kernel/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) 2004-2015 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 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  84
  85 static struct scsi_transport_template *lpfc_transport_template = NULL;
  86 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  87 static DEFINE_IDR(lpfc_hba_index);
  88
  89 /**
  90  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  91  * @phba: pointer to lpfc hba data structure.
  92  *
  93  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  94  * mailbox command. It retrieves the revision information from the HBA and
  95  * collects the Vital Product Data (VPD) about the HBA for preparing the
  96  * configuration of the HBA.
  97  *
  98  * Return codes:
  99  *   0 - success.
 100  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 101  *   Any other value - indicates an error.
 102  **/
 103 int
 104 lpfc_config_port_prep(struct lpfc_hba *phba)
 105 {
 106         lpfc_vpd_t *vp = &phba->vpd;
 107         int i = 0, rc;
 108         LPFC_MBOXQ_t *pmb;
 109         MAILBOX_t *mb;
 110         char *lpfc_vpd_data = NULL;
 111         uint16_t offset = 0;
 112         static char licensed[56] =
 113                     "key unlock for use with gnu public licensed code only\0";
 114         static int init_key = 1;
 115
 116         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 117         if (!pmb) {
 118                 phba->link_state = LPFC_HBA_ERROR;
 119                 return -ENOMEM;
 120         }
 121
 122         mb = &pmb->u.mb;
 123         phba->link_state = LPFC_INIT_MBX_CMDS;
 124
 125         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 126                 if (init_key) {
 127                         uint32_t *ptext = (uint32_t *) licensed;
 128
 129                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 130                                 *ptext = cpu_to_be32(*ptext);
 131                         init_key = 0;
 132                 }
 133
 134                 lpfc_read_nv(phba, pmb);
 135                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 136                         sizeof (mb->un.varRDnvp.rsvd3));
 137                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 138                          sizeof (licensed));
 139
 140                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 141
 142                 if (rc != MBX_SUCCESS) {
 143                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 144                                         "0324 Config Port initialization "
 145                                         "error, mbxCmd x%x READ_NVPARM, "
 146                                         "mbxStatus x%x\n",
 147                                         mb->mbxCommand, mb->mbxStatus);
 148                         mempool_free(pmb, phba->mbox_mem_pool);
 149                         return -ERESTART;
 150                 }
 151                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 152                        sizeof(phba->wwnn));
 153                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 154                        sizeof(phba->wwpn));
 155         }
 156
 157         phba->sli3_options = 0x0;
 158
 159         /* Setup and issue mailbox READ REV command */
 160         lpfc_read_rev(phba, pmb);
 161         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 162         if (rc != MBX_SUCCESS) {
 163                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 164                                 "0439 Adapter failed to init, mbxCmd x%x "
 165                                 "READ_REV, mbxStatus x%x\n",
 166                                 mb->mbxCommand, mb->mbxStatus);
 167                 mempool_free( pmb, phba->mbox_mem_pool);
 168                 return -ERESTART;
 169         }
 170
 171
 172         /*
 173          * The value of rr must be 1 since the driver set the cv field to 1.
 174          * This setting requires the FW to set all revision fields.
 175          */
 176         if (mb->un.varRdRev.rr == 0) {
 177                 vp->rev.rBit = 0;
 178                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 179                                 "0440 Adapter failed to init, READ_REV has "
 180                                 "missing revision information.\n");
 181                 mempool_free(pmb, phba->mbox_mem_pool);
 182                 return -ERESTART;
 183         }
 184
 185         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 186                 mempool_free(pmb, phba->mbox_mem_pool);
 187                 return -EINVAL;
 188         }
 189
 190         /* Save information as VPD data */
 191         vp->rev.rBit = 1;
 192         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 193         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 194         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 195         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 196         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 197         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 198         vp->rev.smRev = mb->un.varRdRev.smRev;
 199         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 200         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 201         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 202         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 203         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 204         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 205         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 206         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 207
 208         /* If the sli feature level is less then 9, we must
 209          * tear down all RPIs and VPIs on link down if NPIV
 210          * is enabled.
 211          */
 212         if (vp->rev.feaLevelHigh < 9)
 213                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 214
 215         if (lpfc_is_LC_HBA(phba->pcidev->device))
 216                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 217                                                 sizeof (phba->RandomData));
 218
 219         /* Get adapter VPD information */
 220         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 221         if (!lpfc_vpd_data)
 222                 goto out_free_mbox;
 223         do {
 224                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 225                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 226
 227                 if (rc != MBX_SUCCESS) {
 228                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 229                                         "0441 VPD not present on adapter, "
 230                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 231                                         mb->mbxCommand, mb->mbxStatus);
 232                         mb->un.varDmp.word_cnt = 0;
 233                 }
 234                 /* dump mem may return a zero when finished or we got a
 235                  * mailbox error, either way we are done.
 236                  */
 237                 if (mb->un.varDmp.word_cnt == 0)
 238                         break;
 239                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 240                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 241                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 242                                       lpfc_vpd_data + offset,
 243                                       mb->un.varDmp.word_cnt);
 244                 offset += mb->un.varDmp.word_cnt;
 245         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 246         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 247
 248         kfree(lpfc_vpd_data);
 249 out_free_mbox:
 250         mempool_free(pmb, phba->mbox_mem_pool);
 251         return 0;
 252 }
 253
 254 /**
 255  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 256  * @phba: pointer to lpfc hba data structure.
 257  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 258  *
 259  * This is the completion handler for driver's configuring asynchronous event
 260  * mailbox command to the device. If the mailbox command returns successfully,
 261  * it will set internal async event support flag to 1; otherwise, it will
 262  * set internal async event support flag to 0.
 263  **/
 264 static void
 265 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 266 {
 267         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 268                 phba->temp_sensor_support = 1;
 269         else
 270                 phba->temp_sensor_support = 0;
 271         mempool_free(pmboxq, phba->mbox_mem_pool);
 272         return;
 273 }
 274
 275 /**
 276  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 277  * @phba: pointer to lpfc hba data structure.
 278  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 279  *
 280  * This is the completion handler for dump mailbox command for getting
 281  * wake up parameters. When this command complete, the response contain
 282  * Option rom version of the HBA. This function translate the version number
 283  * into a human readable string and store it in OptionROMVersion.
 284  **/
 285 static void
 286 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 287 {
 288         struct prog_id *prg;
 289         uint32_t prog_id_word;
 290         char dist = ' ';
 291         /* character array used for decoding dist type. */
 292         char dist_char[] = "nabx";
 293
 294         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 295                 mempool_free(pmboxq, phba->mbox_mem_pool);
 296                 return;
 297         }
 298
 299         prg = (struct prog_id *) &prog_id_word;
 300
 301         /* word 7 contain option rom version */
 302         prog_id_word = pmboxq->u.mb.un.varWords[7];
 303
 304         /* Decode the Option rom version word to a readable string */
 305         if (prg->dist < 4)
 306                 dist = dist_char[prg->dist];
 307
 308         if ((prg->dist == 3) && (prg->num == 0))
 309                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 310                         prg->ver, prg->rev, prg->lev);
 311         else
 312                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 313                         prg->ver, prg->rev, prg->lev,
 314                         dist, prg->num);
 315         mempool_free(pmboxq, phba->mbox_mem_pool);
 316         return;
 317 }
 318
 319 /**
 320  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 321  *      cfg_soft_wwnn, cfg_soft_wwpn
 322  * @vport: pointer to lpfc vport data structure.
 323  *
 324  *
 325  * Return codes
 326  *   None.
 327  **/
 328 void
 329 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 330 {
 331         /* If the soft name exists then update it using the service params */
 332         if (vport->phba->cfg_soft_wwnn)
 333                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 334                            vport->fc_sparam.nodeName.u.wwn);
 335         if (vport->phba->cfg_soft_wwpn)
 336                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 337                            vport->fc_sparam.portName.u.wwn);
 338
 339         /*
 340          * If the name is empty or there exists a soft name
 341          * then copy the service params name, otherwise use the fc name
 342          */
 343         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 344                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 345                         sizeof(struct lpfc_name));
 346         else
 347                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 348                         sizeof(struct lpfc_name));
 349
 350         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 351                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 352                         sizeof(struct lpfc_name));
 353         else
 354                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 355                         sizeof(struct lpfc_name));
 356 }
 357
 358 /**
 359  * lpfc_config_port_post - Perform lpfc initialization after config port
 360  * @phba: pointer to lpfc hba data structure.
 361  *
 362  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 363  * command call. It performs all internal resource and state setups on the
 364  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 365  * ELS ring timers, etc.
 366  *
 367  * Return codes
 368  *   0 - success.
 369  *   Any other value - error.
 370  **/
 371 int
 372 lpfc_config_port_post(struct lpfc_hba *phba)
 373 {
 374         struct lpfc_vport *vport = phba->pport;
 375         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 376         LPFC_MBOXQ_t *pmb;
 377         MAILBOX_t *mb;
 378         struct lpfc_dmabuf *mp;
 379         struct lpfc_sli *psli = &phba->sli;
 380         uint32_t status, timeout;
 381         int i, j;
 382         int rc;
 383
 384         spin_lock_irq(&phba->hbalock);
 385         /*
 386          * If the Config port completed correctly the HBA is not
 387          * over heated any more.
 388          */
 389         if (phba->over_temp_state == HBA_OVER_TEMP)
 390                 phba->over_temp_state = HBA_NORMAL_TEMP;
 391         spin_unlock_irq(&phba->hbalock);
 392
 393         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 394         if (!pmb) {
 395                 phba->link_state = LPFC_HBA_ERROR;
 396                 return -ENOMEM;
 397         }
 398         mb = &pmb->u.mb;
 399
 400         /* Get login parameters for NID.  */
 401         rc = lpfc_read_sparam(phba, pmb, 0);
 402         if (rc) {
 403                 mempool_free(pmb, phba->mbox_mem_pool);
 404                 return -ENOMEM;
 405         }
 406
 407         pmb->vport = vport;
 408         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 409                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 410                                 "0448 Adapter failed init, mbxCmd x%x "
 411                                 "READ_SPARM mbxStatus x%x\n",
 412                                 mb->mbxCommand, mb->mbxStatus);
 413                 phba->link_state = LPFC_HBA_ERROR;
 414                 mp = (struct lpfc_dmabuf *) pmb->context1;
 415                 mempool_free(pmb, phba->mbox_mem_pool);
 416                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 417                 kfree(mp);
 418                 return -EIO;
 419         }
 420
 421         mp = (struct lpfc_dmabuf *) pmb->context1;
 422
 423         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 424         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 425         kfree(mp);
 426         pmb->context1 = NULL;
 427         lpfc_update_vport_wwn(vport);
 428
 429         /* Update the fc_host data structures with new wwn. */
 430         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 431         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 432         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 433
 434         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 435         /* This should be consolidated into parse_vpd ? - mr */
 436         if (phba->SerialNumber[0] == 0) {
 437                 uint8_t *outptr;
 438
 439                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 440                 for (i = 0; i < 12; i++) {
 441                         status = *outptr++;
 442                         j = ((status & 0xf0) >> 4);
 443                         if (j <= 9)
 444                                 phba->SerialNumber[i] =
 445                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 446                         else
 447                                 phba->SerialNumber[i] =
 448                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 449                         i++;
 450                         j = (status & 0xf);
 451                         if (j <= 9)
 452                                 phba->SerialNumber[i] =
 453                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 454                         else
 455                                 phba->SerialNumber[i] =
 456                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 457                 }
 458         }
 459
 460         lpfc_read_config(phba, pmb);
 461         pmb->vport = vport;
 462         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 463                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 464                                 "0453 Adapter failed to init, mbxCmd x%x "
 465                                 "READ_CONFIG, mbxStatus x%x\n",
 466                                 mb->mbxCommand, mb->mbxStatus);
 467                 phba->link_state = LPFC_HBA_ERROR;
 468                 mempool_free( pmb, phba->mbox_mem_pool);
 469                 return -EIO;
 470         }
 471
 472         /* Check if the port is disabled */
 473         lpfc_sli_read_link_ste(phba);
 474
 475         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 476         i = (mb->un.varRdConfig.max_xri + 1);
 477         if (phba->cfg_hba_queue_depth > i) {
 478                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 479                                 "3359 HBA queue depth changed from %d to %d\n",
 480                                 phba->cfg_hba_queue_depth, i);
 481                 phba->cfg_hba_queue_depth = i;
 482         }
 483
 484         /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3)  */
 485         i = (mb->un.varRdConfig.max_xri >> 3);
 486         if (phba->pport->cfg_lun_queue_depth > i) {
 487                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 488                                 "3360 LUN queue depth changed from %d to %d\n",
 489                                 phba->pport->cfg_lun_queue_depth, i);
 490                 phba->pport->cfg_lun_queue_depth = i;
 491         }
 492
 493         phba->lmt = mb->un.varRdConfig.lmt;
 494
 495         /* Get the default values for Model Name and Description */
 496         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 497
 498         phba->link_state = LPFC_LINK_DOWN;
 499
 500         /* Only process IOCBs on ELS ring till hba_state is READY */
 501         if (psli->ring[psli->extra_ring].sli.sli3.cmdringaddr)
 502                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 503         if (psli->ring[psli->fcp_ring].sli.sli3.cmdringaddr)
 504                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 505         if (psli->ring[psli->next_ring].sli.sli3.cmdringaddr)
 506                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 507
 508         /* Post receive buffers for desired rings */
 509         if (phba->sli_rev != 3)
 510                 lpfc_post_rcv_buf(phba);
 511
 512         /*
 513          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 514          */
 515         if (phba->intr_type == MSIX) {
 516                 rc = lpfc_config_msi(phba, pmb);
 517                 if (rc) {
 518                         mempool_free(pmb, phba->mbox_mem_pool);
 519                         return -EIO;
 520                 }
 521                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 522                 if (rc != MBX_SUCCESS) {
 523                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 524                                         "0352 Config MSI mailbox command "
 525                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 526                                         pmb->u.mb.mbxCommand,
 527                                         pmb->u.mb.mbxStatus);
 528                         mempool_free(pmb, phba->mbox_mem_pool);
 529                         return -EIO;
 530                 }
 531         }
 532
 533         spin_lock_irq(&phba->hbalock);
 534         /* Initialize ERATT handling flag */
 535         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 536
 537         /* Enable appropriate host interrupts */
 538         if (lpfc_readl(phba->HCregaddr, &status)) {
 539                 spin_unlock_irq(&phba->hbalock);
 540                 return -EIO;
 541         }
 542         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 543         if (psli->num_rings > 0)
 544                 status |= HC_R0INT_ENA;
 545         if (psli->num_rings > 1)
 546                 status |= HC_R1INT_ENA;
 547         if (psli->num_rings > 2)
 548                 status |= HC_R2INT_ENA;
 549         if (psli->num_rings > 3)
 550                 status |= HC_R3INT_ENA;
 551
 552         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 553             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 554                 status &= ~(HC_R0INT_ENA);
 555
 556         writel(status, phba->HCregaddr);
 557         readl(phba->HCregaddr); /* flush */
 558         spin_unlock_irq(&phba->hbalock);
 559
 560         /* Set up ring-0 (ELS) timer */
 561         timeout = phba->fc_ratov * 2;
 562         mod_timer(&vport->els_tmofunc,
 563                   jiffies + msecs_to_jiffies(1000 * timeout));
 564         /* Set up heart beat (HB) timer */
 565         mod_timer(&phba->hb_tmofunc,
 566                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 567         phba->hb_outstanding = 0;
 568         phba->last_completion_time = jiffies;
 569         /* Set up error attention (ERATT) polling timer */
 570         mod_timer(&phba->eratt_poll,
 571                   jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
 572
 573         if (phba->hba_flag & LINK_DISABLED) {
 574                 lpfc_printf_log(phba,
 575                         KERN_ERR, LOG_INIT,
 576                         "2598 Adapter Link is disabled.\n");
 577                 lpfc_down_link(phba, pmb);
 578                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 579                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 580                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 581                         lpfc_printf_log(phba,
 582                         KERN_ERR, LOG_INIT,
 583                         "2599 Adapter failed to issue DOWN_LINK"
 584                         " mbox command rc 0x%x\n", rc);
 585
 586                         mempool_free(pmb, phba->mbox_mem_pool);
 587                         return -EIO;
 588                 }
 589         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 590                 mempool_free(pmb, phba->mbox_mem_pool);
 591                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 592                 if (rc)
 593                         return rc;
 594         }
 595         /* MBOX buffer will be freed in mbox compl */
 596         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 597         if (!pmb) {
 598                 phba->link_state = LPFC_HBA_ERROR;
 599                 return -ENOMEM;
 600         }
 601
 602         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 603         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 604         pmb->vport = phba->pport;
 605         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 606
 607         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 608                 lpfc_printf_log(phba,
 609                                 KERN_ERR,
 610                                 LOG_INIT,
 611                                 "0456 Adapter failed to issue "
 612                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 613                                 rc);
 614                 mempool_free(pmb, phba->mbox_mem_pool);
 615         }
 616
 617         /* Get Option rom version */
 618         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 619         if (!pmb) {
 620                 phba->link_state = LPFC_HBA_ERROR;
 621                 return -ENOMEM;
 622         }
 623
 624         lpfc_dump_wakeup_param(phba, pmb);
 625         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 626         pmb->vport = phba->pport;
 627         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 628
 629         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 630                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 631                                 "to get Option ROM version status x%x\n", rc);
 632                 mempool_free(pmb, phba->mbox_mem_pool);
 633         }
 634
 635         return 0;
 636 }
 637
 638 /**
 639  * lpfc_hba_init_link - Initialize the FC link
 640  * @phba: pointer to lpfc hba data structure.
 641  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 642  *
 643  * This routine will issue the INIT_LINK mailbox command call.
 644  * It is available to other drivers through the lpfc_hba data
 645  * structure for use as a delayed link up mechanism with the
 646  * module parameter lpfc_suppress_link_up.
 647  *
 648  * Return code
 649  *              0 - success
 650  *              Any other value - error
 651  **/
 652 static int
 653 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 654 {
 655         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 656 }
 657
 658 /**
 659  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 660  * @phba: pointer to lpfc hba data structure.
 661  * @fc_topology: desired fc topology.
 662  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 663  *
 664  * This routine will issue the INIT_LINK mailbox command call.
 665  * It is available to other drivers through the lpfc_hba data
 666  * structure for use as a delayed link up mechanism with the
 667  * module parameter lpfc_suppress_link_up.
 668  *
 669  * Return code
 670  *              0 - success
 671  *              Any other value - error
 672  **/
 673 int
 674 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 675                                uint32_t flag)
 676 {
 677         struct lpfc_vport *vport = phba->pport;
 678         LPFC_MBOXQ_t *pmb;
 679         MAILBOX_t *mb;
 680         int rc;
 681
 682         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 683         if (!pmb) {
 684                 phba->link_state = LPFC_HBA_ERROR;
 685                 return -ENOMEM;
 686         }
 687         mb = &pmb->u.mb;
 688         pmb->vport = vport;
 689
 690         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 691             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 692              !(phba->lmt & LMT_1Gb)) ||
 693             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 694              !(phba->lmt & LMT_2Gb)) ||
 695             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 696              !(phba->lmt & LMT_4Gb)) ||
 697             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 698              !(phba->lmt & LMT_8Gb)) ||
 699             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 700              !(phba->lmt & LMT_10Gb)) ||
 701             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 702              !(phba->lmt & LMT_16Gb)) ||
 703             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 704              !(phba->lmt & LMT_32Gb))) {
 705                 /* Reset link speed to auto */
 706                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 707                         "1302 Invalid speed for this board:%d "
 708                         "Reset link speed to auto.\n",
 709                         phba->cfg_link_speed);
 710                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 711         }
 712         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 713         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 714         if (phba->sli_rev < LPFC_SLI_REV4)
 715                 lpfc_set_loopback_flag(phba);
 716         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 717         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 718                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 719                         "0498 Adapter failed to init, mbxCmd x%x "
 720                         "INIT_LINK, mbxStatus x%x\n",
 721                         mb->mbxCommand, mb->mbxStatus);
 722                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 723                         /* Clear all interrupt enable conditions */
 724                         writel(0, phba->HCregaddr);
 725                         readl(phba->HCregaddr); /* flush */
 726                         /* Clear all pending interrupts */
 727                         writel(0xffffffff, phba->HAregaddr);
 728                         readl(phba->HAregaddr); /* flush */
 729                 }
 730                 phba->link_state = LPFC_HBA_ERROR;
 731                 if (rc != MBX_BUSY || flag == MBX_POLL)
 732                         mempool_free(pmb, phba->mbox_mem_pool);
 733                 return -EIO;
 734         }
 735         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 736         if (flag == MBX_POLL)
 737                 mempool_free(pmb, phba->mbox_mem_pool);
 738
 739         return 0;
 740 }
 741
 742 /**
 743  * lpfc_hba_down_link - this routine downs the FC link
 744  * @phba: pointer to lpfc hba data structure.
 745  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 746  *
 747  * This routine will issue the DOWN_LINK mailbox command call.
 748  * It is available to other drivers through the lpfc_hba data
 749  * structure for use to stop the link.
 750  *
 751  * Return code
 752  *              0 - success
 753  *              Any other value - error
 754  **/
 755 static int
 756 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 757 {
 758         LPFC_MBOXQ_t *pmb;
 759         int rc;
 760
 761         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 762         if (!pmb) {
 763                 phba->link_state = LPFC_HBA_ERROR;
 764                 return -ENOMEM;
 765         }
 766
 767         lpfc_printf_log(phba,
 768                 KERN_ERR, LOG_INIT,
 769                 "0491 Adapter Link is disabled.\n");
 770         lpfc_down_link(phba, pmb);
 771         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 772         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 773         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 774                 lpfc_printf_log(phba,
 775                 KERN_ERR, LOG_INIT,
 776                 "2522 Adapter failed to issue DOWN_LINK"
 777                 " mbox command rc 0x%x\n", rc);
 778
 779                 mempool_free(pmb, phba->mbox_mem_pool);
 780                 return -EIO;
 781         }
 782         if (flag == MBX_POLL)
 783                 mempool_free(pmb, phba->mbox_mem_pool);
 784
 785         return 0;
 786 }
 787
 788 /**
 789  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 790  * @phba: pointer to lpfc HBA data structure.
 791  *
 792  * This routine will do LPFC uninitialization before the HBA is reset when
 793  * bringing down the SLI Layer.
 794  *
 795  * Return codes
 796  *   0 - success.
 797  *   Any other value - error.
 798  **/
 799 int
 800 lpfc_hba_down_prep(struct lpfc_hba *phba)
 801 {
 802         struct lpfc_vport **vports;
 803         int i;
 804
 805         if (phba->sli_rev <= LPFC_SLI_REV3) {
 806                 /* Disable interrupts */
 807                 writel(0, phba->HCregaddr);
 808                 readl(phba->HCregaddr); /* flush */
 809         }
 810
 811         if (phba->pport->load_flag & FC_UNLOADING)
 812                 lpfc_cleanup_discovery_resources(phba->pport);
 813         else {
 814                 vports = lpfc_create_vport_work_array(phba);
 815                 if (vports != NULL)
 816                         for (i = 0; i <= phba->max_vports &&
 817                                 vports[i] != NULL; i++)
 818                                 lpfc_cleanup_discovery_resources(vports[i]);
 819                 lpfc_destroy_vport_work_array(phba, vports);
 820         }
 821         return 0;
 822 }
 823
 824 /**
 825  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 826  * rspiocb which got deferred
 827  *
 828  * @phba: pointer to lpfc HBA data structure.
 829  *
 830  * This routine will cleanup completed slow path events after HBA is reset
 831  * when bringing down the SLI Layer.
 832  *
 833  *
 834  * Return codes
 835  *   void.
 836  **/
 837 static void
 838 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 839 {
 840         struct lpfc_iocbq *rspiocbq;
 841         struct hbq_dmabuf *dmabuf;
 842         struct lpfc_cq_event *cq_event;
 843
 844         spin_lock_irq(&phba->hbalock);
 845         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 846         spin_unlock_irq(&phba->hbalock);
 847
 848         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 849                 /* Get the response iocb from the head of work queue */
 850                 spin_lock_irq(&phba->hbalock);
 851                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 852                                  cq_event, struct lpfc_cq_event, list);
 853                 spin_unlock_irq(&phba->hbalock);
 854
 855                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 856                 case CQE_CODE_COMPL_WQE:
 857                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 858                                                  cq_event);
 859                         lpfc_sli_release_iocbq(phba, rspiocbq);
 860                         break;
 861                 case CQE_CODE_RECEIVE:
 862                 case CQE_CODE_RECEIVE_V1:
 863                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 864                                               cq_event);
 865                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 866                 }
 867         }
 868 }
 869
 870 /**
 871  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 872  * @phba: pointer to lpfc HBA data structure.
 873  *
 874  * This routine will cleanup posted ELS buffers after the HBA is reset
 875  * when bringing down the SLI Layer.
 876  *
 877  *
 878  * Return codes
 879  *   void.
 880  **/
 881 static void
 882 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 883 {
 884         struct lpfc_sli *psli = &phba->sli;
 885         struct lpfc_sli_ring *pring;
 886         struct lpfc_dmabuf *mp, *next_mp;
 887         LIST_HEAD(buflist);
 888         int count;
 889
 890         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 891                 lpfc_sli_hbqbuf_free_all(phba);
 892         else {
 893                 /* Cleanup preposted buffers on the ELS ring */
 894                 pring = &psli->ring[LPFC_ELS_RING];
 895                 spin_lock_irq(&phba->hbalock);
 896                 list_splice_init(&pring->postbufq, &buflist);
 897                 spin_unlock_irq(&phba->hbalock);
 898
 899                 count = 0;
 900                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 901                         list_del(&mp->list);
 902                         count++;
 903                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 904                         kfree(mp);
 905                 }
 906
 907                 spin_lock_irq(&phba->hbalock);
 908                 pring->postbufq_cnt -= count;
 909                 spin_unlock_irq(&phba->hbalock);
 910         }
 911 }
 912
 913 /**
 914  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 915  * @phba: pointer to lpfc HBA data structure.
 916  *
 917  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 918  * down the SLI Layer.
 919  *
 920  * Return codes
 921  *   void
 922  **/
 923 static void
 924 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 925 {
 926         struct lpfc_sli *psli = &phba->sli;
 927         struct lpfc_sli_ring *pring;
 928         LIST_HEAD(completions);
 929         int i;
 930
 931         for (i = 0; i < psli->num_rings; i++) {
 932                 pring = &psli->ring[i];
 933                 if (phba->sli_rev >= LPFC_SLI_REV4)
 934                         spin_lock_irq(&pring->ring_lock);
 935                 else
 936                         spin_lock_irq(&phba->hbalock);
 937                 /* At this point in time the HBA is either reset or DOA. Either
 938                  * way, nothing should be on txcmplq as it will NEVER complete.
 939                  */
 940                 list_splice_init(&pring->txcmplq, &completions);
 941                 pring->txcmplq_cnt = 0;
 942
 943                 if (phba->sli_rev >= LPFC_SLI_REV4)
 944                         spin_unlock_irq(&pring->ring_lock);
 945                 else
 946                         spin_unlock_irq(&phba->hbalock);
 947
 948                 /* Cancel all the IOCBs from the completions list */
 949                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 950                                       IOERR_SLI_ABORTED);
 951                 lpfc_sli_abort_iocb_ring(phba, pring);
 952         }
 953 }
 954
 955 /**
 956  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 957         int i;
 958  * @phba: pointer to lpfc HBA data structure.
 959  *
 960  * This routine will do uninitialization after the HBA is reset when bring
 961  * down the SLI Layer.
 962  *
 963  * Return codes
 964  *   0 - success.
 965  *   Any other value - error.
 966  **/
 967 static int
 968 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 969 {
 970         lpfc_hba_free_post_buf(phba);
 971         lpfc_hba_clean_txcmplq(phba);
 972         return 0;
 973 }
 974
 975 /**
 976  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 977  * @phba: pointer to lpfc HBA data structure.
 978  *
 979  * This routine will do uninitialization after the HBA is reset when bring
 980  * down the SLI Layer.
 981  *
 982  * Return codes
 983  *   0 - success.
 984  *   Any other value - error.
 985  **/
 986 static int
 987 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 988 {
 989         struct lpfc_scsi_buf *psb, *psb_next;
 990         LIST_HEAD(aborts);
 991         unsigned long iflag = 0;
 992         struct lpfc_sglq *sglq_entry = NULL;
 993         struct lpfc_sli *psli = &phba->sli;
 994         struct lpfc_sli_ring *pring;
 995
 996         lpfc_hba_free_post_buf(phba);
 997         lpfc_hba_clean_txcmplq(phba);
 998         pring = &psli->ring[LPFC_ELS_RING];
 999
1000         /* At this point in time the HBA is either reset or DOA. Either
1001          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1002          * on the lpfc_sgl_list so that it can either be freed if the
1003          * driver is unloading or reposted if the driver is restarting
1004          * the port.
1005          */
1006         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
1007                                         /* scsl_buf_list */
1008         /* abts_sgl_list_lock required because worker thread uses this
1009          * list.
1010          */
1011         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
1012         list_for_each_entry(sglq_entry,
1013                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1014                 sglq_entry->state = SGL_FREED;
1015
1016         spin_lock(&pring->ring_lock);
1017         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1018                         &phba->sli4_hba.lpfc_sgl_list);
1019         spin_unlock(&pring->ring_lock);
1020         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
1021         /* abts_scsi_buf_list_lock required because worker thread uses this
1022          * list.
1023          */
1024         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1025         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
1026                         &aborts);
1027         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
1028         spin_unlock_irq(&phba->hbalock);
1029
1030         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1031                 psb->pCmd = NULL;
1032                 psb->status = IOSTAT_SUCCESS;
1033         }
1034         spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag);
1035         list_splice(&aborts, &phba->lpfc_scsi_buf_list_put);
1036         spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag);
1037
1038         lpfc_sli4_free_sp_events(phba);
1039         return 0;
1040 }
1041
1042 /**
1043  * lpfc_hba_down_post - Wrapper func for hba down post routine
1044  * @phba: pointer to lpfc HBA data structure.
1045  *
1046  * This routine wraps the actual SLI3 or SLI4 routine for performing
1047  * uninitialization after the HBA is reset when bring down the SLI Layer.
1048  *
1049  * Return codes
1050  *   0 - success.
1051  *   Any other value - error.
1052  **/
1053 int
1054 lpfc_hba_down_post(struct lpfc_hba *phba)
1055 {
1056         return (*phba->lpfc_hba_down_post)(phba);
1057 }
1058
1059 /**
1060  * lpfc_hb_timeout - The HBA-timer timeout handler
1061  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1062  *
1063  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1064  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1065  * work-port-events bitmap and the worker thread is notified. This timeout
1066  * event will be used by the worker thread to invoke the actual timeout
1067  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1068  * be performed in the timeout handler and the HBA timeout event bit shall
1069  * be cleared by the worker thread after it has taken the event bitmap out.
1070  **/
1071 static void
1072 lpfc_hb_timeout(unsigned long ptr)
1073 {
1074         struct lpfc_hba *phba;
1075         uint32_t tmo_posted;
1076         unsigned long iflag;
1077
1078         phba = (struct lpfc_hba *)ptr;
1079
1080         /* Check for heart beat timeout conditions */
1081         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1082         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1083         if (!tmo_posted)
1084                 phba->pport->work_port_events |= WORKER_HB_TMO;
1085         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1086
1087         /* Tell the worker thread there is work to do */
1088         if (!tmo_posted)
1089                 lpfc_worker_wake_up(phba);
1090         return;
1091 }
1092
1093 /**
1094  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1095  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
1096  *
1097  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1098  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1099  * work-port-events bitmap and the worker thread is notified. This timeout
1100  * event will be used by the worker thread to invoke the actual timeout
1101  * handler routine, lpfc_rrq_handler. Any periodical operations will
1102  * be performed in the timeout handler and the RRQ timeout event bit shall
1103  * be cleared by the worker thread after it has taken the event bitmap out.
1104  **/
1105 static void
1106 lpfc_rrq_timeout(unsigned long ptr)
1107 {
1108         struct lpfc_hba *phba;
1109         unsigned long iflag;
1110
1111         phba = (struct lpfc_hba *)ptr;
1112         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1113         if (!(phba->pport->load_flag & FC_UNLOADING))
1114                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1115         else
1116                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1117         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1118
1119         if (!(phba->pport->load_flag & FC_UNLOADING))
1120                 lpfc_worker_wake_up(phba);
1121 }
1122
1123 /**
1124  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1125  * @phba: pointer to lpfc hba data structure.
1126  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1127  *
1128  * This is the callback function to the lpfc heart-beat mailbox command.
1129  * If configured, the lpfc driver issues the heart-beat mailbox command to
1130  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1131  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1132  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1133  * heart-beat outstanding state. Once the mailbox command comes back and
1134  * no error conditions detected, the heart-beat mailbox command timer is
1135  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1136  * state is cleared for the next heart-beat. If the timer expired with the
1137  * heart-beat outstanding state set, the driver will put the HBA offline.
1138  **/
1139 static void
1140 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1141 {
1142         unsigned long drvr_flag;
1143
1144         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1145         phba->hb_outstanding = 0;
1146         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1147
1148         /* Check and reset heart-beat timer is necessary */
1149         mempool_free(pmboxq, phba->mbox_mem_pool);
1150         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1151                 !(phba->link_state == LPFC_HBA_ERROR) &&
1152                 !(phba->pport->load_flag & FC_UNLOADING))
1153                 mod_timer(&phba->hb_tmofunc,
1154                           jiffies +
1155                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1156         return;
1157 }
1158
1159 /**
1160  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1161  * @phba: pointer to lpfc hba data structure.
1162  *
1163  * This is the actual HBA-timer timeout handler to be invoked by the worker
1164  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1165  * handler performs any periodic operations needed for the device. If such
1166  * periodic event has already been attended to either in the interrupt handler
1167  * or by processing slow-ring or fast-ring events within the HBA-timer
1168  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1169  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1170  * is configured and there is no heart-beat mailbox command outstanding, a
1171  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1172  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1173  * to offline.
1174  **/
1175 void
1176 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1177 {
1178         struct lpfc_vport **vports;
1179         LPFC_MBOXQ_t *pmboxq;
1180         struct lpfc_dmabuf *buf_ptr;
1181         int retval, i;
1182         struct lpfc_sli *psli = &phba->sli;
1183         LIST_HEAD(completions);
1184
1185         vports = lpfc_create_vport_work_array(phba);
1186         if (vports != NULL)
1187                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1188                         lpfc_rcv_seq_check_edtov(vports[i]);
1189         lpfc_destroy_vport_work_array(phba, vports);
1190
1191         if ((phba->link_state == LPFC_HBA_ERROR) ||
1192                 (phba->pport->load_flag & FC_UNLOADING) ||
1193                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1194                 return;
1195
1196         spin_lock_irq(&phba->pport->work_port_lock);
1197
1198         if (time_after(phba->last_completion_time +
1199                         msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1200                         jiffies)) {
1201                 spin_unlock_irq(&phba->pport->work_port_lock);
1202                 if (!phba->hb_outstanding)
1203                         mod_timer(&phba->hb_tmofunc,
1204                                 jiffies +
1205                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1206                 else
1207                         mod_timer(&phba->hb_tmofunc,
1208                                 jiffies +
1209                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1210                 return;
1211         }
1212         spin_unlock_irq(&phba->pport->work_port_lock);
1213
1214         if (phba->elsbuf_cnt &&
1215                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1216                 spin_lock_irq(&phba->hbalock);
1217                 list_splice_init(&phba->elsbuf, &completions);
1218                 phba->elsbuf_cnt = 0;
1219                 phba->elsbuf_prev_cnt = 0;
1220                 spin_unlock_irq(&phba->hbalock);
1221
1222                 while (!list_empty(&completions)) {
1223                         list_remove_head(&completions, buf_ptr,
1224                                 struct lpfc_dmabuf, list);
1225                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1226                         kfree(buf_ptr);
1227                 }
1228         }
1229         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1230
1231         /* If there is no heart beat outstanding, issue a heartbeat command */
1232         if (phba->cfg_enable_hba_heartbeat) {
1233                 if (!phba->hb_outstanding) {
1234                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1235                                 (list_empty(&psli->mboxq))) {
1236                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1237                                                         GFP_KERNEL);
1238                                 if (!pmboxq) {
1239                                         mod_timer(&phba->hb_tmofunc,
1240                                                  jiffies +
1241                                                  msecs_to_jiffies(1000 *
1242                                                  LPFC_HB_MBOX_INTERVAL));
1243                                         return;
1244                                 }
1245
1246                                 lpfc_heart_beat(phba, pmboxq);
1247                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1248                                 pmboxq->vport = phba->pport;
1249                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1250                                                 MBX_NOWAIT);
1251
1252                                 if (retval != MBX_BUSY &&
1253                                         retval != MBX_SUCCESS) {
1254                                         mempool_free(pmboxq,
1255                                                         phba->mbox_mem_pool);
1256                                         mod_timer(&phba->hb_tmofunc,
1257                                                 jiffies +
1258                                                 msecs_to_jiffies(1000 *
1259                                                 LPFC_HB_MBOX_INTERVAL));
1260                                         return;
1261                                 }
1262                                 phba->skipped_hb = 0;
1263                                 phba->hb_outstanding = 1;
1264                         } else if (time_before_eq(phba->last_completion_time,
1265                                         phba->skipped_hb)) {
1266                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1267                                         "2857 Last completion time not "
1268                                         " updated in %d ms\n",
1269                                         jiffies_to_msecs(jiffies
1270                                                  - phba->last_completion_time));
1271                         } else
1272                                 phba->skipped_hb = jiffies;
1273
1274                         mod_timer(&phba->hb_tmofunc,
1275                                  jiffies +
1276                                  msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1277                         return;
1278                 } else {
1279                         /*
1280                         * If heart beat timeout called with hb_outstanding set
1281                         * we need to give the hb mailbox cmd a chance to
1282                         * complete or TMO.
1283                         */
1284                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1285                                         "0459 Adapter heartbeat still out"
1286                                         "standing:last compl time was %d ms.\n",
1287                                         jiffies_to_msecs(jiffies
1288                                                  - phba->last_completion_time));
1289                         mod_timer(&phba->hb_tmofunc,
1290                                 jiffies +
1291                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT));
1292                 }
1293         }
1294 }
1295
1296 /**
1297  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1298  * @phba: pointer to lpfc hba data structure.
1299  *
1300  * This routine is called to bring the HBA offline when HBA hardware error
1301  * other than Port Error 6 has been detected.
1302  **/
1303 static void
1304 lpfc_offline_eratt(struct lpfc_hba *phba)
1305 {
1306         struct lpfc_sli   *psli = &phba->sli;
1307
1308         spin_lock_irq(&phba->hbalock);
1309         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1310         spin_unlock_irq(&phba->hbalock);
1311         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1312
1313         lpfc_offline(phba);
1314         lpfc_reset_barrier(phba);
1315         spin_lock_irq(&phba->hbalock);
1316         lpfc_sli_brdreset(phba);
1317         spin_unlock_irq(&phba->hbalock);
1318         lpfc_hba_down_post(phba);
1319         lpfc_sli_brdready(phba, HS_MBRDY);
1320         lpfc_unblock_mgmt_io(phba);
1321         phba->link_state = LPFC_HBA_ERROR;
1322         return;
1323 }
1324
1325 /**
1326  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1327  * @phba: pointer to lpfc hba data structure.
1328  *
1329  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1330  * other than Port Error 6 has been detected.
1331  **/
1332 void
1333 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1334 {
1335         spin_lock_irq(&phba->hbalock);
1336         phba->link_state = LPFC_HBA_ERROR;
1337         spin_unlock_irq(&phba->hbalock);
1338
1339         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1340         lpfc_offline(phba);
1341         lpfc_hba_down_post(phba);
1342         lpfc_unblock_mgmt_io(phba);
1343 }
1344
1345 /**
1346  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1347  * @phba: pointer to lpfc hba data structure.
1348  *
1349  * This routine is invoked to handle the deferred HBA hardware error
1350  * conditions. This type of error is indicated by HBA by setting ER1
1351  * and another ER bit in the host status register. The driver will
1352  * wait until the ER1 bit clears before handling the error condition.
1353  **/
1354 static void
1355 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1356 {
1357         uint32_t old_host_status = phba->work_hs;
1358         struct lpfc_sli *psli = &phba->sli;
1359
1360         /* If the pci channel is offline, ignore possible errors,
1361          * since we cannot communicate with the pci card anyway.
1362          */
1363         if (pci_channel_offline(phba->pcidev)) {
1364                 spin_lock_irq(&phba->hbalock);
1365                 phba->hba_flag &= ~DEFER_ERATT;
1366                 spin_unlock_irq(&phba->hbalock);
1367                 return;
1368         }
1369
1370         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1371                 "0479 Deferred Adapter Hardware Error "
1372                 "Data: x%x x%x x%x\n",
1373                 phba->work_hs,
1374                 phba->work_status[0], phba->work_status[1]);
1375
1376         spin_lock_irq(&phba->hbalock);
1377         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1378         spin_unlock_irq(&phba->hbalock);
1379
1380
1381         /*
1382          * Firmware stops when it triggred erratt. That could cause the I/Os
1383          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1384          * SCSI layer retry it after re-establishing link.
1385          */
1386         lpfc_sli_abort_fcp_rings(phba);
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_WAIT);
1393         lpfc_offline(phba);
1394
1395         /* Wait for the ER1 bit to clear.*/
1396         while (phba->work_hs & HS_FFER1) {
1397                 msleep(100);
1398                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1399                         phba->work_hs = UNPLUG_ERR ;
1400                         break;
1401                 }
1402                 /* If driver is unloading let the worker thread continue */
1403                 if (phba->pport->load_flag & FC_UNLOADING) {
1404                         phba->work_hs = 0;
1405                         break;
1406                 }
1407         }
1408
1409         /*
1410          * This is to ptrotect against a race condition in which
1411          * first write to the host attention register clear the
1412          * host status register.
1413          */
1414         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1415                 phba->work_hs = old_host_status & ~HS_FFER1;
1416
1417         spin_lock_irq(&phba->hbalock);
1418         phba->hba_flag &= ~DEFER_ERATT;
1419         spin_unlock_irq(&phba->hbalock);
1420         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1421         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1422 }
1423
1424 static void
1425 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1426 {
1427         struct lpfc_board_event_header board_event;
1428         struct Scsi_Host *shost;
1429
1430         board_event.event_type = FC_REG_BOARD_EVENT;
1431         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1432         shost = lpfc_shost_from_vport(phba->pport);
1433         fc_host_post_vendor_event(shost, fc_get_event_number(),
1434                                   sizeof(board_event),
1435                                   (char *) &board_event,
1436                                   LPFC_NL_VENDOR_ID);
1437 }
1438
1439 /**
1440  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1441  * @phba: pointer to lpfc hba data structure.
1442  *
1443  * This routine is invoked to handle the following HBA hardware error
1444  * conditions:
1445  * 1 - HBA error attention interrupt
1446  * 2 - DMA ring index out of range
1447  * 3 - Mailbox command came back as unknown
1448  **/
1449 static void
1450 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1451 {
1452         struct lpfc_vport *vport = phba->pport;
1453         struct lpfc_sli   *psli = &phba->sli;
1454         uint32_t event_data;
1455         unsigned long temperature;
1456         struct temp_event temp_event_data;
1457         struct Scsi_Host  *shost;
1458
1459         /* If the pci channel is offline, ignore possible errors,
1460          * since we cannot communicate with the pci card anyway.
1461          */
1462         if (pci_channel_offline(phba->pcidev)) {
1463                 spin_lock_irq(&phba->hbalock);
1464                 phba->hba_flag &= ~DEFER_ERATT;
1465                 spin_unlock_irq(&phba->hbalock);
1466                 return;
1467         }
1468
1469         /* If resets are disabled then leave the HBA alone and return */
1470         if (!phba->cfg_enable_hba_reset)
1471                 return;
1472
1473         /* Send an internal error event to mgmt application */
1474         lpfc_board_errevt_to_mgmt(phba);
1475
1476         if (phba->hba_flag & DEFER_ERATT)
1477                 lpfc_handle_deferred_eratt(phba);
1478
1479         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1480                 if (phba->work_hs & HS_FFER6)
1481                         /* Re-establishing Link */
1482                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1483                                         "1301 Re-establishing Link "
1484                                         "Data: x%x x%x x%x\n",
1485                                         phba->work_hs, phba->work_status[0],
1486                                         phba->work_status[1]);
1487                 if (phba->work_hs & HS_FFER8)
1488                         /* Device Zeroization */
1489                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1490                                         "2861 Host Authentication device "
1491                                         "zeroization Data:x%x x%x x%x\n",
1492                                         phba->work_hs, phba->work_status[0],
1493                                         phba->work_status[1]);
1494
1495                 spin_lock_irq(&phba->hbalock);
1496                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1497                 spin_unlock_irq(&phba->hbalock);
1498
1499                 /*
1500                 * Firmware stops when it triggled erratt with HS_FFER6.
1501                 * That could cause the I/Os dropped by the firmware.
1502                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1503                 * retry it after re-establishing link.
1504                 */
1505                 lpfc_sli_abort_fcp_rings(phba);
1506
1507                 /*
1508                  * There was a firmware error.  Take the hba offline and then
1509                  * attempt to restart it.
1510                  */
1511                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1512                 lpfc_offline(phba);
1513                 lpfc_sli_brdrestart(phba);
1514                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1515                         lpfc_unblock_mgmt_io(phba);
1516                         return;
1517                 }
1518                 lpfc_unblock_mgmt_io(phba);
1519         } else if (phba->work_hs & HS_CRIT_TEMP) {
1520                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1521                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1522                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1523                 temp_event_data.data = (uint32_t)temperature;
1524
1525                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1526                                 "0406 Adapter maximum temperature exceeded "
1527                                 "(%ld), taking this port offline "
1528                                 "Data: x%x x%x x%x\n",
1529                                 temperature, phba->work_hs,
1530                                 phba->work_status[0], phba->work_status[1]);
1531
1532                 shost = lpfc_shost_from_vport(phba->pport);
1533                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1534                                           sizeof(temp_event_data),
1535                                           (char *) &temp_event_data,
1536                                           SCSI_NL_VID_TYPE_PCI
1537                                           | PCI_VENDOR_ID_EMULEX);
1538
1539                 spin_lock_irq(&phba->hbalock);
1540                 phba->over_temp_state = HBA_OVER_TEMP;
1541                 spin_unlock_irq(&phba->hbalock);
1542                 lpfc_offline_eratt(phba);
1543
1544         } else {
1545                 /* The if clause above forces this code path when the status
1546                  * failure is a value other than FFER6. Do not call the offline
1547                  * twice. This is the adapter hardware error path.
1548                  */
1549                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1550                                 "0457 Adapter Hardware Error "
1551                                 "Data: x%x x%x x%x\n",
1552                                 phba->work_hs,
1553                                 phba->work_status[0], phba->work_status[1]);
1554
1555                 event_data = FC_REG_DUMP_EVENT;
1556                 shost = lpfc_shost_from_vport(vport);
1557                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1558                                 sizeof(event_data), (char *) &event_data,
1559                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1560
1561                 lpfc_offline_eratt(phba);
1562         }
1563         return;
1564 }
1565
1566 /**
1567  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1568  * @phba: pointer to lpfc hba data structure.
1569  * @mbx_action: flag for mailbox shutdown action.
1570  *
1571  * This routine is invoked to perform an SLI4 port PCI function reset in
1572  * response to port status register polling attention. It waits for port
1573  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1574  * During this process, interrupt vectors are freed and later requested
1575  * for handling possible port resource change.
1576  **/
1577 static int
1578 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1579                             bool en_rn_msg)
1580 {
1581         int rc;
1582         uint32_t intr_mode;
1583
1584         /*
1585          * On error status condition, driver need to wait for port
1586          * ready before performing reset.
1587          */
1588         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1589         if (!rc) {
1590                 /* need reset: attempt for port recovery */
1591                 if (en_rn_msg)
1592                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1593                                         "2887 Reset Needed: Attempting Port "
1594                                         "Recovery...\n");
1595                 lpfc_offline_prep(phba, mbx_action);
1596                 lpfc_offline(phba);
1597                 /* release interrupt for possible resource change */
1598                 lpfc_sli4_disable_intr(phba);
1599                 lpfc_sli_brdrestart(phba);
1600                 /* request and enable interrupt */
1601                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1602                 if (intr_mode == LPFC_INTR_ERROR) {
1603                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1604                                         "3175 Failed to enable interrupt\n");
1605                         return -EIO;
1606                 } else {
1607                         phba->intr_mode = intr_mode;
1608                 }
1609                 rc = lpfc_online(phba);
1610                 if (rc == 0)
1611                         lpfc_unblock_mgmt_io(phba);
1612         }
1613         return rc;
1614 }
1615
1616 /**
1617  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1618  * @phba: pointer to lpfc hba data structure.
1619  *
1620  * This routine is invoked to handle the SLI4 HBA hardware error attention
1621  * conditions.
1622  **/
1623 static void
1624 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1625 {
1626         struct lpfc_vport *vport = phba->pport;
1627         uint32_t event_data;
1628         struct Scsi_Host *shost;
1629         uint32_t if_type;
1630         struct lpfc_register portstat_reg = {0};
1631         uint32_t reg_err1, reg_err2;
1632         uint32_t uerrlo_reg, uemasklo_reg;
1633         uint32_t pci_rd_rc1, pci_rd_rc2;
1634         bool en_rn_msg = true;
1635         struct temp_event temp_event_data;
1636         int rc;
1637
1638         /* If the pci channel is offline, ignore possible errors, since
1639          * we cannot communicate with the pci card anyway.
1640          */
1641         if (pci_channel_offline(phba->pcidev))
1642                 return;
1643
1644         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1645         switch (if_type) {
1646         case LPFC_SLI_INTF_IF_TYPE_0:
1647                 pci_rd_rc1 = lpfc_readl(
1648                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1649                                 &uerrlo_reg);
1650                 pci_rd_rc2 = lpfc_readl(
1651                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1652                                 &uemasklo_reg);
1653                 /* consider PCI bus read error as pci_channel_offline */
1654                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1655                         return;
1656                 lpfc_sli4_offline_eratt(phba);
1657                 break;
1658
1659         case LPFC_SLI_INTF_IF_TYPE_2:
1660                 pci_rd_rc1 = lpfc_readl(
1661                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1662                                 &portstat_reg.word0);
1663                 /* consider PCI bus read error as pci_channel_offline */
1664                 if (pci_rd_rc1 == -EIO) {
1665                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1666                                 "3151 PCI bus read access failure: x%x\n",
1667                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1668                         return;
1669                 }
1670                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1671                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1672                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1673                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1674                                 "2889 Port Overtemperature event, "
1675                                 "taking port offline Data: x%x x%x\n",
1676                                 reg_err1, reg_err2);
1677
1678                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1679                         temp_event_data.event_code = LPFC_CRIT_TEMP;
1680                         temp_event_data.data = 0xFFFFFFFF;
1681
1682                         shost = lpfc_shost_from_vport(phba->pport);
1683                         fc_host_post_vendor_event(shost, fc_get_event_number(),
1684                                                   sizeof(temp_event_data),
1685                                                   (char *)&temp_event_data,
1686                                                   SCSI_NL_VID_TYPE_PCI
1687                                                   | PCI_VENDOR_ID_EMULEX);
1688
1689                         spin_lock_irq(&phba->hbalock);
1690                         phba->over_temp_state = HBA_OVER_TEMP;
1691                         spin_unlock_irq(&phba->hbalock);
1692                         lpfc_sli4_offline_eratt(phba);
1693                         return;
1694                 }
1695                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1696                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
1697                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1698                                         "3143 Port Down: Firmware Update "
1699                                         "Detected\n");
1700                         en_rn_msg = false;
1701                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1702                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1703                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1704                                         "3144 Port Down: Debug Dump\n");
1705                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1706                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1707                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1708                                         "3145 Port Down: Provisioning\n");
1709
1710                 /* If resets are disabled then leave the HBA alone and return */
1711                 if (!phba->cfg_enable_hba_reset)
1712                         return;
1713
1714                 /* Check port status register for function reset */
1715                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
1716                                 en_rn_msg);
1717                 if (rc == 0) {
1718                         /* don't report event on forced debug dump */
1719                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1720                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1721                                 return;
1722                         else
1723                                 break;
1724                 }
1725                 /* fall through for not able to recover */
1726                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1727                                 "3152 Unrecoverable error, bring the port "
1728                                 "offline\n");
1729                 lpfc_sli4_offline_eratt(phba);
1730                 break;
1731         case LPFC_SLI_INTF_IF_TYPE_1:
1732         default:
1733                 break;
1734         }
1735         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1736                         "3123 Report dump event to upper layer\n");
1737         /* Send an internal error event to mgmt application */
1738         lpfc_board_errevt_to_mgmt(phba);
1739
1740         event_data = FC_REG_DUMP_EVENT;
1741         shost = lpfc_shost_from_vport(vport);
1742         fc_host_post_vendor_event(shost, fc_get_event_number(),
1743                                   sizeof(event_data), (char *) &event_data,
1744                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1745 }
1746
1747 /**
1748  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1749  * @phba: pointer to lpfc HBA data structure.
1750  *
1751  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1752  * routine from the API jump table function pointer from the lpfc_hba struct.
1753  *
1754  * Return codes
1755  *   0 - success.
1756  *   Any other value - error.
1757  **/
1758 void
1759 lpfc_handle_eratt(struct lpfc_hba *phba)
1760 {
1761         (*phba->lpfc_handle_eratt)(phba);
1762 }
1763
1764 /**
1765  * lpfc_handle_latt - The HBA link event handler
1766  * @phba: pointer to lpfc hba data structure.
1767  *
1768  * This routine is invoked from the worker thread to handle a HBA host
1769  * attention link event.
1770  **/
1771 void
1772 lpfc_handle_latt(struct lpfc_hba *phba)
1773 {
1774         struct lpfc_vport *vport = phba->pport;
1775         struct lpfc_sli   *psli = &phba->sli;
1776         LPFC_MBOXQ_t *pmb;
1777         volatile uint32_t control;
1778         struct lpfc_dmabuf *mp;
1779         int rc = 0;
1780
1781         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1782         if (!pmb) {
1783                 rc = 1;
1784                 goto lpfc_handle_latt_err_exit;
1785         }
1786
1787         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1788         if (!mp) {
1789                 rc = 2;
1790                 goto lpfc_handle_latt_free_pmb;
1791         }
1792
1793         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1794         if (!mp->virt) {
1795                 rc = 3;
1796                 goto lpfc_handle_latt_free_mp;
1797         }
1798
1799         /* Cleanup any outstanding ELS commands */
1800         lpfc_els_flush_all_cmd(phba);
1801
1802         psli->slistat.link_event++;
1803         lpfc_read_topology(phba, pmb, mp);
1804         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1805         pmb->vport = vport;
1806         /* Block ELS IOCBs until we have processed this mbox command */
1807         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1808         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1809         if (rc == MBX_NOT_FINISHED) {
1810                 rc = 4;
1811                 goto lpfc_handle_latt_free_mbuf;
1812         }
1813
1814         /* Clear Link Attention in HA REG */
1815         spin_lock_irq(&phba->hbalock);
1816         writel(HA_LATT, phba->HAregaddr);
1817         readl(phba->HAregaddr); /* flush */
1818         spin_unlock_irq(&phba->hbalock);
1819
1820         return;
1821
1822 lpfc_handle_latt_free_mbuf:
1823         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1824         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1825 lpfc_handle_latt_free_mp:
1826         kfree(mp);
1827 lpfc_handle_latt_free_pmb:
1828         mempool_free(pmb, phba->mbox_mem_pool);
1829 lpfc_handle_latt_err_exit:
1830         /* Enable Link attention interrupts */
1831         spin_lock_irq(&phba->hbalock);
1832         psli->sli_flag |= LPFC_PROCESS_LA;
1833         control = readl(phba->HCregaddr);
1834         control |= HC_LAINT_ENA;
1835         writel(control, phba->HCregaddr);
1836         readl(phba->HCregaddr); /* flush */
1837
1838         /* Clear Link Attention in HA REG */
1839         writel(HA_LATT, phba->HAregaddr);
1840         readl(phba->HAregaddr); /* flush */
1841         spin_unlock_irq(&phba->hbalock);
1842         lpfc_linkdown(phba);
1843         phba->link_state = LPFC_HBA_ERROR;
1844
1845         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1846                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1847
1848         return;
1849 }
1850
1851 /**
1852  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1853  * @phba: pointer to lpfc hba data structure.
1854  * @vpd: pointer to the vital product data.
1855  * @len: length of the vital product data in bytes.
1856  *
1857  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1858  * an array of characters. In this routine, the ModelName, ProgramType, and
1859  * ModelDesc, etc. fields of the phba data structure will be populated.
1860  *
1861  * Return codes
1862  *   0 - pointer to the VPD passed in is NULL
1863  *   1 - success
1864  **/
1865 int
1866 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1867 {
1868         uint8_t lenlo, lenhi;
1869         int Length;
1870         int i, j;
1871         int finished = 0;
1872         int index = 0;
1873
1874         if (!vpd)
1875                 return 0;
1876
1877         /* Vital Product */
1878         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1879                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1880                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1881                         (uint32_t) vpd[3]);
1882         while (!finished && (index < (len - 4))) {
1883                 switch (vpd[index]) {
1884                 case 0x82:
1885                 case 0x91:
1886                         index += 1;
1887                         lenlo = vpd[index];
1888                         index += 1;
1889                         lenhi = vpd[index];
1890                         index += 1;
1891                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1892                         index += i;
1893                         break;
1894                 case 0x90:
1895                         index += 1;
1896                         lenlo = vpd[index];
1897                         index += 1;
1898                         lenhi = vpd[index];
1899                         index += 1;
1900                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1901                         if (Length > len - index)
1902                                 Length = len - index;
1903                         while (Length > 0) {
1904                         /* Look for Serial Number */
1905                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1906                                 index += 2;
1907                                 i = vpd[index];
1908                                 index += 1;
1909                                 j = 0;
1910                                 Length -= (3+i);
1911                                 while(i--) {
1912                                         phba->SerialNumber[j++] = vpd[index++];
1913                                         if (j == 31)
1914                                                 break;
1915                                 }
1916                                 phba->SerialNumber[j] = 0;
1917                                 continue;
1918                         }
1919                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1920                                 phba->vpd_flag |= VPD_MODEL_DESC;
1921                                 index += 2;
1922                                 i = vpd[index];
1923                                 index += 1;
1924                                 j = 0;
1925                                 Length -= (3+i);
1926                                 while(i--) {
1927                                         phba->ModelDesc[j++] = vpd[index++];
1928                                         if (j == 255)
1929                                                 break;
1930                                 }
1931                                 phba->ModelDesc[j] = 0;
1932                                 continue;
1933                         }
1934                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1935                                 phba->vpd_flag |= VPD_MODEL_NAME;
1936                                 index += 2;
1937                                 i = vpd[index];
1938                                 index += 1;
1939                                 j = 0;
1940                                 Length -= (3+i);
1941                                 while(i--) {
1942                                         phba->ModelName[j++] = vpd[index++];
1943                                         if (j == 79)
1944                                                 break;
1945                                 }
1946                                 phba->ModelName[j] = 0;
1947                                 continue;
1948                         }
1949                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1950                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1951                                 index += 2;
1952                                 i = vpd[index];
1953                                 index += 1;
1954                                 j = 0;
1955                                 Length -= (3+i);
1956                                 while(i--) {
1957                                         phba->ProgramType[j++] = vpd[index++];
1958                                         if (j == 255)
1959                                                 break;
1960                                 }
1961                                 phba->ProgramType[j] = 0;
1962                                 continue;
1963                         }
1964                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1965                                 phba->vpd_flag |= VPD_PORT;
1966                                 index += 2;
1967                                 i = vpd[index];
1968                                 index += 1;
1969                                 j = 0;
1970                                 Length -= (3+i);
1971                                 while(i--) {
1972                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1973                                             (phba->sli4_hba.pport_name_sta ==
1974                                              LPFC_SLI4_PPNAME_GET)) {
1975                                                 j++;
1976                                                 index++;
1977                                         } else
1978                                                 phba->Port[j++] = vpd[index++];
1979                                         if (j == 19)
1980                                                 break;
1981                                 }
1982                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1983                                     (phba->sli4_hba.pport_name_sta ==
1984                                      LPFC_SLI4_PPNAME_NON))
1985                                         phba->Port[j] = 0;
1986                                 continue;
1987                         }
1988                         else {
1989                                 index += 2;
1990                                 i = vpd[index];
1991                                 index += 1;
1992                                 index += i;
1993                                 Length -= (3 + i);
1994                         }
1995                 }
1996                 finished = 0;
1997                 break;
1998                 case 0x78:
1999                         finished = 1;
2000                         break;
2001                 default:
2002                         index ++;
2003                         break;
2004                 }
2005         }
2006
2007         return(1);
2008 }
2009
2010 /**
2011  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2012  * @phba: pointer to lpfc hba data structure.
2013  * @mdp: pointer to the data structure to hold the derived model name.
2014  * @descp: pointer to the data structure to hold the derived description.
2015  *
2016  * This routine retrieves HBA's description based on its registered PCI device
2017  * ID. The @descp passed into this function points to an array of 256 chars. It
2018  * shall be returned with the model name, maximum speed, and the host bus type.
2019  * The @mdp passed into this function points to an array of 80 chars. When the
2020  * function returns, the @mdp will be filled with the model name.
2021  **/
2022 static void
2023 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2024 {
2025         lpfc_vpd_t *vp;
2026         uint16_t dev_id = phba->pcidev->device;
2027         int max_speed;
2028         int GE = 0;
2029         int oneConnect = 0; /* default is not a oneConnect */
2030         struct {
2031                 char *name;
2032                 char *bus;
2033                 char *function;
2034         } m = {"<Unknown>", "", ""};
2035
2036         if (mdp && mdp[0] != '\0'
2037                 && descp && descp[0] != '\0')
2038                 return;
2039
2040         if (phba->lmt & LMT_32Gb)
2041                 max_speed = 32;
2042         else if (phba->lmt & LMT_16Gb)
2043                 max_speed = 16;
2044         else if (phba->lmt & LMT_10Gb)
2045                 max_speed = 10;
2046         else if (phba->lmt & LMT_8Gb)
2047                 max_speed = 8;
2048         else if (phba->lmt & LMT_4Gb)
2049                 max_speed = 4;
2050         else if (phba->lmt & LMT_2Gb)
2051                 max_speed = 2;
2052         else if (phba->lmt & LMT_1Gb)
2053                 max_speed = 1;
2054         else
2055                 max_speed = 0;
2056
2057         vp = &phba->vpd;
2058
2059         switch (dev_id) {
2060         case PCI_DEVICE_ID_FIREFLY:
2061                 m = (typeof(m)){"LP6000", "PCI",
2062                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2063                 break;
2064         case PCI_DEVICE_ID_SUPERFLY:
2065                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2066                         m = (typeof(m)){"LP7000", "PCI", ""};
2067                 else
2068                         m = (typeof(m)){"LP7000E", "PCI", ""};
2069                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2070                 break;
2071         case PCI_DEVICE_ID_DRAGONFLY:
2072                 m = (typeof(m)){"LP8000", "PCI",
2073                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2074                 break;
2075         case PCI_DEVICE_ID_CENTAUR:
2076                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2077                         m = (typeof(m)){"LP9002", "PCI", ""};
2078                 else
2079                         m = (typeof(m)){"LP9000", "PCI", ""};
2080                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2081                 break;
2082         case PCI_DEVICE_ID_RFLY:
2083                 m = (typeof(m)){"LP952", "PCI",
2084                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2085                 break;
2086         case PCI_DEVICE_ID_PEGASUS:
2087                 m = (typeof(m)){"LP9802", "PCI-X",
2088                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2089                 break;
2090         case PCI_DEVICE_ID_THOR:
2091                 m = (typeof(m)){"LP10000", "PCI-X",
2092                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2093                 break;
2094         case PCI_DEVICE_ID_VIPER:
2095                 m = (typeof(m)){"LPX1000",  "PCI-X",
2096                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2097                 break;
2098         case PCI_DEVICE_ID_PFLY:
2099                 m = (typeof(m)){"LP982", "PCI-X",
2100                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2101                 break;
2102         case PCI_DEVICE_ID_TFLY:
2103                 m = (typeof(m)){"LP1050", "PCI-X",
2104                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2105                 break;
2106         case PCI_DEVICE_ID_HELIOS:
2107                 m = (typeof(m)){"LP11000", "PCI-X2",
2108                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2109                 break;
2110         case PCI_DEVICE_ID_HELIOS_SCSP:
2111                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2112                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2113                 break;
2114         case PCI_DEVICE_ID_HELIOS_DCSP:
2115                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2116                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2117                 break;
2118         case PCI_DEVICE_ID_NEPTUNE:
2119                 m = (typeof(m)){"LPe1000", "PCIe",
2120                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2121                 break;
2122         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2123                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2124                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2125                 break;
2126         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2127                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2128                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2129                 break;
2130         case PCI_DEVICE_ID_BMID:
2131                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2132                 break;
2133         case PCI_DEVICE_ID_BSMB:
2134                 m = (typeof(m)){"LP111", "PCI-X2",
2135                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2136                 break;
2137         case PCI_DEVICE_ID_ZEPHYR:
2138                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2139                 break;
2140         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2141                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2142                 break;
2143         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2144                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2145                 GE = 1;
2146                 break;
2147         case PCI_DEVICE_ID_ZMID:
2148                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2149                 break;
2150         case PCI_DEVICE_ID_ZSMB:
2151                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2152                 break;
2153         case PCI_DEVICE_ID_LP101:
2154                 m = (typeof(m)){"LP101", "PCI-X",
2155                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2156                 break;
2157         case PCI_DEVICE_ID_LP10000S:
2158                 m = (typeof(m)){"LP10000-S", "PCI",
2159                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2160                 break;
2161         case PCI_DEVICE_ID_LP11000S:
2162                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2163                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2164                 break;
2165         case PCI_DEVICE_ID_LPE11000S:
2166                 m = (typeof(m)){"LPe11000-S", "PCIe",
2167                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2168                 break;
2169         case PCI_DEVICE_ID_SAT:
2170                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2171                 break;
2172         case PCI_DEVICE_ID_SAT_MID:
2173                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2174                 break;
2175         case PCI_DEVICE_ID_SAT_SMB:
2176                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2177                 break;
2178         case PCI_DEVICE_ID_SAT_DCSP:
2179                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2180                 break;
2181         case PCI_DEVICE_ID_SAT_SCSP:
2182                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2183                 break;
2184         case PCI_DEVICE_ID_SAT_S:
2185                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2186                 break;
2187         case PCI_DEVICE_ID_HORNET:
2188                 m = (typeof(m)){"LP21000", "PCIe",
2189                                 "Obsolete, Unsupported FCoE Adapter"};
2190                 GE = 1;
2191                 break;
2192         case PCI_DEVICE_ID_PROTEUS_VF:
2193                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2194                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2195                 break;
2196         case PCI_DEVICE_ID_PROTEUS_PF:
2197                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2198                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2199                 break;
2200         case PCI_DEVICE_ID_PROTEUS_S:
2201                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2202                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2203                 break;
2204         case PCI_DEVICE_ID_TIGERSHARK:
2205                 oneConnect = 1;
2206                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2207                 break;
2208         case PCI_DEVICE_ID_TOMCAT:
2209                 oneConnect = 1;
2210                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2211                 break;
2212         case PCI_DEVICE_ID_FALCON:
2213                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2214                                 "EmulexSecure Fibre"};
2215                 break;
2216         case PCI_DEVICE_ID_BALIUS:
2217                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2218                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2219                 break;
2220         case PCI_DEVICE_ID_LANCER_FC:
2221                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2222                 break;
2223         case PCI_DEVICE_ID_LANCER_FC_VF:
2224                 m = (typeof(m)){"LPe16000", "PCIe",
2225                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2226                 break;
2227         case PCI_DEVICE_ID_LANCER_FCOE:
2228                 oneConnect = 1;
2229                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2230                 break;
2231         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2232                 oneConnect = 1;
2233                 m = (typeof(m)){"OCe15100", "PCIe",
2234                                 "Obsolete, Unsupported FCoE"};
2235                 break;
2236         case PCI_DEVICE_ID_LANCER_G6_FC:
2237                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2238                 break;
2239         case PCI_DEVICE_ID_SKYHAWK:
2240         case PCI_DEVICE_ID_SKYHAWK_VF:
2241                 oneConnect = 1;
2242                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2243                 break;
2244         default:
2245                 m = (typeof(m)){"Unknown", "", ""};
2246                 break;
2247         }
2248
2249         if (mdp && mdp[0] == '\0')
2250                 snprintf(mdp, 79,"%s", m.name);
2251         /*
2252          * oneConnect hba requires special processing, they are all initiators
2253          * and we put the port number on the end
2254          */
2255         if (descp && descp[0] == '\0') {
2256                 if (oneConnect)
2257                         snprintf(descp, 255,
2258                                 "Emulex OneConnect %s, %s Initiator %s",
2259                                 m.name, m.function,
2260                                 phba->Port);
2261                 else if (max_speed == 0)
2262                         snprintf(descp, 255,
2263                                 "Emulex %s %s %s",
2264                                 m.name, m.bus, m.function);
2265                 else
2266                         snprintf(descp, 255,
2267                                 "Emulex %s %d%s %s %s",
2268                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2269                                 m.bus, m.function);
2270         }
2271 }
2272
2273 /**
2274  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2275  * @phba: pointer to lpfc hba data structure.
2276  * @pring: pointer to a IOCB ring.
2277  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2278  *
2279  * This routine posts a given number of IOCBs with the associated DMA buffer
2280  * descriptors specified by the cnt argument to the given IOCB ring.
2281  *
2282  * Return codes
2283  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2284  **/
2285 int
2286 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2287 {
2288         IOCB_t *icmd;
2289         struct lpfc_iocbq *iocb;
2290         struct lpfc_dmabuf *mp1, *mp2;
2291
2292         cnt += pring->missbufcnt;
2293
2294         /* While there are buffers to post */
2295         while (cnt > 0) {
2296                 /* Allocate buffer for  command iocb */
2297                 iocb = lpfc_sli_get_iocbq(phba);
2298                 if (iocb == NULL) {
2299                         pring->missbufcnt = cnt;
2300                         return cnt;
2301                 }
2302                 icmd = &iocb->iocb;
2303
2304                 /* 2 buffers can be posted per command */
2305                 /* Allocate buffer to post */
2306                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2307                 if (mp1)
2308                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2309                 if (!mp1 || !mp1->virt) {
2310                         kfree(mp1);
2311                         lpfc_sli_release_iocbq(phba, iocb);
2312                         pring->missbufcnt = cnt;
2313                         return cnt;
2314                 }
2315
2316                 INIT_LIST_HEAD(&mp1->list);
2317                 /* Allocate buffer to post */
2318                 if (cnt > 1) {
2319                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2320                         if (mp2)
2321                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2322                                                             &mp2->phys);
2323                         if (!mp2 || !mp2->virt) {
2324                                 kfree(mp2);
2325                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2326                                 kfree(mp1);
2327                                 lpfc_sli_release_iocbq(phba, iocb);
2328                                 pring->missbufcnt = cnt;
2329                                 return cnt;
2330                         }
2331
2332                         INIT_LIST_HEAD(&mp2->list);
2333                 } else {
2334                         mp2 = NULL;
2335                 }
2336
2337                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2338                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2339                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2340                 icmd->ulpBdeCount = 1;
2341                 cnt--;
2342                 if (mp2) {
2343                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2344                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2345                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2346                         cnt--;
2347                         icmd->ulpBdeCount = 2;
2348                 }
2349
2350                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2351                 icmd->ulpLe = 1;
2352
2353                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2354                     IOCB_ERROR) {
2355                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2356                         kfree(mp1);
2357                         cnt++;
2358                         if (mp2) {
2359                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2360                                 kfree(mp2);
2361                                 cnt++;
2362                         }
2363                         lpfc_sli_release_iocbq(phba, iocb);
2364                         pring->missbufcnt = cnt;
2365                         return cnt;
2366                 }
2367                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2368                 if (mp2)
2369                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2370         }
2371         pring->missbufcnt = 0;
2372         return 0;
2373 }
2374
2375 /**
2376  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2377  * @phba: pointer to lpfc hba data structure.
2378  *
2379  * This routine posts initial receive IOCB buffers to the ELS ring. The
2380  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2381  * set to 64 IOCBs.
2382  *
2383  * Return codes
2384  *   0 - success (currently always success)
2385  **/
2386 static int
2387 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2388 {
2389         struct lpfc_sli *psli = &phba->sli;
2390
2391         /* Ring 0, ELS / CT buffers */
2392         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2393         /* Ring 2 - FCP no buffers needed */
2394
2395         return 0;
2396 }
2397
2398 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2399
2400 /**
2401  * lpfc_sha_init - Set up initial array of hash table entries
2402  * @HashResultPointer: pointer to an array as hash table.
2403  *
2404  * This routine sets up the initial values to the array of hash table entries
2405  * for the LC HBAs.
2406  **/
2407 static void
2408 lpfc_sha_init(uint32_t * HashResultPointer)
2409 {
2410         HashResultPointer[0] = 0x67452301;
2411         HashResultPointer[1] = 0xEFCDAB89;
2412         HashResultPointer[2] = 0x98BADCFE;
2413         HashResultPointer[3] = 0x10325476;
2414         HashResultPointer[4] = 0xC3D2E1F0;
2415 }
2416
2417 /**
2418  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2419  * @HashResultPointer: pointer to an initial/result hash table.
2420  * @HashWorkingPointer: pointer to an working hash table.
2421  *
2422  * This routine iterates an initial hash table pointed by @HashResultPointer
2423  * with the values from the working hash table pointeed by @HashWorkingPointer.
2424  * The results are putting back to the initial hash table, returned through
2425  * the @HashResultPointer as the result hash table.
2426  **/
2427 static void
2428 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2429 {
2430         int t;
2431         uint32_t TEMP;
2432         uint32_t A, B, C, D, E;
2433         t = 16;
2434         do {
2435                 HashWorkingPointer[t] =
2436                     S(1,
2437                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2438                                                                      8] ^
2439                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2440         } while (++t <= 79);
2441         t = 0;
2442         A = HashResultPointer[0];
2443         B = HashResultPointer[1];
2444         C = HashResultPointer[2];
2445         D = HashResultPointer[3];
2446         E = HashResultPointer[4];
2447
2448         do {
2449                 if (t < 20) {
2450                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2451                 } else if (t < 40) {
2452                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2453                 } else if (t < 60) {
2454                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2455                 } else {
2456                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2457                 }
2458                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2459                 E = D;
2460                 D = C;
2461                 C = S(30, B);
2462                 B = A;
2463                 A = TEMP;
2464         } while (++t <= 79);
2465
2466         HashResultPointer[0] += A;
2467         HashResultPointer[1] += B;
2468         HashResultPointer[2] += C;
2469         HashResultPointer[3] += D;
2470         HashResultPointer[4] += E;
2471
2472 }
2473
2474 /**
2475  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2476  * @RandomChallenge: pointer to the entry of host challenge random number array.
2477  * @HashWorking: pointer to the entry of the working hash array.
2478  *
2479  * This routine calculates the working hash array referred by @HashWorking
2480  * from the challenge random numbers associated with the host, referred by
2481  * @RandomChallenge. The result is put into the entry of the working hash
2482  * array and returned by reference through @HashWorking.
2483  **/
2484 static void
2485 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2486 {
2487         *HashWorking = (*RandomChallenge ^ *HashWorking);
2488 }
2489
2490 /**
2491  * lpfc_hba_init - Perform special handling for LC HBA initialization
2492  * @phba: pointer to lpfc hba data structure.
2493  * @hbainit: pointer to an array of unsigned 32-bit integers.
2494  *
2495  * This routine performs the special handling for LC HBA initialization.
2496  **/
2497 void
2498 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2499 {
2500         int t;
2501         uint32_t *HashWorking;
2502         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2503
2504         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2505         if (!HashWorking)
2506                 return;
2507
2508         HashWorking[0] = HashWorking[78] = *pwwnn++;
2509         HashWorking[1] = HashWorking[79] = *pwwnn;
2510
2511         for (t = 0; t < 7; t++)
2512                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2513
2514         lpfc_sha_init(hbainit);
2515         lpfc_sha_iterate(hbainit, HashWorking);
2516         kfree(HashWorking);
2517 }
2518
2519 /**
2520  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2521  * @vport: pointer to a virtual N_Port data structure.
2522  *
2523  * This routine performs the necessary cleanups before deleting the @vport.
2524  * It invokes the discovery state machine to perform necessary state
2525  * transitions and to release the ndlps associated with the @vport. Note,
2526  * the physical port is treated as @vport 0.
2527  **/
2528 void
2529 lpfc_cleanup(struct lpfc_vport *vport)
2530 {
2531         struct lpfc_hba   *phba = vport->phba;
2532         struct lpfc_nodelist *ndlp, *next_ndlp;
2533         int i = 0;
2534
2535         if (phba->link_state > LPFC_LINK_DOWN)
2536                 lpfc_port_link_failure(vport);
2537
2538         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2539                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2540                         ndlp = lpfc_enable_node(vport, ndlp,
2541                                                 NLP_STE_UNUSED_NODE);
2542                         if (!ndlp)
2543                                 continue;
2544                         spin_lock_irq(&phba->ndlp_lock);
2545                         NLP_SET_FREE_REQ(ndlp);
2546                         spin_unlock_irq(&phba->ndlp_lock);
2547                         /* Trigger the release of the ndlp memory */
2548                         lpfc_nlp_put(ndlp);
2549                         continue;
2550                 }
2551                 spin_lock_irq(&phba->ndlp_lock);
2552                 if (NLP_CHK_FREE_REQ(ndlp)) {
2553                         /* The ndlp should not be in memory free mode already */
2554                         spin_unlock_irq(&phba->ndlp_lock);
2555                         continue;
2556                 } else
2557                         /* Indicate request for freeing ndlp memory */
2558                         NLP_SET_FREE_REQ(ndlp);
2559                 spin_unlock_irq(&phba->ndlp_lock);
2560
2561                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2562                     ndlp->nlp_DID == Fabric_DID) {
2563                         /* Just free up ndlp with Fabric_DID for vports */
2564                         lpfc_nlp_put(ndlp);
2565                         continue;
2566                 }
2567
2568                 /* take care of nodes in unused state before the state
2569                  * machine taking action.
2570                  */
2571                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2572                         lpfc_nlp_put(ndlp);
2573                         continue;
2574                 }
2575
2576                 if (ndlp->nlp_type & NLP_FABRIC)
2577                         lpfc_disc_state_machine(vport, ndlp, NULL,
2578                                         NLP_EVT_DEVICE_RECOVERY);
2579
2580                 lpfc_disc_state_machine(vport, ndlp, NULL,
2581                                              NLP_EVT_DEVICE_RM);
2582         }
2583
2584         /* At this point, ALL ndlp's should be gone
2585          * because of the previous NLP_EVT_DEVICE_RM.
2586          * Lets wait for this to happen, if needed.
2587          */
2588         while (!list_empty(&vport->fc_nodes)) {
2589                 if (i++ > 3000) {
2590                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2591                                 "0233 Nodelist not empty\n");
2592                         list_for_each_entry_safe(ndlp, next_ndlp,
2593                                                 &vport->fc_nodes, nlp_listp) {
2594                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2595                                                 LOG_NODE,
2596                                                 "0282 did:x%x ndlp:x%p "
2597                                                 "usgmap:x%x refcnt:%d\n",
2598                                                 ndlp->nlp_DID, (void *)ndlp,
2599                                                 ndlp->nlp_usg_map,
2600                                                 atomic_read(
2601                                                         &ndlp->kref.refcount));
2602                         }
2603                         break;
2604                 }
2605
2606                 /* Wait for any activity on ndlps to settle */
2607                 msleep(10);
2608         }
2609         lpfc_cleanup_vports_rrqs(vport, NULL);
2610 }
2611
2612 /**
2613  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2614  * @vport: pointer to a virtual N_Port data structure.
2615  *
2616  * This routine stops all the timers associated with a @vport. This function
2617  * is invoked before disabling or deleting a @vport. Note that the physical
2618  * port is treated as @vport 0.
2619  **/
2620 void
2621 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2622 {
2623         del_timer_sync(&vport->els_tmofunc);
2624         del_timer_sync(&vport->fc_fdmitmo);
2625         del_timer_sync(&vport->delayed_disc_tmo);
2626         lpfc_can_disctmo(vport);
2627         return;
2628 }
2629
2630 /**
2631  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2632  * @phba: pointer to lpfc hba data structure.
2633  *
2634  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2635  * caller of this routine should already hold the host lock.
2636  **/
2637 void
2638 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2639 {
2640         /* Clear pending FCF rediscovery wait flag */
2641         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2642
2643         /* Now, try to stop the timer */
2644         del_timer(&phba->fcf.redisc_wait);
2645 }
2646
2647 /**
2648  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2649  * @phba: pointer to lpfc hba data structure.
2650  *
2651  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2652  * checks whether the FCF rediscovery wait timer is pending with the host
2653  * lock held before proceeding with disabling the timer and clearing the
2654  * wait timer pendig flag.
2655  **/
2656 void
2657 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2658 {
2659         spin_lock_irq(&phba->hbalock);
2660         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2661                 /* FCF rediscovery timer already fired or stopped */
2662                 spin_unlock_irq(&phba->hbalock);
2663                 return;
2664         }
2665         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2666         /* Clear failover in progress flags */
2667         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2668         spin_unlock_irq(&phba->hbalock);
2669 }
2670
2671 /**
2672  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2673  * @phba: pointer to lpfc hba data structure.
2674  *
2675  * This routine stops all the timers associated with a HBA. This function is
2676  * invoked before either putting a HBA offline or unloading the driver.
2677  **/
2678 void
2679 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2680 {
2681         lpfc_stop_vport_timers(phba->pport);
2682         del_timer_sync(&phba->sli.mbox_tmo);
2683         del_timer_sync(&phba->fabric_block_timer);
2684         del_timer_sync(&phba->eratt_poll);
2685         del_timer_sync(&phba->hb_tmofunc);
2686         if (phba->sli_rev == LPFC_SLI_REV4) {
2687                 del_timer_sync(&phba->rrq_tmr);
2688                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2689         }
2690         phba->hb_outstanding = 0;
2691
2692         switch (phba->pci_dev_grp) {
2693         case LPFC_PCI_DEV_LP:
2694                 /* Stop any LightPulse device specific driver timers */
2695                 del_timer_sync(&phba->fcp_poll_timer);
2696                 break;
2697         case LPFC_PCI_DEV_OC:
2698                 /* Stop any OneConnect device sepcific driver timers */
2699                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2700                 break;
2701         default:
2702                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2703                                 "0297 Invalid device group (x%x)\n",
2704                                 phba->pci_dev_grp);
2705                 break;
2706         }
2707         return;
2708 }
2709
2710 /**
2711  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2712  * @phba: pointer to lpfc hba data structure.
2713  *
2714  * This routine marks a HBA's management interface as blocked. Once the HBA's
2715  * management interface is marked as blocked, all the user space access to
2716  * the HBA, whether they are from sysfs interface or libdfc interface will
2717  * all be blocked. The HBA is set to block the management interface when the
2718  * driver prepares the HBA interface for online or offline.
2719  **/
2720 static void
2721 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2722 {
2723         unsigned long iflag;
2724         uint8_t actcmd = MBX_HEARTBEAT;
2725         unsigned long timeout;
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         if (mbx_action == LPFC_MBX_NO_WAIT)
2731                 return;
2732         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2733         spin_lock_irqsave(&phba->hbalock, iflag);
2734         if (phba->sli.mbox_active) {
2735                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2736                 /* Determine how long we might wait for the active mailbox
2737                  * command to be gracefully completed by firmware.
2738                  */
2739                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2740                                 phba->sli.mbox_active) * 1000) + jiffies;
2741         }
2742         spin_unlock_irqrestore(&phba->hbalock, iflag);
2743
2744         /* Wait for the outstnading mailbox command to complete */
2745         while (phba->sli.mbox_active) {
2746                 /* Check active mailbox complete status every 2ms */
2747                 msleep(2);
2748                 if (time_after(jiffies, timeout)) {
2749                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2750                                 "2813 Mgmt IO is Blocked %x "
2751                                 "- mbox cmd %x still active\n",
2752                                 phba->sli.sli_flag, actcmd);
2753                         break;
2754                 }
2755         }
2756 }
2757
2758 /**
2759  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2760  * @phba: pointer to lpfc hba data structure.
2761  *
2762  * Allocate RPIs for all active remote nodes. This is needed whenever
2763  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2764  * is to fixup the temporary rpi assignments.
2765  **/
2766 void
2767 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2768 {
2769         struct lpfc_nodelist  *ndlp, *next_ndlp;
2770         struct lpfc_vport **vports;
2771         int i;
2772
2773         if (phba->sli_rev != LPFC_SLI_REV4)
2774                 return;
2775
2776         vports = lpfc_create_vport_work_array(phba);
2777         if (vports != NULL) {
2778                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2779                         if (vports[i]->load_flag & FC_UNLOADING)
2780                                 continue;
2781
2782                         list_for_each_entry_safe(ndlp, next_ndlp,
2783                                                  &vports[i]->fc_nodes,
2784                                                  nlp_listp) {
2785                                 if (NLP_CHK_NODE_ACT(ndlp)) {
2786                                         ndlp->nlp_rpi =
2787                                                 lpfc_sli4_alloc_rpi(phba);
2788                                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
2789                                                          LOG_NODE,
2790                                                          "0009 rpi:%x DID:%x "
2791                                                          "flg:%x map:%x %p\n",
2792                                                          ndlp->nlp_rpi,
2793                                                          ndlp->nlp_DID,
2794                                                          ndlp->nlp_flag,
2795                                                          ndlp->nlp_usg_map,
2796                                                          ndlp);
2797                                 }
2798                         }
2799                 }
2800         }
2801         lpfc_destroy_vport_work_array(phba, vports);
2802 }
2803
2804 /**
2805  * lpfc_online - Initialize and bring a HBA online
2806  * @phba: pointer to lpfc hba data structure.
2807  *
2808  * This routine initializes the HBA and brings a HBA online. During this
2809  * process, the management interface is blocked to prevent user space access
2810  * to the HBA interfering with the driver initialization.
2811  *
2812  * Return codes
2813  *   0 - successful
2814  *   1 - failed
2815  **/
2816 int
2817 lpfc_online(struct lpfc_hba *phba)
2818 {
2819         struct lpfc_vport *vport;
2820         struct lpfc_vport **vports;
2821         int i;
2822         bool vpis_cleared = false;
2823
2824         if (!phba)
2825                 return 0;
2826         vport = phba->pport;
2827
2828         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2829                 return 0;
2830
2831         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2832                         "0458 Bring Adapter online\n");
2833
2834         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2835
2836         if (!lpfc_sli_queue_setup(phba)) {
2837                 lpfc_unblock_mgmt_io(phba);
2838                 return 1;
2839         }
2840
2841         if (phba->sli_rev == LPFC_SLI_REV4) {
2842                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2843                         lpfc_unblock_mgmt_io(phba);
2844                         return 1;
2845                 }
2846                 spin_lock_irq(&phba->hbalock);
2847                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
2848                         vpis_cleared = true;
2849                 spin_unlock_irq(&phba->hbalock);
2850         } else {
2851                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2852                         lpfc_unblock_mgmt_io(phba);
2853                         return 1;
2854                 }
2855         }
2856
2857         vports = lpfc_create_vport_work_array(phba);
2858         if (vports != NULL)
2859                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2860                         struct Scsi_Host *shost;
2861                         shost = lpfc_shost_from_vport(vports[i]);
2862                         spin_lock_irq(shost->host_lock);
2863                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2864                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2865                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2866                         if (phba->sli_rev == LPFC_SLI_REV4) {
2867                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2868                                 if ((vpis_cleared) &&
2869                                     (vports[i]->port_type !=
2870                                         LPFC_PHYSICAL_PORT))
2871                                         vports[i]->vpi = 0;
2872                         }
2873                         spin_unlock_irq(shost->host_lock);
2874                 }
2875                 lpfc_destroy_vport_work_array(phba, vports);
2876
2877         lpfc_unblock_mgmt_io(phba);
2878         return 0;
2879 }
2880
2881 /**
2882  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2883  * @phba: pointer to lpfc hba data structure.
2884  *
2885  * This routine marks a HBA's management interface as not blocked. Once the
2886  * HBA's management interface is marked as not blocked, all the user space
2887  * access to the HBA, whether they are from sysfs interface or libdfc
2888  * interface will be allowed. The HBA is set to block the management interface
2889  * when the driver prepares the HBA interface for online or offline and then
2890  * set to unblock the management interface afterwards.
2891  **/
2892 void
2893 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2894 {
2895         unsigned long iflag;
2896
2897         spin_lock_irqsave(&phba->hbalock, iflag);
2898         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2899         spin_unlock_irqrestore(&phba->hbalock, iflag);
2900 }
2901
2902 /**
2903  * lpfc_offline_prep - Prepare a HBA to be brought offline
2904  * @phba: pointer to lpfc hba data structure.
2905  *
2906  * This routine is invoked to prepare a HBA to be brought offline. It performs
2907  * unregistration login to all the nodes on all vports and flushes the mailbox
2908  * queue to make it ready to be brought offline.
2909  **/
2910 void
2911 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2912 {
2913         struct lpfc_vport *vport = phba->pport;
2914         struct lpfc_nodelist  *ndlp, *next_ndlp;
2915         struct lpfc_vport **vports;
2916         struct Scsi_Host *shost;
2917         int i;
2918
2919         if (vport->fc_flag & FC_OFFLINE_MODE)
2920                 return;
2921
2922         lpfc_block_mgmt_io(phba, mbx_action);
2923
2924         lpfc_linkdown(phba);
2925
2926         /* Issue an unreg_login to all nodes on all vports */
2927         vports = lpfc_create_vport_work_array(phba);
2928         if (vports != NULL) {
2929                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2930                         if (vports[i]->load_flag & FC_UNLOADING)
2931                                 continue;
2932                         shost = lpfc_shost_from_vport(vports[i]);
2933                         spin_lock_irq(shost->host_lock);
2934                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2935                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2936                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2937                         spin_unlock_irq(shost->host_lock);
2938
2939                         shost = lpfc_shost_from_vport(vports[i]);
2940                         list_for_each_entry_safe(ndlp, next_ndlp,
2941                                                  &vports[i]->fc_nodes,
2942                                                  nlp_listp) {
2943                                 if (!NLP_CHK_NODE_ACT(ndlp))
2944                                         continue;
2945                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2946                                         continue;
2947                                 if (ndlp->nlp_type & NLP_FABRIC) {
2948                                         lpfc_disc_state_machine(vports[i], ndlp,
2949                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2950                                         lpfc_disc_state_machine(vports[i], ndlp,
2951                                                 NULL, NLP_EVT_DEVICE_RM);
2952                                 }
2953                                 spin_lock_irq(shost->host_lock);
2954                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2955                                 spin_unlock_irq(shost->host_lock);
2956                                 /*
2957                                  * Whenever an SLI4 port goes offline, free the
2958                                  * RPI. Get a new RPI when the adapter port
2959                                  * comes back online.
2960                                  */
2961                                 if (phba->sli_rev == LPFC_SLI_REV4) {
2962                                         lpfc_printf_vlog(ndlp->vport,
2963                                                          KERN_INFO, LOG_NODE,
2964                                                          "0011 lpfc_offline: "
2965                                                          "ndlp:x%p did %x "
2966                                                          "usgmap:x%x rpi:%x\n",
2967                                                          ndlp, ndlp->nlp_DID,
2968                                                          ndlp->nlp_usg_map,
2969                                                          ndlp->nlp_rpi);
2970
2971                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2972                                 }
2973                                 lpfc_unreg_rpi(vports[i], ndlp);
2974                         }
2975                 }
2976         }
2977         lpfc_destroy_vport_work_array(phba, vports);
2978
2979         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2980 }
2981
2982 /**
2983  * lpfc_offline - Bring a HBA offline
2984  * @phba: pointer to lpfc hba data structure.
2985  *
2986  * This routine actually brings a HBA offline. It stops all the timers
2987  * associated with the HBA, brings down the SLI layer, and eventually
2988  * marks the HBA as in offline state for the upper layer protocol.
2989  **/
2990 void
2991 lpfc_offline(struct lpfc_hba *phba)
2992 {
2993         struct Scsi_Host  *shost;
2994         struct lpfc_vport **vports;
2995         int i;
2996
2997         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2998                 return;
2999
3000         /* stop port and all timers associated with this hba */
3001         lpfc_stop_port(phba);
3002         vports = lpfc_create_vport_work_array(phba);
3003         if (vports != NULL)
3004                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3005                         lpfc_stop_vport_timers(vports[i]);
3006         lpfc_destroy_vport_work_array(phba, vports);
3007         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3008                         "0460 Bring Adapter offline\n");
3009         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3010            now.  */
3011         lpfc_sli_hba_down(phba);
3012         spin_lock_irq(&phba->hbalock);
3013         phba->work_ha = 0;
3014         spin_unlock_irq(&phba->hbalock);
3015         vports = lpfc_create_vport_work_array(phba);
3016         if (vports != NULL)
3017                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3018                         shost = lpfc_shost_from_vport(vports[i]);
3019                         spin_lock_irq(shost->host_lock);
3020                         vports[i]->work_port_events = 0;
3021                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3022                         spin_unlock_irq(shost->host_lock);
3023                 }
3024         lpfc_destroy_vport_work_array(phba, vports);
3025 }
3026
3027 /**
3028  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3029  * @phba: pointer to lpfc hba data structure.
3030  *
3031  * This routine is to free all the SCSI buffers and IOCBs from the driver
3032  * list back to kernel. It is called from lpfc_pci_remove_one to free
3033  * the internal resources before the device is removed from the system.
3034  **/
3035 static void
3036 lpfc_scsi_free(struct lpfc_hba *phba)
3037 {
3038         struct lpfc_scsi_buf *sb, *sb_next;
3039         struct lpfc_iocbq *io, *io_next;
3040
3041         spin_lock_irq(&phba->hbalock);
3042
3043         /* Release all the lpfc_scsi_bufs maintained by this host. */
3044
3045         spin_lock(&phba->scsi_buf_list_put_lock);
3046         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3047                                  list) {
3048                 list_del(&sb->list);
3049                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3050                               sb->dma_handle);
3051                 kfree(sb);
3052                 phba->total_scsi_bufs--;
3053         }
3054         spin_unlock(&phba->scsi_buf_list_put_lock);
3055
3056         spin_lock(&phba->scsi_buf_list_get_lock);
3057         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3058                                  list) {
3059                 list_del(&sb->list);
3060                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
3061                               sb->dma_handle);
3062                 kfree(sb);
3063                 phba->total_scsi_bufs--;
3064         }
3065         spin_unlock(&phba->scsi_buf_list_get_lock);
3066
3067         /* Release all the lpfc_iocbq entries maintained by this host. */
3068         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
3069                 list_del(&io->list);
3070                 kfree(io);
3071                 phba->total_iocbq_bufs--;
3072         }
3073
3074         spin_unlock_irq(&phba->hbalock);
3075 }
3076
3077 /**
3078  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
3079  * @phba: pointer to lpfc hba data structure.
3080  *
3081  * This routine first calculates the sizes of the current els and allocated
3082  * scsi sgl lists, and then goes through all sgls to updates the physical
3083  * XRIs assigned due to port function reset. During port initialization, the
3084  * current els and allocated scsi sgl lists are 0s.
3085  *
3086  * Return codes
3087  *   0 - successful (for now, it always returns 0)
3088  **/
3089 int
3090 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
3091 {
3092         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3093         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
3094         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
3095         LIST_HEAD(els_sgl_list);
3096         LIST_HEAD(scsi_sgl_list);
3097         int rc;
3098         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3099
3100         /*
3101          * update on pci function's els xri-sgl list
3102          */
3103         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3104         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3105                 /* els xri-sgl expanded */
3106                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3107                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3108                                 "3157 ELS xri-sgl count increased from "
3109                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3110                                 els_xri_cnt);
3111                 /* allocate the additional els sgls */
3112                 for (i = 0; i < xri_cnt; i++) {
3113                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3114                                              GFP_KERNEL);
3115                         if (sglq_entry == NULL) {
3116                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3117                                                 "2562 Failure to allocate an "
3118                                                 "ELS sgl entry:%d\n", i);
3119                                 rc = -ENOMEM;
3120                                 goto out_free_mem;
3121                         }
3122                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3123                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3124                                                            &sglq_entry->phys);
3125                         if (sglq_entry->virt == NULL) {
3126                                 kfree(sglq_entry);
3127                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3128                                                 "2563 Failure to allocate an "
3129                                                 "ELS mbuf:%d\n", i);
3130                                 rc = -ENOMEM;
3131                                 goto out_free_mem;
3132                         }
3133                         sglq_entry->sgl = sglq_entry->virt;
3134                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3135                         sglq_entry->state = SGL_FREED;
3136                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3137                 }
3138                 spin_lock_irq(&phba->hbalock);
3139                 spin_lock(&pring->ring_lock);
3140                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3141                 spin_unlock(&pring->ring_lock);
3142                 spin_unlock_irq(&phba->hbalock);
3143         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3144                 /* els xri-sgl shrinked */
3145                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3146                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3147                                 "3158 ELS xri-sgl count decreased from "
3148                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3149                                 els_xri_cnt);
3150                 spin_lock_irq(&phba->hbalock);
3151                 spin_lock(&pring->ring_lock);
3152                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
3153                 spin_unlock(&pring->ring_lock);
3154                 spin_unlock_irq(&phba->hbalock);
3155                 /* release extra els sgls from list */
3156                 for (i = 0; i < xri_cnt; i++) {
3157                         list_remove_head(&els_sgl_list,
3158                                          sglq_entry, struct lpfc_sglq, list);
3159                         if (sglq_entry) {
3160                                 lpfc_mbuf_free(phba, sglq_entry->virt,
3161                                                sglq_entry->phys);
3162                                 kfree(sglq_entry);
3163                         }
3164                 }
3165                 spin_lock_irq(&phba->hbalock);
3166                 spin_lock(&pring->ring_lock);
3167                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
3168                 spin_unlock(&pring->ring_lock);
3169                 spin_unlock_irq(&phba->hbalock);
3170         } else
3171                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3172                                 "3163 ELS xri-sgl count unchanged: %d\n",
3173                                 els_xri_cnt);
3174         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3175
3176         /* update xris to els sgls on the list */
3177         sglq_entry = NULL;
3178         sglq_entry_next = NULL;
3179         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3180                                  &phba->sli4_hba.lpfc_sgl_list, list) {
3181                 lxri = lpfc_sli4_next_xritag(phba);
3182                 if (lxri == NO_XRI) {
3183                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3184                                         "2400 Failed to allocate xri for "
3185                                         "ELS sgl\n");
3186                         rc = -ENOMEM;
3187                         goto out_free_mem;
3188                 }
3189                 sglq_entry->sli4_lxritag = lxri;
3190                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3191         }
3192
3193         /*
3194          * update on pci function's allocated scsi xri-sgl list
3195          */
3196         phba->total_scsi_bufs = 0;
3197
3198         /* maximum number of xris available for scsi buffers */
3199         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
3200                                       els_xri_cnt;
3201
3202         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3203                         "2401 Current allocated SCSI xri-sgl count:%d, "
3204                         "maximum  SCSI xri count:%d\n",
3205                         phba->sli4_hba.scsi_xri_cnt,
3206                         phba->sli4_hba.scsi_xri_max);
3207
3208         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3209         spin_lock(&phba->scsi_buf_list_put_lock);
3210         list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list);
3211         list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list);
3212         spin_unlock(&phba->scsi_buf_list_put_lock);
3213         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3214
3215         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
3216                 /* max scsi xri shrinked below the allocated scsi buffers */
3217                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
3218                                         phba->sli4_hba.scsi_xri_max;
3219                 /* release the extra allocated scsi buffers */
3220                 for (i = 0; i < scsi_xri_cnt; i++) {
3221                         list_remove_head(&scsi_sgl_list, psb,
3222                                          struct lpfc_scsi_buf, list);
3223                         if (psb) {
3224                                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
3225                                               psb->data, psb->dma_handle);
3226                                 kfree(psb);
3227                         }
3228                 }
3229                 spin_lock_irq(&phba->scsi_buf_list_get_lock);
3230                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
3231                 spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3232         }
3233
3234         /* update xris associated to remaining allocated scsi buffers */
3235         psb = NULL;
3236         psb_next = NULL;
3237         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
3238                 lxri = lpfc_sli4_next_xritag(phba);
3239                 if (lxri == NO_XRI) {
3240                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3241                                         "2560 Failed to allocate xri for "
3242                                         "scsi buffer\n");
3243                         rc = -ENOMEM;
3244                         goto out_free_mem;
3245                 }
3246                 psb->cur_iocbq.sli4_lxritag = lxri;
3247                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3248         }
3249         spin_lock_irq(&phba->scsi_buf_list_get_lock);
3250         spin_lock(&phba->scsi_buf_list_put_lock);
3251         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get);
3252         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
3253         spin_unlock(&phba->scsi_buf_list_put_lock);
3254         spin_unlock_irq(&phba->scsi_buf_list_get_lock);
3255
3256         return 0;
3257
3258 out_free_mem:
3259         lpfc_free_els_sgl_list(phba);
3260         lpfc_scsi_free(phba);
3261         return rc;
3262 }
3263
3264 /**
3265  * lpfc_create_port - Create an FC port
3266  * @phba: pointer to lpfc hba data structure.
3267  * @instance: a unique integer ID to this FC port.
3268  * @dev: pointer to the device data structure.
3269  *
3270  * This routine creates a FC port for the upper layer protocol. The FC port
3271  * can be created on top of either a physical port or a virtual port provided
3272  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3273  * and associates the FC port created before adding the shost into the SCSI
3274  * layer.
3275  *
3276  * Return codes
3277  *   @vport - pointer to the virtual N_Port data structure.
3278  *   NULL - port create failed.
3279  **/
3280 struct lpfc_vport *
3281 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3282 {
3283         struct lpfc_vport *vport;
3284         struct Scsi_Host  *shost;
3285         int error = 0;
3286
3287         if (dev != &phba->pcidev->dev) {
3288                 shost = scsi_host_alloc(&lpfc_vport_template,
3289                                         sizeof(struct lpfc_vport));
3290         } else {
3291                 if (phba->sli_rev == LPFC_SLI_REV4)
3292                         shost = scsi_host_alloc(&lpfc_template,
3293                                         sizeof(struct lpfc_vport));
3294                 else
3295                         shost = scsi_host_alloc(&lpfc_template_s3,
3296                                         sizeof(struct lpfc_vport));
3297         }
3298         if (!shost)
3299                 goto out;
3300
3301         vport = (struct lpfc_vport *) shost->hostdata;
3302         vport->phba = phba;
3303         vport->load_flag |= FC_LOADING;
3304         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3305         vport->fc_rscn_flush = 0;
3306
3307         lpfc_get_vport_cfgparam(vport);
3308         shost->unique_id = instance;
3309         shost->max_id = LPFC_MAX_TARGET;
3310         shost->max_lun = vport->cfg_max_luns;
3311         shost->this_id = -1;
3312         shost->max_cmd_len = 16;
3313         shost->nr_hw_queues = phba->cfg_fcp_io_channel;
3314         if (phba->sli_rev == LPFC_SLI_REV4) {
3315                 shost->dma_boundary =
3316                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3317                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3318         }
3319
3320         /*
3321          * Set initial can_queue value since 0 is no longer supported and
3322          * scsi_add_host will fail. This will be adjusted later based on the
3323          * max xri value determined in hba setup.
3324          */
3325         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3326         if (dev != &phba->pcidev->dev) {
3327                 shost->transportt = lpfc_vport_transport_template;
3328                 vport->port_type = LPFC_NPIV_PORT;
3329         } else {
3330                 shost->transportt = lpfc_transport_template;
3331                 vport->port_type = LPFC_PHYSICAL_PORT;
3332         }
3333
3334         /* Initialize all internally managed lists. */
3335         INIT_LIST_HEAD(&vport->fc_nodes);
3336         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3337         spin_lock_init(&vport->work_port_lock);
3338
3339         init_timer(&vport->fc_disctmo);
3340         vport->fc_disctmo.function = lpfc_disc_timeout;
3341         vport->fc_disctmo.data = (unsigned long)vport;
3342
3343         init_timer(&vport->fc_fdmitmo);
3344         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3345         vport->fc_fdmitmo.data = (unsigned long)vport;
3346
3347         init_timer(&vport->els_tmofunc);
3348         vport->els_tmofunc.function = lpfc_els_timeout;
3349         vport->els_tmofunc.data = (unsigned long)vport;
3350
3351         init_timer(&vport->delayed_disc_tmo);
3352         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3353         vport->delayed_disc_tmo.data = (unsigned long)vport;
3354
3355         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3356         if (error)
3357                 goto out_put_shost;
3358
3359         spin_lock_irq(&phba->hbalock);
3360         list_add_tail(&vport->listentry, &phba->port_list);
3361         spin_unlock_irq(&phba->hbalock);
3362         return vport;
3363
3364 out_put_shost:
3365         scsi_host_put(shost);
3366 out:
3367         return NULL;
3368 }
3369
3370 /**
3371  * destroy_port -  destroy an FC port
3372  * @vport: pointer to an lpfc virtual N_Port data structure.
3373  *
3374  * This routine destroys a FC port from the upper layer protocol. All the
3375  * resources associated with the port are released.
3376  **/
3377 void
3378 destroy_port(struct lpfc_vport *vport)
3379 {
3380         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3381         struct lpfc_hba  *phba = vport->phba;
3382
3383         lpfc_debugfs_terminate(vport);
3384         fc_remove_host(shost);
3385         scsi_remove_host(shost);
3386
3387         spin_lock_irq(&phba->hbalock);
3388         list_del_init(&vport->listentry);
3389         spin_unlock_irq(&phba->hbalock);
3390
3391         lpfc_cleanup(vport);
3392         return;
3393 }
3394
3395 /**
3396  * lpfc_get_instance - Get a unique integer ID
3397  *
3398  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3399  * uses the kernel idr facility to perform the task.
3400  *
3401  * Return codes:
3402  *   instance - a unique integer ID allocated as the new instance.
3403  *   -1 - lpfc get instance failed.
3404  **/
3405 int
3406 lpfc_get_instance(void)
3407 {
3408         int ret;
3409
3410         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
3411         return ret < 0 ? -1 : ret;
3412 }
3413
3414 /**
3415  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3416  * @shost: pointer to SCSI host data structure.
3417  * @time: elapsed time of the scan in jiffies.
3418  *
3419  * This routine is called by the SCSI layer with a SCSI host to determine
3420  * whether the scan host is finished.
3421  *
3422  * Note: there is no scan_start function as adapter initialization will have
3423  * asynchronously kicked off the link initialization.
3424  *
3425  * Return codes
3426  *   0 - SCSI host scan is not over yet.
3427  *   1 - SCSI host scan is over.
3428  **/
3429 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3430 {
3431         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3432         struct lpfc_hba   *phba = vport->phba;
3433         int stat = 0;
3434
3435         spin_lock_irq(shost->host_lock);
3436
3437         if (vport->load_flag & FC_UNLOADING) {
3438                 stat = 1;
3439                 goto finished;
3440         }
3441         if (time >= msecs_to_jiffies(30 * 1000)) {
3442                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3443                                 "0461 Scanning longer than 30 "
3444                                 "seconds.  Continuing initialization\n");
3445                 stat = 1;
3446                 goto finished;
3447         }
3448         if (time >= msecs_to_jiffies(15 * 1000) &&
3449             phba->link_state <= LPFC_LINK_DOWN) {
3450                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3451                                 "0465 Link down longer than 15 "
3452                                 "seconds.  Continuing initialization\n");
3453                 stat = 1;
3454                 goto finished;
3455         }
3456
3457         if (vport->port_state != LPFC_VPORT_READY)
3458                 goto finished;
3459         if (vport->num_disc_nodes || vport->fc_prli_sent)
3460                 goto finished;
3461         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
3462                 goto finished;
3463         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3464                 goto finished;
3465
3466         stat = 1;
3467
3468 finished:
3469         spin_unlock_irq(shost->host_lock);
3470         return stat;
3471 }
3472
3473 /**
3474  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3475  * @shost: pointer to SCSI host data structure.
3476  *
3477  * This routine initializes a given SCSI host attributes on a FC port. The
3478  * SCSI host can be either on top of a physical port or a virtual port.
3479  **/
3480 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3481 {
3482         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3483         struct lpfc_hba   *phba = vport->phba;
3484         /*
3485          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3486          */
3487
3488         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3489         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3490         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3491
3492         memset(fc_host_supported_fc4s(shost), 0,
3493                sizeof(fc_host_supported_fc4s(shost)));
3494         fc_host_supported_fc4s(shost)[2] = 1;
3495         fc_host_supported_fc4s(shost)[7] = 1;
3496
3497         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3498                                  sizeof fc_host_symbolic_name(shost));
3499
3500         fc_host_supported_speeds(shost) = 0;
3501         if (phba->lmt & LMT_32Gb)
3502                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
3503         if (phba->lmt & LMT_16Gb)
3504                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3505         if (phba->lmt & LMT_10Gb)
3506                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3507         if (phba->lmt & LMT_8Gb)
3508                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3509         if (phba->lmt & LMT_4Gb)
3510                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3511         if (phba->lmt & LMT_2Gb)
3512                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3513         if (phba->lmt & LMT_1Gb)
3514                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3515
3516         fc_host_maxframe_size(shost) =
3517                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3518                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3519
3520         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3521
3522         /* This value is also unchanging */
3523         memset(fc_host_active_fc4s(shost), 0,
3524                sizeof(fc_host_active_fc4s(shost)));
3525         fc_host_active_fc4s(shost)[2] = 1;
3526         fc_host_active_fc4s(shost)[7] = 1;
3527
3528         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3529         spin_lock_irq(shost->host_lock);
3530         vport->load_flag &= ~FC_LOADING;
3531         spin_unlock_irq(shost->host_lock);
3532 }
3533
3534 /**
3535  * lpfc_stop_port_s3 - Stop SLI3 device port
3536  * @phba: pointer to lpfc hba data structure.
3537  *
3538  * This routine is invoked to stop an SLI3 device port, it stops the device
3539  * from generating interrupts and stops the device driver's timers for the
3540  * device.
3541  **/
3542 static void
3543 lpfc_stop_port_s3(struct lpfc_hba *phba)
3544 {
3545         /* Clear all interrupt enable conditions */
3546         writel(0, phba->HCregaddr);
3547         readl(phba->HCregaddr); /* flush */
3548         /* Clear all pending interrupts */
3549         writel(0xffffffff, phba->HAregaddr);
3550         readl(phba->HAregaddr); /* flush */
3551
3552         /* Reset some HBA SLI setup states */
3553         lpfc_stop_hba_timers(phba);
3554         phba->pport->work_port_events = 0;
3555 }
3556
3557 /**
3558  * lpfc_stop_port_s4 - Stop SLI4 device port
3559  * @phba: pointer to lpfc hba data structure.
3560  *
3561  * This routine is invoked to stop an SLI4 device port, it stops the device
3562  * from generating interrupts and stops the device driver's timers for the
3563  * device.
3564  **/
3565 static void
3566 lpfc_stop_port_s4(struct lpfc_hba *phba)
3567 {
3568         /* Reset some HBA SLI4 setup states */
3569         lpfc_stop_hba_timers(phba);
3570         phba->pport->work_port_events = 0;
3571         phba->sli4_hba.intr_enable = 0;
3572 }
3573
3574 /**
3575  * lpfc_stop_port - Wrapper function for stopping hba port
3576  * @phba: Pointer to HBA context object.
3577  *
3578  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3579  * the API jump table function pointer from the lpfc_hba struct.
3580  **/
3581 void
3582 lpfc_stop_port(struct lpfc_hba *phba)
3583 {
3584         phba->lpfc_stop_port(phba);
3585 }
3586
3587 /**
3588  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3589  * @phba: Pointer to hba for which this call is being executed.
3590  *
3591  * This routine starts the timer waiting for the FCF rediscovery to complete.
3592  **/
3593 void
3594 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3595 {
3596         unsigned long fcf_redisc_wait_tmo =
3597                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3598         /* Start fcf rediscovery wait period timer */
3599         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3600         spin_lock_irq(&phba->hbalock);
3601         /* Allow action to new fcf asynchronous event */
3602         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3603         /* Mark the FCF rediscovery pending state */
3604         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3605         spin_unlock_irq(&phba->hbalock);
3606 }
3607
3608 /**
3609  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3610  * @ptr: Map to lpfc_hba data structure pointer.
3611  *
3612  * This routine is invoked when waiting for FCF table rediscover has been
3613  * timed out. If new FCF record(s) has (have) been discovered during the
3614  * wait period, a new FCF event shall be added to the FCOE async event
3615  * list, and then worker thread shall be waked up for processing from the
3616  * worker thread context.
3617  **/
3618 static void
3619 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3620 {
3621         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3622
3623         /* Don't send FCF rediscovery event if timer cancelled */
3624         spin_lock_irq(&phba->hbalock);
3625         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3626                 spin_unlock_irq(&phba->hbalock);
3627                 return;
3628         }
3629         /* Clear FCF rediscovery timer pending flag */
3630         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3631         /* FCF rediscovery event to worker thread */
3632         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3633         spin_unlock_irq(&phba->hbalock);
3634         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3635                         "2776 FCF rediscover quiescent timer expired\n");
3636         /* wake up worker thread */
3637         lpfc_worker_wake_up(phba);
3638 }
3639
3640 /**
3641  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3642  * @phba: pointer to lpfc hba data structure.
3643  * @acqe_link: pointer to the async link completion queue entry.
3644  *
3645  * This routine is to parse the SLI4 link-attention link fault code and
3646  * translate it into the base driver's read link attention mailbox command
3647  * status.
3648  *
3649  * Return: Link-attention status in terms of base driver's coding.
3650  **/
3651 static uint16_t
3652 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3653                            struct lpfc_acqe_link *acqe_link)
3654 {
3655         uint16_t latt_fault;
3656
3657         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3658         case LPFC_ASYNC_LINK_FAULT_NONE:
3659         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3660         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3661                 latt_fault = 0;
3662                 break;
3663         default:
3664                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3665                                 "0398 Invalid link fault code: x%x\n",
3666                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3667                 latt_fault = MBXERR_ERROR;
3668                 break;
3669         }
3670         return latt_fault;
3671 }
3672
3673 /**
3674  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3675  * @phba: pointer to lpfc hba data structure.
3676  * @acqe_link: pointer to the async link completion queue entry.
3677  *
3678  * This routine is to parse the SLI4 link attention type and translate it
3679  * into the base driver's link attention type coding.
3680  *
3681  * Return: Link attention type in terms of base driver's coding.
3682  **/
3683 static uint8_t
3684 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3685                           struct lpfc_acqe_link *acqe_link)
3686 {
3687         uint8_t att_type;
3688
3689         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3690         case LPFC_ASYNC_LINK_STATUS_DOWN:
3691         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3692                 att_type = LPFC_ATT_LINK_DOWN;
3693                 break;
3694         case LPFC_ASYNC_LINK_STATUS_UP:
3695                 /* Ignore physical link up events - wait for logical link up */
3696                 att_type = LPFC_ATT_RESERVED;
3697                 break;
3698         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3699                 att_type = LPFC_ATT_LINK_UP;
3700                 break;
3701         default:
3702                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3703                                 "0399 Invalid link attention type: x%x\n",
3704                                 bf_get(lpfc_acqe_link_status, acqe_link));
3705                 att_type = LPFC_ATT_RESERVED;
3706                 break;
3707         }
3708         return att_type;
3709 }
3710
3711 /**
3712  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3713  * @phba: pointer to lpfc hba data structure.
3714  * @acqe_link: pointer to the async link completion queue entry.
3715  *
3716  * This routine is to parse the SLI4 link-attention link speed and translate
3717  * it into the base driver's link-attention link speed coding.
3718  *
3719  * Return: Link-attention link speed in terms of base driver's coding.
3720  **/
3721 static uint8_t
3722 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3723                                 struct lpfc_acqe_link *acqe_link)
3724 {
3725         uint8_t link_speed;
3726
3727         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3728         case LPFC_ASYNC_LINK_SPEED_ZERO:
3729         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3730         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3731                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3732                 break;
3733         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3734                 link_speed = LPFC_LINK_SPEED_1GHZ;
3735                 break;
3736         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3737                 link_speed = LPFC_LINK_SPEED_10GHZ;
3738                 break;
3739         case LPFC_ASYNC_LINK_SPEED_20GBPS:
3740         case LPFC_ASYNC_LINK_SPEED_25GBPS:
3741         case LPFC_ASYNC_LINK_SPEED_40GBPS:
3742                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3743                 break;
3744         default:
3745                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3746                                 "0483 Invalid link-attention link speed: x%x\n",
3747                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3748                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3749                 break;
3750         }
3751         return link_speed;
3752 }
3753
3754 /**
3755  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
3756  * @phba: pointer to lpfc hba data structure.
3757  *
3758  * This routine is to get an SLI3 FC port's link speed in Mbps.
3759  *
3760  * Return: link speed in terms of Mbps.
3761  **/
3762 uint32_t
3763 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
3764 {
3765         uint32_t link_speed;
3766
3767         if (!lpfc_is_link_up(phba))
3768                 return 0;
3769
3770         switch (phba->fc_linkspeed) {
3771         case LPFC_LINK_SPEED_1GHZ:
3772                 link_speed = 1000;
3773                 break;
3774         case LPFC_LINK_SPEED_2GHZ:
3775                 link_speed = 2000;
3776                 break;
3777         case LPFC_LINK_SPEED_4GHZ:
3778                 link_speed = 4000;
3779                 break;
3780         case LPFC_LINK_SPEED_8GHZ:
3781                 link_speed = 8000;
3782                 break;
3783         case LPFC_LINK_SPEED_10GHZ:
3784                 link_speed = 10000;
3785                 break;
3786         case LPFC_LINK_SPEED_16GHZ:
3787                 link_speed = 16000;
3788                 break;
3789         default:
3790                 link_speed = 0;
3791         }
3792         return link_speed;
3793 }
3794
3795 /**
3796  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
3797  * @phba: pointer to lpfc hba data structure.
3798  * @evt_code: asynchronous event code.
3799  * @speed_code: asynchronous event link speed code.
3800  *
3801  * This routine is to parse the giving SLI4 async event link speed code into
3802  * value of Mbps for the link speed.
3803  *
3804  * Return: link speed in terms of Mbps.
3805  **/
3806 static uint32_t
3807 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
3808                            uint8_t speed_code)
3809 {
3810         uint32_t port_speed;
3811
3812         switch (evt_code) {
3813         case LPFC_TRAILER_CODE_LINK:
3814                 switch (speed_code) {
3815                 case LPFC_ASYNC_LINK_SPEED_ZERO:
3816                         port_speed = 0;
3817                         break;
3818                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
3819                         port_speed = 10;
3820                         break;
3821                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
3822                         port_speed = 100;
3823                         break;
3824                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
3825                         port_speed = 1000;
3826                         break;
3827                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
3828                         port_speed = 10000;
3829                         break;
3830                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
3831                         port_speed = 20000;
3832                         break;
3833                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
3834                         port_speed = 25000;
3835                         break;
3836                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
3837                         port_speed = 40000;
3838                         break;
3839                 default:
3840                         port_speed = 0;
3841                 }
3842                 break;
3843         case LPFC_TRAILER_CODE_FC:
3844                 switch (speed_code) {
3845                 case LPFC_FC_LA_SPEED_UNKNOWN:
3846                         port_speed = 0;
3847                         break;
3848                 case LPFC_FC_LA_SPEED_1G:
3849                         port_speed = 1000;
3850                         break;
3851                 case LPFC_FC_LA_SPEED_2G:
3852                         port_speed = 2000;
3853                         break;
3854                 case LPFC_FC_LA_SPEED_4G:
3855                         port_speed = 4000;
3856                         break;
3857                 case LPFC_FC_LA_SPEED_8G:
3858                         port_speed = 8000;
3859                         break;
3860                 case LPFC_FC_LA_SPEED_10G:
3861                         port_speed = 10000;
3862                         break;
3863                 case LPFC_FC_LA_SPEED_16G:
3864                         port_speed = 16000;
3865                         break;
3866                 case LPFC_FC_LA_SPEED_32G:
3867                         port_speed = 32000;
3868                         break;
3869                 default:
3870                         port_speed = 0;
3871                 }
3872                 break;
3873         default:
3874                 port_speed = 0;
3875         }
3876         return port_speed;
3877 }
3878
3879 /**
3880  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3881  * @phba: pointer to lpfc hba data structure.
3882  * @acqe_link: pointer to the async link completion queue entry.
3883  *
3884  * This routine is to handle the SLI4 asynchronous FCoE link event.
3885  **/
3886 static void
3887 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3888                          struct lpfc_acqe_link *acqe_link)
3889 {
3890         struct lpfc_dmabuf *mp;
3891         LPFC_MBOXQ_t *pmb;
3892         MAILBOX_t *mb;
3893         struct lpfc_mbx_read_top *la;
3894         uint8_t att_type;
3895         int rc;
3896
3897         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3898         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3899                 return;
3900         phba->fcoe_eventtag = acqe_link->event_tag;
3901         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3902         if (!pmb) {
3903                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3904                                 "0395 The mboxq allocation failed\n");
3905                 return;
3906         }
3907         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3908         if (!mp) {
3909                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3910                                 "0396 The lpfc_dmabuf allocation failed\n");
3911                 goto out_free_pmb;
3912         }
3913         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3914         if (!mp->virt) {
3915                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3916                                 "0397 The mbuf allocation failed\n");
3917                 goto out_free_dmabuf;
3918         }
3919
3920         /* Cleanup any outstanding ELS commands */
3921         lpfc_els_flush_all_cmd(phba);
3922
3923         /* Block ELS IOCBs until we have done process link event */
3924         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3925
3926         /* Update link event statistics */
3927         phba->sli.slistat.link_event++;
3928
3929         /* Create lpfc_handle_latt mailbox command from link ACQE */
3930         lpfc_read_topology(phba, pmb, mp);
3931         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3932         pmb->vport = phba->pport;
3933
3934         /* Keep the link status for extra SLI4 state machine reference */
3935         phba->sli4_hba.link_state.speed =
3936                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
3937                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3938         phba->sli4_hba.link_state.duplex =
3939                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3940         phba->sli4_hba.link_state.status =
3941                                 bf_get(lpfc_acqe_link_status, acqe_link);
3942         phba->sli4_hba.link_state.type =
3943                                 bf_get(lpfc_acqe_link_type, acqe_link);
3944         phba->sli4_hba.link_state.number =
3945                                 bf_get(lpfc_acqe_link_number, acqe_link);
3946         phba->sli4_hba.link_state.fault =
3947                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3948         phba->sli4_hba.link_state.logical_speed =
3949                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
3950
3951         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3952                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3953                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3954                         "Logical speed:%dMbps Fault:%d\n",
3955                         phba->sli4_hba.link_state.speed,
3956                         phba->sli4_hba.link_state.topology,
3957                         phba->sli4_hba.link_state.status,
3958                         phba->sli4_hba.link_state.type,
3959                         phba->sli4_hba.link_state.number,
3960                         phba->sli4_hba.link_state.logical_speed,
3961                         phba->sli4_hba.link_state.fault);
3962         /*
3963          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3964          * topology info. Note: Optional for non FC-AL ports.
3965          */
3966         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3967                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3968                 if (rc == MBX_NOT_FINISHED)
3969                         goto out_free_dmabuf;
3970                 return;
3971         }
3972         /*
3973          * For FCoE Mode: fill in all the topology information we need and call
3974          * the READ_TOPOLOGY completion routine to continue without actually
3975          * sending the READ_TOPOLOGY mailbox command to the port.
3976          */
3977         /* Parse and translate status field */
3978         mb = &pmb->u.mb;
3979         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3980
3981         /* Parse and translate link attention fields */
3982         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3983         la->eventTag = acqe_link->event_tag;
3984         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3985         bf_set(lpfc_mbx_read_top_link_spd, la,
3986                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3987
3988         /* Fake the the following irrelvant fields */
3989         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3990         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3991         bf_set(lpfc_mbx_read_top_il, la, 0);
3992         bf_set(lpfc_mbx_read_top_pb, la, 0);
3993         bf_set(lpfc_mbx_read_top_fa, la, 0);
3994         bf_set(lpfc_mbx_read_top_mm, la, 0);
3995
3996         /* Invoke the lpfc_handle_latt mailbox command callback function */
3997         lpfc_mbx_cmpl_read_topology(phba, pmb);
3998
3999         return;
4000
4001 out_free_dmabuf:
4002         kfree(mp);
4003 out_free_pmb:
4004         mempool_free(pmb, phba->mbox_mem_pool);
4005 }
4006
4007 /**
4008  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
4009  * @phba: pointer to lpfc hba data structure.
4010  * @acqe_fc: pointer to the async fc completion queue entry.
4011  *
4012  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
4013  * that the event was received and then issue a read_topology mailbox command so
4014  * that the rest of the driver will treat it the same as SLI3.
4015  **/
4016 static void
4017 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
4018 {
4019         struct lpfc_dmabuf *mp;
4020         LPFC_MBOXQ_t *pmb;
4021         int rc;
4022
4023         if (bf_get(lpfc_trailer_type, acqe_fc) !=
4024             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
4025                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4026                                 "2895 Non FC link Event detected.(%d)\n",
4027                                 bf_get(lpfc_trailer_type, acqe_fc));
4028                 return;
4029         }
4030         /* Keep the link status for extra SLI4 state machine reference */
4031         phba->sli4_hba.link_state.speed =
4032                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
4033                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
4034         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
4035         phba->sli4_hba.link_state.topology =
4036                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
4037         phba->sli4_hba.link_state.status =
4038                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
4039         phba->sli4_hba.link_state.type =
4040                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
4041         phba->sli4_hba.link_state.number =
4042                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
4043         phba->sli4_hba.link_state.fault =
4044                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
4045         phba->sli4_hba.link_state.logical_speed =
4046                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
4047         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4048                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
4049                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
4050                         "%dMbps Fault:%d\n",
4051                         phba->sli4_hba.link_state.speed,
4052                         phba->sli4_hba.link_state.topology,
4053                         phba->sli4_hba.link_state.status,
4054                         phba->sli4_hba.link_state.type,
4055                         phba->sli4_hba.link_state.number,
4056                         phba->sli4_hba.link_state.logical_speed,
4057                         phba->sli4_hba.link_state.fault);
4058         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4059         if (!pmb) {
4060                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4061                                 "2897 The mboxq allocation failed\n");
4062                 return;
4063         }
4064         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4065         if (!mp) {
4066                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4067                                 "2898 The lpfc_dmabuf allocation failed\n");
4068                 goto out_free_pmb;
4069         }
4070         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
4071         if (!mp->virt) {
4072                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4073                                 "2899 The mbuf allocation failed\n");
4074                 goto out_free_dmabuf;
4075         }
4076
4077         /* Cleanup any outstanding ELS commands */
4078         lpfc_els_flush_all_cmd(phba);
4079
4080         /* Block ELS IOCBs until we have done process link event */
4081         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
4082
4083         /* Update link event statistics */
4084         phba->sli.slistat.link_event++;
4085
4086         /* Create lpfc_handle_latt mailbox command from link ACQE */
4087         lpfc_read_topology(phba, pmb, mp);
4088         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
4089         pmb->vport = phba->pport;
4090
4091         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4092         if (rc == MBX_NOT_FINISHED)
4093                 goto out_free_dmabuf;
4094         return;
4095
4096 out_free_dmabuf:
4097         kfree(mp);
4098 out_free_pmb:
4099         mempool_free(pmb, phba->mbox_mem_pool);
4100 }
4101
4102 /**
4103  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
4104  * @phba: pointer to lpfc hba data structure.
4105  * @acqe_fc: pointer to the async SLI completion queue entry.
4106  *
4107  * This routine is to handle the SLI4 asynchronous SLI events.
4108  **/
4109 static void
4110 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
4111 {
4112         char port_name;
4113         char message[128];
4114         uint8_t status;
4115         uint8_t evt_type;
4116         struct temp_event temp_event_data;
4117         struct lpfc_acqe_misconfigured_event *misconfigured;
4118         struct Scsi_Host  *shost;
4119
4120         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
4121
4122         /* Special case Lancer */
4123         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
4124                  LPFC_SLI_INTF_IF_TYPE_2) {
4125                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4126                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
4127                                 "x%08x SLI Event Type:%d\n",
4128                                 acqe_sli->event_data1, acqe_sli->event_data2,
4129                                 evt_type);
4130                 return;
4131         }
4132
4133         port_name = phba->Port[0];
4134         if (port_name == 0x00)
4135                 port_name = '?'; /* get port name is empty */
4136
4137         switch (evt_type) {
4138         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
4139                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4140                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
4141                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4142
4143                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4144                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
4145                                 acqe_sli->event_data1, port_name);
4146
4147                 shost = lpfc_shost_from_vport(phba->pport);
4148                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4149                                           sizeof(temp_event_data),
4150                                           (char *)&temp_event_data,
4151                                           SCSI_NL_VID_TYPE_PCI
4152                                           | PCI_VENDOR_ID_EMULEX);
4153                 break;
4154         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
4155                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
4156                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
4157                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
4158
4159                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4160                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
4161                                 acqe_sli->event_data1, port_name);
4162
4163                 shost = lpfc_shost_from_vport(phba->pport);
4164                 fc_host_post_vendor_event(shost, fc_get_event_number(),
4165                                           sizeof(temp_event_data),
4166                                           (char *)&temp_event_data,
4167                                           SCSI_NL_VID_TYPE_PCI
4168                                           | PCI_VENDOR_ID_EMULEX);
4169                 break;
4170         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
4171                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
4172                                         &acqe_sli->event_data1;
4173
4174                 /* fetch the status for this port */
4175                 switch (phba->sli4_hba.lnk_info.lnk_no) {
4176                 case LPFC_LINK_NUMBER_0:
4177                         status = bf_get(lpfc_sli_misconfigured_port0,
4178                                         &misconfigured->theEvent);
4179                         break;
4180                 case LPFC_LINK_NUMBER_1:
4181                         status = bf_get(lpfc_sli_misconfigured_port1,
4182                                         &misconfigured->theEvent);
4183                         break;
4184                 case LPFC_LINK_NUMBER_2:
4185                         status = bf_get(lpfc_sli_misconfigured_port2,
4186                                         &misconfigured->theEvent);
4187                         break;
4188                 case LPFC_LINK_NUMBER_3:
4189                         status = bf_get(lpfc_sli_misconfigured_port3,
4190                                         &misconfigured->theEvent);
4191                         break;
4192                 default:
4193                         status = ~LPFC_SLI_EVENT_STATUS_VALID;
4194                         break;
4195                 }
4196
4197                 switch (status) {
4198                 case LPFC_SLI_EVENT_STATUS_VALID:
4199                         return; /* no message if the sfp is okay */
4200                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
4201                         sprintf(message, "Optics faulted/incorrectly "
4202                                 "installed/not installed - Reseat optics, "
4203                                 "if issue not resolved, replace.");
4204                         break;
4205                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
4206                         sprintf(message,
4207                                 "Optics of two types installed - Remove one "
4208                                 "optic or install matching pair of optics.");
4209                         break;
4210                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
4211                         sprintf(message, "Incompatible optics - Replace with "
4212                                 "compatible optics for card to function.");
4213                         break;
4214                 default:
4215                         /* firmware is reporting a status we don't know about */
4216                         sprintf(message, "Unknown event status x%02x", status);
4217                         break;
4218                 }
4219
4220                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4221                                 "3176 Misconfigured Physical Port - "
4222                                 "Port Name %c %s\n", port_name, message);
4223                 break;
4224         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
4225                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4226                                 "3192 Remote DPort Test Initiated - "
4227                                 "Event Data1:x%08x Event Data2: x%08x\n",
4228                                 acqe_sli->event_data1, acqe_sli->event_data2);
4229                 break;
4230         default:
4231                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4232                                 "3193 Async SLI event - Event Data1:x%08x Event Data2:"
4233                                 "x%08x SLI Event Type:%d\n",
4234                                 acqe_sli->event_data1, acqe_sli->event_data2,
4235                                 evt_type);
4236                 break;
4237         }
4238 }
4239
4240 /**
4241  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
4242  * @vport: pointer to vport data structure.
4243  *
4244  * This routine is to perform Clear Virtual Link (CVL) on a vport in
4245  * response to a CVL event.
4246  *
4247  * Return the pointer to the ndlp with the vport if successful, otherwise
4248  * return NULL.
4249  **/
4250 static struct lpfc_nodelist *
4251 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
4252 {
4253         struct lpfc_nodelist *ndlp;
4254         struct Scsi_Host *shost;
4255         struct lpfc_hba *phba;
4256
4257         if (!vport)
4258                 return NULL;
4259         phba = vport->phba;
4260         if (!phba)
4261                 return NULL;
4262         ndlp = lpfc_findnode_did(vport, Fabric_DID);
4263         if (!ndlp) {
4264                 /* Cannot find existing Fabric ndlp, so allocate a new one */
4265                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
4266                 if (!ndlp)
4267                         return 0;
4268                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
4269                 /* Set the node type */
4270                 ndlp->nlp_type |= NLP_FABRIC;
4271                 /* Put ndlp onto node list */
4272                 lpfc_enqueue_node(vport, ndlp);
4273         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
4274                 /* re-setup ndlp without removing from node list */
4275                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
4276                 if (!ndlp)
4277                         return 0;
4278         }
4279         if ((phba->pport->port_state < LPFC_FLOGI) &&
4280                 (phba->pport->port_state != LPFC_VPORT_FAILED))
4281                 return NULL;
4282         /* If virtual link is not yet instantiated ignore CVL */
4283         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
4284                 && (vport->port_state != LPFC_VPORT_FAILED))
4285                 return NULL;
4286         shost = lpfc_shost_from_vport(vport);
4287         if (!shost)
4288                 return NULL;
4289         lpfc_linkdown_port(vport);
4290         lpfc_cleanup_pending_mbox(vport);
4291         spin_lock_irq(shost->host_lock);
4292         vport->fc_flag |= FC_VPORT_CVL_RCVD;
4293         spin_unlock_irq(shost->host_lock);
4294
4295         return ndlp;
4296 }
4297
4298 /**
4299  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
4300  * @vport: pointer to lpfc hba data structure.
4301  *
4302  * This routine is to perform Clear Virtual Link (CVL) on all vports in
4303  * response to a FCF dead event.
4304  **/
4305 static void
4306 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
4307 {
4308         struct lpfc_vport **vports;
4309         int i;
4310
4311         vports = lpfc_create_vport_work_array(phba);
4312         if (vports)
4313                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
4314                         lpfc_sli4_perform_vport_cvl(vports[i]);
4315         lpfc_destroy_vport_work_array(phba, vports);
4316 }
4317
4318 /**
4319  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
4320  * @phba: pointer to lpfc hba data structure.
4321  * @acqe_link: pointer to the async fcoe completion queue entry.
4322  *
4323  * This routine is to handle the SLI4 asynchronous fcoe event.
4324  **/
4325 static void
4326 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
4327                         struct lpfc_acqe_fip *acqe_fip)
4328 {
4329         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
4330         int rc;
4331         struct lpfc_vport *vport;
4332         struct lpfc_nodelist *ndlp;
4333         struct Scsi_Host  *shost;
4334         int active_vlink_present;
4335         struct lpfc_vport **vports;
4336         int i;
4337
4338         phba->fc_eventTag = acqe_fip->event_tag;
4339         phba->fcoe_eventtag = acqe_fip->event_tag;
4340         switch (event_type) {
4341         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
4342         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
4343                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
4344                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4345                                         LOG_DISCOVERY,
4346                                         "2546 New FCF event, evt_tag:x%x, "
4347                                         "index:x%x\n",
4348                                         acqe_fip->event_tag,
4349                                         acqe_fip->index);
4350                 else
4351                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
4352                                         LOG_DISCOVERY,
4353                                         "2788 FCF param modified event, "
4354                                         "evt_tag:x%x, index:x%x\n",
4355                                         acqe_fip->event_tag,
4356                                         acqe_fip->index);
4357                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4358                         /*
4359                          * During period of FCF discovery, read the FCF
4360                          * table record indexed by the event to update
4361                          * FCF roundrobin failover eligible FCF bmask.
4362                          */
4363                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4364                                         LOG_DISCOVERY,
4365                                         "2779 Read FCF (x%x) for updating "
4366                                         "roundrobin FCF failover bmask\n",
4367                                         acqe_fip->index);
4368                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
4369                 }
4370
4371                 /* If the FCF discovery is in progress, do nothing. */
4372                 spin_lock_irq(&phba->hbalock);
4373                 if (phba->hba_flag & FCF_TS_INPROG) {
4374                         spin_unlock_irq(&phba->hbalock);
4375                         break;
4376                 }
4377                 /* If fast FCF failover rescan event is pending, do nothing */
4378                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
4379                         spin_unlock_irq(&phba->hbalock);
4380                         break;
4381                 }
4382
4383                 /* If the FCF has been in discovered state, do nothing. */
4384                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
4385                         spin_unlock_irq(&phba->hbalock);
4386                         break;
4387                 }
4388                 spin_unlock_irq(&phba->hbalock);
4389
4390                 /* Otherwise, scan the entire FCF table and re-discover SAN */
4391                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4392                                 "2770 Start FCF table scan per async FCF "
4393                                 "event, evt_tag:x%x, index:x%x\n",
4394                                 acqe_fip->event_tag, acqe_fip->index);
4395                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
4396                                                      LPFC_FCOE_FCF_GET_FIRST);
4397                 if (rc)
4398                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4399                                         "2547 Issue FCF scan read FCF mailbox "
4400                                         "command failed (x%x)\n", rc);
4401                 break;
4402
4403         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
4404                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4405                         "2548 FCF Table full count 0x%x tag 0x%x\n",
4406                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
4407                         acqe_fip->event_tag);
4408                 break;
4409
4410         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
4411                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4412                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4413                         "2549 FCF (x%x) disconnected from network, "
4414                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
4415                 /*
4416                  * If we are in the middle of FCF failover process, clear
4417                  * the corresponding FCF bit in the roundrobin bitmap.
4418                  */
4419                 spin_lock_irq(&phba->hbalock);
4420                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4421                         spin_unlock_irq(&phba->hbalock);
4422                         /* Update FLOGI FCF failover eligible FCF bmask */
4423                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
4424                         break;
4425                 }
4426                 spin_unlock_irq(&phba->hbalock);
4427
4428                 /* If the event is not for currently used fcf do nothing */
4429                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
4430                         break;
4431
4432                 /*
4433                  * Otherwise, request the port to rediscover the entire FCF
4434                  * table for a fast recovery from case that the current FCF
4435                  * is no longer valid as we are not in the middle of FCF
4436                  * failover process already.
4437                  */
4438                 spin_lock_irq(&phba->hbalock);
4439                 /* Mark the fast failover process in progress */
4440                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4441                 spin_unlock_irq(&phba->hbalock);
4442
4443                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4444                                 "2771 Start FCF fast failover process due to "
4445                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4446                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4447                 rc = lpfc_sli4_redisc_fcf_table(phba);
4448                 if (rc) {
4449                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4450                                         LOG_DISCOVERY,
4451                                         "2772 Issue FCF rediscover mabilbox "
4452                                         "command failed, fail through to FCF "
4453                                         "dead event\n");
4454                         spin_lock_irq(&phba->hbalock);
4455                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4456                         spin_unlock_irq(&phba->hbalock);
4457                         /*
4458                          * Last resort will fail over by treating this
4459                          * as a link down to FCF registration.
4460                          */
4461                         lpfc_sli4_fcf_dead_failthrough(phba);
4462                 } else {
4463                         /* Reset FCF roundrobin bmask for new discovery */
4464                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4465                         /*
4466                          * Handling fast FCF failover to a DEAD FCF event is
4467                          * considered equalivant to receiving CVL to all vports.
4468                          */
4469                         lpfc_sli4_perform_all_vport_cvl(phba);
4470                 }
4471                 break;
4472         case LPFC_FIP_EVENT_TYPE_CVL:
4473                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4474                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4475                         "2718 Clear Virtual Link Received for VPI 0x%x"
4476                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4477
4478                 vport = lpfc_find_vport_by_vpid(phba,
4479                                                 acqe_fip->index);
4480                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4481                 if (!ndlp)
4482                         break;
4483                 active_vlink_present = 0;
4484
4485                 vports = lpfc_create_vport_work_array(phba);
4486                 if (vports) {
4487                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4488                                         i++) {
4489                                 if ((!(vports[i]->fc_flag &
4490                                         FC_VPORT_CVL_RCVD)) &&
4491                                         (vports[i]->port_state > LPFC_FDISC)) {
4492                                         active_vlink_present = 1;
4493                                         break;
4494                                 }
4495                         }
4496                         lpfc_destroy_vport_work_array(phba, vports);
4497                 }
4498
4499                 /*
4500                  * Don't re-instantiate if vport is marked for deletion.
4501                  * If we are here first then vport_delete is going to wait
4502                  * for discovery to complete.
4503                  */
4504                 if (!(vport->load_flag & FC_UNLOADING) &&
4505                                         active_vlink_present) {
4506                         /*
4507                          * If there are other active VLinks present,
4508                          * re-instantiate the Vlink using FDISC.
4509                          */
4510                         mod_timer(&ndlp->nlp_delayfunc,
4511                                   jiffies + msecs_to_jiffies(1000));
4512                         shost = lpfc_shost_from_vport(vport);
4513                         spin_lock_irq(shost->host_lock);
4514                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4515                         spin_unlock_irq(shost->host_lock);
4516                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4517                         vport->port_state = LPFC_FDISC;
4518                 } else {
4519                         /*
4520                          * Otherwise, we request port to rediscover
4521                          * the entire FCF table for a fast recovery
4522                          * from possible case that the current FCF
4523                          * is no longer valid if we are not already
4524                          * in the FCF failover process.
4525                          */
4526                         spin_lock_irq(&phba->hbalock);
4527                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4528                                 spin_unlock_irq(&phba->hbalock);
4529                                 break;
4530                         }
4531                         /* Mark the fast failover process in progress */
4532                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4533                         spin_unlock_irq(&phba->hbalock);
4534                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4535                                         LOG_DISCOVERY,
4536                                         "2773 Start FCF failover per CVL, "
4537                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4538                         rc = lpfc_sli4_redisc_fcf_table(phba);
4539                         if (rc) {
4540                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4541                                                 LOG_DISCOVERY,
4542                                                 "2774 Issue FCF rediscover "
4543                                                 "mabilbox command failed, "
4544                                                 "through to CVL event\n");
4545                                 spin_lock_irq(&phba->hbalock);
4546                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4547                                 spin_unlock_irq(&phba->hbalock);
4548                                 /*
4549                                  * Last resort will be re-try on the
4550                                  * the current registered FCF entry.
4551                                  */
4552                                 lpfc_retry_pport_discovery(phba);
4553                         } else
4554                                 /*
4555                                  * Reset FCF roundrobin bmask for new
4556                                  * discovery.
4557                                  */
4558                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4559                 }
4560                 break;
4561         default:
4562                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4563                         "0288 Unknown FCoE event type 0x%x event tag "
4564                         "0x%x\n", event_type, acqe_fip->event_tag);
4565                 break;
4566         }
4567 }
4568
4569 /**
4570  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4571  * @phba: pointer to lpfc hba data structure.
4572  * @acqe_link: pointer to the async dcbx completion queue entry.
4573  *
4574  * This routine is to handle the SLI4 asynchronous dcbx event.
4575  **/
4576 static void
4577 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4578                          struct lpfc_acqe_dcbx *acqe_dcbx)
4579 {
4580         phba->fc_eventTag = acqe_dcbx->event_tag;
4581         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4582                         "0290 The SLI4 DCBX asynchronous event is not "
4583                         "handled yet\n");
4584 }
4585
4586 /**
4587  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4588  * @phba: pointer to lpfc hba data structure.
4589  * @acqe_link: pointer to the async grp5 completion queue entry.
4590  *
4591  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4592  * is an asynchronous notified of a logical link speed change.  The Port
4593  * reports the logical link speed in units of 10Mbps.
4594  **/
4595 static void
4596 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4597                          struct lpfc_acqe_grp5 *acqe_grp5)
4598 {
4599         uint16_t prev_ll_spd;
4600
4601         phba->fc_eventTag = acqe_grp5->event_tag;
4602         phba->fcoe_eventtag = acqe_grp5->event_tag;
4603         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4604         phba->sli4_hba.link_state.logical_speed =
4605                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
4606         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4607                         "2789 GRP5 Async Event: Updating logical link speed "
4608                         "from %dMbps to %dMbps\n", prev_ll_spd,
4609                         phba->sli4_hba.link_state.logical_speed);
4610 }
4611
4612 /**
4613  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4614  * @phba: pointer to lpfc hba data structure.
4615  *
4616  * This routine is invoked by the worker thread to process all the pending
4617  * SLI4 asynchronous events.
4618  **/
4619 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4620 {
4621         struct lpfc_cq_event *cq_event;
4622
4623         /* First, declare the async event has been handled */
4624         spin_lock_irq(&phba->hbalock);
4625         phba->hba_flag &= ~ASYNC_EVENT;
4626         spin_unlock_irq(&phba->hbalock);
4627         /* Now, handle all the async events */
4628         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4629                 /* Get the first event from the head of the event queue */
4630                 spin_lock_irq(&phba->hbalock);
4631                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4632                                  cq_event, struct lpfc_cq_event, list);
4633                 spin_unlock_irq(&phba->hbalock);
4634                 /* Process the asynchronous event */
4635                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4636                 case LPFC_TRAILER_CODE_LINK:
4637                         lpfc_sli4_async_link_evt(phba,
4638                                                  &cq_event->cqe.acqe_link);
4639                         break;
4640                 case LPFC_TRAILER_CODE_FCOE:
4641                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4642                         break;
4643                 case LPFC_TRAILER_CODE_DCBX:
4644                         lpfc_sli4_async_dcbx_evt(phba,
4645                                                  &cq_event->cqe.acqe_dcbx);
4646                         break;
4647                 case LPFC_TRAILER_CODE_GRP5:
4648                         lpfc_sli4_async_grp5_evt(phba,
4649                                                  &cq_event->cqe.acqe_grp5);
4650                         break;
4651                 case LPFC_TRAILER_CODE_FC:
4652                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4653                         break;
4654                 case LPFC_TRAILER_CODE_SLI:
4655                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4656                         break;
4657                 default:
4658                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4659                                         "1804 Invalid asynchrous event code: "
4660                                         "x%x\n", bf_get(lpfc_trailer_code,
4661                                         &cq_event->cqe.mcqe_cmpl));
4662                         break;
4663                 }
4664                 /* Free the completion event processed to the free pool */
4665                 lpfc_sli4_cq_event_release(phba, cq_event);
4666         }
4667 }
4668
4669 /**
4670  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4671  * @phba: pointer to lpfc hba data structure.
4672  *
4673  * This routine is invoked by the worker thread to process FCF table
4674  * rediscovery pending completion event.
4675  **/
4676 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4677 {
4678         int rc;
4679
4680         spin_lock_irq(&phba->hbalock);
4681         /* Clear FCF rediscovery timeout event */
4682         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4683         /* Clear driver fast failover FCF record flag */
4684         phba->fcf.failover_rec.flag = 0;
4685         /* Set state for FCF fast failover */
4686         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4687         spin_unlock_irq(&phba->hbalock);
4688
4689         /* Scan FCF table from the first entry to re-discover SAN */
4690         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4691                         "2777 Start post-quiescent FCF table scan\n");
4692         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4693         if (rc)
4694                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4695                                 "2747 Issue FCF scan read FCF mailbox "
4696                                 "command failed 0x%x\n", rc);
4697 }
4698
4699 /**
4700  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4701  * @phba: pointer to lpfc hba data structure.
4702  * @dev_grp: The HBA PCI-Device group number.
4703  *
4704  * This routine is invoked to set up the per HBA PCI-Device group function
4705  * API jump table entries.
4706  *
4707  * Return: 0 if success, otherwise -ENODEV
4708  **/
4709 int
4710 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4711 {
4712         int rc;
4713
4714         /* Set up lpfc PCI-device group */
4715         phba->pci_dev_grp = dev_grp;
4716
4717         /* The LPFC_PCI_DEV_OC uses SLI4 */
4718         if (dev_grp == LPFC_PCI_DEV_OC)
4719                 phba->sli_rev = LPFC_SLI_REV4;
4720
4721         /* Set up device INIT API function jump table */
4722         rc = lpfc_init_api_table_setup(phba, dev_grp);
4723         if (rc)
4724                 return -ENODEV;
4725         /* Set up SCSI API function jump table */
4726         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4727         if (rc)
4728                 return -ENODEV;
4729         /* Set up SLI API function jump table */
4730         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4731         if (rc)
4732                 return -ENODEV;
4733         /* Set up MBOX API function jump table */
4734         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4735         if (rc)
4736                 return -ENODEV;
4737
4738         return 0;
4739 }
4740
4741 /**
4742  * lpfc_log_intr_mode - Log the active interrupt mode
4743  * @phba: pointer to lpfc hba data structure.
4744  * @intr_mode: active interrupt mode adopted.
4745  *
4746  * This routine it invoked to log the currently used active interrupt mode
4747  * to the device.
4748  **/
4749 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4750 {
4751         switch (intr_mode) {
4752         case 0:
4753                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4754                                 "0470 Enable INTx interrupt mode.\n");
4755                 break;
4756         case 1:
4757                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4758                                 "0481 Enabled MSI interrupt mode.\n");
4759                 break;
4760         case 2:
4761                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4762                                 "0480 Enabled MSI-X interrupt mode.\n");
4763                 break;
4764         default:
4765                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4766                                 "0482 Illegal interrupt mode.\n");
4767                 break;
4768         }
4769         return;
4770 }
4771
4772 /**
4773  * lpfc_enable_pci_dev - Enable a generic PCI device.
4774  * @phba: pointer to lpfc hba data structure.
4775  *
4776  * This routine is invoked to enable the PCI device that is common to all
4777  * PCI devices.
4778  *
4779  * Return codes
4780  *      0 - successful
4781  *      other values - error
4782  **/
4783 static int
4784 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4785 {
4786         struct pci_dev *pdev;
4787         int bars = 0;
4788
4789         /* Obtain PCI device reference */
4790         if (!phba->pcidev)
4791                 goto out_error;
4792         else
4793                 pdev = phba->pcidev;
4794         /* Select PCI BARs */
4795         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4796         /* Enable PCI device */
4797         if (pci_enable_device_mem(pdev))
4798                 goto out_error;
4799         /* Request PCI resource for the device */
4800         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4801                 goto out_disable_device;
4802         /* Set up device as PCI master and save state for EEH */
4803         pci_set_master(pdev);
4804         pci_try_set_mwi(pdev);
4805         pci_save_state(pdev);
4806
4807         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4808         if (pci_is_pcie(pdev))
4809                 pdev->needs_freset = 1;
4810
4811         return 0;
4812
4813 out_disable_device:
4814         pci_disable_device(pdev);
4815 out_error:
4816         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4817                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4818         return -ENODEV;
4819 }
4820
4821 /**
4822  * lpfc_disable_pci_dev - Disable a generic PCI device.
4823  * @phba: pointer to lpfc hba data structure.
4824  *
4825  * This routine is invoked to disable the PCI device that is common to all
4826  * PCI devices.
4827  **/
4828 static void
4829 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4830 {
4831         struct pci_dev *pdev;
4832         int bars;
4833
4834         /* Obtain PCI device reference */
4835         if (!phba->pcidev)
4836                 return;
4837         else
4838                 pdev = phba->pcidev;
4839         /* Select PCI BARs */
4840         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4841         /* Release PCI resource and disable PCI device */
4842         pci_release_selected_regions(pdev, bars);
4843         pci_disable_device(pdev);
4844
4845         return;
4846 }
4847
4848 /**
4849  * lpfc_reset_hba - Reset a hba
4850  * @phba: pointer to lpfc hba data structure.
4851  *
4852  * This routine is invoked to reset a hba device. It brings the HBA
4853  * offline, performs a board restart, and then brings the board back
4854  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4855  * on outstanding mailbox commands.
4856  **/
4857 void
4858 lpfc_reset_hba(struct lpfc_hba *phba)
4859 {
4860         /* If resets are disabled then set error state and return. */
4861         if (!phba->cfg_enable_hba_reset) {
4862                 phba->link_state = LPFC_HBA_ERROR;
4863                 return;
4864         }
4865         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
4866                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4867         else
4868                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
4869         lpfc_offline(phba);
4870         lpfc_sli_brdrestart(phba);
4871         lpfc_online(phba);
4872         lpfc_unblock_mgmt_io(phba);
4873 }
4874
4875 /**
4876  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4877  * @phba: pointer to lpfc hba data structure.
4878  *
4879  * This function enables the PCI SR-IOV virtual functions to a physical
4880  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4881  * enable the number of virtual functions to the physical function. As
4882  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4883  * API call does not considered as an error condition for most of the device.
4884  **/
4885 uint16_t
4886 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4887 {
4888         struct pci_dev *pdev = phba->pcidev;
4889         uint16_t nr_virtfn;
4890         int pos;
4891
4892         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4893         if (pos == 0)
4894                 return 0;
4895
4896         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4897         return nr_virtfn;
4898 }
4899
4900 /**
4901  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4902  * @phba: pointer to lpfc hba data structure.
4903  * @nr_vfn: number of virtual functions to be enabled.
4904  *
4905  * This function enables the PCI SR-IOV virtual functions to a physical
4906  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4907  * enable the number of virtual functions to the physical function. As
4908  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4909  * API call does not considered as an error condition for most of the device.
4910  **/
4911 int
4912 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4913 {
4914         struct pci_dev *pdev = phba->pcidev;
4915         uint16_t max_nr_vfn;
4916         int rc;
4917
4918         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4919         if (nr_vfn > max_nr_vfn) {
4920                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4921                                 "3057 Requested vfs (%d) greater than "
4922                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4923                 return -EINVAL;
4924         }
4925
4926         rc = pci_enable_sriov(pdev, nr_vfn);
4927         if (rc) {
4928                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4929                                 "2806 Failed to enable sriov on this device "
4930                                 "with vfn number nr_vf:%d, rc:%d\n",
4931                                 nr_vfn, rc);
4932         } else
4933                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4934                                 "2807 Successful enable sriov on this device "
4935                                 "with vfn number nr_vf:%d\n", nr_vfn);
4936         return rc;
4937 }
4938
4939 /**
4940  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4941  * @phba: pointer to lpfc hba data structure.
4942  *
4943  * This routine is invoked to set up the driver internal resources specific to
4944  * support the SLI-3 HBA device it attached to.
4945  *
4946  * Return codes
4947  *      0 - successful
4948  *      other values - error
4949  **/
4950 static int
4951 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4952 {
4953         struct lpfc_sli *psli;
4954         int rc;
4955
4956         /*
4957          * Initialize timers used by driver
4958          */
4959
4960         /* Heartbeat timer */
4961         init_timer(&phba->hb_tmofunc);
4962         phba->hb_tmofunc.function = lpfc_hb_timeout;
4963         phba->hb_tmofunc.data = (unsigned long)phba;
4964
4965         psli = &phba->sli;
4966         /* MBOX heartbeat timer */
4967         init_timer(&psli->mbox_tmo);
4968         psli->mbox_tmo.function = lpfc_mbox_timeout;
4969         psli->mbox_tmo.data = (unsigned long) phba;
4970         /* FCP polling mode timer */
4971         init_timer(&phba->fcp_poll_timer);
4972         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4973         phba->fcp_poll_timer.data = (unsigned long) phba;
4974         /* Fabric block timer */
4975         init_timer(&phba->fabric_block_timer);
4976         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4977         phba->fabric_block_timer.data = (unsigned long) phba;
4978         /* EA polling mode timer */
4979         init_timer(&phba->eratt_poll);
4980         phba->eratt_poll.function = lpfc_poll_eratt;
4981         phba->eratt_poll.data = (unsigned long) phba;
4982
4983         /* Host attention work mask setup */
4984         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4985         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4986
4987         /* Get all the module params for configuring this host */
4988         lpfc_get_cfgparam(phba);
4989         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4990                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4991                 /* check for menlo minimum sg count */
4992                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4993                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4994         }
4995
4996         if (!phba->sli.ring)
4997                 phba->sli.ring = kzalloc(LPFC_SLI3_MAX_RING *
4998                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
4999         if (!phba->sli.ring)
5000                 return -ENOMEM;
5001
5002         /*
5003          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5004          * used to create the sg_dma_buf_pool must be dynamically calculated.
5005          */
5006
5007         /* Initialize the host templates the configured values. */
5008         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5009         lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt;
5010
5011         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
5012         if (phba->cfg_enable_bg) {
5013                 /*
5014                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5015                  * the FCP rsp, and a BDE for each. Sice we have no control
5016                  * over how many protection data segments the SCSI Layer
5017                  * will hand us (ie: there could be one for every block
5018                  * in the IO), we just allocate enough BDEs to accomidate
5019                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5020                  * minimize the risk of running out.
5021                  */
5022                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5023                         sizeof(struct fcp_rsp) +
5024                         (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64));
5025
5026                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
5027                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
5028
5029                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
5030                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
5031         } else {
5032                 /*
5033                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5034                  * the FCP rsp, a BDE for each, and a BDE for up to
5035                  * cfg_sg_seg_cnt data segments.
5036                  */
5037                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5038                         sizeof(struct fcp_rsp) +
5039                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
5040
5041                 /* Total BDEs in BPL for scsi_sg_list */
5042                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5043         }
5044
5045         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5046                         "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
5047                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5048                         phba->cfg_total_seg_cnt);
5049
5050         phba->max_vpi = LPFC_MAX_VPI;
5051         /* This will be set to correct value after config_port mbox */
5052         phba->max_vports = 0;
5053
5054         /*
5055          * Initialize the SLI Layer to run with lpfc HBAs.
5056          */
5057         lpfc_sli_setup(phba);
5058         lpfc_sli_queue_setup(phba);
5059
5060         /* Allocate device driver memory */
5061         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
5062                 return -ENOMEM;
5063
5064         /*
5065          * Enable sr-iov virtual functions if supported and configured
5066          * through the module parameter.
5067          */
5068         if (phba->cfg_sriov_nr_virtfn > 0) {
5069                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5070                                                  phba->cfg_sriov_nr_virtfn);
5071                 if (rc) {
5072                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5073                                         "2808 Requested number of SR-IOV "
5074                                         "virtual functions (%d) is not "
5075                                         "supported\n",
5076                                         phba->cfg_sriov_nr_virtfn);
5077                         phba->cfg_sriov_nr_virtfn = 0;
5078                 }
5079         }
5080
5081         return 0;
5082 }
5083
5084 /**
5085  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
5086  * @phba: pointer to lpfc hba data structure.
5087  *
5088  * This routine is invoked to unset the driver internal resources set up
5089  * specific for supporting the SLI-3 HBA device it attached to.
5090  **/
5091 static void
5092 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
5093 {
5094         /* Free device driver memory allocated */
5095         lpfc_mem_free_all(phba);
5096
5097         return;
5098 }
5099
5100 /**
5101  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
5102  * @phba: pointer to lpfc hba data structure.
5103  *
5104  * This routine is invoked to set up the driver internal resources specific to
5105  * support the SLI-4 HBA device it attached to.
5106  *
5107  * Return codes
5108  *      0 - successful
5109  *      other values - error
5110  **/
5111 static int
5112 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
5113 {
5114         struct lpfc_vector_map_info *cpup;
5115         struct lpfc_sli *psli;
5116         LPFC_MBOXQ_t *mboxq;
5117         int rc, i, hbq_count, max_buf_size;
5118         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
5119         struct lpfc_mqe *mqe;
5120         int longs;
5121         int fof_vectors = 0;
5122
5123         /* Get all the module params for configuring this host */
5124         lpfc_get_cfgparam(phba);
5125
5126         /* Before proceed, wait for POST done and device ready */
5127         rc = lpfc_sli4_post_status_check(phba);
5128         if (rc)
5129                 return -ENODEV;
5130
5131         /*
5132          * Initialize timers used by driver
5133          */
5134
5135         /* Heartbeat timer */
5136         init_timer(&phba->hb_tmofunc);
5137         phba->hb_tmofunc.function = lpfc_hb_timeout;
5138         phba->hb_tmofunc.data = (unsigned long)phba;
5139         init_timer(&phba->rrq_tmr);
5140         phba->rrq_tmr.function = lpfc_rrq_timeout;
5141         phba->rrq_tmr.data = (unsigned long)phba;
5142
5143         psli = &phba->sli;
5144         /* MBOX heartbeat timer */
5145         init_timer(&psli->mbox_tmo);
5146         psli->mbox_tmo.function = lpfc_mbox_timeout;
5147         psli->mbox_tmo.data = (unsigned long) phba;
5148         /* Fabric block timer */
5149         init_timer(&phba->fabric_block_timer);
5150         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
5151         phba->fabric_block_timer.data = (unsigned long) phba;
5152         /* EA polling mode timer */
5153         init_timer(&phba->eratt_poll);
5154         phba->eratt_poll.function = lpfc_poll_eratt;
5155         phba->eratt_poll.data = (unsigned long) phba;
5156         /* FCF rediscover timer */
5157         init_timer(&phba->fcf.redisc_wait);
5158         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
5159         phba->fcf.redisc_wait.data = (unsigned long)phba;
5160
5161         /*
5162          * Control structure for handling external multi-buffer mailbox
5163          * command pass-through.
5164          */
5165         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
5166                 sizeof(struct lpfc_mbox_ext_buf_ctx));
5167         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
5168
5169         phba->max_vpi = LPFC_MAX_VPI;
5170
5171         /* This will be set to correct value after the read_config mbox */
5172         phba->max_vports = 0;
5173
5174         /* Program the default value of vlan_id and fc_map */
5175         phba->valid_vlan = 0;
5176         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
5177         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
5178         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5179
5180         /*
5181          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
5182          * we will associate a new ring, for each FCP fastpath EQ/CQ/WQ tuple.
5183          */
5184         if (!phba->sli.ring)
5185                 phba->sli.ring = kzalloc(
5186                         (LPFC_SLI3_MAX_RING + phba->cfg_fcp_io_channel) *
5187                         sizeof(struct lpfc_sli_ring), GFP_KERNEL);
5188         if (!phba->sli.ring)
5189                 return -ENOMEM;
5190
5191         /*
5192          * It doesn't matter what family our adapter is in, we are
5193          * limited to 2 Pages, 512 SGEs, for our SGL.
5194          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
5195          */
5196         max_buf_size = (2 * SLI4_PAGE_SIZE);
5197         if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - 2)
5198                 phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - 2;
5199
5200         /*
5201          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
5202          * used to create the sg_dma_buf_pool must be dynamically calculated.
5203          */
5204
5205         if (phba->cfg_enable_bg) {
5206                 /*
5207                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
5208                  * the FCP rsp, and a SGE for each. Sice we have no control
5209                  * over how many protection data segments the SCSI Layer
5210                  * will hand us (ie: there could be one for every block
5211                  * in the IO), we just allocate enough SGEs to accomidate
5212                  * our max amount and we need to limit lpfc_sg_seg_cnt to
5213                  * minimize the risk of running out.
5214                  */
5215                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5216                         sizeof(struct fcp_rsp) + max_buf_size;
5217
5218                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
5219                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
5220
5221                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF)
5222                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SLI4_SEG_CNT_DIF;
5223         } else {
5224                 /*
5225                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
5226                  * the FCP rsp, a SGE for each, and a SGE for up to
5227                  * cfg_sg_seg_cnt data segments.
5228                  */
5229                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
5230                         sizeof(struct fcp_rsp) +
5231                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge));
5232
5233                 /* Total SGEs for scsi_sg_list */
5234                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
5235                 /*
5236                  * NOTE: if (phba->cfg_sg_seg_cnt + 2) <= 256 we only need
5237                  * to post 1 page for the SGL.
5238                  */
5239         }
5240
5241         /* Initialize the host templates with the updated values. */
5242         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5243         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
5244
5245         if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
5246                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
5247         else
5248                 phba->cfg_sg_dma_buf_size =
5249                         SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
5250
5251         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
5252                         "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n",
5253                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
5254                         phba->cfg_total_seg_cnt);
5255
5256         /* Initialize buffer queue management fields */
5257         hbq_count = lpfc_sli_hbq_count();
5258         for (i = 0; i < hbq_count; ++i)
5259                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5260         INIT_LIST_HEAD(&phba->rb_pend_list);
5261         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
5262         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
5263
5264         /*
5265          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
5266          */
5267         /* Initialize the Abort scsi buffer list used by driver */
5268         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
5269         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
5270         /* This abort list used by worker thread */
5271         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
5272
5273         /*
5274          * Initialize driver internal slow-path work queues
5275          */
5276
5277         /* Driver internel slow-path CQ Event pool */
5278         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
5279         /* Response IOCB work queue list */
5280         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
5281         /* Asynchronous event CQ Event work queue list */
5282         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
5283         /* Fast-path XRI aborted CQ Event work queue list */
5284         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
5285         /* Slow-path XRI aborted CQ Event work queue list */
5286         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
5287         /* Receive queue CQ Event work queue list */
5288         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
5289
5290         /* Initialize extent block lists. */
5291         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
5292         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
5293         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
5294         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
5295
5296         /* Initialize the driver internal SLI layer lists. */
5297         lpfc_sli_setup(phba);
5298         lpfc_sli_queue_setup(phba);
5299
5300         /* Allocate device driver memory */
5301         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
5302         if (rc)
5303                 return -ENOMEM;
5304
5305         /* IF Type 2 ports get initialized now. */
5306         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5307             LPFC_SLI_INTF_IF_TYPE_2) {
5308                 rc = lpfc_pci_function_reset(phba);
5309                 if (unlikely(rc))
5310                         return -ENODEV;
5311                 phba->temp_sensor_support = 1;
5312         }
5313
5314         /* Create the bootstrap mailbox command */
5315         rc = lpfc_create_bootstrap_mbox(phba);
5316         if (unlikely(rc))
5317                 goto out_free_mem;
5318
5319         /* Set up the host's endian order with the device. */
5320         rc = lpfc_setup_endian_order(phba);
5321         if (unlikely(rc))
5322                 goto out_free_bsmbx;
5323
5324         /* Set up the hba's configuration parameters. */
5325         rc = lpfc_sli4_read_config(phba);
5326         if (unlikely(rc))
5327                 goto out_free_bsmbx;
5328         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
5329         if (unlikely(rc))
5330                 goto out_free_bsmbx;
5331
5332         /* IF Type 0 ports get initialized now. */
5333         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
5334             LPFC_SLI_INTF_IF_TYPE_0) {
5335                 rc = lpfc_pci_function_reset(phba);
5336                 if (unlikely(rc))
5337                         goto out_free_bsmbx;
5338         }
5339
5340         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5341                                                        GFP_KERNEL);
5342         if (!mboxq) {
5343                 rc = -ENOMEM;
5344                 goto out_free_bsmbx;
5345         }
5346
5347         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
5348         lpfc_supported_pages(mboxq);
5349         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5350         if (!rc) {
5351                 mqe = &mboxq->u.mqe;
5352                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
5353                        LPFC_MAX_SUPPORTED_PAGES);
5354                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
5355                         switch (pn_page[i]) {
5356                         case LPFC_SLI4_PARAMETERS:
5357                                 phba->sli4_hba.pc_sli4_params.supported = 1;
5358                                 break;
5359                         default:
5360                                 break;
5361                         }
5362                 }
5363                 /* Read the port's SLI4 Parameters capabilities if supported. */
5364                 if (phba->sli4_hba.pc_sli4_params.supported)
5365                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
5366                 if (rc) {
5367                         mempool_free(mboxq, phba->mbox_mem_pool);
5368                         rc = -EIO;
5369                         goto out_free_bsmbx;
5370                 }
5371         }
5372         /*
5373          * Get sli4 parameters that override parameters from Port capabilities.
5374          * If this call fails, it isn't critical unless the SLI4 parameters come
5375          * back in conflict.
5376          */
5377         rc = lpfc_get_sli4_parameters(phba, mboxq);
5378         if (rc) {
5379                 if (phba->sli4_hba.extents_in_use &&
5380                     phba->sli4_hba.rpi_hdrs_in_use) {
5381                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5382                                 "2999 Unsupported SLI4 Parameters "
5383                                 "Extents and RPI headers enabled.\n");
5384                         goto out_free_bsmbx;
5385                 }
5386         }
5387         mempool_free(mboxq, phba->mbox_mem_pool);
5388
5389         /* Verify OAS is supported */
5390         lpfc_sli4_oas_verify(phba);
5391         if (phba->cfg_fof)
5392                 fof_vectors = 1;
5393
5394         /* Verify all the SLI4 queues */
5395         rc = lpfc_sli4_queue_verify(phba);
5396         if (rc)
5397                 goto out_free_bsmbx;
5398
5399         /* Create driver internal CQE event pool */
5400         rc = lpfc_sli4_cq_event_pool_create(phba);
5401         if (rc)
5402                 goto out_free_bsmbx;
5403
5404         /* Initialize sgl lists per host */
5405         lpfc_init_sgl_list(phba);
5406
5407         /* Allocate and initialize active sgl array */
5408         rc = lpfc_init_active_sgl_array(phba);
5409         if (rc) {
5410                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5411                                 "1430 Failed to initialize sgl list.\n");
5412                 goto out_destroy_cq_event_pool;
5413         }
5414         rc = lpfc_sli4_init_rpi_hdrs(phba);
5415         if (rc) {
5416                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5417                                 "1432 Failed to initialize rpi headers.\n");
5418                 goto out_free_active_sgl;
5419         }
5420
5421         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
5422         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
5423         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
5424                                          GFP_KERNEL);
5425         if (!phba->fcf.fcf_rr_bmask) {
5426                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5427                                 "2759 Failed allocate memory for FCF round "
5428                                 "robin failover bmask\n");
5429                 rc = -ENOMEM;
5430                 goto out_remove_rpi_hdrs;
5431         }
5432
5433         phba->sli4_hba.fcp_eq_hdl =
5434                         kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
5435                             (fof_vectors + phba->cfg_fcp_io_channel)),
5436                             GFP_KERNEL);
5437         if (!phba->sli4_hba.fcp_eq_hdl) {
5438                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5439                                 "2572 Failed allocate memory for "
5440                                 "fast-path per-EQ handle array\n");
5441                 rc = -ENOMEM;
5442                 goto out_free_fcf_rr_bmask;
5443         }
5444
5445         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
5446                                   (fof_vectors +
5447                                    phba->cfg_fcp_io_channel)), GFP_KERNEL);
5448         if (!phba->sli4_hba.msix_entries) {
5449                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5450                                 "2573 Failed allocate memory for msi-x "
5451                                 "interrupt vector entries\n");
5452                 rc = -ENOMEM;
5453                 goto out_free_fcp_eq_hdl;
5454         }
5455
5456         phba->sli4_hba.cpu_map = kzalloc((sizeof(struct lpfc_vector_map_info) *
5457                                          phba->sli4_hba.num_present_cpu),
5458                                          GFP_KERNEL);
5459         if (!phba->sli4_hba.cpu_map) {
5460                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5461                                 "3327 Failed allocate memory for msi-x "
5462                                 "interrupt vector mapping\n");
5463                 rc = -ENOMEM;
5464                 goto out_free_msix;
5465         }
5466         if (lpfc_used_cpu == NULL) {
5467                 lpfc_used_cpu = kzalloc((sizeof(uint16_t) * lpfc_present_cpu),
5468                                          GFP_KERNEL);
5469                 if (!lpfc_used_cpu) {
5470                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5471                                         "3335 Failed allocate memory for msi-x "
5472                                         "interrupt vector mapping\n");
5473                         kfree(phba->sli4_hba.cpu_map);
5474                         rc = -ENOMEM;
5475                         goto out_free_msix;
5476                 }
5477                 for (i = 0; i < lpfc_present_cpu; i++)
5478                         lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY;
5479         }
5480
5481         /* Initialize io channels for round robin */
5482         cpup = phba->sli4_hba.cpu_map;
5483         rc = 0;
5484         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
5485                 cpup->channel_id = rc;
5486                 rc++;
5487                 if (rc >= phba->cfg_fcp_io_channel)
5488                         rc = 0;
5489         }
5490
5491         /*
5492          * Enable sr-iov virtual functions if supported and configured
5493          * through the module parameter.
5494          */
5495         if (phba->cfg_sriov_nr_virtfn > 0) {
5496                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
5497                                                  phba->cfg_sriov_nr_virtfn);
5498                 if (rc) {
5499                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5500                                         "3020 Requested number of SR-IOV "
5501                                         "virtual functions (%d) is not "
5502                                         "supported\n",
5503                                         phba->cfg_sriov_nr_virtfn);
5504                         phba->cfg_sriov_nr_virtfn = 0;
5505                 }
5506         }
5507
5508         return 0;
5509
5510 out_free_msix:
5511         kfree(phba->sli4_hba.msix_entries);
5512 out_free_fcp_eq_hdl:
5513         kfree(phba->sli4_hba.fcp_eq_hdl);
5514 out_free_fcf_rr_bmask:
5515         kfree(phba->fcf.fcf_rr_bmask);
5516 out_remove_rpi_hdrs:
5517         lpfc_sli4_remove_rpi_hdrs(phba);
5518 out_free_active_sgl:
5519         lpfc_free_active_sgl(phba);
5520 out_destroy_cq_event_pool:
5521         lpfc_sli4_cq_event_pool_destroy(phba);
5522 out_free_bsmbx:
5523         lpfc_destroy_bootstrap_mbox(phba);
5524 out_free_mem:
5525         lpfc_mem_free(phba);
5526         return rc;
5527 }
5528
5529 /**
5530  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
5531  * @phba: pointer to lpfc hba data structure.
5532  *
5533  * This routine is invoked to unset the driver internal resources set up
5534  * specific for supporting the SLI-4 HBA device it attached to.
5535  **/
5536 static void
5537 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
5538 {
5539         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
5540
5541         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
5542         kfree(phba->sli4_hba.cpu_map);
5543         phba->sli4_hba.num_present_cpu = 0;
5544         phba->sli4_hba.num_online_cpu = 0;
5545         phba->sli4_hba.curr_disp_cpu = 0;
5546
5547         /* Free memory allocated for msi-x interrupt vector entries */
5548         kfree(phba->sli4_hba.msix_entries);
5549
5550         /* Free memory allocated for fast-path work queue handles */
5551         kfree(phba->sli4_hba.fcp_eq_hdl);
5552
5553         /* Free the allocated rpi headers. */
5554         lpfc_sli4_remove_rpi_hdrs(phba);
5555         lpfc_sli4_remove_rpis(phba);
5556
5557         /* Free eligible FCF index bmask */
5558         kfree(phba->fcf.fcf_rr_bmask);
5559
5560         /* Free the ELS sgl list */
5561         lpfc_free_active_sgl(phba);
5562         lpfc_free_els_sgl_list(phba);
5563
5564         /* Free the completion queue EQ event pool */
5565         lpfc_sli4_cq_event_release_all(phba);
5566         lpfc_sli4_cq_event_pool_destroy(phba);
5567
5568         /* Release resource identifiers. */
5569         lpfc_sli4_dealloc_resource_identifiers(phba);
5570
5571         /* Free the bsmbx region. */
5572         lpfc_destroy_bootstrap_mbox(phba);
5573
5574         /* Free the SLI Layer memory with SLI4 HBAs */
5575         lpfc_mem_free_all(phba);
5576
5577         /* Free the current connect table */
5578         list_for_each_entry_safe(conn_entry, next_conn_entry,
5579                 &phba->fcf_conn_rec_list, list) {
5580                 list_del_init(&conn_entry->list);
5581                 kfree(conn_entry);
5582         }
5583
5584         return;
5585 }
5586
5587 /**
5588  * lpfc_init_api_table_setup - Set up init api function jump table
5589  * @phba: The hba struct for which this call is being executed.
5590  * @dev_grp: The HBA PCI-Device group number.
5591  *
5592  * This routine sets up the device INIT interface API function jump table
5593  * in @phba struct.
5594  *
5595  * Returns: 0 - success, -ENODEV - failure.
5596  **/
5597 int
5598 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5599 {
5600         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5601         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5602         phba->lpfc_selective_reset = lpfc_selective_reset;
5603         switch (dev_grp) {
5604         case LPFC_PCI_DEV_LP:
5605                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5606                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5607                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5608                 break;
5609         case LPFC_PCI_DEV_OC:
5610                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5611                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5612                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5613                 break;
5614         default:
5615                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5616                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5617                                 dev_grp);
5618                 return -ENODEV;
5619                 break;
5620         }
5621         return 0;
5622 }
5623
5624 /**
5625  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5626  * @phba: pointer to lpfc hba data structure.
5627  *
5628  * This routine is invoked to set up the driver internal resources before the
5629  * device specific resource setup to support the HBA device it attached to.
5630  *
5631  * Return codes
5632  *      0 - successful
5633  *      other values - error
5634  **/
5635 static int
5636 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5637 {
5638         /*
5639          * Driver resources common to all SLI revisions
5640          */
5641         atomic_set(&phba->fast_event_count, 0);
5642         spin_lock_init(&phba->hbalock);
5643
5644         /* Initialize ndlp management spinlock */
5645         spin_lock_init(&phba->ndlp_lock);
5646
5647         INIT_LIST_HEAD(&phba->port_list);
5648         INIT_LIST_HEAD(&phba->work_list);
5649         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5650
5651         /* Initialize the wait queue head for the kernel thread */
5652         init_waitqueue_head(&phba->work_waitq);
5653
5654         /* Initialize the scsi buffer list used by driver for scsi IO */
5655         spin_lock_init(&phba->scsi_buf_list_get_lock);
5656         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
5657         spin_lock_init(&phba->scsi_buf_list_put_lock);
5658         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
5659
5660         /* Initialize the fabric iocb list */
5661         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5662
5663         /* Initialize list to save ELS buffers */
5664         INIT_LIST_HEAD(&phba->elsbuf);
5665
5666         /* Initialize FCF connection rec list */
5667         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5668
5669         /* Initialize OAS configuration list */
5670         spin_lock_init(&phba->devicelock);
5671         INIT_LIST_HEAD(&phba->luns);
5672
5673         return 0;
5674 }
5675
5676 /**
5677  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5678  * @phba: pointer to lpfc hba data structure.
5679  *
5680  * This routine is invoked to set up the driver internal resources after the
5681  * device specific resource setup to support the HBA device it attached to.
5682  *
5683  * Return codes
5684  *      0 - successful
5685  *      other values - error
5686  **/
5687 static int
5688 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5689 {
5690         int error;
5691
5692         /* Startup the kernel thread for this host adapter. */
5693         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5694                                           "lpfc_worker_%d", phba->brd_no);
5695         if (IS_ERR(phba->worker_thread)) {
5696                 error = PTR_ERR(phba->worker_thread);
5697                 return error;
5698         }
5699
5700         return 0;
5701 }
5702
5703 /**
5704  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5705  * @phba: pointer to lpfc hba data structure.
5706  *
5707  * This routine is invoked to unset the driver internal resources set up after
5708  * the device specific resource setup for supporting the HBA device it
5709  * attached to.
5710  **/
5711 static void
5712 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5713 {
5714         /* Stop kernel worker thread */
5715         kthread_stop(phba->worker_thread);
5716 }
5717
5718 /**
5719  * lpfc_free_iocb_list - Free iocb list.
5720  * @phba: pointer to lpfc hba data structure.
5721  *
5722  * This routine is invoked to free the driver's IOCB list and memory.
5723  **/
5724 static void
5725 lpfc_free_iocb_list(struct lpfc_hba *phba)
5726 {
5727         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5728
5729         spin_lock_irq(&phba->hbalock);
5730         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5731                                  &phba->lpfc_iocb_list, list) {
5732                 list_del(&iocbq_entry->list);
5733                 kfree(iocbq_entry);
5734                 phba->total_iocbq_bufs--;
5735         }
5736         spin_unlock_irq(&phba->hbalock);
5737
5738         return;
5739 }
5740
5741 /**
5742  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5743  * @phba: pointer to lpfc hba data structure.
5744  *
5745  * This routine is invoked to allocate and initizlize the driver's IOCB
5746  * list and set up the IOCB tag array accordingly.
5747  *
5748  * Return codes
5749  *      0 - successful
5750  *      other values - error
5751  **/
5752 static int
5753 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5754 {
5755         struct lpfc_iocbq *iocbq_entry = NULL;
5756         uint16_t iotag;
5757         int i;
5758
5759         /* Initialize and populate the iocb list per host.  */
5760         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5761         for (i = 0; i < iocb_count; i++) {
5762                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5763                 if (iocbq_entry == NULL) {
5764                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5765                                 "expected %d count. Unloading driver.\n",
5766                                 __func__, i, LPFC_IOCB_LIST_CNT);
5767                         goto out_free_iocbq;
5768                 }
5769
5770                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5771                 if (iotag == 0) {
5772                         kfree(iocbq_entry);
5773                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5774                                 "Unloading driver.\n", __func__);
5775                         goto out_free_iocbq;
5776                 }
5777                 iocbq_entry->sli4_lxritag = NO_XRI;
5778                 iocbq_entry->sli4_xritag = NO_XRI;
5779
5780                 spin_lock_irq(&phba->hbalock);
5781                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5782                 phba->total_iocbq_bufs++;
5783                 spin_unlock_irq(&phba->hbalock);
5784         }
5785
5786         return 0;
5787
5788 out_free_iocbq:
5789         lpfc_free_iocb_list(phba);
5790
5791         return -ENOMEM;
5792 }
5793
5794 /**
5795  * lpfc_free_sgl_list - Free a given sgl list.
5796  * @phba: pointer to lpfc hba data structure.
5797  * @sglq_list: pointer to the head of sgl list.
5798  *
5799  * This routine is invoked to free a give sgl list and memory.
5800  **/
5801 void
5802 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5803 {
5804         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5805
5806         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5807                 list_del(&sglq_entry->list);
5808                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5809                 kfree(sglq_entry);
5810         }
5811 }
5812
5813 /**
5814  * lpfc_free_els_sgl_list - Free els sgl list.
5815  * @phba: pointer to lpfc hba data structure.
5816  *
5817  * This routine is invoked to free the driver's els sgl list and memory.
5818  **/
5819 static void
5820 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5821 {
5822         LIST_HEAD(sglq_list);
5823         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
5824
5825         /* Retrieve all els sgls from driver list */
5826         spin_lock_irq(&phba->hbalock);
5827         spin_lock(&pring->ring_lock);
5828         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5829         spin_unlock(&pring->ring_lock);
5830         spin_unlock_irq(&phba->hbalock);
5831
5832         /* Now free the sgl list */
5833         lpfc_free_sgl_list(phba, &sglq_list);
5834 }
5835
5836 /**
5837  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5838  * @phba: pointer to lpfc hba data structure.
5839  *
5840  * This routine is invoked to allocate the driver's active sgl memory.
5841  * This array will hold the sglq_entry's for active IOs.
5842  **/
5843 static int
5844 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5845 {
5846         int size;
5847         size = sizeof(struct lpfc_sglq *);
5848         size *= phba->sli4_hba.max_cfg_param.max_xri;
5849
5850         phba->sli4_hba.lpfc_sglq_active_list =
5851                 kzalloc(size, GFP_KERNEL);
5852         if (!phba->sli4_hba.lpfc_sglq_active_list)
5853                 return -ENOMEM;
5854         return 0;
5855 }
5856
5857 /**
5858  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5859  * @phba: pointer to lpfc hba data structure.
5860  *
5861  * This routine is invoked to walk through the array of active sglq entries
5862  * and free all of the resources.
5863  * This is just a place holder for now.
5864  **/
5865 static void
5866 lpfc_free_active_sgl(struct lpfc_hba *phba)
5867 {
5868         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5869 }
5870
5871 /**
5872  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5873  * @phba: pointer to lpfc hba data structure.
5874  *
5875  * This routine is invoked to allocate and initizlize the driver's sgl
5876  * list and set up the sgl xritag tag array accordingly.
5877  *
5878  **/
5879 static void
5880 lpfc_init_sgl_list(struct lpfc_hba *phba)
5881 {
5882         /* Initialize and populate the sglq list per host/VF. */
5883         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5884         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5885
5886         /* els xri-sgl book keeping */
5887         phba->sli4_hba.els_xri_cnt = 0;
5888
5889         /* scsi xri-buffer book keeping */
5890         phba->sli4_hba.scsi_xri_cnt = 0;
5891 }
5892
5893 /**
5894  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5895  * @phba: pointer to lpfc hba data structure.
5896  *
5897  * This routine is invoked to post rpi header templates to the
5898  * port for those SLI4 ports that do not support extents.  This routine
5899  * posts a PAGE_SIZE memory region to the port to hold up to
5900  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5901  * and should be called only when interrupts are disabled.
5902  *
5903  * Return codes
5904  *      0 - successful
5905  *      -ERROR - otherwise.
5906  **/
5907 int
5908 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5909 {
5910         int rc = 0;
5911         struct lpfc_rpi_hdr *rpi_hdr;
5912
5913         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5914         if (!phba->sli4_hba.rpi_hdrs_in_use)
5915                 return rc;
5916         if (phba->sli4_hba.extents_in_use)
5917                 return -EIO;
5918
5919         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5920         if (!rpi_hdr) {
5921                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5922                                 "0391 Error during rpi post operation\n");
5923                 lpfc_sli4_remove_rpis(phba);
5924                 rc = -ENODEV;
5925         }
5926
5927         return rc;
5928 }
5929
5930 /**
5931  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5932  * @phba: pointer to lpfc hba data structure.
5933  *
5934  * This routine is invoked to allocate a single 4KB memory region to
5935  * support rpis and stores them in the phba.  This single region
5936  * provides support for up to 64 rpis.  The region is used globally
5937  * by the device.
5938  *
5939  * Returns:
5940  *   A valid rpi hdr on success.
5941  *   A NULL pointer on any failure.
5942  **/
5943 struct lpfc_rpi_hdr *
5944 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5945 {
5946         uint16_t rpi_limit, curr_rpi_range;
5947         struct lpfc_dmabuf *dmabuf;
5948         struct lpfc_rpi_hdr *rpi_hdr;
5949         uint32_t rpi_count;
5950
5951         /*
5952          * If the SLI4 port supports extents, posting the rpi header isn't
5953          * required.  Set the expected maximum count and let the actual value
5954          * get set when extents are fully allocated.
5955          */
5956         if (!phba->sli4_hba.rpi_hdrs_in_use)
5957                 return NULL;
5958         if (phba->sli4_hba.extents_in_use)
5959                 return NULL;
5960
5961         /* The limit on the logical index is just the max_rpi count. */
5962         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5963         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5964
5965         spin_lock_irq(&phba->hbalock);
5966         /*
5967          * Establish the starting RPI in this header block.  The starting
5968          * rpi is normalized to a zero base because the physical rpi is
5969          * port based.
5970          */
5971         curr_rpi_range = phba->sli4_hba.next_rpi;
5972         spin_unlock_irq(&phba->hbalock);
5973
5974         /*
5975          * The port has a limited number of rpis. The increment here
5976          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5977          * and to allow the full max_rpi range per port.
5978          */
5979         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5980                 rpi_count = rpi_limit - curr_rpi_range;
5981         else
5982                 rpi_count = LPFC_RPI_HDR_COUNT;
5983
5984         if (!rpi_count)
5985                 return NULL;
5986         /*
5987          * First allocate the protocol header region for the port.  The
5988          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5989          */
5990         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5991         if (!dmabuf)
5992                 return NULL;
5993
5994         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
5995                                            LPFC_HDR_TEMPLATE_SIZE,
5996                                            &dmabuf->phys, GFP_KERNEL);
5997         if (!dmabuf->virt) {
5998                 rpi_hdr = NULL;
5999                 goto err_free_dmabuf;
6000         }
6001
6002         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
6003                 rpi_hdr = NULL;
6004                 goto err_free_coherent;
6005         }
6006
6007         /* Save the rpi header data for cleanup later. */
6008         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
6009         if (!rpi_hdr)
6010                 goto err_free_coherent;
6011
6012         rpi_hdr->dmabuf = dmabuf;
6013         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
6014         rpi_hdr->page_count = 1;
6015         spin_lock_irq(&phba->hbalock);
6016
6017         /* The rpi_hdr stores the logical index only. */
6018         rpi_hdr->start_rpi = curr_rpi_range;
6019         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
6020
6021         /*
6022          * The next_rpi stores the next logical module-64 rpi value used
6023          * to post physical rpis in subsequent rpi postings.
6024          */
6025         phba->sli4_hba.next_rpi += rpi_count;
6026         spin_unlock_irq(&phba->hbalock);
6027         return rpi_hdr;
6028
6029  err_free_coherent:
6030         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
6031                           dmabuf->virt, dmabuf->phys);
6032  err_free_dmabuf:
6033         kfree(dmabuf);
6034         return NULL;
6035 }
6036
6037 /**
6038  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
6039  * @phba: pointer to lpfc hba data structure.
6040  *
6041  * This routine is invoked to remove all memory resources allocated
6042  * to support rpis for SLI4 ports not supporting extents. This routine
6043  * presumes the caller has released all rpis consumed by fabric or port
6044  * logins and is prepared to have the header pages removed.
6045  **/
6046 void
6047 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
6048 {
6049         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
6050
6051         if (!phba->sli4_hba.rpi_hdrs_in_use)
6052                 goto exit;
6053
6054         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
6055                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
6056                 list_del(&rpi_hdr->list);
6057                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
6058                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
6059                 kfree(rpi_hdr->dmabuf);
6060                 kfree(rpi_hdr);
6061         }
6062  exit:
6063         /* There are no rpis available to the port now. */
6064         phba->sli4_hba.next_rpi = 0;
6065 }
6066
6067 /**
6068  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
6069  * @pdev: pointer to pci device data structure.
6070  *
6071  * This routine is invoked to allocate the driver hba data structure for an
6072  * HBA device. If the allocation is successful, the phba reference to the
6073  * PCI device data structure is set.
6074  *
6075  * Return codes
6076  *      pointer to @phba - successful
6077  *      NULL - error
6078  **/
6079 static struct lpfc_hba *
6080 lpfc_hba_alloc(struct pci_dev *pdev)
6081 {
6082         struct lpfc_hba *phba;
6083
6084         /* Allocate memory for HBA structure */
6085         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
6086         if (!phba) {
6087                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
6088                 return NULL;
6089         }
6090
6091         /* Set reference to PCI device in HBA structure */
6092         phba->pcidev = pdev;
6093
6094         /* Assign an unused board number */
6095         phba->brd_no = lpfc_get_instance();
6096         if (phba->brd_no < 0) {
6097                 kfree(phba);
6098                 return NULL;
6099         }
6100
6101         spin_lock_init(&phba->ct_ev_lock);
6102         INIT_LIST_HEAD(&phba->ct_ev_waiters);
6103
6104         return phba;
6105 }
6106
6107 /**
6108  * lpfc_hba_free - Free driver hba data structure with a device.
6109  * @phba: pointer to lpfc hba data structure.
6110  *
6111  * This routine is invoked to free the driver hba data structure with an
6112  * HBA device.
6113  **/
6114 static void
6115 lpfc_hba_free(struct lpfc_hba *phba)
6116 {
6117         /* Release the driver assigned board number */
6118         idr_remove(&lpfc_hba_index, phba->brd_no);
6119
6120         /* Free memory allocated with sli rings */
6121         kfree(phba->sli.ring);
6122         phba->sli.ring = NULL;
6123
6124         kfree(phba);
6125         return;
6126 }
6127
6128 /**
6129  * lpfc_create_shost - Create hba physical port with associated scsi host.
6130  * @phba: pointer to lpfc hba data structure.
6131  *
6132  * This routine is invoked to create HBA physical port and associate a SCSI
6133  * host with it.
6134  *
6135  * Return codes
6136  *      0 - successful
6137  *      other values - error
6138  **/
6139 static int
6140 lpfc_create_shost(struct lpfc_hba *phba)
6141 {
6142         struct lpfc_vport *vport;
6143         struct Scsi_Host  *shost;
6144
6145         /* Initialize HBA FC structure */
6146         phba->fc_edtov = FF_DEF_EDTOV;
6147         phba->fc_ratov = FF_DEF_RATOV;
6148         phba->fc_altov = FF_DEF_ALTOV;
6149         phba->fc_arbtov = FF_DEF_ARBTOV;
6150
6151         atomic_set(&phba->sdev_cnt, 0);
6152         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
6153         if (!vport)
6154                 return -ENODEV;
6155
6156         shost = lpfc_shost_from_vport(vport);
6157         phba->pport = vport;
6158         lpfc_debugfs_initialize(vport);
6159         /* Put reference to SCSI host to driver's device private data */
6160         pci_set_drvdata(phba->pcidev, shost);
6161
6162         return 0;
6163 }
6164
6165 /**
6166  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
6167  * @phba: pointer to lpfc hba data structure.
6168  *
6169  * This routine is invoked to destroy HBA physical port and the associated
6170  * SCSI host.
6171  **/
6172 static void
6173 lpfc_destroy_shost(struct lpfc_hba *phba)
6174 {
6175         struct lpfc_vport *vport = phba->pport;
6176
6177         /* Destroy physical port that associated with the SCSI host */
6178         destroy_port(vport);
6179
6180         return;
6181 }
6182
6183 /**
6184  * lpfc_setup_bg - Setup Block guard structures and debug areas.
6185  * @phba: pointer to lpfc hba data structure.
6186  * @shost: the shost to be used to detect Block guard settings.
6187  *
6188  * This routine sets up the local Block guard protocol settings for @shost.
6189  * This routine also allocates memory for debugging bg buffers.
6190  **/
6191 static void
6192 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
6193 {
6194         uint32_t old_mask;
6195         uint32_t old_guard;
6196
6197         int pagecnt = 10;
6198         if (lpfc_prot_mask && lpfc_prot_guard) {
6199                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6200                                 "1478 Registering BlockGuard with the "
6201                                 "SCSI layer\n");
6202
6203                 old_mask = lpfc_prot_mask;
6204                 old_guard = lpfc_prot_guard;
6205
6206                 /* Only allow supported values */
6207                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
6208                         SHOST_DIX_TYPE0_PROTECTION |
6209                         SHOST_DIX_TYPE1_PROTECTION);
6210                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
6211
6212                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
6213                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
6214                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
6215
6216                 if (lpfc_prot_mask && lpfc_prot_guard) {
6217                         if ((old_mask != lpfc_prot_mask) ||
6218                                 (old_guard != lpfc_prot_guard))
6219                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6220                                         "1475 Registering BlockGuard with the "
6221                                         "SCSI layer: mask %d  guard %d\n",
6222                                         lpfc_prot_mask, lpfc_prot_guard);
6223
6224                         scsi_host_set_prot(shost, lpfc_prot_mask);
6225                         scsi_host_set_guard(shost, lpfc_prot_guard);
6226                 } else
6227                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6228                                 "1479 Not Registering BlockGuard with the SCSI "
6229                                 "layer, Bad protection parameters: %d %d\n",
6230                                 old_mask, old_guard);
6231         }
6232
6233         if (!_dump_buf_data) {
6234                 while (pagecnt) {
6235                         spin_lock_init(&_dump_buf_lock);
6236                         _dump_buf_data =
6237                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6238                         if (_dump_buf_data) {
6239                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6240                                         "9043 BLKGRD: allocated %d pages for "
6241                                        "_dump_buf_data at 0x%p\n",
6242                                        (1 << pagecnt), _dump_buf_data);
6243                                 _dump_buf_data_order = pagecnt;
6244                                 memset(_dump_buf_data, 0,
6245                                        ((1 << PAGE_SHIFT) << pagecnt));
6246                                 break;
6247                         } else
6248                                 --pagecnt;
6249                 }
6250                 if (!_dump_buf_data_order)
6251                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6252                                 "9044 BLKGRD: ERROR unable to allocate "
6253                                "memory for hexdump\n");
6254         } else
6255                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6256                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
6257                        "\n", _dump_buf_data);
6258         if (!_dump_buf_dif) {
6259                 while (pagecnt) {
6260                         _dump_buf_dif =
6261                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
6262                         if (_dump_buf_dif) {
6263                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6264                                         "9046 BLKGRD: allocated %d pages for "
6265                                        "_dump_buf_dif at 0x%p\n",
6266                                        (1 << pagecnt), _dump_buf_dif);
6267                                 _dump_buf_dif_order = pagecnt;
6268                                 memset(_dump_buf_dif, 0,
6269                                        ((1 << PAGE_SHIFT) << pagecnt));
6270                                 break;
6271                         } else
6272                                 --pagecnt;
6273                 }
6274                 if (!_dump_buf_dif_order)
6275                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6276                         "9047 BLKGRD: ERROR unable to allocate "
6277                                "memory for hexdump\n");
6278         } else
6279                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
6280                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
6281                        _dump_buf_dif);
6282 }
6283
6284 /**
6285  * lpfc_post_init_setup - Perform necessary device post initialization setup.
6286  * @phba: pointer to lpfc hba data structure.
6287  *
6288  * This routine is invoked to perform all the necessary post initialization
6289  * setup for the device.
6290  **/
6291 static void
6292 lpfc_post_init_setup(struct lpfc_hba *phba)
6293 {
6294         struct Scsi_Host  *shost;
6295         struct lpfc_adapter_event_header adapter_event;
6296
6297         /* Get the default values for Model Name and Description */
6298         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
6299
6300         /*
6301          * hba setup may have changed the hba_queue_depth so we need to
6302          * adjust the value of can_queue.
6303          */
6304         shost = pci_get_drvdata(phba->pcidev);
6305         shost->can_queue = phba->cfg_hba_queue_depth - 10;
6306         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
6307                 lpfc_setup_bg(phba, shost);
6308
6309         lpfc_host_attrib_init(shost);
6310
6311         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
6312                 spin_lock_irq(shost->host_lock);
6313                 lpfc_poll_start_timer(phba);
6314                 spin_unlock_irq(shost->host_lock);
6315         }
6316
6317         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6318                         "0428 Perform SCSI scan\n");
6319         /* Send board arrival event to upper layer */
6320         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
6321         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
6322         fc_host_post_vendor_event(shost, fc_get_event_number(),
6323                                   sizeof(adapter_event),
6324                                   (char *) &adapter_event,
6325                                   LPFC_NL_VENDOR_ID);
6326         return;
6327 }
6328
6329 /**
6330  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
6331  * @phba: pointer to lpfc hba data structure.
6332  *
6333  * This routine is invoked to set up the PCI device memory space for device
6334  * with SLI-3 interface spec.
6335  *
6336  * Return codes
6337  *      0 - successful
6338  *      other values - error
6339  **/
6340 static int
6341 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
6342 {
6343         struct pci_dev *pdev;
6344         unsigned long bar0map_len, bar2map_len;
6345         int i, hbq_count;
6346         void *ptr;
6347         int error = -ENODEV;
6348
6349         /* Obtain PCI device reference */
6350         if (!phba->pcidev)
6351                 return error;
6352         else
6353                 pdev = phba->pcidev;
6354
6355         /* Set the device DMA mask size */
6356         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6357          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6358                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6359                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6360                         return error;
6361                 }
6362         }
6363
6364         /* Get the bus address of Bar0 and Bar2 and the number of bytes
6365          * required by each mapping.
6366          */
6367         phba->pci_bar0_map = pci_resource_start(pdev, 0);
6368         bar0map_len = pci_resource_len(pdev, 0);
6369
6370         phba->pci_bar2_map = pci_resource_start(pdev, 2);
6371         bar2map_len = pci_resource_len(pdev, 2);
6372
6373         /* Map HBA SLIM to a kernel virtual address. */
6374         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
6375         if (!phba->slim_memmap_p) {
6376                 dev_printk(KERN_ERR, &pdev->dev,
6377                            "ioremap failed for SLIM memory.\n");
6378                 goto out;
6379         }
6380
6381         /* Map HBA Control Registers to a kernel virtual address. */
6382         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
6383         if (!phba->ctrl_regs_memmap_p) {
6384                 dev_printk(KERN_ERR, &pdev->dev,
6385                            "ioremap failed for HBA control registers.\n");
6386                 goto out_iounmap_slim;
6387         }
6388
6389         /* Allocate memory for SLI-2 structures */
6390         phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6391                                                 &phba->slim2p.phys, GFP_KERNEL);
6392         if (!phba->slim2p.virt)
6393                 goto out_iounmap;
6394
6395         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
6396         phba->mbox_ext = (phba->slim2p.virt +
6397                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
6398         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
6399         phba->IOCBs = (phba->slim2p.virt +
6400                        offsetof(struct lpfc_sli2_slim, IOCBs));
6401
6402         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
6403                                                  lpfc_sli_hbq_size(),
6404                                                  &phba->hbqslimp.phys,
6405                                                  GFP_KERNEL);
6406         if (!phba->hbqslimp.virt)
6407                 goto out_free_slim;
6408
6409         hbq_count = lpfc_sli_hbq_count();
6410         ptr = phba->hbqslimp.virt;
6411         for (i = 0; i < hbq_count; ++i) {
6412                 phba->hbqs[i].hbq_virt = ptr;
6413                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
6414                 ptr += (lpfc_hbq_defs[i]->entry_count *
6415                         sizeof(struct lpfc_hbq_entry));
6416         }
6417         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
6418         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
6419
6420         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
6421
6422         INIT_LIST_HEAD(&phba->rb_pend_list);
6423
6424         phba->MBslimaddr = phba->slim_memmap_p;
6425         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
6426         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
6427         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
6428         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
6429
6430         return 0;
6431
6432 out_free_slim:
6433         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6434                           phba->slim2p.virt, phba->slim2p.phys);
6435 out_iounmap:
6436         iounmap(phba->ctrl_regs_memmap_p);
6437 out_iounmap_slim:
6438         iounmap(phba->slim_memmap_p);
6439 out:
6440         return error;
6441 }
6442
6443 /**
6444  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
6445  * @phba: pointer to lpfc hba data structure.
6446  *
6447  * This routine is invoked to unset the PCI device memory space for device
6448  * with SLI-3 interface spec.
6449  **/
6450 static void
6451 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
6452 {
6453         struct pci_dev *pdev;
6454
6455         /* Obtain PCI device reference */
6456         if (!phba->pcidev)
6457                 return;
6458         else
6459                 pdev = phba->pcidev;
6460
6461         /* Free coherent DMA memory allocated */
6462         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
6463                           phba->hbqslimp.virt, phba->hbqslimp.phys);
6464         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
6465                           phba->slim2p.virt, phba->slim2p.phys);
6466
6467         /* I/O memory unmap */
6468         iounmap(phba->ctrl_regs_memmap_p);
6469         iounmap(phba->slim_memmap_p);
6470
6471         return;
6472 }
6473
6474 /**
6475  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
6476  * @phba: pointer to lpfc hba data structure.
6477  *
6478  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
6479  * done and check status.
6480  *
6481  * Return 0 if successful, otherwise -ENODEV.
6482  **/
6483 int
6484 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
6485 {
6486         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
6487         struct lpfc_register reg_data;
6488         int i, port_error = 0;
6489         uint32_t if_type;
6490
6491         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
6492         memset(&reg_data, 0, sizeof(reg_data));
6493         if (!phba->sli4_hba.PSMPHRregaddr)
6494                 return -ENODEV;
6495
6496         /* Wait up to 30 seconds for the SLI Port POST done and ready */
6497         for (i = 0; i < 3000; i++) {
6498                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
6499                         &portsmphr_reg.word0) ||
6500                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
6501                         /* Port has a fatal POST error, break out */
6502                         port_error = -ENODEV;
6503                         break;
6504                 }
6505                 if (LPFC_POST_STAGE_PORT_READY ==
6506                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
6507                         break;
6508                 msleep(10);
6509         }
6510
6511         /*
6512          * If there was a port error during POST, then don't proceed with
6513          * other register reads as the data may not be valid.  Just exit.
6514          */
6515         if (port_error) {
6516                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6517                         "1408 Port Failed POST - portsmphr=0x%x, "
6518                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
6519                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
6520                         portsmphr_reg.word0,
6521                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
6522                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
6523                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
6524                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
6525                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
6526                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
6527                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
6528                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
6529         } else {
6530                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6531                                 "2534 Device Info: SLIFamily=0x%x, "
6532                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
6533                                 "SLIHint_2=0x%x, FT=0x%x\n",
6534                                 bf_get(lpfc_sli_intf_sli_family,
6535                                        &phba->sli4_hba.sli_intf),
6536                                 bf_get(lpfc_sli_intf_slirev,
6537                                        &phba->sli4_hba.sli_intf),
6538                                 bf_get(lpfc_sli_intf_if_type,
6539                                        &phba->sli4_hba.sli_intf),
6540                                 bf_get(lpfc_sli_intf_sli_hint1,
6541                                        &phba->sli4_hba.sli_intf),
6542                                 bf_get(lpfc_sli_intf_sli_hint2,
6543                                        &phba->sli4_hba.sli_intf),
6544                                 bf_get(lpfc_sli_intf_func_type,
6545                                        &phba->sli4_hba.sli_intf));
6546                 /*
6547                  * Check for other Port errors during the initialization
6548                  * process.  Fail the load if the port did not come up
6549                  * correctly.
6550                  */
6551                 if_type = bf_get(lpfc_sli_intf_if_type,
6552                                  &phba->sli4_hba.sli_intf);
6553                 switch (if_type) {
6554                 case LPFC_SLI_INTF_IF_TYPE_0:
6555                         phba->sli4_hba.ue_mask_lo =
6556                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
6557                         phba->sli4_hba.ue_mask_hi =
6558                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
6559                         uerrlo_reg.word0 =
6560                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
6561                         uerrhi_reg.word0 =
6562                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
6563                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
6564                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
6565                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6566                                                 "1422 Unrecoverable Error "
6567                                                 "Detected during POST "
6568                                                 "uerr_lo_reg=0x%x, "
6569                                                 "uerr_hi_reg=0x%x, "
6570                                                 "ue_mask_lo_reg=0x%x, "
6571                                                 "ue_mask_hi_reg=0x%x\n",
6572                                                 uerrlo_reg.word0,
6573                                                 uerrhi_reg.word0,
6574                                                 phba->sli4_hba.ue_mask_lo,
6575                                                 phba->sli4_hba.ue_mask_hi);
6576                                 port_error = -ENODEV;
6577                         }
6578                         break;
6579                 case LPFC_SLI_INTF_IF_TYPE_2:
6580                         /* Final checks.  The port status should be clean. */
6581                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6582                                 &reg_data.word0) ||
6583                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6584                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6585                                 phba->work_status[0] =
6586                                         readl(phba->sli4_hba.u.if_type2.
6587                                               ERR1regaddr);
6588                                 phba->work_status[1] =
6589                                         readl(phba->sli4_hba.u.if_type2.
6590                                               ERR2regaddr);
6591                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6592                                         "2888 Unrecoverable port error "
6593                                         "following POST: port status reg "
6594                                         "0x%x, port_smphr reg 0x%x, "
6595                                         "error 1=0x%x, error 2=0x%x\n",
6596                                         reg_data.word0,
6597                                         portsmphr_reg.word0,
6598                                         phba->work_status[0],
6599                                         phba->work_status[1]);
6600                                 port_error = -ENODEV;
6601                         }
6602                         break;
6603                 case LPFC_SLI_INTF_IF_TYPE_1:
6604                 default:
6605                         break;
6606                 }
6607         }
6608         return port_error;
6609 }
6610
6611 /**
6612  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6613  * @phba: pointer to lpfc hba data structure.
6614  * @if_type:  The SLI4 interface type getting configured.
6615  *
6616  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6617  * memory map.
6618  **/
6619 static void
6620 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6621 {
6622         switch (if_type) {
6623         case LPFC_SLI_INTF_IF_TYPE_0:
6624                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6625                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6626                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6627                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6628                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6629                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6630                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6631                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6632                 phba->sli4_hba.SLIINTFregaddr =
6633                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6634                 break;
6635         case LPFC_SLI_INTF_IF_TYPE_2:
6636                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6637                         phba->sli4_hba.conf_regs_memmap_p +
6638                                                 LPFC_CTL_PORT_ER1_OFFSET;
6639                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6640                         phba->sli4_hba.conf_regs_memmap_p +
6641                                                 LPFC_CTL_PORT_ER2_OFFSET;
6642                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6643                         phba->sli4_hba.conf_regs_memmap_p +
6644                                                 LPFC_CTL_PORT_CTL_OFFSET;
6645                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6646                         phba->sli4_hba.conf_regs_memmap_p +
6647                                                 LPFC_CTL_PORT_STA_OFFSET;
6648                 phba->sli4_hba.SLIINTFregaddr =
6649                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6650                 phba->sli4_hba.PSMPHRregaddr =
6651                         phba->sli4_hba.conf_regs_memmap_p +
6652                                                 LPFC_CTL_PORT_SEM_OFFSET;
6653                 phba->sli4_hba.RQDBregaddr =
6654                         phba->sli4_hba.conf_regs_memmap_p +
6655                                                 LPFC_ULP0_RQ_DOORBELL;
6656                 phba->sli4_hba.WQDBregaddr =
6657                         phba->sli4_hba.conf_regs_memmap_p +
6658                                                 LPFC_ULP0_WQ_DOORBELL;
6659                 phba->sli4_hba.EQCQDBregaddr =
6660                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6661                 phba->sli4_hba.MQDBregaddr =
6662                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6663                 phba->sli4_hba.BMBXregaddr =
6664                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6665                 break;
6666         case LPFC_SLI_INTF_IF_TYPE_1:
6667         default:
6668                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6669                            "FATAL - unsupported SLI4 interface type - %d\n",
6670                            if_type);
6671                 break;
6672         }
6673 }
6674
6675 /**
6676  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6677  * @phba: pointer to lpfc hba data structure.
6678  *
6679  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6680  * memory map.
6681  **/
6682 static void
6683 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6684 {
6685         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6686                 LPFC_SLIPORT_IF0_SMPHR;
6687         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6688                 LPFC_HST_ISR0;
6689         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6690                 LPFC_HST_IMR0;
6691         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6692                 LPFC_HST_ISCR0;
6693 }
6694
6695 /**
6696  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6697  * @phba: pointer to lpfc hba data structure.
6698  * @vf: virtual function number
6699  *
6700  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6701  * based on the given viftual function number, @vf.
6702  *
6703  * Return 0 if successful, otherwise -ENODEV.
6704  **/
6705 static int
6706 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6707 {
6708         if (vf > LPFC_VIR_FUNC_MAX)
6709                 return -ENODEV;
6710
6711         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6712                                 vf * LPFC_VFR_PAGE_SIZE +
6713                                         LPFC_ULP0_RQ_DOORBELL);
6714         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6715                                 vf * LPFC_VFR_PAGE_SIZE +
6716                                         LPFC_ULP0_WQ_DOORBELL);
6717         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6718                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6719         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6720                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6721         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6722                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6723         return 0;
6724 }
6725
6726 /**
6727  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6728  * @phba: pointer to lpfc hba data structure.
6729  *
6730  * This routine is invoked to create the bootstrap mailbox
6731  * region consistent with the SLI-4 interface spec.  This
6732  * routine allocates all memory necessary to communicate
6733  * mailbox commands to the port and sets up all alignment
6734  * needs.  No locks are expected to be held when calling
6735  * this routine.
6736  *
6737  * Return codes
6738  *      0 - successful
6739  *      -ENOMEM - could not allocated memory.
6740  **/
6741 static int
6742 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6743 {
6744         uint32_t bmbx_size;
6745         struct lpfc_dmabuf *dmabuf;
6746         struct dma_address *dma_address;
6747         uint32_t pa_addr;
6748         uint64_t phys_addr;
6749
6750         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6751         if (!dmabuf)
6752                 return -ENOMEM;
6753
6754         /*
6755          * The bootstrap mailbox region is comprised of 2 parts
6756          * plus an alignment restriction of 16 bytes.
6757          */
6758         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6759         dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size,
6760                                            &dmabuf->phys, GFP_KERNEL);
6761         if (!dmabuf->virt) {
6762                 kfree(dmabuf);
6763                 return -ENOMEM;
6764         }
6765
6766         /*
6767          * Initialize the bootstrap mailbox pointers now so that the register
6768          * operations are simple later.  The mailbox dma address is required
6769          * to be 16-byte aligned.  Also align the virtual memory as each
6770          * maibox is copied into the bmbx mailbox region before issuing the
6771          * command to the port.
6772          */
6773         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6774         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6775
6776         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6777                                               LPFC_ALIGN_16_BYTE);
6778         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6779                                               LPFC_ALIGN_16_BYTE);
6780
6781         /*
6782          * Set the high and low physical addresses now.  The SLI4 alignment
6783          * requirement is 16 bytes and the mailbox is posted to the port
6784          * as two 30-bit addresses.  The other data is a bit marking whether
6785          * the 30-bit address is the high or low address.
6786          * Upcast bmbx aphys to 64bits so shift instruction compiles
6787          * clean on 32 bit machines.
6788          */
6789         dma_address = &phba->sli4_hba.bmbx.dma_address;
6790         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6791         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6792         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6793                                            LPFC_BMBX_BIT1_ADDR_HI);
6794
6795         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6796         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6797                                            LPFC_BMBX_BIT1_ADDR_LO);
6798         return 0;
6799 }
6800
6801 /**
6802  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6803  * @phba: pointer to lpfc hba data structure.
6804  *
6805  * This routine is invoked to teardown the bootstrap mailbox
6806  * region and release all host resources. This routine requires
6807  * the caller to ensure all mailbox commands recovered, no
6808  * additional mailbox comands are sent, and interrupts are disabled
6809  * before calling this routine.
6810  *
6811  **/
6812 static void
6813 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6814 {
6815         dma_free_coherent(&phba->pcidev->dev,
6816                           phba->sli4_hba.bmbx.bmbx_size,
6817                           phba->sli4_hba.bmbx.dmabuf->virt,
6818                           phba->sli4_hba.bmbx.dmabuf->phys);
6819
6820         kfree(phba->sli4_hba.bmbx.dmabuf);
6821         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6822 }
6823
6824 /**
6825  * lpfc_sli4_read_config - Get the config parameters.
6826  * @phba: pointer to lpfc hba data structure.
6827  *
6828  * This routine is invoked to read the configuration parameters from the HBA.
6829  * The configuration parameters are used to set the base and maximum values
6830  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6831  * allocation for the port.
6832  *
6833  * Return codes
6834  *      0 - successful
6835  *      -ENOMEM - No available memory
6836  *      -EIO - The mailbox failed to complete successfully.
6837  **/
6838 int
6839 lpfc_sli4_read_config(struct lpfc_hba *phba)
6840 {
6841         LPFC_MBOXQ_t *pmb;
6842         struct lpfc_mbx_read_config *rd_config;
6843         union  lpfc_sli4_cfg_shdr *shdr;
6844         uint32_t shdr_status, shdr_add_status;
6845         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6846         struct lpfc_rsrc_desc_fcfcoe *desc;
6847         char *pdesc_0;
6848         int length, i, rc = 0, rc2;
6849
6850         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6851         if (!pmb) {
6852                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6853                                 "2011 Unable to allocate memory for issuing "
6854                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6855                 return -ENOMEM;
6856         }
6857
6858         lpfc_read_config(phba, pmb);
6859
6860         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6861         if (rc != MBX_SUCCESS) {
6862                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6863                         "2012 Mailbox failed , mbxCmd x%x "
6864                         "READ_CONFIG, mbxStatus x%x\n",
6865                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6866                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6867                 rc = -EIO;
6868         } else {
6869                 rd_config = &pmb->u.mqe.un.rd_config;
6870                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6871                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6872                         phba->sli4_hba.lnk_info.lnk_tp =
6873                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6874                         phba->sli4_hba.lnk_info.lnk_no =
6875                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6876                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6877                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6878                                         phba->sli4_hba.lnk_info.lnk_tp,
6879                                         phba->sli4_hba.lnk_info.lnk_no);
6880                 } else
6881                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6882                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6883                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6884                 phba->sli4_hba.extents_in_use =
6885                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6886                 phba->sli4_hba.max_cfg_param.max_xri =
6887                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6888                 phba->sli4_hba.max_cfg_param.xri_base =
6889                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6890                 phba->sli4_hba.max_cfg_param.max_vpi =
6891                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6892                 phba->sli4_hba.max_cfg_param.vpi_base =
6893                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6894                 phba->sli4_hba.max_cfg_param.max_rpi =
6895                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6896                 phba->sli4_hba.max_cfg_param.rpi_base =
6897                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6898                 phba->sli4_hba.max_cfg_param.max_vfi =
6899                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6900                 phba->sli4_hba.max_cfg_param.vfi_base =
6901                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6902                 phba->sli4_hba.max_cfg_param.max_fcfi =
6903                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6904                 phba->sli4_hba.max_cfg_param.max_eq =
6905                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6906                 phba->sli4_hba.max_cfg_param.max_rq =
6907                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6908                 phba->sli4_hba.max_cfg_param.max_wq =
6909                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6910                 phba->sli4_hba.max_cfg_param.max_cq =
6911                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6912                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6913                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6914                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6915                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6916                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6917                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6918                 phba->max_vports = phba->max_vpi;
6919                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6920                                 "2003 cfg params Extents? %d "
6921                                 "XRI(B:%d M:%d), "
6922                                 "VPI(B:%d M:%d) "
6923                                 "VFI(B:%d M:%d) "
6924                                 "RPI(B:%d M:%d) "
6925                                 "FCFI(Count:%d)\n",
6926                                 phba->sli4_hba.extents_in_use,
6927                                 phba->sli4_hba.max_cfg_param.xri_base,
6928                                 phba->sli4_hba.max_cfg_param.max_xri,
6929                                 phba->sli4_hba.max_cfg_param.vpi_base,
6930                                 phba->sli4_hba.max_cfg_param.max_vpi,
6931                                 phba->sli4_hba.max_cfg_param.vfi_base,
6932                                 phba->sli4_hba.max_cfg_param.max_vfi,
6933                                 phba->sli4_hba.max_cfg_param.rpi_base,
6934                                 phba->sli4_hba.max_cfg_param.max_rpi,
6935                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6936         }
6937
6938         if (rc)
6939                 goto read_cfg_out;
6940
6941         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6942         length = phba->sli4_hba.max_cfg_param.max_xri -
6943                         lpfc_sli4_get_els_iocb_cnt(phba);
6944         if (phba->cfg_hba_queue_depth > length) {
6945                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6946                                 "3361 HBA queue depth changed from %d to %d\n",
6947                                 phba->cfg_hba_queue_depth, length);
6948                 phba->cfg_hba_queue_depth = length;
6949         }
6950
6951         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6952             LPFC_SLI_INTF_IF_TYPE_2)
6953                 goto read_cfg_out;
6954
6955         /* get the pf# and vf# for SLI4 if_type 2 port */
6956         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6957                   sizeof(struct lpfc_sli4_cfg_mhdr));
6958         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6959                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6960                          length, LPFC_SLI4_MBX_EMBED);
6961
6962         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6963         shdr = (union lpfc_sli4_cfg_shdr *)
6964                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6965         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6966         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6967         if (rc2 || shdr_status || shdr_add_status) {
6968                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6969                                 "3026 Mailbox failed , mbxCmd x%x "
6970                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6971                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6972                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6973                 goto read_cfg_out;
6974         }
6975
6976         /* search for fc_fcoe resrouce descriptor */
6977         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6978
6979         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
6980         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
6981         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
6982         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
6983                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
6984         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
6985                 goto read_cfg_out;
6986
6987         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6988                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
6989                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6990                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
6991                         phba->sli4_hba.iov.pf_number =
6992                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6993                         phba->sli4_hba.iov.vf_number =
6994                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6995                         break;
6996                 }
6997         }
6998
6999         if (i < LPFC_RSRC_DESC_MAX_NUM)
7000                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7001                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
7002                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
7003                                 phba->sli4_hba.iov.vf_number);
7004         else
7005                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7006                                 "3028 GET_FUNCTION_CONFIG: failed to find "
7007                                 "Resrouce Descriptor:x%x\n",
7008                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
7009
7010 read_cfg_out:
7011         mempool_free(pmb, phba->mbox_mem_pool);
7012         return rc;
7013 }
7014
7015 /**
7016  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
7017  * @phba: pointer to lpfc hba data structure.
7018  *
7019  * This routine is invoked to setup the port-side endian order when
7020  * the port if_type is 0.  This routine has no function for other
7021  * if_types.
7022  *
7023  * Return codes
7024  *      0 - successful
7025  *      -ENOMEM - No available memory
7026  *      -EIO - The mailbox failed to complete successfully.
7027  **/
7028 static int
7029 lpfc_setup_endian_order(struct lpfc_hba *phba)
7030 {
7031         LPFC_MBOXQ_t *mboxq;
7032         uint32_t if_type, rc = 0;
7033         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
7034                                       HOST_ENDIAN_HIGH_WORD1};
7035
7036         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7037         switch (if_type) {
7038         case LPFC_SLI_INTF_IF_TYPE_0:
7039                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7040                                                        GFP_KERNEL);
7041                 if (!mboxq) {
7042                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7043                                         "0492 Unable to allocate memory for "
7044                                         "issuing SLI_CONFIG_SPECIAL mailbox "
7045                                         "command\n");
7046                         return -ENOMEM;
7047                 }
7048
7049                 /*
7050                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
7051                  * two words to contain special data values and no other data.
7052                  */
7053                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
7054                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
7055                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7056                 if (rc != MBX_SUCCESS) {
7057                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7058                                         "0493 SLI_CONFIG_SPECIAL mailbox "
7059                                         "failed with status x%x\n",
7060                                         rc);
7061                         rc = -EIO;
7062                 }
7063                 mempool_free(mboxq, phba->mbox_mem_pool);
7064                 break;
7065         case LPFC_SLI_INTF_IF_TYPE_2:
7066         case LPFC_SLI_INTF_IF_TYPE_1:
7067         default:
7068                 break;
7069         }
7070         return rc;
7071 }
7072
7073 /**
7074  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
7075  * @phba: pointer to lpfc hba data structure.
7076  *
7077  * This routine is invoked to check the user settable queue counts for EQs and
7078  * CQs. after this routine is called the counts will be set to valid values that
7079  * adhere to the constraints of the system's interrupt vectors and the port's
7080  * queue resources.
7081  *
7082  * Return codes
7083  *      0 - successful
7084  *      -ENOMEM - No available memory
7085  **/
7086 static int
7087 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
7088 {
7089         int cfg_fcp_io_channel;
7090         uint32_t cpu;
7091         uint32_t i = 0;
7092         int fof_vectors = phba->cfg_fof ? 1 : 0;
7093
7094         /*
7095          * Sanity check for configured queue parameters against the run-time
7096          * device parameters
7097          */
7098
7099         /* Sanity check on HBA EQ parameters */
7100         cfg_fcp_io_channel = phba->cfg_fcp_io_channel;
7101
7102         /* It doesn't make sense to have more io channels then online CPUs */
7103         for_each_present_cpu(cpu) {
7104                 if (cpu_online(cpu))
7105                         i++;
7106         }
7107         phba->sli4_hba.num_online_cpu = i;
7108         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7109         phba->sli4_hba.curr_disp_cpu = 0;
7110
7111         if (i < cfg_fcp_io_channel) {
7112                 lpfc_printf_log(phba,
7113                                 KERN_ERR, LOG_INIT,
7114                                 "3188 Reducing IO channels to match number of "
7115                                 "online CPUs: from %d to %d\n",
7116                                 cfg_fcp_io_channel, i);
7117                 cfg_fcp_io_channel = i;
7118         }
7119
7120         if (cfg_fcp_io_channel + fof_vectors >
7121             phba->sli4_hba.max_cfg_param.max_eq) {
7122                 if (phba->sli4_hba.max_cfg_param.max_eq <
7123                     LPFC_FCP_IO_CHAN_MIN) {
7124                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7125                                         "2574 Not enough EQs (%d) from the "
7126                                         "pci function for supporting FCP "
7127                                         "EQs (%d)\n",
7128                                         phba->sli4_hba.max_cfg_param.max_eq,
7129                                         phba->cfg_fcp_io_channel);
7130                         goto out_error;
7131                 }
7132                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7133                                 "2575 Reducing IO channels to match number of "
7134                                 "available EQs: from %d to %d\n",
7135                                 cfg_fcp_io_channel,
7136                                 phba->sli4_hba.max_cfg_param.max_eq);
7137                 cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
7138                         fof_vectors;
7139         }
7140
7141         /* The actual number of FCP event queues adopted */
7142         phba->cfg_fcp_io_channel = cfg_fcp_io_channel;
7143
7144         /* Get EQ depth from module parameter, fake the default for now */
7145         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
7146         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
7147
7148         /* Get CQ depth from module parameter, fake the default for now */
7149         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
7150         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
7151
7152         return 0;
7153 out_error:
7154         return -ENOMEM;
7155 }
7156
7157 /**
7158  * lpfc_sli4_queue_create - Create all the SLI4 queues
7159  * @phba: pointer to lpfc hba data structure.
7160  *
7161  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
7162  * operation. For each SLI4 queue type, the parameters such as queue entry
7163  * count (queue depth) shall be taken from the module parameter. For now,
7164  * we just use some constant number as place holder.
7165  *
7166  * Return codes
7167  *      0 - successful
7168  *      -ENOMEM - No availble memory
7169  *      -EIO - The mailbox failed to complete successfully.
7170  **/
7171 int
7172 lpfc_sli4_queue_create(struct lpfc_hba *phba)
7173 {
7174         struct lpfc_queue *qdesc;
7175         int idx;
7176
7177         /*
7178          * Create HBA Record arrays.
7179          */
7180         if (!phba->cfg_fcp_io_channel)
7181                 return -ERANGE;
7182
7183         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
7184         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
7185         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
7186         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
7187         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
7188         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
7189
7190         phba->sli4_hba.hba_eq =  kzalloc((sizeof(struct lpfc_queue *) *
7191                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7192         if (!phba->sli4_hba.hba_eq) {
7193                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7194                         "2576 Failed allocate memory for "
7195                         "fast-path EQ record array\n");
7196                 goto out_error;
7197         }
7198
7199         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
7200                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7201         if (!phba->sli4_hba.fcp_cq) {
7202                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7203                                 "2577 Failed allocate memory for fast-path "
7204                                 "CQ record array\n");
7205                 goto out_error;
7206         }
7207
7208         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
7209                                 phba->cfg_fcp_io_channel), GFP_KERNEL);
7210         if (!phba->sli4_hba.fcp_wq) {
7211                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7212                                 "2578 Failed allocate memory for fast-path "
7213                                 "WQ record array\n");
7214                 goto out_error;
7215         }
7216
7217         /*
7218          * Since the first EQ can have multiple CQs associated with it,
7219          * this array is used to quickly see if we have a FCP fast-path
7220          * CQ match.
7221          */
7222         phba->sli4_hba.fcp_cq_map = kzalloc((sizeof(uint16_t) *
7223                                          phba->cfg_fcp_io_channel), GFP_KERNEL);
7224         if (!phba->sli4_hba.fcp_cq_map) {
7225                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7226                                 "2545 Failed allocate memory for fast-path "
7227                                 "CQ map\n");
7228                 goto out_error;
7229         }
7230
7231         /*
7232          * Create HBA Event Queues (EQs).  The cfg_fcp_io_channel specifies
7233          * how many EQs to create.
7234          */
7235         for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7236
7237                 /* Create EQs */
7238                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
7239                                               phba->sli4_hba.eq_ecount);
7240                 if (!qdesc) {
7241                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7242                                         "0497 Failed allocate EQ (%d)\n", idx);
7243                         goto out_error;
7244                 }
7245                 phba->sli4_hba.hba_eq[idx] = qdesc;
7246
7247                 /* Create Fast Path FCP CQs */
7248                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7249                                               phba->sli4_hba.cq_ecount);
7250                 if (!qdesc) {
7251                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7252                                         "0499 Failed allocate fast-path FCP "
7253                                         "CQ (%d)\n", idx);
7254                         goto out_error;
7255                 }
7256                 phba->sli4_hba.fcp_cq[idx] = qdesc;
7257
7258                 /* Create Fast Path FCP WQs */
7259                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7260                                               phba->sli4_hba.wq_ecount);
7261                 if (!qdesc) {
7262                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7263                                         "0503 Failed allocate fast-path FCP "
7264                                         "WQ (%d)\n", idx);
7265                         goto out_error;
7266                 }
7267                 phba->sli4_hba.fcp_wq[idx] = qdesc;
7268         }
7269
7270
7271         /*
7272          * Create Slow Path Completion Queues (CQs)
7273          */
7274
7275         /* Create slow-path Mailbox Command Complete Queue */
7276         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7277                                       phba->sli4_hba.cq_ecount);
7278         if (!qdesc) {
7279                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7280                                 "0500 Failed allocate slow-path mailbox CQ\n");
7281                 goto out_error;
7282         }
7283         phba->sli4_hba.mbx_cq = qdesc;
7284
7285         /* Create slow-path ELS Complete Queue */
7286         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
7287                                       phba->sli4_hba.cq_ecount);
7288         if (!qdesc) {
7289                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7290                                 "0501 Failed allocate slow-path ELS CQ\n");
7291                 goto out_error;
7292         }
7293         phba->sli4_hba.els_cq = qdesc;
7294
7295
7296         /*
7297          * Create Slow Path Work Queues (WQs)
7298          */
7299
7300         /* Create Mailbox Command Queue */
7301
7302         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
7303                                       phba->sli4_hba.mq_ecount);
7304         if (!qdesc) {
7305                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7306                                 "0505 Failed allocate slow-path MQ\n");
7307                 goto out_error;
7308         }
7309         phba->sli4_hba.mbx_wq = qdesc;
7310
7311         /*
7312          * Create ELS Work Queues
7313          */
7314
7315         /* Create slow-path ELS Work Queue */
7316         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
7317                                       phba->sli4_hba.wq_ecount);
7318         if (!qdesc) {
7319                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7320                                 "0504 Failed allocate slow-path ELS WQ\n");
7321                 goto out_error;
7322         }
7323         phba->sli4_hba.els_wq = qdesc;
7324
7325         /*
7326          * Create Receive Queue (RQ)
7327          */
7328
7329         /* Create Receive Queue for header */
7330         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7331                                       phba->sli4_hba.rq_ecount);
7332         if (!qdesc) {
7333                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7334                                 "0506 Failed allocate receive HRQ\n");
7335                 goto out_error;
7336         }
7337         phba->sli4_hba.hdr_rq = qdesc;
7338
7339         /* Create Receive Queue for data */
7340         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
7341                                       phba->sli4_hba.rq_ecount);
7342         if (!qdesc) {
7343                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7344                                 "0507 Failed allocate receive DRQ\n");
7345                 goto out_error;
7346         }
7347         phba->sli4_hba.dat_rq = qdesc;
7348
7349         /* Create the Queues needed for Flash Optimized Fabric operations */
7350         if (phba->cfg_fof)
7351                 lpfc_fof_queue_create(phba);
7352         return 0;
7353
7354 out_error:
7355         lpfc_sli4_queue_destroy(phba);
7356         return -ENOMEM;
7357 }
7358
7359 /**
7360  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
7361  * @phba: pointer to lpfc hba data structure.
7362  *
7363  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
7364  * operation.
7365  *
7366  * Return codes
7367  *      0 - successful
7368  *      -ENOMEM - No available memory
7369  *      -EIO - The mailbox failed to complete successfully.
7370  **/
7371 void
7372 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
7373 {
7374         int idx;
7375
7376         if (phba->cfg_fof)
7377                 lpfc_fof_queue_destroy(phba);
7378
7379         if (phba->sli4_hba.hba_eq != NULL) {
7380                 /* Release HBA event queue */
7381                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7382                         if (phba->sli4_hba.hba_eq[idx] != NULL) {
7383                                 lpfc_sli4_queue_free(
7384                                         phba->sli4_hba.hba_eq[idx]);
7385                                 phba->sli4_hba.hba_eq[idx] = NULL;
7386                         }
7387                 }
7388                 kfree(phba->sli4_hba.hba_eq);
7389                 phba->sli4_hba.hba_eq = NULL;
7390         }
7391
7392         if (phba->sli4_hba.fcp_cq != NULL) {
7393                 /* Release FCP completion queue */
7394                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7395                         if (phba->sli4_hba.fcp_cq[idx] != NULL) {
7396                                 lpfc_sli4_queue_free(
7397                                         phba->sli4_hba.fcp_cq[idx]);
7398                                 phba->sli4_hba.fcp_cq[idx] = NULL;
7399                         }
7400                 }
7401                 kfree(phba->sli4_hba.fcp_cq);
7402                 phba->sli4_hba.fcp_cq = NULL;
7403         }
7404
7405         if (phba->sli4_hba.fcp_wq != NULL) {
7406                 /* Release FCP work queue */
7407                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
7408                         if (phba->sli4_hba.fcp_wq[idx] != NULL) {
7409                                 lpfc_sli4_queue_free(
7410                                         phba->sli4_hba.fcp_wq[idx]);
7411                                 phba->sli4_hba.fcp_wq[idx] = NULL;
7412                         }
7413                 }
7414                 kfree(phba->sli4_hba.fcp_wq);
7415                 phba->sli4_hba.fcp_wq = NULL;
7416         }
7417
7418         /* Release FCP CQ mapping array */
7419         if (phba->sli4_hba.fcp_cq_map != NULL) {
7420                 kfree(phba->sli4_hba.fcp_cq_map);
7421                 phba->sli4_hba.fcp_cq_map = NULL;
7422         }
7423
7424         /* Release mailbox command work queue */
7425         if (phba->sli4_hba.mbx_wq != NULL) {
7426                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
7427                 phba->sli4_hba.mbx_wq = NULL;
7428         }
7429
7430         /* Release ELS work queue */
7431         if (phba->sli4_hba.els_wq != NULL) {
7432                 lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
7433                 phba->sli4_hba.els_wq = NULL;
7434         }
7435
7436         /* Release unsolicited receive queue */
7437         if (phba->sli4_hba.hdr_rq != NULL) {
7438                 lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
7439                 phba->sli4_hba.hdr_rq = NULL;
7440         }
7441         if (phba->sli4_hba.dat_rq != NULL) {
7442                 lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
7443                 phba->sli4_hba.dat_rq = NULL;
7444         }
7445
7446         /* Release ELS complete queue */
7447         if (phba->sli4_hba.els_cq != NULL) {
7448                 lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
7449                 phba->sli4_hba.els_cq = NULL;
7450         }
7451
7452         /* Release mailbox command complete queue */
7453         if (phba->sli4_hba.mbx_cq != NULL) {
7454                 lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
7455                 phba->sli4_hba.mbx_cq = NULL;
7456         }
7457
7458         return;
7459 }
7460
7461 /**
7462  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
7463  * @phba: pointer to lpfc hba data structure.
7464  *
7465  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
7466  * operation.
7467  *
7468  * Return codes
7469  *      0 - successful
7470  *      -ENOMEM - No available memory
7471  *      -EIO - The mailbox failed to complete successfully.
7472  **/
7473 int
7474 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
7475 {
7476         struct lpfc_sli *psli = &phba->sli;
7477         struct lpfc_sli_ring *pring;
7478         int rc = -ENOMEM;
7479         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
7480         int fcp_cq_index = 0;
7481         uint32_t shdr_status, shdr_add_status;
7482         union lpfc_sli4_cfg_shdr *shdr;
7483         LPFC_MBOXQ_t *mboxq;
7484         uint32_t length;
7485
7486         /* Check for dual-ULP support */
7487         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7488         if (!mboxq) {
7489                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7490                                 "3249 Unable to allocate memory for "
7491                                 "QUERY_FW_CFG mailbox command\n");
7492                 return -ENOMEM;
7493         }
7494         length = (sizeof(struct lpfc_mbx_query_fw_config) -
7495                   sizeof(struct lpfc_sli4_cfg_mhdr));
7496         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7497                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
7498                          length, LPFC_SLI4_MBX_EMBED);
7499
7500         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7501
7502         shdr = (union lpfc_sli4_cfg_shdr *)
7503                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7504         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7505         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
7506         if (shdr_status || shdr_add_status || rc) {
7507                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7508                                 "3250 QUERY_FW_CFG mailbox failed with status "
7509                                 "x%x add_status x%x, mbx status x%x\n",
7510                                 shdr_status, shdr_add_status, rc);
7511                 if (rc != MBX_TIMEOUT)
7512                         mempool_free(mboxq, phba->mbox_mem_pool);
7513                 rc = -ENXIO;
7514                 goto out_error;
7515         }
7516
7517         phba->sli4_hba.fw_func_mode =
7518                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
7519         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
7520         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
7521         phba->sli4_hba.physical_port =
7522                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
7523         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7524                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
7525                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
7526                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
7527
7528         if (rc != MBX_TIMEOUT)
7529                 mempool_free(mboxq, phba->mbox_mem_pool);
7530
7531         /*
7532          * Set up HBA Event Queues (EQs)
7533          */
7534
7535         /* Set up HBA event queue */
7536         if (phba->cfg_fcp_io_channel && !phba->sli4_hba.hba_eq) {
7537                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7538                                 "3147 Fast-path EQs not allocated\n");
7539                 rc = -ENOMEM;
7540                 goto out_error;
7541         }
7542         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
7543                 if (!phba->sli4_hba.hba_eq[fcp_eqidx]) {
7544                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7545                                         "0522 Fast-path EQ (%d) not "
7546                                         "allocated\n", fcp_eqidx);
7547                         rc = -ENOMEM;
7548                         goto out_destroy_hba_eq;
7549                 }
7550                 rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[fcp_eqidx],
7551                          (phba->cfg_fcp_imax / phba->cfg_fcp_io_channel));
7552                 if (rc) {
7553                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7554                                         "0523 Failed setup of fast-path EQ "
7555                                         "(%d), rc = 0x%x\n", fcp_eqidx,
7556                                         (uint32_t)rc);
7557                         goto out_destroy_hba_eq;
7558                 }
7559                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7560                                 "2584 HBA EQ setup: "
7561                                 "queue[%d]-id=%d\n", fcp_eqidx,
7562                                 phba->sli4_hba.hba_eq[fcp_eqidx]->queue_id);
7563         }
7564
7565         /* Set up fast-path FCP Response Complete Queue */
7566         if (!phba->sli4_hba.fcp_cq) {
7567                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7568                                 "3148 Fast-path FCP CQ array not "
7569                                 "allocated\n");
7570                 rc = -ENOMEM;
7571                 goto out_destroy_hba_eq;
7572         }
7573
7574         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_io_channel; fcp_cqidx++) {
7575                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7576                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7577                                         "0526 Fast-path FCP CQ (%d) not "
7578                                         "allocated\n", fcp_cqidx);
7579                         rc = -ENOMEM;
7580                         goto out_destroy_fcp_cq;
7581                 }
7582                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
7583                         phba->sli4_hba.hba_eq[fcp_cqidx], LPFC_WCQ, LPFC_FCP);
7584                 if (rc) {
7585                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7586                                         "0527 Failed setup of fast-path FCP "
7587                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx,
7588                                         (uint32_t)rc);
7589                         goto out_destroy_fcp_cq;
7590                 }
7591
7592                 /* Setup fcp_cq_map for fast lookup */
7593                 phba->sli4_hba.fcp_cq_map[fcp_cqidx] =
7594                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id;
7595
7596                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7597                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
7598                                 "parent seq[%d]-id=%d\n",
7599                                 fcp_cqidx,
7600                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7601                                 fcp_cqidx,
7602                                 phba->sli4_hba.hba_eq[fcp_cqidx]->queue_id);
7603         }
7604
7605         /* Set up fast-path FCP Work Queue */
7606         if (!phba->sli4_hba.fcp_wq) {
7607                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7608                                 "3149 Fast-path FCP WQ array not "
7609                                 "allocated\n");
7610                 rc = -ENOMEM;
7611                 goto out_destroy_fcp_cq;
7612         }
7613
7614         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_io_channel; fcp_wqidx++) {
7615                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7616                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7617                                         "0534 Fast-path FCP WQ (%d) not "
7618                                         "allocated\n", fcp_wqidx);
7619                         rc = -ENOMEM;
7620                         goto out_destroy_fcp_wq;
7621                 }
7622                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7623                                     phba->sli4_hba.fcp_cq[fcp_wqidx],
7624                                     LPFC_FCP);
7625                 if (rc) {
7626                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7627                                         "0535 Failed setup of fast-path FCP "
7628                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx,
7629                                         (uint32_t)rc);
7630                         goto out_destroy_fcp_wq;
7631                 }
7632
7633                 /* Bind this WQ to the next FCP ring */
7634                 pring = &psli->ring[MAX_SLI3_CONFIGURED_RINGS + fcp_wqidx];
7635                 pring->sli.sli4.wqp = (void *)phba->sli4_hba.fcp_wq[fcp_wqidx];
7636                 phba->sli4_hba.fcp_cq[fcp_wqidx]->pring = pring;
7637
7638                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7639                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7640                                 "parent cq[%d]-id=%d\n",
7641                                 fcp_wqidx,
7642                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7643                                 fcp_cq_index,
7644                                 phba->sli4_hba.fcp_cq[fcp_wqidx]->queue_id);
7645         }
7646         /*
7647          * Set up Complete Queues (CQs)
7648          */
7649
7650         /* Set up slow-path MBOX Complete Queue as the first CQ */
7651         if (!phba->sli4_hba.mbx_cq) {
7652                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7653                                 "0528 Mailbox CQ not allocated\n");
7654                 rc = -ENOMEM;
7655                 goto out_destroy_fcp_wq;
7656         }
7657         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq,
7658                         phba->sli4_hba.hba_eq[0], LPFC_MCQ, LPFC_MBOX);
7659         if (rc) {
7660                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7661                                 "0529 Failed setup of slow-path mailbox CQ: "
7662                                 "rc = 0x%x\n", (uint32_t)rc);
7663                 goto out_destroy_fcp_wq;
7664         }
7665         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7666                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
7667                         phba->sli4_hba.mbx_cq->queue_id,
7668                         phba->sli4_hba.hba_eq[0]->queue_id);
7669
7670         /* Set up slow-path ELS Complete Queue */
7671         if (!phba->sli4_hba.els_cq) {
7672                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7673                                 "0530 ELS CQ not allocated\n");
7674                 rc = -ENOMEM;
7675                 goto out_destroy_mbx_cq;
7676         }
7677         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq,
7678                         phba->sli4_hba.hba_eq[0], LPFC_WCQ, LPFC_ELS);
7679         if (rc) {
7680                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7681                                 "0531 Failed setup of slow-path ELS CQ: "
7682                                 "rc = 0x%x\n", (uint32_t)rc);
7683                 goto out_destroy_mbx_cq;
7684         }
7685         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7686                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7687                         phba->sli4_hba.els_cq->queue_id,
7688                         phba->sli4_hba.hba_eq[0]->queue_id);
7689
7690         /*
7691          * Set up all the Work Queues (WQs)
7692          */
7693
7694         /* Set up Mailbox Command Queue */
7695         if (!phba->sli4_hba.mbx_wq) {
7696                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7697                                 "0538 Slow-path MQ not allocated\n");
7698                 rc = -ENOMEM;
7699                 goto out_destroy_els_cq;
7700         }
7701         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7702                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7703         if (rc) {
7704                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7705                                 "0539 Failed setup of slow-path MQ: "
7706                                 "rc = 0x%x\n", rc);
7707                 goto out_destroy_els_cq;
7708         }
7709         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7710                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7711                         phba->sli4_hba.mbx_wq->queue_id,
7712                         phba->sli4_hba.mbx_cq->queue_id);
7713
7714         /* Set up slow-path ELS Work Queue */
7715         if (!phba->sli4_hba.els_wq) {
7716                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7717                                 "0536 Slow-path ELS WQ not allocated\n");
7718                 rc = -ENOMEM;
7719                 goto out_destroy_mbx_wq;
7720         }
7721         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7722                             phba->sli4_hba.els_cq, LPFC_ELS);
7723         if (rc) {
7724                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7725                                 "0537 Failed setup of slow-path ELS WQ: "
7726                                 "rc = 0x%x\n", (uint32_t)rc);
7727                 goto out_destroy_mbx_wq;
7728         }
7729
7730         /* Bind this WQ to the ELS ring */
7731         pring = &psli->ring[LPFC_ELS_RING];
7732         pring->sli.sli4.wqp = (void *)phba->sli4_hba.els_wq;
7733         phba->sli4_hba.els_cq->pring = pring;
7734
7735         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7736                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7737                         phba->sli4_hba.els_wq->queue_id,
7738                         phba->sli4_hba.els_cq->queue_id);
7739
7740         /*
7741          * Create Receive Queue (RQ)
7742          */
7743         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7744                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7745                                 "0540 Receive Queue not allocated\n");
7746                 rc = -ENOMEM;
7747                 goto out_destroy_els_wq;
7748         }
7749
7750         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7751         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7752
7753         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7754                             phba->sli4_hba.els_cq, LPFC_USOL);
7755         if (rc) {
7756                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7757                                 "0541 Failed setup of Receive Queue: "
7758                                 "rc = 0x%x\n", (uint32_t)rc);
7759                 goto out_destroy_fcp_wq;
7760         }
7761
7762         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7763                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7764                         "parent cq-id=%d\n",
7765                         phba->sli4_hba.hdr_rq->queue_id,
7766                         phba->sli4_hba.dat_rq->queue_id,
7767                         phba->sli4_hba.els_cq->queue_id);
7768
7769         if (phba->cfg_fof) {
7770                 rc = lpfc_fof_queue_setup(phba);
7771                 if (rc) {
7772                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7773                                         "0549 Failed setup of FOF Queues: "
7774                                         "rc = 0x%x\n", rc);
7775                         goto out_destroy_els_rq;
7776                 }
7777         }
7778
7779         /*
7780          * Configure EQ delay multipier for interrupt coalescing using
7781          * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time.
7782          */
7783         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
7784                         fcp_eqidx += LPFC_MAX_EQ_DELAY)
7785                 lpfc_modify_fcp_eq_delay(phba, fcp_eqidx);
7786         return 0;
7787
7788 out_destroy_els_rq:
7789         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7790 out_destroy_els_wq:
7791         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7792 out_destroy_mbx_wq:
7793         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7794 out_destroy_els_cq:
7795         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7796 out_destroy_mbx_cq:
7797         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7798 out_destroy_fcp_wq:
7799         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7800                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7801 out_destroy_fcp_cq:
7802         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7803                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7804 out_destroy_hba_eq:
7805         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7806                 lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_eqidx]);
7807 out_error:
7808         return rc;
7809 }
7810
7811 /**
7812  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7813  * @phba: pointer to lpfc hba data structure.
7814  *
7815  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7816  * operation.
7817  *
7818  * Return codes
7819  *      0 - successful
7820  *      -ENOMEM - No available memory
7821  *      -EIO - The mailbox failed to complete successfully.
7822  **/
7823 void
7824 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7825 {
7826         int fcp_qidx;
7827
7828         /* Unset the queues created for Flash Optimized Fabric operations */
7829         if (phba->cfg_fof)
7830                 lpfc_fof_queue_destroy(phba);
7831         /* Unset mailbox command work queue */
7832         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7833         /* Unset ELS work queue */
7834         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7835         /* Unset unsolicited receive queue */
7836         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7837         /* Unset FCP work queue */
7838         if (phba->sli4_hba.fcp_wq) {
7839                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7840                      fcp_qidx++)
7841                         lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7842         }
7843         /* Unset mailbox command complete queue */
7844         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7845         /* Unset ELS complete queue */
7846         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7847         /* Unset FCP response complete queue */
7848         if (phba->sli4_hba.fcp_cq) {
7849                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7850                      fcp_qidx++)
7851                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7852         }
7853         /* Unset fast-path event queue */
7854         if (phba->sli4_hba.hba_eq) {
7855                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_io_channel;
7856                      fcp_qidx++)
7857                         lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[fcp_qidx]);
7858         }
7859 }
7860
7861 /**
7862  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7863  * @phba: pointer to lpfc hba data structure.
7864  *
7865  * This routine is invoked to allocate and set up a pool of completion queue
7866  * events. The body of the completion queue event is a completion queue entry
7867  * CQE. For now, this pool is used for the interrupt service routine to queue
7868  * the following HBA completion queue events for the worker thread to process:
7869  *   - Mailbox asynchronous events
7870  *   - Receive queue completion unsolicited events
7871  * Later, this can be used for all the slow-path events.
7872  *
7873  * Return codes
7874  *      0 - successful
7875  *      -ENOMEM - No available memory
7876  **/
7877 static int
7878 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7879 {
7880         struct lpfc_cq_event *cq_event;
7881         int i;
7882
7883         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7884                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7885                 if (!cq_event)
7886                         goto out_pool_create_fail;
7887                 list_add_tail(&cq_event->list,
7888                               &phba->sli4_hba.sp_cqe_event_pool);
7889         }
7890         return 0;
7891
7892 out_pool_create_fail:
7893         lpfc_sli4_cq_event_pool_destroy(phba);
7894         return -ENOMEM;
7895 }
7896
7897 /**
7898  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7899  * @phba: pointer to lpfc hba data structure.
7900  *
7901  * This routine is invoked to free the pool of completion queue events at
7902  * driver unload time. Note that, it is the responsibility of the driver
7903  * cleanup routine to free all the outstanding completion-queue events
7904  * allocated from this pool back into the pool before invoking this routine
7905  * to destroy the pool.
7906  **/
7907 static void
7908 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7909 {
7910         struct lpfc_cq_event *cq_event, *next_cq_event;
7911
7912         list_for_each_entry_safe(cq_event, next_cq_event,
7913                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7914                 list_del(&cq_event->list);
7915                 kfree(cq_event);
7916         }
7917 }
7918
7919 /**
7920  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7921  * @phba: pointer to lpfc hba data structure.
7922  *
7923  * This routine is the lock free version of the API invoked to allocate a
7924  * completion-queue event from the free pool.
7925  *
7926  * Return: Pointer to the newly allocated completion-queue event if successful
7927  *         NULL otherwise.
7928  **/
7929 struct lpfc_cq_event *
7930 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7931 {
7932         struct lpfc_cq_event *cq_event = NULL;
7933
7934         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7935                          struct lpfc_cq_event, list);
7936         return cq_event;
7937 }
7938
7939 /**
7940  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7941  * @phba: pointer to lpfc hba data structure.
7942  *
7943  * This routine is the lock version of the API invoked to allocate a
7944  * completion-queue event from the free pool.
7945  *
7946  * Return: Pointer to the newly allocated completion-queue event if successful
7947  *         NULL otherwise.
7948  **/
7949 struct lpfc_cq_event *
7950 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7951 {
7952         struct lpfc_cq_event *cq_event;
7953         unsigned long iflags;
7954
7955         spin_lock_irqsave(&phba->hbalock, iflags);
7956         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7957         spin_unlock_irqrestore(&phba->hbalock, iflags);
7958         return cq_event;
7959 }
7960
7961 /**
7962  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7963  * @phba: pointer to lpfc hba data structure.
7964  * @cq_event: pointer to the completion queue event to be freed.
7965  *
7966  * This routine is the lock free version of the API invoked to release a
7967  * completion-queue event back into the free pool.
7968  **/
7969 void
7970 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7971                              struct lpfc_cq_event *cq_event)
7972 {
7973         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7974 }
7975
7976 /**
7977  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7978  * @phba: pointer to lpfc hba data structure.
7979  * @cq_event: pointer to the completion queue event to be freed.
7980  *
7981  * This routine is the lock version of the API invoked to release a
7982  * completion-queue event back into the free pool.
7983  **/
7984 void
7985 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7986                            struct lpfc_cq_event *cq_event)
7987 {
7988         unsigned long iflags;
7989         spin_lock_irqsave(&phba->hbalock, iflags);
7990         __lpfc_sli4_cq_event_release(phba, cq_event);
7991         spin_unlock_irqrestore(&phba->hbalock, iflags);
7992 }
7993
7994 /**
7995  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7996  * @phba: pointer to lpfc hba data structure.
7997  *
7998  * This routine is to free all the pending completion-queue events to the
7999  * back into the free pool for device reset.
8000  **/
8001 static void
8002 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
8003 {
8004         LIST_HEAD(cqelist);
8005         struct lpfc_cq_event *cqe;
8006         unsigned long iflags;
8007
8008         /* Retrieve all the pending WCQEs from pending WCQE lists */
8009         spin_lock_irqsave(&phba->hbalock, iflags);
8010         /* Pending FCP XRI abort events */
8011         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8012                          &cqelist);
8013         /* Pending ELS XRI abort events */
8014         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8015                          &cqelist);
8016         /* Pending asynnc events */
8017         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
8018                          &cqelist);
8019         spin_unlock_irqrestore(&phba->hbalock, iflags);
8020
8021         while (!list_empty(&cqelist)) {
8022                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
8023                 lpfc_sli4_cq_event_release(phba, cqe);
8024         }
8025 }
8026
8027 /**
8028  * lpfc_pci_function_reset - Reset pci function.
8029  * @phba: pointer to lpfc hba data structure.
8030  *
8031  * This routine is invoked to request a PCI function reset. It will destroys
8032  * all resources assigned to the PCI function which originates this request.
8033  *
8034  * Return codes
8035  *      0 - successful
8036  *      -ENOMEM - No available memory
8037  *      -EIO - The mailbox failed to complete successfully.
8038  **/
8039 int
8040 lpfc_pci_function_reset(struct lpfc_hba *phba)
8041 {
8042         LPFC_MBOXQ_t *mboxq;
8043         uint32_t rc = 0, if_type;
8044         uint32_t shdr_status, shdr_add_status;
8045         uint32_t rdy_chk;
8046         uint32_t port_reset = 0;
8047         union lpfc_sli4_cfg_shdr *shdr;
8048         struct lpfc_register reg_data;
8049         uint16_t devid;
8050
8051         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8052         switch (if_type) {
8053         case LPFC_SLI_INTF_IF_TYPE_0:
8054                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8055                                                        GFP_KERNEL);
8056                 if (!mboxq) {
8057                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8058                                         "0494 Unable to allocate memory for "
8059                                         "issuing SLI_FUNCTION_RESET mailbox "
8060                                         "command\n");
8061                         return -ENOMEM;
8062                 }
8063
8064                 /* Setup PCI function reset mailbox-ioctl command */
8065                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8066                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
8067                                  LPFC_SLI4_MBX_EMBED);
8068                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8069                 shdr = (union lpfc_sli4_cfg_shdr *)
8070                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
8071                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
8072                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
8073                                          &shdr->response);
8074                 if (rc != MBX_TIMEOUT)
8075                         mempool_free(mboxq, phba->mbox_mem_pool);
8076                 if (shdr_status || shdr_add_status || rc) {
8077                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8078                                         "0495 SLI_FUNCTION_RESET mailbox "
8079                                         "failed with status x%x add_status x%x,"
8080                                         " mbx status x%x\n",
8081                                         shdr_status, shdr_add_status, rc);
8082                         rc = -ENXIO;
8083                 }
8084                 break;
8085         case LPFC_SLI_INTF_IF_TYPE_2:
8086 wait:
8087                 /*
8088                  * Poll the Port Status Register and wait for RDY for
8089                  * up to 30 seconds. If the port doesn't respond, treat
8090                  * it as an error.
8091                  */
8092                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
8093                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
8094                                 STATUSregaddr, &reg_data.word0)) {
8095                                 rc = -ENODEV;
8096                                 goto out;
8097                         }
8098                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
8099                                 break;
8100                         msleep(20);
8101                 }
8102
8103                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
8104                         phba->work_status[0] = readl(
8105                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
8106                         phba->work_status[1] = readl(
8107                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
8108                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8109                                         "2890 Port not ready, port status reg "
8110                                         "0x%x error 1=0x%x, error 2=0x%x\n",
8111                                         reg_data.word0,
8112                                         phba->work_status[0],
8113                                         phba->work_status[1]);
8114                         rc = -ENODEV;
8115                         goto out;
8116                 }
8117
8118                 if (!port_reset) {
8119                         /*
8120                          * Reset the port now
8121                          */
8122                         reg_data.word0 = 0;
8123                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
8124                                LPFC_SLIPORT_LITTLE_ENDIAN);
8125                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
8126                                LPFC_SLIPORT_INIT_PORT);
8127                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
8128                                CTRLregaddr);
8129                         /* flush */
8130                         pci_read_config_word(phba->pcidev,
8131                                              PCI_DEVICE_ID, &devid);
8132
8133                         port_reset = 1;
8134                         msleep(20);
8135                         goto wait;
8136                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
8137                         rc = -ENODEV;
8138                         goto out;
8139                 }
8140                 break;
8141
8142         case LPFC_SLI_INTF_IF_TYPE_1:
8143         default:
8144                 break;
8145         }
8146
8147 out:
8148         /* Catch the not-ready port failure after a port reset. */
8149         if (rc) {
8150                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8151                                 "3317 HBA not functional: IP Reset Failed "
8152                                 "try: echo fw_reset > board_mode\n");
8153                 rc = -ENODEV;
8154         }
8155
8156         return rc;
8157 }
8158
8159 /**
8160  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
8161  * @phba: pointer to lpfc hba data structure.
8162  *
8163  * This routine is invoked to set up the PCI device memory space for device
8164  * with SLI-4 interface spec.
8165  *
8166  * Return codes
8167  *      0 - successful
8168  *      other values - error
8169  **/
8170 static int
8171 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
8172 {
8173         struct pci_dev *pdev;
8174         unsigned long bar0map_len, bar1map_len, bar2map_len;
8175         int error = -ENODEV;
8176         uint32_t if_type;
8177
8178         /* Obtain PCI device reference */
8179         if (!phba->pcidev)
8180                 return error;
8181         else
8182                 pdev = phba->pcidev;
8183
8184         /* Set the device DMA mask size */
8185         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
8186          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
8187                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
8188                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
8189                         return error;
8190                 }
8191         }
8192
8193         /*
8194          * The BARs and register set definitions and offset locations are
8195          * dependent on the if_type.
8196          */
8197         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
8198                                   &phba->sli4_hba.sli_intf.word0)) {
8199                 return error;
8200         }
8201
8202         /* There is no SLI3 failback for SLI4 devices. */
8203         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
8204             LPFC_SLI_INTF_VALID) {
8205                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8206                                 "2894 SLI_INTF reg contents invalid "
8207                                 "sli_intf reg 0x%x\n",
8208                                 phba->sli4_hba.sli_intf.word0);
8209                 return error;
8210         }
8211
8212         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8213         /*
8214          * Get the bus address of SLI4 device Bar regions and the
8215          * number of bytes required by each mapping. The mapping of the
8216          * particular PCI BARs regions is dependent on the type of
8217          * SLI4 device.
8218          */
8219         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
8220                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
8221                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
8222
8223                 /*
8224                  * Map SLI4 PCI Config Space Register base to a kernel virtual
8225                  * addr
8226                  */
8227                 phba->sli4_hba.conf_regs_memmap_p =
8228                         ioremap(phba->pci_bar0_map, bar0map_len);
8229                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8230                         dev_printk(KERN_ERR, &pdev->dev,
8231                                    "ioremap failed for SLI4 PCI config "
8232                                    "registers.\n");
8233                         goto out;
8234                 }
8235                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
8236                 /* Set up BAR0 PCI config space register memory map */
8237                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8238         } else {
8239                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
8240                 bar0map_len = pci_resource_len(pdev, 1);
8241                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8242                         dev_printk(KERN_ERR, &pdev->dev,
8243                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
8244                         goto out;
8245                 }
8246                 phba->sli4_hba.conf_regs_memmap_p =
8247                                 ioremap(phba->pci_bar0_map, bar0map_len);
8248                 if (!phba->sli4_hba.conf_regs_memmap_p) {
8249                         dev_printk(KERN_ERR, &pdev->dev,
8250                                 "ioremap failed for SLI4 PCI config "
8251                                 "registers.\n");
8252                                 goto out;
8253                 }
8254                 lpfc_sli4_bar0_register_memmap(phba, if_type);
8255         }
8256
8257         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8258             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
8259                 /*
8260                  * Map SLI4 if type 0 HBA Control Register base to a kernel
8261                  * virtual address and setup the registers.
8262                  */
8263                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
8264                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
8265                 phba->sli4_hba.ctrl_regs_memmap_p =
8266                                 ioremap(phba->pci_bar1_map, bar1map_len);
8267                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
8268                         dev_printk(KERN_ERR, &pdev->dev,
8269                            "ioremap failed for SLI4 HBA control registers.\n");
8270                         goto out_iounmap_conf;
8271                 }
8272                 phba->pci_bar2_memmap_p = phba->sli4_hba.ctrl_regs_memmap_p;
8273                 lpfc_sli4_bar1_register_memmap(phba);
8274         }
8275
8276         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
8277             (pci_resource_start(pdev, PCI_64BIT_BAR4))) {
8278                 /*
8279                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
8280                  * virtual address and setup the registers.
8281                  */
8282                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
8283                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
8284                 phba->sli4_hba.drbl_regs_memmap_p =
8285                                 ioremap(phba->pci_bar2_map, bar2map_len);
8286                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
8287                         dev_printk(KERN_ERR, &pdev->dev,
8288                            "ioremap failed for SLI4 HBA doorbell registers.\n");
8289                         goto out_iounmap_ctrl;
8290                 }
8291                 phba->pci_bar4_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
8292                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
8293                 if (error)
8294                         goto out_iounmap_all;
8295         }
8296
8297         return 0;
8298
8299 out_iounmap_all:
8300         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8301 out_iounmap_ctrl:
8302         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8303 out_iounmap_conf:
8304         iounmap(phba->sli4_hba.conf_regs_memmap_p);
8305 out:
8306         return error;
8307 }
8308
8309 /**
8310  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
8311  * @phba: pointer to lpfc hba data structure.
8312  *
8313  * This routine is invoked to unset the PCI device memory space for device
8314  * with SLI-4 interface spec.
8315  **/
8316 static void
8317 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
8318 {
8319         uint32_t if_type;
8320         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8321
8322         switch (if_type) {
8323         case LPFC_SLI_INTF_IF_TYPE_0:
8324                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
8325                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
8326                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8327                 break;
8328         case LPFC_SLI_INTF_IF_TYPE_2:
8329                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
8330                 break;
8331         case LPFC_SLI_INTF_IF_TYPE_1:
8332         default:
8333                 dev_printk(KERN_ERR, &phba->pcidev->dev,
8334                            "FATAL - unsupported SLI4 interface type - %d\n",
8335                            if_type);
8336                 break;
8337         }
8338 }
8339
8340 /**
8341  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
8342  * @phba: pointer to lpfc hba data structure.
8343  *
8344  * This routine is invoked to enable the MSI-X interrupt vectors to device
8345  * with SLI-3 interface specs. The kernel function pci_enable_msix_exact()
8346  * is called to enable the MSI-X vectors. Note that pci_enable_msix_exact(),
8347  * once invoked, enables either all or nothing, depending on the current
8348  * availability of PCI vector resources. The device driver is responsible
8349  * for calling the individual request_irq() to register each MSI-X vector
8350  * with a interrupt handler, which is done in this function. Note that
8351  * later when device is unloading, the driver should always call free_irq()
8352  * on all MSI-X vectors it has done request_irq() on before calling
8353  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8354  * will be left with MSI-X enabled and leaks its vectors.
8355  *
8356  * Return codes
8357  *   0 - successful
8358  *   other values - error
8359  **/
8360 static int
8361 lpfc_sli_enable_msix(struct lpfc_hba *phba)
8362 {
8363         int rc, i;
8364         LPFC_MBOXQ_t *pmb;
8365
8366         /* Set up MSI-X multi-message vectors */
8367         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8368                 phba->msix_entries[i].entry = i;
8369
8370         /* Configure MSI-X capability structure */
8371         rc = pci_enable_msix_exact(phba->pcidev, phba->msix_entries,
8372                                    LPFC_MSIX_VECTORS);
8373         if (rc) {
8374                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8375                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
8376                 goto vec_fail_out;
8377         }
8378         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8379                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8380                                 "0477 MSI-X entry[%d]: vector=x%x "
8381                                 "message=%d\n", i,
8382                                 phba->msix_entries[i].vector,
8383                                 phba->msix_entries[i].entry);
8384         /*
8385          * Assign MSI-X vectors to interrupt handlers
8386          */
8387
8388         /* vector-0 is associated to slow-path handler */
8389         rc = request_irq(phba->msix_entries[0].vector,
8390                          &lpfc_sli_sp_intr_handler, 0,
8391                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
8392         if (rc) {
8393                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8394                                 "0421 MSI-X slow-path request_irq failed "
8395                                 "(%d)\n", rc);
8396                 goto msi_fail_out;
8397         }
8398
8399         /* vector-1 is associated to fast-path handler */
8400         rc = request_irq(phba->msix_entries[1].vector,
8401                          &lpfc_sli_fp_intr_handler, 0,
8402                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
8403
8404         if (rc) {
8405                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8406                                 "0429 MSI-X fast-path request_irq failed "
8407                                 "(%d)\n", rc);
8408                 goto irq_fail_out;
8409         }
8410
8411         /*
8412          * Configure HBA MSI-X attention conditions to messages
8413          */
8414         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
8415
8416         if (!pmb) {
8417                 rc = -ENOMEM;
8418                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8419                                 "0474 Unable to allocate memory for issuing "
8420                                 "MBOX_CONFIG_MSI command\n");
8421                 goto mem_fail_out;
8422         }
8423         rc = lpfc_config_msi(phba, pmb);
8424         if (rc)
8425                 goto mbx_fail_out;
8426         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
8427         if (rc != MBX_SUCCESS) {
8428                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
8429                                 "0351 Config MSI mailbox command failed, "
8430                                 "mbxCmd x%x, mbxStatus x%x\n",
8431                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
8432                 goto mbx_fail_out;
8433         }
8434
8435         /* Free memory allocated for mailbox command */
8436         mempool_free(pmb, phba->mbox_mem_pool);
8437         return rc;
8438
8439 mbx_fail_out:
8440         /* Free memory allocated for mailbox command */
8441         mempool_free(pmb, phba->mbox_mem_pool);
8442
8443 mem_fail_out:
8444         /* free the irq already requested */
8445         free_irq(phba->msix_entries[1].vector, phba);
8446
8447 irq_fail_out:
8448         /* free the irq already requested */
8449         free_irq(phba->msix_entries[0].vector, phba);
8450
8451 msi_fail_out:
8452         /* Unconfigure MSI-X capability structure */
8453         pci_disable_msix(phba->pcidev);
8454
8455 vec_fail_out:
8456         return rc;
8457 }
8458
8459 /**
8460  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
8461  * @phba: pointer to lpfc hba data structure.
8462  *
8463  * This routine is invoked to release the MSI-X vectors and then disable the
8464  * MSI-X interrupt mode to device with SLI-3 interface spec.
8465  **/
8466 static void
8467 lpfc_sli_disable_msix(struct lpfc_hba *phba)
8468 {
8469         int i;
8470
8471         /* Free up MSI-X multi-message vectors */
8472         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
8473                 free_irq(phba->msix_entries[i].vector, phba);
8474         /* Disable MSI-X */
8475         pci_disable_msix(phba->pcidev);
8476
8477         return;
8478 }
8479
8480 /**
8481  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
8482  * @phba: pointer to lpfc hba data structure.
8483  *
8484  * This routine is invoked to enable the MSI interrupt mode to device with
8485  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
8486  * enable the MSI vector. The device driver is responsible for calling the
8487  * request_irq() to register MSI vector with a interrupt the handler, which
8488  * is done in this function.
8489  *
8490  * Return codes
8491  *      0 - successful
8492  *      other values - error
8493  */
8494 static int
8495 lpfc_sli_enable_msi(struct lpfc_hba *phba)
8496 {
8497         int rc;
8498
8499         rc = pci_enable_msi(phba->pcidev);
8500         if (!rc)
8501                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8502                                 "0462 PCI enable MSI mode success.\n");
8503         else {
8504                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8505                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
8506                 return rc;
8507         }
8508
8509         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8510                          0, LPFC_DRIVER_NAME, phba);
8511         if (rc) {
8512                 pci_disable_msi(phba->pcidev);
8513                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8514                                 "0478 MSI request_irq failed (%d)\n", rc);
8515         }
8516         return rc;
8517 }
8518
8519 /**
8520  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
8521  * @phba: pointer to lpfc hba data structure.
8522  *
8523  * This routine is invoked to disable the MSI interrupt mode to device with
8524  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
8525  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8526  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8527  * its vector.
8528  */
8529 static void
8530 lpfc_sli_disable_msi(struct lpfc_hba *phba)
8531 {
8532         free_irq(phba->pcidev->irq, phba);
8533         pci_disable_msi(phba->pcidev);
8534         return;
8535 }
8536
8537 /**
8538  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8539  * @phba: pointer to lpfc hba data structure.
8540  *
8541  * This routine is invoked to enable device interrupt and associate driver's
8542  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8543  * spec. Depends on the interrupt mode configured to the driver, the driver
8544  * will try to fallback from the configured interrupt mode to an interrupt
8545  * mode which is supported by the platform, kernel, and device in the order
8546  * of:
8547  * MSI-X -> MSI -> IRQ.
8548  *
8549  * Return codes
8550  *   0 - successful
8551  *   other values - error
8552  **/
8553 static uint32_t
8554 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8555 {
8556         uint32_t intr_mode = LPFC_INTR_ERROR;
8557         int retval;
8558
8559         if (cfg_mode == 2) {
8560                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8561                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8562                 if (!retval) {
8563                         /* Now, try to enable MSI-X interrupt mode */
8564                         retval = lpfc_sli_enable_msix(phba);
8565                         if (!retval) {
8566                                 /* Indicate initialization to MSI-X mode */
8567                                 phba->intr_type = MSIX;
8568                                 intr_mode = 2;
8569                         }
8570                 }
8571         }
8572
8573         /* Fallback to MSI if MSI-X initialization failed */
8574         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8575                 retval = lpfc_sli_enable_msi(phba);
8576                 if (!retval) {
8577                         /* Indicate initialization to MSI mode */
8578                         phba->intr_type = MSI;
8579                         intr_mode = 1;
8580                 }
8581         }
8582
8583         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8584         if (phba->intr_type == NONE) {
8585                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8586                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8587                 if (!retval) {
8588                         /* Indicate initialization to INTx mode */
8589                         phba->intr_type = INTx;
8590                         intr_mode = 0;
8591                 }
8592         }
8593         return intr_mode;
8594 }
8595
8596 /**
8597  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8598  * @phba: pointer to lpfc hba data structure.
8599  *
8600  * This routine is invoked to disable device interrupt and disassociate the
8601  * driver's interrupt handler(s) from interrupt vector(s) to device with
8602  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8603  * release the interrupt vector(s) for the message signaled interrupt.
8604  **/
8605 static void
8606 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8607 {
8608         /* Disable the currently initialized interrupt mode */
8609         if (phba->intr_type == MSIX)
8610                 lpfc_sli_disable_msix(phba);
8611         else if (phba->intr_type == MSI)
8612                 lpfc_sli_disable_msi(phba);
8613         else if (phba->intr_type == INTx)
8614                 free_irq(phba->pcidev->irq, phba);
8615
8616         /* Reset interrupt management states */
8617         phba->intr_type = NONE;
8618         phba->sli.slistat.sli_intr = 0;
8619
8620         return;
8621 }
8622
8623 /**
8624  * lpfc_find_next_cpu - Find next available CPU that matches the phys_id
8625  * @phba: pointer to lpfc hba data structure.
8626  *
8627  * Find next available CPU to use for IRQ to CPU affinity.
8628  */
8629 static int
8630 lpfc_find_next_cpu(struct lpfc_hba *phba, uint32_t phys_id)
8631 {
8632         struct lpfc_vector_map_info *cpup;
8633         int cpu;
8634
8635         cpup = phba->sli4_hba.cpu_map;
8636         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8637                 /* CPU must be online */
8638                 if (cpu_online(cpu)) {
8639                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8640                             (lpfc_used_cpu[cpu] == LPFC_VECTOR_MAP_EMPTY) &&
8641                             (cpup->phys_id == phys_id)) {
8642                                 return cpu;
8643                         }
8644                 }
8645                 cpup++;
8646         }
8647
8648         /*
8649          * If we get here, we have used ALL CPUs for the specific
8650          * phys_id. Now we need to clear out lpfc_used_cpu and start
8651          * reusing CPUs.
8652          */
8653
8654         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8655                 if (lpfc_used_cpu[cpu] == phys_id)
8656                         lpfc_used_cpu[cpu] = LPFC_VECTOR_MAP_EMPTY;
8657         }
8658
8659         cpup = phba->sli4_hba.cpu_map;
8660         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8661                 /* CPU must be online */
8662                 if (cpu_online(cpu)) {
8663                         if ((cpup->irq == LPFC_VECTOR_MAP_EMPTY) &&
8664                             (cpup->phys_id == phys_id)) {
8665                                 return cpu;
8666                         }
8667                 }
8668                 cpup++;
8669         }
8670         return LPFC_VECTOR_MAP_EMPTY;
8671 }
8672
8673 /**
8674  * lpfc_sli4_set_affinity - Set affinity for HBA IRQ vectors
8675  * @phba:       pointer to lpfc hba data structure.
8676  * @vectors:    number of HBA vectors
8677  *
8678  * Affinitize MSIX IRQ vectors to CPUs. Try to equally spread vector
8679  * affinization across multple physical CPUs (numa nodes).
8680  * In addition, this routine will assign an IO channel for each CPU
8681  * to use when issuing I/Os.
8682  */
8683 static int
8684 lpfc_sli4_set_affinity(struct lpfc_hba *phba, int vectors)
8685 {
8686         int i, idx, saved_chann, used_chann, cpu, phys_id;
8687         int max_phys_id, min_phys_id;
8688         int num_io_channel, first_cpu, chan;
8689         struct lpfc_vector_map_info *cpup;
8690 #ifdef CONFIG_X86
8691         struct cpuinfo_x86 *cpuinfo;
8692 #endif
8693         uint8_t chann[LPFC_FCP_IO_CHAN_MAX+1];
8694
8695         /* If there is no mapping, just return */
8696         if (!phba->cfg_fcp_cpu_map)
8697                 return 1;
8698
8699         /* Init cpu_map array */
8700         memset(phba->sli4_hba.cpu_map, 0xff,
8701                (sizeof(struct lpfc_vector_map_info) *
8702                 phba->sli4_hba.num_present_cpu));
8703
8704         max_phys_id = 0;
8705         min_phys_id = 0xff;
8706         phys_id = 0;
8707         num_io_channel = 0;
8708         first_cpu = LPFC_VECTOR_MAP_EMPTY;
8709
8710         /* Update CPU map with physical id and core id of each CPU */
8711         cpup = phba->sli4_hba.cpu_map;
8712         for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) {
8713 #ifdef CONFIG_X86
8714                 cpuinfo = &cpu_data(cpu);
8715                 cpup->phys_id = cpuinfo->phys_proc_id;
8716                 cpup->core_id = cpuinfo->cpu_core_id;
8717 #else
8718                 /* No distinction between CPUs for other platforms */
8719                 cpup->phys_id = 0;
8720                 cpup->core_id = 0;
8721 #endif
8722
8723                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8724                                 "3328 CPU physid %d coreid %d\n",
8725                                 cpup->phys_id, cpup->core_id);
8726
8727                 if (cpup->phys_id > max_phys_id)
8728                         max_phys_id = cpup->phys_id;
8729                 if (cpup->phys_id < min_phys_id)
8730                         min_phys_id = cpup->phys_id;
8731                 cpup++;
8732         }
8733
8734         phys_id = min_phys_id;
8735         /* Now associate the HBA vectors with specific CPUs */
8736         for (idx = 0; idx < vectors; idx++) {
8737                 cpup = phba->sli4_hba.cpu_map;
8738                 cpu = lpfc_find_next_cpu(phba, phys_id);
8739                 if (cpu == LPFC_VECTOR_MAP_EMPTY) {
8740
8741                         /* Try for all phys_id's */
8742                         for (i = 1; i < max_phys_id; i++) {
8743                                 phys_id++;
8744                                 if (phys_id > max_phys_id)
8745                                         phys_id = min_phys_id;
8746                                 cpu = lpfc_find_next_cpu(phba, phys_id);
8747                                 if (cpu == LPFC_VECTOR_MAP_EMPTY)
8748                                         continue;
8749                                 goto found;
8750                         }
8751
8752                         /* Use round robin for scheduling */
8753                         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_ROUND_ROBIN;
8754                         chan = 0;
8755                         cpup = phba->sli4_hba.cpu_map;
8756                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
8757                                 cpup->channel_id = chan;
8758                                 cpup++;
8759                                 chan++;
8760                                 if (chan >= phba->cfg_fcp_io_channel)
8761                                         chan = 0;
8762                         }
8763
8764                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8765                                         "3329 Cannot set affinity:"
8766                                         "Error mapping vector %d (%d)\n",
8767                                         idx, vectors);
8768                         return 0;
8769                 }
8770 found:
8771                 cpup += cpu;
8772                 if (phba->cfg_fcp_cpu_map == LPFC_DRIVER_CPU_MAP)
8773                         lpfc_used_cpu[cpu] = phys_id;
8774
8775                 /* Associate vector with selected CPU */
8776                 cpup->irq = phba->sli4_hba.msix_entries[idx].vector;
8777
8778                 /* Associate IO channel with selected CPU */
8779                 cpup->channel_id = idx;
8780                 num_io_channel++;
8781
8782                 if (first_cpu == LPFC_VECTOR_MAP_EMPTY)
8783                         first_cpu = cpu;
8784
8785                 /* Now affinitize to the selected CPU */
8786                 i = irq_set_affinity_hint(phba->sli4_hba.msix_entries[idx].
8787                                           vector, get_cpu_mask(cpu));
8788
8789                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8790                                 "3330 Set Affinity: CPU %d channel %d "
8791                                 "irq %d (%x)\n",
8792                                 cpu, cpup->channel_id,
8793                                 phba->sli4_hba.msix_entries[idx].vector, i);
8794
8795                 /* Spread vector mapping across multple physical CPU nodes */
8796                 phys_id++;
8797                 if (phys_id > max_phys_id)
8798                         phys_id = min_phys_id;
8799         }
8800
8801         /*
8802          * Finally fill in the IO channel for any remaining CPUs.
8803          * At this point, all IO channels have been assigned to a specific
8804          * MSIx vector, mapped to a specific CPU.
8805          * Base the remaining IO channel assigned, to IO channels already
8806          * assigned to other CPUs on the same phys_id.
8807          */
8808         for (i = min_phys_id; i <= max_phys_id; i++) {
8809                 /*
8810                  * If there are no io channels already mapped to
8811                  * this phys_id, just round robin thru the io_channels.
8812                  * Setup chann[] for round robin.
8813                  */
8814                 for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++)
8815                         chann[idx] = idx;
8816
8817                 saved_chann = 0;
8818                 used_chann = 0;
8819
8820                 /*
8821                  * First build a list of IO channels already assigned
8822                  * to this phys_id before reassigning the same IO
8823                  * channels to the remaining CPUs.
8824                  */
8825                 cpup = phba->sli4_hba.cpu_map;
8826                 cpu = first_cpu;
8827                 cpup += cpu;
8828                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu;
8829                      idx++) {
8830                         if (cpup->phys_id == i) {
8831                                 /*
8832                                  * Save any IO channels that are
8833                                  * already mapped to this phys_id.
8834                                  */
8835                                 if (cpup->irq != LPFC_VECTOR_MAP_EMPTY) {
8836                                         chann[saved_chann] =
8837                                                 cpup->channel_id;
8838                                         saved_chann++;
8839                                         goto out;
8840                                 }
8841
8842                                 /* See if we are using round-robin */
8843                                 if (saved_chann == 0)
8844                                         saved_chann =
8845                                                 phba->cfg_fcp_io_channel;
8846
8847                                 /* Associate next IO channel with CPU */
8848                                 cpup->channel_id = chann[used_chann];
8849                                 num_io_channel++;
8850                                 used_chann++;
8851                                 if (used_chann == saved_chann)
8852                                         used_chann = 0;
8853
8854                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8855                                                 "3331 Set IO_CHANN "
8856                                                 "CPU %d channel %d\n",
8857                                                 idx, cpup->channel_id);
8858                         }
8859 out:
8860                         cpu++;
8861                         if (cpu >= phba->sli4_hba.num_present_cpu) {
8862                                 cpup = phba->sli4_hba.cpu_map;
8863                                 cpu = 0;
8864                         } else {
8865                                 cpup++;
8866                         }
8867                 }
8868         }
8869
8870         if (phba->sli4_hba.num_online_cpu != phba->sli4_hba.num_present_cpu) {
8871                 cpup = phba->sli4_hba.cpu_map;
8872                 for (idx = 0; idx < phba->sli4_hba.num_present_cpu; idx++) {
8873                         if (cpup->channel_id == LPFC_VECTOR_MAP_EMPTY) {
8874                                 cpup->channel_id = 0;
8875                                 num_io_channel++;
8876
8877                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8878                                                 "3332 Assign IO_CHANN "
8879                                                 "CPU %d channel %d\n",
8880                                                 idx, cpup->channel_id);
8881                         }
8882                         cpup++;
8883                 }
8884         }
8885
8886         /* Sanity check */
8887         if (num_io_channel != phba->sli4_hba.num_present_cpu)
8888                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8889                                 "3333 Set affinity mismatch:"
8890                                 "%d chann != %d cpus: %d vectors\n",
8891                                 num_io_channel, phba->sli4_hba.num_present_cpu,
8892                                 vectors);
8893
8894         /* Enable using cpu affinity for scheduling */
8895         phba->cfg_fcp_io_sched = LPFC_FCP_SCHED_BY_CPU;
8896         return 1;
8897 }
8898
8899
8900 /**
8901  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8902  * @phba: pointer to lpfc hba data structure.
8903  *
8904  * This routine is invoked to enable the MSI-X interrupt vectors to device
8905  * with SLI-4 interface spec. The kernel function pci_enable_msix_range()
8906  * is called to enable the MSI-X vectors. The device driver is responsible
8907  * for calling the individual request_irq() to register each MSI-X vector
8908  * with a interrupt handler, which is done in this function. Note that
8909  * later when device is unloading, the driver should always call free_irq()
8910  * on all MSI-X vectors it has done request_irq() on before calling
8911  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
8912  * will be left with MSI-X enabled and leaks its vectors.
8913  *
8914  * Return codes
8915  * 0 - successful
8916  * other values - error
8917  **/
8918 static int
8919 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8920 {
8921         int vectors, rc, index;
8922
8923         /* Set up MSI-X multi-message vectors */
8924         for (index = 0; index < phba->cfg_fcp_io_channel; index++)
8925                 phba->sli4_hba.msix_entries[index].entry = index;
8926
8927         /* Configure MSI-X capability structure */
8928         vectors = phba->cfg_fcp_io_channel;
8929         if (phba->cfg_fof) {
8930                 phba->sli4_hba.msix_entries[index].entry = index;
8931                 vectors++;
8932         }
8933         rc = pci_enable_msix_range(phba->pcidev, phba->sli4_hba.msix_entries,
8934                                    2, vectors);
8935         if (rc < 0) {
8936                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8937                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
8938                 goto vec_fail_out;
8939         }
8940         vectors = rc;
8941
8942         /* Log MSI-X vector assignment */
8943         for (index = 0; index < vectors; index++)
8944                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8945                                 "0489 MSI-X entry[%d]: vector=x%x "
8946                                 "message=%d\n", index,
8947                                 phba->sli4_hba.msix_entries[index].vector,
8948                                 phba->sli4_hba.msix_entries[index].entry);
8949
8950         /* Assign MSI-X vectors to interrupt handlers */
8951         for (index = 0; index < vectors; index++) {
8952                 memset(&phba->sli4_hba.handler_name[index], 0, 16);
8953                 snprintf((char *)&phba->sli4_hba.handler_name[index],
8954                          LPFC_SLI4_HANDLER_NAME_SZ,
8955                          LPFC_DRIVER_HANDLER_NAME"%d", index);
8956
8957                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8958                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8959                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
8960                 if (phba->cfg_fof && (index == (vectors - 1)))
8961                         rc = request_irq(
8962                                 phba->sli4_hba.msix_entries[index].vector,
8963                                  &lpfc_sli4_fof_intr_handler, 0,
8964                                  (char *)&phba->sli4_hba.handler_name[index],
8965                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8966                 else
8967                         rc = request_irq(
8968                                 phba->sli4_hba.msix_entries[index].vector,
8969                                  &lpfc_sli4_hba_intr_handler, 0,
8970                                  (char *)&phba->sli4_hba.handler_name[index],
8971                                  &phba->sli4_hba.fcp_eq_hdl[index]);
8972                 if (rc) {
8973                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8974                                         "0486 MSI-X fast-path (%d) "
8975                                         "request_irq failed (%d)\n", index, rc);
8976                         goto cfg_fail_out;
8977                 }
8978         }
8979
8980         if (phba->cfg_fof)
8981                 vectors--;
8982
8983         if (vectors != phba->cfg_fcp_io_channel) {
8984                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8985                                 "3238 Reducing IO channels to match number of "
8986                                 "MSI-X vectors, requested %d got %d\n",
8987                                 phba->cfg_fcp_io_channel, vectors);
8988                 phba->cfg_fcp_io_channel = vectors;
8989         }
8990
8991         if (!shost_use_blk_mq(lpfc_shost_from_vport(phba->pport)))
8992                 lpfc_sli4_set_affinity(phba, vectors);
8993         return rc;
8994
8995 cfg_fail_out:
8996         /* free the irq already requested */
8997         for (--index; index >= 0; index--) {
8998                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
8999                                           vector, NULL);
9000                 free_irq(phba->sli4_hba.msix_entries[index].vector,
9001                          &phba->sli4_hba.fcp_eq_hdl[index]);
9002         }
9003
9004         /* Unconfigure MSI-X capability structure */
9005         pci_disable_msix(phba->pcidev);
9006
9007 vec_fail_out:
9008         return rc;
9009 }
9010
9011 /**
9012  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
9013  * @phba: pointer to lpfc hba data structure.
9014  *
9015  * This routine is invoked to release the MSI-X vectors and then disable the
9016  * MSI-X interrupt mode to device with SLI-4 interface spec.
9017  **/
9018 static void
9019 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
9020 {
9021         int index;
9022
9023         /* Free up MSI-X multi-message vectors */
9024         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9025                 irq_set_affinity_hint(phba->sli4_hba.msix_entries[index].
9026                                           vector, NULL);
9027                 free_irq(phba->sli4_hba.msix_entries[index].vector,
9028                          &phba->sli4_hba.fcp_eq_hdl[index]);
9029         }
9030         if (phba->cfg_fof) {
9031                 free_irq(phba->sli4_hba.msix_entries[index].vector,
9032                          &phba->sli4_hba.fcp_eq_hdl[index]);
9033         }
9034         /* Disable MSI-X */
9035         pci_disable_msix(phba->pcidev);
9036
9037         return;
9038 }
9039
9040 /**
9041  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
9042  * @phba: pointer to lpfc hba data structure.
9043  *
9044  * This routine is invoked to enable the MSI interrupt mode to device with
9045  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
9046  * to enable the MSI vector. The device driver is responsible for calling
9047  * the request_irq() to register MSI vector with a interrupt the handler,
9048  * which is done in this function.
9049  *
9050  * Return codes
9051  *      0 - successful
9052  *      other values - error
9053  **/
9054 static int
9055 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
9056 {
9057         int rc, index;
9058
9059         rc = pci_enable_msi(phba->pcidev);
9060         if (!rc)
9061                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9062                                 "0487 PCI enable MSI mode success.\n");
9063         else {
9064                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9065                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
9066                 return rc;
9067         }
9068
9069         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9070                          0, LPFC_DRIVER_NAME, phba);
9071         if (rc) {
9072                 pci_disable_msi(phba->pcidev);
9073                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9074                                 "0490 MSI request_irq failed (%d)\n", rc);
9075                 return rc;
9076         }
9077
9078         for (index = 0; index < phba->cfg_fcp_io_channel; index++) {
9079                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9080                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9081         }
9082
9083         if (phba->cfg_fof) {
9084                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9085                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9086         }
9087         return 0;
9088 }
9089
9090 /**
9091  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
9092  * @phba: pointer to lpfc hba data structure.
9093  *
9094  * This routine is invoked to disable the MSI interrupt mode to device with
9095  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
9096  * done request_irq() on before calling pci_disable_msi(). Failure to do so
9097  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
9098  * its vector.
9099  **/
9100 static void
9101 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
9102 {
9103         free_irq(phba->pcidev->irq, phba);
9104         pci_disable_msi(phba->pcidev);
9105         return;
9106 }
9107
9108 /**
9109  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
9110  * @phba: pointer to lpfc hba data structure.
9111  *
9112  * This routine is invoked to enable device interrupt and associate driver's
9113  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
9114  * interface spec. Depends on the interrupt mode configured to the driver,
9115  * the driver will try to fallback from the configured interrupt mode to an
9116  * interrupt mode which is supported by the platform, kernel, and device in
9117  * the order of:
9118  * MSI-X -> MSI -> IRQ.
9119  *
9120  * Return codes
9121  *      0 - successful
9122  *      other values - error
9123  **/
9124 static uint32_t
9125 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
9126 {
9127         uint32_t intr_mode = LPFC_INTR_ERROR;
9128         int retval, index;
9129
9130         if (cfg_mode == 2) {
9131                 /* Preparation before conf_msi mbox cmd */
9132                 retval = 0;
9133                 if (!retval) {
9134                         /* Now, try to enable MSI-X interrupt mode */
9135                         retval = lpfc_sli4_enable_msix(phba);
9136                         if (!retval) {
9137                                 /* Indicate initialization to MSI-X mode */
9138                                 phba->intr_type = MSIX;
9139                                 intr_mode = 2;
9140                         }
9141                 }
9142         }
9143
9144         /* Fallback to MSI if MSI-X initialization failed */
9145         if (cfg_mode >= 1 && phba->intr_type == NONE) {
9146                 retval = lpfc_sli4_enable_msi(phba);
9147                 if (!retval) {
9148                         /* Indicate initialization to MSI mode */
9149                         phba->intr_type = MSI;
9150                         intr_mode = 1;
9151                 }
9152         }
9153
9154         /* Fallback to INTx if both MSI-X/MSI initalization failed */
9155         if (phba->intr_type == NONE) {
9156                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
9157                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
9158                 if (!retval) {
9159                         /* Indicate initialization to INTx mode */
9160                         phba->intr_type = INTx;
9161                         intr_mode = 0;
9162                         for (index = 0; index < phba->cfg_fcp_io_channel;
9163                              index++) {
9164                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9165                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9166                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9167                                         fcp_eq_in_use, 1);
9168                         }
9169                         if (phba->cfg_fof) {
9170                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
9171                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
9172                                 atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
9173                                         fcp_eq_in_use, 1);
9174                         }
9175                 }
9176         }
9177         return intr_mode;
9178 }
9179
9180 /**
9181  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
9182  * @phba: pointer to lpfc hba data structure.
9183  *
9184  * This routine is invoked to disable device interrupt and disassociate
9185  * the driver's interrupt handler(s) from interrupt vector(s) to device
9186  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
9187  * will release the interrupt vector(s) for the message signaled interrupt.
9188  **/
9189 static void
9190 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
9191 {
9192         /* Disable the currently initialized interrupt mode */
9193         if (phba->intr_type == MSIX)
9194                 lpfc_sli4_disable_msix(phba);
9195         else if (phba->intr_type == MSI)
9196                 lpfc_sli4_disable_msi(phba);
9197         else if (phba->intr_type == INTx)
9198                 free_irq(phba->pcidev->irq, phba);
9199
9200         /* Reset interrupt management states */
9201         phba->intr_type = NONE;
9202         phba->sli.slistat.sli_intr = 0;
9203
9204         return;
9205 }
9206
9207 /**
9208  * lpfc_unset_hba - Unset SLI3 hba device initialization
9209  * @phba: pointer to lpfc hba data structure.
9210  *
9211  * This routine is invoked to unset the HBA device initialization steps to
9212  * a device with SLI-3 interface spec.
9213  **/
9214 static void
9215 lpfc_unset_hba(struct lpfc_hba *phba)
9216 {
9217         struct lpfc_vport *vport = phba->pport;
9218         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
9219
9220         spin_lock_irq(shost->host_lock);
9221         vport->load_flag |= FC_UNLOADING;
9222         spin_unlock_irq(shost->host_lock);
9223
9224         kfree(phba->vpi_bmask);
9225         kfree(phba->vpi_ids);
9226
9227         lpfc_stop_hba_timers(phba);
9228
9229         phba->pport->work_port_events = 0;
9230
9231         lpfc_sli_hba_down(phba);
9232
9233         lpfc_sli_brdrestart(phba);
9234
9235         lpfc_sli_disable_intr(phba);
9236
9237         return;
9238 }
9239
9240 /**
9241  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
9242  * @phba: Pointer to HBA context object.
9243  *
9244  * This function is called in the SLI4 code path to wait for completion
9245  * of device's XRIs exchange busy. It will check the XRI exchange busy
9246  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
9247  * that, it will check the XRI exchange busy on outstanding FCP and ELS
9248  * I/Os every 30 seconds, log error message, and wait forever. Only when
9249  * all XRI exchange busy complete, the driver unload shall proceed with
9250  * invoking the function reset ioctl mailbox command to the CNA and the
9251  * the rest of the driver unload resource release.
9252  **/
9253 static void
9254 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
9255 {
9256         int wait_time = 0;
9257         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9258         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9259
9260         while (!fcp_xri_cmpl || !els_xri_cmpl) {
9261                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
9262                         if (!fcp_xri_cmpl)
9263                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9264                                                 "2877 FCP XRI exchange busy "
9265                                                 "wait time: %d seconds.\n",
9266                                                 wait_time/1000);
9267                         if (!els_xri_cmpl)
9268                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9269                                                 "2878 ELS XRI exchange busy "
9270                                                 "wait time: %d seconds.\n",
9271                                                 wait_time/1000);
9272                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
9273                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
9274                 } else {
9275                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
9276                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
9277                 }
9278                 fcp_xri_cmpl =
9279                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
9280                 els_xri_cmpl =
9281                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
9282         }
9283 }
9284
9285 /**
9286  * lpfc_sli4_hba_unset - Unset the fcoe hba
9287  * @phba: Pointer to HBA context object.
9288  *
9289  * This function is called in the SLI4 code path to reset the HBA's FCoE
9290  * function. The caller is not required to hold any lock. This routine
9291  * issues PCI function reset mailbox command to reset the FCoE function.
9292  * At the end of the function, it calls lpfc_hba_down_post function to
9293  * free any pending commands.
9294  **/
9295 static void
9296 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
9297 {
9298         int wait_cnt = 0;
9299         LPFC_MBOXQ_t *mboxq;
9300         struct pci_dev *pdev = phba->pcidev;
9301
9302         lpfc_stop_hba_timers(phba);
9303         phba->sli4_hba.intr_enable = 0;
9304
9305         /*
9306          * Gracefully wait out the potential current outstanding asynchronous
9307          * mailbox command.
9308          */
9309
9310         /* First, block any pending async mailbox command from posted */
9311         spin_lock_irq(&phba->hbalock);
9312         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
9313         spin_unlock_irq(&phba->hbalock);
9314         /* Now, trying to wait it out if we can */
9315         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9316                 msleep(10);
9317                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
9318                         break;
9319         }
9320         /* Forcefully release the outstanding mailbox command if timed out */
9321         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
9322                 spin_lock_irq(&phba->hbalock);
9323                 mboxq = phba->sli.mbox_active;
9324                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
9325                 __lpfc_mbox_cmpl_put(phba, mboxq);
9326                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9327                 phba->sli.mbox_active = NULL;
9328                 spin_unlock_irq(&phba->hbalock);
9329         }
9330
9331         /* Abort all iocbs associated with the hba */
9332         lpfc_sli_hba_iocb_abort(phba);
9333
9334         /* Wait for completion of device XRI exchange busy */
9335         lpfc_sli4_xri_exchange_busy_wait(phba);
9336
9337         /* Disable PCI subsystem interrupt */
9338         lpfc_sli4_disable_intr(phba);
9339
9340         /* Disable SR-IOV if enabled */
9341         if (phba->cfg_sriov_nr_virtfn)
9342                 pci_disable_sriov(pdev);
9343
9344         /* Stop kthread signal shall trigger work_done one more time */
9345         kthread_stop(phba->worker_thread);
9346
9347         /* Reset SLI4 HBA FCoE function */
9348         lpfc_pci_function_reset(phba);
9349         lpfc_sli4_queue_destroy(phba);
9350
9351         /* Stop the SLI4 device port */
9352         phba->pport->work_port_events = 0;
9353 }
9354
9355  /**
9356  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
9357  * @phba: Pointer to HBA context object.
9358  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9359  *
9360  * This function is called in the SLI4 code path to read the port's
9361  * sli4 capabilities.
9362  *
9363  * This function may be be called from any context that can block-wait
9364  * for the completion.  The expectation is that this routine is called
9365  * typically from probe_one or from the online routine.
9366  **/
9367 int
9368 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9369 {
9370         int rc;
9371         struct lpfc_mqe *mqe;
9372         struct lpfc_pc_sli4_params *sli4_params;
9373         uint32_t mbox_tmo;
9374
9375         rc = 0;
9376         mqe = &mboxq->u.mqe;
9377
9378         /* Read the port's SLI4 Parameters port capabilities */
9379         lpfc_pc_sli4_params(mboxq);
9380         if (!phba->sli4_hba.intr_enable)
9381                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9382         else {
9383                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9384                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9385         }
9386
9387         if (unlikely(rc))
9388                 return 1;
9389
9390         sli4_params = &phba->sli4_hba.pc_sli4_params;
9391         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
9392         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
9393         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
9394         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
9395                                              &mqe->un.sli4_params);
9396         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
9397                                              &mqe->un.sli4_params);
9398         sli4_params->proto_types = mqe->un.sli4_params.word3;
9399         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
9400         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
9401         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
9402         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
9403         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
9404         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
9405         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
9406         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
9407         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
9408         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
9409         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
9410         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
9411         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
9412         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
9413         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
9414         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
9415         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
9416         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
9417         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
9418         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
9419
9420         /* Make sure that sge_supp_len can be handled by the driver */
9421         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9422                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9423
9424         return rc;
9425 }
9426
9427 /**
9428  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
9429  * @phba: Pointer to HBA context object.
9430  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
9431  *
9432  * This function is called in the SLI4 code path to read the port's
9433  * sli4 capabilities.
9434  *
9435  * This function may be be called from any context that can block-wait
9436  * for the completion.  The expectation is that this routine is called
9437  * typically from probe_one or from the online routine.
9438  **/
9439 int
9440 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
9441 {
9442         int rc;
9443         struct lpfc_mqe *mqe = &mboxq->u.mqe;
9444         struct lpfc_pc_sli4_params *sli4_params;
9445         uint32_t mbox_tmo;
9446         int length;
9447         struct lpfc_sli4_parameters *mbx_sli4_parameters;
9448
9449         /*
9450          * By default, the driver assumes the SLI4 port requires RPI
9451          * header postings.  The SLI4_PARAM response will correct this
9452          * assumption.
9453          */
9454         phba->sli4_hba.rpi_hdrs_in_use = 1;
9455
9456         /* Read the port's SLI4 Config Parameters */
9457         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
9458                   sizeof(struct lpfc_sli4_cfg_mhdr));
9459         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
9460                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
9461                          length, LPFC_SLI4_MBX_EMBED);
9462         if (!phba->sli4_hba.intr_enable)
9463                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
9464         else {
9465                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
9466                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
9467         }
9468         if (unlikely(rc))
9469                 return rc;
9470         sli4_params = &phba->sli4_hba.pc_sli4_params;
9471         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
9472         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
9473         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
9474         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
9475         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
9476                                              mbx_sli4_parameters);
9477         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
9478                                              mbx_sli4_parameters);
9479         if (bf_get(cfg_phwq, mbx_sli4_parameters))
9480                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
9481         else
9482                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
9483         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
9484         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
9485         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
9486         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
9487         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
9488         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
9489         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
9490         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
9491         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
9492                                             mbx_sli4_parameters);
9493         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
9494                                            mbx_sli4_parameters);
9495         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
9496         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
9497
9498         /* Make sure that sge_supp_len can be handled by the driver */
9499         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
9500                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
9501
9502         return 0;
9503 }
9504
9505 /**
9506  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
9507  * @pdev: pointer to PCI device
9508  * @pid: pointer to PCI device identifier
9509  *
9510  * This routine is to be called to attach a device with SLI-3 interface spec
9511  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9512  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9513  * information of the device and driver to see if the driver state that it can
9514  * support this kind of device. If the match is successful, the driver core
9515  * invokes this routine. If this routine determines it can claim the HBA, it
9516  * does all the initialization that it needs to do to handle the HBA properly.
9517  *
9518  * Return code
9519  *      0 - driver can claim the device
9520  *      negative value - driver can not claim the device
9521  **/
9522 static int
9523 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
9524 {
9525         struct lpfc_hba   *phba;
9526         struct lpfc_vport *vport = NULL;
9527         struct Scsi_Host  *shost = NULL;
9528         int error;
9529         uint32_t cfg_mode, intr_mode;
9530
9531         /* Allocate memory for HBA structure */
9532         phba = lpfc_hba_alloc(pdev);
9533         if (!phba)
9534                 return -ENOMEM;
9535
9536         /* Perform generic PCI device enabling operation */
9537         error = lpfc_enable_pci_dev(phba);
9538         if (error)
9539                 goto out_free_phba;
9540
9541         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
9542         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
9543         if (error)
9544                 goto out_disable_pci_dev;
9545
9546         /* Set up SLI-3 specific device PCI memory space */
9547         error = lpfc_sli_pci_mem_setup(phba);
9548         if (error) {
9549                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9550                                 "1402 Failed to set up pci memory space.\n");
9551                 goto out_disable_pci_dev;
9552         }
9553
9554         /* Set up phase-1 common device driver resources */
9555         error = lpfc_setup_driver_resource_phase1(phba);
9556         if (error) {
9557                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9558                                 "1403 Failed to set up driver resource.\n");
9559                 goto out_unset_pci_mem_s3;
9560         }
9561
9562         /* Set up SLI-3 specific device driver resources */
9563         error = lpfc_sli_driver_resource_setup(phba);
9564         if (error) {
9565                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9566                                 "1404 Failed to set up driver resource.\n");
9567                 goto out_unset_pci_mem_s3;
9568         }
9569
9570         /* Initialize and populate the iocb list per host */
9571         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
9572         if (error) {
9573                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9574                                 "1405 Failed to initialize iocb list.\n");
9575                 goto out_unset_driver_resource_s3;
9576         }
9577
9578         /* Set up common device driver resources */
9579         error = lpfc_setup_driver_resource_phase2(phba);
9580         if (error) {
9581                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9582                                 "1406 Failed to set up driver resource.\n");
9583                 goto out_free_iocb_list;
9584         }
9585
9586         /* Get the default values for Model Name and Description */
9587         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9588
9589         /* Create SCSI host to the physical port */
9590         error = lpfc_create_shost(phba);
9591         if (error) {
9592                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9593                                 "1407 Failed to create scsi host.\n");
9594                 goto out_unset_driver_resource;
9595         }
9596
9597         /* Configure sysfs attributes */
9598         vport = phba->pport;
9599         error = lpfc_alloc_sysfs_attr(vport);
9600         if (error) {
9601                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9602                                 "1476 Failed to allocate sysfs attr\n");
9603                 goto out_destroy_shost;
9604         }
9605
9606         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9607         /* Now, trying to enable interrupt and bring up the device */
9608         cfg_mode = phba->cfg_use_msi;
9609         while (true) {
9610                 /* Put device to a known state before enabling interrupt */
9611                 lpfc_stop_port(phba);
9612                 /* Configure and enable interrupt */
9613                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
9614                 if (intr_mode == LPFC_INTR_ERROR) {
9615                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9616                                         "0431 Failed to enable interrupt.\n");
9617                         error = -ENODEV;
9618                         goto out_free_sysfs_attr;
9619                 }
9620                 /* SLI-3 HBA setup */
9621                 if (lpfc_sli_hba_setup(phba)) {
9622                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9623                                         "1477 Failed to set up hba\n");
9624                         error = -ENODEV;
9625                         goto out_remove_device;
9626                 }
9627
9628                 /* Wait 50ms for the interrupts of previous mailbox commands */
9629                 msleep(50);
9630                 /* Check active interrupts on message signaled interrupts */
9631                 if (intr_mode == 0 ||
9632                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
9633                         /* Log the current active interrupt mode */
9634                         phba->intr_mode = intr_mode;
9635                         lpfc_log_intr_mode(phba, intr_mode);
9636                         break;
9637                 } else {
9638                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9639                                         "0447 Configure interrupt mode (%d) "
9640                                         "failed active interrupt test.\n",
9641                                         intr_mode);
9642                         /* Disable the current interrupt mode */
9643                         lpfc_sli_disable_intr(phba);
9644                         /* Try next level of interrupt mode */
9645                         cfg_mode = --intr_mode;
9646                 }
9647         }
9648
9649         /* Perform post initialization setup */
9650         lpfc_post_init_setup(phba);
9651
9652         /* Check if there are static vports to be created. */
9653         lpfc_create_static_vport(phba);
9654
9655         return 0;
9656
9657 out_remove_device:
9658         lpfc_unset_hba(phba);
9659 out_free_sysfs_attr:
9660         lpfc_free_sysfs_attr(vport);
9661 out_destroy_shost:
9662         lpfc_destroy_shost(phba);
9663 out_unset_driver_resource:
9664         lpfc_unset_driver_resource_phase2(phba);
9665 out_free_iocb_list:
9666         lpfc_free_iocb_list(phba);
9667 out_unset_driver_resource_s3:
9668         lpfc_sli_driver_resource_unset(phba);
9669 out_unset_pci_mem_s3:
9670         lpfc_sli_pci_mem_unset(phba);
9671 out_disable_pci_dev:
9672         lpfc_disable_pci_dev(phba);
9673         if (shost)
9674                 scsi_host_put(shost);
9675 out_free_phba:
9676         lpfc_hba_free(phba);
9677         return error;
9678 }
9679
9680 /**
9681  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
9682  * @pdev: pointer to PCI device
9683  *
9684  * This routine is to be called to disattach a device with SLI-3 interface
9685  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
9686  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9687  * device to be removed from the PCI subsystem properly.
9688  **/
9689 static void
9690 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
9691 {
9692         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
9693         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9694         struct lpfc_vport **vports;
9695         struct lpfc_hba   *phba = vport->phba;
9696         int i;
9697         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
9698
9699         spin_lock_irq(&phba->hbalock);
9700         vport->load_flag |= FC_UNLOADING;
9701         spin_unlock_irq(&phba->hbalock);
9702
9703         lpfc_free_sysfs_attr(vport);
9704
9705         /* Release all the vports against this physical port */
9706         vports = lpfc_create_vport_work_array(phba);
9707         if (vports != NULL)
9708                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9709                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9710                                 continue;
9711                         fc_vport_terminate(vports[i]->fc_vport);
9712                 }
9713         lpfc_destroy_vport_work_array(phba, vports);
9714
9715         /* Remove FC host and then SCSI host with the physical port */
9716         fc_remove_host(shost);
9717         scsi_remove_host(shost);
9718         lpfc_cleanup(vport);
9719
9720         /*
9721          * Bring down the SLI Layer. This step disable all interrupts,
9722          * clears the rings, discards all mailbox commands, and resets
9723          * the HBA.
9724          */
9725
9726         /* HBA interrupt will be disabled after this call */
9727         lpfc_sli_hba_down(phba);
9728         /* Stop kthread signal shall trigger work_done one more time */
9729         kthread_stop(phba->worker_thread);
9730         /* Final cleanup of txcmplq and reset the HBA */
9731         lpfc_sli_brdrestart(phba);
9732
9733         kfree(phba->vpi_bmask);
9734         kfree(phba->vpi_ids);
9735
9736         lpfc_stop_hba_timers(phba);
9737         spin_lock_irq(&phba->hbalock);
9738         list_del_init(&vport->listentry);
9739         spin_unlock_irq(&phba->hbalock);
9740
9741         lpfc_debugfs_terminate(vport);
9742
9743         /* Disable SR-IOV if enabled */
9744         if (phba->cfg_sriov_nr_virtfn)
9745                 pci_disable_sriov(pdev);
9746
9747         /* Disable interrupt */
9748         lpfc_sli_disable_intr(phba);
9749
9750         scsi_host_put(shost);
9751
9752         /*
9753          * Call scsi_free before mem_free since scsi bufs are released to their
9754          * corresponding pools here.
9755          */
9756         lpfc_scsi_free(phba);
9757         lpfc_mem_free_all(phba);
9758
9759         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9760                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9761
9762         /* Free resources associated with SLI2 interface */
9763         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9764                           phba->slim2p.virt, phba->slim2p.phys);
9765
9766         /* unmap adapter SLIM and Control Registers */
9767         iounmap(phba->ctrl_regs_memmap_p);
9768         iounmap(phba->slim_memmap_p);
9769
9770         lpfc_hba_free(phba);
9771
9772         pci_release_selected_regions(pdev, bars);
9773         pci_disable_device(pdev);
9774 }
9775
9776 /**
9777  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
9778  * @pdev: pointer to PCI device
9779  * @msg: power management message
9780  *
9781  * This routine is to be called from the kernel's PCI subsystem to support
9782  * system Power Management (PM) to device with SLI-3 interface spec. When
9783  * PM invokes this method, it quiesces the device by stopping the driver's
9784  * worker thread for the device, turning off device's interrupt and DMA,
9785  * and bring the device offline. Note that as the driver implements the
9786  * minimum PM requirements to a power-aware driver's PM support for the
9787  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9788  * to the suspend() method call will be treated as SUSPEND and the driver will
9789  * fully reinitialize its device during resume() method call, the driver will
9790  * set device to PCI_D3hot state in PCI config space instead of setting it
9791  * according to the @msg provided by the PM.
9792  *
9793  * Return code
9794  *      0 - driver suspended the device
9795  *      Error otherwise
9796  **/
9797 static int
9798 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
9799 {
9800         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9801         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9802
9803         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9804                         "0473 PCI device Power Management suspend.\n");
9805
9806         /* Bring down the device */
9807         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9808         lpfc_offline(phba);
9809         kthread_stop(phba->worker_thread);
9810
9811         /* Disable interrupt from device */
9812         lpfc_sli_disable_intr(phba);
9813
9814         /* Save device state to PCI config space */
9815         pci_save_state(pdev);
9816         pci_set_power_state(pdev, PCI_D3hot);
9817
9818         return 0;
9819 }
9820
9821 /**
9822  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9823  * @pdev: pointer to PCI device
9824  *
9825  * This routine is to be called from the kernel's PCI subsystem to support
9826  * system Power Management (PM) to device with SLI-3 interface spec. When PM
9827  * invokes this method, it restores the device's PCI config space state and
9828  * fully reinitializes the device and brings it online. Note that as the
9829  * driver implements the minimum PM requirements to a power-aware driver's
9830  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9831  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9832  * driver will fully reinitialize its device during resume() method call,
9833  * the device will be set to PCI_D0 directly in PCI config space before
9834  * restoring the state.
9835  *
9836  * Return code
9837  *      0 - driver suspended the device
9838  *      Error otherwise
9839  **/
9840 static int
9841 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9842 {
9843         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9844         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9845         uint32_t intr_mode;
9846         int error;
9847
9848         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9849                         "0452 PCI device Power Management resume.\n");
9850
9851         /* Restore device state from PCI config space */
9852         pci_set_power_state(pdev, PCI_D0);
9853         pci_restore_state(pdev);
9854
9855         /*
9856          * As the new kernel behavior of pci_restore_state() API call clears
9857          * device saved_state flag, need to save the restored state again.
9858          */
9859         pci_save_state(pdev);
9860
9861         if (pdev->is_busmaster)
9862                 pci_set_master(pdev);
9863
9864         /* Startup the kernel thread for this host adapter. */
9865         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9866                                         "lpfc_worker_%d", phba->brd_no);
9867         if (IS_ERR(phba->worker_thread)) {
9868                 error = PTR_ERR(phba->worker_thread);
9869                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9870                                 "0434 PM resume failed to start worker "
9871                                 "thread: error=x%x.\n", error);
9872                 return error;
9873         }
9874
9875         /* Configure and enable interrupt */
9876         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9877         if (intr_mode == LPFC_INTR_ERROR) {
9878                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9879                                 "0430 PM resume Failed to enable interrupt\n");
9880                 return -EIO;
9881         } else
9882                 phba->intr_mode = intr_mode;
9883
9884         /* Restart HBA and bring it online */
9885         lpfc_sli_brdrestart(phba);
9886         lpfc_online(phba);
9887
9888         /* Log the current active interrupt mode */
9889         lpfc_log_intr_mode(phba, phba->intr_mode);
9890
9891         return 0;
9892 }
9893
9894 /**
9895  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9896  * @phba: pointer to lpfc hba data structure.
9897  *
9898  * This routine is called to prepare the SLI3 device for PCI slot recover. It
9899  * aborts all the outstanding SCSI I/Os to the pci device.
9900  **/
9901 static void
9902 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9903 {
9904         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9905                         "2723 PCI channel I/O abort preparing for recovery\n");
9906
9907         /*
9908          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9909          * and let the SCSI mid-layer to retry them to recover.
9910          */
9911         lpfc_sli_abort_fcp_rings(phba);
9912 }
9913
9914 /**
9915  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9916  * @phba: pointer to lpfc hba data structure.
9917  *
9918  * This routine is called to prepare the SLI3 device for PCI slot reset. It
9919  * disables the device interrupt and pci device, and aborts the internal FCP
9920  * pending I/Os.
9921  **/
9922 static void
9923 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9924 {
9925         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9926                         "2710 PCI channel disable preparing for reset\n");
9927
9928         /* Block any management I/Os to the device */
9929         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9930
9931         /* Block all SCSI devices' I/Os on the host */
9932         lpfc_scsi_dev_block(phba);
9933
9934         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9935         lpfc_sli_flush_fcp_rings(phba);
9936
9937         /* stop all timers */
9938         lpfc_stop_hba_timers(phba);
9939
9940         /* Disable interrupt and pci device */
9941         lpfc_sli_disable_intr(phba);
9942         pci_disable_device(phba->pcidev);
9943 }
9944
9945 /**
9946  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9947  * @phba: pointer to lpfc hba data structure.
9948  *
9949  * This routine is called to prepare the SLI3 device for PCI slot permanently
9950  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9951  * pending I/Os.
9952  **/
9953 static void
9954 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9955 {
9956         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9957                         "2711 PCI channel permanent disable for failure\n");
9958         /* Block all SCSI devices' I/Os on the host */
9959         lpfc_scsi_dev_block(phba);
9960
9961         /* stop all timers */
9962         lpfc_stop_hba_timers(phba);
9963
9964         /* Clean up all driver's outstanding SCSI I/Os */
9965         lpfc_sli_flush_fcp_rings(phba);
9966 }
9967
9968 /**
9969  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9970  * @pdev: pointer to PCI device.
9971  * @state: the current PCI connection state.
9972  *
9973  * This routine is called from the PCI subsystem for I/O error handling to
9974  * device with SLI-3 interface spec. This function is called by the PCI
9975  * subsystem after a PCI bus error affecting this device has been detected.
9976  * When this function is invoked, it will need to stop all the I/Os and
9977  * interrupt(s) to the device. Once that is done, it will return
9978  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9979  * as desired.
9980  *
9981  * Return codes
9982  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9983  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9984  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9985  **/
9986 static pci_ers_result_t
9987 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9988 {
9989         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9990         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9991
9992         switch (state) {
9993         case pci_channel_io_normal:
9994                 /* Non-fatal error, prepare for recovery */
9995                 lpfc_sli_prep_dev_for_recover(phba);
9996                 return PCI_ERS_RESULT_CAN_RECOVER;
9997         case pci_channel_io_frozen:
9998                 /* Fatal error, prepare for slot reset */
9999                 lpfc_sli_prep_dev_for_reset(phba);
10000                 return PCI_ERS_RESULT_NEED_RESET;
10001         case pci_channel_io_perm_failure:
10002                 /* Permanent failure, prepare for device down */
10003                 lpfc_sli_prep_dev_for_perm_failure(phba);
10004                 return PCI_ERS_RESULT_DISCONNECT;
10005         default:
10006                 /* Unknown state, prepare and request slot reset */
10007                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10008                                 "0472 Unknown PCI error state: x%x\n", state);
10009                 lpfc_sli_prep_dev_for_reset(phba);
10010                 return PCI_ERS_RESULT_NEED_RESET;
10011         }
10012 }
10013
10014 /**
10015  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
10016  * @pdev: pointer to PCI device.
10017  *
10018  * This routine is called from the PCI subsystem for error handling to
10019  * device with SLI-3 interface spec. This is called after PCI bus has been
10020  * reset to restart the PCI card from scratch, as if from a cold-boot.
10021  * During the PCI subsystem error recovery, after driver returns
10022  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10023  * recovery and then call this routine before calling the .resume method
10024  * to recover the device. This function will initialize the HBA device,
10025  * enable the interrupt, but it will just put the HBA to offline state
10026  * without passing any I/O traffic.
10027  *
10028  * Return codes
10029  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10030  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10031  */
10032 static pci_ers_result_t
10033 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
10034 {
10035         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10036         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10037         struct lpfc_sli *psli = &phba->sli;
10038         uint32_t intr_mode;
10039
10040         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10041         if (pci_enable_device_mem(pdev)) {
10042                 printk(KERN_ERR "lpfc: Cannot re-enable "
10043                         "PCI device after reset.\n");
10044                 return PCI_ERS_RESULT_DISCONNECT;
10045         }
10046
10047         pci_restore_state(pdev);
10048
10049         /*
10050          * As the new kernel behavior of pci_restore_state() API call clears
10051          * device saved_state flag, need to save the restored state again.
10052          */
10053         pci_save_state(pdev);
10054
10055         if (pdev->is_busmaster)
10056                 pci_set_master(pdev);
10057
10058         spin_lock_irq(&phba->hbalock);
10059         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10060         spin_unlock_irq(&phba->hbalock);
10061
10062         /* Configure and enable interrupt */
10063         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
10064         if (intr_mode == LPFC_INTR_ERROR) {
10065                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10066                                 "0427 Cannot re-enable interrupt after "
10067                                 "slot reset.\n");
10068                 return PCI_ERS_RESULT_DISCONNECT;
10069         } else
10070                 phba->intr_mode = intr_mode;
10071
10072         /* Take device offline, it will perform cleanup */
10073         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10074         lpfc_offline(phba);
10075         lpfc_sli_brdrestart(phba);
10076
10077         /* Log the current active interrupt mode */
10078         lpfc_log_intr_mode(phba, phba->intr_mode);
10079
10080         return PCI_ERS_RESULT_RECOVERED;
10081 }
10082
10083 /**
10084  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
10085  * @pdev: pointer to PCI device
10086  *
10087  * This routine is called from the PCI subsystem for error handling to device
10088  * with SLI-3 interface spec. It is called when kernel error recovery tells
10089  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10090  * error recovery. After this call, traffic can start to flow from this device
10091  * again.
10092  */
10093 static void
10094 lpfc_io_resume_s3(struct pci_dev *pdev)
10095 {
10096         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10097         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10098
10099         /* Bring device online, it will be no-op for non-fatal error resume */
10100         lpfc_online(phba);
10101
10102         /* Clean up Advanced Error Reporting (AER) if needed */
10103         if (phba->hba_flag & HBA_AER_ENABLED)
10104                 pci_cleanup_aer_uncorrect_error_status(pdev);
10105 }
10106
10107 /**
10108  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
10109  * @phba: pointer to lpfc hba data structure.
10110  *
10111  * returns the number of ELS/CT IOCBs to reserve
10112  **/
10113 int
10114 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
10115 {
10116         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
10117
10118         if (phba->sli_rev == LPFC_SLI_REV4) {
10119                 if (max_xri <= 100)
10120                         return 10;
10121                 else if (max_xri <= 256)
10122                         return 25;
10123                 else if (max_xri <= 512)
10124                         return 50;
10125                 else if (max_xri <= 1024)
10126                         return 100;
10127                 else if (max_xri <= 1536)
10128                         return 150;
10129                 else if (max_xri <= 2048)
10130                         return 200;
10131                 else
10132                         return 250;
10133         } else
10134                 return 0;
10135 }
10136
10137 /**
10138  * lpfc_write_firmware - attempt to write a firmware image to the port
10139  * @fw: pointer to firmware image returned from request_firmware.
10140  * @phba: pointer to lpfc hba data structure.
10141  *
10142  **/
10143 static void
10144 lpfc_write_firmware(const struct firmware *fw, void *context)
10145 {
10146         struct lpfc_hba *phba = (struct lpfc_hba *)context;
10147         char fwrev[FW_REV_STR_SIZE];
10148         struct lpfc_grp_hdr *image;
10149         struct list_head dma_buffer_list;
10150         int i, rc = 0;
10151         struct lpfc_dmabuf *dmabuf, *next;
10152         uint32_t offset = 0, temp_offset = 0;
10153
10154         /* It can be null in no-wait mode, sanity check */
10155         if (!fw) {
10156                 rc = -ENXIO;
10157                 goto out;
10158         }
10159         image = (struct lpfc_grp_hdr *)fw->data;
10160
10161         INIT_LIST_HEAD(&dma_buffer_list);
10162         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
10163             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
10164              LPFC_FILE_TYPE_GROUP) ||
10165             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
10166             (be32_to_cpu(image->size) != fw->size)) {
10167                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10168                                 "3022 Invalid FW image found. "
10169                                 "Magic:%x Type:%x ID:%x\n",
10170                                 be32_to_cpu(image->magic_number),
10171                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
10172                                 bf_get_be32(lpfc_grp_hdr_id, image));
10173                 rc = -EINVAL;
10174                 goto release_out;
10175         }
10176         lpfc_decode_firmware_rev(phba, fwrev, 1);
10177         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
10178                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10179                                 "3023 Updating Firmware, Current Version:%s "
10180                                 "New Version:%s\n",
10181                                 fwrev, image->revision);
10182                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
10183                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
10184                                          GFP_KERNEL);
10185                         if (!dmabuf) {
10186                                 rc = -ENOMEM;
10187                                 goto release_out;
10188                         }
10189                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
10190                                                           SLI4_PAGE_SIZE,
10191                                                           &dmabuf->phys,
10192                                                           GFP_KERNEL);
10193                         if (!dmabuf->virt) {
10194                                 kfree(dmabuf);
10195                                 rc = -ENOMEM;
10196                                 goto release_out;
10197                         }
10198                         list_add_tail(&dmabuf->list, &dma_buffer_list);
10199                 }
10200                 while (offset < fw->size) {
10201                         temp_offset = offset;
10202                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
10203                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
10204                                         memcpy(dmabuf->virt,
10205                                                fw->data + temp_offset,
10206                                                fw->size - temp_offset);
10207                                         temp_offset = fw->size;
10208                                         break;
10209                                 }
10210                                 memcpy(dmabuf->virt, fw->data + temp_offset,
10211                                        SLI4_PAGE_SIZE);
10212                                 temp_offset += SLI4_PAGE_SIZE;
10213                         }
10214                         rc = lpfc_wr_object(phba, &dma_buffer_list,
10215                                     (fw->size - offset), &offset);
10216                         if (rc)
10217                                 goto release_out;
10218                 }
10219                 rc = offset;
10220         }
10221
10222 release_out:
10223         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
10224                 list_del(&dmabuf->list);
10225                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
10226                                   dmabuf->virt, dmabuf->phys);
10227                 kfree(dmabuf);
10228         }
10229         release_firmware(fw);
10230 out:
10231         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10232                         "3024 Firmware update done: %d.\n", rc);
10233         return;
10234 }
10235
10236 /**
10237  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
10238  * @phba: pointer to lpfc hba data structure.
10239  *
10240  * This routine is called to perform Linux generic firmware upgrade on device
10241  * that supports such feature.
10242  **/
10243 int
10244 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
10245 {
10246         uint8_t file_name[ELX_MODEL_NAME_SIZE];
10247         int ret;
10248         const struct firmware *fw;
10249
10250         /* Only supported on SLI4 interface type 2 for now */
10251         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
10252             LPFC_SLI_INTF_IF_TYPE_2)
10253                 return -EPERM;
10254
10255         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
10256
10257         if (fw_upgrade == INT_FW_UPGRADE) {
10258                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
10259                                         file_name, &phba->pcidev->dev,
10260                                         GFP_KERNEL, (void *)phba,
10261                                         lpfc_write_firmware);
10262         } else if (fw_upgrade == RUN_FW_UPGRADE) {
10263                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
10264                 if (!ret)
10265                         lpfc_write_firmware(fw, (void *)phba);
10266         } else {
10267                 ret = -EINVAL;
10268         }
10269
10270         return ret;
10271 }
10272
10273 /**
10274  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
10275  * @pdev: pointer to PCI device
10276  * @pid: pointer to PCI device identifier
10277  *
10278  * This routine is called from the kernel's PCI subsystem to device with
10279  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10280  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
10281  * information of the device and driver to see if the driver state that it
10282  * can support this kind of device. If the match is successful, the driver
10283  * core invokes this routine. If this routine determines it can claim the HBA,
10284  * it does all the initialization that it needs to do to handle the HBA
10285  * properly.
10286  *
10287  * Return code
10288  *      0 - driver can claim the device
10289  *      negative value - driver can not claim the device
10290  **/
10291 static int
10292 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
10293 {
10294         struct lpfc_hba   *phba;
10295         struct lpfc_vport *vport = NULL;
10296         struct Scsi_Host  *shost = NULL;
10297         int error;
10298         uint32_t cfg_mode, intr_mode;
10299         int adjusted_fcp_io_channel;
10300
10301         /* Allocate memory for HBA structure */
10302         phba = lpfc_hba_alloc(pdev);
10303         if (!phba)
10304                 return -ENOMEM;
10305
10306         /* Perform generic PCI device enabling operation */
10307         error = lpfc_enable_pci_dev(phba);
10308         if (error)
10309                 goto out_free_phba;
10310
10311         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
10312         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
10313         if (error)
10314                 goto out_disable_pci_dev;
10315
10316         /* Set up SLI-4 specific device PCI memory space */
10317         error = lpfc_sli4_pci_mem_setup(phba);
10318         if (error) {
10319                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10320                                 "1410 Failed to set up pci memory space.\n");
10321                 goto out_disable_pci_dev;
10322         }
10323
10324         /* Set up phase-1 common device driver resources */
10325         error = lpfc_setup_driver_resource_phase1(phba);
10326         if (error) {
10327                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10328                                 "1411 Failed to set up driver resource.\n");
10329                 goto out_unset_pci_mem_s4;
10330         }
10331
10332         /* Set up SLI-4 Specific device driver resources */
10333         error = lpfc_sli4_driver_resource_setup(phba);
10334         if (error) {
10335                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10336                                 "1412 Failed to set up driver resource.\n");
10337                 goto out_unset_pci_mem_s4;
10338         }
10339
10340         /* Initialize and populate the iocb list per host */
10341
10342         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10343                         "2821 initialize iocb list %d.\n",
10344                         phba->cfg_iocb_cnt*1024);
10345         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
10346
10347         if (error) {
10348                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10349                                 "1413 Failed to initialize iocb list.\n");
10350                 goto out_unset_driver_resource_s4;
10351         }
10352
10353         INIT_LIST_HEAD(&phba->active_rrq_list);
10354         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
10355
10356         /* Set up common device driver resources */
10357         error = lpfc_setup_driver_resource_phase2(phba);
10358         if (error) {
10359                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10360                                 "1414 Failed to set up driver resource.\n");
10361                 goto out_free_iocb_list;
10362         }
10363
10364         /* Get the default values for Model Name and Description */
10365         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
10366
10367         /* Create SCSI host to the physical port */
10368         error = lpfc_create_shost(phba);
10369         if (error) {
10370                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10371                                 "1415 Failed to create scsi host.\n");
10372                 goto out_unset_driver_resource;
10373         }
10374
10375         /* Configure sysfs attributes */
10376         vport = phba->pport;
10377         error = lpfc_alloc_sysfs_attr(vport);
10378         if (error) {
10379                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10380                                 "1416 Failed to allocate sysfs attr\n");
10381                 goto out_destroy_shost;
10382         }
10383
10384         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
10385         /* Now, trying to enable interrupt and bring up the device */
10386         cfg_mode = phba->cfg_use_msi;
10387
10388         /* Put device to a known state before enabling interrupt */
10389         lpfc_stop_port(phba);
10390         /* Configure and enable interrupt */
10391         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
10392         if (intr_mode == LPFC_INTR_ERROR) {
10393                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10394                                 "0426 Failed to enable interrupt.\n");
10395                 error = -ENODEV;
10396                 goto out_free_sysfs_attr;
10397         }
10398         /* Default to single EQ for non-MSI-X */
10399         if (phba->intr_type != MSIX)
10400                 adjusted_fcp_io_channel = 1;
10401         else
10402                 adjusted_fcp_io_channel = phba->cfg_fcp_io_channel;
10403         phba->cfg_fcp_io_channel = adjusted_fcp_io_channel;
10404         /* Set up SLI-4 HBA */
10405         if (lpfc_sli4_hba_setup(phba)) {
10406                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10407                                 "1421 Failed to set up hba\n");
10408                 error = -ENODEV;
10409                 goto out_disable_intr;
10410         }
10411
10412         /* Log the current active interrupt mode */
10413         phba->intr_mode = intr_mode;
10414         lpfc_log_intr_mode(phba, intr_mode);
10415
10416         /* Perform post initialization setup */
10417         lpfc_post_init_setup(phba);
10418
10419         /* check for firmware upgrade or downgrade */
10420         if (phba->cfg_request_firmware_upgrade)
10421                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
10422
10423         /* Check if there are static vports to be created. */
10424         lpfc_create_static_vport(phba);
10425         return 0;
10426
10427 out_disable_intr:
10428         lpfc_sli4_disable_intr(phba);
10429 out_free_sysfs_attr:
10430         lpfc_free_sysfs_attr(vport);
10431 out_destroy_shost:
10432         lpfc_destroy_shost(phba);
10433 out_unset_driver_resource:
10434         lpfc_unset_driver_resource_phase2(phba);
10435 out_free_iocb_list:
10436         lpfc_free_iocb_list(phba);
10437 out_unset_driver_resource_s4:
10438         lpfc_sli4_driver_resource_unset(phba);
10439 out_unset_pci_mem_s4:
10440         lpfc_sli4_pci_mem_unset(phba);
10441 out_disable_pci_dev:
10442         lpfc_disable_pci_dev(phba);
10443         if (shost)
10444                 scsi_host_put(shost);
10445 out_free_phba:
10446         lpfc_hba_free(phba);
10447         return error;
10448 }
10449
10450 /**
10451  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
10452  * @pdev: pointer to PCI device
10453  *
10454  * This routine is called from the kernel's PCI subsystem to device with
10455  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
10456  * removed from PCI bus, it performs all the necessary cleanup for the HBA
10457  * device to be removed from the PCI subsystem properly.
10458  **/
10459 static void
10460 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
10461 {
10462         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10463         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
10464         struct lpfc_vport **vports;
10465         struct lpfc_hba *phba = vport->phba;
10466         int i;
10467
10468         /* Mark the device unloading flag */
10469         spin_lock_irq(&phba->hbalock);
10470         vport->load_flag |= FC_UNLOADING;
10471         spin_unlock_irq(&phba->hbalock);
10472
10473         /* Free the HBA sysfs attributes */
10474         lpfc_free_sysfs_attr(vport);
10475
10476         /* Release all the vports against this physical port */
10477         vports = lpfc_create_vport_work_array(phba);
10478         if (vports != NULL)
10479                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
10480                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
10481                                 continue;
10482                         fc_vport_terminate(vports[i]->fc_vport);
10483                 }
10484         lpfc_destroy_vport_work_array(phba, vports);
10485
10486         /* Remove FC host and then SCSI host with the physical port */
10487         fc_remove_host(shost);
10488         scsi_remove_host(shost);
10489
10490         /* Perform cleanup on the physical port */
10491         lpfc_cleanup(vport);
10492
10493         /*
10494          * Bring down the SLI Layer. This step disables all interrupts,
10495          * clears the rings, discards all mailbox commands, and resets
10496          * the HBA FCoE function.
10497          */
10498         lpfc_debugfs_terminate(vport);
10499         lpfc_sli4_hba_unset(phba);
10500
10501         spin_lock_irq(&phba->hbalock);
10502         list_del_init(&vport->listentry);
10503         spin_unlock_irq(&phba->hbalock);
10504
10505         /* Perform scsi free before driver resource_unset since scsi
10506          * buffers are released to their corresponding pools here.
10507          */
10508         lpfc_scsi_free(phba);
10509
10510         lpfc_sli4_driver_resource_unset(phba);
10511
10512         /* Unmap adapter Control and Doorbell registers */
10513         lpfc_sli4_pci_mem_unset(phba);
10514
10515         /* Release PCI resources and disable device's PCI function */
10516         scsi_host_put(shost);
10517         lpfc_disable_pci_dev(phba);
10518
10519         /* Finally, free the driver's device data structure */
10520         lpfc_hba_free(phba);
10521
10522         return;
10523 }
10524
10525 /**
10526  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
10527  * @pdev: pointer to PCI device
10528  * @msg: power management message
10529  *
10530  * This routine is called from the kernel's PCI subsystem to support system
10531  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
10532  * this method, it quiesces the device by stopping the driver's worker
10533  * thread for the device, turning off device's interrupt and DMA, and bring
10534  * the device offline. Note that as the driver implements the minimum PM
10535  * requirements to a power-aware driver's PM support for suspend/resume -- all
10536  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
10537  * method call will be treated as SUSPEND and the driver will fully
10538  * reinitialize its device during resume() method call, the driver will set
10539  * device to PCI_D3hot state in PCI config space instead of setting it
10540  * according to the @msg provided by the PM.
10541  *
10542  * Return code
10543  *      0 - driver suspended the device
10544  *      Error otherwise
10545  **/
10546 static int
10547 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
10548 {
10549         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10550         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10551
10552         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10553                         "2843 PCI device Power Management suspend.\n");
10554
10555         /* Bring down the device */
10556         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10557         lpfc_offline(phba);
10558         kthread_stop(phba->worker_thread);
10559
10560         /* Disable interrupt from device */
10561         lpfc_sli4_disable_intr(phba);
10562         lpfc_sli4_queue_destroy(phba);
10563
10564         /* Save device state to PCI config space */
10565         pci_save_state(pdev);
10566         pci_set_power_state(pdev, PCI_D3hot);
10567
10568         return 0;
10569 }
10570
10571 /**
10572  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
10573  * @pdev: pointer to PCI device
10574  *
10575  * This routine is called from the kernel's PCI subsystem to support system
10576  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
10577  * this method, it restores the device's PCI config space state and fully
10578  * reinitializes the device and brings it online. Note that as the driver
10579  * implements the minimum PM requirements to a power-aware driver's PM for
10580  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
10581  * to the suspend() method call will be treated as SUSPEND and the driver
10582  * will fully reinitialize its device during resume() method call, the device
10583  * will be set to PCI_D0 directly in PCI config space before restoring the
10584  * state.
10585  *
10586  * Return code
10587  *      0 - driver suspended the device
10588  *      Error otherwise
10589  **/
10590 static int
10591 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
10592 {
10593         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10594         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10595         uint32_t intr_mode;
10596         int error;
10597
10598         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10599                         "0292 PCI device Power Management resume.\n");
10600
10601         /* Restore device state from PCI config space */
10602         pci_set_power_state(pdev, PCI_D0);
10603         pci_restore_state(pdev);
10604
10605         /*
10606          * As the new kernel behavior of pci_restore_state() API call clears
10607          * device saved_state flag, need to save the restored state again.
10608          */
10609         pci_save_state(pdev);
10610
10611         if (pdev->is_busmaster)
10612                 pci_set_master(pdev);
10613
10614          /* Startup the kernel thread for this host adapter. */
10615         phba->worker_thread = kthread_run(lpfc_do_work, phba,
10616                                         "lpfc_worker_%d", phba->brd_no);
10617         if (IS_ERR(phba->worker_thread)) {
10618                 error = PTR_ERR(phba->worker_thread);
10619                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10620                                 "0293 PM resume failed to start worker "
10621                                 "thread: error=x%x.\n", error);
10622                 return error;
10623         }
10624
10625         /* Configure and enable interrupt */
10626         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10627         if (intr_mode == LPFC_INTR_ERROR) {
10628                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10629                                 "0294 PM resume Failed to enable interrupt\n");
10630                 return -EIO;
10631         } else
10632                 phba->intr_mode = intr_mode;
10633
10634         /* Restart HBA and bring it online */
10635         lpfc_sli_brdrestart(phba);
10636         lpfc_online(phba);
10637
10638         /* Log the current active interrupt mode */
10639         lpfc_log_intr_mode(phba, phba->intr_mode);
10640
10641         return 0;
10642 }
10643
10644 /**
10645  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
10646  * @phba: pointer to lpfc hba data structure.
10647  *
10648  * This routine is called to prepare the SLI4 device for PCI slot recover. It
10649  * aborts all the outstanding SCSI I/Os to the pci device.
10650  **/
10651 static void
10652 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
10653 {
10654         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10655                         "2828 PCI channel I/O abort preparing for recovery\n");
10656         /*
10657          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
10658          * and let the SCSI mid-layer to retry them to recover.
10659          */
10660         lpfc_sli_abort_fcp_rings(phba);
10661 }
10662
10663 /**
10664  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
10665  * @phba: pointer to lpfc hba data structure.
10666  *
10667  * This routine is called to prepare the SLI4 device for PCI slot reset. It
10668  * disables the device interrupt and pci device, and aborts the internal FCP
10669  * pending I/Os.
10670  **/
10671 static void
10672 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
10673 {
10674         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10675                         "2826 PCI channel disable preparing for reset\n");
10676
10677         /* Block any management I/Os to the device */
10678         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
10679
10680         /* Block all SCSI devices' I/Os on the host */
10681         lpfc_scsi_dev_block(phba);
10682
10683         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
10684         lpfc_sli_flush_fcp_rings(phba);
10685
10686         /* stop all timers */
10687         lpfc_stop_hba_timers(phba);
10688
10689         /* Disable interrupt and pci device */
10690         lpfc_sli4_disable_intr(phba);
10691         lpfc_sli4_queue_destroy(phba);
10692         pci_disable_device(phba->pcidev);
10693 }
10694
10695 /**
10696  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
10697  * @phba: pointer to lpfc hba data structure.
10698  *
10699  * This routine is called to prepare the SLI4 device for PCI slot permanently
10700  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
10701  * pending I/Os.
10702  **/
10703 static void
10704 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
10705 {
10706         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10707                         "2827 PCI channel permanent disable for failure\n");
10708
10709         /* Block all SCSI devices' I/Os on the host */
10710         lpfc_scsi_dev_block(phba);
10711
10712         /* stop all timers */
10713         lpfc_stop_hba_timers(phba);
10714
10715         /* Clean up all driver's outstanding SCSI I/Os */
10716         lpfc_sli_flush_fcp_rings(phba);
10717 }
10718
10719 /**
10720  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
10721  * @pdev: pointer to PCI device.
10722  * @state: the current PCI connection state.
10723  *
10724  * This routine is called from the PCI subsystem for error handling to device
10725  * with SLI-4 interface spec. This function is called by the PCI subsystem
10726  * after a PCI bus error affecting this device has been detected. When this
10727  * function is invoked, it will need to stop all the I/Os and interrupt(s)
10728  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
10729  * for the PCI subsystem to perform proper recovery as desired.
10730  *
10731  * Return codes
10732  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10733  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10734  **/
10735 static pci_ers_result_t
10736 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
10737 {
10738         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10739         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10740
10741         switch (state) {
10742         case pci_channel_io_normal:
10743                 /* Non-fatal error, prepare for recovery */
10744                 lpfc_sli4_prep_dev_for_recover(phba);
10745                 return PCI_ERS_RESULT_CAN_RECOVER;
10746         case pci_channel_io_frozen:
10747                 /* Fatal error, prepare for slot reset */
10748                 lpfc_sli4_prep_dev_for_reset(phba);
10749                 return PCI_ERS_RESULT_NEED_RESET;
10750         case pci_channel_io_perm_failure:
10751                 /* Permanent failure, prepare for device down */
10752                 lpfc_sli4_prep_dev_for_perm_failure(phba);
10753                 return PCI_ERS_RESULT_DISCONNECT;
10754         default:
10755                 /* Unknown state, prepare and request slot reset */
10756                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10757                                 "2825 Unknown PCI error state: x%x\n", state);
10758                 lpfc_sli4_prep_dev_for_reset(phba);
10759                 return PCI_ERS_RESULT_NEED_RESET;
10760         }
10761 }
10762
10763 /**
10764  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
10765  * @pdev: pointer to PCI device.
10766  *
10767  * This routine is called from the PCI subsystem for error handling to device
10768  * with SLI-4 interface spec. It is called after PCI bus has been reset to
10769  * restart the PCI card from scratch, as if from a cold-boot. During the
10770  * PCI subsystem error recovery, after the driver returns
10771  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
10772  * recovery and then call this routine before calling the .resume method to
10773  * recover the device. This function will initialize the HBA device, enable
10774  * the interrupt, but it will just put the HBA to offline state without
10775  * passing any I/O traffic.
10776  *
10777  * Return codes
10778  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10779  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10780  */
10781 static pci_ers_result_t
10782 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
10783 {
10784         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10785         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10786         struct lpfc_sli *psli = &phba->sli;
10787         uint32_t intr_mode;
10788
10789         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
10790         if (pci_enable_device_mem(pdev)) {
10791                 printk(KERN_ERR "lpfc: Cannot re-enable "
10792                         "PCI device after reset.\n");
10793                 return PCI_ERS_RESULT_DISCONNECT;
10794         }
10795
10796         pci_restore_state(pdev);
10797
10798         /*
10799          * As the new kernel behavior of pci_restore_state() API call clears
10800          * device saved_state flag, need to save the restored state again.
10801          */
10802         pci_save_state(pdev);
10803
10804         if (pdev->is_busmaster)
10805                 pci_set_master(pdev);
10806
10807         spin_lock_irq(&phba->hbalock);
10808         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10809         spin_unlock_irq(&phba->hbalock);
10810
10811         /* Configure and enable interrupt */
10812         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10813         if (intr_mode == LPFC_INTR_ERROR) {
10814                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10815                                 "2824 Cannot re-enable interrupt after "
10816                                 "slot reset.\n");
10817                 return PCI_ERS_RESULT_DISCONNECT;
10818         } else
10819                 phba->intr_mode = intr_mode;
10820
10821         /* Log the current active interrupt mode */
10822         lpfc_log_intr_mode(phba, phba->intr_mode);
10823
10824         return PCI_ERS_RESULT_RECOVERED;
10825 }
10826
10827 /**
10828  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10829  * @pdev: pointer to PCI device
10830  *
10831  * This routine is called from the PCI subsystem for error handling to device
10832  * with SLI-4 interface spec. It is called when kernel error recovery tells
10833  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10834  * error recovery. After this call, traffic can start to flow from this device
10835  * again.
10836  **/
10837 static void
10838 lpfc_io_resume_s4(struct pci_dev *pdev)
10839 {
10840         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10841         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10842
10843         /*
10844          * In case of slot reset, as function reset is performed through
10845          * mailbox command which needs DMA to be enabled, this operation
10846          * has to be moved to the io resume phase. Taking device offline
10847          * will perform the necessary cleanup.
10848          */
10849         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10850                 /* Perform device reset */
10851                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10852                 lpfc_offline(phba);
10853                 lpfc_sli_brdrestart(phba);
10854                 /* Bring the device back online */
10855                 lpfc_online(phba);
10856         }
10857
10858         /* Clean up Advanced Error Reporting (AER) if needed */
10859         if (phba->hba_flag & HBA_AER_ENABLED)
10860                 pci_cleanup_aer_uncorrect_error_status(pdev);
10861 }
10862
10863 /**
10864  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10865  * @pdev: pointer to PCI device
10866  * @pid: pointer to PCI device identifier
10867  *
10868  * This routine is to be registered to the kernel's PCI subsystem. When an
10869  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10870  * at PCI device-specific information of the device and driver to see if the
10871  * driver state that it can support this kind of device. If the match is
10872  * successful, the driver core invokes this routine. This routine dispatches
10873  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10874  * do all the initialization that it needs to do to handle the HBA device
10875  * properly.
10876  *
10877  * Return code
10878  *      0 - driver can claim the device
10879  *      negative value - driver can not claim the device
10880  **/
10881 static int
10882 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10883 {
10884         int rc;
10885         struct lpfc_sli_intf intf;
10886
10887         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10888                 return -ENODEV;
10889
10890         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10891             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10892                 rc = lpfc_pci_probe_one_s4(pdev, pid);
10893         else
10894                 rc = lpfc_pci_probe_one_s3(pdev, pid);
10895
10896         return rc;
10897 }
10898
10899 /**
10900  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10901  * @pdev: pointer to PCI device
10902  *
10903  * This routine is to be registered to the kernel's PCI subsystem. When an
10904  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10905  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10906  * remove routine, which will perform all the necessary cleanup for the
10907  * device to be removed from the PCI subsystem properly.
10908  **/
10909 static void
10910 lpfc_pci_remove_one(struct pci_dev *pdev)
10911 {
10912         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10913         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10914
10915         switch (phba->pci_dev_grp) {
10916         case LPFC_PCI_DEV_LP:
10917                 lpfc_pci_remove_one_s3(pdev);
10918                 break;
10919         case LPFC_PCI_DEV_OC:
10920                 lpfc_pci_remove_one_s4(pdev);
10921                 break;
10922         default:
10923                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10924                                 "1424 Invalid PCI device group: 0x%x\n",
10925                                 phba->pci_dev_grp);
10926                 break;
10927         }
10928         return;
10929 }
10930
10931 /**
10932  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10933  * @pdev: pointer to PCI device
10934  * @msg: power management message
10935  *
10936  * This routine is to be registered to the kernel's PCI subsystem to support
10937  * system Power Management (PM). When PM invokes this method, it dispatches
10938  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10939  * suspend the device.
10940  *
10941  * Return code
10942  *      0 - driver suspended the device
10943  *      Error otherwise
10944  **/
10945 static int
10946 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10947 {
10948         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10949         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10950         int rc = -ENODEV;
10951
10952         switch (phba->pci_dev_grp) {
10953         case LPFC_PCI_DEV_LP:
10954                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10955                 break;
10956         case LPFC_PCI_DEV_OC:
10957                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10958                 break;
10959         default:
10960                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10961                                 "1425 Invalid PCI device group: 0x%x\n",
10962                                 phba->pci_dev_grp);
10963                 break;
10964         }
10965         return rc;
10966 }
10967
10968 /**
10969  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10970  * @pdev: pointer to PCI device
10971  *
10972  * This routine is to be registered to the kernel's PCI subsystem to support
10973  * system Power Management (PM). When PM invokes this method, it dispatches
10974  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10975  * resume the device.
10976  *
10977  * Return code
10978  *      0 - driver suspended the device
10979  *      Error otherwise
10980  **/
10981 static int
10982 lpfc_pci_resume_one(struct pci_dev *pdev)
10983 {
10984         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10985         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10986         int rc = -ENODEV;
10987
10988         switch (phba->pci_dev_grp) {
10989         case LPFC_PCI_DEV_LP:
10990                 rc = lpfc_pci_resume_one_s3(pdev);
10991                 break;
10992         case LPFC_PCI_DEV_OC:
10993                 rc = lpfc_pci_resume_one_s4(pdev);
10994                 break;
10995         default:
10996                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10997                                 "1426 Invalid PCI device group: 0x%x\n",
10998                                 phba->pci_dev_grp);
10999                 break;
11000         }
11001         return rc;
11002 }
11003
11004 /**
11005  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
11006  * @pdev: pointer to PCI device.
11007  * @state: the current PCI connection state.
11008  *
11009  * This routine is registered to the PCI subsystem for error handling. This
11010  * function is called by the PCI subsystem after a PCI bus error affecting
11011  * this device has been detected. When this routine is invoked, it dispatches
11012  * the action to the proper SLI-3 or SLI-4 device error detected handling
11013  * routine, which will perform the proper error detected operation.
11014  *
11015  * Return codes
11016  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
11017  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11018  **/
11019 static pci_ers_result_t
11020 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
11021 {
11022         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11023         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11024         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11025
11026         switch (phba->pci_dev_grp) {
11027         case LPFC_PCI_DEV_LP:
11028                 rc = lpfc_io_error_detected_s3(pdev, state);
11029                 break;
11030         case LPFC_PCI_DEV_OC:
11031                 rc = lpfc_io_error_detected_s4(pdev, state);
11032                 break;
11033         default:
11034                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11035                                 "1427 Invalid PCI device group: 0x%x\n",
11036                                 phba->pci_dev_grp);
11037                 break;
11038         }
11039         return rc;
11040 }
11041
11042 /**
11043  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
11044  * @pdev: pointer to PCI device.
11045  *
11046  * This routine is registered to the PCI subsystem for error handling. This
11047  * function is called after PCI bus has been reset to restart the PCI card
11048  * from scratch, as if from a cold-boot. When this routine is invoked, it
11049  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
11050  * routine, which will perform the proper device reset.
11051  *
11052  * Return codes
11053  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
11054  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
11055  **/
11056 static pci_ers_result_t
11057 lpfc_io_slot_reset(struct pci_dev *pdev)
11058 {
11059         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11060         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11061         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
11062
11063         switch (phba->pci_dev_grp) {
11064         case LPFC_PCI_DEV_LP:
11065                 rc = lpfc_io_slot_reset_s3(pdev);
11066                 break;
11067         case LPFC_PCI_DEV_OC:
11068                 rc = lpfc_io_slot_reset_s4(pdev);
11069                 break;
11070         default:
11071                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11072                                 "1428 Invalid PCI device group: 0x%x\n",
11073                                 phba->pci_dev_grp);
11074                 break;
11075         }
11076         return rc;
11077 }
11078
11079 /**
11080  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
11081  * @pdev: pointer to PCI device
11082  *
11083  * This routine is registered to the PCI subsystem for error handling. It
11084  * is called when kernel error recovery tells the lpfc driver that it is
11085  * OK to resume normal PCI operation after PCI bus error recovery. When
11086  * this routine is invoked, it dispatches the action to the proper SLI-3
11087  * or SLI-4 device io_resume routine, which will resume the device operation.
11088  **/
11089 static void
11090 lpfc_io_resume(struct pci_dev *pdev)
11091 {
11092         struct Scsi_Host *shost = pci_get_drvdata(pdev);
11093         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
11094
11095         switch (phba->pci_dev_grp) {
11096         case LPFC_PCI_DEV_LP:
11097                 lpfc_io_resume_s3(pdev);
11098                 break;
11099         case LPFC_PCI_DEV_OC:
11100                 lpfc_io_resume_s4(pdev);
11101                 break;
11102         default:
11103                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11104                                 "1429 Invalid PCI device group: 0x%x\n",
11105                                 phba->pci_dev_grp);
11106                 break;
11107         }
11108         return;
11109 }
11110
11111 /**
11112  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
11113  * @phba: pointer to lpfc hba data structure.
11114  *
11115  * This routine checks to see if OAS is supported for this adapter. If
11116  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
11117  * the enable oas flag is cleared and the pool created for OAS device data
11118  * is destroyed.
11119  *
11120  **/
11121 void
11122 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
11123 {
11124
11125         if (!phba->cfg_EnableXLane)
11126                 return;
11127
11128         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
11129                 phba->cfg_fof = 1;
11130         } else {
11131                 phba->cfg_fof = 0;
11132                 if (phba->device_data_mem_pool)
11133                         mempool_destroy(phba->device_data_mem_pool);
11134                 phba->device_data_mem_pool = NULL;
11135         }
11136
11137         return;
11138 }
11139
11140 /**
11141  * lpfc_fof_queue_setup - Set up all the fof queues
11142  * @phba: pointer to lpfc hba data structure.
11143  *
11144  * This routine is invoked to set up all the fof queues for the FC HBA
11145  * operation.
11146  *
11147  * Return codes
11148  *      0 - successful
11149  *      -ENOMEM - No available memory
11150  **/
11151 int
11152 lpfc_fof_queue_setup(struct lpfc_hba *phba)
11153 {
11154         struct lpfc_sli *psli = &phba->sli;
11155         int rc;
11156
11157         rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
11158         if (rc)
11159                 return -ENOMEM;
11160
11161         if (phba->cfg_fof) {
11162
11163                 rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
11164                                     phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
11165                 if (rc)
11166                         goto out_oas_cq;
11167
11168                 rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
11169                                     phba->sli4_hba.oas_cq, LPFC_FCP);
11170                 if (rc)
11171                         goto out_oas_wq;
11172
11173                 phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
11174                 phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
11175         }
11176
11177         return 0;
11178
11179 out_oas_wq:
11180         lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
11181 out_oas_cq:
11182         lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
11183         return rc;
11184
11185 }
11186
11187 /**
11188  * lpfc_fof_queue_create - Create all the fof queues
11189  * @phba: pointer to lpfc hba data structure.
11190  *
11191  * This routine is invoked to allocate all the fof queues for the FC HBA
11192  * operation. For each SLI4 queue type, the parameters such as queue entry
11193  * count (queue depth) shall be taken from the module parameter. For now,
11194  * we just use some constant number as place holder.
11195  *
11196  * Return codes
11197  *      0 - successful
11198  *      -ENOMEM - No availble memory
11199  *      -EIO - The mailbox failed to complete successfully.
11200  **/
11201 int
11202 lpfc_fof_queue_create(struct lpfc_hba *phba)
11203 {
11204         struct lpfc_queue *qdesc;
11205
11206         /* Create FOF EQ */
11207         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
11208                                       phba->sli4_hba.eq_ecount);
11209         if (!qdesc)
11210                 goto out_error;
11211
11212         phba->sli4_hba.fof_eq = qdesc;
11213
11214         if (phba->cfg_fof) {
11215
11216                 /* Create OAS CQ */
11217                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
11218                                                       phba->sli4_hba.cq_ecount);
11219                 if (!qdesc)
11220                         goto out_error;
11221
11222                 phba->sli4_hba.oas_cq = qdesc;
11223
11224                 /* Create OAS WQ */
11225                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
11226                                               phba->sli4_hba.wq_ecount);
11227                 if (!qdesc)
11228                         goto out_error;
11229
11230                 phba->sli4_hba.oas_wq = qdesc;
11231
11232         }
11233         return 0;
11234
11235 out_error:
11236         lpfc_fof_queue_destroy(phba);
11237         return -ENOMEM;
11238 }
11239
11240 /**
11241  * lpfc_fof_queue_destroy - Destroy all the fof queues
11242  * @phba: pointer to lpfc hba data structure.
11243  *
11244  * This routine is invoked to release all the SLI4 queues with the FC HBA
11245  * operation.
11246  *
11247  * Return codes
11248  *      0 - successful
11249  **/
11250 int
11251 lpfc_fof_queue_destroy(struct lpfc_hba *phba)
11252 {
11253         /* Release FOF Event queue */
11254         if (phba->sli4_hba.fof_eq != NULL) {
11255                 lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
11256                 phba->sli4_hba.fof_eq = NULL;
11257         }
11258
11259         /* Release OAS Completion queue */
11260         if (phba->sli4_hba.oas_cq != NULL) {
11261                 lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
11262                 phba->sli4_hba.oas_cq = NULL;
11263         }
11264
11265         /* Release OAS Work queue */
11266         if (phba->sli4_hba.oas_wq != NULL) {
11267                 lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
11268                 phba->sli4_hba.oas_wq = NULL;
11269         }
11270         return 0;
11271 }
11272
11273 static struct pci_device_id lpfc_id_table[] = {
11274         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
11275                 PCI_ANY_ID, PCI_ANY_ID, },
11276         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
11277                 PCI_ANY_ID, PCI_ANY_ID, },
11278         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
11279                 PCI_ANY_ID, PCI_ANY_ID, },
11280         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
11281                 PCI_ANY_ID, PCI_ANY_ID, },
11282         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
11283                 PCI_ANY_ID, PCI_ANY_ID, },
11284         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
11285                 PCI_ANY_ID, PCI_ANY_ID, },
11286         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
11287                 PCI_ANY_ID, PCI_ANY_ID, },
11288         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
11289                 PCI_ANY_ID, PCI_ANY_ID, },
11290         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
11291                 PCI_ANY_ID, PCI_ANY_ID, },
11292         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
11293                 PCI_ANY_ID, PCI_ANY_ID, },
11294         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
11295                 PCI_ANY_ID, PCI_ANY_ID, },
11296         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
11297                 PCI_ANY_ID, PCI_ANY_ID, },
11298         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
11299                 PCI_ANY_ID, PCI_ANY_ID, },
11300         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
11301                 PCI_ANY_ID, PCI_ANY_ID, },
11302         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
11303                 PCI_ANY_ID, PCI_ANY_ID, },
11304         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
11305                 PCI_ANY_ID, PCI_ANY_ID, },
11306         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
11307                 PCI_ANY_ID, PCI_ANY_ID, },
11308         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
11309                 PCI_ANY_ID, PCI_ANY_ID, },
11310         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
11311                 PCI_ANY_ID, PCI_ANY_ID, },
11312         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
11313                 PCI_ANY_ID, PCI_ANY_ID, },
11314         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
11315                 PCI_ANY_ID, PCI_ANY_ID, },
11316         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
11317                 PCI_ANY_ID, PCI_ANY_ID, },
11318         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
11319                 PCI_ANY_ID, PCI_ANY_ID, },
11320         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
11321                 PCI_ANY_ID, PCI_ANY_ID, },
11322         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
11323                 PCI_ANY_ID, PCI_ANY_ID, },
11324         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
11325                 PCI_ANY_ID, PCI_ANY_ID, },
11326         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
11327                 PCI_ANY_ID, PCI_ANY_ID, },
11328         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
11329                 PCI_ANY_ID, PCI_ANY_ID, },
11330         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
11331                 PCI_ANY_ID, PCI_ANY_ID, },
11332         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
11333                 PCI_ANY_ID, PCI_ANY_ID, },
11334         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
11335                 PCI_ANY_ID, PCI_ANY_ID, },
11336         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
11337                 PCI_ANY_ID, PCI_ANY_ID, },
11338         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
11339                 PCI_ANY_ID, PCI_ANY_ID, },
11340         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
11341                 PCI_ANY_ID, PCI_ANY_ID, },
11342         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
11343                 PCI_ANY_ID, PCI_ANY_ID, },
11344         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
11345                 PCI_ANY_ID, PCI_ANY_ID, },
11346         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
11347                 PCI_ANY_ID, PCI_ANY_ID, },
11348         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
11349                 PCI_ANY_ID, PCI_ANY_ID, },
11350         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
11351                 PCI_ANY_ID, PCI_ANY_ID, },
11352         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
11353                 PCI_ANY_ID, PCI_ANY_ID, },
11354         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
11355                 PCI_ANY_ID, PCI_ANY_ID, },
11356         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
11357                 PCI_ANY_ID, PCI_ANY_ID, },
11358         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
11359                 PCI_ANY_ID, PCI_ANY_ID, },
11360         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
11361                 PCI_ANY_ID, PCI_ANY_ID, },
11362         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
11363                 PCI_ANY_ID, PCI_ANY_ID, },
11364         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_G6_FC,
11365                 PCI_ANY_ID, PCI_ANY_ID, },
11366         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK,
11367                 PCI_ANY_ID, PCI_ANY_ID, },
11368         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SKYHAWK_VF,
11369                 PCI_ANY_ID, PCI_ANY_ID, },
11370         { 0 }
11371 };
11372
11373 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
11374
11375 static const struct pci_error_handlers lpfc_err_handler = {
11376         .error_detected = lpfc_io_error_detected,
11377         .slot_reset = lpfc_io_slot_reset,
11378         .resume = lpfc_io_resume,
11379 };
11380
11381 static struct pci_driver lpfc_driver = {
11382         .name           = LPFC_DRIVER_NAME,
11383         .id_table       = lpfc_id_table,
11384         .probe          = lpfc_pci_probe_one,
11385         .remove         = lpfc_pci_remove_one,
11386         .suspend        = lpfc_pci_suspend_one,
11387         .resume         = lpfc_pci_resume_one,
11388         .err_handler    = &lpfc_err_handler,
11389 };
11390
11391 static const struct file_operations lpfc_mgmt_fop = {
11392         .owner = THIS_MODULE,
11393 };
11394
11395 static struct miscdevice lpfc_mgmt_dev = {
11396         .minor = MISC_DYNAMIC_MINOR,
11397         .name = "lpfcmgmt",
11398         .fops = &lpfc_mgmt_fop,
11399 };
11400
11401 /**
11402  * lpfc_init - lpfc module initialization routine
11403  *
11404  * This routine is to be invoked when the lpfc module is loaded into the
11405  * kernel. The special kernel macro module_init() is used to indicate the
11406  * role of this routine to the kernel as lpfc module entry point.
11407  *
11408  * Return codes
11409  *   0 - successful
11410  *   -ENOMEM - FC attach transport failed
11411  *   all others - failed
11412  */
11413 static int __init
11414 lpfc_init(void)
11415 {
11416         int cpu;
11417         int error = 0;
11418
11419         printk(LPFC_MODULE_DESC "\n");
11420         printk(LPFC_COPYRIGHT "\n");
11421
11422         error = misc_register(&lpfc_mgmt_dev);
11423         if (error)
11424                 printk(KERN_ERR "Could not register lpfcmgmt device, "
11425                         "misc_register returned with status %d", error);
11426
11427         if (lpfc_enable_npiv) {
11428                 lpfc_transport_functions.vport_create = lpfc_vport_create;
11429                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
11430         }
11431         lpfc_transport_template =
11432                                 fc_attach_transport(&lpfc_transport_functions);
11433         if (lpfc_transport_template == NULL)
11434                 return -ENOMEM;
11435         if (lpfc_enable_npiv) {
11436                 lpfc_vport_transport_template =
11437                         fc_attach_transport(&lpfc_vport_transport_functions);
11438                 if (lpfc_vport_transport_template == NULL) {
11439                         fc_release_transport(lpfc_transport_template);
11440                         return -ENOMEM;
11441                 }
11442         }
11443
11444         /* Initialize in case vector mapping is needed */
11445         lpfc_used_cpu = NULL;
11446         lpfc_present_cpu = 0;
11447         for_each_present_cpu(cpu)
11448                 lpfc_present_cpu++;
11449
11450         error = pci_register_driver(&lpfc_driver);
11451         if (error) {
11452                 fc_release_transport(lpfc_transport_template);
11453                 if (lpfc_enable_npiv)
11454                         fc_release_transport(lpfc_vport_transport_template);
11455         }
11456
11457         return error;
11458 }
11459
11460 /**
11461  * lpfc_exit - lpfc module removal routine
11462  *
11463  * This routine is invoked when the lpfc module is removed from the kernel.
11464  * The special kernel macro module_exit() is used to indicate the role of
11465  * this routine to the kernel as lpfc module exit point.
11466  */
11467 static void __exit
11468 lpfc_exit(void)
11469 {
11470         misc_deregister(&lpfc_mgmt_dev);
11471         pci_unregister_driver(&lpfc_driver);
11472         fc_release_transport(lpfc_transport_template);
11473         if (lpfc_enable_npiv)
11474                 fc_release_transport(lpfc_vport_transport_template);
11475         if (_dump_buf_data) {
11476                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
11477                                 "_dump_buf_data at 0x%p\n",
11478                                 (1L << _dump_buf_data_order), _dump_buf_data);
11479                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
11480         }
11481
11482         if (_dump_buf_dif) {
11483                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
11484                                 "_dump_buf_dif at 0x%p\n",
11485                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
11486                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
11487         }
11488         kfree(lpfc_used_cpu);
11489         idr_destroy(&lpfc_hba_index);
11490 }
11491
11492 module_init(lpfc_init);
11493 module_exit(lpfc_exit);
11494 MODULE_LICENSE("GPL");
11495 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
11496 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
11497 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);