         sizeof(struct lpfc_hbq_entry));
5082         }
5083         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5084         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5085
5086         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5087
5088         INIT_LIST_HEAD(&phba->rb_pend_list);
5089
5090         phba->MBslimaddr = phba->slim_memmap_p;
5091         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5092         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5093         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5094         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5095
5096         return 0;
5097
5098 out_free_slim:
5099         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5100                           phba->slim2p.virt, phba->slim2p.phys);
5101 out_iounmap:
5102         iounmap(phba->ctrl_regs_memmap_p);
5103 out_iounmap_slim:
5104         iounmap(phba->slim_memmap_p);
5105 out:
5106         return error;
5107 }
5108
5109 /**
5110  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5111  * @phba: pointer to lpfc hba data structure.
5112  *
5113  * This routine is invoked to unset the PCI device memory space for device
5114  * with SLI-3 interface spec.
5115  **/
5116 static void
5117 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5118 {
5119         struct pci_dev *pdev;
5120
5121         /* Obtain PCI device reference */
5122         if (!phba->pcidev)
5123                 return;
5124         else
5125                 pdev = phba->pcidev;
5126
5127         /* Free coherent DMA memory allocated */
5128         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5129                           phba->hbqslimp.virt, phba->hbqslimp.phys);
5130         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5131                           phba->slim2p.virt, phba->slim2p.phys);
5132
5133         /* I/O memory unmap */
5134         iounmap(phba->ctrl_regs_memmap_p);
5135         iounmap(phba->slim_memmap_p);
5136
5137         return;
5138 }
5139
5140 /**
5141  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5142  * @phba: pointer to lpfc hba data structure.
5143  *
5144  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5145  * done and check status.
5146  *
5147  * Return 0 if successful, otherwise -ENODEV.
5148  **/
5149 int
5150 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5151 {
5152         struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg;
5153         int i, port_error = -ENODEV;
5154
5155         if (!phba->sli4_hba.STAregaddr)
5156                 return -ENODEV;
5157
5158         /* Wait up to 30 seconds for the SLI Port POST done and ready */
5159         for (i = 0; i < 3000; i++) {
5160                 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
5161                 /* Encounter fatal POST error, break out */
5162                 if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
5163                         port_error = -ENODEV;
5164                         break;
5165                 }
5166                 if (LPFC_POST_STAGE_ARMFW_READY ==
5167                     bf_get(lpfc_hst_state_port_status, &sta_reg)) {
5168                         port_error = 0;
5169                         break;
5170                 }
5171                 msleep(10);
5172         }
5173
5174         if (port_error)
5175                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5176                         "1408 Failure HBA POST Status: sta_reg=0x%x, "
5177                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
5178                         "dl=x%x, pstatus=x%x\n", sta_reg.word0,
5179                         bf_get(lpfc_hst_state_perr, &sta_reg),
5180                         bf_get(lpfc_hst_state_sfi, &sta_reg),
5181                         bf_get(lpfc_hst_state_nip, &sta_reg),
5182                         bf_get(lpfc_hst_state_ipc, &sta_reg),
5183                         bf_get(lpfc_hst_state_xrom, &sta_reg),
5184                         bf_get(lpfc_hst_state_dl, &sta_reg),
5185                         bf_get(lpfc_hst_state_port_status, &sta_reg));
5186
5187         /* Log device information */
5188         phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr);
5189         if (bf_get(lpfc_sli_intf_valid,
5190                    &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) {
5191                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5192                                 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
5193                                 "FeatureL1=0x%x, FeatureL2=0x%x\n",
5194                                 bf_get(lpfc_sli_intf_sli_family,
5195                                        &phba->sli4_hba.sli_intf),
5196                                 bf_get(lpfc_sli_intf_slirev,
5197                                        &phba->sli4_hba.sli_intf),
5198                                 bf_get(lpfc_sli_intf_featurelevel1,
5199                                        &phba->sli4_hba.sli_intf),
5200                                 bf_get(lpfc_sli_intf_featurelevel2,
5201                                        &phba->sli4_hba.sli_intf));
5202         }
5203         phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr);
5204         phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr);
5205         /* With uncoverable error, log the error message and return error */
5206         uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
5207         uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
5208         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5209             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5210                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5211                                 "1422 HBA Unrecoverable error: "
5212                                 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
5213                                 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
5214                                 uerrlo_reg.word0, uerrhi_reg.word0,
5215                                 phba->sli4_hba.ue_mask_lo,
5216                                 phba->sli4_hba.ue_mask_hi);
5217                 return -ENODEV;
5218         }
5219
5220         return port_error;
5221 }
5222
5223 /**
5224  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5225  * @phba: pointer to lpfc hba data structure.
5226  *
5227  * This routine is invoked to set up SLI4 BAR0 PCI config space register
5228  * memory map.
5229  **/
5230 static void
5231 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
5232 {
5233         phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5234                                         LPFC_UERR_STATUS_LO;
5235         phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5236                                         LPFC_UERR_STATUS_HI;
5237         phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5238                                         LPFC_UE_MASK_LO;
5239         phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5240                                         LPFC_UE_MASK_HI;
5241         phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p +
5242                                         LPFC_SLI_INTF;
5243 }
5244
5245 /**
5246  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5247  * @phba: pointer to lpfc hba data structure.
5248  *
5249  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5250  * memory map.
5251  **/
5252 static void
5253 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5254 {
5255
5256         phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5257                                     LPFC_HST_STATE;
5258         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5259                                     LPFC_HST_ISR0;
5260         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5261                                     LPFC_HST_IMR0;
5262         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5263                                      LPFC_HST_ISCR0;
5264         return;
5265 }
5266
5267 /**
5268  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5269  * @phba: pointer to lpfc hba data structure.
5270  * @vf: virtual function number
5271  *
5272  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5273  * based on the given viftual function number, @vf.
5274  *
5275  * Return 0 if successful, otherwise -ENODEV.
5276  **/
5277 static int
5278 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5279 {
5280         if (vf > LPFC_VIR_FUNC_MAX)
5281                 return -ENODEV;
5282
5283         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5284                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5285         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5286                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5287         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5288                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5289         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5290                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5291         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5292                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5293         return 0;
5294 }
5295
5296 /**
5297  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5298  * @phba: pointer to lpfc hba data structure.
5299  *
5300  * This routine is invoked to create the bootstrap mailbox
5301  * region consistent with the SLI-4 interface spec.  This
5302  * routine allocates all memory necessary to communicate
5303  * mailbox commands to the port and sets up all alignment
5304  * needs.  No locks are expected to be held when calling
5305  * this routine.
5306  *
5307  * Return codes
5308  *      0 - successful
5309  *      ENOMEM - could not allocated memory.
5310  **/
5311 static int
5312 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5313 {
5314         uint32_t bmbx_size;
5315         struct lpfc_dmabuf *dmabuf;
5316         struct dma_address *dma_address;
5317         uint32_t pa_addr;
5318         uint64_t phys_addr;
5319
5320         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5321         if (!dmabuf)
5322                 return -ENOMEM;
5323
5324         /*
5325          * The bootstrap mailbox region is comprised of 2 parts
5326          * plus an alignment restriction of 16 bytes.
5327          */
5328         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5329         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5330                                           bmbx_size,
5331                                           &dmabuf->phys,
5332                                           GFP_KERNEL);
5333         if (!dmabuf->virt) {
5334                 kfree(dmabuf);
5335                 return -ENOMEM;
5336         }
5337         memset(dmabuf->virt, 0, bmbx_size);
5338
5339         /*
5340          * Initialize the bootstrap mailbox pointers now so that the register
5341          * operations are simple later.  The mailbox dma address is required
5342          * to be 16-byte aligned.  Also align the virtual memory as each
5343          * maibox is copied into the bmbx mailbox region before issuing the
5344          * command to the port.
5345          */
5346         phba->sli4_hba.bmbx.dmabuf = dmabuf;
5347         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5348
5349         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5350                                               LPFC_ALIGN_16_BYTE);
5351         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5352                                               LPFC_ALIGN_16_BYTE);
5353
5354         /*
5355          * Set the high and low physical addresses now.  The SLI4 alignment
5356          * requirement is 16 bytes and the mailbox is posted to the port
5357          * as two 30-bit addresses.  The other data is a bit marking whether
5358          * the 30-bit address is the high or low address.
5359          * Upcast bmbx aphys to 64bits so shift instruction compiles
5360          * clean on 32 bit machines.
5361          */
5362         dma_address = &phba->sli4_hba.bmbx.dma_address;
5363         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5364         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5365         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5366                                            LPFC_BMBX_BIT1_ADDR_HI);
5367
5368         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5369         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5370                                            LPFC_BMBX_BIT1_ADDR_LO);
5371         return 0;
5372 }
5373
5374 /**
5375  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5376  * @phba: pointer to lpfc hba data structure.
5377  *
5378  * This routine is invoked to teardown the bootstrap mailbox
5379  * region and release all host resources. This routine requires
5380  * the caller to ensure all mailbox commands recovered, no
5381  * additional mailbox comands are sent, and interrupts are disabled
5382  * before calling this routine.
5383  *
5384  **/
5385 static void
5386 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5387 {
5388         dma_free_coherent(&phba->pcidev->dev,
5389                           phba->sli4_hba.bmbx.bmbx_size,
5390                           phba->sli4_hba.bmbx.dmabuf->virt,
5391                           phba->sli4_hba.bmbx.dmabuf->phys);
5392
5393         kfree(phba->sli4_hba.bmbx.dmabuf);
5394         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5395 }
5396
5397 /**
5398  * lpfc_sli4_read_config - Get the config parameters.
5399  * @phba: pointer to lpfc hba data structure.
5400  *
5401  * This routine is invoked to read the configuration parameters from the HBA.
5402  * The configuration parameters are used to set the base and maximum values
5403  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5404  * allocation for the port.
5405  *
5406  * Return codes
5407  *      0 - successful
5408  *      ENOMEM - No availble memory
5409  *      EIO - The mailbox failed to complete successfully.
5410  **/
5411 static int
5412 lpfc_sli4_read_config(struct lpfc_hba *phba)
5413 {
5414         LPFC_MBOXQ_t *pmb;
5415         struct lpfc_mbx_read_config *rd_config;
5416         uint32_t rc = 0;
5417
5418         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5419         if (!pmb) {
5420                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5421                                 "2011 Unable to allocate memory for issuing "
5422                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5423                 return -ENOMEM;
5424         }
5425
5426         lpfc_read_config(phba, pmb);
5427
5428         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5429         if (rc != MBX_SUCCESS) {
5430                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5431                         "2012 Mailbox failed , mbxCmd x%x "
5432                         "READ_CONFIG, mbxStatus x%x\n",
5433                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
5434                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
5435                 rc = -EIO;
5436         } else {
5437                 rd_config = &pmb->u.mqe.un.rd_config;
5438                 phba->sli4_hba.max_cfg_param.max_xri =
5439                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5440                 phba->sli4_hba.max_cfg_param.xri_base =
5441                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5442                 phba->sli4_hba.max_cfg_param.max_vpi =
5443                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5444                 phba->sli4_hba.max_cfg_param.vpi_base =
5445                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5446                 phba->sli4_hba.max_cfg_param.max_rpi =
5447                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5448                 phba->sli4_hba.max_cfg_param.rpi_base =
5449                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5450                 phba->sli4_hba.max_cfg_param.max_vfi =
5451                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5452                 phba->sli4_hba.max_cfg_param.vfi_base =
5453                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5454                 phba->sli4_hba.max_cfg_param.max_fcfi =
5455                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5456                 phba->sli4_hba.max_cfg_param.fcfi_base =
5457                         bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
5458                 phba->sli4_hba.max_cfg_param.max_eq =
5459                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5460                 phba->sli4_hba.max_cfg_param.max_rq =
5461                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5462                 phba->sli4_hba.max_cfg_param.max_wq =
5463                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5464                 phba->sli4_hba.max_cfg_param.max_cq =
5465                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5466                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5467                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5468                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5469                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5470                 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5471                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5472                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5473                 phba->max_vports = phba->max_vpi;
5474                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5475                                 "2003 cfg params XRI(B:%d M:%d), "
5476                                 "VPI(B:%d M:%d) "
5477                                 "VFI(B:%d M:%d) "
5478                                 "RPI(B:%d M:%d) "
5479                                 "FCFI(B:%d M:%d)\n",
5480                                 phba->sli4_hba.max_cfg_param.xri_base,
5481                                 phba->sli4_hba.max_cfg_param.max_xri,
5482                                 phba->sli4_hba.max_cfg_param.vpi_base,
5483                                 phba->sli4_hba.max_cfg_param.max_vpi,
5484                                 phba->sli4_hba.max_cfg_param.vfi_base,
5485                                 phba->sli4_hba.max_cfg_param.max_vfi,
5486                                 phba->sli4_hba.max_cfg_param.rpi_base,
5487                                 phba->sli4_hba.max_cfg_param.max_rpi,
5488                                 phba->sli4_hba.max_cfg_param.fcfi_base,
5489                                 phba->sli4_hba.max_cfg_param.max_fcfi);
5490         }
5491         mempool_free(pmb, phba->mbox_mem_pool);
5492
5493         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
5494         if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri))
5495                 phba->cfg_hba_queue_depth =
5496                                 phba->sli4_hba.max_cfg_param.max_xri;
5497         return rc;
5498 }
5499
5500 /**
5501  * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5502  * @phba: pointer to lpfc hba data structure.
5503  *
5504  * This routine is invoked to setup the host-side endian order to the
5505  * HBA consistent with the SLI-4 interface spec.
5506  *
5507  * Return codes
5508  *      0 - successful
5509  *      ENOMEM - No availble memory
5510  *      EIO - The mailbox failed to complete successfully.
5511  **/
5512 static int
5513 lpfc_setup_endian_order(struct lpfc_hba *phba)
5514 {
5515         LPFC_MBOXQ_t *mboxq;
5516         uint32_t rc = 0;
5517         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
5518                                       HOST_ENDIAN_HIGH_WORD1};
5519
5520         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5521         if (!mboxq) {
5522                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5523                                 "0492 Unable to allocate memory for issuing "
5524                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5525                 return -ENOMEM;
5526         }
5527
5528         /*
5529          * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
5530          * words to contain special data values and no other data.
5531          */
5532         memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5533         memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5534         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5535         if (rc != MBX_SUCCESS) {
5536                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5537                                 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
5538                                 "status x%x\n",
5539                                 rc);
5540                 rc = -EIO;
5541         }
5542
5543         mempool_free(mboxq, phba->mbox_mem_pool);
5544         return rc;
5545 }
5546
5547 /**
5548  * lpfc_sli4_queue_create - Create all the SLI4 queues
5549  * @phba: pointer to lpfc hba data structure.
5550  *
5551  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5552  * operation. For each SLI4 queue type, the parameters such as queue entry
5553  * count (queue depth) shall be taken from the module parameter. For now,
5554  * we just use some constant number as place holder.
5555  *
5556  * Return codes
5557  *      0 - successful
5558  *      ENOMEM - No availble memory
5559  *      EIO - The mailbox failed to complete successfully.
5560  **/
5561 static int
5562 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5563 {
5564         struct lpfc_queue *qdesc;
5565         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5566         int cfg_fcp_wq_count;
5567         int cfg_fcp_eq_count;
5568
5569         /*
5570          * Sanity check for confiugred queue parameters against the run-time
5571          * device parameters
5572          */
5573
5574         /* Sanity check on FCP fast-path WQ parameters */
5575         cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5576         if (cfg_fcp_wq_count >
5577             (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5578                 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5579                                    LPFC_SP_WQN_DEF;
5580                 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5581                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5582                                         "2581 Not enough WQs (%d) from "
5583                                         "the pci function for supporting "
5584                                         "FCP WQs (%d)\n",
5585                                         phba->sli4_hba.max_cfg_param.max_wq,
5586                                         phba->cfg_fcp_wq_count);
5587                         goto out_error;
5588                 }
5589                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5590                                 "2582 Not enough WQs (%d) from the pci "
5591                                 "function for supporting the requested "
5592                                 "FCP WQs (%d), the actual FCP WQs can "
5593                                 "be supported: %d\n",
5594                                 phba->sli4_hba.max_cfg_param.max_wq,
5595                                 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5596         }
5597         /* The actual number of FCP work queues adopted */
5598         phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5599
5600         /* Sanity check on FCP fast-path EQ parameters */
5601         cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5602         if (cfg_fcp_eq_count >
5603             (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5604                 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5605                                    LPFC_SP_EQN_DEF;
5606                 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5607                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5608                                         "2574 Not enough EQs (%d) from the "
5609                                         "pci function for supporting FCP "
5610                                         "EQs (%d)\n",
5611                                         phba->sli4_hba.max_cfg_param.max_eq,
5612                                         phba->cfg_fcp_eq_count);
5613                         goto out_error;
5614                 }
5615                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5616                                 "2575 Not enough EQs (%d) from the pci "
5617                                 "function for supporting the requested "
5618                                 "FCP EQs (%d), the actual FCP EQs can "
5619                                 "be supported: %d\n",
5620                                 phba->sli4_hba.max_cfg_param.max_eq,
5621                                 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5622         }
5623         /* It does not make sense to have more EQs than WQs */
5624         if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5625                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5626                                 "2593 The FCP EQ count(%d) cannot be greater "
5627                                 "than the FCP WQ count(%d), limiting the "
5628                                 "FCP EQ count to %d\n", cfg_fcp_eq_count,
5629                                 phba->cfg_fcp_wq_count,
5630                                 phba->cfg_fcp_wq_count);
5631                 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5632         }
5633         /* The actual number of FCP event queues adopted */
5634         phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5635         /* The overall number of event queues used */
5636         phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
5637
5638         /*
5639          * Create Event Queues (EQs)
5640          */
5641
5642         /* Get EQ depth from module parameter, fake the default for now */
5643         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5644         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5645
5646         /* Create slow path event queue */
5647         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5648                                       phba->sli4_hba.eq_ecount);
5649         if (!qdesc) {
5650                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5651                                 "0496 Failed allocate slow-path EQ\n");
5652                 goto out_error;
5653         }
5654         phba->sli4_hba.sp_eq = qdesc;
5655
5656         /* Create fast-path FCP Event Queue(s) */
5657         phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5658                                phba->cfg_fcp_eq_count), GFP_KERNEL);
5659         if (!phba->sli4_hba.fp_eq) {
5660                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5661                                 "2576 Failed allocate memory for fast-path "
5662                                 "EQ record array\n");
5663                 goto out_free_sp_eq;
5664         }
5665         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5666                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5667                                               phba->sli4_hba.eq_ecount);
5668                 if (!qdesc) {
5669                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5670                                         "0497 Failed allocate fast-path EQ\n");
5671                         goto out_free_fp_eq;
5672                 }
5673                 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
5674         }
5675
5676         /*
5677          * Create Complete Queues (CQs)
5678          */
5679
5680         /* Get CQ depth from module parameter, fake the default for now */
5681         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
5682         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
5683
5684         /* Create slow-path Mailbox Command Complete Queue */
5685         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5686                                       phba->sli4_hba.cq_ecount);
5687         if (!qdesc) {
5688                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5689                                 "0500 Failed allocate slow-path mailbox CQ\n");
5690                 goto out_free_fp_eq;
5691         }
5692         phba->sli4_hba.mbx_cq = qdesc;
5693
5694         /* Create slow-path ELS Complete Queue */
5695         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5696                                       phba->sli4_hba.cq_ecount);
5697         if (!qdesc) {
5698                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5699                                 "0501 Failed allocate slow-path ELS CQ\n");
5700                 goto out_free_mbx_cq;
5701         }
5702         phba->sli4_hba.els_cq = qdesc;
5703
5704
5705         /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5706         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
5707                                 phba->cfg_fcp_eq_count), GFP_KERNEL);
5708         if (!phba->sli4_hba.fcp_cq) {
5709                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5710                                 "2577 Failed allocate memory for fast-path "
5711                                 "CQ record array\n");
5712                 goto out_free_els_cq;
5713         }
5714         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5715                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5716                                               phba->sli4_hba.cq_ecount);
5717                 if (!qdesc) {
5718                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5719                                         "0499 Failed allocate fast-path FCP "
5720                                         "CQ (%d)\n", fcp_cqidx);
5721                         goto out_free_fcp_cq;
5722                 }
5723                 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5724         }
5725
5726         /* Create Mailbox Command Queue */
5727         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
5728         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
5729
5730         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
5731                                       phba->sli4_hba.mq_ecount);
5732         if (!qdesc) {
5733                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5734                                 "0505 Failed allocate slow-path MQ\n");
5735                 goto out_free_fcp_cq;
5736         }
5737         phba->sli4_hba.mbx_wq = qdesc;
5738
5739         /*
5740          * Create all the Work Queues (WQs)
5741          */
5742         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
5743         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
5744
5745         /* Create slow-path ELS Work Queue */
5746         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5747                                       phba->sli4_hba.wq_ecount);
5748         if (!qdesc) {
5749                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5750                                 "0504 Failed allocate slow-path ELS WQ\n");
5751                 goto out_free_mbx_wq;
5752         }
5753         phba->sli4_hba.els_wq = qdesc;
5754
5755         /* Create fast-path FCP Work Queue(s) */
5756         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
5757                                 phba->cfg_fcp_wq_count), GFP_KERNEL);
5758         if (!phba->sli4_hba.fcp_wq) {
5759                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5760                                 "2578 Failed allocate memory for fast-path "
5761                                 "WQ record array\n");
5762                 goto out_free_els_wq;
5763         }
5764         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5765                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5766                                               phba->sli4_hba.wq_ecount);
5767                 if (!qdesc) {
5768                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5769                                         "0503 Failed allocate fast-path FCP "
5770                                         "WQ (%d)\n", fcp_wqidx);
5771                         goto out_free_fcp_wq;
5772                 }
5773                 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
5774         }
5775
5776         /*
5777          * Create Receive Queue (RQ)
5778          */
5779         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
5780         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
5781
5782         /* Create Receive Queue for header */
5783         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5784                                       phba->sli4_hba.rq_ecount);
5785         if (!qdesc) {
5786                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5787                                 "0506 Failed allocate receive HRQ\n");
5788                 goto out_free_fcp_wq;
5789         }
5790         phba->sli4_hba.hdr_rq = qdesc;
5791
5792         /* Create Receive Queue for data */
5793         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5794                                       phba->sli4_hba.rq_ecount);
5795         if (!qdesc) {
5796                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5797                                 "0507 Failed allocate receive DRQ\n");
5798                 goto out_free_hdr_rq;
5799         }
5800         phba->sli4_hba.dat_rq = qdesc;
5801
5802         return 0;
5803
5804 out_free_hdr_rq:
5805         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5806         phba->sli4_hba.hdr_rq = NULL;
5807 out_free_fcp_wq:
5808         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
5809                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
5810                 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
5811         }
5812         kfree(phba->sli4_hba.fcp_wq);
5813 out_free_els_wq:
5814         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5815         phba->sli4_hba.els_wq = NULL;
5816 out_free_mbx_wq:
5817         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5818         phba->sli4_hba.mbx_wq = NULL;
5819 out_free_fcp_cq:
5820         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
5821                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
5822                 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
5823         }
5824         kfree(phba->sli4_hba.fcp_cq);
5825 out_free_els_cq:
5826         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5827         phba->sli4_hba.els_cq = NULL;
5828 out_free_mbx_cq:
5829         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5830         phba->sli4_hba.mbx_cq = NULL;
5831 out_free_fp_eq:
5832         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
5833                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
5834                 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
5835         }
5836         kfree(phba->sli4_hba.fp_eq);
5837 out_free_sp_eq:
5838         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5839         phba->sli4_hba.sp_eq = NULL;
5840 out_error:
5841         return -ENOMEM;
5842 }
5843
5844 /**
5845  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5846  * @phba: pointer to lpfc hba data structure.
5847  *
5848  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5849  * operation.
5850  *
5851  * Return codes
5852  *      0 - successful
5853  *      ENOMEM - No availble memory
5854  *      EIO - The mailbox failed to complete successfully.
5855  **/
5856 static void
5857 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
5858 {
5859         int fcp_qidx;
5860
5861         /* Release mailbox command work queue */
5862         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5863         phba->sli4_hba.mbx_wq = NULL;
5864
5865         /* Release ELS work queue */
5866         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5867         phba->sli4_hba.els_wq = NULL;
5868
5869         /* Release FCP work queue */
5870         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5871                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
5872         kfree(phba->sli4_hba.fcp_wq);
5873         phba->sli4_hba.fcp_wq = NULL;
5874
5875         /* Release unsolicited receive queue */
5876         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5877         phba->sli4_hba.hdr_rq = NULL;
5878         lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
5879         phba->sli4_hba.dat_rq = NULL;
5880
5881         /* Release ELS complete queue */
5882         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5883         phba->sli4_hba.els_cq = NULL;
5884
5885         /* Release mailbox command complete queue */
5886         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5887         phba->sli4_hba.mbx_cq = NULL;
5888
5889         /* Release FCP response complete queue */
5890         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5891                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
5892         kfree(phba->sli4_hba.fcp_cq);
5893         phba->sli4_hba.fcp_cq = NULL;
5894
5895         /* Release fast-path event queue */
5896         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5897                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
5898         kfree(phba->sli4_hba.fp_eq);
5899         phba->sli4_hba.fp_eq = NULL;
5900
5901         /* Release slow-path event queue */
5902         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5903         phba->sli4_hba.sp_eq = NULL;
5904
5905         return;
5906 }
5907
5908 /**
5909  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5910  * @phba: pointer to lpfc hba data structure.
5911  *
5912  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5913  * operation.
5914  *
5915  * Return codes
5916  *      0 - successful
5917  *      ENOMEM - No availble memory
5918  *      EIO - The mailbox failed to complete successfully.
5919  **/
5920 int
5921 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
5922 {
5923         int rc = -ENOMEM;
5924         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5925         int fcp_cq_index = 0;
5926
5927         /*
5928          * Set up Event Queues (EQs)
5929          */
5930
5931         /* Set up slow-path event queue */
5932         if (!phba->sli4_hba.sp_eq) {
5933                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5934                                 "0520 Slow-path EQ not allocated\n");
5935                 goto out_error;
5936         }
5937         rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
5938                             LPFC_SP_DEF_IMAX);
5939         if (rc) {
5940                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5941                                 "0521 Failed setup of slow-path EQ: "
5942                                 "rc = 0x%x\n", rc);
5943                 goto out_error;
5944         }
5945         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5946                         "2583 Slow-path EQ setup: queue-id=%d\n",
5947                         phba->sli4_hba.sp_eq->queue_id);
5948
5949         /* Set up fast-path event queue */
5950         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5951                 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
5952                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5953                                         "0522 Fast-path EQ (%d) not "
5954                                         "allocated\n", fcp_eqidx);
5955                         goto out_destroy_fp_eq;
5956                 }
5957                 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
5958                                     phba->cfg_fcp_imax);
5959                 if (rc) {
5960                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5961                                         "0523 Failed setup of fast-path EQ "
5962                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
5963                         goto out_destroy_fp_eq;
5964                 }
5965                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5966                                 "2584 Fast-path EQ setup: "
5967                                 "queue[%d]-id=%d\n", fcp_eqidx,
5968                                 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
5969         }
5970
5971         /*
5972          * Set up Complete Queues (CQs)
5973          */
5974
5975         /* Set up slow-path MBOX Complete Queue as the first CQ */
5976         if (!phba->sli4_hba.mbx_cq) {
5977                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5978                                 "0528 Mailbox CQ not allocated\n");
5979                 goto out_destroy_fp_eq;
5980         }
5981         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
5982                             LPFC_MCQ, LPFC_MBOX);
5983         if (rc) {
5984                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5985                                 "0529 Failed setup of slow-path mailbox CQ: "
5986                                 "rc = 0x%x\n", rc);
5987                 goto out_destroy_fp_eq;
5988         }
5989         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5990                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
5991                         phba->sli4_hba.mbx_cq->queue_id,
5992                         phba->sli4_hba.sp_eq->queue_id);
5993
5994         /* Set up slow-path ELS Complete Queue */
5995         if (!phba->sli4_hba.els_cq) {
5996                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5997                                 "0530 ELS CQ not allocated\n");
5998                 goto out_destroy_mbx_cq;
5999         }
6000         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6001                             LPFC_WCQ, LPFC_ELS);
6002         if (rc) {
6003                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6004                                 "0531 Failed setup of slow-path ELS CQ: "
6005                                 "rc = 0x%x\n", rc);
6006                 goto out_destroy_mbx_cq;
6007         }
6008         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6009                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6010                         phba->sli4_hba.els_cq->queue_id,
6011                         phba->sli4_hba.sp_eq->queue_id);
6012
6013         /* Set up fast-path FCP Response Complete Queue */
6014         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6015                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6016                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6017                                         "0526 Fast-path FCP CQ (%d) not "
6018                                         "allocated\n", fcp_cqidx);
6019                         goto out_destroy_fcp_cq;
6020                 }
6021                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
6022                                     phba->sli4_hba.fp_eq[fcp_cqidx],
6023                                     LPFC_WCQ, LPFC_FCP);
6024                 if (rc) {
6025                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6026                                         "0527 Failed setup of fast-path FCP "
6027                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6028                         goto out_destroy_fcp_cq;
6029                 }
6030                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6031                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
6032                                 "parent eq[%d]-id=%d\n",
6033                                 fcp_cqidx,
6034                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6035                                 fcp_cqidx,
6036                                 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
6037         }
6038
6039         /*
6040          * Set up all the Work Queues (WQs)
6041          */
6042
6043         /* Set up Mailbox Command Queue */
6044         if (!phba->sli4_hba.mbx_wq) {
6045                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6046                                 "0538 Slow-path MQ not allocated\n");
6047                 goto out_destroy_fcp_cq;
6048         }
6049         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6050                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
6051         if (rc) {
6052                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6053                                 "0539 Failed setup of slow-path MQ: "
6054                                 "rc = 0x%x\n", rc);
6055                 goto out_destroy_fcp_cq;
6056         }
6057         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6058                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6059                         phba->sli4_hba.mbx_wq->queue_id,
6060                         phba->sli4_hba.mbx_cq->queue_id);
6061
6062         /* Set up slow-path ELS Work Queue */
6063         if (!phba->sli4_hba.els_wq) {
6064                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6065                                 "0536 Slow-path ELS WQ not allocated\n");
6066                 goto out_destroy_mbx_wq;
6067         }
6068         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6069                             phba->sli4_hba.els_cq, LPFC_ELS);
6070         if (rc) {
6071                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6072                                 "0537 Failed setup of slow-path ELS WQ: "
6073                                 "rc = 0x%x\n", rc);
6074                 goto out_destroy_mbx_wq;
6075         }
6076         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6077                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6078                         phba->sli4_hba.els_wq->queue_id,
6079                         phba->sli4_hba.els_cq->queue_id);
6080
6081         /* Set up fast-path FCP Work Queue */
6082         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6083                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6084                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6085                                         "0534 Fast-path FCP WQ (%d) not "
6086                                         "allocated\n", fcp_wqidx);
6087                         goto out_destroy_fcp_wq;
6088                 }
6089                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6090                                     phba->sli4_hba.fcp_cq[fcp_cq_index],
6091                                     LPFC_FCP);
6092                 if (rc) {
6093                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6094                                         "0535 Failed setup of fast-path FCP "
6095                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6096                         goto out_destroy_fcp_wq;
6097                 }
6098                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6099                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
6100                                 "parent cq[%d]-id=%d\n",
6101                                 fcp_wqidx,
6102                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6103                                 fcp_cq_index,
6104                                 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6105                 /* Round robin FCP Work Queue's Completion Queue assignment */
6106                 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
6107         }
6108
6109         /*
6110          * Create Receive Queue (RQ)
6111          */
6112         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6113                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6114                                 "0540 Receive Queue not allocated\n");
6115                 goto out_destroy_fcp_wq;
6116         }
6117         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6118                             phba->sli4_hba.els_cq, LPFC_USOL);
6119         if (rc) {
6120                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6121                                 "0541 Failed setup of Receive Queue: "
6122                                 "rc = 0x%x\n", rc);
6123                 goto out_destroy_fcp_wq;
6124         }
6125         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6126                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6127                         "parent cq-id=%d\n",
6128                         phba->sli4_hba.hdr_rq->queue_id,
6129                         phba->sli4_hba.dat_rq->queue_id,
6130                         phba->sli4_hba.els_cq->queue_id);
6131         return 0;
6132
6133 out_destroy_fcp_wq:
6134         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6135                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6136         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6137 out_destroy_mbx_wq:
6138         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6139 out_destroy_fcp_cq:
6140         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6141                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6142         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6143 out_destroy_mbx_cq:
6144         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6145 out_destroy_fp_eq:
6146         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6147                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6148         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6149 out_error:
6150         return rc;
6151 }
6152
6153 /**
6154  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6155  * @phba: pointer to lpfc hba data structure.
6156  *
6157  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6158  * operation.
6159  *
6160  * Return codes
6161  *      0 - successful
6162  *      ENOMEM - No availble memory
6163  *      EIO - The mailbox failed to complete successfully.
6164  **/
6165 void
6166 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6167 {
6168         int fcp_qidx;
6169
6170         /* Unset mailbox command work queue */
6171         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6172         /* Unset ELS work queue */
6173         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6174         /* Unset unsolicited receive queue */
6175         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6176         /* Unset FCP work queue */
6177         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6178                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6179         /* Unset mailbox command complete queue */
6180         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6181         /* Unset ELS complete queue */
6182         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6183         /* Unset FCP response complete queue */
6184         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6185                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6186         /* Unset fast-path event queue */
6187         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6188                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6189         /* Unset slow-path event queue */
6190         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6191 }
6192
6193 /**
6194  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6195  * @phba: pointer to lpfc hba data structure.
6196  *
6197  * This routine is invoked to allocate and set up a pool of completion queue
6198  * events. The body of the completion queue event is a completion queue entry
6199  * CQE. For now, this pool is used for the interrupt service routine to queue
6200  * the following HBA completion queue events for the worker thread to process:
6201  *   - Mailbox asynchronous events
6202  *   - Receive queue completion unsolicited events
6203  * Later, this can be used for all the slow-path events.
6204  *
6205  * Return codes
6206  *      0 - successful
6207  *      -ENOMEM - No availble memory
6208  **/
6209 static int
6210 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6211 {
6212         struct lpfc_cq_event *cq_event;
6213         int i;
6214
6215         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6216                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6217                 if (!cq_event)
6218                         goto out_pool_create_fail;
6219                 list_add_tail(&cq_event->list,
6220                               &phba->sli4_hba.sp_cqe_event_pool);
6221         }
6222         return 0;
6223
6224 out_pool_create_fail:
6225         lpfc_sli4_cq_event_pool_destroy(phba);
6226         return -ENOMEM;
6227 }
6228
6229 /**
6230  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6231  * @phba: pointer to lpfc hba data structure.
6232  *
6233  * This routine is invoked to free the pool of completion queue events at
6234  * driver unload time. Note that, it is the responsibility of the driver
6235  * cleanup routine to free all the outstanding completion-queue events
6236  * allocated from this pool back into the pool before invoking this routine
6237  * to destroy the pool.
6238  **/
6239 static void
6240 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6241 {
6242         struct lpfc_cq_event *cq_event, *next_cq_event;
6243
6244         list_for_each_entry_safe(cq_event, next_cq_event,
6245                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
6246                 list_del(&cq_event->list);
6247                 kfree(cq_event);
6248         }
6249 }
6250
6251 /**
6252  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6253  * @phba: pointer to lpfc hba data structure.
6254  *
6255  * This routine is the lock free version of the API invoked to allocate a
6256  * completion-queue event from the free pool.
6257  *
6258  * Return: Pointer to the newly allocated completion-queue event if successful
6259  *         NULL otherwise.
6260  **/
6261 struct lpfc_cq_event *
6262 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6263 {
6264         struct lpfc_cq_event *cq_event = NULL;
6265
6266         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6267                          struct lpfc_cq_event, list);
6268         return cq_event;
6269 }
6270
6271 /**
6272  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6273  * @phba: pointer to lpfc hba data structure.
6274  *
6275  * This routine is the lock version of the API invoked to allocate a
6276  * completion-queue event from the free pool.
6277  *
6278  * Return: Pointer to the newly allocated completion-queue event if successful
6279  *         NULL otherwise.
6280  **/
6281 struct lpfc_cq_event *
6282 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6283 {
6284         struct lpfc_cq_event *cq_event;
6285         unsigned long iflags;
6286
6287         spin_lock_irqsave(&phba->hbalock, iflags);
6288         cq_event = __lpfc_sli4_cq_event_alloc(phba);
6289         spin_unlock_irqrestore(&phba->hbalock, iflags);
6290         return cq_event;
6291 }
6292
6293 /**
6294  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6295  * @phba: pointer to lpfc hba data structure.
6296  * @cq_event: pointer to the completion queue event to be freed.
6297  *
6298  * This routine is the lock free version of the API invoked to release a
6299  * completion-queue event back into the free pool.
6300  **/
6301 void
6302 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6303                              struct lpfc_cq_event *cq_event)
6304 {
6305         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6306 }
6307
6308 /**
6309  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6310  * @phba: pointer to lpfc hba data structure.
6311  * @cq_event: pointer to the completion queue event to be freed.
6312  *
6313  * This routine is the lock version of the API invoked to release a
6314  * completion-queue event back into the free pool.
6315  **/
6316 void
6317 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6318                            struct lpfc_cq_event *cq_event)
6319 {
6320         unsigned long iflags;
6321         spin_lock_irqsave(&phba->hbalock, iflags);
6322         __lpfc_sli4_cq_event_release(phba, cq_event);
6323         spin_unlock_irqrestore(&phba->hbalock, iflags);
6324 }
6325
6326 /**
6327  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6328  * @phba: pointer to lpfc hba data structure.
6329  *
6330  * This routine is to free all the pending completion-queue events to the
6331  * back into the free pool for device reset.
6332  **/
6333 static void
6334 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6335 {
6336         LIST_HEAD(cqelist);
6337         struct lpfc_cq_event *cqe;
6338         unsigned long iflags;
6339
6340         /* Retrieve all the pending WCQEs from pending WCQE lists */
6341         spin_lock_irqsave(&phba->hbalock, iflags);
6342         /* Pending FCP XRI abort events */
6343         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6344                          &cqelist);
6345         /* Pending ELS XRI abort events */
6346         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6347                          &cqelist);
6348         /* Pending asynnc events */
6349         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6350                          &cqelist);
6351         spin_unlock_irqrestore(&phba->hbalock, iflags);
6352
6353         while (!list_empty(&cqelist)) {
6354                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6355                 lpfc_sli4_cq_event_release(phba, cqe);
6356         }
6357 }
6358
6359 /**
6360  * lpfc_pci_function_reset - Reset pci function.
6361  * @phba: pointer to lpfc hba data structure.
6362  *
6363  * This routine is invoked to request a PCI function reset. It will destroys
6364  * all resources assigned to the PCI function which originates this request.
6365  *
6366  * Return codes
6367  *      0 - successful
6368  *      ENOMEM - No availble memory
6369  *      EIO - The mailbox failed to complete successfully.
6370  **/
6371 int
6372 lpfc_pci_function_reset(struct lpfc_hba *phba)
6373 {
6374         LPFC_MBOXQ_t *mboxq;
6375         uint32_t rc = 0;
6376         uint32_t shdr_status, shdr_add_status;
6377         union lpfc_sli4_cfg_shdr *shdr;
6378
6379         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6380         if (!mboxq) {
6381                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6382                                 "0494 Unable to allocate memory for issuing "
6383                                 "SLI_FUNCTION_RESET mailbox command\n");
6384                 return -ENOMEM;
6385         }
6386
6387         /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
6388         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6389                          LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6390                          LPFC_SLI4_MBX_EMBED);
6391         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6392         shdr = (union lpfc_sli4_cfg_shdr *)
6393                 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6394         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6395         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6396         if (rc != MBX_TIMEOUT)
6397                 mempool_free(mboxq, phba->mbox_mem_pool);
6398         if (shdr_status || shdr_add_status || rc) {
6399                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6400                                 "0495 SLI_FUNCTION_RESET mailbox failed with "
6401                                 "status x%x add_status x%x, mbx status x%x\n",
6402                                 shdr_status, shdr_add_status, rc);
6403                 rc = -ENXIO;
6404         }
6405         return rc;
6406 }
6407
6408 /**
6409  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6410  * @phba: pointer to lpfc hba data structure.
6411  * @cnt: number of nop mailbox commands to send.
6412  *
6413  * This routine is invoked to send a number @cnt of NOP mailbox command and
6414  * wait for each command to complete.
6415  *
6416  * Return: the number of NOP mailbox command completed.
6417  **/
6418 static int
6419 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
6420 {
6421         LPFC_MBOXQ_t *mboxq;
6422         int length, cmdsent;
6423         uint32_t mbox_tmo;
6424         uint32_t rc = 0;
6425         uint32_t shdr_status, shdr_add_status;
6426         union lpfc_sli4_cfg_shdr *shdr;
6427
6428         if (cnt == 0) {
6429                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6430                                 "2518 Requested to send 0 NOP mailbox cmd\n");
6431                 return cnt;
6432         }
6433
6434         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6435         if (!mboxq) {
6436                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6437                                 "2519 Unable to allocate memory for issuing "
6438                                 "NOP mailbox command\n");
6439                 return 0;
6440         }
6441
6442         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6443         length = (sizeof(struct lpfc_mbx_nop) -
6444                   sizeof(struct lpfc_sli4_cfg_mhdr));
6445         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6446                          LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
6447
6448         mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6449         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
6450                 if (!phba->sli4_hba.intr_enable)
6451                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6452                 else
6453                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
6454                 if (rc == MBX_TIMEOUT)
6455                         break;
6456                 /* Check return status */
6457                 shdr = (union lpfc_sli4_cfg_shdr *)
6458                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6459                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6460                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6461                                          &shdr->response);
6462                 if (shdr_status || shdr_add_status || rc) {
6463                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6464                                         "2520 NOP mailbox command failed "
6465                                         "status x%x add_status x%x mbx "
6466                                         "status x%x\n", shdr_status,
6467                                         shdr_add_status, rc);
6468                         break;
6469                 }
6470         }
6471
6472         if (rc != MBX_TIMEOUT)
6473                 mempool_free(mboxq, phba->mbox_mem_pool);
6474
6475         return cmdsent;
6476 }
6477
6478 /**
6479  * lpfc_sli4_fcfi_unreg - Unregister fcfi to device
6480  * @phba: pointer to lpfc hba data structure.
6481  * @fcfi: fcf index.
6482  *
6483  * This routine is invoked to unregister a FCFI from device.
6484  **/
6485 void
6486 lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi)
6487 {
6488         LPFC_MBOXQ_t *mbox;
6489         uint32_t mbox_tmo;
6490         int rc;
6491         unsigned long flags;
6492
6493         mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6494
6495         if (!mbox)
6496                 return;
6497
6498         lpfc_unreg_fcfi(mbox, fcfi);
6499
6500         if (!phba->sli4_hba.intr_enable)
6501                 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6502         else {
6503                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6504                 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6505         }
6506         if (rc != MBX_TIMEOUT)
6507                 mempool_free(mbox, phba->mbox_mem_pool);
6508         if (rc != MBX_SUCCESS)
6509                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6510                                 "2517 Unregister FCFI command failed "
6511                                 "status %d, mbxStatus x%x\n", rc,
6512                                 bf_get(lpfc_mqe_status, &mbox->u.mqe));
6513         else {
6514                 spin_lock_irqsave(&phba->hbalock, flags);
6515                 /* Mark the FCFI is no longer registered */
6516                 phba->fcf.fcf_flag &=
6517                         ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_SCAN_DONE);
6518                 spin_unlock_irqrestore(&phba->hbalock, flags);
6519         }
6520 }
6521
6522 /**
6523  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6524  * @phba: pointer to lpfc hba data structure.
6525  *
6526  * This routine is invoked to set up the PCI device memory space for device
6527  * with SLI-4 interface spec.
6528  *
6529  * Return codes
6530  *      0 - successful
6531  *      other values - error
6532  **/
6533 static int
6534 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6535 {
6536         struct pci_dev *pdev;
6537         unsigned long bar0map_len, bar1map_len, bar2map_len;
6538         int error = -ENODEV;
6539
6540         /* Obtain PCI device reference */
6541         if (!phba->pcidev)
6542                 return error;
6543         else
6544                 pdev = phba->pcidev;
6545
6546         /* Set the device DMA mask size */
6547         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6548          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6549                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6550                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6551                         return error;
6552                 }
6553         }
6554
6555         /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6556          * number of bytes required by each mapping. They are actually
6557          * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
6558          */
6559         if (pci_resource_start(pdev, 0)) {
6560                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6561                 bar0map_len = pci_resource_len(pdev, 0);
6562         } else {
6563                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
6564                 bar0map_len = pci_resource_len(pdev, 1);
6565         }
6566         phba->pci_bar1_map = pci_resource_start(pdev, 2);
6567         bar1map_len = pci_resource_len(pdev, 2);
6568
6569         phba->pci_bar2_map = pci_resource_start(pdev, 4);
6570         bar2map_len = pci_resource_len(pdev, 4);
6571
6572         /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6573         phba->sli4_hba.conf_regs_memmap_p =
6574                                 ioremap(phba->pci_bar0_map, bar0map_len);
6575         if (!phba->sli4_hba.conf_regs_memmap_p) {
6576                 dev_printk(KERN_ERR, &pdev->dev,
6577                            "ioremap failed for SLI4 PCI config registers.\n");
6578                 goto out;
6579         }
6580
6581         /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6582         phba->sli4_hba.ctrl_regs_memmap_p =
6583                                 ioremap(phba->pci_bar1_map, bar1map_len);
6584         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
6585                 dev_printk(KERN_ERR, &pdev->dev,
6586                            "ioremap failed for SLI4 HBA control registers.\n");
6587                 goto out_iounmap_conf;
6588         }
6589
6590         /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6591         phba->sli4_hba.drbl_regs_memmap_p =
6592                                 ioremap(phba->pci_bar2_map, bar2map_len);
6593         if (!phba->sli4_hba.drbl_regs_memmap_p) {
6594                 dev_printk(KERN_ERR, &pdev->dev,
6595                            "ioremap failed for SLI4 HBA doorbell registers.\n");
6596                 goto out_iounmap_ctrl;
6597         }
6598
6599         /* Set up BAR0 PCI config space register memory map */
6600         lpfc_sli4_bar0_register_memmap(phba);
6601
6602         /* Set up BAR1 register memory map */
6603         lpfc_sli4_bar1_register_memmap(phba);
6604
6605         /* Set up BAR2 register memory map */
6606         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
6607         if (error)
6608                 goto out_iounmap_all;
6609
6610         return 0;
6611
6612 out_iounmap_all:
6613         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6614 out_iounmap_ctrl:
6615         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6616 out_iounmap_conf:
6617         iounmap(phba->sli4_hba.conf_regs_memmap_p);
6618 out:
6619         return error;
6620 }
6621
6622 /**
6623  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6624  * @phba: pointer to lpfc hba data structure.
6625  *
6626  * This routine is invoked to unset the PCI device memory space for device
6627  * with SLI-4 interface spec.
6628  **/
6629 static void
6630 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
6631 {
6632         struct pci_dev *pdev;
6633
6634         /* Obtain PCI device reference */
6635         if (!phba->pcidev)
6636                 return;
6637         else
6638                 pdev = phba->pcidev;
6639
6640         /* Free coherent DMA memory allocated */
6641
6642         /* Unmap I/O memory space */
6643         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6644         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6645         iounmap(phba->sli4_hba.conf_regs_memmap_p);
6646
6647         return;
6648 }
6649
6650 /**
6651  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6652  * @phba: pointer to lpfc hba data structure.
6653  *
6654  * This routine is invoked to enable the MSI-X interrupt vectors to device
6655  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6656  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6657  * invoked, enables either all or nothing, depending on the current
6658  * availability of PCI vector resources. The device driver is responsible
6659  * for calling the individual request_irq() to register each MSI-X vector
6660  * with a interrupt handler, which is done in this function. Note that
6661  * later when device is unloading, the driver should always call free_irq()
6662  * on all MSI-X vectors it has done request_irq() on before calling
6663  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6664  * will be left with MSI-X enabled and leaks its vectors.
6665  *
6666  * Return codes
6667  *   0 - successful
6668  *   other values - error
6669  **/
6670 static int
6671 lpfc_sli_enable_msix(struct lpfc_hba *phba)
6672 {
6673         int rc, i;
6674         LPFC_MBOXQ_t *pmb;
6675
6676         /* Set up MSI-X multi-message vectors */
6677         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6678                 phba->msix_entries[i].entry = i;
6679
6680         /* Configure MSI-X capability structure */
6681         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
6682                                 ARRAY_SIZE(phba->msix_entries));
6683         if (rc) {
6684                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6685                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
6686                 goto msi_fail_out;
6687         }
6688         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6689                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6690                                 "0477 MSI-X entry[%d]: vector=x%x "
6691                                 "message=%d\n", i,
6692                                 phba->msix_entries[i].vector,
6693                                 phba->msix_entries[i].entry);
6694         /*
6695          * Assign MSI-X vectors to interrupt handlers
6696          */
6697
6698         /* vector-0 is associated to slow-path handler */
6699         rc = request_irq(phba->msix_entries[0].vector,
6700                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
6701                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
6702         if (rc) {
6703                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6704                                 "0421 MSI-X slow-path request_irq failed "
6705                                 "(%d)\n", rc);
6706                 goto msi_fail_out;
6707         }
6708
6709         /* vector-1 is associated to fast-path handler */
6710         rc = request_irq(phba->msix_entries[1].vector,
6711                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
6712                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
6713
6714         if (rc) {
6715                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6716                                 "0429 MSI-X fast-path request_irq failed "
6717                                 "(%d)\n", rc);
6718                 goto irq_fail_out;
6719         }
6720
6721         /*
6722          * Configure HBA MSI-X attention conditions to messages
6723          */
6724         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6725
6726         if (!pmb) {
6727                 rc = -ENOMEM;
6728                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6729                                 "0474 Unable to allocate memory for issuing "
6730                                 "MBOX_CONFIG_MSI command\n");
6731                 goto mem_fail_out;
6732         }
6733         rc = lpfc_config_msi(phba, pmb);
6734         if (rc)
6735                 goto mbx_fail_out;
6736         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6737         if (rc != MBX_SUCCESS) {
6738                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
6739                                 "0351 Config MSI mailbox command failed, "
6740                                 "mbxCmd x%x, mbxStatus x%x\n",
6741                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
6742                 goto mbx_fail_out;
6743         }
6744
6745         /* Free memory allocated for mailbox command */
6746         mempool_free(pmb, phba->mbox_mem_pool);
6747         return rc;
6748
6749 mbx_fail_out:
6750         /* Free memory allocated for mailbox command */
6751         mempool_free(pmb, phba->mbox_mem_pool);
6752
6753 mem_fail_out:
6754         /* free the irq already requested */
6755         free_irq(phba->msix_entries[1].vector, phba);
6756
6757 irq_fail_out:
6758         /* free the irq already requested */
6759         free_irq(phba->msix_entries[0].vector, phba);
6760
6761 msi_fail_out:
6762         /* Unconfigure MSI-X capability structure */
6763         pci_disable_msix(phba->pcidev);
6764         return rc;
6765 }
6766
6767 /**
6768  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6769  * @phba: pointer to lpfc hba data structure.
6770  *
6771  * This routine is invoked to release the MSI-X vectors and then disable the
6772  * MSI-X interrupt mode to device with SLI-3 interface spec.
6773  **/
6774 static void
6775 lpfc_sli_disable_msix(struct lpfc_hba *phba)
6776 {
6777         int i;
6778
6779         /* Free up MSI-X multi-message vectors */
6780         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6781                 free_irq(phba->msix_entries[i].vector, phba);
6782         /* Disable MSI-X */
6783         pci_disable_msix(phba->pcidev);
6784
6785         return;
6786 }
6787
6788 /**
6789  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6790  * @phba: pointer to lpfc hba data structure.
6791  *
6792  * This routine is invoked to enable the MSI interrupt mode to device with
6793  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6794  * enable the MSI vector. The device driver is responsible for calling the
6795  * request_irq() to register MSI vector with a interrupt the handler, which
6796  * is done in this function.
6797  *
6798  * Return codes
6799  *      0 - successful
6800  *      other values - error
6801  */
6802 static int
6803 lpfc_sli_enable_msi(struct lpfc_hba *phba)
6804 {
6805         int rc;
6806
6807         rc = pci_enable_msi(phba->pcidev);
6808         if (!rc)
6809                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6810                                 "0462 PCI enable MSI mode success.\n");
6811         else {
6812                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6813                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
6814                 return rc;
6815         }
6816
6817         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6818                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6819         if (rc) {
6820                 pci_disable_msi(phba->pcidev);
6821                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6822                                 "0478 MSI request_irq failed (%d)\n", rc);
6823         }
6824         return rc;
6825 }
6826
6827 /**
6828  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6829  * @phba: pointer to lpfc hba data structure.
6830  *
6831  * This routine is invoked to disable the MSI interrupt mode to device with
6832  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6833  * done request_irq() on before calling pci_disable_msi(). Failure to do so
6834  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6835  * its vector.
6836  */
6837 static void
6838 lpfc_sli_disable_msi(struct lpfc_hba *phba)
6839 {
6840         free_irq(phba->pcidev->irq, phba);
6841         pci_disable_msi(phba->pcidev);
6842         return;
6843 }
6844
6845 /**
6846  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6847  * @phba: pointer to lpfc hba data structure.
6848  *
6849  * This routine is invoked to enable device interrupt and associate driver's
6850  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6851  * spec. Depends on the interrupt mode configured to the driver, the driver
6852  * will try to fallback from the configured interrupt mode to an interrupt
6853  * mode which is supported by the platform, kernel, and device in the order
6854  * of:
6855  * MSI-X -> MSI -> IRQ.
6856  *
6857  * Return codes
6858  *   0 - successful
6859  *   other values - error
6860  **/
6861 static uint32_t
6862 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6863 {
6864         uint32_t intr_mode = LPFC_INTR_ERROR;
6865         int retval;
6866
6867         if (cfg_mode == 2) {
6868                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6869                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
6870                 if (!retval) {
6871                         /* Now, try to enable MSI-X interrupt mode */
6872                         retval = lpfc_sli_enable_msix(phba);
6873                         if (!retval) {
6874                                 /* Indicate initialization to MSI-X mode */
6875                                 phba->intr_type = MSIX;
6876                                 intr_mode = 2;
6877                         }
6878                 }
6879         }
6880
6881         /* Fallback to MSI if MSI-X initialization failed */
6882         if (cfg_mode >= 1 && phba->intr_type == NONE) {
6883                 retval = lpfc_sli_enable_msi(phba);
6884                 if (!retval) {
6885                         /* Indicate initialization to MSI mode */
6886                         phba->intr_type = MSI;
6887                         intr_mode = 1;
6888                 }
6889         }
6890
6891         /* Fallback to INTx if both MSI-X/MSI initalization failed */
6892         if (phba->intr_type == NONE) {
6893                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6894                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6895                 if (!retval) {
6896                         /* Indicate initialization to INTx mode */
6897                         phba->intr_type = INTx;
6898                         intr_mode = 0;
6899                 }
6900         }
6901         return intr_mode;
6902 }
6903
6904 /**
6905  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6906  * @phba: pointer to lpfc hba data structure.
6907  *
6908  * This routine is invoked to disable device interrupt and disassociate the
6909  * driver's interrupt handler(s) from interrupt vector(s) to device with
6910  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6911  * release the interrupt vector(s) for the message signaled interrupt.
6912  **/
6913 static void
6914 lpfc_sli_disable_intr(struct lpfc_hba *phba)
6915 {
6916         /* Disable the currently initialized interrupt mode */
6917         if (phba->intr_type == MSIX)
6918                 lpfc_sli_disable_msix(phba);
6919         else if (phba->intr_type == MSI)
6920                 lpfc_sli_disable_msi(phba);
6921         else if (phba->intr_type == INTx)
6922                 free_irq(phba->pcidev->irq, phba);
6923
6924         /* Reset interrupt management states */
6925         phba->intr_type = NONE;
6926         phba->sli.slistat.sli_intr = 0;
6927
6928         return;
6929 }
6930
6931 /**
6932  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6933  * @phba: pointer to lpfc hba data structure.
6934  *
6935  * This routine is invoked to enable the MSI-X interrupt vectors to device
6936  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6937  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6938  * enables either all or nothing, depending on the current availability of
6939  * PCI vector resources. The device driver is responsible for calling the
6940  * individual request_irq() to register each MSI-X vector with a interrupt
6941  * handler, which is done in this function. Note that later when device is
6942  * unloading, the driver should always call free_irq() on all MSI-X vectors
6943  * it has done request_irq() on before calling pci_disable_msix(). Failure
6944  * to do so results in a BUG_ON() and a device will be left with MSI-X
6945  * enabled and leaks its vectors.
6946  *
6947  * Return codes
6948  * 0 - successful
6949  * other values - error
6950  **/
6951 static int
6952 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
6953 {
6954         int rc, index;
6955
6956         /* Set up MSI-X multi-message vectors */
6957         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6958                 phba->sli4_hba.msix_entries[index].entry = index;
6959
6960         /* Configure MSI-X capability structure */
6961         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
6962                              phba->sli4_hba.cfg_eqn);
6963         if (rc) {
6964                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6965                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
6966                 goto msi_fail_out;
6967         }
6968         /* Log MSI-X vector assignment */
6969         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6970                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6971                                 "0489 MSI-X entry[%d]: vector=x%x "
6972                                 "message=%d\n", index,
6973                                 phba->sli4_hba.msix_entries[index].vector,
6974                                 phba->sli4_hba.msix_entries[index].entry);
6975         /*
6976          * Assign MSI-X vectors to interrupt handlers
6977          */
6978
6979         /* The first vector must associated to slow-path handler for MQ */
6980         rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
6981                          &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
6982                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
6983         if (rc) {
6984                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6985                                 "0485 MSI-X slow-path request_irq failed "
6986                                 "(%d)\n", rc);
6987                 goto msi_fail_out;
6988         }
6989
6990         /* The rest of the vector(s) are associated to fast-path handler(s) */
6991         for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) {
6992                 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
6993                 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
6994                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
6995                                  &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
6996                                  LPFC_FP_DRIVER_HANDLER_NAME,
6997                                  &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6998                 if (rc) {
6999                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7000                                         "0486 MSI-X fast-path (%d) "
7001                                         "request_irq failed (%d)\n", index, rc);
7002                         goto cfg_fail_out;
7003                 }
7004         }
7005
7006         return rc;
7007
7008 cfg_fail_out:
7009         /* free the irq already requested */
7010         for (--index; index >= 1; index--)
7011                 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7012                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7013
7014         /* free the irq already requested */
7015         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7016
7017 msi_fail_out:
7018         /* Unconfigure MSI-X capability structure */
7019         pci_disable_msix(phba->pcidev);
7020         return rc;
7021 }
7022
7023 /**
7024  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7025  * @phba: pointer to lpfc hba data structure.
7026  *
7027  * This routine is invoked to release the MSI-X vectors and then disable the
7028  * MSI-X interrupt mode to device with SLI-4 interface spec.
7029  **/
7030 static void
7031 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7032 {
7033         int index;
7034
7035         /* Free up MSI-X multi-message vectors */
7036         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7037
7038         for (index = 1; index < phba->sli4_hba.cfg_eqn; index++)
7039                 free_irq(phba->sli4_hba.msix_entries[index].vector,
7040                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7041         /* Disable MSI-X */
7042         pci_disable_msix(phba->pcidev);
7043
7044         return;
7045 }
7046
7047 /**
7048  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7049  * @phba: pointer to lpfc hba data structure.
7050  *
7051  * This routine is invoked to enable the MSI interrupt mode to device with
7052  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7053  * to enable the MSI vector. The device driver is responsible for calling
7054  * the request_irq() to register MSI vector with a interrupt the handler,
7055  * which is done in this function.
7056  *
7057  * Return codes
7058  *      0 - successful
7059  *      other values - error
7060  **/
7061 static int
7062 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7063 {
7064         int rc, index;
7065
7066         rc = pci_enable_msi(phba->pcidev);
7067         if (!rc)
7068                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7069                                 "0487 PCI enable MSI mode success.\n");
7070         else {
7071                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7072                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
7073                 return rc;
7074         }
7075
7076         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7077                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7078         if (rc) {
7079                 pci_disable_msi(phba->pcidev);
7080                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7081                                 "0490 MSI request_irq failed (%d)\n", rc);
7082         }
7083
7084         for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7085                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7086                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7087         }
7088
7089         return rc;
7090 }
7091
7092 /**
7093  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7094  * @phba: pointer to lpfc hba data structure.
7095  *
7096  * This routine is invoked to disable the MSI interrupt mode to device with
7097  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7098  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7099  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7100  * its vector.
7101  **/
7102 static void
7103 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7104 {
7105         free_irq(phba->pcidev->irq, phba);
7106         pci_disable_msi(phba->pcidev);
7107         return;
7108 }
7109
7110 /**
7111  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7112  * @phba: pointer to lpfc hba data structure.
7113  *
7114  * This routine is invoked to enable device interrupt and associate driver's
7115  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7116  * interface spec. Depends on the interrupt mode configured to the driver,
7117  * the driver will try to fallback from the configured interrupt mode to an
7118  * interrupt mode which is supported by the platform, kernel, and device in
7119  * the order of:
7120  * MSI-X -> MSI -> IRQ.
7121  *
7122  * Return codes
7123  *      0 - successful
7124  *      other values - error
7125  **/
7126 static uint32_t
7127 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7128 {
7129         uint32_t intr_mode = LPFC_INTR_ERROR;
7130         int retval, index;
7131
7132         if (cfg_mode == 2) {
7133                 /* Preparation before conf_msi mbox cmd */
7134                 retval = 0;
7135                 if (!retval) {
7136                         /* Now, try to enable MSI-X interrupt mode */
7137                         retval = lpfc_sli4_enable_msix(phba);
7138                         if (!retval) {
7139                                 /* Indicate initialization to MSI-X mode */
7140                                 phba->intr_type = MSIX;
7141                                 intr_mode = 2;
7142                         }
7143                 }
7144         }
7145
7146         /* Fallback to MSI if MSI-X initialization failed */
7147         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7148                 retval = lpfc_sli4_enable_msi(phba);
7149                 if (!retval) {
7150                         /* Indicate initialization to MSI mode */
7151                         phba->intr_type = MSI;
7152                         intr_mode = 1;
7153                 }
7154         }
7155
7156         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7157         if (phba->intr_type == NONE) {
7158                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7159                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7160                 if (!retval) {
7161                         /* Indicate initialization to INTx mode */
7162                         phba->intr_type = INTx;
7163                         intr_mode = 0;
7164                         for (index = 0; index < phba->cfg_fcp_eq_count;
7165                              index++) {
7166                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7167                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7168                         }
7169                 }
7170         }
7171         return intr_mode;
7172 }
7173
7174 /**
7175  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7176  * @phba: pointer to lpfc hba data structure.
7177  *
7178  * This routine is invoked to disable device interrupt and disassociate
7179  * the driver's interrupt handler(s) from interrupt vector(s) to device
7180  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7181  * will release the interrupt vector(s) for the message signaled interrupt.
7182  **/
7183 static void
7184 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7185 {
7186         /* Disable the currently initialized interrupt mode */
7187         if (phba->intr_type == MSIX)
7188                 lpfc_sli4_disable_msix(phba);
7189         else if (phba->intr_type == MSI)
7190                 lpfc_sli4_disable_msi(phba);
7191         else if (phba->intr_type == INTx)
7192                 free_irq(phba->pcidev->irq, phba);
7193
7194         /* Reset interrupt management states */
7195         phba->intr_type = NONE;
7196         phba->sli.slistat.sli_intr = 0;
7197
7198         return;
7199 }
7200
7201 /**
7202  * lpfc_unset_hba - Unset SLI3 hba device initialization
7203  * @phba: pointer to lpfc hba data structure.
7204  *
7205  * This routine is invoked to unset the HBA device initialization steps to
7206  * a device with SLI-3 interface spec.
7207  **/
7208 static void
7209 lpfc_unset_hba(struct lpfc_hba *phba)
7210 {
7211         struct lpfc_vport *vport = phba->pport;
7212         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7213
7214         spin_lock_irq(shost->host_lock);
7215         vport->load_flag |= FC_UNLOADING;
7216         spin_unlock_irq(shost->host_lock);
7217
7218         lpfc_stop_hba_timers(phba);
7219
7220         phba->pport->work_port_events = 0;
7221
7222         lpfc_sli_hba_down(phba);
7223
7224         lpfc_sli_brdrestart(phba);
7225
7226         lpfc_sli_disable_intr(phba);
7227
7228         return;
7229 }
7230
7231 /**
7232  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7233  * @phba: pointer to lpfc hba data structure.
7234  *
7235  * This routine is invoked to unset the HBA device initialization steps to
7236  * a device with SLI-4 interface spec.
7237  **/
7238 static void
7239 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7240 {
7241         struct lpfc_vport *vport = phba->pport;
7242         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7243
7244         spin_lock_irq(shost->host_lock);
7245         vport->load_flag |= FC_UNLOADING;
7246         spin_unlock_irq(shost->host_lock);
7247
7248         phba->pport->work_port_events = 0;
7249
7250         lpfc_sli4_hba_down(phba);
7251
7252         lpfc_sli4_disable_intr(phba);
7253
7254         return;
7255 }
7256
7257 /**
7258  * lpfc_sli4_hba_unset - Unset the fcoe hba
7259  * @phba: Pointer to HBA context object.
7260  *
7261  * This function is called in the SLI4 code path to reset the HBA's FCoE
7262  * function. The caller is not required to hold any lock. This routine
7263  * issues PCI function reset mailbox command to reset the FCoE function.
7264  * At the end of the function, it calls lpfc_hba_down_post function to
7265  * free any pending commands.
7266  **/
7267 static void
7268 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7269 {
7270         int wait_cnt = 0;
7271         LPFC_MBOXQ_t *mboxq;
7272
7273         lpfc_stop_hba_timers(phba);
7274         phba->sli4_hba.intr_enable = 0;
7275
7276         /*
7277          * Gracefully wait out the potential current outstanding asynchronous
7278          * mailbox command.
7279          */
7280
7281         /* First, block any pending async mailbox command from posted */
7282         spin_lock_irq(&phba->hbalock);
7283         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7284         spin_unlock_irq(&phba->hbalock);
7285         /* Now, trying to wait it out if we can */
7286         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7287                 msleep(10);
7288                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
7289                         break;
7290         }
7291         /* Forcefully release the outstanding mailbox command if timed out */
7292         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7293                 spin_lock_irq(&phba->hbalock);
7294                 mboxq = phba->sli.mbox_active;
7295                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7296                 __lpfc_mbox_cmpl_put(phba, mboxq);
7297                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7298                 phba->sli.mbox_active = NULL;
7299                 spin_unlock_irq(&phba->hbalock);
7300         }
7301
7302         /* Tear down the queues in the HBA */
7303         lpfc_sli4_queue_unset(phba);
7304
7305         /* Disable PCI subsystem interrupt */
7306         lpfc_sli4_disable_intr(phba);
7307
7308         /* Stop kthread signal shall trigger work_done one more time */
7309         kthread_stop(phba->worker_thread);
7310
7311         /* Stop the SLI4 device port */
7312         phba->pport->work_port_events = 0;
7313 }
7314
7315  /**
7316  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7317  * @phba: Pointer to HBA context object.
7318  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7319  *
7320  * This function is called in the SLI4 code path to read the port's
7321  * sli4 capabilities.
7322  *
7323  * This function may be be called from any context that can block-wait
7324  * for the completion.  The expectation is that this routine is called
7325  * typically from probe_one or from the online routine.
7326  **/
7327 int
7328 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7329 {
7330         int rc;
7331         struct lpfc_mqe *mqe;
7332         struct lpfc_pc_sli4_params *sli4_params;
7333         uint32_t mbox_tmo;
7334
7335         rc = 0;
7336         mqe = &mboxq->u.mqe;
7337
7338         /* Read the port's SLI4 Parameters port capabilities */
7339         lpfc_sli4_params(mboxq);
7340         if (!phba->sli4_hba.intr_enable)
7341                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7342         else {
7343                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
7344                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7345         }
7346
7347         if (unlikely(rc))
7348                 return 1;
7349
7350         sli4_params = &phba->sli4_hba.pc_sli4_params;
7351         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
7352         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
7353         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
7354         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
7355                                              &mqe->un.sli4_params);
7356         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
7357                                              &mqe->un.sli4_params);
7358         sli4_params->proto_types = mqe->un.sli4_params.word3;
7359         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
7360         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
7361         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
7362         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
7363         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
7364         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
7365         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
7366         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
7367         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
7368         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
7369         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
7370         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
7371         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
7372         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
7373         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
7374         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
7375         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
7376         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
7377         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
7378         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
7379         return rc;
7380 }
7381
7382 /**
7383  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7384  * @pdev: pointer to PCI device
7385  * @pid: pointer to PCI device identifier
7386  *
7387  * This routine is to be called to attach a device with SLI-3 interface spec
7388  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7389  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7390  * information of the device and driver to see if the driver state that it can
7391  * support this kind of device. If the match is successful, the driver core
7392  * invokes this routine. If this routine determines it can claim the HBA, it
7393  * does all the initialization that it needs to do to handle the HBA properly.
7394  *
7395  * Return code
7396  *      0 - driver can claim the device
7397  *      negative value - driver can not claim the device
7398  **/
7399 static int __devinit
7400 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
7401 {
7402         struct lpfc_hba   *phba;
7403         struct lpfc_vport *vport = NULL;
7404         struct Scsi_Host  *shost = NULL;
7405         int error;
7406         uint32_t cfg_mode, intr_mode;
7407
7408         /* Allocate memory for HBA structure */
7409         phba = lpfc_hba_alloc(pdev);
7410         if (!phba)
7411                 return -ENOMEM;
7412
7413         /* Perform generic PCI device enabling operation */
7414         error = lpfc_enable_pci_dev(phba);
7415         if (error) {
7416                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7417                                 "1401 Failed to enable pci device.\n");
7418                 goto out_free_phba;
7419         }
7420
7421         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7422         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
7423         if (error)
7424                 goto out_disable_pci_dev;
7425
7426         /* Set up SLI-3 specific device PCI memory space */
7427         error = lpfc_sli_pci_mem_setup(phba);
7428         if (error) {
7429                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7430                                 "1402 Failed to set up pci memory space.\n");
7431                 goto out_disable_pci_dev;
7432         }
7433
7434         /* Set up phase-1 common device driver resources */
7435         error = lpfc_setup_driver_resource_phase1(phba);
7436         if (error) {
7437                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7438                                 "1403 Failed to set up driver resource.\n");
7439                 goto out_unset_pci_mem_s3;
7440         }
7441
7442         /* Set up SLI-3 specific device driver resources */
7443         error = lpfc_sli_driver_resource_setup(phba);
7444         if (error) {
7445                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7446                                 "1404 Failed to set up driver resource.\n");
7447                 goto out_unset_pci_mem_s3;
7448         }
7449
7450         /* Initialize and populate the iocb list per host */
7451         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
7452         if (error) {
7453                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7454                                 "1405 Failed to initialize iocb list.\n");
7455                 goto out_unset_driver_resource_s3;
7456         }
7457
7458         /* Set up common device driver resources */
7459         error = lpfc_setup_driver_resource_phase2(phba);
7460         if (error) {
7461                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7462                                 "1406 Failed to set up driver resource.\n");
7463                 goto out_free_iocb_list;
7464         }
7465
7466         /* Create SCSI host to the physical port */
7467         error = lpfc_create_shost(phba);
7468         if (error) {
7469                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7470                                 "1407 Failed to create scsi host.\n");
7471                 goto out_unset_driver_resource;
7472         }
7473
7474         /* Configure sysfs attributes */
7475         vport = phba->pport;
7476         error = lpfc_alloc_sysfs_attr(vport);
7477         if (error) {
7478                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7479                                 "1476 Failed to allocate sysfs attr\n");
7480                 goto out_destroy_shost;
7481         }
7482
7483         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
7484         /* Now, trying to enable interrupt and bring up the device */
7485         cfg_mode = phba->cfg_use_msi;
7486         while (true) {
7487                 /* Put device to a known state before enabling interrupt */
7488                 lpfc_stop_port(phba);
7489                 /* Configure and enable interrupt */
7490                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
7491                 if (intr_mode == LPFC_INTR_ERROR) {
7492                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7493                                         "0431 Failed to enable interrupt.\n");
7494                         error = -ENODEV;
7495                         goto out_free_sysfs_attr;
7496                 }
7497                 /* SLI-3 HBA setup */
7498                 if (lpfc_sli_hba_setup(phba)) {
7499                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7500                                         "1477 Failed to set up hba\n");
7501                         error = -ENODEV;
7502                         goto out_remove_device;
7503                 }
7504
7505                 /* Wait 50ms for the interrupts of previous mailbox commands */
7506                 msleep(50);
7507                 /* Check active interrupts on message signaled interrupts */
7508                 if (intr_mode == 0 ||
7509                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
7510                         /* Log the current active interrupt mode */
7511                         phba->intr_mode = intr_mode;
7512                         lpfc_log_intr_mode(phba, intr_mode);
7513                         break;
7514                 } else {
7515                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7516                                         "0447 Configure interrupt mode (%d) "
7517                                         "failed active interrupt test.\n",
7518                                         intr_mode);
7519                         /* Disable the current interrupt mode */
7520                         lpfc_sli_disable_intr(phba);
7521                         /* Try next level of interrupt mode */
7522                         cfg_mode = --intr_mode;
7523                 }
7524         }
7525
7526         /* Perform post initialization setup */
7527         lpfc_post_init_setup(phba);
7528
7529         /* Check if there are static vports to be created. */
7530         lpfc_create_static_vport(phba);
7531
7532         return 0;
7533
7534 out_remove_device:
7535         lpfc_unset_hba(phba);
7536 out_free_sysfs_attr:
7537         lpfc_free_sysfs_attr(vport);
7538 out_destroy_shost:
7539         lpfc_destroy_shost(phba);
7540 out_unset_driver_resource:
7541         lpfc_unset_driver_resource_phase2(phba);
7542 out_free_iocb_list:
7543         lpfc_free_iocb_list(phba);
7544 out_unset_driver_resource_s3:
7545         lpfc_sli_driver_resource_unset(phba);
7546 out_unset_pci_mem_s3:
7547         lpfc_sli_pci_mem_unset(phba);
7548 out_disable_pci_dev:
7549         lpfc_disable_pci_dev(phba);
7550         if (shost)
7551                 scsi_host_put(shost);
7552 out_free_phba:
7553         lpfc_hba_free(phba);
7554         return error;
7555 }
7556
7557 /**
7558  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
7559  * @pdev: pointer to PCI device
7560  *
7561  * This routine is to be called to disattach a device with SLI-3 interface
7562  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7563  * removed from PCI bus, it performs all the necessary cleanup for the HBA
7564  * device to be removed from the PCI subsystem properly.
7565  **/
7566 static void __devexit
7567 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
7568 {
7569         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
7570         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7571         struct lpfc_vport **vports;
7572         struct lpfc_hba   *phba = vport->phba;
7573         int i;
7574         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
7575
7576         spin_lock_irq(&phba->hbalock);
7577         vport->load_flag |= FC_UNLOADING;
7578         spin_unlock_irq(&phba->hbalock);
7579
7580         lpfc_free_sysfs_attr(vport);
7581
7582         /* Release all the vports against this physical port */
7583         vports = lpfc_create_vport_work_array(phba);
7584         if (vports != NULL)
7585                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
7586                         fc_vport_terminate(vports[i]->fc_vport);
7587         lpfc_destroy_vport_work_array(phba, vports);
7588
7589         /* Remove FC host and then SCSI host with the physical port */
7590         fc_remove_host(shost);
7591         scsi_remove_host(shost);
7592         lpfc_cleanup(vport);
7593
7594         /*
7595          * Bring down the SLI Layer. This step disable all interrupts,
7596          * clears the rings, discards all mailbox commands, and resets
7597          * the HBA.
7598          */
7599
7600         /* HBA interrupt will be diabled after this call */
7601         lpfc_sli_hba_down(phba);
7602         /* Stop kthread signal shall trigger work_done one more time */
7603         kthread_stop(phba->worker_thread);
7604         /* Final cleanup of txcmplq and reset the HBA */
7605         lpfc_sli_brdrestart(phba);
7606
7607         lpfc_stop_hba_timers(phba);
7608         spin_lock_irq(&phba->hbalock);
7609         list_del_init(&vport->listentry);
7610         spin_unlock_irq(&phba->hbalock);
7611
7612         lpfc_debugfs_terminate(vport);
7613
7614         /* Disable interrupt */
7615         lpfc_sli_disable_intr(phba);
7616
7617         pci_set_drvdata(pdev, NULL);
7618         scsi_host_put(shost);
7619
7620         /*
7621          * Call scsi_free before mem_free since scsi bufs are released to their
7622          * corresponding pools here.
7623          */
7624         lpfc_scsi_free(phba);
7625         lpfc_mem_free_all(phba);
7626
7627         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7628                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7629
7630         /* Free resources associated with SLI2 interface */
7631         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7632                           phba->slim2p.virt, phba->slim2p.phys);
7633
7634         /* unmap adapter SLIM and Control Registers */
7635         iounmap(phba->ctrl_regs_memmap_p);
7636         iounmap(phba->slim_memmap_p);
7637
7638         lpfc_hba_free(phba);
7639
7640         pci_release_selected_regions(pdev, bars);
7641         pci_disable_device(pdev);
7642 }
7643
7644 /**
7645  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7646  * @pdev: pointer to PCI device
7647  * @msg: power management message
7648  *
7649  * This routine is to be called from the kernel's PCI subsystem to support
7650  * system Power Management (PM) to device with SLI-3 interface spec. When
7651  * PM invokes this method, it quiesces the device by stopping the driver's
7652  * worker thread for the device, turning off device's interrupt and DMA,
7653  * and bring the device offline. Note that as the driver implements the
7654  * minimum PM requirements to a power-aware driver's PM support for the
7655  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7656  * to the suspend() method call will be treated as SUSPEND and the driver will
7657  * fully reinitialize its device during resume() method call, the driver will
7658  * set device to PCI_D3hot state in PCI config space instead of setting it
7659  * according to the @msg provided by the PM.
7660  *
7661  * Return code
7662  *      0 - driver suspended the device
7663  *      Error otherwise
7664  **/
7665 static int
7666 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
7667 {
7668         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7669         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7670
7671         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7672                         "0473 PCI device Power Management suspend.\n");
7673
7674         /* Bring down the device */
7675         lpfc_offline_prep(phba);
7676         lpfc_offline(phba);
7677         kthread_stop(phba->worker_thread);
7678
7679         /* Disable interrupt from device */
7680         lpfc_sli_disable_intr(phba);
7681
7682         /* Save device state to PCI config space */
7683         pci_save_state(pdev);
7684         pci_set_power_state(pdev, PCI_D3hot);
7685
7686         return 0;
7687 }
7688
7689 /**
7690  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7691  * @pdev: pointer to PCI device
7692  *
7693  * This routine is to be called from the kernel's PCI subsystem to support
7694  * system Power Management (PM) to device with SLI-3 interface spec. When PM
7695  * invokes this method, it restores the device's PCI config space state and
7696  * fully reinitializes the device and brings it online. Note that as the
7697  * driver implements the minimum PM requirements to a power-aware driver's
7698  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7699  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7700  * driver will fully reinitialize its device during resume() method call,
7701  * the device will be set to PCI_D0 directly in PCI config space before
7702  * restoring the state.
7703  *
7704  * Return code
7705  *      0 - driver suspended the device
7706  *      Error otherwise
7707  **/
7708 static int
7709 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
7710 {
7711         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7712         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7713         uint32_t intr_mode;
7714         int error;
7715
7716         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7717                         "0452 PCI device Power Management resume.\n");
7718
7719         /* Restore device state from PCI config space */
7720         pci_set_power_state(pdev, PCI_D0);
7721         pci_restore_state(pdev);
7722
7723         /*
7724          * As the new kernel behavior of pci_restore_state() API call clears
7725          * device saved_state flag, need to save the restored state again.
7726          */
7727         pci_save_state(pdev);
7728
7729         if (pdev->is_busmaster)
7730                 pci_set_master(pdev);
7731
7732         /* Startup the kernel thread for this host adapter. */
7733         phba->worker_thread = kthread_run(lpfc_do_work, phba,
7734                                         "lpfc_worker_%d", phba->brd_no);
7735         if (IS_ERR(phba->worker_thread)) {
7736                 error = PTR_ERR(phba->worker_thread);
7737                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7738                                 "0434 PM resume failed to start worker "
7739                                 "thread: error=x%x.\n", error);
7740                 return error;
7741         }
7742
7743         /* Configure and enable interrupt */
7744         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7745         if (intr_mode == LPFC_INTR_ERROR) {
7746                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7747                                 "0430 PM resume Failed to enable interrupt\n");
7748                 return -EIO;
7749         } else
7750                 phba->intr_mode = intr_mode;
7751
7752         /* Restart HBA and bring it online */
7753         lpfc_sli_brdrestart(phba);
7754         lpfc_online(phba);
7755
7756         /* Log the current active interrupt mode */
7757         lpfc_log_intr_mode(phba, phba->intr_mode);
7758
7759         return 0;
7760 }
7761
7762 /**
7763  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
7764  * @phba: pointer to lpfc hba data structure.
7765  *
7766  * This routine is called to prepare the SLI3 device for PCI slot recover. It
7767  * aborts and stops all the on-going I/Os on the pci device.
7768  **/
7769 static void
7770 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
7771 {
7772         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7773                         "2723 PCI channel I/O abort preparing for recovery\n");
7774         /* Prepare for bringing HBA offline */
7775         lpfc_offline_prep(phba);
7776         /* Clear sli active flag to prevent sysfs access to HBA */
7777         spin_lock_irq(&phba->hbalock);
7778         phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
7779         spin_unlock_irq(&phba->hbalock);
7780         /* Stop and flush all I/Os and bring HBA offline */
7781         lpfc_offline(phba);
7782 }
7783
7784 /**
7785  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7786  * @phba: pointer to lpfc hba data structure.
7787  *
7788  * This routine is called to prepare the SLI3 device for PCI slot reset. It
7789  * disables the device interrupt and pci device, and aborts the internal FCP
7790  * pending I/Os.
7791  **/
7792 static void
7793 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
7794 {
7795         struct lpfc_sli *psli = &phba->sli;
7796         struct lpfc_sli_ring  *pring;
7797
7798         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7799                         "2710 PCI channel disable preparing for reset\n");
7800         /* Disable interrupt and pci device */
7801         lpfc_sli_disable_intr(phba);
7802         pci_disable_device(phba->pcidev);
7803         /*
7804          * There may be I/Os dropped by the firmware.
7805          * Error iocb (I/O) on txcmplq and let the SCSI layer
7806          * retry it after re-establishing link.
7807          */
7808         pring = &psli->ring[psli->fcp_ring];
7809         lpfc_sli_abort_iocb_ring(phba, pring);
7810 }
7811
7812 /**
7813  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7814  * @phba: pointer to lpfc hba data structure.
7815  *
7816  * This routine is called to prepare the SLI3 device for PCI slot permanently
7817  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7818  * pending I/Os.
7819  **/
7820 static void
7821 lpfc_prep_dev_for_perm_failure(struct lpfc_hba *phba)
7822 {
7823         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7824                         "2711 PCI channel permanent disable for failure\n");
7825         /* Clean up all driver's outstanding SCSI I/Os */
7826         lpfc_sli_flush_fcp_rings(phba);
7827 }
7828
7829 /**
7830  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7831  * @pdev: pointer to PCI device.
7832  * @state: the current PCI connection state.
7833  *
7834  * This routine is called from the PCI subsystem for I/O error handling to
7835  * device with SLI-3 interface spec. This function is called by the PCI
7836  * subsystem after a PCI bus error affecting this device has been detected.
7837  * When this function is invoked, it will need to stop all the I/Os and
7838  * interrupt(s) to the device. Once that is done, it will return
7839  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7840  * as desired.
7841  *
7842  * Return codes
7843  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7844  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7845  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7846  **/
7847 static pci_ers_result_t
7848 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
7849 {
7850         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7851         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7852
7853         /* Block all SCSI devices' I/Os on the host */
7854         lpfc_scsi_dev_block(phba);
7855
7856         switch (state) {
7857         case pci_channel_io_normal:
7858                 /* Non-fatal error, prepare for recovery */
7859                 lpfc_sli_prep_dev_for_recover(phba);
7860                 return PCI_ERS_RESULT_CAN_RECOVER;
7861         case pci_channel_io_frozen:
7862                 /* Fatal error, prepare for slot reset */
7863                 lpfc_sli_prep_dev_for_reset(phba);
7864                 return PCI_ERS_RESULT_NEED_RESET;
7865         case pci_channel_io_perm_failure:
7866                 /* Permanent failure, prepare for device down */
7867                 lpfc_prep_dev_for_perm_failure(phba);
7868                 return PCI_ERS_RESULT_DISCONNECT;
7869         default:
7870                 /* Unknown state, prepare and request slot reset */
7871                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7872                                 "0472 Unknown PCI error state: x%x\n", state);
7873                 lpfc_sli_prep_dev_for_reset(phba);
7874                 return PCI_ERS_RESULT_NEED_RESET;
7875         }
7876 }
7877
7878 /**
7879  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7880  * @pdev: pointer to PCI device.
7881  *
7882  * This routine is called from the PCI subsystem for error handling to
7883  * device with SLI-3 interface spec. This is called after PCI bus has been
7884  * reset to restart the PCI card from scratch, as if from a cold-boot.
7885  * During the PCI subsystem error recovery, after driver returns
7886  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7887  * recovery and then call this routine before calling the .resume method
7888  * to recover the device. This function will initialize the HBA device,
7889  * enable the interrupt, but it will just put the HBA to offline state
7890  * without passing any I/O traffic.
7891  *
7892  * Return codes
7893  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
7894  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7895  */
7896 static pci_ers_result_t
7897 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
7898 {
7899         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7900         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7901         struct lpfc_sli *psli = &phba->sli;
7902         uint32_t intr_mode;
7903
7904         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
7905         if (pci_enable_device_mem(pdev)) {
7906                 printk(KERN_ERR "lpfc: Cannot re-enable "
7907                         "PCI device after reset.\n");
7908                 return PCI_ERS_RESULT_DISCONNECT;
7909         }
7910
7911         pci_restore_state(pdev);
7912
7913         /*
7914          * As the new kernel behavior of pci_restore_state() API call clears
7915          * device saved_state flag, need to save the restored state again.
7916          */
7917         pci_save_state(pdev);
7918
7919         if (pdev->is_busmaster)
7920                 pci_set_master(pdev);
7921
7922         spin_lock_irq(&phba->hbalock);
7923         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7924         spin_unlock_irq(&phba->hbalock);
7925
7926         /* Configure and enable interrupt */
7927         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7928         if (intr_mode == LPFC_INTR_ERROR) {
7929                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7930                                 "0427 Cannot re-enable interrupt after "
7931                                 "slot reset.\n");
7932                 return PCI_ERS_RESULT_DISCONNECT;
7933         } else
7934                 phba->intr_mode = intr_mode;
7935
7936         /* Take device offline; this will perform cleanup */
7937         lpfc_offline(phba);
7938         lpfc_sli_brdrestart(phba);
7939
7940         /* Log the current active interrupt mode */
7941         lpfc_log_intr_mode(phba, phba->intr_mode);
7942
7943         return PCI_ERS_RESULT_RECOVERED;
7944 }
7945
7946 /**
7947  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
7948  * @pdev: pointer to PCI device
7949  *
7950  * This routine is called from the PCI subsystem for error handling to device
7951  * with SLI-3 interface spec. It is called when kernel error recovery tells
7952  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7953  * error recovery. After this call, traffic can start to flow from this device
7954  * again.
7955  */
7956 static void
7957 lpfc_io_resume_s3(struct pci_dev *pdev)
7958 {
7959         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7960         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7961
7962         /* Bring the device online */
7963         lpfc_online(phba);
7964
7965         /* Clean up Advanced Error Reporting (AER) if needed */
7966         if (phba->hba_flag & HBA_AER_ENABLED)
7967                 pci_cleanup_aer_uncorrect_error_status(pdev);
7968 }
7969
7970 /**
7971  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
7972  * @phba: pointer to lpfc hba data structure.
7973  *
7974  * returns the number of ELS/CT IOCBs to reserve
7975  **/
7976 int
7977 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
7978 {
7979         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
7980
7981         if (phba->sli_rev == LPFC_SLI_REV4) {
7982                 if (max_xri <= 100)
7983                         return 10;
7984                 else if (max_xri <= 256)
7985                         return 25;
7986                 else if (max_xri <= 512)
7987                         return 50;
7988                 else if (max_xri <= 1024)
7989                         return 100;
7990                 else
7991                         return 150;
7992         } else
7993                 return 0;
7994 }
7995
7996 /**
7997  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
7998  * @pdev: pointer to PCI device
7999  * @pid: pointer to PCI device identifier
8000  *
8001  * This routine is called from the kernel's PCI subsystem to device with
8002  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8003  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8004  * information of the device and driver to see if the driver state that it
8005  * can support this kind of device. If the match is successful, the driver
8006  * core invokes this routine. If this routine determines it can claim the HBA,
8007  * it does all the initialization that it needs to do to handle the HBA
8008  * properly.
8009  *
8010  * Return code
8011  *      0 - driver can claim the device
8012  *      negative value - driver can not claim the device
8013  **/
8014 static int __devinit
8015 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8016 {
8017         struct lpfc_hba   *phba;
8018         struct lpfc_vport *vport = NULL;
8019         struct Scsi_Host  *shost = NULL;
8020         int error;
8021         uint32_t cfg_mode, intr_mode;
8022         int mcnt;
8023
8024         /* Allocate memory for HBA structure */
8025         phba = lpfc_hba_alloc(pdev);
8026         if (!phba)
8027                 return -ENOMEM;
8028
8029         /* Perform generic PCI device enabling operation */
8030         error = lpfc_enable_pci_dev(phba);
8031         if (error) {
8032                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8033                                 "1409 Failed to enable pci device.\n");
8034                 goto out_free_phba;
8035         }
8036
8037         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8038         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
8039         if (error)
8040                 goto out_disable_pci_dev;
8041
8042         /* Set up SLI-4 specific device PCI memory space */
8043         error = lpfc_sli4_pci_mem_setup(phba);
8044         if (error) {
8045                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8046                                 "1410 Failed to set up pci memory space.\n");
8047                 goto out_disable_pci_dev;
8048         }
8049
8050         /* Set up phase-1 common device driver resources */
8051         error = lpfc_setup_driver_resource_phase1(phba);
8052         if (error) {
8053                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8054                                 "1411 Failed to set up driver resource.\n");
8055                 goto out_unset_pci_mem_s4;
8056         }
8057
8058         /* Set up SLI-4 Specific device driver resources */
8059         error = lpfc_sli4_driver_resource_setup(phba);
8060         if (error) {
8061                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8062                                 "1412 Failed to set up driver resource.\n");
8063                 goto out_unset_pci_mem_s4;
8064         }
8065
8066         /* Initialize and populate the iocb list per host */
8067         error = lpfc_init_iocb_list(phba,
8068                         phba->sli4_hba.max_cfg_param.max_xri);
8069         if (error) {
8070                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8071                                 "1413 Failed to initialize iocb list.\n");
8072                 goto out_unset_driver_resource_s4;
8073         }
8074
8075         /* Set up common device driver resources */
8076         error = lpfc_setup_driver_resource_phase2(phba);
8077         if (error) {
8078                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8079                                 "1414 Failed to set up driver resource.\n");
8080                 goto out_free_iocb_list;
8081         }
8082
8083         /* Create SCSI host to the physical port */
8084         error = lpfc_create_shost(phba);
8085         if (error) {
8086                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8087                                 "1415 Failed to create scsi host.\n");
8088                 goto out_unset_driver_resource;
8089         }
8090
8091         /* Configure sysfs attributes */
8092         vport = phba->pport;
8093         error = lpfc_alloc_sysfs_attr(vport);
8094         if (error) {
8095                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8096                                 "1416 Failed to allocate sysfs attr\n");
8097                 goto out_destroy_shost;
8098         }
8099
8100         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8101         /* Now, trying to enable interrupt and bring up the device */
8102         cfg_mode = phba->cfg_use_msi;
8103         while (true) {
8104                 /* Put device to a known state before enabling interrupt */
8105                 lpfc_stop_port(phba);
8106                 /* Configure and enable interrupt */
8107                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
8108                 if (intr_mode == LPFC_INTR_ERROR) {
8109                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8110                                         "0426 Failed to enable interrupt.\n");
8111                         error = -ENODEV;
8112                         goto out_free_sysfs_attr;
8113                 }
8114                 /* Default to single FCP EQ for non-MSI-X */
8115                 if (phba->intr_type != MSIX)
8116                         phba->cfg_fcp_eq_count = 1;
8117                 /* Set up SLI-4 HBA */
8118                 if (lpfc_sli4_hba_setup(phba)) {
8119                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8120                                         "1421 Failed to set up hba\n");
8121                         error = -ENODEV;
8122                         goto out_disable_intr;
8123                 }
8124
8125                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8126                 if (intr_mode != 0)
8127                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
8128                                                             LPFC_ACT_INTR_CNT);
8129
8130                 /* Check active interrupts received only for MSI/MSI-X */
8131                 if (intr_mode == 0 ||
8132                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
8133                         /* Log the current active interrupt mode */
8134                         phba->intr_mode = intr_mode;
8135                         lpfc_log_intr_mode(phba, intr_mode);
8136                         break;
8137                 }
8138                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8139                                 "0451 Configure interrupt mode (%d) "
8140                                 "failed active interrupt test.\n",
8141                                 intr_mode);
8142                 /* Unset the preivous SLI-4 HBA setup */
8143                 lpfc_sli4_unset_hba(phba);
8144                 /* Try next level of interrupt mode */
8145                 cfg_mode = --intr_mode;
8146         }
8147
8148         /* Perform post initialization setup */
8149         lpfc_post_init_setup(phba);
8150
8151         /* Check if there are static vports to be created. */
8152         lpfc_create_static_vport(phba);
8153
8154         return 0;
8155
8156 out_disable_intr:
8157         lpfc_sli4_disable_intr(phba);
8158 out_free_sysfs_attr:
8159         lpfc_free_sysfs_attr(vport);
8160 out_destroy_shost:
8161         lpfc_destroy_shost(phba);
8162 out_unset_driver_resource:
8163         lpfc_unset_driver_resource_phase2(phba);
8164 out_free_iocb_list:
8165         lpfc_free_iocb_list(phba);
8166 out_unset_driver_resource_s4:
8167         lpfc_sli4_driver_resource_unset(phba);
8168 out_unset_pci_mem_s4:
8169         lpfc_sli4_pci_mem_unset(phba);
8170 out_disable_pci_dev:
8171         lpfc_disable_pci_dev(phba);
8172         if (shost)
8173                 scsi_host_put(shost);
8174 out_free_phba:
8175         lpfc_hba_free(phba);
8176         return error;
8177 }
8178
8179 /**
8180  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8181  * @pdev: pointer to PCI device
8182  *
8183  * This routine is called from the kernel's PCI subsystem to device with
8184  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8185  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8186  * device to be removed from the PCI subsystem properly.
8187  **/
8188 static void __devexit
8189 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
8190 {
8191         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8192         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8193         struct lpfc_vport **vports;
8194         struct lpfc_hba *phba = vport->phba;
8195         int i;
8196
8197         /* Mark the device unloading flag */
8198         spin_lock_irq(&phba->hbalock);
8199         vport->load_flag |= FC_UNLOADING;
8200         spin_unlock_irq(&phba->hbalock);
8201
8202         /* Free the HBA sysfs attributes */
8203         lpfc_free_sysfs_attr(vport);
8204
8205         /* Release all the vports against this physical port */
8206         vports = lpfc_create_vport_work_array(phba);
8207         if (vports != NULL)
8208                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8209                         fc_vport_terminate(vports[i]->fc_vport);
8210         lpfc_destroy_vport_work_array(phba, vports);
8211
8212         /* Remove FC host and then SCSI host with the physical port */
8213         fc_remove_host(shost);
8214         scsi_remove_host(shost);
8215
8216         /* Perform cleanup on the physical port */
8217         lpfc_cleanup(vport);
8218
8219         /*
8220          * Bring down the SLI Layer. This step disables all interrupts,
8221          * clears the rings, discards all mailbox commands, and resets
8222          * the HBA FCoE function.
8223          */
8224         lpfc_debugfs_terminate(vport);
8225         lpfc_sli4_hba_unset(phba);
8226
8227         spin_lock_irq(&phba->hbalock);
8228         list_del_init(&vport->listentry);
8229         spin_unlock_irq(&phba->hbalock);
8230
8231         /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi
8232          * buffers are released to their corresponding pools here.
8233          */
8234         lpfc_scsi_free(phba);
8235         lpfc_sli4_driver_resource_unset(phba);
8236
8237         /* Unmap adapter Control and Doorbell registers */
8238         lpfc_sli4_pci_mem_unset(phba);
8239
8240         /* Release PCI resources and disable device's PCI function */
8241         scsi_host_put(shost);
8242         lpfc_disable_pci_dev(phba);
8243
8244         /* Finally, free the driver's device data structure */
8245         lpfc_hba_free(phba);
8246
8247         return;
8248 }
8249
8250 /**
8251  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8252  * @pdev: pointer to PCI device
8253  * @msg: power management message
8254  *
8255  * This routine is called from the kernel's PCI subsystem to support system
8256  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8257  * this method, it quiesces the device by stopping the driver's worker
8258  * thread for the device, turning off device's interrupt and DMA, and bring
8259  * the device offline. Note that as the driver implements the minimum PM
8260  * requirements to a power-aware driver's PM support for suspend/resume -- all
8261  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8262  * method call will be treated as SUSPEND and the driver will fully
8263  * reinitialize its device during resume() method call, the driver will set
8264  * device to PCI_D3hot state in PCI config space instead of setting it
8265  * according to the @msg provided by the PM.
8266  *
8267  * Return code
8268  *      0 - driver suspended the device
8269  *      Error otherwise
8270  **/
8271 static int
8272 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
8273 {
8274         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8275         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8276
8277         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8278                         "0298 PCI device Power Management suspend.\n");
8279
8280         /* Bring down the device */
8281         lpfc_offline_prep(phba);
8282         lpfc_offline(phba);
8283         kthread_stop(phba->worker_thread);
8284
8285         /* Disable interrupt from device */
8286         lpfc_sli4_disable_intr(phba);
8287
8288         /* Save device state to PCI config space */
8289         pci_save_state(pdev);
8290         pci_set_power_state(pdev, PCI_D3hot);
8291
8292         return 0;
8293 }
8294
8295 /**
8296  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8297  * @pdev: pointer to PCI device
8298  *
8299  * This routine is called from the kernel's PCI subsystem to support system
8300  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8301  * this method, it restores the device's PCI config space state and fully
8302  * reinitializes the device and brings it online. Note that as the driver
8303  * implements the minimum PM requirements to a power-aware driver's PM for
8304  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8305  * to the suspend() method call will be treated as SUSPEND and the driver
8306  * will fully reinitialize its device during resume() method call, the device
8307  * will be set to PCI_D0 directly in PCI config space before restoring the
8308  * state.
8309  *
8310  * Return code
8311  *      0 - driver suspended the device
8312  *      Error otherwise
8313  **/
8314 static int
8315 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
8316 {
8317         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8318         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8319         uint32_t intr_mode;
8320         int error;
8321
8322         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8323                         "0292 PCI device Power Management resume.\n");
8324
8325         /* Restore device state from PCI config space */
8326         pci_set_power_state(pdev, PCI_D0);
8327         pci_restore_state(pdev);
8328
8329         /*
8330          * As the new kernel behavior of pci_restore_state() API call clears
8331          * device saved_state flag, need to save the restored state again.
8332          */
8333         pci_save_state(pdev);
8334
8335         if (pdev->is_busmaster)
8336                 pci_set_master(pdev);
8337
8338          /* Startup the kernel thread for this host adapter. */
8339         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8340                                         "lpfc_worker_%d", phba->brd_no);
8341         if (IS_ERR(phba->worker_thread)) {
8342                 error = PTR_ERR(phba->worker_thread);
8343                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8344                                 "0293 PM resume failed to start worker "
8345                                 "thread: error=x%x.\n", error);
8346                 return error;
8347         }
8348
8349         /* Configure and enable interrupt */
8350         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8351         if (intr_mode == LPFC_INTR_ERROR) {
8352                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8353                                 "0294 PM resume Failed to enable interrupt\n");
8354                 return -EIO;
8355         } else
8356                 phba->intr_mode = intr_mode;
8357
8358         /* Restart HBA and bring it online */
8359         lpfc_sli_brdrestart(phba);
8360         lpfc_online(phba);
8361
8362         /* Log the current active interrupt mode */
8363         lpfc_log_intr_mode(phba, phba->intr_mode);
8364
8365         return 0;
8366 }
8367
8368 /**
8369  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8370  * @pdev: pointer to PCI device.
8371  * @state: the current PCI connection state.
8372  *
8373  * This routine is called from the PCI subsystem for error handling to device
8374  * with SLI-4 interface spec. This function is called by the PCI subsystem
8375  * after a PCI bus error affecting this device has been detected. When this
8376  * function is invoked, it will need to stop all the I/Os and interrupt(s)
8377  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
8378  * for the PCI subsystem to perform proper recovery as desired.
8379  *
8380  * Return codes
8381  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8382  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8383  **/
8384 static pci_ers_result_t
8385 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8386 {
8387         return PCI_ERS_RESULT_NEED_RESET;
8388 }
8389
8390 /**
8391  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8392  * @pdev: pointer to PCI device.
8393  *
8394  * This routine is called from the PCI subsystem for error handling to device
8395  * with SLI-4 interface spec. It is called after PCI bus has been reset to
8396  * restart the PCI card from scratch, as if from a cold-boot. During the
8397  * PCI subsystem error recovery, after the driver returns
8398  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8399  * recovery and then call this routine before calling the .resume method to
8400  * recover the device. This function will initialize the HBA device, enable
8401  * the interrupt, but it will just put the HBA to offline state without
8402  * passing any I/O traffic.
8403  *
8404  * Return codes
8405  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8406  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8407  */
8408 static pci_ers_result_t
8409 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8410 {
8411         return PCI_ERS_RESULT_RECOVERED;
8412 }
8413
8414 /**
8415  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
8416  * @pdev: pointer to PCI device
8417  *
8418  * This routine is called from the PCI subsystem for error handling to device
8419  * with SLI-4 interface spec. It is called when kernel error recovery tells
8420  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8421  * error recovery. After this call, traffic can start to flow from this device
8422  * again.
8423  **/
8424 static void
8425 lpfc_io_resume_s4(struct pci_dev *pdev)
8426 {
8427         return;
8428 }
8429
8430 /**
8431  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
8432  * @pdev: pointer to PCI device
8433  * @pid: pointer to PCI device identifier
8434  *
8435  * This routine is to be registered to the kernel's PCI subsystem. When an
8436  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
8437  * at PCI device-specific information of the device and driver to see if the
8438  * driver state that it can support this kind of device. If the match is
8439  * successful, the driver core invokes this routine. This routine dispatches
8440  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
8441  * do all the initialization that it needs to do to handle the HBA device
8442  * properly.
8443  *
8444  * Return code
8445  *      0 - driver can claim the device
8446  *      negative value - driver can not claim the device
8447  **/
8448 static int __devinit
8449 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
8450 {
8451         int rc;
8452         struct lpfc_sli_intf intf;
8453
8454         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
8455                 return -ENODEV;
8456
8457         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
8458             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
8459                 rc = lpfc_pci_probe_one_s4(pdev, pid);
8460         else
8461                 rc = lpfc_pci_probe_one_s3(pdev, pid);
8462
8463         return rc;
8464 }
8465
8466 /**
8467  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
8468  * @pdev: pointer to PCI device
8469  *
8470  * This routine is to be registered to the kernel's PCI subsystem. When an
8471  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
8472  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
8473  * remove routine, which will perform all the necessary cleanup for the
8474  * device to be removed from the PCI subsystem properly.
8475  **/
8476 static void __devexit
8477 lpfc_pci_remove_one(struct pci_dev *pdev)
8478 {
8479         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8480         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8481
8482         switch (phba->pci_dev_grp) {
8483         case LPFC_PCI_DEV_LP:
8484                 lpfc_pci_remove_one_s3(pdev);
8485                 break;
8486         case LPFC_PCI_DEV_OC:
8487                 lpfc_pci_remove_one_s4(pdev);
8488                 break;
8489         default:
8490                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8491                                 "1424 Invalid PCI device group: 0x%x\n",
8492                                 phba->pci_dev_grp);
8493                 break;
8494         }
8495         return;
8496 }
8497
8498 /**
8499  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
8500  * @pdev: pointer to PCI device
8501  * @msg: power management message
8502  *
8503  * This routine is to be registered to the kernel's PCI subsystem to support
8504  * system Power Management (PM). When PM invokes this method, it dispatches
8505  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
8506  * suspend the device.
8507  *
8508  * Return code
8509  *      0 - driver suspended the device
8510  *      Error otherwise
8511  **/
8512 static int
8513 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
8514 {
8515         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8516         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8517         int rc = -ENODEV;
8518
8519         switch (phba->pci_dev_grp) {
8520         case LPFC_PCI_DEV_LP:
8521                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
8522                 break;
8523         case LPFC_PCI_DEV_OC:
8524                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
8525                 break;
8526         default:
8527                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8528                                 "1425 Invalid PCI device group: 0x%x\n",
8529                                 phba->pci_dev_grp);
8530                 break;
8531         }
8532         return rc;
8533 }
8534
8535 /**
8536  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
8537  * @pdev: pointer to PCI device
8538  *
8539  * This routine is to be registered to the kernel's PCI subsystem to support
8540  * system Power Management (PM). When PM invokes this method, it dispatches
8541  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
8542  * resume the device.
8543  *
8544  * Return code
8545  *      0 - driver suspended the device
8546  *      Error otherwise
8547  **/
8548 static int
8549 lpfc_pci_resume_one(struct pci_dev *pdev)
8550 {
8551         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8552         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8553         int rc = -ENODEV;
8554
8555         switch (phba->pci_dev_grp) {
8556         case LPFC_PCI_DEV_LP:
8557                 rc = lpfc_pci_resume_one_s3(pdev);
8558                 break;
8559         case LPFC_PCI_DEV_OC:
8560                 rc = lpfc_pci_resume_one_s4(pdev);
8561                 break;
8562         default:
8563                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8564                                 "1426 Invalid PCI device group: 0x%x\n",
8565                                 phba->pci_dev_grp);
8566                 break;
8567         }
8568         return rc;
8569 }
8570
8571 /**
8572  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
8573  * @pdev: pointer to PCI device.
8574  * @state: the current PCI connection state.
8575  *
8576  * This routine is registered to the PCI subsystem for error handling. This
8577  * function is called by the PCI subsystem after a PCI bus error affecting
8578  * this device has been detected. When this routine is invoked, it dispatches
8579  * the action to the proper SLI-3 or SLI-4 device error detected handling
8580  * routine, which will perform the proper error detected operation.
8581  *
8582  * Return codes
8583  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8584  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8585  **/
8586 static pci_ers_result_t
8587 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
8588 {
8589         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8590         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8591         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8592
8593         switch (phba->pci_dev_grp) {
8594         case LPFC_PCI_DEV_LP:
8595                 rc = lpfc_io_error_detected_s3(pdev, state);
8596                 break;
8597         case LPFC_PCI_DEV_OC:
8598                 rc = lpfc_io_error_detected_s4(pdev, state);
8599                 break;
8600         default:
8601                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8602                                 "1427 Invalid PCI device group: 0x%x\n",
8603                                 phba->pci_dev_grp);
8604                 break;
8605         }
8606         return rc;
8607 }
8608
8609 /**
8610  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
8611  * @pdev: pointer to PCI device.
8612  *
8613  * This routine is registered to the PCI subsystem for error handling. This
8614  * function is called after PCI bus has been reset to restart the PCI card
8615  * from scratch, as if from a cold-boot. When this routine is invoked, it
8616  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
8617  * routine, which will perform the proper device reset.
8618  *
8619  * Return codes
8620  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8621  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8622  **/
8623 static pci_ers_result_t
8624 lpfc_io_slot_reset(struct pci_dev *pdev)
8625 {
8626         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8627         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8628         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8629
8630         switch (phba->pci_dev_grp) {
8631         case LPFC_PCI_DEV_LP:
8632                 rc = lpfc_io_slot_reset_s3(pdev);
8633                 break;
8634         case LPFC_PCI_DEV_OC:
8635                 rc = lpfc_io_slot_reset_s4(pdev);
8636                 break;
8637         default:
8638                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8639                                 "1428 Invalid PCI device group: 0x%x\n",
8640                                 phba->pci_dev_grp);
8641                 break;
8642         }
8643         return rc;
8644 }
8645
8646 /**
8647  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
8648  * @pdev: pointer to PCI device
8649  *
8650  * This routine is registered to the PCI subsystem for error handling. It
8651  * is called when kernel error recovery tells the lpfc driver that it is
8652  * OK to resume normal PCI operation after PCI bus error recovery. When
8653  * this routine is invoked, it dispatches the action to the proper SLI-3
8654  * or SLI-4 device io_resume routine, which will resume the device operation.
8655  **/
8656 static void
8657 lpfc_io_resume(struct pci_dev *pdev)
8658 {
8659         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8660         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8661
8662         switch (phba->pci_dev_grp) {
8663         case LPFC_PCI_DEV_LP:
8664                 lpfc_io_resume_s3(pdev);
8665                 break;
8666         case LPFC_PCI_DEV_OC:
8667                 lpfc_io_resume_s4(pdev);
8668                 break;
8669         default:
8670                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8671                                 "1429 Invalid PCI device group: 0x%x\n",
8672                                 phba->pci_dev_grp);
8673                 break;
8674         }
8675         return;
8676 }
8677
8678 static struct pci_device_id lpfc_id_table[] = {
8679         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
8680                 PCI_ANY_ID, PCI_ANY_ID, },
8681         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
8682                 PCI_ANY_ID, PCI_ANY_ID, },
8683         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
8684                 PCI_ANY_ID, PCI_ANY_ID, },
8685         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
8686                 PCI_ANY_ID, PCI_ANY_ID, },
8687         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
8688                 PCI_ANY_ID, PCI_ANY_ID, },
8689         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
8690                 PCI_ANY_ID, PCI_ANY_ID, },
8691         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
8692                 PCI_ANY_ID, PCI_ANY_ID, },
8693         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
8694                 PCI_ANY_ID, PCI_ANY_ID, },
8695         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
8696                 PCI_ANY_ID, PCI_ANY_ID, },
8697         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
8698                 PCI_ANY_ID, PCI_ANY_ID, },
8699         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
8700                 PCI_ANY_ID, PCI_ANY_ID, },
8701         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
8702                 PCI_ANY_ID, PCI_ANY_ID, },
8703         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
8704                 PCI_ANY_ID, PCI_ANY_ID, },
8705         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
8706                 PCI_ANY_ID, PCI_ANY_ID, },
8707         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
8708                 PCI_ANY_ID, PCI_ANY_ID, },
8709         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
8710                 PCI_ANY_ID, PCI_ANY_ID, },
8711         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
8712                 PCI_ANY_ID, PCI_ANY_ID, },
8713         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
8714                 PCI_ANY_ID, PCI_ANY_ID, },
8715         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
8716                 PCI_ANY_ID, PCI_ANY_ID, },
8717         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
8718                 PCI_ANY_ID, PCI_ANY_ID, },
8719         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
8720                 PCI_ANY_ID, PCI_ANY_ID, },
8721         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
8722                 PCI_ANY_ID, PCI_ANY_ID, },
8723         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
8724                 PCI_ANY_ID, PCI_ANY_ID, },
8725         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
8726                 PCI_ANY_ID, PCI_ANY_ID, },
8727         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
8728                 PCI_ANY_ID, PCI_ANY_ID, },
8729         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
8730                 PCI_ANY_ID, PCI_ANY_ID, },
8731         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
8732                 PCI_ANY_ID, PCI_ANY_ID, },
8733         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
8734                 PCI_ANY_ID, PCI_ANY_ID, },
8735         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
8736                 PCI_ANY_ID, PCI_ANY_ID, },
8737         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
8738                 PCI_ANY_ID, PCI_ANY_ID, },
8739         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
8740                 PCI_ANY_ID, PCI_ANY_ID, },
8741         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
8742                 PCI_ANY_ID, PCI_ANY_ID, },
8743         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
8744                 PCI_ANY_ID, PCI_ANY_ID, },
8745         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
8746                 PCI_ANY_ID, PCI_ANY_ID, },
8747         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
8748                 PCI_ANY_ID, PCI_ANY_ID, },
8749         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
8750                 PCI_ANY_ID, PCI_ANY_ID, },
8751         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
8752                 PCI_ANY_ID, PCI_ANY_ID, },
8753         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
8754                 PCI_ANY_ID, PCI_ANY_ID, },
8755         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
8756                 PCI_ANY_ID, PCI_ANY_ID, },
8757         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
8758                 PCI_ANY_ID, PCI_ANY_ID, },
8759         { 0 }
8760 };
8761
8762 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
8763
8764 static struct pci_error_handlers lpfc_err_handler = {
8765         .error_detected = lpfc_io_error_detected,
8766         .slot_reset = lpfc_io_slot_reset,
8767         .resume = lpfc_io_resume,
8768 };
8769
8770 static struct pci_driver lpfc_driver = {
8771         .name           = LPFC_DRIVER_NAME,
8772         .id_table       = lpfc_id_table,
8773         .probe          = lpfc_pci_probe_one,
8774         .remove         = __devexit_p(lpfc_pci_remove_one),
8775         .suspend        = lpfc_pci_suspend_one,
8776         .resume         = lpfc_pci_resume_one,
8777         .err_handler    = &lpfc_err_handler,
8778 };
8779
8780 /**
8781  * lpfc_init - lpfc module initialization routine
8782  *
8783  * This routine is to be invoked when the lpfc module is loaded into the
8784  * kernel. The special kernel macro module_init() is used to indicate the
8785  * role of this routine to the kernel as lpfc module entry point.
8786  *
8787  * Return codes
8788  *   0 - successful
8789  *   -ENOMEM - FC attach transport failed
8790  *   all others - failed
8791  */
8792 static int __init
8793 lpfc_init(void)
8794 {
8795         int error = 0;
8796
8797         printk(LPFC_MODULE_DESC "\n");
8798         printk(LPFC_COPYRIGHT "\n");
8799
8800         if (lpfc_enable_npiv) {
8801                 lpfc_transport_functions.vport_create = lpfc_vport_create;
8802                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
8803         }
8804         lpfc_transport_template =
8805                                 fc_attach_transport(&lpfc_transport_functions);
8806         if (lpfc_transport_template == NULL)
8807                 return -ENOMEM;
8808         if (lpfc_enable_npiv) {
8809                 lpfc_vport_transport_template =
8810                         fc_attach_transport(&lpfc_vport_transport_functions);
8811                 if (lpfc_vport_transport_template == NULL) {
8812                         fc_release_transport(lpfc_transport_template);
8813                         return -ENOMEM;
8814                 }
8815         }
8816         error = pci_register_driver(&lpfc_driver);
8817         if (error) {
8818                 fc_release_transport(lpfc_transport_template);
8819                 if (lpfc_enable_npiv)
8820                         fc_release_transport(lpfc_vport_transport_template);
8821         }
8822
8823         return error;
8824 }
8825
8826 /**
8827  * lpfc_exit - lpfc module removal routine
8828  *
8829  * This routine is invoked when the lpfc module is removed from the kernel.
8830  * The special kernel macro module_exit() is used to indicate the role of
8831  * this routine to the kernel as lpfc module exit point.
8832  */
8833 static void __exit
8834 lpfc_exit(void)
8835 {
8836         pci_unregister_driver(&lpfc_driver);
8837         fc_release_transport(lpfc_transport_template);
8838         if (lpfc_enable_npiv)
8839                 fc_release_transport(lpfc_vport_transport_template);
8840         if (_dump_buf_data) {
8841                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
8842                                 "_dump_buf_data at 0x%p\n",
8843                                 (1L << _dump_buf_data_order), _dump_buf_data);
8844                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
8845         }
8846
8847         if (_dump_buf_dif) {
8848                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
8849                                 "_dump_buf_dif at 0x%p\n",
8850                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
8851                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
8852         }
8853 }
8854
8855 module_init(lpfc_init);
8856 module_exit(lpfc_exit);
8857 MODULE_LICENSE("GPL");
8858 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
8859 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
8860 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);