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) 2004-2013 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 #include <linux/percpu.h>
  37
  38 #include <scsi/scsi.h>
  39 #include <scsi/scsi_device.h>
  40 #include <scsi/scsi_host.h>
  41 #include <scsi/scsi_transport_fc.h>
  42
  43 #include "lpfc_hw4.h"
  44 #include "lpfc_hw.h"
  45 #include "lpfc_sli.h"
  46 #include "lpfc_sli4.h"
  47 #include "lpfc_nl.h"
  48 #include "lpfc_disc.h"
  49 #include "lpfc_scsi.h"
  50 #include "lpfc.h"
  51 #include "lpfc_logmsg.h"
  52 #include "lpfc_crtn.h"
  53 #include "lpfc_vport.h"
  54 #include "lpfc_version.h"
  55
  56 char *_dump_buf_data;
  57 unsigned long _dump_buf_data_order;
  58 char *_dump_buf_dif;
  59 unsigned long _dump_buf_dif_order;
  60 spinlock_t _dump_buf_lock;
  61
  62 /* Used when mapping IRQ vectors in a driver centric manner */
  63 uint16_t *lpfc_used_cpu;
  64 uint32_t lpfc_present_cpu;
  65
  66 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  67 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  68 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  69 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  70 static int lpfc_setup_endian_order(struct lpfc_hba *);
  71 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  72 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  73 static void lpfc_init_sgl_list(struct lpfc_hba *);
  74 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  75 static void lpfc_free_active_sgl(struct lpfc_hba *);
  76 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  77 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  78 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  79 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  80 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  81 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  82 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  83
  84 static struct scsi_transport_template *lpfc_transport_template = NULL;
  85 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  86 static DEFINE_IDR(lpfc_hba_index);
  87
  88 /**
  89  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  90  * @phba: pointer to lpfc hba data structure.
  91  *
  92  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  93  * mailbox command. It retrieves the revision information from the HBA and
  94  * collects the Vital Product Data (VPD) about the HBA for preparing the
  95  * configuration of the HBA.
  96  *
  97  * Return codes:
  98  *   0 - success.
  99  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 100  *   Any other value - indicates an error.
 101  **/
 102 int
 103 lpfc_config_port_prep(struct lpfc_hba *phba)
 104 {
 105         lpfc_vpd_t *vp = &phba->vpd;
 106         int i = 0, rc;
 107         LPFC_MBOXQ_t *pmb;
 108         MAILBOX_t *mb;
 109         char *lpfc_vpd_data = NULL;
 110         uint16_t offset = 0;
 111         static char licensed[56] =
 112                     "key unlock for use with gnu public licensed code only\0";
 113         static int init_key = 1;
 114
 115         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 116         if (!pmb) {
 117                 phba->link_state = LPFC_HBA_ERROR;
 118                 return -ENOMEM;
 119         }
 120
 121         mb = &pmb->u.mb;
 122         phba->link_state = LPFC_INIT_MBX_CMDS;
 123
 124         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 125                 if (init_key) {
 126                         uint32_t *ptext = (uint32_t *) licensed;
 127
 128                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 129                                 *ptext = cpu_to_be32(*ptext);
 130                         init_key = 0;
 131                 }
 132
 133                 lpfc_read_nv(phba, pmb);
 134                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 135                         sizeof (mb->un.varRDnvp.rsvd3));
 136                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 137                          sizeof (licensed));
 138
 139                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 140
 141                 if (rc != MBX_SUCCESS) {
 142                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 143                                         "0324 Config Port initialization "
 144                                         "error, mbxCmd x%x READ_NVPARM, "
 145                                         "mbxStatus x%x\n",
 146                                         mb->mbxCommand, mb->mbxStatus);
 147                         mempool_free(pmb, phba->mbox_mem_pool);
 148                         return -ERESTART;
 149                 }
 150                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 151                        sizeof(phba->wwnn));
 152                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 153                        sizeof(phba->wwpn));
 154         }
 155
 156         phba->sli3_options = 0x0;
 157
 158         /* Setup and issue mailbox READ REV command */
 159         lpfc_read_rev(phba, pmb);
 160         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 161         if (rc != MBX_SUCCESS) {
 162                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 163                                 "0439 Adapter failed to init, mbxCmd x%x "
 164                                 "READ_REV, mbxStatus x%x\n",
 165                                 mb->mbxCommand, mb->mbxStatus);
 166                 mempool_free( pmb, phba->mbox_mem_pool);
 167                 return -ERESTART;
 168         }
 169
 170
 171         /*
 172          * The value of rr must be 1 since the driver set the cv field to 1.
 173          * This setting requires the FW to set all revision fields.
 174          */
 175         if (mb->un.varRdRev.rr == 0) {
 176                 vp->rev.rBit = 0;
 177                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 178                                 "0440 Adapter failed to init, READ_REV has "
 179                                 "missing revision information.\n");
 180                 mempool_free(pmb, phba->mbox_mem_pool);
 181                 return -ERESTART;
 182         }
 183
 184         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 185                 mempool_free(pmb, phba->mbox_mem_pool);
 186                 return -EINVAL;
 187         }
 188
 189         /* Save information as VPD data */
 190         vp->rev.rBit = 1;
 191         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 192         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 193         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 194         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 195         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 196         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 197         vp->rev.smRev = mb->un.varRdRev.smRev;
 198         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 199         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 200         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 201         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 202         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 203         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 204         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 205         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 206
 207         /* If the sli feature level is less then 9, we must
 208          * tear down all RPIs and VPIs on link down if NPIV
 209          * is enabled.
 210          */
 211         if (vp->rev.feaLevelHigh < 9)
 212                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 213
 214         if (lpfc_is_LC_HBA(phba->pcidev->device))
 215                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 216                                                 sizeof (phba->RandomData));
 217
 218         /* Get adapter VPD information */
 219         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 220         if (!lpfc_vpd_data)
 221                 goto out_free_mbox;
 222         do {
 223                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 224                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 225
 226                 if (rc != MBX_SUCCESS) {
 227                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 228                                         "0441 VPD not present on adapter, "
 229                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 230                                         mb->mbxCommand, mb->mbxStatus);
 231                         mb->un.varDmp.word_cnt = 0;
 232                 }
 233                 /* dump mem may return a zero when finished or we got a
 234                  * mailbox error, either way we are done.
 235                  */
 236                 if (mb->un.varDmp.word_cnt == 0)
 237                         break;
 238                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 239                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 240                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 241                                       lpfc_vpd_data + offset,
 242                                       mb->un.varDmp.word_cnt);
 243                 offset += mb->un.varDmp.word_cnt;
 244         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 245         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 246
 247         kfree(lpfc_vpd_data);
 248 out_free_mbox:
 249         mempool_free(pmb, phba->mbox_mem_pool);
 250         return 0;
 251 }
 252
 253 /**
 254  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 255  * @phba: pointer to lpfc hba data structure.
 256  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 257  *
 258  * This is the completion handler for driver's configuring asynchronous event
 259  * mailbox command to the device. If the mailbox command returns successfully,
 260  * it will set internal async event support flag to 1; otherwise, it will
 261  * set internal async event support flag to 0.
 262  **/
 263 static void
 264 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 265 {
 266         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 267                 phba->temp_sensor_support = 1;
 268         else
 269                 phba->temp_sensor_support = 0;
 270         mempool_free(pmboxq, phba->mbox_mem_pool);
 271         return;
 272 }
 273
 274 /**
 275  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 276  * @phba: pointer to lpfc hba data structure.
 277  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 278  *
 279  * This is the completion handler for dump mailbox command for getting
 280  * wake up parameters. When this command complete, the response contain
 281  * Option rom version of the HBA. This function translate the version number
 282  * into a human readable string and store it in OptionROMVersion.
 283  **/
 284 static void
 285 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 286 {
 287         struct prog_id *prg;
 288         uint32_t prog_id_word;
 289         char dist = ' ';
 290         /* character array used for decoding dist type. */
 291         char dist_char[] = "nabx";
 292
 293         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 294                 mempool_free(pmboxq, phba->mbox_mem_pool);
 295                 return;
 296         }
 297
 298         prg = (struct prog_id *) &prog_id_word;
 299
 300         /* word 7 contain option rom version */
 301         prog_id_word = pmboxq->u.mb.un.varWords[7];
 302
 303         /* Decode the Option rom version word to a readable string */
 304         if (prg->dist < 4)
 305                 dist = dist_char[prg->dist];
 306
 307         if ((prg->dist == 3) && (prg->num == 0))
 308                 sprintf(phba->OptionROMVersion, "%d.%d%d",
 309                         prg->ver, prg->rev, prg->lev);
 310         else
 311                 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
 312                         prg->ver, prg->rev, prg->lev,
 313                         dist, prg->num);
 314         mempool_free(pmboxq, phba->mbox_mem_pool);
 315         return;
 316 }
 317
 318 /**
 319  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 320  *      cfg_soft_wwnn, cfg_soft_wwpn
 321  * @vport: pointer to lpfc vport data structure.
 322  *
 323  *
 324  * Return codes
 325  *   None.
 326  **/
 327 void
 328 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 329 {
 330         /* If the soft name exists then update it using the service params */
 331         if (vport->phba->cfg_soft_wwnn)
 332                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 333                            vport->fc_sparam.nodeName.u.wwn);
 334         if (vport->phba->cfg_soft_wwpn)
 335                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 336                            vport->fc_sparam.portName.u.wwn);
 337
 338         /*
 339          * If the name is empty or there exists a soft name
 340          * then copy the service params name, otherwise use the fc name
 341          */
 342         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 343                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 344                         sizeof(struct lpfc_name));
 345         else
 346                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 347                         sizeof(struct lpfc_name));
 348
 349         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 350                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 351                         sizeof(struct lpfc_name));
 352         else
 353                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 354                         sizeof(struct lpfc_name));
 355 }
 356
 357 /**
 358  * lpfc_config_port_post - Perform lpfc initialization after config port
 359  * @phba: pointer to lpfc hba data structure.
 360  *
 361  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 362  * command call. It performs all internal resource and state setups on the
 363  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 364  * ELS ring timers, etc.
 365  *
 366  * Return codes
 367  *   0 - success.
 368  *   Any other value - error.
 369  **/
 370 int
 371 lpfc_config_port_post(struct lpfc_hba *phba)
 372 {
 373         struct lpfc_vport *vport = phba->pport;
 374         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 375         LPFC_MBOXQ_t *pmb;
 376         MAILBOX_t *mb;
 377         struct lpfc_dmabuf *mp;
 378         struct lpfc_sli *psli = &phba->sli;
 379         uint32_t status, timeout;
 380         int i, j;
 381         int rc;
 382
 383         spin_lock_irq(&phba->hbalock);
 384         /*
 385          * If the Config port completed correctly the HBA is not
 386          * over heated any more.
 387          */
 388         if (phba->over_temp_state == HBA_OVER_TEMP)
 389                 phba->over_temp_state = HBA_NORMAL_TEMP;
 390         spin_unlock_irq(&phba->hbalock);
 391
 392         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 393         if (!pmb) {
 394                 phba->link_state = LPFC_HBA_ERROR;
 395                 return -ENOMEM;
 396         }
 397         mb = &pmb->u.mb;
 398
 399         /* Get login parameters for NID.  */
 400         rc = lpfc_read_sparam(phba, pmb, 0);
 401         if (rc) {
 402                 mempool_free(pmb, phba->mbox_mem_pool);
 403                 return -ENOMEM;
 404         }
 405
 406         pmb->vport = vport;
 407         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 408                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 409                                 "0448 Adapter failed init, mbxCmd x%x "
 410                                 "READ_SPARM mbxStatus x%x\n",
 411                                 mb->mbxCommand, mb->mbxStatus);
 412                 phba->link_state = LPFC_HBA_ERROR;
 413                 mp = (struct lpfc_dmabuf *) pmb->context1;
 414                 mempool_free(pmb, phba->mbox_mem_pool);
 415                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 416                 kfree(mp);
 417                 return -EIO;
 418         }
 419
 420         mp = (struct lpfc_dmabuf *) pmb->context1;
 421
 422         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 423         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 424         kfree(mp);
 425         pmb->context1 = NULL;
 426         lpfc_update_vport_wwn(vport);
 427
 428         /* Update the fc_host data structures with new wwn. */
 429         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 430         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 431         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 432
 433         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 434         /* This should be consolidated into parse_vpd ? - mr */
 435         if (phba->SerialNumber[0] == 0) {
 436                 uint8_t *outptr;
 437
 438                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 439                 for (i = 0; i < 12; i++) {
 440                         status = *outptr++;
 441                         j = ((status & 0xf0) >> 4);
 442                         if (j <= 9)
 443                                 phba->SerialNumber[i] =
 444                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 445                         else
 446                                 phba->SerialNumber[i] =
 447                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 448                         i++;
 449                         j = (status & 0xf);
 450                         if (j <= 9)
 451                                 phba->SerialNumber[i] =
 452                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 453                         else
 454                                 phba->SerialNumber[i] =
 455                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 456                 }
 457         }
 458
 459         lpfc_read_config(phba, pmb);
 460         pmb->vport = vport;
 461         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 462                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 463                                 "0453 Adapter failed to init, mbxCmd x%x "
 464                                 "READ_CONFIG, mbxStatus x%x\n",
 465                                 mb->mbxCommand, mb->mbxStatus);
 466                 phba->link_state = LPFC_HBA_ERROR;
 467                 mempool_free( pmb, phba->mbox_mem_pool);
 468                 return -EIO;
 469         }
 470
 471         /* Check if the port is disabled */
 472         lpfc_sli_read_link_ste(phba);
 473
 474         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 475         if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
 476                 phba->cfg_hba_queue_depth =
 477                         (mb->un.varRdConfig.max_xri + 1) -
 478                                         lpfc_sli4_get_els_iocb_cnt(phba);
 479
 480         phba->lmt = mb->un.varRdConfig.lmt;
 481
 482         /* Get the default values for Model Name and Description */
 483         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 484
 485         phba->link_state = LPFC_LINK_DOWN;
 486
 487         /* Only process IOCBs on ELS ring till hba_state is READY */
 488         if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
 489                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 490         if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
 491                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 492         if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
 493                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 494
 495         /* Post receive buffers for desired rings */
 496         if (phba->sli_rev != 3)
 497                 lpfc_post_rcv_buf(phba);
 498
 499         /*
 500          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 501          */
 502         if (phba->intr_type == MSIX) {
 503                 rc = lpfc_config_msi(phba, pmb);
 504                 if (rc) {
 505                         mempool_free(pmb, phba->mbox_mem_pool);
 506                         return -EIO;
 507                 }
 508                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 509                 if (rc != MBX_SUCCESS) {
 510                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 511                                         "0352 Config MSI mailbox command "
 512                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 513                                         pmb->u.mb.mbxCommand,
 514                                         pmb->u.mb.mbxStatus);
 515                         mempool_free(pmb, phba->mbox_mem_pool);
 516                         return -EIO;
 517                 }
 518         }
 519
 520         spin_lock_irq(&phba->hbalock);
 521         /* Initialize ERATT handling flag */
 522         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 523
 524         /* Enable appropriate host interrupts */
 525         if (lpfc_readl(phba->HCregaddr, &status)) {
 526                 spin_unlock_irq(&phba->hbalock);
 527                 return -EIO;
 528         }
 529         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 530         if (psli->num_rings > 0)
 531                 status |= HC_R0INT_ENA;
 532         if (psli->num_rings > 1)
 533                 status |= HC_R1INT_ENA;
 534         if (psli->num_rings > 2)
 535                 status |= HC_R2INT_ENA;
 536         if (psli->num_rings > 3)
 537                 status |= HC_R3INT_ENA;
 538
 539         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 540             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 541                 status &= ~(HC_R0INT_ENA);
 542
 543         writel(status, phba->HCregaddr);
 544         readl(phba->HCregaddr); /* flush */
 545         spin_unlock_irq(&phba->hbalock);
 546
 547         /* Set up ring-0 (ELS) timer */
 548         timeout = phba->fc_ratov * 2;
 549         mod_timer(&vport->els_tmofunc,
 550                   jiffies + msecs_to_jiffies(1000 * timeout));
 551         /* Set up heart beat (HB) timer */
 552         mod_timer(&phba->hb_tmofunc,
 553                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 554         phba->hb_outstanding = 0;
 555         phba->last_completion_time = jiffies;
 556         /* Set up error attention (ERATT) polling timer */
 557         mod_timer(&phba->eratt_poll,
 558                   jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
 559
 560         if (phba->hba_flag & LINK_DISABLED) {
 561                 lpfc_printf_log(phba,
 562                         KERN_ERR, LOG_INIT,
 563                         "2598 Adapter Link is disabled.\n");
 564                 lpfc_down_link(phba, pmb);
 565                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 566                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 567                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 568                         lpfc_printf_log(phba,
 569                         KERN_ERR, LOG_INIT,
 570                         "2599 Adapter failed to issue DOWN_LINK"
 571                         " mbox command rc 0x%x\n", rc);
 572
 573                         mempool_free(pmb, phba->mbox_mem_pool);
 574                         return -EIO;
 575                 }
 576         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 577                 mempool_free(pmb, phba->mbox_mem_pool);
 578                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 579                 if (rc)
 580                         return rc;
 581         }
 582         /* MBOX buffer will be freed in mbox compl */
 583         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 584         if (!pmb) {
 585                 phba->link_state = LPFC_HBA_ERROR;
 586                 return -ENOMEM;
 587         }
 588
 589         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 590         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 591         pmb->vport = phba->pport;
 592         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 593
 594         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 595                 lpfc_printf_log(phba,
 596                                 KERN_ERR,
 597                                 LOG_INIT,
 598                                 "0456 Adapter failed to issue "
 599                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 600                                 rc);
 601                 mempool_free(pmb, phba->mbox_mem_pool);
 602         }
 603
 604         /* Get Option rom version */
 605         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 606         if (!pmb) {
 607                 phba->link_state = LPFC_HBA_ERROR;
 608                 return -ENOMEM;
 609         }
 610
 611         lpfc_dump_wakeup_param(phba, pmb);
 612         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 613         pmb->vport = phba->pport;
 614         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 615
 616         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 617                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 618                                 "to get Option ROM version status x%x\n", rc);
 619                 mempool_free(pmb, phba->mbox_mem_pool);
 620         }
 621
 622         return 0;
 623 }
 624
 625 /**
 626  * lpfc_hba_init_link - Initialize the FC link
 627  * @phba: pointer to lpfc hba data structure.
 628  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 629  *
 630  * This routine will issue the INIT_LINK mailbox command call.
 631  * It is available to other drivers through the lpfc_hba data
 632  * structure for use as a delayed link up mechanism with the
 633  * module parameter lpfc_suppress_link_up.
 634  *
 635  * Return code
 636  *              0 - success
 637  *              Any other value - error
 638  **/
 639 int
 640 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 641 {
 642         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 643 }
 644
 645 /**
 646  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 647  * @phba: pointer to lpfc hba data structure.
 648  * @fc_topology: desired fc topology.
 649  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 650  *
 651  * This routine will issue the INIT_LINK mailbox command call.
 652  * It is available to other drivers through the lpfc_hba data
 653  * structure for use as a delayed link up mechanism with the
 654  * module parameter lpfc_suppress_link_up.
 655  *
 656  * Return code
 657  *              0 - success
 658  *              Any other value - error
 659  **/
 660 int
 661 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 662                                uint32_t flag)
 663 {
 664         struct lpfc_vport *vport = phba->pport;
 665         LPFC_MBOXQ_t *pmb;
 666         MAILBOX_t *mb;
 667         int rc;
 668
 669         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 670         if (!pmb) {
 671                 phba->link_state = LPFC_HBA_ERROR;
 672                 return -ENOMEM;
 673         }
 674         mb = &pmb->u.mb;
 675         pmb->vport = vport;
 676
 677         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 678             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 679              !(phba->lmt & LMT_1Gb)) ||
 680             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 681              !(phba->lmt & LMT_2Gb)) ||
 682             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 683              !(phba->lmt & LMT_4Gb)) ||
 684             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 685              !(phba->lmt & LMT_8Gb)) ||
 686             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 687              !(phba->lmt & LMT_10Gb)) ||
 688             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 689              !(phba->lmt & LMT_16Gb))) {
 690                 /* Reset link speed to auto */
 691                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 692                         "1302 Invalid speed for this board:%d "
 693                         "Reset link speed to auto.\n",
 694                         phba->cfg_link_speed);
 695                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 696         }
 697         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 698         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 699         if (phba->sli_rev < LPFC_SLI_REV4)
 700                 lpfc_set_loopback_flag(phba);
 701         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 702         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 703                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 704                         "0498 Adapter failed to init, mbxCmd x%x "
 705                         "INIT_LINK, mbxStatus x%x\n",
 706                         mb->mbxCommand, mb->mbxStatus);
 707                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 708                         /* Clear all interrupt enable conditions */
 709                         writel(0, phba->HCregaddr);
 710                         readl(phba->HCregaddr); /* flush */
 711                         /* Clear all pending interrupts */
 712                         writel(0xffffffff, phba->HAregaddr);
 713                         readl(phba->HAregaddr); /* flush */
 714                 }
 715                 phba->link_state = LPFC_HBA_ERROR;
 716                 if (rc != MBX_BUSY || flag == MBX_POLL)
 717                         mempool_free(pmb, phba->mbox_mem_pool);
 718                 return -EIO;
 719         }
 720         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 721         if (flag == MBX_POLL)
 722                 mempool_free(pmb, phba->mbox_mem_pool);
 723
 724         return 0;
 725 }
 726
 727 /**
 728  * lpfc_hba_down_link - this routine downs the FC link
 729  * @phba: pointer to lpfc hba data structure.
 730  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 731  *
 732  * This routine will issue the DOWN_LINK mailbox command call.
 733  * It is available to other drivers through the lpfc_hba data
 734  * structure for use to stop the link.
 735  *
 736  * Return code
 737  *              0 - success
 738  *              Any other value - error
 739  **/
 740 int
 741 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 742 {
 743         LPFC_MBOXQ_t *pmb;
 744         int rc;
 745
 746         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 747         if (!pmb) {
 748                 phba->link_state = LPFC_HBA_ERROR;
 749                 return -ENOMEM;
 750         }
 751
 752         lpfc_printf_log(phba,
 753                 KERN_ERR, LOG_INIT,
 754                 "0491 Adapter Link is disabled.\n");
 755         lpfc_down_link(phba, pmb);
 756         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 757         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 758         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 759                 lpfc_printf_log(phba,
 760                 KERN_ERR, LOG_INIT,
 761                 "2522 Adapter failed to issue DOWN_LINK"
 762                 " mbox command rc 0x%x\n", rc);
 763
 764                 mempool_free(pmb, phba->mbox_mem_pool);
 765                 return -EIO;
 766         }
 767         if (flag == MBX_POLL)
 768                 mempool_free(pmb, phba->mbox_mem_pool);
 769
 770         return 0;
 771 }
 772
 773 /**
 774  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 775  * @phba: pointer to lpfc HBA data structure.
 776  *
 777  * This routine will do LPFC uninitialization before the HBA is reset when
 778  * bringing down the SLI Layer.
 779  *
 780  * Return codes
 781  *   0 - success.
 782  *   Any other value - error.
 783  **/
 784 int
 785 lpfc_hba_down_prep(struct lpfc_hba *phba)
 786 {
 787         struct lpfc_vport **vports;
 788         int i;
 789
 790         if (phba->sli_rev <= LPFC_SLI_REV3) {
 791                 /* Disable interrupts */
 792                 writel(0, phba->HCregaddr);
 793                 readl(phba->HCregaddr); /* flush */
 794         }
 795
 796         if (phba->pport->load_flag & FC_UNLOADING)
 797                 lpfc_cleanup_discovery_resources(phba->pport);
 798         else {
 799                 vports = lpfc_create_vport_work_array(phba);
 800                 if (vports != NULL)
 801                         for (i = 0; i <= phba->max_vports &&
 802                                 vports[i] != NULL; i++)
 803                                 lpfc_cleanup_discovery_resources(vports[i]);
 804                 lpfc_destroy_vport_work_array(phba, vports);
 805         }
 806         return 0;
 807 }
 808
 809 /**
 810  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 811  * @phba: pointer to lpfc HBA data structure.
 812  *
 813  * This routine will do uninitialization after the HBA is reset when bring
 814  * down the SLI Layer.
 815  *
 816  * Return codes
 817  *   0 - success.
 818  *   Any other value - error.
 819  **/
 820 static int
 821 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 822 {
 823         struct lpfc_sli *psli = &phba->sli;
 824         struct lpfc_sli_ring *pring;
 825         struct lpfc_dmabuf *mp, *next_mp;
 826         LIST_HEAD(completions);
 827         int i;
 828
 829         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 830                 lpfc_sli_hbqbuf_free_all(phba);
 831         else {
 832                 /* Cleanup preposted buffers on the ELS ring */
 833                 pring = &psli->ring[LPFC_ELS_RING];
 834                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 835                         list_del(&mp->list);
 836                         pring->postbufq_cnt--;
 837                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 838                         kfree(mp);
 839                 }
 840         }
 841
 842         spin_lock_irq(&phba->hbalock);
 843         for (i = 0; i < psli->num_rings; i++) {
 844                 pring = &psli->ring[i];
 845
 846                 /* At this point in time the HBA is either reset or DOA. Either
 847                  * way, nothing should be on txcmplq as it will NEVER complete.
 848                  */
 849                 list_splice_init(&pring->txcmplq, &completions);
 850                 spin_unlock_irq(&phba->hbalock);
 851
 852                 /* Cancel all the IOCBs from the completions list */
 853                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 854                                       IOERR_SLI_ABORTED);
 855
 856                 lpfc_sli_abort_iocb_ring(phba, pring);
 857                 spin_lock_irq(&phba->hbalock);
 858         }
 859         spin_unlock_irq(&phba->hbalock);
 860
 861         return 0;
 862 }
 863
 864 /**
 865  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 866  * @phba: pointer to lpfc HBA data structure.
 867  *
 868  * This routine will do uninitialization after the HBA is reset when bring
 869  * down the SLI Layer.
 870  *
 871  * Return codes
 872  *   0 - success.
 873  *   Any other value - error.
 874  **/
 875 static int
 876 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 877 {
 878         struct lpfc_scsi_buf *psb, *psb_next;
 879         LIST_HEAD(aborts);
 880         int ret;
 881         unsigned long iflag = 0;
 882         struct lpfc_sglq *sglq_entry = NULL;
 883
 884         ret = lpfc_hba_down_post_s3(phba);
 885         if (ret)
 886                 return ret;
 887         /* At this point in time the HBA is either reset or DOA. Either
 888          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 889          * on the lpfc_sgl_list so that it can either be freed if the
 890          * driver is unloading or reposted if the driver is restarting
 891          * the port.
 892          */
 893         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 894                                         /* scsl_buf_list */
 895         /* abts_sgl_list_lock required because worker thread uses this
 896          * list.
 897          */
 898         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 899         list_for_each_entry(sglq_entry,
 900                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 901                 sglq_entry->state = SGL_FREED;
 902
 903         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 904                         &phba->sli4_hba.lpfc_sgl_list);
 905         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 906         /* abts_scsi_buf_list_lock required because worker thread uses this
 907          * list.
 908          */
 909         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 910         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 911                         &aborts);
 912         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 913         spin_unlock_irq(&phba->hbalock);
 914
 915         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 916                 psb->pCmd = NULL;
 917                 psb->status = IOSTAT_SUCCESS;
 918         }
 919         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
 920         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
 921         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
 922         return 0;
 923 }
 924
 925 /**
 926  * lpfc_hba_down_post - Wrapper func for hba down post routine
 927  * @phba: pointer to lpfc HBA data structure.
 928  *
 929  * This routine wraps the actual SLI3 or SLI4 routine for performing
 930  * uninitialization after the HBA is reset when bring down the SLI Layer.
 931  *
 932  * Return codes
 933  *   0 - success.
 934  *   Any other value - error.
 935  **/
 936 int
 937 lpfc_hba_down_post(struct lpfc_hba *phba)
 938 {
 939         return (*phba->lpfc_hba_down_post)(phba);
 940 }
 941
 942 /**
 943  * lpfc_hb_timeout - The HBA-timer timeout handler
 944  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 945  *
 946  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 947  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 948  * work-port-events bitmap and the worker thread is notified. This timeout
 949  * event will be used by the worker thread to invoke the actual timeout
 950  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 951  * be performed in the timeout handler and the HBA timeout event bit shall
 952  * be cleared by the worker thread after it has taken the event bitmap out.
 953  **/
 954 static void
 955 lpfc_hb_timeout(unsigned long ptr)
 956 {
 957         struct lpfc_hba *phba;
 958         uint32_t tmo_posted;
 959         unsigned long iflag;
 960
 961         phba = (struct lpfc_hba *)ptr;
 962
 963         /* Check for heart beat timeout conditions */
 964         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 965         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 966         if (!tmo_posted)
 967                 phba->pport->work_port_events |= WORKER_HB_TMO;
 968         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 969
 970         /* Tell the worker thread there is work to do */
 971         if (!tmo_posted)
 972                 lpfc_worker_wake_up(phba);
 973         return;
 974 }
 975
 976 /**
 977  * lpfc_rrq_timeout - The RRQ-timer timeout handler
 978  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 979  *
 980  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 981  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 982  * work-port-events bitmap and the worker thread is notified. This timeout
 983  * event will be used by the worker thread to invoke the actual timeout
 984  * handler routine, lpfc_rrq_handler. Any periodical operations will
 985  * be performed in the timeout handler and the RRQ timeout event bit shall
 986  * be cleared by the worker thread after it has taken the event bitmap out.
 987  **/
 988 static void
 989 lpfc_rrq_timeout(unsigned long ptr)
 990 {
 991         struct lpfc_hba *phba;
 992         unsigned long iflag;
 993
 994         phba = (struct lpfc_hba *)ptr;
 995         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 996         phba->hba_flag |= HBA_RRQ_ACTIVE;
 997         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 998         lpfc_worker_wake_up(phba);
 999 }
1000
1001 /**
1002  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1003  * @phba: pointer to lpfc hba data structure.
1004  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1005  *
1006  * This is the callback function to the lpfc heart-beat mailbox command.
1007  * If configured, the lpfc driver issues the heart-beat mailbox command to
1008  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1009  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1010  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1011  * heart-beat outstanding state. Once the mailbox command comes back and
1012  * no error conditions detected, the heart-beat mailbox command timer is
1013  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1014  * state is cleared for the next heart-beat. If the timer expired with the
1015  * heart-beat outstanding state set, the driver will put the HBA offline.
1016  **/
1017 static void
1018 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1019 {
1020         unsigned long drvr_flag;
1021
1022         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1023         phba->hb_outstanding = 0;
1024         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1025
1026         /* Check and reset heart-beat timer is necessary */
1027         mempool_free(pmboxq, phba->mbox_mem_pool);
1028         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1029                 !(phba->link_state == LPFC_HBA_ERROR) &&
1030                 !(phba->pport->load_flag & FC_UNLOADING))
1031                 mod_timer(&phba->hb_tmofunc,
1032                           jiffies +
1033                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1034         return;
1035 }
1036
1037 /**
1038  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1039  * @phba: pointer to lpfc hba data structure.
1040  *
1041  * This is the actual HBA-timer timeout handler to be invoked by the worker
1042  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1043  * handler performs any periodic operations needed for the device. If such
1044  * periodic event has already been attended to either in the interrupt handler
1045  * or by processing slow-ring or fast-ring events within the HBA-timer
1046  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1047  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1048  * is configured and there is no heart-beat mailbox command outstanding, a
1049  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1050  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1051  * to offline.
1052  **/
1053 void
1054 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1055 {
1056         struct lpfc_vport **vports;
1057         LPFC_MBOXQ_t *pmboxq;
1058         struct lpfc_dmabuf *buf_ptr;
1059         int retval, i;
1060         struct lpfc_sli *psli = &phba->sli;
1061         LIST_HEAD(completions);
1062
1063         vports = lpfc_create_vport_work_array(phba);
1064         if (vports != NULL)
1065                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1066                         lpfc_rcv_seq_check_edtov(vports[i]);
1067         lpfc_destroy_vport_work_array(phba, vports);
1068
1069         if ((phba->link_state == LPFC_HBA_ERROR) ||
1070                 (phba->pport->load_flag & FC_UNLOADING) ||
1071                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1072                 return;
1073
1074         spin_lock_irq(&phba->pport->work_port_lock);
1075
1076         if (time_after(phba->last_completion_time +
1077                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1078                         jiffies)) {
1079                 spin_unlock_irq(&phba->pport->work_port_lock);
1080                 if (!phba->hb_outstanding)
1081                         mod_timer(&phba->hb_tmofunc,
1082                                 jiffies +
1083                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1084                 else
1085                         mod_timer(&phba->hb_tmofunc,
1086                                 jiffies +
1087                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1088                 return;
1089         }
1090         spin_unlock_irq(&phba->pport->work_port_lock);
1091
1092         if (phba->elsbuf_cnt &&
1093                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1094                 spin_lock_irq(&phba->hbalock);
1095                 list_splice_init(&phba->elsbuf, &completions);
1096                 phba->elsbuf_cnt = 0;
1097                 phba->elsbuf_prev_cnt = 0;
1098                 spin_unlock_irq(&phba->hbalock);
1099
1100                 while (!list_empty(&completions)) {
1101                         list_remove_head(&completions, buf_ptr,
1102                                 struct lpfc_dmabuf, list);
1103                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1104                         kfree(buf_ptr);
1105                 }
1106         }
1107         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1108
1109         /* If there is no heart beat outstanding, issue a heartbeat command */
1110         if (phba->cfg_enable_hba_heartbeat) {
1111                 if (!phba->hb_outstanding) {
1112                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1113                                 (list_empty(&psli->mboxq))) {
1114                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1115                                                         GFP_KERNEL);
1116                                 if (!pmboxq) {
1117                                         mod_timer(&phba->hb_tmofunc,
1118                                                  jiffies +
1119                                                  msecs_to_jiffies(1000 *
1120                                                  LPFC_HB_MBOX_INTERVAL));
1121                                         return;
1122                                 }
1123
1124                                 lpfc_heart_beat(phba, pmboxq);
1125                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1126                                 pmboxq->vport = phba->pport;
1127                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1128                                                 MBX_NOWAIT);
1129
1130                                 if (retval != MBX_BUSY &&
1131                                         retval != MBX_SUCCESS) {
1132                                         mempool_free(pmboxq,
1133                                                         phba->mbox_mem_pool);
1134                                         mod_timer(&phba->hb_tmofunc,
1135                                                 jiffies +
1136                                                 msecs_to_jiffies(1000 *
1137                                                 LPFC_HB_MBOX_INTERVAL));
1138                                         return;
1139                                 }
1140                                 phba->skipped_hb = 0;
1141                                 phba->hb_outstanding = 1;
1142                         } else if (time_before_eq(phba->last_completion_time,
1143                                         phba->skipped_hb)) {
1144                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1145                                         "2857 Last completion time not "
1146                                         " updated in %d ms\n",
1147                                         jiffies_to_msecs(jiffies
1148                                                  - phba->last_completion_time));
1149                         } else
1150                                 phba->skipped_hb = jiffies;
1151
1152                         mod_timer(&phba->hb_tmofunc,
1153                                  jiffies +
1154                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1155                         return;
1156                 } else {
1157                         /*
1158                         * If heart beat timeout called with hb_outstanding set
1159                         * we need to give the hb mailbox cmd a chance to
1160                         * complete or TMO.
1161                         */
1162                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1163                                         "0459 Adapter heartbeat still out"
1164                                         "standing:last compl time was %d ms.\n",
1165                                         jiffies_to_msecs(jiffies
1166                                                  - phba->last_completion_time));
1167                         mod_timer(&phba->hb_tmofunc,
1168                                 jiffies +
1169                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1170                 }
1171         }
1172 }
1173
1174 /**
1175  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1176  * @phba: pointer to lpfc hba data structure.
1177  *
1178  * This routine is called to bring the HBA offline when HBA hardware error
1179  * other than Port Error 6 has been detected.
1180  **/
1181 static void
1182 lpfc_offline_eratt(struct lpfc_hba *phba)
1183 {
1184         struct lpfc_sli   *psli = &phba->sli;
1185
1186         spin_lock_irq(&phba->hbalock);
1187         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1188         spin_unlock_irq(&phba->hbalock);
1189         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1190
1191         lpfc_offline(phba);
1192         lpfc_reset_barrier(phba);
1193         spin_lock_irq(&phba->hbalock);
1194         lpfc_sli_brdreset(phba);
1195         spin_unlock_irq(&phba->hbalock);
1196         lpfc_hba_down_post(phba);
1197         lpfc_sli_brdready(phba, HS_MBRDY);
1198         lpfc_unblock_mgmt_io(phba);
1199         phba->link_state = LPFC_HBA_ERROR;
1200         return;
1201 }
1202
1203 /**
1204  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1205  * @phba: pointer to lpfc hba data structure.
1206  *
1207  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1208  * other than Port Error 6 has been detected.
1209  **/
1210 void
1211 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1212 {
1213         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1214         lpfc_offline(phba);
1215         lpfc_sli4_brdreset(phba);
1216         lpfc_hba_down_post(phba);
1217         lpfc_sli4_post_status_check(phba);
1218         lpfc_unblock_mgmt_io(phba);
1219         phba->link_state = LPFC_HBA_ERROR;
1220 }
1221
1222 /**
1223  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1224  * @phba: pointer to lpfc hba data structure.
1225  *
1226  * This routine is invoked to handle the deferred HBA hardware error
1227  * conditions. This type of error is indicated by HBA by setting ER1
1228  * and another ER bit in the host status register. The driver will
1229  * wait until the ER1 bit clears before handling the error condition.
1230  **/
1231 static void
1232 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1233 {
1234         uint32_t old_host_status = phba->work_hs;
1235         struct lpfc_sli_ring  *pring;
1236         struct lpfc_sli *psli = &phba->sli;
1237
1238         /* If the pci channel is offline, ignore possible errors,
1239          * since we cannot communicate with the pci card anyway.
1240          */
1241         if (pci_channel_offline(phba->pcidev)) {
1242                 spin_lock_irq(&phba->hbalock);
1243                 phba->hba_flag &= ~DEFER_ERATT;
1244                 spin_unlock_irq(&phba->hbalock);
1245                 return;
1246         }
1247
1248         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1249                 "0479 Deferred Adapter Hardware Error "
1250                 "Data: x%x x%x x%x\n",
1251                 phba->work_hs,
1252                 phba->work_status[0], phba->work_status[1]);
1253
1254         spin_lock_irq(&phba->hbalock);
1255         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1256         spin_unlock_irq(&phba->hbalock);
1257
1258
1259         /*
1260          * Firmware stops when it triggred erratt. That could cause the I/Os
1261          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1262          * SCSI layer retry it after re-establishing link.
1263          */
1264         pring = &psli->ring[psli->fcp_ring];
1265         lpfc_sli_abort_iocb_ring(phba, pring);
1266
1267         /*
1268          * There was a firmware error. Take the hba offline and then
1269          * attempt to restart it.
1270          */
1271         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1272         lpfc_offline(phba);
1273
1274         /* Wait for the ER1 bit to clear.*/
1275         while (phba->work_hs & HS_FFER1) {
1276                 msleep(100);
1277                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1278                         phba->work_hs = UNPLUG_ERR ;
1279                         break;
1280                 }
1281                 /* If driver is unloading let the worker thread continue */
1282                 if (phba->pport->load_flag & FC_UNLOADING) {
1283                         phba->work_hs = 0;
1284                         break;
1285                 }
1286         }
1287
1288         /*
1289          * This is to ptrotect against a race condition in which
1290          * first write to the host attention register clear the
1291          * host status register.
1292          */
1293         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1294                 phba->work_hs = old_host_status & ~HS_FFER1;
1295
1296         spin_lock_irq(&phba->hbalock);
1297         phba->hba_flag &= ~DEFER_ERATT;
1298         spin_unlock_irq(&phba->hbalock);
1299         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1300         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1301 }
1302
1303 static void
1304 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1305 {
1306         struct lpfc_board_event_header board_event;
1307         struct Scsi_Host *shost;
1308
1309         board_event.event_type = FC_REG_BOARD_EVENT;
1310         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1311         shost = lpfc_shost_from_vport(phba->pport);
1312         fc_host_post_vendor_event(shost, fc_get_event_number(),
1313                                   sizeof(board_event),
1314                                   (char *) &board_event,
1315                                   LPFC_NL_VENDOR_ID);
1316 }
1317
1318 /**
1319  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1320  * @phba: pointer to lpfc hba data structure.
1321  *
1322  * This routine is invoked to handle the following HBA hardware error
1323  * conditions:
1324  * 1 - HBA error attention interrupt
1325  * 2 - DMA ring index out of range
1326  * 3 - Mailbox command came back as unknown
1327  **/
1328 static void
1329 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1330 {
1331         struct lpfc_vport *vport = phba->pport;
1332         struct lpfc_sli   *psli = &phba->sli;
1333         struct lpfc_sli_ring  *pring;
1334         uint32_t event_data;
1335         unsigned long temperature;
1336         struct temp_event temp_event_data;
1337         struct Scsi_Host  *shost;
1338
1339         /* If the pci channel is offline, ignore possible errors,
1340          * since we cannot communicate with the pci card anyway.
1341          */
1342         if (pci_channel_offline(phba->pcidev)) {
1343                 spin_lock_irq(&phba->hbalock);
1344                 phba->hba_flag &= ~DEFER_ERATT;
1345                 spin_unlock_irq(&phba->hbalock);
1346                 return;
1347         }
1348
1349         /* If resets are disabled then leave the HBA alone and return */
1350         if (!phba->cfg_enable_hba_reset)
1351                 return;
1352
1353         /* Send an internal error event to mgmt application */
1354         lpfc_board_errevt_to_mgmt(phba);
1355
1356         if (phba->hba_flag & DEFER_ERATT)
1357                 lpfc_handle_deferred_eratt(phba);
1358
1359         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1360                 if (phba->work_hs & HS_FFER6)
1361                         /* Re-establishing Link */
1362                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1363                                         "1301 Re-establishing Link "
1364                                         "Data: x%x x%x x%x\n",
1365                                         phba->work_hs, phba->work_status[0],
1366                                         phba->work_status[1]);
1367                 if (phba->work_hs & HS_FFER8)
1368                         /* Device Zeroization */
1369                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1370                                         "2861 Host Authentication device "
1371                                         "zeroization Data:x%x x%x x%x\n",
1372                                         phba->work_hs, phba->work_status[0],
1373                                         phba->work_status[1]);
1374
1375                 spin_lock_irq(&phba->hbalock);
1376                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1377                 spin_unlock_irq(&phba->hbalock);
1378
1379                 /*
1380                 * Firmware stops when it triggled erratt with HS_FFER6.
1381                 * That could cause the I/Os dropped by the firmware.
1382                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1383                 * retry it after re-establishing link.
1384                 */
1385                 pring = &psli->ring[psli->fcp_ring];
1386                 lpfc_sli_abort_iocb_ring(phba, pring);
1387
1388                 /*
1389                  * There was a firmware error.  Take the hba offline and then
1390                  * attempt to restart it.
1391                  */
1392                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1393                 lpfc_offline(phba);
1394                 lpfc_sli_brdrestart(phba);
1395                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1396                         lpfc_unblock_mgmt_io(phba);
1397                         return;
1398                 }
1399                 lpfc_unblock_mgmt_io(phba);
1400         } else if (phba->work_hs & HS_CRIT_TEMP) {
1401                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1402                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1403                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1404                 temp_event_data.data = (uint32_t)temperature;
1405
1406                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1407                                 "0406 Adapter maximum temperature exceeded "
1408                                 "(%ld), taking this port offline "
1409                                 "Data: x%x x%x x%x\n",
1410                                 temperature, phba->work_hs,
1411                                 phba->work_status[0], phba->work_status[1]);
1412
1413                 shost = lpfc_shost_from_vport(phba->pport);
1414                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1415                                           sizeof(temp_event_data),
1416                                           (char *) &temp_event_data,
1417                                           SCSI_NL_VID_TYPE_PCI
1418                                           | PCI_VENDOR_ID_EMULEX);
1419
1420                 spin_lock_irq(&phba->hbalock);
1421                 phba->over_temp_state = HBA_OVER_TEMP;
1422                 spin_unlock_irq(&phba->hbalock);
1423                 lpfc_offline_eratt(phba);
1424
1425         } else {
1426                 /* The if clause above forces this code path when the status
1427                  * failure is a value other than FFER6. Do not call the offline
1428                  * twice. This is the adapter hardware error path.
1429                  */
1430                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1431                                 "0457 Adapter Hardware Error "
1432                                 "Data: x%x x%x x%x\n",
1433                                 phba->work_hs,
1434                                 phba->work_status[0], phba->work_status[1]);
1435
1436                 event_data = FC_REG_DUMP_EVENT;
1437                 shost = lpfc_shost_from_vport(vport);
1438                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1439                                 sizeof(event_data), (char *) &event_data,
1440                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1441
1442                 lpfc_offline_eratt(phba);
1443         }
1444         return;
1445 }
1446
1447 /**
1448  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1449  * @phba: pointer to lpfc hba data structure.
1450  * @mbx_action: flag for mailbox shutdown action.
1451  *
1452  * This routine is invoked to perform an SLI4 port PCI function reset in
1453  * response to port status register polling attention. It waits for port
1454  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1455  * During this process, interrupt vectors are freed and later requested
1456  * for handling possible port resource change.
1457  **/
1458 static int
1459 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action)
1460 {
1461         int rc;
1462         uint32_t intr_mode;
1463
1464         /*
1465          * On error status condition, driver need to wait for port
1466          * ready before performing reset.
1467          */
1468         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1469         if (!rc) {
1470                 /* need reset: attempt for port recovery */
1471                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1472                                 "2887 Reset Needed: Attempting Port "
1473                                 "Recovery...\n");
1474                 lpfc_offline_prep(phba, mbx_action);
1475                 lpfc_offline(phba);
1476                 /* release interrupt for possible resource change */
1477                 lpfc_sli4_disable_intr(phba);
1478                 lpfc_sli_brdrestart(phba);
1479                 /* request and enable interrupt */
1480                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1481                 if (intr_mode == LPFC_INTR_ERROR) {
1482                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1483                                         "3175 Failed to enable interrupt\n");
1484                         return -EIO;
1485                 } else {
1486                         phba->intr_mode = intr_mode;
1487                 }
1488                 rc = lpfc_online(phba);
1489                 if (rc == 0)
1490                         lpfc_unblock_mgmt_io(phba);
1491         }
1492         return rc;
1493 }
1494
1495 /**
1496  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1497  * @phba: pointer to lpfc hba data structure.
1498  *
1499  * This routine is invoked to handle the SLI4 HBA hardware error attention
1500  * conditions.
1501  **/
1502 static void
1503 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1504 {
1505         struct lpfc_vport *vport = phba->pport;
1506         uint32_t event_data;
1507         struct Scsi_Host *shost;
1508         uint32_t if_type;
1509         struct lpfc_register portstat_reg = {0};
1510         uint32_t reg_err1, reg_err2;
1511         uint32_t uerrlo_reg, uemasklo_reg;
1512         uint32_t pci_rd_rc1, pci_rd_rc2;
1513         int rc;
1514
1515         /* If the pci channel is offline, ignore possible errors, since
1516          * we cannot communicate with the pci card anyway.
1517          */
1518         if (pci_channel_offline(phba->pcidev))
1519                 return;
1520         /* If resets are disabled then leave the HBA alone and return */
1521         if (!phba->cfg_enable_hba_reset)
1522                 return;
1523
1524         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1525         switch (if_type) {
1526         case LPFC_SLI_INTF_IF_TYPE_0:
1527                 pci_rd_rc1 = lpfc_readl(
1528                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1529                                 &uerrlo_reg);
1530                 pci_rd_rc2 = lpfc_readl(
1531                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1532                                 &uemasklo_reg);
1533                 /* consider PCI bus read error as pci_channel_offline */
1534                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1535                         return;
1536                 lpfc_sli4_offline_eratt(phba);
1537                 break;
1538         case LPFC_SLI_INTF_IF_TYPE_2:
1539                 pci_rd_rc1 = lpfc_readl(
1540                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1541                                 &portstat_reg.word0);
1542                 /* consider PCI bus read error as pci_channel_offline */
1543                 if (pci_rd_rc1 == -EIO) {
1544                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1545                                 "3151 PCI bus read access failure: x%x\n",
1546                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1547                         return;
1548                 }
1549                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1550                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1551                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1552                         /* TODO: Register for Overtemp async events. */
1553                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1554                                 "2889 Port Overtemperature event, "
1555                                 "taking port offline\n");
1556                         spin_lock_irq(&phba->hbalock);
1557                         phba->over_temp_state = HBA_OVER_TEMP;
1558                         spin_unlock_irq(&phba->hbalock);
1559                         lpfc_sli4_offline_eratt(phba);
1560                         break;
1561                 }
1562                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1563                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART)
1564                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1565                                         "3143 Port Down: Firmware Restarted\n");
1566                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1567                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1568                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1569                                         "3144 Port Down: Debug Dump\n");
1570                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1571                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1572                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1573                                         "3145 Port Down: Provisioning\n");
1574
1575                 /* Check port status register for function reset */
1576                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT);
1577                 if (rc == 0) {
1578                         /* don't report event on forced debug dump */
1579                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1580                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1581                                 return;
1582                         else
1583                                 break;
1584                 }
1585                 /* fall through for not able to recover */
1586                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1587                                 "3152 Unrecoverable error, bring the port "
1588                                 "offline\n");
1589                 lpfc_sli4_offline_eratt(phba);
1590                 break;
1591         case LPFC_SLI_INTF_IF_TYPE_1:
1592         default:
1593                 break;
1594         }
1595         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1596                         "3123 Report dump event to upper layer\n");
1597         /* Send an internal error event to mgmt application */
1598         lpfc_board_errevt_to_mgmt(phba);
1599
1600         event_data = FC_REG_DUMP_EVENT;
1601         shost = lpfc_shost_from_vport(vport);
1602         fc_host_post_vendor_event(shost, fc_get_event_number(),
1603                                   sizeof(event_data), (char *) &event_data,
1604                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1605 }
1606
1607 /**
1608  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1609  * @phba: pointer to lpfc HBA data structure.
1610  *
1611  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1612  * routine from the API jump table function pointer from the lpfc_hba struct.
1613  *
1614  * Return codes
1615  *   0 - success.
1616  *   Any other value - error.
1617  **/
1618 void
1619 lpfc_handle_eratt(struct lpfc_hba *phba)
1620 {
1621         (*phba->lpfc_handle_eratt)(phba);
1622 }
1623
1624 /**
1625  * lpfc_handle_latt - The HBA link event handler
1626  * @phba: pointer to lpfc hba data structure.
1627  *
1628  * This routine is invoked from the worker thread to handle a HBA host
1629  * attention link event.
1630  **/
1631 void
1632 lpfc_handle_latt(struct lpfc_hba *phba)
1633 {
1634         struct lpfc_vport *vport = phba->pport;
1635         struct lpfc_sli   *psli = &phba->sli;
1636         LPFC_MBOXQ_t *pmb;
1637         volatile uint32_t control;
1638         struct lpfc_dmabuf *mp;
1639         int rc = 0;
1640
1641         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1642         if (!pmb) {
1643                 rc = 1;
1644                 goto lpfc_handle_latt_err_exit;
1645         }
1646
1647         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1648         if (!mp) {
1649                 rc = 2;
1650                 goto lpfc_handle_latt_free_pmb;
1651         }
1652
1653         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1654         if (!mp->virt) {
1655                 rc = 3;
1656                 goto lpfc_handle_latt_free_mp;
1657         }
1658
1659         /* Cleanup any outstanding ELS commands */
1660         lpfc_els_flush_all_cmd(phba);
1661
1662         psli->slistat.link_event++;
1663         lpfc_read_topology(phba, pmb, mp);
1664         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1665         pmb->vport = vport;
1666         /* Block ELS IOCBs until we have processed this mbox command */
1667         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1668         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1669         if (rc == MBX_NOT_FINISHED) {
1670                 rc = 4;
1671                 goto lpfc_handle_latt_free_mbuf;
1672         }
1673
1674         /* Clear Link Attention in HA REG */
1675         spin_lock_irq(&phba->hbalock);
1676         writel(HA_LATT, phba->HAregaddr);
1677         readl(phba->HAregaddr); /* flush */
1678         spin_unlock_irq(&phba->hbalock);
1679
1680         return;
1681
1682 lpfc_handle_latt_free_mbuf:
1683         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1684         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1685 lpfc_handle_latt_free_mp:
1686         kfree(mp);
1687 lpfc_handle_latt_free_pmb:
1688         mempool_free(pmb, phba->mbox_mem_pool);
1689 lpfc_handle_latt_err_exit:
1690         /* Enable Link attention interrupts */
1691         spin_lock_irq(&phba->hbalock);
1692         psli->sli_flag |= LPFC_PROCESS_LA;
1693         control = readl(phba->HCregaddr);
1694         control |= HC_LAINT_ENA;
1695         writel(control, phba->HCregaddr);
1696         readl(phba->HCregaddr); /* flush */
1697
1698         /* Clear Link Attention in HA REG */
1699         writel(HA_LATT, phba->HAregaddr);
1700         readl(phba->HAregaddr); /* flush */
1701         spin_unlock_irq(&phba->hbalock);
1702         lpfc_linkdown(phba);
1703         phba->link_state = LPFC_HBA_ERROR;
1704
1705         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1706                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1707
1708         return;
1709 }
1710
1711 /**
1712  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1713  * @phba: pointer to lpfc hba data structure.
1714  * @vpd: pointer to the vital product data.
1715  * @len: length of the vital product data in bytes.
1716  *
1717  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1718  * an array of characters. In this routine, the ModelName, ProgramType, and
1719  * ModelDesc, etc. fields of the phba data structure will be populated.
1720  *
1721  * Return codes
1722  *   0 - pointer to the VPD passed in is NULL
1723  *   1 - success
1724  **/
1725 int
1726 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1727 {
1728         uint8_t lenlo, lenhi;
1729         int Length;
1730         int i, j;
1731         int finished = 0;
1732         int index = 0;
1733
1734         if (!vpd)
1735                 return 0;
1736
1737         /* Vital Product */
1738         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1739                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1740                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1741                         (uint32_t) vpd[3]);
1742         while (!finished && (index < (len - 4))) {
1743                 switch (vpd[index]) {
1744                 case 0x82:
1745                 case 0x91:
1746                         index += 1;
1747                         lenlo = vpd[index];
1748                         index += 1;
1749                         lenhi = vpd[index];
1750                         index += 1;
1751                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1752                         index += i;
1753                         break;
1754                 case 0x90:
1755                         index += 1;
1756                         lenlo = vpd[index];
1757                         index += 1;
1758                         lenhi = vpd[index];
1759                         index += 1;
1760                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1761                         if (Length > len - index)
1762                                 Length = len - index;
1763                         while (Length > 0) {
1764                         /* Look for Serial Number */
1765                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1766                                 index += 2;
1767                                 i = vpd[index];
1768                                 index += 1;
1769                                 j = 0;
1770                                 Length -= (3+i);
1771                                 while(i--) {
1772                                         phba->SerialNumber[j++] = vpd[index++];
1773                                         if (j == 31)
1774                                                 break;
1775                                 }
1776                                 phba->SerialNumber[j] = 0;
1777                                 continue;
1778                         }
1779                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1780                                 phba->vpd_flag |= VPD_MODEL_DESC;
1781                                 index += 2;
1782                                 i = vpd[index];
1783                                 index += 1;
1784                                 j = 0;
1785                                 Length -= (3+i);
1786                                 while(i--) {
1787                                         phba->ModelDesc[j++] = vpd[index++];
1788                                         if (j == 255)
1789                                                 break;
1790                                 }
1791                                 phba->ModelDesc[j] = 0;
1792                                 continue;
1793                         }
1794                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1795                                 phba->vpd_flag |= VPD_MODEL_NAME;
1796                                 index += 2;
1797                                 i = vpd[index];
1798                                 index += 1;
1799                                 j = 0;
1800                                 Length -= (3+i);
1801                                 while(i--) {
1802                                         phba->ModelName[j++] = vpd[index++];
1803                                         if (j == 79)
1804                                                 break;
1805                                 }
1806                                 phba->ModelName[j] = 0;
1807                                 continue;
1808                         }
1809                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1810                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1811                                 index += 2;
1812                                 i = vpd[index];
1813                                 index += 1;
1814                                 j = 0;
1815                                 Length -= (3+i);
1816                                 while(i--) {
1817                                         phba->ProgramType[j++] = vpd[index++];
1818                                         if (j == 255)
1819                                                 break;
1820                                 }
1821                                 phba->ProgramType[j] = 0;
1822                                 continue;
1823                         }
1824                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1825                                 phba->vpd_flag |= VPD_PORT;
1826                                 index += 2;
1827                                 i = vpd[index];
1828                                 index += 1;
1829                                 j = 0;
1830                                 Length -= (3+i);
1831                                 while(i--) {
1832                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1833                                             (phba->sli4_hba.pport_name_sta ==
1834                                              LPFC_SLI4_PPNAME_GET)) {
1835                                                 j++;
1836                                                 index++;
1837                                         } else
1838                                                 phba->Port[j++] = vpd[index++];
1839                                         if (j == 19)
1840                                                 break;
1841                                 }
1842                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1843                                     (phba->sli4_hba.pport_name_sta ==
1844                                      LPFC_SLI4_PPNAME_NON))
1845                                         phba->Port[j] = 0;
1846                                 continue;
1847                         }
1848                         else {
1849                                 index += 2;
1850                                 i = vpd[index];
1851                                 index += 1;
1852                                 index += i;
1853                                 Length -= (3 + i);
1854                         }
1855                 }
1856                 finished = 0;
1857                 break;
1858                 case 0x78:
1859                         finished = 1;
1860                         break;
1861                 default:
1862                         index ++;
1863                         break;
1864                 }
1865         }
1866
1867         return(1);
1868 }
1869
1870 /**
1871  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1872  * @phba: pointer to lpfc hba data structure.
1873  * @mdp: pointer to the data structure to hold the derived model name.
1874  * @descp: pointer to the data structure to hold the derived description.
1875  *
1876  * This routine retrieves HBA's description based on its registered PCI device
1877  * ID. The @descp passed into this function points to an array of 256 chars. It
1878  * shall be returned with the model name, maximum speed, and the host bus type.
1879  * The @mdp passed into this function points to an array of 80 chars. When the
1880  * function returns, the @mdp will be filled with the model name.
1881  **/
1882 static void
1883 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1884 {
1885         lpfc_vpd_t *vp;
1886         uint16_t dev_id = phba->pcidev->device;
1887         int max_speed;
1888         int GE = 0;
1889         int oneConnect = 0; /* default is not a oneConnect */
1890         struct {
1891                 char *name;
1892                 char *bus;
1893                 char *function;
1894         } m = {"<Unknown>", "", ""};
1895
1896         if (mdp && mdp[0] != '\0'
1897                 && descp && descp[0] != '\0')
1898                 return;
1899
1900         if (phba->lmt & LMT_16Gb)
1901                 max_speed = 16;
1902         else if (phba->lmt & LMT_10Gb)
1903                 max_speed = 10;
1904         else if (phba->lmt & LMT_8Gb)
1905                 max_speed = 8;
1906         else if (phba->lmt & LMT_4Gb)
1907                 max_speed = 4;
1908         else if (phba->lmt & LMT_2Gb)
1909                 max_speed = 2;
1910         else if (phba->lmt & LMT_1Gb)
1911                 max_speed = 1;
1912         else
1913                 max_speed = 0;
1914
1915         vp = &phba->vpd;
1916
1917         switch (dev_id) {
1918         case PCI_DEVICE_ID_FIREFLY:
1919                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1920                 break;
1921         case PCI_DEVICE_ID_SUPERFLY:
1922                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1923                         m = (typeof(m)){"LP7000", "PCI",
1924                                         "Fibre Channel Adapter"};
1925                 else
1926                         m = (typeof(m)){"LP7000E", "PCI",
1927                                         "Fibre Channel Adapter"};
1928                 break;
1929         case PCI_DEVICE_ID_DRAGONFLY:
1930                 m = (typeof(m)){"LP8000", "PCI",
1931                                 "Fibre Channel Adapter"};
1932                 break;
1933         case PCI_DEVICE_ID_CENTAUR:
1934                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1935                         m = (typeof(m)){"LP9002", "PCI",
1936                                         "Fibre Channel Adapter"};
1937                 else
1938                         m = (typeof(m)){"LP9000", "PCI",
1939                                         "Fibre Channel Adapter"};
1940                 break;
1941         case PCI_DEVICE_ID_RFLY:
1942                 m = (typeof(m)){"LP952", "PCI",
1943                                 "Fibre Channel Adapter"};
1944                 break;
1945         case PCI_DEVICE_ID_PEGASUS:
1946                 m = (typeof(m)){"LP9802", "PCI-X",
1947                                 "Fibre Channel Adapter"};
1948                 break;
1949         case PCI_DEVICE_ID_THOR:
1950                 m = (typeof(m)){"LP10000", "PCI-X",
1951                                 "Fibre Channel Adapter"};
1952                 break;
1953         case PCI_DEVICE_ID_VIPER:
1954                 m = (typeof(m)){"LPX1000",  "PCI-X",
1955                                 "Fibre Channel Adapter"};
1956                 break;
1957         case PCI_DEVICE_ID_PFLY:
1958                 m = (typeof(m)){"LP982", "PCI-X",
1959                                 "Fibre Channel Adapter"};
1960                 break;
1961         case PCI_DEVICE_ID_TFLY:
1962                 m = (typeof(m)){"LP1050", "PCI-X",
1963                                 "Fibre Channel Adapter"};
1964                 break;
1965         case PCI_DEVICE_ID_HELIOS:
1966                 m = (typeof(m)){"LP11000", "PCI-X2",
1967                                 "Fibre Channel Adapter"};
1968                 break;
1969         case PCI_DEVICE_ID_HELIOS_SCSP:
1970                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1971                                 "Fibre Channel Adapter"};
1972                 break;
1973         case PCI_DEVICE_ID_HELIOS_DCSP:
1974                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1975                                 "Fibre Channel Adapter"};
1976                 break;
1977         case PCI_DEVICE_ID_NEPTUNE:
1978                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1979                 break;
1980         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1981                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1982                 break;
1983         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1984                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1985                 break;
1986         case PCI_DEVICE_ID_BMID:
1987                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1988                 break;
1989         case PCI_DEVICE_ID_BSMB:
1990                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1991                 break;
1992         case PCI_DEVICE_ID_ZEPHYR:
1993                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1994                 break;
1995         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1996                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1997                 break;
1998         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1999                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2000                 GE = 1;
2001                 break;
2002         case PCI_DEVICE_ID_ZMID:
2003                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2004                 break;
2005         case PCI_DEVICE_ID_ZSMB:
2006                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2007                 break;
2008         case PCI_DEVICE_ID_LP101:
2009                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
2010                 break;
2011         case PCI_DEVICE_ID_LP10000S:
2012                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
2013                 break;
2014         case PCI_DEVICE_ID_LP11000S:
2015                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
2016                 break;
2017         case PCI_DEVICE_ID_LPE11000S:
2018                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
2019                 break;
2020         case PCI_DEVICE_ID_SAT:
2021                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2022                 break;
2023         case PCI_DEVICE_ID_SAT_MID:
2024                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2025                 break;
2026         case PCI_DEVICE_ID_SAT_SMB:
2027                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2028                 break;
2029         case PCI_DEVICE_ID_SAT_DCSP:
2030                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2031                 break;
2032         case PCI_DEVICE_ID_SAT_SCSP:
2033                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2034                 break;
2035         case PCI_DEVICE_ID_SAT_S:
2036                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2037                 break;
2038         case PCI_DEVICE_ID_HORNET:
2039                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
2040                 GE = 1;
2041                 break;
2042         case PCI_DEVICE_ID_PROTEUS_VF:
2043                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2044                                 "Fibre Channel Adapter"};
2045                 break;
2046         case PCI_DEVICE_ID_PROTEUS_PF:
2047                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2048                                 "Fibre Channel Adapter"};
2049                 break;
2050         case PCI_DEVICE_ID_PROTEUS_S:
2051                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2052                                 "Fibre Channel Adapter"};
2053                 break;
2054         case PCI_DEVICE_ID_TIGERSHARK:
2055                 oneConnect = 1;
2056                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2057                 break;
2058         case PCI_DEVICE_ID_TOMCAT:
2059                 oneConnect = 1;
2060                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2061                 break;
2062         case PCI_DEVICE_ID_FALCON:
2063                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2064                                 "EmulexSecure Fibre"};
2065                 break;
2066         case PCI_DEVICE_ID_BALIUS:
2067                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2068                                 "Fibre Channel Adapter"};
2069                 break;
2070         case PCI_DEVICE_ID_LANCER_FC:
2071         case PCI_DEVICE_ID_LANCER_FC_VF:
2072                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2073                 break;
2074         case PCI_DEVICE_ID_LANCER_FCOE:
2075         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2076                 oneConnect = 1;
2077                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2078                 break;
2079         case PCI_DEVICE_ID_SKYHAWK:
2080         case PCI_DEVICE_ID_SKYHAWK_VF:
2081                 oneConnect = 1;
2082                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2083                 break;
2084         default:
2085                 m = (typeof(m)){"Unknown", "", ""};
2086                 break;
2087         }
2088
2089         if (mdp && mdp[0] == '\0')
2090                 snprintf(mdp, 79,"%s", m.name);
2091         /*
2092          * oneConnect hba requires special processing, they are all initiators
2093          * and we put the port number on the end
2094          */
2095         if (descp && descp[0] == '\0') {
2096                 if (oneConnect)
2097                         snprintf(descp, 255,
2098                                 "Emulex OneConnect %s, %s Initiator %s",
2099                                 m.name, m.function,
2100                                 phba->Port);
2101                 else if (max_speed == 0)
2102                         snprintf(descp, 255,
2103                                 "Emulex %s %s %s ",
2104                                 m.name, m.bus, m.function);
2105                 else
2106                         snprintf(descp, 255,
2107                                 "Emulex %s %d%s %s %s",
2108                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2109                                 m.bus, m.function);
2110         }
2111 }
2112
2113 /**
2114  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2115  * @phba: pointer to lpfc hba data structure.
2116  * @pring: pointer to a IOCB ring.
2117  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2118  *
2119  * This routine posts a given number of IOCBs with the associated DMA buffer
2120  * descriptors specified by the cnt argument to the given IOCB ring.
2121  *
2122  * Return codes
2123  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2124  **/
2125 int
2126 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2127 {
2128         IOCB_t *icmd;
2129         struct lpfc_iocbq *iocb;
2130         struct lpfc_dmabuf *mp1, *mp2;
2131
2132         cnt += pring->missbufcnt;
2133
2134         /* While there are buffers to post */
2135         while (cnt > 0) {
2136                 /* Allocate buffer for  command iocb */
2137                 iocb = lpfc_sli_get_iocbq(phba);
2138                 if (iocb == NULL) {
2139                         pring->missbufcnt = cnt;
2140                         return cnt;
2141                 }
2142                 icmd = &iocb->iocb;
2143
2144                 /* 2 buffers can be posted per command */
2145                 /* Allocate buffer to post */
2146                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2147                 if (mp1)
2148                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2149                 if (!mp1 || !mp1->virt) {
2150                         kfree(mp1);
2151                         lpfc_sli_release_iocbq(phba, iocb);
2152                         pring->missbufcnt = cnt;
2153                         return cnt;
2154                 }
2155
2156                 INIT_LIST_HEAD(&mp1->list);
2157                 /* Allocate buffer to post */
2158                 if (cnt > 1) {
2159                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2160                         if (mp2)
2161                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2162                                                             &mp2->phys);
2163                         if (!mp2 || !mp2->virt) {
2164                                 kfree(mp2);
2165                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2166                                 kfree(mp1);
2167                                 lpfc_sli_release_iocbq(phba, iocb);
2168                                 pring->missbufcnt = cnt;
2169                                 return cnt;
2170                         }
2171
2172                         INIT_LIST_HEAD(&mp2->list);
2173                 } else {
2174                         mp2 = NULL;
2175                 }
2176
2177                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2178                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2179                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2180                 icmd->ulpBdeCount = 1;
2181                 cnt--;
2182                 if (mp2) {
2183                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2184                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2185                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2186                         cnt--;
2187                         icmd->ulpBdeCount = 2;
2188                 }
2189
2190                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2191                 icmd->ulpLe = 1;
2192
2193                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2194                     IOCB_ERROR) {
2195                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2196                         kfree(mp1);
2197                         cnt++;
2198                         if (mp2) {
2199                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2200                                 kfree(mp2);
2201                                 cnt++;
2202                         }
2203                         lpfc_sli_release_iocbq(phba, iocb);
2204                         pring->missbufcnt = cnt;
2205                         return cnt;
2206                 }
2207                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2208                 if (mp2)
2209                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2210         }
2211         pring->missbufcnt = 0;
2212         return 0;
2213 }
2214
2215 /**
2216  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2217  * @phba: pointer to lpfc hba data structure.
2218  *
2219  * This routine posts initial receive IOCB buffers to the ELS ring. The
2220  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2221  * set to 64 IOCBs.
2222  *
2223  * Return codes
2224  *   0 - success (currently always success)
2225  **/
2226 static int
2227 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2228 {
2229         struct lpfc_sli *psli = &phba->sli;
2230
2231         /* Ring 0, ELS / CT buffers */
2232         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2233         /* Ring 2 - FCP no buffers needed */
2234
2235         return 0;
2236 }
2237
2238 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2239
2240 /**
2241  * lpfc_sha_init - Set up initial array of hash table entries
2242  * @HashResultPointer: pointer to an array as hash table.
2243  *
2244  * This routine sets up the initial values to the array of hash table entries
2245  * for the LC HBAs.
2246  **/
2247 static void
2248 lpfc_sha_init(uint32_t * HashResultPointer)
2249 {
2250         HashResultPointer[0] = 0x67452301;
2251         HashResultPointer[1] = 0xEFCDAB89;
2252         HashResultPointer[2] = 0x98BADCFE;
2253         HashResultPointer[3] = 0x10325476;
2254         HashResultPointer[4] = 0xC3D2E1F0;
2255 }
2256
2257 /**
2258  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2259  * @HashResultPointer: pointer to an initial/result hash table.
2260  * @HashWorkingPointer: pointer to an working hash table.
2261  *
2262  * This routine iterates an initial hash table pointed by @HashResultPointer
2263  * with the values from the working hash table pointeed by @HashWorkingPointer.
2264  * The results are putting back to the initial hash table, returned through
2265  * the @HashResultPointer as the result hash table.
2266  **/
2267 static void
2268 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2269 {
2270         int t;
2271         uint32_t TEMP;
2272         uint32_t A, B, C, D, E;
2273         t = 16;
2274         do {
2275                 HashWorkingPointer[t] =
2276                     S(1,
2277                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2278                                                                      8] ^
2279                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2280         } while (++t <= 79);
2281         t = 0;
2282         A = HashResultPointer[0];
2283         B = HashResultPointer[1];
2284         C = HashResultPointer[2];
2285         D = HashResultPointer[3];
2286         E = HashResultPointer[4];
2287
2288         do {
2289                 if (t < 20) {
2290                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2291                 } else if (t < 40) {
2292                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2293                 } else if (t < 60) {
2294                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2295                 } else {
2296                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2297                 }
2298                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2299                 E = D;
2300                 D = C;
2301                 C = S(30, B);
2302                 B = A;
2303                 A = TEMP;
2304         } while (++t <= 79);
2305
2306         HashResultPointer[0] += A;
2307         HashResultPointer[1] += B;
2308         HashResultPointer[2] += C;
2309         HashResultPointer[3] += D;
2310         HashResultPointer[4] += E;
2311
2312 }
2313
2314 /**
2315  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2316  * @RandomChallenge: pointer to the entry of host challenge random number array.
2317  * @HashWorking: pointer to the entry of the working hash array.
2318  *
2319  * This routine calculates the working hash array referred by @HashWorking
2320  * from the challenge random numbers associated with the host, referred by
2321  * @RandomChallenge. The result is put into the entry of the working hash
2322  * array and returned by reference through @HashWorking.
2323  **/
2324 static void
2325 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2326 {
2327         *HashWorking = (*RandomChallenge ^ *HashWorking);
2328 }
2329
2330 /**
2331  * lpfc_hba_init - Perform special handling for LC HBA initialization
2332  * @phba: pointer to lpfc hba data structure.
2333  * @hbainit: pointer to an array of unsigned 32-bit integers.
2334  *
2335  * This routine performs the special handling for LC HBA initialization.
2336  **/
2337 void
2338 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2339 {
2340         int t;
2341         uint32_t *HashWorking;
2342         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2343
2344         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2345         if (!HashWorking)
2346                 return;
2347
2348         HashWorking[0] = HashWorking[78] = *pwwnn++;
2349         HashWorking[1] = HashWorking[79] = *pwwnn;
2350
2351         for (t = 0; t < 7; t++)
2352                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2353
2354         lpfc_sha_init(hbainit);
2355         lpfc_sha_iterate(hbainit, HashWorking);
2356         kfree(HashWorking);
2357 }
2358
2359 /**
2360  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2361  * @vport: pointer to a virtual N_Port data structure.
2362  *
2363  * This routine performs the necessary cleanups before deleting the @vport.
2364  * It invokes the discovery state machine to perform necessary state
2365  * transitions and to release the ndlps associated with the @vport. Note,
2366  * the physical port is treated as @vport 0.
2367  **/
2368 void
2369 lpfc_cleanup(struct lpfc_vport *vport)
2370 {
2371         struct lpfc_hba   *phba = vport->phba;
2372         struct lpfc_nodelist *ndlp, *next_ndlp;
2373         int i = 0;
2374
2375         if (phba->link_state > LPFC_LINK_DOWN)
2376                 lpfc_port_link_failure(vport);
2377
2378         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2379                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2380                         ndlp = lpfc_enable_node(vport, ndlp,
2381                                                 NLP_STE_UNUSED_NODE);
2382                         if (!ndlp)
2383                                 continue;
2384                         spin_lock_irq(&phba->ndlp_lock);
2385                         NLP_SET_FREE_REQ(ndlp);
2386                         spin_unlock_irq(&phba->ndlp_lock);
2387                         /* Trigger the release of the ndlp memory */
2388                         lpfc_nlp_put(ndlp);
2389                         continue;
2390                 }
2391                 spin_lock_irq(&phba->ndlp_lock);
2392                 if (NLP_CHK_FREE_REQ(ndlp)) {
2393                         /* The ndlp should not be in memory free mode already */
2394                         spin_unlock_irq(&phba->ndlp_lock);
2395                         continue;
2396                 } else
2397                         /* Indicate request for freeing ndlp memory */
2398                         NLP_SET_FREE_REQ(ndlp);
2399                 spin_unlock_irq(&phba->ndlp_lock);
2400
2401                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2402                     ndlp->nlp_DID == Fabric_DID) {
2403                         /* Just free up ndlp with Fabric_DID for vports */
2404                         lpfc_nlp_put(ndlp);
2405                         continue;
2406                 }
2407
2408                 /* take care of nodes in unused state before the state
2409                  * machine taking action.
2410                  */
2411                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2412                         lpfc_nlp_put(ndlp);
2413                         continue;
2414                 }
2415
2416                 if (ndlp->nlp_type & NLP_FABRIC)
2417                         lpfc_disc_state_machine(vport, ndlp, NULL,
2418                                         NLP_EVT_DEVICE_RECOVERY);
2419
2420                 lpfc_disc_state_machine(vport, ndlp, NULL,
2421                                              NLP_EVT_DEVICE_RM);
2422         }
2423
2424         /* At this point, ALL ndlp's should be gone
2425          * because of the previous NLP_EVT_DEVICE_RM.
2426          * Lets wait for this to happen, if needed.
2427          */
2428         while (!list_empty(&vport->fc_nodes)) {
2429                 if (i++ > 3000) {
2430                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2431                                 "0233 Nodelist not empty\n");
2432                         list_for_each_entry_safe(ndlp, next_ndlp,
2433                                                 &vport->fc_nodes, nlp_listp) {
2434                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2435                                                 LOG_NODE,
2436                                                 "0282 did:x%x ndlp:x%p "
2437                                                 "usgmap:x%x refcnt:%d\n",
2438                                                 ndlp->nlp_DID, (void *)ndlp,
2439                                                 ndlp->nlp_usg_map,
2440                                                 atomic_read(
2441                                                         &ndlp->kref.refcount));
2442                         }
2443                         break;
2444                 }
2445
2446                 /* Wait for any activity on ndlps to settle */
2447                 msleep(10);
2448         }
2449         lpfc_cleanup_vports_rrqs(vport, NULL);
2450 }
2451
2452 /**
2453  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2454  * @vport: pointer to a virtual N_Port data structure.
2455  *
2456  * This routine stops all the timers associated with a @vport. This function
2457  * is invoked before disabling or deleting a @vport. Note that the physical
2458  * port is treated as @vport 0.
2459  **/
2460 void
2461 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2462 {
2463         del_timer_sync(&vport->els_tmofunc);
2464         del_timer_sync(&vport->fc_fdmitmo);
2465         del_timer_sync(&vport->delayed_disc_tmo);
2466         lpfc_can_disctmo(vport);
2467         return;
2468 }
2469
2470 /**
2471  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2472  * @phba: pointer to lpfc hba data structure.
2473  *
2474  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2475  * caller of this routine should already hold the host lock.
2476  **/
2477 void
2478 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2479 {
2480         /* Clear pending FCF rediscovery wait flag */
2481         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2482
2483         /* Now, try to stop the timer */
2484         del_timer(&phba->fcf.redisc_wait);
2485 }
2486
2487 /**
2488  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2489  * @phba: pointer to lpfc hba data structure.
2490  *
2491  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2492  * checks whether the FCF rediscovery wait timer is pending with the host
2493  * lock held before proceeding with disabling the timer and clearing the
2494  * wait timer pendig flag.
2495  **/
2496 void
2497 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2498 {
2499         spin_lock_irq(&phba->hbalock);
2500         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2501                 /* FCF rediscovery timer already fired or stopped */
2502                 spin_unlock_irq(&phba->hbalock);
2503                 return;
2504         }
2505         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2506         /* Clear failover in progress flags */
2507         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2508         spin_unlock_irq(&phba->hbalock);
2509 }
2510
2511 /**
2512  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2513  * @phba: pointer to lpfc hba data structure.
2514  *
2515  * This routine stops all the timers associated with a HBA. This function is
2516  * invoked before either putting a HBA offline or unloading the driver.
2517  **/
2518 void
2519 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2520 {
2521         lpfc_stop_vport_timers(phba->pport);
2522         del_timer_sync(&phba->sli.mbox_tmo);
2523         del_timer_sync(&phba->fabric_block_timer);
2524         del_timer_sync(&phba->eratt_poll);
2525         del_timer_sync(&phba->hb_tmofunc);
2526         if (phba->sli_rev == LPFC_SLI_REV4) {
2527                 del_timer_sync(&phba->rrq_tmr);
2528                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2529         }
2530         phba->hb_outstanding = 0;
2531
2532         switch (phba->pci_dev_grp) {
2533         case LPFC_PCI_DEV_LP:
2534                 /* Stop any LightPulse device specific driver timers */
2535                 del_timer_sync(&phba->fcp_poll_timer);
2536                 break;
2537         case LPFC_PCI_DEV_OC:
2538                 /* Stop any OneConnect device sepcific driver timers */
2539                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2540                 break;
2541         default:
2542                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2543                                 "0297 Invalid device group (x%x)\n",
2544                                 phba->pci_dev_grp);
2545                 break;
2546         }
2547         return;
2548 }
2549
2550 /**
2551  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2552  * @phba: pointer to lpfc hba data structure.
2553  *
2554  * This routine marks a HBA's management interface as blocked. Once the HBA's
2555  * management interface is marked as blocked, all the user space access to
2556  * the HBA, whether they are from sysfs interface or libdfc interface will
2557  * all be blocked. The HBA is set to block the management interface when the
2558  * driver prepares the HBA interface for online or offline.
2559  **/
2560 static void
2561 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2562 {
2563         unsigned long iflag;
2564         uint8_t actcmd = MBX_HEARTBEAT;
2565         unsigned long timeout;
2566
2567         spin_lock_irqsave(&phba->hbalock, iflag);
2568         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2569         spin_unlock_irqrestore(&phba->hbalock, iflag);
2570         if (mbx_action == LPFC_MBX_NO_WAIT)
2571                 return;
2572         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2573         spin_lock_irqsave(&phba->hbalock, iflag);
2574         if (phba->sli.mbox_active) {
2575                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2576                 /* Determine how long we might wait for the active mailbox
2577                  * command to be gracefully completed by firmware.
2578                  */
2579                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2580                                 phba->sli.mbox_active) * 1000) + jiffies;
2581         }
2582         spin_unlock_irqrestore(&phba->hbalock, iflag);
2583
2584         /* Wait for the outstnading mailbox command to complete */
2585         while (phba->sli.mbox_active) {
2586                 /* Check active mailbox complete status every 2ms */
2587                 msleep(2);
2588                 if (time_after(jiffies, timeout)) {
2589                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2590                                 "2813 Mgmt IO is Blocked %x "
2591                                 "- mbox cmd %x still active\n",
2592                                 phba->sli.sli_flag, actcmd);
2593                         break;
2594                 }
2595         }
2596 }
2597
2598 /**
2599  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2600  * @phba: pointer to lpfc hba data structure.
2601  *
2602  * Allocate RPIs for all active remote nodes. This is needed whenever
2603  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2604  * is to fixup the temporary rpi assignments.
2605  **/
2606 void
2607 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2608 {
2609         struct lpfc_nodelist  *ndlp, *next_ndlp;
2610         struct lpfc_vport **vports;
2611         int i;
2612
2613         if (phba->sli_rev != LPFC_SLI_REV4)
2614                 return;
2615
2616         vports = lpfc_create_vport_work_array(phba);
2617         if (vports != NULL) {
2618                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2619                         if (vports[i]->load_flag & FC_UNLOADING)
2620                                 continue;
2621
2622                         list_for_each_entry_safe(ndlp, next_ndlp,
2623                                                  &vports[i]->fc_nodes,
2624                                                  nlp_listp) {
2625                                 if (NLP_CHK_NODE_ACT(ndlp))
2626                                         ndlp->nlp_rpi =
2627                                                 lpfc_sli4_alloc_rpi(phba);
2628                         }
2629                 }
2630         }
2631         lpfc_destroy_vport_work_array(phba, vports);
2632 }
2633
2634 /**
2635  * lpfc_online - Initialize and bring a HBA online
2636  * @phba: pointer to lpfc hba data structure.
2637  *
2638  * This routine initializes the HBA and brings a HBA online. During this
2639  * process, the management interface is blocked to prevent user space access
2640  * to the HBA interfering with the driver initialization.
2641  *
2642  * Return codes
2643  *   0 - successful
2644  *   1 - failed
2645  **/
2646 int
2647 lpfc_online(struct lpfc_hba *phba)
2648 {
2649         struct lpfc_vport *vport;
2650         struct lpfc_vport **vports;
2651         int i;
2652         bool vpis_cleared = false;
2653
2654         if (!phba)
2655                 return 0;
2656         vport = phba->pport;
2657
2658         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2659                 return 0;
2660
2661         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2662                         "0458 Bring Adapter online\n");
2663
2664         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2665
2666         if (!lpfc_sli_queue_setup(phba)) {
2667                 lpfc_unblock_mgmt_io(phba);
2668                 return 1;
2669         }
2670
2671         if (phba->sli_rev == LPFC_SLI_REV4) {
2672                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2673                         lpfc_unblock_mgmt_io(phba);
2674                         return 1;
2675                 }
2676                 spin_lock_irq(&phba->hbalock);
2677                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2678                         vpis_cleared = true;
2679                 spin_unlock_irq(&phba->hbalock);
2680         } else {
2681                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2682                         lpfc_unblock_mgmt_io(phba);
2683                         return 1;
2684                 }
2685         }
2686
2687         vports = lpfc_create_vport_work_array(phba);
2688         if (vports != NULL)
2689                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2690                         struct Scsi_Host *shost;
2691                         shost = lpfc_shost_from_vport(vports[i]);
2692                         spin_lock_irq(shost->host_lock);
2693                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2694                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2695                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2696                         if (phba->sli_rev == LPFC_SLI_REV4) {
2697                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2698                                 if ((vpis_cleared) &&
2699                                     (vports[i]->port_type !=
2700                                         LPFC_PHYSICAL_PORT))
2701                                         vports[i]->vpi = 0;
2702                         }
2703                         spin_unlock_irq(shost->host_lock);
2704                 }
2705                 lpfc_destroy_vport_work_array(phba, vports);
2706
2707         lpfc_unblock_mgmt_io(phba);
2708         return 0;
2709 }
2710
2711 /**
2712  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2713  * @phba: pointer to lpfc hba data structure.
2714  *
2715  * This routine marks a HBA's management interface as not blocked. Once the
2716  * HBA's management interface is marked as not blocked, all the user space
2717  * access to the HBA, whether they are from sysfs interface or libdfc
2718  * interface will be allowed. The HBA is set to block the management interface
2719  * when the driver prepares the HBA interface for online or offline and then
2720  * set to unblock the management interface afterwards.
2721  **/
2722 void
2723 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2724 {
2725         unsigned long iflag;
2726
2727         spin_lock_irqsave(&phba->hbalock, iflag);
2728         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2729         spin_unlock_irqrestore(&phba->hbalock, iflag);
2730 }
2731
2732 /**
2733  * lpfc_offline_prep - Prepare a HBA to be brought offline
2734  * @phba: pointer to lpfc hba data structure.
2735  *
2736  * This routine is invoked to prepare a HBA to be brought offline. It performs
2737  * unregistration login to all the nodes on all vports and flushes the mailbox
2738  * queue to make it ready to be brought offline.
2739  **/
2740 void
2741 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2742 {
2743         struct lpfc_vport *vport = phba->pport;
2744         struct lpfc_nodelist  *ndlp, *next_ndlp;
2745         struct lpfc_vport **vports;
2746         struct Scsi_Host *shost;
2747         int i;
2748
2749         if (vport->fc_flag & FC_OFFLINE_MODE)
2750                 return;
2751
2752         lpfc_block_mgmt_io(phba, mbx_action);
2753
2754         lpfc_linkdown(phba);
2755
2756         /* Issue an unreg_login to all nodes on all vports */
2757         vports = lpfc_create_vport_work_array(phba);
2758         if (vports != NULL) {
2759                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2760                         if (vports[i]->load_flag & FC_UNLOADING)
2761                                 continue;
2762                         shost = lpfc_shost_from_vport(vports[i]);
2763                         spin_lock_irq(shost->host_lock);
2764                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2765                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2766                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2767                         spin_unlock_irq(shost->host_lock);
2768
2769                         shost = lpfc_shost_from_vport(vports[i]);
2770                         list_for_each_entry_safe(ndlp, next_ndlp,
2771                                                  &vports[i]->fc_nodes,
2772                                                  nlp_listp) {
2773                                 if (!NLP_CHK_NODE_ACT(ndlp))
2774                                         continue;
2775                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2776                                         continue;
2777                                 if (ndlp->nlp_type & NLP_FABRIC) {
2778                                         lpfc_disc_state_machine(vports[i], ndlp,
2779                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2780                                         lpfc_disc_state_machine(vports[i], ndlp,
2781                                                 NULL, NLP_EVT_DEVICE_RM);
2782                                 }
2783                                 spin_lock_irq(shost->host_lock);
2784                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2785                                 spin_unlock_irq(shost->host_lock);
2786                                 /*
2787                                  * Whenever an SLI4 port goes offline, free the
2788                                  * RPI. Get a new RPI when the adapter port
2789                                  * comes back online.
2790                                  */
2791                                 if (phba->sli_rev == LPFC_SLI_REV4)
2792                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2793                                 lpfc_unreg_rpi(vports[i], ndlp);
2794                         }
2795                 }
2796         }
2797         lpfc_destroy_vport_work_array(phba, vports);
2798
2799         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2800 }
2801
2802 /**
2803  * lpfc_offline - Bring a HBA offline
2804  * @phba: pointer to lpfc hba data structure.
2805  *
2806  * This routine actually brings a HBA offline. It stops all the timers
2807  * associated with the HBA, brings down the SLI layer, and eventually
2808  * marks the HBA as in offline state for the upper layer protocol.
2809  **/
2810 void
2811 lpfc_offline(struct lpfc_hba *phba)
2812 {
2813         struct Scsi_Host  *shost;
2814         struct lpfc_vport **vports;
2815         int i;
2816
2817         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2818                 return;
2819
2820         /* stop port and all timers associated with this hba */
2821         lpfc_stop_port(phba);
2822         vports = lpfc_create_vport_work_array(phba);
2823         if (vports != NULL)
2824                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2825                         lpfc_stop_vport_timers(vports[i]);
2826         lpfc_destroy_vport_work_array(phba, vports);
2827         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2828                         "0460 Bring Adapter offline\n");
2829         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2830            now.  */
2831         lpfc_sli_hba_down(phba);
2832         spin_lock_irq(&phba->hbalock);
2833         phba->work_ha = 0;
2834         spin_unlock_irq(&phba->hbalock);
2835         vports = lpfc_create_vport_work_array(phba);
2836         if (vports != NULL)
2837                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2838                         shost = lpfc_shost_from_vport(vports[i]);
2839                         spin_lock_irq(shost->host_lock);
2840                         vports[i]->work_port_events = 0;
2841                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2842                         spin_unlock_irq(shost->host_lock);
2843                 }
2844         lpfc_destroy_vport_work_array(phba, vports);
2845 }
2846
2847 /**
2848  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2849  * @phba: pointer to lpfc hba data structure.
2850  *
2851  * This routine is to free all the SCSI buffers and IOCBs from the driver
2852  * list back to kernel. It is called from lpfc_pci_remove_one to free
2853  * the internal resources before the device is removed from the system.
2854  **/
2855 static void
2856 lpfc_scsi_free(struct lpfc_hba *phba)
2857 {
2858         struct lpfc_scsi_buf *sb, *sb_next;
2859         struct lpfc_iocbq *io, *io_next;
2860
2861         spin_lock_irq(&phba->hbalock);
2862
2863         /* Release all the lpfc_scsi_bufs maintained by this host. */
2864
2865         spin_lock(&phba->scsi_buf_list_put_lock);
2866         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
2867                                  list) {
2868                 list_del(&sb->list);
2869                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2870                               sb->dma_handle);
2871                 kfree(sb);
2872                 phba->total_scsi_bufs--;
2873         }
2874         spin_unlock(&phba->scsi_buf_list_put_lock);
2875
2876         spin_lock(&phba->scsi_buf_list_get_lock);
2877         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
2878                                  list) {
2879                 list_del(&sb->list);
2880                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2881                               sb->dma_handle);
2882                 kfree(sb);
2883                 phba->total_scsi_bufs--;
2884         }
2885         spin_unlock(&phba->scsi_buf_list_get_lock);
2886
2887         /* Release all the lpfc_iocbq entries maintained by this host. */
2888         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2889                 list_del(&io->list);
2890                 kfree(io);
2891                 phba->total_iocbq_bufs--;
2892         }
2893
2894         spin_unlock_irq(&phba->hbalock);
2895 }
2896
2897 /**
2898  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
2899  * @phba: pointer to lpfc hba data structure.
2900  *
2901  * This routine first calculates the sizes of the current els and allocated
2902  * scsi sgl lists, and then goes through all sgls to updates the physical
2903  * XRIs assigned due to port function reset. During port initialization, the
2904  * current els and allocated scsi sgl lists are 0s.
2905  *
2906  * Return codes
2907  *   0 - successful (for now, it always returns 0)
2908  **/
2909 int
2910 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
2911 {
2912         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
2913         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
2914         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
2915         LIST_HEAD(els_sgl_list);
2916         LIST_HEAD(scsi_sgl_list);
2917         int rc;
2918
2919         /*
2920          * update on pci function's els xri-sgl list
2921          */
2922         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
2923         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
2924                 /* els xri-sgl expanded */
2925                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
2926                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2927                                 "3157 ELS xri-sgl count increased from "
2928                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2929                                 els_xri_cnt);
2930                 /* allocate the additional els sgls */
2931                 for (i = 0; i < xri_cnt; i++) {
2932                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
2933                                              GFP_KERNEL);
2934                         if (sglq_entry == NULL) {
2935                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2936                                                 "2562 Failure to allocate an "
2937                                                 "ELS sgl entry:%d\n", i);
2938                                 rc = -ENOMEM;
2939                                 goto out_free_mem;
2940                         }
2941                         sglq_entry->buff_type = GEN_BUFF_TYPE;
2942                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
2943                                                            &sglq_entry->phys);
2944                         if (sglq_entry->virt == NULL) {
2945                                 kfree(sglq_entry);
2946                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2947                                                 "2563 Failure to allocate an "
2948                                                 "ELS mbuf:%d\n", i);
2949                                 rc = -ENOMEM;
2950                                 goto out_free_mem;
2951                         }
2952                         sglq_entry->sgl = sglq_entry->virt;
2953                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
2954                         sglq_entry->state = SGL_FREED;
2955                         list_add_tail(&sglq_entry->list, &els_sgl_list);
2956                 }
2957                 spin_lock_irq(&phba->hbalock);
2958                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2959                 spin_unlock_irq(&phba->hbalock);
2960         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
2961                 /* els xri-sgl shrinked */
2962                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
2963                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2964                                 "3158 ELS xri-sgl count decreased from "
2965                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2966                                 els_xri_cnt);
2967                 spin_lock_irq(&phba->hbalock);
2968                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
2969                 spin_unlock_irq(&phba->hbalock);
2970                 /* release extra els sgls from list */
2971                 for (i = 0; i < xri_cnt; i++) {
2972                         list_remove_head(&els_sgl_list,
2973                                          sglq_entry, struct lpfc_sglq, list);
2974                         if (sglq_entry) {
2975                                 lpfc_mbuf_free(phba, sglq_entry->virt,
2976                                                sglq_entry->phys);
2977                                 kfree(sglq_entry);
2978                         }
2979                 }
2980                 spin_lock_irq(&phba->hbalock);
2981                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2982                 spin_unlock_irq(&phba->hbalock);
2983         } else
2984                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2985                                 "3163 ELS xri-sgl count unchanged: %d\n",
2986                                 els_xri_cnt);
2987         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
2988
2989         /* update xris to els sgls on the list */
2990         sglq_entry = NULL;
2991         sglq_entry_next = NULL;
2992         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
2993                                  &phba->sli4_hba.lpfc_sgl_list, list) {
2994                 lxri = lpfc_sli4_next_xritag(phba);
2995                 if (lxri == NO_XRI) {
2996                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2997                                         "2400 Failed to allocate xri for "
2998                                         "ELS sgl\n");
2999                         rc = -ENOMEM;
3000                         goto out_free_mem;
3001                 }
3002                 sglq_entry->sli4_lxritag = lxri;
3003                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3004         }
3005
3006         /*
3007          * update on pci function's allocated scsi xri-sgl list
3008          */
3009         phba->total_scsi_bufs = 0;
3010
3011         /* maximum number of xris available for scsi buffers */
3012         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3013                                       els_xri_cnt;
3014
3015         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3016                         "2401 Current allocated SCSI xri-sgl count:%d, "
3017                         "maximum  SCSI xri count:%d\n",
3018                         phba->sli4_hba.scsi_xri_cnt,
3019                         phba->sli4_hba.scsi_xri_max);
3020
3021         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3022         spin_lock_irq(&phba->scsi_buf_list_put_lock);
3023         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3024         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3025         spin_unlock_irq(&phba->scsi_buf_list_put_lock);
3026         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3027
3028         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3029                 /* max scsi xri shrinked below the allocated scsi buffers */
3030                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3031                                         phba->sli4_hba.scsi_xri_max;
3032                 /* release the extra allocated scsi buffers */
3033                 for (i = 0; i < scsi_xri_cnt; i++) {
3034                         list_remove_head(&scsi_sgl_list, psb,
3035                                          struct lpfc_scsi_buf, list);
3036                         pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data,
3037                                       psb->dma_handle);
3038                         kfree(psb);
3039                 }
3040                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3041                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3042                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3043         }
3044
3045         /* update xris associated to remaining allocated scsi buffers */
3046         psb = NULL;
3047         psb_next = NULL;
3048         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3049                 lxri = lpfc_sli4_next_xritag(phba);
3050                 if (lxri == NO_XRI) {
3051                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3052                                         "2560 Failed to allocate xri for "
3053                                         "scsi buffer\n");
3054                         rc = -ENOMEM;
3055                         goto out_free_mem;
3056                 }
3057                 psb->cur_iocbq.sli4_lxritag = lxri;
3058                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3059         }
3060         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3061         spin_lock_irq(&phba->scsi_buf_list_put_lock);
3062         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3063         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3064         spin_unlock_irq(&phba->scsi_buf_list_put_lock);
3065         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3066
3067         return 0;
3068
3069 out_free_mem:
3070         lpfc_free_els_sgl_list(phba);
3071         lpfc_scsi_free(phba);
3072         return rc;
3073 }
3074
3075 /**
3076  * lpfc_create_port - Create an FC port
3077  * @phba: pointer to lpfc hba data structure.
3078  * @instance: a unique integer ID to this FC port.
3079  * @dev: pointer to the device data structure.
3080  *
3081  * This routine creates a FC port for the upper layer protocol. The FC port
3082  * can be created on top of either a physical port or a virtual port provided
3083  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3084  * and associates the FC port created before adding the shost into the SCSI
3085  * layer.
3086  *
3087  * Return codes
3088  *   @vport - pointer to the virtual N_Port data structure.
3089  *   NULL - port create failed.
3090  **/
3091 struct lpfc_vport *
3092 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3093 {
3094         struct lpfc_vport *vport;
3095         struct Scsi_Host  *shost;
3096         int error = 0;
3097
3098         if (dev != &phba->pcidev->dev)
3099                 shost = scsi_host_alloc(&lpfc_vport_template,
3100                                         sizeof(struct lpfc_vport));
3101         else
3102                 shost = scsi_host_alloc(&lpfc_template,
3103                                         sizeof(struct lpfc_vport));
3104         if (!shost)
3105                 goto out;
3106
3107         vport = (struct lpfc_vport *) shost->hostdata;
3108         vport->phba = phba;
3109         vport->load_flag |= FC_LOADING;
3110         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3111         vport->fc_rscn_flush = 0;
3112
3113         lpfc_get_vport_cfgparam(vport);
3114         shost->unique_id = instance;
3115         shost->max_id = LPFC_MAX_TARGET;
3116         shost->max_lun = vport->cfg_max_luns;
3117         shost->this_id = -1;
3118         shost->max_cmd_len = 16;
3119         if (phba->sli_rev == LPFC_SLI_REV4) {
3120                 shost->dma_boundary =
3121                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3122                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3123         }
3124
3125         /*
3126          * Set initial can_queue value since 0 is no longer supported and
3127          * scsi_add_host will fail. This will be adjusted later based on the
3128          * max xri value determined in hba setup.
3129          */
3130         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3131         if (dev != &phba->pcidev->dev) {
3132                 shost->transportt = lpfc_vport_transport_template;
3133                 vport->port_type = LPFC_NPIV_PORT;
3134         } else {
3135                 shost->transportt = lpfc_transport_template;
3136                 vport->port_type = LPFC_PHYSICAL_PORT;
3137         }
3138
3139         /* Initialize all internally managed lists. */
3140         INIT_LIST_HEAD(&vport->fc_nodes);
3141         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3142         spin_lock_init(&vport->work_port_lock);
3143
3144         init_timer(&vport->fc_disctmo);
3145         vport->fc_disctmo.function = lpfc_disc_timeout;
3146         vport->fc_disctmo.data = (unsigned long)vport;
3147
3148         init_timer(&vport->fc_fdmitmo);
3149         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3150         vport->fc_fdmitmo.data = (unsigned long)vport;
3151
3152         init_timer(&vport->els_tmofunc);
3153         vport->els_tmofunc.function = lpfc_els_timeout;
3154         vport->els_tmofunc.data = (unsigned long)vport;
3155
3156         init_timer(&vport->delayed_disc_tmo);
3157         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3158         vport->delayed_disc_tmo.data = (unsigned long)vport;
3159
3160         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3161         if (error)
3162                 goto out_put_shost;
3163
3164         spin_lock_irq(&phba->hbalock);
3165         list_add_tail(&vport->listentry, &phba->port_list);
3166         spin_unlock_irq(&phba->hbalock);
3167         return vport;
3168
3169 out_put_shost:
3170         scsi_host_put(shost);
3171 out:
3172         return NULL;
3173 }
3174
3175 /**
3176  * destroy_port -  destroy an FC port
3177  * @vport: pointer to an lpfc virtual N_Port data structure.
3178  *
3179  * This routine destroys a FC port from the upper layer protocol. All the
3180  * resources associated with the port are released.
3181  **/
3182 void
3183 destroy_port(struct lpfc_vport *vport)
3184 {
3185         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3186         struct lpfc_hba  *phba = vport->phba;
3187
3188         lpfc_debugfs_terminate(vport);
3189         fc_remove_host(shost);
3190         scsi_remove_host(shost);
3191
3192         spin_lock_irq(&phba->hbalock);
3193         list_del_init(&vport->listentry);
3194         spin_unlock_irq(&phba->hbalock);
3195
3196         lpfc_cleanup(vport);
3197         return;
3198 }
3199
3200 /**
3201  * lpfc_get_instance - Get a unique integer ID
3202  *
3203  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3204  * uses the kernel idr facility to perform the task.
3205  *
3206  * Return codes:
3207  *   instance - a unique integer ID allocated as the new instance.
3208  *   -1 - lpfc get instance failed.
3209  **/
3210 int
3211 lpfc_get_instance(void)
3212 {
3213         int ret;
3214
3215         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3216         return ret < 0 ? -1 : ret;
3217 }
3218
3219 /**
3220  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3221  * @shost: pointer to SCSI host data structure.
3222  * @time: elapsed time of the scan in jiffies.
3223  *
3224  * This routine is called by the SCSI layer with a SCSI host to determine
3225  * whether the scan host is finished.
3226  *
3227  * Note: there is no scan_start function as adapter initialization will have
3228  * asynchronously kicked off the link initialization.
3229  *
3230  * Return codes
3231  *   0 - SCSI host scan is not over yet.
3232  *   1 - SCSI host scan is over.
3233  **/
3234 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3235 {
3236         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3237         struct lpfc_hba   *phba = vport->phba;
3238         int stat = 0;
3239
3240         spin_lock_irq(shost->host_lock);
3241
3242         if (vport->load_flag & FC_UNLOADING) {
3243                 stat = 1;
3244                 goto finished;
3245         }
3246         if (time >= msecs_to_jiffies(30 * 1000)) {
3247                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3248                                 "0461 Scanning longer than 30 "
3249                                 "seconds.  Continuing initialization\n");
3250                 stat = 1;
3251                 goto finished;
3252         }
3253         if (time >= msecs_to_jiffies(15 * 1000) &&
3254             phba->link_state <= LPFC_LINK_DOWN) {
3255                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3256                                 "0465 Link down longer than 15 "
3257                                 "seconds.  Continuing initialization\n");
3258                 stat = 1;
3259                 goto finished;
3260         }
3261
3262         if (vport->port_state != LPFC_VPORT_READY)
3263                 goto finished;
3264         if (vport->num_disc_nodes || vport->fc_prli_sent)
3265                 goto finished;
3266         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3267                 goto finished;
3268         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3269                 goto finished;
3270
3271         stat = 1;
3272
3273 finished:
3274         spin_unlock_irq(shost->host_lock);
3275         return stat;
3276 }
3277
3278 /**
3279  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3280  * @shost: pointer to SCSI host data structure.
3281  *
3282  * This routine initializes a given SCSI host attributes on a FC port. The
3283  * SCSI host can be either on top of a physical port or a virtual port.
3284  **/
3285 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3286 {
3287         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3288         struct lpfc_hba   *phba = vport->phba;
3289         /*
3290          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3291          */
3292
3293         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3294         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3295         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3296
3297         memset(fc_host_supported_fc4s(shost), 0,
3298                sizeof(fc_host_supported_fc4s(shost)));
3299         fc_host_supported_fc4s(shost)[2] = 1;
3300         fc_host_supported_fc4s(shost)[7] = 1;
3301
3302         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3303                                  sizeof fc_host_symbolic_name(shost));
3304
3305         fc_host_supported_speeds(shost) = 0;
3306         if (phba->lmt & LMT_16Gb)
3307                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3308         if (phba->lmt & LMT_10Gb)
3309                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3310         if (phba->lmt & LMT_8Gb)
3311                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3312         if (phba->lmt & LMT_4Gb)
3313                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3314         if (phba->lmt & LMT_2Gb)
3315                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3316         if (phba->lmt & LMT_1Gb)
3317                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3318
3319         fc_host_maxframe_size(shost) =
3320                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3321                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3322
3323         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3324
3325         /* This value is also unchanging */
3326         memset(fc_host_active_fc4s(shost), 0,
3327                sizeof(fc_host_active_fc4s(shost)));
3328         fc_host_active_fc4s(shost)[2] = 1;
3329         fc_host_active_fc4s(shost)[7] = 1;
3330
3331         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3332         spin_lock_irq(shost->host_lock);
3333         vport->load_flag &= ~FC_LOADING;
3334         spin_unlock_irq(shost->host_lock);
3335 }
3336
3337 /**
3338  * lpfc_stop_port_s3 - Stop SLI3 device port
3339  * @phba: pointer to lpfc hba data structure.
3340  *
3341  * This routine is invoked to stop an SLI3 device port, it stops the device
3342  * from generating interrupts and stops the device driver's timers for the
3343  * device.
3344  **/
3345 static void
3346 lpfc_stop_port_s3(struct lpfc_hba *phba)
3347 {
3348         /* Clear all interrupt enable conditions */
3349         writel(0, phba->HCregaddr);
3350         readl(phba->HCregaddr); /* flush */
3351         /* Clear all pending interrupts */
3352         writel(0xffffffff, phba->HAregaddr);
3353         readl(phba->HAregaddr); /* flush */
3354
3355         /* Reset some HBA SLI setup states */
3356         lpfc_stop_hba_timers(phba);
3357         phba->pport->work_port_events = 0;
3358 }
3359
3360 /**
3361  * lpfc_stop_port_s4 - Stop SLI4 device port
3362  * @phba: pointer to lpfc hba data structure.
3363  *
3364  * This routine is invoked to stop an SLI4 device port, it stops the device
3365  * from generating interrupts and stops the device driver's timers for the
3366  * device.
3367  **/
3368 static void
3369 lpfc_stop_port_s4(struct lpfc_hba *phba)
3370 {
3371         /* Reset some HBA SLI4 setup states */
3372         lpfc_stop_hba_timers(phba);
3373         phba->pport->work_port_events = 0;
3374         phba->sli4_hba.intr_enable = 0;
3375 }
3376
3377 /**
3378  * lpfc_stop_port - Wrapper function for stopping hba port
3379  * @phba: Pointer to HBA context object.
3380  *
3381  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3382  * the API jump table function pointer from the lpfc_hba struct.
3383  **/
3384 void
3385 lpfc_stop_port(struct lpfc_hba *phba)
3386 {
3387         phba->lpfc_stop_port(phba);
3388 }
3389
3390 /**
3391  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3392  * @phba: Pointer to hba for which this call is being executed.
3393  *
3394  * This routine starts the timer waiting for the FCF rediscovery to complete.
3395  **/
3396 void
3397 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3398 {
3399         unsigned long fcf_redisc_wait_tmo =
3400                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3401         /* Start fcf rediscovery wait period timer */
3402         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3403         spin_lock_irq(&phba->hbalock);
3404         /* Allow action to new fcf asynchronous event */
3405         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3406         /* Mark the FCF rediscovery pending state */
3407         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3408         spin_unlock_irq(&phba->hbalock);
3409 }
3410
3411 /**
3412  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3413  * @ptr: Map to lpfc_hba data structure pointer.
3414  *
3415  * This routine is invoked when waiting for FCF table rediscover has been
3416  * timed out. If new FCF record(s) has (have) been discovered during the
3417  * wait period, a new FCF event shall be added to the FCOE async event
3418  * list, and then worker thread shall be waked up for processing from the
3419  * worker thread context.
3420  **/
3421 void
3422 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3423 {
3424         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3425
3426         /* Don't send FCF rediscovery event if timer cancelled */
3427         spin_lock_irq(&phba->hbalock);
3428         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3429                 spin_unlock_irq(&phba->hbalock);
3430                 return;
3431         }
3432         /* Clear FCF rediscovery timer pending flag */
3433         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3434         /* FCF rediscovery event to worker thread */
3435         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3436         spin_unlock_irq(&phba->hbalock);
3437         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3438                         "2776 FCF rediscover quiescent timer expired\n");
3439         /* wake up worker thread */
3440         lpfc_worker_wake_up(phba);
3441 }
3442
3443 /**
3444  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3445  * @phba: pointer to lpfc hba data structure.
3446  * @acqe_link: pointer to the async link completion queue entry.
3447  *
3448  * This routine is to parse the SLI4 link-attention link fault code and
3449  * translate it into the base driver's read link attention mailbox command
3450  * status.
3451  *
3452  * Return: Link-attention status in terms of base driver's coding.
3453  **/
3454 static uint16_t
3455 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3456                            struct lpfc_acqe_link *acqe_link)
3457 {
3458         uint16_t latt_fault;
3459
3460         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3461         case LPFC_ASYNC_LINK_FAULT_NONE:
3462         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3463         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3464                 latt_fault = 0;
3465                 break;
3466         default:
3467                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3468                                 "0398 Invalid link fault code: x%x\n",
3469                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3470                 latt_fault = MBXERR_ERROR;
3471                 break;
3472         }
3473         return latt_fault;
3474 }
3475
3476 /**
3477  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3478  * @phba: pointer to lpfc hba data structure.
3479  * @acqe_link: pointer to the async link completion queue entry.
3480  *
3481  * This routine is to parse the SLI4 link attention type and translate it
3482  * into the base driver's link attention type coding.
3483  *
3484  * Return: Link attention type in terms of base driver's coding.
3485  **/
3486 static uint8_t
3487 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3488                           struct lpfc_acqe_link *acqe_link)
3489 {
3490         uint8_t att_type;
3491
3492         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3493         case LPFC_ASYNC_LINK_STATUS_DOWN:
3494         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3495                 att_type = LPFC_ATT_LINK_DOWN;
3496                 break;
3497         case LPFC_ASYNC_LINK_STATUS_UP:
3498                 /* Ignore physical link up events - wait for logical link up */
3499                 att_type = LPFC_ATT_RESERVED;
3500                 break;
3501         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3502                 att_type = LPFC_ATT_LINK_UP;
3503                 break;
3504         default:
3505                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3506                                 "0399 Invalid link attention type: x%x\n",
3507                                 bf_get(lpfc_acqe_link_status, acqe_link));
3508                 att_type = LPFC_ATT_RESERVED;
3509                 break;
3510         }
3511         return att_type;
3512 }
3513
3514 /**
3515  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3516  * @phba: pointer to lpfc hba data structure.
3517  * @acqe_link: pointer to the async link completion queue entry.
3518  *
3519  * This routine is to parse the SLI4 link-attention link speed and translate
3520  * it into the base driver's link-attention link speed coding.
3521  *
3522  * Return: Link-attention link speed in terms of base driver's coding.
3523  **/
3524 static uint8_t
3525 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3526                                 struct lpfc_acqe_link *acqe_link)
3527 {
3528         uint8_t link_speed;
3529
3530         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3531         case LPFC_ASYNC_LINK_SPEED_ZERO:
3532         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3533         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3534                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3535                 break;
3536         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3537                 link_speed = LPFC_LINK_SPEED_1GHZ;
3538                 break;
3539         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3540                 link_speed = LPFC_LINK_SPEED_10GHZ;
3541                 break;
3542         default:
3543                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3544                                 "0483 Invalid link-attention link speed: x%x\n",
3545                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3546                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3547                 break;
3548         }
3549         return link_speed;
3550 }
3551
3552 /**
3553  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3554  * @phba: pointer to lpfc hba data structure.
3555  *
3556  * This routine is to get an SLI3 FC port's link speed in Mbps.
3557  *
3558  * Return: link speed in terms of Mbps.
3559  **/
3560 uint32_t
3561 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3562 {
3563         uint32_t link_speed;
3564
3565         if (!lpfc_is_link_up(phba))
3566                 return 0;
3567
3568         switch (phba->fc_linkspeed) {
3569         case LPFC_LINK_SPEED_1GHZ:
3570                 link_speed = 1000;
3571                 break;
3572         case LPFC_LINK_SPEED_2GHZ:
3573                 link_speed = 2000;
3574                 break;
3575         case LPFC_LINK_SPEED_4GHZ:
3576                 link_speed = 4000;
3577                 break;
3578         case LPFC_LINK_SPEED_8GHZ:
3579                 link_speed = 8000;
3580                 break;
3581         case LPFC_LINK_SPEED_10GHZ:
3582                 link_speed = 10000;
3583                 break;
3584         case LPFC_LINK_SPEED_16GHZ:
3585                 link_speed = 16000;
3586                 break;
3587         default:
3588                 link_speed = 0;
3589         }
3590         return link_speed;
3591 }
3592
3593 /**
3594  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3595  * @phba: pointer to lpfc hba data structure.
3596  * @evt_code: asynchronous event code.
3597  * @speed_code: asynchronous event link speed code.
3598  *
3599  * This routine is to parse the giving SLI4 async event link speed code into
3600  * value of Mbps for the link speed.
3601  *
3602  * Return: link speed in terms of Mbps.
3603  **/
3604 static uint32_t
3605 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3606                            uint8_t speed_code)
3607 {
3608         uint32_t port_speed;
3609
3610         switch (evt_code) {
3611         case LPFC_TRAILER_CODE_LINK:
3612                 switch (speed_code) {
3613                 case LPFC_EVT_CODE_LINK_NO_LINK:
3614                         port_speed = 0;
3615                         break;
3616                 case LPFC_EVT_CODE_LINK_10_MBIT:
3617                         port_speed = 10;
3618                         break;
3619                 case LPFC_EVT_CODE_LINK_100_MBIT:
3620                         port_speed = 100;
3621                         break;
3622                 case LPFC_EVT_CODE_LINK_1_GBIT:
3623                         port_speed = 1000;
3624                         break;
3625                 case LPFC_EVT_CODE_LINK_10_GBIT:
3626                         port_speed = 10000;
3627                         break;
3628                 default:
3629                         port_speed = 0;
3630                 }
3631                 break;
3632         case LPFC_TRAILER_CODE_FC:
3633                 switch (speed_code) {
3634                 case LPFC_EVT_CODE_FC_NO_LINK:
3635                         port_speed = 0;
3636                         break;
3637                 case LPFC_EVT_CODE_FC_1_GBAUD:
3638                         port_speed = 1000;
3639                         break;
3640                 case LPFC_EVT_CODE_FC_2_GBAUD:
3641                         port_speed = 2000;
3642                         break;
3643                 case LPFC_EVT_CODE_FC_4_GBAUD:
3644                         port_speed = 4000;
3645                         break;
3646                 case LPFC_EVT_CODE_FC_8_GBAUD:
3647                         port_speed = 8000;
3648                         break;
3649                 case LPFC_EVT_CODE_FC_10_GBAUD:
3650                         port_speed = 10000;
3651                         break;
3652                 case LPFC_EVT_CODE_FC_16_GBAUD:
3653                         port_speed = 16000;
3654                         break;
3655                 default:
3656                         port_speed = 0;
3657                 }
3658                 break;
3659         default:
3660                 port_speed = 0;
3661         }
3662         return port_speed;
3663 }
3664
3665 /**
3666  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3667  * @phba: pointer to lpfc hba data structure.
3668  * @acqe_link: pointer to the async link completion queue entry.
3669  *
3670  * This routine is to handle the SLI4 asynchronous FCoE link event.
3671  **/
3672 static void
3673 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3674                          struct lpfc_acqe_link *acqe_link)
3675 {
3676         struct lpfc_dmabuf *mp;
3677         LPFC_MBOXQ_t *pmb;
3678         MAILBOX_t *mb;
3679         struct lpfc_mbx_read_top *la;
3680         uint8_t att_type;
3681         int rc;
3682
3683         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3684         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3685                 return;
3686         phba->fcoe_eventtag = acqe_link->event_tag;
3687         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3688         if (!pmb) {
3689                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3690                                 "0395 The mboxq allocation failed\n");
3691                 return;
3692         }
3693         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3694         if (!mp) {
3695                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3696                                 "0396 The lpfc_dmabuf allocation failed\n");
3697                 goto out_free_pmb;
3698         }
3699         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3700         if (!mp->virt) {
3701                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3702                                 "0397 The mbuf allocation failed\n");
3703                 goto out_free_dmabuf;
3704         }
3705
3706         /* Cleanup any outstanding ELS commands */
3707         lpfc_els_flush_all_cmd(phba);
3708
3709         /* Block ELS IOCBs until we have done process link event */
3710         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3711
3712         /* Update link event statistics */
3713         phba->sli.slistat.link_event++;
3714
3715         /* Create lpfc_handle_latt mailbox command from link ACQE */
3716         lpfc_read_topology(phba, pmb, mp);
3717         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3718         pmb->vport = phba->pport;
3719
3720         /* Keep the link status for extra SLI4 state machine reference */
3721         phba->sli4_hba.link_state.speed =
3722                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3723                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3724         phba->sli4_hba.link_state.duplex =
3725                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3726         phba->sli4_hba.link_state.status =
3727                                 bf_get(lpfc_acqe_link_status, acqe_link);
3728         phba->sli4_hba.link_state.type =
3729                                 bf_get(lpfc_acqe_link_type, acqe_link);
3730         phba->sli4_hba.link_state.number =
3731                                 bf_get(lpfc_acqe_link_number, acqe_link);
3732         phba->sli4_hba.link_state.fault =
3733                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3734         phba->sli4_hba.link_state.logical_speed =
3735                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3736
3737         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3738                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3739                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3740                         "Logical speed:%dMbps Fault:%d\n",
3741                         phba->sli4_hba.link_state.speed,
3742                         phba->sli4_hba.link_state.topology,
3743                         phba->sli4_hba.link_state.status,
3744                         phba->sli4_hba.link_state.type,
3745                         phba->sli4_hba.link_state.number,
3746                         phba->sli4_hba.link_state.logical_speed,
3747                         phba->sli4_hba.link_state.fault);
3748         /*
3749          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3750          * topology info. Note: Optional for non FC-AL ports.
3751          */
3752         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3753                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3754                 if (rc == MBX_NOT_FINISHED)
3755                         goto out_free_dmabuf;
3756                 return;
3757         }
3758         /*
3759          * For FCoE Mode: fill in all the topology information we need and call
3760          * the READ_TOPOLOGY completion routine to continue without actually
3761          * sending the READ_TOPOLOGY mailbox command to the port.
3762          */
3763         /* Parse and translate status field */
3764         mb = &pmb->u.mb;
3765         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3766
3767         /* Parse and translate link attention fields */
3768         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3769         la->eventTag = acqe_link->event_tag;
3770         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3771         bf_set(lpfc_mbx_read_top_link_spd, la,
3772                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3773
3774         /* Fake the the following irrelvant fields */
3775         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3776         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3777         bf_set(lpfc_mbx_read_top_il, la, 0);
3778         bf_set(lpfc_mbx_read_top_pb, la, 0);
3779         bf_set(lpfc_mbx_read_top_fa, la, 0);
3780         bf_set(lpfc_mbx_read_top_mm, la, 0);
3781
3782         /* Invoke the lpfc_handle_latt mailbox command callback function */
3783         lpfc_mbx_cmpl_read_topology(phba, pmb);
3784
3785         return;
3786
3787 out_free_dmabuf:
3788         kfree(mp);
3789 out_free_pmb:
3790         mempool_free(pmb, phba->mbox_mem_pool);
3791 }
3792
3793 /**
3794  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3795  * @phba: pointer to lpfc hba data structure.
3796  * @acqe_fc: pointer to the async fc completion queue entry.
3797  *
3798  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3799  * that the event was received and then issue a read_topology mailbox command so
3800  * that the rest of the driver will treat it the same as SLI3.
3801  **/
3802 static void
3803 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3804 {
3805         struct lpfc_dmabuf *mp;
3806         LPFC_MBOXQ_t *pmb;
3807         int rc;
3808
3809         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3810             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3811                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3812                                 "2895 Non FC link Event detected.(%d)\n",
3813                                 bf_get(lpfc_trailer_type, acqe_fc));
3814                 return;
3815         }
3816         /* Keep the link status for extra SLI4 state machine reference */
3817         phba->sli4_hba.link_state.speed =
3818                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
3819                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
3820         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3821         phba->sli4_hba.link_state.topology =
3822                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3823         phba->sli4_hba.link_state.status =
3824                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3825         phba->sli4_hba.link_state.type =
3826                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3827         phba->sli4_hba.link_state.number =
3828                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3829         phba->sli4_hba.link_state.fault =
3830                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3831         phba->sli4_hba.link_state.logical_speed =
3832                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
3833         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3834                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3835                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3836                         "%dMbps Fault:%d\n",
3837                         phba->sli4_hba.link_state.speed,
3838                         phba->sli4_hba.link_state.topology,
3839                         phba->sli4_hba.link_state.status,
3840                         phba->sli4_hba.link_state.type,
3841                         phba->sli4_hba.link_state.number,
3842                         phba->sli4_hba.link_state.logical_speed,
3843                         phba->sli4_hba.link_state.fault);
3844         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3845         if (!pmb) {
3846                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3847                                 "2897 The mboxq allocation failed\n");
3848                 return;
3849         }
3850         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3851         if (!mp) {
3852                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3853                                 "2898 The lpfc_dmabuf allocation failed\n");
3854                 goto out_free_pmb;
3855         }
3856         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3857         if (!mp->virt) {
3858                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3859                                 "2899 The mbuf allocation failed\n");
3860                 goto out_free_dmabuf;
3861         }
3862
3863         /* Cleanup any outstanding ELS commands */
3864         lpfc_els_flush_all_cmd(phba);
3865
3866         /* Block ELS IOCBs until we have done process link event */
3867         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3868
3869         /* Update link event statistics */
3870         phba->sli.slistat.link_event++;
3871
3872         /* Create lpfc_handle_latt mailbox command from link ACQE */
3873         lpfc_read_topology(phba, pmb, mp);
3874         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3875         pmb->vport = phba->pport;
3876
3877         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3878         if (rc == MBX_NOT_FINISHED)
3879                 goto out_free_dmabuf;
3880         return;
3881
3882 out_free_dmabuf:
3883         kfree(mp);
3884 out_free_pmb:
3885         mempool_free(pmb, phba->mbox_mem_pool);
3886 }
3887
3888 /**
3889  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3890  * @phba: pointer to lpfc hba data structure.
3891  * @acqe_fc: pointer to the async SLI completion queue entry.
3892  *
3893  * This routine is to handle the SLI4 asynchronous SLI events.
3894  **/
3895 static void
3896 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3897 {
3898         char port_name;
3899         char message[128];
3900         uint8_t status;
3901         struct lpfc_acqe_misconfigured_event *misconfigured;
3902
3903         /* special case misconfigured event as it contains data for all ports */
3904         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3905                  LPFC_SLI_INTF_IF_TYPE_2) ||
3906                 (bf_get(lpfc_trailer_type, acqe_sli) !=
3907                         LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
3908                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3909                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3910                                 "x%08x SLI Event Type:%d\n",
3911                                 acqe_sli->event_data1, acqe_sli->event_data2,
3912                                 bf_get(lpfc_trailer_type, acqe_sli));
3913                 return;
3914         }
3915
3916         port_name = phba->Port[0];
3917         if (port_name == 0x00)
3918                 port_name = '?'; /* get port name is empty */
3919
3920         misconfigured = (struct lpfc_acqe_misconfigured_event *)
3921                                         &acqe_sli->event_data1;
3922
3923         /* fetch the status for this port */
3924         switch (phba->sli4_hba.lnk_info.lnk_no) {
3925         case LPFC_LINK_NUMBER_0:
3926                 status = bf_get(lpfc_sli_misconfigured_port0,
3927                                         &misconfigured->theEvent);
3928                 break;
3929         case LPFC_LINK_NUMBER_1:
3930                 status = bf_get(lpfc_sli_misconfigured_port1,
3931                                         &misconfigured->theEvent);
3932                 break;
3933         case LPFC_LINK_NUMBER_2:
3934                 status = bf_get(lpfc_sli_misconfigured_port2,
3935                                         &misconfigured->theEvent);
3936                 break;
3937         case LPFC_LINK_NUMBER_3:
3938                 status = bf_get(lpfc_sli_misconfigured_port3,
3939                                         &misconfigured->theEvent);
3940                 break;
3941         default:
3942                 status = ~LPFC_SLI_EVENT_STATUS_VALID;
3943                 break;
3944         }
3945
3946         switch (status) {
3947         case LPFC_SLI_EVENT_STATUS_VALID:
3948                 return; /* no message if the sfp is okay */
3949         case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
3950                 sprintf(message, "Optics faulted/incorrectly installed/not " \
3951                                 "installed - Reseat optics, if issue not "
3952                                 "resolved, replace.");
3953                 break;
3954         case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
3955                 sprintf(message,
3956                         "Optics of two types installed - Remove one optic or " \
3957                         "install matching pair of optics.");
3958                 break;
3959         case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
3960                 sprintf(message, "Incompatible optics - Replace with " \
3961                                 "compatible optics for card to function.");
3962                 break;
3963         default:
3964                 /* firmware is reporting a status we don't know about */
3965                 sprintf(message, "Unknown event status x%02x", status);
3966                 break;
3967         }
3968
3969         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3970                         "3176 Misconfigured Physical Port - "
3971                         "Port Name %c %s\n", port_name, message);
3972 }
3973
3974 /**
3975  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3976  * @vport: pointer to vport data structure.
3977  *
3978  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3979  * response to a CVL event.
3980  *
3981  * Return the pointer to the ndlp with the vport if successful, otherwise
3982  * return NULL.
3983  **/
3984 static struct lpfc_nodelist *
3985 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3986 {
3987         struct lpfc_nodelist *ndlp;
3988         struct Scsi_Host *shost;
3989         struct lpfc_hba *phba;
3990
3991         if (!vport)
3992                 return NULL;
3993         phba = vport->phba;
3994         if (!phba)
3995                 return NULL;
3996         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3997         if (!ndlp) {
3998                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3999                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4000                 if (!ndlp)
4001                         return 0;
4002                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4003                 /* Set the node type */
4004                 ndlp->nlp_type |= NLP_FABRIC;
4005                 /* Put ndlp onto node list */
4006                 lpfc_enqueue_node(vport, ndlp);
4007         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4008                 /* re-setup ndlp without removing from node list */
4009                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4010                 if (!ndlp)
4011                         return 0;
4012         }
4013         if ((phba->pport->port_state < LPFC_FLOGI) &&
4014                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4015                 return NULL;
4016         /* If virtual link is not yet instantiated ignore CVL */
4017         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4018                 && (vport->port_state != LPFC_VPORT_FAILED))
4019                 return NULL;
4020         shost = lpfc_shost_from_vport(vport);
4021         if (!shost)
4022                 return NULL;
4023         lpfc_linkdown_port(vport);
4024         lpfc_cleanup_pending_mbox(vport);
4025         spin_lock_irq(shost->host_lock);
4026         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4027         spin_unlock_irq(shost->host_lock);
4028
4029         return ndlp;
4030 }
4031
4032 /**
4033  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4034  * @vport: pointer to lpfc hba data structure.
4035  *
4036  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4037  * response to a FCF dead event.
4038  **/
4039 static void
4040 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4041 {
4042         struct lpfc_vport **vports;
4043         int i;
4044
4045         vports = lpfc_create_vport_work_array(phba);
4046         if (vports)
4047                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4048                         lpfc_sli4_perform_vport_cvl(vports[i]);
4049         lpfc_destroy_vport_work_array(phba, vports);
4050 }
4051
4052 /**
4053  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4054  * @phba: pointer to lpfc hba data structure.
4055  * @acqe_link: pointer to the async fcoe completion queue entry.
4056  *
4057  * This routine is to handle the SLI4 asynchronous fcoe event.
4058  **/
4059 static void
4060 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4061                         struct lpfc_acqe_fip *acqe_fip)
4062 {
4063         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4064         int rc;
4065         struct lpfc_vport *vport;
4066         struct lpfc_nodelist *ndlp;
4067         struct Scsi_Host  *shost;
4068         int active_vlink_present;
4069         struct lpfc_vport **vports;
4070         int i;
4071
4072         phba->fc_eventTag = acqe_fip->event_tag;
4073         phba->fcoe_eventtag = acqe_fip->event_tag;
4074         switch (event_type) {
4075         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4076         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4077                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4078                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4079                                         LOG_DISCOVERY,
4080                                         "2546 New FCF event, evt_tag:x%x, "
4081                                         "index:x%x\n",
4082                                         acqe_fip->event_tag,
4083                                         acqe_fip->index);
4084                 else
4085                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4086                                         LOG_DISCOVERY,
4087                                         "2788 FCF param modified event, "
4088                                         "evt_tag:x%x, index:x%x\n",
4089                                         acqe_fip->event_tag,
4090                                         acqe_fip->index);
4091                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4092                         /*
4093                          * During period of FCF discovery, read the FCF
4094                          * table record indexed by the event to update
4095                          * FCF roundrobin failover eligible FCF bmask.
4096                          */
4097                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4098                                         LOG_DISCOVERY,
4099                                         "2779 Read FCF (x%x) for updating "
4100                                         "roundrobin FCF failover bmask\n",
4101                                         acqe_fip->index);
4102                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4103                 }
4104
4105                 /* If the FCF discovery is in progress, do nothing. */
4106                 spin_lock_irq(&phba->hbalock);
4107                 if (phba->hba_flag & FCF_TS_INPROG) {
4108                         spin_unlock_irq(&phba->hbalock);
4109                         break;
4110                 }
4111                 /* If fast FCF failover rescan event is pending, do nothing */
4112                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4113                         spin_unlock_irq(&phba->hbalock);
4114                         break;
4115                 }
4116
4117                 /* If the FCF has been in discovered state, do nothing. */
4118                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4119                         spin_unlock_irq(&phba->hbalock);
4120                         break;
4121                 }
4122                 spin_unlock_irq(&phba->hbalock);
4123
4124                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4125                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4126                                 "2770 Start FCF table scan per async FCF "
4127                                 "event, evt_tag:x%x, index:x%x\n",
4128                                 acqe_fip->event_tag, acqe_fip->index);
4129                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4130                                                      LPFC_FCOE_FCF_GET_FIRST);
4131                 if (rc)
4132                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4133                                         "2547 Issue FCF scan read FCF mailbox "
4134                                         "command failed (x%x)\n", rc);
4135                 break;
4136
4137         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4138                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4139                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4140                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4141                         acqe_fip->event_tag);
4142                 break;
4143
4144         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4145                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4146                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4147                         "2549 FCF (x%x) disconnected from network, "
4148                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4149                 /*
4150                  * If we are in the middle of FCF failover process, clear
4151                  * the corresponding FCF bit in the roundrobin bitmap.
4152                  */
4153                 spin_lock_irq(&phba->hbalock);
4154                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4155                         spin_unlock_irq(&phba->hbalock);
4156                         /* Update FLOGI FCF failover eligible FCF bmask */
4157                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4158                         break;
4159                 }
4160                 spin_unlock_irq(&phba->hbalock);
4161
4162                 /* If the event is not for currently used fcf do nothing */
4163                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4164                         break;
4165
4166                 /*
4167                  * Otherwise, request the port to rediscover the entire FCF
4168                  * table for a fast recovery from case that the current FCF
4169                  * is no longer valid as we are not in the middle of FCF
4170                  * failover process already.
4171                  */
4172                 spin_lock_irq(&phba->hbalock);
4173                 /* Mark the fast failover process in progress */
4174                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4175                 spin_unlock_irq(&phba->hbalock);
4176
4177                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4178                                 "2771 Start FCF fast failover process due to "
4179                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4180                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4181                 rc = lpfc_sli4_redisc_fcf_table(phba);
4182                 if (rc) {
4183                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4184                                         LOG_DISCOVERY,
4185                                         "2772 Issue FCF rediscover mabilbox "
4186                                         "command failed, fail through to FCF "
4187                                         "dead event\n");
4188                         spin_lock_irq(&phba->hbalock);
4189                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4190                         spin_unlock_irq(&phba->hbalock);
4191                         /*
4192                          * Last resort will fail over by treating this
4193                          * as a link down to FCF registration.
4194                          */
4195                         lpfc_sli4_fcf_dead_failthrough(phba);
4196                 } else {
4197                         /* Reset FCF roundrobin bmask for new discovery */
4198                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4199                         /*
4200                          * Handling fast FCF failover to a DEAD FCF event is
4201                          * considered equalivant to receiving CVL to all vports.
4202                          */
4203                         lpfc_sli4_perform_all_vport_cvl(phba);
4204                 }
4205                 break;
4206         case LPFC_FIP_EVENT_TYPE_CVL:
4207                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4208                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4209                         "2718 Clear Virtual Link Received for VPI 0x%x"
4210                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4211
4212                 vport = lpfc_find_vport_by_vpid(phba,
4213                                                 acqe_fip->index);
4214                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4215                 if (!ndlp)
4216                         break;
4217                 active_vlink_present = 0;
4218
4219                 vports = lpfc_create_vport_work_array(phba);
4220                 if (vports) {
4221                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4222                                         i++) {
4223                                 if ((!(vports[i]->fc_flag &
4224                                         FC_VPORT_CVL_RCVD)) &&
4225                                         (vports[i]->port_state > LPFC_FDISC)) {
4226                                         active_vlink_present = 1;
4227                                         break;
4228                                 }
4229                         }
4230                         lpfc_destroy_vport_work_array(phba, vports);
4231                 }
4232
4233                 if (active_vlink_present) {
4234                         /*
4235                          * If there are other active VLinks present,
4236                          * re-instantiate the Vlink using FDISC.
4237                          */
4238                         mod_timer(&ndlp->nlp_delayfunc,
4239                                   jiffies + msecs_to_jiffies(1000));
4240                         shost = lpfc_shost_from_vport(vport);
4241                         spin_lock_irq(shost->host_lock);
4242                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4243                         spin_unlock_irq(shost->host_lock);
4244                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4245                         vport->port_state = LPFC_FDISC;
4246                 } else {
4247                         /*
4248                          * Otherwise, we request port to rediscover
4249                          * the entire FCF table for a fast recovery
4250                          * from possible case that the current FCF
4251                          * is no longer valid if we are not already
4252                          * in the FCF failover process.
4253                          */
4254                         spin_lock_irq(&phba->hbalock);
4255                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4256                                 spin_unlock_irq(&phba->hbalock);
4257                                 break;
4258                         }
4259                         /* Mark the fast failover process in progress */
4260                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4261                         spin_unlock_irq(&phba->hbalock);
4262                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4263                                         LOG_DISCOVERY,
4264                                         "2773 Start FCF failover per CVL, "
4265                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4266                         rc = lpfc_sli4_redisc_fcf_table(phba);
4267                         if (rc) {
4268                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4269                                                 LOG_DISCOVERY,
4270                                                 "2774 Issue FCF rediscover "
4271                                                 "mabilbox command failed, "
4272                                                 "through to CVL event\n");
4273                                 spin_lock_irq(&phba->hbalock);
4274                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4275                                 spin_unlock_irq(&phba->hbalock);
4276                                 /*
4277                                  * Last resort will be re-try on the
4278                                  * the current registered FCF entry.
4279                                  */
4280                                 lpfc_retry_pport_discovery(phba);
4281                         } else
4282                                 /*
4283                                  * Reset FCF roundrobin bmask for new
4284                                  * discovery.
4285                                  */
4286                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4287                 }
4288                 break;
4289         default:
4290                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4291                         "0288 Unknown FCoE event type 0x%x event tag "
4292                         "0x%x\n", event_type, acqe_fip->event_tag);
4293                 break;
4294         }
4295 }
4296
4297 /**
4298  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4299  * @phba: pointer to lpfc hba data structure.
4300  * @acqe_link: pointer to the async dcbx completion queue entry.
4301  *
4302  * This routine is to handle the SLI4 asynchronous dcbx event.
4303  **/
4304 static void
4305 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4306                          struct lpfc_acqe_dcbx *acqe_dcbx)
4307 {
4308         phba->fc_eventTag = acqe_dcbx->event_tag;
4309         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4310                         "0290 The SLI4 DCBX asynchronous event is not "
4311                         "handled yet\n");
4312 }
4313
4314 /**
4315  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4316  * @phba: pointer to lpfc hba data structure.
4317  * @acqe_link: pointer to the async grp5 completion queue entry.
4318  *
4319  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4320  * is an asynchronous notified of a logical link speed change.  The Port
4321  * reports the logical link speed in units of 10Mbps.
4322  **/
4323 static void
4324 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4325                          struct lpfc_acqe_grp5 *acqe_grp5)
4326 {
4327         uint16_t prev_ll_spd;
4328
4329         phba->fc_eventTag = acqe_grp5->event_tag;
4330         phba->fcoe_eventtag = acqe_grp5->event_tag;
4331         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4332         phba->sli4_hba.link_state.logical_speed =
4333                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4334         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4335                         "2789 GRP5 Async Event: Updating logical link speed "
4336                         "from %dMbps to %dMbps\n", prev_ll_spd,
4337                         phba->sli4_hba.link_state.logical_speed);
4338 }
4339
4340 /**
4341  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4342  * @phba: pointer to lpfc hba data structure.
4343  *
4344  * This routine is invoked by the worker thread to process all the pending
4345  * SLI4 asynchronous events.
4346  **/
4347 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4348 {
4349         struct lpfc_cq_event *cq_event;
4350
4351         /* First, declare the async event has been handled */
4352         spin_lock_irq(&phba->hbalock);
4353         phba->hba_flag &= ~ASYNC_EVENT;
4354         spin_unlock_irq(&phba->hbalock);
4355         /* Now, handle all the async events */
4356         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4357                 /* Get the first event from the head of the event queue */
4358                 spin_lock_irq(&phba->hbalock);
4359                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4360                                  cq_event, struct lpfc_cq_event, list);
4361                 spin_unlock_irq(&phba->hbalock);
4362                 /* Process the asynchronous event */
4363                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4364                 case LPFC_TRAILER_CODE_LINK:
4365                         lpfc_sli4_async_link_evt(phba,
4366                                                  &cq_event->cqe.acqe_link);
4367                         break;
4368                 case LPFC_TRAILER_CODE_FCOE:
4369                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4370                         break;
4371                 case LPFC_TRAILER_CODE_DCBX:
4372                         lpfc_sli4_async_dcbx_evt(phba,
4373                                                  &cq_event->cqe.acqe_dcbx);
4374                         break;
4375                 case LPFC_TRAILER_CODE_GRP5:
4376                         lpfc_sli4_async_grp5_evt(phba,
4377                                                  &cq_event->cqe.acqe_grp5);
4378                         break;
4379                 case LPFC_TRAILER_CODE_FC:
4380                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4381                         break;
4382                 case LPFC_TRAILER_CODE_SLI:
4383                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4384                         break;
4385                 default:
4386                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4387                                         "1804 Invalid asynchrous event code: "
4388                                         "x%x\n", bf_get(lpfc_trailer_code,
4389                                         &cq_event->cqe.mcqe_cmpl));
4390                         break;
4391                 }
4392                 /* Free the completion event processed to the free pool */
4393                 lpfc_sli4_cq_event_release(phba, cq_event);
4394         }
4395 }
4396
4397 /**
4398  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4399  * @phba: pointer to lpfc hba data structure.
4400  *
4401  * This routine is invoked by the worker thread to process FCF table
4402  * rediscovery pending completion event.
4403  **/
4404 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4405 {
4406         int rc;
4407
4408         spin_lock_irq(&phba->hbalock);
4409         /* Clear FCF rediscovery timeout event */
4410         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4411         /* Clear driver fast failover FCF record flag */
4412         phba->fcf.failover_rec.flag = 0;
4413         /* Set state for FCF fast failover */
4414         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4415         spin_unlock_irq(&phba->hbalock);
4416
4417         /* Scan FCF table from the first entry to re-discover SAN */
4418         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4419                         "2777 Start post-quiescent FCF table scan\n");
4420         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4421         if (rc)
4422                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4423                                 "2747 Issue FCF scan read FCF mailbox "
4424                                 "command failed 0x%x\n", rc);
4425 }
4426
4427 /**
4428  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4429  * @phba: pointer to lpfc hba data structure.
4430  * @dev_grp: The HBA PCI-Device group number.
4431  *
4432  * This routine is invoked to set up the per HBA PCI-Device group function
4433  * API jump table entries.
4434  *
4435  * Return: 0 if success, otherwise -ENODEV
4436  **/
4437 int
4438 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4439 {
4440         int rc;
4441
4442         /* Set up lpfc PCI-device group */
4443         phba->pci_dev_grp = dev_grp;
4444
4445         /* The LPFC_PCI_DEV_OC uses SLI4 */
4446         if (dev_grp == LPFC_PCI_DEV_OC)
4447                 phba->sli_rev = LPFC_SLI_REV4;
4448
4449         /* Set up device INIT API function jump table */
4450         rc = lpfc_init_api_table_setup(phba, dev_grp);
4451         if (rc)
4452                 return -ENODEV;
4453         /* Set up SCSI API function jump table */
4454         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4455         if (rc)
4456                 return -ENODEV;
4457         /* Set up SLI API function jump table */
4458         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4459         if (rc)
4460                 return -ENODEV;
4461         /* Set up MBOX API function jump table */
4462         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4463         if (rc)
4464                 return -ENODEV;
4465
4466         return 0;
4467 }
4468
4469 /**
4470  * lpfc_log_intr_mode - Log the active interrupt mode
4471  * @phba: pointer to lpfc hba data structure.
4472  * @intr_mode: active interrupt mode adopted.
4473  *
4474  * This routine it invoked to log the currently used active interrupt mode
4475  * to the device.
4476  **/
4477 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4478 {
4479         switch (intr_mode) {
4480         case 0:
4481                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4482                                 "0470 Enable INTx interrupt mode.\n");
4483                 break;
4484         case 1:
4485                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4486                                 "0481 Enabled MSI interrupt mode.\n");
4487                 break;
4488         case 2:
4489                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4490                                 "0480 Enabled MSI-X interrupt mode.\n");
4491                 break;
4492         default:
4493                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4494                                 "0482 Illegal interrupt mode.\n");
4495                 break;
4496         }
4497         return;
4498 }
4499
4500 /**
4501  * lpfc_enable_pci_dev - Enable a generic PCI device.
4502  * @phba: pointer to lpfc hba data structure.
4503  *
4504  * This routine is invoked to enable the PCI device that is common to all
4505  * PCI devices.
4506  *
4507  * Return codes
4508  *      0 - successful
4509  *      other values - error
4510  **/
4511 static int
4512 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4513 {
4514         struct pci_dev *pdev;
4515         int bars = 0;
4516
4517         /* Obtain PCI device reference */
4518         if (!phba->pcidev)
4519                 goto out_error;
4520         else
4521                 pdev = phba->pcidev;
4522         /* Select PCI BARs */
4523         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4524         /* Enable PCI device */
4525         if (pci_enable_device_mem(pdev))
4526                 goto out_error;
4527         /* Request PCI resource for the device */
4528         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4529                 goto out_disable_device;
4530         /* Set up device as PCI master and save state for EEH */
4531         pci_set_master(pdev);
4532         pci_try_set_mwi(pdev);
4533         pci_save_state(pdev);
4534
4535         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4536         if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
4537                 pdev->needs_freset = 1;
4538
4539         return 0;
4540
4541 out_disable_device:
4542         pci_disable_device(pdev);
4543 out_error:
4544         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4545                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4546         return -ENODEV;
4547 }
4548
4549 /**
4550  * lpfc_disable_pci_dev - Disable a generic PCI device.
4551  * @phba: pointer to lpfc hba data structure.
4552  *
4553  * This routine is invoked to disable the PCI device that is common to all
4554  * PCI devices.
4555  **/
4556 static void
4557 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4558 {
4559         struct pci_dev *pdev;
4560         int bars;
4561
4562         /* Obtain PCI device reference */
4563         if (!phba->pcidev)
4564                 return;
4565         else
4566                 pdev = phba->pcidev;
4567         /* Select PCI BARs */
4568         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4569         /* Release PCI resource and disable PCI device */
4570         pci_release_selected_regions(pdev, bars);
4571         pci_disable_device(pdev);
4572         /* Null out PCI private reference to driver */
4573         pci_set_drvdata(pdev, NULL);
4574
4575         return;
4576 }
4577
4578 /**
4579  * lpfc_reset_hba - Reset a hba
4580  * @phba: pointer to lpfc hba data structure.
4581  *
4582  * This routine is invoked to reset a hba device. It brings the HBA
4583  * offline, performs a board restart, and then brings the board back
4584  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4585  * on outstanding mailbox commands.
4586  **/
4587 void
4588 lpfc_reset_hba(struct lpfc_hba *phba)
4589 {
4590         /* If resets are disabled then set error state and return. */
4591         if (!phba->cfg_enable_hba_reset) {
4592                 phba->link_state = LPFC_HBA_ERROR;
4593                 return;
4594         }
4595         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4596         lpfc_offline(phba);
4597         lpfc_sli_brdrestart(phba);
4598         lpfc_online(phba);
4599         lpfc_unblock_mgmt_io(phba);
4600 }
4601
4602 /**
4603  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4604  * @phba: pointer to lpfc hba data structure.
4605  *
4606  * This function enables the PCI SR-IOV virtual functions to a physical
4607  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4608  * enable the number of virtual functions to the physical function. As
4609  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4610  * API call does not considered as an error condition for most of the device.
4611  **/
4612 uint16_t
4613 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4614 {
4615         struct pci_dev *pdev = phba->pcidev;
4616         uint16_t nr_virtfn;
4617         int pos;
4618
4619         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4620         if (pos == 0)
4621                 return 0;
4622
4623         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4624         return nr_virtfn;
4625 }
4626
4627 /**
4628  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4629  * @phba: pointer to lpfc hba data structure.
4630  * @nr_vfn: number of virtual functions to be enabled.
4631  *
4632  * This function enables the PCI SR-IOV virtual functions to a physical
4633  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4634  * enable the number of virtual functions to the physical function. As
4635  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4636  * API call does not considered as an error condition for most of the device.
4637  **/
4638 int
4639 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4640 {
4641         struct pci_dev *pdev = phba->pcidev;
4642         uint16_t max_nr_vfn;
4643         int rc;
4644
4645         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4646         if (nr_vfn > max_nr_vfn) {
4647                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4648                                 "3057 Requested vfs (%d) greater than "
4649                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4650                 return -EINVAL;
4651         }
4652
4653         rc = pci_enable_sriov(pdev, nr_vfn);
4654         if (rc) {
4655                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4656                                 "2806 Failed to enable sriov on this device "
4657                                 "with vfn number nr_vf:%d, rc:%d\n",
4658                                 nr_vfn, rc);
4659         } else
4660                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4661                                 "2807 Successful enable sriov on this device "
4662                                 "with vfn number nr_vf:%d\n", nr_vfn);
4663         return rc;
4664 }
4665
4666 /**
4667  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4668  * @phba: pointer to lpfc hba data structure.
4669  *
4670  * This routine is invoked to set up the driver internal resources specific to
4671  * support the SLI-3 HBA device it attached to.
4672  *
4673  * Return codes
4674  *      0 - successful
4675  *      other values - error
4676  **/
4677 static int
4678 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4679 {
4680         struct lpfc_sli *psli;
4681         int rc;
4682
4683         /*
4684          * Initialize timers used by driver
4685          */
4686
4687         /* Heartbeat timer */
4688         init_timer(&phba->hb_tmofunc);
4689         phba->hb_tmofunc.function = lpfc_hb_timeout;
4690         phba->hb_tmofunc.data = (unsigned long)phba;
4691
4692         psli = &phba->sli;
4693         /* MBOX heartbeat timer */
4694         init_timer(&psli->mbox_tmo);
4695         psli->mbox_tmo.function = lpfc_mbox_timeout;
4696         psli->mbox_tmo.data = (unsigned long) phba;
4697         /* FCP polling mode timer */
4698         init_timer(&phba->fcp_poll_timer);
4699         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4700         phba->fcp_poll_timer.data = (unsigned long) phba;
4701         /* Fabric block timer */
4702         init_timer(&phba->fabric_block_timer);
4703         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4704         phba->fabric_block_timer.data = (unsigned long) phba;
4705         /* EA polling mode timer */
4706         init_timer(&phba->eratt_poll);
4707         phba->eratt_poll.function = lpfc_poll_eratt;
4708         phba->eratt_poll.data = (unsigned long) phba;
4709
4710         /* Host attention work mask setup */
4711         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4712         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4713
4714         /* Get all the module params for configuring this host */
4715         lpfc_get_cfgparam(phba);
4716         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4717                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4718                 /* check for menlo minimum sg count */
4719                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4720                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4721         }
4722
4723         if (!phba->sli.ring)
4724                 phba->sli.ring = (struct lpfc_sli_ring *)
4725                         kzalloc(LPFC_SLI3_MAX_RING *
4726                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4727         if (!phba->sli.ring)
4728                 return -ENOMEM;
4729
4730         /*
4731          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4732          * used to create the sg_dma_buf_pool must be dynamically calculated.
4733          */
4734
4735         /* Initialize the host templates the configured values. */
4736         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4737         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4738
4739         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
4740         if (phba->cfg_enable_bg) {
4741                 /*
4742                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4743                  * the FCP rsp, and a BDE for each. Sice we have no control
4744                  * over how many protection data segments the SCSI Layer
4745                  * will hand us (ie: there could be one for every block
4746                  * in the IO), we just allocate enough BDEs to accomidate
4747                  * our max amount and we need to limit lpfc_sg_seg_cnt to
4748                  * minimize the risk of running out.
4749                  */
4750                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4751                         sizeof(struct fcp_rsp) +
4752                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
4753
4754                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
4755                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
4756
4757                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
4758                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4759         } else {
4760                 /*
4761                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
4762                  * the FCP rsp, a BDE for each, and a BDE for up to
4763                  * cfg_sg_seg_cnt data segments.
4764                  */
4765                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4766                         sizeof(struct fcp_rsp) +
4767                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4768
4769                 /* Total BDEs in BPL for scsi_sg_list */
4770                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
4771         }
4772
4773         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4774                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
4775                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
4776                         phba->cfg_total_seg_cnt);
4777
4778         phba->max_vpi = LPFC_MAX_VPI;
4779         /* This will be set to correct value after config_port mbox */
4780         phba->max_vports = 0;
4781
4782         /*
4783          * Initialize the SLI Layer to run with lpfc HBAs.
4784          */
4785         lpfc_sli_setup(phba);
4786         lpfc_sli_queue_setup(phba);
4787
4788         /* Allocate device driver memory */
4789         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4790                 return -ENOMEM;
4791
4792         /*
4793          * Enable sr-iov virtual functions if supported and configured
4794          * through the module parameter.
4795          */
4796         if (phba->cfg_sriov_nr_virtfn > 0) {
4797                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4798                                                  phba->cfg_sriov_nr_virtfn);
4799                 if (rc) {
4800                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4801                                         "2808 Requested number of SR-IOV "
4802                                         "virtual functions (%d) is not "
4803                                         "supported\n",
4804                                         phba->cfg_sriov_nr_virtfn);
4805                         phba->cfg_sriov_nr_virtfn = 0;
4806                 }
4807         }
4808
4809         return 0;
4810 }
4811
4812 /**
4813  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4814  * @phba: pointer to lpfc hba data structure.
4815  *
4816  * This routine is invoked to unset the driver internal resources set up
4817  * specific for supporting the SLI-3 HBA device it attached to.
4818  **/
4819 static void
4820 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4821 {
4822         /* Free device driver memory allocated */
4823         lpfc_mem_free_all(phba);
4824
4825         return;
4826 }
4827
4828 /**
4829  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4830  * @phba: pointer to lpfc hba data structure.
4831  *
4832  * This routine is invoked to set up the driver internal resources specific to
4833  * support the SLI-4 HBA device it attached to.
4834  *
4835  * Return codes
4836  *      0 - successful
4837  *      other values - error
4838  **/
4839 static int
4840 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4841 {
4842         struct lpfc_vector_map_info *cpup;
4843         struct lpfc_sli *psli;
4844         LPFC_MBOXQ_t *mboxq;
4845         int rc, i, hbq_count, max_buf_size;
4846         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4847         struct lpfc_mqe *mqe;
4848         int longs;
4849
4850         /* Before proceed, wait for POST done and device ready */
4851         rc = lpfc_sli4_post_status_check(phba);
4852         if (rc)
4853                 return -ENODEV;
4854
4855         /*
4856          * Initialize timers used by driver
4857          */
4858
4859         /* Heartbeat timer */
4860         init_timer(&phba->hb_tmofunc);
4861         phba->hb_tmofunc.function = lpfc_hb_timeout;
4862         phba->hb_tmofunc.data = (unsigned long)phba;
4863         init_timer(&phba->rrq_tmr);
4864         phba->rrq_tmr.function = lpfc_rrq_timeout;
4865         phba->rrq_tmr.data = (unsigned long)phba;
4866
4867         psli = &phba->sli;
4868         /* MBOX heartbeat timer */
4869         init_timer(&psli->mbox_tmo);
4870         psli->mbox_tmo.function = lpfc_mbox_timeout;
4871         psli->mbox_tmo.data = (unsigned long) phba;
4872         /* Fabric block timer */
4873         init_timer(&phba->fabric_block_timer);
4874         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4875         phba->fabric_block_timer.data = (unsigned long) phba;
4876         /* EA polling mode timer */
4877         init_timer(&phba->eratt_poll);
4878         phba->eratt_poll.function = lpfc_poll_eratt;
4879         phba->eratt_poll.data = (unsigned long) phba;
4880         /* FCF rediscover timer */
4881         init_timer(&phba->fcf.redisc_wait);
4882         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4883         phba->fcf.redisc_wait.data = (unsigned long)phba;
4884
4885         /*
4886          * Control structure for handling external multi-buffer mailbox
4887          * command pass-through.
4888          */
4889         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4890                 sizeof(struct lpfc_mbox_ext_buf_ctx));
4891         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4892
4893         /*
4894          * We need to do a READ_CONFIG mailbox command here before
4895          * calling lpfc_get_cfgparam. For VFs this will report the
4896          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4897          * All of the resources allocated
4898          * for this Port are tied to these values.
4899          */
4900         /* Get all the module params for configuring this host */
4901         lpfc_get_cfgparam(phba);
4902         phba->max_vpi = LPFC_MAX_VPI;
4903
4904         /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
4905         phba->cfg_fcp_io_channel = phba->cfg_fcp_eq_count;
4906
4907         /* This will be set to correct value after the read_config mbox */
4908         phba->max_vports = 0;
4909
4910         /* Program the default value of vlan_id and fc_map */
4911         phba->valid_vlan = 0;
4912         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4913         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4914         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4915
4916         /*
4917          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
4918          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
4919          */
4920         if (!phba->sli.ring)
4921                 phba->sli.ring = kzalloc(
4922                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
4923                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4924         if (!phba->sli.ring)
4925                 return -ENOMEM;
4926
4927         /*
4928          * It doesn't matter what family our adapter is in, we are
4929          * limited to 2 Pages, 512 SGEs, for our SGL.
4930          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
4931          */
4932         max_buf_size = (2 * SLI4_PAGE_SIZE);
4933         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
4934                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
4935
4936         /*
4937          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
4938          * used to create the sg_dma_buf_pool must be dynamically calculated.
4939          */
4940
4941         if (phba->cfg_enable_bg) {
4942                 /*
4943                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
4944                  * the FCP rsp, and a SGE for each. Sice we have no control
4945                  * over how many protection data segments the SCSI Layer
4946                  * will hand us (ie: there could be one for every block
4947                  * in the IO), we just allocate enough SGEs to accomidate
4948                  * our max amount and we need to limit lpfc_sg_seg_cnt to
4949                  * minimize the risk of running out.
4950                  */
4951                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4952                         sizeof(struct fcp_rsp) + max_buf_size;
4953
4954                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
4955                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
4956
4957                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
4958                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
4959         } else {
4960                 /*
4961                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
4962                  * the FCP rsp, a SGE for each, and a SGE for up to
4963                  * cfg_sg_seg_cnt data segments.
4964                  */
4965                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4966                         sizeof(struct fcp_rsp) +
4967                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
4968
4969                 /* Total SGEs for scsi_sg_list */
4970                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
4971                 /*
4972                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
4973                  * to post 1 page for the SGL.
4974                  */
4975         }
4976
4977         /* Initialize the host templates with the updated values. */
4978         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4979         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4980
4981         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
4982                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
4983         else
4984                 phba->cfg_sg_dma_buf_size =
4985                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
4986
4987         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4988                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
4989                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
4990                         phba->cfg_total_seg_cnt);
4991
4992         /* Initialize buffer queue management fields */
4993         hbq_count = lpfc_sli_hbq_count();
4994         for (i = 0; i < hbq_count; ++i)
4995                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4996         INIT_LIST_HEAD(&phba->rb_pend_list);
4997         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4998         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4999
5000         /*
5001          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5002          */
5003         /* Initialize the Abort scsi buffer list used by driver */
5004         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5005         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5006         /* This abort list used by worker thread */
5007         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5008
5009         /*
5010          * Initialize driver internal slow-path work queues
5011          */
5012
5013         /* Driver internel slow-path CQ Event pool */
5014         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5015         /* Response IOCB work queue list */
5016         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5017         /* Asynchronous event CQ Event work queue list */
5018         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5019         /* Fast-path XRI aborted CQ Event work queue list */
5020         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5021         /* Slow-path XRI aborted CQ Event work queue list */
5022         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5023         /* Receive queue CQ Event work queue list */
5024         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5025
5026         /* Initialize extent block lists. */
5027         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5028         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5029         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5030         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5031
5032         /* Initialize the driver internal SLI layer lists. */
5033         lpfc_sli_setup(phba);
5034         lpfc_sli_queue_setup(phba);
5035
5036         /* Allocate device driver memory */
5037         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5038         if (rc)
5039                 return -ENOMEM;
5040
5041         /* IF Type 2 ports get initialized now. */
5042         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5043             LPFC_SLI_INTF_IF_TYPE_2) {
5044                 rc = lpfc_pci_function_reset(phba);
5045                 if (unlikely(rc))
5046                         return -ENODEV;
5047         }
5048
5049         /* Create the bootstrap mailbox command */
5050         rc = lpfc_create_bootstrap_mbox(phba);
5051         if (unlikely(rc))
5052                 goto out_free_mem;
5053
5054         /* Set up the host's endian order with the device. */
5055         rc = lpfc_setup_endian_order(phba);
5056         if (unlikely(rc))
5057                 goto out_free_bsmbx;
5058
5059         /* Set up the hba's configuration parameters. */
5060         rc = lpfc_sli4_read_config(phba);
5061         if (unlikely(rc))
5062                 goto out_free_bsmbx;
5063
5064         /* IF Type 0 ports get initialized now. */
5065         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5066             LPFC_SLI_INTF_IF_TYPE_0) {
5067                 rc = lpfc_pci_function_reset(phba);
5068                 if (unlikely(rc))
5069                         goto out_free_bsmbx;
5070         }
5071
5072         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5073                                                        GFP_KERNEL);
5074         if (!mboxq) {
5075                 rc = -ENOMEM;
5076                 goto out_free_bsmbx;
5077         }
5078
5079         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5080         lpfc_supported_pages(mboxq);
5081         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5082         if (!rc) {
5083                 mqe = &mboxq->u.mqe;
5084                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5085                        LPFC_MAX_SUPPORTED_PAGES);
5086                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5087                         switch (pn_page[i]) {
5088                         case LPFC_SLI4_PARAMETERS:
5089                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5090                                 break;
5091                         default:
5092                                 break;
5093                         }
5094                 }
5095                 /* Read the port's SLI4 Parameters capabilities if supported. */
5096                 if (phba->sli4_hba.pc_sli4_params.supported)
5097                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5098                 if (rc) {
5099                         mempool_free(mboxq, phba->mbox_mem_pool);
5100                         rc = -EIO;
5101                         goto out_free_bsmbx;
5102                 }
5103         }
5104         /*
5105          * Get sli4 parameters that override parameters from Port capabilities.
5106          * If this call fails, it isn't critical unless the SLI4 parameters come
5107          * back in conflict.
5108          */
5109         rc = lpfc_get_sli4_parameters(phba, mboxq);
5110         if (rc) {
5111                 if (phba->sli4_hba.extents_in_use &&
5112                     phba->sli4_hba.rpi_hdrs_in_use) {
5113                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5114                                 "2999 Unsupported SLI4 Parameters "
5115                                 "Extents and RPI headers enabled.\n");
5116                         goto out_free_bsmbx;
5117                 }
5118         }
5119         mempool_free(mboxq, phba->mbox_mem_pool);
5120         /* Verify all the SLI4 queues */
5121         rc = lpfc_sli4_queue_verify(phba);
5122         if (rc)
5123                 goto out_free_bsmbx;
5124
5125         /* Create driver internal CQE event pool */
5126         rc = lpfc_sli4_cq_event_pool_create(phba);
5127         if (rc)
5128                 goto out_free_bsmbx;
5129
5130         /* Initialize sgl lists per host */
5131         lpfc_init_sgl_list(phba);
5132
5133         /* Allocate and initialize active sgl array */
5134         rc = lpfc_init_active_sgl_array(phba);
5135         if (rc) {
5136                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5137                                 "1430 Failed to initialize sgl list.\n");
5138                 goto out_destroy_cq_event_pool;
5139         }
5140         rc = lpfc_sli4_init_rpi_hdrs(phba);
5141         if (rc) {
5142                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5143                                 "1432 Failed to initialize rpi headers.\n");
5144                 goto out_free_active_sgl;
5145         }
5146
5147         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5148         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5149         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5150                                          GFP_KERNEL);
5151         if (!phba->fcf.fcf_rr_bmask) {
5152                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5153                                 "2759 Failed allocate memory for FCF round "
5154                                 "robin failover bmask\n");
5155                 rc = -ENOMEM;
5156                 goto out_remove_rpi_hdrs;
5157         }
5158
5159         phba->sli4_hba.fcp_eq_hdl =
5160                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5161                             phba->cfg_fcp_io_channel), GFP_KERNEL);
5162         if (!phba->sli4_hba.fcp_eq_hdl) {
5163                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5164                                 "2572 Failed allocate memory for "
5165                                 "fast-path per-EQ handle array\n");
5166                 rc = -ENOMEM;
5167                 goto out_free_fcf_rr_bmask;
5168         }
5169
5170         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5171                                       phba->cfg_fcp_io_channel), GFP_KERNEL);
5172         if (!phba->sli4_hba.msix_entries) {
5173                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5174                                 "2573 Failed allocate memory for msi-x "
5175                                 "interrupt vector entries\n");
5176                 rc = -ENOMEM;
5177                 goto out_free_fcp_eq_hdl;
5178         }
5179
5180         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5181                                          phba->sli4_hba.num_present_cpu),
5182                                          GFP_KERNEL);
5183         if (!phba->sli4_hba.cpu_map) {
5184                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5185                                 "3327 Failed allocate memory for msi-x "
5186                                 "interrupt vector mapping\n");
5187                 rc = -ENOMEM;
5188                 goto out_free_msix;
5189         }
5190         if (lpfc_used_cpu == NULL) {
5191                 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5192                                          GFP_KERNEL);
5193                 if (!lpfc_used_cpu) {
5194                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5195                                         "3335 Failed allocate memory for msi-x "
5196                                         "interrupt vector mapping\n");
5197                         kfree(phba->sli4_hba.cpu_map);
5198                         rc = -ENOMEM;
5199                         goto out_free_msix;
5200                 }
5201                 for (i = 0; i < lpfc_present_cpu; i++)
5202                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5203         }
5204
5205         /* Initialize io channels for round robin */
5206         cpup = phba->sli4_hba.cpu_map;
5207         rc = 0;
5208         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5209                 cpup->channel_id = rc;
5210                 rc++;
5211                 if (rc >= phba->cfg_fcp_io_channel)
5212                         rc = 0;
5213         }
5214
5215         /*
5216          * Enable sr-iov virtual functions if supported and configured
5217          * through the module parameter.
5218          */
5219         if (phba->cfg_sriov_nr_virtfn > 0) {
5220                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5221                                                  phba->cfg_sriov_nr_virtfn);
5222                 if (rc) {
5223                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5224                                         "3020 Requested number of SR-IOV "
5225                                         "virtual functions (%d) is not "
5226                                         "supported\n",
5227                                         phba->cfg_sriov_nr_virtfn);
5228                         phba->cfg_sriov_nr_virtfn = 0;
5229                 }
5230         }
5231
5232         return 0;
5233
5234 out_free_msix:
5235         kfree(phba->sli4_hba.msix_entries);
5236 out_free_fcp_eq_hdl:
5237         kfree(phba->sli4_hba.fcp_eq_hdl);
5238 out_free_fcf_rr_bmask:
5239         kfree(phba->fcf.fcf_rr_bmask);
5240 out_remove_rpi_hdrs:
5241         lpfc_sli4_remove_rpi_hdrs(phba);
5242 out_free_active_sgl:
5243         lpfc_free_active_sgl(phba);
5244 out_destroy_cq_event_pool:
5245         lpfc_sli4_cq_event_pool_destroy(phba);
5246 out_free_bsmbx:
5247         lpfc_destroy_bootstrap_mbox(phba);
5248 out_free_mem:
5249         lpfc_mem_free(phba);
5250         return rc;
5251 }
5252
5253 /**
5254  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5255  * @phba: pointer to lpfc hba data structure.
5256  *
5257  * This routine is invoked to unset the driver internal resources set up
5258  * specific for supporting the SLI-4 HBA device it attached to.
5259  **/
5260 static void
5261 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5262 {
5263         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5264
5265         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5266         kfree(phba->sli4_hba.cpu_map);
5267         phba->sli4_hba.num_present_cpu = 0;
5268         phba->sli4_hba.num_online_cpu = 0;
5269
5270         /* Free memory allocated for msi-x interrupt vector entries */
5271         kfree(phba->sli4_hba.msix_entries);
5272
5273         /* Free memory allocated for fast-path work queue handles */
5274         kfree(phba->sli4_hba.fcp_eq_hdl);
5275
5276         /* Free the allocated rpi headers. */
5277         lpfc_sli4_remove_rpi_hdrs(phba);
5278         lpfc_sli4_remove_rpis(phba);
5279
5280         /* Free eligible FCF index bmask */
5281         kfree(phba->fcf.fcf_rr_bmask);
5282
5283         /* Free the ELS sgl list */
5284         lpfc_free_active_sgl(phba);
5285         lpfc_free_els_sgl_list(phba);
5286
5287         /* Free the completion queue EQ event pool */
5288         lpfc_sli4_cq_event_release_all(phba);
5289         lpfc_sli4_cq_event_pool_destroy(phba);
5290
5291         /* Release resource identifiers. */
5292         lpfc_sli4_dealloc_resource_identifiers(phba);
5293
5294         /* Free the bsmbx region. */
5295         lpfc_destroy_bootstrap_mbox(phba);
5296
5297         /* Free the SLI Layer memory with SLI4 HBAs */
5298         lpfc_mem_free_all(phba);
5299
5300         /* Free the current connect table */
5301         list_for_each_entry_safe(conn_entry, next_conn_entry,
5302                 &phba->fcf_conn_rec_list, list) {
5303                 list_del_init(&conn_entry->list);
5304                 kfree(conn_entry);
5305         }
5306
5307         return;
5308 }
5309
5310 /**
5311  * lpfc_init_api_table_setup - Set up init api function jump table
5312  * @phba: The hba struct for which this call is being executed.
5313  * @dev_grp: The HBA PCI-Device group number.
5314  *
5315  * This routine sets up the device INIT interface API function jump table
5316  * in @phba struct.
5317  *
5318  * Returns: 0 - success, -ENODEV - failure.
5319  **/
5320 int
5321 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5322 {
5323         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5324         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5325         phba->lpfc_selective_reset = lpfc_selective_reset;
5326         switch (dev_grp) {
5327         case LPFC_PCI_DEV_LP:
5328                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5329                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5330                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5331                 break;
5332         case LPFC_PCI_DEV_OC:
5333                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5334                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5335                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5336                 break;
5337         default:
5338                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5339                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5340                                 dev_grp);
5341                 return -ENODEV;
5342                 break;
5343         }
5344         return 0;
5345 }
5346
5347 /**
5348  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5349  * @phba: pointer to lpfc hba data structure.
5350  *
5351  * This routine is invoked to set up the driver internal resources before the
5352  * device specific resource setup to support the HBA device it attached to.
5353  *
5354  * Return codes
5355  *      0 - successful
5356  *      other values - error
5357  **/
5358 static int
5359 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5360 {
5361         /*
5362          * Driver resources common to all SLI revisions
5363          */
5364         atomic_set(&phba->fast_event_count, 0);
5365         spin_lock_init(&phba->hbalock);
5366
5367         /* Initialize ndlp management spinlock */
5368         spin_lock_init(&phba->ndlp_lock);
5369
5370         INIT_LIST_HEAD(&phba->port_list);
5371         INIT_LIST_HEAD(&phba->work_list);
5372         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5373
5374         /* Initialize the wait queue head for the kernel thread */
5375         init_waitqueue_head(&phba->work_waitq);
5376
5377         /* Initialize the scsi buffer list used by driver for scsi IO */
5378         spin_lock_init(&phba->scsi_buf_list_get_lock);
5379         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5380         spin_lock_init(&phba->scsi_buf_list_put_lock);
5381         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5382
5383         /* Initialize the fabric iocb list */
5384         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5385
5386         /* Initialize list to save ELS buffers */
5387         INIT_LIST_HEAD(&phba->elsbuf);
5388
5389         /* Initialize FCF connection rec list */
5390         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5391
5392         return 0;
5393 }
5394
5395 /**
5396  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5397  * @phba: pointer to lpfc hba data structure.
5398  *
5399  * This routine is invoked to set up the driver internal resources after the
5400  * device specific resource setup to support the HBA device it attached to.
5401  *
5402  * Return codes
5403  *      0 - successful
5404  *      other values - error
5405  **/
5406 static int
5407 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5408 {
5409         int error;
5410
5411         /* Startup the kernel thread for this host adapter. */
5412         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5413                                           "lpfc_worker_%d", phba->brd_no);
5414         if (IS_ERR(phba->worker_thread)) {
5415                 error = PTR_ERR(phba->worker_thread);
5416                 return error;
5417         }
5418
5419         return 0;
5420 }
5421
5422 /**
5423  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5424  * @phba: pointer to lpfc hba data structure.
5425  *
5426  * This routine is invoked to unset the driver internal resources set up after
5427  * the device specific resource setup for supporting the HBA device it
5428  * attached to.
5429  **/
5430 static void
5431 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5432 {
5433         /* Stop kernel worker thread */
5434         kthread_stop(phba->worker_thread);
5435 }
5436
5437 /**
5438  * lpfc_free_iocb_list - Free iocb list.
5439  * @phba: pointer to lpfc hba data structure.
5440  *
5441  * This routine is invoked to free the driver's IOCB list and memory.
5442  **/
5443 static void
5444 lpfc_free_iocb_list(struct lpfc_hba *phba)
5445 {
5446         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5447
5448         spin_lock_irq(&phba->hbalock);
5449         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5450                                  &phba->lpfc_iocb_list, list) {
5451                 list_del(&iocbq_entry->list);
5452                 kfree(iocbq_entry);
5453                 phba->total_iocbq_bufs--;
5454         }
5455         spin_unlock_irq(&phba->hbalock);
5456
5457         return;
5458 }
5459
5460 /**
5461  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5462  * @phba: pointer to lpfc hba data structure.
5463  *
5464  * This routine is invoked to allocate and initizlize the driver's IOCB
5465  * list and set up the IOCB tag array accordingly.
5466  *
5467  * Return codes
5468  *      0 - successful
5469  *      other values - error
5470  **/
5471 static int
5472 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5473 {
5474         struct lpfc_iocbq *iocbq_entry = NULL;
5475         uint16_t iotag;
5476         int i;
5477
5478         /* Initialize and populate the iocb list per host.  */
5479         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5480         for (i = 0; i < iocb_count; i++) {
5481                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5482                 if (iocbq_entry == NULL) {
5483                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5484                                 "expected %d count. Unloading driver.\n",
5485                                 __func__, i, LPFC_IOCB_LIST_CNT);
5486                         goto out_free_iocbq;
5487                 }
5488
5489                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5490                 if (iotag == 0) {
5491                         kfree(iocbq_entry);
5492                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5493                                 "Unloading driver.\n", __func__);
5494                         goto out_free_iocbq;
5495                 }
5496                 iocbq_entry->sli4_lxritag = NO_XRI;
5497                 iocbq_entry->sli4_xritag = NO_XRI;
5498
5499                 spin_lock_irq(&phba->hbalock);
5500                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5501                 phba->total_iocbq_bufs++;
5502                 spin_unlock_irq(&phba->hbalock);
5503         }
5504
5505         return 0;
5506
5507 out_free_iocbq:
5508         lpfc_free_iocb_list(phba);
5509
5510         return -ENOMEM;
5511 }
5512
5513 /**
5514  * lpfc_free_sgl_list - Free a given sgl list.
5515  * @phba: pointer to lpfc hba data structure.
5516  * @sglq_list: pointer to the head of sgl list.
5517  *
5518  * This routine is invoked to free a give sgl list and memory.
5519  **/
5520 void
5521 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5522 {
5523         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5524
5525         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5526                 list_del(&sglq_entry->list);
5527                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5528                 kfree(sglq_entry);
5529         }
5530 }
5531
5532 /**
5533  * lpfc_free_els_sgl_list - Free els sgl list.
5534  * @phba: pointer to lpfc hba data structure.
5535  *
5536  * This routine is invoked to free the driver's els sgl list and memory.
5537  **/
5538 static void
5539 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5540 {
5541         LIST_HEAD(sglq_list);
5542
5543         /* Retrieve all els sgls from driver list */
5544         spin_lock_irq(&phba->hbalock);
5545         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5546         spin_unlock_irq(&phba->hbalock);
5547
5548         /* Now free the sgl list */
5549         lpfc_free_sgl_list(phba, &sglq_list);
5550 }
5551
5552 /**
5553  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5554  * @phba: pointer to lpfc hba data structure.
5555  *
5556  * This routine is invoked to allocate the driver's active sgl memory.
5557  * This array will hold the sglq_entry's for active IOs.
5558  **/
5559 static int
5560 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5561 {
5562         int size;
5563         size = sizeof(struct lpfc_sglq *);
5564         size *= phba->sli4_hba.max_cfg_param.max_xri;
5565
5566         phba->sli4_hba.lpfc_sglq_active_list =
5567                 kzalloc(size, GFP_KERNEL);
5568         if (!phba->sli4_hba.lpfc_sglq_active_list)
5569                 return -ENOMEM;
5570         return 0;
5571 }
5572
5573 /**
5574  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5575  * @phba: pointer to lpfc hba data structure.
5576  *
5577  * This routine is invoked to walk through the array of active sglq entries
5578  * and free all of the resources.
5579  * This is just a place holder for now.
5580  **/
5581 static void
5582 lpfc_free_active_sgl(struct lpfc_hba *phba)
5583 {
5584         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5585 }
5586
5587 /**
5588  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5589  * @phba: pointer to lpfc hba data structure.
5590  *
5591  * This routine is invoked to allocate and initizlize the driver's sgl
5592  * list and set up the sgl xritag tag array accordingly.
5593  *
5594  **/
5595 static void
5596 lpfc_init_sgl_list(struct lpfc_hba *phba)
5597 {
5598         /* Initialize and populate the sglq list per host/VF. */
5599         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5600         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5601
5602         /* els xri-sgl book keeping */
5603         phba->sli4_hba.els_xri_cnt = 0;
5604
5605         /* scsi xri-buffer book keeping */
5606         phba->sli4_hba.scsi_xri_cnt = 0;
5607 }
5608
5609 /**
5610  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5611  * @phba: pointer to lpfc hba data structure.
5612  *
5613  * This routine is invoked to post rpi header templates to the
5614  * port for those SLI4 ports that do not support extents.  This routine
5615  * posts a PAGE_SIZE memory region to the port to hold up to
5616  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5617  * and should be called only when interrupts are disabled.
5618  *
5619  * Return codes
5620  *      0 - successful
5621  *      -ERROR - otherwise.
5622  **/
5623 int
5624 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5625 {
5626         int rc = 0;
5627         struct lpfc_rpi_hdr *rpi_hdr;
5628
5629         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5630         if (!phba->sli4_hba.rpi_hdrs_in_use)
5631                 return rc;
5632         if (phba->sli4_hba.extents_in_use)
5633                 return -EIO;
5634
5635         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5636         if (!rpi_hdr) {
5637                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5638                                 "0391 Error during rpi post operation\n");
5639                 lpfc_sli4_remove_rpis(phba);
5640                 rc = -ENODEV;
5641         }
5642
5643         return rc;
5644 }
5645
5646 /**
5647  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5648  * @phba: pointer to lpfc hba data structure.
5649  *
5650  * This routine is invoked to allocate a single 4KB memory region to
5651  * support rpis and stores them in the phba.  This single region
5652  * provides support for up to 64 rpis.  The region is used globally
5653  * by the device.
5654  *
5655  * Returns:
5656  *   A valid rpi hdr on success.
5657  *   A NULL pointer on any failure.
5658  **/
5659 struct lpfc_rpi_hdr *
5660 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5661 {
5662         uint16_t rpi_limit, curr_rpi_range;
5663         struct lpfc_dmabuf *dmabuf;
5664         struct lpfc_rpi_hdr *rpi_hdr;
5665         uint32_t rpi_count;
5666
5667         /*
5668          * If the SLI4 port supports extents, posting the rpi header isn't
5669          * required.  Set the expected maximum count and let the actual value
5670          * get set when extents are fully allocated.
5671          */
5672         if (!phba->sli4_hba.rpi_hdrs_in_use)
5673                 return NULL;
5674         if (phba->sli4_hba.extents_in_use)
5675                 return NULL;
5676
5677         /* The limit on the logical index is just the max_rpi count. */
5678         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5679         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5680
5681         spin_lock_irq(&phba->hbalock);
5682         /*
5683          * Establish the starting RPI in this header block.  The starting
5684          * rpi is normalized to a zero base because the physical rpi is
5685          * port based.
5686          */
5687         curr_rpi_range = phba->sli4_hba.next_rpi;
5688         spin_unlock_irq(&phba->hbalock);
5689
5690         /*
5691          * The port has a limited number of rpis. The increment here
5692          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5693          * and to allow the full max_rpi range per port.
5694          */
5695         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5696                 rpi_count = rpi_limit - curr_rpi_range;
5697         else
5698                 rpi_count = LPFC_RPI_HDR_COUNT;
5699
5700         if (!rpi_count)
5701                 return NULL;
5702         /*
5703          * First allocate the protocol header region for the port.  The
5704          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5705          */
5706         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5707         if (!dmabuf)
5708                 return NULL;
5709
5710         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5711                                           LPFC_HDR_TEMPLATE_SIZE,
5712                                           &dmabuf->phys,
5713                                           GFP_KERNEL);
5714         if (!dmabuf->virt) {
5715                 rpi_hdr = NULL;
5716                 goto err_free_dmabuf;
5717         }
5718
5719         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5720         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5721                 rpi_hdr = NULL;
5722                 goto err_free_coherent;
5723         }
5724
5725         /* Save the rpi header data for cleanup later. */
5726         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5727         if (!rpi_hdr)
5728                 goto err_free_coherent;
5729
5730         rpi_hdr->dmabuf = dmabuf;
5731         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5732         rpi_hdr->page_count = 1;
5733         spin_lock_irq(&phba->hbalock);
5734
5735         /* The rpi_hdr stores the logical index only. */
5736         rpi_hdr->start_rpi = curr_rpi_range;
5737         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5738
5739         /*
5740          * The next_rpi stores the next logical module-64 rpi value used
5741          * to post physical rpis in subsequent rpi postings.
5742          */
5743         phba->sli4_hba.next_rpi += rpi_count;
5744         spin_unlock_irq(&phba->hbalock);
5745         return rpi_hdr;
5746
5747  err_free_coherent:
5748         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5749                           dmabuf->virt, dmabuf->phys);
5750  err_free_dmabuf:
5751         kfree(dmabuf);
5752         return NULL;
5753 }
5754
5755 /**
5756  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5757  * @phba: pointer to lpfc hba data structure.
5758  *
5759  * This routine is invoked to remove all memory resources allocated
5760  * to support rpis for SLI4 ports not supporting extents. This routine
5761  * presumes the caller has released all rpis consumed by fabric or port
5762  * logins and is prepared to have the header pages removed.
5763  **/
5764 void
5765 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5766 {
5767         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5768
5769         if (!phba->sli4_hba.rpi_hdrs_in_use)
5770                 goto exit;
5771
5772         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5773                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5774                 list_del(&rpi_hdr->list);
5775                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5776                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5777                 kfree(rpi_hdr->dmabuf);
5778                 kfree(rpi_hdr);
5779         }
5780  exit:
5781         /* There are no rpis available to the port now. */
5782         phba->sli4_hba.next_rpi = 0;
5783 }
5784
5785 /**
5786  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5787  * @pdev: pointer to pci device data structure.
5788  *
5789  * This routine is invoked to allocate the driver hba data structure for an
5790  * HBA device. If the allocation is successful, the phba reference to the
5791  * PCI device data structure is set.
5792  *
5793  * Return codes
5794  *      pointer to @phba - successful
5795  *      NULL - error
5796  **/
5797 static struct lpfc_hba *
5798 lpfc_hba_alloc(struct pci_dev *pdev)
5799 {
5800         struct lpfc_hba *phba;
5801
5802         /* Allocate memory for HBA structure */
5803         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5804         if (!phba) {
5805                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5806                 return NULL;
5807         }
5808
5809         /* Set reference to PCI device in HBA structure */
5810         phba->pcidev = pdev;
5811
5812         /* Assign an unused board number */
5813         phba->brd_no = lpfc_get_instance();
5814         if (phba->brd_no < 0) {
5815                 kfree(phba);
5816                 return NULL;
5817         }
5818
5819         spin_lock_init(&phba->ct_ev_lock);
5820         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5821
5822         return phba;
5823 }
5824
5825 /**
5826  * lpfc_hba_free - Free driver hba data structure with a device.
5827  * @phba: pointer to lpfc hba data structure.
5828  *
5829  * This routine is invoked to free the driver hba data structure with an
5830  * HBA device.
5831  **/
5832 static void
5833 lpfc_hba_free(struct lpfc_hba *phba)
5834 {
5835         /* Release the driver assigned board number */
5836         idr_remove(&lpfc_hba_index, phba->brd_no);
5837
5838         /* Free memory allocated with sli rings */
5839         kfree(phba->sli.ring);
5840         phba->sli.ring = NULL;
5841
5842         kfree(phba);
5843         return;
5844 }
5845
5846 /**
5847  * lpfc_create_shost - Create hba physical port with associated scsi host.
5848  * @phba: pointer to lpfc hba data structure.
5849  *
5850  * This routine is invoked to create HBA physical port and associate a SCSI
5851  * host with it.
5852  *
5853  * Return codes
5854  *      0 - successful
5855  *      other values - error
5856  **/
5857 static int
5858 lpfc_create_shost(struct lpfc_hba *phba)
5859 {
5860         struct lpfc_vport *vport;
5861         struct Scsi_Host  *shost;
5862
5863         /* Initialize HBA FC structure */
5864         phba->fc_edtov = FF_DEF_EDTOV;
5865         phba->fc_ratov = FF_DEF_RATOV;
5866         phba->fc_altov = FF_DEF_ALTOV;
5867         phba->fc_arbtov = FF_DEF_ARBTOV;
5868
5869         atomic_set(&phba->sdev_cnt, 0);
5870         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5871         if (!vport)
5872                 return -ENODEV;
5873
5874         shost = lpfc_shost_from_vport(vport);
5875         phba->pport = vport;
5876         lpfc_debugfs_initialize(vport);
5877         /* Put reference to SCSI host to driver's device private data */
5878         pci_set_drvdata(phba->pcidev, shost);
5879
5880         return 0;
5881 }
5882
5883 /**
5884  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5885  * @phba: pointer to lpfc hba data structure.
5886  *
5887  * This routine is invoked to destroy HBA physical port and the associated
5888  * SCSI host.
5889  **/
5890 static void
5891 lpfc_destroy_shost(struct lpfc_hba *phba)
5892 {
5893         struct lpfc_vport *vport = phba->pport;
5894
5895         /* Destroy physical port that associated with the SCSI host */
5896         destroy_port(vport);
5897
5898         return;
5899 }
5900
5901 /**
5902  * lpfc_setup_bg - Setup Block guard structures and debug areas.
5903  * @phba: pointer to lpfc hba data structure.
5904  * @shost: the shost to be used to detect Block guard settings.
5905  *
5906  * This routine sets up the local Block guard protocol settings for @shost.
5907  * This routine also allocates memory for debugging bg buffers.
5908  **/
5909 static void
5910 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5911 {
5912         uint32_t old_mask;
5913         uint32_t old_guard;
5914
5915         int pagecnt = 10;
5916         if (lpfc_prot_mask && lpfc_prot_guard) {
5917                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5918                                 "1478 Registering BlockGuard with the "
5919                                 "SCSI layer\n");
5920
5921                 old_mask = lpfc_prot_mask;
5922                 old_guard = lpfc_prot_guard;
5923
5924                 /* Only allow supported values */
5925                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
5926                         SHOST_DIX_TYPE0_PROTECTION |
5927                         SHOST_DIX_TYPE1_PROTECTION);
5928                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
5929
5930                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
5931                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
5932                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
5933
5934                 if (lpfc_prot_mask && lpfc_prot_guard) {
5935                         if ((old_mask != lpfc_prot_mask) ||
5936                                 (old_guard != lpfc_prot_guard))
5937                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5938                                         "1475 Registering BlockGuard with the "
5939                                         "SCSI layer: mask %d  guard %d\n",
5940                                         lpfc_prot_mask, lpfc_prot_guard);
5941
5942                         scsi_host_set_prot(shost, lpfc_prot_mask);
5943                         scsi_host_set_guard(shost, lpfc_prot_guard);
5944                 } else
5945                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5946                                 "1479 Not Registering BlockGuard with the SCSI "
5947                                 "layer, Bad protection parameters: %d %d\n",
5948                                 old_mask, old_guard);
5949         }
5950
5951         if (!_dump_buf_data) {
5952                 while (pagecnt) {
5953                         spin_lock_init(&_dump_buf_lock);
5954                         _dump_buf_data =
5955                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5956                         if (_dump_buf_data) {
5957                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5958                                         "9043 BLKGRD: allocated %d pages for "
5959                                        "_dump_buf_data at 0x%p\n",
5960                                        (1 << pagecnt), _dump_buf_data);
5961                                 _dump_buf_data_order = pagecnt;
5962                                 memset(_dump_buf_data, 0,
5963                                        ((1 << PAGE_SHIFT) << pagecnt));
5964                                 break;
5965                         } else
5966                                 --pagecnt;
5967                 }
5968                 if (!_dump_buf_data_order)
5969                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5970                                 "9044 BLKGRD: ERROR unable to allocate "
5971                                "memory for hexdump\n");
5972         } else
5973                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5974                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5975                        "\n", _dump_buf_data);
5976         if (!_dump_buf_dif) {
5977                 while (pagecnt) {
5978                         _dump_buf_dif =
5979                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5980                         if (_dump_buf_dif) {
5981                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5982                                         "9046 BLKGRD: allocated %d pages for "
5983                                        "_dump_buf_dif at 0x%p\n",
5984                                        (1 << pagecnt), _dump_buf_dif);
5985                                 _dump_buf_dif_order = pagecnt;
5986                                 memset(_dump_buf_dif, 0,
5987                                        ((1 << PAGE_SHIFT) << pagecnt));
5988                                 break;
5989                         } else
5990                                 --pagecnt;
5991                 }
5992                 if (!_dump_buf_dif_order)
5993                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5994                         "9047 BLKGRD: ERROR unable to allocate "
5995                                "memory for hexdump\n");
5996         } else
5997                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5998                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5999                        _dump_buf_dif);
6000 }
6001
6002 /**
6003  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6004  * @phba: pointer to lpfc hba data structure.
6005  *
6006  * This routine is invoked to perform all the necessary post initialization
6007  * setup for the device.
6008  **/
6009 static void
6010 lpfc_post_init_setup(struct lpfc_hba *phba)
6011 {
6012         struct Scsi_Host  *shost;
6013         struct lpfc_adapter_event_header adapter_event;
6014
6015         /* Get the default values for Model Name and Description */
6016         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6017
6018         /*
6019          * hba setup may have changed the hba_queue_depth so we need to
6020          * adjust the value of can_queue.
6021          */
6022         shost = pci_get_drvdata(phba->pcidev);
6023         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6024         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6025                 lpfc_setup_bg(phba, shost);
6026
6027         lpfc_host_attrib_init(shost);
6028
6029         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6030                 spin_lock_irq(shost->host_lock);
6031                 lpfc_poll_start_timer(phba);
6032                 spin_unlock_irq(shost->host_lock);
6033         }
6034
6035         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6036                         "0428 Perform SCSI scan\n");
6037         /* Send board arrival event to upper layer */
6038         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6039         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6040         fc_host_post_vendor_event(shost, fc_get_event_number(),
6041                                   sizeof(adapter_event),
6042                                   (char *) &adapter_event,
6043                                   LPFC_NL_VENDOR_ID);
6044         return;
6045 }
6046
6047 /**
6048  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6049  * @phba: pointer to lpfc hba data structure.
6050  *
6051  * This routine is invoked to set up the PCI device memory space for device
6052  * with SLI-3 interface spec.
6053  *
6054  * Return codes
6055  *      0 - successful
6056  *      other values - error
6057  **/
6058 static int
6059 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6060 {
6061         struct pci_dev *pdev;
6062         unsigned long bar0map_len, bar2map_len;
6063         int i, hbq_count;
6064         void *ptr;
6065         int error = -ENODEV;
6066
6067         /* Obtain PCI device reference */
6068         if (!phba->pcidev)
6069                 return error;
6070         else
6071                 pdev = phba->pcidev;
6072
6073         /* Set the device DMA mask size */
6074         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6075          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6076                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6077                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6078                         return error;
6079                 }
6080         }
6081
6082         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6083          * required by each mapping.
6084          */
6085         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6086         bar0map_len = pci_resource_len(pdev, 0);
6087
6088         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6089         bar2map_len = pci_resource_len(pdev, 2);
6090
6091         /* Map HBA SLIM to a kernel virtual address. */
6092         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6093         if (!phba->slim_memmap_p) {
6094                 dev_printk(KERN_ERR, &pdev->dev,
6095                            "ioremap failed for SLIM memory.\n");
6096                 goto out;
6097         }
6098
6099         /* Map HBA Control Registers to a kernel virtual address. */
6100         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6101         if (!phba->ctrl_regs_memmap_p) {
6102                 dev_printk(KERN_ERR, &pdev->dev,
6103                            "ioremap failed for HBA control registers.\n");
6104                 goto out_iounmap_slim;
6105         }
6106
6107         /* Allocate memory for SLI-2 structures */
6108         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
6109                                                SLI2_SLIM_SIZE,
6110                                                &phba->slim2p.phys,
6111                                                GFP_KERNEL);
6112         if (!phba->slim2p.virt)
6113                 goto out_iounmap;
6114
6115         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
6116         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6117         phba->mbox_ext = (phba->slim2p.virt +
6118                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6119         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6120         phba->IOCBs = (phba->slim2p.virt +
6121                        offsetof(struct lpfc_sli2_slim, IOCBs));
6122
6123         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6124                                                  lpfc_sli_hbq_size(),
6125                                                  &phba->hbqslimp.phys,
6126                                                  GFP_KERNEL);
6127         if (!phba->hbqslimp.virt)
6128                 goto out_free_slim;
6129
6130         hbq_count = lpfc_sli_hbq_count();
6131         ptr = phba->hbqslimp.virt;
6132         for (i = 0; i < hbq_count; ++i) {
6133                 phba->hbqs[i].hbq_virt = ptr;
6134                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6135                 ptr += (lpfc_hbq_defs[i]->entry_count *
6136                         sizeof(struct lpfc_hbq_entry));
6137         }
6138         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6139         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6140
6141         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6142
6143         INIT_LIST_HEAD(&phba->rb_pend_list);
6144
6145         phba->MBslimaddr = phba->slim_memmap_p;
6146         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6147         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6148         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6149         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6150
6151         return 0;
6152
6153 out_free_slim:
6154         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6155                           phba->slim2p.virt, phba->slim2p.phys);
6156 out_iounmap:
6157         iounmap(phba->ctrl_regs_memmap_p);
6158 out_iounmap_slim:
6159         iounmap(phba->slim_memmap_p);
6160 out:
6161         return error;
6162 }
6163
6164 /**
6165  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6166  * @phba: pointer to lpfc hba data structure.
6167  *
6168  * This routine is invoked to unset the PCI device memory space for device
6169  * with SLI-3 interface spec.
6170  **/
6171 static void
6172 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6173 {
6174         struct pci_dev *pdev;
6175
6176         /* Obtain PCI device reference */
6177         if (!phba->pcidev)
6178                 return;
6179         else
6180                 pdev = phba->pcidev;
6181
6182         /* Free coherent DMA memory allocated */
6183         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6184                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6185         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6186                           phba->slim2p.virt, phba->slim2p.phys);
6187
6188         /* I/O memory unmap */
6189         iounmap(phba->ctrl_regs_memmap_p);
6190         iounmap(phba->slim_memmap_p);
6191
6192         return;
6193 }
6194
6195 /**
6196  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6197  * @phba: pointer to lpfc hba data structure.
6198  *
6199  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6200  * done and check status.
6201  *
6202  * Return 0 if successful, otherwise -ENODEV.
6203  **/
6204 int
6205 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6206 {
6207         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6208         struct lpfc_register reg_data;
6209         int i, port_error = 0;
6210         uint32_t if_type;
6211
6212         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6213         memset(&reg_data, 0, sizeof(reg_data));
6214         if (!phba->sli4_hba.PSMPHRregaddr)
6215                 return -ENODEV;
6216
6217         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6218         for (i = 0; i < 3000; i++) {
6219                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6220                         &portsmphr_reg.word0) ||
6221                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6222                         /* Port has a fatal POST error, break out */
6223                         port_error = -ENODEV;
6224                         break;
6225                 }
6226                 if (LPFC_POST_STAGE_PORT_READY ==
6227                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6228                         break;
6229                 msleep(10);
6230         }
6231
6232         /*
6233          * If there was a port error during POST, then don't proceed with
6234          * other register reads as the data may not be valid.  Just exit.
6235          */
6236         if (port_error) {
6237                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6238                         "1408 Port Failed POST - portsmphr=0x%x, "
6239                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6240                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6241                         portsmphr_reg.word0,
6242                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6243                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6244                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6245                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6246                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6247                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6248                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6249                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6250         } else {
6251                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6252                                 "2534 Device Info: SLIFamily=0x%x, "
6253                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6254                                 "SLIHint_2=0x%x, FT=0x%x\n",
6255                                 bf_get(lpfc_sli_intf_sli_family,
6256                                        &phba->sli4_hba.sli_intf),
6257                                 bf_get(lpfc_sli_intf_slirev,
6258                                        &phba->sli4_hba.sli_intf),
6259                                 bf_get(lpfc_sli_intf_if_type,
6260                                        &phba->sli4_hba.sli_intf),
6261                                 bf_get(lpfc_sli_intf_sli_hint1,
6262                                        &phba->sli4_hba.sli_intf),
6263                                 bf_get(lpfc_sli_intf_sli_hint2,
6264                                        &phba->sli4_hba.sli_intf),
6265                                 bf_get(lpfc_sli_intf_func_type,
6266                                        &phba->sli4_hba.sli_intf));
6267                 /*
6268                  * Check for other Port errors during the initialization
6269                  * process.  Fail the load if the port did not come up
6270                  * correctly.
6271                  */
6272                 if_type = bf_get(lpfc_sli_intf_if_type,
6273                                  &phba->sli4_hba.sli_intf);
6274                 switch (if_type) {
6275                 case LPFC_SLI_INTF_IF_TYPE_0:
6276                         phba->sli4_hba.ue_mask_lo =
6277                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6278                         phba->sli4_hba.ue_mask_hi =
6279                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6280                         uerrlo_reg.word0 =
6281                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6282                         uerrhi_reg.word0 =
6283                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6284                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6285                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6286                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6287                                                 "1422 Unrecoverable Error "
6288                                                 "Detected during POST "
6289                                                 "uerr_lo_reg=0x%x, "
6290                                                 "uerr_hi_reg=0x%x, "
6291                                                 "ue_mask_lo_reg=0x%x, "
6292                                                 "ue_mask_hi_reg=0x%x\n",
6293                                                 uerrlo_reg.word0,
6294                                                 uerrhi_reg.word0,
6295                                                 phba->sli4_hba.ue_mask_lo,
6296                                                 phba->sli4_hba.ue_mask_hi);
6297                                 port_error = -ENODEV;
6298                         }
6299                         break;
6300                 case LPFC_SLI_INTF_IF_TYPE_2:
6301                         /* Final checks.  The port status should be clean. */
6302                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6303                                 &reg_data.word0) ||
6304                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6305                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6306                                 phba->work_status[0] =
6307                                         readl(phba->sli4_hba.u.if_type2.
6308                                               ERR1regaddr);
6309                                 phba->work_status[1] =
6310                                         readl(phba->sli4_hba.u.if_type2.
6311                                               ERR2regaddr);
6312                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6313                                         "2888 Unrecoverable port error "
6314                                         "following POST: port status reg "
6315                                         "0x%x, port_smphr reg 0x%x, "
6316                                         "error 1=0x%x, error 2=0x%x\n",
6317                                         reg_data.word0,
6318                                         portsmphr_reg.word0,
6319                                         phba->work_status[0],
6320                                         phba->work_status[1]);
6321                                 port_error = -ENODEV;
6322                         }
6323                         break;
6324                 case LPFC_SLI_INTF_IF_TYPE_1:
6325                 default:
6326                         break;
6327                 }
6328         }
6329         return port_error;
6330 }
6331
6332 /**
6333  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6334  * @phba: pointer to lpfc hba data structure.
6335  * @if_type:  The SLI4 interface type getting configured.
6336  *
6337  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6338  * memory map.
6339  **/
6340 static void
6341 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6342 {
6343         switch (if_type) {
6344         case LPFC_SLI_INTF_IF_TYPE_0:
6345                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6346                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6347                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6348                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6349                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6350                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6351                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6352                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6353                 phba->sli4_hba.SLIINTFregaddr =
6354                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6355                 break;
6356         case LPFC_SLI_INTF_IF_TYPE_2:
6357                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6358                         phba->sli4_hba.conf_regs_memmap_p +
6359                                                 LPFC_CTL_PORT_ER1_OFFSET;
6360                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6361                         phba->sli4_hba.conf_regs_memmap_p +
6362                                                 LPFC_CTL_PORT_ER2_OFFSET;
6363                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6364                         phba->sli4_hba.conf_regs_memmap_p +
6365                                                 LPFC_CTL_PORT_CTL_OFFSET;
6366                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6367                         phba->sli4_hba.conf_regs_memmap_p +
6368                                                 LPFC_CTL_PORT_STA_OFFSET;
6369                 phba->sli4_hba.SLIINTFregaddr =
6370                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6371                 phba->sli4_hba.PSMPHRregaddr =
6372                         phba->sli4_hba.conf_regs_memmap_p +
6373                                                 LPFC_CTL_PORT_SEM_OFFSET;
6374                 phba->sli4_hba.RQDBregaddr =
6375                         phba->sli4_hba.conf_regs_memmap_p +
6376                                                 LPFC_ULP0_RQ_DOORBELL;
6377                 phba->sli4_hba.WQDBregaddr =
6378                         phba->sli4_hba.conf_regs_memmap_p +
6379                                                 LPFC_ULP0_WQ_DOORBELL;
6380                 phba->sli4_hba.EQCQDBregaddr =
6381                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6382                 phba->sli4_hba.MQDBregaddr =
6383                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6384                 phba->sli4_hba.BMBXregaddr =
6385                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6386                 break;
6387         case LPFC_SLI_INTF_IF_TYPE_1:
6388         default:
6389                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6390                            "FATAL - unsupported SLI4 interface type - %d\n",
6391                            if_type);
6392                 break;
6393         }
6394 }
6395
6396 /**
6397  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6398  * @phba: pointer to lpfc hba data structure.
6399  *
6400  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6401  * memory map.
6402  **/
6403 static void
6404 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6405 {
6406         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6407                 LPFC_SLIPORT_IF0_SMPHR;
6408         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6409                 LPFC_HST_ISR0;
6410         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6411                 LPFC_HST_IMR0;
6412         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6413                 LPFC_HST_ISCR0;
6414 }
6415
6416 /**
6417  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6418  * @phba: pointer to lpfc hba data structure.
6419  * @vf: virtual function number
6420  *
6421  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6422  * based on the given viftual function number, @vf.
6423  *
6424  * Return 0 if successful, otherwise -ENODEV.
6425  **/
6426 static int
6427 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6428 {
6429         if (vf > LPFC_VIR_FUNC_MAX)
6430                 return -ENODEV;
6431
6432         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6433                                 vf * LPFC_VFR_PAGE_SIZE +
6434                                         LPFC_ULP0_RQ_DOORBELL);
6435         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6436                                 vf * LPFC_VFR_PAGE_SIZE +
6437                                         LPFC_ULP0_WQ_DOORBELL);
6438         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6439                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6440         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6441                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6442         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6443                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6444         return 0;
6445 }
6446
6447 /**
6448  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6449  * @phba: pointer to lpfc hba data structure.
6450  *
6451  * This routine is invoked to create the bootstrap mailbox
6452  * region consistent with the SLI-4 interface spec.  This
6453  * routine allocates all memory necessary to communicate
6454  * mailbox commands to the port and sets up all alignment
6455  * needs.  No locks are expected to be held when calling
6456  * this routine.
6457  *
6458  * Return codes
6459  *      0 - successful
6460  *      -ENOMEM - could not allocated memory.
6461  **/
6462 static int
6463 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6464 {
6465         uint32_t bmbx_size;
6466         struct lpfc_dmabuf *dmabuf;
6467         struct dma_address *dma_address;
6468         uint32_t pa_addr;
6469         uint64_t phys_addr;
6470
6471         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6472         if (!dmabuf)
6473                 return -ENOMEM;
6474
6475         /*
6476          * The bootstrap mailbox region is comprised of 2 parts
6477          * plus an alignment restriction of 16 bytes.
6478          */
6479         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6480         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6481                                           bmbx_size,
6482                                           &dmabuf->phys,
6483                                           GFP_KERNEL);
6484         if (!dmabuf->virt) {
6485                 kfree(dmabuf);
6486                 return -ENOMEM;
6487         }
6488         memset(dmabuf->virt, 0, bmbx_size);
6489
6490         /*
6491          * Initialize the bootstrap mailbox pointers now so that the register
6492          * operations are simple later.  The mailbox dma address is required
6493          * to be 16-byte aligned.  Also align the virtual memory as each
6494          * maibox is copied into the bmbx mailbox region before issuing the
6495          * command to the port.
6496          */
6497         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6498         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6499
6500         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6501                                               LPFC_ALIGN_16_BYTE);
6502         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6503                                               LPFC_ALIGN_16_BYTE);
6504
6505         /*
6506          * Set the high and low physical addresses now.  The SLI4 alignment
6507          * requirement is 16 bytes and the mailbox is posted to the port
6508          * as two 30-bit addresses.  The other data is a bit marking whether
6509          * the 30-bit address is the high or low address.
6510          * Upcast bmbx aphys to 64bits so shift instruction compiles
6511          * clean on 32 bit machines.
6512          */
6513         dma_address = &phba->sli4_hba.bmbx.dma_address;
6514         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6515         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6516         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6517                                            LPFC_BMBX_BIT1_ADDR_HI);
6518
6519         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6520         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6521                                            LPFC_BMBX_BIT1_ADDR_LO);
6522         return 0;
6523 }
6524
6525 /**
6526  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6527  * @phba: pointer to lpfc hba data structure.
6528  *
6529  * This routine is invoked to teardown the bootstrap mailbox
6530  * region and release all host resources. This routine requires
6531  * the caller to ensure all mailbox commands recovered, no
6532  * additional mailbox comands are sent, and interrupts are disabled
6533  * before calling this routine.
6534  *
6535  **/
6536 static void
6537 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6538 {
6539         dma_free_coherent(&phba->pcidev->dev,
6540                           phba->sli4_hba.bmbx.bmbx_size,
6541                           phba->sli4_hba.bmbx.dmabuf->virt,
6542                           phba->sli4_hba.bmbx.dmabuf->phys);
6543
6544         kfree(phba->sli4_hba.bmbx.dmabuf);
6545         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6546 }
6547
6548 /**
6549  * lpfc_sli4_read_config - Get the config parameters.
6550  * @phba: pointer to lpfc hba data structure.
6551  *
6552  * This routine is invoked to read the configuration parameters from the HBA.
6553  * The configuration parameters are used to set the base and maximum values
6554  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6555  * allocation for the port.
6556  *
6557  * Return codes
6558  *      0 - successful
6559  *      -ENOMEM - No available memory
6560  *      -EIO - The mailbox failed to complete successfully.
6561  **/
6562 int
6563 lpfc_sli4_read_config(struct lpfc_hba *phba)
6564 {
6565         LPFC_MBOXQ_t *pmb;
6566         struct lpfc_mbx_read_config *rd_config;
6567         union  lpfc_sli4_cfg_shdr *shdr;
6568         uint32_t shdr_status, shdr_add_status;
6569         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6570         struct lpfc_rsrc_desc_fcfcoe *desc;
6571         char *pdesc_0;
6572         uint32_t desc_count;
6573         int length, i, rc = 0, rc2;
6574
6575         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6576         if (!pmb) {
6577                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6578                                 "2011 Unable to allocate memory for issuing "
6579                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6580                 return -ENOMEM;
6581         }
6582
6583         lpfc_read_config(phba, pmb);
6584
6585         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6586         if (rc != MBX_SUCCESS) {
6587                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6588                         "2012 Mailbox failed , mbxCmd x%x "
6589                         "READ_CONFIG, mbxStatus x%x\n",
6590                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6591                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6592                 rc = -EIO;
6593         } else {
6594                 rd_config = &pmb->u.mqe.un.rd_config;
6595                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6596                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6597                         phba->sli4_hba.lnk_info.lnk_tp =
6598                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6599                         phba->sli4_hba.lnk_info.lnk_no =
6600                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6601                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6602                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6603                                         phba->sli4_hba.lnk_info.lnk_tp,
6604                                         phba->sli4_hba.lnk_info.lnk_no);
6605                 } else
6606                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6607                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6608                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6609                 phba->sli4_hba.extents_in_use =
6610                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6611                 phba->sli4_hba.max_cfg_param.max_xri =
6612                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6613                 phba->sli4_hba.max_cfg_param.xri_base =
6614                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6615                 phba->sli4_hba.max_cfg_param.max_vpi =
6616                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6617                 phba->sli4_hba.max_cfg_param.vpi_base =
6618                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6619                 phba->sli4_hba.max_cfg_param.max_rpi =
6620                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6621                 phba->sli4_hba.max_cfg_param.rpi_base =
6622                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6623                 phba->sli4_hba.max_cfg_param.max_vfi =
6624                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6625                 phba->sli4_hba.max_cfg_param.vfi_base =
6626                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6627                 phba->sli4_hba.max_cfg_param.max_fcfi =
6628                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6629                 phba->sli4_hba.max_cfg_param.max_eq =
6630                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6631                 phba->sli4_hba.max_cfg_param.max_rq =
6632                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6633                 phba->sli4_hba.max_cfg_param.max_wq =
6634                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6635                 phba->sli4_hba.max_cfg_param.max_cq =
6636                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6637                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6638                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6639                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6640                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6641                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6642                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6643                 phba->max_vports = phba->max_vpi;
6644                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6645                                 "2003 cfg params Extents? %d "
6646                                 "XRI(B:%d M:%d), "
6647                                 "VPI(B:%d M:%d) "
6648                                 "VFI(B:%d M:%d) "
6649                                 "RPI(B:%d M:%d) "
6650                                 "FCFI(Count:%d)\n",
6651                                 phba->sli4_hba.extents_in_use,
6652                                 phba->sli4_hba.max_cfg_param.xri_base,
6653                                 phba->sli4_hba.max_cfg_param.max_xri,
6654                                 phba->sli4_hba.max_cfg_param.vpi_base,
6655                                 phba->sli4_hba.max_cfg_param.max_vpi,
6656                                 phba->sli4_hba.max_cfg_param.vfi_base,
6657                                 phba->sli4_hba.max_cfg_param.max_vfi,
6658                                 phba->sli4_hba.max_cfg_param.rpi_base,
6659                                 phba->sli4_hba.max_cfg_param.max_rpi,
6660                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6661         }
6662
6663         if (rc)
6664                 goto read_cfg_out;
6665
6666         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6667         if (phba->cfg_hba_queue_depth >
6668                 (phba->sli4_hba.max_cfg_param.max_xri -
6669                         lpfc_sli4_get_els_iocb_cnt(phba)))
6670                 phba->cfg_hba_queue_depth =
6671                         phba->sli4_hba.max_cfg_param.max_xri -
6672                                 lpfc_sli4_get_els_iocb_cnt(phba);
6673
6674         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6675             LPFC_SLI_INTF_IF_TYPE_2)
6676                 goto read_cfg_out;
6677
6678         /* get the pf# and vf# for SLI4 if_type 2 port */
6679         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6680                   sizeof(struct lpfc_sli4_cfg_mhdr));
6681         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6682                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6683                          length, LPFC_SLI4_MBX_EMBED);
6684
6685         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6686         shdr = (union lpfc_sli4_cfg_shdr *)
6687                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6688         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6689         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6690         if (rc2 || shdr_status || shdr_add_status) {
6691                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6692                                 "3026 Mailbox failed , mbxCmd x%x "
6693                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6694                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6695                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6696                 goto read_cfg_out;
6697         }
6698
6699         /* search for fc_fcoe resrouce descriptor */
6700         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6701         desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6702
6703         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6704         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6705         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6706         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6707                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6708         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6709                 goto read_cfg_out;
6710
6711         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6712                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6713                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6714                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6715                         phba->sli4_hba.iov.pf_number =
6716                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6717                         phba->sli4_hba.iov.vf_number =
6718                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6719                         break;
6720                 }
6721         }
6722
6723         if (i < LPFC_RSRC_DESC_MAX_NUM)
6724                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6725                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6726                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6727                                 phba->sli4_hba.iov.vf_number);
6728         else
6729                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6730                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6731                                 "Resrouce Descriptor:x%x\n",
6732                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6733
6734 read_cfg_out:
6735         mempool_free(pmb, phba->mbox_mem_pool);
6736         return rc;
6737 }
6738
6739 /**
6740  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6741  * @phba: pointer to lpfc hba data structure.
6742  *
6743  * This routine is invoked to setup the port-side endian order when
6744  * the port if_type is 0.  This routine has no function for other
6745  * if_types.
6746  *
6747  * Return codes
6748  *      0 - successful
6749  *      -ENOMEM - No available memory
6750  *      -EIO - The mailbox failed to complete successfully.
6751  **/
6752 static int
6753 lpfc_setup_endian_order(struct lpfc_hba *phba)
6754 {
6755         LPFC_MBOXQ_t *mboxq;
6756         uint32_t if_type, rc = 0;
6757         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6758                                       HOST_ENDIAN_HIGH_WORD1};
6759
6760         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6761         switch (if_type) {
6762         case LPFC_SLI_INTF_IF_TYPE_0:
6763                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6764                                                        GFP_KERNEL);
6765                 if (!mboxq) {
6766                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6767                                         "0492 Unable to allocate memory for "
6768                                         "issuing SLI_CONFIG_SPECIAL mailbox "
6769                                         "command\n");
6770                         return -ENOMEM;
6771                 }
6772
6773                 /*
6774                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6775                  * two words to contain special data values and no other data.
6776                  */
6777                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6778                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6779                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6780                 if (rc != MBX_SUCCESS) {
6781                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6782                                         "0493 SLI_CONFIG_SPECIAL mailbox "
6783                                         "failed with status x%x\n",
6784                                         rc);
6785                         rc = -EIO;
6786                 }
6787                 mempool_free(mboxq, phba->mbox_mem_pool);
6788                 break;
6789         case LPFC_SLI_INTF_IF_TYPE_2:
6790         case LPFC_SLI_INTF_IF_TYPE_1:
6791         default:
6792                 break;
6793         }
6794         return rc;
6795 }
6796
6797 /**
6798  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6799  * @phba: pointer to lpfc hba data structure.
6800  *
6801  * This routine is invoked to check the user settable queue counts for EQs and
6802  * CQs. after this routine is called the counts will be set to valid values that
6803  * adhere to the constraints of the system's interrupt vectors and the port's
6804  * queue resources.
6805  *
6806  * Return codes
6807  *      0 - successful
6808  *      -ENOMEM - No available memory
6809  **/
6810 static int
6811 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6812 {
6813         int cfg_fcp_io_channel;
6814         uint32_t cpu;
6815         uint32_t i = 0;
6816
6817         /*
6818          * Sanity check for configured queue parameters against the run-time
6819          * device parameters
6820          */
6821
6822         /* Sanity check on HBA EQ parameters */
6823         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
6824
6825         /* It doesn't make sense to have more io channels then online CPUs */
6826         for_each_present_cpu(cpu) {
6827                 if (cpu_online(cpu))
6828                         i++;
6829         }
6830         phba->sli4_hba.num_online_cpu = i;
6831         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
6832
6833         if (i < cfg_fcp_io_channel) {
6834                 lpfc_printf_log(phba,
6835                                 KERN_ERR, LOG_INIT,
6836                                 "3188 Reducing IO channels to match number of "
6837                                 "online CPUs: from %d to %d\n",
6838                                 cfg_fcp_io_channel, i);
6839                 cfg_fcp_io_channel = i;
6840         }
6841
6842         if (cfg_fcp_io_channel >
6843             phba->sli4_hba.max_cfg_param.max_eq) {
6844                 if (phba->sli4_hba.max_cfg_param.max_eq <
6845                     LPFC_FCP_IO_CHAN_MIN) {
6846                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6847                                         "2574 Not enough EQs (%d) from the "
6848                                         "pci function for supporting FCP "
6849                                         "EQs (%d)\n",
6850                                         phba->sli4_hba.max_cfg_param.max_eq,
6851                                         phba->cfg_fcp_io_channel);
6852                         goto out_error;
6853                 }
6854                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6855                                 "2575 Reducing IO channels to match number of "
6856                                 "available EQs: from %d to %d\n",
6857                                 cfg_fcp_io_channel,
6858                                 phba->sli4_hba.max_cfg_param.max_eq);
6859                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
6860         }
6861
6862         /* Eventually cfg_fcp_eq_count / cfg_fcp_wq_count will be depricated */
6863
6864         /* The actual number of FCP event queues adopted */
6865         phba->cfg_fcp_eq_count = cfg_fcp_io_channel;
6866         phba->cfg_fcp_wq_count = cfg_fcp_io_channel;
6867         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
6868
6869         /* Get EQ depth from module parameter, fake the default for now */
6870         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6871         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6872
6873         /* Get CQ depth from module parameter, fake the default for now */
6874         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6875         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6876
6877         return 0;
6878 out_error:
6879         return -ENOMEM;
6880 }
6881
6882 /**
6883  * lpfc_sli4_queue_create - Create all the SLI4 queues
6884  * @phba: pointer to lpfc hba data structure.
6885  *
6886  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6887  * operation. For each SLI4 queue type, the parameters such as queue entry
6888  * count (queue depth) shall be taken from the module parameter. For now,
6889  * we just use some constant number as place holder.
6890  *
6891  * Return codes
6892  *      0 - successful
6893  *      -ENOMEM - No availble memory
6894  *      -EIO - The mailbox failed to complete successfully.
6895  **/
6896 int
6897 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6898 {
6899         struct lpfc_queue *qdesc;
6900         int idx;
6901
6902         /*
6903          * Create HBA Record arrays.
6904          */
6905         if (!phba->cfg_fcp_io_channel)
6906                 return -ERANGE;
6907
6908         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6909         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6910         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6911         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6912         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6913         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6914
6915         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
6916                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6917         if (!phba->sli4_hba.hba_eq) {
6918                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6919                         "2576 Failed allocate memory for "
6920                         "fast-path EQ record array\n");
6921                 goto out_error;
6922         }
6923
6924         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6925                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6926         if (!phba->sli4_hba.fcp_cq) {
6927                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6928                                 "2577 Failed allocate memory for fast-path "
6929                                 "CQ record array\n");
6930                 goto out_error;
6931         }
6932
6933         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6934                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
6935         if (!phba->sli4_hba.fcp_wq) {
6936                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6937                                 "2578 Failed allocate memory for fast-path "
6938                                 "WQ record array\n");
6939                 goto out_error;
6940         }
6941
6942         /*
6943          * Since the first EQ can have multiple CQs associated with it,
6944          * this array is used to quickly see if we have a FCP fast-path
6945          * CQ match.
6946          */
6947         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
6948                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
6949         if (!phba->sli4_hba.fcp_cq_map) {
6950                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6951                                 "2545 Failed allocate memory for fast-path "
6952                                 "CQ map\n");
6953                 goto out_error;
6954         }
6955
6956         /*
6957          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
6958          * how many EQs to create.
6959          */
6960         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
6961
6962                 /* Create EQs */
6963                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6964                                               phba->sli4_hba.eq_ecount);
6965                 if (!qdesc) {
6966                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6967                                         "0497 Failed allocate EQ (%d)\n", idx);
6968                         goto out_error;
6969                 }
6970                 phba->sli4_hba.hba_eq[idx] = qdesc;
6971
6972                 /* Create Fast Path FCP CQs */
6973                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6974                                               phba->sli4_hba.cq_ecount);
6975                 if (!qdesc) {
6976                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6977                                         "0499 Failed allocate fast-path FCP "
6978                                         "CQ (%d)\n", idx);
6979                         goto out_error;
6980                 }
6981                 phba->sli4_hba.fcp_cq[idx] = qdesc;
6982
6983                 /* Create Fast Path FCP WQs */
6984                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6985                                               phba->sli4_hba.wq_ecount);
6986                 if (!qdesc) {
6987                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6988                                         "0503 Failed allocate fast-path FCP "
6989                                         "WQ (%d)\n", idx);
6990                         goto out_error;
6991                 }
6992                 phba->sli4_hba.fcp_wq[idx] = qdesc;
6993         }
6994
6995
6996         /*
6997          * Create Slow Path Completion Queues (CQs)
6998          */
6999
7000         /* Create slow-path Mailbox Command Complete Queue */
7001         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7002                                       phba->sli4_hba.cq_ecount);
7003         if (!qdesc) {
7004                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7005                                 "0500 Failed allocate slow-path mailbox CQ\n");
7006                 goto out_error;
7007         }
7008         phba->sli4_hba.mbx_cq = qdesc;
7009
7010         /* Create slow-path ELS Complete Queue */
7011         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7012                                       phba->sli4_hba.cq_ecount);
7013         if (!qdesc) {
7014                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7015                                 "0501 Failed allocate slow-path ELS CQ\n");
7016                 goto out_error;
7017         }
7018         phba->sli4_hba.els_cq = qdesc;
7019
7020
7021         /*
7022          * Create Slow Path Work Queues (WQs)
7023          */
7024
7025         /* Create Mailbox Command Queue */
7026
7027         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7028                                       phba->sli4_hba.mq_ecount);
7029         if (!qdesc) {
7030                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7031                                 "0505 Failed allocate slow-path MQ\n");
7032                 goto out_error;
7033         }
7034         phba->sli4_hba.mbx_wq = qdesc;
7035
7036         /*
7037          * Create ELS Work Queues
7038          */
7039
7040         /* Create slow-path ELS Work Queue */
7041         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7042                                       phba->sli4_hba.wq_ecount);
7043         if (!qdesc) {
7044                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7045                                 "0504 Failed allocate slow-path ELS WQ\n");
7046                 goto out_error;
7047         }
7048         phba->sli4_hba.els_wq = qdesc;
7049
7050         /*
7051          * Create Receive Queue (RQ)
7052          */
7053
7054         /* Create Receive Queue for header */
7055         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7056                                       phba->sli4_hba.rq_ecount);
7057         if (!qdesc) {
7058                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7059                                 "0506 Failed allocate receive HRQ\n");
7060                 goto out_error;
7061         }
7062         phba->sli4_hba.hdr_rq = qdesc;
7063
7064         /* Create Receive Queue for data */
7065         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7066                                       phba->sli4_hba.rq_ecount);
7067         if (!qdesc) {
7068                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7069                                 "0507 Failed allocate receive DRQ\n");
7070                 goto out_error;
7071         }
7072         phba->sli4_hba.dat_rq = qdesc;
7073
7074         return 0;
7075
7076 out_error:
7077         lpfc_sli4_queue_destroy(phba);
7078         return -ENOMEM;
7079 }
7080
7081 /**
7082  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7083  * @phba: pointer to lpfc hba data structure.
7084  *
7085  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7086  * operation.
7087  *
7088  * Return codes
7089  *      0 - successful
7090  *      -ENOMEM - No available memory
7091  *      -EIO - The mailbox failed to complete successfully.
7092  **/
7093 void
7094 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7095 {
7096         int idx;
7097
7098         if (phba->sli4_hba.hba_eq != NULL) {
7099                 /* Release HBA event queue */
7100                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7101                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7102                                 lpfc_sli4_queue_free(
7103                                         phba->sli4_hba.hba_eq[idx]);
7104                                 phba->sli4_hba.hba_eq[idx] = NULL;
7105                         }
7106                 }
7107                 kfree(phba->sli4_hba.hba_eq);
7108                 phba->sli4_hba.hba_eq = NULL;
7109         }
7110
7111         if (phba->sli4_hba.fcp_cq != NULL) {
7112                 /* Release FCP completion queue */
7113                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7114                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7115                                 lpfc_sli4_queue_free(
7116                                         phba->sli4_hba.fcp_cq[idx]);
7117                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7118                         }
7119                 }
7120                 kfree(phba->sli4_hba.fcp_cq);
7121                 phba->sli4_hba.fcp_cq = NULL;
7122         }
7123
7124         if (phba->sli4_hba.fcp_wq != NULL) {
7125                 /* Release FCP work queue */
7126                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7127                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7128                                 lpfc_sli4_queue_free(
7129                                         phba->sli4_hba.fcp_wq[idx]);
7130                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7131                         }
7132                 }
7133                 kfree(phba->sli4_hba.fcp_wq);
7134                 phba->sli4_hba.fcp_wq = NULL;
7135         }
7136
7137         if (phba->pci_bar0_memmap_p) {
7138                 iounmap(phba->pci_bar0_memmap_p);
7139                 phba->pci_bar0_memmap_p = NULL;
7140         }
7141         if (phba->pci_bar2_memmap_p) {
7142                 iounmap(phba->pci_bar2_memmap_p);
7143                 phba->pci_bar2_memmap_p = NULL;
7144         }
7145         if (phba->pci_bar4_memmap_p) {
7146                 iounmap(phba->pci_bar4_memmap_p);
7147                 phba->pci_bar4_memmap_p = NULL;
7148         }
7149
7150         /* Release FCP CQ mapping array */
7151         if (phba->sli4_hba.fcp_cq_map != NULL) {
7152                 kfree(phba->sli4_hba.fcp_cq_map);
7153                 phba->sli4_hba.fcp_cq_map = NULL;
7154         }
7155
7156         /* Release mailbox command work queue */
7157         if (phba->sli4_hba.mbx_wq != NULL) {
7158                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7159                 phba->sli4_hba.mbx_wq = NULL;
7160         }
7161
7162         /* Release ELS work queue */
7163         if (phba->sli4_hba.els_wq != NULL) {
7164                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7165                 phba->sli4_hba.els_wq = NULL;
7166         }
7167
7168         /* Release unsolicited receive queue */
7169         if (phba->sli4_hba.hdr_rq != NULL) {
7170                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7171                 phba->sli4_hba.hdr_rq = NULL;
7172         }
7173         if (phba->sli4_hba.dat_rq != NULL) {
7174                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7175                 phba->sli4_hba.dat_rq = NULL;
7176         }
7177
7178         /* Release ELS complete queue */
7179         if (phba->sli4_hba.els_cq != NULL) {
7180                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7181                 phba->sli4_hba.els_cq = NULL;
7182         }
7183
7184         /* Release mailbox command complete queue */
7185         if (phba->sli4_hba.mbx_cq != NULL) {
7186                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7187                 phba->sli4_hba.mbx_cq = NULL;
7188         }
7189
7190         return;
7191 }
7192
7193 /**
7194  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7195  * @phba: pointer to lpfc hba data structure.
7196  *
7197  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7198  * operation.
7199  *
7200  * Return codes
7201  *      0 - successful
7202  *      -ENOMEM - No available memory
7203  *      -EIO - The mailbox failed to complete successfully.
7204  **/
7205 int
7206 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7207 {
7208         struct lpfc_sli *psli = &phba->sli;
7209         struct lpfc_sli_ring *pring;
7210         int rc = -ENOMEM;
7211         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7212         int fcp_cq_index = 0;
7213         uint32_t shdr_status, shdr_add_status;
7214         union lpfc_sli4_cfg_shdr *shdr;
7215         LPFC_MBOXQ_t *mboxq;
7216         uint32_t length;
7217
7218         /* Check for dual-ULP support */
7219         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7220         if (!mboxq) {
7221                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7222                                 "3249 Unable to allocate memory for "
7223                                 "QUERY_FW_CFG mailbox command\n");
7224                 return -ENOMEM;
7225         }
7226         length = (sizeof(struct lpfc_mbx_query_fw_config) -
7227                   sizeof(struct lpfc_sli4_cfg_mhdr));
7228         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7229                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7230                          length, LPFC_SLI4_MBX_EMBED);
7231
7232         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7233
7234         shdr = (union lpfc_sli4_cfg_shdr *)
7235                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7236         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7237         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7238         if (shdr_status || shdr_add_status || rc) {
7239                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7240                                 "3250 QUERY_FW_CFG mailbox failed with status "
7241                                 "x%x add_status x%x, mbx status x%x\n",
7242                                 shdr_status, shdr_add_status, rc);
7243                 if (rc != MBX_TIMEOUT)
7244                         mempool_free(mboxq, phba->mbox_mem_pool);
7245                 rc = -ENXIO;
7246                 goto out_error;
7247         }
7248
7249         phba->sli4_hba.fw_func_mode =
7250                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7251         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7252         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7253         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7254                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7255                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7256                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7257
7258         if (rc != MBX_TIMEOUT)
7259                 mempool_free(mboxq, phba->mbox_mem_pool);
7260
7261         /*
7262          * Set up HBA Event Queues (EQs)
7263          */
7264
7265         /* Set up HBA event queue */
7266         if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7267                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7268                                 "3147 Fast-path EQs not allocated\n");
7269                 rc = -ENOMEM;
7270                 goto out_error;
7271         }
7272         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7273                 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7274                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7275                                         "0522 Fast-path EQ (%d) not "
7276                                         "allocated\n", fcp_eqidx);
7277                         rc = -ENOMEM;
7278                         goto out_destroy_hba_eq;
7279                 }
7280                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7281                          (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7282                 if (rc) {
7283                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7284                                         "0523 Failed setup of fast-path EQ "
7285                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
7286                         goto out_destroy_hba_eq;
7287                 }
7288                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7289                                 "2584 HBA EQ setup: "
7290                                 "queue[%d]-id=%d\n", fcp_eqidx,
7291                                 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7292         }
7293
7294         /* Set up fast-path FCP Response Complete Queue */
7295         if (!phba->sli4_hba.fcp_cq) {
7296                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7297                                 "3148 Fast-path FCP CQ array not "
7298                                 "allocated\n");
7299                 rc = -ENOMEM;
7300                 goto out_destroy_hba_eq;
7301         }
7302
7303         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7304                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7305                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7306                                         "0526 Fast-path FCP CQ (%d) not "
7307                                         "allocated\n", fcp_cqidx);
7308                         rc = -ENOMEM;
7309                         goto out_destroy_fcp_cq;
7310                 }
7311                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7312                         phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7313                 if (rc) {
7314                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7315                                         "0527 Failed setup of fast-path FCP "
7316                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
7317                         goto out_destroy_fcp_cq;
7318                 }
7319
7320                 /* Setup fcp_cq_map for fast lookup */
7321                 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7322                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7323
7324                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7325                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
7326                                 "parent seq[%d]-id=%d\n",
7327                                 fcp_cqidx,
7328                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7329                                 fcp_cqidx,
7330                                 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7331         }
7332
7333         /* Set up fast-path FCP Work Queue */
7334         if (!phba->sli4_hba.fcp_wq) {
7335                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7336                                 "3149 Fast-path FCP WQ array not "
7337                                 "allocated\n");
7338                 rc = -ENOMEM;
7339                 goto out_destroy_fcp_cq;
7340         }
7341
7342         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7343                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7344                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7345                                         "0534 Fast-path FCP WQ (%d) not "
7346                                         "allocated\n", fcp_wqidx);
7347                         rc = -ENOMEM;
7348                         goto out_destroy_fcp_wq;
7349                 }
7350                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7351                                     phba->sli4_hba.fcp_cq[fcp_wqidx],
7352                                     LPFC_FCP);
7353                 if (rc) {
7354                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7355                                         "0535 Failed setup of fast-path FCP "
7356                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
7357                         goto out_destroy_fcp_wq;
7358                 }
7359
7360                 /* Bind this WQ to the next FCP ring */
7361                 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7362                 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7363                 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7364
7365                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7366                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7367                                 "parent cq[%d]-id=%d\n",
7368                                 fcp_wqidx,
7369                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7370                                 fcp_cq_index,
7371                                 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7372         }
7373         /*
7374          * Set up Complete Queues (CQs)
7375          */
7376
7377         /* Set up slow-path MBOX Complete Queue as the first CQ */
7378         if (!phba->sli4_hba.mbx_cq) {
7379                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7380                                 "0528 Mailbox CQ not allocated\n");
7381                 rc = -ENOMEM;
7382                 goto out_destroy_fcp_wq;
7383         }
7384         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7385                         phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7386         if (rc) {
7387                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7388                                 "0529 Failed setup of slow-path mailbox CQ: "
7389                                 "rc = 0x%x\n", rc);
7390                 goto out_destroy_fcp_wq;
7391         }
7392         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7393                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7394                         phba->sli4_hba.mbx_cq->queue_id,
7395                         phba->sli4_hba.hba_eq[0]->queue_id);
7396
7397         /* Set up slow-path ELS Complete Queue */
7398         if (!phba->sli4_hba.els_cq) {
7399                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7400                                 "0530 ELS CQ not allocated\n");
7401                 rc = -ENOMEM;
7402                 goto out_destroy_mbx_cq;
7403         }
7404         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7405                         phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7406         if (rc) {
7407                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7408                                 "0531 Failed setup of slow-path ELS CQ: "
7409                                 "rc = 0x%x\n", rc);
7410                 goto out_destroy_mbx_cq;
7411         }
7412         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7413                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7414                         phba->sli4_hba.els_cq->queue_id,
7415                         phba->sli4_hba.hba_eq[0]->queue_id);
7416
7417         /*
7418          * Set up all the Work Queues (WQs)
7419          */
7420
7421         /* Set up Mailbox Command Queue */
7422         if (!phba->sli4_hba.mbx_wq) {
7423                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7424                                 "0538 Slow-path MQ not allocated\n");
7425                 rc = -ENOMEM;
7426                 goto out_destroy_els_cq;
7427         }
7428         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7429                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7430         if (rc) {
7431                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7432                                 "0539 Failed setup of slow-path MQ: "
7433                                 "rc = 0x%x\n", rc);
7434                 goto out_destroy_els_cq;
7435         }
7436         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7437                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7438                         phba->sli4_hba.mbx_wq->queue_id,
7439                         phba->sli4_hba.mbx_cq->queue_id);
7440
7441         /* Set up slow-path ELS Work Queue */
7442         if (!phba->sli4_hba.els_wq) {
7443                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7444                                 "0536 Slow-path ELS WQ not allocated\n");
7445                 rc = -ENOMEM;
7446                 goto out_destroy_mbx_wq;
7447         }
7448         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7449                             phba->sli4_hba.els_cq, LPFC_ELS);
7450         if (rc) {
7451                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7452                                 "0537 Failed setup of slow-path ELS WQ: "
7453                                 "rc = 0x%x\n", rc);
7454                 goto out_destroy_mbx_wq;
7455         }
7456
7457         /* Bind this WQ to the ELS ring */
7458         pring = &psli->ring[LPFC_ELS_RING];
7459         pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7460         phba->sli4_hba.els_cq->pring = pring;
7461
7462         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7463                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7464                         phba->sli4_hba.els_wq->queue_id,
7465                         phba->sli4_hba.els_cq->queue_id);
7466
7467         /*
7468          * Create Receive Queue (RQ)
7469          */
7470         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7471                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7472                                 "0540 Receive Queue not allocated\n");
7473                 rc = -ENOMEM;
7474                 goto out_destroy_els_wq;
7475         }
7476
7477         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7478         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7479
7480         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7481                             phba->sli4_hba.els_cq, LPFC_USOL);
7482         if (rc) {
7483                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7484                                 "0541 Failed setup of Receive Queue: "
7485                                 "rc = 0x%x\n", rc);
7486                 goto out_destroy_fcp_wq;
7487         }
7488
7489         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7490                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7491                         "parent cq-id=%d\n",
7492                         phba->sli4_hba.hdr_rq->queue_id,
7493                         phba->sli4_hba.dat_rq->queue_id,
7494                         phba->sli4_hba.els_cq->queue_id);
7495         return 0;
7496
7497 out_destroy_els_wq:
7498         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7499 out_destroy_mbx_wq:
7500         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7501 out_destroy_els_cq:
7502         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7503 out_destroy_mbx_cq:
7504         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7505 out_destroy_fcp_wq:
7506         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7507                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7508 out_destroy_fcp_cq:
7509         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7510                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7511 out_destroy_hba_eq:
7512         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7513                 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7514 out_error:
7515         return rc;
7516 }
7517
7518 /**
7519  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7520  * @phba: pointer to lpfc hba data structure.
7521  *
7522  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7523  * operation.
7524  *
7525  * Return codes
7526  *      0 - successful
7527  *      -ENOMEM - No available memory
7528  *      -EIO - The mailbox failed to complete successfully.
7529  **/
7530 void
7531 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7532 {
7533         int fcp_qidx;
7534
7535         /* Unset mailbox command work queue */
7536         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7537         /* Unset ELS work queue */
7538         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7539         /* Unset unsolicited receive queue */
7540         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7541         /* Unset FCP work queue */
7542         if (phba->sli4_hba.fcp_wq) {
7543                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7544                      fcp_qidx++)
7545                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7546         }
7547         /* Unset mailbox command complete queue */
7548         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7549         /* Unset ELS complete queue */
7550         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7551         /* Unset FCP response complete queue */
7552         if (phba->sli4_hba.fcp_cq) {
7553                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7554                      fcp_qidx++)
7555                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7556         }
7557         /* Unset fast-path event queue */
7558         if (phba->sli4_hba.hba_eq) {
7559                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7560                      fcp_qidx++)
7561                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7562         }
7563 }
7564
7565 /**
7566  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7567  * @phba: pointer to lpfc hba data structure.
7568  *
7569  * This routine is invoked to allocate and set up a pool of completion queue
7570  * events. The body of the completion queue event is a completion queue entry
7571  * CQE. For now, this pool is used for the interrupt service routine to queue
7572  * the following HBA completion queue events for the worker thread to process:
7573  *   - Mailbox asynchronous events
7574  *   - Receive queue completion unsolicited events
7575  * Later, this can be used for all the slow-path events.
7576  *
7577  * Return codes
7578  *      0 - successful
7579  *      -ENOMEM - No available memory
7580  **/
7581 static int
7582 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7583 {
7584         struct lpfc_cq_event *cq_event;
7585         int i;
7586
7587         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7588                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7589                 if (!cq_event)
7590                         goto out_pool_create_fail;
7591                 list_add_tail(&cq_event->list,
7592                               &phba->sli4_hba.sp_cqe_event_pool);
7593         }
7594         return 0;
7595
7596 out_pool_create_fail:
7597         lpfc_sli4_cq_event_pool_destroy(phba);
7598         return -ENOMEM;
7599 }
7600
7601 /**
7602  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7603  * @phba: pointer to lpfc hba data structure.
7604  *
7605  * This routine is invoked to free the pool of completion queue events at
7606  * driver unload time. Note that, it is the responsibility of the driver
7607  * cleanup routine to free all the outstanding completion-queue events
7608  * allocated from this pool back into the pool before invoking this routine
7609  * to destroy the pool.
7610  **/
7611 static void
7612 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7613 {
7614         struct lpfc_cq_event *cq_event, *next_cq_event;
7615
7616         list_for_each_entry_safe(cq_event, next_cq_event,
7617                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7618                 list_del(&cq_event->list);
7619                 kfree(cq_event);
7620         }
7621 }
7622
7623 /**
7624  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7625  * @phba: pointer to lpfc hba data structure.
7626  *
7627  * This routine is the lock free version of the API invoked to allocate a
7628  * completion-queue event from the free pool.
7629  *
7630  * Return: Pointer to the newly allocated completion-queue event if successful
7631  *         NULL otherwise.
7632  **/
7633 struct lpfc_cq_event *
7634 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7635 {
7636         struct lpfc_cq_event *cq_event = NULL;
7637
7638         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7639                          struct lpfc_cq_event, list);
7640         return cq_event;
7641 }
7642
7643 /**
7644  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7645  * @phba: pointer to lpfc hba data structure.
7646  *
7647  * This routine is the lock version of the API invoked to allocate a
7648  * completion-queue event from the free pool.
7649  *
7650  * Return: Pointer to the newly allocated completion-queue event if successful
7651  *         NULL otherwise.
7652  **/
7653 struct lpfc_cq_event *
7654 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7655 {
7656         struct lpfc_cq_event *cq_event;
7657         unsigned long iflags;
7658
7659         spin_lock_irqsave(&phba->hbalock, iflags);
7660         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7661         spin_unlock_irqrestore(&phba->hbalock, iflags);
7662         return cq_event;
7663 }
7664
7665 /**
7666  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7667  * @phba: pointer to lpfc hba data structure.
7668  * @cq_event: pointer to the completion queue event to be freed.
7669  *
7670  * This routine is the lock free version of the API invoked to release a
7671  * completion-queue event back into the free pool.
7672  **/
7673 void
7674 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7675                              struct lpfc_cq_event *cq_event)
7676 {
7677         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7678 }
7679
7680 /**
7681  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7682  * @phba: pointer to lpfc hba data structure.
7683  * @cq_event: pointer to the completion queue event to be freed.
7684  *
7685  * This routine is the lock version of the API invoked to release a
7686  * completion-queue event back into the free pool.
7687  **/
7688 void
7689 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7690                            struct lpfc_cq_event *cq_event)
7691 {
7692         unsigned long iflags;
7693         spin_lock_irqsave(&phba->hbalock, iflags);
7694         __lpfc_sli4_cq_event_release(phba, cq_event);
7695         spin_unlock_irqrestore(&phba->hbalock, iflags);
7696 }
7697
7698 /**
7699  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7700  * @phba: pointer to lpfc hba data structure.
7701  *
7702  * This routine is to free all the pending completion-queue events to the
7703  * back into the free pool for device reset.
7704  **/
7705 static void
7706 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7707 {
7708         LIST_HEAD(cqelist);
7709         struct lpfc_cq_event *cqe;
7710         unsigned long iflags;
7711
7712         /* Retrieve all the pending WCQEs from pending WCQE lists */
7713         spin_lock_irqsave(&phba->hbalock, iflags);
7714         /* Pending FCP XRI abort events */
7715         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7716                          &cqelist);
7717         /* Pending ELS XRI abort events */
7718         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7719                          &cqelist);
7720         /* Pending asynnc events */
7721         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7722                          &cqelist);
7723         spin_unlock_irqrestore(&phba->hbalock, iflags);
7724
7725         while (!list_empty(&cqelist)) {
7726                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7727                 lpfc_sli4_cq_event_release(phba, cqe);
7728         }
7729 }
7730
7731 /**
7732  * lpfc_pci_function_reset - Reset pci function.
7733  * @phba: pointer to lpfc hba data structure.
7734  *
7735  * This routine is invoked to request a PCI function reset. It will destroys
7736  * all resources assigned to the PCI function which originates this request.
7737  *
7738  * Return codes
7739  *      0 - successful
7740  *      -ENOMEM - No available memory
7741  *      -EIO - The mailbox failed to complete successfully.
7742  **/
7743 int
7744 lpfc_pci_function_reset(struct lpfc_hba *phba)
7745 {
7746         LPFC_MBOXQ_t *mboxq;
7747         uint32_t rc = 0, if_type;
7748         uint32_t shdr_status, shdr_add_status;
7749         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7750         union lpfc_sli4_cfg_shdr *shdr;
7751         struct lpfc_register reg_data;
7752         uint16_t devid;
7753
7754         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7755         switch (if_type) {
7756         case LPFC_SLI_INTF_IF_TYPE_0:
7757                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7758                                                        GFP_KERNEL);
7759                 if (!mboxq) {
7760                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7761                                         "0494 Unable to allocate memory for "
7762                                         "issuing SLI_FUNCTION_RESET mailbox "
7763                                         "command\n");
7764                         return -ENOMEM;
7765                 }
7766
7767                 /* Setup PCI function reset mailbox-ioctl command */
7768                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7769                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7770                                  LPFC_SLI4_MBX_EMBED);
7771                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7772                 shdr = (union lpfc_sli4_cfg_shdr *)
7773                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7774                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7775                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7776                                          &shdr->response);
7777                 if (rc != MBX_TIMEOUT)
7778                         mempool_free(mboxq, phba->mbox_mem_pool);
7779                 if (shdr_status || shdr_add_status || rc) {
7780                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7781                                         "0495 SLI_FUNCTION_RESET mailbox "
7782                                         "failed with status x%x add_status x%x,"
7783                                         " mbx status x%x\n",
7784                                         shdr_status, shdr_add_status, rc);
7785                         rc = -ENXIO;
7786                 }
7787                 break;
7788         case LPFC_SLI_INTF_IF_TYPE_2:
7789                 for (num_resets = 0;
7790                      num_resets < MAX_IF_TYPE_2_RESETS;
7791                      num_resets++) {
7792                         reg_data.word0 = 0;
7793                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
7794                                LPFC_SLIPORT_LITTLE_ENDIAN);
7795                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7796                                LPFC_SLIPORT_INIT_PORT);
7797                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7798                                CTRLregaddr);
7799                         /* flush */
7800                         pci_read_config_word(phba->pcidev,
7801                                              PCI_DEVICE_ID, &devid);
7802                         /*
7803                          * Poll the Port Status Register and wait for RDY for
7804                          * up to 10 seconds.  If the port doesn't respond, treat
7805                          * it as an error.  If the port responds with RN, start
7806                          * the loop again.
7807                          */
7808                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7809                                 msleep(10);
7810                                 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7811                                               STATUSregaddr, &reg_data.word0)) {
7812                                         rc = -ENODEV;
7813                                         goto out;
7814                                 }
7815                                 if (bf_get(lpfc_sliport_status_rn, &reg_data))
7816                                         reset_again++;
7817                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7818                                         break;
7819                         }
7820
7821                         /*
7822                          * If the port responds to the init request with
7823                          * reset needed, delay for a bit and restart the loop.
7824                          */
7825                         if (reset_again && (rdy_chk < 1000)) {
7826                                 msleep(10);
7827                                 reset_again = 0;
7828                                 continue;
7829                         }
7830
7831                         /* Detect any port errors. */
7832                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7833                             (rdy_chk >= 1000)) {
7834                                 phba->work_status[0] = readl(
7835                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
7836                                 phba->work_status[1] = readl(
7837                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
7838                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7839                                         "2890 Port error detected during port "
7840                                         "reset(%d): wait_tmo:%d ms, "
7841                                         "port status reg 0x%x, "
7842                                         "error 1=0x%x, error 2=0x%x\n",
7843                                         num_resets, rdy_chk*10,
7844                                         reg_data.word0,
7845                                         phba->work_status[0],
7846                                         phba->work_status[1]);
7847                                 rc = -ENODEV;
7848                         }
7849
7850                         /*
7851                          * Terminate the outer loop provided the Port indicated
7852                          * ready within 10 seconds.
7853                          */
7854                         if (rdy_chk < 1000)
7855                                 break;
7856                 }
7857                 /* delay driver action following IF_TYPE_2 function reset */
7858                 msleep(100);
7859                 break;
7860         case LPFC_SLI_INTF_IF_TYPE_1:
7861         default:
7862                 break;
7863         }
7864
7865 out:
7866         /* Catch the not-ready port failure after a port reset. */
7867         if (num_resets >= MAX_IF_TYPE_2_RESETS) {
7868                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7869                                 "3317 HBA not functional: IP Reset Failed "
7870                                 "after (%d) retries, try: "
7871                                 "echo fw_reset > board_mode\n", num_resets);
7872                 rc = -ENODEV;
7873         }
7874
7875         return rc;
7876 }
7877
7878 /**
7879  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7880  * @phba: pointer to lpfc hba data structure.
7881  *
7882  * This routine is invoked to set up the PCI device memory space for device
7883  * with SLI-4 interface spec.
7884  *
7885  * Return codes
7886  *      0 - successful
7887  *      other values - error
7888  **/
7889 static int
7890 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7891 {
7892         struct pci_dev *pdev;
7893         unsigned long bar0map_len, bar1map_len, bar2map_len;
7894         int error = -ENODEV;
7895         uint32_t if_type;
7896
7897         /* Obtain PCI device reference */
7898         if (!phba->pcidev)
7899                 return error;
7900         else
7901                 pdev = phba->pcidev;
7902
7903         /* Set the device DMA mask size */
7904         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7905          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7906                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7907                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7908                         return error;
7909                 }
7910         }
7911
7912         /*
7913          * The BARs and register set definitions and offset locations are
7914          * dependent on the if_type.
7915          */
7916         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7917                                   &phba->sli4_hba.sli_intf.word0)) {
7918                 return error;
7919         }
7920
7921         /* There is no SLI3 failback for SLI4 devices. */
7922         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7923             LPFC_SLI_INTF_VALID) {
7924                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7925                                 "2894 SLI_INTF reg contents invalid "
7926                                 "sli_intf reg 0x%x\n",
7927                                 phba->sli4_hba.sli_intf.word0);
7928                 return error;
7929         }
7930
7931         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7932         /*
7933          * Get the bus address of SLI4 device Bar regions and the
7934          * number of bytes required by each mapping. The mapping of the
7935          * particular PCI BARs regions is dependent on the type of
7936          * SLI4 device.
7937          */
7938         if (pci_resource_start(pdev, 0)) {
7939                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7940                 bar0map_len = pci_resource_len(pdev, 0);
7941
7942                 /*
7943                  * Map SLI4 PCI Config Space Register base to a kernel virtual
7944                  * addr
7945                  */
7946                 phba->sli4_hba.conf_regs_memmap_p =
7947                         ioremap(phba->pci_bar0_map, bar0map_len);
7948                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7949                         dev_printk(KERN_ERR, &pdev->dev,
7950                                    "ioremap failed for SLI4 PCI config "
7951                                    "registers.\n");
7952                         goto out;
7953                 }
7954                 /* Set up BAR0 PCI config space register memory map */
7955                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7956         } else {
7957                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7958                 bar0map_len = pci_resource_len(pdev, 1);
7959                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7960                         dev_printk(KERN_ERR, &pdev->dev,
7961                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7962                         goto out;
7963                 }
7964                 phba->sli4_hba.conf_regs_memmap_p =
7965                                 ioremap(phba->pci_bar0_map, bar0map_len);
7966                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7967                         dev_printk(KERN_ERR, &pdev->dev,
7968                                 "ioremap failed for SLI4 PCI config "
7969                                 "registers.\n");
7970                                 goto out;
7971                 }
7972                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7973         }
7974
7975         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7976             (pci_resource_start(pdev, 2))) {
7977                 /*
7978                  * Map SLI4 if type 0 HBA Control Register base to a kernel
7979                  * virtual address and setup the registers.
7980                  */
7981                 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7982                 bar1map_len = pci_resource_len(pdev, 2);
7983                 phba->sli4_hba.ctrl_regs_memmap_p =
7984                                 ioremap(phba->pci_bar1_map, bar1map_len);
7985                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7986                         dev_printk(KERN_ERR, &pdev->dev,
7987                            "ioremap failed for SLI4 HBA control registers.\n");
7988                         goto out_iounmap_conf;
7989                 }
7990                 lpfc_sli4_bar1_register_memmap(phba);
7991         }
7992
7993         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7994             (pci_resource_start(pdev, 4))) {
7995                 /*
7996                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7997                  * virtual address and setup the registers.
7998                  */
7999                 phba->pci_bar2_map = pci_resource_start(pdev, 4);
8000                 bar2map_len = pci_resource_len(pdev, 4);
8001                 phba->sli4_hba.drbl_regs_memmap_p =
8002                                 ioremap(phba->pci_bar2_map, bar2map_len);
8003                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8004                         dev_printk(KERN_ERR, &pdev->dev,
8005                            "ioremap failed for SLI4 HBA doorbell registers.\n");
8006                         goto out_iounmap_ctrl;
8007                 }
8008                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8009                 if (error)
8010                         goto out_iounmap_all;
8011         }
8012
8013         return 0;
8014
8015 out_iounmap_all:
8016         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8017 out_iounmap_ctrl:
8018         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8019 out_iounmap_conf:
8020         iounmap(phba->sli4_hba.conf_regs_memmap_p);
8021 out:
8022         return error;
8023 }
8024
8025 /**
8026  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8027  * @phba: pointer to lpfc hba data structure.
8028  *
8029  * This routine is invoked to unset the PCI device memory space for device
8030  * with SLI-4 interface spec.
8031  **/
8032 static void
8033 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8034 {
8035         uint32_t if_type;
8036         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8037
8038         switch (if_type) {
8039         case LPFC_SLI_INTF_IF_TYPE_0:
8040                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8041                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8042                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8043                 break;
8044         case LPFC_SLI_INTF_IF_TYPE_2:
8045                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8046                 break;
8047         case LPFC_SLI_INTF_IF_TYPE_1:
8048         default:
8049                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8050                            "FATAL - unsupported SLI4 interface type - %d\n",
8051                            if_type);
8052                 break;
8053         }
8054 }
8055
8056 /**
8057  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8058  * @phba: pointer to lpfc hba data structure.
8059  *
8060  * This routine is invoked to enable the MSI-X interrupt vectors to device
8061  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
8062  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
8063  * invoked, enables either all or nothing, depending on the current
8064  * availability of PCI vector resources. The device driver is responsible
8065  * for calling the individual request_irq() to register each MSI-X vector
8066  * with a interrupt handler, which is done in this function. Note that
8067  * later when device is unloading, the driver should always call free_irq()
8068  * on all MSI-X vectors it has done request_irq() on before calling
8069  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8070  * will be left with MSI-X enabled and leaks its vectors.
8071  *
8072  * Return codes
8073  *   0 - successful
8074  *   other values - error
8075  **/
8076 static int
8077 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8078 {
8079         int rc, i;
8080         LPFC_MBOXQ_t *pmb;
8081
8082         /* Set up MSI-X multi-message vectors */
8083         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8084                 phba->msix_entries[i].entry = i;
8085
8086         /* Configure MSI-X capability structure */
8087         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
8088                                 ARRAY_SIZE(phba->msix_entries));
8089         if (rc) {
8090                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8091                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
8092                 goto msi_fail_out;
8093         }
8094         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8095                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8096                                 "0477 MSI-X entry[%d]: vector=x%x "
8097                                 "message=%d\n", i,
8098                                 phba->msix_entries[i].vector,
8099                                 phba->msix_entries[i].entry);
8100         /*
8101          * Assign MSI-X vectors to interrupt handlers
8102          */
8103
8104         /* vector-0 is associated to slow-path handler */
8105         rc = request_irq(phba->msix_entries[0].vector,
8106                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
8107                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
8108         if (rc) {
8109                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8110                                 "0421 MSI-X slow-path request_irq failed "
8111                                 "(%d)\n", rc);
8112                 goto msi_fail_out;
8113         }
8114
8115         /* vector-1 is associated to fast-path handler */
8116         rc = request_irq(phba->msix_entries[1].vector,
8117                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
8118                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
8119
8120         if (rc) {
8121                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8122                                 "0429 MSI-X fast-path request_irq failed "
8123                                 "(%d)\n", rc);
8124                 goto irq_fail_out;
8125         }
8126
8127         /*
8128          * Configure HBA MSI-X attention conditions to messages
8129          */
8130         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8131
8132         if (!pmb) {
8133                 rc = -ENOMEM;
8134                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8135                                 "0474 Unable to allocate memory for issuing "
8136                                 "MBOX_CONFIG_MSI command\n");
8137                 goto mem_fail_out;
8138         }
8139         rc = lpfc_config_msi(phba, pmb);
8140         if (rc)
8141                 goto mbx_fail_out;
8142         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8143         if (rc != MBX_SUCCESS) {
8144                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8145                                 "0351 Config MSI mailbox command failed, "
8146                                 "mbxCmd x%x, mbxStatus x%x\n",
8147                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8148                 goto mbx_fail_out;
8149         }
8150
8151         /* Free memory allocated for mailbox command */
8152         mempool_free(pmb, phba->mbox_mem_pool);
8153         return rc;
8154
8155 mbx_fail_out:
8156         /* Free memory allocated for mailbox command */
8157         mempool_free(pmb, phba->mbox_mem_pool);
8158
8159 mem_fail_out:
8160         /* free the irq already requested */
8161         free_irq(phba->msix_entries[1].vector, phba);
8162
8163 irq_fail_out:
8164         /* free the irq already requested */
8165         free_irq(phba->msix_entries[0].vector, phba);
8166
8167 msi_fail_out:
8168         /* Unconfigure MSI-X capability structure */
8169         pci_disable_msix(phba->pcidev);
8170         return rc;
8171 }
8172
8173 /**
8174  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8175  * @phba: pointer to lpfc hba data structure.
8176  *
8177  * This routine is invoked to release the MSI-X vectors and then disable the
8178  * MSI-X interrupt mode to device with SLI-3 interface spec.
8179  **/
8180 static void
8181 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8182 {
8183         int i;
8184
8185         /* Free up MSI-X multi-message vectors */
8186         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8187                 free_irq(phba->msix_entries[i].vector, phba);
8188         /* Disable MSI-X */
8189         pci_disable_msix(phba->pcidev);
8190
8191         return;
8192 }
8193
8194 /**
8195  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8196  * @phba: pointer to lpfc hba data structure.
8197  *
8198  * This routine is invoked to enable the MSI interrupt mode to device with
8199  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8200  * enable the MSI vector. The device driver is responsible for calling the
8201  * request_irq() to register MSI vector with a interrupt the handler, which
8202  * is done in this function.
8203  *
8204  * Return codes
8205  *      0 - successful
8206  *      other values - error
8207  */
8208 static int
8209 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8210 {
8211         int rc;
8212
8213         rc = pci_enable_msi(phba->pcidev);
8214         if (!rc)
8215                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8216                                 "0462 PCI enable MSI mode success.\n");
8217         else {
8218                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8219                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
8220                 return rc;
8221         }
8222
8223         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8224                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8225         if (rc) {
8226                 pci_disable_msi(phba->pcidev);
8227                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8228                                 "0478 MSI request_irq failed (%d)\n", rc);
8229         }
8230         return rc;
8231 }
8232
8233 /**
8234  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8235  * @phba: pointer to lpfc hba data structure.
8236  *
8237  * This routine is invoked to disable the MSI interrupt mode to device with
8238  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8239  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8240  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8241  * its vector.
8242  */
8243 static void
8244 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8245 {
8246         free_irq(phba->pcidev->irq, phba);
8247         pci_disable_msi(phba->pcidev);
8248         return;
8249 }
8250
8251 /**
8252  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8253  * @phba: pointer to lpfc hba data structure.
8254  *
8255  * This routine is invoked to enable device interrupt and associate driver's
8256  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8257  * spec. Depends on the interrupt mode configured to the driver, the driver
8258  * will try to fallback from the configured interrupt mode to an interrupt
8259  * mode which is supported by the platform, kernel, and device in the order
8260  * of:
8261  * MSI-X -> MSI -> IRQ.
8262  *
8263  * Return codes
8264  *   0 - successful
8265  *   other values - error
8266  **/
8267 static uint32_t
8268 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8269 {
8270         uint32_t intr_mode = LPFC_INTR_ERROR;
8271         int retval;
8272
8273         if (cfg_mode == 2) {
8274                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8275                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8276                 if (!retval) {
8277                         /* Now, try to enable MSI-X interrupt mode */
8278                         retval = lpfc_sli_enable_msix(phba);
8279                         if (!retval) {
8280                                 /* Indicate initialization to MSI-X mode */
8281                                 phba->intr_type = MSIX;
8282                                 intr_mode = 2;
8283                         }
8284                 }
8285         }
8286
8287         /* Fallback to MSI if MSI-X initialization failed */
8288         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8289                 retval = lpfc_sli_enable_msi(phba);
8290                 if (!retval) {
8291                         /* Indicate initialization to MSI mode */
8292                         phba->intr_type = MSI;
8293                         intr_mode = 1;
8294                 }
8295         }
8296
8297         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8298         if (phba->intr_type == NONE) {
8299                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8300                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8301                 if (!retval) {
8302                         /* Indicate initialization to INTx mode */
8303                         phba->intr_type = INTx;
8304                         intr_mode = 0;
8305                 }
8306         }
8307         return intr_mode;
8308 }
8309
8310 /**
8311  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8312  * @phba: pointer to lpfc hba data structure.
8313  *
8314  * This routine is invoked to disable device interrupt and disassociate the
8315  * driver's interrupt handler(s) from interrupt vector(s) to device with
8316  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8317  * release the interrupt vector(s) for the message signaled interrupt.
8318  **/
8319 static void
8320 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8321 {
8322         /* Disable the currently initialized interrupt mode */
8323         if (phba->intr_type == MSIX)
8324                 lpfc_sli_disable_msix(phba);
8325         else if (phba->intr_type == MSI)
8326                 lpfc_sli_disable_msi(phba);
8327         else if (phba->intr_type == INTx)
8328                 free_irq(phba->pcidev->irq, phba);
8329
8330         /* Reset interrupt management states */
8331         phba->intr_type = NONE;
8332         phba->sli.slistat.sli_intr = 0;
8333
8334         return;
8335 }
8336
8337 /**
8338  * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8339  * @phba: pointer to lpfc hba data structure.
8340  *
8341  * Find next available CPU to use for IRQ to CPU affinity.
8342  */
8343 static int
8344 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8345 {
8346         struct lpfc_vector_map_info *cpup;
8347         int cpu;
8348
8349         cpup = phba->sli4_hba.cpu_map;
8350         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8351                 /* CPU must be online */
8352                 if (cpu_online(cpu)) {
8353                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8354                             (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8355                             (cpup->phys_id == phys_id)) {
8356                                 return cpu;
8357                         }
8358                 }
8359                 cpup++;
8360         }
8361
8362         /*
8363          * If we get here, we have used ALL CPUs for the specific
8364          * phys_id. Now we need to clear out lpfc_used_cpu and start
8365          * reusing CPUs.
8366          */
8367
8368         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8369                 if (lpfc_used_cpu[cpu] == phys_id)
8370                         lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8371         }
8372
8373         cpup = phba->sli4_hba.cpu_map;
8374         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8375                 /* CPU must be online */
8376                 if (cpu_online(cpu)) {
8377                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8378                             (cpup->phys_id == phys_id)) {
8379                                 return cpu;
8380                         }
8381                 }
8382                 cpup++;
8383         }
8384         return LPFC_VECTOR_MAP_EMPTY;
8385 }
8386
8387 /**
8388  * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8389  * @phba:       pointer to lpfc hba data structure.
8390  * @vectors:    number of HBA vectors
8391  *
8392  * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8393  * affinization across multple physical CPUs (numa nodes).
8394  * In addition, this routine will assign an IO channel for each CPU
8395  * to use when issuing I/Os.
8396  */
8397 static int
8398 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8399 {
8400         int i, idx, saved_chann, used_chann, cpu, phys_id;
8401         int max_phys_id, num_io_channel, first_cpu;
8402         struct lpfc_vector_map_info *cpup;
8403 #ifdef CONFIG_X86
8404         struct cpuinfo_x86 *cpuinfo;
8405 #endif
8406         struct cpumask *mask;
8407         uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8408
8409         /* If there is no mapping, just return */
8410         if (!phba->cfg_fcp_cpu_map)
8411                 return 1;
8412
8413         /* Init cpu_map array */
8414         memset(phba->sli4_hba.cpu_map, 0xff,
8415                (sizeof(struct lpfc_vector_map_info) *
8416                 phba->sli4_hba.num_present_cpu));
8417
8418         max_phys_id = 0;
8419         phys_id = 0;
8420         num_io_channel = 0;
8421         first_cpu = LPFC_VECTOR_MAP_EMPTY;
8422
8423         /* Update CPU map with physical id and core id of each CPU */
8424         cpup = phba->sli4_hba.cpu_map;
8425         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8426 #ifdef CONFIG_X86
8427                 cpuinfo = &cpu_data(cpu);
8428                 cpup->phys_id = cpuinfo->phys_proc_id;
8429                 cpup->core_id = cpuinfo->cpu_core_id;
8430 #else
8431                 /* No distinction between CPUs for other platforms */
8432                 cpup->phys_id = 0;
8433                 cpup->core_id = 0;
8434 #endif
8435
8436                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8437                                 "3328 CPU physid %d coreid %d\n",
8438                                 cpup->phys_id, cpup->core_id);
8439
8440                 if (cpup->phys_id > max_phys_id)
8441                         max_phys_id = cpup->phys_id;
8442                 cpup++;
8443         }
8444
8445         /* Now associate the HBA vectors with specific CPUs */
8446         for (idx = 0; idx < vectors; idx++) {
8447                 cpup = phba->sli4_hba.cpu_map;
8448                 cpu = lpfc_find_next_cpu(phba, phys_id);
8449                 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8450
8451                         /* Try for all phys_id's */
8452                         for (i = 1; i < max_phys_id; i++) {
8453                                 phys_id++;
8454                                 if (phys_id > max_phys_id)
8455                                         phys_id = 0;
8456                                 cpu = lpfc_find_next_cpu(phba, phys_id);
8457                                 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8458                                         continue;
8459                                 goto found;
8460                         }
8461
8462                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8463                                         "3329 Cannot set affinity:"
8464                                         "Error mapping vector %d (%d)\n",
8465                                         idx, vectors);
8466                         return 0;
8467                 }
8468 found:
8469                 cpup += cpu;
8470                 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8471                         lpfc_used_cpu[cpu] = phys_id;
8472
8473                 /* Associate vector with selected CPU */
8474                 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8475
8476                 /* Associate IO channel with selected CPU */
8477                 cpup->channel_id = idx;
8478                 num_io_channel++;
8479
8480                 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8481                         first_cpu = cpu;
8482
8483                 /* Now affinitize to the selected CPU */
8484                 mask = &cpup->maskbits;
8485                 cpumask_clear(mask);
8486                 cpumask_set_cpu(cpu, mask);
8487                 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8488                                           vector, mask);
8489
8490                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8491                                 "3330 Set Affinity: CPU %d channel %d "
8492                                 "irq %d (%x)\n",
8493                                 cpu, cpup->channel_id,
8494                                 phba->sli4_hba.msix_entries[idx].vector, i);
8495
8496                 /* Spread vector mapping across multple physical CPU nodes */
8497                 phys_id++;
8498                 if (phys_id > max_phys_id)
8499                         phys_id = 0;
8500         }
8501
8502         /*
8503          * Finally fill in the IO channel for any remaining CPUs.
8504          * At this point, all IO channels have been assigned to a specific
8505          * MSIx vector, mapped to a specific CPU.
8506          * Base the remaining IO channel assigned, to IO channels already
8507          * assigned to other CPUs on the same phys_id.
8508          */
8509         for (i = 0; i <= max_phys_id; i++) {
8510                 /*
8511                  * If there are no io channels already mapped to
8512                  * this phys_id, just round robin thru the io_channels.
8513                  * Setup chann[] for round robin.
8514                  */
8515                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8516                         chann[idx] = idx;
8517
8518                 saved_chann = 0;
8519                 used_chann = 0;
8520
8521                 /*
8522                  * First build a list of IO channels already assigned
8523                  * to this phys_id before reassigning the same IO
8524                  * channels to the remaining CPUs.
8525                  */
8526                 cpup = phba->sli4_hba.cpu_map;
8527                 cpu = first_cpu;
8528                 cpup += cpu;
8529                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8530                      idx++) {
8531                         if (cpup->phys_id == i) {
8532                                 /*
8533                                  * Save any IO channels that are
8534                                  * already mapped to this phys_id.
8535                                  */
8536                                 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8537                                         chann[saved_chann] =
8538                                                 cpup->channel_id;
8539                                         saved_chann++;
8540                                         goto out;
8541                                 }
8542
8543                                 /* See if we are using round-robin */
8544                                 if (saved_chann == 0)
8545                                         saved_chann =
8546                                                 phba->cfg_fcp_io_channel;
8547
8548                                 /* Associate next IO channel with CPU */
8549                                 cpup->channel_id = chann[used_chann];
8550                                 num_io_channel++;
8551                                 used_chann++;
8552                                 if (used_chann == saved_chann)
8553                                         used_chann = 0;
8554
8555                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8556                                                 "3331 Set IO_CHANN "
8557                                                 "CPU %d channel %d\n",
8558                                                 idx, cpup->channel_id);
8559                         }
8560 out:
8561                         cpu++;
8562                         if (cpu >= phba->sli4_hba.num_present_cpu) {
8563                                 cpup = phba->sli4_hba.cpu_map;
8564                                 cpu = 0;
8565                         } else {
8566                                 cpup++;
8567                         }
8568                 }
8569         }
8570
8571         if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8572                 cpup = phba->sli4_hba.cpu_map;
8573                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8574                         if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8575                                 cpup->channel_id = 0;
8576                                 num_io_channel++;
8577
8578                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8579                                                 "3332 Assign IO_CHANN "
8580                                                 "CPU %d channel %d\n",
8581                                                 idx, cpup->channel_id);
8582                         }
8583                         cpup++;
8584                 }
8585         }
8586
8587         /* Sanity check */
8588         if (num_io_channel != phba->sli4_hba.num_present_cpu)
8589                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8590                                 "3333 Set affinity mismatch:"
8591                                 "%d chann != %d cpus: %d vactors\n",
8592                                 num_io_channel, phba->sli4_hba.num_present_cpu,
8593                                 vectors);
8594
8595         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8596         return 1;
8597 }
8598
8599
8600 /**
8601  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8602  * @phba: pointer to lpfc hba data structure.
8603  *
8604  * This routine is invoked to enable the MSI-X interrupt vectors to device
8605  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8606  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8607  * enables either all or nothing, depending on the current availability of
8608  * PCI vector resources. The device driver is responsible for calling the
8609  * individual request_irq() to register each MSI-X vector with a interrupt
8610  * handler, which is done in this function. Note that later when device is
8611  * unloading, the driver should always call free_irq() on all MSI-X vectors
8612  * it has done request_irq() on before calling pci_disable_msix(). Failure
8613  * to do so results in a BUG_ON() and a device will be left with MSI-X
8614  * enabled and leaks its vectors.
8615  *
8616  * Return codes
8617  * 0 - successful
8618  * other values - error
8619  **/
8620 static int
8621 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8622 {
8623         int vectors, rc, index;
8624
8625         /* Set up MSI-X multi-message vectors */
8626         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8627                 phba->sli4_hba.msix_entries[index].entry = index;
8628
8629         /* Configure MSI-X capability structure */
8630         vectors = phba->cfg_fcp_io_channel;
8631 enable_msix_vectors:
8632         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
8633                              vectors);
8634         if (rc > 1) {
8635                 vectors = rc;
8636                 goto enable_msix_vectors;
8637         } else if (rc) {
8638                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8639                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
8640                 goto msi_fail_out;
8641         }
8642
8643         /* Log MSI-X vector assignment */
8644         for (index = 0; index < vectors; index++)
8645                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8646                                 "0489 MSI-X entry[%d]: vector=x%x "
8647                                 "message=%d\n", index,
8648                                 phba->sli4_hba.msix_entries[index].vector,
8649                                 phba->sli4_hba.msix_entries[index].entry);
8650
8651         /* Assign MSI-X vectors to interrupt handlers */
8652         for (index = 0; index < vectors; index++) {
8653                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8654                 sprintf((char *)&phba->sli4_hba.handler_name[index],
8655                          LPFC_DRIVER_HANDLER_NAME"%d", index);
8656
8657                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8658                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8659                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8660                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
8661                                  &lpfc_sli4_hba_intr_handler, IRQF_SHARED,
8662                                  (char *)&phba->sli4_hba.handler_name[index],
8663                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8664                 if (rc) {
8665                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8666                                         "0486 MSI-X fast-path (%d) "
8667                                         "request_irq failed (%d)\n", index, rc);
8668                         goto cfg_fail_out;
8669                 }
8670         }
8671
8672         if (vectors != phba->cfg_fcp_io_channel) {
8673                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8674                                 "3238 Reducing IO channels to match number of "
8675                                 "MSI-X vectors, requested %d got %d\n",
8676                                 phba->cfg_fcp_io_channel, vectors);
8677                 phba->cfg_fcp_io_channel = vectors;
8678         }
8679
8680         lpfc_sli4_set_affinity(phba, vectors);
8681         return rc;
8682
8683 cfg_fail_out:
8684         /* free the irq already requested */
8685         for (--index; index >= 0; index--)
8686                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8687                          &phba->sli4_hba.fcp_eq_hdl[index]);
8688
8689 msi_fail_out:
8690         /* Unconfigure MSI-X capability structure */
8691         pci_disable_msix(phba->pcidev);
8692         return rc;
8693 }
8694
8695 /**
8696  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8697  * @phba: pointer to lpfc hba data structure.
8698  *
8699  * This routine is invoked to release the MSI-X vectors and then disable the
8700  * MSI-X interrupt mode to device with SLI-4 interface spec.
8701  **/
8702 static void
8703 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8704 {
8705         int index;
8706
8707         /* Free up MSI-X multi-message vectors */
8708         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8709                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8710                          &phba->sli4_hba.fcp_eq_hdl[index]);
8711
8712         /* Disable MSI-X */
8713         pci_disable_msix(phba->pcidev);
8714
8715         return;
8716 }
8717
8718 /**
8719  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8720  * @phba: pointer to lpfc hba data structure.
8721  *
8722  * This routine is invoked to enable the MSI interrupt mode to device with
8723  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8724  * to enable the MSI vector. The device driver is responsible for calling
8725  * the request_irq() to register MSI vector with a interrupt the handler,
8726  * which is done in this function.
8727  *
8728  * Return codes
8729  *      0 - successful
8730  *      other values - error
8731  **/
8732 static int
8733 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8734 {
8735         int rc, index;
8736
8737         rc = pci_enable_msi(phba->pcidev);
8738         if (!rc)
8739                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8740                                 "0487 PCI enable MSI mode success.\n");
8741         else {
8742                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8743                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
8744                 return rc;
8745         }
8746
8747         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8748                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8749         if (rc) {
8750                 pci_disable_msi(phba->pcidev);
8751                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8752                                 "0490 MSI request_irq failed (%d)\n", rc);
8753                 return rc;
8754         }
8755
8756         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
8757                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8758                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8759         }
8760
8761         return 0;
8762 }
8763
8764 /**
8765  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8766  * @phba: pointer to lpfc hba data structure.
8767  *
8768  * This routine is invoked to disable the MSI interrupt mode to device with
8769  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8770  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8771  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8772  * its vector.
8773  **/
8774 static void
8775 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8776 {
8777         free_irq(phba->pcidev->irq, phba);
8778         pci_disable_msi(phba->pcidev);
8779         return;
8780 }
8781
8782 /**
8783  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8784  * @phba: pointer to lpfc hba data structure.
8785  *
8786  * This routine is invoked to enable device interrupt and associate driver's
8787  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8788  * interface spec. Depends on the interrupt mode configured to the driver,
8789  * the driver will try to fallback from the configured interrupt mode to an
8790  * interrupt mode which is supported by the platform, kernel, and device in
8791  * the order of:
8792  * MSI-X -> MSI -> IRQ.
8793  *
8794  * Return codes
8795  *      0 - successful
8796  *      other values - error
8797  **/
8798 static uint32_t
8799 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8800 {
8801         uint32_t intr_mode = LPFC_INTR_ERROR;
8802         int retval, index;
8803
8804         if (cfg_mode == 2) {
8805                 /* Preparation before conf_msi mbox cmd */
8806                 retval = 0;
8807                 if (!retval) {
8808                         /* Now, try to enable MSI-X interrupt mode */
8809                         retval = lpfc_sli4_enable_msix(phba);
8810                         if (!retval) {
8811                                 /* Indicate initialization to MSI-X mode */
8812                                 phba->intr_type = MSIX;
8813                                 intr_mode = 2;
8814                         }
8815                 }
8816         }
8817
8818         /* Fallback to MSI if MSI-X initialization failed */
8819         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8820                 retval = lpfc_sli4_enable_msi(phba);
8821                 if (!retval) {
8822                         /* Indicate initialization to MSI mode */
8823                         phba->intr_type = MSI;
8824                         intr_mode = 1;
8825                 }
8826         }
8827
8828         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8829         if (phba->intr_type == NONE) {
8830                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8831                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8832                 if (!retval) {
8833                         /* Indicate initialization to INTx mode */
8834                         phba->intr_type = INTx;
8835                         intr_mode = 0;
8836                         for (index = 0; index < phba->cfg_fcp_io_channel;
8837                              index++) {
8838                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8839                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8840                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
8841                                         fcp_eq_in_use, 1);
8842                         }
8843                 }
8844         }
8845         return intr_mode;
8846 }
8847
8848 /**
8849  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8850  * @phba: pointer to lpfc hba data structure.
8851  *
8852  * This routine is invoked to disable device interrupt and disassociate
8853  * the driver's interrupt handler(s) from interrupt vector(s) to device
8854  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8855  * will release the interrupt vector(s) for the message signaled interrupt.
8856  **/
8857 static void
8858 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
8859 {
8860         /* Disable the currently initialized interrupt mode */
8861         if (phba->intr_type == MSIX)
8862                 lpfc_sli4_disable_msix(phba);
8863         else if (phba->intr_type == MSI)
8864                 lpfc_sli4_disable_msi(phba);
8865         else if (phba->intr_type == INTx)
8866                 free_irq(phba->pcidev->irq, phba);
8867
8868         /* Reset interrupt management states */
8869         phba->intr_type = NONE;
8870         phba->sli.slistat.sli_intr = 0;
8871
8872         return;
8873 }
8874
8875 /**
8876  * lpfc_unset_hba - Unset SLI3 hba device initialization
8877  * @phba: pointer to lpfc hba data structure.
8878  *
8879  * This routine is invoked to unset the HBA device initialization steps to
8880  * a device with SLI-3 interface spec.
8881  **/
8882 static void
8883 lpfc_unset_hba(struct lpfc_hba *phba)
8884 {
8885         struct lpfc_vport *vport = phba->pport;
8886         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
8887
8888         spin_lock_irq(shost->host_lock);
8889         vport->load_flag |= FC_UNLOADING;
8890         spin_unlock_irq(shost->host_lock);
8891
8892         kfree(phba->vpi_bmask);
8893         kfree(phba->vpi_ids);
8894
8895         lpfc_stop_hba_timers(phba);
8896
8897         phba->pport->work_port_events = 0;
8898
8899         lpfc_sli_hba_down(phba);
8900
8901         lpfc_sli_brdrestart(phba);
8902
8903         lpfc_sli_disable_intr(phba);
8904
8905         return;
8906 }
8907
8908 /**
8909  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8910  * @phba: Pointer to HBA context object.
8911  *
8912  * This function is called in the SLI4 code path to wait for completion
8913  * of device's XRIs exchange busy. It will check the XRI exchange busy
8914  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8915  * that, it will check the XRI exchange busy on outstanding FCP and ELS
8916  * I/Os every 30 seconds, log error message, and wait forever. Only when
8917  * all XRI exchange busy complete, the driver unload shall proceed with
8918  * invoking the function reset ioctl mailbox command to the CNA and the
8919  * the rest of the driver unload resource release.
8920  **/
8921 static void
8922 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8923 {
8924         int wait_time = 0;
8925         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8926         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8927
8928         while (!fcp_xri_cmpl || !els_xri_cmpl) {
8929                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8930                         if (!fcp_xri_cmpl)
8931                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8932                                                 "2877 FCP XRI exchange busy "
8933                                                 "wait time: %d seconds.\n",
8934                                                 wait_time/1000);
8935                         if (!els_xri_cmpl)
8936                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8937                                                 "2878 ELS XRI exchange busy "
8938                                                 "wait time: %d seconds.\n",
8939                                                 wait_time/1000);
8940                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8941                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8942                 } else {
8943                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8944                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8945                 }
8946                 fcp_xri_cmpl =
8947                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8948                 els_xri_cmpl =
8949                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8950         }
8951 }
8952
8953 /**
8954  * lpfc_sli4_hba_unset - Unset the fcoe hba
8955  * @phba: Pointer to HBA context object.
8956  *
8957  * This function is called in the SLI4 code path to reset the HBA's FCoE
8958  * function. The caller is not required to hold any lock. This routine
8959  * issues PCI function reset mailbox command to reset the FCoE function.
8960  * At the end of the function, it calls lpfc_hba_down_post function to
8961  * free any pending commands.
8962  **/
8963 static void
8964 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8965 {
8966         int wait_cnt = 0;
8967         LPFC_MBOXQ_t *mboxq;
8968         struct pci_dev *pdev = phba->pcidev;
8969
8970         lpfc_stop_hba_timers(phba);
8971         phba->sli4_hba.intr_enable = 0;
8972
8973         /*
8974          * Gracefully wait out the potential current outstanding asynchronous
8975          * mailbox command.
8976          */
8977
8978         /* First, block any pending async mailbox command from posted */
8979         spin_lock_irq(&phba->hbalock);
8980         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8981         spin_unlock_irq(&phba->hbalock);
8982         /* Now, trying to wait it out if we can */
8983         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8984                 msleep(10);
8985                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8986                         break;
8987         }
8988         /* Forcefully release the outstanding mailbox command if timed out */
8989         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8990                 spin_lock_irq(&phba->hbalock);
8991                 mboxq = phba->sli.mbox_active;
8992                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8993                 __lpfc_mbox_cmpl_put(phba, mboxq);
8994                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8995                 phba->sli.mbox_active = NULL;
8996                 spin_unlock_irq(&phba->hbalock);
8997         }
8998
8999         /* Abort all iocbs associated with the hba */
9000         lpfc_sli_hba_iocb_abort(phba);
9001
9002         /* Wait for completion of device XRI exchange busy */
9003         lpfc_sli4_xri_exchange_busy_wait(phba);
9004
9005         /* Disable PCI subsystem interrupt */
9006         lpfc_sli4_disable_intr(phba);
9007
9008         /* Disable SR-IOV if enabled */
9009         if (phba->cfg_sriov_nr_virtfn)
9010                 pci_disable_sriov(pdev);
9011
9012         /* Stop kthread signal shall trigger work_done one more time */
9013         kthread_stop(phba->worker_thread);
9014
9015         /* Reset SLI4 HBA FCoE function */
9016         lpfc_pci_function_reset(phba);
9017         lpfc_sli4_queue_destroy(phba);
9018
9019         /* Stop the SLI4 device port */
9020         phba->pport->work_port_events = 0;
9021 }
9022
9023  /**
9024  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9025  * @phba: Pointer to HBA context object.
9026  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9027  *
9028  * This function is called in the SLI4 code path to read the port's
9029  * sli4 capabilities.
9030  *
9031  * This function may be be called from any context that can block-wait
9032  * for the completion.  The expectation is that this routine is called
9033  * typically from probe_one or from the online routine.
9034  **/
9035 int
9036 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9037 {
9038         int rc;
9039         struct lpfc_mqe *mqe;
9040         struct lpfc_pc_sli4_params *sli4_params;
9041         uint32_t mbox_tmo;
9042
9043         rc = 0;
9044         mqe = &mboxq->u.mqe;
9045
9046         /* Read the port's SLI4 Parameters port capabilities */
9047         lpfc_pc_sli4_params(mboxq);
9048         if (!phba->sli4_hba.intr_enable)
9049                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9050         else {
9051                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9052                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9053         }
9054
9055         if (unlikely(rc))
9056                 return 1;
9057
9058         sli4_params = &phba->sli4_hba.pc_sli4_params;
9059         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9060         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9061         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9062         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9063                                              &mqe->un.sli4_params);
9064         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9065                                              &mqe->un.sli4_params);
9066         sli4_params->proto_types = mqe->un.sli4_params.word3;
9067         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9068         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9069         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9070         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9071         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9072         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9073         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9074         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9075         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9076         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9077         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9078         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9079         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9080         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9081         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9082         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9083         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9084         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9085         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9086         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9087
9088         /* Make sure that sge_supp_len can be handled by the driver */
9089         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9090                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9091
9092         return rc;
9093 }
9094
9095 /**
9096  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9097  * @phba: Pointer to HBA context object.
9098  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9099  *
9100  * This function is called in the SLI4 code path to read the port's
9101  * sli4 capabilities.
9102  *
9103  * This function may be be called from any context that can block-wait
9104  * for the completion.  The expectation is that this routine is called
9105  * typically from probe_one or from the online routine.
9106  **/
9107 int
9108 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9109 {
9110         int rc;
9111         struct lpfc_mqe *mqe = &mboxq->u.mqe;
9112         struct lpfc_pc_sli4_params *sli4_params;
9113         uint32_t mbox_tmo;
9114         int length;
9115         struct lpfc_sli4_parameters *mbx_sli4_parameters;
9116
9117         /*
9118          * By default, the driver assumes the SLI4 port requires RPI
9119          * header postings.  The SLI4_PARAM response will correct this
9120          * assumption.
9121          */
9122         phba->sli4_hba.rpi_hdrs_in_use = 1;
9123
9124         /* Read the port's SLI4 Config Parameters */
9125         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9126                   sizeof(struct lpfc_sli4_cfg_mhdr));
9127         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9128                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9129                          length, LPFC_SLI4_MBX_EMBED);
9130         if (!phba->sli4_hba.intr_enable)
9131                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9132         else {
9133                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9134                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9135         }
9136         if (unlikely(rc))
9137                 return rc;
9138         sli4_params = &phba->sli4_hba.pc_sli4_params;
9139         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9140         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9141         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9142         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9143         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9144                                              mbx_sli4_parameters);
9145         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9146                                              mbx_sli4_parameters);
9147         if (bf_get(cfg_phwq, mbx_sli4_parameters))
9148                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9149         else
9150                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9151         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9152         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9153         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9154         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9155         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9156         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9157         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9158                                             mbx_sli4_parameters);
9159         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9160                                            mbx_sli4_parameters);
9161         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9162         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9163
9164         /* Make sure that sge_supp_len can be handled by the driver */
9165         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9166                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9167
9168         return 0;
9169 }
9170
9171 /**
9172  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9173  * @pdev: pointer to PCI device
9174  * @pid: pointer to PCI device identifier
9175  *
9176  * This routine is to be called to attach a device with SLI-3 interface spec
9177  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9178  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9179  * information of the device and driver to see if the driver state that it can
9180  * support this kind of device. If the match is successful, the driver core
9181  * invokes this routine. If this routine determines it can claim the HBA, it
9182  * does all the initialization that it needs to do to handle the HBA properly.
9183  *
9184  * Return code
9185  *      0 - driver can claim the device
9186  *      negative value - driver can not claim the device
9187  **/
9188 static int
9189 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9190 {
9191         struct lpfc_hba   *phba;
9192         struct lpfc_vport *vport = NULL;
9193         struct Scsi_Host  *shost = NULL;
9194         int error;
9195         uint32_t cfg_mode, intr_mode;
9196
9197         /* Allocate memory for HBA structure */
9198         phba = lpfc_hba_alloc(pdev);
9199         if (!phba)
9200                 return -ENOMEM;
9201
9202         /* Perform generic PCI device enabling operation */
9203         error = lpfc_enable_pci_dev(phba);
9204         if (error)
9205                 goto out_free_phba;
9206
9207         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9208         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9209         if (error)
9210                 goto out_disable_pci_dev;
9211
9212         /* Set up SLI-3 specific device PCI memory space */
9213         error = lpfc_sli_pci_mem_setup(phba);
9214         if (error) {
9215                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9216                                 "1402 Failed to set up pci memory space.\n");
9217                 goto out_disable_pci_dev;
9218         }
9219
9220         /* Set up phase-1 common device driver resources */
9221         error = lpfc_setup_driver_resource_phase1(phba);
9222         if (error) {
9223                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9224                                 "1403 Failed to set up driver resource.\n");
9225                 goto out_unset_pci_mem_s3;
9226         }
9227
9228         /* Set up SLI-3 specific device driver resources */
9229         error = lpfc_sli_driver_resource_setup(phba);
9230         if (error) {
9231                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9232                                 "1404 Failed to set up driver resource.\n");
9233                 goto out_unset_pci_mem_s3;
9234         }
9235
9236         /* Initialize and populate the iocb list per host */
9237         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9238         if (error) {
9239                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9240                                 "1405 Failed to initialize iocb list.\n");
9241                 goto out_unset_driver_resource_s3;
9242         }
9243
9244         /* Set up common device driver resources */
9245         error = lpfc_setup_driver_resource_phase2(phba);
9246         if (error) {
9247                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9248                                 "1406 Failed to set up driver resource.\n");
9249                 goto out_free_iocb_list;
9250         }
9251
9252         /* Get the default values for Model Name and Description */
9253         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9254
9255         /* Create SCSI host to the physical port */
9256         error = lpfc_create_shost(phba);
9257         if (error) {
9258                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9259                                 "1407 Failed to create scsi host.\n");
9260                 goto out_unset_driver_resource;
9261         }
9262
9263         /* Configure sysfs attributes */
9264         vport = phba->pport;
9265         error = lpfc_alloc_sysfs_attr(vport);
9266         if (error) {
9267                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9268                                 "1476 Failed to allocate sysfs attr\n");
9269                 goto out_destroy_shost;
9270         }
9271
9272         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9273         /* Now, trying to enable interrupt and bring up the device */
9274         cfg_mode = phba->cfg_use_msi;
9275         while (true) {
9276                 /* Put device to a known state before enabling interrupt */
9277                 lpfc_stop_port(phba);
9278                 /* Configure and enable interrupt */
9279                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9280                 if (intr_mode == LPFC_INTR_ERROR) {
9281                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9282                                         "0431 Failed to enable interrupt.\n");
9283                         error = -ENODEV;
9284                         goto out_free_sysfs_attr;
9285                 }
9286                 /* SLI-3 HBA setup */
9287                 if (lpfc_sli_hba_setup(phba)) {
9288                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9289                                         "1477 Failed to set up hba\n");
9290                         error = -ENODEV;
9291                         goto out_remove_device;
9292                 }
9293
9294                 /* Wait 50ms for the interrupts of previous mailbox commands */
9295                 msleep(50);
9296                 /* Check active interrupts on message signaled interrupts */
9297                 if (intr_mode == 0 ||
9298                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9299                         /* Log the current active interrupt mode */
9300                         phba->intr_mode = intr_mode;
9301                         lpfc_log_intr_mode(phba, intr_mode);
9302                         break;
9303                 } else {
9304                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9305                                         "0447 Configure interrupt mode (%d) "
9306                                         "failed active interrupt test.\n",
9307                                         intr_mode);
9308                         /* Disable the current interrupt mode */
9309                         lpfc_sli_disable_intr(phba);
9310                         /* Try next level of interrupt mode */
9311                         cfg_mode = --intr_mode;
9312                 }
9313         }
9314
9315         /* Perform post initialization setup */
9316         lpfc_post_init_setup(phba);
9317
9318         /* Check if there are static vports to be created. */
9319         lpfc_create_static_vport(phba);
9320
9321         return 0;
9322
9323 out_remove_device:
9324         lpfc_unset_hba(phba);
9325 out_free_sysfs_attr:
9326         lpfc_free_sysfs_attr(vport);
9327 out_destroy_shost:
9328         lpfc_destroy_shost(phba);
9329 out_unset_driver_resource:
9330         lpfc_unset_driver_resource_phase2(phba);
9331 out_free_iocb_list:
9332         lpfc_free_iocb_list(phba);
9333 out_unset_driver_resource_s3:
9334         lpfc_sli_driver_resource_unset(phba);
9335 out_unset_pci_mem_s3:
9336         lpfc_sli_pci_mem_unset(phba);
9337 out_disable_pci_dev:
9338         lpfc_disable_pci_dev(phba);
9339         if (shost)
9340                 scsi_host_put(shost);
9341 out_free_phba:
9342         lpfc_hba_free(phba);
9343         return error;
9344 }
9345
9346 /**
9347  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9348  * @pdev: pointer to PCI device
9349  *
9350  * This routine is to be called to disattach a device with SLI-3 interface
9351  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9352  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9353  * device to be removed from the PCI subsystem properly.
9354  **/
9355 static void
9356 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9357 {
9358         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
9359         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9360         struct lpfc_vport **vports;
9361         struct lpfc_hba   *phba = vport->phba;
9362         int i;
9363         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9364
9365         spin_lock_irq(&phba->hbalock);
9366         vport->load_flag |= FC_UNLOADING;
9367         spin_unlock_irq(&phba->hbalock);
9368
9369         lpfc_free_sysfs_attr(vport);
9370
9371         /* Release all the vports against this physical port */
9372         vports = lpfc_create_vport_work_array(phba);
9373         if (vports != NULL)
9374                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9375                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9376                                 continue;
9377                         fc_vport_terminate(vports[i]->fc_vport);
9378                 }
9379         lpfc_destroy_vport_work_array(phba, vports);
9380
9381         /* Remove FC host and then SCSI host with the physical port */
9382         fc_remove_host(shost);
9383         scsi_remove_host(shost);
9384         lpfc_cleanup(vport);
9385
9386         /*
9387          * Bring down the SLI Layer. This step disable all interrupts,
9388          * clears the rings, discards all mailbox commands, and resets
9389          * the HBA.
9390          */
9391
9392         /* HBA interrupt will be disabled after this call */
9393         lpfc_sli_hba_down(phba);
9394         /* Stop kthread signal shall trigger work_done one more time */
9395         kthread_stop(phba->worker_thread);
9396         /* Final cleanup of txcmplq and reset the HBA */
9397         lpfc_sli_brdrestart(phba);
9398
9399         kfree(phba->vpi_bmask);
9400         kfree(phba->vpi_ids);
9401
9402         lpfc_stop_hba_timers(phba);
9403         spin_lock_irq(&phba->hbalock);
9404         list_del_init(&vport->listentry);
9405         spin_unlock_irq(&phba->hbalock);
9406
9407         lpfc_debugfs_terminate(vport);
9408
9409         /* Disable SR-IOV if enabled */
9410         if (phba->cfg_sriov_nr_virtfn)
9411                 pci_disable_sriov(pdev);
9412
9413         /* Disable interrupt */
9414         lpfc_sli_disable_intr(phba);
9415
9416         pci_set_drvdata(pdev, NULL);
9417         scsi_host_put(shost);
9418
9419         /*
9420          * Call scsi_free before mem_free since scsi bufs are released to their
9421          * corresponding pools here.
9422          */
9423         lpfc_scsi_free(phba);
9424         lpfc_mem_free_all(phba);
9425
9426         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9427                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9428
9429         /* Free resources associated with SLI2 interface */
9430         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9431                           phba->slim2p.virt, phba->slim2p.phys);
9432
9433         /* unmap adapter SLIM and Control Registers */
9434         iounmap(phba->ctrl_regs_memmap_p);
9435         iounmap(phba->slim_memmap_p);
9436
9437         lpfc_hba_free(phba);
9438
9439         pci_release_selected_regions(pdev, bars);
9440         pci_disable_device(pdev);
9441 }
9442
9443 /**
9444  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9445  * @pdev: pointer to PCI device
9446  * @msg: power management message
9447  *
9448  * This routine is to be called from the kernel's PCI subsystem to support
9449  * system Power Management (PM) to device with SLI-3 interface spec. When
9450  * PM invokes this method, it quiesces the device by stopping the driver's
9451  * worker thread for the device, turning off device's interrupt and DMA,
9452  * and bring the device offline. Note that as the driver implements the
9453  * minimum PM requirements to a power-aware driver's PM support for the
9454  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9455  * to the suspend() method call will be treated as SUSPEND and the driver will
9456  * fully reinitialize its device during resume() method call, the driver will
9457  * set device to PCI_D3hot state in PCI config space instead of setting it
9458  * according to the @msg provided by the PM.
9459  *
9460  * Return code
9461  *      0 - driver suspended the device
9462  *      Error otherwise
9463  **/
9464 static int
9465 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9466 {
9467         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9468         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9469
9470         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9471                         "0473 PCI device Power Management suspend.\n");
9472
9473         /* Bring down the device */
9474         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9475         lpfc_offline(phba);
9476         kthread_stop(phba->worker_thread);
9477
9478         /* Disable interrupt from device */
9479         lpfc_sli_disable_intr(phba);
9480
9481         /* Save device state to PCI config space */
9482         pci_save_state(pdev);
9483         pci_set_power_state(pdev, PCI_D3hot);
9484
9485         return 0;
9486 }
9487
9488 /**
9489  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9490  * @pdev: pointer to PCI device
9491  *
9492  * This routine is to be called from the kernel's PCI subsystem to support
9493  * system Power Management (PM) to device with SLI-3 interface spec. When PM
9494  * invokes this method, it restores the device's PCI config space state and
9495  * fully reinitializes the device and brings it online. Note that as the
9496  * driver implements the minimum PM requirements to a power-aware driver's
9497  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9498  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9499  * driver will fully reinitialize its device during resume() method call,
9500  * the device will be set to PCI_D0 directly in PCI config space before
9501  * restoring the state.
9502  *
9503  * Return code
9504  *      0 - driver suspended the device
9505  *      Error otherwise
9506  **/
9507 static int
9508 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9509 {
9510         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9511         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9512         uint32_t intr_mode;
9513         int error;
9514
9515         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9516                         "0452 PCI device Power Management resume.\n");
9517
9518         /* Restore device state from PCI config space */
9519         pci_set_power_state(pdev, PCI_D0);
9520         pci_restore_state(pdev);
9521
9522         /*
9523          * As the new kernel behavior of pci_restore_state() API call clears
9524          * device saved_state flag, need to save the restored state again.
9525          */
9526         pci_save_state(pdev);
9527
9528         if (pdev->is_busmaster)
9529                 pci_set_master(pdev);
9530
9531         /* Startup the kernel thread for this host adapter. */
9532         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9533                                         "lpfc_worker_%d", phba->brd_no);
9534         if (IS_ERR(phba->worker_thread)) {
9535                 error = PTR_ERR(phba->worker_thread);
9536                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9537                                 "0434 PM resume failed to start worker "
9538                                 "thread: error=x%x.\n", error);
9539                 return error;
9540         }
9541
9542         /* Configure and enable interrupt */
9543         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9544         if (intr_mode == LPFC_INTR_ERROR) {
9545                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9546                                 "0430 PM resume Failed to enable interrupt\n");
9547                 return -EIO;
9548         } else
9549                 phba->intr_mode = intr_mode;
9550
9551         /* Restart HBA and bring it online */
9552         lpfc_sli_brdrestart(phba);
9553         lpfc_online(phba);
9554
9555         /* Log the current active interrupt mode */
9556         lpfc_log_intr_mode(phba, phba->intr_mode);
9557
9558         return 0;
9559 }
9560
9561 /**
9562  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9563  * @phba: pointer to lpfc hba data structure.
9564  *
9565  * This routine is called to prepare the SLI3 device for PCI slot recover. It
9566  * aborts all the outstanding SCSI I/Os to the pci device.
9567  **/
9568 static void
9569 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9570 {
9571         struct lpfc_sli *psli = &phba->sli;
9572         struct lpfc_sli_ring  *pring;
9573
9574         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9575                         "2723 PCI channel I/O abort preparing for recovery\n");
9576
9577         /*
9578          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9579          * and let the SCSI mid-layer to retry them to recover.
9580          */
9581         pring = &psli->ring[psli->fcp_ring];
9582         lpfc_sli_abort_iocb_ring(phba, pring);
9583 }
9584
9585 /**
9586  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9587  * @phba: pointer to lpfc hba data structure.
9588  *
9589  * This routine is called to prepare the SLI3 device for PCI slot reset. It
9590  * disables the device interrupt and pci device, and aborts the internal FCP
9591  * pending I/Os.
9592  **/
9593 static void
9594 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9595 {
9596         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9597                         "2710 PCI channel disable preparing for reset\n");
9598
9599         /* Block any management I/Os to the device */
9600         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9601
9602         /* Block all SCSI devices' I/Os on the host */
9603         lpfc_scsi_dev_block(phba);
9604
9605         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9606         lpfc_sli_flush_fcp_rings(phba);
9607
9608         /* stop all timers */
9609         lpfc_stop_hba_timers(phba);
9610
9611         /* Disable interrupt and pci device */
9612         lpfc_sli_disable_intr(phba);
9613         pci_disable_device(phba->pcidev);
9614 }
9615
9616 /**
9617  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9618  * @phba: pointer to lpfc hba data structure.
9619  *
9620  * This routine is called to prepare the SLI3 device for PCI slot permanently
9621  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9622  * pending I/Os.
9623  **/
9624 static void
9625 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9626 {
9627         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9628                         "2711 PCI channel permanent disable for failure\n");
9629         /* Block all SCSI devices' I/Os on the host */
9630         lpfc_scsi_dev_block(phba);
9631
9632         /* stop all timers */
9633         lpfc_stop_hba_timers(phba);
9634
9635         /* Clean up all driver's outstanding SCSI I/Os */
9636         lpfc_sli_flush_fcp_rings(phba);
9637 }
9638
9639 /**
9640  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9641  * @pdev: pointer to PCI device.
9642  * @state: the current PCI connection state.
9643  *
9644  * This routine is called from the PCI subsystem for I/O error handling to
9645  * device with SLI-3 interface spec. This function is called by the PCI
9646  * subsystem after a PCI bus error affecting this device has been detected.
9647  * When this function is invoked, it will need to stop all the I/Os and
9648  * interrupt(s) to the device. Once that is done, it will return
9649  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9650  * as desired.
9651  *
9652  * Return codes
9653  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9654  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9655  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9656  **/
9657 static pci_ers_result_t
9658 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9659 {
9660         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9661         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9662
9663         switch (state) {
9664         case pci_channel_io_normal:
9665                 /* Non-fatal error, prepare for recovery */
9666                 lpfc_sli_prep_dev_for_recover(phba);
9667                 return PCI_ERS_RESULT_CAN_RECOVER;
9668         case pci_channel_io_frozen:
9669                 /* Fatal error, prepare for slot reset */
9670                 lpfc_sli_prep_dev_for_reset(phba);
9671                 return PCI_ERS_RESULT_NEED_RESET;
9672         case pci_channel_io_perm_failure:
9673                 /* Permanent failure, prepare for device down */
9674                 lpfc_sli_prep_dev_for_perm_failure(phba);
9675                 return PCI_ERS_RESULT_DISCONNECT;
9676         default:
9677                 /* Unknown state, prepare and request slot reset */
9678                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9679                                 "0472 Unknown PCI error state: x%x\n", state);
9680                 lpfc_sli_prep_dev_for_reset(phba);
9681                 return PCI_ERS_RESULT_NEED_RESET;
9682         }
9683 }
9684
9685 /**
9686  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9687  * @pdev: pointer to PCI device.
9688  *
9689  * This routine is called from the PCI subsystem for error handling to
9690  * device with SLI-3 interface spec. This is called after PCI bus has been
9691  * reset to restart the PCI card from scratch, as if from a cold-boot.
9692  * During the PCI subsystem error recovery, after driver returns
9693  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9694  * recovery and then call this routine before calling the .resume method
9695  * to recover the device. This function will initialize the HBA device,
9696  * enable the interrupt, but it will just put the HBA to offline state
9697  * without passing any I/O traffic.
9698  *
9699  * Return codes
9700  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9701  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9702  */
9703 static pci_ers_result_t
9704 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9705 {
9706         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9707         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9708         struct lpfc_sli *psli = &phba->sli;
9709         uint32_t intr_mode;
9710
9711         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9712         if (pci_enable_device_mem(pdev)) {
9713                 printk(KERN_ERR "lpfc: Cannot re-enable "
9714                         "PCI device after reset.\n");
9715                 return PCI_ERS_RESULT_DISCONNECT;
9716         }
9717
9718         pci_restore_state(pdev);
9719
9720         /*
9721          * As the new kernel behavior of pci_restore_state() API call clears
9722          * device saved_state flag, need to save the restored state again.
9723          */
9724         pci_save_state(pdev);
9725
9726         if (pdev->is_busmaster)
9727                 pci_set_master(pdev);
9728
9729         spin_lock_irq(&phba->hbalock);
9730         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9731         spin_unlock_irq(&phba->hbalock);
9732
9733         /* Configure and enable interrupt */
9734         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9735         if (intr_mode == LPFC_INTR_ERROR) {
9736                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9737                                 "0427 Cannot re-enable interrupt after "
9738                                 "slot reset.\n");
9739                 return PCI_ERS_RESULT_DISCONNECT;
9740         } else
9741                 phba->intr_mode = intr_mode;
9742
9743         /* Take device offline, it will perform cleanup */
9744         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9745         lpfc_offline(phba);
9746         lpfc_sli_brdrestart(phba);
9747
9748         /* Log the current active interrupt mode */
9749         lpfc_log_intr_mode(phba, phba->intr_mode);
9750
9751         return PCI_ERS_RESULT_RECOVERED;
9752 }
9753
9754 /**
9755  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9756  * @pdev: pointer to PCI device
9757  *
9758  * This routine is called from the PCI subsystem for error handling to device
9759  * with SLI-3 interface spec. It is called when kernel error recovery tells
9760  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9761  * error recovery. After this call, traffic can start to flow from this device
9762  * again.
9763  */
9764 static void
9765 lpfc_io_resume_s3(struct pci_dev *pdev)
9766 {
9767         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9768         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9769
9770         /* Bring device online, it will be no-op for non-fatal error resume */
9771         lpfc_online(phba);
9772
9773         /* Clean up Advanced Error Reporting (AER) if needed */
9774         if (phba->hba_flag & HBA_AER_ENABLED)
9775                 pci_cleanup_aer_uncorrect_error_status(pdev);
9776 }
9777
9778 /**
9779  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9780  * @phba: pointer to lpfc hba data structure.
9781  *
9782  * returns the number of ELS/CT IOCBs to reserve
9783  **/
9784 int
9785 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9786 {
9787         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9788
9789         if (phba->sli_rev == LPFC_SLI_REV4) {
9790                 if (max_xri <= 100)
9791                         return 10;
9792                 else if (max_xri <= 256)
9793                         return 25;
9794                 else if (max_xri <= 512)
9795                         return 50;
9796                 else if (max_xri <= 1024)
9797                         return 100;
9798                 else if (max_xri <= 1536)
9799                         return 150;
9800                 else if (max_xri <= 2048)
9801                         return 200;
9802                 else
9803                         return 250;
9804         } else
9805                 return 0;
9806 }
9807
9808 /**
9809  * lpfc_write_firmware - attempt to write a firmware image to the port
9810  * @fw: pointer to firmware image returned from request_firmware.
9811  * @phba: pointer to lpfc hba data structure.
9812  *
9813  **/
9814 static void
9815 lpfc_write_firmware(const struct firmware *fw, void *context)
9816 {
9817         struct lpfc_hba *phba = (struct lpfc_hba *)context;
9818         char fwrev[FW_REV_STR_SIZE];
9819         struct lpfc_grp_hdr *image;
9820         struct list_head dma_buffer_list;
9821         int i, rc = 0;
9822         struct lpfc_dmabuf *dmabuf, *next;
9823         uint32_t offset = 0, temp_offset = 0;
9824
9825         /* It can be null in no-wait mode, sanity check */
9826         if (!fw) {
9827                 rc = -ENXIO;
9828                 goto out;
9829         }
9830         image = (struct lpfc_grp_hdr *)fw->data;
9831
9832         INIT_LIST_HEAD(&dma_buffer_list);
9833         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
9834             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
9835              LPFC_FILE_TYPE_GROUP) ||
9836             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
9837             (be32_to_cpu(image->size) != fw->size)) {
9838                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9839                                 "3022 Invalid FW image found. "
9840                                 "Magic:%x Type:%x ID:%x\n",
9841                                 be32_to_cpu(image->magic_number),
9842                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
9843                                 bf_get_be32(lpfc_grp_hdr_id, image));
9844                 rc = -EINVAL;
9845                 goto release_out;
9846         }
9847         lpfc_decode_firmware_rev(phba, fwrev, 1);
9848         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
9849                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9850                                 "3023 Updating Firmware, Current Version:%s "
9851                                 "New Version:%s\n",
9852                                 fwrev, image->revision);
9853                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
9854                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
9855                                          GFP_KERNEL);
9856                         if (!dmabuf) {
9857                                 rc = -ENOMEM;
9858                                 goto release_out;
9859                         }
9860                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9861                                                           SLI4_PAGE_SIZE,
9862                                                           &dmabuf->phys,
9863                                                           GFP_KERNEL);
9864                         if (!dmabuf->virt) {
9865                                 kfree(dmabuf);
9866                                 rc = -ENOMEM;
9867                                 goto release_out;
9868                         }
9869                         list_add_tail(&dmabuf->list, &dma_buffer_list);
9870                 }
9871                 while (offset < fw->size) {
9872                         temp_offset = offset;
9873                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
9874                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
9875                                         memcpy(dmabuf->virt,
9876                                                fw->data + temp_offset,
9877                                                fw->size - temp_offset);
9878                                         temp_offset = fw->size;
9879                                         break;
9880                                 }
9881                                 memcpy(dmabuf->virt, fw->data + temp_offset,
9882                                        SLI4_PAGE_SIZE);
9883                                 temp_offset += SLI4_PAGE_SIZE;
9884                         }
9885                         rc = lpfc_wr_object(phba, &dma_buffer_list,
9886                                     (fw->size - offset), &offset);
9887                         if (rc)
9888                                 goto release_out;
9889                 }
9890                 rc = offset;
9891         }
9892
9893 release_out:
9894         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9895                 list_del(&dmabuf->list);
9896                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9897                                   dmabuf->virt, dmabuf->phys);
9898                 kfree(dmabuf);
9899         }
9900         release_firmware(fw);
9901 out:
9902         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9903                         "3024 Firmware update done: %d.\n", rc);
9904         return;
9905 }
9906
9907 /**
9908  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
9909  * @phba: pointer to lpfc hba data structure.
9910  *
9911  * This routine is called to perform Linux generic firmware upgrade on device
9912  * that supports such feature.
9913  **/
9914 int
9915 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
9916 {
9917         uint8_t file_name[ELX_MODEL_NAME_SIZE];
9918         int ret;
9919         const struct firmware *fw;
9920
9921         /* Only supported on SLI4 interface type 2 for now */
9922         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
9923             LPFC_SLI_INTF_IF_TYPE_2)
9924                 return -EPERM;
9925
9926         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
9927
9928         if (fw_upgrade == INT_FW_UPGRADE) {
9929                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
9930                                         file_name, &phba->pcidev->dev,
9931                                         GFP_KERNEL, (void *)phba,
9932                                         lpfc_write_firmware);
9933         } else if (fw_upgrade == RUN_FW_UPGRADE) {
9934                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
9935                 if (!ret)
9936                         lpfc_write_firmware(fw, (void *)phba);
9937         } else {
9938                 ret = -EINVAL;
9939         }
9940
9941         return ret;
9942 }
9943
9944 /**
9945  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9946  * @pdev: pointer to PCI device
9947  * @pid: pointer to PCI device identifier
9948  *
9949  * This routine is called from the kernel's PCI subsystem to device with
9950  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9951  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9952  * information of the device and driver to see if the driver state that it
9953  * can support this kind of device. If the match is successful, the driver
9954  * core invokes this routine. If this routine determines it can claim the HBA,
9955  * it does all the initialization that it needs to do to handle the HBA
9956  * properly.
9957  *
9958  * Return code
9959  *      0 - driver can claim the device
9960  *      negative value - driver can not claim the device
9961  **/
9962 static int
9963 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9964 {
9965         struct lpfc_hba   *phba;
9966         struct lpfc_vport *vport = NULL;
9967         struct Scsi_Host  *shost = NULL;
9968         int error, ret;
9969         uint32_t cfg_mode, intr_mode;
9970         int adjusted_fcp_io_channel;
9971
9972         /* Allocate memory for HBA structure */
9973         phba = lpfc_hba_alloc(pdev);
9974         if (!phba)
9975                 return -ENOMEM;
9976
9977         /* Perform generic PCI device enabling operation */
9978         error = lpfc_enable_pci_dev(phba);
9979         if (error)
9980                 goto out_free_phba;
9981
9982         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9983         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9984         if (error)
9985                 goto out_disable_pci_dev;
9986
9987         /* Set up SLI-4 specific device PCI memory space */
9988         error = lpfc_sli4_pci_mem_setup(phba);
9989         if (error) {
9990                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9991                                 "1410 Failed to set up pci memory space.\n");
9992                 goto out_disable_pci_dev;
9993         }
9994
9995         /* Set up phase-1 common device driver resources */
9996         error = lpfc_setup_driver_resource_phase1(phba);
9997         if (error) {
9998                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9999                                 "1411 Failed to set up driver resource.\n");
10000                 goto out_unset_pci_mem_s4;
10001         }
10002
10003         /* Set up SLI-4 Specific device driver resources */
10004         error = lpfc_sli4_driver_resource_setup(phba);
10005         if (error) {
10006                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10007                                 "1412 Failed to set up driver resource.\n");
10008                 goto out_unset_pci_mem_s4;
10009         }
10010
10011         /* Initialize and populate the iocb list per host */
10012
10013         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10014                         "2821 initialize iocb list %d.\n",
10015                         phba->cfg_iocb_cnt*1024);
10016         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10017
10018         if (error) {
10019                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10020                                 "1413 Failed to initialize iocb list.\n");
10021                 goto out_unset_driver_resource_s4;
10022         }
10023
10024         INIT_LIST_HEAD(&phba->active_rrq_list);
10025         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10026
10027         /* Set up common device driver resources */
10028         error = lpfc_setup_driver_resource_phase2(phba);
10029         if (error) {
10030                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10031                                 "1414 Failed to set up driver resource.\n");
10032                 goto out_free_iocb_list;
10033         }
10034
10035         /* Get the default values for Model Name and Description */
10036         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10037
10038         /* Create SCSI host to the physical port */
10039         error = lpfc_create_shost(phba);
10040         if (error) {
10041                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10042                                 "1415 Failed to create scsi host.\n");
10043                 goto out_unset_driver_resource;
10044         }
10045
10046         /* Configure sysfs attributes */
10047         vport = phba->pport;
10048         error = lpfc_alloc_sysfs_attr(vport);
10049         if (error) {
10050                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10051                                 "1416 Failed to allocate sysfs attr\n");
10052                 goto out_destroy_shost;
10053         }
10054
10055         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10056         /* Now, trying to enable interrupt and bring up the device */
10057         cfg_mode = phba->cfg_use_msi;
10058
10059         /* Put device to a known state before enabling interrupt */
10060         lpfc_stop_port(phba);
10061         /* Configure and enable interrupt */
10062         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10063         if (intr_mode == LPFC_INTR_ERROR) {
10064                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10065                                 "0426 Failed to enable interrupt.\n");
10066                 error = -ENODEV;
10067                 goto out_free_sysfs_attr;
10068         }
10069         /* Default to single EQ for non-MSI-X */
10070         if (phba->intr_type != MSIX)
10071                 adjusted_fcp_io_channel = 1;
10072         else
10073                 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10074         phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10075         /* Set up SLI-4 HBA */
10076         if (lpfc_sli4_hba_setup(phba)) {
10077                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10078                                 "1421 Failed to set up hba\n");
10079                 error = -ENODEV;
10080                 goto out_disable_intr;
10081         }
10082
10083         /* Log the current active interrupt mode */
10084         phba->intr_mode = intr_mode;
10085         lpfc_log_intr_mode(phba, intr_mode);
10086
10087         /* Perform post initialization setup */
10088         lpfc_post_init_setup(phba);
10089
10090         /* check for firmware upgrade or downgrade */
10091         if (phba->cfg_request_firmware_upgrade)
10092                 ret = lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10093
10094         /* Check if there are static vports to be created. */
10095         lpfc_create_static_vport(phba);
10096         return 0;
10097
10098 out_disable_intr:
10099         lpfc_sli4_disable_intr(phba);
10100 out_free_sysfs_attr:
10101         lpfc_free_sysfs_attr(vport);
10102 out_destroy_shost:
10103         lpfc_destroy_shost(phba);
10104 out_unset_driver_resource:
10105         lpfc_unset_driver_resource_phase2(phba);
10106 out_free_iocb_list:
10107         lpfc_free_iocb_list(phba);
10108 out_unset_driver_resource_s4:
10109         lpfc_sli4_driver_resource_unset(phba);
10110 out_unset_pci_mem_s4:
10111         lpfc_sli4_pci_mem_unset(phba);
10112 out_disable_pci_dev:
10113         lpfc_disable_pci_dev(phba);
10114         if (shost)
10115                 scsi_host_put(shost);
10116 out_free_phba:
10117         lpfc_hba_free(phba);
10118         return error;
10119 }
10120
10121 /**
10122  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10123  * @pdev: pointer to PCI device
10124  *
10125  * This routine is called from the kernel's PCI subsystem to device with
10126  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10127  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10128  * device to be removed from the PCI subsystem properly.
10129  **/
10130 static void
10131 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10132 {
10133         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10134         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10135         struct lpfc_vport **vports;
10136         struct lpfc_hba *phba = vport->phba;
10137         int i;
10138
10139         /* Mark the device unloading flag */
10140         spin_lock_irq(&phba->hbalock);
10141         vport->load_flag |= FC_UNLOADING;
10142         spin_unlock_irq(&phba->hbalock);
10143
10144         /* Free the HBA sysfs attributes */
10145         lpfc_free_sysfs_attr(vport);
10146
10147         /* Release all the vports against this physical port */
10148         vports = lpfc_create_vport_work_array(phba);
10149         if (vports != NULL)
10150                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10151                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10152                                 continue;
10153                         fc_vport_terminate(vports[i]->fc_vport);
10154                 }
10155         lpfc_destroy_vport_work_array(phba, vports);
10156
10157         /* Remove FC host and then SCSI host with the physical port */
10158         fc_remove_host(shost);
10159         scsi_remove_host(shost);
10160
10161         /* Perform cleanup on the physical port */
10162         lpfc_cleanup(vport);
10163
10164         /*
10165          * Bring down the SLI Layer. This step disables all interrupts,
10166          * clears the rings, discards all mailbox commands, and resets
10167          * the HBA FCoE function.
10168          */
10169         lpfc_debugfs_terminate(vport);
10170         lpfc_sli4_hba_unset(phba);
10171
10172         spin_lock_irq(&phba->hbalock);
10173         list_del_init(&vport->listentry);
10174         spin_unlock_irq(&phba->hbalock);
10175
10176         /* Perform scsi free before driver resource_unset since scsi
10177          * buffers are released to their corresponding pools here.
10178          */
10179         lpfc_scsi_free(phba);
10180
10181         lpfc_sli4_driver_resource_unset(phba);
10182
10183         /* Unmap adapter Control and Doorbell registers */
10184         lpfc_sli4_pci_mem_unset(phba);
10185
10186         /* Release PCI resources and disable device's PCI function */
10187         scsi_host_put(shost);
10188         lpfc_disable_pci_dev(phba);
10189
10190         /* Finally, free the driver's device data structure */
10191         lpfc_hba_free(phba);
10192
10193         return;
10194 }
10195
10196 /**
10197  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10198  * @pdev: pointer to PCI device
10199  * @msg: power management message
10200  *
10201  * This routine is called from the kernel's PCI subsystem to support system
10202  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10203  * this method, it quiesces the device by stopping the driver's worker
10204  * thread for the device, turning off device's interrupt and DMA, and bring
10205  * the device offline. Note that as the driver implements the minimum PM
10206  * requirements to a power-aware driver's PM support for suspend/resume -- all
10207  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10208  * method call will be treated as SUSPEND and the driver will fully
10209  * reinitialize its device during resume() method call, the driver will set
10210  * device to PCI_D3hot state in PCI config space instead of setting it
10211  * according to the @msg provided by the PM.
10212  *
10213  * Return code
10214  *      0 - driver suspended the device
10215  *      Error otherwise
10216  **/
10217 static int
10218 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10219 {
10220         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10221         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10222
10223         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10224                         "2843 PCI device Power Management suspend.\n");
10225
10226         /* Bring down the device */
10227         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10228         lpfc_offline(phba);
10229         kthread_stop(phba->worker_thread);
10230
10231         /* Disable interrupt from device */
10232         lpfc_sli4_disable_intr(phba);
10233         lpfc_sli4_queue_destroy(phba);
10234
10235         /* Save device state to PCI config space */
10236         pci_save_state(pdev);
10237         pci_set_power_state(pdev, PCI_D3hot);
10238
10239         return 0;
10240 }
10241
10242 /**
10243  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10244  * @pdev: pointer to PCI device
10245  *
10246  * This routine is called from the kernel's PCI subsystem to support system
10247  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10248  * this method, it restores the device's PCI config space state and fully
10249  * reinitializes the device and brings it online. Note that as the driver
10250  * implements the minimum PM requirements to a power-aware driver's PM for
10251  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10252  * to the suspend() method call will be treated as SUSPEND and the driver
10253  * will fully reinitialize its device during resume() method call, the device
10254  * will be set to PCI_D0 directly in PCI config space before restoring the
10255  * state.
10256  *
10257  * Return code
10258  *      0 - driver suspended the device
10259  *      Error otherwise
10260  **/
10261 static int
10262 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10263 {
10264         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10265         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10266         uint32_t intr_mode;
10267         int error;
10268
10269         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10270                         "0292 PCI device Power Management resume.\n");
10271
10272         /* Restore device state from PCI config space */
10273         pci_set_power_state(pdev, PCI_D0);
10274         pci_restore_state(pdev);
10275
10276         /*
10277          * As the new kernel behavior of pci_restore_state() API call clears
10278          * device saved_state flag, need to save the restored state again.
10279          */
10280         pci_save_state(pdev);
10281
10282         if (pdev->is_busmaster)
10283                 pci_set_master(pdev);
10284
10285          /* Startup the kernel thread for this host adapter. */
10286         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10287                                         "lpfc_worker_%d", phba->brd_no);
10288         if (IS_ERR(phba->worker_thread)) {
10289                 error = PTR_ERR(phba->worker_thread);
10290                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10291                                 "0293 PM resume failed to start worker "
10292                                 "thread: error=x%x.\n", error);
10293                 return error;
10294         }
10295
10296         /* Configure and enable interrupt */
10297         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10298         if (intr_mode == LPFC_INTR_ERROR) {
10299                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10300                                 "0294 PM resume Failed to enable interrupt\n");
10301                 return -EIO;
10302         } else
10303                 phba->intr_mode = intr_mode;
10304
10305         /* Restart HBA and bring it online */
10306         lpfc_sli_brdrestart(phba);
10307         lpfc_online(phba);
10308
10309         /* Log the current active interrupt mode */
10310         lpfc_log_intr_mode(phba, phba->intr_mode);
10311
10312         return 0;
10313 }
10314
10315 /**
10316  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10317  * @phba: pointer to lpfc hba data structure.
10318  *
10319  * This routine is called to prepare the SLI4 device for PCI slot recover. It
10320  * aborts all the outstanding SCSI I/Os to the pci device.
10321  **/
10322 static void
10323 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10324 {
10325         struct lpfc_sli *psli = &phba->sli;
10326         struct lpfc_sli_ring  *pring;
10327
10328         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10329                         "2828 PCI channel I/O abort preparing for recovery\n");
10330         /*
10331          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10332          * and let the SCSI mid-layer to retry them to recover.
10333          */
10334         pring = &psli->ring[psli->fcp_ring];
10335         lpfc_sli_abort_iocb_ring(phba, pring);
10336 }
10337
10338 /**
10339  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10340  * @phba: pointer to lpfc hba data structure.
10341  *
10342  * This routine is called to prepare the SLI4 device for PCI slot reset. It
10343  * disables the device interrupt and pci device, and aborts the internal FCP
10344  * pending I/Os.
10345  **/
10346 static void
10347 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10348 {
10349         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10350                         "2826 PCI channel disable preparing for reset\n");
10351
10352         /* Block any management I/Os to the device */
10353         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10354
10355         /* Block all SCSI devices' I/Os on the host */
10356         lpfc_scsi_dev_block(phba);
10357
10358         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10359         lpfc_sli_flush_fcp_rings(phba);
10360
10361         /* stop all timers */
10362         lpfc_stop_hba_timers(phba);
10363
10364         /* Disable interrupt and pci device */
10365         lpfc_sli4_disable_intr(phba);
10366         lpfc_sli4_queue_destroy(phba);
10367         pci_disable_device(phba->pcidev);
10368 }
10369
10370 /**
10371  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10372  * @phba: pointer to lpfc hba data structure.
10373  *
10374  * This routine is called to prepare the SLI4 device for PCI slot permanently
10375  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10376  * pending I/Os.
10377  **/
10378 static void
10379 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10380 {
10381         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10382                         "2827 PCI channel permanent disable for failure\n");
10383
10384         /* Block all SCSI devices' I/Os on the host */
10385         lpfc_scsi_dev_block(phba);
10386
10387         /* stop all timers */
10388         lpfc_stop_hba_timers(phba);
10389
10390         /* Clean up all driver's outstanding SCSI I/Os */
10391         lpfc_sli_flush_fcp_rings(phba);
10392 }
10393
10394 /**
10395  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10396  * @pdev: pointer to PCI device.
10397  * @state: the current PCI connection state.
10398  *
10399  * This routine is called from the PCI subsystem for error handling to device
10400  * with SLI-4 interface spec. This function is called by the PCI subsystem
10401  * after a PCI bus error affecting this device has been detected. When this
10402  * function is invoked, it will need to stop all the I/Os and interrupt(s)
10403  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10404  * for the PCI subsystem to perform proper recovery as desired.
10405  *
10406  * Return codes
10407  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10408  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10409  **/
10410 static pci_ers_result_t
10411 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10412 {
10413         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10414         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10415
10416         switch (state) {
10417         case pci_channel_io_normal:
10418                 /* Non-fatal error, prepare for recovery */
10419                 lpfc_sli4_prep_dev_for_recover(phba);
10420                 return PCI_ERS_RESULT_CAN_RECOVER;
10421         case pci_channel_io_frozen:
10422                 /* Fatal error, prepare for slot reset */
10423                 lpfc_sli4_prep_dev_for_reset(phba);
10424                 return PCI_ERS_RESULT_NEED_RESET;
10425         case pci_channel_io_perm_failure:
10426                 /* Permanent failure, prepare for device down */
10427                 lpfc_sli4_prep_dev_for_perm_failure(phba);
10428                 return PCI_ERS_RESULT_DISCONNECT;
10429         default:
10430                 /* Unknown state, prepare and request slot reset */
10431                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10432                                 "2825 Unknown PCI error state: x%x\n", state);
10433                 lpfc_sli4_prep_dev_for_reset(phba);
10434                 return PCI_ERS_RESULT_NEED_RESET;
10435         }
10436 }
10437
10438 /**
10439  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10440  * @pdev: pointer to PCI device.
10441  *
10442  * This routine is called from the PCI subsystem for error handling to device
10443  * with SLI-4 interface spec. It is called after PCI bus has been reset to
10444  * restart the PCI card from scratch, as if from a cold-boot. During the
10445  * PCI subsystem error recovery, after the driver returns
10446  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10447  * recovery and then call this routine before calling the .resume method to
10448  * recover the device. This function will initialize the HBA device, enable
10449  * the interrupt, but it will just put the HBA to offline state without
10450  * passing any I/O traffic.
10451  *
10452  * Return codes
10453  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10454  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10455  */
10456 static pci_ers_result_t
10457 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10458 {
10459         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10460         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10461         struct lpfc_sli *psli = &phba->sli;
10462         uint32_t intr_mode;
10463
10464         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10465         if (pci_enable_device_mem(pdev)) {
10466                 printk(KERN_ERR "lpfc: Cannot re-enable "
10467                         "PCI device after reset.\n");
10468                 return PCI_ERS_RESULT_DISCONNECT;
10469         }
10470
10471         pci_restore_state(pdev);
10472
10473         /*
10474          * As the new kernel behavior of pci_restore_state() API call clears
10475          * device saved_state flag, need to save the restored state again.
10476          */
10477         pci_save_state(pdev);
10478
10479         if (pdev->is_busmaster)
10480                 pci_set_master(pdev);
10481
10482         spin_lock_irq(&phba->hbalock);
10483         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10484         spin_unlock_irq(&phba->hbalock);
10485
10486         /* Configure and enable interrupt */
10487         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10488         if (intr_mode == LPFC_INTR_ERROR) {
10489                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10490                                 "2824 Cannot re-enable interrupt after "
10491                                 "slot reset.\n");
10492                 return PCI_ERS_RESULT_DISCONNECT;
10493         } else
10494                 phba->intr_mode = intr_mode;
10495
10496         /* Log the current active interrupt mode */
10497         lpfc_log_intr_mode(phba, phba->intr_mode);
10498
10499         return PCI_ERS_RESULT_RECOVERED;
10500 }
10501
10502 /**
10503  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10504  * @pdev: pointer to PCI device
10505  *
10506  * This routine is called from the PCI subsystem for error handling to device
10507  * with SLI-4 interface spec. It is called when kernel error recovery tells
10508  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10509  * error recovery. After this call, traffic can start to flow from this device
10510  * again.
10511  **/
10512 static void
10513 lpfc_io_resume_s4(struct pci_dev *pdev)
10514 {
10515         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10516         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10517
10518         /*
10519          * In case of slot reset, as function reset is performed through
10520          * mailbox command which needs DMA to be enabled, this operation
10521          * has to be moved to the io resume phase. Taking device offline
10522          * will perform the necessary cleanup.
10523          */
10524         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10525                 /* Perform device reset */
10526                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10527                 lpfc_offline(phba);
10528                 lpfc_sli_brdrestart(phba);
10529                 /* Bring the device back online */
10530                 lpfc_online(phba);
10531         }
10532
10533         /* Clean up Advanced Error Reporting (AER) if needed */
10534         if (phba->hba_flag & HBA_AER_ENABLED)
10535                 pci_cleanup_aer_uncorrect_error_status(pdev);
10536 }
10537
10538 /**
10539  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10540  * @pdev: pointer to PCI device
10541  * @pid: pointer to PCI device identifier
10542  *
10543  * This routine is to be registered to the kernel's PCI subsystem. When an
10544  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10545  * at PCI device-specific information of the device and driver to see if the
10546  * driver state that it can support this kind of device. If the match is
10547  * successful, the driver core invokes this routine. This routine dispatches
10548  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10549  * do all the initialization that it needs to do to handle the HBA device
10550  * properly.
10551  *
10552  * Return code
10553  *      0 - driver can claim the device
10554  *      negative value - driver can not claim the device
10555  **/
10556 static int
10557 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10558 {
10559         int rc;
10560         struct lpfc_sli_intf intf;
10561
10562         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10563                 return -ENODEV;
10564
10565         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10566             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10567                 rc = lpfc_pci_probe_one_s4(pdev, pid);
10568         else
10569                 rc = lpfc_pci_probe_one_s3(pdev, pid);
10570
10571         return rc;
10572 }
10573
10574 /**
10575  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10576  * @pdev: pointer to PCI device
10577  *
10578  * This routine is to be registered to the kernel's PCI subsystem. When an
10579  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10580  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10581  * remove routine, which will perform all the necessary cleanup for the
10582  * device to be removed from the PCI subsystem properly.
10583  **/
10584 static void
10585 lpfc_pci_remove_one(struct pci_dev *pdev)
10586 {
10587         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10588         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10589
10590         switch (phba->pci_dev_grp) {
10591         case LPFC_PCI_DEV_LP:
10592                 lpfc_pci_remove_one_s3(pdev);
10593                 break;
10594         case LPFC_PCI_DEV_OC:
10595                 lpfc_pci_remove_one_s4(pdev);
10596                 break;
10597         default:
10598                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10599                                 "1424 Invalid PCI device group: 0x%x\n",
10600                                 phba->pci_dev_grp);
10601                 break;
10602         }
10603         return;
10604 }
10605
10606 /**
10607  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10608  * @pdev: pointer to PCI device
10609  * @msg: power management message
10610  *
10611  * This routine is to be registered to the kernel's PCI subsystem to support
10612  * system Power Management (PM). When PM invokes this method, it dispatches
10613  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10614  * suspend the device.
10615  *
10616  * Return code
10617  *      0 - driver suspended the device
10618  *      Error otherwise
10619  **/
10620 static int
10621 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10622 {
10623         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10624         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10625         int rc = -ENODEV;
10626
10627         switch (phba->pci_dev_grp) {
10628         case LPFC_PCI_DEV_LP:
10629                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10630                 break;
10631         case LPFC_PCI_DEV_OC:
10632                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10633                 break;
10634         default:
10635                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10636                                 "1425 Invalid PCI device group: 0x%x\n",
10637                                 phba->pci_dev_grp);
10638                 break;
10639         }
10640         return rc;
10641 }
10642
10643 /**
10644  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10645  * @pdev: pointer to PCI device
10646  *
10647  * This routine is to be registered to the kernel's PCI subsystem to support
10648  * system Power Management (PM). When PM invokes this method, it dispatches
10649  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10650  * resume the device.
10651  *
10652  * Return code
10653  *      0 - driver suspended the device
10654  *      Error otherwise
10655  **/
10656 static int
10657 lpfc_pci_resume_one(struct pci_dev *pdev)
10658 {
10659         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10660         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10661         int rc = -ENODEV;
10662
10663         switch (phba->pci_dev_grp) {
10664         case LPFC_PCI_DEV_LP:
10665                 rc = lpfc_pci_resume_one_s3(pdev);
10666                 break;
10667         case LPFC_PCI_DEV_OC:
10668                 rc = lpfc_pci_resume_one_s4(pdev);
10669                 break;
10670         default:
10671                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10672                                 "1426 Invalid PCI device group: 0x%x\n",
10673                                 phba->pci_dev_grp);
10674                 break;
10675         }
10676         return rc;
10677 }
10678
10679 /**
10680  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10681  * @pdev: pointer to PCI device.
10682  * @state: the current PCI connection state.
10683  *
10684  * This routine is registered to the PCI subsystem for error handling. This
10685  * function is called by the PCI subsystem after a PCI bus error affecting
10686  * this device has been detected. When this routine is invoked, it dispatches
10687  * the action to the proper SLI-3 or SLI-4 device error detected handling
10688  * routine, which will perform the proper error detected operation.
10689  *
10690  * Return codes
10691  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10692  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10693  **/
10694 static pci_ers_result_t
10695 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10696 {
10697         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10698         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10699         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10700
10701         switch (phba->pci_dev_grp) {
10702         case LPFC_PCI_DEV_LP:
10703                 rc = lpfc_io_error_detected_s3(pdev, state);
10704                 break;
10705         case LPFC_PCI_DEV_OC:
10706                 rc = lpfc_io_error_detected_s4(pdev, state);
10707                 break;
10708         default:
10709                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10710                                 "1427 Invalid PCI device group: 0x%x\n",
10711                                 phba->pci_dev_grp);
10712                 break;
10713         }
10714         return rc;
10715 }
10716
10717 /**
10718  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10719  * @pdev: pointer to PCI device.
10720  *
10721  * This routine is registered to the PCI subsystem for error handling. This
10722  * function is called after PCI bus has been reset to restart the PCI card
10723  * from scratch, as if from a cold-boot. When this routine is invoked, it
10724  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10725  * routine, which will perform the proper device reset.
10726  *
10727  * Return codes
10728  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10729  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10730  **/
10731 static pci_ers_result_t
10732 lpfc_io_slot_reset(struct pci_dev *pdev)
10733 {
10734         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10735         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10736         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10737
10738         switch (phba->pci_dev_grp) {
10739         case LPFC_PCI_DEV_LP:
10740                 rc = lpfc_io_slot_reset_s3(pdev);
10741                 break;
10742         case LPFC_PCI_DEV_OC:
10743                 rc = lpfc_io_slot_reset_s4(pdev);
10744                 break;
10745         default:
10746                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10747                                 "1428 Invalid PCI device group: 0x%x\n",
10748                                 phba->pci_dev_grp);
10749                 break;
10750         }
10751         return rc;
10752 }
10753
10754 /**
10755  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10756  * @pdev: pointer to PCI device
10757  *
10758  * This routine is registered to the PCI subsystem for error handling. It
10759  * is called when kernel error recovery tells the lpfc driver that it is
10760  * OK to resume normal PCI operation after PCI bus error recovery. When
10761  * this routine is invoked, it dispatches the action to the proper SLI-3
10762  * or SLI-4 device io_resume routine, which will resume the device operation.
10763  **/
10764 static void
10765 lpfc_io_resume(struct pci_dev *pdev)
10766 {
10767         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10768         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10769
10770         switch (phba->pci_dev_grp) {
10771         case LPFC_PCI_DEV_LP:
10772                 lpfc_io_resume_s3(pdev);
10773                 break;
10774         case LPFC_PCI_DEV_OC:
10775                 lpfc_io_resume_s4(pdev);
10776                 break;
10777         default:
10778                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10779                                 "1429 Invalid PCI device group: 0x%x\n",
10780                                 phba->pci_dev_grp);
10781                 break;
10782         }
10783         return;
10784 }
10785
10786 static struct pci_device_id lpfc_id_table[] = {
10787         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
10788                 PCI_ANY_ID, PCI_ANY_ID, },
10789         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
10790                 PCI_ANY_ID, PCI_ANY_ID, },
10791         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
10792                 PCI_ANY_ID, PCI_ANY_ID, },
10793         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
10794                 PCI_ANY_ID, PCI_ANY_ID, },
10795         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
10796                 PCI_ANY_ID, PCI_ANY_ID, },
10797         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
10798                 PCI_ANY_ID, PCI_ANY_ID, },
10799         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
10800                 PCI_ANY_ID, PCI_ANY_ID, },
10801         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
10802                 PCI_ANY_ID, PCI_ANY_ID, },
10803         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
10804                 PCI_ANY_ID, PCI_ANY_ID, },
10805         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
10806                 PCI_ANY_ID, PCI_ANY_ID, },
10807         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
10808                 PCI_ANY_ID, PCI_ANY_ID, },
10809         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
10810                 PCI_ANY_ID, PCI_ANY_ID, },
10811         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
10812                 PCI_ANY_ID, PCI_ANY_ID, },
10813         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
10814                 PCI_ANY_ID, PCI_ANY_ID, },
10815         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
10816                 PCI_ANY_ID, PCI_ANY_ID, },
10817         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
10818                 PCI_ANY_ID, PCI_ANY_ID, },
10819         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
10820                 PCI_ANY_ID, PCI_ANY_ID, },
10821         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
10822                 PCI_ANY_ID, PCI_ANY_ID, },
10823         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
10824                 PCI_ANY_ID, PCI_ANY_ID, },
10825         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
10826                 PCI_ANY_ID, PCI_ANY_ID, },
10827         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
10828                 PCI_ANY_ID, PCI_ANY_ID, },
10829         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
10830                 PCI_ANY_ID, PCI_ANY_ID, },
10831         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
10832                 PCI_ANY_ID, PCI_ANY_ID, },
10833         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
10834                 PCI_ANY_ID, PCI_ANY_ID, },
10835         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
10836                 PCI_ANY_ID, PCI_ANY_ID, },
10837         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
10838                 PCI_ANY_ID, PCI_ANY_ID, },
10839         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
10840                 PCI_ANY_ID, PCI_ANY_ID, },
10841         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
10842                 PCI_ANY_ID, PCI_ANY_ID, },
10843         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
10844                 PCI_ANY_ID, PCI_ANY_ID, },
10845         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
10846                 PCI_ANY_ID, PCI_ANY_ID, },
10847         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
10848                 PCI_ANY_ID, PCI_ANY_ID, },
10849         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
10850                 PCI_ANY_ID, PCI_ANY_ID, },
10851         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
10852                 PCI_ANY_ID, PCI_ANY_ID, },
10853         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
10854                 PCI_ANY_ID, PCI_ANY_ID, },
10855         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
10856                 PCI_ANY_ID, PCI_ANY_ID, },
10857         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
10858                 PCI_ANY_ID, PCI_ANY_ID, },
10859         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
10860                 PCI_ANY_ID, PCI_ANY_ID, },
10861         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
10862                 PCI_ANY_ID, PCI_ANY_ID, },
10863         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
10864                 PCI_ANY_ID, PCI_ANY_ID, },
10865         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
10866                 PCI_ANY_ID, PCI_ANY_ID, },
10867         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
10868                 PCI_ANY_ID, PCI_ANY_ID, },
10869         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
10870                 PCI_ANY_ID, PCI_ANY_ID, },
10871         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
10872                 PCI_ANY_ID, PCI_ANY_ID, },
10873         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
10874                 PCI_ANY_ID, PCI_ANY_ID, },
10875         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
10876                 PCI_ANY_ID, PCI_ANY_ID, },
10877         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
10878                 PCI_ANY_ID, PCI_ANY_ID, },
10879         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
10880                 PCI_ANY_ID, PCI_ANY_ID, },
10881         { 0 }
10882 };
10883
10884 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
10885
10886 static const struct pci_error_handlers lpfc_err_handler = {
10887         .error_detected = lpfc_io_error_detected,
10888         .slot_reset = lpfc_io_slot_reset,
10889         .resume = lpfc_io_resume,
10890 };
10891
10892 static struct pci_driver lpfc_driver = {
10893         .name           = LPFC_DRIVER_NAME,
10894         .id_table       = lpfc_id_table,
10895         .probe          = lpfc_pci_probe_one,
10896         .remove         = lpfc_pci_remove_one,
10897         .suspend        = lpfc_pci_suspend_one,
10898         .resume         = lpfc_pci_resume_one,
10899         .err_handler    = &lpfc_err_handler,
10900 };
10901
10902 static const struct file_operations lpfc_mgmt_fop = {
10903         .owner = THIS_MODULE,
10904 };
10905
10906 static struct miscdevice lpfc_mgmt_dev = {
10907         .minor = MISC_DYNAMIC_MINOR,
10908         .name = "lpfcmgmt",
10909         .fops = &lpfc_mgmt_fop,
10910 };
10911
10912 /**
10913  * lpfc_init - lpfc module initialization routine
10914  *
10915  * This routine is to be invoked when the lpfc module is loaded into the
10916  * kernel. The special kernel macro module_init() is used to indicate the
10917  * role of this routine to the kernel as lpfc module entry point.
10918  *
10919  * Return codes
10920  *   0 - successful
10921  *   -ENOMEM - FC attach transport failed
10922  *   all others - failed
10923  */
10924 static int __init
10925 lpfc_init(void)
10926 {
10927         int cpu;
10928         int error = 0;
10929
10930         printk(LPFC_MODULE_DESC "\n");
10931         printk(LPFC_COPYRIGHT "\n");
10932
10933         error = misc_register(&lpfc_mgmt_dev);
10934         if (error)
10935                 printk(KERN_ERR "Could not register lpfcmgmt device, "
10936                         "misc_register returned with status %d", error);
10937
10938         if (lpfc_enable_npiv) {
10939                 lpfc_transport_functions.vport_create = lpfc_vport_create;
10940                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10941         }
10942         lpfc_transport_template =
10943                                 fc_attach_transport(&lpfc_transport_functions);
10944         if (lpfc_transport_template == NULL)
10945                 return -ENOMEM;
10946         if (lpfc_enable_npiv) {
10947                 lpfc_vport_transport_template =
10948                         fc_attach_transport(&lpfc_vport_transport_functions);
10949                 if (lpfc_vport_transport_template == NULL) {
10950                         fc_release_transport(lpfc_transport_template);
10951                         return -ENOMEM;
10952                 }
10953         }
10954
10955         /* Initialize in case vector mapping is needed */
10956         lpfc_used_cpu = NULL;
10957         lpfc_present_cpu = 0;
10958         for_each_present_cpu(cpu)
10959                 lpfc_present_cpu++;
10960
10961         error = pci_register_driver(&lpfc_driver);
10962         if (error) {
10963                 fc_release_transport(lpfc_transport_template);
10964                 if (lpfc_enable_npiv)
10965                         fc_release_transport(lpfc_vport_transport_template);
10966         }
10967
10968         return error;
10969 }
10970
10971 /**
10972  * lpfc_exit - lpfc module removal routine
10973  *
10974  * This routine is invoked when the lpfc module is removed from the kernel.
10975  * The special kernel macro module_exit() is used to indicate the role of
10976  * this routine to the kernel as lpfc module exit point.
10977  */
10978 static void __exit
10979 lpfc_exit(void)
10980 {
10981         misc_deregister(&lpfc_mgmt_dev);
10982         pci_unregister_driver(&lpfc_driver);
10983         fc_release_transport(lpfc_transport_template);
10984         if (lpfc_enable_npiv)
10985                 fc_release_transport(lpfc_vport_transport_template);
10986         if (_dump_buf_data) {
10987                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10988                                 "_dump_buf_data at 0x%p\n",
10989                                 (1L << _dump_buf_data_order), _dump_buf_data);
10990                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10991         }
10992
10993         if (_dump_buf_dif) {
10994                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10995                                 "_dump_buf_dif at 0x%p\n",
10996                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
10997                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10998         }
10999         kfree(lpfc_used_cpu);
11000 }
11001
11002 module_init(lpfc_init);
11003 module_exit(lpfc_exit);
11004 MODULE_LICENSE("GPL");
11005 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11006 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11007 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);