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