drivers/scsi/qla2xxx/qla_isr.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * QLogic Fibre Channel HBA Driver
   4  * Copyright (c)  2003-2014 QLogic Corporation
   5  */
   6 #include "qla_def.h"
   7 #include "qla_target.h"
   8 #include "qla_gbl.h"
   9
  10 #include <linux/delay.h>
  11 #include <linux/slab.h>
  12 #include <linux/cpu.h>
  13 #include <linux/t10-pi.h>
  14 #include <scsi/scsi_tcq.h>
  15 #include <scsi/scsi_bsg_fc.h>
  16 #include <scsi/scsi_eh.h>
  17 #include <scsi/fc/fc_fs.h>
  18 #include <linux/nvme-fc-driver.h>
  19
  20 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
  21 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
  22 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
  23 static int qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
  24         sts_entry_t *);
  25 static void qla27xx_process_purex_fpin(struct scsi_qla_host *vha,
  26         struct purex_item *item);
  27 static struct purex_item *qla24xx_alloc_purex_item(scsi_qla_host_t *vha,
  28         uint16_t size);
  29 static struct purex_item *qla24xx_copy_std_pkt(struct scsi_qla_host *vha,
  30         void *pkt);
  31 static struct purex_item *qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha,
  32         void **pkt, struct rsp_que **rsp);
  33
  34 static void
  35 qla27xx_process_purex_fpin(struct scsi_qla_host *vha, struct purex_item *item)
  36 {
  37         void *pkt = &item->iocb;
  38         uint16_t pkt_size = item->size;
  39
  40         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508d,
  41                "%s: Enter\n", __func__);
  42
  43         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508e,
  44                "-------- ELS REQ -------\n");
  45         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x508f,
  46                        pkt, pkt_size);
  47
  48         fc_host_fpin_rcv(vha->host, pkt_size, (char *)pkt);
  49 }
  50
  51 const char *const port_state_str[] = {
  52         [FCS_UNKNOWN]           = "Unknown",
  53         [FCS_UNCONFIGURED]      = "UNCONFIGURED",
  54         [FCS_DEVICE_DEAD]       = "DEAD",
  55         [FCS_DEVICE_LOST]       = "LOST",
  56         [FCS_ONLINE]            = "ONLINE"
  57 };
  58
  59 static void
  60 qla24xx_process_abts(struct scsi_qla_host *vha, struct purex_item *pkt)
  61 {
  62         struct abts_entry_24xx *abts =
  63             (struct abts_entry_24xx *)&pkt->iocb;
  64         struct qla_hw_data *ha = vha->hw;
  65         struct els_entry_24xx *rsp_els;
  66         struct abts_entry_24xx *abts_rsp;
  67         dma_addr_t dma;
  68         uint32_t fctl;
  69         int rval;
  70
  71         ql_dbg(ql_dbg_init, vha, 0x0286, "%s: entered.\n", __func__);
  72
  73         ql_log(ql_log_warn, vha, 0x0287,
  74             "Processing ABTS xchg=%#x oxid=%#x rxid=%#x seqid=%#x seqcnt=%#x\n",
  75             abts->rx_xch_addr_to_abort, abts->ox_id, abts->rx_id,
  76             abts->seq_id, abts->seq_cnt);
  77         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  78             "-------- ABTS RCV -------\n");
  79         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  80             (uint8_t *)abts, sizeof(*abts));
  81
  82         rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els), &dma,
  83             GFP_KERNEL);
  84         if (!rsp_els) {
  85                 ql_log(ql_log_warn, vha, 0x0287,
  86                     "Failed allocate dma buffer ABTS/ELS RSP.\n");
  87                 return;
  88         }
  89
  90         /* terminate exchange */
  91         rsp_els->entry_type = ELS_IOCB_TYPE;
  92         rsp_els->entry_count = 1;
  93         rsp_els->nport_handle = cpu_to_le16(~0);
  94         rsp_els->rx_xchg_address = abts->rx_xch_addr_to_abort;
  95         rsp_els->control_flags = cpu_to_le16(EPD_RX_XCHG);
  96         ql_dbg(ql_dbg_init, vha, 0x0283,
  97             "Sending ELS Response to terminate exchange %#x...\n",
  98             abts->rx_xch_addr_to_abort);
  99         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 100             "-------- ELS RSP -------\n");
 101         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 102             (uint8_t *)rsp_els, sizeof(*rsp_els));
 103         rval = qla2x00_issue_iocb(vha, rsp_els, dma, 0);
 104         if (rval) {
 105                 ql_log(ql_log_warn, vha, 0x0288,
 106                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 107         } else if (rsp_els->comp_status) {
 108                 ql_log(ql_log_warn, vha, 0x0289,
 109                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 110                     __func__, rsp_els->comp_status,
 111                     rsp_els->error_subcode_1, rsp_els->error_subcode_2);
 112         } else {
 113                 ql_dbg(ql_dbg_init, vha, 0x028a,
 114                     "%s: abort exchange done.\n", __func__);
 115         }
 116
 117         /* send ABTS response */
 118         abts_rsp = (void *)rsp_els;
 119         memset(abts_rsp, 0, sizeof(*abts_rsp));
 120         abts_rsp->entry_type = ABTS_RSP_TYPE;
 121         abts_rsp->entry_count = 1;
 122         abts_rsp->nport_handle = abts->nport_handle;
 123         abts_rsp->vp_idx = abts->vp_idx;
 124         abts_rsp->sof_type = abts->sof_type & 0xf0;
 125         abts_rsp->rx_xch_addr = abts->rx_xch_addr;
 126         abts_rsp->d_id[0] = abts->s_id[0];
 127         abts_rsp->d_id[1] = abts->s_id[1];
 128         abts_rsp->d_id[2] = abts->s_id[2];
 129         abts_rsp->r_ctl = FC_ROUTING_BLD | FC_R_CTL_BLD_BA_ACC;
 130         abts_rsp->s_id[0] = abts->d_id[0];
 131         abts_rsp->s_id[1] = abts->d_id[1];
 132         abts_rsp->s_id[2] = abts->d_id[2];
 133         abts_rsp->cs_ctl = abts->cs_ctl;
 134         /* include flipping bit23 in fctl */
 135         fctl = ~(abts->f_ctl[2] | 0x7F) << 16 |
 136             FC_F_CTL_LAST_SEQ | FC_F_CTL_END_SEQ | FC_F_CTL_SEQ_INIT;
 137         abts_rsp->f_ctl[0] = fctl >> 0 & 0xff;
 138         abts_rsp->f_ctl[1] = fctl >> 8 & 0xff;
 139         abts_rsp->f_ctl[2] = fctl >> 16 & 0xff;
 140         abts_rsp->type = FC_TYPE_BLD;
 141         abts_rsp->rx_id = abts->rx_id;
 142         abts_rsp->ox_id = abts->ox_id;
 143         abts_rsp->payload.ba_acc.aborted_rx_id = abts->rx_id;
 144         abts_rsp->payload.ba_acc.aborted_ox_id = abts->ox_id;
 145         abts_rsp->payload.ba_acc.high_seq_cnt = cpu_to_le16(~0);
 146         abts_rsp->rx_xch_addr_to_abort = abts->rx_xch_addr_to_abort;
 147         ql_dbg(ql_dbg_init, vha, 0x028b,
 148             "Sending BA ACC response to ABTS %#x...\n",
 149             abts->rx_xch_addr_to_abort);
 150         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 151             "-------- ELS RSP -------\n");
 152         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 153             (uint8_t *)abts_rsp, sizeof(*abts_rsp));
 154         rval = qla2x00_issue_iocb(vha, abts_rsp, dma, 0);
 155         if (rval) {
 156                 ql_log(ql_log_warn, vha, 0x028c,
 157                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 158         } else if (abts_rsp->comp_status) {
 159                 ql_log(ql_log_warn, vha, 0x028d,
 160                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 161                     __func__, abts_rsp->comp_status,
 162                     abts_rsp->payload.error.subcode1,
 163                     abts_rsp->payload.error.subcode2);
 164         } else {
 165                 ql_dbg(ql_dbg_init, vha, 0x028ea,
 166                     "%s: done.\n", __func__);
 167         }
 168
 169         dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, dma);
 170 }
 171
 172 /**
 173  * __qla_consume_iocb - this routine is used to tell fw driver has processed
 174  *   or consumed the head IOCB along with the continuation IOCB's from the
 175  *   provided respond queue.
 176  * @vha: host adapter pointer
 177  * @pkt: pointer to current packet.  On return, this pointer shall move
 178  *       to the next packet.
 179  * @rsp: respond queue pointer.
 180  *
 181  * it is assumed pkt is the head iocb, not the continuation iocbk
 182  */
 183 void __qla_consume_iocb(struct scsi_qla_host *vha,
 184         void **pkt, struct rsp_que **rsp)
 185 {
 186         struct rsp_que *rsp_q = *rsp;
 187         response_t *new_pkt;
 188         uint16_t entry_count_remaining;
 189         struct purex_entry_24xx *purex = *pkt;
 190
 191         entry_count_remaining = purex->entry_count;
 192         while (entry_count_remaining > 0) {
 193                 new_pkt = rsp_q->ring_ptr;
 194                 *pkt = new_pkt;
 195
 196                 rsp_q->ring_index++;
 197                 if (rsp_q->ring_index == rsp_q->length) {
 198                         rsp_q->ring_index = 0;
 199                         rsp_q->ring_ptr = rsp_q->ring;
 200                 } else {
 201                         rsp_q->ring_ptr++;
 202                 }
 203
 204                 new_pkt->signature = RESPONSE_PROCESSED;
 205                 /* flush signature */
 206                 wmb();
 207                 --entry_count_remaining;
 208         }
 209 }
 210
 211 /**
 212  * __qla_copy_purex_to_buffer - extract ELS payload from Purex IOCB
 213  *    and save to provided buffer
 214  * @vha: host adapter pointer
 215  * @pkt: pointer Purex IOCB
 216  * @rsp: respond queue
 217  * @buf: extracted ELS payload copy here
 218  * @buf_len: buffer length
 219  */
 220 int __qla_copy_purex_to_buffer(struct scsi_qla_host *vha,
 221         void **pkt, struct rsp_que **rsp, u8 *buf, u32 buf_len)
 222 {
 223         struct purex_entry_24xx *purex = *pkt;
 224         struct rsp_que *rsp_q = *rsp;
 225         sts_cont_entry_t *new_pkt;
 226         uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
 227         uint16_t buffer_copy_offset = 0;
 228         uint16_t entry_count_remaining;
 229         u16 tpad;
 230
 231         entry_count_remaining = purex->entry_count;
 232         total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
 233                 - PURX_ELS_HEADER_SIZE;
 234
 235         /*
 236          * end of payload may not end in 4bytes boundary.  Need to
 237          * round up / pad for room to swap, before saving data
 238          */
 239         tpad = roundup(total_bytes, 4);
 240
 241         if (buf_len < tpad) {
 242                 ql_dbg(ql_dbg_async, vha, 0x5084,
 243                     "%s buffer is too small %d < %d\n",
 244                     __func__, buf_len, tpad);
 245                 __qla_consume_iocb(vha, pkt, rsp);
 246                 return -EIO;
 247         }
 248
 249         pending_bytes = total_bytes = tpad;
 250         no_bytes = (pending_bytes > sizeof(purex->els_frame_payload))  ?
 251             sizeof(purex->els_frame_payload) : pending_bytes;
 252
 253         memcpy(buf, &purex->els_frame_payload[0], no_bytes);
 254         buffer_copy_offset += no_bytes;
 255         pending_bytes -= no_bytes;
 256         --entry_count_remaining;
 257
 258         ((response_t *)purex)->signature = RESPONSE_PROCESSED;
 259         /* flush signature */
 260         wmb();
 261
 262         do {
 263                 while ((total_bytes > 0) && (entry_count_remaining > 0)) {
 264                         new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
 265                         *pkt = new_pkt;
 266
 267                         if (new_pkt->entry_type != STATUS_CONT_TYPE) {
 268                                 ql_log(ql_log_warn, vha, 0x507a,
 269                                     "Unexpected IOCB type, partial data 0x%x\n",
 270                                     buffer_copy_offset);
 271                                 break;
 272                         }
 273
 274                         rsp_q->ring_index++;
 275                         if (rsp_q->ring_index == rsp_q->length) {
 276                                 rsp_q->ring_index = 0;
 277                                 rsp_q->ring_ptr = rsp_q->ring;
 278                         } else {
 279                                 rsp_q->ring_ptr++;
 280                         }
 281                         no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
 282                             sizeof(new_pkt->data) : pending_bytes;
 283                         if ((buffer_copy_offset + no_bytes) <= total_bytes) {
 284                                 memcpy((buf + buffer_copy_offset), new_pkt->data,
 285                                     no_bytes);
 286                                 buffer_copy_offset += no_bytes;
 287                                 pending_bytes -= no_bytes;
 288                                 --entry_count_remaining;
 289                         } else {
 290                                 ql_log(ql_log_warn, vha, 0x5044,
 291                                     "Attempt to copy more that we got, optimizing..%x\n",
 292                                     buffer_copy_offset);
 293                                 memcpy((buf + buffer_copy_offset), new_pkt->data,
 294                                     total_bytes - buffer_copy_offset);
 295                         }
 296
 297                         ((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
 298                         /* flush signature */
 299                         wmb();
 300                 }
 301
 302                 if (pending_bytes != 0 || entry_count_remaining != 0) {
 303                         ql_log(ql_log_fatal, vha, 0x508b,
 304                             "Dropping partial Data, underrun bytes = 0x%x, entry cnts 0x%x\n",
 305                             total_bytes, entry_count_remaining);
 306                         return -EIO;
 307                 }
 308         } while (entry_count_remaining > 0);
 309
 310         be32_to_cpu_array((u32 *)buf, (__be32 *)buf, total_bytes >> 2);
 311
 312         return 0;
 313 }
 314
 315 /**
 316  * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
 317  * @irq: interrupt number
 318  * @dev_id: SCSI driver HA context
 319  *
 320  * Called by system whenever the host adapter generates an interrupt.
 321  *
 322  * Returns handled flag.
 323  */
 324 irqreturn_t
 325 qla2100_intr_handler(int irq, void *dev_id)
 326 {
 327         scsi_qla_host_t *vha;
 328         struct qla_hw_data *ha;
 329         struct device_reg_2xxx __iomem *reg;
 330         int             status;
 331         unsigned long   iter;
 332         uint16_t        hccr;
 333         uint16_t        mb[8];
 334         struct rsp_que *rsp;
 335         unsigned long   flags;
 336
 337         rsp = (struct rsp_que *) dev_id;
 338         if (!rsp) {
 339                 ql_log(ql_log_info, NULL, 0x505d,
 340                     "%s: NULL response queue pointer.\n", __func__);
 341                 return (IRQ_NONE);
 342         }
 343
 344         ha = rsp->hw;
 345         reg = &ha->iobase->isp;
 346         status = 0;
 347
 348         spin_lock_irqsave(&ha->hardware_lock, flags);
 349         vha = pci_get_drvdata(ha->pdev);
 350         for (iter = 50; iter--; ) {
 351                 hccr = rd_reg_word(&reg->hccr);
 352                 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
 353                         break;
 354                 if (hccr & HCCR_RISC_PAUSE) {
 355                         if (pci_channel_offline(ha->pdev))
 356                                 break;
 357
 358                         /*
 359                          * Issue a "HARD" reset in order for the RISC interrupt
 360                          * bit to be cleared.  Schedule a big hammer to get
 361                          * out of the RISC PAUSED state.
 362                          */
 363                         wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 364                         rd_reg_word(&reg->hccr);
 365
 366                         ha->isp_ops->fw_dump(vha);
 367                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 368                         break;
 369                 } else if ((rd_reg_word(&reg->istatus) & ISR_RISC_INT) == 0)
 370                         break;
 371
 372                 if (rd_reg_word(&reg->semaphore) & BIT_0) {
 373                         wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 374                         rd_reg_word(&reg->hccr);
 375
 376                         /* Get mailbox data. */
 377                         mb[0] = RD_MAILBOX_REG(ha, reg, 0);
 378                         if (mb[0] > 0x3fff && mb[0] < 0x8000) {
 379                                 qla2x00_mbx_completion(vha, mb[0]);
 380                                 status |= MBX_INTERRUPT;
 381                         } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
 382                                 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 383                                 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 384                                 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 385                                 qla2x00_async_event(vha, rsp, mb);
 386                         } else {
 387                                 /*EMPTY*/
 388                                 ql_dbg(ql_dbg_async, vha, 0x5025,
 389                                     "Unrecognized interrupt type (%d).\n",
 390                                     mb[0]);
 391                         }
 392                         /* Release mailbox registers. */
 393                         wrt_reg_word(&reg->semaphore, 0);
 394                         rd_reg_word(&reg->semaphore);
 395                 } else {
 396                         qla2x00_process_response_queue(rsp);
 397
 398                         wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 399                         rd_reg_word(&reg->hccr);
 400                 }
 401         }
 402         qla2x00_handle_mbx_completion(ha, status);
 403         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 404
 405         return (IRQ_HANDLED);
 406 }
 407
 408 bool
 409 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
 410 {
 411         /* Check for PCI disconnection */
 412         if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
 413                 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
 414                     !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
 415                     !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
 416                         qla_schedule_eeh_work(vha);
 417                 }
 418                 return true;
 419         } else
 420                 return false;
 421 }
 422
 423 bool
 424 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
 425 {
 426         return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
 427 }
 428
 429 /**
 430  * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 431  * @irq: interrupt number
 432  * @dev_id: SCSI driver HA context
 433  *
 434  * Called by system whenever the host adapter generates an interrupt.
 435  *
 436  * Returns handled flag.
 437  */
 438 irqreturn_t
 439 qla2300_intr_handler(int irq, void *dev_id)
 440 {
 441         scsi_qla_host_t *vha;
 442         struct device_reg_2xxx __iomem *reg;
 443         int             status;
 444         unsigned long   iter;
 445         uint32_t        stat;
 446         uint16_t        hccr;
 447         uint16_t        mb[8];
 448         struct rsp_que *rsp;
 449         struct qla_hw_data *ha;
 450         unsigned long   flags;
 451
 452         rsp = (struct rsp_que *) dev_id;
 453         if (!rsp) {
 454                 ql_log(ql_log_info, NULL, 0x5058,
 455                     "%s: NULL response queue pointer.\n", __func__);
 456                 return (IRQ_NONE);
 457         }
 458
 459         ha = rsp->hw;
 460         reg = &ha->iobase->isp;
 461         status = 0;
 462
 463         spin_lock_irqsave(&ha->hardware_lock, flags);
 464         vha = pci_get_drvdata(ha->pdev);
 465         for (iter = 50; iter--; ) {
 466                 stat = rd_reg_dword(&reg->u.isp2300.host_status);
 467                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
 468                         break;
 469                 if (stat & HSR_RISC_PAUSED) {
 470                         if (unlikely(pci_channel_offline(ha->pdev)))
 471                                 break;
 472
 473                         hccr = rd_reg_word(&reg->hccr);
 474
 475                         if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
 476                                 ql_log(ql_log_warn, vha, 0x5026,
 477                                     "Parity error -- HCCR=%x, Dumping "
 478                                     "firmware.\n", hccr);
 479                         else
 480                                 ql_log(ql_log_warn, vha, 0x5027,
 481                                     "RISC paused -- HCCR=%x, Dumping "
 482                                     "firmware.\n", hccr);
 483
 484                         /*
 485                          * Issue a "HARD" reset in order for the RISC
 486                          * interrupt bit to be cleared.  Schedule a big
 487                          * hammer to get out of the RISC PAUSED state.
 488                          */
 489                         wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 490                         rd_reg_word(&reg->hccr);
 491
 492                         ha->isp_ops->fw_dump(vha);
 493                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 494                         break;
 495                 } else if ((stat & HSR_RISC_INT) == 0)
 496                         break;
 497
 498                 switch (stat & 0xff) {
 499                 case 0x1:
 500                 case 0x2:
 501                 case 0x10:
 502                 case 0x11:
 503                         qla2x00_mbx_completion(vha, MSW(stat));
 504                         status |= MBX_INTERRUPT;
 505
 506                         /* Release mailbox registers. */
 507                         wrt_reg_word(&reg->semaphore, 0);
 508                         break;
 509                 case 0x12:
 510                         mb[0] = MSW(stat);
 511                         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 512                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 513                         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 514                         qla2x00_async_event(vha, rsp, mb);
 515                         break;
 516                 case 0x13:
 517                         qla2x00_process_response_queue(rsp);
 518                         break;
 519                 case 0x15:
 520                         mb[0] = MBA_CMPLT_1_16BIT;
 521                         mb[1] = MSW(stat);
 522                         qla2x00_async_event(vha, rsp, mb);
 523                         break;
 524                 case 0x16:
 525                         mb[0] = MBA_SCSI_COMPLETION;
 526                         mb[1] = MSW(stat);
 527                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 528                         qla2x00_async_event(vha, rsp, mb);
 529                         break;
 530                 default:
 531                         ql_dbg(ql_dbg_async, vha, 0x5028,
 532                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
 533                         break;
 534                 }
 535                 wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 536                 rd_reg_word_relaxed(&reg->hccr);
 537         }
 538         qla2x00_handle_mbx_completion(ha, status);
 539         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 540
 541         return (IRQ_HANDLED);
 542 }
 543
 544 /**
 545  * qla2x00_mbx_completion() - Process mailbox command completions.
 546  * @vha: SCSI driver HA context
 547  * @mb0: Mailbox0 register
 548  */
 549 static void
 550 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 551 {
 552         uint16_t        cnt;
 553         uint32_t        mboxes;
 554         __le16 __iomem *wptr;
 555         struct qla_hw_data *ha = vha->hw;
 556         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 557
 558         /* Read all mbox registers? */
 559         WARN_ON_ONCE(ha->mbx_count > 32);
 560         mboxes = (1ULL << ha->mbx_count) - 1;
 561         if (!ha->mcp)
 562                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 563         else
 564                 mboxes = ha->mcp->in_mb;
 565
 566         /* Load return mailbox registers. */
 567         ha->flags.mbox_int = 1;
 568         ha->mailbox_out[0] = mb0;
 569         mboxes >>= 1;
 570         wptr = MAILBOX_REG(ha, reg, 1);
 571
 572         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 573                 if (IS_QLA2200(ha) && cnt == 8)
 574                         wptr = MAILBOX_REG(ha, reg, 8);
 575                 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 576                         ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 577                 else if (mboxes & BIT_0)
 578                         ha->mailbox_out[cnt] = rd_reg_word(wptr);
 579
 580                 wptr++;
 581                 mboxes >>= 1;
 582         }
 583 }
 584
 585 static void
 586 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 587 {
 588         static char *event[] =
 589                 { "Complete", "Request Notification", "Time Extension" };
 590         int rval;
 591         struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 592         struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 593         __le16 __iomem *wptr;
 594         uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 595
 596         /* Seed data -- mailbox1 -> mailbox7. */
 597         if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 598                 wptr = &reg24->mailbox1;
 599         else if (IS_QLA8044(vha->hw))
 600                 wptr = &reg82->mailbox_out[1];
 601         else
 602                 return;
 603
 604         for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 605                 mb[cnt] = rd_reg_word(wptr);
 606
 607         ql_dbg(ql_dbg_async, vha, 0x5021,
 608             "Inter-Driver Communication %s -- "
 609             "%04x %04x %04x %04x %04x %04x %04x.\n",
 610             event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 611             mb[4], mb[5], mb[6]);
 612         switch (aen) {
 613         /* Handle IDC Error completion case. */
 614         case MBA_IDC_COMPLETE:
 615                 if (mb[1] >> 15) {
 616                         vha->hw->flags.idc_compl_status = 1;
 617                         if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 618                                 complete(&vha->hw->dcbx_comp);
 619                 }
 620                 break;
 621
 622         case MBA_IDC_NOTIFY:
 623                 /* Acknowledgement needed? [Notify && non-zero timeout]. */
 624                 timeout = (descr >> 8) & 0xf;
 625                 ql_dbg(ql_dbg_async, vha, 0x5022,
 626                     "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 627                     vha->host_no, event[aen & 0xff], timeout);
 628
 629                 if (!timeout)
 630                         return;
 631                 rval = qla2x00_post_idc_ack_work(vha, mb);
 632                 if (rval != QLA_SUCCESS)
 633                         ql_log(ql_log_warn, vha, 0x5023,
 634                             "IDC failed to post ACK.\n");
 635                 break;
 636         case MBA_IDC_TIME_EXT:
 637                 vha->hw->idc_extend_tmo = descr;
 638                 ql_dbg(ql_dbg_async, vha, 0x5087,
 639                     "%lu Inter-Driver Communication %s -- "
 640                     "Extend timeout by=%d.\n",
 641                     vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 642                 break;
 643         }
 644 }
 645
 646 #define LS_UNKNOWN      2
 647 const char *
 648 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 649 {
 650         static const char *const link_speeds[] = {
 651                 "1", "2", "?", "4", "8", "16", "32", "64", "10"
 652         };
 653 #define QLA_LAST_SPEED (ARRAY_SIZE(link_speeds) - 1)
 654
 655         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 656                 return link_speeds[0];
 657         else if (speed == 0x13)
 658                 return link_speeds[QLA_LAST_SPEED];
 659         else if (speed < QLA_LAST_SPEED)
 660                 return link_speeds[speed];
 661         else
 662                 return link_speeds[LS_UNKNOWN];
 663 }
 664
 665 static void
 666 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 667 {
 668         struct qla_hw_data *ha = vha->hw;
 669
 670         /*
 671          * 8200 AEN Interpretation:
 672          * mb[0] = AEN code
 673          * mb[1] = AEN Reason code
 674          * mb[2] = LSW of Peg-Halt Status-1 Register
 675          * mb[6] = MSW of Peg-Halt Status-1 Register
 676          * mb[3] = LSW of Peg-Halt Status-2 register
 677          * mb[7] = MSW of Peg-Halt Status-2 register
 678          * mb[4] = IDC Device-State Register value
 679          * mb[5] = IDC Driver-Presence Register value
 680          */
 681         ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 682             "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 683             mb[0], mb[1], mb[2], mb[6]);
 684         ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 685             "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 686             "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 687
 688         if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 689                                 IDC_HEARTBEAT_FAILURE)) {
 690                 ha->flags.nic_core_hung = 1;
 691                 ql_log(ql_log_warn, vha, 0x5060,
 692                     "83XX: F/W Error Reported: Check if reset required.\n");
 693
 694                 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 695                         uint32_t protocol_engine_id, fw_err_code, err_level;
 696
 697                         /*
 698                          * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 699                          *  - PEG-Halt Status-1 Register:
 700                          *      (LSW = mb[2], MSW = mb[6])
 701                          *      Bits 0-7   = protocol-engine ID
 702                          *      Bits 8-28  = f/w error code
 703                          *      Bits 29-31 = Error-level
 704                          *          Error-level 0x1 = Non-Fatal error
 705                          *          Error-level 0x2 = Recoverable Fatal error
 706                          *          Error-level 0x4 = UnRecoverable Fatal error
 707                          *  - PEG-Halt Status-2 Register:
 708                          *      (LSW = mb[3], MSW = mb[7])
 709                          */
 710                         protocol_engine_id = (mb[2] & 0xff);
 711                         fw_err_code = (((mb[2] & 0xff00) >> 8) |
 712                             ((mb[6] & 0x1fff) << 8));
 713                         err_level = ((mb[6] & 0xe000) >> 13);
 714                         ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 715                             "Register: protocol_engine_id=0x%x "
 716                             "fw_err_code=0x%x err_level=0x%x.\n",
 717                             protocol_engine_id, fw_err_code, err_level);
 718                         ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 719                             "Register: 0x%x%x.\n", mb[7], mb[3]);
 720                         if (err_level == ERR_LEVEL_NON_FATAL) {
 721                                 ql_log(ql_log_warn, vha, 0x5063,
 722                                     "Not a fatal error, f/w has recovered itself.\n");
 723                         } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 724                                 ql_log(ql_log_fatal, vha, 0x5064,
 725                                     "Recoverable Fatal error: Chip reset "
 726                                     "required.\n");
 727                                 qla83xx_schedule_work(vha,
 728                                     QLA83XX_NIC_CORE_RESET);
 729                         } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 730                                 ql_log(ql_log_fatal, vha, 0x5065,
 731                                     "Unrecoverable Fatal error: Set FAILED "
 732                                     "state, reboot required.\n");
 733                                 qla83xx_schedule_work(vha,
 734                                     QLA83XX_NIC_CORE_UNRECOVERABLE);
 735                         }
 736                 }
 737
 738                 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 739                         uint16_t peg_fw_state, nw_interface_link_up;
 740                         uint16_t nw_interface_signal_detect, sfp_status;
 741                         uint16_t htbt_counter, htbt_monitor_enable;
 742                         uint16_t sfp_additional_info, sfp_multirate;
 743                         uint16_t sfp_tx_fault, link_speed, dcbx_status;
 744
 745                         /*
 746                          * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 747                          *  - PEG-to-FC Status Register:
 748                          *      (LSW = mb[2], MSW = mb[6])
 749                          *      Bits 0-7   = Peg-Firmware state
 750                          *      Bit 8      = N/W Interface Link-up
 751                          *      Bit 9      = N/W Interface signal detected
 752                          *      Bits 10-11 = SFP Status
 753                          *        SFP Status 0x0 = SFP+ transceiver not expected
 754                          *        SFP Status 0x1 = SFP+ transceiver not present
 755                          *        SFP Status 0x2 = SFP+ transceiver invalid
 756                          *        SFP Status 0x3 = SFP+ transceiver present and
 757                          *        valid
 758                          *      Bits 12-14 = Heartbeat Counter
 759                          *      Bit 15     = Heartbeat Monitor Enable
 760                          *      Bits 16-17 = SFP Additional Info
 761                          *        SFP info 0x0 = Unregocnized transceiver for
 762                          *        Ethernet
 763                          *        SFP info 0x1 = SFP+ brand validation failed
 764                          *        SFP info 0x2 = SFP+ speed validation failed
 765                          *        SFP info 0x3 = SFP+ access error
 766                          *      Bit 18     = SFP Multirate
 767                          *      Bit 19     = SFP Tx Fault
 768                          *      Bits 20-22 = Link Speed
 769                          *      Bits 23-27 = Reserved
 770                          *      Bits 28-30 = DCBX Status
 771                          *        DCBX Status 0x0 = DCBX Disabled
 772                          *        DCBX Status 0x1 = DCBX Enabled
 773                          *        DCBX Status 0x2 = DCBX Exchange error
 774                          *      Bit 31     = Reserved
 775                          */
 776                         peg_fw_state = (mb[2] & 0x00ff);
 777                         nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 778                         nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 779                         sfp_status = ((mb[2] & 0x0c00) >> 10);
 780                         htbt_counter = ((mb[2] & 0x7000) >> 12);
 781                         htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 782                         sfp_additional_info = (mb[6] & 0x0003);
 783                         sfp_multirate = ((mb[6] & 0x0004) >> 2);
 784                         sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 785                         link_speed = ((mb[6] & 0x0070) >> 4);
 786                         dcbx_status = ((mb[6] & 0x7000) >> 12);
 787
 788                         ql_log(ql_log_warn, vha, 0x5066,
 789                             "Peg-to-Fc Status Register:\n"
 790                             "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 791                             "nw_interface_signal_detect=0x%x"
 792                             "\nsfp_statis=0x%x.\n ", peg_fw_state,
 793                             nw_interface_link_up, nw_interface_signal_detect,
 794                             sfp_status);
 795                         ql_log(ql_log_warn, vha, 0x5067,
 796                             "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 797                             "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
 798                             htbt_counter, htbt_monitor_enable,
 799                             sfp_additional_info, sfp_multirate);
 800                         ql_log(ql_log_warn, vha, 0x5068,
 801                             "sfp_tx_fault=0x%x, link_state=0x%x, "
 802                             "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 803                             dcbx_status);
 804
 805                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 806                 }
 807
 808                 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 809                         ql_log(ql_log_warn, vha, 0x5069,
 810                             "Heartbeat Failure encountered, chip reset "
 811                             "required.\n");
 812
 813                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 814                 }
 815         }
 816
 817         if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 818                 ql_log(ql_log_info, vha, 0x506a,
 819                     "IDC Device-State changed = 0x%x.\n", mb[4]);
 820                 if (ha->flags.nic_core_reset_owner)
 821                         return;
 822                 qla83xx_schedule_work(vha, MBA_IDC_AEN);
 823         }
 824 }
 825
 826 int
 827 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 828 {
 829         struct qla_hw_data *ha = vha->hw;
 830         scsi_qla_host_t *vp;
 831         uint32_t vp_did;
 832         unsigned long flags;
 833         int ret = 0;
 834
 835         if (!ha->num_vhosts)
 836                 return ret;
 837
 838         spin_lock_irqsave(&ha->vport_slock, flags);
 839         list_for_each_entry(vp, &ha->vp_list, list) {
 840                 vp_did = vp->d_id.b24;
 841                 if (vp_did == rscn_entry) {
 842                         ret = 1;
 843                         break;
 844                 }
 845         }
 846         spin_unlock_irqrestore(&ha->vport_slock, flags);
 847
 848         return ret;
 849 }
 850
 851 fc_port_t *
 852 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
 853 {
 854         fc_port_t *f, *tf;
 855
 856         f = tf = NULL;
 857         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
 858                 if (f->loop_id == loop_id)
 859                         return f;
 860         return NULL;
 861 }
 862
 863 fc_port_t *
 864 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
 865 {
 866         fc_port_t *f, *tf;
 867
 868         f = tf = NULL;
 869         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 870                 if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
 871                         if (incl_deleted)
 872                                 return f;
 873                         else if (f->deleted == 0)
 874                                 return f;
 875                 }
 876         }
 877         return NULL;
 878 }
 879
 880 fc_port_t *
 881 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
 882         u8 incl_deleted)
 883 {
 884         fc_port_t *f, *tf;
 885
 886         f = tf = NULL;
 887         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 888                 if (f->d_id.b24 == id->b24) {
 889                         if (incl_deleted)
 890                                 return f;
 891                         else if (f->deleted == 0)
 892                                 return f;
 893                 }
 894         }
 895         return NULL;
 896 }
 897
 898 /* Shall be called only on supported adapters. */
 899 static void
 900 qla27xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 901 {
 902         struct qla_hw_data *ha = vha->hw;
 903         bool reset_isp_needed = false;
 904
 905         ql_log(ql_log_warn, vha, 0x02f0,
 906                "MPI Heartbeat stop. MPI reset is%s needed. "
 907                "MB0[%xh] MB1[%xh] MB2[%xh] MB3[%xh]\n",
 908                mb[1] & BIT_8 ? "" : " not",
 909                mb[0], mb[1], mb[2], mb[3]);
 910
 911         if ((mb[1] & BIT_8) == 0)
 912                 return;
 913
 914         ql_log(ql_log_warn, vha, 0x02f1,
 915                "MPI Heartbeat stop. FW dump needed\n");
 916
 917         if (ql2xfulldump_on_mpifail) {
 918                 ha->isp_ops->fw_dump(vha);
 919                 reset_isp_needed = true;
 920         }
 921
 922         ha->isp_ops->mpi_fw_dump(vha, 1);
 923
 924         if (reset_isp_needed) {
 925                 vha->hw->flags.fw_init_done = 0;
 926                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 927                 qla2xxx_wake_dpc(vha);
 928         }
 929 }
 930
 931 static struct purex_item *
 932 qla24xx_alloc_purex_item(scsi_qla_host_t *vha, uint16_t size)
 933 {
 934         struct purex_item *item = NULL;
 935         uint8_t item_hdr_size = sizeof(*item);
 936
 937         if (size > QLA_DEFAULT_PAYLOAD_SIZE) {
 938                 item = kzalloc(item_hdr_size +
 939                     (size - QLA_DEFAULT_PAYLOAD_SIZE), GFP_ATOMIC);
 940         } else {
 941                 if (atomic_inc_return(&vha->default_item.in_use) == 1) {
 942                         item = &vha->default_item;
 943                         goto initialize_purex_header;
 944                 } else {
 945                         item = kzalloc(item_hdr_size, GFP_ATOMIC);
 946                 }
 947         }
 948         if (!item) {
 949                 ql_log(ql_log_warn, vha, 0x5092,
 950                        ">> Failed allocate purex list item.\n");
 951
 952                 return NULL;
 953         }
 954
 955 initialize_purex_header:
 956         item->vha = vha;
 957         item->size = size;
 958         return item;
 959 }
 960
 961 static void
 962 qla24xx_queue_purex_item(scsi_qla_host_t *vha, struct purex_item *pkt,
 963                          void (*process_item)(struct scsi_qla_host *vha,
 964                                               struct purex_item *pkt))
 965 {
 966         struct purex_list *list = &vha->purex_list;
 967         ulong flags;
 968
 969         pkt->process_item = process_item;
 970
 971         spin_lock_irqsave(&list->lock, flags);
 972         list_add_tail(&pkt->list, &list->head);
 973         spin_unlock_irqrestore(&list->lock, flags);
 974
 975         set_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
 976 }
 977
 978 /**
 979  * qla24xx_copy_std_pkt() - Copy over purex ELS which is
 980  * contained in a single IOCB.
 981  * purex packet.
 982  * @vha: SCSI driver HA context
 983  * @pkt: ELS packet
 984  */
 985 static struct purex_item
 986 *qla24xx_copy_std_pkt(struct scsi_qla_host *vha, void *pkt)
 987 {
 988         struct purex_item *item;
 989
 990         item = qla24xx_alloc_purex_item(vha,
 991                                         QLA_DEFAULT_PAYLOAD_SIZE);
 992         if (!item)
 993                 return item;
 994
 995         memcpy(&item->iocb, pkt, sizeof(item->iocb));
 996         return item;
 997 }
 998
 999 /**
1000  * qla27xx_copy_fpin_pkt() - Copy over fpin packets that can
1001  * span over multiple IOCBs.
1002  * @vha: SCSI driver HA context
1003  * @pkt: ELS packet
1004  * @rsp: Response queue
1005  */
1006 static struct purex_item *
1007 qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha, void **pkt,
1008                       struct rsp_que **rsp)
1009 {
1010         struct purex_entry_24xx *purex = *pkt;
1011         struct rsp_que *rsp_q = *rsp;
1012         sts_cont_entry_t *new_pkt;
1013         uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
1014         uint16_t buffer_copy_offset = 0;
1015         uint16_t entry_count, entry_count_remaining;
1016         struct purex_item *item;
1017         void *fpin_pkt = NULL;
1018
1019         total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
1020             - PURX_ELS_HEADER_SIZE;
1021         pending_bytes = total_bytes;
1022         entry_count = entry_count_remaining = purex->entry_count;
1023         no_bytes = (pending_bytes > sizeof(purex->els_frame_payload))  ?
1024                    sizeof(purex->els_frame_payload) : pending_bytes;
1025         ql_log(ql_log_info, vha, 0x509a,
1026                "FPIN ELS, frame_size 0x%x, entry count %d\n",
1027                total_bytes, entry_count);
1028
1029         item = qla24xx_alloc_purex_item(vha, total_bytes);
1030         if (!item)
1031                 return item;
1032
1033         fpin_pkt = &item->iocb;
1034
1035         memcpy(fpin_pkt, &purex->els_frame_payload[0], no_bytes);
1036         buffer_copy_offset += no_bytes;
1037         pending_bytes -= no_bytes;
1038         --entry_count_remaining;
1039
1040         ((response_t *)purex)->signature = RESPONSE_PROCESSED;
1041         wmb();
1042
1043         do {
1044                 while ((total_bytes > 0) && (entry_count_remaining > 0)) {
1045                         if (rsp_q->ring_ptr->signature == RESPONSE_PROCESSED) {
1046                                 ql_dbg(ql_dbg_async, vha, 0x5084,
1047                                        "Ran out of IOCBs, partial data 0x%x\n",
1048                                        buffer_copy_offset);
1049                                 cpu_relax();
1050                                 continue;
1051                         }
1052
1053                         new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
1054                         *pkt = new_pkt;
1055
1056                         if (new_pkt->entry_type != STATUS_CONT_TYPE) {
1057                                 ql_log(ql_log_warn, vha, 0x507a,
1058                                        "Unexpected IOCB type, partial data 0x%x\n",
1059                                        buffer_copy_offset);
1060                                 break;
1061                         }
1062
1063                         rsp_q->ring_index++;
1064                         if (rsp_q->ring_index == rsp_q->length) {
1065                                 rsp_q->ring_index = 0;
1066                                 rsp_q->ring_ptr = rsp_q->ring;
1067                         } else {
1068                                 rsp_q->ring_ptr++;
1069                         }
1070                         no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
1071                             sizeof(new_pkt->data) : pending_bytes;
1072                         if ((buffer_copy_offset + no_bytes) <= total_bytes) {
1073                                 memcpy(((uint8_t *)fpin_pkt +
1074                                     buffer_copy_offset), new_pkt->data,
1075                                     no_bytes);
1076                                 buffer_copy_offset += no_bytes;
1077                                 pending_bytes -= no_bytes;
1078                                 --entry_count_remaining;
1079                         } else {
1080                                 ql_log(ql_log_warn, vha, 0x5044,
1081                                        "Attempt to copy more that we got, optimizing..%x\n",
1082                                        buffer_copy_offset);
1083                                 memcpy(((uint8_t *)fpin_pkt +
1084                                     buffer_copy_offset), new_pkt->data,
1085                                     total_bytes - buffer_copy_offset);
1086                         }
1087
1088                         ((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
1089                         wmb();
1090                 }
1091
1092                 if (pending_bytes != 0 || entry_count_remaining != 0) {
1093                         ql_log(ql_log_fatal, vha, 0x508b,
1094                                "Dropping partial FPIN, underrun bytes = 0x%x, entry cnts 0x%x\n",
1095                                total_bytes, entry_count_remaining);
1096                         qla24xx_free_purex_item(item);
1097                         return NULL;
1098                 }
1099         } while (entry_count_remaining > 0);
1100         host_to_fcp_swap((uint8_t *)&item->iocb, total_bytes);
1101         return item;
1102 }
1103
1104 /**
1105  * qla2x00_async_event() - Process aynchronous events.
1106  * @vha: SCSI driver HA context
1107  * @rsp: response queue
1108  * @mb: Mailbox registers (0 - 3)
1109  */
1110 void
1111 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
1112 {
1113         uint16_t        handle_cnt;
1114         uint16_t        cnt, mbx;
1115         uint32_t        handles[5];
1116         struct qla_hw_data *ha = vha->hw;
1117         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1118         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
1119         struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
1120         uint32_t        rscn_entry, host_pid;
1121         unsigned long   flags;
1122         fc_port_t       *fcport = NULL;
1123
1124         if (!vha->hw->flags.fw_started)
1125                 return;
1126
1127         /* Setup to process RIO completion. */
1128         handle_cnt = 0;
1129         if (IS_CNA_CAPABLE(ha))
1130                 goto skip_rio;
1131         switch (mb[0]) {
1132         case MBA_SCSI_COMPLETION:
1133                 handles[0] = make_handle(mb[2], mb[1]);
1134                 handle_cnt = 1;
1135                 break;
1136         case MBA_CMPLT_1_16BIT:
1137                 handles[0] = mb[1];
1138                 handle_cnt = 1;
1139                 mb[0] = MBA_SCSI_COMPLETION;
1140                 break;
1141         case MBA_CMPLT_2_16BIT:
1142                 handles[0] = mb[1];
1143                 handles[1] = mb[2];
1144                 handle_cnt = 2;
1145                 mb[0] = MBA_SCSI_COMPLETION;
1146                 break;
1147         case MBA_CMPLT_3_16BIT:
1148                 handles[0] = mb[1];
1149                 handles[1] = mb[2];
1150                 handles[2] = mb[3];
1151                 handle_cnt = 3;
1152                 mb[0] = MBA_SCSI_COMPLETION;
1153                 break;
1154         case MBA_CMPLT_4_16BIT:
1155                 handles[0] = mb[1];
1156                 handles[1] = mb[2];
1157                 handles[2] = mb[3];
1158                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1159                 handle_cnt = 4;
1160                 mb[0] = MBA_SCSI_COMPLETION;
1161                 break;
1162         case MBA_CMPLT_5_16BIT:
1163                 handles[0] = mb[1];
1164                 handles[1] = mb[2];
1165                 handles[2] = mb[3];
1166                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1167                 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
1168                 handle_cnt = 5;
1169                 mb[0] = MBA_SCSI_COMPLETION;
1170                 break;
1171         case MBA_CMPLT_2_32BIT:
1172                 handles[0] = make_handle(mb[2], mb[1]);
1173                 handles[1] = make_handle(RD_MAILBOX_REG(ha, reg, 7),
1174                                          RD_MAILBOX_REG(ha, reg, 6));
1175                 handle_cnt = 2;
1176                 mb[0] = MBA_SCSI_COMPLETION;
1177                 break;
1178         default:
1179                 break;
1180         }
1181 skip_rio:
1182         switch (mb[0]) {
1183         case MBA_SCSI_COMPLETION:       /* Fast Post */
1184                 if (!vha->flags.online)
1185                         break;
1186
1187                 for (cnt = 0; cnt < handle_cnt; cnt++)
1188                         qla2x00_process_completed_request(vha, rsp->req,
1189                                 handles[cnt]);
1190                 break;
1191
1192         case MBA_RESET:                 /* Reset */
1193                 ql_dbg(ql_dbg_async, vha, 0x5002,
1194                     "Asynchronous RESET.\n");
1195
1196                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1197                 break;
1198
1199         case MBA_SYSTEM_ERR:            /* System Error */
1200                 mbx = 0;
1201
1202                 vha->hw_err_cnt++;
1203
1204                 if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
1205                     IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1206                         u16 m[4];
1207
1208                         m[0] = rd_reg_word(&reg24->mailbox4);
1209                         m[1] = rd_reg_word(&reg24->mailbox5);
1210                         m[2] = rd_reg_word(&reg24->mailbox6);
1211                         mbx = m[3] = rd_reg_word(&reg24->mailbox7);
1212
1213                         ql_log(ql_log_warn, vha, 0x5003,
1214                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh mbx4=%xh mbx5=%xh mbx6=%xh mbx7=%xh.\n",
1215                             mb[1], mb[2], mb[3], m[0], m[1], m[2], m[3]);
1216                 } else
1217                         ql_log(ql_log_warn, vha, 0x5003,
1218                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n ",
1219                             mb[1], mb[2], mb[3]);
1220
1221                 if ((IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
1222                     rd_reg_word(&reg24->mailbox7) & BIT_8)
1223                         ha->isp_ops->mpi_fw_dump(vha, 1);
1224                 ha->isp_ops->fw_dump(vha);
1225                 ha->flags.fw_init_done = 0;
1226                 QLA_FW_STOPPED(ha);
1227
1228                 if (IS_FWI2_CAPABLE(ha)) {
1229                         if (mb[1] == 0 && mb[2] == 0) {
1230                                 ql_log(ql_log_fatal, vha, 0x5004,
1231                                     "Unrecoverable Hardware Error: adapter "
1232                                     "marked OFFLINE!\n");
1233                                 vha->flags.online = 0;
1234                                 vha->device_flags |= DFLG_DEV_FAILED;
1235                         } else {
1236                                 /* Check to see if MPI timeout occurred */
1237                                 if ((mbx & MBX_3) && (ha->port_no == 0))
1238                                         set_bit(MPI_RESET_NEEDED,
1239                                             &vha->dpc_flags);
1240
1241                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1242                         }
1243                 } else if (mb[1] == 0) {
1244                         ql_log(ql_log_fatal, vha, 0x5005,
1245                             "Unrecoverable Hardware Error: adapter marked "
1246                             "OFFLINE!\n");
1247                         vha->flags.online = 0;
1248                         vha->device_flags |= DFLG_DEV_FAILED;
1249                 } else
1250                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1251                 break;
1252
1253         case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
1254                 ql_log(ql_log_warn, vha, 0x5006,
1255                     "ISP Request Transfer Error (%x).\n",  mb[1]);
1256
1257                 vha->hw_err_cnt++;
1258
1259                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1260                 break;
1261
1262         case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
1263                 ql_log(ql_log_warn, vha, 0x5007,
1264                     "ISP Response Transfer Error (%x).\n", mb[1]);
1265
1266                 vha->hw_err_cnt++;
1267
1268                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1269                 break;
1270
1271         case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
1272                 ql_dbg(ql_dbg_async, vha, 0x5008,
1273                     "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
1274                 break;
1275
1276         case MBA_LOOP_INIT_ERR:
1277                 ql_log(ql_log_warn, vha, 0x5090,
1278                     "LOOP INIT ERROR (%x).\n", mb[1]);
1279                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1280                 break;
1281
1282         case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
1283                 ha->flags.lip_ae = 1;
1284
1285                 ql_dbg(ql_dbg_async, vha, 0x5009,
1286                     "LIP occurred (%x).\n", mb[1]);
1287
1288                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1289                         atomic_set(&vha->loop_state, LOOP_DOWN);
1290                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1291                         qla2x00_mark_all_devices_lost(vha);
1292                 }
1293
1294                 if (vha->vp_idx) {
1295                         atomic_set(&vha->vp_state, VP_FAILED);
1296                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1297                 }
1298
1299                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1300                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1301
1302                 vha->flags.management_server_logged_in = 0;
1303                 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
1304                 break;
1305
1306         case MBA_LOOP_UP:               /* Loop Up Event */
1307                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
1308                         ha->link_data_rate = PORT_SPEED_1GB;
1309                 else
1310                         ha->link_data_rate = mb[1];
1311
1312                 ql_log(ql_log_info, vha, 0x500a,
1313                     "LOOP UP detected (%s Gbps).\n",
1314                     qla2x00_get_link_speed_str(ha, ha->link_data_rate));
1315
1316                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1317                         if (mb[2] & BIT_0)
1318                                 ql_log(ql_log_info, vha, 0x11a0,
1319                                     "FEC=enabled (link up).\n");
1320                 }
1321
1322                 vha->flags.management_server_logged_in = 0;
1323                 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
1324
1325                 if (vha->link_down_time < vha->hw->port_down_retry_count) {
1326                         vha->short_link_down_cnt++;
1327                         vha->link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
1328                 }
1329
1330                 break;
1331
1332         case MBA_LOOP_DOWN:             /* Loop Down Event */
1333                 SAVE_TOPO(ha);
1334                 ha->flags.lip_ae = 0;
1335                 ha->current_topology = 0;
1336                 vha->link_down_time = 0;
1337
1338                 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
1339                         ? rd_reg_word(&reg24->mailbox4) : 0;
1340                 mbx = (IS_P3P_TYPE(ha)) ? rd_reg_word(&reg82->mailbox_out[4])
1341                         : mbx;
1342                 ql_log(ql_log_info, vha, 0x500b,
1343                     "LOOP DOWN detected (%x %x %x %x).\n",
1344                     mb[1], mb[2], mb[3], mbx);
1345
1346                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1347                         atomic_set(&vha->loop_state, LOOP_DOWN);
1348                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1349                         /*
1350                          * In case of loop down, restore WWPN from
1351                          * NVRAM in case of FA-WWPN capable ISP
1352                          * Restore for Physical Port only
1353                          */
1354                         if (!vha->vp_idx) {
1355                                 if (ha->flags.fawwpn_enabled &&
1356                                     (ha->current_topology == ISP_CFG_F)) {
1357                                         void *wwpn = ha->init_cb->port_name;
1358
1359                                         memcpy(vha->port_name, wwpn, WWN_SIZE);
1360                                         fc_host_port_name(vha->host) =
1361                                             wwn_to_u64(vha->port_name);
1362                                         ql_dbg(ql_dbg_init + ql_dbg_verbose,
1363                                             vha, 0x00d8, "LOOP DOWN detected,"
1364                                             "restore WWPN %016llx\n",
1365                                             wwn_to_u64(vha->port_name));
1366                                 }
1367
1368                                 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
1369                         }
1370
1371                         vha->device_flags |= DFLG_NO_CABLE;
1372                         qla2x00_mark_all_devices_lost(vha);
1373                 }
1374
1375                 if (vha->vp_idx) {
1376                         atomic_set(&vha->vp_state, VP_FAILED);
1377                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1378                 }
1379
1380                 vha->flags.management_server_logged_in = 0;
1381                 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1382                 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
1383                 break;
1384
1385         case MBA_LIP_RESET:             /* LIP reset occurred */
1386                 ql_dbg(ql_dbg_async, vha, 0x500c,
1387                     "LIP reset occurred (%x).\n", mb[1]);
1388
1389                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1390                         atomic_set(&vha->loop_state, LOOP_DOWN);
1391                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
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, FC_VPORT_FAILED);
1398                 }
1399
1400                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1401
1402                 ha->operating_mode = LOOP;
1403                 vha->flags.management_server_logged_in = 0;
1404                 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
1405                 break;
1406
1407         /* case MBA_DCBX_COMPLETE: */
1408         case MBA_POINT_TO_POINT:        /* Point-to-Point */
1409                 ha->flags.lip_ae = 0;
1410
1411                 if (IS_QLA2100(ha))
1412                         break;
1413
1414                 if (IS_CNA_CAPABLE(ha)) {
1415                         ql_dbg(ql_dbg_async, vha, 0x500d,
1416                             "DCBX Completed -- %04x %04x %04x.\n",
1417                             mb[1], mb[2], mb[3]);
1418                         if (ha->notify_dcbx_comp && !vha->vp_idx)
1419                                 complete(&ha->dcbx_comp);
1420
1421                 } else
1422                         ql_dbg(ql_dbg_async, vha, 0x500e,
1423                             "Asynchronous P2P MODE received.\n");
1424
1425                 /*
1426                  * Until there's a transition from loop down to loop up, treat
1427                  * this as loop down only.
1428                  */
1429                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1430                         atomic_set(&vha->loop_state, LOOP_DOWN);
1431                         if (!atomic_read(&vha->loop_down_timer))
1432                                 atomic_set(&vha->loop_down_timer,
1433                                     LOOP_DOWN_TIME);
1434                         if (!N2N_TOPO(ha))
1435                                 qla2x00_mark_all_devices_lost(vha);
1436                 }
1437
1438                 if (vha->vp_idx) {
1439                         atomic_set(&vha->vp_state, VP_FAILED);
1440                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1441                 }
1442
1443                 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
1444                         set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1445
1446                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1447                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1448
1449                 vha->flags.management_server_logged_in = 0;
1450                 break;
1451
1452         case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
1453                 if (IS_QLA2100(ha))
1454                         break;
1455
1456                 ql_dbg(ql_dbg_async, vha, 0x500f,
1457                     "Configuration change detected: value=%x.\n", mb[1]);
1458
1459                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1460                         atomic_set(&vha->loop_state, LOOP_DOWN);
1461                         if (!atomic_read(&vha->loop_down_timer))
1462                                 atomic_set(&vha->loop_down_timer,
1463                                     LOOP_DOWN_TIME);
1464                         qla2x00_mark_all_devices_lost(vha);
1465                 }
1466
1467                 if (vha->vp_idx) {
1468                         atomic_set(&vha->vp_state, VP_FAILED);
1469                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1470                 }
1471
1472                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1473                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1474                 break;
1475
1476         case MBA_PORT_UPDATE:           /* Port database update */
1477                 /*
1478                  * Handle only global and vn-port update events
1479                  *
1480                  * Relevant inputs:
1481                  * mb[1] = N_Port handle of changed port
1482                  * OR 0xffff for global event
1483                  * mb[2] = New login state
1484                  * 7 = Port logged out
1485                  * mb[3] = LSB is vp_idx, 0xff = all vps
1486                  *
1487                  * Skip processing if:
1488                  *       Event is global, vp_idx is NOT all vps,
1489                  *           vp_idx does not match
1490                  *       Event is not global, vp_idx does not match
1491                  */
1492                 if (IS_QLA2XXX_MIDTYPE(ha) &&
1493                     ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
1494                         (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
1495                         break;
1496
1497                 if (mb[2] == 0x7) {
1498                         ql_dbg(ql_dbg_async, vha, 0x5010,
1499                             "Port %s %04x %04x %04x.\n",
1500                             mb[1] == 0xffff ? "unavailable" : "logout",
1501                             mb[1], mb[2], mb[3]);
1502
1503                         if (mb[1] == 0xffff)
1504                                 goto global_port_update;
1505
1506                         if (mb[1] == NPH_SNS_LID(ha)) {
1507                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1508                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1509                                 break;
1510                         }
1511
1512                         /* use handle_cnt for loop id/nport handle */
1513                         if (IS_FWI2_CAPABLE(ha))
1514                                 handle_cnt = NPH_SNS;
1515                         else
1516                                 handle_cnt = SIMPLE_NAME_SERVER;
1517                         if (mb[1] == handle_cnt) {
1518                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1519                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1520                                 break;
1521                         }
1522
1523                         /* Port logout */
1524                         fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1525                         if (!fcport)
1526                                 break;
1527                         if (atomic_read(&fcport->state) != FCS_ONLINE)
1528                                 break;
1529                         ql_dbg(ql_dbg_async, vha, 0x508a,
1530                             "Marking port lost loopid=%04x portid=%06x.\n",
1531                             fcport->loop_id, fcport->d_id.b24);
1532                         if (qla_ini_mode_enabled(vha)) {
1533                                 fcport->logout_on_delete = 0;
1534                                 qlt_schedule_sess_for_deletion(fcport);
1535                         }
1536                         break;
1537
1538 global_port_update:
1539                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1540                                 atomic_set(&vha->loop_state, LOOP_DOWN);
1541                                 atomic_set(&vha->loop_down_timer,
1542                                     LOOP_DOWN_TIME);
1543                                 vha->device_flags |= DFLG_NO_CABLE;
1544                                 qla2x00_mark_all_devices_lost(vha);
1545                         }
1546
1547                         if (vha->vp_idx) {
1548                                 atomic_set(&vha->vp_state, VP_FAILED);
1549                                 fc_vport_set_state(vha->fc_vport,
1550                                     FC_VPORT_FAILED);
1551                                 qla2x00_mark_all_devices_lost(vha);
1552                         }
1553
1554                         vha->flags.management_server_logged_in = 0;
1555                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1556                         break;
1557                 }
1558
1559                 /*
1560                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1561                  * event etc. earlier indicating loop is down) then process
1562                  * it.  Otherwise ignore it and Wait for RSCN to come in.
1563                  */
1564                 atomic_set(&vha->loop_down_timer, 0);
1565                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1566                         !ha->flags.n2n_ae  &&
1567                     atomic_read(&vha->loop_state) != LOOP_DEAD) {
1568                         ql_dbg(ql_dbg_async, vha, 0x5011,
1569                             "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1570                             mb[1], mb[2], mb[3]);
1571                         break;
1572                 }
1573
1574                 ql_dbg(ql_dbg_async, vha, 0x5012,
1575                     "Port database changed %04x %04x %04x.\n",
1576                     mb[1], mb[2], mb[3]);
1577
1578                 /*
1579                  * Mark all devices as missing so we will login again.
1580                  */
1581                 atomic_set(&vha->loop_state, LOOP_UP);
1582                 vha->scan.scan_retry = 0;
1583
1584                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1585                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1586                 set_bit(VP_CONFIG_OK, &vha->vp_flags);
1587                 break;
1588
1589         case MBA_RSCN_UPDATE:           /* State Change Registration */
1590                 /* Check if the Vport has issued a SCR */
1591                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1592                         break;
1593                 /* Only handle SCNs for our Vport index. */
1594                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1595                         break;
1596
1597                 ql_log(ql_log_warn, vha, 0x5013,
1598                        "RSCN database changed -- %04x %04x %04x.\n",
1599                        mb[1], mb[2], mb[3]);
1600
1601                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1602                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1603                                 | vha->d_id.b.al_pa;
1604                 if (rscn_entry == host_pid) {
1605                         ql_dbg(ql_dbg_async, vha, 0x5014,
1606                             "Ignoring RSCN update to local host "
1607                             "port ID (%06x).\n", host_pid);
1608                         break;
1609                 }
1610
1611                 /* Ignore reserved bits from RSCN-payload. */
1612                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1613
1614                 /* Skip RSCNs for virtual ports on the same physical port */
1615                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1616                         break;
1617
1618                 atomic_set(&vha->loop_down_timer, 0);
1619                 vha->flags.management_server_logged_in = 0;
1620                 {
1621                         struct event_arg ea;
1622
1623                         memset(&ea, 0, sizeof(ea));
1624                         ea.id.b24 = rscn_entry;
1625                         ea.id.b.rsvd_1 = rscn_entry >> 24;
1626                         qla2x00_handle_rscn(vha, &ea);
1627                         qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1628                 }
1629                 break;
1630         case MBA_CONGN_NOTI_RECV:
1631                 if (!ha->flags.scm_enabled ||
1632                     mb[1] != QLA_CON_PRIMITIVE_RECEIVED)
1633                         break;
1634
1635                 if (mb[2] == QLA_CONGESTION_ARB_WARNING) {
1636                         ql_dbg(ql_dbg_async, vha, 0x509b,
1637                                "Congestion Warning %04x %04x.\n", mb[1], mb[2]);
1638                 } else if (mb[2] == QLA_CONGESTION_ARB_ALARM) {
1639                         ql_log(ql_log_warn, vha, 0x509b,
1640                                "Congestion Alarm %04x %04x.\n", mb[1], mb[2]);
1641                 }
1642                 break;
1643         /* case MBA_RIO_RESPONSE: */
1644         case MBA_ZIO_RESPONSE:
1645                 ql_dbg(ql_dbg_async, vha, 0x5015,
1646                     "[R|Z]IO update completion.\n");
1647
1648                 if (IS_FWI2_CAPABLE(ha))
1649                         qla24xx_process_response_queue(vha, rsp);
1650                 else
1651                         qla2x00_process_response_queue(rsp);
1652                 break;
1653
1654         case MBA_DISCARD_RND_FRAME:
1655                 ql_dbg(ql_dbg_async, vha, 0x5016,
1656                     "Discard RND Frame -- %04x %04x %04x.\n",
1657                     mb[1], mb[2], mb[3]);
1658                 vha->interface_err_cnt++;
1659                 break;
1660
1661         case MBA_TRACE_NOTIFICATION:
1662                 ql_dbg(ql_dbg_async, vha, 0x5017,
1663                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1664                 break;
1665
1666         case MBA_ISP84XX_ALERT:
1667                 ql_dbg(ql_dbg_async, vha, 0x5018,
1668                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1669                     mb[1], mb[2], mb[3]);
1670
1671                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1672                 switch (mb[1]) {
1673                 case A84_PANIC_RECOVERY:
1674                         ql_log(ql_log_info, vha, 0x5019,
1675                             "Alert 84XX: panic recovery %04x %04x.\n",
1676                             mb[2], mb[3]);
1677                         break;
1678                 case A84_OP_LOGIN_COMPLETE:
1679                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1680                         ql_log(ql_log_info, vha, 0x501a,
1681                             "Alert 84XX: firmware version %x.\n",
1682                             ha->cs84xx->op_fw_version);
1683                         break;
1684                 case A84_DIAG_LOGIN_COMPLETE:
1685                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1686                         ql_log(ql_log_info, vha, 0x501b,
1687                             "Alert 84XX: diagnostic firmware version %x.\n",
1688                             ha->cs84xx->diag_fw_version);
1689                         break;
1690                 case A84_GOLD_LOGIN_COMPLETE:
1691                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1692                         ha->cs84xx->fw_update = 1;
1693                         ql_log(ql_log_info, vha, 0x501c,
1694                             "Alert 84XX: gold firmware version %x.\n",
1695                             ha->cs84xx->gold_fw_version);
1696                         break;
1697                 default:
1698                         ql_log(ql_log_warn, vha, 0x501d,
1699                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1700                             mb[1], mb[2], mb[3]);
1701                 }
1702                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1703                 break;
1704         case MBA_DCBX_START:
1705                 ql_dbg(ql_dbg_async, vha, 0x501e,
1706                     "DCBX Started -- %04x %04x %04x.\n",
1707                     mb[1], mb[2], mb[3]);
1708                 break;
1709         case MBA_DCBX_PARAM_UPDATE:
1710                 ql_dbg(ql_dbg_async, vha, 0x501f,
1711                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1712                     mb[1], mb[2], mb[3]);
1713                 break;
1714         case MBA_FCF_CONF_ERR:
1715                 ql_dbg(ql_dbg_async, vha, 0x5020,
1716                     "FCF Configuration Error -- %04x %04x %04x.\n",
1717                     mb[1], mb[2], mb[3]);
1718                 break;
1719         case MBA_IDC_NOTIFY:
1720                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1721                         mb[4] = rd_reg_word(&reg24->mailbox4);
1722                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1723                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1724                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1725                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1726                                 /*
1727                                  * Extend loop down timer since port is active.
1728                                  */
1729                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1730                                         atomic_set(&vha->loop_down_timer,
1731                                             LOOP_DOWN_TIME);
1732                                 qla2xxx_wake_dpc(vha);
1733                         }
1734                 }
1735                 fallthrough;
1736         case MBA_IDC_COMPLETE:
1737                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1738                         complete(&ha->lb_portup_comp);
1739                 fallthrough;
1740         case MBA_IDC_TIME_EXT:
1741                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1742                     IS_QLA8044(ha))
1743                         qla81xx_idc_event(vha, mb[0], mb[1]);
1744                 break;
1745
1746         case MBA_IDC_AEN:
1747                 if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1748                         vha->hw_err_cnt++;
1749                         qla27xx_handle_8200_aen(vha, mb);
1750                 } else if (IS_QLA83XX(ha)) {
1751                         mb[4] = rd_reg_word(&reg24->mailbox4);
1752                         mb[5] = rd_reg_word(&reg24->mailbox5);
1753                         mb[6] = rd_reg_word(&reg24->mailbox6);
1754                         mb[7] = rd_reg_word(&reg24->mailbox7);
1755                         qla83xx_handle_8200_aen(vha, mb);
1756                 } else {
1757                         ql_dbg(ql_dbg_async, vha, 0x5052,
1758                             "skip Heartbeat processing mb0-3=[0x%04x] [0x%04x] [0x%04x] [0x%04x]\n",
1759                             mb[0], mb[1], mb[2], mb[3]);
1760                 }
1761                 break;
1762
1763         case MBA_DPORT_DIAGNOSTICS:
1764                 ql_dbg(ql_dbg_async, vha, 0x5052,
1765                     "D-Port Diagnostics: %04x %04x %04x %04x\n",
1766                     mb[0], mb[1], mb[2], mb[3]);
1767                 memcpy(vha->dport_data, mb, sizeof(vha->dport_data));
1768                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1769                         static char *results[] = {
1770                             "start", "done(pass)", "done(error)", "undefined" };
1771                         static char *types[] = {
1772                             "none", "dynamic", "static", "other" };
1773                         uint result = mb[1] >> 0 & 0x3;
1774                         uint type = mb[1] >> 6 & 0x3;
1775                         uint sw = mb[1] >> 15 & 0x1;
1776                         ql_dbg(ql_dbg_async, vha, 0x5052,
1777                             "D-Port Diagnostics: result=%s type=%s [sw=%u]\n",
1778                             results[result], types[type], sw);
1779                         if (result == 2) {
1780                                 static char *reasons[] = {
1781                                     "reserved", "unexpected reject",
1782                                     "unexpected phase", "retry exceeded",
1783                                     "timed out", "not supported",
1784                                     "user stopped" };
1785                                 uint reason = mb[2] >> 0 & 0xf;
1786                                 uint phase = mb[2] >> 12 & 0xf;
1787                                 ql_dbg(ql_dbg_async, vha, 0x5052,
1788                                     "D-Port Diagnostics: reason=%s phase=%u \n",
1789                                     reason < 7 ? reasons[reason] : "other",
1790                                     phase >> 1);
1791                         }
1792                 }
1793                 break;
1794
1795         case MBA_TEMPERATURE_ALERT:
1796                 ql_dbg(ql_dbg_async, vha, 0x505e,
1797                     "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1798                 break;
1799
1800         case MBA_TRANS_INSERT:
1801                 ql_dbg(ql_dbg_async, vha, 0x5091,
1802                     "Transceiver Insertion: %04x\n", mb[1]);
1803                 set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
1804                 break;
1805
1806         case MBA_TRANS_REMOVE:
1807                 ql_dbg(ql_dbg_async, vha, 0x5091, "Transceiver Removal\n");
1808                 break;
1809
1810         default:
1811                 ql_dbg(ql_dbg_async, vha, 0x5057,
1812                     "Unknown AEN:%04x %04x %04x %04x\n",
1813                     mb[0], mb[1], mb[2], mb[3]);
1814         }
1815
1816         qlt_async_event(mb[0], vha, mb);
1817
1818         if (!vha->vp_idx && ha->num_vhosts)
1819                 qla2x00_alert_all_vps(rsp, mb);
1820 }
1821
1822 /**
1823  * qla2x00_process_completed_request() - Process a Fast Post response.
1824  * @vha: SCSI driver HA context
1825  * @req: request queue
1826  * @index: SRB index
1827  */
1828 void
1829 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1830                                   struct req_que *req, uint32_t index)
1831 {
1832         srb_t *sp;
1833         struct qla_hw_data *ha = vha->hw;
1834
1835         /* Validate handle. */
1836         if (index >= req->num_outstanding_cmds) {
1837                 ql_log(ql_log_warn, vha, 0x3014,
1838                     "Invalid SCSI command index (%x).\n", index);
1839
1840                 if (IS_P3P_TYPE(ha))
1841                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1842                 else
1843                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1844                 return;
1845         }
1846
1847         sp = req->outstanding_cmds[index];
1848         if (sp) {
1849                 /* Free outstanding command slot. */
1850                 req->outstanding_cmds[index] = NULL;
1851
1852                 /* Save ISP completion status */
1853                 sp->done(sp, DID_OK << 16);
1854         } else {
1855                 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1856
1857                 if (IS_P3P_TYPE(ha))
1858                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1859                 else
1860                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1861         }
1862 }
1863
1864 srb_t *
1865 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1866     struct req_que *req, void *iocb)
1867 {
1868         struct qla_hw_data *ha = vha->hw;
1869         sts_entry_t *pkt = iocb;
1870         srb_t *sp;
1871         uint16_t index;
1872
1873         if (pkt->handle == QLA_SKIP_HANDLE)
1874                 return NULL;
1875
1876         index = LSW(pkt->handle);
1877         if (index >= req->num_outstanding_cmds) {
1878                 ql_log(ql_log_warn, vha, 0x5031,
1879                            "%s: Invalid command index (%x) type %8ph.\n",
1880                            func, index, iocb);
1881                 if (IS_P3P_TYPE(ha))
1882                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1883                 else
1884                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1885                 return NULL;
1886         }
1887         sp = req->outstanding_cmds[index];
1888         if (!sp) {
1889                 ql_log(ql_log_warn, vha, 0x5032,
1890                         "%s: Invalid completion handle (%x) -- timed-out.\n",
1891                         func, index);
1892                 return NULL;
1893         }
1894         if (sp->handle != index) {
1895                 ql_log(ql_log_warn, vha, 0x5033,
1896                         "%s: SRB handle (%x) mismatch %x.\n", func,
1897                         sp->handle, index);
1898                 return NULL;
1899         }
1900
1901         req->outstanding_cmds[index] = NULL;
1902         return sp;
1903 }
1904
1905 static void
1906 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1907     struct mbx_entry *mbx)
1908 {
1909         const char func[] = "MBX-IOCB";
1910         const char *type;
1911         fc_port_t *fcport;
1912         srb_t *sp;
1913         struct srb_iocb *lio;
1914         uint16_t *data;
1915         uint16_t status;
1916
1917         sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1918         if (!sp)
1919                 return;
1920
1921         lio = &sp->u.iocb_cmd;
1922         type = sp->name;
1923         fcport = sp->fcport;
1924         data = lio->u.logio.data;
1925
1926         data[0] = MBS_COMMAND_ERROR;
1927         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1928             QLA_LOGIO_LOGIN_RETRIED : 0;
1929         if (mbx->entry_status) {
1930                 ql_dbg(ql_dbg_async, vha, 0x5043,
1931                     "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1932                     "entry-status=%x status=%x state-flag=%x "
1933                     "status-flags=%x.\n", type, sp->handle,
1934                     fcport->d_id.b.domain, fcport->d_id.b.area,
1935                     fcport->d_id.b.al_pa, mbx->entry_status,
1936                     le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1937                     le16_to_cpu(mbx->status_flags));
1938
1939                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1940                     mbx, sizeof(*mbx));
1941
1942                 goto logio_done;
1943         }
1944
1945         status = le16_to_cpu(mbx->status);
1946         if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1947             le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1948                 status = 0;
1949         if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1950                 ql_dbg(ql_dbg_async, vha, 0x5045,
1951                     "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1952                     type, sp->handle, fcport->d_id.b.domain,
1953                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1954                     le16_to_cpu(mbx->mb1));
1955
1956                 data[0] = MBS_COMMAND_COMPLETE;
1957                 if (sp->type == SRB_LOGIN_CMD) {
1958                         fcport->port_type = FCT_TARGET;
1959                         if (le16_to_cpu(mbx->mb1) & BIT_0)
1960                                 fcport->port_type = FCT_INITIATOR;
1961                         else if (le16_to_cpu(mbx->mb1) & BIT_1)
1962                                 fcport->flags |= FCF_FCP2_DEVICE;
1963                 }
1964                 goto logio_done;
1965         }
1966
1967         data[0] = le16_to_cpu(mbx->mb0);
1968         switch (data[0]) {
1969         case MBS_PORT_ID_USED:
1970                 data[1] = le16_to_cpu(mbx->mb1);
1971                 break;
1972         case MBS_LOOP_ID_USED:
1973                 break;
1974         default:
1975                 data[0] = MBS_COMMAND_ERROR;
1976                 break;
1977         }
1978
1979         ql_log(ql_log_warn, vha, 0x5046,
1980             "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1981             "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1982             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1983             status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1984             le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1985             le16_to_cpu(mbx->mb7));
1986
1987 logio_done:
1988         sp->done(sp, 0);
1989 }
1990
1991 static void
1992 qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1993     struct mbx_24xx_entry *pkt)
1994 {
1995         const char func[] = "MBX-IOCB2";
1996         struct qla_hw_data *ha = vha->hw;
1997         srb_t *sp;
1998         struct srb_iocb *si;
1999         u16 sz, i;
2000         int res;
2001
2002         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2003         if (!sp)
2004                 return;
2005
2006         if (sp->type == SRB_SCSI_CMD ||
2007             sp->type == SRB_NVME_CMD ||
2008             sp->type == SRB_TM_CMD) {
2009                 ql_log(ql_log_warn, vha, 0x509d,
2010                         "Inconsistent event entry type %d\n", sp->type);
2011                 if (IS_P3P_TYPE(ha))
2012                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2013                 else
2014                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2015                 return;
2016         }
2017
2018         si = &sp->u.iocb_cmd;
2019         sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
2020
2021         for (i = 0; i < sz; i++)
2022                 si->u.mbx.in_mb[i] = pkt->mb[i];
2023
2024         res = (si->u.mbx.in_mb[0] & MBS_MASK);
2025
2026         sp->done(sp, res);
2027 }
2028
2029 static void
2030 qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2031     struct nack_to_isp *pkt)
2032 {
2033         const char func[] = "nack";
2034         srb_t *sp;
2035         int res = 0;
2036
2037         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2038         if (!sp)
2039                 return;
2040
2041         if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
2042                 res = QLA_FUNCTION_FAILED;
2043
2044         sp->done(sp, res);
2045 }
2046
2047 static void
2048 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
2049     sts_entry_t *pkt, int iocb_type)
2050 {
2051         const char func[] = "CT_IOCB";
2052         const char *type;
2053         srb_t *sp;
2054         struct bsg_job *bsg_job;
2055         struct fc_bsg_reply *bsg_reply;
2056         uint16_t comp_status;
2057         int res = 0;
2058
2059         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2060         if (!sp)
2061                 return;
2062
2063         switch (sp->type) {
2064         case SRB_CT_CMD:
2065             bsg_job = sp->u.bsg_job;
2066             bsg_reply = bsg_job->reply;
2067
2068             type = "ct pass-through";
2069
2070             comp_status = le16_to_cpu(pkt->comp_status);
2071
2072             /*
2073              * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
2074              * fc payload  to the caller
2075              */
2076             bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
2077             bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2078
2079             if (comp_status != CS_COMPLETE) {
2080                     if (comp_status == CS_DATA_UNDERRUN) {
2081                             res = DID_OK << 16;
2082                             bsg_reply->reply_payload_rcv_len =
2083                                 le16_to_cpu(pkt->rsp_info_len);
2084
2085                             ql_log(ql_log_warn, vha, 0x5048,
2086                                 "CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
2087                                 type, comp_status,
2088                                 bsg_reply->reply_payload_rcv_len);
2089                     } else {
2090                             ql_log(ql_log_warn, vha, 0x5049,
2091                                 "CT pass-through-%s error comp_status=0x%x.\n",
2092                                 type, comp_status);
2093                             res = DID_ERROR << 16;
2094                             bsg_reply->reply_payload_rcv_len = 0;
2095                     }
2096                     ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
2097                         pkt, sizeof(*pkt));
2098             } else {
2099                     res = DID_OK << 16;
2100                     bsg_reply->reply_payload_rcv_len =
2101                         bsg_job->reply_payload.payload_len;
2102                     bsg_job->reply_len = 0;
2103             }
2104             break;
2105         case SRB_CT_PTHRU_CMD:
2106             /*
2107              * borrowing sts_entry_24xx.comp_status.
2108              * same location as ct_entry_24xx.comp_status
2109              */
2110              res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
2111                  (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
2112                  sp->name);
2113              break;
2114         }
2115
2116         sp->done(sp, res);
2117 }
2118
2119 static void
2120 qla24xx_els_ct_entry(scsi_qla_host_t *v, struct req_que *req,
2121     struct sts_entry_24xx *pkt, int iocb_type)
2122 {
2123         struct els_sts_entry_24xx *ese = (struct els_sts_entry_24xx *)pkt;
2124         const char func[] = "ELS_CT_IOCB";
2125         const char *type;
2126         srb_t *sp;
2127         struct bsg_job *bsg_job;
2128         struct fc_bsg_reply *bsg_reply;
2129         uint16_t comp_status;
2130         uint32_t fw_status[3];
2131         int res, logit = 1;
2132         struct srb_iocb *els;
2133         uint n;
2134         scsi_qla_host_t *vha;
2135         struct els_sts_entry_24xx *e = (struct els_sts_entry_24xx *)pkt;
2136
2137         sp = qla2x00_get_sp_from_handle(v, func, req, pkt);
2138         if (!sp)
2139                 return;
2140         bsg_job = sp->u.bsg_job;
2141         vha = sp->vha;
2142
2143         type = NULL;
2144
2145         comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
2146         fw_status[1] = le32_to_cpu(((struct els_sts_entry_24xx *)pkt)->error_subcode_1);
2147         fw_status[2] = le32_to_cpu(((struct els_sts_entry_24xx *)pkt)->error_subcode_2);
2148
2149         switch (sp->type) {
2150         case SRB_ELS_CMD_RPT:
2151         case SRB_ELS_CMD_HST:
2152                 type = "rpt hst";
2153                 break;
2154         case SRB_ELS_CMD_HST_NOLOGIN:
2155                 type = "els";
2156                 {
2157                         struct els_entry_24xx *els = (void *)pkt;
2158                         struct qla_bsg_auth_els_request *p =
2159                                 (struct qla_bsg_auth_els_request *)bsg_job->request;
2160
2161                         ql_dbg(ql_dbg_user, vha, 0x700f,
2162                              "%s %s. portid=%02x%02x%02x status %x xchg %x bsg ptr %p\n",
2163                              __func__, sc_to_str(p->e.sub_cmd),
2164                              e->d_id[2], e->d_id[1], e->d_id[0],
2165                              comp_status, p->e.extra_rx_xchg_address, bsg_job);
2166
2167                         if (!(le16_to_cpu(els->control_flags) & ECF_PAYLOAD_DESCR_MASK)) {
2168                                 if (sp->remap.remapped) {
2169                                         n = sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2170                                                 bsg_job->reply_payload.sg_cnt,
2171                                                 sp->remap.rsp.buf,
2172                                                 sp->remap.rsp.len);
2173                                         ql_dbg(ql_dbg_user + ql_dbg_verbose, vha, 0x700e,
2174                                            "%s: SG copied %x of %x\n",
2175                                            __func__, n, sp->remap.rsp.len);
2176                                 } else {
2177                                         ql_dbg(ql_dbg_user, vha, 0x700f,
2178                                            "%s: NOT REMAPPED (error)...!!!\n",
2179                                            __func__);
2180                                 }
2181                         }
2182                 }
2183                 break;
2184         case SRB_CT_CMD:
2185                 type = "ct pass-through";
2186                 break;
2187         case SRB_ELS_DCMD:
2188                 type = "Driver ELS logo";
2189                 if (iocb_type != ELS_IOCB_TYPE) {
2190                         ql_dbg(ql_dbg_user, vha, 0x5047,
2191                             "Completing %s: (%p) type=%d.\n",
2192                             type, sp, sp->type);
2193                         sp->done(sp, 0);
2194                         return;
2195                 }
2196                 break;
2197         case SRB_CT_PTHRU_CMD:
2198                 /* borrowing sts_entry_24xx.comp_status.
2199                    same location as ct_entry_24xx.comp_status
2200                  */
2201                 res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
2202                         (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
2203                         sp->name);
2204                 sp->done(sp, res);
2205                 return;
2206         default:
2207                 ql_dbg(ql_dbg_user, vha, 0x503e,
2208                     "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
2209                 return;
2210         }
2211
2212         if (iocb_type == ELS_IOCB_TYPE) {
2213                 els = &sp->u.iocb_cmd;
2214                 els->u.els_plogi.fw_status[0] = cpu_to_le32(fw_status[0]);
2215                 els->u.els_plogi.fw_status[1] = cpu_to_le32(fw_status[1]);
2216                 els->u.els_plogi.fw_status[2] = cpu_to_le32(fw_status[2]);
2217                 els->u.els_plogi.comp_status = cpu_to_le16(fw_status[0]);
2218                 if (comp_status == CS_COMPLETE) {
2219                         res =  DID_OK << 16;
2220                 } else {
2221                         if (comp_status == CS_DATA_UNDERRUN) {
2222                                 res =  DID_OK << 16;
2223                                 els->u.els_plogi.len = cpu_to_le16(le32_to_cpu(
2224                                         ese->total_byte_count));
2225
2226                                 if (sp->remap.remapped &&
2227                                     ((u8 *)sp->remap.rsp.buf)[0] == ELS_LS_ACC) {
2228                                         ql_dbg(ql_dbg_user, vha, 0x503f,
2229                                             "%s IOCB Done LS_ACC %02x%02x%02x -> %02x%02x%02x",
2230                                             __func__, e->s_id[0], e->s_id[2], e->s_id[1],
2231                                             e->d_id[2], e->d_id[1], e->d_id[0]);
2232                                         logit = 0;
2233                                 }
2234
2235                         } else if (comp_status == CS_PORT_LOGGED_OUT) {
2236                                 ql_dbg(ql_dbg_disc, vha, 0x911e,
2237                                        "%s %d schedule session deletion\n",
2238                                        __func__, __LINE__);
2239
2240                                 els->u.els_plogi.len = 0;
2241                                 res = DID_IMM_RETRY << 16;
2242                                 qlt_schedule_sess_for_deletion(sp->fcport);
2243                         } else {
2244                                 els->u.els_plogi.len = 0;
2245                                 res = DID_ERROR << 16;
2246                         }
2247
2248                         if (logit) {
2249                                 if (sp->remap.remapped &&
2250                                     ((u8 *)sp->remap.rsp.buf)[0] == ELS_LS_RJT) {
2251                                         ql_dbg(ql_dbg_user, vha, 0x503f,
2252                                             "%s IOCB Done LS_RJT hdl=%x comp_status=0x%x\n",
2253                                             type, sp->handle, comp_status);
2254
2255                                         ql_dbg(ql_dbg_user, vha, 0x503f,
2256                                             "subcode 1=0x%x subcode 2=0x%x bytes=0x%x %02x%02x%02x -> %02x%02x%02x\n",
2257                                             fw_status[1], fw_status[2],
2258                                             le32_to_cpu(((struct els_sts_entry_24xx *)
2259                                                 pkt)->total_byte_count),
2260                                             e->s_id[0], e->s_id[2], e->s_id[1],
2261                                             e->d_id[2], e->d_id[1], e->d_id[0]);
2262                                 } else {
2263                                         ql_log(ql_log_info, vha, 0x503f,
2264                                             "%s IOCB Done hdl=%x comp_status=0x%x\n",
2265                                             type, sp->handle, comp_status);
2266                                         ql_log(ql_log_info, vha, 0x503f,
2267                                             "subcode 1=0x%x subcode 2=0x%x bytes=0x%x %02x%02x%02x -> %02x%02x%02x\n",
2268                                             fw_status[1], fw_status[2],
2269                                             le32_to_cpu(((struct els_sts_entry_24xx *)
2270                                                 pkt)->total_byte_count),
2271                                             e->s_id[0], e->s_id[2], e->s_id[1],
2272                                             e->d_id[2], e->d_id[1], e->d_id[0]);
2273                                 }
2274                         }
2275                 }
2276                 goto els_ct_done;
2277         }
2278
2279         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
2280          * fc payload  to the caller
2281          */
2282         bsg_job = sp->u.bsg_job;
2283         bsg_reply = bsg_job->reply;
2284         bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
2285         bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
2286
2287         if (comp_status != CS_COMPLETE) {
2288                 if (comp_status == CS_DATA_UNDERRUN) {
2289                         res = DID_OK << 16;
2290                         bsg_reply->reply_payload_rcv_len =
2291                                 le32_to_cpu(ese->total_byte_count);
2292
2293                         ql_dbg(ql_dbg_user, vha, 0x503f,
2294                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2295                             "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
2296                             type, sp->handle, comp_status, fw_status[1], fw_status[2],
2297                             le32_to_cpu(ese->total_byte_count));
2298                 } else {
2299                         ql_dbg(ql_dbg_user, vha, 0x5040,
2300                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2301                             "error subcode 1=0x%x error subcode 2=0x%x.\n",
2302                             type, sp->handle, comp_status,
2303                             le32_to_cpu(ese->error_subcode_1),
2304                             le32_to_cpu(ese->error_subcode_2));
2305                         res = DID_ERROR << 16;
2306                         bsg_reply->reply_payload_rcv_len = 0;
2307                 }
2308                 memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
2309                        fw_status, sizeof(fw_status));
2310                 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
2311                     pkt, sizeof(*pkt));
2312         }
2313         else {
2314                 res =  DID_OK << 16;
2315                 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
2316                 bsg_job->reply_len = 0;
2317         }
2318 els_ct_done:
2319
2320         sp->done(sp, res);
2321 }
2322
2323 static void
2324 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
2325     struct logio_entry_24xx *logio)
2326 {
2327         const char func[] = "LOGIO-IOCB";
2328         const char *type;
2329         fc_port_t *fcport;
2330         srb_t *sp;
2331         struct srb_iocb *lio;
2332         uint16_t *data;
2333         uint32_t iop[2];
2334         int logit = 1;
2335
2336         sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
2337         if (!sp)
2338                 return;
2339
2340         lio = &sp->u.iocb_cmd;
2341         type = sp->name;
2342         fcport = sp->fcport;
2343         data = lio->u.logio.data;
2344
2345         data[0] = MBS_COMMAND_ERROR;
2346         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
2347                 QLA_LOGIO_LOGIN_RETRIED : 0;
2348         if (logio->entry_status) {
2349                 ql_log(ql_log_warn, fcport->vha, 0x5034,
2350                     "Async-%s error entry - %8phC hdl=%x"
2351                     "portid=%02x%02x%02x entry-status=%x.\n",
2352                     type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
2353                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
2354                     logio->entry_status);
2355                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
2356                     logio, sizeof(*logio));
2357
2358                 goto logio_done;
2359         }
2360
2361         if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
2362                 ql_dbg(ql_dbg_async, sp->vha, 0x5036,
2363                     "Async-%s complete: handle=%x pid=%06x wwpn=%8phC iop0=%x\n",
2364                     type, sp->handle, fcport->d_id.b24, fcport->port_name,
2365                     le32_to_cpu(logio->io_parameter[0]));
2366
2367                 vha->hw->exch_starvation = 0;
2368                 data[0] = MBS_COMMAND_COMPLETE;
2369
2370                 if (sp->type == SRB_PRLI_CMD) {
2371                         lio->u.logio.iop[0] =
2372                             le32_to_cpu(logio->io_parameter[0]);
2373                         lio->u.logio.iop[1] =
2374                             le32_to_cpu(logio->io_parameter[1]);
2375                         goto logio_done;
2376                 }
2377
2378                 if (sp->type != SRB_LOGIN_CMD)
2379                         goto logio_done;
2380
2381                 lio->u.logio.iop[1] = le32_to_cpu(logio->io_parameter[5]);
2382                 if (le32_to_cpu(logio->io_parameter[5]) & LIO_COMM_FEAT_FCSP)
2383                         fcport->flags |= FCF_FCSP_DEVICE;
2384
2385                 iop[0] = le32_to_cpu(logio->io_parameter[0]);
2386                 if (iop[0] & BIT_4) {
2387                         fcport->port_type = FCT_TARGET;
2388                         if (iop[0] & BIT_8)
2389                                 fcport->flags |= FCF_FCP2_DEVICE;
2390                 } else if (iop[0] & BIT_5)
2391                         fcport->port_type = FCT_INITIATOR;
2392
2393                 if (iop[0] & BIT_7)
2394                         fcport->flags |= FCF_CONF_COMP_SUPPORTED;
2395
2396                 if (logio->io_parameter[7] || logio->io_parameter[8])
2397                         fcport->supported_classes |= FC_COS_CLASS2;
2398                 if (logio->io_parameter[9] || logio->io_parameter[10])
2399                         fcport->supported_classes |= FC_COS_CLASS3;
2400
2401                 goto logio_done;
2402         }
2403
2404         iop[0] = le32_to_cpu(logio->io_parameter[0]);
2405         iop[1] = le32_to_cpu(logio->io_parameter[1]);
2406         lio->u.logio.iop[0] = iop[0];
2407         lio->u.logio.iop[1] = iop[1];
2408         switch (iop[0]) {
2409         case LSC_SCODE_PORTID_USED:
2410                 data[0] = MBS_PORT_ID_USED;
2411                 data[1] = LSW(iop[1]);
2412                 logit = 0;
2413                 break;
2414         case LSC_SCODE_NPORT_USED:
2415                 data[0] = MBS_LOOP_ID_USED;
2416                 logit = 0;
2417                 break;
2418         case LSC_SCODE_CMD_FAILED:
2419                 if (iop[1] == 0x0606) {
2420                         /*
2421                          * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
2422                          * Target side acked.
2423                          */
2424                         data[0] = MBS_COMMAND_COMPLETE;
2425                         goto logio_done;
2426                 }
2427                 data[0] = MBS_COMMAND_ERROR;
2428                 break;
2429         case LSC_SCODE_NOXCB:
2430                 vha->hw->exch_starvation++;
2431                 if (vha->hw->exch_starvation > 5) {
2432                         ql_log(ql_log_warn, vha, 0xd046,
2433                             "Exchange starvation. Resetting RISC\n");
2434
2435                         vha->hw->exch_starvation = 0;
2436
2437                         if (IS_P3P_TYPE(vha->hw))
2438                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2439                         else
2440                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2441                         qla2xxx_wake_dpc(vha);
2442                 }
2443                 fallthrough;
2444         default:
2445                 data[0] = MBS_COMMAND_ERROR;
2446                 break;
2447         }
2448
2449         if (logit)
2450                 ql_log(ql_log_warn, sp->vha, 0x5037, "Async-%s failed: "
2451                        "handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
2452                        type, sp->handle, fcport->d_id.b24, fcport->port_name,
2453                        le16_to_cpu(logio->comp_status),
2454                        le32_to_cpu(logio->io_parameter[0]),
2455                        le32_to_cpu(logio->io_parameter[1]));
2456         else
2457                 ql_dbg(ql_dbg_disc, sp->vha, 0x5037, "Async-%s failed: "
2458                        "handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
2459                        type, sp->handle, fcport->d_id.b24, fcport->port_name,
2460                        le16_to_cpu(logio->comp_status),
2461                        le32_to_cpu(logio->io_parameter[0]),
2462                        le32_to_cpu(logio->io_parameter[1]));
2463
2464 logio_done:
2465         sp->done(sp, 0);
2466 }
2467
2468 static void
2469 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
2470 {
2471         const char func[] = "TMF-IOCB";
2472         const char *type;
2473         fc_port_t *fcport;
2474         srb_t *sp;
2475         struct srb_iocb *iocb;
2476         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2477         u16 comp_status;
2478
2479         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
2480         if (!sp)
2481                 return;
2482
2483         comp_status = le16_to_cpu(sts->comp_status);
2484         iocb = &sp->u.iocb_cmd;
2485         type = sp->name;
2486         fcport = sp->fcport;
2487         iocb->u.tmf.data = QLA_SUCCESS;
2488
2489         if (sts->entry_status) {
2490                 ql_log(ql_log_warn, fcport->vha, 0x5038,
2491                     "Async-%s error - hdl=%x entry-status(%x).\n",
2492                     type, sp->handle, sts->entry_status);
2493                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2494         } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
2495                 ql_log(ql_log_warn, fcport->vha, 0x5039,
2496                     "Async-%s error - hdl=%x completion status(%x).\n",
2497                     type, sp->handle, comp_status);
2498                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2499         } else if ((le16_to_cpu(sts->scsi_status) &
2500             SS_RESPONSE_INFO_LEN_VALID)) {
2501                 host_to_fcp_swap(sts->data, sizeof(sts->data));
2502                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
2503                         ql_log(ql_log_warn, fcport->vha, 0x503b,
2504                             "Async-%s error - hdl=%x not enough response(%d).\n",
2505                             type, sp->handle, sts->rsp_data_len);
2506                 } else if (sts->data[3]) {
2507                         ql_log(ql_log_warn, fcport->vha, 0x503c,
2508                             "Async-%s error - hdl=%x response(%x).\n",
2509                             type, sp->handle, sts->data[3]);
2510                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2511                 }
2512         }
2513
2514         switch (comp_status) {
2515         case CS_PORT_LOGGED_OUT:
2516         case CS_PORT_CONFIG_CHG:
2517         case CS_PORT_BUSY:
2518         case CS_INCOMPLETE:
2519         case CS_PORT_UNAVAILABLE:
2520         case CS_TIMEOUT:
2521         case CS_RESET:
2522                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2523                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2524                                "-Port to be marked lost on fcport=%02x%02x%02x, current port state= %s comp_status %x.\n",
2525                                fcport->d_id.b.domain, fcport->d_id.b.area,
2526                                fcport->d_id.b.al_pa,
2527                                port_state_str[FCS_ONLINE],
2528                                comp_status);
2529
2530                         qlt_schedule_sess_for_deletion(fcport);
2531                 }
2532                 break;
2533
2534         default:
2535                 break;
2536         }
2537
2538         if (iocb->u.tmf.data != QLA_SUCCESS)
2539                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, sp->vha, 0x5055,
2540                     sts, sizeof(*sts));
2541
2542         sp->done(sp, 0);
2543 }
2544
2545 static void qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2546     void *tsk, srb_t *sp)
2547 {
2548         fc_port_t *fcport;
2549         struct srb_iocb *iocb;
2550         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2551         uint16_t        state_flags;
2552         struct nvmefc_fcp_req *fd;
2553         uint16_t        ret = QLA_SUCCESS;
2554         __le16          comp_status = sts->comp_status;
2555         int             logit = 0;
2556
2557         iocb = &sp->u.iocb_cmd;
2558         fcport = sp->fcport;
2559         iocb->u.nvme.comp_status = comp_status;
2560         state_flags  = le16_to_cpu(sts->state_flags);
2561         fd = iocb->u.nvme.desc;
2562
2563         if (unlikely(iocb->u.nvme.aen_op))
2564                 atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
2565         else
2566                 sp->qpair->cmd_completion_cnt++;
2567
2568         if (unlikely(comp_status != CS_COMPLETE))
2569                 logit = 1;
2570
2571         fd->transferred_length = fd->payload_length -
2572             le32_to_cpu(sts->residual_len);
2573
2574         /*
2575          * State flags: Bit 6 and 0.
2576          * If 0 is set, we don't care about 6.
2577          * both cases resp was dma'd to host buffer
2578          * if both are 0, that is good path case.
2579          * if six is set and 0 is clear, we need to
2580          * copy resp data from status iocb to resp buffer.
2581          */
2582         if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
2583                 iocb->u.nvme.rsp_pyld_len = 0;
2584         } else if ((state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP)) ==
2585                         (SF_FCP_RSP_DMA | SF_NVME_ERSP)) {
2586                 /* Response already DMA'd to fd->rspaddr. */
2587                 iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2588         } else if ((state_flags & SF_FCP_RSP_DMA)) {
2589                 /*
2590                  * Non-zero value in first 12 bytes of NVMe_RSP IU, treat this
2591                  * as an error.
2592                  */
2593                 iocb->u.nvme.rsp_pyld_len = 0;
2594                 fd->transferred_length = 0;
2595                 ql_dbg(ql_dbg_io, fcport->vha, 0x307a,
2596                         "Unexpected values in NVMe_RSP IU.\n");
2597                 logit = 1;
2598         } else if (state_flags & SF_NVME_ERSP) {
2599                 uint32_t *inbuf, *outbuf;
2600                 uint16_t iter;
2601
2602                 inbuf = (uint32_t *)&sts->nvme_ersp_data;
2603                 outbuf = (uint32_t *)fd->rspaddr;
2604                 iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2605                 if (unlikely(le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >
2606                     sizeof(struct nvme_fc_ersp_iu))) {
2607                         if (ql_mask_match(ql_dbg_io)) {
2608                                 WARN_ONCE(1, "Unexpected response payload length %u.\n",
2609                                     iocb->u.nvme.rsp_pyld_len);
2610                                 ql_log(ql_log_warn, fcport->vha, 0x5100,
2611                                     "Unexpected response payload length %u.\n",
2612                                     iocb->u.nvme.rsp_pyld_len);
2613                         }
2614                         iocb->u.nvme.rsp_pyld_len =
2615                                 cpu_to_le16(sizeof(struct nvme_fc_ersp_iu));
2616                 }
2617                 iter = le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >> 2;
2618                 for (; iter; iter--)
2619                         *outbuf++ = swab32(*inbuf++);
2620         }
2621
2622         if (state_flags & SF_NVME_ERSP) {
2623                 struct nvme_fc_ersp_iu *rsp_iu = fd->rspaddr;
2624                 u32 tgt_xfer_len;
2625
2626                 tgt_xfer_len = be32_to_cpu(rsp_iu->xfrd_len);
2627                 if (fd->transferred_length != tgt_xfer_len) {
2628                         ql_log(ql_log_warn, fcport->vha, 0x3079,
2629                                "Dropped frame(s) detected (sent/rcvd=%u/%u).\n",
2630                                tgt_xfer_len, fd->transferred_length);
2631                         logit = 1;
2632                 } else if (le16_to_cpu(comp_status) == CS_DATA_UNDERRUN) {
2633                         /*
2634                          * Do not log if this is just an underflow and there
2635                          * is no data loss.
2636                          */
2637                         logit = 0;
2638                 }
2639         }
2640
2641         if (unlikely(logit))
2642                 ql_log(ql_dbg_io, fcport->vha, 0x5060,
2643                    "NVME-%s ERR Handling - hdl=%x status(%x) tr_len:%x resid=%x  ox_id=%x\n",
2644                    sp->name, sp->handle, comp_status,
2645                    fd->transferred_length, le32_to_cpu(sts->residual_len),
2646                    sts->ox_id);
2647
2648         /*
2649          * If transport error then Failure (HBA rejects request)
2650          * otherwise transport will handle.
2651          */
2652         switch (le16_to_cpu(comp_status)) {
2653         case CS_COMPLETE:
2654                 break;
2655
2656         case CS_RESET:
2657         case CS_PORT_UNAVAILABLE:
2658         case CS_PORT_LOGGED_OUT:
2659                 fcport->nvme_flag |= NVME_FLAG_RESETTING;
2660                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2661                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2662                                "Port to be marked lost on fcport=%06x, current "
2663                                "port state= %s comp_status %x.\n",
2664                                fcport->d_id.b24, port_state_str[FCS_ONLINE],
2665                                comp_status);
2666
2667                         qlt_schedule_sess_for_deletion(fcport);
2668                 }
2669                 fallthrough;
2670         case CS_ABORTED:
2671         case CS_PORT_BUSY:
2672                 fd->transferred_length = 0;
2673                 iocb->u.nvme.rsp_pyld_len = 0;
2674                 ret = QLA_ABORTED;
2675                 break;
2676         case CS_DATA_UNDERRUN:
2677                 break;
2678         default:
2679                 ret = QLA_FUNCTION_FAILED;
2680                 break;
2681         }
2682         sp->done(sp, ret);
2683 }
2684
2685 static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
2686     struct vp_ctrl_entry_24xx *vce)
2687 {
2688         const char func[] = "CTRLVP-IOCB";
2689         srb_t *sp;
2690         int rval = QLA_SUCCESS;
2691
2692         sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
2693         if (!sp)
2694                 return;
2695
2696         if (vce->entry_status != 0) {
2697                 ql_dbg(ql_dbg_vport, vha, 0x10c4,
2698                     "%s: Failed to complete IOCB -- error status (%x)\n",
2699                     sp->name, vce->entry_status);
2700                 rval = QLA_FUNCTION_FAILED;
2701         } else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
2702                 ql_dbg(ql_dbg_vport, vha, 0x10c5,
2703                     "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
2704                     sp->name, le16_to_cpu(vce->comp_status),
2705                     le16_to_cpu(vce->vp_idx_failed));
2706                 rval = QLA_FUNCTION_FAILED;
2707         } else {
2708                 ql_dbg(ql_dbg_vport, vha, 0x10c6,
2709                     "Done %s.\n", __func__);
2710         }
2711
2712         sp->rc = rval;
2713         sp->done(sp, rval);
2714 }
2715
2716 /* Process a single response queue entry. */
2717 static void qla2x00_process_response_entry(struct scsi_qla_host *vha,
2718                                            struct rsp_que *rsp,
2719                                            sts_entry_t *pkt)
2720 {
2721         sts21_entry_t *sts21_entry;
2722         sts22_entry_t *sts22_entry;
2723         uint16_t handle_cnt;
2724         uint16_t cnt;
2725
2726         switch (pkt->entry_type) {
2727         case STATUS_TYPE:
2728                 qla2x00_status_entry(vha, rsp, pkt);
2729                 break;
2730         case STATUS_TYPE_21:
2731                 sts21_entry = (sts21_entry_t *)pkt;
2732                 handle_cnt = sts21_entry->handle_count;
2733                 for (cnt = 0; cnt < handle_cnt; cnt++)
2734                         qla2x00_process_completed_request(vha, rsp->req,
2735                                                 sts21_entry->handle[cnt]);
2736                 break;
2737         case STATUS_TYPE_22:
2738                 sts22_entry = (sts22_entry_t *)pkt;
2739                 handle_cnt = sts22_entry->handle_count;
2740                 for (cnt = 0; cnt < handle_cnt; cnt++)
2741                         qla2x00_process_completed_request(vha, rsp->req,
2742                                                 sts22_entry->handle[cnt]);
2743                 break;
2744         case STATUS_CONT_TYPE:
2745                 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2746                 break;
2747         case MBX_IOCB_TYPE:
2748                 qla2x00_mbx_iocb_entry(vha, rsp->req, (struct mbx_entry *)pkt);
2749                 break;
2750         case CT_IOCB_TYPE:
2751                 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2752                 break;
2753         default:
2754                 /* Type Not Supported. */
2755                 ql_log(ql_log_warn, vha, 0x504a,
2756                        "Received unknown response pkt type %x entry status=%x.\n",
2757                        pkt->entry_type, pkt->entry_status);
2758                 break;
2759         }
2760 }
2761
2762 /**
2763  * qla2x00_process_response_queue() - Process response queue entries.
2764  * @rsp: response queue
2765  */
2766 void
2767 qla2x00_process_response_queue(struct rsp_que *rsp)
2768 {
2769         struct scsi_qla_host *vha;
2770         struct qla_hw_data *ha = rsp->hw;
2771         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2772         sts_entry_t     *pkt;
2773
2774         vha = pci_get_drvdata(ha->pdev);
2775
2776         if (!vha->flags.online)
2777                 return;
2778
2779         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2780                 pkt = (sts_entry_t *)rsp->ring_ptr;
2781
2782                 rsp->ring_index++;
2783                 if (rsp->ring_index == rsp->length) {
2784                         rsp->ring_index = 0;
2785                         rsp->ring_ptr = rsp->ring;
2786                 } else {
2787                         rsp->ring_ptr++;
2788                 }
2789
2790                 if (pkt->entry_status != 0) {
2791                         qla2x00_error_entry(vha, rsp, pkt);
2792                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2793                         wmb();
2794                         continue;
2795                 }
2796
2797                 qla2x00_process_response_entry(vha, rsp, pkt);
2798                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2799                 wmb();
2800         }
2801
2802         /* Adjust ring index */
2803         wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
2804 }
2805
2806 static inline void
2807 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2808                      uint32_t sense_len, struct rsp_que *rsp, int res)
2809 {
2810         struct scsi_qla_host *vha = sp->vha;
2811         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2812         uint32_t track_sense_len;
2813
2814         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2815                 sense_len = SCSI_SENSE_BUFFERSIZE;
2816
2817         SET_CMD_SENSE_LEN(sp, sense_len);
2818         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2819         track_sense_len = sense_len;
2820
2821         if (sense_len > par_sense_len)
2822                 sense_len = par_sense_len;
2823
2824         memcpy(cp->sense_buffer, sense_data, sense_len);
2825
2826         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2827         track_sense_len -= sense_len;
2828         SET_CMD_SENSE_LEN(sp, track_sense_len);
2829
2830         if (track_sense_len != 0) {
2831                 rsp->status_srb = sp;
2832                 cp->result = res;
2833         }
2834
2835         if (sense_len) {
2836                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
2837                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2838                     sp->vha->host_no, cp->device->id, cp->device->lun,
2839                     cp);
2840                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
2841                     cp->sense_buffer, sense_len);
2842         }
2843 }
2844
2845 struct scsi_dif_tuple {
2846         __be16 guard;       /* Checksum */
2847         __be16 app_tag;         /* APPL identifier */
2848         __be32 ref_tag;         /* Target LBA or indirect LBA */
2849 };
2850
2851 /*
2852  * Checks the guard or meta-data for the type of error
2853  * detected by the HBA. In case of errors, we set the
2854  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
2855  * to indicate to the kernel that the HBA detected error.
2856  */
2857 static inline int
2858 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
2859 {
2860         struct scsi_qla_host *vha = sp->vha;
2861         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2862         uint8_t         *ap = &sts24->data[12];
2863         uint8_t         *ep = &sts24->data[20];
2864         uint32_t        e_ref_tag, a_ref_tag;
2865         uint16_t        e_app_tag, a_app_tag;
2866         uint16_t        e_guard, a_guard;
2867
2868         /*
2869          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
2870          * would make guard field appear at offset 2
2871          */
2872         a_guard   = get_unaligned_le16(ap + 2);
2873         a_app_tag = get_unaligned_le16(ap + 0);
2874         a_ref_tag = get_unaligned_le32(ap + 4);
2875         e_guard   = get_unaligned_le16(ep + 2);
2876         e_app_tag = get_unaligned_le16(ep + 0);
2877         e_ref_tag = get_unaligned_le32(ep + 4);
2878
2879         ql_dbg(ql_dbg_io, vha, 0x3023,
2880             "iocb(s) %p Returned STATUS.\n", sts24);
2881
2882         ql_dbg(ql_dbg_io, vha, 0x3024,
2883             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
2884             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
2885             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
2886             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
2887             a_app_tag, e_app_tag, a_guard, e_guard);
2888
2889         /*
2890          * Ignore sector if:
2891          * For type     3: ref & app tag is all 'f's
2892          * For type 0,1,2: app tag is all 'f's
2893          */
2894         if (a_app_tag == be16_to_cpu(T10_PI_APP_ESCAPE) &&
2895             (scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3 ||
2896              a_ref_tag == be32_to_cpu(T10_PI_REF_ESCAPE))) {
2897                 uint32_t blocks_done, resid;
2898                 sector_t lba_s = scsi_get_lba(cmd);
2899
2900                 /* 2TB boundary case covered automatically with this */
2901                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
2902
2903                 resid = scsi_bufflen(cmd) - (blocks_done *
2904                     cmd->device->sector_size);
2905
2906                 scsi_set_resid(cmd, resid);
2907                 cmd->result = DID_OK << 16;
2908
2909                 /* Update protection tag */
2910                 if (scsi_prot_sg_count(cmd)) {
2911                         uint32_t i, j = 0, k = 0, num_ent;
2912                         struct scatterlist *sg;
2913                         struct t10_pi_tuple *spt;
2914
2915                         /* Patch the corresponding protection tags */
2916                         scsi_for_each_prot_sg(cmd, sg,
2917                             scsi_prot_sg_count(cmd), i) {
2918                                 num_ent = sg_dma_len(sg) / 8;
2919                                 if (k + num_ent < blocks_done) {
2920                                         k += num_ent;
2921                                         continue;
2922                                 }
2923                                 j = blocks_done - k - 1;
2924                                 k = blocks_done;
2925                                 break;
2926                         }
2927
2928                         if (k != blocks_done) {
2929                                 ql_log(ql_log_warn, vha, 0x302f,
2930                                     "unexpected tag values tag:lba=%x:%llx)\n",
2931                                     e_ref_tag, (unsigned long long)lba_s);
2932                                 return 1;
2933                         }
2934
2935                         spt = page_address(sg_page(sg)) + sg->offset;
2936                         spt += j;
2937
2938                         spt->app_tag = T10_PI_APP_ESCAPE;
2939                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
2940                                 spt->ref_tag = T10_PI_REF_ESCAPE;
2941                 }
2942
2943                 return 0;
2944         }
2945
2946         /* check guard */
2947         if (e_guard != a_guard) {
2948                 scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1);
2949                 set_host_byte(cmd, DID_ABORT);
2950                 return 1;
2951         }
2952
2953         /* check ref tag */
2954         if (e_ref_tag != a_ref_tag) {
2955                 scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3);
2956                 set_host_byte(cmd, DID_ABORT);
2957                 return 1;
2958         }
2959
2960         /* check appl tag */
2961         if (e_app_tag != a_app_tag) {
2962                 scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2);
2963                 set_host_byte(cmd, DID_ABORT);
2964                 return 1;
2965         }
2966
2967         return 1;
2968 }
2969
2970 static void
2971 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2972                                   struct req_que *req, uint32_t index)
2973 {
2974         struct qla_hw_data *ha = vha->hw;
2975         srb_t *sp;
2976         uint16_t        comp_status;
2977         uint16_t        scsi_status;
2978         uint16_t thread_id;
2979         uint32_t rval = EXT_STATUS_OK;
2980         struct bsg_job *bsg_job = NULL;
2981         struct fc_bsg_request *bsg_request;
2982         struct fc_bsg_reply *bsg_reply;
2983         sts_entry_t *sts = pkt;
2984         struct sts_entry_24xx *sts24 = pkt;
2985
2986         /* Validate handle. */
2987         if (index >= req->num_outstanding_cmds) {
2988                 ql_log(ql_log_warn, vha, 0x70af,
2989                     "Invalid SCSI completion handle 0x%x.\n", index);
2990                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2991                 return;
2992         }
2993
2994         sp = req->outstanding_cmds[index];
2995         if (!sp) {
2996                 ql_log(ql_log_warn, vha, 0x70b0,
2997                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
2998                     req->id, index);
2999
3000                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3001                 return;
3002         }
3003
3004         /* Free outstanding command slot. */
3005         req->outstanding_cmds[index] = NULL;
3006         bsg_job = sp->u.bsg_job;
3007         bsg_request = bsg_job->request;
3008         bsg_reply = bsg_job->reply;
3009
3010         if (IS_FWI2_CAPABLE(ha)) {
3011                 comp_status = le16_to_cpu(sts24->comp_status);
3012                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
3013         } else {
3014                 comp_status = le16_to_cpu(sts->comp_status);
3015                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
3016         }
3017
3018         thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
3019         switch (comp_status) {
3020         case CS_COMPLETE:
3021                 if (scsi_status == 0) {
3022                         bsg_reply->reply_payload_rcv_len =
3023                                         bsg_job->reply_payload.payload_len;
3024                         vha->qla_stats.input_bytes +=
3025                                 bsg_reply->reply_payload_rcv_len;
3026                         vha->qla_stats.input_requests++;
3027                         rval = EXT_STATUS_OK;
3028                 }
3029                 goto done;
3030
3031         case CS_DATA_OVERRUN:
3032                 ql_dbg(ql_dbg_user, vha, 0x70b1,
3033                     "Command completed with data overrun thread_id=%d\n",
3034                     thread_id);
3035                 rval = EXT_STATUS_DATA_OVERRUN;
3036                 break;
3037
3038         case CS_DATA_UNDERRUN:
3039                 ql_dbg(ql_dbg_user, vha, 0x70b2,
3040                     "Command completed with data underrun thread_id=%d\n",
3041                     thread_id);
3042                 rval = EXT_STATUS_DATA_UNDERRUN;
3043                 break;
3044         case CS_BIDIR_RD_OVERRUN:
3045                 ql_dbg(ql_dbg_user, vha, 0x70b3,
3046                     "Command completed with read data overrun thread_id=%d\n",
3047                     thread_id);
3048                 rval = EXT_STATUS_DATA_OVERRUN;
3049                 break;
3050
3051         case CS_BIDIR_RD_WR_OVERRUN:
3052                 ql_dbg(ql_dbg_user, vha, 0x70b4,
3053                     "Command completed with read and write data overrun "
3054                     "thread_id=%d\n", thread_id);
3055                 rval = EXT_STATUS_DATA_OVERRUN;
3056                 break;
3057
3058         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
3059                 ql_dbg(ql_dbg_user, vha, 0x70b5,
3060                     "Command completed with read data over and write data "
3061                     "underrun thread_id=%d\n", thread_id);
3062                 rval = EXT_STATUS_DATA_OVERRUN;
3063                 break;
3064
3065         case CS_BIDIR_RD_UNDERRUN:
3066                 ql_dbg(ql_dbg_user, vha, 0x70b6,
3067                     "Command completed with read data underrun "
3068                     "thread_id=%d\n", thread_id);
3069                 rval = EXT_STATUS_DATA_UNDERRUN;
3070                 break;
3071
3072         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
3073                 ql_dbg(ql_dbg_user, vha, 0x70b7,
3074                     "Command completed with read data under and write data "
3075                     "overrun thread_id=%d\n", thread_id);
3076                 rval = EXT_STATUS_DATA_UNDERRUN;
3077                 break;
3078
3079         case CS_BIDIR_RD_WR_UNDERRUN:
3080                 ql_dbg(ql_dbg_user, vha, 0x70b8,
3081                     "Command completed with read and write data underrun "
3082                     "thread_id=%d\n", thread_id);
3083                 rval = EXT_STATUS_DATA_UNDERRUN;
3084                 break;
3085
3086         case CS_BIDIR_DMA:
3087                 ql_dbg(ql_dbg_user, vha, 0x70b9,
3088                     "Command completed with data DMA error thread_id=%d\n",
3089                     thread_id);
3090                 rval = EXT_STATUS_DMA_ERR;
3091                 break;
3092
3093         case CS_TIMEOUT:
3094                 ql_dbg(ql_dbg_user, vha, 0x70ba,
3095                     "Command completed with timeout thread_id=%d\n",
3096                     thread_id);
3097                 rval = EXT_STATUS_TIMEOUT;
3098                 break;
3099         default:
3100                 ql_dbg(ql_dbg_user, vha, 0x70bb,
3101                     "Command completed with completion status=0x%x "
3102                     "thread_id=%d\n", comp_status, thread_id);
3103                 rval = EXT_STATUS_ERR;
3104                 break;
3105         }
3106         bsg_reply->reply_payload_rcv_len = 0;
3107
3108 done:
3109         /* Return the vendor specific reply to API */
3110         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
3111         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
3112         /* Always return DID_OK, bsg will send the vendor specific response
3113          * in this case only */
3114         sp->done(sp, DID_OK << 16);
3115
3116 }
3117
3118 /**
3119  * qla2x00_status_entry() - Process a Status IOCB entry.
3120  * @vha: SCSI driver HA context
3121  * @rsp: response queue
3122  * @pkt: Entry pointer
3123  */
3124 static void
3125 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
3126 {
3127         srb_t           *sp;
3128         fc_port_t       *fcport;
3129         struct scsi_cmnd *cp;
3130         sts_entry_t *sts = pkt;
3131         struct sts_entry_24xx *sts24 = pkt;
3132         uint16_t        comp_status;
3133         uint16_t        scsi_status;
3134         uint16_t        ox_id;
3135         uint8_t         lscsi_status;
3136         int32_t         resid;
3137         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
3138             fw_resid_len;
3139         uint8_t         *rsp_info, *sense_data;
3140         struct qla_hw_data *ha = vha->hw;
3141         uint32_t handle;
3142         uint16_t que;
3143         struct req_que *req;
3144         int logit = 1;
3145         int res = 0;
3146         uint16_t state_flags = 0;
3147         uint16_t sts_qual = 0;
3148
3149         if (IS_FWI2_CAPABLE(ha)) {
3150                 comp_status = le16_to_cpu(sts24->comp_status);
3151                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
3152                 state_flags = le16_to_cpu(sts24->state_flags);
3153         } else {
3154                 comp_status = le16_to_cpu(sts->comp_status);
3155                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
3156         }
3157         handle = (uint32_t) LSW(sts->handle);
3158         que = MSW(sts->handle);
3159         req = ha->req_q_map[que];
3160
3161         /* Check for invalid queue pointer */
3162         if (req == NULL ||
3163             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
3164                 ql_dbg(ql_dbg_io, vha, 0x3059,
3165                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
3166                     "que=%u.\n", sts->handle, req, que);
3167                 return;
3168         }
3169
3170         /* Validate handle. */
3171         if (handle < req->num_outstanding_cmds) {
3172                 sp = req->outstanding_cmds[handle];
3173                 if (!sp) {
3174                         ql_dbg(ql_dbg_io, vha, 0x3075,
3175                             "%s(%ld): Already returned command for status handle (0x%x).\n",
3176                             __func__, vha->host_no, sts->handle);
3177                         return;
3178                 }
3179         } else {
3180                 ql_dbg(ql_dbg_io, vha, 0x3017,
3181                     "Invalid status handle, out of range (0x%x).\n",
3182                     sts->handle);
3183
3184                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3185                         if (IS_P3P_TYPE(ha))
3186                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
3187                         else
3188                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3189                         qla2xxx_wake_dpc(vha);
3190                 }
3191                 return;
3192         }
3193         qla_put_iocbs(sp->qpair, &sp->iores);
3194
3195         if (sp->cmd_type != TYPE_SRB) {
3196                 req->outstanding_cmds[handle] = NULL;
3197                 ql_dbg(ql_dbg_io, vha, 0x3015,
3198                     "Unknown sp->cmd_type %x %p).\n",
3199                     sp->cmd_type, sp);
3200                 return;
3201         }
3202
3203         /* NVME completion. */
3204         if (sp->type == SRB_NVME_CMD) {
3205                 req->outstanding_cmds[handle] = NULL;
3206                 qla24xx_nvme_iocb_entry(vha, req, pkt, sp);
3207                 return;
3208         }
3209
3210         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
3211                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
3212                 return;
3213         }
3214
3215         /* Task Management completion. */
3216         if (sp->type == SRB_TM_CMD) {
3217                 qla24xx_tm_iocb_entry(vha, req, pkt);
3218                 return;
3219         }
3220
3221         /* Fast path completion. */
3222         qla_chk_edif_rx_sa_delete_pending(vha, sp, sts24);
3223         sp->qpair->cmd_completion_cnt++;
3224
3225         if (comp_status == CS_COMPLETE && scsi_status == 0) {
3226                 qla2x00_process_completed_request(vha, req, handle);
3227
3228                 return;
3229         }
3230
3231         req->outstanding_cmds[handle] = NULL;
3232         cp = GET_CMD_SP(sp);
3233         if (cp == NULL) {
3234                 ql_dbg(ql_dbg_io, vha, 0x3018,
3235                     "Command already returned (0x%x/%p).\n",
3236                     sts->handle, sp);
3237
3238                 return;
3239         }
3240
3241         lscsi_status = scsi_status & STATUS_MASK;
3242
3243         fcport = sp->fcport;
3244
3245         ox_id = 0;
3246         sense_len = par_sense_len = rsp_info_len = resid_len =
3247             fw_resid_len = 0;
3248         if (IS_FWI2_CAPABLE(ha)) {
3249                 if (scsi_status & SS_SENSE_LEN_VALID)
3250                         sense_len = le32_to_cpu(sts24->sense_len);
3251                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
3252                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
3253                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
3254                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
3255                 if (comp_status == CS_DATA_UNDERRUN)
3256                         fw_resid_len = le32_to_cpu(sts24->residual_len);
3257                 rsp_info = sts24->data;
3258                 sense_data = sts24->data;
3259                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
3260                 ox_id = le16_to_cpu(sts24->ox_id);
3261                 par_sense_len = sizeof(sts24->data);
3262                 sts_qual = le16_to_cpu(sts24->status_qualifier);
3263         } else {
3264                 if (scsi_status & SS_SENSE_LEN_VALID)
3265                         sense_len = le16_to_cpu(sts->req_sense_length);
3266                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
3267                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
3268                 resid_len = le32_to_cpu(sts->residual_length);
3269                 rsp_info = sts->rsp_info;
3270                 sense_data = sts->req_sense_data;
3271                 par_sense_len = sizeof(sts->req_sense_data);
3272         }
3273
3274         /* Check for any FCP transport errors. */
3275         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
3276                 /* Sense data lies beyond any FCP RESPONSE data. */
3277                 if (IS_FWI2_CAPABLE(ha)) {
3278                         sense_data += rsp_info_len;
3279                         par_sense_len -= rsp_info_len;
3280                 }
3281                 if (rsp_info_len > 3 && rsp_info[3]) {
3282                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
3283                             "FCP I/O protocol failure (0x%x/0x%x).\n",
3284                             rsp_info_len, rsp_info[3]);
3285
3286                         res = DID_BUS_BUSY << 16;
3287                         goto out;
3288                 }
3289         }
3290
3291         /* Check for overrun. */
3292         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
3293             scsi_status & SS_RESIDUAL_OVER)
3294                 comp_status = CS_DATA_OVERRUN;
3295
3296         /*
3297          * Check retry_delay_timer value if we receive a busy or
3298          * queue full.
3299          */
3300         if (unlikely(lscsi_status == SAM_STAT_TASK_SET_FULL ||
3301                      lscsi_status == SAM_STAT_BUSY))
3302                 qla2x00_set_retry_delay_timestamp(fcport, sts_qual);
3303
3304         /*
3305          * Based on Host and scsi status generate status code for Linux
3306          */
3307         switch (comp_status) {
3308         case CS_COMPLETE:
3309         case CS_QUEUE_FULL:
3310                 if (scsi_status == 0) {
3311                         res = DID_OK << 16;
3312                         break;
3313                 }
3314                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
3315                         resid = resid_len;
3316                         scsi_set_resid(cp, resid);
3317
3318                         if (!lscsi_status &&
3319                             ((unsigned)(scsi_bufflen(cp) - resid) <
3320                              cp->underflow)) {
3321                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
3322                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3323                                     resid, scsi_bufflen(cp));
3324
3325                                 res = DID_ERROR << 16;
3326                                 break;
3327                         }
3328                 }
3329                 res = DID_OK << 16 | lscsi_status;
3330
3331                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3332                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
3333                             "QUEUE FULL detected.\n");
3334                         break;
3335                 }
3336                 logit = 0;
3337                 if (lscsi_status != SS_CHECK_CONDITION)
3338                         break;
3339
3340                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3341                 if (!(scsi_status & SS_SENSE_LEN_VALID))
3342                         break;
3343
3344                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
3345                     rsp, res);
3346                 break;
3347
3348         case CS_DATA_UNDERRUN:
3349                 /* Use F/W calculated residual length. */
3350                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
3351                 scsi_set_resid(cp, resid);
3352                 if (scsi_status & SS_RESIDUAL_UNDER) {
3353                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
3354                                 ql_log(ql_log_warn, fcport->vha, 0x301d,
3355                                        "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3356                                        resid, scsi_bufflen(cp));
3357
3358                                 vha->interface_err_cnt++;
3359
3360                                 res = DID_ERROR << 16 | lscsi_status;
3361                                 goto check_scsi_status;
3362                         }
3363
3364                         if (!lscsi_status &&
3365                             ((unsigned)(scsi_bufflen(cp) - resid) <
3366                             cp->underflow)) {
3367                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
3368                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3369                                     resid, scsi_bufflen(cp));
3370
3371                                 res = DID_ERROR << 16;
3372                                 break;
3373                         }
3374                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
3375                             lscsi_status != SAM_STAT_BUSY) {
3376                         /*
3377                          * scsi status of task set and busy are considered to be
3378                          * task not completed.
3379                          */
3380
3381                         ql_log(ql_log_warn, fcport->vha, 0x301f,
3382                                "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3383                                resid, scsi_bufflen(cp));
3384
3385                         vha->interface_err_cnt++;
3386
3387                         res = DID_ERROR << 16 | lscsi_status;
3388                         goto check_scsi_status;
3389                 } else {
3390                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
3391                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
3392                             scsi_status, lscsi_status);
3393                 }
3394
3395                 res = DID_OK << 16 | lscsi_status;
3396                 logit = 0;
3397
3398 check_scsi_status:
3399                 /*
3400                  * Check to see if SCSI Status is non zero. If so report SCSI
3401                  * Status.
3402                  */
3403                 if (lscsi_status != 0) {
3404                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3405                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
3406                                     "QUEUE FULL detected.\n");
3407                                 logit = 1;
3408                                 break;
3409                         }
3410                         if (lscsi_status != SS_CHECK_CONDITION)
3411                                 break;
3412
3413                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3414                         if (!(scsi_status & SS_SENSE_LEN_VALID))
3415                                 break;
3416
3417                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
3418                             sense_len, rsp, res);
3419                 }
3420                 break;
3421
3422         case CS_PORT_LOGGED_OUT:
3423         case CS_PORT_CONFIG_CHG:
3424         case CS_PORT_BUSY:
3425         case CS_INCOMPLETE:
3426         case CS_PORT_UNAVAILABLE:
3427         case CS_TIMEOUT:
3428         case CS_RESET:
3429
3430                 /*
3431                  * We are going to have the fc class block the rport
3432                  * while we try to recover so instruct the mid layer
3433                  * to requeue until the class decides how to handle this.
3434                  */
3435                 res = DID_TRANSPORT_DISRUPTED << 16;
3436
3437                 if (comp_status == CS_TIMEOUT) {
3438                         if (IS_FWI2_CAPABLE(ha))
3439                                 break;
3440                         else if ((le16_to_cpu(sts->status_flags) &
3441                             SF_LOGOUT_SENT) == 0)
3442                                 break;
3443                 }
3444
3445                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
3446                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
3447                                 "Port to be marked lost on fcport=%02x%02x%02x, current "
3448                                 "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
3449                                 fcport->d_id.b.area, fcport->d_id.b.al_pa,
3450                                 port_state_str[FCS_ONLINE],
3451                                 comp_status);
3452
3453                         qlt_schedule_sess_for_deletion(fcport);
3454                 }
3455
3456                 break;
3457
3458         case CS_ABORTED:
3459                 res = DID_RESET << 16;
3460                 break;
3461
3462         case CS_DIF_ERROR:
3463                 logit = qla2x00_handle_dif_error(sp, sts24);
3464                 res = cp->result;
3465                 break;
3466
3467         case CS_TRANSPORT:
3468                 res = DID_ERROR << 16;
3469                 vha->hw_err_cnt++;
3470
3471                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
3472                         break;
3473
3474                 if (state_flags & BIT_4)
3475                         scmd_printk(KERN_WARNING, cp,
3476                             "Unsupported device '%s' found.\n",
3477                             cp->device->vendor);
3478                 break;
3479
3480         case CS_DMA:
3481                 ql_log(ql_log_info, fcport->vha, 0x3022,
3482                     "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",
3483                     comp_status, scsi_status, res, vha->host_no,
3484                     cp->device->id, cp->device->lun, fcport->d_id.b24,
3485                     ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3486                     resid_len, fw_resid_len, sp, cp);
3487                 ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
3488                     pkt, sizeof(*sts24));
3489                 res = DID_ERROR << 16;
3490                 vha->hw_err_cnt++;
3491                 break;
3492         default:
3493                 res = DID_ERROR << 16;
3494                 break;
3495         }
3496
3497 out:
3498         if (logit)
3499                 ql_log(ql_dbg_io, fcport->vha, 0x3022,
3500                        "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3501                        comp_status, scsi_status, res, vha->host_no,
3502                        cp->device->id, cp->device->lun, fcport->d_id.b.domain,
3503                        fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
3504                        cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3505                        resid_len, fw_resid_len, sp, cp);
3506
3507         if (rsp->status_srb == NULL)
3508                 sp->done(sp, res);
3509 }
3510
3511 /**
3512  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
3513  * @rsp: response queue
3514  * @pkt: Entry pointer
3515  *
3516  * Extended sense data.
3517  */
3518 static void
3519 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
3520 {
3521         uint8_t sense_sz = 0;
3522         struct qla_hw_data *ha = rsp->hw;
3523         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
3524         srb_t *sp = rsp->status_srb;
3525         struct scsi_cmnd *cp;
3526         uint32_t sense_len;
3527         uint8_t *sense_ptr;
3528
3529         if (!sp || !GET_CMD_SENSE_LEN(sp))
3530                 return;
3531
3532         sense_len = GET_CMD_SENSE_LEN(sp);
3533         sense_ptr = GET_CMD_SENSE_PTR(sp);
3534
3535         cp = GET_CMD_SP(sp);
3536         if (cp == NULL) {
3537                 ql_log(ql_log_warn, vha, 0x3025,
3538                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
3539
3540                 rsp->status_srb = NULL;
3541                 return;
3542         }
3543
3544         if (sense_len > sizeof(pkt->data))
3545                 sense_sz = sizeof(pkt->data);
3546         else
3547                 sense_sz = sense_len;
3548
3549         /* Move sense data. */
3550         if (IS_FWI2_CAPABLE(ha))
3551                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
3552         memcpy(sense_ptr, pkt->data, sense_sz);
3553         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
3554                 sense_ptr, sense_sz);
3555
3556         sense_len -= sense_sz;
3557         sense_ptr += sense_sz;
3558
3559         SET_CMD_SENSE_PTR(sp, sense_ptr);
3560         SET_CMD_SENSE_LEN(sp, sense_len);
3561
3562         /* Place command on done queue. */
3563         if (sense_len == 0) {
3564                 rsp->status_srb = NULL;
3565                 sp->done(sp, cp->result);
3566         }
3567 }
3568
3569 /**
3570  * qla2x00_error_entry() - Process an error entry.
3571  * @vha: SCSI driver HA context
3572  * @rsp: response queue
3573  * @pkt: Entry pointer
3574  * return : 1=allow further error analysis. 0=no additional error analysis.
3575  */
3576 static int
3577 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
3578 {
3579         srb_t *sp;
3580         struct qla_hw_data *ha = vha->hw;
3581         const char func[] = "ERROR-IOCB";
3582         uint16_t que = MSW(pkt->handle);
3583         struct req_que *req = NULL;
3584         int res = DID_ERROR << 16;
3585
3586         ql_dbg(ql_dbg_async, vha, 0x502a,
3587             "iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
3588             pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
3589
3590         if (que >= ha->max_req_queues || !ha->req_q_map[que])
3591                 goto fatal;
3592
3593         req = ha->req_q_map[que];
3594
3595         if (pkt->entry_status & RF_BUSY)
3596                 res = DID_BUS_BUSY << 16;
3597
3598         if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
3599                 return 0;
3600
3601         switch (pkt->entry_type) {
3602         case NOTIFY_ACK_TYPE:
3603         case STATUS_TYPE:
3604         case STATUS_CONT_TYPE:
3605         case LOGINOUT_PORT_IOCB_TYPE:
3606         case CT_IOCB_TYPE:
3607         case ELS_IOCB_TYPE:
3608         case ABORT_IOCB_TYPE:
3609         case MBX_IOCB_TYPE:
3610         default:
3611                 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3612                 if (sp) {
3613                         qla_put_iocbs(sp->qpair, &sp->iores);
3614                         sp->done(sp, res);
3615                         return 0;
3616                 }
3617                 break;
3618
3619         case SA_UPDATE_IOCB_TYPE:
3620         case ABTS_RESP_24XX:
3621         case CTIO_TYPE7:
3622         case CTIO_CRC2:
3623                 return 1;
3624         }
3625 fatal:
3626         ql_log(ql_log_warn, vha, 0x5030,
3627             "Error entry - invalid handle/queue (%04x).\n", que);
3628         return 0;
3629 }
3630
3631 /**
3632  * qla24xx_mbx_completion() - Process mailbox command completions.
3633  * @vha: SCSI driver HA context
3634  * @mb0: Mailbox0 register
3635  */
3636 static void
3637 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
3638 {
3639         uint16_t        cnt;
3640         uint32_t        mboxes;
3641         __le16 __iomem *wptr;
3642         struct qla_hw_data *ha = vha->hw;
3643         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3644
3645         /* Read all mbox registers? */
3646         WARN_ON_ONCE(ha->mbx_count > 32);
3647         mboxes = (1ULL << ha->mbx_count) - 1;
3648         if (!ha->mcp)
3649                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
3650         else
3651                 mboxes = ha->mcp->in_mb;
3652
3653         /* Load return mailbox registers. */
3654         ha->flags.mbox_int = 1;
3655         ha->mailbox_out[0] = mb0;
3656         mboxes >>= 1;
3657         wptr = &reg->mailbox1;
3658
3659         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
3660                 if (mboxes & BIT_0)
3661                         ha->mailbox_out[cnt] = rd_reg_word(wptr);
3662
3663                 mboxes >>= 1;
3664                 wptr++;
3665         }
3666 }
3667
3668 static void
3669 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
3670         struct abort_entry_24xx *pkt)
3671 {
3672         const char func[] = "ABT_IOCB";
3673         srb_t *sp;
3674         srb_t *orig_sp = NULL;
3675         struct srb_iocb *abt;
3676
3677         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3678         if (!sp)
3679                 return;
3680
3681         abt = &sp->u.iocb_cmd;
3682         abt->u.abt.comp_status = pkt->comp_status;
3683         orig_sp = sp->cmd_sp;
3684         /* Need to pass original sp */
3685         if (orig_sp)
3686                 qla_nvme_abort_process_comp_status(pkt, orig_sp);
3687
3688         sp->done(sp, 0);
3689 }
3690
3691 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
3692     struct pt_ls4_request *pkt, struct req_que *req)
3693 {
3694         srb_t *sp;
3695         const char func[] = "LS4_IOCB";
3696         uint16_t comp_status;
3697
3698         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3699         if (!sp)
3700                 return;
3701
3702         comp_status = le16_to_cpu(pkt->status);
3703         sp->done(sp, comp_status);
3704 }
3705
3706 /**
3707  * qla_chk_cont_iocb_avail - check for all continuation iocbs are available
3708  *   before iocb processing can start.
3709  * @vha: host adapter pointer
3710  * @rsp: respond queue
3711  * @pkt: head iocb describing how many continuation iocb
3712  * Return: 0 all iocbs has arrived, xx- all iocbs have not arrived.
3713  */
3714 static int qla_chk_cont_iocb_avail(struct scsi_qla_host *vha,
3715         struct rsp_que *rsp, response_t *pkt)
3716 {
3717         int start_pkt_ring_index, end_pkt_ring_index, n_ring_index;
3718         response_t *end_pkt;
3719         int rc = 0;
3720         u32 rsp_q_in;
3721
3722         if (pkt->entry_count == 1)
3723                 return rc;
3724
3725         /* ring_index was pre-increment. set it back to current pkt */
3726         if (rsp->ring_index == 0)
3727                 start_pkt_ring_index = rsp->length - 1;
3728         else
3729                 start_pkt_ring_index = rsp->ring_index - 1;
3730
3731         if ((start_pkt_ring_index + pkt->entry_count) >= rsp->length)
3732                 end_pkt_ring_index = start_pkt_ring_index + pkt->entry_count -
3733                         rsp->length - 1;
3734         else
3735                 end_pkt_ring_index = start_pkt_ring_index + pkt->entry_count - 1;
3736
3737         end_pkt = rsp->ring + end_pkt_ring_index;
3738
3739         /*  next pkt = end_pkt + 1 */
3740         n_ring_index = end_pkt_ring_index + 1;
3741         if (n_ring_index >= rsp->length)
3742                 n_ring_index = 0;
3743
3744         rsp_q_in = rsp->qpair->use_shadow_reg ? *rsp->in_ptr :
3745                 rd_reg_dword(rsp->rsp_q_in);
3746
3747         /* rsp_q_in is either wrapped or pointing beyond endpkt */
3748         if ((rsp_q_in < start_pkt_ring_index && rsp_q_in < n_ring_index) ||
3749                         rsp_q_in >= n_ring_index)
3750                 /* all IOCBs arrived. */
3751                 rc = 0;
3752         else
3753                 rc = -EIO;
3754
3755         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x5091,
3756             "%s - ring %p pkt %p end pkt %p entry count %#x rsp_q_in %d rc %d\n",
3757             __func__, rsp->ring, pkt, end_pkt, pkt->entry_count,
3758             rsp_q_in, rc);
3759
3760         return rc;
3761 }
3762
3763 /**
3764  * qla24xx_process_response_queue() - Process response queue entries.
3765  * @vha: SCSI driver HA context
3766  * @rsp: response queue
3767  */
3768 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
3769         struct rsp_que *rsp)
3770 {
3771         struct sts_entry_24xx *pkt;
3772         struct qla_hw_data *ha = vha->hw;
3773         struct purex_entry_24xx *purex_entry;
3774         struct purex_item *pure_item;
3775
3776         if (!ha->flags.fw_started)
3777                 return;
3778
3779         if (rsp->qpair->cpuid != smp_processor_id() || !rsp->qpair->rcv_intr) {
3780                 rsp->qpair->rcv_intr = 1;
3781                 qla_cpu_update(rsp->qpair, smp_processor_id());
3782         }
3783
3784         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
3785                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
3786
3787                 rsp->ring_index++;
3788                 if (rsp->ring_index == rsp->length) {
3789                         rsp->ring_index = 0;
3790                         rsp->ring_ptr = rsp->ring;
3791                 } else {
3792                         rsp->ring_ptr++;
3793                 }
3794
3795                 if (pkt->entry_status != 0) {
3796                         if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
3797                                 goto process_err;
3798
3799                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3800                         wmb();
3801                         continue;
3802                 }
3803 process_err:
3804
3805                 switch (pkt->entry_type) {
3806                 case STATUS_TYPE:
3807                         qla2x00_status_entry(vha, rsp, pkt);
3808                         break;
3809                 case STATUS_CONT_TYPE:
3810                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
3811                         break;
3812                 case VP_RPT_ID_IOCB_TYPE:
3813                         qla24xx_report_id_acquisition(vha,
3814                             (struct vp_rpt_id_entry_24xx *)pkt);
3815                         break;
3816                 case LOGINOUT_PORT_IOCB_TYPE:
3817                         qla24xx_logio_entry(vha, rsp->req,
3818                             (struct logio_entry_24xx *)pkt);
3819                         break;
3820                 case CT_IOCB_TYPE:
3821                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
3822                         break;
3823                 case ELS_IOCB_TYPE:
3824                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
3825                         break;
3826                 case ABTS_RECV_24XX:
3827                         if (qla_ini_mode_enabled(vha)) {
3828                                 pure_item = qla24xx_copy_std_pkt(vha, pkt);
3829                                 if (!pure_item)
3830                                         break;
3831                                 qla24xx_queue_purex_item(vha, pure_item,
3832                                                          qla24xx_process_abts);
3833                                 break;
3834                         }
3835                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3836                             IS_QLA28XX(ha)) {
3837                                 /* ensure that the ATIO queue is empty */
3838                                 qlt_handle_abts_recv(vha, rsp,
3839                                     (response_t *)pkt);
3840                                 break;
3841                         } else {
3842                                 qlt_24xx_process_atio_queue(vha, 1);
3843                         }
3844                         fallthrough;
3845                 case ABTS_RESP_24XX:
3846                 case CTIO_TYPE7:
3847                 case CTIO_CRC2:
3848                         qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
3849                         break;
3850                 case PT_LS4_REQUEST:
3851                         qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
3852                             rsp->req);
3853                         break;
3854                 case NOTIFY_ACK_TYPE:
3855                         if (pkt->handle == QLA_TGT_SKIP_HANDLE)
3856                                 qlt_response_pkt_all_vps(vha, rsp,
3857                                     (response_t *)pkt);
3858                         else
3859                                 qla24xxx_nack_iocb_entry(vha, rsp->req,
3860                                         (struct nack_to_isp *)pkt);
3861                         break;
3862                 case MARKER_TYPE:
3863                         /* Do nothing in this case, this check is to prevent it
3864                          * from falling into default case
3865                          */
3866                         break;
3867                 case ABORT_IOCB_TYPE:
3868                         qla24xx_abort_iocb_entry(vha, rsp->req,
3869                             (struct abort_entry_24xx *)pkt);
3870                         break;
3871                 case MBX_IOCB_TYPE:
3872                         qla24xx_mbx_iocb_entry(vha, rsp->req,
3873                             (struct mbx_24xx_entry *)pkt);
3874                         break;
3875                 case VP_CTRL_IOCB_TYPE:
3876                         qla_ctrlvp_completed(vha, rsp->req,
3877                             (struct vp_ctrl_entry_24xx *)pkt);
3878                         break;
3879                 case PUREX_IOCB_TYPE:
3880                         purex_entry = (void *)pkt;
3881                         switch (purex_entry->els_frame_payload[3]) {
3882                         case ELS_RDP:
3883                                 pure_item = qla24xx_copy_std_pkt(vha, pkt);
3884                                 if (!pure_item)
3885                                         break;
3886                                 qla24xx_queue_purex_item(vha, pure_item,
3887                                                  qla24xx_process_purex_rdp);
3888                                 break;
3889                         case ELS_FPIN:
3890                                 if (!vha->hw->flags.scm_enabled) {
3891                                         ql_log(ql_log_warn, vha, 0x5094,
3892                                                "SCM not active for this port\n");
3893                                         break;
3894                                 }
3895                                 pure_item = qla27xx_copy_fpin_pkt(vha,
3896                                                           (void **)&pkt, &rsp);
3897                                 if (!pure_item)
3898                                         break;
3899                                 qla24xx_queue_purex_item(vha, pure_item,
3900                                                  qla27xx_process_purex_fpin);
3901                                 break;
3902
3903                         case ELS_AUTH_ELS:
3904                                 if (qla_chk_cont_iocb_avail(vha, rsp, (response_t *)pkt)) {
3905                                         ql_dbg(ql_dbg_init, vha, 0x5091,
3906                                             "Defer processing ELS opcode %#x...\n",
3907                                             purex_entry->els_frame_payload[3]);
3908                                         return;
3909                                 }
3910                                 qla24xx_auth_els(vha, (void **)&pkt, &rsp);
3911                                 break;
3912                         default:
3913                                 ql_log(ql_log_warn, vha, 0x509c,
3914                                        "Discarding ELS Request opcode 0x%x\n",
3915                                        purex_entry->els_frame_payload[3]);
3916                         }
3917                         break;
3918                 case SA_UPDATE_IOCB_TYPE:
3919                         qla28xx_sa_update_iocb_entry(vha, rsp->req,
3920                                 (struct sa_update_28xx *)pkt);
3921                         break;
3922
3923                 default:
3924                         /* Type Not Supported. */
3925                         ql_dbg(ql_dbg_async, vha, 0x5042,
3926                                "Received unknown response pkt type 0x%x entry status=%x.\n",
3927                                pkt->entry_type, pkt->entry_status);
3928                         break;
3929                 }
3930                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3931                 wmb();
3932         }
3933
3934         /* Adjust ring index */
3935         if (IS_P3P_TYPE(ha)) {
3936                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
3937
3938                 wrt_reg_dword(&reg->rsp_q_out[0], rsp->ring_index);
3939         } else {
3940                 wrt_reg_dword(rsp->rsp_q_out, rsp->ring_index);
3941         }
3942 }
3943
3944 static void
3945 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
3946 {
3947         int rval;
3948         uint32_t cnt;
3949         struct qla_hw_data *ha = vha->hw;
3950         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3951
3952         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3953             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3954                 return;
3955
3956         rval = QLA_SUCCESS;
3957         wrt_reg_dword(&reg->iobase_addr, 0x7C00);
3958         rd_reg_dword(&reg->iobase_addr);
3959         wrt_reg_dword(&reg->iobase_window, 0x0001);
3960         for (cnt = 10000; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3961             rval == QLA_SUCCESS; cnt--) {
3962                 if (cnt) {
3963                         wrt_reg_dword(&reg->iobase_window, 0x0001);
3964                         udelay(10);
3965                 } else
3966                         rval = QLA_FUNCTION_TIMEOUT;
3967         }
3968         if (rval == QLA_SUCCESS)
3969                 goto next_test;
3970
3971         rval = QLA_SUCCESS;
3972         wrt_reg_dword(&reg->iobase_window, 0x0003);
3973         for (cnt = 100; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3974             rval == QLA_SUCCESS; cnt--) {
3975                 if (cnt) {
3976                         wrt_reg_dword(&reg->iobase_window, 0x0003);
3977                         udelay(10);
3978                 } else
3979                         rval = QLA_FUNCTION_TIMEOUT;
3980         }
3981         if (rval != QLA_SUCCESS)
3982                 goto done;
3983
3984 next_test:
3985         if (rd_reg_dword(&reg->iobase_c8) & BIT_3)
3986                 ql_log(ql_log_info, vha, 0x504c,
3987                     "Additional code -- 0x55AA.\n");
3988
3989 done:
3990         wrt_reg_dword(&reg->iobase_window, 0x0000);
3991         rd_reg_dword(&reg->iobase_window);
3992 }
3993
3994 /**
3995  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
3996  * @irq: interrupt number
3997  * @dev_id: SCSI driver HA context
3998  *
3999  * Called by system whenever the host adapter generates an interrupt.
4000  *
4001  * Returns handled flag.
4002  */
4003 irqreturn_t
4004 qla24xx_intr_handler(int irq, void *dev_id)
4005 {
4006         scsi_qla_host_t *vha;
4007         struct qla_hw_data *ha;
4008         struct device_reg_24xx __iomem *reg;
4009         int             status;
4010         unsigned long   iter;
4011         uint32_t        stat;
4012         uint32_t        hccr;
4013         uint16_t        mb[8];
4014         struct rsp_que *rsp;
4015         unsigned long   flags;
4016         bool process_atio = false;
4017
4018         rsp = (struct rsp_que *) dev_id;
4019         if (!rsp) {
4020                 ql_log(ql_log_info, NULL, 0x5059,
4021                     "%s: NULL response queue pointer.\n", __func__);
4022                 return IRQ_NONE;
4023         }
4024
4025         ha = rsp->hw;
4026         reg = &ha->iobase->isp24;
4027         status = 0;
4028
4029         if (unlikely(pci_channel_offline(ha->pdev)))
4030                 return IRQ_HANDLED;
4031
4032         spin_lock_irqsave(&ha->hardware_lock, flags);
4033         vha = pci_get_drvdata(ha->pdev);
4034         for (iter = 50; iter--; ) {
4035                 stat = rd_reg_dword(&reg->host_status);
4036                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
4037                         break;
4038                 if (stat & HSRX_RISC_PAUSED) {
4039                         if (unlikely(pci_channel_offline(ha->pdev)))
4040                                 break;
4041
4042                         hccr = rd_reg_dword(&reg->hccr);
4043
4044                         ql_log(ql_log_warn, vha, 0x504b,
4045                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
4046                             hccr);
4047
4048                         qla2xxx_check_risc_status(vha);
4049
4050                         ha->isp_ops->fw_dump(vha);
4051                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4052                         break;
4053                 } else if ((stat & HSRX_RISC_INT) == 0)
4054                         break;
4055
4056                 switch (stat & 0xff) {
4057                 case INTR_ROM_MB_SUCCESS:
4058                 case INTR_ROM_MB_FAILED:
4059                 case INTR_MB_SUCCESS:
4060                 case INTR_MB_FAILED:
4061                         qla24xx_mbx_completion(vha, MSW(stat));
4062                         status |= MBX_INTERRUPT;
4063
4064                         break;
4065                 case INTR_ASYNC_EVENT:
4066                         mb[0] = MSW(stat);
4067                         mb[1] = rd_reg_word(&reg->mailbox1);
4068                         mb[2] = rd_reg_word(&reg->mailbox2);
4069                         mb[3] = rd_reg_word(&reg->mailbox3);
4070                         qla2x00_async_event(vha, rsp, mb);
4071                         break;
4072                 case INTR_RSP_QUE_UPDATE:
4073                 case INTR_RSP_QUE_UPDATE_83XX:
4074                         qla24xx_process_response_queue(vha, rsp);
4075                         break;
4076                 case INTR_ATIO_QUE_UPDATE_27XX:
4077                 case INTR_ATIO_QUE_UPDATE:
4078                         process_atio = true;
4079                         break;
4080                 case INTR_ATIO_RSP_QUE_UPDATE:
4081                         process_atio = true;
4082                         qla24xx_process_response_queue(vha, rsp);
4083                         break;
4084                 default:
4085                         ql_dbg(ql_dbg_async, vha, 0x504f,
4086                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
4087                         break;
4088                 }
4089                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4090                 rd_reg_dword_relaxed(&reg->hccr);
4091                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
4092                         ndelay(3500);
4093         }
4094         qla2x00_handle_mbx_completion(ha, status);
4095         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4096
4097         if (process_atio) {
4098                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
4099                 qlt_24xx_process_atio_queue(vha, 0);
4100                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
4101         }
4102
4103         return IRQ_HANDLED;
4104 }
4105
4106 static irqreturn_t
4107 qla24xx_msix_rsp_q(int irq, void *dev_id)
4108 {
4109         struct qla_hw_data *ha;
4110         struct rsp_que *rsp;
4111         struct device_reg_24xx __iomem *reg;
4112         struct scsi_qla_host *vha;
4113         unsigned long flags;
4114
4115         rsp = (struct rsp_que *) dev_id;
4116         if (!rsp) {
4117                 ql_log(ql_log_info, NULL, 0x505a,
4118                     "%s: NULL response queue pointer.\n", __func__);
4119                 return IRQ_NONE;
4120         }
4121         ha = rsp->hw;
4122         reg = &ha->iobase->isp24;
4123
4124         spin_lock_irqsave(&ha->hardware_lock, flags);
4125
4126         vha = pci_get_drvdata(ha->pdev);
4127         qla24xx_process_response_queue(vha, rsp);
4128         if (!ha->flags.disable_msix_handshake) {
4129                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4130                 rd_reg_dword_relaxed(&reg->hccr);
4131         }
4132         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4133
4134         return IRQ_HANDLED;
4135 }
4136
4137 static irqreturn_t
4138 qla24xx_msix_default(int irq, void *dev_id)
4139 {
4140         scsi_qla_host_t *vha;
4141         struct qla_hw_data *ha;
4142         struct rsp_que *rsp;
4143         struct device_reg_24xx __iomem *reg;
4144         int             status;
4145         uint32_t        stat;
4146         uint32_t        hccr;
4147         uint16_t        mb[8];
4148         unsigned long flags;
4149         bool process_atio = false;
4150
4151         rsp = (struct rsp_que *) dev_id;
4152         if (!rsp) {
4153                 ql_log(ql_log_info, NULL, 0x505c,
4154                     "%s: NULL response queue pointer.\n", __func__);
4155                 return IRQ_NONE;
4156         }
4157         ha = rsp->hw;
4158         reg = &ha->iobase->isp24;
4159         status = 0;
4160
4161         spin_lock_irqsave(&ha->hardware_lock, flags);
4162         vha = pci_get_drvdata(ha->pdev);
4163         do {
4164                 stat = rd_reg_dword(&reg->host_status);
4165                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
4166                         break;
4167                 if (stat & HSRX_RISC_PAUSED) {
4168                         if (unlikely(pci_channel_offline(ha->pdev)))
4169                                 break;
4170
4171                         hccr = rd_reg_dword(&reg->hccr);
4172
4173                         ql_log(ql_log_info, vha, 0x5050,
4174                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
4175                             hccr);
4176
4177                         qla2xxx_check_risc_status(vha);
4178                         vha->hw_err_cnt++;
4179
4180                         ha->isp_ops->fw_dump(vha);
4181                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4182                         break;
4183                 } else if ((stat & HSRX_RISC_INT) == 0)
4184                         break;
4185
4186                 switch (stat & 0xff) {
4187                 case INTR_ROM_MB_SUCCESS:
4188                 case INTR_ROM_MB_FAILED:
4189                 case INTR_MB_SUCCESS:
4190                 case INTR_MB_FAILED:
4191                         qla24xx_mbx_completion(vha, MSW(stat));
4192                         status |= MBX_INTERRUPT;
4193
4194                         break;
4195                 case INTR_ASYNC_EVENT:
4196                         mb[0] = MSW(stat);
4197                         mb[1] = rd_reg_word(&reg->mailbox1);
4198                         mb[2] = rd_reg_word(&reg->mailbox2);
4199                         mb[3] = rd_reg_word(&reg->mailbox3);
4200                         qla2x00_async_event(vha, rsp, mb);
4201                         break;
4202                 case INTR_RSP_QUE_UPDATE:
4203                 case INTR_RSP_QUE_UPDATE_83XX:
4204                         qla24xx_process_response_queue(vha, rsp);
4205                         break;
4206                 case INTR_ATIO_QUE_UPDATE_27XX:
4207                 case INTR_ATIO_QUE_UPDATE:
4208                         process_atio = true;
4209                         break;
4210                 case INTR_ATIO_RSP_QUE_UPDATE:
4211                         process_atio = true;
4212                         qla24xx_process_response_queue(vha, rsp);
4213                         break;
4214                 default:
4215                         ql_dbg(ql_dbg_async, vha, 0x5051,
4216                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
4217                         break;
4218                 }
4219                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4220         } while (0);
4221         qla2x00_handle_mbx_completion(ha, status);
4222         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4223
4224         if (process_atio) {
4225                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
4226                 qlt_24xx_process_atio_queue(vha, 0);
4227                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
4228         }
4229
4230         return IRQ_HANDLED;
4231 }
4232
4233 irqreturn_t
4234 qla2xxx_msix_rsp_q(int irq, void *dev_id)
4235 {
4236         struct qla_hw_data *ha;
4237         struct qla_qpair *qpair;
4238
4239         qpair = dev_id;
4240         if (!qpair) {
4241                 ql_log(ql_log_info, NULL, 0x505b,
4242                     "%s: NULL response queue pointer.\n", __func__);
4243                 return IRQ_NONE;
4244         }
4245         ha = qpair->hw;
4246
4247         queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
4248
4249         return IRQ_HANDLED;
4250 }
4251
4252 irqreturn_t
4253 qla2xxx_msix_rsp_q_hs(int irq, void *dev_id)
4254 {
4255         struct qla_hw_data *ha;
4256         struct qla_qpair *qpair;
4257         struct device_reg_24xx __iomem *reg;
4258         unsigned long flags;
4259
4260         qpair = dev_id;
4261         if (!qpair) {
4262                 ql_log(ql_log_info, NULL, 0x505b,
4263                     "%s: NULL response queue pointer.\n", __func__);
4264                 return IRQ_NONE;
4265         }
4266         ha = qpair->hw;
4267
4268         reg = &ha->iobase->isp24;
4269         spin_lock_irqsave(&ha->hardware_lock, flags);
4270         wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4271         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4272
4273         queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
4274
4275         return IRQ_HANDLED;
4276 }
4277
4278 /* Interrupt handling helpers. */
4279
4280 struct qla_init_msix_entry {
4281         const char *name;
4282         irq_handler_t handler;
4283 };
4284
4285 static const struct qla_init_msix_entry msix_entries[] = {
4286         { "default", qla24xx_msix_default },
4287         { "rsp_q", qla24xx_msix_rsp_q },
4288         { "atio_q", qla83xx_msix_atio_q },
4289         { "qpair_multiq", qla2xxx_msix_rsp_q },
4290         { "qpair_multiq_hs", qla2xxx_msix_rsp_q_hs },
4291 };
4292
4293 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
4294         { "qla2xxx (default)", qla82xx_msix_default },
4295         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
4296 };
4297
4298 static int
4299 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
4300 {
4301         int i, ret;
4302         struct qla_msix_entry *qentry;
4303         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4304         int min_vecs = QLA_BASE_VECTORS;
4305         struct irq_affinity desc = {
4306                 .pre_vectors = QLA_BASE_VECTORS,
4307         };
4308
4309         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
4310             IS_ATIO_MSIX_CAPABLE(ha)) {
4311                 desc.pre_vectors++;
4312                 min_vecs++;
4313         }
4314
4315         if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
4316                 /* user wants to control IRQ setting for target mode */
4317                 ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
4318                     min((u16)ha->msix_count, (u16)(num_online_cpus() + min_vecs)),
4319                     PCI_IRQ_MSIX);
4320         } else
4321                 ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
4322                     min((u16)ha->msix_count, (u16)(num_online_cpus() + min_vecs)),
4323                     PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
4324                     &desc);
4325
4326         if (ret < 0) {
4327                 ql_log(ql_log_fatal, vha, 0x00c7,
4328                     "MSI-X: Failed to enable support, "
4329                     "giving   up -- %d/%d.\n",
4330                     ha->msix_count, ret);
4331                 goto msix_out;
4332         } else if (ret < ha->msix_count) {
4333                 ql_log(ql_log_info, vha, 0x00c6,
4334                     "MSI-X: Using %d vectors\n", ret);
4335                 ha->msix_count = ret;
4336                 /* Recalculate queue values */
4337                 if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
4338                         ha->max_req_queues = ha->msix_count - 1;
4339
4340                         /* ATIOQ needs 1 vector. That's 1 less QPair */
4341                         if (QLA_TGT_MODE_ENABLED())
4342                                 ha->max_req_queues--;
4343
4344                         ha->max_rsp_queues = ha->max_req_queues;
4345
4346                         ha->max_qpairs = ha->max_req_queues - 1;
4347                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
4348                             "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
4349                 }
4350         }
4351         vha->irq_offset = desc.pre_vectors;
4352         ha->msix_entries = kcalloc(ha->msix_count,
4353                                    sizeof(struct qla_msix_entry),
4354                                    GFP_KERNEL);
4355         if (!ha->msix_entries) {
4356                 ql_log(ql_log_fatal, vha, 0x00c8,
4357                     "Failed to allocate memory for ha->msix_entries.\n");
4358                 ret = -ENOMEM;
4359                 goto free_irqs;
4360         }
4361         ha->flags.msix_enabled = 1;
4362
4363         for (i = 0; i < ha->msix_count; i++) {
4364                 qentry = &ha->msix_entries[i];
4365                 qentry->vector = pci_irq_vector(ha->pdev, i);
4366                 qentry->entry = i;
4367                 qentry->have_irq = 0;
4368                 qentry->in_use = 0;
4369                 qentry->handle = NULL;
4370         }
4371
4372         /* Enable MSI-X vectors for the base queue */
4373         for (i = 0; i < QLA_BASE_VECTORS; i++) {
4374                 qentry = &ha->msix_entries[i];
4375                 qentry->handle = rsp;
4376                 rsp->msix = qentry;
4377                 scnprintf(qentry->name, sizeof(qentry->name),
4378                     "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
4379                 if (IS_P3P_TYPE(ha))
4380                         ret = request_irq(qentry->vector,
4381                                 qla82xx_msix_entries[i].handler,
4382                                 0, qla82xx_msix_entries[i].name, rsp);
4383                 else
4384                         ret = request_irq(qentry->vector,
4385                                 msix_entries[i].handler,
4386                                 0, qentry->name, rsp);
4387                 if (ret)
4388                         goto msix_register_fail;
4389                 qentry->have_irq = 1;
4390                 qentry->in_use = 1;
4391         }
4392
4393         /*
4394          * If target mode is enable, also request the vector for the ATIO
4395          * queue.
4396          */
4397         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
4398             IS_ATIO_MSIX_CAPABLE(ha)) {
4399                 qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
4400                 rsp->msix = qentry;
4401                 qentry->handle = rsp;
4402                 scnprintf(qentry->name, sizeof(qentry->name),
4403                     "qla2xxx%lu_%s", vha->host_no,
4404                     msix_entries[QLA_ATIO_VECTOR].name);
4405                 qentry->in_use = 1;
4406                 ret = request_irq(qentry->vector,
4407                         msix_entries[QLA_ATIO_VECTOR].handler,
4408                         0, qentry->name, rsp);
4409                 qentry->have_irq = 1;
4410         }
4411
4412 msix_register_fail:
4413         if (ret) {
4414                 ql_log(ql_log_fatal, vha, 0x00cb,
4415                     "MSI-X: unable to register handler -- %x/%d.\n",
4416                     qentry->vector, ret);
4417                 qla2x00_free_irqs(vha);
4418                 ha->mqenable = 0;
4419                 goto msix_out;
4420         }
4421
4422         /* Enable MSI-X vector for response queue update for queue 0 */
4423         if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
4424                 if (ha->msixbase && ha->mqiobase &&
4425                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
4426                      ql2xmqsupport))
4427                         ha->mqenable = 1;
4428         } else
4429                 if (ha->mqiobase &&
4430                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
4431                      ql2xmqsupport))
4432                         ha->mqenable = 1;
4433         ql_dbg(ql_dbg_multiq, vha, 0xc005,
4434             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4435             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4436         ql_dbg(ql_dbg_init, vha, 0x0055,
4437             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4438             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4439
4440 msix_out:
4441         return ret;
4442
4443 free_irqs:
4444         pci_free_irq_vectors(ha->pdev);
4445         goto msix_out;
4446 }
4447
4448 int
4449 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
4450 {
4451         int ret = QLA_FUNCTION_FAILED;
4452         device_reg_t *reg = ha->iobase;
4453         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4454
4455         /* If possible, enable MSI-X. */
4456         if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
4457             !IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
4458             !IS_QLAFX00(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha)))
4459                 goto skip_msi;
4460
4461         if (ql2xenablemsix == 2)
4462                 goto skip_msix;
4463
4464         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
4465                 (ha->pdev->subsystem_device == 0x7040 ||
4466                 ha->pdev->subsystem_device == 0x7041 ||
4467                 ha->pdev->subsystem_device == 0x1705)) {
4468                 ql_log(ql_log_warn, vha, 0x0034,
4469                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
4470                         ha->pdev->subsystem_vendor,
4471                         ha->pdev->subsystem_device);
4472                 goto skip_msi;
4473         }
4474
4475         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
4476                 ql_log(ql_log_warn, vha, 0x0035,
4477                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
4478                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
4479                 goto skip_msix;
4480         }
4481
4482         ret = qla24xx_enable_msix(ha, rsp);
4483         if (!ret) {
4484                 ql_dbg(ql_dbg_init, vha, 0x0036,
4485                     "MSI-X: Enabled (0x%X, 0x%X).\n",
4486                     ha->chip_revision, ha->fw_attributes);
4487                 goto clear_risc_ints;
4488         }
4489
4490 skip_msix:
4491
4492         ql_log(ql_log_info, vha, 0x0037,
4493             "Falling back-to MSI mode -- ret=%d.\n", ret);
4494
4495         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
4496             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
4497             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
4498                 goto skip_msi;
4499
4500         ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
4501         if (ret > 0) {
4502                 ql_dbg(ql_dbg_init, vha, 0x0038,
4503                     "MSI: Enabled.\n");
4504                 ha->flags.msi_enabled = 1;
4505         } else
4506                 ql_log(ql_log_warn, vha, 0x0039,
4507                     "Falling back-to INTa mode -- ret=%d.\n", ret);
4508 skip_msi:
4509
4510         /* Skip INTx on ISP82xx. */
4511         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
4512                 return QLA_FUNCTION_FAILED;
4513
4514         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
4515             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
4516             QLA2XXX_DRIVER_NAME, rsp);
4517         if (ret) {
4518                 ql_log(ql_log_warn, vha, 0x003a,
4519                     "Failed to reserve interrupt %d already in use.\n",
4520                     ha->pdev->irq);
4521                 goto fail;
4522         } else if (!ha->flags.msi_enabled) {
4523                 ql_dbg(ql_dbg_init, vha, 0x0125,
4524                     "INTa mode: Enabled.\n");
4525                 ha->flags.mr_intr_valid = 1;
4526                 /* Set max_qpair to 0, as MSI-X and MSI in not enabled */
4527                 ha->max_qpairs = 0;
4528         }
4529
4530 clear_risc_ints:
4531         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
4532                 goto fail;
4533
4534         spin_lock_irq(&ha->hardware_lock);
4535         wrt_reg_word(&reg->isp.semaphore, 0);
4536         spin_unlock_irq(&ha->hardware_lock);
4537
4538 fail:
4539         return ret;
4540 }
4541
4542 void
4543 qla2x00_free_irqs(scsi_qla_host_t *vha)
4544 {
4545         struct qla_hw_data *ha = vha->hw;
4546         struct rsp_que *rsp;
4547         struct qla_msix_entry *qentry;
4548         int i;
4549
4550         /*
4551          * We need to check that ha->rsp_q_map is valid in case we are called
4552          * from a probe failure context.
4553          */
4554         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
4555                 goto free_irqs;
4556         rsp = ha->rsp_q_map[0];
4557
4558         if (ha->flags.msix_enabled) {
4559                 for (i = 0; i < ha->msix_count; i++) {
4560                         qentry = &ha->msix_entries[i];
4561                         if (qentry->have_irq) {
4562                                 irq_set_affinity_notifier(qentry->vector, NULL);
4563                                 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
4564                         }
4565                 }
4566                 kfree(ha->msix_entries);
4567                 ha->msix_entries = NULL;
4568                 ha->flags.msix_enabled = 0;
4569                 ql_dbg(ql_dbg_init, vha, 0x0042,
4570                         "Disabled MSI-X.\n");
4571         } else {
4572                 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
4573         }
4574
4575 free_irqs:
4576         pci_free_irq_vectors(ha->pdev);
4577 }
4578
4579 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
4580         struct qla_msix_entry *msix, int vector_type)
4581 {
4582         const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
4583         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4584         int ret;
4585
4586         scnprintf(msix->name, sizeof(msix->name),
4587             "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
4588         ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
4589         if (ret) {
4590                 ql_log(ql_log_fatal, vha, 0x00e6,
4591                     "MSI-X: Unable to register handler -- %x/%d.\n",
4592                     msix->vector, ret);
4593                 return ret;
4594         }
4595         msix->have_irq = 1;
4596         msix->handle = qpair;
4597         return ret;
4598 }