drivers/scsi/qla2xxx/qla_isr.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2014 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8 #include "qla_target.h"
   9
  10 #include <linux/delay.h>
  11 #include <linux/slab.h>
  12 #include <linux/cpu.h>
  13 #include <linux/t10-pi.h>
  14 #include <scsi/scsi_tcq.h>
  15 #include <scsi/scsi_bsg_fc.h>
  16 #include <scsi/scsi_eh.h>
  17 #include <scsi/fc/fc_fs.h>
  18 #include <linux/nvme-fc-driver.h>
  19
  20 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
  21 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
  22 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
  23 static int qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
  24         sts_entry_t *);
  25
  26 const char *const port_state_str[] = {
  27         "Unknown",
  28         "UNCONFIGURED",
  29         "DEAD",
  30         "LOST",
  31         "ONLINE"
  32 };
  33
  34 static void qla24xx_purex_iocb(scsi_qla_host_t *vha, void *pkt,
  35         void (*process_item)(struct scsi_qla_host *vha, void *pkt))
  36 {
  37         struct purex_list *list = &vha->purex_list;
  38         struct purex_item *item;
  39         ulong flags;
  40
  41         item = kzalloc(sizeof(*item), GFP_KERNEL);
  42         if (!item) {
  43                 ql_log(ql_log_warn, vha, 0x5092,
  44                     ">> Failed allocate purex list item.\n");
  45                 return;
  46         }
  47
  48         item->vha = vha;
  49         item->process_item = process_item;
  50         memcpy(&item->iocb, pkt, sizeof(item->iocb));
  51
  52         spin_lock_irqsave(&list->lock, flags);
  53         list_add_tail(&item->list, &list->head);
  54         spin_unlock_irqrestore(&list->lock, flags);
  55
  56         set_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
  57 }
  58
  59 static void
  60 qla24xx_process_abts(struct scsi_qla_host *vha, void *pkt)
  61 {
  62         struct abts_entry_24xx *abts = pkt;
  63         struct qla_hw_data *ha = vha->hw;
  64         struct els_entry_24xx *rsp_els;
  65         struct abts_entry_24xx *abts_rsp;
  66         dma_addr_t dma;
  67         uint32_t fctl;
  68         int rval;
  69
  70         ql_dbg(ql_dbg_init, vha, 0x0286, "%s: entered.\n", __func__);
  71
  72         ql_log(ql_log_warn, vha, 0x0287,
  73             "Processing ABTS xchg=%#x oxid=%#x rxid=%#x seqid=%#x seqcnt=%#x\n",
  74             abts->rx_xch_addr_to_abort, abts->ox_id, abts->rx_id,
  75             abts->seq_id, abts->seq_cnt);
  76         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  77             "-------- ABTS RCV -------\n");
  78         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  79             (uint8_t *)abts, sizeof(*abts));
  80
  81         rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els), &dma,
  82             GFP_KERNEL);
  83         if (!rsp_els) {
  84                 ql_log(ql_log_warn, vha, 0x0287,
  85                     "Failed allocate dma buffer ABTS/ELS RSP.\n");
  86                 return;
  87         }
  88
  89         /* terminate exchange */
  90         rsp_els->entry_type = ELS_IOCB_TYPE;
  91         rsp_els->entry_count = 1;
  92         rsp_els->nport_handle = cpu_to_le16(~0);
  93         rsp_els->rx_xchg_address = abts->rx_xch_addr_to_abort;
  94         rsp_els->control_flags = cpu_to_le16(EPD_RX_XCHG);
  95         ql_dbg(ql_dbg_init, vha, 0x0283,
  96             "Sending ELS Response to terminate exchange %#x...\n",
  97             abts->rx_xch_addr_to_abort);
  98         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
  99             "-------- ELS RSP -------\n");
 100         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 101             (uint8_t *)rsp_els, sizeof(*rsp_els));
 102         rval = qla2x00_issue_iocb(vha, rsp_els, dma, 0);
 103         if (rval) {
 104                 ql_log(ql_log_warn, vha, 0x0288,
 105                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 106         } else if (rsp_els->comp_status) {
 107                 ql_log(ql_log_warn, vha, 0x0289,
 108                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 109                     __func__, rsp_els->comp_status,
 110                     rsp_els->error_subcode_1, rsp_els->error_subcode_2);
 111         } else {
 112                 ql_dbg(ql_dbg_init, vha, 0x028a,
 113                     "%s: abort exchange done.\n", __func__);
 114         }
 115
 116         /* send ABTS response */
 117         abts_rsp = (void *)rsp_els;
 118         memset(abts_rsp, 0, sizeof(*abts_rsp));
 119         abts_rsp->entry_type = ABTS_RSP_TYPE;
 120         abts_rsp->entry_count = 1;
 121         abts_rsp->nport_handle = abts->nport_handle;
 122         abts_rsp->vp_idx = abts->vp_idx;
 123         abts_rsp->sof_type = abts->sof_type & 0xf0;
 124         abts_rsp->rx_xch_addr = abts->rx_xch_addr;
 125         abts_rsp->d_id[0] = abts->s_id[0];
 126         abts_rsp->d_id[1] = abts->s_id[1];
 127         abts_rsp->d_id[2] = abts->s_id[2];
 128         abts_rsp->r_ctl = FC_ROUTING_BLD | FC_R_CTL_BLD_BA_ACC;
 129         abts_rsp->s_id[0] = abts->d_id[0];
 130         abts_rsp->s_id[1] = abts->d_id[1];
 131         abts_rsp->s_id[2] = abts->d_id[2];
 132         abts_rsp->cs_ctl = abts->cs_ctl;
 133         /* include flipping bit23 in fctl */
 134         fctl = ~(abts->f_ctl[2] | 0x7F) << 16 |
 135             FC_F_CTL_LAST_SEQ | FC_F_CTL_END_SEQ | FC_F_CTL_SEQ_INIT;
 136         abts_rsp->f_ctl[0] = fctl >> 0 & 0xff;
 137         abts_rsp->f_ctl[1] = fctl >> 8 & 0xff;
 138         abts_rsp->f_ctl[2] = fctl >> 16 & 0xff;
 139         abts_rsp->type = FC_TYPE_BLD;
 140         abts_rsp->rx_id = abts->rx_id;
 141         abts_rsp->ox_id = abts->ox_id;
 142         abts_rsp->payload.ba_acc.aborted_rx_id = abts->rx_id;
 143         abts_rsp->payload.ba_acc.aborted_ox_id = abts->ox_id;
 144         abts_rsp->payload.ba_acc.high_seq_cnt = cpu_to_le16(~0);
 145         abts_rsp->rx_xch_addr_to_abort = abts->rx_xch_addr_to_abort;
 146         ql_dbg(ql_dbg_init, vha, 0x028b,
 147             "Sending BA ACC response to ABTS %#x...\n",
 148             abts->rx_xch_addr_to_abort);
 149         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 150             "-------- ELS RSP -------\n");
 151         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 152             (uint8_t *)abts_rsp, sizeof(*abts_rsp));
 153         rval = qla2x00_issue_iocb(vha, abts_rsp, dma, 0);
 154         if (rval) {
 155                 ql_log(ql_log_warn, vha, 0x028c,
 156                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 157         } else if (abts_rsp->comp_status) {
 158                 ql_log(ql_log_warn, vha, 0x028d,
 159                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 160                     __func__, abts_rsp->comp_status,
 161                     abts_rsp->payload.error.subcode1,
 162                     abts_rsp->payload.error.subcode2);
 163         } else {
 164                 ql_dbg(ql_dbg_init, vha, 0x028ea,
 165                     "%s: done.\n", __func__);
 166         }
 167
 168         dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, dma);
 169 }
 170
 171 /**
 172  * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
 173  * @irq: interrupt number
 174  * @dev_id: SCSI driver HA context
 175  *
 176  * Called by system whenever the host adapter generates an interrupt.
 177  *
 178  * Returns handled flag.
 179  */
 180 irqreturn_t
 181 qla2100_intr_handler(int irq, void *dev_id)
 182 {
 183         scsi_qla_host_t *vha;
 184         struct qla_hw_data *ha;
 185         struct device_reg_2xxx __iomem *reg;
 186         int             status;
 187         unsigned long   iter;
 188         uint16_t        hccr;
 189         uint16_t        mb[8];
 190         struct rsp_que *rsp;
 191         unsigned long   flags;
 192
 193         rsp = (struct rsp_que *) dev_id;
 194         if (!rsp) {
 195                 ql_log(ql_log_info, NULL, 0x505d,
 196                     "%s: NULL response queue pointer.\n", __func__);
 197                 return (IRQ_NONE);
 198         }
 199
 200         ha = rsp->hw;
 201         reg = &ha->iobase->isp;
 202         status = 0;
 203
 204         spin_lock_irqsave(&ha->hardware_lock, flags);
 205         vha = pci_get_drvdata(ha->pdev);
 206         for (iter = 50; iter--; ) {
 207                 hccr = rd_reg_word(&reg->hccr);
 208                 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
 209                         break;
 210                 if (hccr & HCCR_RISC_PAUSE) {
 211                         if (pci_channel_offline(ha->pdev))
 212                                 break;
 213
 214                         /*
 215                          * Issue a "HARD" reset in order for the RISC interrupt
 216                          * bit to be cleared.  Schedule a big hammer to get
 217                          * out of the RISC PAUSED state.
 218                          */
 219                         wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 220                         rd_reg_word(&reg->hccr);
 221
 222                         ha->isp_ops->fw_dump(vha);
 223                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 224                         break;
 225                 } else if ((rd_reg_word(&reg->istatus) & ISR_RISC_INT) == 0)
 226                         break;
 227
 228                 if (rd_reg_word(&reg->semaphore) & BIT_0) {
 229                         wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 230                         rd_reg_word(&reg->hccr);
 231
 232                         /* Get mailbox data. */
 233                         mb[0] = RD_MAILBOX_REG(ha, reg, 0);
 234                         if (mb[0] > 0x3fff && mb[0] < 0x8000) {
 235                                 qla2x00_mbx_completion(vha, mb[0]);
 236                                 status |= MBX_INTERRUPT;
 237                         } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
 238                                 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 239                                 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 240                                 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 241                                 qla2x00_async_event(vha, rsp, mb);
 242                         } else {
 243                                 /*EMPTY*/
 244                                 ql_dbg(ql_dbg_async, vha, 0x5025,
 245                                     "Unrecognized interrupt type (%d).\n",
 246                                     mb[0]);
 247                         }
 248                         /* Release mailbox registers. */
 249                         wrt_reg_word(&reg->semaphore, 0);
 250                         rd_reg_word(&reg->semaphore);
 251                 } else {
 252                         qla2x00_process_response_queue(rsp);
 253
 254                         wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 255                         rd_reg_word(&reg->hccr);
 256                 }
 257         }
 258         qla2x00_handle_mbx_completion(ha, status);
 259         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 260
 261         return (IRQ_HANDLED);
 262 }
 263
 264 bool
 265 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
 266 {
 267         /* Check for PCI disconnection */
 268         if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
 269                 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
 270                     !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
 271                     !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
 272                         /*
 273                          * Schedule this (only once) on the default system
 274                          * workqueue so that all the adapter workqueues and the
 275                          * DPC thread can be shutdown cleanly.
 276                          */
 277                         schedule_work(&vha->hw->board_disable);
 278                 }
 279                 return true;
 280         } else
 281                 return false;
 282 }
 283
 284 bool
 285 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
 286 {
 287         return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
 288 }
 289
 290 /**
 291  * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 292  * @irq: interrupt number
 293  * @dev_id: SCSI driver HA context
 294  *
 295  * Called by system whenever the host adapter generates an interrupt.
 296  *
 297  * Returns handled flag.
 298  */
 299 irqreturn_t
 300 qla2300_intr_handler(int irq, void *dev_id)
 301 {
 302         scsi_qla_host_t *vha;
 303         struct device_reg_2xxx __iomem *reg;
 304         int             status;
 305         unsigned long   iter;
 306         uint32_t        stat;
 307         uint16_t        hccr;
 308         uint16_t        mb[8];
 309         struct rsp_que *rsp;
 310         struct qla_hw_data *ha;
 311         unsigned long   flags;
 312
 313         rsp = (struct rsp_que *) dev_id;
 314         if (!rsp) {
 315                 ql_log(ql_log_info, NULL, 0x5058,
 316                     "%s: NULL response queue pointer.\n", __func__);
 317                 return (IRQ_NONE);
 318         }
 319
 320         ha = rsp->hw;
 321         reg = &ha->iobase->isp;
 322         status = 0;
 323
 324         spin_lock_irqsave(&ha->hardware_lock, flags);
 325         vha = pci_get_drvdata(ha->pdev);
 326         for (iter = 50; iter--; ) {
 327                 stat = rd_reg_dword(&reg->u.isp2300.host_status);
 328                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
 329                         break;
 330                 if (stat & HSR_RISC_PAUSED) {
 331                         if (unlikely(pci_channel_offline(ha->pdev)))
 332                                 break;
 333
 334                         hccr = rd_reg_word(&reg->hccr);
 335
 336                         if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
 337                                 ql_log(ql_log_warn, vha, 0x5026,
 338                                     "Parity error -- HCCR=%x, Dumping "
 339                                     "firmware.\n", hccr);
 340                         else
 341                                 ql_log(ql_log_warn, vha, 0x5027,
 342                                     "RISC paused -- HCCR=%x, Dumping "
 343                                     "firmware.\n", hccr);
 344
 345                         /*
 346                          * Issue a "HARD" reset in order for the RISC
 347                          * interrupt bit to be cleared.  Schedule a big
 348                          * hammer to get out of the RISC PAUSED state.
 349                          */
 350                         wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 351                         rd_reg_word(&reg->hccr);
 352
 353                         ha->isp_ops->fw_dump(vha);
 354                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 355                         break;
 356                 } else if ((stat & HSR_RISC_INT) == 0)
 357                         break;
 358
 359                 switch (stat & 0xff) {
 360                 case 0x1:
 361                 case 0x2:
 362                 case 0x10:
 363                 case 0x11:
 364                         qla2x00_mbx_completion(vha, MSW(stat));
 365                         status |= MBX_INTERRUPT;
 366
 367                         /* Release mailbox registers. */
 368                         wrt_reg_word(&reg->semaphore, 0);
 369                         break;
 370                 case 0x12:
 371                         mb[0] = MSW(stat);
 372                         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 373                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 374                         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 375                         qla2x00_async_event(vha, rsp, mb);
 376                         break;
 377                 case 0x13:
 378                         qla2x00_process_response_queue(rsp);
 379                         break;
 380                 case 0x15:
 381                         mb[0] = MBA_CMPLT_1_16BIT;
 382                         mb[1] = MSW(stat);
 383                         qla2x00_async_event(vha, rsp, mb);
 384                         break;
 385                 case 0x16:
 386                         mb[0] = MBA_SCSI_COMPLETION;
 387                         mb[1] = MSW(stat);
 388                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 389                         qla2x00_async_event(vha, rsp, mb);
 390                         break;
 391                 default:
 392                         ql_dbg(ql_dbg_async, vha, 0x5028,
 393                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
 394                         break;
 395                 }
 396                 wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 397                 rd_reg_word_relaxed(&reg->hccr);
 398         }
 399         qla2x00_handle_mbx_completion(ha, status);
 400         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 401
 402         return (IRQ_HANDLED);
 403 }
 404
 405 /**
 406  * qla2x00_mbx_completion() - Process mailbox command completions.
 407  * @vha: SCSI driver HA context
 408  * @mb0: Mailbox0 register
 409  */
 410 static void
 411 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 412 {
 413         uint16_t        cnt;
 414         uint32_t        mboxes;
 415         __le16 __iomem *wptr;
 416         struct qla_hw_data *ha = vha->hw;
 417         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 418
 419         /* Read all mbox registers? */
 420         WARN_ON_ONCE(ha->mbx_count > 32);
 421         mboxes = (1ULL << ha->mbx_count) - 1;
 422         if (!ha->mcp)
 423                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 424         else
 425                 mboxes = ha->mcp->in_mb;
 426
 427         /* Load return mailbox registers. */
 428         ha->flags.mbox_int = 1;
 429         ha->mailbox_out[0] = mb0;
 430         mboxes >>= 1;
 431         wptr = MAILBOX_REG(ha, reg, 1);
 432
 433         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 434                 if (IS_QLA2200(ha) && cnt == 8)
 435                         wptr = MAILBOX_REG(ha, reg, 8);
 436                 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 437                         ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 438                 else if (mboxes & BIT_0)
 439                         ha->mailbox_out[cnt] = rd_reg_word(wptr);
 440
 441                 wptr++;
 442                 mboxes >>= 1;
 443         }
 444 }
 445
 446 static void
 447 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 448 {
 449         static char *event[] =
 450                 { "Complete", "Request Notification", "Time Extension" };
 451         int rval;
 452         struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 453         struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 454         __le16 __iomem *wptr;
 455         uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 456
 457         /* Seed data -- mailbox1 -> mailbox7. */
 458         if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 459                 wptr = &reg24->mailbox1;
 460         else if (IS_QLA8044(vha->hw))
 461                 wptr = &reg82->mailbox_out[1];
 462         else
 463                 return;
 464
 465         for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 466                 mb[cnt] = rd_reg_word(wptr);
 467
 468         ql_dbg(ql_dbg_async, vha, 0x5021,
 469             "Inter-Driver Communication %s -- "
 470             "%04x %04x %04x %04x %04x %04x %04x.\n",
 471             event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 472             mb[4], mb[5], mb[6]);
 473         switch (aen) {
 474         /* Handle IDC Error completion case. */
 475         case MBA_IDC_COMPLETE:
 476                 if (mb[1] >> 15) {
 477                         vha->hw->flags.idc_compl_status = 1;
 478                         if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 479                                 complete(&vha->hw->dcbx_comp);
 480                 }
 481                 break;
 482
 483         case MBA_IDC_NOTIFY:
 484                 /* Acknowledgement needed? [Notify && non-zero timeout]. */
 485                 timeout = (descr >> 8) & 0xf;
 486                 ql_dbg(ql_dbg_async, vha, 0x5022,
 487                     "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 488                     vha->host_no, event[aen & 0xff], timeout);
 489
 490                 if (!timeout)
 491                         return;
 492                 rval = qla2x00_post_idc_ack_work(vha, mb);
 493                 if (rval != QLA_SUCCESS)
 494                         ql_log(ql_log_warn, vha, 0x5023,
 495                             "IDC failed to post ACK.\n");
 496                 break;
 497         case MBA_IDC_TIME_EXT:
 498                 vha->hw->idc_extend_tmo = descr;
 499                 ql_dbg(ql_dbg_async, vha, 0x5087,
 500                     "%lu Inter-Driver Communication %s -- "
 501                     "Extend timeout by=%d.\n",
 502                     vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 503                 break;
 504         }
 505 }
 506
 507 #define LS_UNKNOWN      2
 508 const char *
 509 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 510 {
 511         static const char *const link_speeds[] = {
 512                 "1", "2", "?", "4", "8", "16", "32", "10"
 513         };
 514 #define QLA_LAST_SPEED (ARRAY_SIZE(link_speeds) - 1)
 515
 516         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 517                 return link_speeds[0];
 518         else if (speed == 0x13)
 519                 return link_speeds[QLA_LAST_SPEED];
 520         else if (speed < QLA_LAST_SPEED)
 521                 return link_speeds[speed];
 522         else
 523                 return link_speeds[LS_UNKNOWN];
 524 }
 525
 526 static void
 527 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 528 {
 529         struct qla_hw_data *ha = vha->hw;
 530
 531         /*
 532          * 8200 AEN Interpretation:
 533          * mb[0] = AEN code
 534          * mb[1] = AEN Reason code
 535          * mb[2] = LSW of Peg-Halt Status-1 Register
 536          * mb[6] = MSW of Peg-Halt Status-1 Register
 537          * mb[3] = LSW of Peg-Halt Status-2 register
 538          * mb[7] = MSW of Peg-Halt Status-2 register
 539          * mb[4] = IDC Device-State Register value
 540          * mb[5] = IDC Driver-Presence Register value
 541          */
 542         ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 543             "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 544             mb[0], mb[1], mb[2], mb[6]);
 545         ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 546             "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 547             "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 548
 549         if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 550                                 IDC_HEARTBEAT_FAILURE)) {
 551                 ha->flags.nic_core_hung = 1;
 552                 ql_log(ql_log_warn, vha, 0x5060,
 553                     "83XX: F/W Error Reported: Check if reset required.\n");
 554
 555                 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 556                         uint32_t protocol_engine_id, fw_err_code, err_level;
 557
 558                         /*
 559                          * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 560                          *  - PEG-Halt Status-1 Register:
 561                          *      (LSW = mb[2], MSW = mb[6])
 562                          *      Bits 0-7   = protocol-engine ID
 563                          *      Bits 8-28  = f/w error code
 564                          *      Bits 29-31 = Error-level
 565                          *          Error-level 0x1 = Non-Fatal error
 566                          *          Error-level 0x2 = Recoverable Fatal error
 567                          *          Error-level 0x4 = UnRecoverable Fatal error
 568                          *  - PEG-Halt Status-2 Register:
 569                          *      (LSW = mb[3], MSW = mb[7])
 570                          */
 571                         protocol_engine_id = (mb[2] & 0xff);
 572                         fw_err_code = (((mb[2] & 0xff00) >> 8) |
 573                             ((mb[6] & 0x1fff) << 8));
 574                         err_level = ((mb[6] & 0xe000) >> 13);
 575                         ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 576                             "Register: protocol_engine_id=0x%x "
 577                             "fw_err_code=0x%x err_level=0x%x.\n",
 578                             protocol_engine_id, fw_err_code, err_level);
 579                         ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 580                             "Register: 0x%x%x.\n", mb[7], mb[3]);
 581                         if (err_level == ERR_LEVEL_NON_FATAL) {
 582                                 ql_log(ql_log_warn, vha, 0x5063,
 583                                     "Not a fatal error, f/w has recovered itself.\n");
 584                         } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 585                                 ql_log(ql_log_fatal, vha, 0x5064,
 586                                     "Recoverable Fatal error: Chip reset "
 587                                     "required.\n");
 588                                 qla83xx_schedule_work(vha,
 589                                     QLA83XX_NIC_CORE_RESET);
 590                         } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 591                                 ql_log(ql_log_fatal, vha, 0x5065,
 592                                     "Unrecoverable Fatal error: Set FAILED "
 593                                     "state, reboot required.\n");
 594                                 qla83xx_schedule_work(vha,
 595                                     QLA83XX_NIC_CORE_UNRECOVERABLE);
 596                         }
 597                 }
 598
 599                 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 600                         uint16_t peg_fw_state, nw_interface_link_up;
 601                         uint16_t nw_interface_signal_detect, sfp_status;
 602                         uint16_t htbt_counter, htbt_monitor_enable;
 603                         uint16_t sfp_additional_info, sfp_multirate;
 604                         uint16_t sfp_tx_fault, link_speed, dcbx_status;
 605
 606                         /*
 607                          * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 608                          *  - PEG-to-FC Status Register:
 609                          *      (LSW = mb[2], MSW = mb[6])
 610                          *      Bits 0-7   = Peg-Firmware state
 611                          *      Bit 8      = N/W Interface Link-up
 612                          *      Bit 9      = N/W Interface signal detected
 613                          *      Bits 10-11 = SFP Status
 614                          *        SFP Status 0x0 = SFP+ transceiver not expected
 615                          *        SFP Status 0x1 = SFP+ transceiver not present
 616                          *        SFP Status 0x2 = SFP+ transceiver invalid
 617                          *        SFP Status 0x3 = SFP+ transceiver present and
 618                          *        valid
 619                          *      Bits 12-14 = Heartbeat Counter
 620                          *      Bit 15     = Heartbeat Monitor Enable
 621                          *      Bits 16-17 = SFP Additional Info
 622                          *        SFP info 0x0 = Unregocnized transceiver for
 623                          *        Ethernet
 624                          *        SFP info 0x1 = SFP+ brand validation failed
 625                          *        SFP info 0x2 = SFP+ speed validation failed
 626                          *        SFP info 0x3 = SFP+ access error
 627                          *      Bit 18     = SFP Multirate
 628                          *      Bit 19     = SFP Tx Fault
 629                          *      Bits 20-22 = Link Speed
 630                          *      Bits 23-27 = Reserved
 631                          *      Bits 28-30 = DCBX Status
 632                          *        DCBX Status 0x0 = DCBX Disabled
 633                          *        DCBX Status 0x1 = DCBX Enabled
 634                          *        DCBX Status 0x2 = DCBX Exchange error
 635                          *      Bit 31     = Reserved
 636                          */
 637                         peg_fw_state = (mb[2] & 0x00ff);
 638                         nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 639                         nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 640                         sfp_status = ((mb[2] & 0x0c00) >> 10);
 641                         htbt_counter = ((mb[2] & 0x7000) >> 12);
 642                         htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 643                         sfp_additional_info = (mb[6] & 0x0003);
 644                         sfp_multirate = ((mb[6] & 0x0004) >> 2);
 645                         sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 646                         link_speed = ((mb[6] & 0x0070) >> 4);
 647                         dcbx_status = ((mb[6] & 0x7000) >> 12);
 648
 649                         ql_log(ql_log_warn, vha, 0x5066,
 650                             "Peg-to-Fc Status Register:\n"
 651                             "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 652                             "nw_interface_signal_detect=0x%x"
 653                             "\nsfp_statis=0x%x.\n ", peg_fw_state,
 654                             nw_interface_link_up, nw_interface_signal_detect,
 655                             sfp_status);
 656                         ql_log(ql_log_warn, vha, 0x5067,
 657                             "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 658                             "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
 659                             htbt_counter, htbt_monitor_enable,
 660                             sfp_additional_info, sfp_multirate);
 661                         ql_log(ql_log_warn, vha, 0x5068,
 662                             "sfp_tx_fault=0x%x, link_state=0x%x, "
 663                             "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 664                             dcbx_status);
 665
 666                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 667                 }
 668
 669                 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 670                         ql_log(ql_log_warn, vha, 0x5069,
 671                             "Heartbeat Failure encountered, chip reset "
 672                             "required.\n");
 673
 674                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 675                 }
 676         }
 677
 678         if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 679                 ql_log(ql_log_info, vha, 0x506a,
 680                     "IDC Device-State changed = 0x%x.\n", mb[4]);
 681                 if (ha->flags.nic_core_reset_owner)
 682                         return;
 683                 qla83xx_schedule_work(vha, MBA_IDC_AEN);
 684         }
 685 }
 686
 687 int
 688 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 689 {
 690         struct qla_hw_data *ha = vha->hw;
 691         scsi_qla_host_t *vp;
 692         uint32_t vp_did;
 693         unsigned long flags;
 694         int ret = 0;
 695
 696         if (!ha->num_vhosts)
 697                 return ret;
 698
 699         spin_lock_irqsave(&ha->vport_slock, flags);
 700         list_for_each_entry(vp, &ha->vp_list, list) {
 701                 vp_did = vp->d_id.b24;
 702                 if (vp_did == rscn_entry) {
 703                         ret = 1;
 704                         break;
 705                 }
 706         }
 707         spin_unlock_irqrestore(&ha->vport_slock, flags);
 708
 709         return ret;
 710 }
 711
 712 fc_port_t *
 713 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
 714 {
 715         fc_port_t *f, *tf;
 716
 717         f = tf = NULL;
 718         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
 719                 if (f->loop_id == loop_id)
 720                         return f;
 721         return NULL;
 722 }
 723
 724 fc_port_t *
 725 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
 726 {
 727         fc_port_t *f, *tf;
 728
 729         f = tf = NULL;
 730         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 731                 if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
 732                         if (incl_deleted)
 733                                 return f;
 734                         else if (f->deleted == 0)
 735                                 return f;
 736                 }
 737         }
 738         return NULL;
 739 }
 740
 741 fc_port_t *
 742 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
 743         u8 incl_deleted)
 744 {
 745         fc_port_t *f, *tf;
 746
 747         f = tf = NULL;
 748         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 749                 if (f->d_id.b24 == id->b24) {
 750                         if (incl_deleted)
 751                                 return f;
 752                         else if (f->deleted == 0)
 753                                 return f;
 754                 }
 755         }
 756         return NULL;
 757 }
 758
 759 /* Shall be called only on supported adapters. */
 760 static void
 761 qla27xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 762 {
 763         struct qla_hw_data *ha = vha->hw;
 764         bool reset_isp_needed = 0;
 765
 766         ql_log(ql_log_warn, vha, 0x02f0,
 767                "MPI Heartbeat stop. MPI reset is%s needed. "
 768                "MB0[%xh] MB1[%xh] MB2[%xh] MB3[%xh]\n",
 769                mb[0] & BIT_8 ? "" : " not",
 770                mb[0], mb[1], mb[2], mb[3]);
 771
 772         if ((mb[1] & BIT_8) == 0)
 773                 return;
 774
 775         ql_log(ql_log_warn, vha, 0x02f1,
 776                "MPI Heartbeat stop. FW dump needed\n");
 777
 778         if (ql2xfulldump_on_mpifail) {
 779                 ha->isp_ops->fw_dump(vha);
 780                 reset_isp_needed = 1;
 781         }
 782
 783         ha->isp_ops->mpi_fw_dump(vha, 1);
 784
 785         if (reset_isp_needed) {
 786                 vha->hw->flags.fw_init_done = 0;
 787                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 788                 qla2xxx_wake_dpc(vha);
 789         }
 790 }
 791
 792 /**
 793  * qla2x00_async_event() - Process aynchronous events.
 794  * @vha: SCSI driver HA context
 795  * @rsp: response queue
 796  * @mb: Mailbox registers (0 - 3)
 797  */
 798 void
 799 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
 800 {
 801         uint16_t        handle_cnt;
 802         uint16_t        cnt, mbx;
 803         uint32_t        handles[5];
 804         struct qla_hw_data *ha = vha->hw;
 805         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 806         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
 807         struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 808         uint32_t        rscn_entry, host_pid;
 809         unsigned long   flags;
 810         fc_port_t       *fcport = NULL;
 811
 812         if (!vha->hw->flags.fw_started)
 813                 return;
 814
 815         /* Setup to process RIO completion. */
 816         handle_cnt = 0;
 817         if (IS_CNA_CAPABLE(ha))
 818                 goto skip_rio;
 819         switch (mb[0]) {
 820         case MBA_SCSI_COMPLETION:
 821                 handles[0] = make_handle(mb[2], mb[1]);
 822                 handle_cnt = 1;
 823                 break;
 824         case MBA_CMPLT_1_16BIT:
 825                 handles[0] = mb[1];
 826                 handle_cnt = 1;
 827                 mb[0] = MBA_SCSI_COMPLETION;
 828                 break;
 829         case MBA_CMPLT_2_16BIT:
 830                 handles[0] = mb[1];
 831                 handles[1] = mb[2];
 832                 handle_cnt = 2;
 833                 mb[0] = MBA_SCSI_COMPLETION;
 834                 break;
 835         case MBA_CMPLT_3_16BIT:
 836                 handles[0] = mb[1];
 837                 handles[1] = mb[2];
 838                 handles[2] = mb[3];
 839                 handle_cnt = 3;
 840                 mb[0] = MBA_SCSI_COMPLETION;
 841                 break;
 842         case MBA_CMPLT_4_16BIT:
 843                 handles[0] = mb[1];
 844                 handles[1] = mb[2];
 845                 handles[2] = mb[3];
 846                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 847                 handle_cnt = 4;
 848                 mb[0] = MBA_SCSI_COMPLETION;
 849                 break;
 850         case MBA_CMPLT_5_16BIT:
 851                 handles[0] = mb[1];
 852                 handles[1] = mb[2];
 853                 handles[2] = mb[3];
 854                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 855                 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
 856                 handle_cnt = 5;
 857                 mb[0] = MBA_SCSI_COMPLETION;
 858                 break;
 859         case MBA_CMPLT_2_32BIT:
 860                 handles[0] = make_handle(mb[2], mb[1]);
 861                 handles[1] = make_handle(RD_MAILBOX_REG(ha, reg, 7),
 862                                          RD_MAILBOX_REG(ha, reg, 6));
 863                 handle_cnt = 2;
 864                 mb[0] = MBA_SCSI_COMPLETION;
 865                 break;
 866         default:
 867                 break;
 868         }
 869 skip_rio:
 870         switch (mb[0]) {
 871         case MBA_SCSI_COMPLETION:       /* Fast Post */
 872                 if (!vha->flags.online)
 873                         break;
 874
 875                 for (cnt = 0; cnt < handle_cnt; cnt++)
 876                         qla2x00_process_completed_request(vha, rsp->req,
 877                                 handles[cnt]);
 878                 break;
 879
 880         case MBA_RESET:                 /* Reset */
 881                 ql_dbg(ql_dbg_async, vha, 0x5002,
 882                     "Asynchronous RESET.\n");
 883
 884                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 885                 break;
 886
 887         case MBA_SYSTEM_ERR:            /* System Error */
 888                 mbx = 0;
 889                 if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
 890                     IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
 891                         u16 m[4];
 892
 893                         m[0] = rd_reg_word(&reg24->mailbox4);
 894                         m[1] = rd_reg_word(&reg24->mailbox5);
 895                         m[2] = rd_reg_word(&reg24->mailbox6);
 896                         mbx = m[3] = rd_reg_word(&reg24->mailbox7);
 897
 898                         ql_log(ql_log_warn, vha, 0x5003,
 899                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh mbx4=%xh mbx5=%xh mbx6=%xh mbx7=%xh.\n",
 900                             mb[1], mb[2], mb[3], m[0], m[1], m[2], m[3]);
 901                 } else
 902                         ql_log(ql_log_warn, vha, 0x5003,
 903                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n ",
 904                             mb[1], mb[2], mb[3]);
 905
 906                 if ((IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
 907                     rd_reg_word(&reg24->mailbox7) & BIT_8)
 908                         ha->isp_ops->mpi_fw_dump(vha, 1);
 909                 ha->isp_ops->fw_dump(vha);
 910                 ha->flags.fw_init_done = 0;
 911                 QLA_FW_STOPPED(ha);
 912
 913                 if (IS_FWI2_CAPABLE(ha)) {
 914                         if (mb[1] == 0 && mb[2] == 0) {
 915                                 ql_log(ql_log_fatal, vha, 0x5004,
 916                                     "Unrecoverable Hardware Error: adapter "
 917                                     "marked OFFLINE!\n");
 918                                 vha->flags.online = 0;
 919                                 vha->device_flags |= DFLG_DEV_FAILED;
 920                         } else {
 921                                 /* Check to see if MPI timeout occurred */
 922                                 if ((mbx & MBX_3) && (ha->port_no == 0))
 923                                         set_bit(MPI_RESET_NEEDED,
 924                                             &vha->dpc_flags);
 925
 926                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 927                         }
 928                 } else if (mb[1] == 0) {
 929                         ql_log(ql_log_fatal, vha, 0x5005,
 930                             "Unrecoverable Hardware Error: adapter marked "
 931                             "OFFLINE!\n");
 932                         vha->flags.online = 0;
 933                         vha->device_flags |= DFLG_DEV_FAILED;
 934                 } else
 935                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 936                 break;
 937
 938         case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
 939                 ql_log(ql_log_warn, vha, 0x5006,
 940                     "ISP Request Transfer Error (%x).\n",  mb[1]);
 941
 942                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 943                 break;
 944
 945         case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
 946                 ql_log(ql_log_warn, vha, 0x5007,
 947                     "ISP Response Transfer Error (%x).\n", mb[1]);
 948
 949                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 950                 break;
 951
 952         case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
 953                 ql_dbg(ql_dbg_async, vha, 0x5008,
 954                     "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
 955                 break;
 956
 957         case MBA_LOOP_INIT_ERR:
 958                 ql_log(ql_log_warn, vha, 0x5090,
 959                     "LOOP INIT ERROR (%x).\n", mb[1]);
 960                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 961                 break;
 962
 963         case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
 964                 ha->flags.lip_ae = 1;
 965
 966                 ql_dbg(ql_dbg_async, vha, 0x5009,
 967                     "LIP occurred (%x).\n", mb[1]);
 968
 969                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 970                         atomic_set(&vha->loop_state, LOOP_DOWN);
 971                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 972                         qla2x00_mark_all_devices_lost(vha);
 973                 }
 974
 975                 if (vha->vp_idx) {
 976                         atomic_set(&vha->vp_state, VP_FAILED);
 977                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 978                 }
 979
 980                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 981                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 982
 983                 vha->flags.management_server_logged_in = 0;
 984                 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
 985                 break;
 986
 987         case MBA_LOOP_UP:               /* Loop Up Event */
 988                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
 989                         ha->link_data_rate = PORT_SPEED_1GB;
 990                 else
 991                         ha->link_data_rate = mb[1];
 992
 993                 ql_log(ql_log_info, vha, 0x500a,
 994                     "LOOP UP detected (%s Gbps).\n",
 995                     qla2x00_get_link_speed_str(ha, ha->link_data_rate));
 996
 997                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
 998                         if (mb[2] & BIT_0)
 999                                 ql_log(ql_log_info, vha, 0x11a0,
1000                                     "FEC=enabled (link up).\n");
1001                 }
1002
1003                 vha->flags.management_server_logged_in = 0;
1004                 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
1005
1006                 break;
1007
1008         case MBA_LOOP_DOWN:             /* Loop Down Event */
1009                 SAVE_TOPO(ha);
1010                 ha->flags.lip_ae = 0;
1011                 ha->current_topology = 0;
1012
1013                 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
1014                         ? rd_reg_word(&reg24->mailbox4) : 0;
1015                 mbx = (IS_P3P_TYPE(ha)) ? rd_reg_word(&reg82->mailbox_out[4])
1016                         : mbx;
1017                 ql_log(ql_log_info, vha, 0x500b,
1018                     "LOOP DOWN detected (%x %x %x %x).\n",
1019                     mb[1], mb[2], mb[3], mbx);
1020
1021                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1022                         atomic_set(&vha->loop_state, LOOP_DOWN);
1023                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1024                         /*
1025                          * In case of loop down, restore WWPN from
1026                          * NVRAM in case of FA-WWPN capable ISP
1027                          * Restore for Physical Port only
1028                          */
1029                         if (!vha->vp_idx) {
1030                                 if (ha->flags.fawwpn_enabled &&
1031                                     (ha->current_topology == ISP_CFG_F)) {
1032                                         void *wwpn = ha->init_cb->port_name;
1033
1034                                         memcpy(vha->port_name, wwpn, WWN_SIZE);
1035                                         fc_host_port_name(vha->host) =
1036                                             wwn_to_u64(vha->port_name);
1037                                         ql_dbg(ql_dbg_init + ql_dbg_verbose,
1038                                             vha, 0x00d8, "LOOP DOWN detected,"
1039                                             "restore WWPN %016llx\n",
1040                                             wwn_to_u64(vha->port_name));
1041                                 }
1042
1043                                 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
1044                         }
1045
1046                         vha->device_flags |= DFLG_NO_CABLE;
1047                         qla2x00_mark_all_devices_lost(vha);
1048                 }
1049
1050                 if (vha->vp_idx) {
1051                         atomic_set(&vha->vp_state, VP_FAILED);
1052                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1053                 }
1054
1055                 vha->flags.management_server_logged_in = 0;
1056                 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1057                 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
1058                 break;
1059
1060         case MBA_LIP_RESET:             /* LIP reset occurred */
1061                 ql_dbg(ql_dbg_async, vha, 0x500c,
1062                     "LIP reset occurred (%x).\n", mb[1]);
1063
1064                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1065                         atomic_set(&vha->loop_state, LOOP_DOWN);
1066                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1067                         qla2x00_mark_all_devices_lost(vha);
1068                 }
1069
1070                 if (vha->vp_idx) {
1071                         atomic_set(&vha->vp_state, VP_FAILED);
1072                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1073                 }
1074
1075                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1076
1077                 ha->operating_mode = LOOP;
1078                 vha->flags.management_server_logged_in = 0;
1079                 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
1080                 break;
1081
1082         /* case MBA_DCBX_COMPLETE: */
1083         case MBA_POINT_TO_POINT:        /* Point-to-Point */
1084                 ha->flags.lip_ae = 0;
1085
1086                 if (IS_QLA2100(ha))
1087                         break;
1088
1089                 if (IS_CNA_CAPABLE(ha)) {
1090                         ql_dbg(ql_dbg_async, vha, 0x500d,
1091                             "DCBX Completed -- %04x %04x %04x.\n",
1092                             mb[1], mb[2], mb[3]);
1093                         if (ha->notify_dcbx_comp && !vha->vp_idx)
1094                                 complete(&ha->dcbx_comp);
1095
1096                 } else
1097                         ql_dbg(ql_dbg_async, vha, 0x500e,
1098                             "Asynchronous P2P MODE received.\n");
1099
1100                 /*
1101                  * Until there's a transition from loop down to loop up, treat
1102                  * this as loop down only.
1103                  */
1104                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1105                         atomic_set(&vha->loop_state, LOOP_DOWN);
1106                         if (!atomic_read(&vha->loop_down_timer))
1107                                 atomic_set(&vha->loop_down_timer,
1108                                     LOOP_DOWN_TIME);
1109                         if (!N2N_TOPO(ha))
1110                                 qla2x00_mark_all_devices_lost(vha);
1111                 }
1112
1113                 if (vha->vp_idx) {
1114                         atomic_set(&vha->vp_state, VP_FAILED);
1115                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1116                 }
1117
1118                 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
1119                         set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1120
1121                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1122                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1123
1124                 vha->flags.management_server_logged_in = 0;
1125                 break;
1126
1127         case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
1128                 if (IS_QLA2100(ha))
1129                         break;
1130
1131                 ql_dbg(ql_dbg_async, vha, 0x500f,
1132                     "Configuration change detected: value=%x.\n", mb[1]);
1133
1134                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1135                         atomic_set(&vha->loop_state, LOOP_DOWN);
1136                         if (!atomic_read(&vha->loop_down_timer))
1137                                 atomic_set(&vha->loop_down_timer,
1138                                     LOOP_DOWN_TIME);
1139                         qla2x00_mark_all_devices_lost(vha);
1140                 }
1141
1142                 if (vha->vp_idx) {
1143                         atomic_set(&vha->vp_state, VP_FAILED);
1144                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1145                 }
1146
1147                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1148                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1149                 break;
1150
1151         case MBA_PORT_UPDATE:           /* Port database update */
1152                 /*
1153                  * Handle only global and vn-port update events
1154                  *
1155                  * Relevant inputs:
1156                  * mb[1] = N_Port handle of changed port
1157                  * OR 0xffff for global event
1158                  * mb[2] = New login state
1159                  * 7 = Port logged out
1160                  * mb[3] = LSB is vp_idx, 0xff = all vps
1161                  *
1162                  * Skip processing if:
1163                  *       Event is global, vp_idx is NOT all vps,
1164                  *           vp_idx does not match
1165                  *       Event is not global, vp_idx does not match
1166                  */
1167                 if (IS_QLA2XXX_MIDTYPE(ha) &&
1168                     ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
1169                         (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
1170                         break;
1171
1172                 if (mb[2] == 0x7) {
1173                         ql_dbg(ql_dbg_async, vha, 0x5010,
1174                             "Port %s %04x %04x %04x.\n",
1175                             mb[1] == 0xffff ? "unavailable" : "logout",
1176                             mb[1], mb[2], mb[3]);
1177
1178                         if (mb[1] == 0xffff)
1179                                 goto global_port_update;
1180
1181                         if (mb[1] == NPH_SNS_LID(ha)) {
1182                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1183                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1184                                 break;
1185                         }
1186
1187                         /* use handle_cnt for loop id/nport handle */
1188                         if (IS_FWI2_CAPABLE(ha))
1189                                 handle_cnt = NPH_SNS;
1190                         else
1191                                 handle_cnt = SIMPLE_NAME_SERVER;
1192                         if (mb[1] == handle_cnt) {
1193                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1194                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1195                                 break;
1196                         }
1197
1198                         /* Port logout */
1199                         fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1200                         if (!fcport)
1201                                 break;
1202                         if (atomic_read(&fcport->state) != FCS_ONLINE)
1203                                 break;
1204                         ql_dbg(ql_dbg_async, vha, 0x508a,
1205                             "Marking port lost loopid=%04x portid=%06x.\n",
1206                             fcport->loop_id, fcport->d_id.b24);
1207                         if (qla_ini_mode_enabled(vha)) {
1208                                 fcport->logout_on_delete = 0;
1209                                 qlt_schedule_sess_for_deletion(fcport);
1210                         }
1211                         break;
1212
1213 global_port_update:
1214                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1215                                 atomic_set(&vha->loop_state, LOOP_DOWN);
1216                                 atomic_set(&vha->loop_down_timer,
1217                                     LOOP_DOWN_TIME);
1218                                 vha->device_flags |= DFLG_NO_CABLE;
1219                                 qla2x00_mark_all_devices_lost(vha);
1220                         }
1221
1222                         if (vha->vp_idx) {
1223                                 atomic_set(&vha->vp_state, VP_FAILED);
1224                                 fc_vport_set_state(vha->fc_vport,
1225                                     FC_VPORT_FAILED);
1226                                 qla2x00_mark_all_devices_lost(vha);
1227                         }
1228
1229                         vha->flags.management_server_logged_in = 0;
1230                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1231                         break;
1232                 }
1233
1234                 /*
1235                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1236                  * event etc. earlier indicating loop is down) then process
1237                  * it.  Otherwise ignore it and Wait for RSCN to come in.
1238                  */
1239                 atomic_set(&vha->loop_down_timer, 0);
1240                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1241                         !ha->flags.n2n_ae  &&
1242                     atomic_read(&vha->loop_state) != LOOP_DEAD) {
1243                         ql_dbg(ql_dbg_async, vha, 0x5011,
1244                             "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1245                             mb[1], mb[2], mb[3]);
1246                         break;
1247                 }
1248
1249                 ql_dbg(ql_dbg_async, vha, 0x5012,
1250                     "Port database changed %04x %04x %04x.\n",
1251                     mb[1], mb[2], mb[3]);
1252
1253                 /*
1254                  * Mark all devices as missing so we will login again.
1255                  */
1256                 atomic_set(&vha->loop_state, LOOP_UP);
1257                 vha->scan.scan_retry = 0;
1258
1259                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1260                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1261                 set_bit(VP_CONFIG_OK, &vha->vp_flags);
1262                 break;
1263
1264         case MBA_RSCN_UPDATE:           /* State Change Registration */
1265                 /* Check if the Vport has issued a SCR */
1266                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1267                         break;
1268                 /* Only handle SCNs for our Vport index. */
1269                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1270                         break;
1271
1272                 ql_dbg(ql_dbg_async, vha, 0x5013,
1273                     "RSCN database changed -- %04x %04x %04x.\n",
1274                     mb[1], mb[2], mb[3]);
1275
1276                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1277                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1278                                 | vha->d_id.b.al_pa;
1279                 if (rscn_entry == host_pid) {
1280                         ql_dbg(ql_dbg_async, vha, 0x5014,
1281                             "Ignoring RSCN update to local host "
1282                             "port ID (%06x).\n", host_pid);
1283                         break;
1284                 }
1285
1286                 /* Ignore reserved bits from RSCN-payload. */
1287                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1288
1289                 /* Skip RSCNs for virtual ports on the same physical port */
1290                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1291                         break;
1292
1293                 atomic_set(&vha->loop_down_timer, 0);
1294                 vha->flags.management_server_logged_in = 0;
1295                 {
1296                         struct event_arg ea;
1297
1298                         memset(&ea, 0, sizeof(ea));
1299                         ea.id.b24 = rscn_entry;
1300                         ea.id.b.rsvd_1 = rscn_entry >> 24;
1301                         qla2x00_handle_rscn(vha, &ea);
1302                         qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1303                 }
1304                 break;
1305         /* case MBA_RIO_RESPONSE: */
1306         case MBA_ZIO_RESPONSE:
1307                 ql_dbg(ql_dbg_async, vha, 0x5015,
1308                     "[R|Z]IO update completion.\n");
1309
1310                 if (IS_FWI2_CAPABLE(ha))
1311                         qla24xx_process_response_queue(vha, rsp);
1312                 else
1313                         qla2x00_process_response_queue(rsp);
1314                 break;
1315
1316         case MBA_DISCARD_RND_FRAME:
1317                 ql_dbg(ql_dbg_async, vha, 0x5016,
1318                     "Discard RND Frame -- %04x %04x %04x.\n",
1319                     mb[1], mb[2], mb[3]);
1320                 break;
1321
1322         case MBA_TRACE_NOTIFICATION:
1323                 ql_dbg(ql_dbg_async, vha, 0x5017,
1324                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1325                 break;
1326
1327         case MBA_ISP84XX_ALERT:
1328                 ql_dbg(ql_dbg_async, vha, 0x5018,
1329                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1330                     mb[1], mb[2], mb[3]);
1331
1332                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1333                 switch (mb[1]) {
1334                 case A84_PANIC_RECOVERY:
1335                         ql_log(ql_log_info, vha, 0x5019,
1336                             "Alert 84XX: panic recovery %04x %04x.\n",
1337                             mb[2], mb[3]);
1338                         break;
1339                 case A84_OP_LOGIN_COMPLETE:
1340                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1341                         ql_log(ql_log_info, vha, 0x501a,
1342                             "Alert 84XX: firmware version %x.\n",
1343                             ha->cs84xx->op_fw_version);
1344                         break;
1345                 case A84_DIAG_LOGIN_COMPLETE:
1346                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1347                         ql_log(ql_log_info, vha, 0x501b,
1348                             "Alert 84XX: diagnostic firmware version %x.\n",
1349                             ha->cs84xx->diag_fw_version);
1350                         break;
1351                 case A84_GOLD_LOGIN_COMPLETE:
1352                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1353                         ha->cs84xx->fw_update = 1;
1354                         ql_log(ql_log_info, vha, 0x501c,
1355                             "Alert 84XX: gold firmware version %x.\n",
1356                             ha->cs84xx->gold_fw_version);
1357                         break;
1358                 default:
1359                         ql_log(ql_log_warn, vha, 0x501d,
1360                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1361                             mb[1], mb[2], mb[3]);
1362                 }
1363                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1364                 break;
1365         case MBA_DCBX_START:
1366                 ql_dbg(ql_dbg_async, vha, 0x501e,
1367                     "DCBX Started -- %04x %04x %04x.\n",
1368                     mb[1], mb[2], mb[3]);
1369                 break;
1370         case MBA_DCBX_PARAM_UPDATE:
1371                 ql_dbg(ql_dbg_async, vha, 0x501f,
1372                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1373                     mb[1], mb[2], mb[3]);
1374                 break;
1375         case MBA_FCF_CONF_ERR:
1376                 ql_dbg(ql_dbg_async, vha, 0x5020,
1377                     "FCF Configuration Error -- %04x %04x %04x.\n",
1378                     mb[1], mb[2], mb[3]);
1379                 break;
1380         case MBA_IDC_NOTIFY:
1381                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1382                         mb[4] = rd_reg_word(&reg24->mailbox4);
1383                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1384                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1385                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1386                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1387                                 /*
1388                                  * Extend loop down timer since port is active.
1389                                  */
1390                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1391                                         atomic_set(&vha->loop_down_timer,
1392                                             LOOP_DOWN_TIME);
1393                                 qla2xxx_wake_dpc(vha);
1394                         }
1395                 }
1396                 /* fall through */
1397         case MBA_IDC_COMPLETE:
1398                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1399                         complete(&ha->lb_portup_comp);
1400                 /* Fallthru */
1401         case MBA_IDC_TIME_EXT:
1402                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1403                     IS_QLA8044(ha))
1404                         qla81xx_idc_event(vha, mb[0], mb[1]);
1405                 break;
1406
1407         case MBA_IDC_AEN:
1408                 if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1409                         qla27xx_handle_8200_aen(vha, mb);
1410                 } else if (IS_QLA83XX(ha)) {
1411                         mb[4] = rd_reg_word(&reg24->mailbox4);
1412                         mb[5] = rd_reg_word(&reg24->mailbox5);
1413                         mb[6] = rd_reg_word(&reg24->mailbox6);
1414                         mb[7] = rd_reg_word(&reg24->mailbox7);
1415                         qla83xx_handle_8200_aen(vha, mb);
1416                 } else {
1417                         ql_dbg(ql_dbg_async, vha, 0x5052,
1418                             "skip Heartbeat processing mb0-3=[0x%04x] [0x%04x] [0x%04x] [0x%04x]\n",
1419                             mb[0], mb[1], mb[2], mb[3]);
1420                 }
1421                 break;
1422
1423         case MBA_DPORT_DIAGNOSTICS:
1424                 ql_dbg(ql_dbg_async, vha, 0x5052,
1425                     "D-Port Diagnostics: %04x %04x %04x %04x\n",
1426                     mb[0], mb[1], mb[2], mb[3]);
1427                 memcpy(vha->dport_data, mb, sizeof(vha->dport_data));
1428                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1429                         static char *results[] = {
1430                             "start", "done(pass)", "done(error)", "undefined" };
1431                         static char *types[] = {
1432                             "none", "dynamic", "static", "other" };
1433                         uint result = mb[1] >> 0 & 0x3;
1434                         uint type = mb[1] >> 6 & 0x3;
1435                         uint sw = mb[1] >> 15 & 0x1;
1436                         ql_dbg(ql_dbg_async, vha, 0x5052,
1437                             "D-Port Diagnostics: result=%s type=%s [sw=%u]\n",
1438                             results[result], types[type], sw);
1439                         if (result == 2) {
1440                                 static char *reasons[] = {
1441                                     "reserved", "unexpected reject",
1442                                     "unexpected phase", "retry exceeded",
1443                                     "timed out", "not supported",
1444                                     "user stopped" };
1445                                 uint reason = mb[2] >> 0 & 0xf;
1446                                 uint phase = mb[2] >> 12 & 0xf;
1447                                 ql_dbg(ql_dbg_async, vha, 0x5052,
1448                                     "D-Port Diagnostics: reason=%s phase=%u \n",
1449                                     reason < 7 ? reasons[reason] : "other",
1450                                     phase >> 1);
1451                         }
1452                 }
1453                 break;
1454
1455         case MBA_TEMPERATURE_ALERT:
1456                 ql_dbg(ql_dbg_async, vha, 0x505e,
1457                     "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1458                 if (mb[1] == 0x12)
1459                         schedule_work(&ha->board_disable);
1460                 break;
1461
1462         case MBA_TRANS_INSERT:
1463                 ql_dbg(ql_dbg_async, vha, 0x5091,
1464                     "Transceiver Insertion: %04x\n", mb[1]);
1465                 set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
1466                 break;
1467
1468         case MBA_TRANS_REMOVE:
1469                 ql_dbg(ql_dbg_async, vha, 0x5091, "Transceiver Removal\n");
1470                 break;
1471
1472         default:
1473                 ql_dbg(ql_dbg_async, vha, 0x5057,
1474                     "Unknown AEN:%04x %04x %04x %04x\n",
1475                     mb[0], mb[1], mb[2], mb[3]);
1476         }
1477
1478         qlt_async_event(mb[0], vha, mb);
1479
1480         if (!vha->vp_idx && ha->num_vhosts)
1481                 qla2x00_alert_all_vps(rsp, mb);
1482 }
1483
1484 /**
1485  * qla2x00_process_completed_request() - Process a Fast Post response.
1486  * @vha: SCSI driver HA context
1487  * @req: request queue
1488  * @index: SRB index
1489  */
1490 void
1491 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1492                                   struct req_que *req, uint32_t index)
1493 {
1494         srb_t *sp;
1495         struct qla_hw_data *ha = vha->hw;
1496
1497         /* Validate handle. */
1498         if (index >= req->num_outstanding_cmds) {
1499                 ql_log(ql_log_warn, vha, 0x3014,
1500                     "Invalid SCSI command index (%x).\n", index);
1501
1502                 if (IS_P3P_TYPE(ha))
1503                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1504                 else
1505                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1506                 return;
1507         }
1508
1509         sp = req->outstanding_cmds[index];
1510         if (sp) {
1511                 /* Free outstanding command slot. */
1512                 req->outstanding_cmds[index] = NULL;
1513
1514                 /* Save ISP completion status */
1515                 sp->done(sp, DID_OK << 16);
1516         } else {
1517                 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1518
1519                 if (IS_P3P_TYPE(ha))
1520                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1521                 else
1522                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1523         }
1524 }
1525
1526 srb_t *
1527 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1528     struct req_que *req, void *iocb)
1529 {
1530         struct qla_hw_data *ha = vha->hw;
1531         sts_entry_t *pkt = iocb;
1532         srb_t *sp = NULL;
1533         uint16_t index;
1534
1535         index = LSW(pkt->handle);
1536         if (index >= req->num_outstanding_cmds) {
1537                 ql_log(ql_log_warn, vha, 0x5031,
1538                            "Invalid command index (%x) type %8ph.\n",
1539                            index, iocb);
1540                 if (IS_P3P_TYPE(ha))
1541                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1542                 else
1543                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1544                 goto done;
1545         }
1546         sp = req->outstanding_cmds[index];
1547         if (!sp) {
1548                 ql_log(ql_log_warn, vha, 0x5032,
1549                     "Invalid completion handle (%x) -- timed-out.\n", index);
1550                 return sp;
1551         }
1552         if (sp->handle != index) {
1553                 ql_log(ql_log_warn, vha, 0x5033,
1554                     "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1555                 return NULL;
1556         }
1557
1558         req->outstanding_cmds[index] = NULL;
1559
1560 done:
1561         return sp;
1562 }
1563
1564 static void
1565 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1566     struct mbx_entry *mbx)
1567 {
1568         const char func[] = "MBX-IOCB";
1569         const char *type;
1570         fc_port_t *fcport;
1571         srb_t *sp;
1572         struct srb_iocb *lio;
1573         uint16_t *data;
1574         uint16_t status;
1575
1576         sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1577         if (!sp)
1578                 return;
1579
1580         lio = &sp->u.iocb_cmd;
1581         type = sp->name;
1582         fcport = sp->fcport;
1583         data = lio->u.logio.data;
1584
1585         data[0] = MBS_COMMAND_ERROR;
1586         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1587             QLA_LOGIO_LOGIN_RETRIED : 0;
1588         if (mbx->entry_status) {
1589                 ql_dbg(ql_dbg_async, vha, 0x5043,
1590                     "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1591                     "entry-status=%x status=%x state-flag=%x "
1592                     "status-flags=%x.\n", type, sp->handle,
1593                     fcport->d_id.b.domain, fcport->d_id.b.area,
1594                     fcport->d_id.b.al_pa, mbx->entry_status,
1595                     le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1596                     le16_to_cpu(mbx->status_flags));
1597
1598                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1599                     mbx, sizeof(*mbx));
1600
1601                 goto logio_done;
1602         }
1603
1604         status = le16_to_cpu(mbx->status);
1605         if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1606             le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1607                 status = 0;
1608         if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1609                 ql_dbg(ql_dbg_async, vha, 0x5045,
1610                     "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1611                     type, sp->handle, fcport->d_id.b.domain,
1612                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1613                     le16_to_cpu(mbx->mb1));
1614
1615                 data[0] = MBS_COMMAND_COMPLETE;
1616                 if (sp->type == SRB_LOGIN_CMD) {
1617                         fcport->port_type = FCT_TARGET;
1618                         if (le16_to_cpu(mbx->mb1) & BIT_0)
1619                                 fcport->port_type = FCT_INITIATOR;
1620                         else if (le16_to_cpu(mbx->mb1) & BIT_1)
1621                                 fcport->flags |= FCF_FCP2_DEVICE;
1622                 }
1623                 goto logio_done;
1624         }
1625
1626         data[0] = le16_to_cpu(mbx->mb0);
1627         switch (data[0]) {
1628         case MBS_PORT_ID_USED:
1629                 data[1] = le16_to_cpu(mbx->mb1);
1630                 break;
1631         case MBS_LOOP_ID_USED:
1632                 break;
1633         default:
1634                 data[0] = MBS_COMMAND_ERROR;
1635                 break;
1636         }
1637
1638         ql_log(ql_log_warn, vha, 0x5046,
1639             "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1640             "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1641             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1642             status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1643             le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1644             le16_to_cpu(mbx->mb7));
1645
1646 logio_done:
1647         sp->done(sp, 0);
1648 }
1649
1650 static void
1651 qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1652     struct mbx_24xx_entry *pkt)
1653 {
1654         const char func[] = "MBX-IOCB2";
1655         srb_t *sp;
1656         struct srb_iocb *si;
1657         u16 sz, i;
1658         int res;
1659
1660         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1661         if (!sp)
1662                 return;
1663
1664         si = &sp->u.iocb_cmd;
1665         sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
1666
1667         for (i = 0; i < sz; i++)
1668                 si->u.mbx.in_mb[i] = pkt->mb[i];
1669
1670         res = (si->u.mbx.in_mb[0] & MBS_MASK);
1671
1672         sp->done(sp, res);
1673 }
1674
1675 static void
1676 qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1677     struct nack_to_isp *pkt)
1678 {
1679         const char func[] = "nack";
1680         srb_t *sp;
1681         int res = 0;
1682
1683         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1684         if (!sp)
1685                 return;
1686
1687         if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
1688                 res = QLA_FUNCTION_FAILED;
1689
1690         sp->done(sp, res);
1691 }
1692
1693 static void
1694 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1695     sts_entry_t *pkt, int iocb_type)
1696 {
1697         const char func[] = "CT_IOCB";
1698         const char *type;
1699         srb_t *sp;
1700         struct bsg_job *bsg_job;
1701         struct fc_bsg_reply *bsg_reply;
1702         uint16_t comp_status;
1703         int res = 0;
1704
1705         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1706         if (!sp)
1707                 return;
1708
1709         switch (sp->type) {
1710         case SRB_CT_CMD:
1711             bsg_job = sp->u.bsg_job;
1712             bsg_reply = bsg_job->reply;
1713
1714             type = "ct pass-through";
1715
1716             comp_status = le16_to_cpu(pkt->comp_status);
1717
1718             /*
1719              * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1720              * fc payload  to the caller
1721              */
1722             bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1723             bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1724
1725             if (comp_status != CS_COMPLETE) {
1726                     if (comp_status == CS_DATA_UNDERRUN) {
1727                             res = DID_OK << 16;
1728                             bsg_reply->reply_payload_rcv_len =
1729                                 le16_to_cpu(pkt->rsp_info_len);
1730
1731                             ql_log(ql_log_warn, vha, 0x5048,
1732                                 "CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
1733                                 type, comp_status,
1734                                 bsg_reply->reply_payload_rcv_len);
1735                     } else {
1736                             ql_log(ql_log_warn, vha, 0x5049,
1737                                 "CT pass-through-%s error comp_status=0x%x.\n",
1738                                 type, comp_status);
1739                             res = DID_ERROR << 16;
1740                             bsg_reply->reply_payload_rcv_len = 0;
1741                     }
1742                     ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1743                         pkt, sizeof(*pkt));
1744             } else {
1745                     res = DID_OK << 16;
1746                     bsg_reply->reply_payload_rcv_len =
1747                         bsg_job->reply_payload.payload_len;
1748                     bsg_job->reply_len = 0;
1749             }
1750             break;
1751         case SRB_CT_PTHRU_CMD:
1752             /*
1753              * borrowing sts_entry_24xx.comp_status.
1754              * same location as ct_entry_24xx.comp_status
1755              */
1756              res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
1757                  (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1758                  sp->name);
1759              break;
1760         }
1761
1762         sp->done(sp, res);
1763 }
1764
1765 static void
1766 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1767     struct sts_entry_24xx *pkt, int iocb_type)
1768 {
1769         struct els_sts_entry_24xx *ese = (struct els_sts_entry_24xx *)pkt;
1770         const char func[] = "ELS_CT_IOCB";
1771         const char *type;
1772         srb_t *sp;
1773         struct bsg_job *bsg_job;
1774         struct fc_bsg_reply *bsg_reply;
1775         uint16_t comp_status;
1776         uint32_t fw_status[3];
1777         int res;
1778         struct srb_iocb *els;
1779
1780         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1781         if (!sp)
1782                 return;
1783
1784         type = NULL;
1785         switch (sp->type) {
1786         case SRB_ELS_CMD_RPT:
1787         case SRB_ELS_CMD_HST:
1788                 type = "els";
1789                 break;
1790         case SRB_CT_CMD:
1791                 type = "ct pass-through";
1792                 break;
1793         case SRB_ELS_DCMD:
1794                 type = "Driver ELS logo";
1795                 if (iocb_type != ELS_IOCB_TYPE) {
1796                         ql_dbg(ql_dbg_user, vha, 0x5047,
1797                             "Completing %s: (%p) type=%d.\n",
1798                             type, sp, sp->type);
1799                         sp->done(sp, 0);
1800                         return;
1801                 }
1802                 break;
1803         case SRB_CT_PTHRU_CMD:
1804                 /* borrowing sts_entry_24xx.comp_status.
1805                    same location as ct_entry_24xx.comp_status
1806                  */
1807                 res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
1808                         (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1809                         sp->name);
1810                 sp->done(sp, res);
1811                 return;
1812         default:
1813                 ql_dbg(ql_dbg_user, vha, 0x503e,
1814                     "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1815                 return;
1816         }
1817
1818         comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1819         fw_status[1] = le32_to_cpu(ese->error_subcode_1);
1820         fw_status[2] = le32_to_cpu(ese->error_subcode_2);
1821
1822         if (iocb_type == ELS_IOCB_TYPE) {
1823                 els = &sp->u.iocb_cmd;
1824                 els->u.els_plogi.fw_status[0] = cpu_to_le32(fw_status[0]);
1825                 els->u.els_plogi.fw_status[1] = cpu_to_le32(fw_status[1]);
1826                 els->u.els_plogi.fw_status[2] = cpu_to_le32(fw_status[2]);
1827                 els->u.els_plogi.comp_status = cpu_to_le16(fw_status[0]);
1828                 if (comp_status == CS_COMPLETE) {
1829                         res =  DID_OK << 16;
1830                 } else {
1831                         if (comp_status == CS_DATA_UNDERRUN) {
1832                                 res =  DID_OK << 16;
1833                                 els->u.els_plogi.len = cpu_to_le16(le32_to_cpu(
1834                                         ese->total_byte_count));
1835                         } else {
1836                                 els->u.els_plogi.len = 0;
1837                                 res = DID_ERROR << 16;
1838                         }
1839                 }
1840                 ql_dbg(ql_dbg_user, vha, 0x503f,
1841                     "ELS IOCB Done -%s error hdl=%x comp_status=0x%x error subcode 1=0x%x error subcode 2=0x%x total_byte=0x%x\n",
1842                     type, sp->handle, comp_status, fw_status[1], fw_status[2],
1843                     le32_to_cpu(ese->total_byte_count));
1844                 goto els_ct_done;
1845         }
1846
1847         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1848          * fc payload  to the caller
1849          */
1850         bsg_job = sp->u.bsg_job;
1851         bsg_reply = bsg_job->reply;
1852         bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1853         bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1854
1855         if (comp_status != CS_COMPLETE) {
1856                 if (comp_status == CS_DATA_UNDERRUN) {
1857                         res = DID_OK << 16;
1858                         bsg_reply->reply_payload_rcv_len =
1859                                 le32_to_cpu(ese->total_byte_count);
1860
1861                         ql_dbg(ql_dbg_user, vha, 0x503f,
1862                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1863                             "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1864                             type, sp->handle, comp_status, fw_status[1], fw_status[2],
1865                             le32_to_cpu(ese->total_byte_count));
1866                 } else {
1867                         ql_dbg(ql_dbg_user, vha, 0x5040,
1868                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1869                             "error subcode 1=0x%x error subcode 2=0x%x.\n",
1870                             type, sp->handle, comp_status,
1871                             le32_to_cpu(ese->error_subcode_1),
1872                             le32_to_cpu(ese->error_subcode_2));
1873                         res = DID_ERROR << 16;
1874                         bsg_reply->reply_payload_rcv_len = 0;
1875                 }
1876                 memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
1877                        fw_status, sizeof(fw_status));
1878                 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1879                     pkt, sizeof(*pkt));
1880         }
1881         else {
1882                 res =  DID_OK << 16;
1883                 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1884                 bsg_job->reply_len = 0;
1885         }
1886 els_ct_done:
1887
1888         sp->done(sp, res);
1889 }
1890
1891 static void
1892 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1893     struct logio_entry_24xx *logio)
1894 {
1895         const char func[] = "LOGIO-IOCB";
1896         const char *type;
1897         fc_port_t *fcport;
1898         srb_t *sp;
1899         struct srb_iocb *lio;
1900         uint16_t *data;
1901         uint32_t iop[2];
1902
1903         sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1904         if (!sp)
1905                 return;
1906
1907         lio = &sp->u.iocb_cmd;
1908         type = sp->name;
1909         fcport = sp->fcport;
1910         data = lio->u.logio.data;
1911
1912         data[0] = MBS_COMMAND_ERROR;
1913         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1914                 QLA_LOGIO_LOGIN_RETRIED : 0;
1915         if (logio->entry_status) {
1916                 ql_log(ql_log_warn, fcport->vha, 0x5034,
1917                     "Async-%s error entry - %8phC hdl=%x"
1918                     "portid=%02x%02x%02x entry-status=%x.\n",
1919                     type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
1920                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1921                     logio->entry_status);
1922                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1923                     logio, sizeof(*logio));
1924
1925                 goto logio_done;
1926         }
1927
1928         if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1929                 ql_dbg(ql_dbg_async, sp->vha, 0x5036,
1930                     "Async-%s complete: handle=%x pid=%06x wwpn=%8phC iop0=%x\n",
1931                     type, sp->handle, fcport->d_id.b24, fcport->port_name,
1932                     le32_to_cpu(logio->io_parameter[0]));
1933
1934                 vha->hw->exch_starvation = 0;
1935                 data[0] = MBS_COMMAND_COMPLETE;
1936
1937                 if (sp->type == SRB_PRLI_CMD) {
1938                         lio->u.logio.iop[0] =
1939                             le32_to_cpu(logio->io_parameter[0]);
1940                         lio->u.logio.iop[1] =
1941                             le32_to_cpu(logio->io_parameter[1]);
1942                         goto logio_done;
1943                 }
1944
1945                 if (sp->type != SRB_LOGIN_CMD)
1946                         goto logio_done;
1947
1948                 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1949                 if (iop[0] & BIT_4) {
1950                         fcport->port_type = FCT_TARGET;
1951                         if (iop[0] & BIT_8)
1952                                 fcport->flags |= FCF_FCP2_DEVICE;
1953                 } else if (iop[0] & BIT_5)
1954                         fcport->port_type = FCT_INITIATOR;
1955
1956                 if (iop[0] & BIT_7)
1957                         fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1958
1959                 if (logio->io_parameter[7] || logio->io_parameter[8])
1960                         fcport->supported_classes |= FC_COS_CLASS2;
1961                 if (logio->io_parameter[9] || logio->io_parameter[10])
1962                         fcport->supported_classes |= FC_COS_CLASS3;
1963
1964                 goto logio_done;
1965         }
1966
1967         iop[0] = le32_to_cpu(logio->io_parameter[0]);
1968         iop[1] = le32_to_cpu(logio->io_parameter[1]);
1969         lio->u.logio.iop[0] = iop[0];
1970         lio->u.logio.iop[1] = iop[1];
1971         switch (iop[0]) {
1972         case LSC_SCODE_PORTID_USED:
1973                 data[0] = MBS_PORT_ID_USED;
1974                 data[1] = LSW(iop[1]);
1975                 break;
1976         case LSC_SCODE_NPORT_USED:
1977                 data[0] = MBS_LOOP_ID_USED;
1978                 break;
1979         case LSC_SCODE_CMD_FAILED:
1980                 if (iop[1] == 0x0606) {
1981                         /*
1982                          * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
1983                          * Target side acked.
1984                          */
1985                         data[0] = MBS_COMMAND_COMPLETE;
1986                         goto logio_done;
1987                 }
1988                 data[0] = MBS_COMMAND_ERROR;
1989                 break;
1990         case LSC_SCODE_NOXCB:
1991                 vha->hw->exch_starvation++;
1992                 if (vha->hw->exch_starvation > 5) {
1993                         ql_log(ql_log_warn, vha, 0xd046,
1994                             "Exchange starvation. Resetting RISC\n");
1995
1996                         vha->hw->exch_starvation = 0;
1997
1998                         if (IS_P3P_TYPE(vha->hw))
1999                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2000                         else
2001                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2002                         qla2xxx_wake_dpc(vha);
2003                 }
2004                 /* fall through */
2005         default:
2006                 data[0] = MBS_COMMAND_ERROR;
2007                 break;
2008         }
2009
2010         ql_dbg(ql_dbg_async, sp->vha, 0x5037,
2011             "Async-%s failed: handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
2012             type, sp->handle, fcport->d_id.b24, fcport->port_name,
2013             le16_to_cpu(logio->comp_status),
2014             le32_to_cpu(logio->io_parameter[0]),
2015             le32_to_cpu(logio->io_parameter[1]));
2016
2017 logio_done:
2018         sp->done(sp, 0);
2019 }
2020
2021 static void
2022 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
2023 {
2024         const char func[] = "TMF-IOCB";
2025         const char *type;
2026         fc_port_t *fcport;
2027         srb_t *sp;
2028         struct srb_iocb *iocb;
2029         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2030
2031         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
2032         if (!sp)
2033                 return;
2034
2035         iocb = &sp->u.iocb_cmd;
2036         type = sp->name;
2037         fcport = sp->fcport;
2038         iocb->u.tmf.data = QLA_SUCCESS;
2039
2040         if (sts->entry_status) {
2041                 ql_log(ql_log_warn, fcport->vha, 0x5038,
2042                     "Async-%s error - hdl=%x entry-status(%x).\n",
2043                     type, sp->handle, sts->entry_status);
2044                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2045         } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
2046                 ql_log(ql_log_warn, fcport->vha, 0x5039,
2047                     "Async-%s error - hdl=%x completion status(%x).\n",
2048                     type, sp->handle, sts->comp_status);
2049                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2050         } else if ((le16_to_cpu(sts->scsi_status) &
2051             SS_RESPONSE_INFO_LEN_VALID)) {
2052                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
2053                         ql_log(ql_log_warn, fcport->vha, 0x503b,
2054                             "Async-%s error - hdl=%x not enough response(%d).\n",
2055                             type, sp->handle, sts->rsp_data_len);
2056                 } else if (sts->data[3]) {
2057                         ql_log(ql_log_warn, fcport->vha, 0x503c,
2058                             "Async-%s error - hdl=%x response(%x).\n",
2059                             type, sp->handle, sts->data[3]);
2060                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2061                 }
2062         }
2063
2064         if (iocb->u.tmf.data != QLA_SUCCESS)
2065                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, sp->vha, 0x5055,
2066                     sts, sizeof(*sts));
2067
2068         sp->done(sp, 0);
2069 }
2070
2071 static void qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2072     void *tsk, srb_t *sp)
2073 {
2074         fc_port_t *fcport;
2075         struct srb_iocb *iocb;
2076         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2077         uint16_t        state_flags;
2078         struct nvmefc_fcp_req *fd;
2079         uint16_t        ret = QLA_SUCCESS;
2080         __le16          comp_status = sts->comp_status;
2081         int             logit = 0;
2082
2083         iocb = &sp->u.iocb_cmd;
2084         fcport = sp->fcport;
2085         iocb->u.nvme.comp_status = comp_status;
2086         state_flags  = le16_to_cpu(sts->state_flags);
2087         fd = iocb->u.nvme.desc;
2088
2089         if (unlikely(iocb->u.nvme.aen_op))
2090                 atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
2091
2092         if (unlikely(comp_status != CS_COMPLETE))
2093                 logit = 1;
2094
2095         fd->transferred_length = fd->payload_length -
2096             le32_to_cpu(sts->residual_len);
2097
2098         /*
2099          * State flags: Bit 6 and 0.
2100          * If 0 is set, we don't care about 6.
2101          * both cases resp was dma'd to host buffer
2102          * if both are 0, that is good path case.
2103          * if six is set and 0 is clear, we need to
2104          * copy resp data from status iocb to resp buffer.
2105          */
2106         if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
2107                 iocb->u.nvme.rsp_pyld_len = 0;
2108         } else if ((state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP)) ==
2109                         (SF_FCP_RSP_DMA | SF_NVME_ERSP)) {
2110                 /* Response already DMA'd to fd->rspaddr. */
2111                 iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2112         } else if ((state_flags & SF_FCP_RSP_DMA)) {
2113                 /*
2114                  * Non-zero value in first 12 bytes of NVMe_RSP IU, treat this
2115                  * as an error.
2116                  */
2117                 iocb->u.nvme.rsp_pyld_len = 0;
2118                 fd->transferred_length = 0;
2119                 ql_dbg(ql_dbg_io, fcport->vha, 0x307a,
2120                         "Unexpected values in NVMe_RSP IU.\n");
2121                 logit = 1;
2122         } else if (state_flags & SF_NVME_ERSP) {
2123                 uint32_t *inbuf, *outbuf;
2124                 uint16_t iter;
2125
2126                 inbuf = (uint32_t *)&sts->nvme_ersp_data;
2127                 outbuf = (uint32_t *)fd->rspaddr;
2128                 iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2129                 if (unlikely(le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >
2130                     sizeof(struct nvme_fc_ersp_iu))) {
2131                         if (ql_mask_match(ql_dbg_io)) {
2132                                 WARN_ONCE(1, "Unexpected response payload length %u.\n",
2133                                     iocb->u.nvme.rsp_pyld_len);
2134                                 ql_log(ql_log_warn, fcport->vha, 0x5100,
2135                                     "Unexpected response payload length %u.\n",
2136                                     iocb->u.nvme.rsp_pyld_len);
2137                         }
2138                         iocb->u.nvme.rsp_pyld_len =
2139                                 cpu_to_le16(sizeof(struct nvme_fc_ersp_iu));
2140                 }
2141                 iter = le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >> 2;
2142                 for (; iter; iter--)
2143                         *outbuf++ = swab32(*inbuf++);
2144         }
2145
2146         if (state_flags & SF_NVME_ERSP) {
2147                 struct nvme_fc_ersp_iu *rsp_iu = fd->rspaddr;
2148                 u32 tgt_xfer_len;
2149
2150                 tgt_xfer_len = be32_to_cpu(rsp_iu->xfrd_len);
2151                 if (fd->transferred_length != tgt_xfer_len) {
2152                         ql_dbg(ql_dbg_io, fcport->vha, 0x3079,
2153                                 "Dropped frame(s) detected (sent/rcvd=%u/%u).\n",
2154                                 tgt_xfer_len, fd->transferred_length);
2155                         logit = 1;
2156                 } else if (le16_to_cpu(comp_status) == CS_DATA_UNDERRUN) {
2157                         /*
2158                          * Do not log if this is just an underflow and there
2159                          * is no data loss.
2160                          */
2161                         logit = 0;
2162                 }
2163         }
2164
2165         if (unlikely(logit))
2166                 ql_log(ql_log_warn, fcport->vha, 0x5060,
2167                    "NVME-%s ERR Handling - hdl=%x status(%x) tr_len:%x resid=%x  ox_id=%x\n",
2168                    sp->name, sp->handle, comp_status,
2169                    fd->transferred_length, le32_to_cpu(sts->residual_len),
2170                    sts->ox_id);
2171
2172         /*
2173          * If transport error then Failure (HBA rejects request)
2174          * otherwise transport will handle.
2175          */
2176         switch (le16_to_cpu(comp_status)) {
2177         case CS_COMPLETE:
2178                 break;
2179
2180         case CS_RESET:
2181         case CS_PORT_UNAVAILABLE:
2182         case CS_PORT_LOGGED_OUT:
2183                 fcport->nvme_flag |= NVME_FLAG_RESETTING;
2184                 /* fall through */
2185         case CS_ABORTED:
2186         case CS_PORT_BUSY:
2187                 fd->transferred_length = 0;
2188                 iocb->u.nvme.rsp_pyld_len = 0;
2189                 ret = QLA_ABORTED;
2190                 break;
2191         case CS_DATA_UNDERRUN:
2192                 break;
2193         default:
2194                 ret = QLA_FUNCTION_FAILED;
2195                 break;
2196         }
2197         sp->done(sp, ret);
2198 }
2199
2200 static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
2201     struct vp_ctrl_entry_24xx *vce)
2202 {
2203         const char func[] = "CTRLVP-IOCB";
2204         srb_t *sp;
2205         int rval = QLA_SUCCESS;
2206
2207         sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
2208         if (!sp)
2209                 return;
2210
2211         if (vce->entry_status != 0) {
2212                 ql_dbg(ql_dbg_vport, vha, 0x10c4,
2213                     "%s: Failed to complete IOCB -- error status (%x)\n",
2214                     sp->name, vce->entry_status);
2215                 rval = QLA_FUNCTION_FAILED;
2216         } else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
2217                 ql_dbg(ql_dbg_vport, vha, 0x10c5,
2218                     "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
2219                     sp->name, le16_to_cpu(vce->comp_status),
2220                     le16_to_cpu(vce->vp_idx_failed));
2221                 rval = QLA_FUNCTION_FAILED;
2222         } else {
2223                 ql_dbg(ql_dbg_vport, vha, 0x10c6,
2224                     "Done %s.\n", __func__);
2225         }
2226
2227         sp->rc = rval;
2228         sp->done(sp, rval);
2229 }
2230
2231 /* Process a single response queue entry. */
2232 static void qla2x00_process_response_entry(struct scsi_qla_host *vha,
2233                                            struct rsp_que *rsp,
2234                                            sts_entry_t *pkt)
2235 {
2236         sts21_entry_t *sts21_entry;
2237         sts22_entry_t *sts22_entry;
2238         uint16_t handle_cnt;
2239         uint16_t cnt;
2240
2241         switch (pkt->entry_type) {
2242         case STATUS_TYPE:
2243                 qla2x00_status_entry(vha, rsp, pkt);
2244                 break;
2245         case STATUS_TYPE_21:
2246                 sts21_entry = (sts21_entry_t *)pkt;
2247                 handle_cnt = sts21_entry->handle_count;
2248                 for (cnt = 0; cnt < handle_cnt; cnt++)
2249                         qla2x00_process_completed_request(vha, rsp->req,
2250                                                 sts21_entry->handle[cnt]);
2251                 break;
2252         case STATUS_TYPE_22:
2253                 sts22_entry = (sts22_entry_t *)pkt;
2254                 handle_cnt = sts22_entry->handle_count;
2255                 for (cnt = 0; cnt < handle_cnt; cnt++)
2256                         qla2x00_process_completed_request(vha, rsp->req,
2257                                                 sts22_entry->handle[cnt]);
2258                 break;
2259         case STATUS_CONT_TYPE:
2260                 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2261                 break;
2262         case MBX_IOCB_TYPE:
2263                 qla2x00_mbx_iocb_entry(vha, rsp->req, (struct mbx_entry *)pkt);
2264                 break;
2265         case CT_IOCB_TYPE:
2266                 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2267                 break;
2268         default:
2269                 /* Type Not Supported. */
2270                 ql_log(ql_log_warn, vha, 0x504a,
2271                        "Received unknown response pkt type %x entry status=%x.\n",
2272                        pkt->entry_type, pkt->entry_status);
2273                 break;
2274         }
2275 }
2276
2277 /**
2278  * qla2x00_process_response_queue() - Process response queue entries.
2279  * @rsp: response queue
2280  */
2281 void
2282 qla2x00_process_response_queue(struct rsp_que *rsp)
2283 {
2284         struct scsi_qla_host *vha;
2285         struct qla_hw_data *ha = rsp->hw;
2286         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2287         sts_entry_t     *pkt;
2288
2289         vha = pci_get_drvdata(ha->pdev);
2290
2291         if (!vha->flags.online)
2292                 return;
2293
2294         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2295                 pkt = (sts_entry_t *)rsp->ring_ptr;
2296
2297                 rsp->ring_index++;
2298                 if (rsp->ring_index == rsp->length) {
2299                         rsp->ring_index = 0;
2300                         rsp->ring_ptr = rsp->ring;
2301                 } else {
2302                         rsp->ring_ptr++;
2303                 }
2304
2305                 if (pkt->entry_status != 0) {
2306                         qla2x00_error_entry(vha, rsp, pkt);
2307                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2308                         wmb();
2309                         continue;
2310                 }
2311
2312                 qla2x00_process_response_entry(vha, rsp, pkt);
2313                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2314                 wmb();
2315         }
2316
2317         /* Adjust ring index */
2318         wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
2319 }
2320
2321 static inline void
2322 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2323                      uint32_t sense_len, struct rsp_que *rsp, int res)
2324 {
2325         struct scsi_qla_host *vha = sp->vha;
2326         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2327         uint32_t track_sense_len;
2328
2329         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2330                 sense_len = SCSI_SENSE_BUFFERSIZE;
2331
2332         SET_CMD_SENSE_LEN(sp, sense_len);
2333         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2334         track_sense_len = sense_len;
2335
2336         if (sense_len > par_sense_len)
2337                 sense_len = par_sense_len;
2338
2339         memcpy(cp->sense_buffer, sense_data, sense_len);
2340
2341         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2342         track_sense_len -= sense_len;
2343         SET_CMD_SENSE_LEN(sp, track_sense_len);
2344
2345         if (track_sense_len != 0) {
2346                 rsp->status_srb = sp;
2347                 cp->result = res;
2348         }
2349
2350         if (sense_len) {
2351                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
2352                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2353                     sp->vha->host_no, cp->device->id, cp->device->lun,
2354                     cp);
2355                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
2356                     cp->sense_buffer, sense_len);
2357         }
2358 }
2359
2360 struct scsi_dif_tuple {
2361         __be16 guard;       /* Checksum */
2362         __be16 app_tag;         /* APPL identifier */
2363         __be32 ref_tag;         /* Target LBA or indirect LBA */
2364 };
2365
2366 /*
2367  * Checks the guard or meta-data for the type of error
2368  * detected by the HBA. In case of errors, we set the
2369  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
2370  * to indicate to the kernel that the HBA detected error.
2371  */
2372 static inline int
2373 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
2374 {
2375         struct scsi_qla_host *vha = sp->vha;
2376         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2377         uint8_t         *ap = &sts24->data[12];
2378         uint8_t         *ep = &sts24->data[20];
2379         uint32_t        e_ref_tag, a_ref_tag;
2380         uint16_t        e_app_tag, a_app_tag;
2381         uint16_t        e_guard, a_guard;
2382
2383         /*
2384          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
2385          * would make guard field appear at offset 2
2386          */
2387         a_guard   = get_unaligned_le16(ap + 2);
2388         a_app_tag = get_unaligned_le16(ap + 0);
2389         a_ref_tag = get_unaligned_le32(ap + 4);
2390         e_guard   = get_unaligned_le16(ep + 2);
2391         e_app_tag = get_unaligned_le16(ep + 0);
2392         e_ref_tag = get_unaligned_le32(ep + 4);
2393
2394         ql_dbg(ql_dbg_io, vha, 0x3023,
2395             "iocb(s) %p Returned STATUS.\n", sts24);
2396
2397         ql_dbg(ql_dbg_io, vha, 0x3024,
2398             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
2399             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
2400             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
2401             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
2402             a_app_tag, e_app_tag, a_guard, e_guard);
2403
2404         /*
2405          * Ignore sector if:
2406          * For type     3: ref & app tag is all 'f's
2407          * For type 0,1,2: app tag is all 'f's
2408          */
2409         if (a_app_tag == be16_to_cpu(T10_PI_APP_ESCAPE) &&
2410             (scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3 ||
2411              a_ref_tag == be32_to_cpu(T10_PI_REF_ESCAPE))) {
2412                 uint32_t blocks_done, resid;
2413                 sector_t lba_s = scsi_get_lba(cmd);
2414
2415                 /* 2TB boundary case covered automatically with this */
2416                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
2417
2418                 resid = scsi_bufflen(cmd) - (blocks_done *
2419                     cmd->device->sector_size);
2420
2421                 scsi_set_resid(cmd, resid);
2422                 cmd->result = DID_OK << 16;
2423
2424                 /* Update protection tag */
2425                 if (scsi_prot_sg_count(cmd)) {
2426                         uint32_t i, j = 0, k = 0, num_ent;
2427                         struct scatterlist *sg;
2428                         struct t10_pi_tuple *spt;
2429
2430                         /* Patch the corresponding protection tags */
2431                         scsi_for_each_prot_sg(cmd, sg,
2432                             scsi_prot_sg_count(cmd), i) {
2433                                 num_ent = sg_dma_len(sg) / 8;
2434                                 if (k + num_ent < blocks_done) {
2435                                         k += num_ent;
2436                                         continue;
2437                                 }
2438                                 j = blocks_done - k - 1;
2439                                 k = blocks_done;
2440                                 break;
2441                         }
2442
2443                         if (k != blocks_done) {
2444                                 ql_log(ql_log_warn, vha, 0x302f,
2445                                     "unexpected tag values tag:lba=%x:%llx)\n",
2446                                     e_ref_tag, (unsigned long long)lba_s);
2447                                 return 1;
2448                         }
2449
2450                         spt = page_address(sg_page(sg)) + sg->offset;
2451                         spt += j;
2452
2453                         spt->app_tag = T10_PI_APP_ESCAPE;
2454                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
2455                                 spt->ref_tag = T10_PI_REF_ESCAPE;
2456                 }
2457
2458                 return 0;
2459         }
2460
2461         /* check guard */
2462         if (e_guard != a_guard) {
2463                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2464                     0x10, 0x1);
2465                 set_driver_byte(cmd, DRIVER_SENSE);
2466                 set_host_byte(cmd, DID_ABORT);
2467                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2468                 return 1;
2469         }
2470
2471         /* check ref tag */
2472         if (e_ref_tag != a_ref_tag) {
2473                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2474                     0x10, 0x3);
2475                 set_driver_byte(cmd, DRIVER_SENSE);
2476                 set_host_byte(cmd, DID_ABORT);
2477                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2478                 return 1;
2479         }
2480
2481         /* check appl tag */
2482         if (e_app_tag != a_app_tag) {
2483                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2484                     0x10, 0x2);
2485                 set_driver_byte(cmd, DRIVER_SENSE);
2486                 set_host_byte(cmd, DID_ABORT);
2487                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2488                 return 1;
2489         }
2490
2491         return 1;
2492 }
2493
2494 static void
2495 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2496                                   struct req_que *req, uint32_t index)
2497 {
2498         struct qla_hw_data *ha = vha->hw;
2499         srb_t *sp;
2500         uint16_t        comp_status;
2501         uint16_t        scsi_status;
2502         uint16_t thread_id;
2503         uint32_t rval = EXT_STATUS_OK;
2504         struct bsg_job *bsg_job = NULL;
2505         struct fc_bsg_request *bsg_request;
2506         struct fc_bsg_reply *bsg_reply;
2507         sts_entry_t *sts = pkt;
2508         struct sts_entry_24xx *sts24 = pkt;
2509
2510         /* Validate handle. */
2511         if (index >= req->num_outstanding_cmds) {
2512                 ql_log(ql_log_warn, vha, 0x70af,
2513                     "Invalid SCSI completion handle 0x%x.\n", index);
2514                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2515                 return;
2516         }
2517
2518         sp = req->outstanding_cmds[index];
2519         if (!sp) {
2520                 ql_log(ql_log_warn, vha, 0x70b0,
2521                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
2522                     req->id, index);
2523
2524                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2525                 return;
2526         }
2527
2528         /* Free outstanding command slot. */
2529         req->outstanding_cmds[index] = NULL;
2530         bsg_job = sp->u.bsg_job;
2531         bsg_request = bsg_job->request;
2532         bsg_reply = bsg_job->reply;
2533
2534         if (IS_FWI2_CAPABLE(ha)) {
2535                 comp_status = le16_to_cpu(sts24->comp_status);
2536                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2537         } else {
2538                 comp_status = le16_to_cpu(sts->comp_status);
2539                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2540         }
2541
2542         thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
2543         switch (comp_status) {
2544         case CS_COMPLETE:
2545                 if (scsi_status == 0) {
2546                         bsg_reply->reply_payload_rcv_len =
2547                                         bsg_job->reply_payload.payload_len;
2548                         vha->qla_stats.input_bytes +=
2549                                 bsg_reply->reply_payload_rcv_len;
2550                         vha->qla_stats.input_requests++;
2551                         rval = EXT_STATUS_OK;
2552                 }
2553                 goto done;
2554
2555         case CS_DATA_OVERRUN:
2556                 ql_dbg(ql_dbg_user, vha, 0x70b1,
2557                     "Command completed with data overrun thread_id=%d\n",
2558                     thread_id);
2559                 rval = EXT_STATUS_DATA_OVERRUN;
2560                 break;
2561
2562         case CS_DATA_UNDERRUN:
2563                 ql_dbg(ql_dbg_user, vha, 0x70b2,
2564                     "Command completed with data underrun thread_id=%d\n",
2565                     thread_id);
2566                 rval = EXT_STATUS_DATA_UNDERRUN;
2567                 break;
2568         case CS_BIDIR_RD_OVERRUN:
2569                 ql_dbg(ql_dbg_user, vha, 0x70b3,
2570                     "Command completed with read data overrun thread_id=%d\n",
2571                     thread_id);
2572                 rval = EXT_STATUS_DATA_OVERRUN;
2573                 break;
2574
2575         case CS_BIDIR_RD_WR_OVERRUN:
2576                 ql_dbg(ql_dbg_user, vha, 0x70b4,
2577                     "Command completed with read and write data overrun "
2578                     "thread_id=%d\n", thread_id);
2579                 rval = EXT_STATUS_DATA_OVERRUN;
2580                 break;
2581
2582         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
2583                 ql_dbg(ql_dbg_user, vha, 0x70b5,
2584                     "Command completed with read data over and write data "
2585                     "underrun thread_id=%d\n", thread_id);
2586                 rval = EXT_STATUS_DATA_OVERRUN;
2587                 break;
2588
2589         case CS_BIDIR_RD_UNDERRUN:
2590                 ql_dbg(ql_dbg_user, vha, 0x70b6,
2591                     "Command completed with read data underrun "
2592                     "thread_id=%d\n", thread_id);
2593                 rval = EXT_STATUS_DATA_UNDERRUN;
2594                 break;
2595
2596         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
2597                 ql_dbg(ql_dbg_user, vha, 0x70b7,
2598                     "Command completed with read data under and write data "
2599                     "overrun thread_id=%d\n", thread_id);
2600                 rval = EXT_STATUS_DATA_UNDERRUN;
2601                 break;
2602
2603         case CS_BIDIR_RD_WR_UNDERRUN:
2604                 ql_dbg(ql_dbg_user, vha, 0x70b8,
2605                     "Command completed with read and write data underrun "
2606                     "thread_id=%d\n", thread_id);
2607                 rval = EXT_STATUS_DATA_UNDERRUN;
2608                 break;
2609
2610         case CS_BIDIR_DMA:
2611                 ql_dbg(ql_dbg_user, vha, 0x70b9,
2612                     "Command completed with data DMA error thread_id=%d\n",
2613                     thread_id);
2614                 rval = EXT_STATUS_DMA_ERR;
2615                 break;
2616
2617         case CS_TIMEOUT:
2618                 ql_dbg(ql_dbg_user, vha, 0x70ba,
2619                     "Command completed with timeout thread_id=%d\n",
2620                     thread_id);
2621                 rval = EXT_STATUS_TIMEOUT;
2622                 break;
2623         default:
2624                 ql_dbg(ql_dbg_user, vha, 0x70bb,
2625                     "Command completed with completion status=0x%x "
2626                     "thread_id=%d\n", comp_status, thread_id);
2627                 rval = EXT_STATUS_ERR;
2628                 break;
2629         }
2630         bsg_reply->reply_payload_rcv_len = 0;
2631
2632 done:
2633         /* Return the vendor specific reply to API */
2634         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2635         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2636         /* Always return DID_OK, bsg will send the vendor specific response
2637          * in this case only */
2638         sp->done(sp, DID_OK << 16);
2639
2640 }
2641
2642 /**
2643  * qla2x00_status_entry() - Process a Status IOCB entry.
2644  * @vha: SCSI driver HA context
2645  * @rsp: response queue
2646  * @pkt: Entry pointer
2647  */
2648 static void
2649 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2650 {
2651         srb_t           *sp;
2652         fc_port_t       *fcport;
2653         struct scsi_cmnd *cp;
2654         sts_entry_t *sts = pkt;
2655         struct sts_entry_24xx *sts24 = pkt;
2656         uint16_t        comp_status;
2657         uint16_t        scsi_status;
2658         uint16_t        ox_id;
2659         uint8_t         lscsi_status;
2660         int32_t         resid;
2661         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2662             fw_resid_len;
2663         uint8_t         *rsp_info, *sense_data;
2664         struct qla_hw_data *ha = vha->hw;
2665         uint32_t handle;
2666         uint16_t que;
2667         struct req_que *req;
2668         int logit = 1;
2669         int res = 0;
2670         uint16_t state_flags = 0;
2671         uint16_t retry_delay = 0;
2672
2673         if (IS_FWI2_CAPABLE(ha)) {
2674                 comp_status = le16_to_cpu(sts24->comp_status);
2675                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2676                 state_flags = le16_to_cpu(sts24->state_flags);
2677         } else {
2678                 comp_status = le16_to_cpu(sts->comp_status);
2679                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2680         }
2681         handle = (uint32_t) LSW(sts->handle);
2682         que = MSW(sts->handle);
2683         req = ha->req_q_map[que];
2684
2685         /* Check for invalid queue pointer */
2686         if (req == NULL ||
2687             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2688                 ql_dbg(ql_dbg_io, vha, 0x3059,
2689                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2690                     "que=%u.\n", sts->handle, req, que);
2691                 return;
2692         }
2693
2694         /* Validate handle. */
2695         if (handle < req->num_outstanding_cmds) {
2696                 sp = req->outstanding_cmds[handle];
2697                 if (!sp) {
2698                         ql_dbg(ql_dbg_io, vha, 0x3075,
2699                             "%s(%ld): Already returned command for status handle (0x%x).\n",
2700                             __func__, vha->host_no, sts->handle);
2701                         return;
2702                 }
2703         } else {
2704                 ql_dbg(ql_dbg_io, vha, 0x3017,
2705                     "Invalid status handle, out of range (0x%x).\n",
2706                     sts->handle);
2707
2708                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2709                         if (IS_P3P_TYPE(ha))
2710                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2711                         else
2712                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2713                         qla2xxx_wake_dpc(vha);
2714                 }
2715                 return;
2716         }
2717
2718         if (sp->cmd_type != TYPE_SRB) {
2719                 req->outstanding_cmds[handle] = NULL;
2720                 ql_dbg(ql_dbg_io, vha, 0x3015,
2721                     "Unknown sp->cmd_type %x %p).\n",
2722                     sp->cmd_type, sp);
2723                 return;
2724         }
2725
2726         /* NVME completion. */
2727         if (sp->type == SRB_NVME_CMD) {
2728                 req->outstanding_cmds[handle] = NULL;
2729                 qla24xx_nvme_iocb_entry(vha, req, pkt, sp);
2730                 return;
2731         }
2732
2733         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2734                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2735                 return;
2736         }
2737
2738         /* Task Management completion. */
2739         if (sp->type == SRB_TM_CMD) {
2740                 qla24xx_tm_iocb_entry(vha, req, pkt);
2741                 return;
2742         }
2743
2744         /* Fast path completion. */
2745         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2746                 qla2x00_process_completed_request(vha, req, handle);
2747
2748                 return;
2749         }
2750
2751         req->outstanding_cmds[handle] = NULL;
2752         cp = GET_CMD_SP(sp);
2753         if (cp == NULL) {
2754                 ql_dbg(ql_dbg_io, vha, 0x3018,
2755                     "Command already returned (0x%x/%p).\n",
2756                     sts->handle, sp);
2757
2758                 return;
2759         }
2760
2761         lscsi_status = scsi_status & STATUS_MASK;
2762
2763         fcport = sp->fcport;
2764
2765         ox_id = 0;
2766         sense_len = par_sense_len = rsp_info_len = resid_len =
2767             fw_resid_len = 0;
2768         if (IS_FWI2_CAPABLE(ha)) {
2769                 u16 sts24_retry_delay = le16_to_cpu(sts24->retry_delay);
2770
2771                 if (scsi_status & SS_SENSE_LEN_VALID)
2772                         sense_len = le32_to_cpu(sts24->sense_len);
2773                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2774                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2775                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2776                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
2777                 if (comp_status == CS_DATA_UNDERRUN)
2778                         fw_resid_len = le32_to_cpu(sts24->residual_len);
2779                 rsp_info = sts24->data;
2780                 sense_data = sts24->data;
2781                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2782                 ox_id = le16_to_cpu(sts24->ox_id);
2783                 par_sense_len = sizeof(sts24->data);
2784                 /* Valid values of the retry delay timer are 0x1-0xffef */
2785                 if (sts24_retry_delay > 0 && sts24_retry_delay < 0xfff1) {
2786                         retry_delay = sts24_retry_delay & 0x3fff;
2787                         ql_dbg(ql_dbg_io, sp->vha, 0x3033,
2788                             "%s: scope=%#x retry_delay=%#x\n", __func__,
2789                             sts24_retry_delay >> 14, retry_delay);
2790                 }
2791         } else {
2792                 if (scsi_status & SS_SENSE_LEN_VALID)
2793                         sense_len = le16_to_cpu(sts->req_sense_length);
2794                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2795                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2796                 resid_len = le32_to_cpu(sts->residual_length);
2797                 rsp_info = sts->rsp_info;
2798                 sense_data = sts->req_sense_data;
2799                 par_sense_len = sizeof(sts->req_sense_data);
2800         }
2801
2802         /* Check for any FCP transport errors. */
2803         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2804                 /* Sense data lies beyond any FCP RESPONSE data. */
2805                 if (IS_FWI2_CAPABLE(ha)) {
2806                         sense_data += rsp_info_len;
2807                         par_sense_len -= rsp_info_len;
2808                 }
2809                 if (rsp_info_len > 3 && rsp_info[3]) {
2810                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2811                             "FCP I/O protocol failure (0x%x/0x%x).\n",
2812                             rsp_info_len, rsp_info[3]);
2813
2814                         res = DID_BUS_BUSY << 16;
2815                         goto out;
2816                 }
2817         }
2818
2819         /* Check for overrun. */
2820         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2821             scsi_status & SS_RESIDUAL_OVER)
2822                 comp_status = CS_DATA_OVERRUN;
2823
2824         /*
2825          * Check retry_delay_timer value if we receive a busy or
2826          * queue full.
2827          */
2828         if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2829             lscsi_status == SAM_STAT_BUSY)
2830                 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2831
2832         /*
2833          * Based on Host and scsi status generate status code for Linux
2834          */
2835         switch (comp_status) {
2836         case CS_COMPLETE:
2837         case CS_QUEUE_FULL:
2838                 if (scsi_status == 0) {
2839                         res = DID_OK << 16;
2840                         break;
2841                 }
2842                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2843                         resid = resid_len;
2844                         scsi_set_resid(cp, resid);
2845
2846                         if (!lscsi_status &&
2847                             ((unsigned)(scsi_bufflen(cp) - resid) <
2848                              cp->underflow)) {
2849                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2850                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
2851                                     resid, scsi_bufflen(cp));
2852
2853                                 res = DID_ERROR << 16;
2854                                 break;
2855                         }
2856                 }
2857                 res = DID_OK << 16 | lscsi_status;
2858
2859                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2860                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2861                             "QUEUE FULL detected.\n");
2862                         break;
2863                 }
2864                 logit = 0;
2865                 if (lscsi_status != SS_CHECK_CONDITION)
2866                         break;
2867
2868                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2869                 if (!(scsi_status & SS_SENSE_LEN_VALID))
2870                         break;
2871
2872                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2873                     rsp, res);
2874                 break;
2875
2876         case CS_DATA_UNDERRUN:
2877                 /* Use F/W calculated residual length. */
2878                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2879                 scsi_set_resid(cp, resid);
2880                 if (scsi_status & SS_RESIDUAL_UNDER) {
2881                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2882                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2883                                     "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
2884                                     resid, scsi_bufflen(cp));
2885
2886                                 res = DID_ERROR << 16 | lscsi_status;
2887                                 goto check_scsi_status;
2888                         }
2889
2890                         if (!lscsi_status &&
2891                             ((unsigned)(scsi_bufflen(cp) - resid) <
2892                             cp->underflow)) {
2893                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2894                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
2895                                     resid, scsi_bufflen(cp));
2896
2897                                 res = DID_ERROR << 16;
2898                                 break;
2899                         }
2900                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2901                             lscsi_status != SAM_STAT_BUSY) {
2902                         /*
2903                          * scsi status of task set and busy are considered to be
2904                          * task not completed.
2905                          */
2906
2907                         ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2908                             "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
2909                             resid, scsi_bufflen(cp));
2910
2911                         res = DID_ERROR << 16 | lscsi_status;
2912                         goto check_scsi_status;
2913                 } else {
2914                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2915                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2916                             scsi_status, lscsi_status);
2917                 }
2918
2919                 res = DID_OK << 16 | lscsi_status;
2920                 logit = 0;
2921
2922 check_scsi_status:
2923                 /*
2924                  * Check to see if SCSI Status is non zero. If so report SCSI
2925                  * Status.
2926                  */
2927                 if (lscsi_status != 0) {
2928                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2929                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2930                                     "QUEUE FULL detected.\n");
2931                                 logit = 1;
2932                                 break;
2933                         }
2934                         if (lscsi_status != SS_CHECK_CONDITION)
2935                                 break;
2936
2937                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2938                         if (!(scsi_status & SS_SENSE_LEN_VALID))
2939                                 break;
2940
2941                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
2942                             sense_len, rsp, res);
2943                 }
2944                 break;
2945
2946         case CS_PORT_LOGGED_OUT:
2947         case CS_PORT_CONFIG_CHG:
2948         case CS_PORT_BUSY:
2949         case CS_INCOMPLETE:
2950         case CS_PORT_UNAVAILABLE:
2951         case CS_TIMEOUT:
2952         case CS_RESET:
2953
2954                 /*
2955                  * We are going to have the fc class block the rport
2956                  * while we try to recover so instruct the mid layer
2957                  * to requeue until the class decides how to handle this.
2958                  */
2959                 res = DID_TRANSPORT_DISRUPTED << 16;
2960
2961                 if (comp_status == CS_TIMEOUT) {
2962                         if (IS_FWI2_CAPABLE(ha))
2963                                 break;
2964                         else if ((le16_to_cpu(sts->status_flags) &
2965                             SF_LOGOUT_SENT) == 0)
2966                                 break;
2967                 }
2968
2969                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2970                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2971                                 "Port to be marked lost on fcport=%02x%02x%02x, current "
2972                                 "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
2973                                 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2974                                 port_state_str[FCS_ONLINE],
2975                                 comp_status);
2976
2977                         qlt_schedule_sess_for_deletion(fcport);
2978                 }
2979
2980                 break;
2981
2982         case CS_ABORTED:
2983                 res = DID_RESET << 16;
2984                 break;
2985
2986         case CS_DIF_ERROR:
2987                 logit = qla2x00_handle_dif_error(sp, sts24);
2988                 res = cp->result;
2989                 break;
2990
2991         case CS_TRANSPORT:
2992                 res = DID_ERROR << 16;
2993
2994                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2995                         break;
2996
2997                 if (state_flags & BIT_4)
2998                         scmd_printk(KERN_WARNING, cp,
2999                             "Unsupported device '%s' found.\n",
3000                             cp->device->vendor);
3001                 break;
3002
3003         case CS_DMA:
3004                 ql_log(ql_log_info, fcport->vha, 0x3022,
3005                     "CS_DMA error: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%06x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3006                     comp_status, scsi_status, res, vha->host_no,
3007                     cp->device->id, cp->device->lun, fcport->d_id.b24,
3008                     ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3009                     resid_len, fw_resid_len, sp, cp);
3010                 ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
3011                     pkt, sizeof(*sts24));
3012                 res = DID_ERROR << 16;
3013                 break;
3014         default:
3015                 res = DID_ERROR << 16;
3016                 break;
3017         }
3018
3019 out:
3020         if (logit)
3021                 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
3022                     "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
3023                     "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
3024                     "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3025                     comp_status, scsi_status, res, vha->host_no,
3026                     cp->device->id, cp->device->lun, fcport->d_id.b.domain,
3027                     fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
3028                     cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3029                     resid_len, fw_resid_len, sp, cp);
3030
3031         if (rsp->status_srb == NULL)
3032                 sp->done(sp, res);
3033 }
3034
3035 /**
3036  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
3037  * @rsp: response queue
3038  * @pkt: Entry pointer
3039  *
3040  * Extended sense data.
3041  */
3042 static void
3043 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
3044 {
3045         uint8_t sense_sz = 0;
3046         struct qla_hw_data *ha = rsp->hw;
3047         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
3048         srb_t *sp = rsp->status_srb;
3049         struct scsi_cmnd *cp;
3050         uint32_t sense_len;
3051         uint8_t *sense_ptr;
3052
3053         if (!sp || !GET_CMD_SENSE_LEN(sp))
3054                 return;
3055
3056         sense_len = GET_CMD_SENSE_LEN(sp);
3057         sense_ptr = GET_CMD_SENSE_PTR(sp);
3058
3059         cp = GET_CMD_SP(sp);
3060         if (cp == NULL) {
3061                 ql_log(ql_log_warn, vha, 0x3025,
3062                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
3063
3064                 rsp->status_srb = NULL;
3065                 return;
3066         }
3067
3068         if (sense_len > sizeof(pkt->data))
3069                 sense_sz = sizeof(pkt->data);
3070         else
3071                 sense_sz = sense_len;
3072
3073         /* Move sense data. */
3074         if (IS_FWI2_CAPABLE(ha))
3075                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
3076         memcpy(sense_ptr, pkt->data, sense_sz);
3077         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
3078                 sense_ptr, sense_sz);
3079
3080         sense_len -= sense_sz;
3081         sense_ptr += sense_sz;
3082
3083         SET_CMD_SENSE_PTR(sp, sense_ptr);
3084         SET_CMD_SENSE_LEN(sp, sense_len);
3085
3086         /* Place command on done queue. */
3087         if (sense_len == 0) {
3088                 rsp->status_srb = NULL;
3089                 sp->done(sp, cp->result);
3090         }
3091 }
3092
3093 /**
3094  * qla2x00_error_entry() - Process an error entry.
3095  * @vha: SCSI driver HA context
3096  * @rsp: response queue
3097  * @pkt: Entry pointer
3098  * return : 1=allow further error analysis. 0=no additional error analysis.
3099  */
3100 static int
3101 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
3102 {
3103         srb_t *sp;
3104         struct qla_hw_data *ha = vha->hw;
3105         const char func[] = "ERROR-IOCB";
3106         uint16_t que = MSW(pkt->handle);
3107         struct req_que *req = NULL;
3108         int res = DID_ERROR << 16;
3109
3110         ql_dbg(ql_dbg_async, vha, 0x502a,
3111             "iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
3112             pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
3113
3114         if (que >= ha->max_req_queues || !ha->req_q_map[que])
3115                 goto fatal;
3116
3117         req = ha->req_q_map[que];
3118
3119         if (pkt->entry_status & RF_BUSY)
3120                 res = DID_BUS_BUSY << 16;
3121
3122         if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
3123                 return 0;
3124
3125         switch (pkt->entry_type) {
3126         case NOTIFY_ACK_TYPE:
3127         case STATUS_TYPE:
3128         case STATUS_CONT_TYPE:
3129         case LOGINOUT_PORT_IOCB_TYPE:
3130         case CT_IOCB_TYPE:
3131         case ELS_IOCB_TYPE:
3132         case ABORT_IOCB_TYPE:
3133         case MBX_IOCB_TYPE:
3134         default:
3135                 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3136                 if (sp) {
3137                         sp->done(sp, res);
3138                         return 0;
3139                 }
3140                 break;
3141
3142         case ABTS_RESP_24XX:
3143         case CTIO_TYPE7:
3144         case CTIO_CRC2:
3145                 return 1;
3146         }
3147 fatal:
3148         ql_log(ql_log_warn, vha, 0x5030,
3149             "Error entry - invalid handle/queue (%04x).\n", que);
3150         return 0;
3151 }
3152
3153 /**
3154  * qla24xx_mbx_completion() - Process mailbox command completions.
3155  * @vha: SCSI driver HA context
3156  * @mb0: Mailbox0 register
3157  */
3158 static void
3159 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
3160 {
3161         uint16_t        cnt;
3162         uint32_t        mboxes;
3163         __le16 __iomem *wptr;
3164         struct qla_hw_data *ha = vha->hw;
3165         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3166
3167         /* Read all mbox registers? */
3168         WARN_ON_ONCE(ha->mbx_count > 32);
3169         mboxes = (1ULL << ha->mbx_count) - 1;
3170         if (!ha->mcp)
3171                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
3172         else
3173                 mboxes = ha->mcp->in_mb;
3174
3175         /* Load return mailbox registers. */
3176         ha->flags.mbox_int = 1;
3177         ha->mailbox_out[0] = mb0;
3178         mboxes >>= 1;
3179         wptr = &reg->mailbox1;
3180
3181         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
3182                 if (mboxes & BIT_0)
3183                         ha->mailbox_out[cnt] = rd_reg_word(wptr);
3184
3185                 mboxes >>= 1;
3186                 wptr++;
3187         }
3188 }
3189
3190 static void
3191 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
3192         struct abort_entry_24xx *pkt)
3193 {
3194         const char func[] = "ABT_IOCB";
3195         srb_t *sp;
3196         struct srb_iocb *abt;
3197
3198         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3199         if (!sp)
3200                 return;
3201
3202         abt = &sp->u.iocb_cmd;
3203         abt->u.abt.comp_status = pkt->nport_handle;
3204         sp->done(sp, 0);
3205 }
3206
3207 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
3208     struct pt_ls4_request *pkt, struct req_que *req)
3209 {
3210         srb_t *sp;
3211         const char func[] = "LS4_IOCB";
3212         uint16_t comp_status;
3213
3214         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3215         if (!sp)
3216                 return;
3217
3218         comp_status = le16_to_cpu(pkt->status);
3219         sp->done(sp, comp_status);
3220 }
3221
3222 /**
3223  * qla24xx_process_response_queue() - Process response queue entries.
3224  * @vha: SCSI driver HA context
3225  * @rsp: response queue
3226  */
3227 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
3228         struct rsp_que *rsp)
3229 {
3230         struct sts_entry_24xx *pkt;
3231         struct qla_hw_data *ha = vha->hw;
3232
3233         if (!ha->flags.fw_started)
3234                 return;
3235
3236         if (rsp->qpair->cpuid != smp_processor_id())
3237                 qla_cpu_update(rsp->qpair, smp_processor_id());
3238
3239         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
3240                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
3241
3242                 rsp->ring_index++;
3243                 if (rsp->ring_index == rsp->length) {
3244                         rsp->ring_index = 0;
3245                         rsp->ring_ptr = rsp->ring;
3246                 } else {
3247                         rsp->ring_ptr++;
3248                 }
3249
3250                 if (pkt->entry_status != 0) {
3251                         if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
3252                                 goto process_err;
3253
3254                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3255                         wmb();
3256                         continue;
3257                 }
3258 process_err:
3259
3260                 switch (pkt->entry_type) {
3261                 case STATUS_TYPE:
3262                         qla2x00_status_entry(vha, rsp, pkt);
3263                         break;
3264                 case STATUS_CONT_TYPE:
3265                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
3266                         break;
3267                 case VP_RPT_ID_IOCB_TYPE:
3268                         qla24xx_report_id_acquisition(vha,
3269                             (struct vp_rpt_id_entry_24xx *)pkt);
3270                         break;
3271                 case LOGINOUT_PORT_IOCB_TYPE:
3272                         qla24xx_logio_entry(vha, rsp->req,
3273                             (struct logio_entry_24xx *)pkt);
3274                         break;
3275                 case CT_IOCB_TYPE:
3276                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
3277                         break;
3278                 case ELS_IOCB_TYPE:
3279                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
3280                         break;
3281                 case ABTS_RECV_24XX:
3282                         if (qla_ini_mode_enabled(vha)) {
3283                                 qla24xx_purex_iocb(vha, pkt,
3284                                     qla24xx_process_abts);
3285                                 break;
3286                         }
3287                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3288                             IS_QLA28XX(ha)) {
3289                                 /* ensure that the ATIO queue is empty */
3290                                 qlt_handle_abts_recv(vha, rsp,
3291                                     (response_t *)pkt);
3292                                 break;
3293                         } else {
3294                                 qlt_24xx_process_atio_queue(vha, 1);
3295                         }
3296                         /* fall through */
3297                 case ABTS_RESP_24XX:
3298                 case CTIO_TYPE7:
3299                 case CTIO_CRC2:
3300                         qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
3301                         break;
3302                 case PT_LS4_REQUEST:
3303                         qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
3304                             rsp->req);
3305                         break;
3306                 case NOTIFY_ACK_TYPE:
3307                         if (pkt->handle == QLA_TGT_SKIP_HANDLE)
3308                                 qlt_response_pkt_all_vps(vha, rsp,
3309                                     (response_t *)pkt);
3310                         else
3311                                 qla24xxx_nack_iocb_entry(vha, rsp->req,
3312                                         (struct nack_to_isp *)pkt);
3313                         break;
3314                 case MARKER_TYPE:
3315                         /* Do nothing in this case, this check is to prevent it
3316                          * from falling into default case
3317                          */
3318                         break;
3319                 case ABORT_IOCB_TYPE:
3320                         qla24xx_abort_iocb_entry(vha, rsp->req,
3321                             (struct abort_entry_24xx *)pkt);
3322                         break;
3323                 case MBX_IOCB_TYPE:
3324                         qla24xx_mbx_iocb_entry(vha, rsp->req,
3325                             (struct mbx_24xx_entry *)pkt);
3326                         break;
3327                 case VP_CTRL_IOCB_TYPE:
3328                         qla_ctrlvp_completed(vha, rsp->req,
3329                             (struct vp_ctrl_entry_24xx *)pkt);
3330                         break;
3331                 case PUREX_IOCB_TYPE:
3332                 {
3333                         struct purex_entry_24xx *purex = (void *)pkt;
3334
3335                         if (purex->els_frame_payload[3] != ELS_COMMAND_RDP) {
3336                                 ql_dbg(ql_dbg_init, vha, 0x5091,
3337                                     "Discarding ELS Request opcode %#x...\n",
3338                                     purex->els_frame_payload[3]);
3339                                 break;
3340                         }
3341                         qla24xx_purex_iocb(vha, pkt, qla24xx_process_purex_rdp);
3342                         break;
3343                 }
3344                 default:
3345                         /* Type Not Supported. */
3346                         ql_dbg(ql_dbg_async, vha, 0x5042,
3347                             "Received unknown response pkt type %x "
3348                             "entry status=%x.\n",
3349                             pkt->entry_type, pkt->entry_status);
3350                         break;
3351                 }
3352                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3353                 wmb();
3354         }
3355
3356         /* Adjust ring index */
3357         if (IS_P3P_TYPE(ha)) {
3358                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
3359
3360                 wrt_reg_dword(&reg->rsp_q_out[0], rsp->ring_index);
3361         } else {
3362                 wrt_reg_dword(rsp->rsp_q_out, rsp->ring_index);
3363         }
3364 }
3365
3366 static void
3367 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
3368 {
3369         int rval;
3370         uint32_t cnt;
3371         struct qla_hw_data *ha = vha->hw;
3372         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3373
3374         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3375             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3376                 return;
3377
3378         rval = QLA_SUCCESS;
3379         wrt_reg_dword(&reg->iobase_addr, 0x7C00);
3380         rd_reg_dword(&reg->iobase_addr);
3381         wrt_reg_dword(&reg->iobase_window, 0x0001);
3382         for (cnt = 10000; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3383             rval == QLA_SUCCESS; cnt--) {
3384                 if (cnt) {
3385                         wrt_reg_dword(&reg->iobase_window, 0x0001);
3386                         udelay(10);
3387                 } else
3388                         rval = QLA_FUNCTION_TIMEOUT;
3389         }
3390         if (rval == QLA_SUCCESS)
3391                 goto next_test;
3392
3393         rval = QLA_SUCCESS;
3394         wrt_reg_dword(&reg->iobase_window, 0x0003);
3395         for (cnt = 100; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3396             rval == QLA_SUCCESS; cnt--) {
3397                 if (cnt) {
3398                         wrt_reg_dword(&reg->iobase_window, 0x0003);
3399                         udelay(10);
3400                 } else
3401                         rval = QLA_FUNCTION_TIMEOUT;
3402         }
3403         if (rval != QLA_SUCCESS)
3404                 goto done;
3405
3406 next_test:
3407         if (rd_reg_dword(&reg->iobase_c8) & BIT_3)
3408                 ql_log(ql_log_info, vha, 0x504c,
3409                     "Additional code -- 0x55AA.\n");
3410
3411 done:
3412         wrt_reg_dword(&reg->iobase_window, 0x0000);
3413         rd_reg_dword(&reg->iobase_window);
3414 }
3415
3416 /**
3417  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
3418  * @irq: interrupt number
3419  * @dev_id: SCSI driver HA context
3420  *
3421  * Called by system whenever the host adapter generates an interrupt.
3422  *
3423  * Returns handled flag.
3424  */
3425 irqreturn_t
3426 qla24xx_intr_handler(int irq, void *dev_id)
3427 {
3428         scsi_qla_host_t *vha;
3429         struct qla_hw_data *ha;
3430         struct device_reg_24xx __iomem *reg;
3431         int             status;
3432         unsigned long   iter;
3433         uint32_t        stat;
3434         uint32_t        hccr;
3435         uint16_t        mb[8];
3436         struct rsp_que *rsp;
3437         unsigned long   flags;
3438         bool process_atio = false;
3439
3440         rsp = (struct rsp_que *) dev_id;
3441         if (!rsp) {
3442                 ql_log(ql_log_info, NULL, 0x5059,
3443                     "%s: NULL response queue pointer.\n", __func__);
3444                 return IRQ_NONE;
3445         }
3446
3447         ha = rsp->hw;
3448         reg = &ha->iobase->isp24;
3449         status = 0;
3450
3451         if (unlikely(pci_channel_offline(ha->pdev)))
3452                 return IRQ_HANDLED;
3453
3454         spin_lock_irqsave(&ha->hardware_lock, flags);
3455         vha = pci_get_drvdata(ha->pdev);
3456         for (iter = 50; iter--; ) {
3457                 stat = rd_reg_dword(&reg->host_status);
3458                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3459                         break;
3460                 if (stat & HSRX_RISC_PAUSED) {
3461                         if (unlikely(pci_channel_offline(ha->pdev)))
3462                                 break;
3463
3464                         hccr = rd_reg_dword(&reg->hccr);
3465
3466                         ql_log(ql_log_warn, vha, 0x504b,
3467                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3468                             hccr);
3469
3470                         qla2xxx_check_risc_status(vha);
3471
3472                         ha->isp_ops->fw_dump(vha);
3473                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3474                         break;
3475                 } else if ((stat & HSRX_RISC_INT) == 0)
3476                         break;
3477
3478                 switch (stat & 0xff) {
3479                 case INTR_ROM_MB_SUCCESS:
3480                 case INTR_ROM_MB_FAILED:
3481                 case INTR_MB_SUCCESS:
3482                 case INTR_MB_FAILED:
3483                         qla24xx_mbx_completion(vha, MSW(stat));
3484                         status |= MBX_INTERRUPT;
3485
3486                         break;
3487                 case INTR_ASYNC_EVENT:
3488                         mb[0] = MSW(stat);
3489                         mb[1] = rd_reg_word(&reg->mailbox1);
3490                         mb[2] = rd_reg_word(&reg->mailbox2);
3491                         mb[3] = rd_reg_word(&reg->mailbox3);
3492                         qla2x00_async_event(vha, rsp, mb);
3493                         break;
3494                 case INTR_RSP_QUE_UPDATE:
3495                 case INTR_RSP_QUE_UPDATE_83XX:
3496                         qla24xx_process_response_queue(vha, rsp);
3497                         break;
3498                 case INTR_ATIO_QUE_UPDATE_27XX:
3499                 case INTR_ATIO_QUE_UPDATE:
3500                         process_atio = true;
3501                         break;
3502                 case INTR_ATIO_RSP_QUE_UPDATE:
3503                         process_atio = true;
3504                         qla24xx_process_response_queue(vha, rsp);
3505                         break;
3506                 default:
3507                         ql_dbg(ql_dbg_async, vha, 0x504f,
3508                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
3509                         break;
3510                 }
3511                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3512                 rd_reg_dword_relaxed(&reg->hccr);
3513                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
3514                         ndelay(3500);
3515         }
3516         qla2x00_handle_mbx_completion(ha, status);
3517         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3518
3519         if (process_atio) {
3520                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3521                 qlt_24xx_process_atio_queue(vha, 0);
3522                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3523         }
3524
3525         return IRQ_HANDLED;
3526 }
3527
3528 static irqreturn_t
3529 qla24xx_msix_rsp_q(int irq, void *dev_id)
3530 {
3531         struct qla_hw_data *ha;
3532         struct rsp_que *rsp;
3533         struct device_reg_24xx __iomem *reg;
3534         struct scsi_qla_host *vha;
3535         unsigned long flags;
3536
3537         rsp = (struct rsp_que *) dev_id;
3538         if (!rsp) {
3539                 ql_log(ql_log_info, NULL, 0x505a,
3540                     "%s: NULL response queue pointer.\n", __func__);
3541                 return IRQ_NONE;
3542         }
3543         ha = rsp->hw;
3544         reg = &ha->iobase->isp24;
3545
3546         spin_lock_irqsave(&ha->hardware_lock, flags);
3547
3548         vha = pci_get_drvdata(ha->pdev);
3549         qla24xx_process_response_queue(vha, rsp);
3550         if (!ha->flags.disable_msix_handshake) {
3551                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3552                 rd_reg_dword_relaxed(&reg->hccr);
3553         }
3554         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3555
3556         return IRQ_HANDLED;
3557 }
3558
3559 static irqreturn_t
3560 qla24xx_msix_default(int irq, void *dev_id)
3561 {
3562         scsi_qla_host_t *vha;
3563         struct qla_hw_data *ha;
3564         struct rsp_que *rsp;
3565         struct device_reg_24xx __iomem *reg;
3566         int             status;
3567         uint32_t        stat;
3568         uint32_t        hccr;
3569         uint16_t        mb[8];
3570         unsigned long flags;
3571         bool process_atio = false;
3572
3573         rsp = (struct rsp_que *) dev_id;
3574         if (!rsp) {
3575                 ql_log(ql_log_info, NULL, 0x505c,
3576                     "%s: NULL response queue pointer.\n", __func__);
3577                 return IRQ_NONE;
3578         }
3579         ha = rsp->hw;
3580         reg = &ha->iobase->isp24;
3581         status = 0;
3582
3583         spin_lock_irqsave(&ha->hardware_lock, flags);
3584         vha = pci_get_drvdata(ha->pdev);
3585         do {
3586                 stat = rd_reg_dword(&reg->host_status);
3587                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3588                         break;
3589                 if (stat & HSRX_RISC_PAUSED) {
3590                         if (unlikely(pci_channel_offline(ha->pdev)))
3591                                 break;
3592
3593                         hccr = rd_reg_dword(&reg->hccr);
3594
3595                         ql_log(ql_log_info, vha, 0x5050,
3596                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3597                             hccr);
3598
3599                         qla2xxx_check_risc_status(vha);
3600
3601                         ha->isp_ops->fw_dump(vha);
3602                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3603                         break;
3604                 } else if ((stat & HSRX_RISC_INT) == 0)
3605                         break;
3606
3607                 switch (stat & 0xff) {
3608                 case INTR_ROM_MB_SUCCESS:
3609                 case INTR_ROM_MB_FAILED:
3610                 case INTR_MB_SUCCESS:
3611                 case INTR_MB_FAILED:
3612                         qla24xx_mbx_completion(vha, MSW(stat));
3613                         status |= MBX_INTERRUPT;
3614
3615                         break;
3616                 case INTR_ASYNC_EVENT:
3617                         mb[0] = MSW(stat);
3618                         mb[1] = rd_reg_word(&reg->mailbox1);
3619                         mb[2] = rd_reg_word(&reg->mailbox2);
3620                         mb[3] = rd_reg_word(&reg->mailbox3);
3621                         qla2x00_async_event(vha, rsp, mb);
3622                         break;
3623                 case INTR_RSP_QUE_UPDATE:
3624                 case INTR_RSP_QUE_UPDATE_83XX:
3625                         qla24xx_process_response_queue(vha, rsp);
3626                         break;
3627                 case INTR_ATIO_QUE_UPDATE_27XX:
3628                 case INTR_ATIO_QUE_UPDATE:
3629                         process_atio = true;
3630                         break;
3631                 case INTR_ATIO_RSP_QUE_UPDATE:
3632                         process_atio = true;
3633                         qla24xx_process_response_queue(vha, rsp);
3634                         break;
3635                 default:
3636                         ql_dbg(ql_dbg_async, vha, 0x5051,
3637                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
3638                         break;
3639                 }
3640                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3641         } while (0);
3642         qla2x00_handle_mbx_completion(ha, status);
3643         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3644
3645         if (process_atio) {
3646                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3647                 qlt_24xx_process_atio_queue(vha, 0);
3648                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3649         }
3650
3651         return IRQ_HANDLED;
3652 }
3653
3654 irqreturn_t
3655 qla2xxx_msix_rsp_q(int irq, void *dev_id)
3656 {
3657         struct qla_hw_data *ha;
3658         struct qla_qpair *qpair;
3659
3660         qpair = dev_id;
3661         if (!qpair) {
3662                 ql_log(ql_log_info, NULL, 0x505b,
3663                     "%s: NULL response queue pointer.\n", __func__);
3664                 return IRQ_NONE;
3665         }
3666         ha = qpair->hw;
3667
3668         queue_work(ha->wq, &qpair->q_work);
3669
3670         return IRQ_HANDLED;
3671 }
3672
3673 irqreturn_t
3674 qla2xxx_msix_rsp_q_hs(int irq, void *dev_id)
3675 {
3676         struct qla_hw_data *ha;
3677         struct qla_qpair *qpair;
3678         struct device_reg_24xx __iomem *reg;
3679         unsigned long flags;
3680
3681         qpair = dev_id;
3682         if (!qpair) {
3683                 ql_log(ql_log_info, NULL, 0x505b,
3684                     "%s: NULL response queue pointer.\n", __func__);
3685                 return IRQ_NONE;
3686         }
3687         ha = qpair->hw;
3688
3689         reg = &ha->iobase->isp24;
3690         spin_lock_irqsave(&ha->hardware_lock, flags);
3691         wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3692         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3693
3694         queue_work(ha->wq, &qpair->q_work);
3695
3696         return IRQ_HANDLED;
3697 }
3698
3699 /* Interrupt handling helpers. */
3700
3701 struct qla_init_msix_entry {
3702         const char *name;
3703         irq_handler_t handler;
3704 };
3705
3706 static const struct qla_init_msix_entry msix_entries[] = {
3707         { "default", qla24xx_msix_default },
3708         { "rsp_q", qla24xx_msix_rsp_q },
3709         { "atio_q", qla83xx_msix_atio_q },
3710         { "qpair_multiq", qla2xxx_msix_rsp_q },
3711         { "qpair_multiq_hs", qla2xxx_msix_rsp_q_hs },
3712 };
3713
3714 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
3715         { "qla2xxx (default)", qla82xx_msix_default },
3716         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3717 };
3718
3719 static int
3720 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3721 {
3722         int i, ret;
3723         struct qla_msix_entry *qentry;
3724         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3725         int min_vecs = QLA_BASE_VECTORS;
3726         struct irq_affinity desc = {
3727                 .pre_vectors = QLA_BASE_VECTORS,
3728         };
3729
3730         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
3731             IS_ATIO_MSIX_CAPABLE(ha)) {
3732                 desc.pre_vectors++;
3733                 min_vecs++;
3734         }
3735
3736         if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
3737                 /* user wants to control IRQ setting for target mode */
3738                 ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
3739                     ha->msix_count, PCI_IRQ_MSIX);
3740         } else
3741                 ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
3742                     ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
3743                     &desc);
3744
3745         if (ret < 0) {
3746                 ql_log(ql_log_fatal, vha, 0x00c7,
3747                     "MSI-X: Failed to enable support, "
3748                     "giving   up -- %d/%d.\n",
3749                     ha->msix_count, ret);
3750                 goto msix_out;
3751         } else if (ret < ha->msix_count) {
3752                 ql_log(ql_log_info, vha, 0x00c6,
3753                     "MSI-X: Using %d vectors\n", ret);
3754                 ha->msix_count = ret;
3755                 /* Recalculate queue values */
3756                 if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
3757                         ha->max_req_queues = ha->msix_count - 1;
3758
3759                         /* ATIOQ needs 1 vector. That's 1 less QPair */
3760                         if (QLA_TGT_MODE_ENABLED())
3761                                 ha->max_req_queues--;
3762
3763                         ha->max_rsp_queues = ha->max_req_queues;
3764
3765                         ha->max_qpairs = ha->max_req_queues - 1;
3766                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
3767                             "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
3768                 }
3769         }
3770         vha->irq_offset = desc.pre_vectors;
3771         ha->msix_entries = kcalloc(ha->msix_count,
3772                                    sizeof(struct qla_msix_entry),
3773                                    GFP_KERNEL);
3774         if (!ha->msix_entries) {
3775                 ql_log(ql_log_fatal, vha, 0x00c8,
3776                     "Failed to allocate memory for ha->msix_entries.\n");
3777                 ret = -ENOMEM;
3778                 goto free_irqs;
3779         }
3780         ha->flags.msix_enabled = 1;
3781
3782         for (i = 0; i < ha->msix_count; i++) {
3783                 qentry = &ha->msix_entries[i];
3784                 qentry->vector = pci_irq_vector(ha->pdev, i);
3785                 qentry->entry = i;
3786                 qentry->have_irq = 0;
3787                 qentry->in_use = 0;
3788                 qentry->handle = NULL;
3789         }
3790
3791         /* Enable MSI-X vectors for the base queue */
3792         for (i = 0; i < QLA_BASE_VECTORS; i++) {
3793                 qentry = &ha->msix_entries[i];
3794                 qentry->handle = rsp;
3795                 rsp->msix = qentry;
3796                 scnprintf(qentry->name, sizeof(qentry->name),
3797                     "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
3798                 if (IS_P3P_TYPE(ha))
3799                         ret = request_irq(qentry->vector,
3800                                 qla82xx_msix_entries[i].handler,
3801                                 0, qla82xx_msix_entries[i].name, rsp);
3802                 else
3803                         ret = request_irq(qentry->vector,
3804                                 msix_entries[i].handler,
3805                                 0, qentry->name, rsp);
3806                 if (ret)
3807                         goto msix_register_fail;
3808                 qentry->have_irq = 1;
3809                 qentry->in_use = 1;
3810         }
3811
3812         /*
3813          * If target mode is enable, also request the vector for the ATIO
3814          * queue.
3815          */
3816         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
3817             IS_ATIO_MSIX_CAPABLE(ha)) {
3818                 qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
3819                 rsp->msix = qentry;
3820                 qentry->handle = rsp;
3821                 scnprintf(qentry->name, sizeof(qentry->name),
3822                     "qla2xxx%lu_%s", vha->host_no,
3823                     msix_entries[QLA_ATIO_VECTOR].name);
3824                 qentry->in_use = 1;
3825                 ret = request_irq(qentry->vector,
3826                         msix_entries[QLA_ATIO_VECTOR].handler,
3827                         0, qentry->name, rsp);
3828                 qentry->have_irq = 1;
3829         }
3830
3831 msix_register_fail:
3832         if (ret) {
3833                 ql_log(ql_log_fatal, vha, 0x00cb,
3834                     "MSI-X: unable to register handler -- %x/%d.\n",
3835                     qentry->vector, ret);
3836                 qla2x00_free_irqs(vha);
3837                 ha->mqenable = 0;
3838                 goto msix_out;
3839         }
3840
3841         /* Enable MSI-X vector for response queue update for queue 0 */
3842         if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3843                 if (ha->msixbase && ha->mqiobase &&
3844                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3845                      ql2xmqsupport))
3846                         ha->mqenable = 1;
3847         } else
3848                 if (ha->mqiobase &&
3849                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3850                      ql2xmqsupport))
3851                         ha->mqenable = 1;
3852         ql_dbg(ql_dbg_multiq, vha, 0xc005,
3853             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3854             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3855         ql_dbg(ql_dbg_init, vha, 0x0055,
3856             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3857             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3858
3859 msix_out:
3860         return ret;
3861
3862 free_irqs:
3863         pci_free_irq_vectors(ha->pdev);
3864         goto msix_out;
3865 }
3866
3867 int
3868 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3869 {
3870         int ret = QLA_FUNCTION_FAILED;
3871         device_reg_t *reg = ha->iobase;
3872         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3873
3874         /* If possible, enable MSI-X. */
3875         if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
3876             !IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
3877             !IS_QLAFX00(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha)))
3878                 goto skip_msi;
3879
3880         if (ql2xenablemsix == 2)
3881                 goto skip_msix;
3882
3883         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3884                 (ha->pdev->subsystem_device == 0x7040 ||
3885                 ha->pdev->subsystem_device == 0x7041 ||
3886                 ha->pdev->subsystem_device == 0x1705)) {
3887                 ql_log(ql_log_warn, vha, 0x0034,
3888                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3889                         ha->pdev->subsystem_vendor,
3890                         ha->pdev->subsystem_device);
3891                 goto skip_msi;
3892         }
3893
3894         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3895                 ql_log(ql_log_warn, vha, 0x0035,
3896                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3897                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3898                 goto skip_msix;
3899         }
3900
3901         ret = qla24xx_enable_msix(ha, rsp);
3902         if (!ret) {
3903                 ql_dbg(ql_dbg_init, vha, 0x0036,
3904                     "MSI-X: Enabled (0x%X, 0x%X).\n",
3905                     ha->chip_revision, ha->fw_attributes);
3906                 goto clear_risc_ints;
3907         }
3908
3909 skip_msix:
3910
3911         ql_log(ql_log_info, vha, 0x0037,
3912             "Falling back-to MSI mode -- ret=%d.\n", ret);
3913
3914         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3915             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3916             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3917                 goto skip_msi;
3918
3919         ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
3920         if (ret > 0) {
3921                 ql_dbg(ql_dbg_init, vha, 0x0038,
3922                     "MSI: Enabled.\n");
3923                 ha->flags.msi_enabled = 1;
3924         } else
3925                 ql_log(ql_log_warn, vha, 0x0039,
3926                     "Falling back-to INTa mode -- ret=%d.\n", ret);
3927 skip_msi:
3928
3929         /* Skip INTx on ISP82xx. */
3930         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3931                 return QLA_FUNCTION_FAILED;
3932
3933         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3934             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3935             QLA2XXX_DRIVER_NAME, rsp);
3936         if (ret) {
3937                 ql_log(ql_log_warn, vha, 0x003a,
3938                     "Failed to reserve interrupt %d already in use.\n",
3939                     ha->pdev->irq);
3940                 goto fail;
3941         } else if (!ha->flags.msi_enabled) {
3942                 ql_dbg(ql_dbg_init, vha, 0x0125,
3943                     "INTa mode: Enabled.\n");
3944                 ha->flags.mr_intr_valid = 1;
3945         }
3946
3947 clear_risc_ints:
3948         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3949                 goto fail;
3950
3951         spin_lock_irq(&ha->hardware_lock);
3952         wrt_reg_word(&reg->isp.semaphore, 0);
3953         spin_unlock_irq(&ha->hardware_lock);
3954
3955 fail:
3956         return ret;
3957 }
3958
3959 void
3960 qla2x00_free_irqs(scsi_qla_host_t *vha)
3961 {
3962         struct qla_hw_data *ha = vha->hw;
3963         struct rsp_que *rsp;
3964         struct qla_msix_entry *qentry;
3965         int i;
3966
3967         /*
3968          * We need to check that ha->rsp_q_map is valid in case we are called
3969          * from a probe failure context.
3970          */
3971         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3972                 goto free_irqs;
3973         rsp = ha->rsp_q_map[0];
3974
3975         if (ha->flags.msix_enabled) {
3976                 for (i = 0; i < ha->msix_count; i++) {
3977                         qentry = &ha->msix_entries[i];
3978                         if (qentry->have_irq) {
3979                                 irq_set_affinity_notifier(qentry->vector, NULL);
3980                                 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
3981                         }
3982                 }
3983                 kfree(ha->msix_entries);
3984                 ha->msix_entries = NULL;
3985                 ha->flags.msix_enabled = 0;
3986                 ql_dbg(ql_dbg_init, vha, 0x0042,
3987                         "Disabled MSI-X.\n");
3988         } else {
3989                 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
3990         }
3991
3992 free_irqs:
3993         pci_free_irq_vectors(ha->pdev);
3994 }
3995
3996 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
3997         struct qla_msix_entry *msix, int vector_type)
3998 {
3999         const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
4000         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4001         int ret;
4002
4003         scnprintf(msix->name, sizeof(msix->name),
4004             "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
4005         ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
4006         if (ret) {
4007                 ql_log(ql_log_fatal, vha, 0x00e6,
4008                     "MSI-X: Unable to register handler -- %x/%d.\n",
4009                     msix->vector, ret);
4010                 return ret;
4011         }
4012         msix->have_irq = 1;
4013         msix->handle = qpair;
4014         return ret;
4015 }