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
   9 #include <linux/delay.h>
  10 #include <linux/slab.h>
  11 #include <linux/cpu.h>
  12 #include <linux/t10-pi.h>
  13 #include <scsi/scsi_tcq.h>
  14 #include <scsi/scsi_bsg_fc.h>
  15 #include <scsi/scsi_eh.h>
  16 #include <scsi/fc/fc_fs.h>
  17 #include <linux/nvme-fc-driver.h>
  18
  19 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
  20 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
  21 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
  22 static int qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
  23         sts_entry_t *);
  24 static void qla27xx_process_purex_fpin(struct scsi_qla_host *vha,
  25         struct purex_item *item);
  26 static struct purex_item *qla24xx_alloc_purex_item(scsi_qla_host_t *vha,
  27         uint16_t size);
  28 static struct purex_item *qla24xx_copy_std_pkt(struct scsi_qla_host *vha,
  29         void *pkt);
  30 static struct purex_item *qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha,
  31         void **pkt, struct rsp_que **rsp);
  32
  33 static void
  34 qla27xx_process_purex_fpin(struct scsi_qla_host *vha, struct purex_item *item)
  35 {
  36         void *pkt = &item->iocb;
  37         uint16_t pkt_size = item->size;
  38
  39         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508d,
  40                "%s: Enter\n", __func__);
  41
  42         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508e,
  43                "-------- ELS REQ -------\n");
  44         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x508f,
  45                        pkt, pkt_size);
  46
  47         fc_host_fpin_rcv(vha->host, pkt_size, (char *)pkt);
  48 }
  49
  50 const char *const port_state_str[] = {
  51         "Unknown",
  52         "UNCONFIGURED",
  53         "DEAD",
  54         "LOST",
  55         "ONLINE"
  56 };
  57
  58 static void
  59 qla24xx_process_abts(struct scsi_qla_host *vha, struct purex_item *pkt)
  60 {
  61         struct abts_entry_24xx *abts =
  62             (struct abts_entry_24xx *)&pkt->iocb;
  63         struct qla_hw_data *ha = vha->hw;
  64         struct els_entry_24xx *rsp_els;
  65         struct abts_entry_24xx *abts_rsp;
  66         dma_addr_t dma;
  67         uint32_t fctl;
  68         int rval;
  69
  70         ql_dbg(ql_dbg_init, vha, 0x0286, "%s: entered.\n", __func__);
  71
  72         ql_log(ql_log_warn, vha, 0x0287,
  73             "Processing ABTS xchg=%#x oxid=%#x rxid=%#x seqid=%#x seqcnt=%#x\n",
  74             abts->rx_xch_addr_to_abort, abts->ox_id, abts->rx_id,
  75             abts->seq_id, abts->seq_cnt);
  76         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  77             "-------- ABTS RCV -------\n");
  78         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  79             (uint8_t *)abts, sizeof(*abts));
  80
  81         rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els), &dma,
  82             GFP_KERNEL);
  83         if (!rsp_els) {
  84                 ql_log(ql_log_warn, vha, 0x0287,
  85                     "Failed allocate dma buffer ABTS/ELS RSP.\n");
  86                 return;
  87         }
  88
  89         /* terminate exchange */
  90         rsp_els->entry_type = ELS_IOCB_TYPE;
  91         rsp_els->entry_count = 1;
  92         rsp_els->nport_handle = cpu_to_le16(~0);
  93         rsp_els->rx_xchg_address = abts->rx_xch_addr_to_abort;
  94         rsp_els->control_flags = cpu_to_le16(EPD_RX_XCHG);
  95         ql_dbg(ql_dbg_init, vha, 0x0283,
  96             "Sending ELS Response to terminate exchange %#x...\n",
  97             abts->rx_xch_addr_to_abort);
  98         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
  99             "-------- ELS RSP -------\n");
 100         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 101             (uint8_t *)rsp_els, sizeof(*rsp_els));
 102         rval = qla2x00_issue_iocb(vha, rsp_els, dma, 0);
 103         if (rval) {
 104                 ql_log(ql_log_warn, vha, 0x0288,
 105                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 106         } else if (rsp_els->comp_status) {
 107                 ql_log(ql_log_warn, vha, 0x0289,
 108                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 109                     __func__, rsp_els->comp_status,
 110                     rsp_els->error_subcode_1, rsp_els->error_subcode_2);
 111         } else {
 112                 ql_dbg(ql_dbg_init, vha, 0x028a,
 113                     "%s: abort exchange done.\n", __func__);
 114         }
 115
 116         /* send ABTS response */
 117         abts_rsp = (void *)rsp_els;
 118         memset(abts_rsp, 0, sizeof(*abts_rsp));
 119         abts_rsp->entry_type = ABTS_RSP_TYPE;
 120         abts_rsp->entry_count = 1;
 121         abts_rsp->nport_handle = abts->nport_handle;
 122         abts_rsp->vp_idx = abts->vp_idx;
 123         abts_rsp->sof_type = abts->sof_type & 0xf0;
 124         abts_rsp->rx_xch_addr = abts->rx_xch_addr;
 125         abts_rsp->d_id[0] = abts->s_id[0];
 126         abts_rsp->d_id[1] = abts->s_id[1];
 127         abts_rsp->d_id[2] = abts->s_id[2];
 128         abts_rsp->r_ctl = FC_ROUTING_BLD | FC_R_CTL_BLD_BA_ACC;
 129         abts_rsp->s_id[0] = abts->d_id[0];
 130         abts_rsp->s_id[1] = abts->d_id[1];
 131         abts_rsp->s_id[2] = abts->d_id[2];
 132         abts_rsp->cs_ctl = abts->cs_ctl;
 133         /* include flipping bit23 in fctl */
 134         fctl = ~(abts->f_ctl[2] | 0x7F) << 16 |
 135             FC_F_CTL_LAST_SEQ | FC_F_CTL_END_SEQ | FC_F_CTL_SEQ_INIT;
 136         abts_rsp->f_ctl[0] = fctl >> 0 & 0xff;
 137         abts_rsp->f_ctl[1] = fctl >> 8 & 0xff;
 138         abts_rsp->f_ctl[2] = fctl >> 16 & 0xff;
 139         abts_rsp->type = FC_TYPE_BLD;
 140         abts_rsp->rx_id = abts->rx_id;
 141         abts_rsp->ox_id = abts->ox_id;
 142         abts_rsp->payload.ba_acc.aborted_rx_id = abts->rx_id;
 143         abts_rsp->payload.ba_acc.aborted_ox_id = abts->ox_id;
 144         abts_rsp->payload.ba_acc.high_seq_cnt = cpu_to_le16(~0);
 145         abts_rsp->rx_xch_addr_to_abort = abts->rx_xch_addr_to_abort;
 146         ql_dbg(ql_dbg_init, vha, 0x028b,
 147             "Sending BA ACC response to ABTS %#x...\n",
 148             abts->rx_xch_addr_to_abort);
 149         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 150             "-------- ELS RSP -------\n");
 151         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 152             (uint8_t *)abts_rsp, sizeof(*abts_rsp));
 153         rval = qla2x00_issue_iocb(vha, abts_rsp, dma, 0);
 154         if (rval) {
 155                 ql_log(ql_log_warn, vha, 0x028c,
 156                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 157         } else if (abts_rsp->comp_status) {
 158                 ql_log(ql_log_warn, vha, 0x028d,
 159                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 160                     __func__, abts_rsp->comp_status,
 161                     abts_rsp->payload.error.subcode1,
 162                     abts_rsp->payload.error.subcode2);
 163         } else {
 164                 ql_dbg(ql_dbg_init, vha, 0x028ea,
 165                     "%s: done.\n", __func__);
 166         }
 167
 168         dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, dma);
 169 }
 170
 171 /**
 172  * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
 173  * @irq: interrupt number
 174  * @dev_id: SCSI driver HA context
 175  *
 176  * Called by system whenever the host adapter generates an interrupt.
 177  *
 178  * Returns handled flag.
 179  */
 180 irqreturn_t
 181 qla2100_intr_handler(int irq, void *dev_id)
 182 {
 183         scsi_qla_host_t *vha;
 184         struct qla_hw_data *ha;
 185         struct device_reg_2xxx __iomem *reg;
 186         int             status;
 187         unsigned long   iter;
 188         uint16_t        hccr;
 189         uint16_t        mb[8];
 190         struct rsp_que *rsp;
 191         unsigned long   flags;
 192
 193         rsp = (struct rsp_que *) dev_id;
 194         if (!rsp) {
 195                 ql_log(ql_log_info, NULL, 0x505d,
 196                     "%s: NULL response queue pointer.\n", __func__);
 197                 return (IRQ_NONE);
 198         }
 199
 200         ha = rsp->hw;
 201         reg = &ha->iobase->isp;
 202         status = 0;
 203
 204         spin_lock_irqsave(&ha->hardware_lock, flags);
 205         vha = pci_get_drvdata(ha->pdev);
 206         for (iter = 50; iter--; ) {
 207                 hccr = rd_reg_word(&reg->hccr);
 208                 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
 209                         break;
 210                 if (hccr & HCCR_RISC_PAUSE) {
 211                         if (pci_channel_offline(ha->pdev))
 212                                 break;
 213
 214                         /*
 215                          * Issue a "HARD" reset in order for the RISC interrupt
 216                          * bit to be cleared.  Schedule a big hammer to get
 217                          * out of the RISC PAUSED state.
 218                          */
 219                         wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 220                         rd_reg_word(&reg->hccr);
 221
 222                         ha->isp_ops->fw_dump(vha);
 223                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 224                         break;
 225                 } else if ((rd_reg_word(&reg->istatus) & ISR_RISC_INT) == 0)
 226                         break;
 227
 228                 if (rd_reg_word(&reg->semaphore) & BIT_0) {
 229                         wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 230                         rd_reg_word(&reg->hccr);
 231
 232                         /* Get mailbox data. */
 233                         mb[0] = RD_MAILBOX_REG(ha, reg, 0);
 234                         if (mb[0] > 0x3fff && mb[0] < 0x8000) {
 235                                 qla2x00_mbx_completion(vha, mb[0]);
 236                                 status |= MBX_INTERRUPT;
 237                         } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
 238                                 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 239                                 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 240                                 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 241                                 qla2x00_async_event(vha, rsp, mb);
 242                         } else {
 243                                 /*EMPTY*/
 244                                 ql_dbg(ql_dbg_async, vha, 0x5025,
 245                                     "Unrecognized interrupt type (%d).\n",
 246                                     mb[0]);
 247                         }
 248                         /* Release mailbox registers. */
 249                         wrt_reg_word(&reg->semaphore, 0);
 250                         rd_reg_word(&reg->semaphore);
 251                 } else {
 252                         qla2x00_process_response_queue(rsp);
 253
 254                         wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 255                         rd_reg_word(&reg->hccr);
 256                 }
 257         }
 258         qla2x00_handle_mbx_completion(ha, status);
 259         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 260
 261         return (IRQ_HANDLED);
 262 }
 263
 264 bool
 265 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
 266 {
 267         /* Check for PCI disconnection */
 268         if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
 269                 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
 270                     !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
 271                     !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
 272                         /*
 273                          * Schedule this (only once) on the default system
 274                          * workqueue so that all the adapter workqueues and the
 275                          * DPC thread can be shutdown cleanly.
 276                          */
 277                         schedule_work(&vha->hw->board_disable);
 278                 }
 279                 return true;
 280         } else
 281                 return false;
 282 }
 283
 284 bool
 285 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
 286 {
 287         return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
 288 }
 289
 290 /**
 291  * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 292  * @irq: interrupt number
 293  * @dev_id: SCSI driver HA context
 294  *
 295  * Called by system whenever the host adapter generates an interrupt.
 296  *
 297  * Returns handled flag.
 298  */
 299 irqreturn_t
 300 qla2300_intr_handler(int irq, void *dev_id)
 301 {
 302         scsi_qla_host_t *vha;
 303         struct device_reg_2xxx __iomem *reg;
 304         int             status;
 305         unsigned long   iter;
 306         uint32_t        stat;
 307         uint16_t        hccr;
 308         uint16_t        mb[8];
 309         struct rsp_que *rsp;
 310         struct qla_hw_data *ha;
 311         unsigned long   flags;
 312
 313         rsp = (struct rsp_que *) dev_id;
 314         if (!rsp) {
 315                 ql_log(ql_log_info, NULL, 0x5058,
 316                     "%s: NULL response queue pointer.\n", __func__);
 317                 return (IRQ_NONE);
 318         }
 319
 320         ha = rsp->hw;
 321         reg = &ha->iobase->isp;
 322         status = 0;
 323
 324         spin_lock_irqsave(&ha->hardware_lock, flags);
 325         vha = pci_get_drvdata(ha->pdev);
 326         for (iter = 50; iter--; ) {
 327                 stat = rd_reg_dword(&reg->u.isp2300.host_status);
 328                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
 329                         break;
 330                 if (stat & HSR_RISC_PAUSED) {
 331                         if (unlikely(pci_channel_offline(ha->pdev)))
 332                                 break;
 333
 334                         hccr = rd_reg_word(&reg->hccr);
 335
 336                         if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
 337                                 ql_log(ql_log_warn, vha, 0x5026,
 338                                     "Parity error -- HCCR=%x, Dumping "
 339                                     "firmware.\n", hccr);
 340                         else
 341                                 ql_log(ql_log_warn, vha, 0x5027,
 342                                     "RISC paused -- HCCR=%x, Dumping "
 343                                     "firmware.\n", hccr);
 344
 345                         /*
 346                          * Issue a "HARD" reset in order for the RISC
 347                          * interrupt bit to be cleared.  Schedule a big
 348                          * hammer to get out of the RISC PAUSED state.
 349                          */
 350                         wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 351                         rd_reg_word(&reg->hccr);
 352
 353                         ha->isp_ops->fw_dump(vha);
 354                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 355                         break;
 356                 } else if ((stat & HSR_RISC_INT) == 0)
 357                         break;
 358
 359                 switch (stat & 0xff) {
 360                 case 0x1:
 361                 case 0x2:
 362                 case 0x10:
 363                 case 0x11:
 364                         qla2x00_mbx_completion(vha, MSW(stat));
 365                         status |= MBX_INTERRUPT;
 366
 367                         /* Release mailbox registers. */
 368                         wrt_reg_word(&reg->semaphore, 0);
 369                         break;
 370                 case 0x12:
 371                         mb[0] = MSW(stat);
 372                         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 373                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 374                         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 375                         qla2x00_async_event(vha, rsp, mb);
 376                         break;
 377                 case 0x13:
 378                         qla2x00_process_response_queue(rsp);
 379                         break;
 380                 case 0x15:
 381                         mb[0] = MBA_CMPLT_1_16BIT;
 382                         mb[1] = MSW(stat);
 383                         qla2x00_async_event(vha, rsp, mb);
 384                         break;
 385                 case 0x16:
 386                         mb[0] = MBA_SCSI_COMPLETION;
 387                         mb[1] = MSW(stat);
 388                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 389                         qla2x00_async_event(vha, rsp, mb);
 390                         break;
 391                 default:
 392                         ql_dbg(ql_dbg_async, vha, 0x5028,
 393                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
 394                         break;
 395                 }
 396                 wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 397                 rd_reg_word_relaxed(&reg->hccr);
 398         }
 399         qla2x00_handle_mbx_completion(ha, status);
 400         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 401
 402         return (IRQ_HANDLED);
 403 }
 404
 405 /**
 406  * qla2x00_mbx_completion() - Process mailbox command completions.
 407  * @vha: SCSI driver HA context
 408  * @mb0: Mailbox0 register
 409  */
 410 static void
 411 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 412 {
 413         uint16_t        cnt;
 414         uint32_t        mboxes;
 415         __le16 __iomem *wptr;
 416         struct qla_hw_data *ha = vha->hw;
 417         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 418
 419         /* Read all mbox registers? */
 420         WARN_ON_ONCE(ha->mbx_count > 32);
 421         mboxes = (1ULL << ha->mbx_count) - 1;
 422         if (!ha->mcp)
 423                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 424         else
 425                 mboxes = ha->mcp->in_mb;
 426
 427         /* Load return mailbox registers. */
 428         ha->flags.mbox_int = 1;
 429         ha->mailbox_out[0] = mb0;
 430         mboxes >>= 1;
 431         wptr = MAILBOX_REG(ha, reg, 1);
 432
 433         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 434                 if (IS_QLA2200(ha) && cnt == 8)
 435                         wptr = MAILBOX_REG(ha, reg, 8);
 436                 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 437                         ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 438                 else if (mboxes & BIT_0)
 439                         ha->mailbox_out[cnt] = rd_reg_word(wptr);
 440
 441                 wptr++;
 442                 mboxes >>= 1;
 443         }
 444 }
 445
 446 static void
 447 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 448 {
 449         static char *event[] =
 450                 { "Complete", "Request Notification", "Time Extension" };
 451         int rval;
 452         struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 453         struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 454         __le16 __iomem *wptr;
 455         uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 456
 457         /* Seed data -- mailbox1 -> mailbox7. */
 458         if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 459                 wptr = &reg24->mailbox1;
 460         else if (IS_QLA8044(vha->hw))
 461                 wptr = &reg82->mailbox_out[1];
 462         else
 463                 return;
 464
 465         for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 466                 mb[cnt] = rd_reg_word(wptr);
 467
 468         ql_dbg(ql_dbg_async, vha, 0x5021,
 469             "Inter-Driver Communication %s -- "
 470             "%04x %04x %04x %04x %04x %04x %04x.\n",
 471             event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 472             mb[4], mb[5], mb[6]);
 473         switch (aen) {
 474         /* Handle IDC Error completion case. */
 475         case MBA_IDC_COMPLETE:
 476                 if (mb[1] >> 15) {
 477                         vha->hw->flags.idc_compl_status = 1;
 478                         if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 479                                 complete(&vha->hw->dcbx_comp);
 480                 }
 481                 break;
 482
 483         case MBA_IDC_NOTIFY:
 484                 /* Acknowledgement needed? [Notify && non-zero timeout]. */
 485                 timeout = (descr >> 8) & 0xf;
 486                 ql_dbg(ql_dbg_async, vha, 0x5022,
 487                     "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 488                     vha->host_no, event[aen & 0xff], timeout);
 489
 490                 if (!timeout)
 491                         return;
 492                 rval = qla2x00_post_idc_ack_work(vha, mb);
 493                 if (rval != QLA_SUCCESS)
 494                         ql_log(ql_log_warn, vha, 0x5023,
 495                             "IDC failed to post ACK.\n");
 496                 break;
 497         case MBA_IDC_TIME_EXT:
 498                 vha->hw->idc_extend_tmo = descr;
 499                 ql_dbg(ql_dbg_async, vha, 0x5087,
 500                     "%lu Inter-Driver Communication %s -- "
 501                     "Extend timeout by=%d.\n",
 502                     vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 503                 break;
 504         }
 505 }
 506
 507 #define LS_UNKNOWN      2
 508 const char *
 509 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 510 {
 511         static const char *const link_speeds[] = {
 512                 "1", "2", "?", "4", "8", "16", "32", "10"
 513         };
 514 #define QLA_LAST_SPEED (ARRAY_SIZE(link_speeds) - 1)
 515
 516         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 517                 return link_speeds[0];
 518         else if (speed == 0x13)
 519                 return link_speeds[QLA_LAST_SPEED];
 520         else if (speed < QLA_LAST_SPEED)
 521                 return link_speeds[speed];
 522         else
 523                 return link_speeds[LS_UNKNOWN];
 524 }
 525
 526 static void
 527 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 528 {
 529         struct qla_hw_data *ha = vha->hw;
 530
 531         /*
 532          * 8200 AEN Interpretation:
 533          * mb[0] = AEN code
 534          * mb[1] = AEN Reason code
 535          * mb[2] = LSW of Peg-Halt Status-1 Register
 536          * mb[6] = MSW of Peg-Halt Status-1 Register
 537          * mb[3] = LSW of Peg-Halt Status-2 register
 538          * mb[7] = MSW of Peg-Halt Status-2 register
 539          * mb[4] = IDC Device-State Register value
 540          * mb[5] = IDC Driver-Presence Register value
 541          */
 542         ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 543             "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 544             mb[0], mb[1], mb[2], mb[6]);
 545         ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 546             "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 547             "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 548
 549         if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 550                                 IDC_HEARTBEAT_FAILURE)) {
 551                 ha->flags.nic_core_hung = 1;
 552                 ql_log(ql_log_warn, vha, 0x5060,
 553                     "83XX: F/W Error Reported: Check if reset required.\n");
 554
 555                 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 556                         uint32_t protocol_engine_id, fw_err_code, err_level;
 557
 558                         /*
 559                          * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 560                          *  - PEG-Halt Status-1 Register:
 561                          *      (LSW = mb[2], MSW = mb[6])
 562                          *      Bits 0-7   = protocol-engine ID
 563                          *      Bits 8-28  = f/w error code
 564                          *      Bits 29-31 = Error-level
 565                          *          Error-level 0x1 = Non-Fatal error
 566                          *          Error-level 0x2 = Recoverable Fatal error
 567                          *          Error-level 0x4 = UnRecoverable Fatal error
 568                          *  - PEG-Halt Status-2 Register:
 569                          *      (LSW = mb[3], MSW = mb[7])
 570                          */
 571                         protocol_engine_id = (mb[2] & 0xff);
 572                         fw_err_code = (((mb[2] & 0xff00) >> 8) |
 573                             ((mb[6] & 0x1fff) << 8));
 574                         err_level = ((mb[6] & 0xe000) >> 13);
 575                         ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 576                             "Register: protocol_engine_id=0x%x "
 577                             "fw_err_code=0x%x err_level=0x%x.\n",
 578                             protocol_engine_id, fw_err_code, err_level);
 579                         ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 580                             "Register: 0x%x%x.\n", mb[7], mb[3]);
 581                         if (err_level == ERR_LEVEL_NON_FATAL) {
 582                                 ql_log(ql_log_warn, vha, 0x5063,
 583                                     "Not a fatal error, f/w has recovered itself.\n");
 584                         } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 585                                 ql_log(ql_log_fatal, vha, 0x5064,
 586                                     "Recoverable Fatal error: Chip reset "
 587                                     "required.\n");
 588                                 qla83xx_schedule_work(vha,
 589                                     QLA83XX_NIC_CORE_RESET);
 590                         } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 591                                 ql_log(ql_log_fatal, vha, 0x5065,
 592                                     "Unrecoverable Fatal error: Set FAILED "
 593                                     "state, reboot required.\n");
 594                                 qla83xx_schedule_work(vha,
 595                                     QLA83XX_NIC_CORE_UNRECOVERABLE);
 596                         }
 597                 }
 598
 599                 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 600                         uint16_t peg_fw_state, nw_interface_link_up;
 601                         uint16_t nw_interface_signal_detect, sfp_status;
 602                         uint16_t htbt_counter, htbt_monitor_enable;
 603                         uint16_t sfp_additional_info, sfp_multirate;
 604                         uint16_t sfp_tx_fault, link_speed, dcbx_status;
 605
 606                         /*
 607                          * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 608                          *  - PEG-to-FC Status Register:
 609                          *      (LSW = mb[2], MSW = mb[6])
 610                          *      Bits 0-7   = Peg-Firmware state
 611                          *      Bit 8      = N/W Interface Link-up
 612                          *      Bit 9      = N/W Interface signal detected
 613                          *      Bits 10-11 = SFP Status
 614                          *        SFP Status 0x0 = SFP+ transceiver not expected
 615                          *        SFP Status 0x1 = SFP+ transceiver not present
 616                          *        SFP Status 0x2 = SFP+ transceiver invalid
 617                          *        SFP Status 0x3 = SFP+ transceiver present and
 618                          *        valid
 619                          *      Bits 12-14 = Heartbeat Counter
 620                          *      Bit 15     = Heartbeat Monitor Enable
 621                          *      Bits 16-17 = SFP Additional Info
 622                          *        SFP info 0x0 = Unregocnized transceiver for
 623                          *        Ethernet
 624                          *        SFP info 0x1 = SFP+ brand validation failed
 625                          *        SFP info 0x2 = SFP+ speed validation failed
 626                          *        SFP info 0x3 = SFP+ access error
 627                          *      Bit 18     = SFP Multirate
 628                          *      Bit 19     = SFP Tx Fault
 629                          *      Bits 20-22 = Link Speed
 630                          *      Bits 23-27 = Reserved
 631                          *      Bits 28-30 = DCBX Status
 632                          *        DCBX Status 0x0 = DCBX Disabled
 633                          *        DCBX Status 0x1 = DCBX Enabled
 634                          *        DCBX Status 0x2 = DCBX Exchange error
 635                          *      Bit 31     = Reserved
 636                          */
 637                         peg_fw_state = (mb[2] & 0x00ff);
 638                         nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 639                         nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 640                         sfp_status = ((mb[2] & 0x0c00) >> 10);
 641                         htbt_counter = ((mb[2] & 0x7000) >> 12);
 642                         htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 643                         sfp_additional_info = (mb[6] & 0x0003);
 644                         sfp_multirate = ((mb[6] & 0x0004) >> 2);
 645                         sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 646                         link_speed = ((mb[6] & 0x0070) >> 4);
 647                         dcbx_status = ((mb[6] & 0x7000) >> 12);
 648
 649                         ql_log(ql_log_warn, vha, 0x5066,
 650                             "Peg-to-Fc Status Register:\n"
 651                             "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 652                             "nw_interface_signal_detect=0x%x"
 653                             "\nsfp_statis=0x%x.\n ", peg_fw_state,
 654                             nw_interface_link_up, nw_interface_signal_detect,
 655                             sfp_status);
 656                         ql_log(ql_log_warn, vha, 0x5067,
 657                             "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 658                             "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
 659                             htbt_counter, htbt_monitor_enable,
 660                             sfp_additional_info, sfp_multirate);
 661                         ql_log(ql_log_warn, vha, 0x5068,
 662                             "sfp_tx_fault=0x%x, link_state=0x%x, "
 663                             "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 664                             dcbx_status);
 665
 666                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 667                 }
 668
 669                 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 670                         ql_log(ql_log_warn, vha, 0x5069,
 671                             "Heartbeat Failure encountered, chip reset "
 672                             "required.\n");
 673
 674                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 675                 }
 676         }
 677
 678         if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 679                 ql_log(ql_log_info, vha, 0x506a,
 680                     "IDC Device-State changed = 0x%x.\n", mb[4]);
 681                 if (ha->flags.nic_core_reset_owner)
 682                         return;
 683                 qla83xx_schedule_work(vha, MBA_IDC_AEN);
 684         }
 685 }
 686
 687 int
 688 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 689 {
 690         struct qla_hw_data *ha = vha->hw;
 691         scsi_qla_host_t *vp;
 692         uint32_t vp_did;
 693         unsigned long flags;
 694         int ret = 0;
 695
 696         if (!ha->num_vhosts)
 697                 return ret;
 698
 699         spin_lock_irqsave(&ha->vport_slock, flags);
 700         list_for_each_entry(vp, &ha->vp_list, list) {
 701                 vp_did = vp->d_id.b24;
 702                 if (vp_did == rscn_entry) {
 703                         ret = 1;
 704                         break;
 705                 }
 706         }
 707         spin_unlock_irqrestore(&ha->vport_slock, flags);
 708
 709         return ret;
 710 }
 711
 712 fc_port_t *
 713 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
 714 {
 715         fc_port_t *f, *tf;
 716
 717         f = tf = NULL;
 718         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
 719                 if (f->loop_id == loop_id)
 720                         return f;
 721         return NULL;
 722 }
 723
 724 fc_port_t *
 725 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
 726 {
 727         fc_port_t *f, *tf;
 728
 729         f = tf = NULL;
 730         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 731                 if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
 732                         if (incl_deleted)
 733                                 return f;
 734                         else if (f->deleted == 0)
 735                                 return f;
 736                 }
 737         }
 738         return NULL;
 739 }
 740
 741 fc_port_t *
 742 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
 743         u8 incl_deleted)
 744 {
 745         fc_port_t *f, *tf;
 746
 747         f = tf = NULL;
 748         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 749                 if (f->d_id.b24 == id->b24) {
 750                         if (incl_deleted)
 751                                 return f;
 752                         else if (f->deleted == 0)
 753                                 return f;
 754                 }
 755         }
 756         return NULL;
 757 }
 758
 759 /* Shall be called only on supported adapters. */
 760 static void
 761 qla27xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 762 {
 763         struct qla_hw_data *ha = vha->hw;
 764         bool reset_isp_needed = 0;
 765
 766         ql_log(ql_log_warn, vha, 0x02f0,
 767                "MPI Heartbeat stop. MPI reset is%s needed. "
 768                "MB0[%xh] MB1[%xh] MB2[%xh] MB3[%xh]\n",
 769                mb[1] & BIT_8 ? "" : " not",
 770                mb[0], mb[1], mb[2], mb[3]);
 771
 772         if ((mb[1] & BIT_8) == 0)
 773                 return;
 774
 775         ql_log(ql_log_warn, vha, 0x02f1,
 776                "MPI Heartbeat stop. FW dump needed\n");
 777
 778         if (ql2xfulldump_on_mpifail) {
 779                 ha->isp_ops->fw_dump(vha);
 780                 reset_isp_needed = 1;
 781         }
 782
 783         ha->isp_ops->mpi_fw_dump(vha, 1);
 784
 785         if (reset_isp_needed) {
 786                 vha->hw->flags.fw_init_done = 0;
 787                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 788                 qla2xxx_wake_dpc(vha);
 789         }
 790 }
 791
 792 static struct purex_item *
 793 qla24xx_alloc_purex_item(scsi_qla_host_t *vha, uint16_t size)
 794 {
 795         struct purex_item *item = NULL;
 796         uint8_t item_hdr_size = sizeof(*item);
 797
 798         if (size > QLA_DEFAULT_PAYLOAD_SIZE) {
 799                 item = kzalloc(item_hdr_size +
 800                     (size - QLA_DEFAULT_PAYLOAD_SIZE), GFP_ATOMIC);
 801         } else {
 802                 if (atomic_inc_return(&vha->default_item.in_use) == 1) {
 803                         item = &vha->default_item;
 804                         goto initialize_purex_header;
 805                 } else {
 806                         item = kzalloc(item_hdr_size, GFP_ATOMIC);
 807                 }
 808         }
 809         if (!item) {
 810                 ql_log(ql_log_warn, vha, 0x5092,
 811                        ">> Failed allocate purex list item.\n");
 812
 813                 return NULL;
 814         }
 815
 816 initialize_purex_header:
 817         item->vha = vha;
 818         item->size = size;
 819         return item;
 820 }
 821
 822 static void
 823 qla24xx_queue_purex_item(scsi_qla_host_t *vha, struct purex_item *pkt,
 824                          void (*process_item)(struct scsi_qla_host *vha,
 825                                               struct purex_item *pkt))
 826 {
 827         struct purex_list *list = &vha->purex_list;
 828         ulong flags;
 829
 830         pkt->process_item = process_item;
 831
 832         spin_lock_irqsave(&list->lock, flags);
 833         list_add_tail(&pkt->list, &list->head);
 834         spin_unlock_irqrestore(&list->lock, flags);
 835
 836         set_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
 837 }
 838
 839 /**
 840  * qla24xx_copy_std_pkt() - Copy over purex ELS which is
 841  * contained in a single IOCB.
 842  * purex packet.
 843  * @vha: SCSI driver HA context
 844  * @pkt: ELS packet
 845  */
 846 static struct purex_item
 847 *qla24xx_copy_std_pkt(struct scsi_qla_host *vha, void *pkt)
 848 {
 849         struct purex_item *item;
 850
 851         item = qla24xx_alloc_purex_item(vha,
 852                                         QLA_DEFAULT_PAYLOAD_SIZE);
 853         if (!item)
 854                 return item;
 855
 856         memcpy(&item->iocb, pkt, sizeof(item->iocb));
 857         return item;
 858 }
 859
 860 /**
 861  * qla27xx_copy_fpin_pkt() - Copy over fpin packets that can
 862  * span over multiple IOCBs.
 863  * @vha: SCSI driver HA context
 864  * @pkt: ELS packet
 865  * @rsp: Response queue
 866  */
 867 static struct purex_item *
 868 qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha, void **pkt,
 869                       struct rsp_que **rsp)
 870 {
 871         struct purex_entry_24xx *purex = *pkt;
 872         struct rsp_que *rsp_q = *rsp;
 873         sts_cont_entry_t *new_pkt;
 874         uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
 875         uint16_t buffer_copy_offset = 0;
 876         uint16_t entry_count, entry_count_remaining;
 877         struct purex_item *item;
 878         void *fpin_pkt = NULL;
 879
 880         total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
 881             - PURX_ELS_HEADER_SIZE;
 882         pending_bytes = total_bytes;
 883         entry_count = entry_count_remaining = purex->entry_count;
 884         no_bytes = (pending_bytes > sizeof(purex->els_frame_payload))  ?
 885                    sizeof(purex->els_frame_payload) : pending_bytes;
 886         ql_log(ql_log_info, vha, 0x509a,
 887                "FPIN ELS, frame_size 0x%x, entry count %d\n",
 888                total_bytes, entry_count);
 889
 890         item = qla24xx_alloc_purex_item(vha, total_bytes);
 891         if (!item)
 892                 return item;
 893
 894         fpin_pkt = &item->iocb;
 895
 896         memcpy(fpin_pkt, &purex->els_frame_payload[0], no_bytes);
 897         buffer_copy_offset += no_bytes;
 898         pending_bytes -= no_bytes;
 899         --entry_count_remaining;
 900
 901         ((response_t *)purex)->signature = RESPONSE_PROCESSED;
 902         wmb();
 903
 904         do {
 905                 while ((total_bytes > 0) && (entry_count_remaining > 0)) {
 906                         if (rsp_q->ring_ptr->signature == RESPONSE_PROCESSED) {
 907                                 ql_dbg(ql_dbg_async, vha, 0x5084,
 908                                        "Ran out of IOCBs, partial data 0x%x\n",
 909                                        buffer_copy_offset);
 910                                 cpu_relax();
 911                                 continue;
 912                         }
 913
 914                         new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
 915                         *pkt = new_pkt;
 916
 917                         if (new_pkt->entry_type != STATUS_CONT_TYPE) {
 918                                 ql_log(ql_log_warn, vha, 0x507a,
 919                                        "Unexpected IOCB type, partial data 0x%x\n",
 920                                        buffer_copy_offset);
 921                                 break;
 922                         }
 923
 924                         rsp_q->ring_index++;
 925                         if (rsp_q->ring_index == rsp_q->length) {
 926                                 rsp_q->ring_index = 0;
 927                                 rsp_q->ring_ptr = rsp_q->ring;
 928                         } else {
 929                                 rsp_q->ring_ptr++;
 930                         }
 931                         no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
 932                             sizeof(new_pkt->data) : pending_bytes;
 933                         if ((buffer_copy_offset + no_bytes) <= total_bytes) {
 934                                 memcpy(((uint8_t *)fpin_pkt +
 935                                     buffer_copy_offset), new_pkt->data,
 936                                     no_bytes);
 937                                 buffer_copy_offset += no_bytes;
 938                                 pending_bytes -= no_bytes;
 939                                 --entry_count_remaining;
 940                         } else {
 941                                 ql_log(ql_log_warn, vha, 0x5044,
 942                                        "Attempt to copy more that we got, optimizing..%x\n",
 943                                        buffer_copy_offset);
 944                                 memcpy(((uint8_t *)fpin_pkt +
 945                                     buffer_copy_offset), new_pkt->data,
 946                                     total_bytes - buffer_copy_offset);
 947                         }
 948
 949                         ((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
 950                         wmb();
 951                 }
 952
 953                 if (pending_bytes != 0 || entry_count_remaining != 0) {
 954                         ql_log(ql_log_fatal, vha, 0x508b,
 955                                "Dropping partial FPIN, underrun bytes = 0x%x, entry cnts 0x%x\n",
 956                                total_bytes, entry_count_remaining);
 957                         qla24xx_free_purex_item(item);
 958                         return NULL;
 959                 }
 960         } while (entry_count_remaining > 0);
 961         host_to_fcp_swap((uint8_t *)&item->iocb, total_bytes);
 962         return item;
 963 }
 964
 965 /**
 966  * qla2x00_async_event() - Process aynchronous events.
 967  * @vha: SCSI driver HA context
 968  * @rsp: response queue
 969  * @mb: Mailbox registers (0 - 3)
 970  */
 971 void
 972 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
 973 {
 974         uint16_t        handle_cnt;
 975         uint16_t        cnt, mbx;
 976         uint32_t        handles[5];
 977         struct qla_hw_data *ha = vha->hw;
 978         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 979         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
 980         struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 981         uint32_t        rscn_entry, host_pid;
 982         unsigned long   flags;
 983         fc_port_t       *fcport = NULL;
 984
 985         if (!vha->hw->flags.fw_started)
 986                 return;
 987
 988         /* Setup to process RIO completion. */
 989         handle_cnt = 0;
 990         if (IS_CNA_CAPABLE(ha))
 991                 goto skip_rio;
 992         switch (mb[0]) {
 993         case MBA_SCSI_COMPLETION:
 994                 handles[0] = make_handle(mb[2], mb[1]);
 995                 handle_cnt = 1;
 996                 break;
 997         case MBA_CMPLT_1_16BIT:
 998                 handles[0] = mb[1];
 999                 handle_cnt = 1;
1000                 mb[0] = MBA_SCSI_COMPLETION;
1001                 break;
1002         case MBA_CMPLT_2_16BIT:
1003                 handles[0] = mb[1];
1004                 handles[1] = mb[2];
1005                 handle_cnt = 2;
1006                 mb[0] = MBA_SCSI_COMPLETION;
1007                 break;
1008         case MBA_CMPLT_3_16BIT:
1009                 handles[0] = mb[1];
1010                 handles[1] = mb[2];
1011                 handles[2] = mb[3];
1012                 handle_cnt = 3;
1013                 mb[0] = MBA_SCSI_COMPLETION;
1014                 break;
1015         case MBA_CMPLT_4_16BIT:
1016                 handles[0] = mb[1];
1017                 handles[1] = mb[2];
1018                 handles[2] = mb[3];
1019                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1020                 handle_cnt = 4;
1021                 mb[0] = MBA_SCSI_COMPLETION;
1022                 break;
1023         case MBA_CMPLT_5_16BIT:
1024                 handles[0] = mb[1];
1025                 handles[1] = mb[2];
1026                 handles[2] = mb[3];
1027                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1028                 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
1029                 handle_cnt = 5;
1030                 mb[0] = MBA_SCSI_COMPLETION;
1031                 break;
1032         case MBA_CMPLT_2_32BIT:
1033                 handles[0] = make_handle(mb[2], mb[1]);
1034                 handles[1] = make_handle(RD_MAILBOX_REG(ha, reg, 7),
1035                                          RD_MAILBOX_REG(ha, reg, 6));
1036                 handle_cnt = 2;
1037                 mb[0] = MBA_SCSI_COMPLETION;
1038                 break;
1039         default:
1040                 break;
1041         }
1042 skip_rio:
1043         switch (mb[0]) {
1044         case MBA_SCSI_COMPLETION:       /* Fast Post */
1045                 if (!vha->flags.online)
1046                         break;
1047
1048                 for (cnt = 0; cnt < handle_cnt; cnt++)
1049                         qla2x00_process_completed_request(vha, rsp->req,
1050                                 handles[cnt]);
1051                 break;
1052
1053         case MBA_RESET:                 /* Reset */
1054                 ql_dbg(ql_dbg_async, vha, 0x5002,
1055                     "Asynchronous RESET.\n");
1056
1057                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1058                 break;
1059
1060         case MBA_SYSTEM_ERR:            /* System Error */
1061                 mbx = 0;
1062                 if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
1063                     IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1064                         u16 m[4];
1065
1066                         m[0] = rd_reg_word(&reg24->mailbox4);
1067                         m[1] = rd_reg_word(&reg24->mailbox5);
1068                         m[2] = rd_reg_word(&reg24->mailbox6);
1069                         mbx = m[3] = rd_reg_word(&reg24->mailbox7);
1070
1071                         ql_log(ql_log_warn, vha, 0x5003,
1072                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh mbx4=%xh mbx5=%xh mbx6=%xh mbx7=%xh.\n",
1073                             mb[1], mb[2], mb[3], m[0], m[1], m[2], m[3]);
1074                 } else
1075                         ql_log(ql_log_warn, vha, 0x5003,
1076                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n ",
1077                             mb[1], mb[2], mb[3]);
1078
1079                 if ((IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
1080                     rd_reg_word(&reg24->mailbox7) & BIT_8)
1081                         ha->isp_ops->mpi_fw_dump(vha, 1);
1082                 ha->isp_ops->fw_dump(vha);
1083                 ha->flags.fw_init_done = 0;
1084                 QLA_FW_STOPPED(ha);
1085
1086                 if (IS_FWI2_CAPABLE(ha)) {
1087                         if (mb[1] == 0 && mb[2] == 0) {
1088                                 ql_log(ql_log_fatal, vha, 0x5004,
1089                                     "Unrecoverable Hardware Error: adapter "
1090                                     "marked OFFLINE!\n");
1091                                 vha->flags.online = 0;
1092                                 vha->device_flags |= DFLG_DEV_FAILED;
1093                         } else {
1094                                 /* Check to see if MPI timeout occurred */
1095                                 if ((mbx & MBX_3) && (ha->port_no == 0))
1096                                         set_bit(MPI_RESET_NEEDED,
1097                                             &vha->dpc_flags);
1098
1099                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1100                         }
1101                 } else if (mb[1] == 0) {
1102                         ql_log(ql_log_fatal, vha, 0x5005,
1103                             "Unrecoverable Hardware Error: adapter marked "
1104                             "OFFLINE!\n");
1105                         vha->flags.online = 0;
1106                         vha->device_flags |= DFLG_DEV_FAILED;
1107                 } else
1108                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1109                 break;
1110
1111         case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
1112                 ql_log(ql_log_warn, vha, 0x5006,
1113                     "ISP Request Transfer Error (%x).\n",  mb[1]);
1114
1115                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1116                 break;
1117
1118         case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
1119                 ql_log(ql_log_warn, vha, 0x5007,
1120                     "ISP Response Transfer Error (%x).\n", mb[1]);
1121
1122                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1123                 break;
1124
1125         case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
1126                 ql_dbg(ql_dbg_async, vha, 0x5008,
1127                     "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
1128                 break;
1129
1130         case MBA_LOOP_INIT_ERR:
1131                 ql_log(ql_log_warn, vha, 0x5090,
1132                     "LOOP INIT ERROR (%x).\n", mb[1]);
1133                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1134                 break;
1135
1136         case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
1137                 ha->flags.lip_ae = 1;
1138
1139                 ql_dbg(ql_dbg_async, vha, 0x5009,
1140                     "LIP occurred (%x).\n", mb[1]);
1141
1142                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1143                         atomic_set(&vha->loop_state, LOOP_DOWN);
1144                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1145                         qla2x00_mark_all_devices_lost(vha);
1146                 }
1147
1148                 if (vha->vp_idx) {
1149                         atomic_set(&vha->vp_state, VP_FAILED);
1150                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1151                 }
1152
1153                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1154                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1155
1156                 vha->flags.management_server_logged_in = 0;
1157                 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
1158                 break;
1159
1160         case MBA_LOOP_UP:               /* Loop Up Event */
1161                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
1162                         ha->link_data_rate = PORT_SPEED_1GB;
1163                 else
1164                         ha->link_data_rate = mb[1];
1165
1166                 ql_log(ql_log_info, vha, 0x500a,
1167                     "LOOP UP detected (%s Gbps).\n",
1168                     qla2x00_get_link_speed_str(ha, ha->link_data_rate));
1169
1170                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1171                         if (mb[2] & BIT_0)
1172                                 ql_log(ql_log_info, vha, 0x11a0,
1173                                     "FEC=enabled (link up).\n");
1174                 }
1175
1176                 vha->flags.management_server_logged_in = 0;
1177                 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
1178
1179                 break;
1180
1181         case MBA_LOOP_DOWN:             /* Loop Down Event */
1182                 SAVE_TOPO(ha);
1183                 ha->flags.lip_ae = 0;
1184                 ha->current_topology = 0;
1185
1186                 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
1187                         ? rd_reg_word(&reg24->mailbox4) : 0;
1188                 mbx = (IS_P3P_TYPE(ha)) ? rd_reg_word(&reg82->mailbox_out[4])
1189                         : mbx;
1190                 ql_log(ql_log_info, vha, 0x500b,
1191                     "LOOP DOWN detected (%x %x %x %x).\n",
1192                     mb[1], mb[2], mb[3], mbx);
1193
1194                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1195                         atomic_set(&vha->loop_state, LOOP_DOWN);
1196                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1197                         /*
1198                          * In case of loop down, restore WWPN from
1199                          * NVRAM in case of FA-WWPN capable ISP
1200                          * Restore for Physical Port only
1201                          */
1202                         if (!vha->vp_idx) {
1203                                 if (ha->flags.fawwpn_enabled &&
1204                                     (ha->current_topology == ISP_CFG_F)) {
1205                                         void *wwpn = ha->init_cb->port_name;
1206
1207                                         memcpy(vha->port_name, wwpn, WWN_SIZE);
1208                                         fc_host_port_name(vha->host) =
1209                                             wwn_to_u64(vha->port_name);
1210                                         ql_dbg(ql_dbg_init + ql_dbg_verbose,
1211                                             vha, 0x00d8, "LOOP DOWN detected,"
1212                                             "restore WWPN %016llx\n",
1213                                             wwn_to_u64(vha->port_name));
1214                                 }
1215
1216                                 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
1217                         }
1218
1219                         vha->device_flags |= DFLG_NO_CABLE;
1220                         qla2x00_mark_all_devices_lost(vha);
1221                 }
1222
1223                 if (vha->vp_idx) {
1224                         atomic_set(&vha->vp_state, VP_FAILED);
1225                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1226                 }
1227
1228                 vha->flags.management_server_logged_in = 0;
1229                 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1230                 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
1231                 break;
1232
1233         case MBA_LIP_RESET:             /* LIP reset occurred */
1234                 ql_dbg(ql_dbg_async, vha, 0x500c,
1235                     "LIP reset occurred (%x).\n", mb[1]);
1236
1237                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1238                         atomic_set(&vha->loop_state, LOOP_DOWN);
1239                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1240                         qla2x00_mark_all_devices_lost(vha);
1241                 }
1242
1243                 if (vha->vp_idx) {
1244                         atomic_set(&vha->vp_state, VP_FAILED);
1245                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1246                 }
1247
1248                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1249
1250                 ha->operating_mode = LOOP;
1251                 vha->flags.management_server_logged_in = 0;
1252                 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
1253                 break;
1254
1255         /* case MBA_DCBX_COMPLETE: */
1256         case MBA_POINT_TO_POINT:        /* Point-to-Point */
1257                 ha->flags.lip_ae = 0;
1258
1259                 if (IS_QLA2100(ha))
1260                         break;
1261
1262                 if (IS_CNA_CAPABLE(ha)) {
1263                         ql_dbg(ql_dbg_async, vha, 0x500d,
1264                             "DCBX Completed -- %04x %04x %04x.\n",
1265                             mb[1], mb[2], mb[3]);
1266                         if (ha->notify_dcbx_comp && !vha->vp_idx)
1267                                 complete(&ha->dcbx_comp);
1268
1269                 } else
1270                         ql_dbg(ql_dbg_async, vha, 0x500e,
1271                             "Asynchronous P2P MODE received.\n");
1272
1273                 /*
1274                  * Until there's a transition from loop down to loop up, treat
1275                  * this as loop down only.
1276                  */
1277                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1278                         atomic_set(&vha->loop_state, LOOP_DOWN);
1279                         if (!atomic_read(&vha->loop_down_timer))
1280                                 atomic_set(&vha->loop_down_timer,
1281                                     LOOP_DOWN_TIME);
1282                         if (!N2N_TOPO(ha))
1283                                 qla2x00_mark_all_devices_lost(vha);
1284                 }
1285
1286                 if (vha->vp_idx) {
1287                         atomic_set(&vha->vp_state, VP_FAILED);
1288                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1289                 }
1290
1291                 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
1292                         set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1293
1294                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1295                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1296
1297                 vha->flags.management_server_logged_in = 0;
1298                 break;
1299
1300         case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
1301                 if (IS_QLA2100(ha))
1302                         break;
1303
1304                 ql_dbg(ql_dbg_async, vha, 0x500f,
1305                     "Configuration change detected: value=%x.\n", mb[1]);
1306
1307                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1308                         atomic_set(&vha->loop_state, LOOP_DOWN);
1309                         if (!atomic_read(&vha->loop_down_timer))
1310                                 atomic_set(&vha->loop_down_timer,
1311                                     LOOP_DOWN_TIME);
1312                         qla2x00_mark_all_devices_lost(vha);
1313                 }
1314
1315                 if (vha->vp_idx) {
1316                         atomic_set(&vha->vp_state, VP_FAILED);
1317                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1318                 }
1319
1320                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1321                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1322                 break;
1323
1324         case MBA_PORT_UPDATE:           /* Port database update */
1325                 /*
1326                  * Handle only global and vn-port update events
1327                  *
1328                  * Relevant inputs:
1329                  * mb[1] = N_Port handle of changed port
1330                  * OR 0xffff for global event
1331                  * mb[2] = New login state
1332                  * 7 = Port logged out
1333                  * mb[3] = LSB is vp_idx, 0xff = all vps
1334                  *
1335                  * Skip processing if:
1336                  *       Event is global, vp_idx is NOT all vps,
1337                  *           vp_idx does not match
1338                  *       Event is not global, vp_idx does not match
1339                  */
1340                 if (IS_QLA2XXX_MIDTYPE(ha) &&
1341                     ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
1342                         (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
1343                         break;
1344
1345                 if (mb[2] == 0x7) {
1346                         ql_dbg(ql_dbg_async, vha, 0x5010,
1347                             "Port %s %04x %04x %04x.\n",
1348                             mb[1] == 0xffff ? "unavailable" : "logout",
1349                             mb[1], mb[2], mb[3]);
1350
1351                         if (mb[1] == 0xffff)
1352                                 goto global_port_update;
1353
1354                         if (mb[1] == NPH_SNS_LID(ha)) {
1355                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1356                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1357                                 break;
1358                         }
1359
1360                         /* use handle_cnt for loop id/nport handle */
1361                         if (IS_FWI2_CAPABLE(ha))
1362                                 handle_cnt = NPH_SNS;
1363                         else
1364                                 handle_cnt = SIMPLE_NAME_SERVER;
1365                         if (mb[1] == handle_cnt) {
1366                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1367                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1368                                 break;
1369                         }
1370
1371                         /* Port logout */
1372                         fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1373                         if (!fcport)
1374                                 break;
1375                         if (atomic_read(&fcport->state) != FCS_ONLINE)
1376                                 break;
1377                         ql_dbg(ql_dbg_async, vha, 0x508a,
1378                             "Marking port lost loopid=%04x portid=%06x.\n",
1379                             fcport->loop_id, fcport->d_id.b24);
1380                         if (qla_ini_mode_enabled(vha)) {
1381                                 fcport->logout_on_delete = 0;
1382                                 qlt_schedule_sess_for_deletion(fcport);
1383                         }
1384                         break;
1385
1386 global_port_update:
1387                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1388                                 atomic_set(&vha->loop_state, LOOP_DOWN);
1389                                 atomic_set(&vha->loop_down_timer,
1390                                     LOOP_DOWN_TIME);
1391                                 vha->device_flags |= DFLG_NO_CABLE;
1392                                 qla2x00_mark_all_devices_lost(vha);
1393                         }
1394
1395                         if (vha->vp_idx) {
1396                                 atomic_set(&vha->vp_state, VP_FAILED);
1397                                 fc_vport_set_state(vha->fc_vport,
1398                                     FC_VPORT_FAILED);
1399                                 qla2x00_mark_all_devices_lost(vha);
1400                         }
1401
1402                         vha->flags.management_server_logged_in = 0;
1403                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1404                         break;
1405                 }
1406
1407                 /*
1408                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1409                  * event etc. earlier indicating loop is down) then process
1410                  * it.  Otherwise ignore it and Wait for RSCN to come in.
1411                  */
1412                 atomic_set(&vha->loop_down_timer, 0);
1413                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1414                         !ha->flags.n2n_ae  &&
1415                     atomic_read(&vha->loop_state) != LOOP_DEAD) {
1416                         ql_dbg(ql_dbg_async, vha, 0x5011,
1417                             "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1418                             mb[1], mb[2], mb[3]);
1419                         break;
1420                 }
1421
1422                 ql_dbg(ql_dbg_async, vha, 0x5012,
1423                     "Port database changed %04x %04x %04x.\n",
1424                     mb[1], mb[2], mb[3]);
1425
1426                 /*
1427                  * Mark all devices as missing so we will login again.
1428                  */
1429                 atomic_set(&vha->loop_state, LOOP_UP);
1430                 vha->scan.scan_retry = 0;
1431
1432                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1433                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1434                 set_bit(VP_CONFIG_OK, &vha->vp_flags);
1435                 break;
1436
1437         case MBA_RSCN_UPDATE:           /* State Change Registration */
1438                 /* Check if the Vport has issued a SCR */
1439                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1440                         break;
1441                 /* Only handle SCNs for our Vport index. */
1442                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1443                         break;
1444
1445                 ql_dbg(ql_dbg_async, vha, 0x5013,
1446                     "RSCN database changed -- %04x %04x %04x.\n",
1447                     mb[1], mb[2], mb[3]);
1448
1449                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1450                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1451                                 | vha->d_id.b.al_pa;
1452                 if (rscn_entry == host_pid) {
1453                         ql_dbg(ql_dbg_async, vha, 0x5014,
1454                             "Ignoring RSCN update to local host "
1455                             "port ID (%06x).\n", host_pid);
1456                         break;
1457                 }
1458
1459                 /* Ignore reserved bits from RSCN-payload. */
1460                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1461
1462                 /* Skip RSCNs for virtual ports on the same physical port */
1463                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1464                         break;
1465
1466                 atomic_set(&vha->loop_down_timer, 0);
1467                 vha->flags.management_server_logged_in = 0;
1468                 {
1469                         struct event_arg ea;
1470
1471                         memset(&ea, 0, sizeof(ea));
1472                         ea.id.b24 = rscn_entry;
1473                         ea.id.b.rsvd_1 = rscn_entry >> 24;
1474                         qla2x00_handle_rscn(vha, &ea);
1475                         qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1476                 }
1477                 break;
1478         case MBA_CONGN_NOTI_RECV:
1479                 if (!ha->flags.scm_enabled ||
1480                     mb[1] != QLA_CON_PRIMITIVE_RECEIVED)
1481                         break;
1482
1483                 if (mb[2] == QLA_CONGESTION_ARB_WARNING) {
1484                         ql_dbg(ql_dbg_async, vha, 0x509b,
1485                                "Congestion Warning %04x %04x.\n", mb[1], mb[2]);
1486                 } else if (mb[2] == QLA_CONGESTION_ARB_ALARM) {
1487                         ql_log(ql_log_warn, vha, 0x509b,
1488                                "Congestion Alarm %04x %04x.\n", mb[1], mb[2]);
1489                 }
1490                 break;
1491         /* case MBA_RIO_RESPONSE: */
1492         case MBA_ZIO_RESPONSE:
1493                 ql_dbg(ql_dbg_async, vha, 0x5015,
1494                     "[R|Z]IO update completion.\n");
1495
1496                 if (IS_FWI2_CAPABLE(ha))
1497                         qla24xx_process_response_queue(vha, rsp);
1498                 else
1499                         qla2x00_process_response_queue(rsp);
1500                 break;
1501
1502         case MBA_DISCARD_RND_FRAME:
1503                 ql_dbg(ql_dbg_async, vha, 0x5016,
1504                     "Discard RND Frame -- %04x %04x %04x.\n",
1505                     mb[1], mb[2], mb[3]);
1506                 break;
1507
1508         case MBA_TRACE_NOTIFICATION:
1509                 ql_dbg(ql_dbg_async, vha, 0x5017,
1510                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1511                 break;
1512
1513         case MBA_ISP84XX_ALERT:
1514                 ql_dbg(ql_dbg_async, vha, 0x5018,
1515                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1516                     mb[1], mb[2], mb[3]);
1517
1518                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1519                 switch (mb[1]) {
1520                 case A84_PANIC_RECOVERY:
1521                         ql_log(ql_log_info, vha, 0x5019,
1522                             "Alert 84XX: panic recovery %04x %04x.\n",
1523                             mb[2], mb[3]);
1524                         break;
1525                 case A84_OP_LOGIN_COMPLETE:
1526                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1527                         ql_log(ql_log_info, vha, 0x501a,
1528                             "Alert 84XX: firmware version %x.\n",
1529                             ha->cs84xx->op_fw_version);
1530                         break;
1531                 case A84_DIAG_LOGIN_COMPLETE:
1532                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1533                         ql_log(ql_log_info, vha, 0x501b,
1534                             "Alert 84XX: diagnostic firmware version %x.\n",
1535                             ha->cs84xx->diag_fw_version);
1536                         break;
1537                 case A84_GOLD_LOGIN_COMPLETE:
1538                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1539                         ha->cs84xx->fw_update = 1;
1540                         ql_log(ql_log_info, vha, 0x501c,
1541                             "Alert 84XX: gold firmware version %x.\n",
1542                             ha->cs84xx->gold_fw_version);
1543                         break;
1544                 default:
1545                         ql_log(ql_log_warn, vha, 0x501d,
1546                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1547                             mb[1], mb[2], mb[3]);
1548                 }
1549                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1550                 break;
1551         case MBA_DCBX_START:
1552                 ql_dbg(ql_dbg_async, vha, 0x501e,
1553                     "DCBX Started -- %04x %04x %04x.\n",
1554                     mb[1], mb[2], mb[3]);
1555                 break;
1556         case MBA_DCBX_PARAM_UPDATE:
1557                 ql_dbg(ql_dbg_async, vha, 0x501f,
1558                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1559                     mb[1], mb[2], mb[3]);
1560                 break;
1561         case MBA_FCF_CONF_ERR:
1562                 ql_dbg(ql_dbg_async, vha, 0x5020,
1563                     "FCF Configuration Error -- %04x %04x %04x.\n",
1564                     mb[1], mb[2], mb[3]);
1565                 break;
1566         case MBA_IDC_NOTIFY:
1567                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1568                         mb[4] = rd_reg_word(&reg24->mailbox4);
1569                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1570                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1571                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1572                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1573                                 /*
1574                                  * Extend loop down timer since port is active.
1575                                  */
1576                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1577                                         atomic_set(&vha->loop_down_timer,
1578                                             LOOP_DOWN_TIME);
1579                                 qla2xxx_wake_dpc(vha);
1580                         }
1581                 }
1582                 fallthrough;
1583         case MBA_IDC_COMPLETE:
1584                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1585                         complete(&ha->lb_portup_comp);
1586                 fallthrough;
1587         case MBA_IDC_TIME_EXT:
1588                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1589                     IS_QLA8044(ha))
1590                         qla81xx_idc_event(vha, mb[0], mb[1]);
1591                 break;
1592
1593         case MBA_IDC_AEN:
1594                 if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1595                         qla27xx_handle_8200_aen(vha, mb);
1596                 } else if (IS_QLA83XX(ha)) {
1597                         mb[4] = rd_reg_word(&reg24->mailbox4);
1598                         mb[5] = rd_reg_word(&reg24->mailbox5);
1599                         mb[6] = rd_reg_word(&reg24->mailbox6);
1600                         mb[7] = rd_reg_word(&reg24->mailbox7);
1601                         qla83xx_handle_8200_aen(vha, mb);
1602                 } else {
1603                         ql_dbg(ql_dbg_async, vha, 0x5052,
1604                             "skip Heartbeat processing mb0-3=[0x%04x] [0x%04x] [0x%04x] [0x%04x]\n",
1605                             mb[0], mb[1], mb[2], mb[3]);
1606                 }
1607                 break;
1608
1609         case MBA_DPORT_DIAGNOSTICS:
1610                 ql_dbg(ql_dbg_async, vha, 0x5052,
1611                     "D-Port Diagnostics: %04x %04x %04x %04x\n",
1612                     mb[0], mb[1], mb[2], mb[3]);
1613                 memcpy(vha->dport_data, mb, sizeof(vha->dport_data));
1614                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1615                         static char *results[] = {
1616                             "start", "done(pass)", "done(error)", "undefined" };
1617                         static char *types[] = {
1618                             "none", "dynamic", "static", "other" };
1619                         uint result = mb[1] >> 0 & 0x3;
1620                         uint type = mb[1] >> 6 & 0x3;
1621                         uint sw = mb[1] >> 15 & 0x1;
1622                         ql_dbg(ql_dbg_async, vha, 0x5052,
1623                             "D-Port Diagnostics: result=%s type=%s [sw=%u]\n",
1624                             results[result], types[type], sw);
1625                         if (result == 2) {
1626                                 static char *reasons[] = {
1627                                     "reserved", "unexpected reject",
1628                                     "unexpected phase", "retry exceeded",
1629                                     "timed out", "not supported",
1630                                     "user stopped" };
1631                                 uint reason = mb[2] >> 0 & 0xf;
1632                                 uint phase = mb[2] >> 12 & 0xf;
1633                                 ql_dbg(ql_dbg_async, vha, 0x5052,
1634                                     "D-Port Diagnostics: reason=%s phase=%u \n",
1635                                     reason < 7 ? reasons[reason] : "other",
1636                                     phase >> 1);
1637                         }
1638                 }
1639                 break;
1640
1641         case MBA_TEMPERATURE_ALERT:
1642                 ql_dbg(ql_dbg_async, vha, 0x505e,
1643                     "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1644                 if (mb[1] == 0x12)
1645                         schedule_work(&ha->board_disable);
1646                 break;
1647
1648         case MBA_TRANS_INSERT:
1649                 ql_dbg(ql_dbg_async, vha, 0x5091,
1650                     "Transceiver Insertion: %04x\n", mb[1]);
1651                 set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
1652                 break;
1653
1654         case MBA_TRANS_REMOVE:
1655                 ql_dbg(ql_dbg_async, vha, 0x5091, "Transceiver Removal\n");
1656                 break;
1657
1658         default:
1659                 ql_dbg(ql_dbg_async, vha, 0x5057,
1660                     "Unknown AEN:%04x %04x %04x %04x\n",
1661                     mb[0], mb[1], mb[2], mb[3]);
1662         }
1663
1664         qlt_async_event(mb[0], vha, mb);
1665
1666         if (!vha->vp_idx && ha->num_vhosts)
1667                 qla2x00_alert_all_vps(rsp, mb);
1668 }
1669
1670 /**
1671  * qla2x00_process_completed_request() - Process a Fast Post response.
1672  * @vha: SCSI driver HA context
1673  * @req: request queue
1674  * @index: SRB index
1675  */
1676 void
1677 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1678                                   struct req_que *req, uint32_t index)
1679 {
1680         srb_t *sp;
1681         struct qla_hw_data *ha = vha->hw;
1682
1683         /* Validate handle. */
1684         if (index >= req->num_outstanding_cmds) {
1685                 ql_log(ql_log_warn, vha, 0x3014,
1686                     "Invalid SCSI command index (%x).\n", index);
1687
1688                 if (IS_P3P_TYPE(ha))
1689                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1690                 else
1691                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1692                 return;
1693         }
1694
1695         sp = req->outstanding_cmds[index];
1696         if (sp) {
1697                 /* Free outstanding command slot. */
1698                 req->outstanding_cmds[index] = NULL;
1699
1700                 /* Save ISP completion status */
1701                 sp->done(sp, DID_OK << 16);
1702         } else {
1703                 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1704
1705                 if (IS_P3P_TYPE(ha))
1706                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1707                 else
1708                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1709         }
1710 }
1711
1712 srb_t *
1713 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1714     struct req_que *req, void *iocb)
1715 {
1716         struct qla_hw_data *ha = vha->hw;
1717         sts_entry_t *pkt = iocb;
1718         srb_t *sp;
1719         uint16_t index;
1720
1721         index = LSW(pkt->handle);
1722         if (index >= req->num_outstanding_cmds) {
1723                 ql_log(ql_log_warn, vha, 0x5031,
1724                            "%s: Invalid command index (%x) type %8ph.\n",
1725                            func, index, iocb);
1726                 if (IS_P3P_TYPE(ha))
1727                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1728                 else
1729                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1730                 return NULL;
1731         }
1732         sp = req->outstanding_cmds[index];
1733         if (!sp) {
1734                 ql_log(ql_log_warn, vha, 0x5032,
1735                         "%s: Invalid completion handle (%x) -- timed-out.\n",
1736                         func, index);
1737                 return NULL;
1738         }
1739         if (sp->handle != index) {
1740                 ql_log(ql_log_warn, vha, 0x5033,
1741                         "%s: SRB handle (%x) mismatch %x.\n", func,
1742                         sp->handle, index);
1743                 return NULL;
1744         }
1745
1746         req->outstanding_cmds[index] = NULL;
1747         return sp;
1748 }
1749
1750 static void
1751 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1752     struct mbx_entry *mbx)
1753 {
1754         const char func[] = "MBX-IOCB";
1755         const char *type;
1756         fc_port_t *fcport;
1757         srb_t *sp;
1758         struct srb_iocb *lio;
1759         uint16_t *data;
1760         uint16_t status;
1761
1762         sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1763         if (!sp)
1764                 return;
1765
1766         lio = &sp->u.iocb_cmd;
1767         type = sp->name;
1768         fcport = sp->fcport;
1769         data = lio->u.logio.data;
1770
1771         data[0] = MBS_COMMAND_ERROR;
1772         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1773             QLA_LOGIO_LOGIN_RETRIED : 0;
1774         if (mbx->entry_status) {
1775                 ql_dbg(ql_dbg_async, vha, 0x5043,
1776                     "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1777                     "entry-status=%x status=%x state-flag=%x "
1778                     "status-flags=%x.\n", type, sp->handle,
1779                     fcport->d_id.b.domain, fcport->d_id.b.area,
1780                     fcport->d_id.b.al_pa, mbx->entry_status,
1781                     le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1782                     le16_to_cpu(mbx->status_flags));
1783
1784                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1785                     mbx, sizeof(*mbx));
1786
1787                 goto logio_done;
1788         }
1789
1790         status = le16_to_cpu(mbx->status);
1791         if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1792             le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1793                 status = 0;
1794         if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1795                 ql_dbg(ql_dbg_async, vha, 0x5045,
1796                     "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1797                     type, sp->handle, fcport->d_id.b.domain,
1798                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1799                     le16_to_cpu(mbx->mb1));
1800
1801                 data[0] = MBS_COMMAND_COMPLETE;
1802                 if (sp->type == SRB_LOGIN_CMD) {
1803                         fcport->port_type = FCT_TARGET;
1804                         if (le16_to_cpu(mbx->mb1) & BIT_0)
1805                                 fcport->port_type = FCT_INITIATOR;
1806                         else if (le16_to_cpu(mbx->mb1) & BIT_1)
1807                                 fcport->flags |= FCF_FCP2_DEVICE;
1808                 }
1809                 goto logio_done;
1810         }
1811
1812         data[0] = le16_to_cpu(mbx->mb0);
1813         switch (data[0]) {
1814         case MBS_PORT_ID_USED:
1815                 data[1] = le16_to_cpu(mbx->mb1);
1816                 break;
1817         case MBS_LOOP_ID_USED:
1818                 break;
1819         default:
1820                 data[0] = MBS_COMMAND_ERROR;
1821                 break;
1822         }
1823
1824         ql_log(ql_log_warn, vha, 0x5046,
1825             "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1826             "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1827             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1828             status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1829             le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1830             le16_to_cpu(mbx->mb7));
1831
1832 logio_done:
1833         sp->done(sp, 0);
1834 }
1835
1836 static void
1837 qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1838     struct mbx_24xx_entry *pkt)
1839 {
1840         const char func[] = "MBX-IOCB2";
1841         srb_t *sp;
1842         struct srb_iocb *si;
1843         u16 sz, i;
1844         int res;
1845
1846         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1847         if (!sp)
1848                 return;
1849
1850         si = &sp->u.iocb_cmd;
1851         sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
1852
1853         for (i = 0; i < sz; i++)
1854                 si->u.mbx.in_mb[i] = pkt->mb[i];
1855
1856         res = (si->u.mbx.in_mb[0] & MBS_MASK);
1857
1858         sp->done(sp, res);
1859 }
1860
1861 static void
1862 qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1863     struct nack_to_isp *pkt)
1864 {
1865         const char func[] = "nack";
1866         srb_t *sp;
1867         int res = 0;
1868
1869         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1870         if (!sp)
1871                 return;
1872
1873         if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
1874                 res = QLA_FUNCTION_FAILED;
1875
1876         sp->done(sp, res);
1877 }
1878
1879 static void
1880 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1881     sts_entry_t *pkt, int iocb_type)
1882 {
1883         const char func[] = "CT_IOCB";
1884         const char *type;
1885         srb_t *sp;
1886         struct bsg_job *bsg_job;
1887         struct fc_bsg_reply *bsg_reply;
1888         uint16_t comp_status;
1889         int res = 0;
1890
1891         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1892         if (!sp)
1893                 return;
1894
1895         switch (sp->type) {
1896         case SRB_CT_CMD:
1897             bsg_job = sp->u.bsg_job;
1898             bsg_reply = bsg_job->reply;
1899
1900             type = "ct pass-through";
1901
1902             comp_status = le16_to_cpu(pkt->comp_status);
1903
1904             /*
1905              * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1906              * fc payload  to the caller
1907              */
1908             bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1909             bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1910
1911             if (comp_status != CS_COMPLETE) {
1912                     if (comp_status == CS_DATA_UNDERRUN) {
1913                             res = DID_OK << 16;
1914                             bsg_reply->reply_payload_rcv_len =
1915                                 le16_to_cpu(pkt->rsp_info_len);
1916
1917                             ql_log(ql_log_warn, vha, 0x5048,
1918                                 "CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
1919                                 type, comp_status,
1920                                 bsg_reply->reply_payload_rcv_len);
1921                     } else {
1922                             ql_log(ql_log_warn, vha, 0x5049,
1923                                 "CT pass-through-%s error comp_status=0x%x.\n",
1924                                 type, comp_status);
1925                             res = DID_ERROR << 16;
1926                             bsg_reply->reply_payload_rcv_len = 0;
1927                     }
1928                     ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1929                         pkt, sizeof(*pkt));
1930             } else {
1931                     res = DID_OK << 16;
1932                     bsg_reply->reply_payload_rcv_len =
1933                         bsg_job->reply_payload.payload_len;
1934                     bsg_job->reply_len = 0;
1935             }
1936             break;
1937         case SRB_CT_PTHRU_CMD:
1938             /*
1939              * borrowing sts_entry_24xx.comp_status.
1940              * same location as ct_entry_24xx.comp_status
1941              */
1942              res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
1943                  (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1944                  sp->name);
1945              break;
1946         }
1947
1948         sp->done(sp, res);
1949 }
1950
1951 static void
1952 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1953     struct sts_entry_24xx *pkt, int iocb_type)
1954 {
1955         struct els_sts_entry_24xx *ese = (struct els_sts_entry_24xx *)pkt;
1956         const char func[] = "ELS_CT_IOCB";
1957         const char *type;
1958         srb_t *sp;
1959         struct bsg_job *bsg_job;
1960         struct fc_bsg_reply *bsg_reply;
1961         uint16_t comp_status;
1962         uint32_t fw_status[3];
1963         int res;
1964         struct srb_iocb *els;
1965
1966         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1967         if (!sp)
1968                 return;
1969
1970         type = NULL;
1971         switch (sp->type) {
1972         case SRB_ELS_CMD_RPT:
1973         case SRB_ELS_CMD_HST:
1974                 type = "els";
1975                 break;
1976         case SRB_CT_CMD:
1977                 type = "ct pass-through";
1978                 break;
1979         case SRB_ELS_DCMD:
1980                 type = "Driver ELS logo";
1981                 if (iocb_type != ELS_IOCB_TYPE) {
1982                         ql_dbg(ql_dbg_user, vha, 0x5047,
1983                             "Completing %s: (%p) type=%d.\n",
1984                             type, sp, sp->type);
1985                         sp->done(sp, 0);
1986                         return;
1987                 }
1988                 break;
1989         case SRB_CT_PTHRU_CMD:
1990                 /* borrowing sts_entry_24xx.comp_status.
1991                    same location as ct_entry_24xx.comp_status
1992                  */
1993                 res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
1994                         (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1995                         sp->name);
1996                 sp->done(sp, res);
1997                 return;
1998         default:
1999                 ql_dbg(ql_dbg_user, vha, 0x503e,
2000                     "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
2001                 return;
2002         }
2003
2004         comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
2005         fw_status[1] = le32_to_cpu(ese->error_subcode_1);
2006         fw_status[2] = le32_to_cpu(ese->error_subcode_2);
2007
2008         if (iocb_type == ELS_IOCB_TYPE) {
2009                 els = &sp->u.iocb_cmd;
2010                 els->u.els_plogi.fw_status[0] = cpu_to_le32(fw_status[0]);
2011                 els->u.els_plogi.fw_status[1] = cpu_to_le32(fw_status[1]);
2012                 els->u.els_plogi.fw_status[2] = cpu_to_le32(fw_status[2]);
2013                 els->u.els_plogi.comp_status = cpu_to_le16(fw_status[0]);
2014                 if (comp_status == CS_COMPLETE) {
2015                         res =  DID_OK << 16;
2016                 } else {
2017                         if (comp_status == CS_DATA_UNDERRUN) {
2018                                 res =  DID_OK << 16;
2019                                 els->u.els_plogi.len = cpu_to_le16(le32_to_cpu(
2020                                         ese->total_byte_count));
2021                         } else {
2022                                 els->u.els_plogi.len = 0;
2023                                 res = DID_ERROR << 16;
2024                         }
2025                 }
2026                 ql_dbg(ql_dbg_disc, vha, 0x503f,
2027                     "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",
2028                     type, sp->handle, comp_status, fw_status[1], fw_status[2],
2029                     le32_to_cpu(ese->total_byte_count));
2030                 goto els_ct_done;
2031         }
2032
2033         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
2034          * fc payload  to the caller
2035          */
2036         bsg_job = sp->u.bsg_job;
2037         bsg_reply = bsg_job->reply;
2038         bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
2039         bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
2040
2041         if (comp_status != CS_COMPLETE) {
2042                 if (comp_status == CS_DATA_UNDERRUN) {
2043                         res = DID_OK << 16;
2044                         bsg_reply->reply_payload_rcv_len =
2045                                 le32_to_cpu(ese->total_byte_count);
2046
2047                         ql_dbg(ql_dbg_user, vha, 0x503f,
2048                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2049                             "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                 } else {
2053                         ql_dbg(ql_dbg_user, vha, 0x5040,
2054                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2055                             "error subcode 1=0x%x error subcode 2=0x%x.\n",
2056                             type, sp->handle, comp_status,
2057                             le32_to_cpu(ese->error_subcode_1),
2058                             le32_to_cpu(ese->error_subcode_2));
2059                         res = DID_ERROR << 16;
2060                         bsg_reply->reply_payload_rcv_len = 0;
2061                 }
2062                 memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
2063                        fw_status, sizeof(fw_status));
2064                 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
2065                     pkt, sizeof(*pkt));
2066         }
2067         else {
2068                 res =  DID_OK << 16;
2069                 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
2070                 bsg_job->reply_len = 0;
2071         }
2072 els_ct_done:
2073
2074         sp->done(sp, res);
2075 }
2076
2077 static void
2078 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
2079     struct logio_entry_24xx *logio)
2080 {
2081         const char func[] = "LOGIO-IOCB";
2082         const char *type;
2083         fc_port_t *fcport;
2084         srb_t *sp;
2085         struct srb_iocb *lio;
2086         uint16_t *data;
2087         uint32_t iop[2];
2088
2089         sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
2090         if (!sp)
2091                 return;
2092
2093         lio = &sp->u.iocb_cmd;
2094         type = sp->name;
2095         fcport = sp->fcport;
2096         data = lio->u.logio.data;
2097
2098         data[0] = MBS_COMMAND_ERROR;
2099         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
2100                 QLA_LOGIO_LOGIN_RETRIED : 0;
2101         if (logio->entry_status) {
2102                 ql_log(ql_log_warn, fcport->vha, 0x5034,
2103                     "Async-%s error entry - %8phC hdl=%x"
2104                     "portid=%02x%02x%02x entry-status=%x.\n",
2105                     type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
2106                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
2107                     logio->entry_status);
2108                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
2109                     logio, sizeof(*logio));
2110
2111                 goto logio_done;
2112         }
2113
2114         if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
2115                 ql_dbg(ql_dbg_async, sp->vha, 0x5036,
2116                     "Async-%s complete: handle=%x pid=%06x wwpn=%8phC iop0=%x\n",
2117                     type, sp->handle, fcport->d_id.b24, fcport->port_name,
2118                     le32_to_cpu(logio->io_parameter[0]));
2119
2120                 vha->hw->exch_starvation = 0;
2121                 data[0] = MBS_COMMAND_COMPLETE;
2122
2123                 if (sp->type == SRB_PRLI_CMD) {
2124                         lio->u.logio.iop[0] =
2125                             le32_to_cpu(logio->io_parameter[0]);
2126                         lio->u.logio.iop[1] =
2127                             le32_to_cpu(logio->io_parameter[1]);
2128                         goto logio_done;
2129                 }
2130
2131                 if (sp->type != SRB_LOGIN_CMD)
2132                         goto logio_done;
2133
2134                 iop[0] = le32_to_cpu(logio->io_parameter[0]);
2135                 if (iop[0] & BIT_4) {
2136                         fcport->port_type = FCT_TARGET;
2137                         if (iop[0] & BIT_8)
2138                                 fcport->flags |= FCF_FCP2_DEVICE;
2139                 } else if (iop[0] & BIT_5)
2140                         fcport->port_type = FCT_INITIATOR;
2141
2142                 if (iop[0] & BIT_7)
2143                         fcport->flags |= FCF_CONF_COMP_SUPPORTED;
2144
2145                 if (logio->io_parameter[7] || logio->io_parameter[8])
2146                         fcport->supported_classes |= FC_COS_CLASS2;
2147                 if (logio->io_parameter[9] || logio->io_parameter[10])
2148                         fcport->supported_classes |= FC_COS_CLASS3;
2149
2150                 goto logio_done;
2151         }
2152
2153         iop[0] = le32_to_cpu(logio->io_parameter[0]);
2154         iop[1] = le32_to_cpu(logio->io_parameter[1]);
2155         lio->u.logio.iop[0] = iop[0];
2156         lio->u.logio.iop[1] = iop[1];
2157         switch (iop[0]) {
2158         case LSC_SCODE_PORTID_USED:
2159                 data[0] = MBS_PORT_ID_USED;
2160                 data[1] = LSW(iop[1]);
2161                 break;
2162         case LSC_SCODE_NPORT_USED:
2163                 data[0] = MBS_LOOP_ID_USED;
2164                 break;
2165         case LSC_SCODE_CMD_FAILED:
2166                 if (iop[1] == 0x0606) {
2167                         /*
2168                          * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
2169                          * Target side acked.
2170                          */
2171                         data[0] = MBS_COMMAND_COMPLETE;
2172                         goto logio_done;
2173                 }
2174                 data[0] = MBS_COMMAND_ERROR;
2175                 break;
2176         case LSC_SCODE_NOXCB:
2177                 vha->hw->exch_starvation++;
2178                 if (vha->hw->exch_starvation > 5) {
2179                         ql_log(ql_log_warn, vha, 0xd046,
2180                             "Exchange starvation. Resetting RISC\n");
2181
2182                         vha->hw->exch_starvation = 0;
2183
2184                         if (IS_P3P_TYPE(vha->hw))
2185                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2186                         else
2187                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2188                         qla2xxx_wake_dpc(vha);
2189                 }
2190                 fallthrough;
2191         default:
2192                 data[0] = MBS_COMMAND_ERROR;
2193                 break;
2194         }
2195
2196         ql_dbg(ql_dbg_async, sp->vha, 0x5037,
2197             "Async-%s failed: handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
2198             type, sp->handle, fcport->d_id.b24, fcport->port_name,
2199             le16_to_cpu(logio->comp_status),
2200             le32_to_cpu(logio->io_parameter[0]),
2201             le32_to_cpu(logio->io_parameter[1]));
2202
2203 logio_done:
2204         sp->done(sp, 0);
2205 }
2206
2207 static void
2208 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
2209 {
2210         const char func[] = "TMF-IOCB";
2211         const char *type;
2212         fc_port_t *fcport;
2213         srb_t *sp;
2214         struct srb_iocb *iocb;
2215         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2216
2217         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
2218         if (!sp)
2219                 return;
2220
2221         iocb = &sp->u.iocb_cmd;
2222         type = sp->name;
2223         fcport = sp->fcport;
2224         iocb->u.tmf.data = QLA_SUCCESS;
2225
2226         if (sts->entry_status) {
2227                 ql_log(ql_log_warn, fcport->vha, 0x5038,
2228                     "Async-%s error - hdl=%x entry-status(%x).\n",
2229                     type, sp->handle, sts->entry_status);
2230                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2231         } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
2232                 ql_log(ql_log_warn, fcport->vha, 0x5039,
2233                     "Async-%s error - hdl=%x completion status(%x).\n",
2234                     type, sp->handle, sts->comp_status);
2235                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2236         } else if ((le16_to_cpu(sts->scsi_status) &
2237             SS_RESPONSE_INFO_LEN_VALID)) {
2238                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
2239                         ql_log(ql_log_warn, fcport->vha, 0x503b,
2240                             "Async-%s error - hdl=%x not enough response(%d).\n",
2241                             type, sp->handle, sts->rsp_data_len);
2242                 } else if (sts->data[3]) {
2243                         ql_log(ql_log_warn, fcport->vha, 0x503c,
2244                             "Async-%s error - hdl=%x response(%x).\n",
2245                             type, sp->handle, sts->data[3]);
2246                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2247                 }
2248         }
2249
2250         if (iocb->u.tmf.data != QLA_SUCCESS)
2251                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, sp->vha, 0x5055,
2252                     sts, sizeof(*sts));
2253
2254         sp->done(sp, 0);
2255 }
2256
2257 static void qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2258     void *tsk, srb_t *sp)
2259 {
2260         fc_port_t *fcport;
2261         struct srb_iocb *iocb;
2262         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2263         uint16_t        state_flags;
2264         struct nvmefc_fcp_req *fd;
2265         uint16_t        ret = QLA_SUCCESS;
2266         __le16          comp_status = sts->comp_status;
2267         int             logit = 0;
2268
2269         iocb = &sp->u.iocb_cmd;
2270         fcport = sp->fcport;
2271         iocb->u.nvme.comp_status = comp_status;
2272         state_flags  = le16_to_cpu(sts->state_flags);
2273         fd = iocb->u.nvme.desc;
2274
2275         if (unlikely(iocb->u.nvme.aen_op))
2276                 atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
2277
2278         if (unlikely(comp_status != CS_COMPLETE))
2279                 logit = 1;
2280
2281         fd->transferred_length = fd->payload_length -
2282             le32_to_cpu(sts->residual_len);
2283
2284         /*
2285          * State flags: Bit 6 and 0.
2286          * If 0 is set, we don't care about 6.
2287          * both cases resp was dma'd to host buffer
2288          * if both are 0, that is good path case.
2289          * if six is set and 0 is clear, we need to
2290          * copy resp data from status iocb to resp buffer.
2291          */
2292         if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
2293                 iocb->u.nvme.rsp_pyld_len = 0;
2294         } else if ((state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP)) ==
2295                         (SF_FCP_RSP_DMA | SF_NVME_ERSP)) {
2296                 /* Response already DMA'd to fd->rspaddr. */
2297                 iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2298         } else if ((state_flags & SF_FCP_RSP_DMA)) {
2299                 /*
2300                  * Non-zero value in first 12 bytes of NVMe_RSP IU, treat this
2301                  * as an error.
2302                  */
2303                 iocb->u.nvme.rsp_pyld_len = 0;
2304                 fd->transferred_length = 0;
2305                 ql_dbg(ql_dbg_io, fcport->vha, 0x307a,
2306                         "Unexpected values in NVMe_RSP IU.\n");
2307                 logit = 1;
2308         } else if (state_flags & SF_NVME_ERSP) {
2309                 uint32_t *inbuf, *outbuf;
2310                 uint16_t iter;
2311
2312                 inbuf = (uint32_t *)&sts->nvme_ersp_data;
2313                 outbuf = (uint32_t *)fd->rspaddr;
2314                 iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2315                 if (unlikely(le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >
2316                     sizeof(struct nvme_fc_ersp_iu))) {
2317                         if (ql_mask_match(ql_dbg_io)) {
2318                                 WARN_ONCE(1, "Unexpected response payload length %u.\n",
2319                                     iocb->u.nvme.rsp_pyld_len);
2320                                 ql_log(ql_log_warn, fcport->vha, 0x5100,
2321                                     "Unexpected response payload length %u.\n",
2322                                     iocb->u.nvme.rsp_pyld_len);
2323                         }
2324                         iocb->u.nvme.rsp_pyld_len =
2325                                 cpu_to_le16(sizeof(struct nvme_fc_ersp_iu));
2326                 }
2327                 iter = le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >> 2;
2328                 for (; iter; iter--)
2329                         *outbuf++ = swab32(*inbuf++);
2330         }
2331
2332         if (state_flags & SF_NVME_ERSP) {
2333                 struct nvme_fc_ersp_iu *rsp_iu = fd->rspaddr;
2334                 u32 tgt_xfer_len;
2335
2336                 tgt_xfer_len = be32_to_cpu(rsp_iu->xfrd_len);
2337                 if (fd->transferred_length != tgt_xfer_len) {
2338                         ql_dbg(ql_dbg_io, fcport->vha, 0x3079,
2339                                 "Dropped frame(s) detected (sent/rcvd=%u/%u).\n",
2340                                 tgt_xfer_len, fd->transferred_length);
2341                         logit = 1;
2342                 } else if (le16_to_cpu(comp_status) == CS_DATA_UNDERRUN) {
2343                         /*
2344                          * Do not log if this is just an underflow and there
2345                          * is no data loss.
2346                          */
2347                         logit = 0;
2348                 }
2349         }
2350
2351         if (unlikely(logit))
2352                 ql_log(ql_log_warn, fcport->vha, 0x5060,
2353                    "NVME-%s ERR Handling - hdl=%x status(%x) tr_len:%x resid=%x  ox_id=%x\n",
2354                    sp->name, sp->handle, comp_status,
2355                    fd->transferred_length, le32_to_cpu(sts->residual_len),
2356                    sts->ox_id);
2357
2358         /*
2359          * If transport error then Failure (HBA rejects request)
2360          * otherwise transport will handle.
2361          */
2362         switch (le16_to_cpu(comp_status)) {
2363         case CS_COMPLETE:
2364                 break;
2365
2366         case CS_RESET:
2367         case CS_PORT_UNAVAILABLE:
2368         case CS_PORT_LOGGED_OUT:
2369                 fcport->nvme_flag |= NVME_FLAG_RESETTING;
2370                 fallthrough;
2371         case CS_ABORTED:
2372         case CS_PORT_BUSY:
2373                 fd->transferred_length = 0;
2374                 iocb->u.nvme.rsp_pyld_len = 0;
2375                 ret = QLA_ABORTED;
2376                 break;
2377         case CS_DATA_UNDERRUN:
2378                 break;
2379         default:
2380                 ret = QLA_FUNCTION_FAILED;
2381                 break;
2382         }
2383         sp->done(sp, ret);
2384 }
2385
2386 static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
2387     struct vp_ctrl_entry_24xx *vce)
2388 {
2389         const char func[] = "CTRLVP-IOCB";
2390         srb_t *sp;
2391         int rval = QLA_SUCCESS;
2392
2393         sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
2394         if (!sp)
2395                 return;
2396
2397         if (vce->entry_status != 0) {
2398                 ql_dbg(ql_dbg_vport, vha, 0x10c4,
2399                     "%s: Failed to complete IOCB -- error status (%x)\n",
2400                     sp->name, vce->entry_status);
2401                 rval = QLA_FUNCTION_FAILED;
2402         } else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
2403                 ql_dbg(ql_dbg_vport, vha, 0x10c5,
2404                     "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
2405                     sp->name, le16_to_cpu(vce->comp_status),
2406                     le16_to_cpu(vce->vp_idx_failed));
2407                 rval = QLA_FUNCTION_FAILED;
2408         } else {
2409                 ql_dbg(ql_dbg_vport, vha, 0x10c6,
2410                     "Done %s.\n", __func__);
2411         }
2412
2413         sp->rc = rval;
2414         sp->done(sp, rval);
2415 }
2416
2417 /* Process a single response queue entry. */
2418 static void qla2x00_process_response_entry(struct scsi_qla_host *vha,
2419                                            struct rsp_que *rsp,
2420                                            sts_entry_t *pkt)
2421 {
2422         sts21_entry_t *sts21_entry;
2423         sts22_entry_t *sts22_entry;
2424         uint16_t handle_cnt;
2425         uint16_t cnt;
2426
2427         switch (pkt->entry_type) {
2428         case STATUS_TYPE:
2429                 qla2x00_status_entry(vha, rsp, pkt);
2430                 break;
2431         case STATUS_TYPE_21:
2432                 sts21_entry = (sts21_entry_t *)pkt;
2433                 handle_cnt = sts21_entry->handle_count;
2434                 for (cnt = 0; cnt < handle_cnt; cnt++)
2435                         qla2x00_process_completed_request(vha, rsp->req,
2436                                                 sts21_entry->handle[cnt]);
2437                 break;
2438         case STATUS_TYPE_22:
2439                 sts22_entry = (sts22_entry_t *)pkt;
2440                 handle_cnt = sts22_entry->handle_count;
2441                 for (cnt = 0; cnt < handle_cnt; cnt++)
2442                         qla2x00_process_completed_request(vha, rsp->req,
2443                                                 sts22_entry->handle[cnt]);
2444                 break;
2445         case STATUS_CONT_TYPE:
2446                 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2447                 break;
2448         case MBX_IOCB_TYPE:
2449                 qla2x00_mbx_iocb_entry(vha, rsp->req, (struct mbx_entry *)pkt);
2450                 break;
2451         case CT_IOCB_TYPE:
2452                 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2453                 break;
2454         default:
2455                 /* Type Not Supported. */
2456                 ql_log(ql_log_warn, vha, 0x504a,
2457                        "Received unknown response pkt type %x entry status=%x.\n",
2458                        pkt->entry_type, pkt->entry_status);
2459                 break;
2460         }
2461 }
2462
2463 /**
2464  * qla2x00_process_response_queue() - Process response queue entries.
2465  * @rsp: response queue
2466  */
2467 void
2468 qla2x00_process_response_queue(struct rsp_que *rsp)
2469 {
2470         struct scsi_qla_host *vha;
2471         struct qla_hw_data *ha = rsp->hw;
2472         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2473         sts_entry_t     *pkt;
2474
2475         vha = pci_get_drvdata(ha->pdev);
2476
2477         if (!vha->flags.online)
2478                 return;
2479
2480         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2481                 pkt = (sts_entry_t *)rsp->ring_ptr;
2482
2483                 rsp->ring_index++;
2484                 if (rsp->ring_index == rsp->length) {
2485                         rsp->ring_index = 0;
2486                         rsp->ring_ptr = rsp->ring;
2487                 } else {
2488                         rsp->ring_ptr++;
2489                 }
2490
2491                 if (pkt->entry_status != 0) {
2492                         qla2x00_error_entry(vha, rsp, pkt);
2493                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2494                         wmb();
2495                         continue;
2496                 }
2497
2498                 qla2x00_process_response_entry(vha, rsp, pkt);
2499                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2500                 wmb();
2501         }
2502
2503         /* Adjust ring index */
2504         wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
2505 }
2506
2507 static inline void
2508 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2509                      uint32_t sense_len, struct rsp_que *rsp, int res)
2510 {
2511         struct scsi_qla_host *vha = sp->vha;
2512         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2513         uint32_t track_sense_len;
2514
2515         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2516                 sense_len = SCSI_SENSE_BUFFERSIZE;
2517
2518         SET_CMD_SENSE_LEN(sp, sense_len);
2519         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2520         track_sense_len = sense_len;
2521
2522         if (sense_len > par_sense_len)
2523                 sense_len = par_sense_len;
2524
2525         memcpy(cp->sense_buffer, sense_data, sense_len);
2526
2527         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2528         track_sense_len -= sense_len;
2529         SET_CMD_SENSE_LEN(sp, track_sense_len);
2530
2531         if (track_sense_len != 0) {
2532                 rsp->status_srb = sp;
2533                 cp->result = res;
2534         }
2535
2536         if (sense_len) {
2537                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
2538                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2539                     sp->vha->host_no, cp->device->id, cp->device->lun,
2540                     cp);
2541                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
2542                     cp->sense_buffer, sense_len);
2543         }
2544 }
2545
2546 struct scsi_dif_tuple {
2547         __be16 guard;       /* Checksum */
2548         __be16 app_tag;         /* APPL identifier */
2549         __be32 ref_tag;         /* Target LBA or indirect LBA */
2550 };
2551
2552 /*
2553  * Checks the guard or meta-data for the type of error
2554  * detected by the HBA. In case of errors, we set the
2555  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
2556  * to indicate to the kernel that the HBA detected error.
2557  */
2558 static inline int
2559 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
2560 {
2561         struct scsi_qla_host *vha = sp->vha;
2562         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2563         uint8_t         *ap = &sts24->data[12];
2564         uint8_t         *ep = &sts24->data[20];
2565         uint32_t        e_ref_tag, a_ref_tag;
2566         uint16_t        e_app_tag, a_app_tag;
2567         uint16_t        e_guard, a_guard;
2568
2569         /*
2570          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
2571          * would make guard field appear at offset 2
2572          */
2573         a_guard   = get_unaligned_le16(ap + 2);
2574         a_app_tag = get_unaligned_le16(ap + 0);
2575         a_ref_tag = get_unaligned_le32(ap + 4);
2576         e_guard   = get_unaligned_le16(ep + 2);
2577         e_app_tag = get_unaligned_le16(ep + 0);
2578         e_ref_tag = get_unaligned_le32(ep + 4);
2579
2580         ql_dbg(ql_dbg_io, vha, 0x3023,
2581             "iocb(s) %p Returned STATUS.\n", sts24);
2582
2583         ql_dbg(ql_dbg_io, vha, 0x3024,
2584             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
2585             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
2586             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
2587             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
2588             a_app_tag, e_app_tag, a_guard, e_guard);
2589
2590         /*
2591          * Ignore sector if:
2592          * For type     3: ref & app tag is all 'f's
2593          * For type 0,1,2: app tag is all 'f's
2594          */
2595         if (a_app_tag == be16_to_cpu(T10_PI_APP_ESCAPE) &&
2596             (scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3 ||
2597              a_ref_tag == be32_to_cpu(T10_PI_REF_ESCAPE))) {
2598                 uint32_t blocks_done, resid;
2599                 sector_t lba_s = scsi_get_lba(cmd);
2600
2601                 /* 2TB boundary case covered automatically with this */
2602                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
2603
2604                 resid = scsi_bufflen(cmd) - (blocks_done *
2605                     cmd->device->sector_size);
2606
2607                 scsi_set_resid(cmd, resid);
2608                 cmd->result = DID_OK << 16;
2609
2610                 /* Update protection tag */
2611                 if (scsi_prot_sg_count(cmd)) {
2612                         uint32_t i, j = 0, k = 0, num_ent;
2613                         struct scatterlist *sg;
2614                         struct t10_pi_tuple *spt;
2615
2616                         /* Patch the corresponding protection tags */
2617                         scsi_for_each_prot_sg(cmd, sg,
2618                             scsi_prot_sg_count(cmd), i) {
2619                                 num_ent = sg_dma_len(sg) / 8;
2620                                 if (k + num_ent < blocks_done) {
2621                                         k += num_ent;
2622                                         continue;
2623                                 }
2624                                 j = blocks_done - k - 1;
2625                                 k = blocks_done;
2626                                 break;
2627                         }
2628
2629                         if (k != blocks_done) {
2630                                 ql_log(ql_log_warn, vha, 0x302f,
2631                                     "unexpected tag values tag:lba=%x:%llx)\n",
2632                                     e_ref_tag, (unsigned long long)lba_s);
2633                                 return 1;
2634                         }
2635
2636                         spt = page_address(sg_page(sg)) + sg->offset;
2637                         spt += j;
2638
2639                         spt->app_tag = T10_PI_APP_ESCAPE;
2640                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
2641                                 spt->ref_tag = T10_PI_REF_ESCAPE;
2642                 }
2643
2644                 return 0;
2645         }
2646
2647         /* check guard */
2648         if (e_guard != a_guard) {
2649                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2650                     0x10, 0x1);
2651                 set_driver_byte(cmd, DRIVER_SENSE);
2652                 set_host_byte(cmd, DID_ABORT);
2653                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2654                 return 1;
2655         }
2656
2657         /* check ref tag */
2658         if (e_ref_tag != a_ref_tag) {
2659                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2660                     0x10, 0x3);
2661                 set_driver_byte(cmd, DRIVER_SENSE);
2662                 set_host_byte(cmd, DID_ABORT);
2663                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2664                 return 1;
2665         }
2666
2667         /* check appl tag */
2668         if (e_app_tag != a_app_tag) {
2669                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2670                     0x10, 0x2);
2671                 set_driver_byte(cmd, DRIVER_SENSE);
2672                 set_host_byte(cmd, DID_ABORT);
2673                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2674                 return 1;
2675         }
2676
2677         return 1;
2678 }
2679
2680 static void
2681 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2682                                   struct req_que *req, uint32_t index)
2683 {
2684         struct qla_hw_data *ha = vha->hw;
2685         srb_t *sp;
2686         uint16_t        comp_status;
2687         uint16_t        scsi_status;
2688         uint16_t thread_id;
2689         uint32_t rval = EXT_STATUS_OK;
2690         struct bsg_job *bsg_job = NULL;
2691         struct fc_bsg_request *bsg_request;
2692         struct fc_bsg_reply *bsg_reply;
2693         sts_entry_t *sts = pkt;
2694         struct sts_entry_24xx *sts24 = pkt;
2695
2696         /* Validate handle. */
2697         if (index >= req->num_outstanding_cmds) {
2698                 ql_log(ql_log_warn, vha, 0x70af,
2699                     "Invalid SCSI completion handle 0x%x.\n", index);
2700                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2701                 return;
2702         }
2703
2704         sp = req->outstanding_cmds[index];
2705         if (!sp) {
2706                 ql_log(ql_log_warn, vha, 0x70b0,
2707                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
2708                     req->id, index);
2709
2710                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2711                 return;
2712         }
2713
2714         /* Free outstanding command slot. */
2715         req->outstanding_cmds[index] = NULL;
2716         bsg_job = sp->u.bsg_job;
2717         bsg_request = bsg_job->request;
2718         bsg_reply = bsg_job->reply;
2719
2720         if (IS_FWI2_CAPABLE(ha)) {
2721                 comp_status = le16_to_cpu(sts24->comp_status);
2722                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2723         } else {
2724                 comp_status = le16_to_cpu(sts->comp_status);
2725                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2726         }
2727
2728         thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
2729         switch (comp_status) {
2730         case CS_COMPLETE:
2731                 if (scsi_status == 0) {
2732                         bsg_reply->reply_payload_rcv_len =
2733                                         bsg_job->reply_payload.payload_len;
2734                         vha->qla_stats.input_bytes +=
2735                                 bsg_reply->reply_payload_rcv_len;
2736                         vha->qla_stats.input_requests++;
2737                         rval = EXT_STATUS_OK;
2738                 }
2739                 goto done;
2740
2741         case CS_DATA_OVERRUN:
2742                 ql_dbg(ql_dbg_user, vha, 0x70b1,
2743                     "Command completed with data overrun thread_id=%d\n",
2744                     thread_id);
2745                 rval = EXT_STATUS_DATA_OVERRUN;
2746                 break;
2747
2748         case CS_DATA_UNDERRUN:
2749                 ql_dbg(ql_dbg_user, vha, 0x70b2,
2750                     "Command completed with data underrun thread_id=%d\n",
2751                     thread_id);
2752                 rval = EXT_STATUS_DATA_UNDERRUN;
2753                 break;
2754         case CS_BIDIR_RD_OVERRUN:
2755                 ql_dbg(ql_dbg_user, vha, 0x70b3,
2756                     "Command completed with read data overrun thread_id=%d\n",
2757                     thread_id);
2758                 rval = EXT_STATUS_DATA_OVERRUN;
2759                 break;
2760
2761         case CS_BIDIR_RD_WR_OVERRUN:
2762                 ql_dbg(ql_dbg_user, vha, 0x70b4,
2763                     "Command completed with read and write data overrun "
2764                     "thread_id=%d\n", thread_id);
2765                 rval = EXT_STATUS_DATA_OVERRUN;
2766                 break;
2767
2768         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
2769                 ql_dbg(ql_dbg_user, vha, 0x70b5,
2770                     "Command completed with read data over and write data "
2771                     "underrun thread_id=%d\n", thread_id);
2772                 rval = EXT_STATUS_DATA_OVERRUN;
2773                 break;
2774
2775         case CS_BIDIR_RD_UNDERRUN:
2776                 ql_dbg(ql_dbg_user, vha, 0x70b6,
2777                     "Command completed with read data underrun "
2778                     "thread_id=%d\n", thread_id);
2779                 rval = EXT_STATUS_DATA_UNDERRUN;
2780                 break;
2781
2782         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
2783                 ql_dbg(ql_dbg_user, vha, 0x70b7,
2784                     "Command completed with read data under and write data "
2785                     "overrun thread_id=%d\n", thread_id);
2786                 rval = EXT_STATUS_DATA_UNDERRUN;
2787                 break;
2788
2789         case CS_BIDIR_RD_WR_UNDERRUN:
2790                 ql_dbg(ql_dbg_user, vha, 0x70b8,
2791                     "Command completed with read and write data underrun "
2792                     "thread_id=%d\n", thread_id);
2793                 rval = EXT_STATUS_DATA_UNDERRUN;
2794                 break;
2795
2796         case CS_BIDIR_DMA:
2797                 ql_dbg(ql_dbg_user, vha, 0x70b9,
2798                     "Command completed with data DMA error thread_id=%d\n",
2799                     thread_id);
2800                 rval = EXT_STATUS_DMA_ERR;
2801                 break;
2802
2803         case CS_TIMEOUT:
2804                 ql_dbg(ql_dbg_user, vha, 0x70ba,
2805                     "Command completed with timeout thread_id=%d\n",
2806                     thread_id);
2807                 rval = EXT_STATUS_TIMEOUT;
2808                 break;
2809         default:
2810                 ql_dbg(ql_dbg_user, vha, 0x70bb,
2811                     "Command completed with completion status=0x%x "
2812                     "thread_id=%d\n", comp_status, thread_id);
2813                 rval = EXT_STATUS_ERR;
2814                 break;
2815         }
2816         bsg_reply->reply_payload_rcv_len = 0;
2817
2818 done:
2819         /* Return the vendor specific reply to API */
2820         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2821         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2822         /* Always return DID_OK, bsg will send the vendor specific response
2823          * in this case only */
2824         sp->done(sp, DID_OK << 16);
2825
2826 }
2827
2828 /**
2829  * qla2x00_status_entry() - Process a Status IOCB entry.
2830  * @vha: SCSI driver HA context
2831  * @rsp: response queue
2832  * @pkt: Entry pointer
2833  */
2834 static void
2835 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2836 {
2837         srb_t           *sp;
2838         fc_port_t       *fcport;
2839         struct scsi_cmnd *cp;
2840         sts_entry_t *sts = pkt;
2841         struct sts_entry_24xx *sts24 = pkt;
2842         uint16_t        comp_status;
2843         uint16_t        scsi_status;
2844         uint16_t        ox_id;
2845         uint8_t         lscsi_status;
2846         int32_t         resid;
2847         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2848             fw_resid_len;
2849         uint8_t         *rsp_info, *sense_data;
2850         struct qla_hw_data *ha = vha->hw;
2851         uint32_t handle;
2852         uint16_t que;
2853         struct req_que *req;
2854         int logit = 1;
2855         int res = 0;
2856         uint16_t state_flags = 0;
2857         uint16_t sts_qual = 0;
2858
2859         if (IS_FWI2_CAPABLE(ha)) {
2860                 comp_status = le16_to_cpu(sts24->comp_status);
2861                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2862                 state_flags = le16_to_cpu(sts24->state_flags);
2863         } else {
2864                 comp_status = le16_to_cpu(sts->comp_status);
2865                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2866         }
2867         handle = (uint32_t) LSW(sts->handle);
2868         que = MSW(sts->handle);
2869         req = ha->req_q_map[que];
2870
2871         /* Check for invalid queue pointer */
2872         if (req == NULL ||
2873             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2874                 ql_dbg(ql_dbg_io, vha, 0x3059,
2875                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2876                     "que=%u.\n", sts->handle, req, que);
2877                 return;
2878         }
2879
2880         /* Validate handle. */
2881         if (handle < req->num_outstanding_cmds) {
2882                 sp = req->outstanding_cmds[handle];
2883                 if (!sp) {
2884                         ql_dbg(ql_dbg_io, vha, 0x3075,
2885                             "%s(%ld): Already returned command for status handle (0x%x).\n",
2886                             __func__, vha->host_no, sts->handle);
2887                         return;
2888                 }
2889         } else {
2890                 ql_dbg(ql_dbg_io, vha, 0x3017,
2891                     "Invalid status handle, out of range (0x%x).\n",
2892                     sts->handle);
2893
2894                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2895                         if (IS_P3P_TYPE(ha))
2896                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2897                         else
2898                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2899                         qla2xxx_wake_dpc(vha);
2900                 }
2901                 return;
2902         }
2903         qla_put_iocbs(sp->qpair, &sp->iores);
2904
2905         if (sp->cmd_type != TYPE_SRB) {
2906                 req->outstanding_cmds[handle] = NULL;
2907                 ql_dbg(ql_dbg_io, vha, 0x3015,
2908                     "Unknown sp->cmd_type %x %p).\n",
2909                     sp->cmd_type, sp);
2910                 return;
2911         }
2912
2913         /* NVME completion. */
2914         if (sp->type == SRB_NVME_CMD) {
2915                 req->outstanding_cmds[handle] = NULL;
2916                 qla24xx_nvme_iocb_entry(vha, req, pkt, sp);
2917                 return;
2918         }
2919
2920         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2921                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2922                 return;
2923         }
2924
2925         /* Task Management completion. */
2926         if (sp->type == SRB_TM_CMD) {
2927                 qla24xx_tm_iocb_entry(vha, req, pkt);
2928                 return;
2929         }
2930
2931         /* Fast path completion. */
2932         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2933                 qla2x00_process_completed_request(vha, req, handle);
2934
2935                 return;
2936         }
2937
2938         req->outstanding_cmds[handle] = NULL;
2939         cp = GET_CMD_SP(sp);
2940         if (cp == NULL) {
2941                 ql_dbg(ql_dbg_io, vha, 0x3018,
2942                     "Command already returned (0x%x/%p).\n",
2943                     sts->handle, sp);
2944
2945                 return;
2946         }
2947
2948         lscsi_status = scsi_status & STATUS_MASK;
2949
2950         fcport = sp->fcport;
2951
2952         ox_id = 0;
2953         sense_len = par_sense_len = rsp_info_len = resid_len =
2954             fw_resid_len = 0;
2955         if (IS_FWI2_CAPABLE(ha)) {
2956                 if (scsi_status & SS_SENSE_LEN_VALID)
2957                         sense_len = le32_to_cpu(sts24->sense_len);
2958                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2959                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2960                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2961                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
2962                 if (comp_status == CS_DATA_UNDERRUN)
2963                         fw_resid_len = le32_to_cpu(sts24->residual_len);
2964                 rsp_info = sts24->data;
2965                 sense_data = sts24->data;
2966                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2967                 ox_id = le16_to_cpu(sts24->ox_id);
2968                 par_sense_len = sizeof(sts24->data);
2969                 sts_qual = le16_to_cpu(sts24->status_qualifier);
2970         } else {
2971                 if (scsi_status & SS_SENSE_LEN_VALID)
2972                         sense_len = le16_to_cpu(sts->req_sense_length);
2973                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2974                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2975                 resid_len = le32_to_cpu(sts->residual_length);
2976                 rsp_info = sts->rsp_info;
2977                 sense_data = sts->req_sense_data;
2978                 par_sense_len = sizeof(sts->req_sense_data);
2979         }
2980
2981         /* Check for any FCP transport errors. */
2982         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2983                 /* Sense data lies beyond any FCP RESPONSE data. */
2984                 if (IS_FWI2_CAPABLE(ha)) {
2985                         sense_data += rsp_info_len;
2986                         par_sense_len -= rsp_info_len;
2987                 }
2988                 if (rsp_info_len > 3 && rsp_info[3]) {
2989                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2990                             "FCP I/O protocol failure (0x%x/0x%x).\n",
2991                             rsp_info_len, rsp_info[3]);
2992
2993                         res = DID_BUS_BUSY << 16;
2994                         goto out;
2995                 }
2996         }
2997
2998         /* Check for overrun. */
2999         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
3000             scsi_status & SS_RESIDUAL_OVER)
3001                 comp_status = CS_DATA_OVERRUN;
3002
3003         /*
3004          * Check retry_delay_timer value if we receive a busy or
3005          * queue full.
3006          */
3007         if (unlikely(lscsi_status == SAM_STAT_TASK_SET_FULL ||
3008                      lscsi_status == SAM_STAT_BUSY))
3009                 qla2x00_set_retry_delay_timestamp(fcport, sts_qual);
3010
3011         /*
3012          * Based on Host and scsi status generate status code for Linux
3013          */
3014         switch (comp_status) {
3015         case CS_COMPLETE:
3016         case CS_QUEUE_FULL:
3017                 if (scsi_status == 0) {
3018                         res = DID_OK << 16;
3019                         break;
3020                 }
3021                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
3022                         resid = resid_len;
3023                         scsi_set_resid(cp, resid);
3024
3025                         if (!lscsi_status &&
3026                             ((unsigned)(scsi_bufflen(cp) - resid) <
3027                              cp->underflow)) {
3028                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
3029                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3030                                     resid, scsi_bufflen(cp));
3031
3032                                 res = DID_ERROR << 16;
3033                                 break;
3034                         }
3035                 }
3036                 res = DID_OK << 16 | lscsi_status;
3037
3038                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3039                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
3040                             "QUEUE FULL detected.\n");
3041                         break;
3042                 }
3043                 logit = 0;
3044                 if (lscsi_status != SS_CHECK_CONDITION)
3045                         break;
3046
3047                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3048                 if (!(scsi_status & SS_SENSE_LEN_VALID))
3049                         break;
3050
3051                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
3052                     rsp, res);
3053                 break;
3054
3055         case CS_DATA_UNDERRUN:
3056                 /* Use F/W calculated residual length. */
3057                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
3058                 scsi_set_resid(cp, resid);
3059                 if (scsi_status & SS_RESIDUAL_UNDER) {
3060                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
3061                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
3062                                     "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3063                                     resid, scsi_bufflen(cp));
3064
3065                                 res = DID_ERROR << 16 | lscsi_status;
3066                                 goto check_scsi_status;
3067                         }
3068
3069                         if (!lscsi_status &&
3070                             ((unsigned)(scsi_bufflen(cp) - resid) <
3071                             cp->underflow)) {
3072                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
3073                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3074                                     resid, scsi_bufflen(cp));
3075
3076                                 res = DID_ERROR << 16;
3077                                 break;
3078                         }
3079                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
3080                             lscsi_status != SAM_STAT_BUSY) {
3081                         /*
3082                          * scsi status of task set and busy are considered to be
3083                          * task not completed.
3084                          */
3085
3086                         ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
3087                             "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3088                             resid, scsi_bufflen(cp));
3089
3090                         res = DID_ERROR << 16 | lscsi_status;
3091                         goto check_scsi_status;
3092                 } else {
3093                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
3094                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
3095                             scsi_status, lscsi_status);
3096                 }
3097
3098                 res = DID_OK << 16 | lscsi_status;
3099                 logit = 0;
3100
3101 check_scsi_status:
3102                 /*
3103                  * Check to see if SCSI Status is non zero. If so report SCSI
3104                  * Status.
3105                  */
3106                 if (lscsi_status != 0) {
3107                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3108                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
3109                                     "QUEUE FULL detected.\n");
3110                                 logit = 1;
3111                                 break;
3112                         }
3113                         if (lscsi_status != SS_CHECK_CONDITION)
3114                                 break;
3115
3116                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3117                         if (!(scsi_status & SS_SENSE_LEN_VALID))
3118                                 break;
3119
3120                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
3121                             sense_len, rsp, res);
3122                 }
3123                 break;
3124
3125         case CS_PORT_LOGGED_OUT:
3126         case CS_PORT_CONFIG_CHG:
3127         case CS_PORT_BUSY:
3128         case CS_INCOMPLETE:
3129         case CS_PORT_UNAVAILABLE:
3130         case CS_TIMEOUT:
3131         case CS_RESET:
3132
3133                 /*
3134                  * We are going to have the fc class block the rport
3135                  * while we try to recover so instruct the mid layer
3136                  * to requeue until the class decides how to handle this.
3137                  */
3138                 res = DID_TRANSPORT_DISRUPTED << 16;
3139
3140                 if (comp_status == CS_TIMEOUT) {
3141                         if (IS_FWI2_CAPABLE(ha))
3142                                 break;
3143                         else if ((le16_to_cpu(sts->status_flags) &
3144                             SF_LOGOUT_SENT) == 0)
3145                                 break;
3146                 }
3147
3148                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
3149                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
3150                                 "Port to be marked lost on fcport=%02x%02x%02x, current "
3151                                 "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
3152                                 fcport->d_id.b.area, fcport->d_id.b.al_pa,
3153                                 port_state_str[FCS_ONLINE],
3154                                 comp_status);
3155
3156                         qlt_schedule_sess_for_deletion(fcport);
3157                 }
3158
3159                 break;
3160
3161         case CS_ABORTED:
3162                 res = DID_RESET << 16;
3163                 break;
3164
3165         case CS_DIF_ERROR:
3166                 logit = qla2x00_handle_dif_error(sp, sts24);
3167                 res = cp->result;
3168                 break;
3169
3170         case CS_TRANSPORT:
3171                 res = DID_ERROR << 16;
3172
3173                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
3174                         break;
3175
3176                 if (state_flags & BIT_4)
3177                         scmd_printk(KERN_WARNING, cp,
3178                             "Unsupported device '%s' found.\n",
3179                             cp->device->vendor);
3180                 break;
3181
3182         case CS_DMA:
3183                 ql_log(ql_log_info, fcport->vha, 0x3022,
3184                     "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",
3185                     comp_status, scsi_status, res, vha->host_no,
3186                     cp->device->id, cp->device->lun, fcport->d_id.b24,
3187                     ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3188                     resid_len, fw_resid_len, sp, cp);
3189                 ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
3190                     pkt, sizeof(*sts24));
3191                 res = DID_ERROR << 16;
3192                 break;
3193         default:
3194                 res = DID_ERROR << 16;
3195                 break;
3196         }
3197
3198 out:
3199         if (logit)
3200                 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
3201                     "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
3202                     "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
3203                     "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3204                     comp_status, scsi_status, res, vha->host_no,
3205                     cp->device->id, cp->device->lun, fcport->d_id.b.domain,
3206                     fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
3207                     cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3208                     resid_len, fw_resid_len, sp, cp);
3209
3210         if (rsp->status_srb == NULL)
3211                 sp->done(sp, res);
3212 }
3213
3214 /**
3215  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
3216  * @rsp: response queue
3217  * @pkt: Entry pointer
3218  *
3219  * Extended sense data.
3220  */
3221 static void
3222 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
3223 {
3224         uint8_t sense_sz = 0;
3225         struct qla_hw_data *ha = rsp->hw;
3226         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
3227         srb_t *sp = rsp->status_srb;
3228         struct scsi_cmnd *cp;
3229         uint32_t sense_len;
3230         uint8_t *sense_ptr;
3231
3232         if (!sp || !GET_CMD_SENSE_LEN(sp))
3233                 return;
3234
3235         sense_len = GET_CMD_SENSE_LEN(sp);
3236         sense_ptr = GET_CMD_SENSE_PTR(sp);
3237
3238         cp = GET_CMD_SP(sp);
3239         if (cp == NULL) {
3240                 ql_log(ql_log_warn, vha, 0x3025,
3241                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
3242
3243                 rsp->status_srb = NULL;
3244                 return;
3245         }
3246
3247         if (sense_len > sizeof(pkt->data))
3248                 sense_sz = sizeof(pkt->data);
3249         else
3250                 sense_sz = sense_len;
3251
3252         /* Move sense data. */
3253         if (IS_FWI2_CAPABLE(ha))
3254                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
3255         memcpy(sense_ptr, pkt->data, sense_sz);
3256         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
3257                 sense_ptr, sense_sz);
3258
3259         sense_len -= sense_sz;
3260         sense_ptr += sense_sz;
3261
3262         SET_CMD_SENSE_PTR(sp, sense_ptr);
3263         SET_CMD_SENSE_LEN(sp, sense_len);
3264
3265         /* Place command on done queue. */
3266         if (sense_len == 0) {
3267                 rsp->status_srb = NULL;
3268                 sp->done(sp, cp->result);
3269         }
3270 }
3271
3272 /**
3273  * qla2x00_error_entry() - Process an error entry.
3274  * @vha: SCSI driver HA context
3275  * @rsp: response queue
3276  * @pkt: Entry pointer
3277  * return : 1=allow further error analysis. 0=no additional error analysis.
3278  */
3279 static int
3280 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
3281 {
3282         srb_t *sp;
3283         struct qla_hw_data *ha = vha->hw;
3284         const char func[] = "ERROR-IOCB";
3285         uint16_t que = MSW(pkt->handle);
3286         struct req_que *req = NULL;
3287         int res = DID_ERROR << 16;
3288
3289         ql_dbg(ql_dbg_async, vha, 0x502a,
3290             "iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
3291             pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
3292
3293         if (que >= ha->max_req_queues || !ha->req_q_map[que])
3294                 goto fatal;
3295
3296         req = ha->req_q_map[que];
3297
3298         if (pkt->entry_status & RF_BUSY)
3299                 res = DID_BUS_BUSY << 16;
3300
3301         if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
3302                 return 0;
3303
3304         switch (pkt->entry_type) {
3305         case NOTIFY_ACK_TYPE:
3306         case STATUS_TYPE:
3307         case STATUS_CONT_TYPE:
3308         case LOGINOUT_PORT_IOCB_TYPE:
3309         case CT_IOCB_TYPE:
3310         case ELS_IOCB_TYPE:
3311         case ABORT_IOCB_TYPE:
3312         case MBX_IOCB_TYPE:
3313         default:
3314                 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3315                 if (sp) {
3316                         qla_put_iocbs(sp->qpair, &sp->iores);
3317                         sp->done(sp, res);
3318                         return 0;
3319                 }
3320                 break;
3321
3322         case ABTS_RESP_24XX:
3323         case CTIO_TYPE7:
3324         case CTIO_CRC2:
3325                 return 1;
3326         }
3327 fatal:
3328         ql_log(ql_log_warn, vha, 0x5030,
3329             "Error entry - invalid handle/queue (%04x).\n", que);
3330         return 0;
3331 }
3332
3333 /**
3334  * qla24xx_mbx_completion() - Process mailbox command completions.
3335  * @vha: SCSI driver HA context
3336  * @mb0: Mailbox0 register
3337  */
3338 static void
3339 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
3340 {
3341         uint16_t        cnt;
3342         uint32_t        mboxes;
3343         __le16 __iomem *wptr;
3344         struct qla_hw_data *ha = vha->hw;
3345         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3346
3347         /* Read all mbox registers? */
3348         WARN_ON_ONCE(ha->mbx_count > 32);
3349         mboxes = (1ULL << ha->mbx_count) - 1;
3350         if (!ha->mcp)
3351                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
3352         else
3353                 mboxes = ha->mcp->in_mb;
3354
3355         /* Load return mailbox registers. */
3356         ha->flags.mbox_int = 1;
3357         ha->mailbox_out[0] = mb0;
3358         mboxes >>= 1;
3359         wptr = &reg->mailbox1;
3360
3361         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
3362                 if (mboxes & BIT_0)
3363                         ha->mailbox_out[cnt] = rd_reg_word(wptr);
3364
3365                 mboxes >>= 1;
3366                 wptr++;
3367         }
3368 }
3369
3370 static void
3371 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
3372         struct abort_entry_24xx *pkt)
3373 {
3374         const char func[] = "ABT_IOCB";
3375         srb_t *sp;
3376         struct srb_iocb *abt;
3377
3378         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3379         if (!sp)
3380                 return;
3381
3382         abt = &sp->u.iocb_cmd;
3383         abt->u.abt.comp_status = pkt->nport_handle;
3384         sp->done(sp, 0);
3385 }
3386
3387 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
3388     struct pt_ls4_request *pkt, struct req_que *req)
3389 {
3390         srb_t *sp;
3391         const char func[] = "LS4_IOCB";
3392         uint16_t comp_status;
3393
3394         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3395         if (!sp)
3396                 return;
3397
3398         comp_status = le16_to_cpu(pkt->status);
3399         sp->done(sp, comp_status);
3400 }
3401
3402 static void qla24xx_process_mbx_iocb_response(struct scsi_qla_host *vha,
3403         struct rsp_que *rsp, struct sts_entry_24xx *pkt)
3404 {
3405         struct qla_hw_data *ha = vha->hw;
3406         srb_t *sp;
3407         static const char func[] = "MBX-IOCB2";
3408
3409         sp = qla2x00_get_sp_from_handle(vha, func, rsp->req, pkt);
3410         if (!sp)
3411                 return;
3412
3413         if (sp->type == SRB_SCSI_CMD ||
3414             sp->type == SRB_NVME_CMD ||
3415             sp->type == SRB_TM_CMD) {
3416                 ql_log(ql_log_warn, vha, 0x509d,
3417                         "Inconsistent event entry type %d\n", sp->type);
3418                 if (IS_P3P_TYPE(ha))
3419                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
3420                 else
3421                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3422                 return;
3423         }
3424
3425         qla24xx_mbx_iocb_entry(vha, rsp->req, (struct mbx_24xx_entry *)pkt);
3426 }
3427
3428 /**
3429  * qla24xx_process_response_queue() - Process response queue entries.
3430  * @vha: SCSI driver HA context
3431  * @rsp: response queue
3432  */
3433 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
3434         struct rsp_que *rsp)
3435 {
3436         struct sts_entry_24xx *pkt;
3437         struct qla_hw_data *ha = vha->hw;
3438         struct purex_entry_24xx *purex_entry;
3439         struct purex_item *pure_item;
3440
3441         if (!ha->flags.fw_started)
3442                 return;
3443
3444         if (rsp->qpair->cpuid != smp_processor_id() || !rsp->qpair->rcv_intr) {
3445                 rsp->qpair->rcv_intr = 1;
3446                 qla_cpu_update(rsp->qpair, smp_processor_id());
3447         }
3448
3449         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
3450                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
3451
3452                 rsp->ring_index++;
3453                 if (rsp->ring_index == rsp->length) {
3454                         rsp->ring_index = 0;
3455                         rsp->ring_ptr = rsp->ring;
3456                 } else {
3457                         rsp->ring_ptr++;
3458                 }
3459
3460                 if (pkt->entry_status != 0) {
3461                         if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
3462                                 goto process_err;
3463
3464                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3465                         wmb();
3466                         continue;
3467                 }
3468 process_err:
3469
3470                 switch (pkt->entry_type) {
3471                 case STATUS_TYPE:
3472                         qla2x00_status_entry(vha, rsp, pkt);
3473                         break;
3474                 case STATUS_CONT_TYPE:
3475                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
3476                         break;
3477                 case VP_RPT_ID_IOCB_TYPE:
3478                         qla24xx_report_id_acquisition(vha,
3479                             (struct vp_rpt_id_entry_24xx *)pkt);
3480                         break;
3481                 case LOGINOUT_PORT_IOCB_TYPE:
3482                         qla24xx_logio_entry(vha, rsp->req,
3483                             (struct logio_entry_24xx *)pkt);
3484                         break;
3485                 case CT_IOCB_TYPE:
3486                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
3487                         break;
3488                 case ELS_IOCB_TYPE:
3489                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
3490                         break;
3491                 case ABTS_RECV_24XX:
3492                         if (qla_ini_mode_enabled(vha)) {
3493                                 pure_item = qla24xx_copy_std_pkt(vha, pkt);
3494                                 if (!pure_item)
3495                                         break;
3496                                 qla24xx_queue_purex_item(vha, pure_item,
3497                                                          qla24xx_process_abts);
3498                                 break;
3499                         }
3500                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3501                             IS_QLA28XX(ha)) {
3502                                 /* ensure that the ATIO queue is empty */
3503                                 qlt_handle_abts_recv(vha, rsp,
3504                                     (response_t *)pkt);
3505                                 break;
3506                         } else {
3507                                 qlt_24xx_process_atio_queue(vha, 1);
3508                         }
3509                         fallthrough;
3510                 case ABTS_RESP_24XX:
3511                 case CTIO_TYPE7:
3512                 case CTIO_CRC2:
3513                         qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
3514                         break;
3515                 case PT_LS4_REQUEST:
3516                         qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
3517                             rsp->req);
3518                         break;
3519                 case NOTIFY_ACK_TYPE:
3520                         if (pkt->handle == QLA_TGT_SKIP_HANDLE)
3521                                 qlt_response_pkt_all_vps(vha, rsp,
3522                                     (response_t *)pkt);
3523                         else
3524                                 qla24xxx_nack_iocb_entry(vha, rsp->req,
3525                                         (struct nack_to_isp *)pkt);
3526                         break;
3527                 case MARKER_TYPE:
3528                         /* Do nothing in this case, this check is to prevent it
3529                          * from falling into default case
3530                          */
3531                         break;
3532                 case ABORT_IOCB_TYPE:
3533                         qla24xx_abort_iocb_entry(vha, rsp->req,
3534                             (struct abort_entry_24xx *)pkt);
3535                         break;
3536                 case MBX_IOCB_TYPE:
3537                         qla24xx_process_mbx_iocb_response(vha, rsp, pkt);
3538                         break;
3539                 case VP_CTRL_IOCB_TYPE:
3540                         qla_ctrlvp_completed(vha, rsp->req,
3541                             (struct vp_ctrl_entry_24xx *)pkt);
3542                         break;
3543                 case PUREX_IOCB_TYPE:
3544                         purex_entry = (void *)pkt;
3545                         switch (purex_entry->els_frame_payload[3]) {
3546                         case ELS_RDP:
3547                                 pure_item = qla24xx_copy_std_pkt(vha, pkt);
3548                                 if (!pure_item)
3549                                         break;
3550                                 qla24xx_queue_purex_item(vha, pure_item,
3551                                                  qla24xx_process_purex_rdp);
3552                                 break;
3553                         case ELS_FPIN:
3554                                 if (!vha->hw->flags.scm_enabled) {
3555                                         ql_log(ql_log_warn, vha, 0x5094,
3556                                                "SCM not active for this port\n");
3557                                         break;
3558                                 }
3559                                 pure_item = qla27xx_copy_fpin_pkt(vha,
3560                                                           (void **)&pkt, &rsp);
3561                                 if (!pure_item)
3562                                         break;
3563                                 qla24xx_queue_purex_item(vha, pure_item,
3564                                                  qla27xx_process_purex_fpin);
3565                                 break;
3566
3567                         default:
3568                                 ql_log(ql_log_warn, vha, 0x509c,
3569                                        "Discarding ELS Request opcode 0x%x\n",
3570                                        purex_entry->els_frame_payload[3]);
3571                         }
3572                         break;
3573                 default:
3574                         /* Type Not Supported. */
3575                         ql_dbg(ql_dbg_async, vha, 0x5042,
3576                                "Received unknown response pkt type 0x%x entry status=%x.\n",
3577                                pkt->entry_type, pkt->entry_status);
3578                         break;
3579                 }
3580                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3581                 wmb();
3582         }
3583
3584         /* Adjust ring index */
3585         if (IS_P3P_TYPE(ha)) {
3586                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
3587
3588                 wrt_reg_dword(&reg->rsp_q_out[0], rsp->ring_index);
3589         } else {
3590                 wrt_reg_dword(rsp->rsp_q_out, rsp->ring_index);
3591         }
3592 }
3593
3594 static void
3595 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
3596 {
3597         int rval;
3598         uint32_t cnt;
3599         struct qla_hw_data *ha = vha->hw;
3600         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3601
3602         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3603             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3604                 return;
3605
3606         rval = QLA_SUCCESS;
3607         wrt_reg_dword(&reg->iobase_addr, 0x7C00);
3608         rd_reg_dword(&reg->iobase_addr);
3609         wrt_reg_dword(&reg->iobase_window, 0x0001);
3610         for (cnt = 10000; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3611             rval == QLA_SUCCESS; cnt--) {
3612                 if (cnt) {
3613                         wrt_reg_dword(&reg->iobase_window, 0x0001);
3614                         udelay(10);
3615                 } else
3616                         rval = QLA_FUNCTION_TIMEOUT;
3617         }
3618         if (rval == QLA_SUCCESS)
3619                 goto next_test;
3620
3621         rval = QLA_SUCCESS;
3622         wrt_reg_dword(&reg->iobase_window, 0x0003);
3623         for (cnt = 100; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3624             rval == QLA_SUCCESS; cnt--) {
3625                 if (cnt) {
3626                         wrt_reg_dword(&reg->iobase_window, 0x0003);
3627                         udelay(10);
3628                 } else
3629                         rval = QLA_FUNCTION_TIMEOUT;
3630         }
3631         if (rval != QLA_SUCCESS)
3632                 goto done;
3633
3634 next_test:
3635         if (rd_reg_dword(&reg->iobase_c8) & BIT_3)
3636                 ql_log(ql_log_info, vha, 0x504c,
3637                     "Additional code -- 0x55AA.\n");
3638
3639 done:
3640         wrt_reg_dword(&reg->iobase_window, 0x0000);
3641         rd_reg_dword(&reg->iobase_window);
3642 }
3643
3644 /**
3645  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
3646  * @irq: interrupt number
3647  * @dev_id: SCSI driver HA context
3648  *
3649  * Called by system whenever the host adapter generates an interrupt.
3650  *
3651  * Returns handled flag.
3652  */
3653 irqreturn_t
3654 qla24xx_intr_handler(int irq, void *dev_id)
3655 {
3656         scsi_qla_host_t *vha;
3657         struct qla_hw_data *ha;
3658         struct device_reg_24xx __iomem *reg;
3659         int             status;
3660         unsigned long   iter;
3661         uint32_t        stat;
3662         uint32_t        hccr;
3663         uint16_t        mb[8];
3664         struct rsp_que *rsp;
3665         unsigned long   flags;
3666         bool process_atio = false;
3667
3668         rsp = (struct rsp_que *) dev_id;
3669         if (!rsp) {
3670                 ql_log(ql_log_info, NULL, 0x5059,
3671                     "%s: NULL response queue pointer.\n", __func__);
3672                 return IRQ_NONE;
3673         }
3674
3675         ha = rsp->hw;
3676         reg = &ha->iobase->isp24;
3677         status = 0;
3678
3679         if (unlikely(pci_channel_offline(ha->pdev)))
3680                 return IRQ_HANDLED;
3681
3682         spin_lock_irqsave(&ha->hardware_lock, flags);
3683         vha = pci_get_drvdata(ha->pdev);
3684         for (iter = 50; iter--; ) {
3685                 stat = rd_reg_dword(&reg->host_status);
3686                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3687                         break;
3688                 if (stat & HSRX_RISC_PAUSED) {
3689                         if (unlikely(pci_channel_offline(ha->pdev)))
3690                                 break;
3691
3692                         hccr = rd_reg_dword(&reg->hccr);
3693
3694                         ql_log(ql_log_warn, vha, 0x504b,
3695                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3696                             hccr);
3697
3698                         qla2xxx_check_risc_status(vha);
3699
3700                         ha->isp_ops->fw_dump(vha);
3701                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3702                         break;
3703                 } else if ((stat & HSRX_RISC_INT) == 0)
3704                         break;
3705
3706                 switch (stat & 0xff) {
3707                 case INTR_ROM_MB_SUCCESS:
3708                 case INTR_ROM_MB_FAILED:
3709                 case INTR_MB_SUCCESS:
3710                 case INTR_MB_FAILED:
3711                         qla24xx_mbx_completion(vha, MSW(stat));
3712                         status |= MBX_INTERRUPT;
3713
3714                         break;
3715                 case INTR_ASYNC_EVENT:
3716                         mb[0] = MSW(stat);
3717                         mb[1] = rd_reg_word(&reg->mailbox1);
3718                         mb[2] = rd_reg_word(&reg->mailbox2);
3719                         mb[3] = rd_reg_word(&reg->mailbox3);
3720                         qla2x00_async_event(vha, rsp, mb);
3721                         break;
3722                 case INTR_RSP_QUE_UPDATE:
3723                 case INTR_RSP_QUE_UPDATE_83XX:
3724                         qla24xx_process_response_queue(vha, rsp);
3725                         break;
3726                 case INTR_ATIO_QUE_UPDATE_27XX:
3727                 case INTR_ATIO_QUE_UPDATE:
3728                         process_atio = true;
3729                         break;
3730                 case INTR_ATIO_RSP_QUE_UPDATE:
3731                         process_atio = true;
3732                         qla24xx_process_response_queue(vha, rsp);
3733                         break;
3734                 default:
3735                         ql_dbg(ql_dbg_async, vha, 0x504f,
3736                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
3737                         break;
3738                 }
3739                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3740                 rd_reg_dword_relaxed(&reg->hccr);
3741                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
3742                         ndelay(3500);
3743         }
3744         qla2x00_handle_mbx_completion(ha, status);
3745         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3746
3747         if (process_atio) {
3748                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3749                 qlt_24xx_process_atio_queue(vha, 0);
3750                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3751         }
3752
3753         return IRQ_HANDLED;
3754 }
3755
3756 static irqreturn_t
3757 qla24xx_msix_rsp_q(int irq, void *dev_id)
3758 {
3759         struct qla_hw_data *ha;
3760         struct rsp_que *rsp;
3761         struct device_reg_24xx __iomem *reg;
3762         struct scsi_qla_host *vha;
3763         unsigned long flags;
3764
3765         rsp = (struct rsp_que *) dev_id;
3766         if (!rsp) {
3767                 ql_log(ql_log_info, NULL, 0x505a,
3768                     "%s: NULL response queue pointer.\n", __func__);
3769                 return IRQ_NONE;
3770         }
3771         ha = rsp->hw;
3772         reg = &ha->iobase->isp24;
3773
3774         spin_lock_irqsave(&ha->hardware_lock, flags);
3775
3776         vha = pci_get_drvdata(ha->pdev);
3777         qla24xx_process_response_queue(vha, rsp);
3778         if (!ha->flags.disable_msix_handshake) {
3779                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3780                 rd_reg_dword_relaxed(&reg->hccr);
3781         }
3782         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3783
3784         return IRQ_HANDLED;
3785 }
3786
3787 static irqreturn_t
3788 qla24xx_msix_default(int irq, void *dev_id)
3789 {
3790         scsi_qla_host_t *vha;
3791         struct qla_hw_data *ha;
3792         struct rsp_que *rsp;
3793         struct device_reg_24xx __iomem *reg;
3794         int             status;
3795         uint32_t        stat;
3796         uint32_t        hccr;
3797         uint16_t        mb[8];
3798         unsigned long flags;
3799         bool process_atio = false;
3800
3801         rsp = (struct rsp_que *) dev_id;
3802         if (!rsp) {
3803                 ql_log(ql_log_info, NULL, 0x505c,
3804                     "%s: NULL response queue pointer.\n", __func__);
3805                 return IRQ_NONE;
3806         }
3807         ha = rsp->hw;
3808         reg = &ha->iobase->isp24;
3809         status = 0;
3810
3811         spin_lock_irqsave(&ha->hardware_lock, flags);
3812         vha = pci_get_drvdata(ha->pdev);
3813         do {
3814                 stat = rd_reg_dword(&reg->host_status);
3815                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3816                         break;
3817                 if (stat & HSRX_RISC_PAUSED) {
3818                         if (unlikely(pci_channel_offline(ha->pdev)))
3819                                 break;
3820
3821                         hccr = rd_reg_dword(&reg->hccr);
3822
3823                         ql_log(ql_log_info, vha, 0x5050,
3824                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3825                             hccr);
3826
3827                         qla2xxx_check_risc_status(vha);
3828
3829                         ha->isp_ops->fw_dump(vha);
3830                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3831                         break;
3832                 } else if ((stat & HSRX_RISC_INT) == 0)
3833                         break;
3834
3835                 switch (stat & 0xff) {
3836                 case INTR_ROM_MB_SUCCESS:
3837                 case INTR_ROM_MB_FAILED:
3838                 case INTR_MB_SUCCESS:
3839                 case INTR_MB_FAILED:
3840                         qla24xx_mbx_completion(vha, MSW(stat));
3841                         status |= MBX_INTERRUPT;
3842
3843                         break;
3844                 case INTR_ASYNC_EVENT:
3845                         mb[0] = MSW(stat);
3846                         mb[1] = rd_reg_word(&reg->mailbox1);
3847                         mb[2] = rd_reg_word(&reg->mailbox2);
3848                         mb[3] = rd_reg_word(&reg->mailbox3);
3849                         qla2x00_async_event(vha, rsp, mb);
3850                         break;
3851                 case INTR_RSP_QUE_UPDATE:
3852                 case INTR_RSP_QUE_UPDATE_83XX:
3853                         qla24xx_process_response_queue(vha, rsp);
3854                         break;
3855                 case INTR_ATIO_QUE_UPDATE_27XX:
3856                 case INTR_ATIO_QUE_UPDATE:
3857                         process_atio = true;
3858                         break;
3859                 case INTR_ATIO_RSP_QUE_UPDATE:
3860                         process_atio = true;
3861                         qla24xx_process_response_queue(vha, rsp);
3862                         break;
3863                 default:
3864                         ql_dbg(ql_dbg_async, vha, 0x5051,
3865                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
3866                         break;
3867                 }
3868                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3869         } while (0);
3870         qla2x00_handle_mbx_completion(ha, status);
3871         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3872
3873         if (process_atio) {
3874                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3875                 qlt_24xx_process_atio_queue(vha, 0);
3876                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3877         }
3878
3879         return IRQ_HANDLED;
3880 }
3881
3882 irqreturn_t
3883 qla2xxx_msix_rsp_q(int irq, void *dev_id)
3884 {
3885         struct qla_hw_data *ha;
3886         struct qla_qpair *qpair;
3887
3888         qpair = dev_id;
3889         if (!qpair) {
3890                 ql_log(ql_log_info, NULL, 0x505b,
3891                     "%s: NULL response queue pointer.\n", __func__);
3892                 return IRQ_NONE;
3893         }
3894         ha = qpair->hw;
3895
3896         queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
3897
3898         return IRQ_HANDLED;
3899 }
3900
3901 irqreturn_t
3902 qla2xxx_msix_rsp_q_hs(int irq, void *dev_id)
3903 {
3904         struct qla_hw_data *ha;
3905         struct qla_qpair *qpair;
3906         struct device_reg_24xx __iomem *reg;
3907         unsigned long flags;
3908
3909         qpair = dev_id;
3910         if (!qpair) {
3911                 ql_log(ql_log_info, NULL, 0x505b,
3912                     "%s: NULL response queue pointer.\n", __func__);
3913                 return IRQ_NONE;
3914         }
3915         ha = qpair->hw;
3916
3917         reg = &ha->iobase->isp24;
3918         spin_lock_irqsave(&ha->hardware_lock, flags);
3919         wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3920         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3921
3922         queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
3923
3924         return IRQ_HANDLED;
3925 }
3926
3927 /* Interrupt handling helpers. */
3928
3929 struct qla_init_msix_entry {
3930         const char *name;
3931         irq_handler_t handler;
3932 };
3933
3934 static const struct qla_init_msix_entry msix_entries[] = {
3935         { "default", qla24xx_msix_default },
3936         { "rsp_q", qla24xx_msix_rsp_q },
3937         { "atio_q", qla83xx_msix_atio_q },
3938         { "qpair_multiq", qla2xxx_msix_rsp_q },
3939         { "qpair_multiq_hs", qla2xxx_msix_rsp_q_hs },
3940 };
3941
3942 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
3943         { "qla2xxx (default)", qla82xx_msix_default },
3944         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3945 };
3946
3947 static int
3948 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3949 {
3950         int i, ret;
3951         struct qla_msix_entry *qentry;
3952         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3953         int min_vecs = QLA_BASE_VECTORS;
3954         struct irq_affinity desc = {
3955                 .pre_vectors = QLA_BASE_VECTORS,
3956         };
3957
3958         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
3959             IS_ATIO_MSIX_CAPABLE(ha)) {
3960                 desc.pre_vectors++;
3961                 min_vecs++;
3962         }
3963
3964         if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
3965                 /* user wants to control IRQ setting for target mode */
3966                 ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
3967                     ha->msix_count, PCI_IRQ_MSIX);
3968         } else
3969                 ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
3970                     ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
3971                     &desc);
3972
3973         if (ret < 0) {
3974                 ql_log(ql_log_fatal, vha, 0x00c7,
3975                     "MSI-X: Failed to enable support, "
3976                     "giving   up -- %d/%d.\n",
3977                     ha->msix_count, ret);
3978                 goto msix_out;
3979         } else if (ret < ha->msix_count) {
3980                 ql_log(ql_log_info, vha, 0x00c6,
3981                     "MSI-X: Using %d vectors\n", ret);
3982                 ha->msix_count = ret;
3983                 /* Recalculate queue values */
3984                 if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
3985                         ha->max_req_queues = ha->msix_count - 1;
3986
3987                         /* ATIOQ needs 1 vector. That's 1 less QPair */
3988                         if (QLA_TGT_MODE_ENABLED())
3989                                 ha->max_req_queues--;
3990
3991                         ha->max_rsp_queues = ha->max_req_queues;
3992
3993                         ha->max_qpairs = ha->max_req_queues - 1;
3994                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
3995                             "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
3996                 }
3997         }
3998         vha->irq_offset = desc.pre_vectors;
3999         ha->msix_entries = kcalloc(ha->msix_count,
4000                                    sizeof(struct qla_msix_entry),
4001                                    GFP_KERNEL);
4002         if (!ha->msix_entries) {
4003                 ql_log(ql_log_fatal, vha, 0x00c8,
4004                     "Failed to allocate memory for ha->msix_entries.\n");
4005                 ret = -ENOMEM;
4006                 goto free_irqs;
4007         }
4008         ha->flags.msix_enabled = 1;
4009
4010         for (i = 0; i < ha->msix_count; i++) {
4011                 qentry = &ha->msix_entries[i];
4012                 qentry->vector = pci_irq_vector(ha->pdev, i);
4013                 qentry->entry = i;
4014                 qentry->have_irq = 0;
4015                 qentry->in_use = 0;
4016                 qentry->handle = NULL;
4017         }
4018
4019         /* Enable MSI-X vectors for the base queue */
4020         for (i = 0; i < QLA_BASE_VECTORS; i++) {
4021                 qentry = &ha->msix_entries[i];
4022                 qentry->handle = rsp;
4023                 rsp->msix = qentry;
4024                 scnprintf(qentry->name, sizeof(qentry->name),
4025                     "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
4026                 if (IS_P3P_TYPE(ha))
4027                         ret = request_irq(qentry->vector,
4028                                 qla82xx_msix_entries[i].handler,
4029                                 0, qla82xx_msix_entries[i].name, rsp);
4030                 else
4031                         ret = request_irq(qentry->vector,
4032                                 msix_entries[i].handler,
4033                                 0, qentry->name, rsp);
4034                 if (ret)
4035                         goto msix_register_fail;
4036                 qentry->have_irq = 1;
4037                 qentry->in_use = 1;
4038         }
4039
4040         /*
4041          * If target mode is enable, also request the vector for the ATIO
4042          * queue.
4043          */
4044         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
4045             IS_ATIO_MSIX_CAPABLE(ha)) {
4046                 qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
4047                 rsp->msix = qentry;
4048                 qentry->handle = rsp;
4049                 scnprintf(qentry->name, sizeof(qentry->name),
4050                     "qla2xxx%lu_%s", vha->host_no,
4051                     msix_entries[QLA_ATIO_VECTOR].name);
4052                 qentry->in_use = 1;
4053                 ret = request_irq(qentry->vector,
4054                         msix_entries[QLA_ATIO_VECTOR].handler,
4055                         0, qentry->name, rsp);
4056                 qentry->have_irq = 1;
4057         }
4058
4059 msix_register_fail:
4060         if (ret) {
4061                 ql_log(ql_log_fatal, vha, 0x00cb,
4062                     "MSI-X: unable to register handler -- %x/%d.\n",
4063                     qentry->vector, ret);
4064                 qla2x00_free_irqs(vha);
4065                 ha->mqenable = 0;
4066                 goto msix_out;
4067         }
4068
4069         /* Enable MSI-X vector for response queue update for queue 0 */
4070         if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
4071                 if (ha->msixbase && ha->mqiobase &&
4072                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
4073                      ql2xmqsupport))
4074                         ha->mqenable = 1;
4075         } else
4076                 if (ha->mqiobase &&
4077                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
4078                      ql2xmqsupport))
4079                         ha->mqenable = 1;
4080         ql_dbg(ql_dbg_multiq, vha, 0xc005,
4081             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4082             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4083         ql_dbg(ql_dbg_init, vha, 0x0055,
4084             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4085             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4086
4087 msix_out:
4088         return ret;
4089
4090 free_irqs:
4091         pci_free_irq_vectors(ha->pdev);
4092         goto msix_out;
4093 }
4094
4095 int
4096 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
4097 {
4098         int ret = QLA_FUNCTION_FAILED;
4099         device_reg_t *reg = ha->iobase;
4100         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4101
4102         /* If possible, enable MSI-X. */
4103         if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
4104             !IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
4105             !IS_QLAFX00(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha)))
4106                 goto skip_msi;
4107
4108         if (ql2xenablemsix == 2)
4109                 goto skip_msix;
4110
4111         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
4112                 (ha->pdev->subsystem_device == 0x7040 ||
4113                 ha->pdev->subsystem_device == 0x7041 ||
4114                 ha->pdev->subsystem_device == 0x1705)) {
4115                 ql_log(ql_log_warn, vha, 0x0034,
4116                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
4117                         ha->pdev->subsystem_vendor,
4118                         ha->pdev->subsystem_device);
4119                 goto skip_msi;
4120         }
4121
4122         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
4123                 ql_log(ql_log_warn, vha, 0x0035,
4124                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
4125                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
4126                 goto skip_msix;
4127         }
4128
4129         ret = qla24xx_enable_msix(ha, rsp);
4130         if (!ret) {
4131                 ql_dbg(ql_dbg_init, vha, 0x0036,
4132                     "MSI-X: Enabled (0x%X, 0x%X).\n",
4133                     ha->chip_revision, ha->fw_attributes);
4134                 goto clear_risc_ints;
4135         }
4136
4137 skip_msix:
4138
4139         ql_log(ql_log_info, vha, 0x0037,
4140             "Falling back-to MSI mode -- ret=%d.\n", ret);
4141
4142         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
4143             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
4144             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
4145                 goto skip_msi;
4146
4147         ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
4148         if (ret > 0) {
4149                 ql_dbg(ql_dbg_init, vha, 0x0038,
4150                     "MSI: Enabled.\n");
4151                 ha->flags.msi_enabled = 1;
4152         } else
4153                 ql_log(ql_log_warn, vha, 0x0039,
4154                     "Falling back-to INTa mode -- ret=%d.\n", ret);
4155 skip_msi:
4156
4157         /* Skip INTx on ISP82xx. */
4158         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
4159                 return QLA_FUNCTION_FAILED;
4160
4161         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
4162             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
4163             QLA2XXX_DRIVER_NAME, rsp);
4164         if (ret) {
4165                 ql_log(ql_log_warn, vha, 0x003a,
4166                     "Failed to reserve interrupt %d already in use.\n",
4167                     ha->pdev->irq);
4168                 goto fail;
4169         } else if (!ha->flags.msi_enabled) {
4170                 ql_dbg(ql_dbg_init, vha, 0x0125,
4171                     "INTa mode: Enabled.\n");
4172                 ha->flags.mr_intr_valid = 1;
4173         }
4174
4175 clear_risc_ints:
4176         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
4177                 goto fail;
4178
4179         spin_lock_irq(&ha->hardware_lock);
4180         wrt_reg_word(&reg->isp.semaphore, 0);
4181         spin_unlock_irq(&ha->hardware_lock);
4182
4183 fail:
4184         return ret;
4185 }
4186
4187 void
4188 qla2x00_free_irqs(scsi_qla_host_t *vha)
4189 {
4190         struct qla_hw_data *ha = vha->hw;
4191         struct rsp_que *rsp;
4192         struct qla_msix_entry *qentry;
4193         int i;
4194
4195         /*
4196          * We need to check that ha->rsp_q_map is valid in case we are called
4197          * from a probe failure context.
4198          */
4199         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
4200                 goto free_irqs;
4201         rsp = ha->rsp_q_map[0];
4202
4203         if (ha->flags.msix_enabled) {
4204                 for (i = 0; i < ha->msix_count; i++) {
4205                         qentry = &ha->msix_entries[i];
4206                         if (qentry->have_irq) {
4207                                 irq_set_affinity_notifier(qentry->vector, NULL);
4208                                 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
4209                         }
4210                 }
4211                 kfree(ha->msix_entries);
4212                 ha->msix_entries = NULL;
4213                 ha->flags.msix_enabled = 0;
4214                 ql_dbg(ql_dbg_init, vha, 0x0042,
4215                         "Disabled MSI-X.\n");
4216         } else {
4217                 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
4218         }
4219
4220 free_irqs:
4221         pci_free_irq_vectors(ha->pdev);
4222 }
4223
4224 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
4225         struct qla_msix_entry *msix, int vector_type)
4226 {
4227         const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
4228         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4229         int ret;
4230
4231         scnprintf(msix->name, sizeof(msix->name),
4232             "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
4233         ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
4234         if (ret) {
4235                 ql_log(ql_log_fatal, vha, 0x00e6,
4236                     "MSI-X: Unable to register handler -- %x/%d.\n",
4237                     msix->vector, ret);
4238                 return ret;
4239         }
4240         msix->have_irq = 1;
4241         msix->handle = qpair;
4242         return ret;
4243 }