drivers/scsi/qla2xxx/qla_isr.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * QLogic Fibre Channel HBA Driver
   4  * Copyright (c)  2003-2014 QLogic Corporation
   5  */
   6 #include "qla_def.h"
   7 #include "qla_target.h"
   8 #include "qla_gbl.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 static void qla27xx_process_purex_fpin(struct scsi_qla_host *vha,
  26         struct purex_item *item);
  27 static struct purex_item *qla24xx_alloc_purex_item(scsi_qla_host_t *vha,
  28         uint16_t size);
  29 static struct purex_item *qla24xx_copy_std_pkt(struct scsi_qla_host *vha,
  30         void *pkt);
  31 static struct purex_item *qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha,
  32         void **pkt, struct rsp_que **rsp);
  33
  34 static void
  35 qla27xx_process_purex_fpin(struct scsi_qla_host *vha, struct purex_item *item)
  36 {
  37         void *pkt = &item->iocb;
  38         uint16_t pkt_size = item->size;
  39
  40         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508d,
  41                "%s: Enter\n", __func__);
  42
  43         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508e,
  44                "-------- ELS REQ -------\n");
  45         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x508f,
  46                        pkt, pkt_size);
  47
  48         fc_host_fpin_rcv(vha->host, pkt_size, (char *)pkt);
  49 }
  50
  51 const char *const port_state_str[] = {
  52         "Unknown",
  53         "UNCONFIGURED",
  54         "DEAD",
  55         "LOST",
  56         "ONLINE"
  57 };
  58
  59 static void
  60 qla24xx_process_abts(struct scsi_qla_host *vha, struct purex_item *pkt)
  61 {
  62         struct abts_entry_24xx *abts =
  63             (struct abts_entry_24xx *)&pkt->iocb;
  64         struct qla_hw_data *ha = vha->hw;
  65         struct els_entry_24xx *rsp_els;
  66         struct abts_entry_24xx *abts_rsp;
  67         dma_addr_t dma;
  68         uint32_t fctl;
  69         int rval;
  70
  71         ql_dbg(ql_dbg_init, vha, 0x0286, "%s: entered.\n", __func__);
  72
  73         ql_log(ql_log_warn, vha, 0x0287,
  74             "Processing ABTS xchg=%#x oxid=%#x rxid=%#x seqid=%#x seqcnt=%#x\n",
  75             abts->rx_xch_addr_to_abort, abts->ox_id, abts->rx_id,
  76             abts->seq_id, abts->seq_cnt);
  77         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  78             "-------- ABTS RCV -------\n");
  79         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  80             (uint8_t *)abts, sizeof(*abts));
  81
  82         rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els), &dma,
  83             GFP_KERNEL);
  84         if (!rsp_els) {
  85                 ql_log(ql_log_warn, vha, 0x0287,
  86                     "Failed allocate dma buffer ABTS/ELS RSP.\n");
  87                 return;
  88         }
  89
  90         /* terminate exchange */
  91         rsp_els->entry_type = ELS_IOCB_TYPE;
  92         rsp_els->entry_count = 1;
  93         rsp_els->nport_handle = cpu_to_le16(~0);
  94         rsp_els->rx_xchg_address = abts->rx_xch_addr_to_abort;
  95         rsp_els->control_flags = cpu_to_le16(EPD_RX_XCHG);
  96         ql_dbg(ql_dbg_init, vha, 0x0283,
  97             "Sending ELS Response to terminate exchange %#x...\n",
  98             abts->rx_xch_addr_to_abort);
  99         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 100             "-------- ELS RSP -------\n");
 101         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 102             (uint8_t *)rsp_els, sizeof(*rsp_els));
 103         rval = qla2x00_issue_iocb(vha, rsp_els, dma, 0);
 104         if (rval) {
 105                 ql_log(ql_log_warn, vha, 0x0288,
 106                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 107         } else if (rsp_els->comp_status) {
 108                 ql_log(ql_log_warn, vha, 0x0289,
 109                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 110                     __func__, rsp_els->comp_status,
 111                     rsp_els->error_subcode_1, rsp_els->error_subcode_2);
 112         } else {
 113                 ql_dbg(ql_dbg_init, vha, 0x028a,
 114                     "%s: abort exchange done.\n", __func__);
 115         }
 116
 117         /* send ABTS response */
 118         abts_rsp = (void *)rsp_els;
 119         memset(abts_rsp, 0, sizeof(*abts_rsp));
 120         abts_rsp->entry_type = ABTS_RSP_TYPE;
 121         abts_rsp->entry_count = 1;
 122         abts_rsp->nport_handle = abts->nport_handle;
 123         abts_rsp->vp_idx = abts->vp_idx;
 124         abts_rsp->sof_type = abts->sof_type & 0xf0;
 125         abts_rsp->rx_xch_addr = abts->rx_xch_addr;
 126         abts_rsp->d_id[0] = abts->s_id[0];
 127         abts_rsp->d_id[1] = abts->s_id[1];
 128         abts_rsp->d_id[2] = abts->s_id[2];
 129         abts_rsp->r_ctl = FC_ROUTING_BLD | FC_R_CTL_BLD_BA_ACC;
 130         abts_rsp->s_id[0] = abts->d_id[0];
 131         abts_rsp->s_id[1] = abts->d_id[1];
 132         abts_rsp->s_id[2] = abts->d_id[2];
 133         abts_rsp->cs_ctl = abts->cs_ctl;
 134         /* include flipping bit23 in fctl */
 135         fctl = ~(abts->f_ctl[2] | 0x7F) << 16 |
 136             FC_F_CTL_LAST_SEQ | FC_F_CTL_END_SEQ | FC_F_CTL_SEQ_INIT;
 137         abts_rsp->f_ctl[0] = fctl >> 0 & 0xff;
 138         abts_rsp->f_ctl[1] = fctl >> 8 & 0xff;
 139         abts_rsp->f_ctl[2] = fctl >> 16 & 0xff;
 140         abts_rsp->type = FC_TYPE_BLD;
 141         abts_rsp->rx_id = abts->rx_id;
 142         abts_rsp->ox_id = abts->ox_id;
 143         abts_rsp->payload.ba_acc.aborted_rx_id = abts->rx_id;
 144         abts_rsp->payload.ba_acc.aborted_ox_id = abts->ox_id;
 145         abts_rsp->payload.ba_acc.high_seq_cnt = cpu_to_le16(~0);
 146         abts_rsp->rx_xch_addr_to_abort = abts->rx_xch_addr_to_abort;
 147         ql_dbg(ql_dbg_init, vha, 0x028b,
 148             "Sending BA ACC response to ABTS %#x...\n",
 149             abts->rx_xch_addr_to_abort);
 150         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 151             "-------- ELS RSP -------\n");
 152         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 153             (uint8_t *)abts_rsp, sizeof(*abts_rsp));
 154         rval = qla2x00_issue_iocb(vha, abts_rsp, dma, 0);
 155         if (rval) {
 156                 ql_log(ql_log_warn, vha, 0x028c,
 157                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 158         } else if (abts_rsp->comp_status) {
 159                 ql_log(ql_log_warn, vha, 0x028d,
 160                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 161                     __func__, abts_rsp->comp_status,
 162                     abts_rsp->payload.error.subcode1,
 163                     abts_rsp->payload.error.subcode2);
 164         } else {
 165                 ql_dbg(ql_dbg_init, vha, 0x028ea,
 166                     "%s: done.\n", __func__);
 167         }
 168
 169         dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, dma);
 170 }
 171
 172 /**
 173  * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
 174  * @irq: interrupt number
 175  * @dev_id: SCSI driver HA context
 176  *
 177  * Called by system whenever the host adapter generates an interrupt.
 178  *
 179  * Returns handled flag.
 180  */
 181 irqreturn_t
 182 qla2100_intr_handler(int irq, void *dev_id)
 183 {
 184         scsi_qla_host_t *vha;
 185         struct qla_hw_data *ha;
 186         struct device_reg_2xxx __iomem *reg;
 187         int             status;
 188         unsigned long   iter;
 189         uint16_t        hccr;
 190         uint16_t        mb[8];
 191         struct rsp_que *rsp;
 192         unsigned long   flags;
 193
 194         rsp = (struct rsp_que *) dev_id;
 195         if (!rsp) {
 196                 ql_log(ql_log_info, NULL, 0x505d,
 197                     "%s: NULL response queue pointer.\n", __func__);
 198                 return (IRQ_NONE);
 199         }
 200
 201         ha = rsp->hw;
 202         reg = &ha->iobase->isp;
 203         status = 0;
 204
 205         spin_lock_irqsave(&ha->hardware_lock, flags);
 206         vha = pci_get_drvdata(ha->pdev);
 207         for (iter = 50; iter--; ) {
 208                 hccr = rd_reg_word(&reg->hccr);
 209                 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
 210                         break;
 211                 if (hccr & HCCR_RISC_PAUSE) {
 212                         if (pci_channel_offline(ha->pdev))
 213                                 break;
 214
 215                         /*
 216                          * Issue a "HARD" reset in order for the RISC interrupt
 217                          * bit to be cleared.  Schedule a big hammer to get
 218                          * out of the RISC PAUSED state.
 219                          */
 220                         wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 221                         rd_reg_word(&reg->hccr);
 222
 223                         ha->isp_ops->fw_dump(vha);
 224                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 225                         break;
 226                 } else if ((rd_reg_word(&reg->istatus) & ISR_RISC_INT) == 0)
 227                         break;
 228
 229                 if (rd_reg_word(&reg->semaphore) & BIT_0) {
 230                         wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 231                         rd_reg_word(&reg->hccr);
 232
 233                         /* Get mailbox data. */
 234                         mb[0] = RD_MAILBOX_REG(ha, reg, 0);
 235                         if (mb[0] > 0x3fff && mb[0] < 0x8000) {
 236                                 qla2x00_mbx_completion(vha, mb[0]);
 237                                 status |= MBX_INTERRUPT;
 238                         } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
 239                                 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 240                                 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 241                                 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 242                                 qla2x00_async_event(vha, rsp, mb);
 243                         } else {
 244                                 /*EMPTY*/
 245                                 ql_dbg(ql_dbg_async, vha, 0x5025,
 246                                     "Unrecognized interrupt type (%d).\n",
 247                                     mb[0]);
 248                         }
 249                         /* Release mailbox registers. */
 250                         wrt_reg_word(&reg->semaphore, 0);
 251                         rd_reg_word(&reg->semaphore);
 252                 } else {
 253                         qla2x00_process_response_queue(rsp);
 254
 255                         wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 256                         rd_reg_word(&reg->hccr);
 257                 }
 258         }
 259         qla2x00_handle_mbx_completion(ha, status);
 260         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 261
 262         return (IRQ_HANDLED);
 263 }
 264
 265 bool
 266 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
 267 {
 268         /* Check for PCI disconnection */
 269         if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
 270                 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
 271                     !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
 272                     !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
 273                         /*
 274                          * Schedule this (only once) on the default system
 275                          * workqueue so that all the adapter workqueues and the
 276                          * DPC thread can be shutdown cleanly.
 277                          */
 278                         schedule_work(&vha->hw->board_disable);
 279                 }
 280                 return true;
 281         } else
 282                 return false;
 283 }
 284
 285 bool
 286 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
 287 {
 288         return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
 289 }
 290
 291 /**
 292  * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 293  * @irq: interrupt number
 294  * @dev_id: SCSI driver HA context
 295  *
 296  * Called by system whenever the host adapter generates an interrupt.
 297  *
 298  * Returns handled flag.
 299  */
 300 irqreturn_t
 301 qla2300_intr_handler(int irq, void *dev_id)
 302 {
 303         scsi_qla_host_t *vha;
 304         struct device_reg_2xxx __iomem *reg;
 305         int             status;
 306         unsigned long   iter;
 307         uint32_t        stat;
 308         uint16_t        hccr;
 309         uint16_t        mb[8];
 310         struct rsp_que *rsp;
 311         struct qla_hw_data *ha;
 312         unsigned long   flags;
 313
 314         rsp = (struct rsp_que *) dev_id;
 315         if (!rsp) {
 316                 ql_log(ql_log_info, NULL, 0x5058,
 317                     "%s: NULL response queue pointer.\n", __func__);
 318                 return (IRQ_NONE);
 319         }
 320
 321         ha = rsp->hw;
 322         reg = &ha->iobase->isp;
 323         status = 0;
 324
 325         spin_lock_irqsave(&ha->hardware_lock, flags);
 326         vha = pci_get_drvdata(ha->pdev);
 327         for (iter = 50; iter--; ) {
 328                 stat = rd_reg_dword(&reg->u.isp2300.host_status);
 329                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
 330                         break;
 331                 if (stat & HSR_RISC_PAUSED) {
 332                         if (unlikely(pci_channel_offline(ha->pdev)))
 333                                 break;
 334
 335                         hccr = rd_reg_word(&reg->hccr);
 336
 337                         if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
 338                                 ql_log(ql_log_warn, vha, 0x5026,
 339                                     "Parity error -- HCCR=%x, Dumping "
 340                                     "firmware.\n", hccr);
 341                         else
 342                                 ql_log(ql_log_warn, vha, 0x5027,
 343                                     "RISC paused -- HCCR=%x, Dumping "
 344                                     "firmware.\n", hccr);
 345
 346                         /*
 347                          * Issue a "HARD" reset in order for the RISC
 348                          * interrupt bit to be cleared.  Schedule a big
 349                          * hammer to get out of the RISC PAUSED state.
 350                          */
 351                         wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 352                         rd_reg_word(&reg->hccr);
 353
 354                         ha->isp_ops->fw_dump(vha);
 355                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 356                         break;
 357                 } else if ((stat & HSR_RISC_INT) == 0)
 358                         break;
 359
 360                 switch (stat & 0xff) {
 361                 case 0x1:
 362                 case 0x2:
 363                 case 0x10:
 364                 case 0x11:
 365                         qla2x00_mbx_completion(vha, MSW(stat));
 366                         status |= MBX_INTERRUPT;
 367
 368                         /* Release mailbox registers. */
 369                         wrt_reg_word(&reg->semaphore, 0);
 370                         break;
 371                 case 0x12:
 372                         mb[0] = MSW(stat);
 373                         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 374                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 375                         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 376                         qla2x00_async_event(vha, rsp, mb);
 377                         break;
 378                 case 0x13:
 379                         qla2x00_process_response_queue(rsp);
 380                         break;
 381                 case 0x15:
 382                         mb[0] = MBA_CMPLT_1_16BIT;
 383                         mb[1] = MSW(stat);
 384                         qla2x00_async_event(vha, rsp, mb);
 385                         break;
 386                 case 0x16:
 387                         mb[0] = MBA_SCSI_COMPLETION;
 388                         mb[1] = MSW(stat);
 389                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 390                         qla2x00_async_event(vha, rsp, mb);
 391                         break;
 392                 default:
 393                         ql_dbg(ql_dbg_async, vha, 0x5028,
 394                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
 395                         break;
 396                 }
 397                 wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 398                 rd_reg_word_relaxed(&reg->hccr);
 399         }
 400         qla2x00_handle_mbx_completion(ha, status);
 401         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 402
 403         return (IRQ_HANDLED);
 404 }
 405
 406 /**
 407  * qla2x00_mbx_completion() - Process mailbox command completions.
 408  * @vha: SCSI driver HA context
 409  * @mb0: Mailbox0 register
 410  */
 411 static void
 412 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 413 {
 414         uint16_t        cnt;
 415         uint32_t        mboxes;
 416         __le16 __iomem *wptr;
 417         struct qla_hw_data *ha = vha->hw;
 418         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 419
 420         /* Read all mbox registers? */
 421         WARN_ON_ONCE(ha->mbx_count > 32);
 422         mboxes = (1ULL << ha->mbx_count) - 1;
 423         if (!ha->mcp)
 424                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 425         else
 426                 mboxes = ha->mcp->in_mb;
 427
 428         /* Load return mailbox registers. */
 429         ha->flags.mbox_int = 1;
 430         ha->mailbox_out[0] = mb0;
 431         mboxes >>= 1;
 432         wptr = MAILBOX_REG(ha, reg, 1);
 433
 434         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 435                 if (IS_QLA2200(ha) && cnt == 8)
 436                         wptr = MAILBOX_REG(ha, reg, 8);
 437                 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 438                         ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 439                 else if (mboxes & BIT_0)
 440                         ha->mailbox_out[cnt] = rd_reg_word(wptr);
 441
 442                 wptr++;
 443                 mboxes >>= 1;
 444         }
 445 }
 446
 447 static void
 448 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 449 {
 450         static char *event[] =
 451                 { "Complete", "Request Notification", "Time Extension" };
 452         int rval;
 453         struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 454         struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 455         __le16 __iomem *wptr;
 456         uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 457
 458         /* Seed data -- mailbox1 -> mailbox7. */
 459         if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 460                 wptr = &reg24->mailbox1;
 461         else if (IS_QLA8044(vha->hw))
 462                 wptr = &reg82->mailbox_out[1];
 463         else
 464                 return;
 465
 466         for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 467                 mb[cnt] = rd_reg_word(wptr);
 468
 469         ql_dbg(ql_dbg_async, vha, 0x5021,
 470             "Inter-Driver Communication %s -- "
 471             "%04x %04x %04x %04x %04x %04x %04x.\n",
 472             event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 473             mb[4], mb[5], mb[6]);
 474         switch (aen) {
 475         /* Handle IDC Error completion case. */
 476         case MBA_IDC_COMPLETE:
 477                 if (mb[1] >> 15) {
 478                         vha->hw->flags.idc_compl_status = 1;
 479                         if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 480                                 complete(&vha->hw->dcbx_comp);
 481                 }
 482                 break;
 483
 484         case MBA_IDC_NOTIFY:
 485                 /* Acknowledgement needed? [Notify && non-zero timeout]. */
 486                 timeout = (descr >> 8) & 0xf;
 487                 ql_dbg(ql_dbg_async, vha, 0x5022,
 488                     "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 489                     vha->host_no, event[aen & 0xff], timeout);
 490
 491                 if (!timeout)
 492                         return;
 493                 rval = qla2x00_post_idc_ack_work(vha, mb);
 494                 if (rval != QLA_SUCCESS)
 495                         ql_log(ql_log_warn, vha, 0x5023,
 496                             "IDC failed to post ACK.\n");
 497                 break;
 498         case MBA_IDC_TIME_EXT:
 499                 vha->hw->idc_extend_tmo = descr;
 500                 ql_dbg(ql_dbg_async, vha, 0x5087,
 501                     "%lu Inter-Driver Communication %s -- "
 502                     "Extend timeout by=%d.\n",
 503                     vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 504                 break;
 505         }
 506 }
 507
 508 #define LS_UNKNOWN      2
 509 const char *
 510 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 511 {
 512         static const char *const link_speeds[] = {
 513                 "1", "2", "?", "4", "8", "16", "32", "10"
 514         };
 515 #define QLA_LAST_SPEED (ARRAY_SIZE(link_speeds) - 1)
 516
 517         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 518                 return link_speeds[0];
 519         else if (speed == 0x13)
 520                 return link_speeds[QLA_LAST_SPEED];
 521         else if (speed < QLA_LAST_SPEED)
 522                 return link_speeds[speed];
 523         else
 524                 return link_speeds[LS_UNKNOWN];
 525 }
 526
 527 static void
 528 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 529 {
 530         struct qla_hw_data *ha = vha->hw;
 531
 532         /*
 533          * 8200 AEN Interpretation:
 534          * mb[0] = AEN code
 535          * mb[1] = AEN Reason code
 536          * mb[2] = LSW of Peg-Halt Status-1 Register
 537          * mb[6] = MSW of Peg-Halt Status-1 Register
 538          * mb[3] = LSW of Peg-Halt Status-2 register
 539          * mb[7] = MSW of Peg-Halt Status-2 register
 540          * mb[4] = IDC Device-State Register value
 541          * mb[5] = IDC Driver-Presence Register value
 542          */
 543         ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 544             "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 545             mb[0], mb[1], mb[2], mb[6]);
 546         ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 547             "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 548             "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 549
 550         if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 551                                 IDC_HEARTBEAT_FAILURE)) {
 552                 ha->flags.nic_core_hung = 1;
 553                 ql_log(ql_log_warn, vha, 0x5060,
 554                     "83XX: F/W Error Reported: Check if reset required.\n");
 555
 556                 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 557                         uint32_t protocol_engine_id, fw_err_code, err_level;
 558
 559                         /*
 560                          * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 561                          *  - PEG-Halt Status-1 Register:
 562                          *      (LSW = mb[2], MSW = mb[6])
 563                          *      Bits 0-7   = protocol-engine ID
 564                          *      Bits 8-28  = f/w error code
 565                          *      Bits 29-31 = Error-level
 566                          *          Error-level 0x1 = Non-Fatal error
 567                          *          Error-level 0x2 = Recoverable Fatal error
 568                          *          Error-level 0x4 = UnRecoverable Fatal error
 569                          *  - PEG-Halt Status-2 Register:
 570                          *      (LSW = mb[3], MSW = mb[7])
 571                          */
 572                         protocol_engine_id = (mb[2] & 0xff);
 573                         fw_err_code = (((mb[2] & 0xff00) >> 8) |
 574                             ((mb[6] & 0x1fff) << 8));
 575                         err_level = ((mb[6] & 0xe000) >> 13);
 576                         ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 577                             "Register: protocol_engine_id=0x%x "
 578                             "fw_err_code=0x%x err_level=0x%x.\n",
 579                             protocol_engine_id, fw_err_code, err_level);
 580                         ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 581                             "Register: 0x%x%x.\n", mb[7], mb[3]);
 582                         if (err_level == ERR_LEVEL_NON_FATAL) {
 583                                 ql_log(ql_log_warn, vha, 0x5063,
 584                                     "Not a fatal error, f/w has recovered itself.\n");
 585                         } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 586                                 ql_log(ql_log_fatal, vha, 0x5064,
 587                                     "Recoverable Fatal error: Chip reset "
 588                                     "required.\n");
 589                                 qla83xx_schedule_work(vha,
 590                                     QLA83XX_NIC_CORE_RESET);
 591                         } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 592                                 ql_log(ql_log_fatal, vha, 0x5065,
 593                                     "Unrecoverable Fatal error: Set FAILED "
 594                                     "state, reboot required.\n");
 595                                 qla83xx_schedule_work(vha,
 596                                     QLA83XX_NIC_CORE_UNRECOVERABLE);
 597                         }
 598                 }
 599
 600                 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 601                         uint16_t peg_fw_state, nw_interface_link_up;
 602                         uint16_t nw_interface_signal_detect, sfp_status;
 603                         uint16_t htbt_counter, htbt_monitor_enable;
 604                         uint16_t sfp_additional_info, sfp_multirate;
 605                         uint16_t sfp_tx_fault, link_speed, dcbx_status;
 606
 607                         /*
 608                          * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 609                          *  - PEG-to-FC Status Register:
 610                          *      (LSW = mb[2], MSW = mb[6])
 611                          *      Bits 0-7   = Peg-Firmware state
 612                          *      Bit 8      = N/W Interface Link-up
 613                          *      Bit 9      = N/W Interface signal detected
 614                          *      Bits 10-11 = SFP Status
 615                          *        SFP Status 0x0 = SFP+ transceiver not expected
 616                          *        SFP Status 0x1 = SFP+ transceiver not present
 617                          *        SFP Status 0x2 = SFP+ transceiver invalid
 618                          *        SFP Status 0x3 = SFP+ transceiver present and
 619                          *        valid
 620                          *      Bits 12-14 = Heartbeat Counter
 621                          *      Bit 15     = Heartbeat Monitor Enable
 622                          *      Bits 16-17 = SFP Additional Info
 623                          *        SFP info 0x0 = Unregocnized transceiver for
 624                          *        Ethernet
 625                          *        SFP info 0x1 = SFP+ brand validation failed
 626                          *        SFP info 0x2 = SFP+ speed validation failed
 627                          *        SFP info 0x3 = SFP+ access error
 628                          *      Bit 18     = SFP Multirate
 629                          *      Bit 19     = SFP Tx Fault
 630                          *      Bits 20-22 = Link Speed
 631                          *      Bits 23-27 = Reserved
 632                          *      Bits 28-30 = DCBX Status
 633                          *        DCBX Status 0x0 = DCBX Disabled
 634                          *        DCBX Status 0x1 = DCBX Enabled
 635                          *        DCBX Status 0x2 = DCBX Exchange error
 636                          *      Bit 31     = Reserved
 637                          */
 638                         peg_fw_state = (mb[2] & 0x00ff);
 639                         nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 640                         nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 641                         sfp_status = ((mb[2] & 0x0c00) >> 10);
 642                         htbt_counter = ((mb[2] & 0x7000) >> 12);
 643                         htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 644                         sfp_additional_info = (mb[6] & 0x0003);
 645                         sfp_multirate = ((mb[6] & 0x0004) >> 2);
 646                         sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 647                         link_speed = ((mb[6] & 0x0070) >> 4);
 648                         dcbx_status = ((mb[6] & 0x7000) >> 12);
 649
 650                         ql_log(ql_log_warn, vha, 0x5066,
 651                             "Peg-to-Fc Status Register:\n"
 652                             "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 653                             "nw_interface_signal_detect=0x%x"
 654                             "\nsfp_statis=0x%x.\n ", peg_fw_state,
 655                             nw_interface_link_up, nw_interface_signal_detect,
 656                             sfp_status);
 657                         ql_log(ql_log_warn, vha, 0x5067,
 658                             "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 659                             "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
 660                             htbt_counter, htbt_monitor_enable,
 661                             sfp_additional_info, sfp_multirate);
 662                         ql_log(ql_log_warn, vha, 0x5068,
 663                             "sfp_tx_fault=0x%x, link_state=0x%x, "
 664                             "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 665                             dcbx_status);
 666
 667                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 668                 }
 669
 670                 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 671                         ql_log(ql_log_warn, vha, 0x5069,
 672                             "Heartbeat Failure encountered, chip reset "
 673                             "required.\n");
 674
 675                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 676                 }
 677         }
 678
 679         if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 680                 ql_log(ql_log_info, vha, 0x506a,
 681                     "IDC Device-State changed = 0x%x.\n", mb[4]);
 682                 if (ha->flags.nic_core_reset_owner)
 683                         return;
 684                 qla83xx_schedule_work(vha, MBA_IDC_AEN);
 685         }
 686 }
 687
 688 int
 689 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 690 {
 691         struct qla_hw_data *ha = vha->hw;
 692         scsi_qla_host_t *vp;
 693         uint32_t vp_did;
 694         unsigned long flags;
 695         int ret = 0;
 696
 697         if (!ha->num_vhosts)
 698                 return ret;
 699
 700         spin_lock_irqsave(&ha->vport_slock, flags);
 701         list_for_each_entry(vp, &ha->vp_list, list) {
 702                 vp_did = vp->d_id.b24;
 703                 if (vp_did == rscn_entry) {
 704                         ret = 1;
 705                         break;
 706                 }
 707         }
 708         spin_unlock_irqrestore(&ha->vport_slock, flags);
 709
 710         return ret;
 711 }
 712
 713 fc_port_t *
 714 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
 715 {
 716         fc_port_t *f, *tf;
 717
 718         f = tf = NULL;
 719         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
 720                 if (f->loop_id == loop_id)
 721                         return f;
 722         return NULL;
 723 }
 724
 725 fc_port_t *
 726 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
 727 {
 728         fc_port_t *f, *tf;
 729
 730         f = tf = NULL;
 731         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 732                 if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
 733                         if (incl_deleted)
 734                                 return f;
 735                         else if (f->deleted == 0)
 736                                 return f;
 737                 }
 738         }
 739         return NULL;
 740 }
 741
 742 fc_port_t *
 743 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
 744         u8 incl_deleted)
 745 {
 746         fc_port_t *f, *tf;
 747
 748         f = tf = NULL;
 749         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 750                 if (f->d_id.b24 == id->b24) {
 751                         if (incl_deleted)
 752                                 return f;
 753                         else if (f->deleted == 0)
 754                                 return f;
 755                 }
 756         }
 757         return NULL;
 758 }
 759
 760 /* Shall be called only on supported adapters. */
 761 static void
 762 qla27xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 763 {
 764         struct qla_hw_data *ha = vha->hw;
 765         bool reset_isp_needed = false;
 766
 767         ql_log(ql_log_warn, vha, 0x02f0,
 768                "MPI Heartbeat stop. MPI reset is%s needed. "
 769                "MB0[%xh] MB1[%xh] MB2[%xh] MB3[%xh]\n",
 770                mb[1] & BIT_8 ? "" : " not",
 771                mb[0], mb[1], mb[2], mb[3]);
 772
 773         if ((mb[1] & BIT_8) == 0)
 774                 return;
 775
 776         ql_log(ql_log_warn, vha, 0x02f1,
 777                "MPI Heartbeat stop. FW dump needed\n");
 778
 779         if (ql2xfulldump_on_mpifail) {
 780                 ha->isp_ops->fw_dump(vha);
 781                 reset_isp_needed = true;
 782         }
 783
 784         ha->isp_ops->mpi_fw_dump(vha, 1);
 785
 786         if (reset_isp_needed) {
 787                 vha->hw->flags.fw_init_done = 0;
 788                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 789                 qla2xxx_wake_dpc(vha);
 790         }
 791 }
 792
 793 static struct purex_item *
 794 qla24xx_alloc_purex_item(scsi_qla_host_t *vha, uint16_t size)
 795 {
 796         struct purex_item *item = NULL;
 797         uint8_t item_hdr_size = sizeof(*item);
 798
 799         if (size > QLA_DEFAULT_PAYLOAD_SIZE) {
 800                 item = kzalloc(item_hdr_size +
 801                     (size - QLA_DEFAULT_PAYLOAD_SIZE), GFP_ATOMIC);
 802         } else {
 803                 if (atomic_inc_return(&vha->default_item.in_use) == 1) {
 804                         item = &vha->default_item;
 805                         goto initialize_purex_header;
 806                 } else {
 807                         item = kzalloc(item_hdr_size, GFP_ATOMIC);
 808                 }
 809         }
 810         if (!item) {
 811                 ql_log(ql_log_warn, vha, 0x5092,
 812                        ">> Failed allocate purex list item.\n");
 813
 814                 return NULL;
 815         }
 816
 817 initialize_purex_header:
 818         item->vha = vha;
 819         item->size = size;
 820         return item;
 821 }
 822
 823 static void
 824 qla24xx_queue_purex_item(scsi_qla_host_t *vha, struct purex_item *pkt,
 825                          void (*process_item)(struct scsi_qla_host *vha,
 826                                               struct purex_item *pkt))
 827 {
 828         struct purex_list *list = &vha->purex_list;
 829         ulong flags;
 830
 831         pkt->process_item = process_item;
 832
 833         spin_lock_irqsave(&list->lock, flags);
 834         list_add_tail(&pkt->list, &list->head);
 835         spin_unlock_irqrestore(&list->lock, flags);
 836
 837         set_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
 838 }
 839
 840 /**
 841  * qla24xx_copy_std_pkt() - Copy over purex ELS which is
 842  * contained in a single IOCB.
 843  * purex packet.
 844  * @vha: SCSI driver HA context
 845  * @pkt: ELS packet
 846  */
 847 static struct purex_item
 848 *qla24xx_copy_std_pkt(struct scsi_qla_host *vha, void *pkt)
 849 {
 850         struct purex_item *item;
 851
 852         item = qla24xx_alloc_purex_item(vha,
 853                                         QLA_DEFAULT_PAYLOAD_SIZE);
 854         if (!item)
 855                 return item;
 856
 857         memcpy(&item->iocb, pkt, sizeof(item->iocb));
 858         return item;
 859 }
 860
 861 /**
 862  * qla27xx_copy_fpin_pkt() - Copy over fpin packets that can
 863  * span over multiple IOCBs.
 864  * @vha: SCSI driver HA context
 865  * @pkt: ELS packet
 866  * @rsp: Response queue
 867  */
 868 static struct purex_item *
 869 qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha, void **pkt,
 870                       struct rsp_que **rsp)
 871 {
 872         struct purex_entry_24xx *purex = *pkt;
 873         struct rsp_que *rsp_q = *rsp;
 874         sts_cont_entry_t *new_pkt;
 875         uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
 876         uint16_t buffer_copy_offset = 0;
 877         uint16_t entry_count, entry_count_remaining;
 878         struct purex_item *item;
 879         void *fpin_pkt = NULL;
 880
 881         total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
 882             - PURX_ELS_HEADER_SIZE;
 883         pending_bytes = total_bytes;
 884         entry_count = entry_count_remaining = purex->entry_count;
 885         no_bytes = (pending_bytes > sizeof(purex->els_frame_payload))  ?
 886                    sizeof(purex->els_frame_payload) : pending_bytes;
 887         ql_log(ql_log_info, vha, 0x509a,
 888                "FPIN ELS, frame_size 0x%x, entry count %d\n",
 889                total_bytes, entry_count);
 890
 891         item = qla24xx_alloc_purex_item(vha, total_bytes);
 892         if (!item)
 893                 return item;
 894
 895         fpin_pkt = &item->iocb;
 896
 897         memcpy(fpin_pkt, &purex->els_frame_payload[0], no_bytes);
 898         buffer_copy_offset += no_bytes;
 899         pending_bytes -= no_bytes;
 900         --entry_count_remaining;
 901
 902         ((response_t *)purex)->signature = RESPONSE_PROCESSED;
 903         wmb();
 904
 905         do {
 906                 while ((total_bytes > 0) && (entry_count_remaining > 0)) {
 907                         if (rsp_q->ring_ptr->signature == RESPONSE_PROCESSED) {
 908                                 ql_dbg(ql_dbg_async, vha, 0x5084,
 909                                        "Ran out of IOCBs, partial data 0x%x\n",
 910                                        buffer_copy_offset);
 911                                 cpu_relax();
 912                                 continue;
 913                         }
 914
 915                         new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
 916                         *pkt = new_pkt;
 917
 918                         if (new_pkt->entry_type != STATUS_CONT_TYPE) {
 919                                 ql_log(ql_log_warn, vha, 0x507a,
 920                                        "Unexpected IOCB type, partial data 0x%x\n",
 921                                        buffer_copy_offset);
 922                                 break;
 923                         }
 924
 925                         rsp_q->ring_index++;
 926                         if (rsp_q->ring_index == rsp_q->length) {
 927                                 rsp_q->ring_index = 0;
 928                                 rsp_q->ring_ptr = rsp_q->ring;
 929                         } else {
 930                                 rsp_q->ring_ptr++;
 931                         }
 932                         no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
 933                             sizeof(new_pkt->data) : pending_bytes;
 934                         if ((buffer_copy_offset + no_bytes) <= total_bytes) {
 935                                 memcpy(((uint8_t *)fpin_pkt +
 936                                     buffer_copy_offset), new_pkt->data,
 937                                     no_bytes);
 938                                 buffer_copy_offset += no_bytes;
 939                                 pending_bytes -= no_bytes;
 940                                 --entry_count_remaining;
 941                         } else {
 942                                 ql_log(ql_log_warn, vha, 0x5044,
 943                                        "Attempt to copy more that we got, optimizing..%x\n",
 944                                        buffer_copy_offset);
 945                                 memcpy(((uint8_t *)fpin_pkt +
 946                                     buffer_copy_offset), new_pkt->data,
 947                                     total_bytes - buffer_copy_offset);
 948                         }
 949
 950                         ((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
 951                         wmb();
 952                 }
 953
 954                 if (pending_bytes != 0 || entry_count_remaining != 0) {
 955                         ql_log(ql_log_fatal, vha, 0x508b,
 956                                "Dropping partial FPIN, underrun bytes = 0x%x, entry cnts 0x%x\n",
 957                                total_bytes, entry_count_remaining);
 958                         qla24xx_free_purex_item(item);
 959                         return NULL;
 960                 }
 961         } while (entry_count_remaining > 0);
 962         host_to_fcp_swap((uint8_t *)&item->iocb, total_bytes);
 963         return item;
 964 }
 965
 966 /**
 967  * qla2x00_async_event() - Process aynchronous events.
 968  * @vha: SCSI driver HA context
 969  * @rsp: response queue
 970  * @mb: Mailbox registers (0 - 3)
 971  */
 972 void
 973 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
 974 {
 975         uint16_t        handle_cnt;
 976         uint16_t        cnt, mbx;
 977         uint32_t        handles[5];
 978         struct qla_hw_data *ha = vha->hw;
 979         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 980         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
 981         struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 982         uint32_t        rscn_entry, host_pid;
 983         unsigned long   flags;
 984         fc_port_t       *fcport = NULL;
 985
 986         if (!vha->hw->flags.fw_started)
 987                 return;
 988
 989         /* Setup to process RIO completion. */
 990         handle_cnt = 0;
 991         if (IS_CNA_CAPABLE(ha))
 992                 goto skip_rio;
 993         switch (mb[0]) {
 994         case MBA_SCSI_COMPLETION:
 995                 handles[0] = make_handle(mb[2], mb[1]);
 996                 handle_cnt = 1;
 997                 break;
 998         case MBA_CMPLT_1_16BIT:
 999                 handles[0] = mb[1];
1000                 handle_cnt = 1;
1001                 mb[0] = MBA_SCSI_COMPLETION;
1002                 break;
1003         case MBA_CMPLT_2_16BIT:
1004                 handles[0] = mb[1];
1005                 handles[1] = mb[2];
1006                 handle_cnt = 2;
1007                 mb[0] = MBA_SCSI_COMPLETION;
1008                 break;
1009         case MBA_CMPLT_3_16BIT:
1010                 handles[0] = mb[1];
1011                 handles[1] = mb[2];
1012                 handles[2] = mb[3];
1013                 handle_cnt = 3;
1014                 mb[0] = MBA_SCSI_COMPLETION;
1015                 break;
1016         case MBA_CMPLT_4_16BIT:
1017                 handles[0] = mb[1];
1018                 handles[1] = mb[2];
1019                 handles[2] = mb[3];
1020                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1021                 handle_cnt = 4;
1022                 mb[0] = MBA_SCSI_COMPLETION;
1023                 break;
1024         case MBA_CMPLT_5_16BIT:
1025                 handles[0] = mb[1];
1026                 handles[1] = mb[2];
1027                 handles[2] = mb[3];
1028                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1029                 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
1030                 handle_cnt = 5;
1031                 mb[0] = MBA_SCSI_COMPLETION;
1032                 break;
1033         case MBA_CMPLT_2_32BIT:
1034                 handles[0] = make_handle(mb[2], mb[1]);
1035                 handles[1] = make_handle(RD_MAILBOX_REG(ha, reg, 7),
1036                                          RD_MAILBOX_REG(ha, reg, 6));
1037                 handle_cnt = 2;
1038                 mb[0] = MBA_SCSI_COMPLETION;
1039                 break;
1040         default:
1041                 break;
1042         }
1043 skip_rio:
1044         switch (mb[0]) {
1045         case MBA_SCSI_COMPLETION:       /* Fast Post */
1046                 if (!vha->flags.online)
1047                         break;
1048
1049                 for (cnt = 0; cnt < handle_cnt; cnt++)
1050                         qla2x00_process_completed_request(vha, rsp->req,
1051                                 handles[cnt]);
1052                 break;
1053
1054         case MBA_RESET:                 /* Reset */
1055                 ql_dbg(ql_dbg_async, vha, 0x5002,
1056                     "Asynchronous RESET.\n");
1057
1058                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1059                 break;
1060
1061         case MBA_SYSTEM_ERR:            /* System Error */
1062                 mbx = 0;
1063
1064                 vha->hw_err_cnt++;
1065
1066                 if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
1067                     IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1068                         u16 m[4];
1069
1070                         m[0] = rd_reg_word(&reg24->mailbox4);
1071                         m[1] = rd_reg_word(&reg24->mailbox5);
1072                         m[2] = rd_reg_word(&reg24->mailbox6);
1073                         mbx = m[3] = rd_reg_word(&reg24->mailbox7);
1074
1075                         ql_log(ql_log_warn, vha, 0x5003,
1076                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh mbx4=%xh mbx5=%xh mbx6=%xh mbx7=%xh.\n",
1077                             mb[1], mb[2], mb[3], m[0], m[1], m[2], m[3]);
1078                 } else
1079                         ql_log(ql_log_warn, vha, 0x5003,
1080                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n ",
1081                             mb[1], mb[2], mb[3]);
1082
1083                 if ((IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
1084                     rd_reg_word(&reg24->mailbox7) & BIT_8)
1085                         ha->isp_ops->mpi_fw_dump(vha, 1);
1086                 ha->isp_ops->fw_dump(vha);
1087                 ha->flags.fw_init_done = 0;
1088                 QLA_FW_STOPPED(ha);
1089
1090                 if (IS_FWI2_CAPABLE(ha)) {
1091                         if (mb[1] == 0 && mb[2] == 0) {
1092                                 ql_log(ql_log_fatal, vha, 0x5004,
1093                                     "Unrecoverable Hardware Error: adapter "
1094                                     "marked OFFLINE!\n");
1095                                 vha->flags.online = 0;
1096                                 vha->device_flags |= DFLG_DEV_FAILED;
1097                         } else {
1098                                 /* Check to see if MPI timeout occurred */
1099                                 if ((mbx & MBX_3) && (ha->port_no == 0))
1100                                         set_bit(MPI_RESET_NEEDED,
1101                                             &vha->dpc_flags);
1102
1103                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1104                         }
1105                 } else if (mb[1] == 0) {
1106                         ql_log(ql_log_fatal, vha, 0x5005,
1107                             "Unrecoverable Hardware Error: adapter marked "
1108                             "OFFLINE!\n");
1109                         vha->flags.online = 0;
1110                         vha->device_flags |= DFLG_DEV_FAILED;
1111                 } else
1112                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1113                 break;
1114
1115         case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
1116                 ql_log(ql_log_warn, vha, 0x5006,
1117                     "ISP Request Transfer Error (%x).\n",  mb[1]);
1118
1119                 vha->hw_err_cnt++;
1120
1121                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1122                 break;
1123
1124         case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
1125                 ql_log(ql_log_warn, vha, 0x5007,
1126                     "ISP Response Transfer Error (%x).\n", mb[1]);
1127
1128                 vha->hw_err_cnt++;
1129
1130                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1131                 break;
1132
1133         case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
1134                 ql_dbg(ql_dbg_async, vha, 0x5008,
1135                     "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
1136                 break;
1137
1138         case MBA_LOOP_INIT_ERR:
1139                 ql_log(ql_log_warn, vha, 0x5090,
1140                     "LOOP INIT ERROR (%x).\n", mb[1]);
1141                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1142                 break;
1143
1144         case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
1145                 ha->flags.lip_ae = 1;
1146
1147                 ql_dbg(ql_dbg_async, vha, 0x5009,
1148                     "LIP occurred (%x).\n", mb[1]);
1149
1150                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1151                         atomic_set(&vha->loop_state, LOOP_DOWN);
1152                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1153                         qla2x00_mark_all_devices_lost(vha);
1154                 }
1155
1156                 if (vha->vp_idx) {
1157                         atomic_set(&vha->vp_state, VP_FAILED);
1158                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1159                 }
1160
1161                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1162                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1163
1164                 vha->flags.management_server_logged_in = 0;
1165                 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
1166                 break;
1167
1168         case MBA_LOOP_UP:               /* Loop Up Event */
1169                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
1170                         ha->link_data_rate = PORT_SPEED_1GB;
1171                 else
1172                         ha->link_data_rate = mb[1];
1173
1174                 ql_log(ql_log_info, vha, 0x500a,
1175                     "LOOP UP detected (%s Gbps).\n",
1176                     qla2x00_get_link_speed_str(ha, ha->link_data_rate));
1177
1178                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1179                         if (mb[2] & BIT_0)
1180                                 ql_log(ql_log_info, vha, 0x11a0,
1181                                     "FEC=enabled (link up).\n");
1182                 }
1183
1184                 vha->flags.management_server_logged_in = 0;
1185                 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
1186
1187                 if (vha->link_down_time < vha->hw->port_down_retry_count) {
1188                         vha->short_link_down_cnt++;
1189                         vha->link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
1190                 }
1191
1192                 break;
1193
1194         case MBA_LOOP_DOWN:             /* Loop Down Event */
1195                 SAVE_TOPO(ha);
1196                 ha->flags.lip_ae = 0;
1197                 ha->current_topology = 0;
1198                 vha->link_down_time = 0;
1199
1200                 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
1201                         ? rd_reg_word(&reg24->mailbox4) : 0;
1202                 mbx = (IS_P3P_TYPE(ha)) ? rd_reg_word(&reg82->mailbox_out[4])
1203                         : mbx;
1204                 ql_log(ql_log_info, vha, 0x500b,
1205                     "LOOP DOWN detected (%x %x %x %x).\n",
1206                     mb[1], mb[2], mb[3], mbx);
1207
1208                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1209                         atomic_set(&vha->loop_state, LOOP_DOWN);
1210                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1211                         /*
1212                          * In case of loop down, restore WWPN from
1213                          * NVRAM in case of FA-WWPN capable ISP
1214                          * Restore for Physical Port only
1215                          */
1216                         if (!vha->vp_idx) {
1217                                 if (ha->flags.fawwpn_enabled &&
1218                                     (ha->current_topology == ISP_CFG_F)) {
1219                                         void *wwpn = ha->init_cb->port_name;
1220
1221                                         memcpy(vha->port_name, wwpn, WWN_SIZE);
1222                                         fc_host_port_name(vha->host) =
1223                                             wwn_to_u64(vha->port_name);
1224                                         ql_dbg(ql_dbg_init + ql_dbg_verbose,
1225                                             vha, 0x00d8, "LOOP DOWN detected,"
1226                                             "restore WWPN %016llx\n",
1227                                             wwn_to_u64(vha->port_name));
1228                                 }
1229
1230                                 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
1231                         }
1232
1233                         vha->device_flags |= DFLG_NO_CABLE;
1234                         qla2x00_mark_all_devices_lost(vha);
1235                 }
1236
1237                 if (vha->vp_idx) {
1238                         atomic_set(&vha->vp_state, VP_FAILED);
1239                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1240                 }
1241
1242                 vha->flags.management_server_logged_in = 0;
1243                 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1244                 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
1245                 break;
1246
1247         case MBA_LIP_RESET:             /* LIP reset occurred */
1248                 ql_dbg(ql_dbg_async, vha, 0x500c,
1249                     "LIP reset occurred (%x).\n", mb[1]);
1250
1251                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1252                         atomic_set(&vha->loop_state, LOOP_DOWN);
1253                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1254                         qla2x00_mark_all_devices_lost(vha);
1255                 }
1256
1257                 if (vha->vp_idx) {
1258                         atomic_set(&vha->vp_state, VP_FAILED);
1259                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1260                 }
1261
1262                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1263
1264                 ha->operating_mode = LOOP;
1265                 vha->flags.management_server_logged_in = 0;
1266                 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
1267                 break;
1268
1269         /* case MBA_DCBX_COMPLETE: */
1270         case MBA_POINT_TO_POINT:        /* Point-to-Point */
1271                 ha->flags.lip_ae = 0;
1272
1273                 if (IS_QLA2100(ha))
1274                         break;
1275
1276                 if (IS_CNA_CAPABLE(ha)) {
1277                         ql_dbg(ql_dbg_async, vha, 0x500d,
1278                             "DCBX Completed -- %04x %04x %04x.\n",
1279                             mb[1], mb[2], mb[3]);
1280                         if (ha->notify_dcbx_comp && !vha->vp_idx)
1281                                 complete(&ha->dcbx_comp);
1282
1283                 } else
1284                         ql_dbg(ql_dbg_async, vha, 0x500e,
1285                             "Asynchronous P2P MODE received.\n");
1286
1287                 /*
1288                  * Until there's a transition from loop down to loop up, treat
1289                  * this as loop down only.
1290                  */
1291                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1292                         atomic_set(&vha->loop_state, LOOP_DOWN);
1293                         if (!atomic_read(&vha->loop_down_timer))
1294                                 atomic_set(&vha->loop_down_timer,
1295                                     LOOP_DOWN_TIME);
1296                         if (!N2N_TOPO(ha))
1297                                 qla2x00_mark_all_devices_lost(vha);
1298                 }
1299
1300                 if (vha->vp_idx) {
1301                         atomic_set(&vha->vp_state, VP_FAILED);
1302                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1303                 }
1304
1305                 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
1306                         set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1307
1308                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1309                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1310
1311                 vha->flags.management_server_logged_in = 0;
1312                 break;
1313
1314         case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
1315                 if (IS_QLA2100(ha))
1316                         break;
1317
1318                 ql_dbg(ql_dbg_async, vha, 0x500f,
1319                     "Configuration change detected: value=%x.\n", mb[1]);
1320
1321                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1322                         atomic_set(&vha->loop_state, LOOP_DOWN);
1323                         if (!atomic_read(&vha->loop_down_timer))
1324                                 atomic_set(&vha->loop_down_timer,
1325                                     LOOP_DOWN_TIME);
1326                         qla2x00_mark_all_devices_lost(vha);
1327                 }
1328
1329                 if (vha->vp_idx) {
1330                         atomic_set(&vha->vp_state, VP_FAILED);
1331                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1332                 }
1333
1334                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1335                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1336                 break;
1337
1338         case MBA_PORT_UPDATE:           /* Port database update */
1339                 /*
1340                  * Handle only global and vn-port update events
1341                  *
1342                  * Relevant inputs:
1343                  * mb[1] = N_Port handle of changed port
1344                  * OR 0xffff for global event
1345                  * mb[2] = New login state
1346                  * 7 = Port logged out
1347                  * mb[3] = LSB is vp_idx, 0xff = all vps
1348                  *
1349                  * Skip processing if:
1350                  *       Event is global, vp_idx is NOT all vps,
1351                  *           vp_idx does not match
1352                  *       Event is not global, vp_idx does not match
1353                  */
1354                 if (IS_QLA2XXX_MIDTYPE(ha) &&
1355                     ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
1356                         (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
1357                         break;
1358
1359                 if (mb[2] == 0x7) {
1360                         ql_dbg(ql_dbg_async, vha, 0x5010,
1361                             "Port %s %04x %04x %04x.\n",
1362                             mb[1] == 0xffff ? "unavailable" : "logout",
1363                             mb[1], mb[2], mb[3]);
1364
1365                         if (mb[1] == 0xffff)
1366                                 goto global_port_update;
1367
1368                         if (mb[1] == NPH_SNS_LID(ha)) {
1369                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1370                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1371                                 break;
1372                         }
1373
1374                         /* use handle_cnt for loop id/nport handle */
1375                         if (IS_FWI2_CAPABLE(ha))
1376                                 handle_cnt = NPH_SNS;
1377                         else
1378                                 handle_cnt = SIMPLE_NAME_SERVER;
1379                         if (mb[1] == handle_cnt) {
1380                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1381                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1382                                 break;
1383                         }
1384
1385                         /* Port logout */
1386                         fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1387                         if (!fcport)
1388                                 break;
1389                         if (atomic_read(&fcport->state) != FCS_ONLINE)
1390                                 break;
1391                         ql_dbg(ql_dbg_async, vha, 0x508a,
1392                             "Marking port lost loopid=%04x portid=%06x.\n",
1393                             fcport->loop_id, fcport->d_id.b24);
1394                         if (qla_ini_mode_enabled(vha)) {
1395                                 fcport->logout_on_delete = 0;
1396                                 qlt_schedule_sess_for_deletion(fcport);
1397                         }
1398                         break;
1399
1400 global_port_update:
1401                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1402                                 atomic_set(&vha->loop_state, LOOP_DOWN);
1403                                 atomic_set(&vha->loop_down_timer,
1404                                     LOOP_DOWN_TIME);
1405                                 vha->device_flags |= DFLG_NO_CABLE;
1406                                 qla2x00_mark_all_devices_lost(vha);
1407                         }
1408
1409                         if (vha->vp_idx) {
1410                                 atomic_set(&vha->vp_state, VP_FAILED);
1411                                 fc_vport_set_state(vha->fc_vport,
1412                                     FC_VPORT_FAILED);
1413                                 qla2x00_mark_all_devices_lost(vha);
1414                         }
1415
1416                         vha->flags.management_server_logged_in = 0;
1417                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1418                         break;
1419                 }
1420
1421                 /*
1422                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1423                  * event etc. earlier indicating loop is down) then process
1424                  * it.  Otherwise ignore it and Wait for RSCN to come in.
1425                  */
1426                 atomic_set(&vha->loop_down_timer, 0);
1427                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1428                         !ha->flags.n2n_ae  &&
1429                     atomic_read(&vha->loop_state) != LOOP_DEAD) {
1430                         ql_dbg(ql_dbg_async, vha, 0x5011,
1431                             "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1432                             mb[1], mb[2], mb[3]);
1433                         break;
1434                 }
1435
1436                 ql_dbg(ql_dbg_async, vha, 0x5012,
1437                     "Port database changed %04x %04x %04x.\n",
1438                     mb[1], mb[2], mb[3]);
1439
1440                 /*
1441                  * Mark all devices as missing so we will login again.
1442                  */
1443                 atomic_set(&vha->loop_state, LOOP_UP);
1444                 vha->scan.scan_retry = 0;
1445
1446                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1447                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1448                 set_bit(VP_CONFIG_OK, &vha->vp_flags);
1449                 break;
1450
1451         case MBA_RSCN_UPDATE:           /* State Change Registration */
1452                 /* Check if the Vport has issued a SCR */
1453                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1454                         break;
1455                 /* Only handle SCNs for our Vport index. */
1456                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1457                         break;
1458
1459                 ql_log(ql_log_warn, vha, 0x5013,
1460                        "RSCN database changed -- %04x %04x %04x.\n",
1461                        mb[1], mb[2], mb[3]);
1462
1463                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1464                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1465                                 | vha->d_id.b.al_pa;
1466                 if (rscn_entry == host_pid) {
1467                         ql_dbg(ql_dbg_async, vha, 0x5014,
1468                             "Ignoring RSCN update to local host "
1469                             "port ID (%06x).\n", host_pid);
1470                         break;
1471                 }
1472
1473                 /* Ignore reserved bits from RSCN-payload. */
1474                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1475
1476                 /* Skip RSCNs for virtual ports on the same physical port */
1477                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1478                         break;
1479
1480                 atomic_set(&vha->loop_down_timer, 0);
1481                 vha->flags.management_server_logged_in = 0;
1482                 {
1483                         struct event_arg ea;
1484
1485                         memset(&ea, 0, sizeof(ea));
1486                         ea.id.b24 = rscn_entry;
1487                         ea.id.b.rsvd_1 = rscn_entry >> 24;
1488                         qla2x00_handle_rscn(vha, &ea);
1489                         qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1490                 }
1491                 break;
1492         case MBA_CONGN_NOTI_RECV:
1493                 if (!ha->flags.scm_enabled ||
1494                     mb[1] != QLA_CON_PRIMITIVE_RECEIVED)
1495                         break;
1496
1497                 if (mb[2] == QLA_CONGESTION_ARB_WARNING) {
1498                         ql_dbg(ql_dbg_async, vha, 0x509b,
1499                                "Congestion Warning %04x %04x.\n", mb[1], mb[2]);
1500                 } else if (mb[2] == QLA_CONGESTION_ARB_ALARM) {
1501                         ql_log(ql_log_warn, vha, 0x509b,
1502                                "Congestion Alarm %04x %04x.\n", mb[1], mb[2]);
1503                 }
1504                 break;
1505         /* case MBA_RIO_RESPONSE: */
1506         case MBA_ZIO_RESPONSE:
1507                 ql_dbg(ql_dbg_async, vha, 0x5015,
1508                     "[R|Z]IO update completion.\n");
1509
1510                 if (IS_FWI2_CAPABLE(ha))
1511                         qla24xx_process_response_queue(vha, rsp);
1512                 else
1513                         qla2x00_process_response_queue(rsp);
1514                 break;
1515
1516         case MBA_DISCARD_RND_FRAME:
1517                 ql_dbg(ql_dbg_async, vha, 0x5016,
1518                     "Discard RND Frame -- %04x %04x %04x.\n",
1519                     mb[1], mb[2], mb[3]);
1520                 vha->interface_err_cnt++;
1521                 break;
1522
1523         case MBA_TRACE_NOTIFICATION:
1524                 ql_dbg(ql_dbg_async, vha, 0x5017,
1525                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1526                 break;
1527
1528         case MBA_ISP84XX_ALERT:
1529                 ql_dbg(ql_dbg_async, vha, 0x5018,
1530                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1531                     mb[1], mb[2], mb[3]);
1532
1533                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1534                 switch (mb[1]) {
1535                 case A84_PANIC_RECOVERY:
1536                         ql_log(ql_log_info, vha, 0x5019,
1537                             "Alert 84XX: panic recovery %04x %04x.\n",
1538                             mb[2], mb[3]);
1539                         break;
1540                 case A84_OP_LOGIN_COMPLETE:
1541                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1542                         ql_log(ql_log_info, vha, 0x501a,
1543                             "Alert 84XX: firmware version %x.\n",
1544                             ha->cs84xx->op_fw_version);
1545                         break;
1546                 case A84_DIAG_LOGIN_COMPLETE:
1547                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1548                         ql_log(ql_log_info, vha, 0x501b,
1549                             "Alert 84XX: diagnostic firmware version %x.\n",
1550                             ha->cs84xx->diag_fw_version);
1551                         break;
1552                 case A84_GOLD_LOGIN_COMPLETE:
1553                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1554                         ha->cs84xx->fw_update = 1;
1555                         ql_log(ql_log_info, vha, 0x501c,
1556                             "Alert 84XX: gold firmware version %x.\n",
1557                             ha->cs84xx->gold_fw_version);
1558                         break;
1559                 default:
1560                         ql_log(ql_log_warn, vha, 0x501d,
1561                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1562                             mb[1], mb[2], mb[3]);
1563                 }
1564                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1565                 break;
1566         case MBA_DCBX_START:
1567                 ql_dbg(ql_dbg_async, vha, 0x501e,
1568                     "DCBX Started -- %04x %04x %04x.\n",
1569                     mb[1], mb[2], mb[3]);
1570                 break;
1571         case MBA_DCBX_PARAM_UPDATE:
1572                 ql_dbg(ql_dbg_async, vha, 0x501f,
1573                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1574                     mb[1], mb[2], mb[3]);
1575                 break;
1576         case MBA_FCF_CONF_ERR:
1577                 ql_dbg(ql_dbg_async, vha, 0x5020,
1578                     "FCF Configuration Error -- %04x %04x %04x.\n",
1579                     mb[1], mb[2], mb[3]);
1580                 break;
1581         case MBA_IDC_NOTIFY:
1582                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1583                         mb[4] = rd_reg_word(&reg24->mailbox4);
1584                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1585                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1586                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1587                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1588                                 /*
1589                                  * Extend loop down timer since port is active.
1590                                  */
1591                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1592                                         atomic_set(&vha->loop_down_timer,
1593                                             LOOP_DOWN_TIME);
1594                                 qla2xxx_wake_dpc(vha);
1595                         }
1596                 }
1597                 fallthrough;
1598         case MBA_IDC_COMPLETE:
1599                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1600                         complete(&ha->lb_portup_comp);
1601                 fallthrough;
1602         case MBA_IDC_TIME_EXT:
1603                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1604                     IS_QLA8044(ha))
1605                         qla81xx_idc_event(vha, mb[0], mb[1]);
1606                 break;
1607
1608         case MBA_IDC_AEN:
1609                 if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1610                         vha->hw_err_cnt++;
1611                         qla27xx_handle_8200_aen(vha, mb);
1612                 } else if (IS_QLA83XX(ha)) {
1613                         mb[4] = rd_reg_word(&reg24->mailbox4);
1614                         mb[5] = rd_reg_word(&reg24->mailbox5);
1615                         mb[6] = rd_reg_word(&reg24->mailbox6);
1616                         mb[7] = rd_reg_word(&reg24->mailbox7);
1617                         qla83xx_handle_8200_aen(vha, mb);
1618                 } else {
1619                         ql_dbg(ql_dbg_async, vha, 0x5052,
1620                             "skip Heartbeat processing mb0-3=[0x%04x] [0x%04x] [0x%04x] [0x%04x]\n",
1621                             mb[0], mb[1], mb[2], mb[3]);
1622                 }
1623                 break;
1624
1625         case MBA_DPORT_DIAGNOSTICS:
1626                 ql_dbg(ql_dbg_async, vha, 0x5052,
1627                     "D-Port Diagnostics: %04x %04x %04x %04x\n",
1628                     mb[0], mb[1], mb[2], mb[3]);
1629                 memcpy(vha->dport_data, mb, sizeof(vha->dport_data));
1630                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1631                         static char *results[] = {
1632                             "start", "done(pass)", "done(error)", "undefined" };
1633                         static char *types[] = {
1634                             "none", "dynamic", "static", "other" };
1635                         uint result = mb[1] >> 0 & 0x3;
1636                         uint type = mb[1] >> 6 & 0x3;
1637                         uint sw = mb[1] >> 15 & 0x1;
1638                         ql_dbg(ql_dbg_async, vha, 0x5052,
1639                             "D-Port Diagnostics: result=%s type=%s [sw=%u]\n",
1640                             results[result], types[type], sw);
1641                         if (result == 2) {
1642                                 static char *reasons[] = {
1643                                     "reserved", "unexpected reject",
1644                                     "unexpected phase", "retry exceeded",
1645                                     "timed out", "not supported",
1646                                     "user stopped" };
1647                                 uint reason = mb[2] >> 0 & 0xf;
1648                                 uint phase = mb[2] >> 12 & 0xf;
1649                                 ql_dbg(ql_dbg_async, vha, 0x5052,
1650                                     "D-Port Diagnostics: reason=%s phase=%u \n",
1651                                     reason < 7 ? reasons[reason] : "other",
1652                                     phase >> 1);
1653                         }
1654                 }
1655                 break;
1656
1657         case MBA_TEMPERATURE_ALERT:
1658                 ql_dbg(ql_dbg_async, vha, 0x505e,
1659                     "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1660                 if (mb[1] == 0x12)
1661                         schedule_work(&ha->board_disable);
1662                 break;
1663
1664         case MBA_TRANS_INSERT:
1665                 ql_dbg(ql_dbg_async, vha, 0x5091,
1666                     "Transceiver Insertion: %04x\n", mb[1]);
1667                 set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
1668                 break;
1669
1670         case MBA_TRANS_REMOVE:
1671                 ql_dbg(ql_dbg_async, vha, 0x5091, "Transceiver Removal\n");
1672                 break;
1673
1674         default:
1675                 ql_dbg(ql_dbg_async, vha, 0x5057,
1676                     "Unknown AEN:%04x %04x %04x %04x\n",
1677                     mb[0], mb[1], mb[2], mb[3]);
1678         }
1679
1680         qlt_async_event(mb[0], vha, mb);
1681
1682         if (!vha->vp_idx && ha->num_vhosts)
1683                 qla2x00_alert_all_vps(rsp, mb);
1684 }
1685
1686 /**
1687  * qla2x00_process_completed_request() - Process a Fast Post response.
1688  * @vha: SCSI driver HA context
1689  * @req: request queue
1690  * @index: SRB index
1691  */
1692 void
1693 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1694                                   struct req_que *req, uint32_t index)
1695 {
1696         srb_t *sp;
1697         struct qla_hw_data *ha = vha->hw;
1698
1699         /* Validate handle. */
1700         if (index >= req->num_outstanding_cmds) {
1701                 ql_log(ql_log_warn, vha, 0x3014,
1702                     "Invalid SCSI command index (%x).\n", index);
1703
1704                 if (IS_P3P_TYPE(ha))
1705                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1706                 else
1707                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1708                 return;
1709         }
1710
1711         sp = req->outstanding_cmds[index];
1712         if (sp) {
1713                 /* Free outstanding command slot. */
1714                 req->outstanding_cmds[index] = NULL;
1715
1716                 /* Save ISP completion status */
1717                 sp->done(sp, DID_OK << 16);
1718         } else {
1719                 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1720
1721                 if (IS_P3P_TYPE(ha))
1722                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1723                 else
1724                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1725         }
1726 }
1727
1728 srb_t *
1729 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1730     struct req_que *req, void *iocb)
1731 {
1732         struct qla_hw_data *ha = vha->hw;
1733         sts_entry_t *pkt = iocb;
1734         srb_t *sp;
1735         uint16_t index;
1736
1737         index = LSW(pkt->handle);
1738         if (index >= req->num_outstanding_cmds) {
1739                 ql_log(ql_log_warn, vha, 0x5031,
1740                            "%s: Invalid command index (%x) type %8ph.\n",
1741                            func, index, iocb);
1742                 if (IS_P3P_TYPE(ha))
1743                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1744                 else
1745                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1746                 return NULL;
1747         }
1748         sp = req->outstanding_cmds[index];
1749         if (!sp) {
1750                 ql_log(ql_log_warn, vha, 0x5032,
1751                         "%s: Invalid completion handle (%x) -- timed-out.\n",
1752                         func, index);
1753                 return NULL;
1754         }
1755         if (sp->handle != index) {
1756                 ql_log(ql_log_warn, vha, 0x5033,
1757                         "%s: SRB handle (%x) mismatch %x.\n", func,
1758                         sp->handle, index);
1759                 return NULL;
1760         }
1761
1762         req->outstanding_cmds[index] = NULL;
1763         return sp;
1764 }
1765
1766 static void
1767 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1768     struct mbx_entry *mbx)
1769 {
1770         const char func[] = "MBX-IOCB";
1771         const char *type;
1772         fc_port_t *fcport;
1773         srb_t *sp;
1774         struct srb_iocb *lio;
1775         uint16_t *data;
1776         uint16_t status;
1777
1778         sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1779         if (!sp)
1780                 return;
1781
1782         lio = &sp->u.iocb_cmd;
1783         type = sp->name;
1784         fcport = sp->fcport;
1785         data = lio->u.logio.data;
1786
1787         data[0] = MBS_COMMAND_ERROR;
1788         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1789             QLA_LOGIO_LOGIN_RETRIED : 0;
1790         if (mbx->entry_status) {
1791                 ql_dbg(ql_dbg_async, vha, 0x5043,
1792                     "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1793                     "entry-status=%x status=%x state-flag=%x "
1794                     "status-flags=%x.\n", type, sp->handle,
1795                     fcport->d_id.b.domain, fcport->d_id.b.area,
1796                     fcport->d_id.b.al_pa, mbx->entry_status,
1797                     le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1798                     le16_to_cpu(mbx->status_flags));
1799
1800                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1801                     mbx, sizeof(*mbx));
1802
1803                 goto logio_done;
1804         }
1805
1806         status = le16_to_cpu(mbx->status);
1807         if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1808             le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1809                 status = 0;
1810         if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1811                 ql_dbg(ql_dbg_async, vha, 0x5045,
1812                     "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1813                     type, sp->handle, fcport->d_id.b.domain,
1814                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1815                     le16_to_cpu(mbx->mb1));
1816
1817                 data[0] = MBS_COMMAND_COMPLETE;
1818                 if (sp->type == SRB_LOGIN_CMD) {
1819                         fcport->port_type = FCT_TARGET;
1820                         if (le16_to_cpu(mbx->mb1) & BIT_0)
1821                                 fcport->port_type = FCT_INITIATOR;
1822                         else if (le16_to_cpu(mbx->mb1) & BIT_1)
1823                                 fcport->flags |= FCF_FCP2_DEVICE;
1824                 }
1825                 goto logio_done;
1826         }
1827
1828         data[0] = le16_to_cpu(mbx->mb0);
1829         switch (data[0]) {
1830         case MBS_PORT_ID_USED:
1831                 data[1] = le16_to_cpu(mbx->mb1);
1832                 break;
1833         case MBS_LOOP_ID_USED:
1834                 break;
1835         default:
1836                 data[0] = MBS_COMMAND_ERROR;
1837                 break;
1838         }
1839
1840         ql_log(ql_log_warn, vha, 0x5046,
1841             "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1842             "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1843             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1844             status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1845             le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1846             le16_to_cpu(mbx->mb7));
1847
1848 logio_done:
1849         sp->done(sp, 0);
1850 }
1851
1852 static void
1853 qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1854     struct mbx_24xx_entry *pkt)
1855 {
1856         const char func[] = "MBX-IOCB2";
1857         struct qla_hw_data *ha = vha->hw;
1858         srb_t *sp;
1859         struct srb_iocb *si;
1860         u16 sz, i;
1861         int res;
1862
1863         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1864         if (!sp)
1865                 return;
1866
1867         if (sp->type == SRB_SCSI_CMD ||
1868             sp->type == SRB_NVME_CMD ||
1869             sp->type == SRB_TM_CMD) {
1870                 ql_log(ql_log_warn, vha, 0x509d,
1871                         "Inconsistent event entry type %d\n", sp->type);
1872                 if (IS_P3P_TYPE(ha))
1873                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1874                 else
1875                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1876                 return;
1877         }
1878
1879         si = &sp->u.iocb_cmd;
1880         sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
1881
1882         for (i = 0; i < sz; i++)
1883                 si->u.mbx.in_mb[i] = pkt->mb[i];
1884
1885         res = (si->u.mbx.in_mb[0] & MBS_MASK);
1886
1887         sp->done(sp, res);
1888 }
1889
1890 static void
1891 qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1892     struct nack_to_isp *pkt)
1893 {
1894         const char func[] = "nack";
1895         srb_t *sp;
1896         int res = 0;
1897
1898         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1899         if (!sp)
1900                 return;
1901
1902         if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
1903                 res = QLA_FUNCTION_FAILED;
1904
1905         sp->done(sp, res);
1906 }
1907
1908 static void
1909 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1910     sts_entry_t *pkt, int iocb_type)
1911 {
1912         const char func[] = "CT_IOCB";
1913         const char *type;
1914         srb_t *sp;
1915         struct bsg_job *bsg_job;
1916         struct fc_bsg_reply *bsg_reply;
1917         uint16_t comp_status;
1918         int res = 0;
1919
1920         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1921         if (!sp)
1922                 return;
1923
1924         switch (sp->type) {
1925         case SRB_CT_CMD:
1926             bsg_job = sp->u.bsg_job;
1927             bsg_reply = bsg_job->reply;
1928
1929             type = "ct pass-through";
1930
1931             comp_status = le16_to_cpu(pkt->comp_status);
1932
1933             /*
1934              * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1935              * fc payload  to the caller
1936              */
1937             bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1938             bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1939
1940             if (comp_status != CS_COMPLETE) {
1941                     if (comp_status == CS_DATA_UNDERRUN) {
1942                             res = DID_OK << 16;
1943                             bsg_reply->reply_payload_rcv_len =
1944                                 le16_to_cpu(pkt->rsp_info_len);
1945
1946                             ql_log(ql_log_warn, vha, 0x5048,
1947                                 "CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
1948                                 type, comp_status,
1949                                 bsg_reply->reply_payload_rcv_len);
1950                     } else {
1951                             ql_log(ql_log_warn, vha, 0x5049,
1952                                 "CT pass-through-%s error comp_status=0x%x.\n",
1953                                 type, comp_status);
1954                             res = DID_ERROR << 16;
1955                             bsg_reply->reply_payload_rcv_len = 0;
1956                     }
1957                     ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1958                         pkt, sizeof(*pkt));
1959             } else {
1960                     res = DID_OK << 16;
1961                     bsg_reply->reply_payload_rcv_len =
1962                         bsg_job->reply_payload.payload_len;
1963                     bsg_job->reply_len = 0;
1964             }
1965             break;
1966         case SRB_CT_PTHRU_CMD:
1967             /*
1968              * borrowing sts_entry_24xx.comp_status.
1969              * same location as ct_entry_24xx.comp_status
1970              */
1971              res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
1972                  (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1973                  sp->name);
1974              break;
1975         }
1976
1977         sp->done(sp, res);
1978 }
1979
1980 static void
1981 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1982     struct sts_entry_24xx *pkt, int iocb_type)
1983 {
1984         struct els_sts_entry_24xx *ese = (struct els_sts_entry_24xx *)pkt;
1985         const char func[] = "ELS_CT_IOCB";
1986         const char *type;
1987         srb_t *sp;
1988         struct bsg_job *bsg_job;
1989         struct fc_bsg_reply *bsg_reply;
1990         uint16_t comp_status;
1991         uint32_t fw_status[3];
1992         int res;
1993         struct srb_iocb *els;
1994
1995         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1996         if (!sp)
1997                 return;
1998
1999         type = NULL;
2000         switch (sp->type) {
2001         case SRB_ELS_CMD_RPT:
2002         case SRB_ELS_CMD_HST:
2003                 type = "els";
2004                 break;
2005         case SRB_CT_CMD:
2006                 type = "ct pass-through";
2007                 break;
2008         case SRB_ELS_DCMD:
2009                 type = "Driver ELS logo";
2010                 if (iocb_type != ELS_IOCB_TYPE) {
2011                         ql_dbg(ql_dbg_user, vha, 0x5047,
2012                             "Completing %s: (%p) type=%d.\n",
2013                             type, sp, sp->type);
2014                         sp->done(sp, 0);
2015                         return;
2016                 }
2017                 break;
2018         case SRB_CT_PTHRU_CMD:
2019                 /* borrowing sts_entry_24xx.comp_status.
2020                    same location as ct_entry_24xx.comp_status
2021                  */
2022                 res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
2023                         (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
2024                         sp->name);
2025                 sp->done(sp, res);
2026                 return;
2027         default:
2028                 ql_dbg(ql_dbg_user, vha, 0x503e,
2029                     "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
2030                 return;
2031         }
2032
2033         comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
2034         fw_status[1] = le32_to_cpu(ese->error_subcode_1);
2035         fw_status[2] = le32_to_cpu(ese->error_subcode_2);
2036
2037         if (iocb_type == ELS_IOCB_TYPE) {
2038                 els = &sp->u.iocb_cmd;
2039                 els->u.els_plogi.fw_status[0] = cpu_to_le32(fw_status[0]);
2040                 els->u.els_plogi.fw_status[1] = cpu_to_le32(fw_status[1]);
2041                 els->u.els_plogi.fw_status[2] = cpu_to_le32(fw_status[2]);
2042                 els->u.els_plogi.comp_status = cpu_to_le16(fw_status[0]);
2043                 if (comp_status == CS_COMPLETE) {
2044                         res =  DID_OK << 16;
2045                 } else {
2046                         if (comp_status == CS_DATA_UNDERRUN) {
2047                                 res =  DID_OK << 16;
2048                                 els->u.els_plogi.len = cpu_to_le16(le32_to_cpu(
2049                                         ese->total_byte_count));
2050                         } else {
2051                                 els->u.els_plogi.len = 0;
2052                                 res = DID_ERROR << 16;
2053                         }
2054                 }
2055                 ql_dbg(ql_dbg_disc, vha, 0x503f,
2056                     "ELS IOCB Done -%s hdl=%x comp_status=0x%x error subcode 1=0x%x error subcode 2=0x%x total_byte=0x%x\n",
2057                     type, sp->handle, comp_status, fw_status[1], fw_status[2],
2058                     le32_to_cpu(ese->total_byte_count));
2059                 goto els_ct_done;
2060         }
2061
2062         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
2063          * fc payload  to the caller
2064          */
2065         bsg_job = sp->u.bsg_job;
2066         bsg_reply = bsg_job->reply;
2067         bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
2068         bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
2069
2070         if (comp_status != CS_COMPLETE) {
2071                 if (comp_status == CS_DATA_UNDERRUN) {
2072                         res = DID_OK << 16;
2073                         bsg_reply->reply_payload_rcv_len =
2074                                 le32_to_cpu(ese->total_byte_count);
2075
2076                         ql_dbg(ql_dbg_user, vha, 0x503f,
2077                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2078                             "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
2079                             type, sp->handle, comp_status, fw_status[1], fw_status[2],
2080                             le32_to_cpu(ese->total_byte_count));
2081                 } else {
2082                         ql_dbg(ql_dbg_user, vha, 0x5040,
2083                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2084                             "error subcode 1=0x%x error subcode 2=0x%x.\n",
2085                             type, sp->handle, comp_status,
2086                             le32_to_cpu(ese->error_subcode_1),
2087                             le32_to_cpu(ese->error_subcode_2));
2088                         res = DID_ERROR << 16;
2089                         bsg_reply->reply_payload_rcv_len = 0;
2090                 }
2091                 memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
2092                        fw_status, sizeof(fw_status));
2093                 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
2094                     pkt, sizeof(*pkt));
2095         }
2096         else {
2097                 res =  DID_OK << 16;
2098                 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
2099                 bsg_job->reply_len = 0;
2100         }
2101 els_ct_done:
2102
2103         sp->done(sp, res);
2104 }
2105
2106 static void
2107 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
2108     struct logio_entry_24xx *logio)
2109 {
2110         const char func[] = "LOGIO-IOCB";
2111         const char *type;
2112         fc_port_t *fcport;
2113         srb_t *sp;
2114         struct srb_iocb *lio;
2115         uint16_t *data;
2116         uint32_t iop[2];
2117
2118         sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
2119         if (!sp)
2120                 return;
2121
2122         lio = &sp->u.iocb_cmd;
2123         type = sp->name;
2124         fcport = sp->fcport;
2125         data = lio->u.logio.data;
2126
2127         data[0] = MBS_COMMAND_ERROR;
2128         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
2129                 QLA_LOGIO_LOGIN_RETRIED : 0;
2130         if (logio->entry_status) {
2131                 ql_log(ql_log_warn, fcport->vha, 0x5034,
2132                     "Async-%s error entry - %8phC hdl=%x"
2133                     "portid=%02x%02x%02x entry-status=%x.\n",
2134                     type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
2135                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
2136                     logio->entry_status);
2137                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
2138                     logio, sizeof(*logio));
2139
2140                 goto logio_done;
2141         }
2142
2143         if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
2144                 ql_dbg(ql_dbg_async, sp->vha, 0x5036,
2145                     "Async-%s complete: handle=%x pid=%06x wwpn=%8phC iop0=%x\n",
2146                     type, sp->handle, fcport->d_id.b24, fcport->port_name,
2147                     le32_to_cpu(logio->io_parameter[0]));
2148
2149                 vha->hw->exch_starvation = 0;
2150                 data[0] = MBS_COMMAND_COMPLETE;
2151
2152                 if (sp->type == SRB_PRLI_CMD) {
2153                         lio->u.logio.iop[0] =
2154                             le32_to_cpu(logio->io_parameter[0]);
2155                         lio->u.logio.iop[1] =
2156                             le32_to_cpu(logio->io_parameter[1]);
2157                         goto logio_done;
2158                 }
2159
2160                 if (sp->type != SRB_LOGIN_CMD)
2161                         goto logio_done;
2162
2163                 iop[0] = le32_to_cpu(logio->io_parameter[0]);
2164                 if (iop[0] & BIT_4) {
2165                         fcport->port_type = FCT_TARGET;
2166                         if (iop[0] & BIT_8)
2167                                 fcport->flags |= FCF_FCP2_DEVICE;
2168                 } else if (iop[0] & BIT_5)
2169                         fcport->port_type = FCT_INITIATOR;
2170
2171                 if (iop[0] & BIT_7)
2172                         fcport->flags |= FCF_CONF_COMP_SUPPORTED;
2173
2174                 if (logio->io_parameter[7] || logio->io_parameter[8])
2175                         fcport->supported_classes |= FC_COS_CLASS2;
2176                 if (logio->io_parameter[9] || logio->io_parameter[10])
2177                         fcport->supported_classes |= FC_COS_CLASS3;
2178
2179                 goto logio_done;
2180         }
2181
2182         iop[0] = le32_to_cpu(logio->io_parameter[0]);
2183         iop[1] = le32_to_cpu(logio->io_parameter[1]);
2184         lio->u.logio.iop[0] = iop[0];
2185         lio->u.logio.iop[1] = iop[1];
2186         switch (iop[0]) {
2187         case LSC_SCODE_PORTID_USED:
2188                 data[0] = MBS_PORT_ID_USED;
2189                 data[1] = LSW(iop[1]);
2190                 break;
2191         case LSC_SCODE_NPORT_USED:
2192                 data[0] = MBS_LOOP_ID_USED;
2193                 break;
2194         case LSC_SCODE_CMD_FAILED:
2195                 if (iop[1] == 0x0606) {
2196                         /*
2197                          * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
2198                          * Target side acked.
2199                          */
2200                         data[0] = MBS_COMMAND_COMPLETE;
2201                         goto logio_done;
2202                 }
2203                 data[0] = MBS_COMMAND_ERROR;
2204                 break;
2205         case LSC_SCODE_NOXCB:
2206                 vha->hw->exch_starvation++;
2207                 if (vha->hw->exch_starvation > 5) {
2208                         ql_log(ql_log_warn, vha, 0xd046,
2209                             "Exchange starvation. Resetting RISC\n");
2210
2211                         vha->hw->exch_starvation = 0;
2212
2213                         if (IS_P3P_TYPE(vha->hw))
2214                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2215                         else
2216                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2217                         qla2xxx_wake_dpc(vha);
2218                 }
2219                 fallthrough;
2220         default:
2221                 data[0] = MBS_COMMAND_ERROR;
2222                 break;
2223         }
2224
2225         ql_log(ql_log_warn, sp->vha, 0x5037,
2226                "Async-%s failed: handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
2227                type, sp->handle, fcport->d_id.b24, fcport->port_name,
2228                le16_to_cpu(logio->comp_status),
2229                le32_to_cpu(logio->io_parameter[0]),
2230                le32_to_cpu(logio->io_parameter[1]));
2231
2232 logio_done:
2233         sp->done(sp, 0);
2234 }
2235
2236 static void
2237 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
2238 {
2239         const char func[] = "TMF-IOCB";
2240         const char *type;
2241         fc_port_t *fcport;
2242         srb_t *sp;
2243         struct srb_iocb *iocb;
2244         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2245         u16 comp_status;
2246
2247         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
2248         if (!sp)
2249                 return;
2250
2251         comp_status = le16_to_cpu(sts->comp_status);
2252         iocb = &sp->u.iocb_cmd;
2253         type = sp->name;
2254         fcport = sp->fcport;
2255         iocb->u.tmf.data = QLA_SUCCESS;
2256
2257         if (sts->entry_status) {
2258                 ql_log(ql_log_warn, fcport->vha, 0x5038,
2259                     "Async-%s error - hdl=%x entry-status(%x).\n",
2260                     type, sp->handle, sts->entry_status);
2261                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2262         } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
2263                 ql_log(ql_log_warn, fcport->vha, 0x5039,
2264                     "Async-%s error - hdl=%x completion status(%x).\n",
2265                     type, sp->handle, comp_status);
2266                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2267         } else if ((le16_to_cpu(sts->scsi_status) &
2268             SS_RESPONSE_INFO_LEN_VALID)) {
2269                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
2270                         ql_log(ql_log_warn, fcport->vha, 0x503b,
2271                             "Async-%s error - hdl=%x not enough response(%d).\n",
2272                             type, sp->handle, sts->rsp_data_len);
2273                 } else if (sts->data[3]) {
2274                         ql_log(ql_log_warn, fcport->vha, 0x503c,
2275                             "Async-%s error - hdl=%x response(%x).\n",
2276                             type, sp->handle, sts->data[3]);
2277                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2278                 }
2279         }
2280
2281         switch (comp_status) {
2282         case CS_PORT_LOGGED_OUT:
2283         case CS_PORT_CONFIG_CHG:
2284         case CS_PORT_BUSY:
2285         case CS_INCOMPLETE:
2286         case CS_PORT_UNAVAILABLE:
2287         case CS_TIMEOUT:
2288         case CS_RESET:
2289                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2290                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2291                                "-Port to be marked lost on fcport=%02x%02x%02x, current port state= %s comp_status %x.\n",
2292                                fcport->d_id.b.domain, fcport->d_id.b.area,
2293                                fcport->d_id.b.al_pa,
2294                                port_state_str[FCS_ONLINE],
2295                                comp_status);
2296
2297                         qlt_schedule_sess_for_deletion(fcport);
2298                 }
2299                 break;
2300
2301         default:
2302                 break;
2303         }
2304
2305         if (iocb->u.tmf.data != QLA_SUCCESS)
2306                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, sp->vha, 0x5055,
2307                     sts, sizeof(*sts));
2308
2309         sp->done(sp, 0);
2310 }
2311
2312 static void qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2313     void *tsk, srb_t *sp)
2314 {
2315         fc_port_t *fcport;
2316         struct srb_iocb *iocb;
2317         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2318         uint16_t        state_flags;
2319         struct nvmefc_fcp_req *fd;
2320         uint16_t        ret = QLA_SUCCESS;
2321         __le16          comp_status = sts->comp_status;
2322         int             logit = 0;
2323
2324         iocb = &sp->u.iocb_cmd;
2325         fcport = sp->fcport;
2326         iocb->u.nvme.comp_status = comp_status;
2327         state_flags  = le16_to_cpu(sts->state_flags);
2328         fd = iocb->u.nvme.desc;
2329
2330         if (unlikely(iocb->u.nvme.aen_op))
2331                 atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
2332
2333         if (unlikely(comp_status != CS_COMPLETE))
2334                 logit = 1;
2335
2336         fd->transferred_length = fd->payload_length -
2337             le32_to_cpu(sts->residual_len);
2338
2339         /*
2340          * State flags: Bit 6 and 0.
2341          * If 0 is set, we don't care about 6.
2342          * both cases resp was dma'd to host buffer
2343          * if both are 0, that is good path case.
2344          * if six is set and 0 is clear, we need to
2345          * copy resp data from status iocb to resp buffer.
2346          */
2347         if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
2348                 iocb->u.nvme.rsp_pyld_len = 0;
2349         } else if ((state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP)) ==
2350                         (SF_FCP_RSP_DMA | SF_NVME_ERSP)) {
2351                 /* Response already DMA'd to fd->rspaddr. */
2352                 iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2353         } else if ((state_flags & SF_FCP_RSP_DMA)) {
2354                 /*
2355                  * Non-zero value in first 12 bytes of NVMe_RSP IU, treat this
2356                  * as an error.
2357                  */
2358                 iocb->u.nvme.rsp_pyld_len = 0;
2359                 fd->transferred_length = 0;
2360                 ql_dbg(ql_dbg_io, fcport->vha, 0x307a,
2361                         "Unexpected values in NVMe_RSP IU.\n");
2362                 logit = 1;
2363         } else if (state_flags & SF_NVME_ERSP) {
2364                 uint32_t *inbuf, *outbuf;
2365                 uint16_t iter;
2366
2367                 inbuf = (uint32_t *)&sts->nvme_ersp_data;
2368                 outbuf = (uint32_t *)fd->rspaddr;
2369                 iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2370                 if (unlikely(le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >
2371                     sizeof(struct nvme_fc_ersp_iu))) {
2372                         if (ql_mask_match(ql_dbg_io)) {
2373                                 WARN_ONCE(1, "Unexpected response payload length %u.\n",
2374                                     iocb->u.nvme.rsp_pyld_len);
2375                                 ql_log(ql_log_warn, fcport->vha, 0x5100,
2376                                     "Unexpected response payload length %u.\n",
2377                                     iocb->u.nvme.rsp_pyld_len);
2378                         }
2379                         iocb->u.nvme.rsp_pyld_len =
2380                                 cpu_to_le16(sizeof(struct nvme_fc_ersp_iu));
2381                 }
2382                 iter = le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >> 2;
2383                 for (; iter; iter--)
2384                         *outbuf++ = swab32(*inbuf++);
2385         }
2386
2387         if (state_flags & SF_NVME_ERSP) {
2388                 struct nvme_fc_ersp_iu *rsp_iu = fd->rspaddr;
2389                 u32 tgt_xfer_len;
2390
2391                 tgt_xfer_len = be32_to_cpu(rsp_iu->xfrd_len);
2392                 if (fd->transferred_length != tgt_xfer_len) {
2393                         ql_log(ql_log_warn, fcport->vha, 0x3079,
2394                                "Dropped frame(s) detected (sent/rcvd=%u/%u).\n",
2395                                tgt_xfer_len, fd->transferred_length);
2396                         logit = 1;
2397                 } else if (le16_to_cpu(comp_status) == CS_DATA_UNDERRUN) {
2398                         /*
2399                          * Do not log if this is just an underflow and there
2400                          * is no data loss.
2401                          */
2402                         logit = 0;
2403                 }
2404         }
2405
2406         if (unlikely(logit))
2407                 ql_log(ql_log_warn, fcport->vha, 0x5060,
2408                    "NVME-%s ERR Handling - hdl=%x status(%x) tr_len:%x resid=%x  ox_id=%x\n",
2409                    sp->name, sp->handle, comp_status,
2410                    fd->transferred_length, le32_to_cpu(sts->residual_len),
2411                    sts->ox_id);
2412
2413         /*
2414          * If transport error then Failure (HBA rejects request)
2415          * otherwise transport will handle.
2416          */
2417         switch (le16_to_cpu(comp_status)) {
2418         case CS_COMPLETE:
2419                 break;
2420
2421         case CS_RESET:
2422         case CS_PORT_UNAVAILABLE:
2423         case CS_PORT_LOGGED_OUT:
2424                 fcport->nvme_flag |= NVME_FLAG_RESETTING;
2425                 fallthrough;
2426         case CS_ABORTED:
2427         case CS_PORT_BUSY:
2428                 fd->transferred_length = 0;
2429                 iocb->u.nvme.rsp_pyld_len = 0;
2430                 ret = QLA_ABORTED;
2431                 break;
2432         case CS_DATA_UNDERRUN:
2433                 break;
2434         default:
2435                 ret = QLA_FUNCTION_FAILED;
2436                 break;
2437         }
2438         sp->done(sp, ret);
2439 }
2440
2441 static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
2442     struct vp_ctrl_entry_24xx *vce)
2443 {
2444         const char func[] = "CTRLVP-IOCB";
2445         srb_t *sp;
2446         int rval = QLA_SUCCESS;
2447
2448         sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
2449         if (!sp)
2450                 return;
2451
2452         if (vce->entry_status != 0) {
2453                 ql_dbg(ql_dbg_vport, vha, 0x10c4,
2454                     "%s: Failed to complete IOCB -- error status (%x)\n",
2455                     sp->name, vce->entry_status);
2456                 rval = QLA_FUNCTION_FAILED;
2457         } else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
2458                 ql_dbg(ql_dbg_vport, vha, 0x10c5,
2459                     "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
2460                     sp->name, le16_to_cpu(vce->comp_status),
2461                     le16_to_cpu(vce->vp_idx_failed));
2462                 rval = QLA_FUNCTION_FAILED;
2463         } else {
2464                 ql_dbg(ql_dbg_vport, vha, 0x10c6,
2465                     "Done %s.\n", __func__);
2466         }
2467
2468         sp->rc = rval;
2469         sp->done(sp, rval);
2470 }
2471
2472 /* Process a single response queue entry. */
2473 static void qla2x00_process_response_entry(struct scsi_qla_host *vha,
2474                                            struct rsp_que *rsp,
2475                                            sts_entry_t *pkt)
2476 {
2477         sts21_entry_t *sts21_entry;
2478         sts22_entry_t *sts22_entry;
2479         uint16_t handle_cnt;
2480         uint16_t cnt;
2481
2482         switch (pkt->entry_type) {
2483         case STATUS_TYPE:
2484                 qla2x00_status_entry(vha, rsp, pkt);
2485                 break;
2486         case STATUS_TYPE_21:
2487                 sts21_entry = (sts21_entry_t *)pkt;
2488                 handle_cnt = sts21_entry->handle_count;
2489                 for (cnt = 0; cnt < handle_cnt; cnt++)
2490                         qla2x00_process_completed_request(vha, rsp->req,
2491                                                 sts21_entry->handle[cnt]);
2492                 break;
2493         case STATUS_TYPE_22:
2494                 sts22_entry = (sts22_entry_t *)pkt;
2495                 handle_cnt = sts22_entry->handle_count;
2496                 for (cnt = 0; cnt < handle_cnt; cnt++)
2497                         qla2x00_process_completed_request(vha, rsp->req,
2498                                                 sts22_entry->handle[cnt]);
2499                 break;
2500         case STATUS_CONT_TYPE:
2501                 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2502                 break;
2503         case MBX_IOCB_TYPE:
2504                 qla2x00_mbx_iocb_entry(vha, rsp->req, (struct mbx_entry *)pkt);
2505                 break;
2506         case CT_IOCB_TYPE:
2507                 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2508                 break;
2509         default:
2510                 /* Type Not Supported. */
2511                 ql_log(ql_log_warn, vha, 0x504a,
2512                        "Received unknown response pkt type %x entry status=%x.\n",
2513                        pkt->entry_type, pkt->entry_status);
2514                 break;
2515         }
2516 }
2517
2518 /**
2519  * qla2x00_process_response_queue() - Process response queue entries.
2520  * @rsp: response queue
2521  */
2522 void
2523 qla2x00_process_response_queue(struct rsp_que *rsp)
2524 {
2525         struct scsi_qla_host *vha;
2526         struct qla_hw_data *ha = rsp->hw;
2527         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2528         sts_entry_t     *pkt;
2529
2530         vha = pci_get_drvdata(ha->pdev);
2531
2532         if (!vha->flags.online)
2533                 return;
2534
2535         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2536                 pkt = (sts_entry_t *)rsp->ring_ptr;
2537
2538                 rsp->ring_index++;
2539                 if (rsp->ring_index == rsp->length) {
2540                         rsp->ring_index = 0;
2541                         rsp->ring_ptr = rsp->ring;
2542                 } else {
2543                         rsp->ring_ptr++;
2544                 }
2545
2546                 if (pkt->entry_status != 0) {
2547                         qla2x00_error_entry(vha, rsp, pkt);
2548                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2549                         wmb();
2550                         continue;
2551                 }
2552
2553                 qla2x00_process_response_entry(vha, rsp, pkt);
2554                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2555                 wmb();
2556         }
2557
2558         /* Adjust ring index */
2559         wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
2560 }
2561
2562 static inline void
2563 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2564                      uint32_t sense_len, struct rsp_que *rsp, int res)
2565 {
2566         struct scsi_qla_host *vha = sp->vha;
2567         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2568         uint32_t track_sense_len;
2569
2570         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2571                 sense_len = SCSI_SENSE_BUFFERSIZE;
2572
2573         SET_CMD_SENSE_LEN(sp, sense_len);
2574         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2575         track_sense_len = sense_len;
2576
2577         if (sense_len > par_sense_len)
2578                 sense_len = par_sense_len;
2579
2580         memcpy(cp->sense_buffer, sense_data, sense_len);
2581
2582         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2583         track_sense_len -= sense_len;
2584         SET_CMD_SENSE_LEN(sp, track_sense_len);
2585
2586         if (track_sense_len != 0) {
2587                 rsp->status_srb = sp;
2588                 cp->result = res;
2589         }
2590
2591         if (sense_len) {
2592                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
2593                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2594                     sp->vha->host_no, cp->device->id, cp->device->lun,
2595                     cp);
2596                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
2597                     cp->sense_buffer, sense_len);
2598         }
2599 }
2600
2601 struct scsi_dif_tuple {
2602         __be16 guard;       /* Checksum */
2603         __be16 app_tag;         /* APPL identifier */
2604         __be32 ref_tag;         /* Target LBA or indirect LBA */
2605 };
2606
2607 /*
2608  * Checks the guard or meta-data for the type of error
2609  * detected by the HBA. In case of errors, we set the
2610  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
2611  * to indicate to the kernel that the HBA detected error.
2612  */
2613 static inline int
2614 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
2615 {
2616         struct scsi_qla_host *vha = sp->vha;
2617         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2618         uint8_t         *ap = &sts24->data[12];
2619         uint8_t         *ep = &sts24->data[20];
2620         uint32_t        e_ref_tag, a_ref_tag;
2621         uint16_t        e_app_tag, a_app_tag;
2622         uint16_t        e_guard, a_guard;
2623
2624         /*
2625          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
2626          * would make guard field appear at offset 2
2627          */
2628         a_guard   = get_unaligned_le16(ap + 2);
2629         a_app_tag = get_unaligned_le16(ap + 0);
2630         a_ref_tag = get_unaligned_le32(ap + 4);
2631         e_guard   = get_unaligned_le16(ep + 2);
2632         e_app_tag = get_unaligned_le16(ep + 0);
2633         e_ref_tag = get_unaligned_le32(ep + 4);
2634
2635         ql_dbg(ql_dbg_io, vha, 0x3023,
2636             "iocb(s) %p Returned STATUS.\n", sts24);
2637
2638         ql_dbg(ql_dbg_io, vha, 0x3024,
2639             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
2640             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
2641             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
2642             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
2643             a_app_tag, e_app_tag, a_guard, e_guard);
2644
2645         /*
2646          * Ignore sector if:
2647          * For type     3: ref & app tag is all 'f's
2648          * For type 0,1,2: app tag is all 'f's
2649          */
2650         if (a_app_tag == be16_to_cpu(T10_PI_APP_ESCAPE) &&
2651             (scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3 ||
2652              a_ref_tag == be32_to_cpu(T10_PI_REF_ESCAPE))) {
2653                 uint32_t blocks_done, resid;
2654                 sector_t lba_s = scsi_get_lba(cmd);
2655
2656                 /* 2TB boundary case covered automatically with this */
2657                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
2658
2659                 resid = scsi_bufflen(cmd) - (blocks_done *
2660                     cmd->device->sector_size);
2661
2662                 scsi_set_resid(cmd, resid);
2663                 cmd->result = DID_OK << 16;
2664
2665                 /* Update protection tag */
2666                 if (scsi_prot_sg_count(cmd)) {
2667                         uint32_t i, j = 0, k = 0, num_ent;
2668                         struct scatterlist *sg;
2669                         struct t10_pi_tuple *spt;
2670
2671                         /* Patch the corresponding protection tags */
2672                         scsi_for_each_prot_sg(cmd, sg,
2673                             scsi_prot_sg_count(cmd), i) {
2674                                 num_ent = sg_dma_len(sg) / 8;
2675                                 if (k + num_ent < blocks_done) {
2676                                         k += num_ent;
2677                                         continue;
2678                                 }
2679                                 j = blocks_done - k - 1;
2680                                 k = blocks_done;
2681                                 break;
2682                         }
2683
2684                         if (k != blocks_done) {
2685                                 ql_log(ql_log_warn, vha, 0x302f,
2686                                     "unexpected tag values tag:lba=%x:%llx)\n",
2687                                     e_ref_tag, (unsigned long long)lba_s);
2688                                 return 1;
2689                         }
2690
2691                         spt = page_address(sg_page(sg)) + sg->offset;
2692                         spt += j;
2693
2694                         spt->app_tag = T10_PI_APP_ESCAPE;
2695                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
2696                                 spt->ref_tag = T10_PI_REF_ESCAPE;
2697                 }
2698
2699                 return 0;
2700         }
2701
2702         /* check guard */
2703         if (e_guard != a_guard) {
2704                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2705                     0x10, 0x1);
2706                 set_driver_byte(cmd, DRIVER_SENSE);
2707                 set_host_byte(cmd, DID_ABORT);
2708                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2709                 return 1;
2710         }
2711
2712         /* check ref tag */
2713         if (e_ref_tag != a_ref_tag) {
2714                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2715                     0x10, 0x3);
2716                 set_driver_byte(cmd, DRIVER_SENSE);
2717                 set_host_byte(cmd, DID_ABORT);
2718                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2719                 return 1;
2720         }
2721
2722         /* check appl tag */
2723         if (e_app_tag != a_app_tag) {
2724                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2725                     0x10, 0x2);
2726                 set_driver_byte(cmd, DRIVER_SENSE);
2727                 set_host_byte(cmd, DID_ABORT);
2728                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2729                 return 1;
2730         }
2731
2732         return 1;
2733 }
2734
2735 static void
2736 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2737                                   struct req_que *req, uint32_t index)
2738 {
2739         struct qla_hw_data *ha = vha->hw;
2740         srb_t *sp;
2741         uint16_t        comp_status;
2742         uint16_t        scsi_status;
2743         uint16_t thread_id;
2744         uint32_t rval = EXT_STATUS_OK;
2745         struct bsg_job *bsg_job = NULL;
2746         struct fc_bsg_request *bsg_request;
2747         struct fc_bsg_reply *bsg_reply;
2748         sts_entry_t *sts = pkt;
2749         struct sts_entry_24xx *sts24 = pkt;
2750
2751         /* Validate handle. */
2752         if (index >= req->num_outstanding_cmds) {
2753                 ql_log(ql_log_warn, vha, 0x70af,
2754                     "Invalid SCSI completion handle 0x%x.\n", index);
2755                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2756                 return;
2757         }
2758
2759         sp = req->outstanding_cmds[index];
2760         if (!sp) {
2761                 ql_log(ql_log_warn, vha, 0x70b0,
2762                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
2763                     req->id, index);
2764
2765                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2766                 return;
2767         }
2768
2769         /* Free outstanding command slot. */
2770         req->outstanding_cmds[index] = NULL;
2771         bsg_job = sp->u.bsg_job;
2772         bsg_request = bsg_job->request;
2773         bsg_reply = bsg_job->reply;
2774
2775         if (IS_FWI2_CAPABLE(ha)) {
2776                 comp_status = le16_to_cpu(sts24->comp_status);
2777                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2778         } else {
2779                 comp_status = le16_to_cpu(sts->comp_status);
2780                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2781         }
2782
2783         thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
2784         switch (comp_status) {
2785         case CS_COMPLETE:
2786                 if (scsi_status == 0) {
2787                         bsg_reply->reply_payload_rcv_len =
2788                                         bsg_job->reply_payload.payload_len;
2789                         vha->qla_stats.input_bytes +=
2790                                 bsg_reply->reply_payload_rcv_len;
2791                         vha->qla_stats.input_requests++;
2792                         rval = EXT_STATUS_OK;
2793                 }
2794                 goto done;
2795
2796         case CS_DATA_OVERRUN:
2797                 ql_dbg(ql_dbg_user, vha, 0x70b1,
2798                     "Command completed with data overrun thread_id=%d\n",
2799                     thread_id);
2800                 rval = EXT_STATUS_DATA_OVERRUN;
2801                 break;
2802
2803         case CS_DATA_UNDERRUN:
2804                 ql_dbg(ql_dbg_user, vha, 0x70b2,
2805                     "Command completed with data underrun thread_id=%d\n",
2806                     thread_id);
2807                 rval = EXT_STATUS_DATA_UNDERRUN;
2808                 break;
2809         case CS_BIDIR_RD_OVERRUN:
2810                 ql_dbg(ql_dbg_user, vha, 0x70b3,
2811                     "Command completed with read data overrun thread_id=%d\n",
2812                     thread_id);
2813                 rval = EXT_STATUS_DATA_OVERRUN;
2814                 break;
2815
2816         case CS_BIDIR_RD_WR_OVERRUN:
2817                 ql_dbg(ql_dbg_user, vha, 0x70b4,
2818                     "Command completed with read and write data overrun "
2819                     "thread_id=%d\n", thread_id);
2820                 rval = EXT_STATUS_DATA_OVERRUN;
2821                 break;
2822
2823         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
2824                 ql_dbg(ql_dbg_user, vha, 0x70b5,
2825                     "Command completed with read data over and write data "
2826                     "underrun thread_id=%d\n", thread_id);
2827                 rval = EXT_STATUS_DATA_OVERRUN;
2828                 break;
2829
2830         case CS_BIDIR_RD_UNDERRUN:
2831                 ql_dbg(ql_dbg_user, vha, 0x70b6,
2832                     "Command completed with read data underrun "
2833                     "thread_id=%d\n", thread_id);
2834                 rval = EXT_STATUS_DATA_UNDERRUN;
2835                 break;
2836
2837         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
2838                 ql_dbg(ql_dbg_user, vha, 0x70b7,
2839                     "Command completed with read data under and write data "
2840                     "overrun thread_id=%d\n", thread_id);
2841                 rval = EXT_STATUS_DATA_UNDERRUN;
2842                 break;
2843
2844         case CS_BIDIR_RD_WR_UNDERRUN:
2845                 ql_dbg(ql_dbg_user, vha, 0x70b8,
2846                     "Command completed with read and write data underrun "
2847                     "thread_id=%d\n", thread_id);
2848                 rval = EXT_STATUS_DATA_UNDERRUN;
2849                 break;
2850
2851         case CS_BIDIR_DMA:
2852                 ql_dbg(ql_dbg_user, vha, 0x70b9,
2853                     "Command completed with data DMA error thread_id=%d\n",
2854                     thread_id);
2855                 rval = EXT_STATUS_DMA_ERR;
2856                 break;
2857
2858         case CS_TIMEOUT:
2859                 ql_dbg(ql_dbg_user, vha, 0x70ba,
2860                     "Command completed with timeout thread_id=%d\n",
2861                     thread_id);
2862                 rval = EXT_STATUS_TIMEOUT;
2863                 break;
2864         default:
2865                 ql_dbg(ql_dbg_user, vha, 0x70bb,
2866                     "Command completed with completion status=0x%x "
2867                     "thread_id=%d\n", comp_status, thread_id);
2868                 rval = EXT_STATUS_ERR;
2869                 break;
2870         }
2871         bsg_reply->reply_payload_rcv_len = 0;
2872
2873 done:
2874         /* Return the vendor specific reply to API */
2875         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2876         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2877         /* Always return DID_OK, bsg will send the vendor specific response
2878          * in this case only */
2879         sp->done(sp, DID_OK << 16);
2880
2881 }
2882
2883 /**
2884  * qla2x00_status_entry() - Process a Status IOCB entry.
2885  * @vha: SCSI driver HA context
2886  * @rsp: response queue
2887  * @pkt: Entry pointer
2888  */
2889 static void
2890 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2891 {
2892         srb_t           *sp;
2893         fc_port_t       *fcport;
2894         struct scsi_cmnd *cp;
2895         sts_entry_t *sts = pkt;
2896         struct sts_entry_24xx *sts24 = pkt;
2897         uint16_t        comp_status;
2898         uint16_t        scsi_status;
2899         uint16_t        ox_id;
2900         uint8_t         lscsi_status;
2901         int32_t         resid;
2902         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2903             fw_resid_len;
2904         uint8_t         *rsp_info, *sense_data;
2905         struct qla_hw_data *ha = vha->hw;
2906         uint32_t handle;
2907         uint16_t que;
2908         struct req_que *req;
2909         int logit = 1;
2910         int res = 0;
2911         uint16_t state_flags = 0;
2912         uint16_t sts_qual = 0;
2913
2914         if (IS_FWI2_CAPABLE(ha)) {
2915                 comp_status = le16_to_cpu(sts24->comp_status);
2916                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2917                 state_flags = le16_to_cpu(sts24->state_flags);
2918         } else {
2919                 comp_status = le16_to_cpu(sts->comp_status);
2920                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2921         }
2922         handle = (uint32_t) LSW(sts->handle);
2923         que = MSW(sts->handle);
2924         req = ha->req_q_map[que];
2925
2926         /* Check for invalid queue pointer */
2927         if (req == NULL ||
2928             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2929                 ql_dbg(ql_dbg_io, vha, 0x3059,
2930                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2931                     "que=%u.\n", sts->handle, req, que);
2932                 return;
2933         }
2934
2935         /* Validate handle. */
2936         if (handle < req->num_outstanding_cmds) {
2937                 sp = req->outstanding_cmds[handle];
2938                 if (!sp) {
2939                         ql_dbg(ql_dbg_io, vha, 0x3075,
2940                             "%s(%ld): Already returned command for status handle (0x%x).\n",
2941                             __func__, vha->host_no, sts->handle);
2942                         return;
2943                 }
2944         } else {
2945                 ql_dbg(ql_dbg_io, vha, 0x3017,
2946                     "Invalid status handle, out of range (0x%x).\n",
2947                     sts->handle);
2948
2949                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2950                         if (IS_P3P_TYPE(ha))
2951                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2952                         else
2953                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2954                         qla2xxx_wake_dpc(vha);
2955                 }
2956                 return;
2957         }
2958         qla_put_iocbs(sp->qpair, &sp->iores);
2959
2960         if (sp->cmd_type != TYPE_SRB) {
2961                 req->outstanding_cmds[handle] = NULL;
2962                 ql_dbg(ql_dbg_io, vha, 0x3015,
2963                     "Unknown sp->cmd_type %x %p).\n",
2964                     sp->cmd_type, sp);
2965                 return;
2966         }
2967
2968         /* NVME completion. */
2969         if (sp->type == SRB_NVME_CMD) {
2970                 req->outstanding_cmds[handle] = NULL;
2971                 qla24xx_nvme_iocb_entry(vha, req, pkt, sp);
2972                 return;
2973         }
2974
2975         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2976                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2977                 return;
2978         }
2979
2980         /* Task Management completion. */
2981         if (sp->type == SRB_TM_CMD) {
2982                 qla24xx_tm_iocb_entry(vha, req, pkt);
2983                 return;
2984         }
2985
2986         /* Fast path completion. */
2987         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2988                 qla2x00_process_completed_request(vha, req, handle);
2989
2990                 return;
2991         }
2992
2993         req->outstanding_cmds[handle] = NULL;
2994         cp = GET_CMD_SP(sp);
2995         if (cp == NULL) {
2996                 ql_dbg(ql_dbg_io, vha, 0x3018,
2997                     "Command already returned (0x%x/%p).\n",
2998                     sts->handle, sp);
2999
3000                 return;
3001         }
3002
3003         lscsi_status = scsi_status & STATUS_MASK;
3004
3005         fcport = sp->fcport;
3006
3007         ox_id = 0;
3008         sense_len = par_sense_len = rsp_info_len = resid_len =
3009             fw_resid_len = 0;
3010         if (IS_FWI2_CAPABLE(ha)) {
3011                 if (scsi_status & SS_SENSE_LEN_VALID)
3012                         sense_len = le32_to_cpu(sts24->sense_len);
3013                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
3014                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
3015                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
3016                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
3017                 if (comp_status == CS_DATA_UNDERRUN)
3018                         fw_resid_len = le32_to_cpu(sts24->residual_len);
3019                 rsp_info = sts24->data;
3020                 sense_data = sts24->data;
3021                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
3022                 ox_id = le16_to_cpu(sts24->ox_id);
3023                 par_sense_len = sizeof(sts24->data);
3024                 sts_qual = le16_to_cpu(sts24->status_qualifier);
3025         } else {
3026                 if (scsi_status & SS_SENSE_LEN_VALID)
3027                         sense_len = le16_to_cpu(sts->req_sense_length);
3028                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
3029                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
3030                 resid_len = le32_to_cpu(sts->residual_length);
3031                 rsp_info = sts->rsp_info;
3032                 sense_data = sts->req_sense_data;
3033                 par_sense_len = sizeof(sts->req_sense_data);
3034         }
3035
3036         /* Check for any FCP transport errors. */
3037         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
3038                 /* Sense data lies beyond any FCP RESPONSE data. */
3039                 if (IS_FWI2_CAPABLE(ha)) {
3040                         sense_data += rsp_info_len;
3041                         par_sense_len -= rsp_info_len;
3042                 }
3043                 if (rsp_info_len > 3 && rsp_info[3]) {
3044                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
3045                             "FCP I/O protocol failure (0x%x/0x%x).\n",
3046                             rsp_info_len, rsp_info[3]);
3047
3048                         res = DID_BUS_BUSY << 16;
3049                         goto out;
3050                 }
3051         }
3052
3053         /* Check for overrun. */
3054         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
3055             scsi_status & SS_RESIDUAL_OVER)
3056                 comp_status = CS_DATA_OVERRUN;
3057
3058         /*
3059          * Check retry_delay_timer value if we receive a busy or
3060          * queue full.
3061          */
3062         if (unlikely(lscsi_status == SAM_STAT_TASK_SET_FULL ||
3063                      lscsi_status == SAM_STAT_BUSY))
3064                 qla2x00_set_retry_delay_timestamp(fcport, sts_qual);
3065
3066         /*
3067          * Based on Host and scsi status generate status code for Linux
3068          */
3069         switch (comp_status) {
3070         case CS_COMPLETE:
3071         case CS_QUEUE_FULL:
3072                 if (scsi_status == 0) {
3073                         res = DID_OK << 16;
3074                         break;
3075                 }
3076                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
3077                         resid = resid_len;
3078                         scsi_set_resid(cp, resid);
3079
3080                         if (!lscsi_status &&
3081                             ((unsigned)(scsi_bufflen(cp) - resid) <
3082                              cp->underflow)) {
3083                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
3084                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3085                                     resid, scsi_bufflen(cp));
3086
3087                                 res = DID_ERROR << 16;
3088                                 break;
3089                         }
3090                 }
3091                 res = DID_OK << 16 | lscsi_status;
3092
3093                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3094                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
3095                             "QUEUE FULL detected.\n");
3096                         break;
3097                 }
3098                 logit = 0;
3099                 if (lscsi_status != SS_CHECK_CONDITION)
3100                         break;
3101
3102                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3103                 if (!(scsi_status & SS_SENSE_LEN_VALID))
3104                         break;
3105
3106                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
3107                     rsp, res);
3108                 break;
3109
3110         case CS_DATA_UNDERRUN:
3111                 /* Use F/W calculated residual length. */
3112                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
3113                 scsi_set_resid(cp, resid);
3114                 if (scsi_status & SS_RESIDUAL_UNDER) {
3115                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
3116                                 ql_log(ql_log_warn, fcport->vha, 0x301d,
3117                                        "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3118                                        resid, scsi_bufflen(cp));
3119
3120                                 vha->interface_err_cnt++;
3121
3122                                 res = DID_ERROR << 16 | lscsi_status;
3123                                 goto check_scsi_status;
3124                         }
3125
3126                         if (!lscsi_status &&
3127                             ((unsigned)(scsi_bufflen(cp) - resid) <
3128                             cp->underflow)) {
3129                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
3130                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3131                                     resid, scsi_bufflen(cp));
3132
3133                                 res = DID_ERROR << 16;
3134                                 break;
3135                         }
3136                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
3137                             lscsi_status != SAM_STAT_BUSY) {
3138                         /*
3139                          * scsi status of task set and busy are considered to be
3140                          * task not completed.
3141                          */
3142
3143                         ql_log(ql_log_warn, fcport->vha, 0x301f,
3144                                "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3145                                resid, scsi_bufflen(cp));
3146
3147                         vha->interface_err_cnt++;
3148
3149                         res = DID_ERROR << 16 | lscsi_status;
3150                         goto check_scsi_status;
3151                 } else {
3152                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
3153                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
3154                             scsi_status, lscsi_status);
3155                 }
3156
3157                 res = DID_OK << 16 | lscsi_status;
3158                 logit = 0;
3159
3160 check_scsi_status:
3161                 /*
3162                  * Check to see if SCSI Status is non zero. If so report SCSI
3163                  * Status.
3164                  */
3165                 if (lscsi_status != 0) {
3166                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3167                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
3168                                     "QUEUE FULL detected.\n");
3169                                 logit = 1;
3170                                 break;
3171                         }
3172                         if (lscsi_status != SS_CHECK_CONDITION)
3173                                 break;
3174
3175                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3176                         if (!(scsi_status & SS_SENSE_LEN_VALID))
3177                                 break;
3178
3179                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
3180                             sense_len, rsp, res);
3181                 }
3182                 break;
3183
3184         case CS_PORT_LOGGED_OUT:
3185         case CS_PORT_CONFIG_CHG:
3186         case CS_PORT_BUSY:
3187         case CS_INCOMPLETE:
3188         case CS_PORT_UNAVAILABLE:
3189         case CS_TIMEOUT:
3190         case CS_RESET:
3191
3192                 /*
3193                  * We are going to have the fc class block the rport
3194                  * while we try to recover so instruct the mid layer
3195                  * to requeue until the class decides how to handle this.
3196                  */
3197                 res = DID_TRANSPORT_DISRUPTED << 16;
3198
3199                 if (comp_status == CS_TIMEOUT) {
3200                         if (IS_FWI2_CAPABLE(ha))
3201                                 break;
3202                         else if ((le16_to_cpu(sts->status_flags) &
3203                             SF_LOGOUT_SENT) == 0)
3204                                 break;
3205                 }
3206
3207                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
3208                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
3209                                 "Port to be marked lost on fcport=%02x%02x%02x, current "
3210                                 "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
3211                                 fcport->d_id.b.area, fcport->d_id.b.al_pa,
3212                                 port_state_str[FCS_ONLINE],
3213                                 comp_status);
3214
3215                         qlt_schedule_sess_for_deletion(fcport);
3216                 }
3217
3218                 break;
3219
3220         case CS_ABORTED:
3221                 res = DID_RESET << 16;
3222                 break;
3223
3224         case CS_DIF_ERROR:
3225                 logit = qla2x00_handle_dif_error(sp, sts24);
3226                 res = cp->result;
3227                 break;
3228
3229         case CS_TRANSPORT:
3230                 res = DID_ERROR << 16;
3231                 vha->hw_err_cnt++;
3232
3233                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
3234                         break;
3235
3236                 if (state_flags & BIT_4)
3237                         scmd_printk(KERN_WARNING, cp,
3238                             "Unsupported device '%s' found.\n",
3239                             cp->device->vendor);
3240                 break;
3241
3242         case CS_DMA:
3243                 ql_log(ql_log_info, fcport->vha, 0x3022,
3244                     "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",
3245                     comp_status, scsi_status, res, vha->host_no,
3246                     cp->device->id, cp->device->lun, fcport->d_id.b24,
3247                     ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3248                     resid_len, fw_resid_len, sp, cp);
3249                 ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
3250                     pkt, sizeof(*sts24));
3251                 res = DID_ERROR << 16;
3252                 vha->hw_err_cnt++;
3253                 break;
3254         default:
3255                 res = DID_ERROR << 16;
3256                 break;
3257         }
3258
3259 out:
3260         if (logit)
3261                 ql_log(ql_log_warn, fcport->vha, 0x3022,
3262                        "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3263                        comp_status, scsi_status, res, vha->host_no,
3264                        cp->device->id, cp->device->lun, fcport->d_id.b.domain,
3265                        fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
3266                        cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3267                        resid_len, fw_resid_len, sp, cp);
3268
3269         if (rsp->status_srb == NULL)
3270                 sp->done(sp, res);
3271 }
3272
3273 /**
3274  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
3275  * @rsp: response queue
3276  * @pkt: Entry pointer
3277  *
3278  * Extended sense data.
3279  */
3280 static void
3281 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
3282 {
3283         uint8_t sense_sz = 0;
3284         struct qla_hw_data *ha = rsp->hw;
3285         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
3286         srb_t *sp = rsp->status_srb;
3287         struct scsi_cmnd *cp;
3288         uint32_t sense_len;
3289         uint8_t *sense_ptr;
3290
3291         if (!sp || !GET_CMD_SENSE_LEN(sp))
3292                 return;
3293
3294         sense_len = GET_CMD_SENSE_LEN(sp);
3295         sense_ptr = GET_CMD_SENSE_PTR(sp);
3296
3297         cp = GET_CMD_SP(sp);
3298         if (cp == NULL) {
3299                 ql_log(ql_log_warn, vha, 0x3025,
3300                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
3301
3302                 rsp->status_srb = NULL;
3303                 return;
3304         }
3305
3306         if (sense_len > sizeof(pkt->data))
3307                 sense_sz = sizeof(pkt->data);
3308         else
3309                 sense_sz = sense_len;
3310
3311         /* Move sense data. */
3312         if (IS_FWI2_CAPABLE(ha))
3313                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
3314         memcpy(sense_ptr, pkt->data, sense_sz);
3315         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
3316                 sense_ptr, sense_sz);
3317
3318         sense_len -= sense_sz;
3319         sense_ptr += sense_sz;
3320
3321         SET_CMD_SENSE_PTR(sp, sense_ptr);
3322         SET_CMD_SENSE_LEN(sp, sense_len);
3323
3324         /* Place command on done queue. */
3325         if (sense_len == 0) {
3326                 rsp->status_srb = NULL;
3327                 sp->done(sp, cp->result);
3328         }
3329 }
3330
3331 /**
3332  * qla2x00_error_entry() - Process an error entry.
3333  * @vha: SCSI driver HA context
3334  * @rsp: response queue
3335  * @pkt: Entry pointer
3336  * return : 1=allow further error analysis. 0=no additional error analysis.
3337  */
3338 static int
3339 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
3340 {
3341         srb_t *sp;
3342         struct qla_hw_data *ha = vha->hw;
3343         const char func[] = "ERROR-IOCB";
3344         uint16_t que = MSW(pkt->handle);
3345         struct req_que *req = NULL;
3346         int res = DID_ERROR << 16;
3347
3348         ql_dbg(ql_dbg_async, vha, 0x502a,
3349             "iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
3350             pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
3351
3352         if (que >= ha->max_req_queues || !ha->req_q_map[que])
3353                 goto fatal;
3354
3355         req = ha->req_q_map[que];
3356
3357         if (pkt->entry_status & RF_BUSY)
3358                 res = DID_BUS_BUSY << 16;
3359
3360         if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
3361                 return 0;
3362
3363         switch (pkt->entry_type) {
3364         case NOTIFY_ACK_TYPE:
3365         case STATUS_TYPE:
3366         case STATUS_CONT_TYPE:
3367         case LOGINOUT_PORT_IOCB_TYPE:
3368         case CT_IOCB_TYPE:
3369         case ELS_IOCB_TYPE:
3370         case ABORT_IOCB_TYPE:
3371         case MBX_IOCB_TYPE:
3372         default:
3373                 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3374                 if (sp) {
3375                         qla_put_iocbs(sp->qpair, &sp->iores);
3376                         sp->done(sp, res);
3377                         return 0;
3378                 }
3379                 break;
3380
3381         case ABTS_RESP_24XX:
3382         case CTIO_TYPE7:
3383         case CTIO_CRC2:
3384                 return 1;
3385         }
3386 fatal:
3387         ql_log(ql_log_warn, vha, 0x5030,
3388             "Error entry - invalid handle/queue (%04x).\n", que);
3389         return 0;
3390 }
3391
3392 /**
3393  * qla24xx_mbx_completion() - Process mailbox command completions.
3394  * @vha: SCSI driver HA context
3395  * @mb0: Mailbox0 register
3396  */
3397 static void
3398 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
3399 {
3400         uint16_t        cnt;
3401         uint32_t        mboxes;
3402         __le16 __iomem *wptr;
3403         struct qla_hw_data *ha = vha->hw;
3404         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3405
3406         /* Read all mbox registers? */
3407         WARN_ON_ONCE(ha->mbx_count > 32);
3408         mboxes = (1ULL << ha->mbx_count) - 1;
3409         if (!ha->mcp)
3410                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
3411         else
3412                 mboxes = ha->mcp->in_mb;
3413
3414         /* Load return mailbox registers. */
3415         ha->flags.mbox_int = 1;
3416         ha->mailbox_out[0] = mb0;
3417         mboxes >>= 1;
3418         wptr = &reg->mailbox1;
3419
3420         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
3421                 if (mboxes & BIT_0)
3422                         ha->mailbox_out[cnt] = rd_reg_word(wptr);
3423
3424                 mboxes >>= 1;
3425                 wptr++;
3426         }
3427 }
3428
3429 static void
3430 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
3431         struct abort_entry_24xx *pkt)
3432 {
3433         const char func[] = "ABT_IOCB";
3434         srb_t *sp;
3435         srb_t *orig_sp = NULL;
3436         struct srb_iocb *abt;
3437
3438         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3439         if (!sp)
3440                 return;
3441
3442         abt = &sp->u.iocb_cmd;
3443         abt->u.abt.comp_status = le16_to_cpu(pkt->comp_status);
3444         orig_sp = sp->cmd_sp;
3445         /* Need to pass original sp */
3446         if (orig_sp)
3447                 qla_nvme_abort_process_comp_status(pkt, orig_sp);
3448
3449         sp->done(sp, 0);
3450 }
3451
3452 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
3453     struct pt_ls4_request *pkt, struct req_que *req)
3454 {
3455         srb_t *sp;
3456         const char func[] = "LS4_IOCB";
3457         uint16_t comp_status;
3458
3459         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3460         if (!sp)
3461                 return;
3462
3463         comp_status = le16_to_cpu(pkt->status);
3464         sp->done(sp, comp_status);
3465 }
3466
3467 /**
3468  * qla24xx_process_response_queue() - Process response queue entries.
3469  * @vha: SCSI driver HA context
3470  * @rsp: response queue
3471  */
3472 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
3473         struct rsp_que *rsp)
3474 {
3475         struct sts_entry_24xx *pkt;
3476         struct qla_hw_data *ha = vha->hw;
3477         struct purex_entry_24xx *purex_entry;
3478         struct purex_item *pure_item;
3479
3480         if (!ha->flags.fw_started)
3481                 return;
3482
3483         if (rsp->qpair->cpuid != smp_processor_id() || !rsp->qpair->rcv_intr) {
3484                 rsp->qpair->rcv_intr = 1;
3485                 qla_cpu_update(rsp->qpair, smp_processor_id());
3486         }
3487
3488         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
3489                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
3490
3491                 rsp->ring_index++;
3492                 if (rsp->ring_index == rsp->length) {
3493                         rsp->ring_index = 0;
3494                         rsp->ring_ptr = rsp->ring;
3495                 } else {
3496                         rsp->ring_ptr++;
3497                 }
3498
3499                 if (pkt->entry_status != 0) {
3500                         if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
3501                                 goto process_err;
3502
3503                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3504                         wmb();
3505                         continue;
3506                 }
3507 process_err:
3508
3509                 switch (pkt->entry_type) {
3510                 case STATUS_TYPE:
3511                         qla2x00_status_entry(vha, rsp, pkt);
3512                         break;
3513                 case STATUS_CONT_TYPE:
3514                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
3515                         break;
3516                 case VP_RPT_ID_IOCB_TYPE:
3517                         qla24xx_report_id_acquisition(vha,
3518                             (struct vp_rpt_id_entry_24xx *)pkt);
3519                         break;
3520                 case LOGINOUT_PORT_IOCB_TYPE:
3521                         qla24xx_logio_entry(vha, rsp->req,
3522                             (struct logio_entry_24xx *)pkt);
3523                         break;
3524                 case CT_IOCB_TYPE:
3525                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
3526                         break;
3527                 case ELS_IOCB_TYPE:
3528                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
3529                         break;
3530                 case ABTS_RECV_24XX:
3531                         if (qla_ini_mode_enabled(vha)) {
3532                                 pure_item = qla24xx_copy_std_pkt(vha, pkt);
3533                                 if (!pure_item)
3534                                         break;
3535                                 qla24xx_queue_purex_item(vha, pure_item,
3536                                                          qla24xx_process_abts);
3537                                 break;
3538                         }
3539                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3540                             IS_QLA28XX(ha)) {
3541                                 /* ensure that the ATIO queue is empty */
3542                                 qlt_handle_abts_recv(vha, rsp,
3543                                     (response_t *)pkt);
3544                                 break;
3545                         } else {
3546                                 qlt_24xx_process_atio_queue(vha, 1);
3547                         }
3548                         fallthrough;
3549                 case ABTS_RESP_24XX:
3550                 case CTIO_TYPE7:
3551                 case CTIO_CRC2:
3552                         qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
3553                         break;
3554                 case PT_LS4_REQUEST:
3555                         qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
3556                             rsp->req);
3557                         break;
3558                 case NOTIFY_ACK_TYPE:
3559                         if (pkt->handle == QLA_TGT_SKIP_HANDLE)
3560                                 qlt_response_pkt_all_vps(vha, rsp,
3561                                     (response_t *)pkt);
3562                         else
3563                                 qla24xxx_nack_iocb_entry(vha, rsp->req,
3564                                         (struct nack_to_isp *)pkt);
3565                         break;
3566                 case MARKER_TYPE:
3567                         /* Do nothing in this case, this check is to prevent it
3568                          * from falling into default case
3569                          */
3570                         break;
3571                 case ABORT_IOCB_TYPE:
3572                         qla24xx_abort_iocb_entry(vha, rsp->req,
3573                             (struct abort_entry_24xx *)pkt);
3574                         break;
3575                 case MBX_IOCB_TYPE:
3576                         qla24xx_mbx_iocb_entry(vha, rsp->req,
3577                             (struct mbx_24xx_entry *)pkt);
3578                         break;
3579                 case VP_CTRL_IOCB_TYPE:
3580                         qla_ctrlvp_completed(vha, rsp->req,
3581                             (struct vp_ctrl_entry_24xx *)pkt);
3582                         break;
3583                 case PUREX_IOCB_TYPE:
3584                         purex_entry = (void *)pkt;
3585                         switch (purex_entry->els_frame_payload[3]) {
3586                         case ELS_RDP:
3587                                 pure_item = qla24xx_copy_std_pkt(vha, pkt);
3588                                 if (!pure_item)
3589                                         break;
3590                                 qla24xx_queue_purex_item(vha, pure_item,
3591                                                  qla24xx_process_purex_rdp);
3592                                 break;
3593                         case ELS_FPIN:
3594                                 if (!vha->hw->flags.scm_enabled) {
3595                                         ql_log(ql_log_warn, vha, 0x5094,
3596                                                "SCM not active for this port\n");
3597                                         break;
3598                                 }
3599                                 pure_item = qla27xx_copy_fpin_pkt(vha,
3600                                                           (void **)&pkt, &rsp);
3601                                 if (!pure_item)
3602                                         break;
3603                                 qla24xx_queue_purex_item(vha, pure_item,
3604                                                  qla27xx_process_purex_fpin);
3605                                 break;
3606
3607                         default:
3608                                 ql_log(ql_log_warn, vha, 0x509c,
3609                                        "Discarding ELS Request opcode 0x%x\n",
3610                                        purex_entry->els_frame_payload[3]);
3611                         }
3612                         break;
3613                 default:
3614                         /* Type Not Supported. */
3615                         ql_dbg(ql_dbg_async, vha, 0x5042,
3616                                "Received unknown response pkt type 0x%x entry status=%x.\n",
3617                                pkt->entry_type, pkt->entry_status);
3618                         break;
3619                 }
3620                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3621                 wmb();
3622         }
3623
3624         /* Adjust ring index */
3625         if (IS_P3P_TYPE(ha)) {
3626                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
3627
3628                 wrt_reg_dword(&reg->rsp_q_out[0], rsp->ring_index);
3629         } else {
3630                 wrt_reg_dword(rsp->rsp_q_out, rsp->ring_index);
3631         }
3632 }
3633
3634 static void
3635 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
3636 {
3637         int rval;
3638         uint32_t cnt;
3639         struct qla_hw_data *ha = vha->hw;
3640         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3641
3642         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3643             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3644                 return;
3645
3646         rval = QLA_SUCCESS;
3647         wrt_reg_dword(&reg->iobase_addr, 0x7C00);
3648         rd_reg_dword(&reg->iobase_addr);
3649         wrt_reg_dword(&reg->iobase_window, 0x0001);
3650         for (cnt = 10000; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3651             rval == QLA_SUCCESS; cnt--) {
3652                 if (cnt) {
3653                         wrt_reg_dword(&reg->iobase_window, 0x0001);
3654                         udelay(10);
3655                 } else
3656                         rval = QLA_FUNCTION_TIMEOUT;
3657         }
3658         if (rval == QLA_SUCCESS)
3659                 goto next_test;
3660
3661         rval = QLA_SUCCESS;
3662         wrt_reg_dword(&reg->iobase_window, 0x0003);
3663         for (cnt = 100; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3664             rval == QLA_SUCCESS; cnt--) {
3665                 if (cnt) {
3666                         wrt_reg_dword(&reg->iobase_window, 0x0003);
3667                         udelay(10);
3668                 } else
3669                         rval = QLA_FUNCTION_TIMEOUT;
3670         }
3671         if (rval != QLA_SUCCESS)
3672                 goto done;
3673
3674 next_test:
3675         if (rd_reg_dword(&reg->iobase_c8) & BIT_3)
3676                 ql_log(ql_log_info, vha, 0x504c,
3677                     "Additional code -- 0x55AA.\n");
3678
3679 done:
3680         wrt_reg_dword(&reg->iobase_window, 0x0000);
3681         rd_reg_dword(&reg->iobase_window);
3682 }
3683
3684 /**
3685  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
3686  * @irq: interrupt number
3687  * @dev_id: SCSI driver HA context
3688  *
3689  * Called by system whenever the host adapter generates an interrupt.
3690  *
3691  * Returns handled flag.
3692  */
3693 irqreturn_t
3694 qla24xx_intr_handler(int irq, void *dev_id)
3695 {
3696         scsi_qla_host_t *vha;
3697         struct qla_hw_data *ha;
3698         struct device_reg_24xx __iomem *reg;
3699         int             status;
3700         unsigned long   iter;
3701         uint32_t        stat;
3702         uint32_t        hccr;
3703         uint16_t        mb[8];
3704         struct rsp_que *rsp;
3705         unsigned long   flags;
3706         bool process_atio = false;
3707
3708         rsp = (struct rsp_que *) dev_id;
3709         if (!rsp) {
3710                 ql_log(ql_log_info, NULL, 0x5059,
3711                     "%s: NULL response queue pointer.\n", __func__);
3712                 return IRQ_NONE;
3713         }
3714
3715         ha = rsp->hw;
3716         reg = &ha->iobase->isp24;
3717         status = 0;
3718
3719         if (unlikely(pci_channel_offline(ha->pdev)))
3720                 return IRQ_HANDLED;
3721
3722         spin_lock_irqsave(&ha->hardware_lock, flags);
3723         vha = pci_get_drvdata(ha->pdev);
3724         for (iter = 50; iter--; ) {
3725                 stat = rd_reg_dword(&reg->host_status);
3726                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3727                         break;
3728                 if (stat & HSRX_RISC_PAUSED) {
3729                         if (unlikely(pci_channel_offline(ha->pdev)))
3730                                 break;
3731
3732                         hccr = rd_reg_dword(&reg->hccr);
3733
3734                         ql_log(ql_log_warn, vha, 0x504b,
3735                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3736                             hccr);
3737
3738                         qla2xxx_check_risc_status(vha);
3739
3740                         ha->isp_ops->fw_dump(vha);
3741                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3742                         break;
3743                 } else if ((stat & HSRX_RISC_INT) == 0)
3744                         break;
3745
3746                 switch (stat & 0xff) {
3747                 case INTR_ROM_MB_SUCCESS:
3748                 case INTR_ROM_MB_FAILED:
3749                 case INTR_MB_SUCCESS:
3750                 case INTR_MB_FAILED:
3751                         qla24xx_mbx_completion(vha, MSW(stat));
3752                         status |= MBX_INTERRUPT;
3753
3754                         break;
3755                 case INTR_ASYNC_EVENT:
3756                         mb[0] = MSW(stat);
3757                         mb[1] = rd_reg_word(&reg->mailbox1);
3758                         mb[2] = rd_reg_word(&reg->mailbox2);
3759                         mb[3] = rd_reg_word(&reg->mailbox3);
3760                         qla2x00_async_event(vha, rsp, mb);
3761                         break;
3762                 case INTR_RSP_QUE_UPDATE:
3763                 case INTR_RSP_QUE_UPDATE_83XX:
3764                         qla24xx_process_response_queue(vha, rsp);
3765                         break;
3766                 case INTR_ATIO_QUE_UPDATE_27XX:
3767                 case INTR_ATIO_QUE_UPDATE:
3768                         process_atio = true;
3769                         break;
3770                 case INTR_ATIO_RSP_QUE_UPDATE:
3771                         process_atio = true;
3772                         qla24xx_process_response_queue(vha, rsp);
3773                         break;
3774                 default:
3775                         ql_dbg(ql_dbg_async, vha, 0x504f,
3776                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
3777                         break;
3778                 }
3779                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3780                 rd_reg_dword_relaxed(&reg->hccr);
3781                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
3782                         ndelay(3500);
3783         }
3784         qla2x00_handle_mbx_completion(ha, status);
3785         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3786
3787         if (process_atio) {
3788                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3789                 qlt_24xx_process_atio_queue(vha, 0);
3790                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3791         }
3792
3793         return IRQ_HANDLED;
3794 }
3795
3796 static irqreturn_t
3797 qla24xx_msix_rsp_q(int irq, void *dev_id)
3798 {
3799         struct qla_hw_data *ha;
3800         struct rsp_que *rsp;
3801         struct device_reg_24xx __iomem *reg;
3802         struct scsi_qla_host *vha;
3803         unsigned long flags;
3804
3805         rsp = (struct rsp_que *) dev_id;
3806         if (!rsp) {
3807                 ql_log(ql_log_info, NULL, 0x505a,
3808                     "%s: NULL response queue pointer.\n", __func__);
3809                 return IRQ_NONE;
3810         }
3811         ha = rsp->hw;
3812         reg = &ha->iobase->isp24;
3813
3814         spin_lock_irqsave(&ha->hardware_lock, flags);
3815
3816         vha = pci_get_drvdata(ha->pdev);
3817         qla24xx_process_response_queue(vha, rsp);
3818         if (!ha->flags.disable_msix_handshake) {
3819                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3820                 rd_reg_dword_relaxed(&reg->hccr);
3821         }
3822         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3823
3824         return IRQ_HANDLED;
3825 }
3826
3827 static irqreturn_t
3828 qla24xx_msix_default(int irq, void *dev_id)
3829 {
3830         scsi_qla_host_t *vha;
3831         struct qla_hw_data *ha;
3832         struct rsp_que *rsp;
3833         struct device_reg_24xx __iomem *reg;
3834         int             status;
3835         uint32_t        stat;
3836         uint32_t        hccr;
3837         uint16_t        mb[8];
3838         unsigned long flags;
3839         bool process_atio = false;
3840
3841         rsp = (struct rsp_que *) dev_id;
3842         if (!rsp) {
3843                 ql_log(ql_log_info, NULL, 0x505c,
3844                     "%s: NULL response queue pointer.\n", __func__);
3845                 return IRQ_NONE;
3846         }
3847         ha = rsp->hw;
3848         reg = &ha->iobase->isp24;
3849         status = 0;
3850
3851         spin_lock_irqsave(&ha->hardware_lock, flags);
3852         vha = pci_get_drvdata(ha->pdev);
3853         do {
3854                 stat = rd_reg_dword(&reg->host_status);
3855                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3856                         break;
3857                 if (stat & HSRX_RISC_PAUSED) {
3858                         if (unlikely(pci_channel_offline(ha->pdev)))
3859                                 break;
3860
3861                         hccr = rd_reg_dword(&reg->hccr);
3862
3863                         ql_log(ql_log_info, vha, 0x5050,
3864                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3865                             hccr);
3866
3867                         qla2xxx_check_risc_status(vha);
3868                         vha->hw_err_cnt++;
3869
3870                         ha->isp_ops->fw_dump(vha);
3871                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3872                         break;
3873                 } else if ((stat & HSRX_RISC_INT) == 0)
3874                         break;
3875
3876                 switch (stat & 0xff) {
3877                 case INTR_ROM_MB_SUCCESS:
3878                 case INTR_ROM_MB_FAILED:
3879                 case INTR_MB_SUCCESS:
3880                 case INTR_MB_FAILED:
3881                         qla24xx_mbx_completion(vha, MSW(stat));
3882                         status |= MBX_INTERRUPT;
3883
3884                         break;
3885                 case INTR_ASYNC_EVENT:
3886                         mb[0] = MSW(stat);
3887                         mb[1] = rd_reg_word(&reg->mailbox1);
3888                         mb[2] = rd_reg_word(&reg->mailbox2);
3889                         mb[3] = rd_reg_word(&reg->mailbox3);
3890                         qla2x00_async_event(vha, rsp, mb);
3891                         break;
3892                 case INTR_RSP_QUE_UPDATE:
3893                 case INTR_RSP_QUE_UPDATE_83XX:
3894                         qla24xx_process_response_queue(vha, rsp);
3895                         break;
3896                 case INTR_ATIO_QUE_UPDATE_27XX:
3897                 case INTR_ATIO_QUE_UPDATE:
3898                         process_atio = true;
3899                         break;
3900                 case INTR_ATIO_RSP_QUE_UPDATE:
3901                         process_atio = true;
3902                         qla24xx_process_response_queue(vha, rsp);
3903                         break;
3904                 default:
3905                         ql_dbg(ql_dbg_async, vha, 0x5051,
3906                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
3907                         break;
3908                 }
3909                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3910         } while (0);
3911         qla2x00_handle_mbx_completion(ha, status);
3912         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3913
3914         if (process_atio) {
3915                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3916                 qlt_24xx_process_atio_queue(vha, 0);
3917                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3918         }
3919
3920         return IRQ_HANDLED;
3921 }
3922
3923 irqreturn_t
3924 qla2xxx_msix_rsp_q(int irq, void *dev_id)
3925 {
3926         struct qla_hw_data *ha;
3927         struct qla_qpair *qpair;
3928
3929         qpair = dev_id;
3930         if (!qpair) {
3931                 ql_log(ql_log_info, NULL, 0x505b,
3932                     "%s: NULL response queue pointer.\n", __func__);
3933                 return IRQ_NONE;
3934         }
3935         ha = qpair->hw;
3936
3937         queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
3938
3939         return IRQ_HANDLED;
3940 }
3941
3942 irqreturn_t
3943 qla2xxx_msix_rsp_q_hs(int irq, void *dev_id)
3944 {
3945         struct qla_hw_data *ha;
3946         struct qla_qpair *qpair;
3947         struct device_reg_24xx __iomem *reg;
3948         unsigned long flags;
3949
3950         qpair = dev_id;
3951         if (!qpair) {
3952                 ql_log(ql_log_info, NULL, 0x505b,
3953                     "%s: NULL response queue pointer.\n", __func__);
3954                 return IRQ_NONE;
3955         }
3956         ha = qpair->hw;
3957
3958         reg = &ha->iobase->isp24;
3959         spin_lock_irqsave(&ha->hardware_lock, flags);
3960         wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3961         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3962
3963         queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
3964
3965         return IRQ_HANDLED;
3966 }
3967
3968 /* Interrupt handling helpers. */
3969
3970 struct qla_init_msix_entry {
3971         const char *name;
3972         irq_handler_t handler;
3973 };
3974
3975 static const struct qla_init_msix_entry msix_entries[] = {
3976         { "default", qla24xx_msix_default },
3977         { "rsp_q", qla24xx_msix_rsp_q },
3978         { "atio_q", qla83xx_msix_atio_q },
3979         { "qpair_multiq", qla2xxx_msix_rsp_q },
3980         { "qpair_multiq_hs", qla2xxx_msix_rsp_q_hs },
3981 };
3982
3983 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
3984         { "qla2xxx (default)", qla82xx_msix_default },
3985         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3986 };
3987
3988 static int
3989 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3990 {
3991         int i, ret;
3992         struct qla_msix_entry *qentry;
3993         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3994         int min_vecs = QLA_BASE_VECTORS;
3995         struct irq_affinity desc = {
3996                 .pre_vectors = QLA_BASE_VECTORS,
3997         };
3998
3999         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
4000             IS_ATIO_MSIX_CAPABLE(ha)) {
4001                 desc.pre_vectors++;
4002                 min_vecs++;
4003         }
4004
4005         if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
4006                 /* user wants to control IRQ setting for target mode */
4007                 ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
4008                     min((u16)ha->msix_count, (u16)num_online_cpus()),
4009                     PCI_IRQ_MSIX);
4010         } else
4011                 ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
4012                     min((u16)ha->msix_count, (u16)num_online_cpus()),
4013                     PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
4014                     &desc);
4015
4016         if (ret < 0) {
4017                 ql_log(ql_log_fatal, vha, 0x00c7,
4018                     "MSI-X: Failed to enable support, "
4019                     "giving   up -- %d/%d.\n",
4020                     ha->msix_count, ret);
4021                 goto msix_out;
4022         } else if (ret < ha->msix_count) {
4023                 ql_log(ql_log_info, vha, 0x00c6,
4024                     "MSI-X: Using %d vectors\n", ret);
4025                 ha->msix_count = ret;
4026                 /* Recalculate queue values */
4027                 if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
4028                         ha->max_req_queues = ha->msix_count - 1;
4029
4030                         /* ATIOQ needs 1 vector. That's 1 less QPair */
4031                         if (QLA_TGT_MODE_ENABLED())
4032                                 ha->max_req_queues--;
4033
4034                         ha->max_rsp_queues = ha->max_req_queues;
4035
4036                         ha->max_qpairs = ha->max_req_queues - 1;
4037                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
4038                             "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
4039                 }
4040         }
4041         vha->irq_offset = desc.pre_vectors;
4042         ha->msix_entries = kcalloc(ha->msix_count,
4043                                    sizeof(struct qla_msix_entry),
4044                                    GFP_KERNEL);
4045         if (!ha->msix_entries) {
4046                 ql_log(ql_log_fatal, vha, 0x00c8,
4047                     "Failed to allocate memory for ha->msix_entries.\n");
4048                 ret = -ENOMEM;
4049                 goto free_irqs;
4050         }
4051         ha->flags.msix_enabled = 1;
4052
4053         for (i = 0; i < ha->msix_count; i++) {
4054                 qentry = &ha->msix_entries[i];
4055                 qentry->vector = pci_irq_vector(ha->pdev, i);
4056                 qentry->entry = i;
4057                 qentry->have_irq = 0;
4058                 qentry->in_use = 0;
4059                 qentry->handle = NULL;
4060         }
4061
4062         /* Enable MSI-X vectors for the base queue */
4063         for (i = 0; i < QLA_BASE_VECTORS; i++) {
4064                 qentry = &ha->msix_entries[i];
4065                 qentry->handle = rsp;
4066                 rsp->msix = qentry;
4067                 scnprintf(qentry->name, sizeof(qentry->name),
4068                     "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
4069                 if (IS_P3P_TYPE(ha))
4070                         ret = request_irq(qentry->vector,
4071                                 qla82xx_msix_entries[i].handler,
4072                                 0, qla82xx_msix_entries[i].name, rsp);
4073                 else
4074                         ret = request_irq(qentry->vector,
4075                                 msix_entries[i].handler,
4076                                 0, qentry->name, rsp);
4077                 if (ret)
4078                         goto msix_register_fail;
4079                 qentry->have_irq = 1;
4080                 qentry->in_use = 1;
4081         }
4082
4083         /*
4084          * If target mode is enable, also request the vector for the ATIO
4085          * queue.
4086          */
4087         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
4088             IS_ATIO_MSIX_CAPABLE(ha)) {
4089                 qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
4090                 rsp->msix = qentry;
4091                 qentry->handle = rsp;
4092                 scnprintf(qentry->name, sizeof(qentry->name),
4093                     "qla2xxx%lu_%s", vha->host_no,
4094                     msix_entries[QLA_ATIO_VECTOR].name);
4095                 qentry->in_use = 1;
4096                 ret = request_irq(qentry->vector,
4097                         msix_entries[QLA_ATIO_VECTOR].handler,
4098                         0, qentry->name, rsp);
4099                 qentry->have_irq = 1;
4100         }
4101
4102 msix_register_fail:
4103         if (ret) {
4104                 ql_log(ql_log_fatal, vha, 0x00cb,
4105                     "MSI-X: unable to register handler -- %x/%d.\n",
4106                     qentry->vector, ret);
4107                 qla2x00_free_irqs(vha);
4108                 ha->mqenable = 0;
4109                 goto msix_out;
4110         }
4111
4112         /* Enable MSI-X vector for response queue update for queue 0 */
4113         if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
4114                 if (ha->msixbase && ha->mqiobase &&
4115                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
4116                      ql2xmqsupport))
4117                         ha->mqenable = 1;
4118         } else
4119                 if (ha->mqiobase &&
4120                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
4121                      ql2xmqsupport))
4122                         ha->mqenable = 1;
4123         ql_dbg(ql_dbg_multiq, vha, 0xc005,
4124             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4125             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4126         ql_dbg(ql_dbg_init, vha, 0x0055,
4127             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4128             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4129
4130 msix_out:
4131         return ret;
4132
4133 free_irqs:
4134         pci_free_irq_vectors(ha->pdev);
4135         goto msix_out;
4136 }
4137
4138 int
4139 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
4140 {
4141         int ret = QLA_FUNCTION_FAILED;
4142         device_reg_t *reg = ha->iobase;
4143         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4144
4145         /* If possible, enable MSI-X. */
4146         if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
4147             !IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
4148             !IS_QLAFX00(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha)))
4149                 goto skip_msi;
4150
4151         if (ql2xenablemsix == 2)
4152                 goto skip_msix;
4153
4154         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
4155                 (ha->pdev->subsystem_device == 0x7040 ||
4156                 ha->pdev->subsystem_device == 0x7041 ||
4157                 ha->pdev->subsystem_device == 0x1705)) {
4158                 ql_log(ql_log_warn, vha, 0x0034,
4159                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
4160                         ha->pdev->subsystem_vendor,
4161                         ha->pdev->subsystem_device);
4162                 goto skip_msi;
4163         }
4164
4165         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
4166                 ql_log(ql_log_warn, vha, 0x0035,
4167                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
4168                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
4169                 goto skip_msix;
4170         }
4171
4172         ret = qla24xx_enable_msix(ha, rsp);
4173         if (!ret) {
4174                 ql_dbg(ql_dbg_init, vha, 0x0036,
4175                     "MSI-X: Enabled (0x%X, 0x%X).\n",
4176                     ha->chip_revision, ha->fw_attributes);
4177                 goto clear_risc_ints;
4178         }
4179
4180 skip_msix:
4181
4182         ql_log(ql_log_info, vha, 0x0037,
4183             "Falling back-to MSI mode -- ret=%d.\n", ret);
4184
4185         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
4186             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
4187             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
4188                 goto skip_msi;
4189
4190         ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
4191         if (ret > 0) {
4192                 ql_dbg(ql_dbg_init, vha, 0x0038,
4193                     "MSI: Enabled.\n");
4194                 ha->flags.msi_enabled = 1;
4195         } else
4196                 ql_log(ql_log_warn, vha, 0x0039,
4197                     "Falling back-to INTa mode -- ret=%d.\n", ret);
4198 skip_msi:
4199
4200         /* Skip INTx on ISP82xx. */
4201         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
4202                 return QLA_FUNCTION_FAILED;
4203
4204         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
4205             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
4206             QLA2XXX_DRIVER_NAME, rsp);
4207         if (ret) {
4208                 ql_log(ql_log_warn, vha, 0x003a,
4209                     "Failed to reserve interrupt %d already in use.\n",
4210                     ha->pdev->irq);
4211                 goto fail;
4212         } else if (!ha->flags.msi_enabled) {
4213                 ql_dbg(ql_dbg_init, vha, 0x0125,
4214                     "INTa mode: Enabled.\n");
4215                 ha->flags.mr_intr_valid = 1;
4216         }
4217
4218 clear_risc_ints:
4219         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
4220                 goto fail;
4221
4222         spin_lock_irq(&ha->hardware_lock);
4223         wrt_reg_word(&reg->isp.semaphore, 0);
4224         spin_unlock_irq(&ha->hardware_lock);
4225
4226 fail:
4227         return ret;
4228 }
4229
4230 void
4231 qla2x00_free_irqs(scsi_qla_host_t *vha)
4232 {
4233         struct qla_hw_data *ha = vha->hw;
4234         struct rsp_que *rsp;
4235         struct qla_msix_entry *qentry;
4236         int i;
4237
4238         /*
4239          * We need to check that ha->rsp_q_map is valid in case we are called
4240          * from a probe failure context.
4241          */
4242         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
4243                 goto free_irqs;
4244         rsp = ha->rsp_q_map[0];
4245
4246         if (ha->flags.msix_enabled) {
4247                 for (i = 0; i < ha->msix_count; i++) {
4248                         qentry = &ha->msix_entries[i];
4249                         if (qentry->have_irq) {
4250                                 irq_set_affinity_notifier(qentry->vector, NULL);
4251                                 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
4252                         }
4253                 }
4254                 kfree(ha->msix_entries);
4255                 ha->msix_entries = NULL;
4256                 ha->flags.msix_enabled = 0;
4257                 ql_dbg(ql_dbg_init, vha, 0x0042,
4258                         "Disabled MSI-X.\n");
4259         } else {
4260                 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
4261         }
4262
4263 free_irqs:
4264         pci_free_irq_vectors(ha->pdev);
4265 }
4266
4267 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
4268         struct qla_msix_entry *msix, int vector_type)
4269 {
4270         const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
4271         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4272         int ret;
4273
4274         scnprintf(msix->name, sizeof(msix->name),
4275             "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
4276         ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
4277         if (ret) {
4278                 ql_log(ql_log_fatal, vha, 0x00e6,
4279                     "MSI-X: Unable to register handler -- %x/%d.\n",
4280                     msix->vector, ret);
4281                 return ret;
4282         }
4283         msix->have_irq = 1;
4284         msix->handle = qpair;
4285         return ret;
4286 }