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) 2004-2012 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <linux/blkdev.h>
  23 #include <linux/delay.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/idr.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/module.h>
  28 #include <linux/kthread.h>
  29 #include <linux/pci.h>
  30 #include <linux/spinlock.h>
  31 #include <linux/ctype.h>
  32 #include <linux/aer.h>
  33 #include <linux/slab.h>
  34 #include <linux/firmware.h>
  35 #include <linux/miscdevice.h>
  36
  37 #include <scsi/scsi.h>
  38 #include <scsi/scsi_device.h>
  39 #include <scsi/scsi_host.h>
  40 #include <scsi/scsi_transport_fc.h>
  41
  42 #include "lpfc_hw4.h"
  43 #include "lpfc_hw.h"
  44 #include "lpfc_sli.h"
  45 #include "lpfc_sli4.h"
  46 #include "lpfc_nl.h"
  47 #include "lpfc_disc.h"
  48 #include "lpfc_scsi.h"
  49 #include "lpfc.h"
  50 #include "lpfc_logmsg.h"
  51 #include "lpfc_crtn.h"
  52 #include "lpfc_vport.h"
  53 #include "lpfc_version.h"
  54
  55 char *_dump_buf_data;
  56 unsigned long _dump_buf_data_order;
  57 char *_dump_buf_dif;
  58 unsigned long _dump_buf_dif_order;
  59 spinlock_t _dump_buf_lock;
  60
  61 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  62 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  63 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  64 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  65 static int lpfc_setup_endian_order(struct lpfc_hba *);
  66 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  67 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  68 static void lpfc_init_sgl_list(struct lpfc_hba *);
  69 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  70 static void lpfc_free_active_sgl(struct lpfc_hba *);
  71 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  72 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  73 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  74 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  75 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  76 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  77 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  78
  79 static struct scsi_transport_template *lpfc_transport_template = NULL;
  80 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  81 static DEFINE_IDR(lpfc_hba_index);
  82
  83 /**
  84  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  85  * @phba: pointer to lpfc hba data structure.
  86  *
  87  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  88  * mailbox command. It retrieves the revision information from the HBA and
  89  * collects the Vital Product Data (VPD) about the HBA for preparing the
  90  * configuration of the HBA.
  91  *
  92  * Return codes:
  93  *   0 - success.
  94  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
  95  *   Any other value - indicates an error.
  96  **/
  97 int
  98 lpfc_config_port_prep(struct lpfc_hba *phba)
  99 {
 100         lpfc_vpd_t *vp = &phba->vpd;
 101         int i = 0, rc;
 102         LPFC_MBOXQ_t *pmb;
 103         MAILBOX_t *mb;
 104         char *lpfc_vpd_data = NULL;
 105         uint16_t offset = 0;
 106         static char licensed[56] =
 107                     "key unlock for use with gnu public licensed code only\0";
 108         static int init_key = 1;
 109
 110         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 111         if (!pmb) {
 112                 phba->link_state = LPFC_HBA_ERROR;
 113                 return -ENOMEM;
 114         }
 115
 116         mb = &pmb->u.mb;
 117         phba->link_state = LPFC_INIT_MBX_CMDS;
 118
 119         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 120                 if (init_key) {
 121                         uint32_t *ptext = (uint32_t *) licensed;
 122
 123                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 124                                 *ptext = cpu_to_be32(*ptext);
 125                         init_key = 0;
 126                 }
 127
 128                 lpfc_read_nv(phba, pmb);
 129                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 130                         sizeof (mb->un.varRDnvp.rsvd3));
 131                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 132                          sizeof (licensed));
 133
 134                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 135
 136                 if (rc != MBX_SUCCESS) {
 137                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 138                                         "0324 Config Port initialization "
 139                                         "error, mbxCmd x%x READ_NVPARM, "
 140                                         "mbxStatus x%x\n",
 141                                         mb->mbxCommand, mb->mbxStatus);
 142                         mempool_free(pmb, phba->mbox_mem_pool);
 143                         return -ERESTART;
 144                 }
 145                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 146                        sizeof(phba->wwnn));
 147                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 148                        sizeof(phba->wwpn));
 149         }
 150
 151         phba->sli3_options = 0x0;
 152
 153         /* Setup and issue mailbox READ REV command */
 154         lpfc_read_rev(phba, pmb);
 155         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 156         if (rc != MBX_SUCCESS) {
 157                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 158                                 "0439 Adapter failed to init, mbxCmd x%x "
 159                                 "READ_REV, mbxStatus x%x\n",
 160                                 mb->mbxCommand, mb->mbxStatus);
 161                 mempool_free( pmb, phba->mbox_mem_pool);
 162                 return -ERESTART;
 163         }
 164
 165
 166         /*
 167          * The value of rr must be 1 since the driver set the cv field to 1.
 168          * This setting requires the FW to set all revision fields.
 169          */
 170         if (mb->un.varRdRev.rr == 0) {
 171                 vp->rev.rBit = 0;
 172                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 173                                 "0440 Adapter failed to init, READ_REV has "
 174                                 "missing revision information.\n");
 175                 mempool_free(pmb, phba->mbox_mem_pool);
 176                 return -ERESTART;
 177         }
 178
 179         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 180                 mempool_free(pmb, phba->mbox_mem_pool);
 181                 return -EINVAL;
 182         }
 183
 184         /* Save information as VPD data */
 185         vp->rev.rBit = 1;
 186         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 187         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 188         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 189         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 190         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 191         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 192         vp->rev.smRev = mb->un.varRdRev.smRev;
 193         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 194         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 195         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 196         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 197         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 198         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 199         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 200         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 201
 202         /* If the sli feature level is less then 9, we must
 203          * tear down all RPIs and VPIs on link down if NPIV
 204          * is enabled.
 205          */
 206         if (vp->rev.feaLevelHigh < 9)
 207                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 208
 209         if (lpfc_is_LC_HBA(phba->pcidev->device))
 210                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 211                                                 sizeof (phba->RandomData));
 212
 213         /* Get adapter VPD information */
 214         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 215         if (!lpfc_vpd_data)
 216                 goto out_free_mbox;
 217         do {
 218                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 219                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 220
 221                 if (rc != MBX_SUCCESS) {
 222                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 223                                         "0441 VPD not present on adapter, "
 224                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 225                                         mb->mbxCommand, mb->mbxStatus);
 226                         mb->un.varDmp.word_cnt = 0;
 227                 }
 228                 /* dump mem may return a zero when finished or we got a
 229                  * mailbox error, either way we are done.
 230                  */
 231                 if (mb->un.varDmp.word_cnt == 0)
 232                         break;
 233                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 234                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 235                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 236                                       lpfc_vpd_data + offset,
 237                                       mb->un.varDmp.word_cnt);
 238                 offset += mb->un.varDmp.word_cnt;
 239         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 240         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 241
 242         kfree(lpfc_vpd_data);
 243 out_free_mbox:
 244         mempool_free(pmb, phba->mbox_mem_pool);
 245         return 0;
 246 }
 247
 248 /**
 249  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 250  * @phba: pointer to lpfc hba data structure.
 251  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 252  *
 253  * This is the completion handler for driver's configuring asynchronous event
 254  * mailbox command to the device. If the mailbox command returns successfully,
 255  * it will set internal async event support flag to 1; otherwise, it will
 256  * set internal async event support flag to 0.
 257  **/
 258 static void
 259 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 260 {
 261         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 262                 phba->temp_sensor_support = 1;
 263         else
 264                 phba->temp_sensor_support = 0;
 265         mempool_free(pmboxq, phba->mbox_mem_pool);
 266         return;
 267 }
 268
 269 /**
 270  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 271  * @phba: pointer to lpfc hba data structure.
 272  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 273  *
 274  * This is the completion handler for dump mailbox command for getting
 275  * wake up parameters. When this command complete, the response contain
 276  * Option rom version of the HBA. This function translate the version number
 277  * into a human readable string and store it in OptionROMVersion.
 278  **/
 279 static void
 280 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 281 {
 282         struct prog_id *prg;
 283         uint32_t prog_id_word;
 284         char dist = ' ';
 285         /* character array used for decoding dist type. */
 286         char dist_char[] = "nabx";
 287
 288         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 289                 mempool_free(pmboxq, phba->mbox_mem_pool);
 290                 return;
 291         }
 292
 293         prg = (struct prog_id *) &prog_id_word;
 294
 295         /* word 7 contain option rom version */
 296         prog_id_word = pmboxq->u.mb.un.varWords[7];
 297
 298         /* Decode the Option rom version word to a readable string */
 299         if (prg->dist < 4)
 300                 dist = dist_char[prg->dist];
 301
 302         if ((prg->dist == 3) && (prg->num == 0))
 303                 sprintf(phba->OptionROMVersion, "%d.%d%d",
 304                         prg->ver, prg->rev, prg->lev);
 305         else
 306                 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
 307                         prg->ver, prg->rev, prg->lev,
 308                         dist, prg->num);
 309         mempool_free(pmboxq, phba->mbox_mem_pool);
 310         return;
 311 }
 312
 313 /**
 314  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 315  *      cfg_soft_wwnn, cfg_soft_wwpn
 316  * @vport: pointer to lpfc vport data structure.
 317  *
 318  *
 319  * Return codes
 320  *   None.
 321  **/
 322 void
 323 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 324 {
 325         /* If the soft name exists then update it using the service params */
 326         if (vport->phba->cfg_soft_wwnn)
 327                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 328                            vport->fc_sparam.nodeName.u.wwn);
 329         if (vport->phba->cfg_soft_wwpn)
 330                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 331                            vport->fc_sparam.portName.u.wwn);
 332
 333         /*
 334          * If the name is empty or there exists a soft name
 335          * then copy the service params name, otherwise use the fc name
 336          */
 337         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 338                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 339                         sizeof(struct lpfc_name));
 340         else
 341                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 342                         sizeof(struct lpfc_name));
 343
 344         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 345                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 346                         sizeof(struct lpfc_name));
 347         else
 348                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 349                         sizeof(struct lpfc_name));
 350 }
 351
 352 /**
 353  * lpfc_config_port_post - Perform lpfc initialization after config port
 354  * @phba: pointer to lpfc hba data structure.
 355  *
 356  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 357  * command call. It performs all internal resource and state setups on the
 358  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 359  * ELS ring timers, etc.
 360  *
 361  * Return codes
 362  *   0 - success.
 363  *   Any other value - error.
 364  **/
 365 int
 366 lpfc_config_port_post(struct lpfc_hba *phba)
 367 {
 368         struct lpfc_vport *vport = phba->pport;
 369         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 370         LPFC_MBOXQ_t *pmb;
 371         MAILBOX_t *mb;
 372         struct lpfc_dmabuf *mp;
 373         struct lpfc_sli *psli = &phba->sli;
 374         uint32_t status, timeout;
 375         int i, j;
 376         int rc;
 377
 378         spin_lock_irq(&phba->hbalock);
 379         /*
 380          * If the Config port completed correctly the HBA is not
 381          * over heated any more.
 382          */
 383         if (phba->over_temp_state == HBA_OVER_TEMP)
 384                 phba->over_temp_state = HBA_NORMAL_TEMP;
 385         spin_unlock_irq(&phba->hbalock);
 386
 387         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 388         if (!pmb) {
 389                 phba->link_state = LPFC_HBA_ERROR;
 390                 return -ENOMEM;
 391         }
 392         mb = &pmb->u.mb;
 393
 394         /* Get login parameters for NID.  */
 395         rc = lpfc_read_sparam(phba, pmb, 0);
 396         if (rc) {
 397                 mempool_free(pmb, phba->mbox_mem_pool);
 398                 return -ENOMEM;
 399         }
 400
 401         pmb->vport = vport;
 402         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 403                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 404                                 "0448 Adapter failed init, mbxCmd x%x "
 405                                 "READ_SPARM mbxStatus x%x\n",
 406                                 mb->mbxCommand, mb->mbxStatus);
 407                 phba->link_state = LPFC_HBA_ERROR;
 408                 mp = (struct lpfc_dmabuf *) pmb->context1;
 409                 mempool_free(pmb, phba->mbox_mem_pool);
 410                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 411                 kfree(mp);
 412                 return -EIO;
 413         }
 414
 415         mp = (struct lpfc_dmabuf *) pmb->context1;
 416
 417         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 418         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 419         kfree(mp);
 420         pmb->context1 = NULL;
 421         lpfc_update_vport_wwn(vport);
 422
 423         /* Update the fc_host data structures with new wwn. */
 424         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 425         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 426         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 427
 428         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 429         /* This should be consolidated into parse_vpd ? - mr */
 430         if (phba->SerialNumber[0] == 0) {
 431                 uint8_t *outptr;
 432
 433                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 434                 for (i = 0; i < 12; i++) {
 435                         status = *outptr++;
 436                         j = ((status & 0xf0) >> 4);
 437                         if (j <= 9)
 438                                 phba->SerialNumber[i] =
 439                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 440                         else
 441                                 phba->SerialNumber[i] =
 442                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 443                         i++;
 444                         j = (status & 0xf);
 445                         if (j <= 9)
 446                                 phba->SerialNumber[i] =
 447                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 448                         else
 449                                 phba->SerialNumber[i] =
 450                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 451                 }
 452         }
 453
 454         lpfc_read_config(phba, pmb);
 455         pmb->vport = vport;
 456         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 457                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 458                                 "0453 Adapter failed to init, mbxCmd x%x "
 459                                 "READ_CONFIG, mbxStatus x%x\n",
 460                                 mb->mbxCommand, mb->mbxStatus);
 461                 phba->link_state = LPFC_HBA_ERROR;
 462                 mempool_free( pmb, phba->mbox_mem_pool);
 463                 return -EIO;
 464         }
 465
 466         /* Check if the port is disabled */
 467         lpfc_sli_read_link_ste(phba);
 468
 469         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 470         if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
 471                 phba->cfg_hba_queue_depth =
 472                         (mb->un.varRdConfig.max_xri + 1) -
 473                                         lpfc_sli4_get_els_iocb_cnt(phba);
 474
 475         phba->lmt = mb->un.varRdConfig.lmt;
 476
 477         /* Get the default values for Model Name and Description */
 478         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 479
 480         phba->link_state = LPFC_LINK_DOWN;
 481
 482         /* Only process IOCBs on ELS ring till hba_state is READY */
 483         if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
 484                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 485         if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
 486                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 487         if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
 488                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 489
 490         /* Post receive buffers for desired rings */
 491         if (phba->sli_rev != 3)
 492                 lpfc_post_rcv_buf(phba);
 493
 494         /*
 495          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 496          */
 497         if (phba->intr_type == MSIX) {
 498                 rc = lpfc_config_msi(phba, pmb);
 499                 if (rc) {
 500                         mempool_free(pmb, phba->mbox_mem_pool);
 501                         return -EIO;
 502                 }
 503                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 504                 if (rc != MBX_SUCCESS) {
 505                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 506                                         "0352 Config MSI mailbox command "
 507                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 508                                         pmb->u.mb.mbxCommand,
 509                                         pmb->u.mb.mbxStatus);
 510                         mempool_free(pmb, phba->mbox_mem_pool);
 511                         return -EIO;
 512                 }
 513         }
 514
 515         spin_lock_irq(&phba->hbalock);
 516         /* Initialize ERATT handling flag */
 517         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 518
 519         /* Enable appropriate host interrupts */
 520         if (lpfc_readl(phba->HCregaddr, &status)) {
 521                 spin_unlock_irq(&phba->hbalock);
 522                 return -EIO;
 523         }
 524         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 525         if (psli->num_rings > 0)
 526                 status |= HC_R0INT_ENA;
 527         if (psli->num_rings > 1)
 528                 status |= HC_R1INT_ENA;
 529         if (psli->num_rings > 2)
 530                 status |= HC_R2INT_ENA;
 531         if (psli->num_rings > 3)
 532                 status |= HC_R3INT_ENA;
 533
 534         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 535             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 536                 status &= ~(HC_R0INT_ENA);
 537
 538         writel(status, phba->HCregaddr);
 539         readl(phba->HCregaddr); /* flush */
 540         spin_unlock_irq(&phba->hbalock);
 541
 542         /* Set up ring-0 (ELS) timer */
 543         timeout = phba->fc_ratov * 2;
 544         mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
 545         /* Set up heart beat (HB) timer */
 546         mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 547         phba->hb_outstanding = 0;
 548         phba->last_completion_time = jiffies;
 549         /* Set up error attention (ERATT) polling timer */
 550         mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
 551
 552         if (phba->hba_flag & LINK_DISABLED) {
 553                 lpfc_printf_log(phba,
 554                         KERN_ERR, LOG_INIT,
 555                         "2598 Adapter Link is disabled.\n");
 556                 lpfc_down_link(phba, pmb);
 557                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 558                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 559                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 560                         lpfc_printf_log(phba,
 561                         KERN_ERR, LOG_INIT,
 562                         "2599 Adapter failed to issue DOWN_LINK"
 563                         " mbox command rc 0x%x\n", rc);
 564
 565                         mempool_free(pmb, phba->mbox_mem_pool);
 566                         return -EIO;
 567                 }
 568         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 569                 mempool_free(pmb, phba->mbox_mem_pool);
 570                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 571                 if (rc)
 572                         return rc;
 573         }
 574         /* MBOX buffer will be freed in mbox compl */
 575         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 576         if (!pmb) {
 577                 phba->link_state = LPFC_HBA_ERROR;
 578                 return -ENOMEM;
 579         }
 580
 581         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 582         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 583         pmb->vport = phba->pport;
 584         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 585
 586         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 587                 lpfc_printf_log(phba,
 588                                 KERN_ERR,
 589                                 LOG_INIT,
 590                                 "0456 Adapter failed to issue "
 591                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 592                                 rc);
 593                 mempool_free(pmb, phba->mbox_mem_pool);
 594         }
 595
 596         /* Get Option rom version */
 597         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 598         if (!pmb) {
 599                 phba->link_state = LPFC_HBA_ERROR;
 600                 return -ENOMEM;
 601         }
 602
 603         lpfc_dump_wakeup_param(phba, pmb);
 604         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 605         pmb->vport = phba->pport;
 606         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 607
 608         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 609                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 610                                 "to get Option ROM version status x%x\n", rc);
 611                 mempool_free(pmb, phba->mbox_mem_pool);
 612         }
 613
 614         return 0;
 615 }
 616
 617 /**
 618  * lpfc_hba_init_link - Initialize the FC link
 619  * @phba: pointer to lpfc hba data structure.
 620  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 621  *
 622  * This routine will issue the INIT_LINK mailbox command call.
 623  * It is available to other drivers through the lpfc_hba data
 624  * structure for use as a delayed link up mechanism with the
 625  * module parameter lpfc_suppress_link_up.
 626  *
 627  * Return code
 628  *              0 - success
 629  *              Any other value - error
 630  **/
 631 int
 632 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 633 {
 634         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 635 }
 636
 637 /**
 638  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 639  * @phba: pointer to lpfc hba data structure.
 640  * @fc_topology: desired fc topology.
 641  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 642  *
 643  * This routine will issue the INIT_LINK mailbox command call.
 644  * It is available to other drivers through the lpfc_hba data
 645  * structure for use as a delayed link up mechanism with the
 646  * module parameter lpfc_suppress_link_up.
 647  *
 648  * Return code
 649  *              0 - success
 650  *              Any other value - error
 651  **/
 652 int
 653 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 654                                uint32_t flag)
 655 {
 656         struct lpfc_vport *vport = phba->pport;
 657         LPFC_MBOXQ_t *pmb;
 658         MAILBOX_t *mb;
 659         int rc;
 660
 661         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 662         if (!pmb) {
 663                 phba->link_state = LPFC_HBA_ERROR;
 664                 return -ENOMEM;
 665         }
 666         mb = &pmb->u.mb;
 667         pmb->vport = vport;
 668
 669         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 670             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 671              !(phba->lmt & LMT_1Gb)) ||
 672             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 673              !(phba->lmt & LMT_2Gb)) ||
 674             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 675              !(phba->lmt & LMT_4Gb)) ||
 676             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 677              !(phba->lmt & LMT_8Gb)) ||
 678             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 679              !(phba->lmt & LMT_10Gb)) ||
 680             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 681              !(phba->lmt & LMT_16Gb))) {
 682                 /* Reset link speed to auto */
 683                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 684                         "1302 Invalid speed for this board:%d "
 685                         "Reset link speed to auto.\n",
 686                         phba->cfg_link_speed);
 687                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 688         }
 689         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 690         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 691         if (phba->sli_rev < LPFC_SLI_REV4)
 692                 lpfc_set_loopback_flag(phba);
 693         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 694         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 695                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 696                         "0498 Adapter failed to init, mbxCmd x%x "
 697                         "INIT_LINK, mbxStatus x%x\n",
 698                         mb->mbxCommand, mb->mbxStatus);
 699                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 700                         /* Clear all interrupt enable conditions */
 701                         writel(0, phba->HCregaddr);
 702                         readl(phba->HCregaddr); /* flush */
 703                         /* Clear all pending interrupts */
 704                         writel(0xffffffff, phba->HAregaddr);
 705                         readl(phba->HAregaddr); /* flush */
 706                 }
 707                 phba->link_state = LPFC_HBA_ERROR;
 708                 if (rc != MBX_BUSY || flag == MBX_POLL)
 709                         mempool_free(pmb, phba->mbox_mem_pool);
 710                 return -EIO;
 711         }
 712         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 713         if (flag == MBX_POLL)
 714                 mempool_free(pmb, phba->mbox_mem_pool);
 715
 716         return 0;
 717 }
 718
 719 /**
 720  * lpfc_hba_down_link - this routine downs the FC link
 721  * @phba: pointer to lpfc hba data structure.
 722  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 723  *
 724  * This routine will issue the DOWN_LINK mailbox command call.
 725  * It is available to other drivers through the lpfc_hba data
 726  * structure for use to stop the link.
 727  *
 728  * Return code
 729  *              0 - success
 730  *              Any other value - error
 731  **/
 732 int
 733 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 734 {
 735         LPFC_MBOXQ_t *pmb;
 736         int rc;
 737
 738         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 739         if (!pmb) {
 740                 phba->link_state = LPFC_HBA_ERROR;
 741                 return -ENOMEM;
 742         }
 743
 744         lpfc_printf_log(phba,
 745                 KERN_ERR, LOG_INIT,
 746                 "0491 Adapter Link is disabled.\n");
 747         lpfc_down_link(phba, pmb);
 748         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 749         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 750         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 751                 lpfc_printf_log(phba,
 752                 KERN_ERR, LOG_INIT,
 753                 "2522 Adapter failed to issue DOWN_LINK"
 754                 " mbox command rc 0x%x\n", rc);
 755
 756                 mempool_free(pmb, phba->mbox_mem_pool);
 757                 return -EIO;
 758         }
 759         if (flag == MBX_POLL)
 760                 mempool_free(pmb, phba->mbox_mem_pool);
 761
 762         return 0;
 763 }
 764
 765 /**
 766  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 767  * @phba: pointer to lpfc HBA data structure.
 768  *
 769  * This routine will do LPFC uninitialization before the HBA is reset when
 770  * bringing down the SLI Layer.
 771  *
 772  * Return codes
 773  *   0 - success.
 774  *   Any other value - error.
 775  **/
 776 int
 777 lpfc_hba_down_prep(struct lpfc_hba *phba)
 778 {
 779         struct lpfc_vport **vports;
 780         int i;
 781
 782         if (phba->sli_rev <= LPFC_SLI_REV3) {
 783                 /* Disable interrupts */
 784                 writel(0, phba->HCregaddr);
 785                 readl(phba->HCregaddr); /* flush */
 786         }
 787
 788         if (phba->pport->load_flag & FC_UNLOADING)
 789                 lpfc_cleanup_discovery_resources(phba->pport);
 790         else {
 791                 vports = lpfc_create_vport_work_array(phba);
 792                 if (vports != NULL)
 793                         for (i = 0; i <= phba->max_vports &&
 794                                 vports[i] != NULL; i++)
 795                                 lpfc_cleanup_discovery_resources(vports[i]);
 796                 lpfc_destroy_vport_work_array(phba, vports);
 797         }
 798         return 0;
 799 }
 800
 801 /**
 802  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 803  * @phba: pointer to lpfc HBA data structure.
 804  *
 805  * This routine will do uninitialization after the HBA is reset when bring
 806  * down the SLI Layer.
 807  *
 808  * Return codes
 809  *   0 - success.
 810  *   Any other value - error.
 811  **/
 812 static int
 813 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 814 {
 815         struct lpfc_sli *psli = &phba->sli;
 816         struct lpfc_sli_ring *pring;
 817         struct lpfc_dmabuf *mp, *next_mp;
 818         LIST_HEAD(completions);
 819         int i;
 820
 821         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 822                 lpfc_sli_hbqbuf_free_all(phba);
 823         else {
 824                 /* Cleanup preposted buffers on the ELS ring */
 825                 pring = &psli->ring[LPFC_ELS_RING];
 826                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 827                         list_del(&mp->list);
 828                         pring->postbufq_cnt--;
 829                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 830                         kfree(mp);
 831                 }
 832         }
 833
 834         spin_lock_irq(&phba->hbalock);
 835         for (i = 0; i < psli->num_rings; i++) {
 836                 pring = &psli->ring[i];
 837
 838                 /* At this point in time the HBA is either reset or DOA. Either
 839                  * way, nothing should be on txcmplq as it will NEVER complete.
 840                  */
 841                 list_splice_init(&pring->txcmplq, &completions);
 842                 pring->txcmplq_cnt = 0;
 843                 spin_unlock_irq(&phba->hbalock);
 844
 845                 /* Cancel all the IOCBs from the completions list */
 846                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 847                                       IOERR_SLI_ABORTED);
 848
 849                 lpfc_sli_abort_iocb_ring(phba, pring);
 850                 spin_lock_irq(&phba->hbalock);
 851         }
 852         spin_unlock_irq(&phba->hbalock);
 853
 854         return 0;
 855 }
 856
 857 /**
 858  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 859  * @phba: pointer to lpfc HBA data structure.
 860  *
 861  * This routine will do uninitialization after the HBA is reset when bring
 862  * down the SLI Layer.
 863  *
 864  * Return codes
 865  *   0 - success.
 866  *   Any other value - error.
 867  **/
 868 static int
 869 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 870 {
 871         struct lpfc_scsi_buf *psb, *psb_next;
 872         LIST_HEAD(aborts);
 873         int ret;
 874         unsigned long iflag = 0;
 875         struct lpfc_sglq *sglq_entry = NULL;
 876
 877         ret = lpfc_hba_down_post_s3(phba);
 878         if (ret)
 879                 return ret;
 880         /* At this point in time the HBA is either reset or DOA. Either
 881          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 882          * on the lpfc_sgl_list so that it can either be freed if the
 883          * driver is unloading or reposted if the driver is restarting
 884          * the port.
 885          */
 886         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 887                                         /* scsl_buf_list */
 888         /* abts_sgl_list_lock required because worker thread uses this
 889          * list.
 890          */
 891         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 892         list_for_each_entry(sglq_entry,
 893                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 894                 sglq_entry->state = SGL_FREED;
 895
 896         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 897                         &phba->sli4_hba.lpfc_sgl_list);
 898         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 899         /* abts_scsi_buf_list_lock required because worker thread uses this
 900          * list.
 901          */
 902         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 903         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 904                         &aborts);
 905         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 906         spin_unlock_irq(&phba->hbalock);
 907
 908         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 909                 psb->pCmd = NULL;
 910                 psb->status = IOSTAT_SUCCESS;
 911         }
 912         spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 913         list_splice(&aborts, &phba->lpfc_scsi_buf_list);
 914         spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 915         return 0;
 916 }
 917
 918 /**
 919  * lpfc_hba_down_post - Wrapper func for hba down post routine
 920  * @phba: pointer to lpfc HBA data structure.
 921  *
 922  * This routine wraps the actual SLI3 or SLI4 routine for performing
 923  * uninitialization after the HBA is reset when bring down the SLI Layer.
 924  *
 925  * Return codes
 926  *   0 - success.
 927  *   Any other value - error.
 928  **/
 929 int
 930 lpfc_hba_down_post(struct lpfc_hba *phba)
 931 {
 932         return (*phba->lpfc_hba_down_post)(phba);
 933 }
 934
 935 /**
 936  * lpfc_hb_timeout - The HBA-timer timeout handler
 937  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 938  *
 939  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 940  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 941  * work-port-events bitmap and the worker thread is notified. This timeout
 942  * event will be used by the worker thread to invoke the actual timeout
 943  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 944  * be performed in the timeout handler and the HBA timeout event bit shall
 945  * be cleared by the worker thread after it has taken the event bitmap out.
 946  **/
 947 static void
 948 lpfc_hb_timeout(unsigned long ptr)
 949 {
 950         struct lpfc_hba *phba;
 951         uint32_t tmo_posted;
 952         unsigned long iflag;
 953
 954         phba = (struct lpfc_hba *)ptr;
 955
 956         /* Check for heart beat timeout conditions */
 957         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 958         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 959         if (!tmo_posted)
 960                 phba->pport->work_port_events |= WORKER_HB_TMO;
 961         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 962
 963         /* Tell the worker thread there is work to do */
 964         if (!tmo_posted)
 965                 lpfc_worker_wake_up(phba);
 966         return;
 967 }
 968
 969 /**
 970  * lpfc_rrq_timeout - The RRQ-timer timeout handler
 971  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 972  *
 973  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 974  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 975  * work-port-events bitmap and the worker thread is notified. This timeout
 976  * event will be used by the worker thread to invoke the actual timeout
 977  * handler routine, lpfc_rrq_handler. Any periodical operations will
 978  * be performed in the timeout handler and the RRQ timeout event bit shall
 979  * be cleared by the worker thread after it has taken the event bitmap out.
 980  **/
 981 static void
 982 lpfc_rrq_timeout(unsigned long ptr)
 983 {
 984         struct lpfc_hba *phba;
 985         unsigned long iflag;
 986
 987         phba = (struct lpfc_hba *)ptr;
 988         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 989         phba->hba_flag |= HBA_RRQ_ACTIVE;
 990         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 991         lpfc_worker_wake_up(phba);
 992 }
 993
 994 /**
 995  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 996  * @phba: pointer to lpfc hba data structure.
 997  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 998  *
 999  * This is the callback function to the lpfc heart-beat mailbox command.
1000  * If configured, the lpfc driver issues the heart-beat mailbox command to
1001  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1002  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1003  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1004  * heart-beat outstanding state. Once the mailbox command comes back and
1005  * no error conditions detected, the heart-beat mailbox command timer is
1006  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1007  * state is cleared for the next heart-beat. If the timer expired with the
1008  * heart-beat outstanding state set, the driver will put the HBA offline.
1009  **/
1010 static void
1011 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1012 {
1013         unsigned long drvr_flag;
1014
1015         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1016         phba->hb_outstanding = 0;
1017         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1018
1019         /* Check and reset heart-beat timer is necessary */
1020         mempool_free(pmboxq, phba->mbox_mem_pool);
1021         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1022                 !(phba->link_state == LPFC_HBA_ERROR) &&
1023                 !(phba->pport->load_flag & FC_UNLOADING))
1024                 mod_timer(&phba->hb_tmofunc,
1025                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1026         return;
1027 }
1028
1029 /**
1030  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1031  * @phba: pointer to lpfc hba data structure.
1032  *
1033  * This is the actual HBA-timer timeout handler to be invoked by the worker
1034  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1035  * handler performs any periodic operations needed for the device. If such
1036  * periodic event has already been attended to either in the interrupt handler
1037  * or by processing slow-ring or fast-ring events within the HBA-timer
1038  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1039  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1040  * is configured and there is no heart-beat mailbox command outstanding, a
1041  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1042  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1043  * to offline.
1044  **/
1045 void
1046 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1047 {
1048         struct lpfc_vport **vports;
1049         LPFC_MBOXQ_t *pmboxq;
1050         struct lpfc_dmabuf *buf_ptr;
1051         int retval, i;
1052         struct lpfc_sli *psli = &phba->sli;
1053         LIST_HEAD(completions);
1054
1055         vports = lpfc_create_vport_work_array(phba);
1056         if (vports != NULL)
1057                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1058                         lpfc_rcv_seq_check_edtov(vports[i]);
1059         lpfc_destroy_vport_work_array(phba, vports);
1060
1061         if ((phba->link_state == LPFC_HBA_ERROR) ||
1062                 (phba->pport->load_flag & FC_UNLOADING) ||
1063                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1064                 return;
1065
1066         spin_lock_irq(&phba->pport->work_port_lock);
1067
1068         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1069                 jiffies)) {
1070                 spin_unlock_irq(&phba->pport->work_port_lock);
1071                 if (!phba->hb_outstanding)
1072                         mod_timer(&phba->hb_tmofunc,
1073                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1074                 else
1075                         mod_timer(&phba->hb_tmofunc,
1076                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1077                 return;
1078         }
1079         spin_unlock_irq(&phba->pport->work_port_lock);
1080
1081         if (phba->elsbuf_cnt &&
1082                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1083                 spin_lock_irq(&phba->hbalock);
1084                 list_splice_init(&phba->elsbuf, &completions);
1085                 phba->elsbuf_cnt = 0;
1086                 phba->elsbuf_prev_cnt = 0;
1087                 spin_unlock_irq(&phba->hbalock);
1088
1089                 while (!list_empty(&completions)) {
1090                         list_remove_head(&completions, buf_ptr,
1091                                 struct lpfc_dmabuf, list);
1092                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1093                         kfree(buf_ptr);
1094                 }
1095         }
1096         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1097
1098         /* If there is no heart beat outstanding, issue a heartbeat command */
1099         if (phba->cfg_enable_hba_heartbeat) {
1100                 if (!phba->hb_outstanding) {
1101                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1102                                 (list_empty(&psli->mboxq))) {
1103                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1104                                                         GFP_KERNEL);
1105                                 if (!pmboxq) {
1106                                         mod_timer(&phba->hb_tmofunc,
1107                                                  jiffies +
1108                                                  HZ * LPFC_HB_MBOX_INTERVAL);
1109                                         return;
1110                                 }
1111
1112                                 lpfc_heart_beat(phba, pmboxq);
1113                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1114                                 pmboxq->vport = phba->pport;
1115                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1116                                                 MBX_NOWAIT);
1117
1118                                 if (retval != MBX_BUSY &&
1119                                         retval != MBX_SUCCESS) {
1120                                         mempool_free(pmboxq,
1121                                                         phba->mbox_mem_pool);
1122                                         mod_timer(&phba->hb_tmofunc,
1123                                                 jiffies +
1124                                                 HZ * LPFC_HB_MBOX_INTERVAL);
1125                                         return;
1126                                 }
1127                                 phba->skipped_hb = 0;
1128                                 phba->hb_outstanding = 1;
1129                         } else if (time_before_eq(phba->last_completion_time,
1130                                         phba->skipped_hb)) {
1131                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1132                                         "2857 Last completion time not "
1133                                         " updated in %d ms\n",
1134                                         jiffies_to_msecs(jiffies
1135                                                  - phba->last_completion_time));
1136                         } else
1137                                 phba->skipped_hb = jiffies;
1138
1139                         mod_timer(&phba->hb_tmofunc,
1140                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1141                         return;
1142                 } else {
1143                         /*
1144                         * If heart beat timeout called with hb_outstanding set
1145                         * we need to give the hb mailbox cmd a chance to
1146                         * complete or TMO.
1147                         */
1148                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1149                                         "0459 Adapter heartbeat still out"
1150                                         "standing:last compl time was %d ms.\n",
1151                                         jiffies_to_msecs(jiffies
1152                                                  - phba->last_completion_time));
1153                         mod_timer(&phba->hb_tmofunc,
1154                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1155                 }
1156         }
1157 }
1158
1159 /**
1160  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1161  * @phba: pointer to lpfc hba data structure.
1162  *
1163  * This routine is called to bring the HBA offline when HBA hardware error
1164  * other than Port Error 6 has been detected.
1165  **/
1166 static void
1167 lpfc_offline_eratt(struct lpfc_hba *phba)
1168 {
1169         struct lpfc_sli   *psli = &phba->sli;
1170
1171         spin_lock_irq(&phba->hbalock);
1172         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1173         spin_unlock_irq(&phba->hbalock);
1174         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1175
1176         lpfc_offline(phba);
1177         lpfc_reset_barrier(phba);
1178         spin_lock_irq(&phba->hbalock);
1179         lpfc_sli_brdreset(phba);
1180         spin_unlock_irq(&phba->hbalock);
1181         lpfc_hba_down_post(phba);
1182         lpfc_sli_brdready(phba, HS_MBRDY);
1183         lpfc_unblock_mgmt_io(phba);
1184         phba->link_state = LPFC_HBA_ERROR;
1185         return;
1186 }
1187
1188 /**
1189  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1190  * @phba: pointer to lpfc hba data structure.
1191  *
1192  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1193  * other than Port Error 6 has been detected.
1194  **/
1195 static void
1196 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1197 {
1198         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1199         lpfc_offline(phba);
1200         lpfc_sli4_brdreset(phba);
1201         lpfc_hba_down_post(phba);
1202         lpfc_sli4_post_status_check(phba);
1203         lpfc_unblock_mgmt_io(phba);
1204         phba->link_state = LPFC_HBA_ERROR;
1205 }
1206
1207 /**
1208  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1209  * @phba: pointer to lpfc hba data structure.
1210  *
1211  * This routine is invoked to handle the deferred HBA hardware error
1212  * conditions. This type of error is indicated by HBA by setting ER1
1213  * and another ER bit in the host status register. The driver will
1214  * wait until the ER1 bit clears before handling the error condition.
1215  **/
1216 static void
1217 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1218 {
1219         uint32_t old_host_status = phba->work_hs;
1220         struct lpfc_sli_ring  *pring;
1221         struct lpfc_sli *psli = &phba->sli;
1222
1223         /* If the pci channel is offline, ignore possible errors,
1224          * since we cannot communicate with the pci card anyway.
1225          */
1226         if (pci_channel_offline(phba->pcidev)) {
1227                 spin_lock_irq(&phba->hbalock);
1228                 phba->hba_flag &= ~DEFER_ERATT;
1229                 spin_unlock_irq(&phba->hbalock);
1230                 return;
1231         }
1232
1233         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1234                 "0479 Deferred Adapter Hardware Error "
1235                 "Data: x%x x%x x%x\n",
1236                 phba->work_hs,
1237                 phba->work_status[0], phba->work_status[1]);
1238
1239         spin_lock_irq(&phba->hbalock);
1240         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1241         spin_unlock_irq(&phba->hbalock);
1242
1243
1244         /*
1245          * Firmware stops when it triggred erratt. That could cause the I/Os
1246          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1247          * SCSI layer retry it after re-establishing link.
1248          */
1249         pring = &psli->ring[psli->fcp_ring];
1250         lpfc_sli_abort_iocb_ring(phba, pring);
1251
1252         /*
1253          * There was a firmware error. Take the hba offline and then
1254          * attempt to restart it.
1255          */
1256         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1257         lpfc_offline(phba);
1258
1259         /* Wait for the ER1 bit to clear.*/
1260         while (phba->work_hs & HS_FFER1) {
1261                 msleep(100);
1262                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1263                         phba->work_hs = UNPLUG_ERR ;
1264                         break;
1265                 }
1266                 /* If driver is unloading let the worker thread continue */
1267                 if (phba->pport->load_flag & FC_UNLOADING) {
1268                         phba->work_hs = 0;
1269                         break;
1270                 }
1271         }
1272
1273         /*
1274          * This is to ptrotect against a race condition in which
1275          * first write to the host attention register clear the
1276          * host status register.
1277          */
1278         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1279                 phba->work_hs = old_host_status & ~HS_FFER1;
1280
1281         spin_lock_irq(&phba->hbalock);
1282         phba->hba_flag &= ~DEFER_ERATT;
1283         spin_unlock_irq(&phba->hbalock);
1284         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1285         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1286 }
1287
1288 static void
1289 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1290 {
1291         struct lpfc_board_event_header board_event;
1292         struct Scsi_Host *shost;
1293
1294         board_event.event_type = FC_REG_BOARD_EVENT;
1295         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1296         shost = lpfc_shost_from_vport(phba->pport);
1297         fc_host_post_vendor_event(shost, fc_get_event_number(),
1298                                   sizeof(board_event),
1299                                   (char *) &board_event,
1300                                   LPFC_NL_VENDOR_ID);
1301 }
1302
1303 /**
1304  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1305  * @phba: pointer to lpfc hba data structure.
1306  *
1307  * This routine is invoked to handle the following HBA hardware error
1308  * conditions:
1309  * 1 - HBA error attention interrupt
1310  * 2 - DMA ring index out of range
1311  * 3 - Mailbox command came back as unknown
1312  **/
1313 static void
1314 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1315 {
1316         struct lpfc_vport *vport = phba->pport;
1317         struct lpfc_sli   *psli = &phba->sli;
1318         struct lpfc_sli_ring  *pring;
1319         uint32_t event_data;
1320         unsigned long temperature;
1321         struct temp_event temp_event_data;
1322         struct Scsi_Host  *shost;
1323
1324         /* If the pci channel is offline, ignore possible errors,
1325          * since we cannot communicate with the pci card anyway.
1326          */
1327         if (pci_channel_offline(phba->pcidev)) {
1328                 spin_lock_irq(&phba->hbalock);
1329                 phba->hba_flag &= ~DEFER_ERATT;
1330                 spin_unlock_irq(&phba->hbalock);
1331                 return;
1332         }
1333
1334         /* If resets are disabled then leave the HBA alone and return */
1335         if (!phba->cfg_enable_hba_reset)
1336                 return;
1337
1338         /* Send an internal error event to mgmt application */
1339         lpfc_board_errevt_to_mgmt(phba);
1340
1341         if (phba->hba_flag & DEFER_ERATT)
1342                 lpfc_handle_deferred_eratt(phba);
1343
1344         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1345                 if (phba->work_hs & HS_FFER6)
1346                         /* Re-establishing Link */
1347                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1348                                         "1301 Re-establishing Link "
1349                                         "Data: x%x x%x x%x\n",
1350                                         phba->work_hs, phba->work_status[0],
1351                                         phba->work_status[1]);
1352                 if (phba->work_hs & HS_FFER8)
1353                         /* Device Zeroization */
1354                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1355                                         "2861 Host Authentication device "
1356                                         "zeroization Data:x%x x%x x%x\n",
1357                                         phba->work_hs, phba->work_status[0],
1358                                         phba->work_status[1]);
1359
1360                 spin_lock_irq(&phba->hbalock);
1361                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1362                 spin_unlock_irq(&phba->hbalock);
1363
1364                 /*
1365                 * Firmware stops when it triggled erratt with HS_FFER6.
1366                 * That could cause the I/Os dropped by the firmware.
1367                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1368                 * retry it after re-establishing link.
1369                 */
1370                 pring = &psli->ring[psli->fcp_ring];
1371                 lpfc_sli_abort_iocb_ring(phba, pring);
1372
1373                 /*
1374                  * There was a firmware error.  Take the hba offline and then
1375                  * attempt to restart it.
1376                  */
1377                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1378                 lpfc_offline(phba);
1379                 lpfc_sli_brdrestart(phba);
1380                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1381                         lpfc_unblock_mgmt_io(phba);
1382                         return;
1383                 }
1384                 lpfc_unblock_mgmt_io(phba);
1385         } else if (phba->work_hs & HS_CRIT_TEMP) {
1386                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1387                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1388                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1389                 temp_event_data.data = (uint32_t)temperature;
1390
1391                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1392                                 "0406 Adapter maximum temperature exceeded "
1393                                 "(%ld), taking this port offline "
1394                                 "Data: x%x x%x x%x\n",
1395                                 temperature, phba->work_hs,
1396                                 phba->work_status[0], phba->work_status[1]);
1397
1398                 shost = lpfc_shost_from_vport(phba->pport);
1399                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1400                                           sizeof(temp_event_data),
1401                                           (char *) &temp_event_data,
1402                                           SCSI_NL_VID_TYPE_PCI
1403                                           | PCI_VENDOR_ID_EMULEX);
1404
1405                 spin_lock_irq(&phba->hbalock);
1406                 phba->over_temp_state = HBA_OVER_TEMP;
1407                 spin_unlock_irq(&phba->hbalock);
1408                 lpfc_offline_eratt(phba);
1409
1410         } else {
1411                 /* The if clause above forces this code path when the status
1412                  * failure is a value other than FFER6. Do not call the offline
1413                  * twice. This is the adapter hardware error path.
1414                  */
1415                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1416                                 "0457 Adapter Hardware Error "
1417                                 "Data: x%x x%x x%x\n",
1418                                 phba->work_hs,
1419                                 phba->work_status[0], phba->work_status[1]);
1420
1421                 event_data = FC_REG_DUMP_EVENT;
1422                 shost = lpfc_shost_from_vport(vport);
1423                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1424                                 sizeof(event_data), (char *) &event_data,
1425                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1426
1427                 lpfc_offline_eratt(phba);
1428         }
1429         return;
1430 }
1431
1432 /**
1433  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1434  * @phba: pointer to lpfc hba data structure.
1435  * @mbx_action: flag for mailbox shutdown action.
1436  *
1437  * This routine is invoked to perform an SLI4 port PCI function reset in
1438  * response to port status register polling attention. It waits for port
1439  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1440  * During this process, interrupt vectors are freed and later requested
1441  * for handling possible port resource change.
1442  **/
1443 static int
1444 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action)
1445 {
1446         int rc;
1447         uint32_t intr_mode;
1448
1449         /*
1450          * On error status condition, driver need to wait for port
1451          * ready before performing reset.
1452          */
1453         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1454         if (!rc) {
1455                 /* need reset: attempt for port recovery */
1456                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1457                                 "2887 Reset Needed: Attempting Port "
1458                                 "Recovery...\n");
1459                 lpfc_offline_prep(phba, mbx_action);
1460                 lpfc_offline(phba);
1461                 /* release interrupt for possible resource change */
1462                 lpfc_sli4_disable_intr(phba);
1463                 lpfc_sli_brdrestart(phba);
1464                 /* request and enable interrupt */
1465                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1466                 if (intr_mode == LPFC_INTR_ERROR) {
1467                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1468                                         "3175 Failed to enable interrupt\n");
1469                         return -EIO;
1470                 } else {
1471                         phba->intr_mode = intr_mode;
1472                 }
1473                 rc = lpfc_online(phba);
1474                 if (rc == 0)
1475                         lpfc_unblock_mgmt_io(phba);
1476         }
1477         return rc;
1478 }
1479
1480 /**
1481  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1482  * @phba: pointer to lpfc hba data structure.
1483  *
1484  * This routine is invoked to handle the SLI4 HBA hardware error attention
1485  * conditions.
1486  **/
1487 static void
1488 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1489 {
1490         struct lpfc_vport *vport = phba->pport;
1491         uint32_t event_data;
1492         struct Scsi_Host *shost;
1493         uint32_t if_type;
1494         struct lpfc_register portstat_reg = {0};
1495         uint32_t reg_err1, reg_err2;
1496         uint32_t uerrlo_reg, uemasklo_reg;
1497         uint32_t pci_rd_rc1, pci_rd_rc2;
1498         int rc;
1499
1500         /* If the pci channel is offline, ignore possible errors, since
1501          * we cannot communicate with the pci card anyway.
1502          */
1503         if (pci_channel_offline(phba->pcidev))
1504                 return;
1505         /* If resets are disabled then leave the HBA alone and return */
1506         if (!phba->cfg_enable_hba_reset)
1507                 return;
1508
1509         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1510         switch (if_type) {
1511         case LPFC_SLI_INTF_IF_TYPE_0:
1512                 pci_rd_rc1 = lpfc_readl(
1513                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1514                                 &uerrlo_reg);
1515                 pci_rd_rc2 = lpfc_readl(
1516                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1517                                 &uemasklo_reg);
1518                 /* consider PCI bus read error as pci_channel_offline */
1519                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1520                         return;
1521                 lpfc_sli4_offline_eratt(phba);
1522                 break;
1523         case LPFC_SLI_INTF_IF_TYPE_2:
1524                 pci_rd_rc1 = lpfc_readl(
1525                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1526                                 &portstat_reg.word0);
1527                 /* consider PCI bus read error as pci_channel_offline */
1528                 if (pci_rd_rc1 == -EIO) {
1529                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1530                                 "3151 PCI bus read access failure: x%x\n",
1531                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1532                         return;
1533                 }
1534                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1535                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1536                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1537                         /* TODO: Register for Overtemp async events. */
1538                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1539                                 "2889 Port Overtemperature event, "
1540                                 "taking port offline\n");
1541                         spin_lock_irq(&phba->hbalock);
1542                         phba->over_temp_state = HBA_OVER_TEMP;
1543                         spin_unlock_irq(&phba->hbalock);
1544                         lpfc_sli4_offline_eratt(phba);
1545                         break;
1546                 }
1547                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1548                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART)
1549                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1550                                         "3143 Port Down: Firmware Restarted\n");
1551                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1552                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1553                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1554                                         "3144 Port Down: Debug Dump\n");
1555                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1556                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1557                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1558                                         "3145 Port Down: Provisioning\n");
1559
1560                 /* Check port status register for function reset */
1561                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT);
1562                 if (rc == 0) {
1563                         /* don't report event on forced debug dump */
1564                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1565                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1566                                 return;
1567                         else
1568                                 break;
1569                 }
1570                 /* fall through for not able to recover */
1571                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1572                                 "3152 Unrecoverable error, bring the port "
1573                                 "offline\n");
1574                 lpfc_sli4_offline_eratt(phba);
1575                 break;
1576         case LPFC_SLI_INTF_IF_TYPE_1:
1577         default:
1578                 break;
1579         }
1580         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1581                         "3123 Report dump event to upper layer\n");
1582         /* Send an internal error event to mgmt application */
1583         lpfc_board_errevt_to_mgmt(phba);
1584
1585         event_data = FC_REG_DUMP_EVENT;
1586         shost = lpfc_shost_from_vport(vport);
1587         fc_host_post_vendor_event(shost, fc_get_event_number(),
1588                                   sizeof(event_data), (char *) &event_data,
1589                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1590 }
1591
1592 /**
1593  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1594  * @phba: pointer to lpfc HBA data structure.
1595  *
1596  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1597  * routine from the API jump table function pointer from the lpfc_hba struct.
1598  *
1599  * Return codes
1600  *   0 - success.
1601  *   Any other value - error.
1602  **/
1603 void
1604 lpfc_handle_eratt(struct lpfc_hba *phba)
1605 {
1606         (*phba->lpfc_handle_eratt)(phba);
1607 }
1608
1609 /**
1610  * lpfc_handle_latt - The HBA link event handler
1611  * @phba: pointer to lpfc hba data structure.
1612  *
1613  * This routine is invoked from the worker thread to handle a HBA host
1614  * attention link event.
1615  **/
1616 void
1617 lpfc_handle_latt(struct lpfc_hba *phba)
1618 {
1619         struct lpfc_vport *vport = phba->pport;
1620         struct lpfc_sli   *psli = &phba->sli;
1621         LPFC_MBOXQ_t *pmb;
1622         volatile uint32_t control;
1623         struct lpfc_dmabuf *mp;
1624         int rc = 0;
1625
1626         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1627         if (!pmb) {
1628                 rc = 1;
1629                 goto lpfc_handle_latt_err_exit;
1630         }
1631
1632         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1633         if (!mp) {
1634                 rc = 2;
1635                 goto lpfc_handle_latt_free_pmb;
1636         }
1637
1638         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1639         if (!mp->virt) {
1640                 rc = 3;
1641                 goto lpfc_handle_latt_free_mp;
1642         }
1643
1644         /* Cleanup any outstanding ELS commands */
1645         lpfc_els_flush_all_cmd(phba);
1646
1647         psli->slistat.link_event++;
1648         lpfc_read_topology(phba, pmb, mp);
1649         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1650         pmb->vport = vport;
1651         /* Block ELS IOCBs until we have processed this mbox command */
1652         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1653         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1654         if (rc == MBX_NOT_FINISHED) {
1655                 rc = 4;
1656                 goto lpfc_handle_latt_free_mbuf;
1657         }
1658
1659         /* Clear Link Attention in HA REG */
1660         spin_lock_irq(&phba->hbalock);
1661         writel(HA_LATT, phba->HAregaddr);
1662         readl(phba->HAregaddr); /* flush */
1663         spin_unlock_irq(&phba->hbalock);
1664
1665         return;
1666
1667 lpfc_handle_latt_free_mbuf:
1668         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1669         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1670 lpfc_handle_latt_free_mp:
1671         kfree(mp);
1672 lpfc_handle_latt_free_pmb:
1673         mempool_free(pmb, phba->mbox_mem_pool);
1674 lpfc_handle_latt_err_exit:
1675         /* Enable Link attention interrupts */
1676         spin_lock_irq(&phba->hbalock);
1677         psli->sli_flag |= LPFC_PROCESS_LA;
1678         control = readl(phba->HCregaddr);
1679         control |= HC_LAINT_ENA;
1680         writel(control, phba->HCregaddr);
1681         readl(phba->HCregaddr); /* flush */
1682
1683         /* Clear Link Attention in HA REG */
1684         writel(HA_LATT, phba->HAregaddr);
1685         readl(phba->HAregaddr); /* flush */
1686         spin_unlock_irq(&phba->hbalock);
1687         lpfc_linkdown(phba);
1688         phba->link_state = LPFC_HBA_ERROR;
1689
1690         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1691                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1692
1693         return;
1694 }
1695
1696 /**
1697  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1698  * @phba: pointer to lpfc hba data structure.
1699  * @vpd: pointer to the vital product data.
1700  * @len: length of the vital product data in bytes.
1701  *
1702  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1703  * an array of characters. In this routine, the ModelName, ProgramType, and
1704  * ModelDesc, etc. fields of the phba data structure will be populated.
1705  *
1706  * Return codes
1707  *   0 - pointer to the VPD passed in is NULL
1708  *   1 - success
1709  **/
1710 int
1711 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1712 {
1713         uint8_t lenlo, lenhi;
1714         int Length;
1715         int i, j;
1716         int finished = 0;
1717         int index = 0;
1718
1719         if (!vpd)
1720                 return 0;
1721
1722         /* Vital Product */
1723         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1724                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1725                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1726                         (uint32_t) vpd[3]);
1727         while (!finished && (index < (len - 4))) {
1728                 switch (vpd[index]) {
1729                 case 0x82:
1730                 case 0x91:
1731                         index += 1;
1732                         lenlo = vpd[index];
1733                         index += 1;
1734                         lenhi = vpd[index];
1735                         index += 1;
1736                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1737                         index += i;
1738                         break;
1739                 case 0x90:
1740                         index += 1;
1741                         lenlo = vpd[index];
1742                         index += 1;
1743                         lenhi = vpd[index];
1744                         index += 1;
1745                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1746                         if (Length > len - index)
1747                                 Length = len - index;
1748                         while (Length > 0) {
1749                         /* Look for Serial Number */
1750                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1751                                 index += 2;
1752                                 i = vpd[index];
1753                                 index += 1;
1754                                 j = 0;
1755                                 Length -= (3+i);
1756                                 while(i--) {
1757                                         phba->SerialNumber[j++] = vpd[index++];
1758                                         if (j == 31)
1759                                                 break;
1760                                 }
1761                                 phba->SerialNumber[j] = 0;
1762                                 continue;
1763                         }
1764                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1765                                 phba->vpd_flag |= VPD_MODEL_DESC;
1766                                 index += 2;
1767                                 i = vpd[index];
1768                                 index += 1;
1769                                 j = 0;
1770                                 Length -= (3+i);
1771                                 while(i--) {
1772                                         phba->ModelDesc[j++] = vpd[index++];
1773                                         if (j == 255)
1774                                                 break;
1775                                 }
1776                                 phba->ModelDesc[j] = 0;
1777                                 continue;
1778                         }
1779                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1780                                 phba->vpd_flag |= VPD_MODEL_NAME;
1781                                 index += 2;
1782                                 i = vpd[index];
1783                                 index += 1;
1784                                 j = 0;
1785                                 Length -= (3+i);
1786                                 while(i--) {
1787                                         phba->ModelName[j++] = vpd[index++];
1788                                         if (j == 79)
1789                                                 break;
1790                                 }
1791                                 phba->ModelName[j] = 0;
1792                                 continue;
1793                         }
1794                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1795                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1796                                 index += 2;
1797                                 i = vpd[index];
1798                                 index += 1;
1799                                 j = 0;
1800                                 Length -= (3+i);
1801                                 while(i--) {
1802                                         phba->ProgramType[j++] = vpd[index++];
1803                                         if (j == 255)
1804                                                 break;
1805                                 }
1806                                 phba->ProgramType[j] = 0;
1807                                 continue;
1808                         }
1809                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1810                                 phba->vpd_flag |= VPD_PORT;
1811                                 index += 2;
1812                                 i = vpd[index];
1813                                 index += 1;
1814                                 j = 0;
1815                                 Length -= (3+i);
1816                                 while(i--) {
1817                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1818                                             (phba->sli4_hba.pport_name_sta ==
1819                                              LPFC_SLI4_PPNAME_GET)) {
1820                                                 j++;
1821                                                 index++;
1822                                         } else
1823                                                 phba->Port[j++] = vpd[index++];
1824                                         if (j == 19)
1825                                                 break;
1826                                 }
1827                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1828                                     (phba->sli4_hba.pport_name_sta ==
1829                                      LPFC_SLI4_PPNAME_NON))
1830                                         phba->Port[j] = 0;
1831                                 continue;
1832                         }
1833                         else {
1834                                 index += 2;
1835                                 i = vpd[index];
1836                                 index += 1;
1837                                 index += i;
1838                                 Length -= (3 + i);
1839                         }
1840                 }
1841                 finished = 0;
1842                 break;
1843                 case 0x78:
1844                         finished = 1;
1845                         break;
1846                 default:
1847                         index ++;
1848                         break;
1849                 }
1850         }
1851
1852         return(1);
1853 }
1854
1855 /**
1856  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1857  * @phba: pointer to lpfc hba data structure.
1858  * @mdp: pointer to the data structure to hold the derived model name.
1859  * @descp: pointer to the data structure to hold the derived description.
1860  *
1861  * This routine retrieves HBA's description based on its registered PCI device
1862  * ID. The @descp passed into this function points to an array of 256 chars. It
1863  * shall be returned with the model name, maximum speed, and the host bus type.
1864  * The @mdp passed into this function points to an array of 80 chars. When the
1865  * function returns, the @mdp will be filled with the model name.
1866  **/
1867 static void
1868 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1869 {
1870         lpfc_vpd_t *vp;
1871         uint16_t dev_id = phba->pcidev->device;
1872         int max_speed;
1873         int GE = 0;
1874         int oneConnect = 0; /* default is not a oneConnect */
1875         struct {
1876                 char *name;
1877                 char *bus;
1878                 char *function;
1879         } m = {"<Unknown>", "", ""};
1880
1881         if (mdp && mdp[0] != '\0'
1882                 && descp && descp[0] != '\0')
1883                 return;
1884
1885         if (phba->lmt & LMT_16Gb)
1886                 max_speed = 16;
1887         else if (phba->lmt & LMT_10Gb)
1888                 max_speed = 10;
1889         else if (phba->lmt & LMT_8Gb)
1890                 max_speed = 8;
1891         else if (phba->lmt & LMT_4Gb)
1892                 max_speed = 4;
1893         else if (phba->lmt & LMT_2Gb)
1894                 max_speed = 2;
1895         else if (phba->lmt & LMT_1Gb)
1896                 max_speed = 1;
1897         else
1898                 max_speed = 0;
1899
1900         vp = &phba->vpd;
1901
1902         switch (dev_id) {
1903         case PCI_DEVICE_ID_FIREFLY:
1904                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1905                 break;
1906         case PCI_DEVICE_ID_SUPERFLY:
1907                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1908                         m = (typeof(m)){"LP7000", "PCI",
1909                                         "Fibre Channel Adapter"};
1910                 else
1911                         m = (typeof(m)){"LP7000E", "PCI",
1912                                         "Fibre Channel Adapter"};
1913                 break;
1914         case PCI_DEVICE_ID_DRAGONFLY:
1915                 m = (typeof(m)){"LP8000", "PCI",
1916                                 "Fibre Channel Adapter"};
1917                 break;
1918         case PCI_DEVICE_ID_CENTAUR:
1919                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1920                         m = (typeof(m)){"LP9002", "PCI",
1921                                         "Fibre Channel Adapter"};
1922                 else
1923                         m = (typeof(m)){"LP9000", "PCI",
1924                                         "Fibre Channel Adapter"};
1925                 break;
1926         case PCI_DEVICE_ID_RFLY:
1927                 m = (typeof(m)){"LP952", "PCI",
1928                                 "Fibre Channel Adapter"};
1929                 break;
1930         case PCI_DEVICE_ID_PEGASUS:
1931                 m = (typeof(m)){"LP9802", "PCI-X",
1932                                 "Fibre Channel Adapter"};
1933                 break;
1934         case PCI_DEVICE_ID_THOR:
1935                 m = (typeof(m)){"LP10000", "PCI-X",
1936                                 "Fibre Channel Adapter"};
1937                 break;
1938         case PCI_DEVICE_ID_VIPER:
1939                 m = (typeof(m)){"LPX1000",  "PCI-X",
1940                                 "Fibre Channel Adapter"};
1941                 break;
1942         case PCI_DEVICE_ID_PFLY:
1943                 m = (typeof(m)){"LP982", "PCI-X",
1944                                 "Fibre Channel Adapter"};
1945                 break;
1946         case PCI_DEVICE_ID_TFLY:
1947                 m = (typeof(m)){"LP1050", "PCI-X",
1948                                 "Fibre Channel Adapter"};
1949                 break;
1950         case PCI_DEVICE_ID_HELIOS:
1951                 m = (typeof(m)){"LP11000", "PCI-X2",
1952                                 "Fibre Channel Adapter"};
1953                 break;
1954         case PCI_DEVICE_ID_HELIOS_SCSP:
1955                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1956                                 "Fibre Channel Adapter"};
1957                 break;
1958         case PCI_DEVICE_ID_HELIOS_DCSP:
1959                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1960                                 "Fibre Channel Adapter"};
1961                 break;
1962         case PCI_DEVICE_ID_NEPTUNE:
1963                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1964                 break;
1965         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1966                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1967                 break;
1968         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1969                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1970                 break;
1971         case PCI_DEVICE_ID_BMID:
1972                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1973                 break;
1974         case PCI_DEVICE_ID_BSMB:
1975                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1976                 break;
1977         case PCI_DEVICE_ID_ZEPHYR:
1978                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1979                 break;
1980         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1981                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1982                 break;
1983         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1984                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1985                 GE = 1;
1986                 break;
1987         case PCI_DEVICE_ID_ZMID:
1988                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1989                 break;
1990         case PCI_DEVICE_ID_ZSMB:
1991                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1992                 break;
1993         case PCI_DEVICE_ID_LP101:
1994                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1995                 break;
1996         case PCI_DEVICE_ID_LP10000S:
1997                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1998                 break;
1999         case PCI_DEVICE_ID_LP11000S:
2000                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
2001                 break;
2002         case PCI_DEVICE_ID_LPE11000S:
2003                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
2004                 break;
2005         case PCI_DEVICE_ID_SAT:
2006                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2007                 break;
2008         case PCI_DEVICE_ID_SAT_MID:
2009                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2010                 break;
2011         case PCI_DEVICE_ID_SAT_SMB:
2012                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2013                 break;
2014         case PCI_DEVICE_ID_SAT_DCSP:
2015                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2016                 break;
2017         case PCI_DEVICE_ID_SAT_SCSP:
2018                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2019                 break;
2020         case PCI_DEVICE_ID_SAT_S:
2021                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2022                 break;
2023         case PCI_DEVICE_ID_HORNET:
2024                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
2025                 GE = 1;
2026                 break;
2027         case PCI_DEVICE_ID_PROTEUS_VF:
2028                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2029                                 "Fibre Channel Adapter"};
2030                 break;
2031         case PCI_DEVICE_ID_PROTEUS_PF:
2032                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2033                                 "Fibre Channel Adapter"};
2034                 break;
2035         case PCI_DEVICE_ID_PROTEUS_S:
2036                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2037                                 "Fibre Channel Adapter"};
2038                 break;
2039         case PCI_DEVICE_ID_TIGERSHARK:
2040                 oneConnect = 1;
2041                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2042                 break;
2043         case PCI_DEVICE_ID_TOMCAT:
2044                 oneConnect = 1;
2045                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2046                 break;
2047         case PCI_DEVICE_ID_FALCON:
2048                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2049                                 "EmulexSecure Fibre"};
2050                 break;
2051         case PCI_DEVICE_ID_BALIUS:
2052                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2053                                 "Fibre Channel Adapter"};
2054                 break;
2055         case PCI_DEVICE_ID_LANCER_FC:
2056         case PCI_DEVICE_ID_LANCER_FC_VF:
2057                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2058                 break;
2059         case PCI_DEVICE_ID_LANCER_FCOE:
2060         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2061                 oneConnect = 1;
2062                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2063                 break;
2064         case PCI_DEVICE_ID_SKYHAWK:
2065         case PCI_DEVICE_ID_SKYHAWK_VF:
2066                 oneConnect = 1;
2067                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2068                 break;
2069         default:
2070                 m = (typeof(m)){"Unknown", "", ""};
2071                 break;
2072         }
2073
2074         if (mdp && mdp[0] == '\0')
2075                 snprintf(mdp, 79,"%s", m.name);
2076         /*
2077          * oneConnect hba requires special processing, they are all initiators
2078          * and we put the port number on the end
2079          */
2080         if (descp && descp[0] == '\0') {
2081                 if (oneConnect)
2082                         snprintf(descp, 255,
2083                                 "Emulex OneConnect %s, %s Initiator %s",
2084                                 m.name, m.function,
2085                                 phba->Port);
2086                 else if (max_speed == 0)
2087                         snprintf(descp, 255,
2088                                 "Emulex %s %s %s ",
2089                                 m.name, m.bus, m.function);
2090                 else
2091                         snprintf(descp, 255,
2092                                 "Emulex %s %d%s %s %s",
2093                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2094                                 m.bus, m.function);
2095         }
2096 }
2097
2098 /**
2099  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2100  * @phba: pointer to lpfc hba data structure.
2101  * @pring: pointer to a IOCB ring.
2102  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2103  *
2104  * This routine posts a given number of IOCBs with the associated DMA buffer
2105  * descriptors specified by the cnt argument to the given IOCB ring.
2106  *
2107  * Return codes
2108  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2109  **/
2110 int
2111 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2112 {
2113         IOCB_t *icmd;
2114         struct lpfc_iocbq *iocb;
2115         struct lpfc_dmabuf *mp1, *mp2;
2116
2117         cnt += pring->missbufcnt;
2118
2119         /* While there are buffers to post */
2120         while (cnt > 0) {
2121                 /* Allocate buffer for  command iocb */
2122                 iocb = lpfc_sli_get_iocbq(phba);
2123                 if (iocb == NULL) {
2124                         pring->missbufcnt = cnt;
2125                         return cnt;
2126                 }
2127                 icmd = &iocb->iocb;
2128
2129                 /* 2 buffers can be posted per command */
2130                 /* Allocate buffer to post */
2131                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2132                 if (mp1)
2133                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2134                 if (!mp1 || !mp1->virt) {
2135                         kfree(mp1);
2136                         lpfc_sli_release_iocbq(phba, iocb);
2137                         pring->missbufcnt = cnt;
2138                         return cnt;
2139                 }
2140
2141                 INIT_LIST_HEAD(&mp1->list);
2142                 /* Allocate buffer to post */
2143                 if (cnt > 1) {
2144                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2145                         if (mp2)
2146                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2147                                                             &mp2->phys);
2148                         if (!mp2 || !mp2->virt) {
2149                                 kfree(mp2);
2150                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2151                                 kfree(mp1);
2152                                 lpfc_sli_release_iocbq(phba, iocb);
2153                                 pring->missbufcnt = cnt;
2154                                 return cnt;
2155                         }
2156
2157                         INIT_LIST_HEAD(&mp2->list);
2158                 } else {
2159                         mp2 = NULL;
2160                 }
2161
2162                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2163                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2164                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2165                 icmd->ulpBdeCount = 1;
2166                 cnt--;
2167                 if (mp2) {
2168                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2169                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2170                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2171                         cnt--;
2172                         icmd->ulpBdeCount = 2;
2173                 }
2174
2175                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2176                 icmd->ulpLe = 1;
2177
2178                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2179                     IOCB_ERROR) {
2180                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2181                         kfree(mp1);
2182                         cnt++;
2183                         if (mp2) {
2184                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2185                                 kfree(mp2);
2186                                 cnt++;
2187                         }
2188                         lpfc_sli_release_iocbq(phba, iocb);
2189                         pring->missbufcnt = cnt;
2190                         return cnt;
2191                 }
2192                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2193                 if (mp2)
2194                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2195         }
2196         pring->missbufcnt = 0;
2197         return 0;
2198 }
2199
2200 /**
2201  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2202  * @phba: pointer to lpfc hba data structure.
2203  *
2204  * This routine posts initial receive IOCB buffers to the ELS ring. The
2205  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2206  * set to 64 IOCBs.
2207  *
2208  * Return codes
2209  *   0 - success (currently always success)
2210  **/
2211 static int
2212 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2213 {
2214         struct lpfc_sli *psli = &phba->sli;
2215
2216         /* Ring 0, ELS / CT buffers */
2217         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2218         /* Ring 2 - FCP no buffers needed */
2219
2220         return 0;
2221 }
2222
2223 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2224
2225 /**
2226  * lpfc_sha_init - Set up initial array of hash table entries
2227  * @HashResultPointer: pointer to an array as hash table.
2228  *
2229  * This routine sets up the initial values to the array of hash table entries
2230  * for the LC HBAs.
2231  **/
2232 static void
2233 lpfc_sha_init(uint32_t * HashResultPointer)
2234 {
2235         HashResultPointer[0] = 0x67452301;
2236         HashResultPointer[1] = 0xEFCDAB89;
2237         HashResultPointer[2] = 0x98BADCFE;
2238         HashResultPointer[3] = 0x10325476;
2239         HashResultPointer[4] = 0xC3D2E1F0;
2240 }
2241
2242 /**
2243  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2244  * @HashResultPointer: pointer to an initial/result hash table.
2245  * @HashWorkingPointer: pointer to an working hash table.
2246  *
2247  * This routine iterates an initial hash table pointed by @HashResultPointer
2248  * with the values from the working hash table pointeed by @HashWorkingPointer.
2249  * The results are putting back to the initial hash table, returned through
2250  * the @HashResultPointer as the result hash table.
2251  **/
2252 static void
2253 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2254 {
2255         int t;
2256         uint32_t TEMP;
2257         uint32_t A, B, C, D, E;
2258         t = 16;
2259         do {
2260                 HashWorkingPointer[t] =
2261                     S(1,
2262                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2263                                                                      8] ^
2264                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2265         } while (++t <= 79);
2266         t = 0;
2267         A = HashResultPointer[0];
2268         B = HashResultPointer[1];
2269         C = HashResultPointer[2];
2270         D = HashResultPointer[3];
2271         E = HashResultPointer[4];
2272
2273         do {
2274                 if (t < 20) {
2275                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2276                 } else if (t < 40) {
2277                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2278                 } else if (t < 60) {
2279                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2280                 } else {
2281                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2282                 }
2283                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2284                 E = D;
2285                 D = C;
2286                 C = S(30, B);
2287                 B = A;
2288                 A = TEMP;
2289         } while (++t <= 79);
2290
2291         HashResultPointer[0] += A;
2292         HashResultPointer[1] += B;
2293         HashResultPointer[2] += C;
2294         HashResultPointer[3] += D;
2295         HashResultPointer[4] += E;
2296
2297 }
2298
2299 /**
2300  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2301  * @RandomChallenge: pointer to the entry of host challenge random number array.
2302  * @HashWorking: pointer to the entry of the working hash array.
2303  *
2304  * This routine calculates the working hash array referred by @HashWorking
2305  * from the challenge random numbers associated with the host, referred by
2306  * @RandomChallenge. The result is put into the entry of the working hash
2307  * array and returned by reference through @HashWorking.
2308  **/
2309 static void
2310 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2311 {
2312         *HashWorking = (*RandomChallenge ^ *HashWorking);
2313 }
2314
2315 /**
2316  * lpfc_hba_init - Perform special handling for LC HBA initialization
2317  * @phba: pointer to lpfc hba data structure.
2318  * @hbainit: pointer to an array of unsigned 32-bit integers.
2319  *
2320  * This routine performs the special handling for LC HBA initialization.
2321  **/
2322 void
2323 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2324 {
2325         int t;
2326         uint32_t *HashWorking;
2327         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2328
2329         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2330         if (!HashWorking)
2331                 return;
2332
2333         HashWorking[0] = HashWorking[78] = *pwwnn++;
2334         HashWorking[1] = HashWorking[79] = *pwwnn;
2335
2336         for (t = 0; t < 7; t++)
2337                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2338
2339         lpfc_sha_init(hbainit);
2340         lpfc_sha_iterate(hbainit, HashWorking);
2341         kfree(HashWorking);
2342 }
2343
2344 /**
2345  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2346  * @vport: pointer to a virtual N_Port data structure.
2347  *
2348  * This routine performs the necessary cleanups before deleting the @vport.
2349  * It invokes the discovery state machine to perform necessary state
2350  * transitions and to release the ndlps associated with the @vport. Note,
2351  * the physical port is treated as @vport 0.
2352  **/
2353 void
2354 lpfc_cleanup(struct lpfc_vport *vport)
2355 {
2356         struct lpfc_hba   *phba = vport->phba;
2357         struct lpfc_nodelist *ndlp, *next_ndlp;
2358         int i = 0;
2359
2360         if (phba->link_state > LPFC_LINK_DOWN)
2361                 lpfc_port_link_failure(vport);
2362
2363         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2364                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2365                         ndlp = lpfc_enable_node(vport, ndlp,
2366                                                 NLP_STE_UNUSED_NODE);
2367                         if (!ndlp)
2368                                 continue;
2369                         spin_lock_irq(&phba->ndlp_lock);
2370                         NLP_SET_FREE_REQ(ndlp);
2371                         spin_unlock_irq(&phba->ndlp_lock);
2372                         /* Trigger the release of the ndlp memory */
2373                         lpfc_nlp_put(ndlp);
2374                         continue;
2375                 }
2376                 spin_lock_irq(&phba->ndlp_lock);
2377                 if (NLP_CHK_FREE_REQ(ndlp)) {
2378                         /* The ndlp should not be in memory free mode already */
2379                         spin_unlock_irq(&phba->ndlp_lock);
2380                         continue;
2381                 } else
2382                         /* Indicate request for freeing ndlp memory */
2383                         NLP_SET_FREE_REQ(ndlp);
2384                 spin_unlock_irq(&phba->ndlp_lock);
2385
2386                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2387                     ndlp->nlp_DID == Fabric_DID) {
2388                         /* Just free up ndlp with Fabric_DID for vports */
2389                         lpfc_nlp_put(ndlp);
2390                         continue;
2391                 }
2392
2393                 /* take care of nodes in unused state before the state
2394                  * machine taking action.
2395                  */
2396                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2397                         lpfc_nlp_put(ndlp);
2398                         continue;
2399                 }
2400
2401                 if (ndlp->nlp_type & NLP_FABRIC)
2402                         lpfc_disc_state_machine(vport, ndlp, NULL,
2403                                         NLP_EVT_DEVICE_RECOVERY);
2404
2405                 lpfc_disc_state_machine(vport, ndlp, NULL,
2406                                              NLP_EVT_DEVICE_RM);
2407         }
2408
2409         /* At this point, ALL ndlp's should be gone
2410          * because of the previous NLP_EVT_DEVICE_RM.
2411          * Lets wait for this to happen, if needed.
2412          */
2413         while (!list_empty(&vport->fc_nodes)) {
2414                 if (i++ > 3000) {
2415                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2416                                 "0233 Nodelist not empty\n");
2417                         list_for_each_entry_safe(ndlp, next_ndlp,
2418                                                 &vport->fc_nodes, nlp_listp) {
2419                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2420                                                 LOG_NODE,
2421                                                 "0282 did:x%x ndlp:x%p "
2422                                                 "usgmap:x%x refcnt:%d\n",
2423                                                 ndlp->nlp_DID, (void *)ndlp,
2424                                                 ndlp->nlp_usg_map,
2425                                                 atomic_read(
2426                                                         &ndlp->kref.refcount));
2427                         }
2428                         break;
2429                 }
2430
2431                 /* Wait for any activity on ndlps to settle */
2432                 msleep(10);
2433         }
2434         lpfc_cleanup_vports_rrqs(vport, NULL);
2435 }
2436
2437 /**
2438  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2439  * @vport: pointer to a virtual N_Port data structure.
2440  *
2441  * This routine stops all the timers associated with a @vport. This function
2442  * is invoked before disabling or deleting a @vport. Note that the physical
2443  * port is treated as @vport 0.
2444  **/
2445 void
2446 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2447 {
2448         del_timer_sync(&vport->els_tmofunc);
2449         del_timer_sync(&vport->fc_fdmitmo);
2450         del_timer_sync(&vport->delayed_disc_tmo);
2451         lpfc_can_disctmo(vport);
2452         return;
2453 }
2454
2455 /**
2456  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2457  * @phba: pointer to lpfc hba data structure.
2458  *
2459  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2460  * caller of this routine should already hold the host lock.
2461  **/
2462 void
2463 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2464 {
2465         /* Clear pending FCF rediscovery wait flag */
2466         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2467
2468         /* Now, try to stop the timer */
2469         del_timer(&phba->fcf.redisc_wait);
2470 }
2471
2472 /**
2473  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2474  * @phba: pointer to lpfc hba data structure.
2475  *
2476  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2477  * checks whether the FCF rediscovery wait timer is pending with the host
2478  * lock held before proceeding with disabling the timer and clearing the
2479  * wait timer pendig flag.
2480  **/
2481 void
2482 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2483 {
2484         spin_lock_irq(&phba->hbalock);
2485         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2486                 /* FCF rediscovery timer already fired or stopped */
2487                 spin_unlock_irq(&phba->hbalock);
2488                 return;
2489         }
2490         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2491         /* Clear failover in progress flags */
2492         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2493         spin_unlock_irq(&phba->hbalock);
2494 }
2495
2496 /**
2497  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2498  * @phba: pointer to lpfc hba data structure.
2499  *
2500  * This routine stops all the timers associated with a HBA. This function is
2501  * invoked before either putting a HBA offline or unloading the driver.
2502  **/
2503 void
2504 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2505 {
2506         lpfc_stop_vport_timers(phba->pport);
2507         del_timer_sync(&phba->sli.mbox_tmo);
2508         del_timer_sync(&phba->fabric_block_timer);
2509         del_timer_sync(&phba->eratt_poll);
2510         del_timer_sync(&phba->hb_tmofunc);
2511         if (phba->sli_rev == LPFC_SLI_REV4) {
2512                 del_timer_sync(&phba->rrq_tmr);
2513                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2514         }
2515         phba->hb_outstanding = 0;
2516
2517         switch (phba->pci_dev_grp) {
2518         case LPFC_PCI_DEV_LP:
2519                 /* Stop any LightPulse device specific driver timers */
2520                 del_timer_sync(&phba->fcp_poll_timer);
2521                 break;
2522         case LPFC_PCI_DEV_OC:
2523                 /* Stop any OneConnect device sepcific driver timers */
2524                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2525                 break;
2526         default:
2527                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2528                                 "0297 Invalid device group (x%x)\n",
2529                                 phba->pci_dev_grp);
2530                 break;
2531         }
2532         return;
2533 }
2534
2535 /**
2536  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2537  * @phba: pointer to lpfc hba data structure.
2538  *
2539  * This routine marks a HBA's management interface as blocked. Once the HBA's
2540  * management interface is marked as blocked, all the user space access to
2541  * the HBA, whether they are from sysfs interface or libdfc interface will
2542  * all be blocked. The HBA is set to block the management interface when the
2543  * driver prepares the HBA interface for online or offline.
2544  **/
2545 static void
2546 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2547 {
2548         unsigned long iflag;
2549         uint8_t actcmd = MBX_HEARTBEAT;
2550         unsigned long timeout;
2551
2552         spin_lock_irqsave(&phba->hbalock, iflag);
2553         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2554         spin_unlock_irqrestore(&phba->hbalock, iflag);
2555         if (mbx_action == LPFC_MBX_NO_WAIT)
2556                 return;
2557         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2558         spin_lock_irqsave(&phba->hbalock, iflag);
2559         if (phba->sli.mbox_active) {
2560                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2561                 /* Determine how long we might wait for the active mailbox
2562                  * command to be gracefully completed by firmware.
2563                  */
2564                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2565                                 phba->sli.mbox_active) * 1000) + jiffies;
2566         }
2567         spin_unlock_irqrestore(&phba->hbalock, iflag);
2568
2569         /* Wait for the outstnading mailbox command to complete */
2570         while (phba->sli.mbox_active) {
2571                 /* Check active mailbox complete status every 2ms */
2572                 msleep(2);
2573                 if (time_after(jiffies, timeout)) {
2574                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2575                                 "2813 Mgmt IO is Blocked %x "
2576                                 "- mbox cmd %x still active\n",
2577                                 phba->sli.sli_flag, actcmd);
2578                         break;
2579                 }
2580         }
2581 }
2582
2583 /**
2584  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2585  * @phba: pointer to lpfc hba data structure.
2586  *
2587  * Allocate RPIs for all active remote nodes. This is needed whenever
2588  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2589  * is to fixup the temporary rpi assignments.
2590  **/
2591 void
2592 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2593 {
2594         struct lpfc_nodelist  *ndlp, *next_ndlp;
2595         struct lpfc_vport **vports;
2596         int i;
2597
2598         if (phba->sli_rev != LPFC_SLI_REV4)
2599                 return;
2600
2601         vports = lpfc_create_vport_work_array(phba);
2602         if (vports != NULL) {
2603                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2604                         if (vports[i]->load_flag & FC_UNLOADING)
2605                                 continue;
2606
2607                         list_for_each_entry_safe(ndlp, next_ndlp,
2608                                                  &vports[i]->fc_nodes,
2609                                                  nlp_listp) {
2610                                 if (NLP_CHK_NODE_ACT(ndlp))
2611                                         ndlp->nlp_rpi =
2612                                                 lpfc_sli4_alloc_rpi(phba);
2613                         }
2614                 }
2615         }
2616         lpfc_destroy_vport_work_array(phba, vports);
2617 }
2618
2619 /**
2620  * lpfc_online - Initialize and bring a HBA online
2621  * @phba: pointer to lpfc hba data structure.
2622  *
2623  * This routine initializes the HBA and brings a HBA online. During this
2624  * process, the management interface is blocked to prevent user space access
2625  * to the HBA interfering with the driver initialization.
2626  *
2627  * Return codes
2628  *   0 - successful
2629  *   1 - failed
2630  **/
2631 int
2632 lpfc_online(struct lpfc_hba *phba)
2633 {
2634         struct lpfc_vport *vport;
2635         struct lpfc_vport **vports;
2636         int i;
2637
2638         if (!phba)
2639                 return 0;
2640         vport = phba->pport;
2641
2642         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2643                 return 0;
2644
2645         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2646                         "0458 Bring Adapter online\n");
2647
2648         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2649
2650         if (!lpfc_sli_queue_setup(phba)) {
2651                 lpfc_unblock_mgmt_io(phba);
2652                 return 1;
2653         }
2654
2655         if (phba->sli_rev == LPFC_SLI_REV4) {
2656                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2657                         lpfc_unblock_mgmt_io(phba);
2658                         return 1;
2659                 }
2660         } else {
2661                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2662                         lpfc_unblock_mgmt_io(phba);
2663                         return 1;
2664                 }
2665         }
2666
2667         vports = lpfc_create_vport_work_array(phba);
2668         if (vports != NULL)
2669                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2670                         struct Scsi_Host *shost;
2671                         shost = lpfc_shost_from_vport(vports[i]);
2672                         spin_lock_irq(shost->host_lock);
2673                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2674                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2675                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2676                         if (phba->sli_rev == LPFC_SLI_REV4)
2677                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2678                         spin_unlock_irq(shost->host_lock);
2679                 }
2680                 lpfc_destroy_vport_work_array(phba, vports);
2681
2682         lpfc_unblock_mgmt_io(phba);
2683         return 0;
2684 }
2685
2686 /**
2687  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2688  * @phba: pointer to lpfc hba data structure.
2689  *
2690  * This routine marks a HBA's management interface as not blocked. Once the
2691  * HBA's management interface is marked as not blocked, all the user space
2692  * access to the HBA, whether they are from sysfs interface or libdfc
2693  * interface will be allowed. The HBA is set to block the management interface
2694  * when the driver prepares the HBA interface for online or offline and then
2695  * set to unblock the management interface afterwards.
2696  **/
2697 void
2698 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2699 {
2700         unsigned long iflag;
2701
2702         spin_lock_irqsave(&phba->hbalock, iflag);
2703         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2704         spin_unlock_irqrestore(&phba->hbalock, iflag);
2705 }
2706
2707 /**
2708  * lpfc_offline_prep - Prepare a HBA to be brought offline
2709  * @phba: pointer to lpfc hba data structure.
2710  *
2711  * This routine is invoked to prepare a HBA to be brought offline. It performs
2712  * unregistration login to all the nodes on all vports and flushes the mailbox
2713  * queue to make it ready to be brought offline.
2714  **/
2715 void
2716 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2717 {
2718         struct lpfc_vport *vport = phba->pport;
2719         struct lpfc_nodelist  *ndlp, *next_ndlp;
2720         struct lpfc_vport **vports;
2721         struct Scsi_Host *shost;
2722         int i;
2723
2724         if (vport->fc_flag & FC_OFFLINE_MODE)
2725                 return;
2726
2727         lpfc_block_mgmt_io(phba, mbx_action);
2728
2729         lpfc_linkdown(phba);
2730
2731         /* Issue an unreg_login to all nodes on all vports */
2732         vports = lpfc_create_vport_work_array(phba);
2733         if (vports != NULL) {
2734                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2735                         if (vports[i]->load_flag & FC_UNLOADING)
2736                                 continue;
2737                         shost = lpfc_shost_from_vport(vports[i]);
2738                         spin_lock_irq(shost->host_lock);
2739                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2740                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2741                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2742                         spin_unlock_irq(shost->host_lock);
2743
2744                         shost = lpfc_shost_from_vport(vports[i]);
2745                         list_for_each_entry_safe(ndlp, next_ndlp,
2746                                                  &vports[i]->fc_nodes,
2747                                                  nlp_listp) {
2748                                 if (!NLP_CHK_NODE_ACT(ndlp))
2749                                         continue;
2750                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2751                                         continue;
2752                                 if (ndlp->nlp_type & NLP_FABRIC) {
2753                                         lpfc_disc_state_machine(vports[i], ndlp,
2754                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2755                                         lpfc_disc_state_machine(vports[i], ndlp,
2756                                                 NULL, NLP_EVT_DEVICE_RM);
2757                                 }
2758                                 spin_lock_irq(shost->host_lock);
2759                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2760                                 spin_unlock_irq(shost->host_lock);
2761                                 /*
2762                                  * Whenever an SLI4 port goes offline, free the
2763                                  * RPI. Get a new RPI when the adapter port
2764                                  * comes back online.
2765                                  */
2766                                 if (phba->sli_rev == LPFC_SLI_REV4)
2767                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2768                                 lpfc_unreg_rpi(vports[i], ndlp);
2769                         }
2770                 }
2771         }
2772         lpfc_destroy_vport_work_array(phba, vports);
2773
2774         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2775 }
2776
2777 /**
2778  * lpfc_offline - Bring a HBA offline
2779  * @phba: pointer to lpfc hba data structure.
2780  *
2781  * This routine actually brings a HBA offline. It stops all the timers
2782  * associated with the HBA, brings down the SLI layer, and eventually
2783  * marks the HBA as in offline state for the upper layer protocol.
2784  **/
2785 void
2786 lpfc_offline(struct lpfc_hba *phba)
2787 {
2788         struct Scsi_Host  *shost;
2789         struct lpfc_vport **vports;
2790         int i;
2791
2792         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2793                 return;
2794
2795         /* stop port and all timers associated with this hba */
2796         lpfc_stop_port(phba);
2797         vports = lpfc_create_vport_work_array(phba);
2798         if (vports != NULL)
2799                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2800                         lpfc_stop_vport_timers(vports[i]);
2801         lpfc_destroy_vport_work_array(phba, vports);
2802         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2803                         "0460 Bring Adapter offline\n");
2804         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2805            now.  */
2806         lpfc_sli_hba_down(phba);
2807         spin_lock_irq(&phba->hbalock);
2808         phba->work_ha = 0;
2809         spin_unlock_irq(&phba->hbalock);
2810         vports = lpfc_create_vport_work_array(phba);
2811         if (vports != NULL)
2812                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2813                         shost = lpfc_shost_from_vport(vports[i]);
2814                         spin_lock_irq(shost->host_lock);
2815                         vports[i]->work_port_events = 0;
2816                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2817                         spin_unlock_irq(shost->host_lock);
2818                 }
2819         lpfc_destroy_vport_work_array(phba, vports);
2820 }
2821
2822 /**
2823  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2824  * @phba: pointer to lpfc hba data structure.
2825  *
2826  * This routine is to free all the SCSI buffers and IOCBs from the driver
2827  * list back to kernel. It is called from lpfc_pci_remove_one to free
2828  * the internal resources before the device is removed from the system.
2829  **/
2830 static void
2831 lpfc_scsi_free(struct lpfc_hba *phba)
2832 {
2833         struct lpfc_scsi_buf *sb, *sb_next;
2834         struct lpfc_iocbq *io, *io_next;
2835
2836         spin_lock_irq(&phba->hbalock);
2837         /* Release all the lpfc_scsi_bufs maintained by this host. */
2838         spin_lock(&phba->scsi_buf_list_lock);
2839         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2840                 list_del(&sb->list);
2841                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2842                               sb->dma_handle);
2843                 kfree(sb);
2844                 phba->total_scsi_bufs--;
2845         }
2846         spin_unlock(&phba->scsi_buf_list_lock);
2847
2848         /* Release all the lpfc_iocbq entries maintained by this host. */
2849         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2850                 list_del(&io->list);
2851                 kfree(io);
2852                 phba->total_iocbq_bufs--;
2853         }
2854
2855         spin_unlock_irq(&phba->hbalock);
2856 }
2857
2858 /**
2859  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
2860  * @phba: pointer to lpfc hba data structure.
2861  *
2862  * This routine first calculates the sizes of the current els and allocated
2863  * scsi sgl lists, and then goes through all sgls to updates the physical
2864  * XRIs assigned due to port function reset. During port initialization, the
2865  * current els and allocated scsi sgl lists are 0s.
2866  *
2867  * Return codes
2868  *   0 - successful (for now, it always returns 0)
2869  **/
2870 int
2871 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
2872 {
2873         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
2874         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
2875         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
2876         LIST_HEAD(els_sgl_list);
2877         LIST_HEAD(scsi_sgl_list);
2878         int rc;
2879
2880         /*
2881          * update on pci function's els xri-sgl list
2882          */
2883         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
2884         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
2885                 /* els xri-sgl expanded */
2886                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
2887                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2888                                 "3157 ELS xri-sgl count increased from "
2889                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2890                                 els_xri_cnt);
2891                 /* allocate the additional els sgls */
2892                 for (i = 0; i < xri_cnt; i++) {
2893                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
2894                                              GFP_KERNEL);
2895                         if (sglq_entry == NULL) {
2896                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2897                                                 "2562 Failure to allocate an "
2898                                                 "ELS sgl entry:%d\n", i);
2899                                 rc = -ENOMEM;
2900                                 goto out_free_mem;
2901                         }
2902                         sglq_entry->buff_type = GEN_BUFF_TYPE;
2903                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
2904                                                            &sglq_entry->phys);
2905                         if (sglq_entry->virt == NULL) {
2906                                 kfree(sglq_entry);
2907                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2908                                                 "2563 Failure to allocate an "
2909                                                 "ELS mbuf:%d\n", i);
2910                                 rc = -ENOMEM;
2911                                 goto out_free_mem;
2912                         }
2913                         sglq_entry->sgl = sglq_entry->virt;
2914                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
2915                         sglq_entry->state = SGL_FREED;
2916                         list_add_tail(&sglq_entry->list, &els_sgl_list);
2917                 }
2918                 spin_lock(&phba->hbalock);
2919                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2920                 spin_unlock(&phba->hbalock);
2921         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
2922                 /* els xri-sgl shrinked */
2923                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
2924                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2925                                 "3158 ELS xri-sgl count decreased from "
2926                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2927                                 els_xri_cnt);
2928                 spin_lock_irq(&phba->hbalock);
2929                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
2930                 spin_unlock_irq(&phba->hbalock);
2931                 /* release extra els sgls from list */
2932                 for (i = 0; i < xri_cnt; i++) {
2933                         list_remove_head(&els_sgl_list,
2934                                          sglq_entry, struct lpfc_sglq, list);
2935                         if (sglq_entry) {
2936                                 lpfc_mbuf_free(phba, sglq_entry->virt,
2937                                                sglq_entry->phys);
2938                                 kfree(sglq_entry);
2939                         }
2940                 }
2941                 spin_lock_irq(&phba->hbalock);
2942                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2943                 spin_unlock_irq(&phba->hbalock);
2944         } else
2945                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2946                                 "3163 ELS xri-sgl count unchanged: %d\n",
2947                                 els_xri_cnt);
2948         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
2949
2950         /* update xris to els sgls on the list */
2951         sglq_entry = NULL;
2952         sglq_entry_next = NULL;
2953         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
2954                                  &phba->sli4_hba.lpfc_sgl_list, list) {
2955                 lxri = lpfc_sli4_next_xritag(phba);
2956                 if (lxri == NO_XRI) {
2957                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2958                                         "2400 Failed to allocate xri for "
2959                                         "ELS sgl\n");
2960                         rc = -ENOMEM;
2961                         goto out_free_mem;
2962                 }
2963                 sglq_entry->sli4_lxritag = lxri;
2964                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
2965         }
2966
2967         /*
2968          * update on pci function's allocated scsi xri-sgl list
2969          */
2970         phba->total_scsi_bufs = 0;
2971
2972         /* maximum number of xris available for scsi buffers */
2973         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
2974                                       els_xri_cnt;
2975
2976         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2977                         "2401 Current allocated SCSI xri-sgl count:%d, "
2978                         "maximum  SCSI xri count:%d\n",
2979                         phba->sli4_hba.scsi_xri_cnt,
2980                         phba->sli4_hba.scsi_xri_max);
2981
2982         spin_lock_irq(&phba->scsi_buf_list_lock);
2983         list_splice_init(&phba->lpfc_scsi_buf_list, &scsi_sgl_list);
2984         spin_unlock_irq(&phba->scsi_buf_list_lock);
2985
2986         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
2987                 /* max scsi xri shrinked below the allocated scsi buffers */
2988                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
2989                                         phba->sli4_hba.scsi_xri_max;
2990                 /* release the extra allocated scsi buffers */
2991                 for (i = 0; i < scsi_xri_cnt; i++) {
2992                         list_remove_head(&scsi_sgl_list, psb,
2993                                          struct lpfc_scsi_buf, list);
2994                         pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data,
2995                                       psb->dma_handle);
2996                         kfree(psb);
2997                 }
2998                 spin_lock_irq(&phba->scsi_buf_list_lock);
2999                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3000                 spin_unlock_irq(&phba->scsi_buf_list_lock);
3001         }
3002
3003         /* update xris associated to remaining allocated scsi buffers */
3004         psb = NULL;
3005         psb_next = NULL;
3006         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3007                 lxri = lpfc_sli4_next_xritag(phba);
3008                 if (lxri == NO_XRI) {
3009                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3010                                         "2560 Failed to allocate xri for "
3011                                         "scsi buffer\n");
3012                         rc = -ENOMEM;
3013                         goto out_free_mem;
3014                 }
3015                 psb->cur_iocbq.sli4_lxritag = lxri;
3016                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3017         }
3018         spin_lock(&phba->scsi_buf_list_lock);
3019         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list);
3020         spin_unlock(&phba->scsi_buf_list_lock);
3021
3022         return 0;
3023
3024 out_free_mem:
3025         lpfc_free_els_sgl_list(phba);
3026         lpfc_scsi_free(phba);
3027         return rc;
3028 }
3029
3030 /**
3031  * lpfc_create_port - Create an FC port
3032  * @phba: pointer to lpfc hba data structure.
3033  * @instance: a unique integer ID to this FC port.
3034  * @dev: pointer to the device data structure.
3035  *
3036  * This routine creates a FC port for the upper layer protocol. The FC port
3037  * can be created on top of either a physical port or a virtual port provided
3038  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3039  * and associates the FC port created before adding the shost into the SCSI
3040  * layer.
3041  *
3042  * Return codes
3043  *   @vport - pointer to the virtual N_Port data structure.
3044  *   NULL - port create failed.
3045  **/
3046 struct lpfc_vport *
3047 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3048 {
3049         struct lpfc_vport *vport;
3050         struct Scsi_Host  *shost;
3051         int error = 0;
3052
3053         if (dev != &phba->pcidev->dev)
3054                 shost = scsi_host_alloc(&lpfc_vport_template,
3055                                         sizeof(struct lpfc_vport));
3056         else
3057                 shost = scsi_host_alloc(&lpfc_template,
3058                                         sizeof(struct lpfc_vport));
3059         if (!shost)
3060                 goto out;
3061
3062         vport = (struct lpfc_vport *) shost->hostdata;
3063         vport->phba = phba;
3064         vport->load_flag |= FC_LOADING;
3065         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3066         vport->fc_rscn_flush = 0;
3067
3068         lpfc_get_vport_cfgparam(vport);
3069         shost->unique_id = instance;
3070         shost->max_id = LPFC_MAX_TARGET;
3071         shost->max_lun = vport->cfg_max_luns;
3072         shost->this_id = -1;
3073         shost->max_cmd_len = 16;
3074         if (phba->sli_rev == LPFC_SLI_REV4) {
3075                 shost->dma_boundary =
3076                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3077                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3078         }
3079
3080         /*
3081          * Set initial can_queue value since 0 is no longer supported and
3082          * scsi_add_host will fail. This will be adjusted later based on the
3083          * max xri value determined in hba setup.
3084          */
3085         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3086         if (dev != &phba->pcidev->dev) {
3087                 shost->transportt = lpfc_vport_transport_template;
3088                 vport->port_type = LPFC_NPIV_PORT;
3089         } else {
3090                 shost->transportt = lpfc_transport_template;
3091                 vport->port_type = LPFC_PHYSICAL_PORT;
3092         }
3093
3094         /* Initialize all internally managed lists. */
3095         INIT_LIST_HEAD(&vport->fc_nodes);
3096         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3097         spin_lock_init(&vport->work_port_lock);
3098
3099         init_timer(&vport->fc_disctmo);
3100         vport->fc_disctmo.function = lpfc_disc_timeout;
3101         vport->fc_disctmo.data = (unsigned long)vport;
3102
3103         init_timer(&vport->fc_fdmitmo);
3104         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3105         vport->fc_fdmitmo.data = (unsigned long)vport;
3106
3107         init_timer(&vport->els_tmofunc);
3108         vport->els_tmofunc.function = lpfc_els_timeout;
3109         vport->els_tmofunc.data = (unsigned long)vport;
3110
3111         init_timer(&vport->delayed_disc_tmo);
3112         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3113         vport->delayed_disc_tmo.data = (unsigned long)vport;
3114
3115         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3116         if (error)
3117                 goto out_put_shost;
3118
3119         spin_lock_irq(&phba->hbalock);
3120         list_add_tail(&vport->listentry, &phba->port_list);
3121         spin_unlock_irq(&phba->hbalock);
3122         return vport;
3123
3124 out_put_shost:
3125         scsi_host_put(shost);
3126 out:
3127         return NULL;
3128 }
3129
3130 /**
3131  * destroy_port -  destroy an FC port
3132  * @vport: pointer to an lpfc virtual N_Port data structure.
3133  *
3134  * This routine destroys a FC port from the upper layer protocol. All the
3135  * resources associated with the port are released.
3136  **/
3137 void
3138 destroy_port(struct lpfc_vport *vport)
3139 {
3140         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3141         struct lpfc_hba  *phba = vport->phba;
3142
3143         lpfc_debugfs_terminate(vport);
3144         fc_remove_host(shost);
3145         scsi_remove_host(shost);
3146
3147         spin_lock_irq(&phba->hbalock);
3148         list_del_init(&vport->listentry);
3149         spin_unlock_irq(&phba->hbalock);
3150
3151         lpfc_cleanup(vport);
3152         return;
3153 }
3154
3155 /**
3156  * lpfc_get_instance - Get a unique integer ID
3157  *
3158  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3159  * uses the kernel idr facility to perform the task.
3160  *
3161  * Return codes:
3162  *   instance - a unique integer ID allocated as the new instance.
3163  *   -1 - lpfc get instance failed.
3164  **/
3165 int
3166 lpfc_get_instance(void)
3167 {
3168         int instance = 0;
3169
3170         /* Assign an unused number */
3171         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
3172                 return -1;
3173         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
3174                 return -1;
3175         return instance;
3176 }
3177
3178 /**
3179  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3180  * @shost: pointer to SCSI host data structure.
3181  * @time: elapsed time of the scan in jiffies.
3182  *
3183  * This routine is called by the SCSI layer with a SCSI host to determine
3184  * whether the scan host is finished.
3185  *
3186  * Note: there is no scan_start function as adapter initialization will have
3187  * asynchronously kicked off the link initialization.
3188  *
3189  * Return codes
3190  *   0 - SCSI host scan is not over yet.
3191  *   1 - SCSI host scan is over.
3192  **/
3193 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3194 {
3195         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3196         struct lpfc_hba   *phba = vport->phba;
3197         int stat = 0;
3198
3199         spin_lock_irq(shost->host_lock);
3200
3201         if (vport->load_flag & FC_UNLOADING) {
3202                 stat = 1;
3203                 goto finished;
3204         }
3205         if (time >= 30 * HZ) {
3206                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3207                                 "0461 Scanning longer than 30 "
3208                                 "seconds.  Continuing initialization\n");
3209                 stat = 1;
3210                 goto finished;
3211         }
3212         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
3213                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3214                                 "0465 Link down longer than 15 "
3215                                 "seconds.  Continuing initialization\n");
3216                 stat = 1;
3217                 goto finished;
3218         }
3219
3220         if (vport->port_state != LPFC_VPORT_READY)
3221                 goto finished;
3222         if (vport->num_disc_nodes || vport->fc_prli_sent)
3223                 goto finished;
3224         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
3225                 goto finished;
3226         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3227                 goto finished;
3228
3229         stat = 1;
3230
3231 finished:
3232         spin_unlock_irq(shost->host_lock);
3233         return stat;
3234 }
3235
3236 /**
3237  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3238  * @shost: pointer to SCSI host data structure.
3239  *
3240  * This routine initializes a given SCSI host attributes on a FC port. The
3241  * SCSI host can be either on top of a physical port or a virtual port.
3242  **/
3243 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3244 {
3245         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3246         struct lpfc_hba   *phba = vport->phba;
3247         /*
3248          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3249          */
3250
3251         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3252         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3253         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3254
3255         memset(fc_host_supported_fc4s(shost), 0,
3256                sizeof(fc_host_supported_fc4s(shost)));
3257         fc_host_supported_fc4s(shost)[2] = 1;
3258         fc_host_supported_fc4s(shost)[7] = 1;
3259
3260         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3261                                  sizeof fc_host_symbolic_name(shost));
3262
3263         fc_host_supported_speeds(shost) = 0;
3264         if (phba->lmt & LMT_16Gb)
3265                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3266         if (phba->lmt & LMT_10Gb)
3267                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3268         if (phba->lmt & LMT_8Gb)
3269                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3270         if (phba->lmt & LMT_4Gb)
3271                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3272         if (phba->lmt & LMT_2Gb)
3273                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3274         if (phba->lmt & LMT_1Gb)
3275                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3276
3277         fc_host_maxframe_size(shost) =
3278                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3279                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3280
3281         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3282
3283         /* This value is also unchanging */
3284         memset(fc_host_active_fc4s(shost), 0,
3285                sizeof(fc_host_active_fc4s(shost)));
3286         fc_host_active_fc4s(shost)[2] = 1;
3287         fc_host_active_fc4s(shost)[7] = 1;
3288
3289         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3290         spin_lock_irq(shost->host_lock);
3291         vport->load_flag &= ~FC_LOADING;
3292         spin_unlock_irq(shost->host_lock);
3293 }
3294
3295 /**
3296  * lpfc_stop_port_s3 - Stop SLI3 device port
3297  * @phba: pointer to lpfc hba data structure.
3298  *
3299  * This routine is invoked to stop an SLI3 device port, it stops the device
3300  * from generating interrupts and stops the device driver's timers for the
3301  * device.
3302  **/
3303 static void
3304 lpfc_stop_port_s3(struct lpfc_hba *phba)
3305 {
3306         /* Clear all interrupt enable conditions */
3307         writel(0, phba->HCregaddr);
3308         readl(phba->HCregaddr); /* flush */
3309         /* Clear all pending interrupts */
3310         writel(0xffffffff, phba->HAregaddr);
3311         readl(phba->HAregaddr); /* flush */
3312
3313         /* Reset some HBA SLI setup states */
3314         lpfc_stop_hba_timers(phba);
3315         phba->pport->work_port_events = 0;
3316 }
3317
3318 /**
3319  * lpfc_stop_port_s4 - Stop SLI4 device port
3320  * @phba: pointer to lpfc hba data structure.
3321  *
3322  * This routine is invoked to stop an SLI4 device port, it stops the device
3323  * from generating interrupts and stops the device driver's timers for the
3324  * device.
3325  **/
3326 static void
3327 lpfc_stop_port_s4(struct lpfc_hba *phba)
3328 {
3329         /* Reset some HBA SLI4 setup states */
3330         lpfc_stop_hba_timers(phba);
3331         phba->pport->work_port_events = 0;
3332         phba->sli4_hba.intr_enable = 0;
3333 }
3334
3335 /**
3336  * lpfc_stop_port - Wrapper function for stopping hba port
3337  * @phba: Pointer to HBA context object.
3338  *
3339  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3340  * the API jump table function pointer from the lpfc_hba struct.
3341  **/
3342 void
3343 lpfc_stop_port(struct lpfc_hba *phba)
3344 {
3345         phba->lpfc_stop_port(phba);
3346 }
3347
3348 /**
3349  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3350  * @phba: Pointer to hba for which this call is being executed.
3351  *
3352  * This routine starts the timer waiting for the FCF rediscovery to complete.
3353  **/
3354 void
3355 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3356 {
3357         unsigned long fcf_redisc_wait_tmo =
3358                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3359         /* Start fcf rediscovery wait period timer */
3360         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3361         spin_lock_irq(&phba->hbalock);
3362         /* Allow action to new fcf asynchronous event */
3363         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3364         /* Mark the FCF rediscovery pending state */
3365         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3366         spin_unlock_irq(&phba->hbalock);
3367 }
3368
3369 /**
3370  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3371  * @ptr: Map to lpfc_hba data structure pointer.
3372  *
3373  * This routine is invoked when waiting for FCF table rediscover has been
3374  * timed out. If new FCF record(s) has (have) been discovered during the
3375  * wait period, a new FCF event shall be added to the FCOE async event
3376  * list, and then worker thread shall be waked up for processing from the
3377  * worker thread context.
3378  **/
3379 void
3380 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3381 {
3382         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3383
3384         /* Don't send FCF rediscovery event if timer cancelled */
3385         spin_lock_irq(&phba->hbalock);
3386         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3387                 spin_unlock_irq(&phba->hbalock);
3388                 return;
3389         }
3390         /* Clear FCF rediscovery timer pending flag */
3391         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3392         /* FCF rediscovery event to worker thread */
3393         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3394         spin_unlock_irq(&phba->hbalock);
3395         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3396                         "2776 FCF rediscover quiescent timer expired\n");
3397         /* wake up worker thread */
3398         lpfc_worker_wake_up(phba);
3399 }
3400
3401 /**
3402  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3403  * @phba: pointer to lpfc hba data structure.
3404  * @acqe_link: pointer to the async link completion queue entry.
3405  *
3406  * This routine is to parse the SLI4 link-attention link fault code and
3407  * translate it into the base driver's read link attention mailbox command
3408  * status.
3409  *
3410  * Return: Link-attention status in terms of base driver's coding.
3411  **/
3412 static uint16_t
3413 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3414                            struct lpfc_acqe_link *acqe_link)
3415 {
3416         uint16_t latt_fault;
3417
3418         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3419         case LPFC_ASYNC_LINK_FAULT_NONE:
3420         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3421         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3422                 latt_fault = 0;
3423                 break;
3424         default:
3425                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3426                                 "0398 Invalid link fault code: x%x\n",
3427                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3428                 latt_fault = MBXERR_ERROR;
3429                 break;
3430         }
3431         return latt_fault;
3432 }
3433
3434 /**
3435  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3436  * @phba: pointer to lpfc hba data structure.
3437  * @acqe_link: pointer to the async link completion queue entry.
3438  *
3439  * This routine is to parse the SLI4 link attention type and translate it
3440  * into the base driver's link attention type coding.
3441  *
3442  * Return: Link attention type in terms of base driver's coding.
3443  **/
3444 static uint8_t
3445 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3446                           struct lpfc_acqe_link *acqe_link)
3447 {
3448         uint8_t att_type;
3449
3450         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3451         case LPFC_ASYNC_LINK_STATUS_DOWN:
3452         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3453                 att_type = LPFC_ATT_LINK_DOWN;
3454                 break;
3455         case LPFC_ASYNC_LINK_STATUS_UP:
3456                 /* Ignore physical link up events - wait for logical link up */
3457                 att_type = LPFC_ATT_RESERVED;
3458                 break;
3459         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3460                 att_type = LPFC_ATT_LINK_UP;
3461                 break;
3462         default:
3463                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3464                                 "0399 Invalid link attention type: x%x\n",
3465                                 bf_get(lpfc_acqe_link_status, acqe_link));
3466                 att_type = LPFC_ATT_RESERVED;
3467                 break;
3468         }
3469         return att_type;
3470 }
3471
3472 /**
3473  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3474  * @phba: pointer to lpfc hba data structure.
3475  * @acqe_link: pointer to the async link completion queue entry.
3476  *
3477  * This routine is to parse the SLI4 link-attention link speed and translate
3478  * it into the base driver's link-attention link speed coding.
3479  *
3480  * Return: Link-attention link speed in terms of base driver's coding.
3481  **/
3482 static uint8_t
3483 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3484                                 struct lpfc_acqe_link *acqe_link)
3485 {
3486         uint8_t link_speed;
3487
3488         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3489         case LPFC_ASYNC_LINK_SPEED_ZERO:
3490         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3491         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3492                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3493                 break;
3494         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3495                 link_speed = LPFC_LINK_SPEED_1GHZ;
3496                 break;
3497         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3498                 link_speed = LPFC_LINK_SPEED_10GHZ;
3499                 break;
3500         default:
3501                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3502                                 "0483 Invalid link-attention link speed: x%x\n",
3503                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3504                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3505                 break;
3506         }
3507         return link_speed;
3508 }
3509
3510 /**
3511  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3512  * @phba: pointer to lpfc hba data structure.
3513  *
3514  * This routine is to get an SLI3 FC port's link speed in Mbps.
3515  *
3516  * Return: link speed in terms of Mbps.
3517  **/
3518 uint32_t
3519 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3520 {
3521         uint32_t link_speed;
3522
3523         if (!lpfc_is_link_up(phba))
3524                 return 0;
3525
3526         switch (phba->fc_linkspeed) {
3527         case LPFC_LINK_SPEED_1GHZ:
3528                 link_speed = 1000;
3529                 break;
3530         case LPFC_LINK_SPEED_2GHZ:
3531                 link_speed = 2000;
3532                 break;
3533         case LPFC_LINK_SPEED_4GHZ:
3534                 link_speed = 4000;
3535                 break;
3536         case LPFC_LINK_SPEED_8GHZ:
3537                 link_speed = 8000;
3538                 break;
3539         case LPFC_LINK_SPEED_10GHZ:
3540                 link_speed = 10000;
3541                 break;
3542         case LPFC_LINK_SPEED_16GHZ:
3543                 link_speed = 16000;
3544                 break;
3545         default:
3546                 link_speed = 0;
3547         }
3548         return link_speed;
3549 }
3550
3551 /**
3552  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3553  * @phba: pointer to lpfc hba data structure.
3554  * @evt_code: asynchronous event code.
3555  * @speed_code: asynchronous event link speed code.
3556  *
3557  * This routine is to parse the giving SLI4 async event link speed code into
3558  * value of Mbps for the link speed.
3559  *
3560  * Return: link speed in terms of Mbps.
3561  **/
3562 static uint32_t
3563 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3564                            uint8_t speed_code)
3565 {
3566         uint32_t port_speed;
3567
3568         switch (evt_code) {
3569         case LPFC_TRAILER_CODE_LINK:
3570                 switch (speed_code) {
3571                 case LPFC_EVT_CODE_LINK_NO_LINK:
3572                         port_speed = 0;
3573                         break;
3574                 case LPFC_EVT_CODE_LINK_10_MBIT:
3575                         port_speed = 10;
3576                         break;
3577                 case LPFC_EVT_CODE_LINK_100_MBIT:
3578                         port_speed = 100;
3579                         break;
3580                 case LPFC_EVT_CODE_LINK_1_GBIT:
3581                         port_speed = 1000;
3582                         break;
3583                 case LPFC_EVT_CODE_LINK_10_GBIT:
3584                         port_speed = 10000;
3585                         break;
3586                 default:
3587                         port_speed = 0;
3588                 }
3589                 break;
3590         case LPFC_TRAILER_CODE_FC:
3591                 switch (speed_code) {
3592                 case LPFC_EVT_CODE_FC_NO_LINK:
3593                         port_speed = 0;
3594                         break;
3595                 case LPFC_EVT_CODE_FC_1_GBAUD:
3596                         port_speed = 1000;
3597                         break;
3598                 case LPFC_EVT_CODE_FC_2_GBAUD:
3599                         port_speed = 2000;
3600                         break;
3601                 case LPFC_EVT_CODE_FC_4_GBAUD:
3602                         port_speed = 4000;
3603                         break;
3604                 case LPFC_EVT_CODE_FC_8_GBAUD:
3605                         port_speed = 8000;
3606                         break;
3607                 case LPFC_EVT_CODE_FC_10_GBAUD:
3608                         port_speed = 10000;
3609                         break;
3610                 case LPFC_EVT_CODE_FC_16_GBAUD:
3611                         port_speed = 16000;
3612                         break;
3613                 default:
3614                         port_speed = 0;
3615                 }
3616                 break;
3617         default:
3618                 port_speed = 0;
3619         }
3620         return port_speed;
3621 }
3622
3623 /**
3624  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3625  * @phba: pointer to lpfc hba data structure.
3626  * @acqe_link: pointer to the async link completion queue entry.
3627  *
3628  * This routine is to handle the SLI4 asynchronous FCoE link event.
3629  **/
3630 static void
3631 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3632                          struct lpfc_acqe_link *acqe_link)
3633 {
3634         struct lpfc_dmabuf *mp;
3635         LPFC_MBOXQ_t *pmb;
3636         MAILBOX_t *mb;
3637         struct lpfc_mbx_read_top *la;
3638         uint8_t att_type;
3639         int rc;
3640
3641         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3642         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3643                 return;
3644         phba->fcoe_eventtag = acqe_link->event_tag;
3645         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3646         if (!pmb) {
3647                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3648                                 "0395 The mboxq allocation failed\n");
3649                 return;
3650         }
3651         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3652         if (!mp) {
3653                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3654                                 "0396 The lpfc_dmabuf allocation failed\n");
3655                 goto out_free_pmb;
3656         }
3657         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3658         if (!mp->virt) {
3659                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3660                                 "0397 The mbuf allocation failed\n");
3661                 goto out_free_dmabuf;
3662         }
3663
3664         /* Cleanup any outstanding ELS commands */
3665         lpfc_els_flush_all_cmd(phba);
3666
3667         /* Block ELS IOCBs until we have done process link event */
3668         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3669
3670         /* Update link event statistics */
3671         phba->sli.slistat.link_event++;
3672
3673         /* Create lpfc_handle_latt mailbox command from link ACQE */
3674         lpfc_read_topology(phba, pmb, mp);
3675         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3676         pmb->vport = phba->pport;
3677
3678         /* Keep the link status for extra SLI4 state machine reference */
3679         phba->sli4_hba.link_state.speed =
3680                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3681                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3682         phba->sli4_hba.link_state.duplex =
3683                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3684         phba->sli4_hba.link_state.status =
3685                                 bf_get(lpfc_acqe_link_status, acqe_link);
3686         phba->sli4_hba.link_state.type =
3687                                 bf_get(lpfc_acqe_link_type, acqe_link);
3688         phba->sli4_hba.link_state.number =
3689                                 bf_get(lpfc_acqe_link_number, acqe_link);
3690         phba->sli4_hba.link_state.fault =
3691                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3692         phba->sli4_hba.link_state.logical_speed =
3693                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3694
3695         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3696                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3697                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3698                         "Logical speed:%dMbps Fault:%d\n",
3699                         phba->sli4_hba.link_state.speed,
3700                         phba->sli4_hba.link_state.topology,
3701                         phba->sli4_hba.link_state.status,
3702                         phba->sli4_hba.link_state.type,
3703                         phba->sli4_hba.link_state.number,
3704                         phba->sli4_hba.link_state.logical_speed,
3705                         phba->sli4_hba.link_state.fault);
3706         /*
3707          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3708          * topology info. Note: Optional for non FC-AL ports.
3709          */
3710         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3711                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3712                 if (rc == MBX_NOT_FINISHED)
3713                         goto out_free_dmabuf;
3714                 return;
3715         }
3716         /*
3717          * For FCoE Mode: fill in all the topology information we need and call
3718          * the READ_TOPOLOGY completion routine to continue without actually
3719          * sending the READ_TOPOLOGY mailbox command to the port.
3720          */
3721         /* Parse and translate status field */
3722         mb = &pmb->u.mb;
3723         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3724
3725         /* Parse and translate link attention fields */
3726         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3727         la->eventTag = acqe_link->event_tag;
3728         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3729         bf_set(lpfc_mbx_read_top_link_spd, la,
3730                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3731
3732         /* Fake the the following irrelvant fields */
3733         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3734         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3735         bf_set(lpfc_mbx_read_top_il, la, 0);
3736         bf_set(lpfc_mbx_read_top_pb, la, 0);
3737         bf_set(lpfc_mbx_read_top_fa, la, 0);
3738         bf_set(lpfc_mbx_read_top_mm, la, 0);
3739
3740         /* Invoke the lpfc_handle_latt mailbox command callback function */
3741         lpfc_mbx_cmpl_read_topology(phba, pmb);
3742
3743         return;
3744
3745 out_free_dmabuf:
3746         kfree(mp);
3747 out_free_pmb:
3748         mempool_free(pmb, phba->mbox_mem_pool);
3749 }
3750
3751 /**
3752  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3753  * @phba: pointer to lpfc hba data structure.
3754  * @acqe_fc: pointer to the async fc completion queue entry.
3755  *
3756  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3757  * that the event was received and then issue a read_topology mailbox command so
3758  * that the rest of the driver will treat it the same as SLI3.
3759  **/
3760 static void
3761 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3762 {
3763         struct lpfc_dmabuf *mp;
3764         LPFC_MBOXQ_t *pmb;
3765         int rc;
3766
3767         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3768             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3769                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3770                                 "2895 Non FC link Event detected.(%d)\n",
3771                                 bf_get(lpfc_trailer_type, acqe_fc));
3772                 return;
3773         }
3774         /* Keep the link status for extra SLI4 state machine reference */
3775         phba->sli4_hba.link_state.speed =
3776                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
3777                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
3778         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3779         phba->sli4_hba.link_state.topology =
3780                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3781         phba->sli4_hba.link_state.status =
3782                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3783         phba->sli4_hba.link_state.type =
3784                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3785         phba->sli4_hba.link_state.number =
3786                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3787         phba->sli4_hba.link_state.fault =
3788                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3789         phba->sli4_hba.link_state.logical_speed =
3790                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
3791         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3792                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3793                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3794                         "%dMbps Fault:%d\n",
3795                         phba->sli4_hba.link_state.speed,
3796                         phba->sli4_hba.link_state.topology,
3797                         phba->sli4_hba.link_state.status,
3798                         phba->sli4_hba.link_state.type,
3799                         phba->sli4_hba.link_state.number,
3800                         phba->sli4_hba.link_state.logical_speed,
3801                         phba->sli4_hba.link_state.fault);
3802         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3803         if (!pmb) {
3804                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3805                                 "2897 The mboxq allocation failed\n");
3806                 return;
3807         }
3808         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3809         if (!mp) {
3810                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3811                                 "2898 The lpfc_dmabuf allocation failed\n");
3812                 goto out_free_pmb;
3813         }
3814         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3815         if (!mp->virt) {
3816                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3817                                 "2899 The mbuf allocation failed\n");
3818                 goto out_free_dmabuf;
3819         }
3820
3821         /* Cleanup any outstanding ELS commands */
3822         lpfc_els_flush_all_cmd(phba);
3823
3824         /* Block ELS IOCBs until we have done process link event */
3825         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3826
3827         /* Update link event statistics */
3828         phba->sli.slistat.link_event++;
3829
3830         /* Create lpfc_handle_latt mailbox command from link ACQE */
3831         lpfc_read_topology(phba, pmb, mp);
3832         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3833         pmb->vport = phba->pport;
3834
3835         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3836         if (rc == MBX_NOT_FINISHED)
3837                 goto out_free_dmabuf;
3838         return;
3839
3840 out_free_dmabuf:
3841         kfree(mp);
3842 out_free_pmb:
3843         mempool_free(pmb, phba->mbox_mem_pool);
3844 }
3845
3846 /**
3847  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3848  * @phba: pointer to lpfc hba data structure.
3849  * @acqe_fc: pointer to the async SLI completion queue entry.
3850  *
3851  * This routine is to handle the SLI4 asynchronous SLI events.
3852  **/
3853 static void
3854 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3855 {
3856         char port_name;
3857         char message[128];
3858         uint8_t status;
3859         struct lpfc_acqe_misconfigured_event *misconfigured;
3860
3861         /* special case misconfigured event as it contains data for all ports */
3862         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3863                  LPFC_SLI_INTF_IF_TYPE_2) ||
3864                 (bf_get(lpfc_trailer_type, acqe_sli) !=
3865                         LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
3866                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3867                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3868                                 "x%08x SLI Event Type:%d\n",
3869                                 acqe_sli->event_data1, acqe_sli->event_data2,
3870                                 bf_get(lpfc_trailer_type, acqe_sli));
3871                 return;
3872         }
3873
3874         port_name = phba->Port[0];
3875         if (port_name == 0x00)
3876                 port_name = '?'; /* get port name is empty */
3877
3878         misconfigured = (struct lpfc_acqe_misconfigured_event *)
3879                                         &acqe_sli->event_data1;
3880
3881         /* fetch the status for this port */
3882         switch (phba->sli4_hba.lnk_info.lnk_no) {
3883         case LPFC_LINK_NUMBER_0:
3884                 status = bf_get(lpfc_sli_misconfigured_port0,
3885                                         &misconfigured->theEvent);
3886                 break;
3887         case LPFC_LINK_NUMBER_1:
3888                 status = bf_get(lpfc_sli_misconfigured_port1,
3889                                         &misconfigured->theEvent);
3890                 break;
3891         case LPFC_LINK_NUMBER_2:
3892                 status = bf_get(lpfc_sli_misconfigured_port2,
3893                                         &misconfigured->theEvent);
3894                 break;
3895         case LPFC_LINK_NUMBER_3:
3896                 status = bf_get(lpfc_sli_misconfigured_port3,
3897                                         &misconfigured->theEvent);
3898                 break;
3899         default:
3900                 status = ~LPFC_SLI_EVENT_STATUS_VALID;
3901                 break;
3902         }
3903
3904         switch (status) {
3905         case LPFC_SLI_EVENT_STATUS_VALID:
3906                 return; /* no message if the sfp is okay */
3907         case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
3908                 sprintf(message, "Optics faulted/incorrectly installed/not " \
3909                                 "installed - Reseat optics, if issue not "
3910                                 "resolved, replace.");
3911                 break;
3912         case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
3913                 sprintf(message,
3914                         "Optics of two types installed - Remove one optic or " \
3915                         "install matching pair of optics.");
3916                 break;
3917         case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
3918                 sprintf(message, "Incompatible optics - Replace with " \
3919                                 "compatible optics for card to function.");
3920                 break;
3921         default:
3922                 /* firmware is reporting a status we don't know about */
3923                 sprintf(message, "Unknown event status x%02x", status);
3924                 break;
3925         }
3926
3927         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3928                         "3176 Misconfigured Physical Port - "
3929                         "Port Name %c %s\n", port_name, message);
3930 }
3931
3932 /**
3933  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3934  * @vport: pointer to vport data structure.
3935  *
3936  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3937  * response to a CVL event.
3938  *
3939  * Return the pointer to the ndlp with the vport if successful, otherwise
3940  * return NULL.
3941  **/
3942 static struct lpfc_nodelist *
3943 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3944 {
3945         struct lpfc_nodelist *ndlp;
3946         struct Scsi_Host *shost;
3947         struct lpfc_hba *phba;
3948
3949         if (!vport)
3950                 return NULL;
3951         phba = vport->phba;
3952         if (!phba)
3953                 return NULL;
3954         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3955         if (!ndlp) {
3956                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3957                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3958                 if (!ndlp)
3959                         return 0;
3960                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3961                 /* Set the node type */
3962                 ndlp->nlp_type |= NLP_FABRIC;
3963                 /* Put ndlp onto node list */
3964                 lpfc_enqueue_node(vport, ndlp);
3965         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3966                 /* re-setup ndlp without removing from node list */
3967                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3968                 if (!ndlp)
3969                         return 0;
3970         }
3971         if ((phba->pport->port_state < LPFC_FLOGI) &&
3972                 (phba->pport->port_state != LPFC_VPORT_FAILED))
3973                 return NULL;
3974         /* If virtual link is not yet instantiated ignore CVL */
3975         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3976                 && (vport->port_state != LPFC_VPORT_FAILED))
3977                 return NULL;
3978         shost = lpfc_shost_from_vport(vport);
3979         if (!shost)
3980                 return NULL;
3981         lpfc_linkdown_port(vport);
3982         lpfc_cleanup_pending_mbox(vport);
3983         spin_lock_irq(shost->host_lock);
3984         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3985         spin_unlock_irq(shost->host_lock);
3986
3987         return ndlp;
3988 }
3989
3990 /**
3991  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3992  * @vport: pointer to lpfc hba data structure.
3993  *
3994  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3995  * response to a FCF dead event.
3996  **/
3997 static void
3998 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3999 {
4000         struct lpfc_vport **vports;
4001         int i;
4002
4003         vports = lpfc_create_vport_work_array(phba);
4004         if (vports)
4005                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4006                         lpfc_sli4_perform_vport_cvl(vports[i]);
4007         lpfc_destroy_vport_work_array(phba, vports);
4008 }
4009
4010 /**
4011  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4012  * @phba: pointer to lpfc hba data structure.
4013  * @acqe_link: pointer to the async fcoe completion queue entry.
4014  *
4015  * This routine is to handle the SLI4 asynchronous fcoe event.
4016  **/
4017 static void
4018 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4019                         struct lpfc_acqe_fip *acqe_fip)
4020 {
4021         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4022         int rc;
4023         struct lpfc_vport *vport;
4024         struct lpfc_nodelist *ndlp;
4025         struct Scsi_Host  *shost;
4026         int active_vlink_present;
4027         struct lpfc_vport **vports;
4028         int i;
4029
4030         phba->fc_eventTag = acqe_fip->event_tag;
4031         phba->fcoe_eventtag = acqe_fip->event_tag;
4032         switch (event_type) {
4033         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4034         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4035                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4036                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4037                                         LOG_DISCOVERY,
4038                                         "2546 New FCF event, evt_tag:x%x, "
4039                                         "index:x%x\n",
4040                                         acqe_fip->event_tag,
4041                                         acqe_fip->index);
4042                 else
4043                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4044                                         LOG_DISCOVERY,
4045                                         "2788 FCF param modified event, "
4046                                         "evt_tag:x%x, index:x%x\n",
4047                                         acqe_fip->event_tag,
4048                                         acqe_fip->index);
4049                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4050                         /*
4051                          * During period of FCF discovery, read the FCF
4052                          * table record indexed by the event to update
4053                          * FCF roundrobin failover eligible FCF bmask.
4054                          */
4055                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4056                                         LOG_DISCOVERY,
4057                                         "2779 Read FCF (x%x) for updating "
4058                                         "roundrobin FCF failover bmask\n",
4059                                         acqe_fip->index);
4060                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4061                 }
4062
4063                 /* If the FCF discovery is in progress, do nothing. */
4064                 spin_lock_irq(&phba->hbalock);
4065                 if (phba->hba_flag & FCF_TS_INPROG) {
4066                         spin_unlock_irq(&phba->hbalock);
4067                         break;
4068                 }
4069                 /* If fast FCF failover rescan event is pending, do nothing */
4070                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4071                         spin_unlock_irq(&phba->hbalock);
4072                         break;
4073                 }
4074
4075                 /* If the FCF has been in discovered state, do nothing. */
4076                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4077                         spin_unlock_irq(&phba->hbalock);
4078                         break;
4079                 }
4080                 spin_unlock_irq(&phba->hbalock);
4081
4082                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4083                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4084                                 "2770 Start FCF table scan per async FCF "
4085                                 "event, evt_tag:x%x, index:x%x\n",
4086                                 acqe_fip->event_tag, acqe_fip->index);
4087                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4088                                                      LPFC_FCOE_FCF_GET_FIRST);
4089                 if (rc)
4090                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4091                                         "2547 Issue FCF scan read FCF mailbox "
4092                                         "command failed (x%x)\n", rc);
4093                 break;
4094
4095         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4096                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4097                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4098                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4099                         acqe_fip->event_tag);
4100                 break;
4101
4102         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4103                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4104                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4105                         "2549 FCF (x%x) disconnected from network, "
4106                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4107                 /*
4108                  * If we are in the middle of FCF failover process, clear
4109                  * the corresponding FCF bit in the roundrobin bitmap.
4110                  */
4111                 spin_lock_irq(&phba->hbalock);
4112                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4113                         spin_unlock_irq(&phba->hbalock);
4114                         /* Update FLOGI FCF failover eligible FCF bmask */
4115                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4116                         break;
4117                 }
4118                 spin_unlock_irq(&phba->hbalock);
4119
4120                 /* If the event is not for currently used fcf do nothing */
4121                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4122                         break;
4123
4124                 /*
4125                  * Otherwise, request the port to rediscover the entire FCF
4126                  * table for a fast recovery from case that the current FCF
4127                  * is no longer valid as we are not in the middle of FCF
4128                  * failover process already.
4129                  */
4130                 spin_lock_irq(&phba->hbalock);
4131                 /* Mark the fast failover process in progress */
4132                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4133                 spin_unlock_irq(&phba->hbalock);
4134
4135                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4136                                 "2771 Start FCF fast failover process due to "
4137                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4138                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4139                 rc = lpfc_sli4_redisc_fcf_table(phba);
4140                 if (rc) {
4141                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4142                                         LOG_DISCOVERY,
4143                                         "2772 Issue FCF rediscover mabilbox "
4144                                         "command failed, fail through to FCF "
4145                                         "dead event\n");
4146                         spin_lock_irq(&phba->hbalock);
4147                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4148                         spin_unlock_irq(&phba->hbalock);
4149                         /*
4150                          * Last resort will fail over by treating this
4151                          * as a link down to FCF registration.
4152                          */
4153                         lpfc_sli4_fcf_dead_failthrough(phba);
4154                 } else {
4155                         /* Reset FCF roundrobin bmask for new discovery */
4156                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4157                         /*
4158                          * Handling fast FCF failover to a DEAD FCF event is
4159                          * considered equalivant to receiving CVL to all vports.
4160                          */
4161                         lpfc_sli4_perform_all_vport_cvl(phba);
4162                 }
4163                 break;
4164         case LPFC_FIP_EVENT_TYPE_CVL:
4165                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4166                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4167                         "2718 Clear Virtual Link Received for VPI 0x%x"
4168                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4169
4170                 vport = lpfc_find_vport_by_vpid(phba,
4171                                                 acqe_fip->index);
4172                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4173                 if (!ndlp)
4174                         break;
4175                 active_vlink_present = 0;
4176
4177                 vports = lpfc_create_vport_work_array(phba);
4178                 if (vports) {
4179                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4180                                         i++) {
4181                                 if ((!(vports[i]->fc_flag &
4182                                         FC_VPORT_CVL_RCVD)) &&
4183                                         (vports[i]->port_state > LPFC_FDISC)) {
4184                                         active_vlink_present = 1;
4185                                         break;
4186                                 }
4187                         }
4188                         lpfc_destroy_vport_work_array(phba, vports);
4189                 }
4190
4191                 if (active_vlink_present) {
4192                         /*
4193                          * If there are other active VLinks present,
4194                          * re-instantiate the Vlink using FDISC.
4195                          */
4196                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
4197                         shost = lpfc_shost_from_vport(vport);
4198                         spin_lock_irq(shost->host_lock);
4199                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4200                         spin_unlock_irq(shost->host_lock);
4201                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4202                         vport->port_state = LPFC_FDISC;
4203                 } else {
4204                         /*
4205                          * Otherwise, we request port to rediscover
4206                          * the entire FCF table for a fast recovery
4207                          * from possible case that the current FCF
4208                          * is no longer valid if we are not already
4209                          * in the FCF failover process.
4210                          */
4211                         spin_lock_irq(&phba->hbalock);
4212                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4213                                 spin_unlock_irq(&phba->hbalock);
4214                                 break;
4215                         }
4216                         /* Mark the fast failover process in progress */
4217                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4218                         spin_unlock_irq(&phba->hbalock);
4219                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4220                                         LOG_DISCOVERY,
4221                                         "2773 Start FCF failover per CVL, "
4222                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4223                         rc = lpfc_sli4_redisc_fcf_table(phba);
4224                         if (rc) {
4225                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4226                                                 LOG_DISCOVERY,
4227                                                 "2774 Issue FCF rediscover "
4228                                                 "mabilbox command failed, "
4229                                                 "through to CVL event\n");
4230                                 spin_lock_irq(&phba->hbalock);
4231                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4232                                 spin_unlock_irq(&phba->hbalock);
4233                                 /*
4234                                  * Last resort will be re-try on the
4235                                  * the current registered FCF entry.
4236                                  */
4237                                 lpfc_retry_pport_discovery(phba);
4238                         } else
4239                                 /*
4240                                  * Reset FCF roundrobin bmask for new
4241                                  * discovery.
4242                                  */
4243                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4244                 }
4245                 break;
4246         default:
4247                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4248                         "0288 Unknown FCoE event type 0x%x event tag "
4249                         "0x%x\n", event_type, acqe_fip->event_tag);
4250                 break;
4251         }
4252 }
4253
4254 /**
4255  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4256  * @phba: pointer to lpfc hba data structure.
4257  * @acqe_link: pointer to the async dcbx completion queue entry.
4258  *
4259  * This routine is to handle the SLI4 asynchronous dcbx event.
4260  **/
4261 static void
4262 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4263                          struct lpfc_acqe_dcbx *acqe_dcbx)
4264 {
4265         phba->fc_eventTag = acqe_dcbx->event_tag;
4266         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4267                         "0290 The SLI4 DCBX asynchronous event is not "
4268                         "handled yet\n");
4269 }
4270
4271 /**
4272  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4273  * @phba: pointer to lpfc hba data structure.
4274  * @acqe_link: pointer to the async grp5 completion queue entry.
4275  *
4276  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4277  * is an asynchronous notified of a logical link speed change.  The Port
4278  * reports the logical link speed in units of 10Mbps.
4279  **/
4280 static void
4281 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4282                          struct lpfc_acqe_grp5 *acqe_grp5)
4283 {
4284         uint16_t prev_ll_spd;
4285
4286         phba->fc_eventTag = acqe_grp5->event_tag;
4287         phba->fcoe_eventtag = acqe_grp5->event_tag;
4288         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4289         phba->sli4_hba.link_state.logical_speed =
4290                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4291         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4292                         "2789 GRP5 Async Event: Updating logical link speed "
4293                         "from %dMbps to %dMbps\n", prev_ll_spd,
4294                         phba->sli4_hba.link_state.logical_speed);
4295 }
4296
4297 /**
4298  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4299  * @phba: pointer to lpfc hba data structure.
4300  *
4301  * This routine is invoked by the worker thread to process all the pending
4302  * SLI4 asynchronous events.
4303  **/
4304 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4305 {
4306         struct lpfc_cq_event *cq_event;
4307
4308         /* First, declare the async event has been handled */
4309         spin_lock_irq(&phba->hbalock);
4310         phba->hba_flag &= ~ASYNC_EVENT;
4311         spin_unlock_irq(&phba->hbalock);
4312         /* Now, handle all the async events */
4313         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4314                 /* Get the first event from the head of the event queue */
4315                 spin_lock_irq(&phba->hbalock);
4316                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4317                                  cq_event, struct lpfc_cq_event, list);
4318                 spin_unlock_irq(&phba->hbalock);
4319                 /* Process the asynchronous event */
4320                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4321                 case LPFC_TRAILER_CODE_LINK:
4322                         lpfc_sli4_async_link_evt(phba,
4323                                                  &cq_event->cqe.acqe_link);
4324                         break;
4325                 case LPFC_TRAILER_CODE_FCOE:
4326                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4327                         break;
4328                 case LPFC_TRAILER_CODE_DCBX:
4329                         lpfc_sli4_async_dcbx_evt(phba,
4330                                                  &cq_event->cqe.acqe_dcbx);
4331                         break;
4332                 case LPFC_TRAILER_CODE_GRP5:
4333                         lpfc_sli4_async_grp5_evt(phba,
4334                                                  &cq_event->cqe.acqe_grp5);
4335                         break;
4336                 case LPFC_TRAILER_CODE_FC:
4337                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4338                         break;
4339                 case LPFC_TRAILER_CODE_SLI:
4340                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4341                         break;
4342                 default:
4343                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4344                                         "1804 Invalid asynchrous event code: "
4345                                         "x%x\n", bf_get(lpfc_trailer_code,
4346                                         &cq_event->cqe.mcqe_cmpl));
4347                         break;
4348                 }
4349                 /* Free the completion event processed to the free pool */
4350                 lpfc_sli4_cq_event_release(phba, cq_event);
4351         }
4352 }
4353
4354 /**
4355  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4356  * @phba: pointer to lpfc hba data structure.
4357  *
4358  * This routine is invoked by the worker thread to process FCF table
4359  * rediscovery pending completion event.
4360  **/
4361 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4362 {
4363         int rc;
4364
4365         spin_lock_irq(&phba->hbalock);
4366         /* Clear FCF rediscovery timeout event */
4367         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4368         /* Clear driver fast failover FCF record flag */
4369         phba->fcf.failover_rec.flag = 0;
4370         /* Set state for FCF fast failover */
4371         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4372         spin_unlock_irq(&phba->hbalock);
4373
4374         /* Scan FCF table from the first entry to re-discover SAN */
4375         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4376                         "2777 Start post-quiescent FCF table scan\n");
4377         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4378         if (rc)
4379                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4380                                 "2747 Issue FCF scan read FCF mailbox "
4381                                 "command failed 0x%x\n", rc);
4382 }
4383
4384 /**
4385  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4386  * @phba: pointer to lpfc hba data structure.
4387  * @dev_grp: The HBA PCI-Device group number.
4388  *
4389  * This routine is invoked to set up the per HBA PCI-Device group function
4390  * API jump table entries.
4391  *
4392  * Return: 0 if success, otherwise -ENODEV
4393  **/
4394 int
4395 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4396 {
4397         int rc;
4398
4399         /* Set up lpfc PCI-device group */
4400         phba->pci_dev_grp = dev_grp;
4401
4402         /* The LPFC_PCI_DEV_OC uses SLI4 */
4403         if (dev_grp == LPFC_PCI_DEV_OC)
4404                 phba->sli_rev = LPFC_SLI_REV4;
4405
4406         /* Set up device INIT API function jump table */
4407         rc = lpfc_init_api_table_setup(phba, dev_grp);
4408         if (rc)
4409                 return -ENODEV;
4410         /* Set up SCSI API function jump table */
4411         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4412         if (rc)
4413                 return -ENODEV;
4414         /* Set up SLI API function jump table */
4415         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4416         if (rc)
4417                 return -ENODEV;
4418         /* Set up MBOX API function jump table */
4419         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4420         if (rc)
4421                 return -ENODEV;
4422
4423         return 0;
4424 }
4425
4426 /**
4427  * lpfc_log_intr_mode - Log the active interrupt mode
4428  * @phba: pointer to lpfc hba data structure.
4429  * @intr_mode: active interrupt mode adopted.
4430  *
4431  * This routine it invoked to log the currently used active interrupt mode
4432  * to the device.
4433  **/
4434 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4435 {
4436         switch (intr_mode) {
4437         case 0:
4438                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4439                                 "0470 Enable INTx interrupt mode.\n");
4440                 break;
4441         case 1:
4442                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4443                                 "0481 Enabled MSI interrupt mode.\n");
4444                 break;
4445         case 2:
4446                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4447                                 "0480 Enabled MSI-X interrupt mode.\n");
4448                 break;
4449         default:
4450                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4451                                 "0482 Illegal interrupt mode.\n");
4452                 break;
4453         }
4454         return;
4455 }
4456
4457 /**
4458  * lpfc_enable_pci_dev - Enable a generic PCI device.
4459  * @phba: pointer to lpfc hba data structure.
4460  *
4461  * This routine is invoked to enable the PCI device that is common to all
4462  * PCI devices.
4463  *
4464  * Return codes
4465  *      0 - successful
4466  *      other values - error
4467  **/
4468 static int
4469 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4470 {
4471         struct pci_dev *pdev;
4472         int bars = 0;
4473
4474         /* Obtain PCI device reference */
4475         if (!phba->pcidev)
4476                 goto out_error;
4477         else
4478                 pdev = phba->pcidev;
4479         /* Select PCI BARs */
4480         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4481         /* Enable PCI device */
4482         if (pci_enable_device_mem(pdev))
4483                 goto out_error;
4484         /* Request PCI resource for the device */
4485         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4486                 goto out_disable_device;
4487         /* Set up device as PCI master and save state for EEH */
4488         pci_set_master(pdev);
4489         pci_try_set_mwi(pdev);
4490         pci_save_state(pdev);
4491
4492         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4493         if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
4494                 pdev->needs_freset = 1;
4495
4496         return 0;
4497
4498 out_disable_device:
4499         pci_disable_device(pdev);
4500 out_error:
4501         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4502                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4503         return -ENODEV;
4504 }
4505
4506 /**
4507  * lpfc_disable_pci_dev - Disable a generic PCI device.
4508  * @phba: pointer to lpfc hba data structure.
4509  *
4510  * This routine is invoked to disable the PCI device that is common to all
4511  * PCI devices.
4512  **/
4513 static void
4514 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4515 {
4516         struct pci_dev *pdev;
4517         int bars;
4518
4519         /* Obtain PCI device reference */
4520         if (!phba->pcidev)
4521                 return;
4522         else
4523                 pdev = phba->pcidev;
4524         /* Select PCI BARs */
4525         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4526         /* Release PCI resource and disable PCI device */
4527         pci_release_selected_regions(pdev, bars);
4528         pci_disable_device(pdev);
4529         /* Null out PCI private reference to driver */
4530         pci_set_drvdata(pdev, NULL);
4531
4532         return;
4533 }
4534
4535 /**
4536  * lpfc_reset_hba - Reset a hba
4537  * @phba: pointer to lpfc hba data structure.
4538  *
4539  * This routine is invoked to reset a hba device. It brings the HBA
4540  * offline, performs a board restart, and then brings the board back
4541  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4542  * on outstanding mailbox commands.
4543  **/
4544 void
4545 lpfc_reset_hba(struct lpfc_hba *phba)
4546 {
4547         /* If resets are disabled then set error state and return. */
4548         if (!phba->cfg_enable_hba_reset) {
4549                 phba->link_state = LPFC_HBA_ERROR;
4550                 return;
4551         }
4552         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4553         lpfc_offline(phba);
4554         lpfc_sli_brdrestart(phba);
4555         lpfc_online(phba);
4556         lpfc_unblock_mgmt_io(phba);
4557 }
4558
4559 /**
4560  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4561  * @phba: pointer to lpfc hba data structure.
4562  *
4563  * This function enables the PCI SR-IOV virtual functions to a physical
4564  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4565  * enable the number of virtual functions to the physical function. As
4566  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4567  * API call does not considered as an error condition for most of the device.
4568  **/
4569 uint16_t
4570 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4571 {
4572         struct pci_dev *pdev = phba->pcidev;
4573         uint16_t nr_virtfn;
4574         int pos;
4575
4576         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4577         if (pos == 0)
4578                 return 0;
4579
4580         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4581         return nr_virtfn;
4582 }
4583
4584 /**
4585  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4586  * @phba: pointer to lpfc hba data structure.
4587  * @nr_vfn: number of virtual functions to be enabled.
4588  *
4589  * This function enables the PCI SR-IOV virtual functions to a physical
4590  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4591  * enable the number of virtual functions to the physical function. As
4592  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4593  * API call does not considered as an error condition for most of the device.
4594  **/
4595 int
4596 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4597 {
4598         struct pci_dev *pdev = phba->pcidev;
4599         uint16_t max_nr_vfn;
4600         int rc;
4601
4602         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4603         if (nr_vfn > max_nr_vfn) {
4604                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4605                                 "3057 Requested vfs (%d) greater than "
4606                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4607                 return -EINVAL;
4608         }
4609
4610         rc = pci_enable_sriov(pdev, nr_vfn);
4611         if (rc) {
4612                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4613                                 "2806 Failed to enable sriov on this device "
4614                                 "with vfn number nr_vf:%d, rc:%d\n",
4615                                 nr_vfn, rc);
4616         } else
4617                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4618                                 "2807 Successful enable sriov on this device "
4619                                 "with vfn number nr_vf:%d\n", nr_vfn);
4620         return rc;
4621 }
4622
4623 /**
4624  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4625  * @phba: pointer to lpfc hba data structure.
4626  *
4627  * This routine is invoked to set up the driver internal resources specific to
4628  * support the SLI-3 HBA device it attached to.
4629  *
4630  * Return codes
4631  *      0 - successful
4632  *      other values - error
4633  **/
4634 static int
4635 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4636 {
4637         struct lpfc_sli *psli;
4638         int rc;
4639
4640         /*
4641          * Initialize timers used by driver
4642          */
4643
4644         /* Heartbeat timer */
4645         init_timer(&phba->hb_tmofunc);
4646         phba->hb_tmofunc.function = lpfc_hb_timeout;
4647         phba->hb_tmofunc.data = (unsigned long)phba;
4648
4649         psli = &phba->sli;
4650         /* MBOX heartbeat timer */
4651         init_timer(&psli->mbox_tmo);
4652         psli->mbox_tmo.function = lpfc_mbox_timeout;
4653         psli->mbox_tmo.data = (unsigned long) phba;
4654         /* FCP polling mode timer */
4655         init_timer(&phba->fcp_poll_timer);
4656         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4657         phba->fcp_poll_timer.data = (unsigned long) phba;
4658         /* Fabric block timer */
4659         init_timer(&phba->fabric_block_timer);
4660         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4661         phba->fabric_block_timer.data = (unsigned long) phba;
4662         /* EA polling mode timer */
4663         init_timer(&phba->eratt_poll);
4664         phba->eratt_poll.function = lpfc_poll_eratt;
4665         phba->eratt_poll.data = (unsigned long) phba;
4666
4667         /* Host attention work mask setup */
4668         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4669         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4670
4671         /* Get all the module params for configuring this host */
4672         lpfc_get_cfgparam(phba);
4673         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4674                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4675                 /* check for menlo minimum sg count */
4676                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4677                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4678         }
4679
4680         if (!phba->sli.ring)
4681                 phba->sli.ring = (struct lpfc_sli_ring *)
4682                         kzalloc(LPFC_SLI3_MAX_RING *
4683                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4684         if (!phba->sli.ring)
4685                 return -ENOMEM;
4686
4687         /*
4688          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4689          * used to create the sg_dma_buf_pool must be dynamically calculated.
4690          * 2 segments are added since the IOCB needs a command and response bde.
4691          */
4692         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4693                 sizeof(struct fcp_rsp) +
4694                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4695
4696         if (phba->cfg_enable_bg) {
4697                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4698                 phba->cfg_sg_dma_buf_size +=
4699                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4700         }
4701
4702         /* Also reinitialize the host templates with new values. */
4703         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4704         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4705
4706         phba->max_vpi = LPFC_MAX_VPI;
4707         /* This will be set to correct value after config_port mbox */
4708         phba->max_vports = 0;
4709
4710         /*
4711          * Initialize the SLI Layer to run with lpfc HBAs.
4712          */
4713         lpfc_sli_setup(phba);
4714         lpfc_sli_queue_setup(phba);
4715
4716         /* Allocate device driver memory */
4717         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4718                 return -ENOMEM;
4719
4720         /*
4721          * Enable sr-iov virtual functions if supported and configured
4722          * through the module parameter.
4723          */
4724         if (phba->cfg_sriov_nr_virtfn > 0) {
4725                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4726                                                  phba->cfg_sriov_nr_virtfn);
4727                 if (rc) {
4728                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4729                                         "2808 Requested number of SR-IOV "
4730                                         "virtual functions (%d) is not "
4731                                         "supported\n",
4732                                         phba->cfg_sriov_nr_virtfn);
4733                         phba->cfg_sriov_nr_virtfn = 0;
4734                 }
4735         }
4736
4737         return 0;
4738 }
4739
4740 /**
4741  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4742  * @phba: pointer to lpfc hba data structure.
4743  *
4744  * This routine is invoked to unset the driver internal resources set up
4745  * specific for supporting the SLI-3 HBA device it attached to.
4746  **/
4747 static void
4748 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4749 {
4750         /* Free device driver memory allocated */
4751         lpfc_mem_free_all(phba);
4752
4753         return;
4754 }
4755
4756 /**
4757  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4758  * @phba: pointer to lpfc hba data structure.
4759  *
4760  * This routine is invoked to set up the driver internal resources specific to
4761  * support the SLI-4 HBA device it attached to.
4762  *
4763  * Return codes
4764  *      0 - successful
4765  *      other values - error
4766  **/
4767 static int
4768 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4769 {
4770         struct lpfc_sli *psli;
4771         LPFC_MBOXQ_t *mboxq;
4772         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4773         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4774         struct lpfc_mqe *mqe;
4775         int longs, sli_family;
4776         int sges_per_segment;
4777
4778         /* Before proceed, wait for POST done and device ready */
4779         rc = lpfc_sli4_post_status_check(phba);
4780         if (rc)
4781                 return -ENODEV;
4782
4783         /*
4784          * Initialize timers used by driver
4785          */
4786
4787         /* Heartbeat timer */
4788         init_timer(&phba->hb_tmofunc);
4789         phba->hb_tmofunc.function = lpfc_hb_timeout;
4790         phba->hb_tmofunc.data = (unsigned long)phba;
4791         init_timer(&phba->rrq_tmr);
4792         phba->rrq_tmr.function = lpfc_rrq_timeout;
4793         phba->rrq_tmr.data = (unsigned long)phba;
4794
4795         psli = &phba->sli;
4796         /* MBOX heartbeat timer */
4797         init_timer(&psli->mbox_tmo);
4798         psli->mbox_tmo.function = lpfc_mbox_timeout;
4799         psli->mbox_tmo.data = (unsigned long) phba;
4800         /* Fabric block timer */
4801         init_timer(&phba->fabric_block_timer);
4802         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4803         phba->fabric_block_timer.data = (unsigned long) phba;
4804         /* EA polling mode timer */
4805         init_timer(&phba->eratt_poll);
4806         phba->eratt_poll.function = lpfc_poll_eratt;
4807         phba->eratt_poll.data = (unsigned long) phba;
4808         /* FCF rediscover timer */
4809         init_timer(&phba->fcf.redisc_wait);
4810         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4811         phba->fcf.redisc_wait.data = (unsigned long)phba;
4812
4813         /*
4814          * Control structure for handling external multi-buffer mailbox
4815          * command pass-through.
4816          */
4817         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4818                 sizeof(struct lpfc_mbox_ext_buf_ctx));
4819         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4820
4821         /*
4822          * We need to do a READ_CONFIG mailbox command here before
4823          * calling lpfc_get_cfgparam. For VFs this will report the
4824          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4825          * All of the resources allocated
4826          * for this Port are tied to these values.
4827          */
4828         /* Get all the module params for configuring this host */
4829         lpfc_get_cfgparam(phba);
4830         phba->max_vpi = LPFC_MAX_VPI;
4831
4832         /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
4833         phba->cfg_fcp_io_channel = phba->cfg_fcp_eq_count;
4834
4835         /* This will be set to correct value after the read_config mbox */
4836         phba->max_vports = 0;
4837
4838         /* Program the default value of vlan_id and fc_map */
4839         phba->valid_vlan = 0;
4840         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4841         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4842         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4843
4844         /* With BlockGuard we can have multiple SGEs per Data Segemnt */
4845         sges_per_segment = 1;
4846         if (phba->cfg_enable_bg)
4847                 sges_per_segment = 2;
4848
4849         /*
4850          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
4851          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
4852          */
4853         if (!phba->sli.ring)
4854                 phba->sli.ring = kzalloc(
4855                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
4856                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4857         if (!phba->sli.ring)
4858                 return -ENOMEM;
4859         /*
4860          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4861          * used to create the sg_dma_buf_pool must be dynamically calculated.
4862          * 2 segments are added since the IOCB needs a command and response bde.
4863          * To insure that the scsi sgl does not cross a 4k page boundary only
4864          * sgl sizes of must be a power of 2.
4865          */
4866         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4867                     (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) *
4868                     sizeof(struct sli4_sge)));
4869
4870         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4871         max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4872         switch (sli_family) {
4873         case LPFC_SLI_INTF_FAMILY_BE2:
4874         case LPFC_SLI_INTF_FAMILY_BE3:
4875                 /* There is a single hint for BE - 2 pages per BPL. */
4876                 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4877                     LPFC_SLI_INTF_SLI_HINT1_1)
4878                         max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4879                 break;
4880         case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4881         case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4882         default:
4883                 break;
4884         }
4885
4886         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4887              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4888              dma_buf_size = dma_buf_size << 1)
4889                 ;
4890         if (dma_buf_size == max_buf_size)
4891                 phba->cfg_sg_seg_cnt = (dma_buf_size -
4892                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4893                         (2 * sizeof(struct sli4_sge))) /
4894                                 sizeof(struct sli4_sge);
4895         phba->cfg_sg_dma_buf_size = dma_buf_size;
4896
4897         /* Initialize buffer queue management fields */
4898         hbq_count = lpfc_sli_hbq_count();
4899         for (i = 0; i < hbq_count; ++i)
4900                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4901         INIT_LIST_HEAD(&phba->rb_pend_list);
4902         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4903         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4904
4905         /*
4906          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4907          */
4908         /* Initialize the Abort scsi buffer list used by driver */
4909         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4910         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4911         /* This abort list used by worker thread */
4912         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4913
4914         /*
4915          * Initialize driver internal slow-path work queues
4916          */
4917
4918         /* Driver internel slow-path CQ Event pool */
4919         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4920         /* Response IOCB work queue list */
4921         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4922         /* Asynchronous event CQ Event work queue list */
4923         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4924         /* Fast-path XRI aborted CQ Event work queue list */
4925         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4926         /* Slow-path XRI aborted CQ Event work queue list */
4927         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4928         /* Receive queue CQ Event work queue list */
4929         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4930
4931         /* Initialize extent block lists. */
4932         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4933         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4934         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4935         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4936
4937         /* Initialize the driver internal SLI layer lists. */
4938         lpfc_sli_setup(phba);
4939         lpfc_sli_queue_setup(phba);
4940
4941         /* Allocate device driver memory */
4942         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4943         if (rc)
4944                 return -ENOMEM;
4945
4946         /* IF Type 2 ports get initialized now. */
4947         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4948             LPFC_SLI_INTF_IF_TYPE_2) {
4949                 rc = lpfc_pci_function_reset(phba);
4950                 if (unlikely(rc))
4951                         return -ENODEV;
4952         }
4953
4954         /* Create the bootstrap mailbox command */
4955         rc = lpfc_create_bootstrap_mbox(phba);
4956         if (unlikely(rc))
4957                 goto out_free_mem;
4958
4959         /* Set up the host's endian order with the device. */
4960         rc = lpfc_setup_endian_order(phba);
4961         if (unlikely(rc))
4962                 goto out_free_bsmbx;
4963
4964         /* Set up the hba's configuration parameters. */
4965         rc = lpfc_sli4_read_config(phba);
4966         if (unlikely(rc))
4967                 goto out_free_bsmbx;
4968
4969         /* IF Type 0 ports get initialized now. */
4970         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4971             LPFC_SLI_INTF_IF_TYPE_0) {
4972                 rc = lpfc_pci_function_reset(phba);
4973                 if (unlikely(rc))
4974                         goto out_free_bsmbx;
4975         }
4976
4977         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4978                                                        GFP_KERNEL);
4979         if (!mboxq) {
4980                 rc = -ENOMEM;
4981                 goto out_free_bsmbx;
4982         }
4983
4984         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4985         lpfc_supported_pages(mboxq);
4986         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4987         if (!rc) {
4988                 mqe = &mboxq->u.mqe;
4989                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4990                        LPFC_MAX_SUPPORTED_PAGES);
4991                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4992                         switch (pn_page[i]) {
4993                         case LPFC_SLI4_PARAMETERS:
4994                                 phba->sli4_hba.pc_sli4_params.supported = 1;
4995                                 break;
4996                         default:
4997                                 break;
4998                         }
4999                 }
5000                 /* Read the port's SLI4 Parameters capabilities if supported. */
5001                 if (phba->sli4_hba.pc_sli4_params.supported)
5002                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5003                 if (rc) {
5004                         mempool_free(mboxq, phba->mbox_mem_pool);
5005                         rc = -EIO;
5006                         goto out_free_bsmbx;
5007                 }
5008         }
5009         /*
5010          * Get sli4 parameters that override parameters from Port capabilities.
5011          * If this call fails, it isn't critical unless the SLI4 parameters come
5012          * back in conflict.
5013          */
5014         rc = lpfc_get_sli4_parameters(phba, mboxq);
5015         if (rc) {
5016                 if (phba->sli4_hba.extents_in_use &&
5017                     phba->sli4_hba.rpi_hdrs_in_use) {
5018                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5019                                 "2999 Unsupported SLI4 Parameters "
5020                                 "Extents and RPI headers enabled.\n");
5021                         goto out_free_bsmbx;
5022                 }
5023         }
5024         mempool_free(mboxq, phba->mbox_mem_pool);
5025         /* Verify all the SLI4 queues */
5026         rc = lpfc_sli4_queue_verify(phba);
5027         if (rc)
5028                 goto out_free_bsmbx;
5029
5030         /* Create driver internal CQE event pool */
5031         rc = lpfc_sli4_cq_event_pool_create(phba);
5032         if (rc)
5033                 goto out_free_bsmbx;
5034
5035         /* Initialize sgl lists per host */
5036         lpfc_init_sgl_list(phba);
5037
5038         /* Allocate and initialize active sgl array */
5039         rc = lpfc_init_active_sgl_array(phba);
5040         if (rc) {
5041                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5042                                 "1430 Failed to initialize sgl list.\n");
5043                 goto out_destroy_cq_event_pool;
5044         }
5045         rc = lpfc_sli4_init_rpi_hdrs(phba);
5046         if (rc) {
5047                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5048                                 "1432 Failed to initialize rpi headers.\n");
5049                 goto out_free_active_sgl;
5050         }
5051
5052         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5053         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5054         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5055                                          GFP_KERNEL);
5056         if (!phba->fcf.fcf_rr_bmask) {
5057                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5058                                 "2759 Failed allocate memory for FCF round "
5059                                 "robin failover bmask\n");
5060                 rc = -ENOMEM;
5061                 goto out_remove_rpi_hdrs;
5062         }
5063
5064         phba->sli4_hba.fcp_eq_hdl =
5065                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5066                             phba->cfg_fcp_io_channel), GFP_KERNEL);
5067         if (!phba->sli4_hba.fcp_eq_hdl) {
5068                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5069                                 "2572 Failed allocate memory for "
5070                                 "fast-path per-EQ handle array\n");
5071                 rc = -ENOMEM;
5072                 goto out_free_fcf_rr_bmask;
5073         }
5074
5075         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5076                                       phba->cfg_fcp_io_channel), GFP_KERNEL);
5077         if (!phba->sli4_hba.msix_entries) {
5078                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5079                                 "2573 Failed allocate memory for msi-x "
5080                                 "interrupt vector entries\n");
5081                 rc = -ENOMEM;
5082                 goto out_free_fcp_eq_hdl;
5083         }
5084
5085         /*
5086          * Enable sr-iov virtual functions if supported and configured
5087          * through the module parameter.
5088          */
5089         if (phba->cfg_sriov_nr_virtfn > 0) {
5090                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5091                                                  phba->cfg_sriov_nr_virtfn);
5092                 if (rc) {
5093                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5094                                         "3020 Requested number of SR-IOV "
5095                                         "virtual functions (%d) is not "
5096                                         "supported\n",
5097                                         phba->cfg_sriov_nr_virtfn);
5098                         phba->cfg_sriov_nr_virtfn = 0;
5099                 }
5100         }
5101
5102         return 0;
5103
5104 out_free_fcp_eq_hdl:
5105         kfree(phba->sli4_hba.fcp_eq_hdl);
5106 out_free_fcf_rr_bmask:
5107         kfree(phba->fcf.fcf_rr_bmask);
5108 out_remove_rpi_hdrs:
5109         lpfc_sli4_remove_rpi_hdrs(phba);
5110 out_free_active_sgl:
5111         lpfc_free_active_sgl(phba);
5112 out_destroy_cq_event_pool:
5113         lpfc_sli4_cq_event_pool_destroy(phba);
5114 out_free_bsmbx:
5115         lpfc_destroy_bootstrap_mbox(phba);
5116 out_free_mem:
5117         lpfc_mem_free(phba);
5118         return rc;
5119 }
5120
5121 /**
5122  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5123  * @phba: pointer to lpfc hba data structure.
5124  *
5125  * This routine is invoked to unset the driver internal resources set up
5126  * specific for supporting the SLI-4 HBA device it attached to.
5127  **/
5128 static void
5129 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5130 {
5131         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5132
5133         /* Free memory allocated for msi-x interrupt vector entries */
5134         kfree(phba->sli4_hba.msix_entries);
5135
5136         /* Free memory allocated for fast-path work queue handles */
5137         kfree(phba->sli4_hba.fcp_eq_hdl);
5138
5139         /* Free the allocated rpi headers. */
5140         lpfc_sli4_remove_rpi_hdrs(phba);
5141         lpfc_sli4_remove_rpis(phba);
5142
5143         /* Free eligible FCF index bmask */
5144         kfree(phba->fcf.fcf_rr_bmask);
5145
5146         /* Free the ELS sgl list */
5147         lpfc_free_active_sgl(phba);
5148         lpfc_free_els_sgl_list(phba);
5149
5150         /* Free the completion queue EQ event pool */
5151         lpfc_sli4_cq_event_release_all(phba);
5152         lpfc_sli4_cq_event_pool_destroy(phba);
5153
5154         /* Release resource identifiers. */
5155         lpfc_sli4_dealloc_resource_identifiers(phba);
5156
5157         /* Free the bsmbx region. */
5158         lpfc_destroy_bootstrap_mbox(phba);
5159
5160         /* Free the SLI Layer memory with SLI4 HBAs */
5161         lpfc_mem_free_all(phba);
5162
5163         /* Free the current connect table */
5164         list_for_each_entry_safe(conn_entry, next_conn_entry,
5165                 &phba->fcf_conn_rec_list, list) {
5166                 list_del_init(&conn_entry->list);
5167                 kfree(conn_entry);
5168         }
5169
5170         return;
5171 }
5172
5173 /**
5174  * lpfc_init_api_table_setup - Set up init api function jump table
5175  * @phba: The hba struct for which this call is being executed.
5176  * @dev_grp: The HBA PCI-Device group number.
5177  *
5178  * This routine sets up the device INIT interface API function jump table
5179  * in @phba struct.
5180  *
5181  * Returns: 0 - success, -ENODEV - failure.
5182  **/
5183 int
5184 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5185 {
5186         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5187         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5188         phba->lpfc_selective_reset = lpfc_selective_reset;
5189         switch (dev_grp) {
5190         case LPFC_PCI_DEV_LP:
5191                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5192                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5193                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5194                 break;
5195         case LPFC_PCI_DEV_OC:
5196                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5197                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5198                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5199                 break;
5200         default:
5201                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5202                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5203                                 dev_grp);
5204                 return -ENODEV;
5205                 break;
5206         }
5207         return 0;
5208 }
5209
5210 /**
5211  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5212  * @phba: pointer to lpfc hba data structure.
5213  *
5214  * This routine is invoked to set up the driver internal resources before the
5215  * device specific resource setup to support the HBA device it attached to.
5216  *
5217  * Return codes
5218  *      0 - successful
5219  *      other values - error
5220  **/
5221 static int
5222 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5223 {
5224         /*
5225          * Driver resources common to all SLI revisions
5226          */
5227         atomic_set(&phba->fast_event_count, 0);
5228         spin_lock_init(&phba->hbalock);
5229
5230         /* Initialize ndlp management spinlock */
5231         spin_lock_init(&phba->ndlp_lock);
5232
5233         INIT_LIST_HEAD(&phba->port_list);
5234         INIT_LIST_HEAD(&phba->work_list);
5235         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5236
5237         /* Initialize the wait queue head for the kernel thread */
5238         init_waitqueue_head(&phba->work_waitq);
5239
5240         /* Initialize the scsi buffer list used by driver for scsi IO */
5241         spin_lock_init(&phba->scsi_buf_list_lock);
5242         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
5243
5244         /* Initialize the fabric iocb list */
5245         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5246
5247         /* Initialize list to save ELS buffers */
5248         INIT_LIST_HEAD(&phba->elsbuf);
5249
5250         /* Initialize FCF connection rec list */
5251         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5252
5253         return 0;
5254 }
5255
5256 /**
5257  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5258  * @phba: pointer to lpfc hba data structure.
5259  *
5260  * This routine is invoked to set up the driver internal resources after the
5261  * device specific resource setup to support the HBA device it attached to.
5262  *
5263  * Return codes
5264  *      0 - successful
5265  *      other values - error
5266  **/
5267 static int
5268 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5269 {
5270         int error;
5271
5272         /* Startup the kernel thread for this host adapter. */
5273         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5274                                           "lpfc_worker_%d", phba->brd_no);
5275         if (IS_ERR(phba->worker_thread)) {
5276                 error = PTR_ERR(phba->worker_thread);
5277                 return error;
5278         }
5279
5280         return 0;
5281 }
5282
5283 /**
5284  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5285  * @phba: pointer to lpfc hba data structure.
5286  *
5287  * This routine is invoked to unset the driver internal resources set up after
5288  * the device specific resource setup for supporting the HBA device it
5289  * attached to.
5290  **/
5291 static void
5292 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5293 {
5294         /* Stop kernel worker thread */
5295         kthread_stop(phba->worker_thread);
5296 }
5297
5298 /**
5299  * lpfc_free_iocb_list - Free iocb list.
5300  * @phba: pointer to lpfc hba data structure.
5301  *
5302  * This routine is invoked to free the driver's IOCB list and memory.
5303  **/
5304 static void
5305 lpfc_free_iocb_list(struct lpfc_hba *phba)
5306 {
5307         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5308
5309         spin_lock_irq(&phba->hbalock);
5310         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5311                                  &phba->lpfc_iocb_list, list) {
5312                 list_del(&iocbq_entry->list);
5313                 kfree(iocbq_entry);
5314                 phba->total_iocbq_bufs--;
5315         }
5316         spin_unlock_irq(&phba->hbalock);
5317
5318         return;
5319 }
5320
5321 /**
5322  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5323  * @phba: pointer to lpfc hba data structure.
5324  *
5325  * This routine is invoked to allocate and initizlize the driver's IOCB
5326  * list and set up the IOCB tag array accordingly.
5327  *
5328  * Return codes
5329  *      0 - successful
5330  *      other values - error
5331  **/
5332 static int
5333 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5334 {
5335         struct lpfc_iocbq *iocbq_entry = NULL;
5336         uint16_t iotag;
5337         int i;
5338
5339         /* Initialize and populate the iocb list per host.  */
5340         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5341         for (i = 0; i < iocb_count; i++) {
5342                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5343                 if (iocbq_entry == NULL) {
5344                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5345                                 "expected %d count. Unloading driver.\n",
5346                                 __func__, i, LPFC_IOCB_LIST_CNT);
5347                         goto out_free_iocbq;
5348                 }
5349
5350                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5351                 if (iotag == 0) {
5352                         kfree(iocbq_entry);
5353                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5354                                 "Unloading driver.\n", __func__);
5355                         goto out_free_iocbq;
5356                 }
5357                 iocbq_entry->sli4_lxritag = NO_XRI;
5358                 iocbq_entry->sli4_xritag = NO_XRI;
5359
5360                 spin_lock_irq(&phba->hbalock);
5361                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5362                 phba->total_iocbq_bufs++;
5363                 spin_unlock_irq(&phba->hbalock);
5364         }
5365
5366         return 0;
5367
5368 out_free_iocbq:
5369         lpfc_free_iocb_list(phba);
5370
5371         return -ENOMEM;
5372 }
5373
5374 /**
5375  * lpfc_free_sgl_list - Free a given sgl list.
5376  * @phba: pointer to lpfc hba data structure.
5377  * @sglq_list: pointer to the head of sgl list.
5378  *
5379  * This routine is invoked to free a give sgl list and memory.
5380  **/
5381 void
5382 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5383 {
5384         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5385
5386         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5387                 list_del(&sglq_entry->list);
5388                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5389                 kfree(sglq_entry);
5390         }
5391 }
5392
5393 /**
5394  * lpfc_free_els_sgl_list - Free els sgl list.
5395  * @phba: pointer to lpfc hba data structure.
5396  *
5397  * This routine is invoked to free the driver's els sgl list and memory.
5398  **/
5399 static void
5400 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5401 {
5402         LIST_HEAD(sglq_list);
5403
5404         /* Retrieve all els sgls from driver list */
5405         spin_lock_irq(&phba->hbalock);
5406         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5407         spin_unlock_irq(&phba->hbalock);
5408
5409         /* Now free the sgl list */
5410         lpfc_free_sgl_list(phba, &sglq_list);
5411 }
5412
5413 /**
5414  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5415  * @phba: pointer to lpfc hba data structure.
5416  *
5417  * This routine is invoked to allocate the driver's active sgl memory.
5418  * This array will hold the sglq_entry's for active IOs.
5419  **/
5420 static int
5421 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5422 {
5423         int size;
5424         size = sizeof(struct lpfc_sglq *);
5425         size *= phba->sli4_hba.max_cfg_param.max_xri;
5426
5427         phba->sli4_hba.lpfc_sglq_active_list =
5428                 kzalloc(size, GFP_KERNEL);
5429         if (!phba->sli4_hba.lpfc_sglq_active_list)
5430                 return -ENOMEM;
5431         return 0;
5432 }
5433
5434 /**
5435  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5436  * @phba: pointer to lpfc hba data structure.
5437  *
5438  * This routine is invoked to walk through the array of active sglq entries
5439  * and free all of the resources.
5440  * This is just a place holder for now.
5441  **/
5442 static void
5443 lpfc_free_active_sgl(struct lpfc_hba *phba)
5444 {
5445         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5446 }
5447
5448 /**
5449  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5450  * @phba: pointer to lpfc hba data structure.
5451  *
5452  * This routine is invoked to allocate and initizlize the driver's sgl
5453  * list and set up the sgl xritag tag array accordingly.
5454  *
5455  **/
5456 static void
5457 lpfc_init_sgl_list(struct lpfc_hba *phba)
5458 {
5459         /* Initialize and populate the sglq list per host/VF. */
5460         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5461         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5462
5463         /* els xri-sgl book keeping */
5464         phba->sli4_hba.els_xri_cnt = 0;
5465
5466         /* scsi xri-buffer book keeping */
5467         phba->sli4_hba.scsi_xri_cnt = 0;
5468 }
5469
5470 /**
5471  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5472  * @phba: pointer to lpfc hba data structure.
5473  *
5474  * This routine is invoked to post rpi header templates to the
5475  * port for those SLI4 ports that do not support extents.  This routine
5476  * posts a PAGE_SIZE memory region to the port to hold up to
5477  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5478  * and should be called only when interrupts are disabled.
5479  *
5480  * Return codes
5481  *      0 - successful
5482  *      -ERROR - otherwise.
5483  **/
5484 int
5485 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5486 {
5487         int rc = 0;
5488         struct lpfc_rpi_hdr *rpi_hdr;
5489
5490         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5491         if (!phba->sli4_hba.rpi_hdrs_in_use)
5492                 return rc;
5493         if (phba->sli4_hba.extents_in_use)
5494                 return -EIO;
5495
5496         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5497         if (!rpi_hdr) {
5498                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5499                                 "0391 Error during rpi post operation\n");
5500                 lpfc_sli4_remove_rpis(phba);
5501                 rc = -ENODEV;
5502         }
5503
5504         return rc;
5505 }
5506
5507 /**
5508  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5509  * @phba: pointer to lpfc hba data structure.
5510  *
5511  * This routine is invoked to allocate a single 4KB memory region to
5512  * support rpis and stores them in the phba.  This single region
5513  * provides support for up to 64 rpis.  The region is used globally
5514  * by the device.
5515  *
5516  * Returns:
5517  *   A valid rpi hdr on success.
5518  *   A NULL pointer on any failure.
5519  **/
5520 struct lpfc_rpi_hdr *
5521 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5522 {
5523         uint16_t rpi_limit, curr_rpi_range;
5524         struct lpfc_dmabuf *dmabuf;
5525         struct lpfc_rpi_hdr *rpi_hdr;
5526         uint32_t rpi_count;
5527
5528         /*
5529          * If the SLI4 port supports extents, posting the rpi header isn't
5530          * required.  Set the expected maximum count and let the actual value
5531          * get set when extents are fully allocated.
5532          */
5533         if (!phba->sli4_hba.rpi_hdrs_in_use)
5534                 return NULL;
5535         if (phba->sli4_hba.extents_in_use)
5536                 return NULL;
5537
5538         /* The limit on the logical index is just the max_rpi count. */
5539         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5540         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5541
5542         spin_lock_irq(&phba->hbalock);
5543         /*
5544          * Establish the starting RPI in this header block.  The starting
5545          * rpi is normalized to a zero base because the physical rpi is
5546          * port based.
5547          */
5548         curr_rpi_range = phba->sli4_hba.next_rpi;
5549         spin_unlock_irq(&phba->hbalock);
5550
5551         /*
5552          * The port has a limited number of rpis. The increment here
5553          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5554          * and to allow the full max_rpi range per port.
5555          */
5556         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5557                 rpi_count = rpi_limit - curr_rpi_range;
5558         else
5559                 rpi_count = LPFC_RPI_HDR_COUNT;
5560
5561         if (!rpi_count)
5562                 return NULL;
5563         /*
5564          * First allocate the protocol header region for the port.  The
5565          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5566          */
5567         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5568         if (!dmabuf)
5569                 return NULL;
5570
5571         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5572                                           LPFC_HDR_TEMPLATE_SIZE,
5573                                           &dmabuf->phys,
5574                                           GFP_KERNEL);
5575         if (!dmabuf->virt) {
5576                 rpi_hdr = NULL;
5577                 goto err_free_dmabuf;
5578         }
5579
5580         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5581         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5582                 rpi_hdr = NULL;
5583                 goto err_free_coherent;
5584         }
5585
5586         /* Save the rpi header data for cleanup later. */
5587         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5588         if (!rpi_hdr)
5589                 goto err_free_coherent;
5590
5591         rpi_hdr->dmabuf = dmabuf;
5592         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5593         rpi_hdr->page_count = 1;
5594         spin_lock_irq(&phba->hbalock);
5595
5596         /* The rpi_hdr stores the logical index only. */
5597         rpi_hdr->start_rpi = curr_rpi_range;
5598         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5599
5600         /*
5601          * The next_rpi stores the next logical module-64 rpi value used
5602          * to post physical rpis in subsequent rpi postings.
5603          */
5604         phba->sli4_hba.next_rpi += rpi_count;
5605         spin_unlock_irq(&phba->hbalock);
5606         return rpi_hdr;
5607
5608  err_free_coherent:
5609         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5610                           dmabuf->virt, dmabuf->phys);
5611  err_free_dmabuf:
5612         kfree(dmabuf);
5613         return NULL;
5614 }
5615
5616 /**
5617  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5618  * @phba: pointer to lpfc hba data structure.
5619  *
5620  * This routine is invoked to remove all memory resources allocated
5621  * to support rpis for SLI4 ports not supporting extents. This routine
5622  * presumes the caller has released all rpis consumed by fabric or port
5623  * logins and is prepared to have the header pages removed.
5624  **/
5625 void
5626 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5627 {
5628         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5629
5630         if (!phba->sli4_hba.rpi_hdrs_in_use)
5631                 goto exit;
5632
5633         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5634                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5635                 list_del(&rpi_hdr->list);
5636                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5637                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5638                 kfree(rpi_hdr->dmabuf);
5639                 kfree(rpi_hdr);
5640         }
5641  exit:
5642         /* There are no rpis available to the port now. */
5643         phba->sli4_hba.next_rpi = 0;
5644 }
5645
5646 /**
5647  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5648  * @pdev: pointer to pci device data structure.
5649  *
5650  * This routine is invoked to allocate the driver hba data structure for an
5651  * HBA device. If the allocation is successful, the phba reference to the
5652  * PCI device data structure is set.
5653  *
5654  * Return codes
5655  *      pointer to @phba - successful
5656  *      NULL - error
5657  **/
5658 static struct lpfc_hba *
5659 lpfc_hba_alloc(struct pci_dev *pdev)
5660 {
5661         struct lpfc_hba *phba;
5662
5663         /* Allocate memory for HBA structure */
5664         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5665         if (!phba) {
5666                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5667                 return NULL;
5668         }
5669
5670         /* Set reference to PCI device in HBA structure */
5671         phba->pcidev = pdev;
5672
5673         /* Assign an unused board number */
5674         phba->brd_no = lpfc_get_instance();
5675         if (phba->brd_no < 0) {
5676                 kfree(phba);
5677                 return NULL;
5678         }
5679
5680         spin_lock_init(&phba->ct_ev_lock);
5681         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5682
5683         return phba;
5684 }
5685
5686 /**
5687  * lpfc_hba_free - Free driver hba data structure with a device.
5688  * @phba: pointer to lpfc hba data structure.
5689  *
5690  * This routine is invoked to free the driver hba data structure with an
5691  * HBA device.
5692  **/
5693 static void
5694 lpfc_hba_free(struct lpfc_hba *phba)
5695 {
5696         /* Release the driver assigned board number */
5697         idr_remove(&lpfc_hba_index, phba->brd_no);
5698
5699         /* Free memory allocated with sli rings */
5700         kfree(phba->sli.ring);
5701         phba->sli.ring = NULL;
5702
5703         kfree(phba);
5704         return;
5705 }
5706
5707 /**
5708  * lpfc_create_shost - Create hba physical port with associated scsi host.
5709  * @phba: pointer to lpfc hba data structure.
5710  *
5711  * This routine is invoked to create HBA physical port and associate a SCSI
5712  * host with it.
5713  *
5714  * Return codes
5715  *      0 - successful
5716  *      other values - error
5717  **/
5718 static int
5719 lpfc_create_shost(struct lpfc_hba *phba)
5720 {
5721         struct lpfc_vport *vport;
5722         struct Scsi_Host  *shost;
5723
5724         /* Initialize HBA FC structure */
5725         phba->fc_edtov = FF_DEF_EDTOV;
5726         phba->fc_ratov = FF_DEF_RATOV;
5727         phba->fc_altov = FF_DEF_ALTOV;
5728         phba->fc_arbtov = FF_DEF_ARBTOV;
5729
5730         atomic_set(&phba->sdev_cnt, 0);
5731         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5732         if (!vport)
5733                 return -ENODEV;
5734
5735         shost = lpfc_shost_from_vport(vport);
5736         phba->pport = vport;
5737         lpfc_debugfs_initialize(vport);
5738         /* Put reference to SCSI host to driver's device private data */
5739         pci_set_drvdata(phba->pcidev, shost);
5740
5741         return 0;
5742 }
5743
5744 /**
5745  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5746  * @phba: pointer to lpfc hba data structure.
5747  *
5748  * This routine is invoked to destroy HBA physical port and the associated
5749  * SCSI host.
5750  **/
5751 static void
5752 lpfc_destroy_shost(struct lpfc_hba *phba)
5753 {
5754         struct lpfc_vport *vport = phba->pport;
5755
5756         /* Destroy physical port that associated with the SCSI host */
5757         destroy_port(vport);
5758
5759         return;
5760 }
5761
5762 /**
5763  * lpfc_setup_bg - Setup Block guard structures and debug areas.
5764  * @phba: pointer to lpfc hba data structure.
5765  * @shost: the shost to be used to detect Block guard settings.
5766  *
5767  * This routine sets up the local Block guard protocol settings for @shost.
5768  * This routine also allocates memory for debugging bg buffers.
5769  **/
5770 static void
5771 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5772 {
5773         uint32_t old_mask;
5774         uint32_t old_guard;
5775
5776         int pagecnt = 10;
5777         if (lpfc_prot_mask && lpfc_prot_guard) {
5778                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5779                                 "1478 Registering BlockGuard with the "
5780                                 "SCSI layer\n");
5781
5782                 old_mask = lpfc_prot_mask;
5783                 old_guard = lpfc_prot_guard;
5784
5785                 /* Only allow supported values */
5786                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
5787                         SHOST_DIX_TYPE0_PROTECTION |
5788                         SHOST_DIX_TYPE1_PROTECTION);
5789                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
5790
5791                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
5792                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
5793                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
5794
5795                 if (lpfc_prot_mask && lpfc_prot_guard) {
5796                         if ((old_mask != lpfc_prot_mask) ||
5797                                 (old_guard != lpfc_prot_guard))
5798                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5799                                         "1475 Registering BlockGuard with the "
5800                                         "SCSI layer: mask %d  guard %d\n",
5801                                         lpfc_prot_mask, lpfc_prot_guard);
5802
5803                         scsi_host_set_prot(shost, lpfc_prot_mask);
5804                         scsi_host_set_guard(shost, lpfc_prot_guard);
5805                 } else
5806                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5807                                 "1479 Not Registering BlockGuard with the SCSI "
5808                                 "layer, Bad protection parameters: %d %d\n",
5809                                 old_mask, old_guard);
5810         }
5811
5812         if (!_dump_buf_data) {
5813                 while (pagecnt) {
5814                         spin_lock_init(&_dump_buf_lock);
5815                         _dump_buf_data =
5816                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5817                         if (_dump_buf_data) {
5818                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5819                                         "9043 BLKGRD: allocated %d pages for "
5820                                        "_dump_buf_data at 0x%p\n",
5821                                        (1 << pagecnt), _dump_buf_data);
5822                                 _dump_buf_data_order = pagecnt;
5823                                 memset(_dump_buf_data, 0,
5824                                        ((1 << PAGE_SHIFT) << pagecnt));
5825                                 break;
5826                         } else
5827                                 --pagecnt;
5828                 }
5829                 if (!_dump_buf_data_order)
5830                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5831                                 "9044 BLKGRD: ERROR unable to allocate "
5832                                "memory for hexdump\n");
5833         } else
5834                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5835                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5836                        "\n", _dump_buf_data);
5837         if (!_dump_buf_dif) {
5838                 while (pagecnt) {
5839                         _dump_buf_dif =
5840                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5841                         if (_dump_buf_dif) {
5842                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5843                                         "9046 BLKGRD: allocated %d pages for "
5844                                        "_dump_buf_dif at 0x%p\n",
5845                                        (1 << pagecnt), _dump_buf_dif);
5846                                 _dump_buf_dif_order = pagecnt;
5847                                 memset(_dump_buf_dif, 0,
5848                                        ((1 << PAGE_SHIFT) << pagecnt));
5849                                 break;
5850                         } else
5851                                 --pagecnt;
5852                 }
5853                 if (!_dump_buf_dif_order)
5854                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5855                         "9047 BLKGRD: ERROR unable to allocate "
5856                                "memory for hexdump\n");
5857         } else
5858                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5859                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5860                        _dump_buf_dif);
5861 }
5862
5863 /**
5864  * lpfc_post_init_setup - Perform necessary device post initialization setup.
5865  * @phba: pointer to lpfc hba data structure.
5866  *
5867  * This routine is invoked to perform all the necessary post initialization
5868  * setup for the device.
5869  **/
5870 static void
5871 lpfc_post_init_setup(struct lpfc_hba *phba)
5872 {
5873         struct Scsi_Host  *shost;
5874         struct lpfc_adapter_event_header adapter_event;
5875
5876         /* Get the default values for Model Name and Description */
5877         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5878
5879         /*
5880          * hba setup may have changed the hba_queue_depth so we need to
5881          * adjust the value of can_queue.
5882          */
5883         shost = pci_get_drvdata(phba->pcidev);
5884         shost->can_queue = phba->cfg_hba_queue_depth - 10;
5885         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5886                 lpfc_setup_bg(phba, shost);
5887
5888         lpfc_host_attrib_init(shost);
5889
5890         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5891                 spin_lock_irq(shost->host_lock);
5892                 lpfc_poll_start_timer(phba);
5893                 spin_unlock_irq(shost->host_lock);
5894         }
5895
5896         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5897                         "0428 Perform SCSI scan\n");
5898         /* Send board arrival event to upper layer */
5899         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5900         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5901         fc_host_post_vendor_event(shost, fc_get_event_number(),
5902                                   sizeof(adapter_event),
5903                                   (char *) &adapter_event,
5904                                   LPFC_NL_VENDOR_ID);
5905         return;
5906 }
5907
5908 /**
5909  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5910  * @phba: pointer to lpfc hba data structure.
5911  *
5912  * This routine is invoked to set up the PCI device memory space for device
5913  * with SLI-3 interface spec.
5914  *
5915  * Return codes
5916  *      0 - successful
5917  *      other values - error
5918  **/
5919 static int
5920 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5921 {
5922         struct pci_dev *pdev;
5923         unsigned long bar0map_len, bar2map_len;
5924         int i, hbq_count;
5925         void *ptr;
5926         int error = -ENODEV;
5927
5928         /* Obtain PCI device reference */
5929         if (!phba->pcidev)
5930                 return error;
5931         else
5932                 pdev = phba->pcidev;
5933
5934         /* Set the device DMA mask size */
5935         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5936          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5937                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5938                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5939                         return error;
5940                 }
5941         }
5942
5943         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5944          * required by each mapping.
5945          */
5946         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5947         bar0map_len = pci_resource_len(pdev, 0);
5948
5949         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5950         bar2map_len = pci_resource_len(pdev, 2);
5951
5952         /* Map HBA SLIM to a kernel virtual address. */
5953         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5954         if (!phba->slim_memmap_p) {
5955                 dev_printk(KERN_ERR, &pdev->dev,
5956                            "ioremap failed for SLIM memory.\n");
5957                 goto out;
5958         }
5959
5960         /* Map HBA Control Registers to a kernel virtual address. */
5961         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5962         if (!phba->ctrl_regs_memmap_p) {
5963                 dev_printk(KERN_ERR, &pdev->dev,
5964                            "ioremap failed for HBA control registers.\n");
5965                 goto out_iounmap_slim;
5966         }
5967
5968         /* Allocate memory for SLI-2 structures */
5969         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5970                                                SLI2_SLIM_SIZE,
5971                                                &phba->slim2p.phys,
5972                                                GFP_KERNEL);
5973         if (!phba->slim2p.virt)
5974                 goto out_iounmap;
5975
5976         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5977         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5978         phba->mbox_ext = (phba->slim2p.virt +
5979                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5980         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5981         phba->IOCBs = (phba->slim2p.virt +
5982                        offsetof(struct lpfc_sli2_slim, IOCBs));
5983
5984         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5985                                                  lpfc_sli_hbq_size(),
5986                                                  &phba->hbqslimp.phys,
5987                                                  GFP_KERNEL);
5988         if (!phba->hbqslimp.virt)
5989                 goto out_free_slim;
5990
5991         hbq_count = lpfc_sli_hbq_count();
5992         ptr = phba->hbqslimp.virt;
5993         for (i = 0; i < hbq_count; ++i) {
5994                 phba->hbqs[i].hbq_virt = ptr;
5995                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5996                 ptr += (lpfc_hbq_defs[i]->entry_count *
5997                         sizeof(struct lpfc_hbq_entry));
5998         }
5999         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6000         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6001
6002         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6003
6004         INIT_LIST_HEAD(&phba->rb_pend_list);
6005
6006         phba->MBslimaddr = phba->slim_memmap_p;
6007         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6008         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6009         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6010         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6011
6012         return 0;
6013
6014 out_free_slim:
6015         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6016                           phba->slim2p.virt, phba->slim2p.phys);
6017 out_iounmap:
6018         iounmap(phba->ctrl_regs_memmap_p);
6019 out_iounmap_slim:
6020         iounmap(phba->slim_memmap_p);
6021 out:
6022         return error;
6023 }
6024
6025 /**
6026  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6027  * @phba: pointer to lpfc hba data structure.
6028  *
6029  * This routine is invoked to unset the PCI device memory space for device
6030  * with SLI-3 interface spec.
6031  **/
6032 static void
6033 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6034 {
6035         struct pci_dev *pdev;
6036
6037         /* Obtain PCI device reference */
6038         if (!phba->pcidev)
6039                 return;
6040         else
6041                 pdev = phba->pcidev;
6042
6043         /* Free coherent DMA memory allocated */
6044         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6045                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6046         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6047                           phba->slim2p.virt, phba->slim2p.phys);
6048
6049         /* I/O memory unmap */
6050         iounmap(phba->ctrl_regs_memmap_p);
6051         iounmap(phba->slim_memmap_p);
6052
6053         return;
6054 }
6055
6056 /**
6057  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6058  * @phba: pointer to lpfc hba data structure.
6059  *
6060  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6061  * done and check status.
6062  *
6063  * Return 0 if successful, otherwise -ENODEV.
6064  **/
6065 int
6066 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6067 {
6068         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6069         struct lpfc_register reg_data;
6070         int i, port_error = 0;
6071         uint32_t if_type;
6072
6073         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6074         memset(&reg_data, 0, sizeof(reg_data));
6075         if (!phba->sli4_hba.PSMPHRregaddr)
6076                 return -ENODEV;
6077
6078         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6079         for (i = 0; i < 3000; i++) {
6080                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6081                         &portsmphr_reg.word0) ||
6082                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6083                         /* Port has a fatal POST error, break out */
6084                         port_error = -ENODEV;
6085                         break;
6086                 }
6087                 if (LPFC_POST_STAGE_PORT_READY ==
6088                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6089                         break;
6090                 msleep(10);
6091         }
6092
6093         /*
6094          * If there was a port error during POST, then don't proceed with
6095          * other register reads as the data may not be valid.  Just exit.
6096          */
6097         if (port_error) {
6098                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6099                         "1408 Port Failed POST - portsmphr=0x%x, "
6100                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6101                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6102                         portsmphr_reg.word0,
6103                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6104                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6105                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6106                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6107                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6108                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6109                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6110                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6111         } else {
6112                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6113                                 "2534 Device Info: SLIFamily=0x%x, "
6114                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6115                                 "SLIHint_2=0x%x, FT=0x%x\n",
6116                                 bf_get(lpfc_sli_intf_sli_family,
6117                                        &phba->sli4_hba.sli_intf),
6118                                 bf_get(lpfc_sli_intf_slirev,
6119                                        &phba->sli4_hba.sli_intf),
6120                                 bf_get(lpfc_sli_intf_if_type,
6121                                        &phba->sli4_hba.sli_intf),
6122                                 bf_get(lpfc_sli_intf_sli_hint1,
6123                                        &phba->sli4_hba.sli_intf),
6124                                 bf_get(lpfc_sli_intf_sli_hint2,
6125                                        &phba->sli4_hba.sli_intf),
6126                                 bf_get(lpfc_sli_intf_func_type,
6127                                        &phba->sli4_hba.sli_intf));
6128                 /*
6129                  * Check for other Port errors during the initialization
6130                  * process.  Fail the load if the port did not come up
6131                  * correctly.
6132                  */
6133                 if_type = bf_get(lpfc_sli_intf_if_type,
6134                                  &phba->sli4_hba.sli_intf);
6135                 switch (if_type) {
6136                 case LPFC_SLI_INTF_IF_TYPE_0:
6137                         phba->sli4_hba.ue_mask_lo =
6138                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6139                         phba->sli4_hba.ue_mask_hi =
6140                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6141                         uerrlo_reg.word0 =
6142                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6143                         uerrhi_reg.word0 =
6144                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6145                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6146                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6147                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6148                                                 "1422 Unrecoverable Error "
6149                                                 "Detected during POST "
6150                                                 "uerr_lo_reg=0x%x, "
6151                                                 "uerr_hi_reg=0x%x, "
6152                                                 "ue_mask_lo_reg=0x%x, "
6153                                                 "ue_mask_hi_reg=0x%x\n",
6154                                                 uerrlo_reg.word0,
6155                                                 uerrhi_reg.word0,
6156                                                 phba->sli4_hba.ue_mask_lo,
6157                                                 phba->sli4_hba.ue_mask_hi);
6158                                 port_error = -ENODEV;
6159                         }
6160                         break;
6161                 case LPFC_SLI_INTF_IF_TYPE_2:
6162                         /* Final checks.  The port status should be clean. */
6163                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6164                                 &reg_data.word0) ||
6165                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6166                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6167                                 phba->work_status[0] =
6168                                         readl(phba->sli4_hba.u.if_type2.
6169                                               ERR1regaddr);
6170                                 phba->work_status[1] =
6171                                         readl(phba->sli4_hba.u.if_type2.
6172                                               ERR2regaddr);
6173                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6174                                         "2888 Unrecoverable port error "
6175                                         "following POST: port status reg "
6176                                         "0x%x, port_smphr reg 0x%x, "
6177                                         "error 1=0x%x, error 2=0x%x\n",
6178                                         reg_data.word0,
6179                                         portsmphr_reg.word0,
6180                                         phba->work_status[0],
6181                                         phba->work_status[1]);
6182                                 port_error = -ENODEV;
6183                         }
6184                         break;
6185                 case LPFC_SLI_INTF_IF_TYPE_1:
6186                 default:
6187                         break;
6188                 }
6189         }
6190         return port_error;
6191 }
6192
6193 /**
6194  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6195  * @phba: pointer to lpfc hba data structure.
6196  * @if_type:  The SLI4 interface type getting configured.
6197  *
6198  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6199  * memory map.
6200  **/
6201 static void
6202 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6203 {
6204         switch (if_type) {
6205         case LPFC_SLI_INTF_IF_TYPE_0:
6206                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6207                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6208                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6209                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6210                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6211                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6212                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6213                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6214                 phba->sli4_hba.SLIINTFregaddr =
6215                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6216                 break;
6217         case LPFC_SLI_INTF_IF_TYPE_2:
6218                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6219                         phba->sli4_hba.conf_regs_memmap_p +
6220                                                 LPFC_CTL_PORT_ER1_OFFSET;
6221                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6222                         phba->sli4_hba.conf_regs_memmap_p +
6223                                                 LPFC_CTL_PORT_ER2_OFFSET;
6224                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6225                         phba->sli4_hba.conf_regs_memmap_p +
6226                                                 LPFC_CTL_PORT_CTL_OFFSET;
6227                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6228                         phba->sli4_hba.conf_regs_memmap_p +
6229                                                 LPFC_CTL_PORT_STA_OFFSET;
6230                 phba->sli4_hba.SLIINTFregaddr =
6231                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6232                 phba->sli4_hba.PSMPHRregaddr =
6233                         phba->sli4_hba.conf_regs_memmap_p +
6234                                                 LPFC_CTL_PORT_SEM_OFFSET;
6235                 phba->sli4_hba.RQDBregaddr =
6236                         phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
6237                 phba->sli4_hba.WQDBregaddr =
6238                         phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
6239                 phba->sli4_hba.EQCQDBregaddr =
6240                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6241                 phba->sli4_hba.MQDBregaddr =
6242                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6243                 phba->sli4_hba.BMBXregaddr =
6244                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6245                 break;
6246         case LPFC_SLI_INTF_IF_TYPE_1:
6247         default:
6248                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6249                            "FATAL - unsupported SLI4 interface type - %d\n",
6250                            if_type);
6251                 break;
6252         }
6253 }
6254
6255 /**
6256  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6257  * @phba: pointer to lpfc hba data structure.
6258  *
6259  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6260  * memory map.
6261  **/
6262 static void
6263 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6264 {
6265         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6266                 LPFC_SLIPORT_IF0_SMPHR;
6267         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6268                 LPFC_HST_ISR0;
6269         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6270                 LPFC_HST_IMR0;
6271         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6272                 LPFC_HST_ISCR0;
6273 }
6274
6275 /**
6276  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6277  * @phba: pointer to lpfc hba data structure.
6278  * @vf: virtual function number
6279  *
6280  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6281  * based on the given viftual function number, @vf.
6282  *
6283  * Return 0 if successful, otherwise -ENODEV.
6284  **/
6285 static int
6286 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6287 {
6288         if (vf > LPFC_VIR_FUNC_MAX)
6289                 return -ENODEV;
6290
6291         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6292                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
6293         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6294                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
6295         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6296                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6297         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6298                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6299         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6300                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6301         return 0;
6302 }
6303
6304 /**
6305  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6306  * @phba: pointer to lpfc hba data structure.
6307  *
6308  * This routine is invoked to create the bootstrap mailbox
6309  * region consistent with the SLI-4 interface spec.  This
6310  * routine allocates all memory necessary to communicate
6311  * mailbox commands to the port and sets up all alignment
6312  * needs.  No locks are expected to be held when calling
6313  * this routine.
6314  *
6315  * Return codes
6316  *      0 - successful
6317  *      -ENOMEM - could not allocated memory.
6318  **/
6319 static int
6320 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6321 {
6322         uint32_t bmbx_size;
6323         struct lpfc_dmabuf *dmabuf;
6324         struct dma_address *dma_address;
6325         uint32_t pa_addr;
6326         uint64_t phys_addr;
6327
6328         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6329         if (!dmabuf)
6330                 return -ENOMEM;
6331
6332         /*
6333          * The bootstrap mailbox region is comprised of 2 parts
6334          * plus an alignment restriction of 16 bytes.
6335          */
6336         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6337         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6338                                           bmbx_size,
6339                                           &dmabuf->phys,
6340                                           GFP_KERNEL);
6341         if (!dmabuf->virt) {
6342                 kfree(dmabuf);
6343                 return -ENOMEM;
6344         }
6345         memset(dmabuf->virt, 0, bmbx_size);
6346
6347         /*
6348          * Initialize the bootstrap mailbox pointers now so that the register
6349          * operations are simple later.  The mailbox dma address is required
6350          * to be 16-byte aligned.  Also align the virtual memory as each
6351          * maibox is copied into the bmbx mailbox region before issuing the
6352          * command to the port.
6353          */
6354         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6355         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6356
6357         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6358                                               LPFC_ALIGN_16_BYTE);
6359         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6360                                               LPFC_ALIGN_16_BYTE);
6361
6362         /*
6363          * Set the high and low physical addresses now.  The SLI4 alignment
6364          * requirement is 16 bytes and the mailbox is posted to the port
6365          * as two 30-bit addresses.  The other data is a bit marking whether
6366          * the 30-bit address is the high or low address.
6367          * Upcast bmbx aphys to 64bits so shift instruction compiles
6368          * clean on 32 bit machines.
6369          */
6370         dma_address = &phba->sli4_hba.bmbx.dma_address;
6371         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6372         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6373         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6374                                            LPFC_BMBX_BIT1_ADDR_HI);
6375
6376         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6377         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6378                                            LPFC_BMBX_BIT1_ADDR_LO);
6379         return 0;
6380 }
6381
6382 /**
6383  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6384  * @phba: pointer to lpfc hba data structure.
6385  *
6386  * This routine is invoked to teardown the bootstrap mailbox
6387  * region and release all host resources. This routine requires
6388  * the caller to ensure all mailbox commands recovered, no
6389  * additional mailbox comands are sent, and interrupts are disabled
6390  * before calling this routine.
6391  *
6392  **/
6393 static void
6394 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6395 {
6396         dma_free_coherent(&phba->pcidev->dev,
6397                           phba->sli4_hba.bmbx.bmbx_size,
6398                           phba->sli4_hba.bmbx.dmabuf->virt,
6399                           phba->sli4_hba.bmbx.dmabuf->phys);
6400
6401         kfree(phba->sli4_hba.bmbx.dmabuf);
6402         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6403 }
6404
6405 /**
6406  * lpfc_sli4_read_config - Get the config parameters.
6407  * @phba: pointer to lpfc hba data structure.
6408  *
6409  * This routine is invoked to read the configuration parameters from the HBA.
6410  * The configuration parameters are used to set the base and maximum values
6411  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6412  * allocation for the port.
6413  *
6414  * Return codes
6415  *      0 - successful
6416  *      -ENOMEM - No available memory
6417  *      -EIO - The mailbox failed to complete successfully.
6418  **/
6419 int
6420 lpfc_sli4_read_config(struct lpfc_hba *phba)
6421 {
6422         LPFC_MBOXQ_t *pmb;
6423         struct lpfc_mbx_read_config *rd_config;
6424         union  lpfc_sli4_cfg_shdr *shdr;
6425         uint32_t shdr_status, shdr_add_status;
6426         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6427         struct lpfc_rsrc_desc_fcfcoe *desc;
6428         char *pdesc_0;
6429         uint32_t desc_count;
6430         int length, i, rc = 0, rc2;
6431
6432         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6433         if (!pmb) {
6434                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6435                                 "2011 Unable to allocate memory for issuing "
6436                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6437                 return -ENOMEM;
6438         }
6439
6440         lpfc_read_config(phba, pmb);
6441
6442         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6443         if (rc != MBX_SUCCESS) {
6444                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6445                         "2012 Mailbox failed , mbxCmd x%x "
6446                         "READ_CONFIG, mbxStatus x%x\n",
6447                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6448                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6449                 rc = -EIO;
6450         } else {
6451                 rd_config = &pmb->u.mqe.un.rd_config;
6452                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6453                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6454                         phba->sli4_hba.lnk_info.lnk_tp =
6455                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6456                         phba->sli4_hba.lnk_info.lnk_no =
6457                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6458                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6459                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6460                                         phba->sli4_hba.lnk_info.lnk_tp,
6461                                         phba->sli4_hba.lnk_info.lnk_no);
6462                 } else
6463                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6464                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6465                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6466                 phba->sli4_hba.extents_in_use =
6467                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6468                 phba->sli4_hba.max_cfg_param.max_xri =
6469                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6470                 phba->sli4_hba.max_cfg_param.xri_base =
6471                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6472                 phba->sli4_hba.max_cfg_param.max_vpi =
6473                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6474                 phba->sli4_hba.max_cfg_param.vpi_base =
6475                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6476                 phba->sli4_hba.max_cfg_param.max_rpi =
6477                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6478                 phba->sli4_hba.max_cfg_param.rpi_base =
6479                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6480                 phba->sli4_hba.max_cfg_param.max_vfi =
6481                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6482                 phba->sli4_hba.max_cfg_param.vfi_base =
6483                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6484                 phba->sli4_hba.max_cfg_param.max_fcfi =
6485                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6486                 phba->sli4_hba.max_cfg_param.max_eq =
6487                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6488                 phba->sli4_hba.max_cfg_param.max_rq =
6489                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6490                 phba->sli4_hba.max_cfg_param.max_wq =
6491                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6492                 phba->sli4_hba.max_cfg_param.max_cq =
6493                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6494                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6495                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6496                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6497                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6498                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6499                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6500                 phba->max_vports = phba->max_vpi;
6501                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6502                                 "2003 cfg params Extents? %d "
6503                                 "XRI(B:%d M:%d), "
6504                                 "VPI(B:%d M:%d) "
6505                                 "VFI(B:%d M:%d) "
6506                                 "RPI(B:%d M:%d) "
6507                                 "FCFI(Count:%d)\n",
6508                                 phba->sli4_hba.extents_in_use,
6509                                 phba->sli4_hba.max_cfg_param.xri_base,
6510                                 phba->sli4_hba.max_cfg_param.max_xri,
6511                                 phba->sli4_hba.max_cfg_param.vpi_base,
6512                                 phba->sli4_hba.max_cfg_param.max_vpi,
6513                                 phba->sli4_hba.max_cfg_param.vfi_base,
6514                                 phba->sli4_hba.max_cfg_param.max_vfi,
6515                                 phba->sli4_hba.max_cfg_param.rpi_base,
6516                                 phba->sli4_hba.max_cfg_param.max_rpi,
6517                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6518         }
6519
6520         if (rc)
6521                 goto read_cfg_out;
6522
6523         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6524         if (phba->cfg_hba_queue_depth >
6525                 (phba->sli4_hba.max_cfg_param.max_xri -
6526                         lpfc_sli4_get_els_iocb_cnt(phba)))
6527                 phba->cfg_hba_queue_depth =
6528                         phba->sli4_hba.max_cfg_param.max_xri -
6529                                 lpfc_sli4_get_els_iocb_cnt(phba);
6530
6531         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6532             LPFC_SLI_INTF_IF_TYPE_2)
6533                 goto read_cfg_out;
6534
6535         /* get the pf# and vf# for SLI4 if_type 2 port */
6536         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6537                   sizeof(struct lpfc_sli4_cfg_mhdr));
6538         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6539                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6540                          length, LPFC_SLI4_MBX_EMBED);
6541
6542         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6543         shdr = (union lpfc_sli4_cfg_shdr *)
6544                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6545         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6546         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6547         if (rc2 || shdr_status || shdr_add_status) {
6548                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6549                                 "3026 Mailbox failed , mbxCmd x%x "
6550                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6551                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6552                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6553                 goto read_cfg_out;
6554         }
6555
6556         /* search for fc_fcoe resrouce descriptor */
6557         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6558         desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6559
6560         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6561         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6562         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6563         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6564                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6565         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6566                 goto read_cfg_out;
6567
6568         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6569                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6570                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6571                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6572                         phba->sli4_hba.iov.pf_number =
6573                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6574                         phba->sli4_hba.iov.vf_number =
6575                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6576                         break;
6577                 }
6578         }
6579
6580         if (i < LPFC_RSRC_DESC_MAX_NUM)
6581                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6582                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6583                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6584                                 phba->sli4_hba.iov.vf_number);
6585         else
6586                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6587                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6588                                 "Resrouce Descriptor:x%x\n",
6589                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6590
6591 read_cfg_out:
6592         mempool_free(pmb, phba->mbox_mem_pool);
6593         return rc;
6594 }
6595
6596 /**
6597  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6598  * @phba: pointer to lpfc hba data structure.
6599  *
6600  * This routine is invoked to setup the port-side endian order when
6601  * the port if_type is 0.  This routine has no function for other
6602  * if_types.
6603  *
6604  * Return codes
6605  *      0 - successful
6606  *      -ENOMEM - No available memory
6607  *      -EIO - The mailbox failed to complete successfully.
6608  **/
6609 static int
6610 lpfc_setup_endian_order(struct lpfc_hba *phba)
6611 {
6612         LPFC_MBOXQ_t *mboxq;
6613         uint32_t if_type, rc = 0;
6614         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6615                                       HOST_ENDIAN_HIGH_WORD1};
6616
6617         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6618         switch (if_type) {
6619         case LPFC_SLI_INTF_IF_TYPE_0:
6620                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6621                                                        GFP_KERNEL);
6622                 if (!mboxq) {
6623                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6624                                         "0492 Unable to allocate memory for "
6625                                         "issuing SLI_CONFIG_SPECIAL mailbox "
6626                                         "command\n");
6627                         return -ENOMEM;
6628                 }
6629
6630                 /*
6631                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6632                  * two words to contain special data values and no other data.
6633                  */
6634                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6635                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6636                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6637                 if (rc != MBX_SUCCESS) {
6638                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6639                                         "0493 SLI_CONFIG_SPECIAL mailbox "
6640                                         "failed with status x%x\n",
6641                                         rc);
6642                         rc = -EIO;
6643                 }
6644                 mempool_free(mboxq, phba->mbox_mem_pool);
6645                 break;
6646         case LPFC_SLI_INTF_IF_TYPE_2:
6647         case LPFC_SLI_INTF_IF_TYPE_1:
6648         default:
6649                 break;
6650         }
6651         return rc;
6652 }
6653
6654 /**
6655  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6656  * @phba: pointer to lpfc hba data structure.
6657  *
6658  * This routine is invoked to check the user settable queue counts for EQs and
6659  * CQs. after this routine is called the counts will be set to valid values that
6660  * adhere to the constraints of the system's interrupt vectors and the port's
6661  * queue resources.
6662  *
6663  * Return codes
6664  *      0 - successful
6665  *      -ENOMEM - No available memory
6666  **/
6667 static int
6668 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6669 {
6670         int cfg_fcp_io_channel;
6671         uint32_t cpu;
6672         uint32_t i = 0;
6673
6674
6675         /*
6676          * Sanity check for configured queue parameters against the run-time
6677          * device parameters
6678          */
6679
6680         /* Sanity check on HBA EQ parameters */
6681         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
6682
6683         /* It doesn't make sense to have more io channels then CPUs */
6684         for_each_online_cpu(cpu) {
6685                 i++;
6686         }
6687         if (i < cfg_fcp_io_channel) {
6688                 lpfc_printf_log(phba,
6689                                 KERN_ERR, LOG_INIT,
6690                                 "3188 Reducing IO channels to match number of "
6691                                 "CPUs: from %d to %d\n", cfg_fcp_io_channel, i);
6692                 cfg_fcp_io_channel = i;
6693         }
6694
6695         if (cfg_fcp_io_channel >
6696             phba->sli4_hba.max_cfg_param.max_eq) {
6697                 if (phba->sli4_hba.max_cfg_param.max_eq <
6698                     LPFC_FCP_IO_CHAN_MIN) {
6699                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6700                                         "2574 Not enough EQs (%d) from the "
6701                                         "pci function for supporting FCP "
6702                                         "EQs (%d)\n",
6703                                         phba->sli4_hba.max_cfg_param.max_eq,
6704                                         phba->cfg_fcp_io_channel);
6705                         goto out_error;
6706                 }
6707                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6708                                 "2575 Reducing IO channels to match number of "
6709                                 "available EQs: from %d to %d\n",
6710                                 cfg_fcp_io_channel,
6711                                 phba->sli4_hba.max_cfg_param.max_eq);
6712                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
6713         }
6714
6715         /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
6716
6717         /* The actual number of FCP event queues adopted */
6718         phba->cfg_fcp_eq_count = cfg_fcp_io_channel;
6719         phba->cfg_fcp_wq_count = cfg_fcp_io_channel;
6720         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
6721
6722         /* Get EQ depth from module parameter, fake the default for now */
6723         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6724         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6725
6726         /* Get CQ depth from module parameter, fake the default for now */
6727         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6728         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6729
6730         return 0;
6731 out_error:
6732         return -ENOMEM;
6733 }
6734
6735 /**
6736  * lpfc_sli4_queue_create - Create all the SLI4 queues
6737  * @phba: pointer to lpfc hba data structure.
6738  *
6739  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6740  * operation. For each SLI4 queue type, the parameters such as queue entry
6741  * count (queue depth) shall be taken from the module parameter. For now,
6742  * we just use some constant number as place holder.
6743  *
6744  * Return codes
6745  *      0 - successful
6746  *      -ENOMEM - No availble memory
6747  *      -EIO - The mailbox failed to complete successfully.
6748  **/
6749 int
6750 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6751 {
6752         struct lpfc_queue *qdesc;
6753         int idx;
6754
6755         /*
6756          * Create HBA Record arrays.
6757          */
6758         if (!phba->cfg_fcp_io_channel)
6759                 return -ERANGE;
6760
6761         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6762         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6763         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6764         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6765         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6766         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6767
6768         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
6769                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6770         if (!phba->sli4_hba.hba_eq) {
6771                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6772                         "2576 Failed allocate memory for "
6773                         "fast-path EQ record array\n");
6774                 goto out_error;
6775         }
6776
6777         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6778                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6779         if (!phba->sli4_hba.fcp_cq) {
6780                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6781                                 "2577 Failed allocate memory for fast-path "
6782                                 "CQ record array\n");
6783                 goto out_error;
6784         }
6785
6786         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6787                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6788         if (!phba->sli4_hba.fcp_wq) {
6789                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6790                                 "2578 Failed allocate memory for fast-path "
6791                                 "WQ record array\n");
6792                 goto out_error;
6793         }
6794
6795         /*
6796          * Since the first EQ can have multiple CQs associated with it,
6797          * this array is used to quickly see if we have a FCP fast-path
6798          * CQ match.
6799          */
6800         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
6801                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
6802         if (!phba->sli4_hba.fcp_cq_map) {
6803                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6804                                 "2545 Failed allocate memory for fast-path "
6805                                 "CQ map\n");
6806                 goto out_error;
6807         }
6808
6809         /*
6810          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
6811          * how many EQs to create.
6812          */
6813         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6814
6815                 /* Create EQs */
6816                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6817                                               phba->sli4_hba.eq_ecount);
6818                 if (!qdesc) {
6819                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6820                                         "0497 Failed allocate EQ (%d)\n", idx);
6821                         goto out_error;
6822                 }
6823                 phba->sli4_hba.hba_eq[idx] = qdesc;
6824
6825                 /* Create Fast Path FCP CQs */
6826                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6827                                               phba->sli4_hba.cq_ecount);
6828                 if (!qdesc) {
6829                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6830                                         "0499 Failed allocate fast-path FCP "
6831                                         "CQ (%d)\n", idx);
6832                         goto out_error;
6833                 }
6834                 phba->sli4_hba.fcp_cq[idx] = qdesc;
6835
6836                 /* Create Fast Path FCP WQs */
6837                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6838                                               phba->sli4_hba.wq_ecount);
6839                 if (!qdesc) {
6840                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6841                                         "0503 Failed allocate fast-path FCP "
6842                                         "WQ (%d)\n", idx);
6843                         goto out_error;
6844                 }
6845                 phba->sli4_hba.fcp_wq[idx] = qdesc;
6846         }
6847
6848
6849         /*
6850          * Create Slow Path Completion Queues (CQs)
6851          */
6852
6853         /* Create slow-path Mailbox Command Complete Queue */
6854         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6855                                       phba->sli4_hba.cq_ecount);
6856         if (!qdesc) {
6857                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6858                                 "0500 Failed allocate slow-path mailbox CQ\n");
6859                 goto out_error;
6860         }
6861         phba->sli4_hba.mbx_cq = qdesc;
6862
6863         /* Create slow-path ELS Complete Queue */
6864         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6865                                       phba->sli4_hba.cq_ecount);
6866         if (!qdesc) {
6867                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6868                                 "0501 Failed allocate slow-path ELS CQ\n");
6869                 goto out_error;
6870         }
6871         phba->sli4_hba.els_cq = qdesc;
6872
6873
6874         /*
6875          * Create Slow Path Work Queues (WQs)
6876          */
6877
6878         /* Create Mailbox Command Queue */
6879
6880         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6881                                       phba->sli4_hba.mq_ecount);
6882         if (!qdesc) {
6883                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6884                                 "0505 Failed allocate slow-path MQ\n");
6885                 goto out_error;
6886         }
6887         phba->sli4_hba.mbx_wq = qdesc;
6888
6889         /*
6890          * Create ELS Work Queues
6891          */
6892
6893         /* Create slow-path ELS Work Queue */
6894         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6895                                       phba->sli4_hba.wq_ecount);
6896         if (!qdesc) {
6897                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6898                                 "0504 Failed allocate slow-path ELS WQ\n");
6899                 goto out_error;
6900         }
6901         phba->sli4_hba.els_wq = qdesc;
6902
6903         /*
6904          * Create Receive Queue (RQ)
6905          */
6906
6907         /* Create Receive Queue for header */
6908         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6909                                       phba->sli4_hba.rq_ecount);
6910         if (!qdesc) {
6911                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6912                                 "0506 Failed allocate receive HRQ\n");
6913                 goto out_error;
6914         }
6915         phba->sli4_hba.hdr_rq = qdesc;
6916
6917         /* Create Receive Queue for data */
6918         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6919                                       phba->sli4_hba.rq_ecount);
6920         if (!qdesc) {
6921                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6922                                 "0507 Failed allocate receive DRQ\n");
6923                 goto out_error;
6924         }
6925         phba->sli4_hba.dat_rq = qdesc;
6926
6927         return 0;
6928
6929 out_error:
6930         lpfc_sli4_queue_destroy(phba);
6931         return -ENOMEM;
6932 }
6933
6934 /**
6935  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6936  * @phba: pointer to lpfc hba data structure.
6937  *
6938  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6939  * operation.
6940  *
6941  * Return codes
6942  *      0 - successful
6943  *      -ENOMEM - No available memory
6944  *      -EIO - The mailbox failed to complete successfully.
6945  **/
6946 void
6947 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6948 {
6949         int idx;
6950
6951         if (phba->sli4_hba.hba_eq != NULL) {
6952                 /* Release HBA event queue */
6953                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6954                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
6955                                 lpfc_sli4_queue_free(
6956                                         phba->sli4_hba.hba_eq[idx]);
6957                                 phba->sli4_hba.hba_eq[idx] = NULL;
6958                         }
6959                 }
6960                 kfree(phba->sli4_hba.hba_eq);
6961                 phba->sli4_hba.hba_eq = NULL;
6962         }
6963
6964         if (phba->sli4_hba.fcp_cq != NULL) {
6965                 /* Release FCP completion queue */
6966                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6967                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
6968                                 lpfc_sli4_queue_free(
6969                                         phba->sli4_hba.fcp_cq[idx]);
6970                                 phba->sli4_hba.fcp_cq[idx] = NULL;
6971                         }
6972                 }
6973                 kfree(phba->sli4_hba.fcp_cq);
6974                 phba->sli4_hba.fcp_cq = NULL;
6975         }
6976
6977         if (phba->sli4_hba.fcp_wq != NULL) {
6978                 /* Release FCP work queue */
6979                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6980                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
6981                                 lpfc_sli4_queue_free(
6982                                         phba->sli4_hba.fcp_wq[idx]);
6983                                 phba->sli4_hba.fcp_wq[idx] = NULL;
6984                         }
6985                 }
6986                 kfree(phba->sli4_hba.fcp_wq);
6987                 phba->sli4_hba.fcp_wq = NULL;
6988         }
6989
6990         /* Release FCP CQ mapping array */
6991         if (phba->sli4_hba.fcp_cq_map != NULL) {
6992                 kfree(phba->sli4_hba.fcp_cq_map);
6993                 phba->sli4_hba.fcp_cq_map = NULL;
6994         }
6995
6996         /* Release mailbox command work queue */
6997         if (phba->sli4_hba.mbx_wq != NULL) {
6998                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6999                 phba->sli4_hba.mbx_wq = NULL;
7000         }
7001
7002         /* Release ELS work queue */
7003         if (phba->sli4_hba.els_wq != NULL) {
7004                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7005                 phba->sli4_hba.els_wq = NULL;
7006         }
7007
7008         /* Release unsolicited receive queue */
7009         if (phba->sli4_hba.hdr_rq != NULL) {
7010                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7011                 phba->sli4_hba.hdr_rq = NULL;
7012         }
7013         if (phba->sli4_hba.dat_rq != NULL) {
7014                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7015                 phba->sli4_hba.dat_rq = NULL;
7016         }
7017
7018         /* Release ELS complete queue */
7019         if (phba->sli4_hba.els_cq != NULL) {
7020                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7021                 phba->sli4_hba.els_cq = NULL;
7022         }
7023
7024         /* Release mailbox command complete queue */
7025         if (phba->sli4_hba.mbx_cq != NULL) {
7026                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7027                 phba->sli4_hba.mbx_cq = NULL;
7028         }
7029
7030         return;
7031 }
7032
7033 /**
7034  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7035  * @phba: pointer to lpfc hba data structure.
7036  *
7037  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7038  * operation.
7039  *
7040  * Return codes
7041  *      0 - successful
7042  *      -ENOMEM - No available memory
7043  *      -EIO - The mailbox failed to complete successfully.
7044  **/
7045 int
7046 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7047 {
7048         struct lpfc_sli *psli = &phba->sli;
7049         struct lpfc_sli_ring *pring;
7050         int rc = -ENOMEM;
7051         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7052         int fcp_cq_index = 0;
7053
7054         /*
7055          * Set up HBA Event Queues (EQs)
7056          */
7057
7058         /* Set up HBA event queue */
7059         if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7060                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7061                                 "3147 Fast-path EQs not allocated\n");
7062                 rc = -ENOMEM;
7063                 goto out_error;
7064         }
7065         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7066                 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7067                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7068                                         "0522 Fast-path EQ (%d) not "
7069                                         "allocated\n", fcp_eqidx);
7070                         rc = -ENOMEM;
7071                         goto out_destroy_hba_eq;
7072                 }
7073                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7074                          (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7075                 if (rc) {
7076                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7077                                         "0523 Failed setup of fast-path EQ "
7078                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
7079                         goto out_destroy_hba_eq;
7080                 }
7081                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7082                                 "2584 HBA EQ setup: "
7083                                 "queue[%d]-id=%d\n", fcp_eqidx,
7084                                 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7085         }
7086
7087         /* Set up fast-path FCP Response Complete Queue */
7088         if (!phba->sli4_hba.fcp_cq) {
7089                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7090                                 "3148 Fast-path FCP CQ array not "
7091                                 "allocated\n");
7092                 rc = -ENOMEM;
7093                 goto out_destroy_hba_eq;
7094         }
7095
7096         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7097                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7098                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7099                                         "0526 Fast-path FCP CQ (%d) not "
7100                                         "allocated\n", fcp_cqidx);
7101                         rc = -ENOMEM;
7102                         goto out_destroy_fcp_cq;
7103                 }
7104                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7105                         phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7106                 if (rc) {
7107                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7108                                         "0527 Failed setup of fast-path FCP "
7109                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
7110                         goto out_destroy_fcp_cq;
7111                 }
7112
7113                 /* Setup fcp_cq_map for fast lookup */
7114                 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7115                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7116
7117                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7118                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
7119                                 "parent seq[%d]-id=%d\n",
7120                                 fcp_cqidx,
7121                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7122                                 fcp_cqidx,
7123                                 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7124         }
7125
7126         /* Set up fast-path FCP Work Queue */
7127         if (!phba->sli4_hba.fcp_wq) {
7128                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7129                                 "3149 Fast-path FCP WQ array not "
7130                                 "allocated\n");
7131                 rc = -ENOMEM;
7132                 goto out_destroy_fcp_cq;
7133         }
7134
7135         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7136                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7137                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7138                                         "0534 Fast-path FCP WQ (%d) not "
7139                                         "allocated\n", fcp_wqidx);
7140                         rc = -ENOMEM;
7141                         goto out_destroy_fcp_wq;
7142                 }
7143                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7144                                     phba->sli4_hba.fcp_cq[fcp_wqidx],
7145                                     LPFC_FCP);
7146                 if (rc) {
7147                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7148                                         "0535 Failed setup of fast-path FCP "
7149                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
7150                         goto out_destroy_fcp_wq;
7151                 }
7152
7153                 /* Bind this WQ to the next FCP ring */
7154                 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7155                 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7156                 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7157
7158                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7159                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7160                                 "parent cq[%d]-id=%d\n",
7161                                 fcp_wqidx,
7162                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7163                                 fcp_cq_index,
7164                                 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7165         }
7166         /*
7167          * Set up Complete Queues (CQs)
7168          */
7169
7170         /* Set up slow-path MBOX Complete Queue as the first CQ */
7171         if (!phba->sli4_hba.mbx_cq) {
7172                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7173                                 "0528 Mailbox CQ not allocated\n");
7174                 rc = -ENOMEM;
7175                 goto out_destroy_fcp_wq;
7176         }
7177         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7178                         phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7179         if (rc) {
7180                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7181                                 "0529 Failed setup of slow-path mailbox CQ: "
7182                                 "rc = 0x%x\n", rc);
7183                 goto out_destroy_fcp_wq;
7184         }
7185         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7186                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7187                         phba->sli4_hba.mbx_cq->queue_id,
7188                         phba->sli4_hba.hba_eq[0]->queue_id);
7189
7190         /* Set up slow-path ELS Complete Queue */
7191         if (!phba->sli4_hba.els_cq) {
7192                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7193                                 "0530 ELS CQ not allocated\n");
7194                 rc = -ENOMEM;
7195                 goto out_destroy_mbx_cq;
7196         }
7197         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7198                         phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7199         if (rc) {
7200                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7201                                 "0531 Failed setup of slow-path ELS CQ: "
7202                                 "rc = 0x%x\n", rc);
7203                 goto out_destroy_mbx_cq;
7204         }
7205         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7206                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7207                         phba->sli4_hba.els_cq->queue_id,
7208                         phba->sli4_hba.hba_eq[0]->queue_id);
7209
7210         /*
7211          * Set up all the Work Queues (WQs)
7212          */
7213
7214         /* Set up Mailbox Command Queue */
7215         if (!phba->sli4_hba.mbx_wq) {
7216                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7217                                 "0538 Slow-path MQ not allocated\n");
7218                 rc = -ENOMEM;
7219                 goto out_destroy_els_cq;
7220         }
7221         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7222                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7223         if (rc) {
7224                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7225                                 "0539 Failed setup of slow-path MQ: "
7226                                 "rc = 0x%x\n", rc);
7227                 goto out_destroy_els_cq;
7228         }
7229         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7230                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7231                         phba->sli4_hba.mbx_wq->queue_id,
7232                         phba->sli4_hba.mbx_cq->queue_id);
7233
7234         /* Set up slow-path ELS Work Queue */
7235         if (!phba->sli4_hba.els_wq) {
7236                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7237                                 "0536 Slow-path ELS WQ not allocated\n");
7238                 rc = -ENOMEM;
7239                 goto out_destroy_mbx_wq;
7240         }
7241         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7242                             phba->sli4_hba.els_cq, LPFC_ELS);
7243         if (rc) {
7244                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7245                                 "0537 Failed setup of slow-path ELS WQ: "
7246                                 "rc = 0x%x\n", rc);
7247                 goto out_destroy_mbx_wq;
7248         }
7249
7250         /* Bind this WQ to the ELS ring */
7251         pring = &psli->ring[LPFC_ELS_RING];
7252         pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7253         phba->sli4_hba.els_cq->pring = pring;
7254
7255         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7256                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7257                         phba->sli4_hba.els_wq->queue_id,
7258                         phba->sli4_hba.els_cq->queue_id);
7259
7260         /*
7261          * Create Receive Queue (RQ)
7262          */
7263         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7264                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7265                                 "0540 Receive Queue not allocated\n");
7266                 rc = -ENOMEM;
7267                 goto out_destroy_els_wq;
7268         }
7269
7270         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7271         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7272
7273         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7274                             phba->sli4_hba.els_cq, LPFC_USOL);
7275         if (rc) {
7276                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7277                                 "0541 Failed setup of Receive Queue: "
7278                                 "rc = 0x%x\n", rc);
7279                 goto out_destroy_fcp_wq;
7280         }
7281
7282         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7283                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7284                         "parent cq-id=%d\n",
7285                         phba->sli4_hba.hdr_rq->queue_id,
7286                         phba->sli4_hba.dat_rq->queue_id,
7287                         phba->sli4_hba.els_cq->queue_id);
7288         return 0;
7289
7290 out_destroy_els_wq:
7291         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7292 out_destroy_mbx_wq:
7293         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7294 out_destroy_els_cq:
7295         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7296 out_destroy_mbx_cq:
7297         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7298 out_destroy_fcp_wq:
7299         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7300                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7301 out_destroy_fcp_cq:
7302         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7303                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7304 out_destroy_hba_eq:
7305         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7306                 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7307 out_error:
7308         return rc;
7309 }
7310
7311 /**
7312  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7313  * @phba: pointer to lpfc hba data structure.
7314  *
7315  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7316  * operation.
7317  *
7318  * Return codes
7319  *      0 - successful
7320  *      -ENOMEM - No available memory
7321  *      -EIO - The mailbox failed to complete successfully.
7322  **/
7323 void
7324 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7325 {
7326         int fcp_qidx;
7327
7328         /* Unset mailbox command work queue */
7329         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7330         /* Unset ELS work queue */
7331         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7332         /* Unset unsolicited receive queue */
7333         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7334         /* Unset FCP work queue */
7335         if (phba->sli4_hba.fcp_wq) {
7336                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7337                      fcp_qidx++)
7338                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7339         }
7340         /* Unset mailbox command complete queue */
7341         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7342         /* Unset ELS complete queue */
7343         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7344         /* Unset FCP response complete queue */
7345         if (phba->sli4_hba.fcp_cq) {
7346                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7347                      fcp_qidx++)
7348                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7349         }
7350         /* Unset fast-path event queue */
7351         if (phba->sli4_hba.hba_eq) {
7352                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7353                      fcp_qidx++)
7354                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7355         }
7356 }
7357
7358 /**
7359  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7360  * @phba: pointer to lpfc hba data structure.
7361  *
7362  * This routine is invoked to allocate and set up a pool of completion queue
7363  * events. The body of the completion queue event is a completion queue entry
7364  * CQE. For now, this pool is used for the interrupt service routine to queue
7365  * the following HBA completion queue events for the worker thread to process:
7366  *   - Mailbox asynchronous events
7367  *   - Receive queue completion unsolicited events
7368  * Later, this can be used for all the slow-path events.
7369  *
7370  * Return codes
7371  *      0 - successful
7372  *      -ENOMEM - No available memory
7373  **/
7374 static int
7375 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7376 {
7377         struct lpfc_cq_event *cq_event;
7378         int i;
7379
7380         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7381                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7382                 if (!cq_event)
7383                         goto out_pool_create_fail;
7384                 list_add_tail(&cq_event->list,
7385                               &phba->sli4_hba.sp_cqe_event_pool);
7386         }
7387         return 0;
7388
7389 out_pool_create_fail:
7390         lpfc_sli4_cq_event_pool_destroy(phba);
7391         return -ENOMEM;
7392 }
7393
7394 /**
7395  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7396  * @phba: pointer to lpfc hba data structure.
7397  *
7398  * This routine is invoked to free the pool of completion queue events at
7399  * driver unload time. Note that, it is the responsibility of the driver
7400  * cleanup routine to free all the outstanding completion-queue events
7401  * allocated from this pool back into the pool before invoking this routine
7402  * to destroy the pool.
7403  **/
7404 static void
7405 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7406 {
7407         struct lpfc_cq_event *cq_event, *next_cq_event;
7408
7409         list_for_each_entry_safe(cq_event, next_cq_event,
7410                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7411                 list_del(&cq_event->list);
7412                 kfree(cq_event);
7413         }
7414 }
7415
7416 /**
7417  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7418  * @phba: pointer to lpfc hba data structure.
7419  *
7420  * This routine is the lock free version of the API invoked to allocate a
7421  * completion-queue event from the free pool.
7422  *
7423  * Return: Pointer to the newly allocated completion-queue event if successful
7424  *         NULL otherwise.
7425  **/
7426 struct lpfc_cq_event *
7427 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7428 {
7429         struct lpfc_cq_event *cq_event = NULL;
7430
7431         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7432                          struct lpfc_cq_event, list);
7433         return cq_event;
7434 }
7435
7436 /**
7437  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7438  * @phba: pointer to lpfc hba data structure.
7439  *
7440  * This routine is the lock version of the API invoked to allocate a
7441  * completion-queue event from the free pool.
7442  *
7443  * Return: Pointer to the newly allocated completion-queue event if successful
7444  *         NULL otherwise.
7445  **/
7446 struct lpfc_cq_event *
7447 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7448 {
7449         struct lpfc_cq_event *cq_event;
7450         unsigned long iflags;
7451
7452         spin_lock_irqsave(&phba->hbalock, iflags);
7453         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7454         spin_unlock_irqrestore(&phba->hbalock, iflags);
7455         return cq_event;
7456 }
7457
7458 /**
7459  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7460  * @phba: pointer to lpfc hba data structure.
7461  * @cq_event: pointer to the completion queue event to be freed.
7462  *
7463  * This routine is the lock free version of the API invoked to release a
7464  * completion-queue event back into the free pool.
7465  **/
7466 void
7467 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7468                              struct lpfc_cq_event *cq_event)
7469 {
7470         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7471 }
7472
7473 /**
7474  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7475  * @phba: pointer to lpfc hba data structure.
7476  * @cq_event: pointer to the completion queue event to be freed.
7477  *
7478  * This routine is the lock version of the API invoked to release a
7479  * completion-queue event back into the free pool.
7480  **/
7481 void
7482 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7483                            struct lpfc_cq_event *cq_event)
7484 {
7485         unsigned long iflags;
7486         spin_lock_irqsave(&phba->hbalock, iflags);
7487         __lpfc_sli4_cq_event_release(phba, cq_event);
7488         spin_unlock_irqrestore(&phba->hbalock, iflags);
7489 }
7490
7491 /**
7492  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7493  * @phba: pointer to lpfc hba data structure.
7494  *
7495  * This routine is to free all the pending completion-queue events to the
7496  * back into the free pool for device reset.
7497  **/
7498 static void
7499 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7500 {
7501         LIST_HEAD(cqelist);
7502         struct lpfc_cq_event *cqe;
7503         unsigned long iflags;
7504
7505         /* Retrieve all the pending WCQEs from pending WCQE lists */
7506         spin_lock_irqsave(&phba->hbalock, iflags);
7507         /* Pending FCP XRI abort events */
7508         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7509                          &cqelist);
7510         /* Pending ELS XRI abort events */
7511         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7512                          &cqelist);
7513         /* Pending asynnc events */
7514         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7515                          &cqelist);
7516         spin_unlock_irqrestore(&phba->hbalock, iflags);
7517
7518         while (!list_empty(&cqelist)) {
7519                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7520                 lpfc_sli4_cq_event_release(phba, cqe);
7521         }
7522 }
7523
7524 /**
7525  * lpfc_pci_function_reset - Reset pci function.
7526  * @phba: pointer to lpfc hba data structure.
7527  *
7528  * This routine is invoked to request a PCI function reset. It will destroys
7529  * all resources assigned to the PCI function which originates this request.
7530  *
7531  * Return codes
7532  *      0 - successful
7533  *      -ENOMEM - No available memory
7534  *      -EIO - The mailbox failed to complete successfully.
7535  **/
7536 int
7537 lpfc_pci_function_reset(struct lpfc_hba *phba)
7538 {
7539         LPFC_MBOXQ_t *mboxq;
7540         uint32_t rc = 0, if_type;
7541         uint32_t shdr_status, shdr_add_status;
7542         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7543         union lpfc_sli4_cfg_shdr *shdr;
7544         struct lpfc_register reg_data;
7545         uint16_t devid;
7546
7547         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7548         switch (if_type) {
7549         case LPFC_SLI_INTF_IF_TYPE_0:
7550                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7551                                                        GFP_KERNEL);
7552                 if (!mboxq) {
7553                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7554                                         "0494 Unable to allocate memory for "
7555                                         "issuing SLI_FUNCTION_RESET mailbox "
7556                                         "command\n");
7557                         return -ENOMEM;
7558                 }
7559
7560                 /* Setup PCI function reset mailbox-ioctl command */
7561                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7562                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7563                                  LPFC_SLI4_MBX_EMBED);
7564                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7565                 shdr = (union lpfc_sli4_cfg_shdr *)
7566                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7567                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7568                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7569                                          &shdr->response);
7570                 if (rc != MBX_TIMEOUT)
7571                         mempool_free(mboxq, phba->mbox_mem_pool);
7572                 if (shdr_status || shdr_add_status || rc) {
7573                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7574                                         "0495 SLI_FUNCTION_RESET mailbox "
7575                                         "failed with status x%x add_status x%x,"
7576                                         " mbx status x%x\n",
7577                                         shdr_status, shdr_add_status, rc);
7578                         rc = -ENXIO;
7579                 }
7580                 break;
7581         case LPFC_SLI_INTF_IF_TYPE_2:
7582                 for (num_resets = 0;
7583                      num_resets < MAX_IF_TYPE_2_RESETS;
7584                      num_resets++) {
7585                         reg_data.word0 = 0;
7586                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
7587                                LPFC_SLIPORT_LITTLE_ENDIAN);
7588                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7589                                LPFC_SLIPORT_INIT_PORT);
7590                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7591                                CTRLregaddr);
7592                         /* flush */
7593                         pci_read_config_word(phba->pcidev,
7594                                              PCI_DEVICE_ID, &devid);
7595                         /*
7596                          * Poll the Port Status Register and wait for RDY for
7597                          * up to 10 seconds.  If the port doesn't respond, treat
7598                          * it as an error.  If the port responds with RN, start
7599                          * the loop again.
7600                          */
7601                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7602                                 msleep(10);
7603                                 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7604                                               STATUSregaddr, &reg_data.word0)) {
7605                                         rc = -ENODEV;
7606                                         goto out;
7607                                 }
7608                                 if (bf_get(lpfc_sliport_status_rn, &reg_data))
7609                                         reset_again++;
7610                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7611                                         break;
7612                         }
7613
7614                         /*
7615                          * If the port responds to the init request with
7616                          * reset needed, delay for a bit and restart the loop.
7617                          */
7618                         if (reset_again && (rdy_chk < 1000)) {
7619                                 msleep(10);
7620                                 reset_again = 0;
7621                                 continue;
7622                         }
7623
7624                         /* Detect any port errors. */
7625                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7626                             (rdy_chk >= 1000)) {
7627                                 phba->work_status[0] = readl(
7628                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
7629                                 phba->work_status[1] = readl(
7630                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
7631                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7632                                         "2890 Port error detected during port "
7633                                         "reset(%d): wait_tmo:%d ms, "
7634                                         "port status reg 0x%x, "
7635                                         "error 1=0x%x, error 2=0x%x\n",
7636                                         num_resets, rdy_chk*10,
7637                                         reg_data.word0,
7638                                         phba->work_status[0],
7639                                         phba->work_status[1]);
7640                                 rc = -ENODEV;
7641                         }
7642
7643                         /*
7644                          * Terminate the outer loop provided the Port indicated
7645                          * ready within 10 seconds.
7646                          */
7647                         if (rdy_chk < 1000)
7648                                 break;
7649                 }
7650                 /* delay driver action following IF_TYPE_2 function reset */
7651                 msleep(100);
7652                 break;
7653         case LPFC_SLI_INTF_IF_TYPE_1:
7654         default:
7655                 break;
7656         }
7657
7658 out:
7659         /* Catch the not-ready port failure after a port reset. */
7660         if (num_resets >= MAX_IF_TYPE_2_RESETS)
7661                 rc = -ENODEV;
7662
7663         return rc;
7664 }
7665
7666 /**
7667  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7668  * @phba: pointer to lpfc hba data structure.
7669  * @cnt: number of nop mailbox commands to send.
7670  *
7671  * This routine is invoked to send a number @cnt of NOP mailbox command and
7672  * wait for each command to complete.
7673  *
7674  * Return: the number of NOP mailbox command completed.
7675  **/
7676 static int
7677 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7678 {
7679         LPFC_MBOXQ_t *mboxq;
7680         int length, cmdsent;
7681         uint32_t mbox_tmo;
7682         uint32_t rc = 0;
7683         uint32_t shdr_status, shdr_add_status;
7684         union lpfc_sli4_cfg_shdr *shdr;
7685
7686         if (cnt == 0) {
7687                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7688                                 "2518 Requested to send 0 NOP mailbox cmd\n");
7689                 return cnt;
7690         }
7691
7692         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7693         if (!mboxq) {
7694                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7695                                 "2519 Unable to allocate memory for issuing "
7696                                 "NOP mailbox command\n");
7697                 return 0;
7698         }
7699
7700         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7701         length = (sizeof(struct lpfc_mbx_nop) -
7702                   sizeof(struct lpfc_sli4_cfg_mhdr));
7703
7704         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7705                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7706                                  LPFC_MBOX_OPCODE_NOP, length,
7707                                  LPFC_SLI4_MBX_EMBED);
7708                 if (!phba->sli4_hba.intr_enable)
7709                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7710                 else {
7711                         mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
7712                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7713                 }
7714                 if (rc == MBX_TIMEOUT)
7715                         break;
7716                 /* Check return status */
7717                 shdr = (union lpfc_sli4_cfg_shdr *)
7718                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7719                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7720                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7721                                          &shdr->response);
7722                 if (shdr_status || shdr_add_status || rc) {
7723                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7724                                         "2520 NOP mailbox command failed "
7725                                         "status x%x add_status x%x mbx "
7726                                         "status x%x\n", shdr_status,
7727                                         shdr_add_status, rc);
7728                         break;
7729                 }
7730         }
7731
7732         if (rc != MBX_TIMEOUT)
7733                 mempool_free(mboxq, phba->mbox_mem_pool);
7734
7735         return cmdsent;
7736 }
7737
7738 /**
7739  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7740  * @phba: pointer to lpfc hba data structure.
7741  *
7742  * This routine is invoked to set up the PCI device memory space for device
7743  * with SLI-4 interface spec.
7744  *
7745  * Return codes
7746  *      0 - successful
7747  *      other values - error
7748  **/
7749 static int
7750 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7751 {
7752         struct pci_dev *pdev;
7753         unsigned long bar0map_len, bar1map_len, bar2map_len;
7754         int error = -ENODEV;
7755         uint32_t if_type;
7756
7757         /* Obtain PCI device reference */
7758         if (!phba->pcidev)
7759                 return error;
7760         else
7761                 pdev = phba->pcidev;
7762
7763         /* Set the device DMA mask size */
7764         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7765          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7766                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7767                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7768                         return error;
7769                 }
7770         }
7771
7772         /*
7773          * The BARs and register set definitions and offset locations are
7774          * dependent on the if_type.
7775          */
7776         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7777                                   &phba->sli4_hba.sli_intf.word0)) {
7778                 return error;
7779         }
7780
7781         /* There is no SLI3 failback for SLI4 devices. */
7782         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7783             LPFC_SLI_INTF_VALID) {
7784                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7785                                 "2894 SLI_INTF reg contents invalid "
7786                                 "sli_intf reg 0x%x\n",
7787                                 phba->sli4_hba.sli_intf.word0);
7788                 return error;
7789         }
7790
7791         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7792         /*
7793          * Get the bus address of SLI4 device Bar regions and the
7794          * number of bytes required by each mapping. The mapping of the
7795          * particular PCI BARs regions is dependent on the type of
7796          * SLI4 device.
7797          */
7798         if (pci_resource_start(pdev, 0)) {
7799                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7800                 bar0map_len = pci_resource_len(pdev, 0);
7801
7802                 /*
7803                  * Map SLI4 PCI Config Space Register base to a kernel virtual
7804                  * addr
7805                  */
7806                 phba->sli4_hba.conf_regs_memmap_p =
7807                         ioremap(phba->pci_bar0_map, bar0map_len);
7808                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7809                         dev_printk(KERN_ERR, &pdev->dev,
7810                                    "ioremap failed for SLI4 PCI config "
7811                                    "registers.\n");
7812                         goto out;
7813                 }
7814                 /* Set up BAR0 PCI config space register memory map */
7815                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7816         } else {
7817                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7818                 bar0map_len = pci_resource_len(pdev, 1);
7819                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7820                         dev_printk(KERN_ERR, &pdev->dev,
7821                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7822                         goto out;
7823                 }
7824                 phba->sli4_hba.conf_regs_memmap_p =
7825                                 ioremap(phba->pci_bar0_map, bar0map_len);
7826                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7827                         dev_printk(KERN_ERR, &pdev->dev,
7828                                 "ioremap failed for SLI4 PCI config "
7829                                 "registers.\n");
7830                                 goto out;
7831                 }
7832                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7833         }
7834
7835         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7836             (pci_resource_start(pdev, 2))) {
7837                 /*
7838                  * Map SLI4 if type 0 HBA Control Register base to a kernel
7839                  * virtual address and setup the registers.
7840                  */
7841                 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7842                 bar1map_len = pci_resource_len(pdev, 2);
7843                 phba->sli4_hba.ctrl_regs_memmap_p =
7844                                 ioremap(phba->pci_bar1_map, bar1map_len);
7845                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7846                         dev_printk(KERN_ERR, &pdev->dev,
7847                            "ioremap failed for SLI4 HBA control registers.\n");
7848                         goto out_iounmap_conf;
7849                 }
7850                 lpfc_sli4_bar1_register_memmap(phba);
7851         }
7852
7853         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7854             (pci_resource_start(pdev, 4))) {
7855                 /*
7856                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7857                  * virtual address and setup the registers.
7858                  */
7859                 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7860                 bar2map_len = pci_resource_len(pdev, 4);
7861                 phba->sli4_hba.drbl_regs_memmap_p =
7862                                 ioremap(phba->pci_bar2_map, bar2map_len);
7863                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7864                         dev_printk(KERN_ERR, &pdev->dev,
7865                            "ioremap failed for SLI4 HBA doorbell registers.\n");
7866                         goto out_iounmap_ctrl;
7867                 }
7868                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7869                 if (error)
7870                         goto out_iounmap_all;
7871         }
7872
7873         return 0;
7874
7875 out_iounmap_all:
7876         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7877 out_iounmap_ctrl:
7878         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7879 out_iounmap_conf:
7880         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7881 out:
7882         return error;
7883 }
7884
7885 /**
7886  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7887  * @phba: pointer to lpfc hba data structure.
7888  *
7889  * This routine is invoked to unset the PCI device memory space for device
7890  * with SLI-4 interface spec.
7891  **/
7892 static void
7893 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7894 {
7895         uint32_t if_type;
7896         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7897
7898         switch (if_type) {
7899         case LPFC_SLI_INTF_IF_TYPE_0:
7900                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7901                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7902                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7903                 break;
7904         case LPFC_SLI_INTF_IF_TYPE_2:
7905                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7906                 break;
7907         case LPFC_SLI_INTF_IF_TYPE_1:
7908         default:
7909                 dev_printk(KERN_ERR, &phba->pcidev->dev,
7910                            "FATAL - unsupported SLI4 interface type - %d\n",
7911                            if_type);
7912                 break;
7913         }
7914 }
7915
7916 /**
7917  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7918  * @phba: pointer to lpfc hba data structure.
7919  *
7920  * This routine is invoked to enable the MSI-X interrupt vectors to device
7921  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7922  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7923  * invoked, enables either all or nothing, depending on the current
7924  * availability of PCI vector resources. The device driver is responsible
7925  * for calling the individual request_irq() to register each MSI-X vector
7926  * with a interrupt handler, which is done in this function. Note that
7927  * later when device is unloading, the driver should always call free_irq()
7928  * on all MSI-X vectors it has done request_irq() on before calling
7929  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7930  * will be left with MSI-X enabled and leaks its vectors.
7931  *
7932  * Return codes
7933  *   0 - successful
7934  *   other values - error
7935  **/
7936 static int
7937 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7938 {
7939         int rc, i;
7940         LPFC_MBOXQ_t *pmb;
7941
7942         /* Set up MSI-X multi-message vectors */
7943         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7944                 phba->msix_entries[i].entry = i;
7945
7946         /* Configure MSI-X capability structure */
7947         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7948                                 ARRAY_SIZE(phba->msix_entries));
7949         if (rc) {
7950                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7951                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
7952                 goto msi_fail_out;
7953         }
7954         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7955                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7956                                 "0477 MSI-X entry[%d]: vector=x%x "
7957                                 "message=%d\n", i,
7958                                 phba->msix_entries[i].vector,
7959                                 phba->msix_entries[i].entry);
7960         /*
7961          * Assign MSI-X vectors to interrupt handlers
7962          */
7963
7964         /* vector-0 is associated to slow-path handler */
7965         rc = request_irq(phba->msix_entries[0].vector,
7966                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7967                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
7968         if (rc) {
7969                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7970                                 "0421 MSI-X slow-path request_irq failed "
7971                                 "(%d)\n", rc);
7972                 goto msi_fail_out;
7973         }
7974
7975         /* vector-1 is associated to fast-path handler */
7976         rc = request_irq(phba->msix_entries[1].vector,
7977                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7978                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
7979
7980         if (rc) {
7981                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7982                                 "0429 MSI-X fast-path request_irq failed "
7983                                 "(%d)\n", rc);
7984                 goto irq_fail_out;
7985         }
7986
7987         /*
7988          * Configure HBA MSI-X attention conditions to messages
7989          */
7990         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7991
7992         if (!pmb) {
7993                 rc = -ENOMEM;
7994                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7995                                 "0474 Unable to allocate memory for issuing "
7996                                 "MBOX_CONFIG_MSI command\n");
7997                 goto mem_fail_out;
7998         }
7999         rc = lpfc_config_msi(phba, pmb);
8000         if (rc)
8001                 goto mbx_fail_out;
8002         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8003         if (rc != MBX_SUCCESS) {
8004                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8005                                 "0351 Config MSI mailbox command failed, "
8006                                 "mbxCmd x%x, mbxStatus x%x\n",
8007                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8008                 goto mbx_fail_out;
8009         }
8010
8011         /* Free memory allocated for mailbox command */
8012         mempool_free(pmb, phba->mbox_mem_pool);
8013         return rc;
8014
8015 mbx_fail_out:
8016         /* Free memory allocated for mailbox command */
8017         mempool_free(pmb, phba->mbox_mem_pool);
8018
8019 mem_fail_out:
8020         /* free the irq already requested */
8021         free_irq(phba->msix_entries[1].vector, phba);
8022
8023 irq_fail_out:
8024         /* free the irq already requested */
8025         free_irq(phba->msix_entries[0].vector, phba);
8026
8027 msi_fail_out:
8028         /* Unconfigure MSI-X capability structure */
8029         pci_disable_msix(phba->pcidev);
8030         return rc;
8031 }
8032
8033 /**
8034  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8035  * @phba: pointer to lpfc hba data structure.
8036  *
8037  * This routine is invoked to release the MSI-X vectors and then disable the
8038  * MSI-X interrupt mode to device with SLI-3 interface spec.
8039  **/
8040 static void
8041 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8042 {
8043         int i;
8044
8045         /* Free up MSI-X multi-message vectors */
8046         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8047                 free_irq(phba->msix_entries[i].vector, phba);
8048         /* Disable MSI-X */
8049         pci_disable_msix(phba->pcidev);
8050
8051         return;
8052 }
8053
8054 /**
8055  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8056  * @phba: pointer to lpfc hba data structure.
8057  *
8058  * This routine is invoked to enable the MSI interrupt mode to device with
8059  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8060  * enable the MSI vector. The device driver is responsible for calling the
8061  * request_irq() to register MSI vector with a interrupt the handler, which
8062  * is done in this function.
8063  *
8064  * Return codes
8065  *      0 - successful
8066  *      other values - error
8067  */
8068 static int
8069 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8070 {
8071         int rc;
8072
8073         rc = pci_enable_msi(phba->pcidev);
8074         if (!rc)
8075                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8076                                 "0462 PCI enable MSI mode success.\n");
8077         else {
8078                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8079                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
8080                 return rc;
8081         }
8082
8083         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8084                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8085         if (rc) {
8086                 pci_disable_msi(phba->pcidev);
8087                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8088                                 "0478 MSI request_irq failed (%d)\n", rc);
8089         }
8090         return rc;
8091 }
8092
8093 /**
8094  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8095  * @phba: pointer to lpfc hba data structure.
8096  *
8097  * This routine is invoked to disable the MSI interrupt mode to device with
8098  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8099  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8100  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8101  * its vector.
8102  */
8103 static void
8104 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8105 {
8106         free_irq(phba->pcidev->irq, phba);
8107         pci_disable_msi(phba->pcidev);
8108         return;
8109 }
8110
8111 /**
8112  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8113  * @phba: pointer to lpfc hba data structure.
8114  *
8115  * This routine is invoked to enable device interrupt and associate driver's
8116  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8117  * spec. Depends on the interrupt mode configured to the driver, the driver
8118  * will try to fallback from the configured interrupt mode to an interrupt
8119  * mode which is supported by the platform, kernel, and device in the order
8120  * of:
8121  * MSI-X -> MSI -> IRQ.
8122  *
8123  * Return codes
8124  *   0 - successful
8125  *   other values - error
8126  **/
8127 static uint32_t
8128 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8129 {
8130         uint32_t intr_mode = LPFC_INTR_ERROR;
8131         int retval;
8132
8133         if (cfg_mode == 2) {
8134                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8135                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8136                 if (!retval) {
8137                         /* Now, try to enable MSI-X interrupt mode */
8138                         retval = lpfc_sli_enable_msix(phba);
8139                         if (!retval) {
8140                                 /* Indicate initialization to MSI-X mode */
8141                                 phba->intr_type = MSIX;
8142                                 intr_mode = 2;
8143                         }
8144                 }
8145         }
8146
8147         /* Fallback to MSI if MSI-X initialization failed */
8148         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8149                 retval = lpfc_sli_enable_msi(phba);
8150                 if (!retval) {
8151                         /* Indicate initialization to MSI mode */
8152                         phba->intr_type = MSI;
8153                         intr_mode = 1;
8154                 }
8155         }
8156
8157         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8158         if (phba->intr_type == NONE) {
8159                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8160                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8161                 if (!retval) {
8162                         /* Indicate initialization to INTx mode */
8163                         phba->intr_type = INTx;
8164                         intr_mode = 0;
8165                 }
8166         }
8167         return intr_mode;
8168 }
8169
8170 /**
8171  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8172  * @phba: pointer to lpfc hba data structure.
8173  *
8174  * This routine is invoked to disable device interrupt and disassociate the
8175  * driver's interrupt handler(s) from interrupt vector(s) to device with
8176  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8177  * release the interrupt vector(s) for the message signaled interrupt.
8178  **/
8179 static void
8180 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8181 {
8182         /* Disable the currently initialized interrupt mode */
8183         if (phba->intr_type == MSIX)
8184                 lpfc_sli_disable_msix(phba);
8185         else if (phba->intr_type == MSI)
8186                 lpfc_sli_disable_msi(phba);
8187         else if (phba->intr_type == INTx)
8188                 free_irq(phba->pcidev->irq, phba);
8189
8190         /* Reset interrupt management states */
8191         phba->intr_type = NONE;
8192         phba->sli.slistat.sli_intr = 0;
8193
8194         return;
8195 }
8196
8197 /**
8198  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8199  * @phba: pointer to lpfc hba data structure.
8200  *
8201  * This routine is invoked to enable the MSI-X interrupt vectors to device
8202  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8203  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8204  * enables either all or nothing, depending on the current availability of
8205  * PCI vector resources. The device driver is responsible for calling the
8206  * individual request_irq() to register each MSI-X vector with a interrupt
8207  * handler, which is done in this function. Note that later when device is
8208  * unloading, the driver should always call free_irq() on all MSI-X vectors
8209  * it has done request_irq() on before calling pci_disable_msix(). Failure
8210  * to do so results in a BUG_ON() and a device will be left with MSI-X
8211  * enabled and leaks its vectors.
8212  *
8213  * Return codes
8214  * 0 - successful
8215  * other values - error
8216  **/
8217 static int
8218 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8219 {
8220         int vectors, rc, index;
8221
8222         /* Set up MSI-X multi-message vectors */
8223         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8224                 phba->sli4_hba.msix_entries[index].entry = index;
8225
8226         /* Configure MSI-X capability structure */
8227         vectors = phba->cfg_fcp_io_channel;
8228 enable_msix_vectors:
8229         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
8230                              vectors);
8231         if (rc > 1) {
8232                 vectors = rc;
8233                 goto enable_msix_vectors;
8234         } else if (rc) {
8235                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8236                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
8237                 goto msi_fail_out;
8238         }
8239
8240         /* Log MSI-X vector assignment */
8241         for (index = 0; index < vectors; index++)
8242                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8243                                 "0489 MSI-X entry[%d]: vector=x%x "
8244                                 "message=%d\n", index,
8245                                 phba->sli4_hba.msix_entries[index].vector,
8246                                 phba->sli4_hba.msix_entries[index].entry);
8247
8248         /*
8249          * Assign MSI-X vectors to interrupt handlers
8250          */
8251         for (index = 0; index < vectors; index++) {
8252                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8253                 sprintf((char *)&phba->sli4_hba.handler_name[index],
8254                          LPFC_DRIVER_HANDLER_NAME"%d", index);
8255
8256                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8257                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8258                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8259                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
8260                                  &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
8261                                  (char *)&phba->sli4_hba.handler_name[index],
8262                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8263                 if (rc) {
8264                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8265                                         "0486 MSI-X fast-path (%d) "
8266                                         "request_irq failed (%d)\n", index, rc);
8267                         goto cfg_fail_out;
8268                 }
8269         }
8270
8271         if (vectors != phba->cfg_fcp_io_channel) {
8272                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8273                                 "3238 Reducing IO channels to match number of "
8274                                 "MSI-X vectors, requested %d got %d\n",
8275                                 phba->cfg_fcp_io_channel, vectors);
8276                 phba->cfg_fcp_io_channel = vectors;
8277         }
8278         return rc;
8279
8280 cfg_fail_out:
8281         /* free the irq already requested */
8282         for (--index; index >= 0; index--)
8283                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8284                          &phba->sli4_hba.fcp_eq_hdl[index]);
8285
8286 msi_fail_out:
8287         /* Unconfigure MSI-X capability structure */
8288         pci_disable_msix(phba->pcidev);
8289         return rc;
8290 }
8291
8292 /**
8293  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8294  * @phba: pointer to lpfc hba data structure.
8295  *
8296  * This routine is invoked to release the MSI-X vectors and then disable the
8297  * MSI-X interrupt mode to device with SLI-4 interface spec.
8298  **/
8299 static void
8300 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8301 {
8302         int index;
8303
8304         /* Free up MSI-X multi-message vectors */
8305         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8306                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8307                          &phba->sli4_hba.fcp_eq_hdl[index]);
8308
8309         /* Disable MSI-X */
8310         pci_disable_msix(phba->pcidev);
8311
8312         return;
8313 }
8314
8315 /**
8316  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8317  * @phba: pointer to lpfc hba data structure.
8318  *
8319  * This routine is invoked to enable the MSI interrupt mode to device with
8320  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8321  * to enable the MSI vector. The device driver is responsible for calling
8322  * the request_irq() to register MSI vector with a interrupt the handler,
8323  * which is done in this function.
8324  *
8325  * Return codes
8326  *      0 - successful
8327  *      other values - error
8328  **/
8329 static int
8330 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8331 {
8332         int rc, index;
8333
8334         rc = pci_enable_msi(phba->pcidev);
8335         if (!rc)
8336                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8337                                 "0487 PCI enable MSI mode success.\n");
8338         else {
8339                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8340                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
8341                 return rc;
8342         }
8343
8344         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8345                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8346         if (rc) {
8347                 pci_disable_msi(phba->pcidev);
8348                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8349                                 "0490 MSI request_irq failed (%d)\n", rc);
8350                 return rc;
8351         }
8352
8353         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8354                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8355                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8356         }
8357
8358         return 0;
8359 }
8360
8361 /**
8362  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8363  * @phba: pointer to lpfc hba data structure.
8364  *
8365  * This routine is invoked to disable the MSI interrupt mode to device with
8366  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8367  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8368  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8369  * its vector.
8370  **/
8371 static void
8372 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8373 {
8374         free_irq(phba->pcidev->irq, phba);
8375         pci_disable_msi(phba->pcidev);
8376         return;
8377 }
8378
8379 /**
8380  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8381  * @phba: pointer to lpfc hba data structure.
8382  *
8383  * This routine is invoked to enable device interrupt and associate driver's
8384  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8385  * interface spec. Depends on the interrupt mode configured to the driver,
8386  * the driver will try to fallback from the configured interrupt mode to an
8387  * interrupt mode which is supported by the platform, kernel, and device in
8388  * the order of:
8389  * MSI-X -> MSI -> IRQ.
8390  *
8391  * Return codes
8392  *      0 - successful
8393  *      other values - error
8394  **/
8395 static uint32_t
8396 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8397 {
8398         uint32_t intr_mode = LPFC_INTR_ERROR;
8399         int retval, index;
8400
8401         if (cfg_mode == 2) {
8402                 /* Preparation before conf_msi mbox cmd */
8403                 retval = 0;
8404                 if (!retval) {
8405                         /* Now, try to enable MSI-X interrupt mode */
8406                         retval = lpfc_sli4_enable_msix(phba);
8407                         if (!retval) {
8408                                 /* Indicate initialization to MSI-X mode */
8409                                 phba->intr_type = MSIX;
8410                                 intr_mode = 2;
8411                         }
8412                 }
8413         }
8414
8415         /* Fallback to MSI if MSI-X initialization failed */
8416         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8417                 retval = lpfc_sli4_enable_msi(phba);
8418                 if (!retval) {
8419                         /* Indicate initialization to MSI mode */
8420                         phba->intr_type = MSI;
8421                         intr_mode = 1;
8422                 }
8423         }
8424
8425         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8426         if (phba->intr_type == NONE) {
8427                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8428                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8429                 if (!retval) {
8430                         /* Indicate initialization to INTx mode */
8431                         phba->intr_type = INTx;
8432                         intr_mode = 0;
8433                         for (index = 0; index < phba->cfg_fcp_io_channel;
8434                              index++) {
8435                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8436                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8437                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
8438                                         fcp_eq_in_use, 1);
8439                         }
8440                 }
8441         }
8442         return intr_mode;
8443 }
8444
8445 /**
8446  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8447  * @phba: pointer to lpfc hba data structure.
8448  *
8449  * This routine is invoked to disable device interrupt and disassociate
8450  * the driver's interrupt handler(s) from interrupt vector(s) to device
8451  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8452  * will release the interrupt vector(s) for the message signaled interrupt.
8453  **/
8454 static void
8455 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
8456 {
8457         /* Disable the currently initialized interrupt mode */
8458         if (phba->intr_type == MSIX)
8459                 lpfc_sli4_disable_msix(phba);
8460         else if (phba->intr_type == MSI)
8461                 lpfc_sli4_disable_msi(phba);
8462         else if (phba->intr_type == INTx)
8463                 free_irq(phba->pcidev->irq, phba);
8464
8465         /* Reset interrupt management states */
8466         phba->intr_type = NONE;
8467         phba->sli.slistat.sli_intr = 0;
8468
8469         return;
8470 }
8471
8472 /**
8473  * lpfc_unset_hba - Unset SLI3 hba device initialization
8474  * @phba: pointer to lpfc hba data structure.
8475  *
8476  * This routine is invoked to unset the HBA device initialization steps to
8477  * a device with SLI-3 interface spec.
8478  **/
8479 static void
8480 lpfc_unset_hba(struct lpfc_hba *phba)
8481 {
8482         struct lpfc_vport *vport = phba->pport;
8483         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
8484
8485         spin_lock_irq(shost->host_lock);
8486         vport->load_flag |= FC_UNLOADING;
8487         spin_unlock_irq(shost->host_lock);
8488
8489         kfree(phba->vpi_bmask);
8490         kfree(phba->vpi_ids);
8491
8492         lpfc_stop_hba_timers(phba);
8493
8494         phba->pport->work_port_events = 0;
8495
8496         lpfc_sli_hba_down(phba);
8497
8498         lpfc_sli_brdrestart(phba);
8499
8500         lpfc_sli_disable_intr(phba);
8501
8502         return;
8503 }
8504
8505 /**
8506  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
8507  * @phba: pointer to lpfc hba data structure.
8508  *
8509  * This routine is invoked to unset the HBA device initialization steps to
8510  * a device with SLI-4 interface spec.
8511  **/
8512 static void
8513 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
8514 {
8515         struct lpfc_vport *vport = phba->pport;
8516         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
8517
8518         spin_lock_irq(shost->host_lock);
8519         vport->load_flag |= FC_UNLOADING;
8520         spin_unlock_irq(shost->host_lock);
8521
8522         phba->pport->work_port_events = 0;
8523
8524         /* Stop the SLI4 device port */
8525         lpfc_stop_port(phba);
8526
8527         lpfc_sli4_disable_intr(phba);
8528
8529         /* Reset SLI4 HBA FCoE function */
8530         lpfc_pci_function_reset(phba);
8531         lpfc_sli4_queue_destroy(phba);
8532
8533         return;
8534 }
8535
8536 /**
8537  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8538  * @phba: Pointer to HBA context object.
8539  *
8540  * This function is called in the SLI4 code path to wait for completion
8541  * of device's XRIs exchange busy. It will check the XRI exchange busy
8542  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8543  * that, it will check the XRI exchange busy on outstanding FCP and ELS
8544  * I/Os every 30 seconds, log error message, and wait forever. Only when
8545  * all XRI exchange busy complete, the driver unload shall proceed with
8546  * invoking the function reset ioctl mailbox command to the CNA and the
8547  * the rest of the driver unload resource release.
8548  **/
8549 static void
8550 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8551 {
8552         int wait_time = 0;
8553         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8554         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8555
8556         while (!fcp_xri_cmpl || !els_xri_cmpl) {
8557                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8558                         if (!fcp_xri_cmpl)
8559                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8560                                                 "2877 FCP XRI exchange busy "
8561                                                 "wait time: %d seconds.\n",
8562                                                 wait_time/1000);
8563                         if (!els_xri_cmpl)
8564                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8565                                                 "2878 ELS XRI exchange busy "
8566                                                 "wait time: %d seconds.\n",
8567                                                 wait_time/1000);
8568                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8569                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8570                 } else {
8571                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8572                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8573                 }
8574                 fcp_xri_cmpl =
8575                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8576                 els_xri_cmpl =
8577                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8578         }
8579 }
8580
8581 /**
8582  * lpfc_sli4_hba_unset - Unset the fcoe hba
8583  * @phba: Pointer to HBA context object.
8584  *
8585  * This function is called in the SLI4 code path to reset the HBA's FCoE
8586  * function. The caller is not required to hold any lock. This routine
8587  * issues PCI function reset mailbox command to reset the FCoE function.
8588  * At the end of the function, it calls lpfc_hba_down_post function to
8589  * free any pending commands.
8590  **/
8591 static void
8592 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8593 {
8594         int wait_cnt = 0;
8595         LPFC_MBOXQ_t *mboxq;
8596         struct pci_dev *pdev = phba->pcidev;
8597
8598         lpfc_stop_hba_timers(phba);
8599         phba->sli4_hba.intr_enable = 0;
8600
8601         /*
8602          * Gracefully wait out the potential current outstanding asynchronous
8603          * mailbox command.
8604          */
8605
8606         /* First, block any pending async mailbox command from posted */
8607         spin_lock_irq(&phba->hbalock);
8608         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8609         spin_unlock_irq(&phba->hbalock);
8610         /* Now, trying to wait it out if we can */
8611         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8612                 msleep(10);
8613                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8614                         break;
8615         }
8616         /* Forcefully release the outstanding mailbox command if timed out */
8617         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8618                 spin_lock_irq(&phba->hbalock);
8619                 mboxq = phba->sli.mbox_active;
8620                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8621                 __lpfc_mbox_cmpl_put(phba, mboxq);
8622                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8623                 phba->sli.mbox_active = NULL;
8624                 spin_unlock_irq(&phba->hbalock);
8625         }
8626
8627         /* Abort all iocbs associated with the hba */
8628         lpfc_sli_hba_iocb_abort(phba);
8629
8630         /* Wait for completion of device XRI exchange busy */
8631         lpfc_sli4_xri_exchange_busy_wait(phba);
8632
8633         /* Disable PCI subsystem interrupt */
8634         lpfc_sli4_disable_intr(phba);
8635
8636         /* Disable SR-IOV if enabled */
8637         if (phba->cfg_sriov_nr_virtfn)
8638                 pci_disable_sriov(pdev);
8639
8640         /* Stop kthread signal shall trigger work_done one more time */
8641         kthread_stop(phba->worker_thread);
8642
8643         /* Reset SLI4 HBA FCoE function */
8644         lpfc_pci_function_reset(phba);
8645         lpfc_sli4_queue_destroy(phba);
8646
8647         /* Stop the SLI4 device port */
8648         phba->pport->work_port_events = 0;
8649 }
8650
8651  /**
8652  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8653  * @phba: Pointer to HBA context object.
8654  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8655  *
8656  * This function is called in the SLI4 code path to read the port's
8657  * sli4 capabilities.
8658  *
8659  * This function may be be called from any context that can block-wait
8660  * for the completion.  The expectation is that this routine is called
8661  * typically from probe_one or from the online routine.
8662  **/
8663 int
8664 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8665 {
8666         int rc;
8667         struct lpfc_mqe *mqe;
8668         struct lpfc_pc_sli4_params *sli4_params;
8669         uint32_t mbox_tmo;
8670
8671         rc = 0;
8672         mqe = &mboxq->u.mqe;
8673
8674         /* Read the port's SLI4 Parameters port capabilities */
8675         lpfc_pc_sli4_params(mboxq);
8676         if (!phba->sli4_hba.intr_enable)
8677                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8678         else {
8679                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8680                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8681         }
8682
8683         if (unlikely(rc))
8684                 return 1;
8685
8686         sli4_params = &phba->sli4_hba.pc_sli4_params;
8687         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8688         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8689         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8690         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8691                                              &mqe->un.sli4_params);
8692         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8693                                              &mqe->un.sli4_params);
8694         sli4_params->proto_types = mqe->un.sli4_params.word3;
8695         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8696         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8697         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8698         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8699         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8700         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8701         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8702         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8703         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8704         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8705         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8706         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8707         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8708         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8709         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8710         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8711         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8712         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8713         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8714         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
8715
8716         /* Make sure that sge_supp_len can be handled by the driver */
8717         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8718                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8719
8720         return rc;
8721 }
8722
8723 /**
8724  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8725  * @phba: Pointer to HBA context object.
8726  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8727  *
8728  * This function is called in the SLI4 code path to read the port's
8729  * sli4 capabilities.
8730  *
8731  * This function may be be called from any context that can block-wait
8732  * for the completion.  The expectation is that this routine is called
8733  * typically from probe_one or from the online routine.
8734  **/
8735 int
8736 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8737 {
8738         int rc;
8739         struct lpfc_mqe *mqe = &mboxq->u.mqe;
8740         struct lpfc_pc_sli4_params *sli4_params;
8741         uint32_t mbox_tmo;
8742         int length;
8743         struct lpfc_sli4_parameters *mbx_sli4_parameters;
8744
8745         /*
8746          * By default, the driver assumes the SLI4 port requires RPI
8747          * header postings.  The SLI4_PARAM response will correct this
8748          * assumption.
8749          */
8750         phba->sli4_hba.rpi_hdrs_in_use = 1;
8751
8752         /* Read the port's SLI4 Config Parameters */
8753         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8754                   sizeof(struct lpfc_sli4_cfg_mhdr));
8755         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8756                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8757                          length, LPFC_SLI4_MBX_EMBED);
8758         if (!phba->sli4_hba.intr_enable)
8759                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8760         else {
8761                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8762                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8763         }
8764         if (unlikely(rc))
8765                 return rc;
8766         sli4_params = &phba->sli4_hba.pc_sli4_params;
8767         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8768         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8769         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8770         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8771         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8772                                              mbx_sli4_parameters);
8773         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8774                                              mbx_sli4_parameters);
8775         if (bf_get(cfg_phwq, mbx_sli4_parameters))
8776                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8777         else
8778                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8779         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8780         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8781         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8782         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8783         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8784         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8785         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8786                                             mbx_sli4_parameters);
8787         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8788                                            mbx_sli4_parameters);
8789         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8790         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
8791
8792         /* Make sure that sge_supp_len can be handled by the driver */
8793         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8794                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8795
8796         return 0;
8797 }
8798
8799 /**
8800  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8801  * @pdev: pointer to PCI device
8802  * @pid: pointer to PCI device identifier
8803  *
8804  * This routine is to be called to attach a device with SLI-3 interface spec
8805  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8806  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8807  * information of the device and driver to see if the driver state that it can
8808  * support this kind of device. If the match is successful, the driver core
8809  * invokes this routine. If this routine determines it can claim the HBA, it
8810  * does all the initialization that it needs to do to handle the HBA properly.
8811  *
8812  * Return code
8813  *      0 - driver can claim the device
8814  *      negative value - driver can not claim the device
8815  **/
8816 static int __devinit
8817 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8818 {
8819         struct lpfc_hba   *phba;
8820         struct lpfc_vport *vport = NULL;
8821         struct Scsi_Host  *shost = NULL;
8822         int error;
8823         uint32_t cfg_mode, intr_mode;
8824
8825         /* Allocate memory for HBA structure */
8826         phba = lpfc_hba_alloc(pdev);
8827         if (!phba)
8828                 return -ENOMEM;
8829
8830         /* Perform generic PCI device enabling operation */
8831         error = lpfc_enable_pci_dev(phba);
8832         if (error)
8833                 goto out_free_phba;
8834
8835         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8836         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8837         if (error)
8838                 goto out_disable_pci_dev;
8839
8840         /* Set up SLI-3 specific device PCI memory space */
8841         error = lpfc_sli_pci_mem_setup(phba);
8842         if (error) {
8843                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8844                                 "1402 Failed to set up pci memory space.\n");
8845                 goto out_disable_pci_dev;
8846         }
8847
8848         /* Set up phase-1 common device driver resources */
8849         error = lpfc_setup_driver_resource_phase1(phba);
8850         if (error) {
8851                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8852                                 "1403 Failed to set up driver resource.\n");
8853                 goto out_unset_pci_mem_s3;
8854         }
8855
8856         /* Set up SLI-3 specific device driver resources */
8857         error = lpfc_sli_driver_resource_setup(phba);
8858         if (error) {
8859                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8860                                 "1404 Failed to set up driver resource.\n");
8861                 goto out_unset_pci_mem_s3;
8862         }
8863
8864         /* Initialize and populate the iocb list per host */
8865         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8866         if (error) {
8867                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8868                                 "1405 Failed to initialize iocb list.\n");
8869                 goto out_unset_driver_resource_s3;
8870         }
8871
8872         /* Set up common device driver resources */
8873         error = lpfc_setup_driver_resource_phase2(phba);
8874         if (error) {
8875                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8876                                 "1406 Failed to set up driver resource.\n");
8877                 goto out_free_iocb_list;
8878         }
8879
8880         /* Get the default values for Model Name and Description */
8881         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
8882
8883         /* Create SCSI host to the physical port */
8884         error = lpfc_create_shost(phba);
8885         if (error) {
8886                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8887                                 "1407 Failed to create scsi host.\n");
8888                 goto out_unset_driver_resource;
8889         }
8890
8891         /* Configure sysfs attributes */
8892         vport = phba->pport;
8893         error = lpfc_alloc_sysfs_attr(vport);
8894         if (error) {
8895                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8896                                 "1476 Failed to allocate sysfs attr\n");
8897                 goto out_destroy_shost;
8898         }
8899
8900         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8901         /* Now, trying to enable interrupt and bring up the device */
8902         cfg_mode = phba->cfg_use_msi;
8903         while (true) {
8904                 /* Put device to a known state before enabling interrupt */
8905                 lpfc_stop_port(phba);
8906                 /* Configure and enable interrupt */
8907                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8908                 if (intr_mode == LPFC_INTR_ERROR) {
8909                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8910                                         "0431 Failed to enable interrupt.\n");
8911                         error = -ENODEV;
8912                         goto out_free_sysfs_attr;
8913                 }
8914                 /* SLI-3 HBA setup */
8915                 if (lpfc_sli_hba_setup(phba)) {
8916                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8917                                         "1477 Failed to set up hba\n");
8918                         error = -ENODEV;
8919                         goto out_remove_device;
8920                 }
8921
8922                 /* Wait 50ms for the interrupts of previous mailbox commands */
8923                 msleep(50);
8924                 /* Check active interrupts on message signaled interrupts */
8925                 if (intr_mode == 0 ||
8926                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8927                         /* Log the current active interrupt mode */
8928                         phba->intr_mode = intr_mode;
8929                         lpfc_log_intr_mode(phba, intr_mode);
8930                         break;
8931                 } else {
8932                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8933                                         "0447 Configure interrupt mode (%d) "
8934                                         "failed active interrupt test.\n",
8935                                         intr_mode);
8936                         /* Disable the current interrupt mode */
8937                         lpfc_sli_disable_intr(phba);
8938                         /* Try next level of interrupt mode */
8939                         cfg_mode = --intr_mode;
8940                 }
8941         }
8942
8943         /* Perform post initialization setup */
8944         lpfc_post_init_setup(phba);
8945
8946         /* Check if there are static vports to be created. */
8947         lpfc_create_static_vport(phba);
8948
8949         return 0;
8950
8951 out_remove_device:
8952         lpfc_unset_hba(phba);
8953 out_free_sysfs_attr:
8954         lpfc_free_sysfs_attr(vport);
8955 out_destroy_shost:
8956         lpfc_destroy_shost(phba);
8957 out_unset_driver_resource:
8958         lpfc_unset_driver_resource_phase2(phba);
8959 out_free_iocb_list:
8960         lpfc_free_iocb_list(phba);
8961 out_unset_driver_resource_s3:
8962         lpfc_sli_driver_resource_unset(phba);
8963 out_unset_pci_mem_s3:
8964         lpfc_sli_pci_mem_unset(phba);
8965 out_disable_pci_dev:
8966         lpfc_disable_pci_dev(phba);
8967         if (shost)
8968                 scsi_host_put(shost);
8969 out_free_phba:
8970         lpfc_hba_free(phba);
8971         return error;
8972 }
8973
8974 /**
8975  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8976  * @pdev: pointer to PCI device
8977  *
8978  * This routine is to be called to disattach a device with SLI-3 interface
8979  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8980  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8981  * device to be removed from the PCI subsystem properly.
8982  **/
8983 static void __devexit
8984 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8985 {
8986         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
8987         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8988         struct lpfc_vport **vports;
8989         struct lpfc_hba   *phba = vport->phba;
8990         int i;
8991         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8992
8993         spin_lock_irq(&phba->hbalock);
8994         vport->load_flag |= FC_UNLOADING;
8995         spin_unlock_irq(&phba->hbalock);
8996
8997         lpfc_free_sysfs_attr(vport);
8998
8999         /* Release all the vports against this physical port */
9000         vports = lpfc_create_vport_work_array(phba);
9001         if (vports != NULL)
9002                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9003                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9004                                 continue;
9005                         fc_vport_terminate(vports[i]->fc_vport);
9006                 }
9007         lpfc_destroy_vport_work_array(phba, vports);
9008
9009         /* Remove FC host and then SCSI host with the physical port */
9010         fc_remove_host(shost);
9011         scsi_remove_host(shost);
9012         lpfc_cleanup(vport);
9013
9014         /*
9015          * Bring down the SLI Layer. This step disable all interrupts,
9016          * clears the rings, discards all mailbox commands, and resets
9017          * the HBA.
9018          */
9019
9020         /* HBA interrupt will be disabled after this call */
9021         lpfc_sli_hba_down(phba);
9022         /* Stop kthread signal shall trigger work_done one more time */
9023         kthread_stop(phba->worker_thread);
9024         /* Final cleanup of txcmplq and reset the HBA */
9025         lpfc_sli_brdrestart(phba);
9026
9027         kfree(phba->vpi_bmask);
9028         kfree(phba->vpi_ids);
9029
9030         lpfc_stop_hba_timers(phba);
9031         spin_lock_irq(&phba->hbalock);
9032         list_del_init(&vport->listentry);
9033         spin_unlock_irq(&phba->hbalock);
9034
9035         lpfc_debugfs_terminate(vport);
9036
9037         /* Disable SR-IOV if enabled */
9038         if (phba->cfg_sriov_nr_virtfn)
9039                 pci_disable_sriov(pdev);
9040
9041         /* Disable interrupt */
9042         lpfc_sli_disable_intr(phba);
9043
9044         pci_set_drvdata(pdev, NULL);
9045         scsi_host_put(shost);
9046
9047         /*
9048          * Call scsi_free before mem_free since scsi bufs are released to their
9049          * corresponding pools here.
9050          */
9051         lpfc_scsi_free(phba);
9052         lpfc_mem_free_all(phba);
9053
9054         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9055                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9056
9057         /* Free resources associated with SLI2 interface */
9058         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9059                           phba->slim2p.virt, phba->slim2p.phys);
9060
9061         /* unmap adapter SLIM and Control Registers */
9062         iounmap(phba->ctrl_regs_memmap_p);
9063         iounmap(phba->slim_memmap_p);
9064
9065         lpfc_hba_free(phba);
9066
9067         pci_release_selected_regions(pdev, bars);
9068         pci_disable_device(pdev);
9069 }
9070
9071 /**
9072  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9073  * @pdev: pointer to PCI device
9074  * @msg: power management message
9075  *
9076  * This routine is to be called from the kernel's PCI subsystem to support
9077  * system Power Management (PM) to device with SLI-3 interface spec. When
9078  * PM invokes this method, it quiesces the device by stopping the driver's
9079  * worker thread for the device, turning off device's interrupt and DMA,
9080  * and bring the device offline. Note that as the driver implements the
9081  * minimum PM requirements to a power-aware driver's PM support for the
9082  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9083  * to the suspend() method call will be treated as SUSPEND and the driver will
9084  * fully reinitialize its device during resume() method call, the driver will
9085  * set device to PCI_D3hot state in PCI config space instead of setting it
9086  * according to the @msg provided by the PM.
9087  *
9088  * Return code
9089  *      0 - driver suspended the device
9090  *      Error otherwise
9091  **/
9092 static int
9093 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9094 {
9095         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9096         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9097
9098         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9099                         "0473 PCI device Power Management suspend.\n");
9100
9101         /* Bring down the device */
9102         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9103         lpfc_offline(phba);
9104         kthread_stop(phba->worker_thread);
9105
9106         /* Disable interrupt from device */
9107         lpfc_sli_disable_intr(phba);
9108
9109         /* Save device state to PCI config space */
9110         pci_save_state(pdev);
9111         pci_set_power_state(pdev, PCI_D3hot);
9112
9113         return 0;
9114 }
9115
9116 /**
9117  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9118  * @pdev: pointer to PCI device
9119  *
9120  * This routine is to be called from the kernel's PCI subsystem to support
9121  * system Power Management (PM) to device with SLI-3 interface spec. When PM
9122  * invokes this method, it restores the device's PCI config space state and
9123  * fully reinitializes the device and brings it online. Note that as the
9124  * driver implements the minimum PM requirements to a power-aware driver's
9125  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9126  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9127  * driver will fully reinitialize its device during resume() method call,
9128  * the device will be set to PCI_D0 directly in PCI config space before
9129  * restoring the state.
9130  *
9131  * Return code
9132  *      0 - driver suspended the device
9133  *      Error otherwise
9134  **/
9135 static int
9136 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9137 {
9138         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9139         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9140         uint32_t intr_mode;
9141         int error;
9142
9143         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9144                         "0452 PCI device Power Management resume.\n");
9145
9146         /* Restore device state from PCI config space */
9147         pci_set_power_state(pdev, PCI_D0);
9148         pci_restore_state(pdev);
9149
9150         /*
9151          * As the new kernel behavior of pci_restore_state() API call clears
9152          * device saved_state flag, need to save the restored state again.
9153          */
9154         pci_save_state(pdev);
9155
9156         if (pdev->is_busmaster)
9157                 pci_set_master(pdev);
9158
9159         /* Startup the kernel thread for this host adapter. */
9160         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9161                                         "lpfc_worker_%d", phba->brd_no);
9162         if (IS_ERR(phba->worker_thread)) {
9163                 error = PTR_ERR(phba->worker_thread);
9164                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9165                                 "0434 PM resume failed to start worker "
9166                                 "thread: error=x%x.\n", error);
9167                 return error;
9168         }
9169
9170         /* Configure and enable interrupt */
9171         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9172         if (intr_mode == LPFC_INTR_ERROR) {
9173                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9174                                 "0430 PM resume Failed to enable interrupt\n");
9175                 return -EIO;
9176         } else
9177                 phba->intr_mode = intr_mode;
9178
9179         /* Restart HBA and bring it online */
9180         lpfc_sli_brdrestart(phba);
9181         lpfc_online(phba);
9182
9183         /* Log the current active interrupt mode */
9184         lpfc_log_intr_mode(phba, phba->intr_mode);
9185
9186         return 0;
9187 }
9188
9189 /**
9190  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9191  * @phba: pointer to lpfc hba data structure.
9192  *
9193  * This routine is called to prepare the SLI3 device for PCI slot recover. It
9194  * aborts all the outstanding SCSI I/Os to the pci device.
9195  **/
9196 static void
9197 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9198 {
9199         struct lpfc_sli *psli = &phba->sli;
9200         struct lpfc_sli_ring  *pring;
9201
9202         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9203                         "2723 PCI channel I/O abort preparing for recovery\n");
9204
9205         /*
9206          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9207          * and let the SCSI mid-layer to retry them to recover.
9208          */
9209         pring = &psli->ring[psli->fcp_ring];
9210         lpfc_sli_abort_iocb_ring(phba, pring);
9211 }
9212
9213 /**
9214  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9215  * @phba: pointer to lpfc hba data structure.
9216  *
9217  * This routine is called to prepare the SLI3 device for PCI slot reset. It
9218  * disables the device interrupt and pci device, and aborts the internal FCP
9219  * pending I/Os.
9220  **/
9221 static void
9222 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9223 {
9224         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9225                         "2710 PCI channel disable preparing for reset\n");
9226
9227         /* Block any management I/Os to the device */
9228         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9229
9230         /* Block all SCSI devices' I/Os on the host */
9231         lpfc_scsi_dev_block(phba);
9232
9233         /* stop all timers */
9234         lpfc_stop_hba_timers(phba);
9235
9236         /* Disable interrupt and pci device */
9237         lpfc_sli_disable_intr(phba);
9238         pci_disable_device(phba->pcidev);
9239
9240         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9241         lpfc_sli_flush_fcp_rings(phba);
9242 }
9243
9244 /**
9245  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9246  * @phba: pointer to lpfc hba data structure.
9247  *
9248  * This routine is called to prepare the SLI3 device for PCI slot permanently
9249  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9250  * pending I/Os.
9251  **/
9252 static void
9253 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9254 {
9255         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9256                         "2711 PCI channel permanent disable for failure\n");
9257         /* Block all SCSI devices' I/Os on the host */
9258         lpfc_scsi_dev_block(phba);
9259
9260         /* stop all timers */
9261         lpfc_stop_hba_timers(phba);
9262
9263         /* Clean up all driver's outstanding SCSI I/Os */
9264         lpfc_sli_flush_fcp_rings(phba);
9265 }
9266
9267 /**
9268  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9269  * @pdev: pointer to PCI device.
9270  * @state: the current PCI connection state.
9271  *
9272  * This routine is called from the PCI subsystem for I/O error handling to
9273  * device with SLI-3 interface spec. This function is called by the PCI
9274  * subsystem after a PCI bus error affecting this device has been detected.
9275  * When this function is invoked, it will need to stop all the I/Os and
9276  * interrupt(s) to the device. Once that is done, it will return
9277  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9278  * as desired.
9279  *
9280  * Return codes
9281  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9282  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9283  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9284  **/
9285 static pci_ers_result_t
9286 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9287 {
9288         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9289         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9290
9291         switch (state) {
9292         case pci_channel_io_normal:
9293                 /* Non-fatal error, prepare for recovery */
9294                 lpfc_sli_prep_dev_for_recover(phba);
9295                 return PCI_ERS_RESULT_CAN_RECOVER;
9296         case pci_channel_io_frozen:
9297                 /* Fatal error, prepare for slot reset */
9298                 lpfc_sli_prep_dev_for_reset(phba);
9299                 return PCI_ERS_RESULT_NEED_RESET;
9300         case pci_channel_io_perm_failure:
9301                 /* Permanent failure, prepare for device down */
9302                 lpfc_sli_prep_dev_for_perm_failure(phba);
9303                 return PCI_ERS_RESULT_DISCONNECT;
9304         default:
9305                 /* Unknown state, prepare and request slot reset */
9306                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9307                                 "0472 Unknown PCI error state: x%x\n", state);
9308                 lpfc_sli_prep_dev_for_reset(phba);
9309                 return PCI_ERS_RESULT_NEED_RESET;
9310         }
9311 }
9312
9313 /**
9314  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9315  * @pdev: pointer to PCI device.
9316  *
9317  * This routine is called from the PCI subsystem for error handling to
9318  * device with SLI-3 interface spec. This is called after PCI bus has been
9319  * reset to restart the PCI card from scratch, as if from a cold-boot.
9320  * During the PCI subsystem error recovery, after driver returns
9321  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9322  * recovery and then call this routine before calling the .resume method
9323  * to recover the device. This function will initialize the HBA device,
9324  * enable the interrupt, but it will just put the HBA to offline state
9325  * without passing any I/O traffic.
9326  *
9327  * Return codes
9328  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9329  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9330  */
9331 static pci_ers_result_t
9332 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9333 {
9334         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9335         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9336         struct lpfc_sli *psli = &phba->sli;
9337         uint32_t intr_mode;
9338
9339         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9340         if (pci_enable_device_mem(pdev)) {
9341                 printk(KERN_ERR "lpfc: Cannot re-enable "
9342                         "PCI device after reset.\n");
9343                 return PCI_ERS_RESULT_DISCONNECT;
9344         }
9345
9346         pci_restore_state(pdev);
9347
9348         /*
9349          * As the new kernel behavior of pci_restore_state() API call clears
9350          * device saved_state flag, need to save the restored state again.
9351          */
9352         pci_save_state(pdev);
9353
9354         if (pdev->is_busmaster)
9355                 pci_set_master(pdev);
9356
9357         spin_lock_irq(&phba->hbalock);
9358         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9359         spin_unlock_irq(&phba->hbalock);
9360
9361         /* Configure and enable interrupt */
9362         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9363         if (intr_mode == LPFC_INTR_ERROR) {
9364                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9365                                 "0427 Cannot re-enable interrupt after "
9366                                 "slot reset.\n");
9367                 return PCI_ERS_RESULT_DISCONNECT;
9368         } else
9369                 phba->intr_mode = intr_mode;
9370
9371         /* Take device offline, it will perform cleanup */
9372         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9373         lpfc_offline(phba);
9374         lpfc_sli_brdrestart(phba);
9375
9376         /* Log the current active interrupt mode */
9377         lpfc_log_intr_mode(phba, phba->intr_mode);
9378
9379         return PCI_ERS_RESULT_RECOVERED;
9380 }
9381
9382 /**
9383  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9384  * @pdev: pointer to PCI device
9385  *
9386  * This routine is called from the PCI subsystem for error handling to device
9387  * with SLI-3 interface spec. It is called when kernel error recovery tells
9388  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9389  * error recovery. After this call, traffic can start to flow from this device
9390  * again.
9391  */
9392 static void
9393 lpfc_io_resume_s3(struct pci_dev *pdev)
9394 {
9395         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9396         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9397
9398         /* Bring device online, it will be no-op for non-fatal error resume */
9399         lpfc_online(phba);
9400
9401         /* Clean up Advanced Error Reporting (AER) if needed */
9402         if (phba->hba_flag & HBA_AER_ENABLED)
9403                 pci_cleanup_aer_uncorrect_error_status(pdev);
9404 }
9405
9406 /**
9407  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9408  * @phba: pointer to lpfc hba data structure.
9409  *
9410  * returns the number of ELS/CT IOCBs to reserve
9411  **/
9412 int
9413 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9414 {
9415         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9416
9417         if (phba->sli_rev == LPFC_SLI_REV4) {
9418                 if (max_xri <= 100)
9419                         return 10;
9420                 else if (max_xri <= 256)
9421                         return 25;
9422                 else if (max_xri <= 512)
9423                         return 50;
9424                 else if (max_xri <= 1024)
9425                         return 100;
9426                 else if (max_xri <= 1536)
9427                         return 150;
9428                 else if (max_xri <= 2048)
9429                         return 200;
9430                 else
9431                         return 250;
9432         } else
9433                 return 0;
9434 }
9435
9436 /**
9437  * lpfc_write_firmware - attempt to write a firmware image to the port
9438  * @fw: pointer to firmware image returned from request_firmware.
9439  * @phba: pointer to lpfc hba data structure.
9440  *
9441  **/
9442 static void
9443 lpfc_write_firmware(const struct firmware *fw, void *context)
9444 {
9445         struct lpfc_hba *phba = (struct lpfc_hba *)context;
9446         char fwrev[FW_REV_STR_SIZE];
9447         struct lpfc_grp_hdr *image;
9448         struct list_head dma_buffer_list;
9449         int i, rc = 0;
9450         struct lpfc_dmabuf *dmabuf, *next;
9451         uint32_t offset = 0, temp_offset = 0;
9452
9453         /* It can be null in no-wait mode, sanity check */
9454         if (!fw) {
9455                 rc = -ENXIO;
9456                 goto out;
9457         }
9458         image = (struct lpfc_grp_hdr *)fw->data;
9459
9460         INIT_LIST_HEAD(&dma_buffer_list);
9461         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
9462             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
9463              LPFC_FILE_TYPE_GROUP) ||
9464             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
9465             (be32_to_cpu(image->size) != fw->size)) {
9466                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9467                                 "3022 Invalid FW image found. "
9468                                 "Magic:%x Type:%x ID:%x\n",
9469                                 be32_to_cpu(image->magic_number),
9470                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
9471                                 bf_get_be32(lpfc_grp_hdr_id, image));
9472                 rc = -EINVAL;
9473                 goto release_out;
9474         }
9475         lpfc_decode_firmware_rev(phba, fwrev, 1);
9476         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
9477                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9478                                 "3023 Updating Firmware, Current Version:%s "
9479                                 "New Version:%s\n",
9480                                 fwrev, image->revision);
9481                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
9482                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
9483                                          GFP_KERNEL);
9484                         if (!dmabuf) {
9485                                 rc = -ENOMEM;
9486                                 goto release_out;
9487                         }
9488                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9489                                                           SLI4_PAGE_SIZE,
9490                                                           &dmabuf->phys,
9491                                                           GFP_KERNEL);
9492                         if (!dmabuf->virt) {
9493                                 kfree(dmabuf);
9494                                 rc = -ENOMEM;
9495                                 goto release_out;
9496                         }
9497                         list_add_tail(&dmabuf->list, &dma_buffer_list);
9498                 }
9499                 while (offset < fw->size) {
9500                         temp_offset = offset;
9501                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
9502                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
9503                                         memcpy(dmabuf->virt,
9504                                                fw->data + temp_offset,
9505                                                fw->size - temp_offset);
9506                                         temp_offset = fw->size;
9507                                         break;
9508                                 }
9509                                 memcpy(dmabuf->virt, fw->data + temp_offset,
9510                                        SLI4_PAGE_SIZE);
9511                                 temp_offset += SLI4_PAGE_SIZE;
9512                         }
9513                         rc = lpfc_wr_object(phba, &dma_buffer_list,
9514                                     (fw->size - offset), &offset);
9515                         if (rc)
9516                                 goto release_out;
9517                 }
9518                 rc = offset;
9519         }
9520
9521 release_out:
9522         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9523                 list_del(&dmabuf->list);
9524                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9525                                   dmabuf->virt, dmabuf->phys);
9526                 kfree(dmabuf);
9527         }
9528         release_firmware(fw);
9529 out:
9530         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9531                         "3024 Firmware update done: %d.\n", rc);
9532         return;
9533 }
9534
9535 /**
9536  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
9537  * @phba: pointer to lpfc hba data structure.
9538  *
9539  * This routine is called to perform Linux generic firmware upgrade on device
9540  * that supports such feature.
9541  **/
9542 int
9543 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
9544 {
9545         uint8_t file_name[ELX_MODEL_NAME_SIZE];
9546         int ret;
9547         const struct firmware *fw;
9548
9549         /* Only supported on SLI4 interface type 2 for now */
9550         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
9551             LPFC_SLI_INTF_IF_TYPE_2)
9552                 return -EPERM;
9553
9554         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
9555
9556         if (fw_upgrade == INT_FW_UPGRADE) {
9557                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
9558                                         file_name, &phba->pcidev->dev,
9559                                         GFP_KERNEL, (void *)phba,
9560                                         lpfc_write_firmware);
9561         } else if (fw_upgrade == RUN_FW_UPGRADE) {
9562                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
9563                 if (!ret)
9564                         lpfc_write_firmware(fw, (void *)phba);
9565         } else {
9566                 ret = -EINVAL;
9567         }
9568
9569         return ret;
9570 }
9571
9572 /**
9573  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9574  * @pdev: pointer to PCI device
9575  * @pid: pointer to PCI device identifier
9576  *
9577  * This routine is called from the kernel's PCI subsystem to device with
9578  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9579  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9580  * information of the device and driver to see if the driver state that it
9581  * can support this kind of device. If the match is successful, the driver
9582  * core invokes this routine. If this routine determines it can claim the HBA,
9583  * it does all the initialization that it needs to do to handle the HBA
9584  * properly.
9585  *
9586  * Return code
9587  *      0 - driver can claim the device
9588  *      negative value - driver can not claim the device
9589  **/
9590 static int __devinit
9591 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9592 {
9593         struct lpfc_hba   *phba;
9594         struct lpfc_vport *vport = NULL;
9595         struct Scsi_Host  *shost = NULL;
9596         int error, ret;
9597         uint32_t cfg_mode, intr_mode;
9598         int mcnt;
9599         int adjusted_fcp_io_channel;
9600
9601         /* Allocate memory for HBA structure */
9602         phba = lpfc_hba_alloc(pdev);
9603         if (!phba)
9604                 return -ENOMEM;
9605
9606         /* Perform generic PCI device enabling operation */
9607         error = lpfc_enable_pci_dev(phba);
9608         if (error)
9609                 goto out_free_phba;
9610
9611         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9612         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9613         if (error)
9614                 goto out_disable_pci_dev;
9615
9616         /* Set up SLI-4 specific device PCI memory space */
9617         error = lpfc_sli4_pci_mem_setup(phba);
9618         if (error) {
9619                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9620                                 "1410 Failed to set up pci memory space.\n");
9621                 goto out_disable_pci_dev;
9622         }
9623
9624         /* Set up phase-1 common device driver resources */
9625         error = lpfc_setup_driver_resource_phase1(phba);
9626         if (error) {
9627                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9628                                 "1411 Failed to set up driver resource.\n");
9629                 goto out_unset_pci_mem_s4;
9630         }
9631
9632         /* Set up SLI-4 Specific device driver resources */
9633         error = lpfc_sli4_driver_resource_setup(phba);
9634         if (error) {
9635                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9636                                 "1412 Failed to set up driver resource.\n");
9637                 goto out_unset_pci_mem_s4;
9638         }
9639
9640         /* Initialize and populate the iocb list per host */
9641
9642         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9643                         "2821 initialize iocb list %d.\n",
9644                         phba->cfg_iocb_cnt*1024);
9645         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9646
9647         if (error) {
9648                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9649                                 "1413 Failed to initialize iocb list.\n");
9650                 goto out_unset_driver_resource_s4;
9651         }
9652
9653         INIT_LIST_HEAD(&phba->active_rrq_list);
9654         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
9655
9656         /* Set up common device driver resources */
9657         error = lpfc_setup_driver_resource_phase2(phba);
9658         if (error) {
9659                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9660                                 "1414 Failed to set up driver resource.\n");
9661                 goto out_free_iocb_list;
9662         }
9663
9664         /* Get the default values for Model Name and Description */
9665         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9666
9667         /* Create SCSI host to the physical port */
9668         error = lpfc_create_shost(phba);
9669         if (error) {
9670                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9671                                 "1415 Failed to create scsi host.\n");
9672                 goto out_unset_driver_resource;
9673         }
9674
9675         /* Configure sysfs attributes */
9676         vport = phba->pport;
9677         error = lpfc_alloc_sysfs_attr(vport);
9678         if (error) {
9679                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9680                                 "1416 Failed to allocate sysfs attr\n");
9681                 goto out_destroy_shost;
9682         }
9683
9684         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9685         /* Now, trying to enable interrupt and bring up the device */
9686         cfg_mode = phba->cfg_use_msi;
9687         while (true) {
9688                 /* Put device to a known state before enabling interrupt */
9689                 lpfc_stop_port(phba);
9690                 /* Configure and enable interrupt */
9691                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
9692                 if (intr_mode == LPFC_INTR_ERROR) {
9693                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9694                                         "0426 Failed to enable interrupt.\n");
9695                         error = -ENODEV;
9696                         goto out_free_sysfs_attr;
9697                 }
9698                 /* Default to single EQ for non-MSI-X */
9699                 if (phba->intr_type != MSIX)
9700                         adjusted_fcp_io_channel = 1;
9701                 else
9702                         adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
9703                 phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
9704                 /* Set up SLI-4 HBA */
9705                 if (lpfc_sli4_hba_setup(phba)) {
9706                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9707                                         "1421 Failed to set up hba\n");
9708                         error = -ENODEV;
9709                         goto out_disable_intr;
9710                 }
9711
9712                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9713                 if (intr_mode != 0)
9714                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9715                                                             LPFC_ACT_INTR_CNT);
9716
9717                 /* Check active interrupts received only for MSI/MSI-X */
9718                 if (intr_mode == 0 ||
9719                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
9720                         /* Log the current active interrupt mode */
9721                         phba->intr_mode = intr_mode;
9722                         lpfc_log_intr_mode(phba, intr_mode);
9723                         break;
9724                 }
9725                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9726                                 "0451 Configure interrupt mode (%d) "
9727                                 "failed active interrupt test.\n",
9728                                 intr_mode);
9729                 /* Unset the previous SLI-4 HBA setup. */
9730                 /*
9731                  * TODO:  Is this operation compatible with IF TYPE 2
9732                  * devices?  All port state is deleted and cleared.
9733                  */
9734                 lpfc_sli4_unset_hba(phba);
9735                 /* Try next level of interrupt mode */
9736                 cfg_mode = --intr_mode;
9737         }
9738
9739         /* Perform post initialization setup */
9740         lpfc_post_init_setup(phba);
9741
9742         /* check for firmware upgrade or downgrade */
9743         if (phba->cfg_request_firmware_upgrade)
9744                 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
9745
9746         /* Check if there are static vports to be created. */
9747         lpfc_create_static_vport(phba);
9748         return 0;
9749
9750 out_disable_intr:
9751         lpfc_sli4_disable_intr(phba);
9752 out_free_sysfs_attr:
9753         lpfc_free_sysfs_attr(vport);
9754 out_destroy_shost:
9755         lpfc_destroy_shost(phba);
9756 out_unset_driver_resource:
9757         lpfc_unset_driver_resource_phase2(phba);
9758 out_free_iocb_list:
9759         lpfc_free_iocb_list(phba);
9760 out_unset_driver_resource_s4:
9761         lpfc_sli4_driver_resource_unset(phba);
9762 out_unset_pci_mem_s4:
9763         lpfc_sli4_pci_mem_unset(phba);
9764 out_disable_pci_dev:
9765         lpfc_disable_pci_dev(phba);
9766         if (shost)
9767                 scsi_host_put(shost);
9768 out_free_phba:
9769         lpfc_hba_free(phba);
9770         return error;
9771 }
9772
9773 /**
9774  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9775  * @pdev: pointer to PCI device
9776  *
9777  * This routine is called from the kernel's PCI subsystem to device with
9778  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9779  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9780  * device to be removed from the PCI subsystem properly.
9781  **/
9782 static void __devexit
9783 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
9784 {
9785         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9786         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9787         struct lpfc_vport **vports;
9788         struct lpfc_hba *phba = vport->phba;
9789         int i;
9790
9791         /* Mark the device unloading flag */
9792         spin_lock_irq(&phba->hbalock);
9793         vport->load_flag |= FC_UNLOADING;
9794         spin_unlock_irq(&phba->hbalock);
9795
9796         /* Free the HBA sysfs attributes */
9797         lpfc_free_sysfs_attr(vport);
9798
9799         /* Release all the vports against this physical port */
9800         vports = lpfc_create_vport_work_array(phba);
9801         if (vports != NULL)
9802                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9803                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9804                                 continue;
9805                         fc_vport_terminate(vports[i]->fc_vport);
9806                 }
9807         lpfc_destroy_vport_work_array(phba, vports);
9808
9809         /* Remove FC host and then SCSI host with the physical port */
9810         fc_remove_host(shost);
9811         scsi_remove_host(shost);
9812
9813         /* Perform cleanup on the physical port */
9814         lpfc_cleanup(vport);
9815
9816         /*
9817          * Bring down the SLI Layer. This step disables all interrupts,
9818          * clears the rings, discards all mailbox commands, and resets
9819          * the HBA FCoE function.
9820          */
9821         lpfc_debugfs_terminate(vport);
9822         lpfc_sli4_hba_unset(phba);
9823
9824         spin_lock_irq(&phba->hbalock);
9825         list_del_init(&vport->listentry);
9826         spin_unlock_irq(&phba->hbalock);
9827
9828         /* Perform scsi free before driver resource_unset since scsi
9829          * buffers are released to their corresponding pools here.
9830          */
9831         lpfc_scsi_free(phba);
9832
9833         lpfc_sli4_driver_resource_unset(phba);
9834
9835         /* Unmap adapter Control and Doorbell registers */
9836         lpfc_sli4_pci_mem_unset(phba);
9837
9838         /* Release PCI resources and disable device's PCI function */
9839         scsi_host_put(shost);
9840         lpfc_disable_pci_dev(phba);
9841
9842         /* Finally, free the driver's device data structure */
9843         lpfc_hba_free(phba);
9844
9845         return;
9846 }
9847
9848 /**
9849  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9850  * @pdev: pointer to PCI device
9851  * @msg: power management message
9852  *
9853  * This routine is called from the kernel's PCI subsystem to support system
9854  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9855  * this method, it quiesces the device by stopping the driver's worker
9856  * thread for the device, turning off device's interrupt and DMA, and bring
9857  * the device offline. Note that as the driver implements the minimum PM
9858  * requirements to a power-aware driver's PM support for suspend/resume -- all
9859  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9860  * method call will be treated as SUSPEND and the driver will fully
9861  * reinitialize its device during resume() method call, the driver will set
9862  * device to PCI_D3hot state in PCI config space instead of setting it
9863  * according to the @msg provided by the PM.
9864  *
9865  * Return code
9866  *      0 - driver suspended the device
9867  *      Error otherwise
9868  **/
9869 static int
9870 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
9871 {
9872         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9873         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9874
9875         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9876                         "2843 PCI device Power Management suspend.\n");
9877
9878         /* Bring down the device */
9879         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9880         lpfc_offline(phba);
9881         kthread_stop(phba->worker_thread);
9882
9883         /* Disable interrupt from device */
9884         lpfc_sli4_disable_intr(phba);
9885         lpfc_sli4_queue_destroy(phba);
9886
9887         /* Save device state to PCI config space */
9888         pci_save_state(pdev);
9889         pci_set_power_state(pdev, PCI_D3hot);
9890
9891         return 0;
9892 }
9893
9894 /**
9895  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9896  * @pdev: pointer to PCI device
9897  *
9898  * This routine is called from the kernel's PCI subsystem to support system
9899  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9900  * this method, it restores the device's PCI config space state and fully
9901  * reinitializes the device and brings it online. Note that as the driver
9902  * implements the minimum PM requirements to a power-aware driver's PM for
9903  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9904  * to the suspend() method call will be treated as SUSPEND and the driver
9905  * will fully reinitialize its device during resume() method call, the device
9906  * will be set to PCI_D0 directly in PCI config space before restoring the
9907  * state.
9908  *
9909  * Return code
9910  *      0 - driver suspended the device
9911  *      Error otherwise
9912  **/
9913 static int
9914 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
9915 {
9916         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9917         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9918         uint32_t intr_mode;
9919         int error;
9920
9921         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9922                         "0292 PCI device Power Management resume.\n");
9923
9924         /* Restore device state from PCI config space */
9925         pci_set_power_state(pdev, PCI_D0);
9926         pci_restore_state(pdev);
9927
9928         /*
9929          * As the new kernel behavior of pci_restore_state() API call clears
9930          * device saved_state flag, need to save the restored state again.
9931          */
9932         pci_save_state(pdev);
9933
9934         if (pdev->is_busmaster)
9935                 pci_set_master(pdev);
9936
9937          /* Startup the kernel thread for this host adapter. */
9938         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9939                                         "lpfc_worker_%d", phba->brd_no);
9940         if (IS_ERR(phba->worker_thread)) {
9941                 error = PTR_ERR(phba->worker_thread);
9942                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9943                                 "0293 PM resume failed to start worker "
9944                                 "thread: error=x%x.\n", error);
9945                 return error;
9946         }
9947
9948         /* Configure and enable interrupt */
9949         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9950         if (intr_mode == LPFC_INTR_ERROR) {
9951                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9952                                 "0294 PM resume Failed to enable interrupt\n");
9953                 return -EIO;
9954         } else
9955                 phba->intr_mode = intr_mode;
9956
9957         /* Restart HBA and bring it online */
9958         lpfc_sli_brdrestart(phba);
9959         lpfc_online(phba);
9960
9961         /* Log the current active interrupt mode */
9962         lpfc_log_intr_mode(phba, phba->intr_mode);
9963
9964         return 0;
9965 }
9966
9967 /**
9968  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9969  * @phba: pointer to lpfc hba data structure.
9970  *
9971  * This routine is called to prepare the SLI4 device for PCI slot recover. It
9972  * aborts all the outstanding SCSI I/Os to the pci device.
9973  **/
9974 static void
9975 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9976 {
9977         struct lpfc_sli *psli = &phba->sli;
9978         struct lpfc_sli_ring  *pring;
9979
9980         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9981                         "2828 PCI channel I/O abort preparing for recovery\n");
9982         /*
9983          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9984          * and let the SCSI mid-layer to retry them to recover.
9985          */
9986         pring = &psli->ring[psli->fcp_ring];
9987         lpfc_sli_abort_iocb_ring(phba, pring);
9988 }
9989
9990 /**
9991  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9992  * @phba: pointer to lpfc hba data structure.
9993  *
9994  * This routine is called to prepare the SLI4 device for PCI slot reset. It
9995  * disables the device interrupt and pci device, and aborts the internal FCP
9996  * pending I/Os.
9997  **/
9998 static void
9999 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10000 {
10001         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10002                         "2826 PCI channel disable preparing for reset\n");
10003
10004         /* Block any management I/Os to the device */
10005         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10006
10007         /* Block all SCSI devices' I/Os on the host */
10008         lpfc_scsi_dev_block(phba);
10009
10010         /* stop all timers */
10011         lpfc_stop_hba_timers(phba);
10012
10013         /* Disable interrupt and pci device */
10014         lpfc_sli4_disable_intr(phba);
10015         lpfc_sli4_queue_destroy(phba);
10016         pci_disable_device(phba->pcidev);
10017
10018         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10019         lpfc_sli_flush_fcp_rings(phba);
10020 }
10021
10022 /**
10023  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10024  * @phba: pointer to lpfc hba data structure.
10025  *
10026  * This routine is called to prepare the SLI4 device for PCI slot permanently
10027  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10028  * pending I/Os.
10029  **/
10030 static void
10031 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10032 {
10033         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10034                         "2827 PCI channel permanent disable for failure\n");
10035
10036         /* Block all SCSI devices' I/Os on the host */
10037         lpfc_scsi_dev_block(phba);
10038
10039         /* stop all timers */
10040         lpfc_stop_hba_timers(phba);
10041
10042         /* Clean up all driver's outstanding SCSI I/Os */
10043         lpfc_sli_flush_fcp_rings(phba);
10044 }
10045
10046 /**
10047  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10048  * @pdev: pointer to PCI device.
10049  * @state: the current PCI connection state.
10050  *
10051  * This routine is called from the PCI subsystem for error handling to device
10052  * with SLI-4 interface spec. This function is called by the PCI subsystem
10053  * after a PCI bus error affecting this device has been detected. When this
10054  * function is invoked, it will need to stop all the I/Os and interrupt(s)
10055  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10056  * for the PCI subsystem to perform proper recovery as desired.
10057  *
10058  * Return codes
10059  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10060  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10061  **/
10062 static pci_ers_result_t
10063 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10064 {
10065         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10066         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10067
10068         switch (state) {
10069         case pci_channel_io_normal:
10070                 /* Non-fatal error, prepare for recovery */
10071                 lpfc_sli4_prep_dev_for_recover(phba);
10072                 return PCI_ERS_RESULT_CAN_RECOVER;
10073         case pci_channel_io_frozen:
10074                 /* Fatal error, prepare for slot reset */
10075                 lpfc_sli4_prep_dev_for_reset(phba);
10076                 return PCI_ERS_RESULT_NEED_RESET;
10077         case pci_channel_io_perm_failure:
10078                 /* Permanent failure, prepare for device down */
10079                 lpfc_sli4_prep_dev_for_perm_failure(phba);
10080                 return PCI_ERS_RESULT_DISCONNECT;
10081         default:
10082                 /* Unknown state, prepare and request slot reset */
10083                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10084                                 "2825 Unknown PCI error state: x%x\n", state);
10085                 lpfc_sli4_prep_dev_for_reset(phba);
10086                 return PCI_ERS_RESULT_NEED_RESET;
10087         }
10088 }
10089
10090 /**
10091  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10092  * @pdev: pointer to PCI device.
10093  *
10094  * This routine is called from the PCI subsystem for error handling to device
10095  * with SLI-4 interface spec. It is called after PCI bus has been reset to
10096  * restart the PCI card from scratch, as if from a cold-boot. During the
10097  * PCI subsystem error recovery, after the driver returns
10098  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10099  * recovery and then call this routine before calling the .resume method to
10100  * recover the device. This function will initialize the HBA device, enable
10101  * the interrupt, but it will just put the HBA to offline state without
10102  * passing any I/O traffic.
10103  *
10104  * Return codes
10105  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10106  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10107  */
10108 static pci_ers_result_t
10109 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10110 {
10111         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10112         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10113         struct lpfc_sli *psli = &phba->sli;
10114         uint32_t intr_mode;
10115
10116         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10117         if (pci_enable_device_mem(pdev)) {
10118                 printk(KERN_ERR "lpfc: Cannot re-enable "
10119                         "PCI device after reset.\n");
10120                 return PCI_ERS_RESULT_DISCONNECT;
10121         }
10122
10123         pci_restore_state(pdev);
10124
10125         /*
10126          * As the new kernel behavior of pci_restore_state() API call clears
10127          * device saved_state flag, need to save the restored state again.
10128          */
10129         pci_save_state(pdev);
10130
10131         if (pdev->is_busmaster)
10132                 pci_set_master(pdev);
10133
10134         spin_lock_irq(&phba->hbalock);
10135         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10136         spin_unlock_irq(&phba->hbalock);
10137
10138         /* Configure and enable interrupt */
10139         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10140         if (intr_mode == LPFC_INTR_ERROR) {
10141                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10142                                 "2824 Cannot re-enable interrupt after "
10143                                 "slot reset.\n");
10144                 return PCI_ERS_RESULT_DISCONNECT;
10145         } else
10146                 phba->intr_mode = intr_mode;
10147
10148         /* Log the current active interrupt mode */
10149         lpfc_log_intr_mode(phba, phba->intr_mode);
10150
10151         return PCI_ERS_RESULT_RECOVERED;
10152 }
10153
10154 /**
10155  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10156  * @pdev: pointer to PCI device
10157  *
10158  * This routine is called from the PCI subsystem for error handling to device
10159  * with SLI-4 interface spec. It is called when kernel error recovery tells
10160  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10161  * error recovery. After this call, traffic can start to flow from this device
10162  * again.
10163  **/
10164 static void
10165 lpfc_io_resume_s4(struct pci_dev *pdev)
10166 {
10167         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10168         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10169
10170         /*
10171          * In case of slot reset, as function reset is performed through
10172          * mailbox command which needs DMA to be enabled, this operation
10173          * has to be moved to the io resume phase. Taking device offline
10174          * will perform the necessary cleanup.
10175          */
10176         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10177                 /* Perform device reset */
10178                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10179                 lpfc_offline(phba);
10180                 lpfc_sli_brdrestart(phba);
10181                 /* Bring the device back online */
10182                 lpfc_online(phba);
10183         }
10184
10185         /* Clean up Advanced Error Reporting (AER) if needed */
10186         if (phba->hba_flag & HBA_AER_ENABLED)
10187                 pci_cleanup_aer_uncorrect_error_status(pdev);
10188 }
10189
10190 /**
10191  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10192  * @pdev: pointer to PCI device
10193  * @pid: pointer to PCI device identifier
10194  *
10195  * This routine is to be registered to the kernel's PCI subsystem. When an
10196  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10197  * at PCI device-specific information of the device and driver to see if the
10198  * driver state that it can support this kind of device. If the match is
10199  * successful, the driver core invokes this routine. This routine dispatches
10200  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10201  * do all the initialization that it needs to do to handle the HBA device
10202  * properly.
10203  *
10204  * Return code
10205  *      0 - driver can claim the device
10206  *      negative value - driver can not claim the device
10207  **/
10208 static int __devinit
10209 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10210 {
10211         int rc;
10212         struct lpfc_sli_intf intf;
10213
10214         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10215                 return -ENODEV;
10216
10217         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10218             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10219                 rc = lpfc_pci_probe_one_s4(pdev, pid);
10220         else
10221                 rc = lpfc_pci_probe_one_s3(pdev, pid);
10222
10223         return rc;
10224 }
10225
10226 /**
10227  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10228  * @pdev: pointer to PCI device
10229  *
10230  * This routine is to be registered to the kernel's PCI subsystem. When an
10231  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10232  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10233  * remove routine, which will perform all the necessary cleanup for the
10234  * device to be removed from the PCI subsystem properly.
10235  **/
10236 static void __devexit
10237 lpfc_pci_remove_one(struct pci_dev *pdev)
10238 {
10239         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10240         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10241
10242         switch (phba->pci_dev_grp) {
10243         case LPFC_PCI_DEV_LP:
10244                 lpfc_pci_remove_one_s3(pdev);
10245                 break;
10246         case LPFC_PCI_DEV_OC:
10247                 lpfc_pci_remove_one_s4(pdev);
10248                 break;
10249         default:
10250                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10251                                 "1424 Invalid PCI device group: 0x%x\n",
10252                                 phba->pci_dev_grp);
10253                 break;
10254         }
10255         return;
10256 }
10257
10258 /**
10259  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10260  * @pdev: pointer to PCI device
10261  * @msg: power management message
10262  *
10263  * This routine is to be registered to the kernel's PCI subsystem to support
10264  * system Power Management (PM). When PM invokes this method, it dispatches
10265  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10266  * suspend the device.
10267  *
10268  * Return code
10269  *      0 - driver suspended the device
10270  *      Error otherwise
10271  **/
10272 static int
10273 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10274 {
10275         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10276         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10277         int rc = -ENODEV;
10278
10279         switch (phba->pci_dev_grp) {
10280         case LPFC_PCI_DEV_LP:
10281                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10282                 break;
10283         case LPFC_PCI_DEV_OC:
10284                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10285                 break;
10286         default:
10287                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10288                                 "1425 Invalid PCI device group: 0x%x\n",
10289                                 phba->pci_dev_grp);
10290                 break;
10291         }
10292         return rc;
10293 }
10294
10295 /**
10296  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10297  * @pdev: pointer to PCI device
10298  *
10299  * This routine is to be registered to the kernel's PCI subsystem to support
10300  * system Power Management (PM). When PM invokes this method, it dispatches
10301  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10302  * resume the device.
10303  *
10304  * Return code
10305  *      0 - driver suspended the device
10306  *      Error otherwise
10307  **/
10308 static int
10309 lpfc_pci_resume_one(struct pci_dev *pdev)
10310 {
10311         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10312         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10313         int rc = -ENODEV;
10314
10315         switch (phba->pci_dev_grp) {
10316         case LPFC_PCI_DEV_LP:
10317                 rc = lpfc_pci_resume_one_s3(pdev);
10318                 break;
10319         case LPFC_PCI_DEV_OC:
10320                 rc = lpfc_pci_resume_one_s4(pdev);
10321                 break;
10322         default:
10323                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10324                                 "1426 Invalid PCI device group: 0x%x\n",
10325                                 phba->pci_dev_grp);
10326                 break;
10327         }
10328         return rc;
10329 }
10330
10331 /**
10332  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10333  * @pdev: pointer to PCI device.
10334  * @state: the current PCI connection state.
10335  *
10336  * This routine is registered to the PCI subsystem for error handling. This
10337  * function is called by the PCI subsystem after a PCI bus error affecting
10338  * this device has been detected. When this routine is invoked, it dispatches
10339  * the action to the proper SLI-3 or SLI-4 device error detected handling
10340  * routine, which will perform the proper error detected operation.
10341  *
10342  * Return codes
10343  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10344  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10345  **/
10346 static pci_ers_result_t
10347 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10348 {
10349         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10350         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10351         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10352
10353         switch (phba->pci_dev_grp) {
10354         case LPFC_PCI_DEV_LP:
10355                 rc = lpfc_io_error_detected_s3(pdev, state);
10356                 break;
10357         case LPFC_PCI_DEV_OC:
10358                 rc = lpfc_io_error_detected_s4(pdev, state);
10359                 break;
10360         default:
10361                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10362                                 "1427 Invalid PCI device group: 0x%x\n",
10363                                 phba->pci_dev_grp);
10364                 break;
10365         }
10366         return rc;
10367 }
10368
10369 /**
10370  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10371  * @pdev: pointer to PCI device.
10372  *
10373  * This routine is registered to the PCI subsystem for error handling. This
10374  * function is called after PCI bus has been reset to restart the PCI card
10375  * from scratch, as if from a cold-boot. When this routine is invoked, it
10376  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10377  * routine, which will perform the proper device reset.
10378  *
10379  * Return codes
10380  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10381  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10382  **/
10383 static pci_ers_result_t
10384 lpfc_io_slot_reset(struct pci_dev *pdev)
10385 {
10386         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10387         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10388         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10389
10390         switch (phba->pci_dev_grp) {
10391         case LPFC_PCI_DEV_LP:
10392                 rc = lpfc_io_slot_reset_s3(pdev);
10393                 break;
10394         case LPFC_PCI_DEV_OC:
10395                 rc = lpfc_io_slot_reset_s4(pdev);
10396                 break;
10397         default:
10398                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10399                                 "1428 Invalid PCI device group: 0x%x\n",
10400                                 phba->pci_dev_grp);
10401                 break;
10402         }
10403         return rc;
10404 }
10405
10406 /**
10407  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10408  * @pdev: pointer to PCI device
10409  *
10410  * This routine is registered to the PCI subsystem for error handling. It
10411  * is called when kernel error recovery tells the lpfc driver that it is
10412  * OK to resume normal PCI operation after PCI bus error recovery. When
10413  * this routine is invoked, it dispatches the action to the proper SLI-3
10414  * or SLI-4 device io_resume routine, which will resume the device operation.
10415  **/
10416 static void
10417 lpfc_io_resume(struct pci_dev *pdev)
10418 {
10419         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10420         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10421
10422         switch (phba->pci_dev_grp) {
10423         case LPFC_PCI_DEV_LP:
10424                 lpfc_io_resume_s3(pdev);
10425                 break;
10426         case LPFC_PCI_DEV_OC:
10427                 lpfc_io_resume_s4(pdev);
10428                 break;
10429         default:
10430                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10431                                 "1429 Invalid PCI device group: 0x%x\n",
10432                                 phba->pci_dev_grp);
10433                 break;
10434         }
10435         return;
10436 }
10437
10438 /**
10439  * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace
10440  * @inode: pointer to the inode representing the lpfcmgmt device
10441  * @filep: pointer to the file representing the open lpfcmgmt device
10442  *
10443  * This routine puts a reference count on the lpfc module whenever the
10444  * character device is opened
10445  **/
10446 static int
10447 lpfc_mgmt_open(struct inode *inode, struct file *filep)
10448 {
10449         try_module_get(THIS_MODULE);
10450         return 0;
10451 }
10452
10453 /**
10454  * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace
10455  * @inode: pointer to the inode representing the lpfcmgmt device
10456  * @filep: pointer to the file representing the open lpfcmgmt device
10457  *
10458  * This routine removes a reference count from the lpfc module when the
10459  * character device is closed
10460  **/
10461 static int
10462 lpfc_mgmt_release(struct inode *inode, struct file *filep)
10463 {
10464         module_put(THIS_MODULE);
10465         return 0;
10466 }
10467
10468 static struct pci_device_id lpfc_id_table[] = {
10469         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
10470                 PCI_ANY_ID, PCI_ANY_ID, },
10471         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
10472                 PCI_ANY_ID, PCI_ANY_ID, },
10473         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
10474                 PCI_ANY_ID, PCI_ANY_ID, },
10475         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
10476                 PCI_ANY_ID, PCI_ANY_ID, },
10477         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
10478                 PCI_ANY_ID, PCI_ANY_ID, },
10479         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
10480                 PCI_ANY_ID, PCI_ANY_ID, },
10481         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
10482                 PCI_ANY_ID, PCI_ANY_ID, },
10483         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
10484                 PCI_ANY_ID, PCI_ANY_ID, },
10485         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
10486                 PCI_ANY_ID, PCI_ANY_ID, },
10487         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
10488                 PCI_ANY_ID, PCI_ANY_ID, },
10489         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
10490                 PCI_ANY_ID, PCI_ANY_ID, },
10491         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
10492                 PCI_ANY_ID, PCI_ANY_ID, },
10493         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
10494                 PCI_ANY_ID, PCI_ANY_ID, },
10495         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
10496                 PCI_ANY_ID, PCI_ANY_ID, },
10497         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
10498                 PCI_ANY_ID, PCI_ANY_ID, },
10499         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
10500                 PCI_ANY_ID, PCI_ANY_ID, },
10501         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
10502                 PCI_ANY_ID, PCI_ANY_ID, },
10503         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
10504                 PCI_ANY_ID, PCI_ANY_ID, },
10505         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
10506                 PCI_ANY_ID, PCI_ANY_ID, },
10507         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
10508                 PCI_ANY_ID, PCI_ANY_ID, },
10509         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
10510                 PCI_ANY_ID, PCI_ANY_ID, },
10511         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
10512                 PCI_ANY_ID, PCI_ANY_ID, },
10513         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
10514                 PCI_ANY_ID, PCI_ANY_ID, },
10515         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
10516                 PCI_ANY_ID, PCI_ANY_ID, },
10517         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
10518                 PCI_ANY_ID, PCI_ANY_ID, },
10519         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
10520                 PCI_ANY_ID, PCI_ANY_ID, },
10521         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
10522                 PCI_ANY_ID, PCI_ANY_ID, },
10523         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
10524                 PCI_ANY_ID, PCI_ANY_ID, },
10525         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
10526                 PCI_ANY_ID, PCI_ANY_ID, },
10527         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
10528                 PCI_ANY_ID, PCI_ANY_ID, },
10529         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
10530                 PCI_ANY_ID, PCI_ANY_ID, },
10531         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
10532                 PCI_ANY_ID, PCI_ANY_ID, },
10533         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
10534                 PCI_ANY_ID, PCI_ANY_ID, },
10535         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
10536                 PCI_ANY_ID, PCI_ANY_ID, },
10537         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
10538                 PCI_ANY_ID, PCI_ANY_ID, },
10539         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
10540                 PCI_ANY_ID, PCI_ANY_ID, },
10541         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
10542                 PCI_ANY_ID, PCI_ANY_ID, },
10543         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
10544                 PCI_ANY_ID, PCI_ANY_ID, },
10545         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
10546                 PCI_ANY_ID, PCI_ANY_ID, },
10547         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
10548                 PCI_ANY_ID, PCI_ANY_ID, },
10549         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
10550                 PCI_ANY_ID, PCI_ANY_ID, },
10551         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
10552                 PCI_ANY_ID, PCI_ANY_ID, },
10553         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
10554                 PCI_ANY_ID, PCI_ANY_ID, },
10555         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
10556                 PCI_ANY_ID, PCI_ANY_ID, },
10557         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
10558                 PCI_ANY_ID, PCI_ANY_ID, },
10559         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
10560                 PCI_ANY_ID, PCI_ANY_ID, },
10561         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
10562                 PCI_ANY_ID, PCI_ANY_ID, },
10563         { 0 }
10564 };
10565
10566 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
10567
10568 static const struct pci_error_handlers lpfc_err_handler = {
10569         .error_detected = lpfc_io_error_detected,
10570         .slot_reset = lpfc_io_slot_reset,
10571         .resume = lpfc_io_resume,
10572 };
10573
10574 static struct pci_driver lpfc_driver = {
10575         .name           = LPFC_DRIVER_NAME,
10576         .id_table       = lpfc_id_table,
10577         .probe          = lpfc_pci_probe_one,
10578         .remove         = __devexit_p(lpfc_pci_remove_one),
10579         .suspend        = lpfc_pci_suspend_one,
10580         .resume         = lpfc_pci_resume_one,
10581         .err_handler    = &lpfc_err_handler,
10582 };
10583
10584 static const struct file_operations lpfc_mgmt_fop = {
10585         .open = lpfc_mgmt_open,
10586         .release = lpfc_mgmt_release,
10587 };
10588
10589 static struct miscdevice lpfc_mgmt_dev = {
10590         .minor = MISC_DYNAMIC_MINOR,
10591         .name = "lpfcmgmt",
10592         .fops = &lpfc_mgmt_fop,
10593 };
10594
10595 /**
10596  * lpfc_init - lpfc module initialization routine
10597  *
10598  * This routine is to be invoked when the lpfc module is loaded into the
10599  * kernel. The special kernel macro module_init() is used to indicate the
10600  * role of this routine to the kernel as lpfc module entry point.
10601  *
10602  * Return codes
10603  *   0 - successful
10604  *   -ENOMEM - FC attach transport failed
10605  *   all others - failed
10606  */
10607 static int __init
10608 lpfc_init(void)
10609 {
10610         int error = 0;
10611
10612         printk(LPFC_MODULE_DESC "\n");
10613         printk(LPFC_COPYRIGHT "\n");
10614
10615         error = misc_register(&lpfc_mgmt_dev);
10616         if (error)
10617                 printk(KERN_ERR "Could not register lpfcmgmt device, "
10618                         "misc_register returned with status %d", error);
10619
10620         if (lpfc_enable_npiv) {
10621                 lpfc_transport_functions.vport_create = lpfc_vport_create;
10622                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10623         }
10624         lpfc_transport_template =
10625                                 fc_attach_transport(&lpfc_transport_functions);
10626         if (lpfc_transport_template == NULL)
10627                 return -ENOMEM;
10628         if (lpfc_enable_npiv) {
10629                 lpfc_vport_transport_template =
10630                         fc_attach_transport(&lpfc_vport_transport_functions);
10631                 if (lpfc_vport_transport_template == NULL) {
10632                         fc_release_transport(lpfc_transport_template);
10633                         return -ENOMEM;
10634                 }
10635         }
10636         error = pci_register_driver(&lpfc_driver);
10637         if (error) {
10638                 fc_release_transport(lpfc_transport_template);
10639                 if (lpfc_enable_npiv)
10640                         fc_release_transport(lpfc_vport_transport_template);
10641         }
10642
10643         return error;
10644 }
10645
10646 /**
10647  * lpfc_exit - lpfc module removal routine
10648  *
10649  * This routine is invoked when the lpfc module is removed from the kernel.
10650  * The special kernel macro module_exit() is used to indicate the role of
10651  * this routine to the kernel as lpfc module exit point.
10652  */
10653 static void __exit
10654 lpfc_exit(void)
10655 {
10656         misc_deregister(&lpfc_mgmt_dev);
10657         pci_unregister_driver(&lpfc_driver);
10658         fc_release_transport(lpfc_transport_template);
10659         if (lpfc_enable_npiv)
10660                 fc_release_transport(lpfc_vport_transport_template);
10661         if (_dump_buf_data) {
10662                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10663                                 "_dump_buf_data at 0x%p\n",
10664                                 (1L << _dump_buf_data_order), _dump_buf_data);
10665                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10666         }
10667
10668         if (_dump_buf_dif) {
10669                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10670                                 "_dump_buf_dif at 0x%p\n",
10671                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
10672                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10673         }
10674 }
10675
10676 module_init(lpfc_init);
10677 module_exit(lpfc_exit);
10678 MODULE_LICENSE("GPL");
10679 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
10680 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10681 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);