drivers/scsi/qla2xxx/qla_isr.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2014 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8 #include "qla_target.h"
   9
  10 #include <linux/delay.h>
  11 #include <linux/slab.h>
  12 #include <linux/cpu.h>
  13 #include <linux/t10-pi.h>
  14 #include <scsi/scsi_tcq.h>
  15 #include <scsi/scsi_bsg_fc.h>
  16 #include <scsi/scsi_eh.h>
  17 #include <scsi/fc/fc_fs.h>
  18 #include <linux/nvme-fc-driver.h>
  19
  20 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
  21 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
  22 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
  23 static int qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
  24         sts_entry_t *);
  25
  26 /**
  27  * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
  28  * @irq:
  29  * @dev_id: SCSI driver HA context
  30  *
  31  * Called by system whenever the host adapter generates an interrupt.
  32  *
  33  * Returns handled flag.
  34  */
  35 irqreturn_t
  36 qla2100_intr_handler(int irq, void *dev_id)
  37 {
  38         scsi_qla_host_t *vha;
  39         struct qla_hw_data *ha;
  40         struct device_reg_2xxx __iomem *reg;
  41         int             status;
  42         unsigned long   iter;
  43         uint16_t        hccr;
  44         uint16_t        mb[4];
  45         struct rsp_que *rsp;
  46         unsigned long   flags;
  47
  48         rsp = (struct rsp_que *) dev_id;
  49         if (!rsp) {
  50                 ql_log(ql_log_info, NULL, 0x505d,
  51                     "%s: NULL response queue pointer.\n", __func__);
  52                 return (IRQ_NONE);
  53         }
  54
  55         ha = rsp->hw;
  56         reg = &ha->iobase->isp;
  57         status = 0;
  58
  59         spin_lock_irqsave(&ha->hardware_lock, flags);
  60         vha = pci_get_drvdata(ha->pdev);
  61         for (iter = 50; iter--; ) {
  62                 hccr = RD_REG_WORD(&reg->hccr);
  63                 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
  64                         break;
  65                 if (hccr & HCCR_RISC_PAUSE) {
  66                         if (pci_channel_offline(ha->pdev))
  67                                 break;
  68
  69                         /*
  70                          * Issue a "HARD" reset in order for the RISC interrupt
  71                          * bit to be cleared.  Schedule a big hammer to get
  72                          * out of the RISC PAUSED state.
  73                          */
  74                         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
  75                         RD_REG_WORD(&reg->hccr);
  76
  77                         ha->isp_ops->fw_dump(vha, 1);
  78                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
  79                         break;
  80                 } else if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
  81                         break;
  82
  83                 if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
  84                         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
  85                         RD_REG_WORD(&reg->hccr);
  86
  87                         /* Get mailbox data. */
  88                         mb[0] = RD_MAILBOX_REG(ha, reg, 0);
  89                         if (mb[0] > 0x3fff && mb[0] < 0x8000) {
  90                                 qla2x00_mbx_completion(vha, mb[0]);
  91                                 status |= MBX_INTERRUPT;
  92                         } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
  93                                 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
  94                                 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
  95                                 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
  96                                 qla2x00_async_event(vha, rsp, mb);
  97                         } else {
  98                                 /*EMPTY*/
  99                                 ql_dbg(ql_dbg_async, vha, 0x5025,
 100                                     "Unrecognized interrupt type (%d).\n",
 101                                     mb[0]);
 102                         }
 103                         /* Release mailbox registers. */
 104                         WRT_REG_WORD(&reg->semaphore, 0);
 105                         RD_REG_WORD(&reg->semaphore);
 106                 } else {
 107                         qla2x00_process_response_queue(rsp);
 108
 109                         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 110                         RD_REG_WORD(&reg->hccr);
 111                 }
 112         }
 113         qla2x00_handle_mbx_completion(ha, status);
 114         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 115
 116         return (IRQ_HANDLED);
 117 }
 118
 119 bool
 120 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
 121 {
 122         /* Check for PCI disconnection */
 123         if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
 124                 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
 125                     !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
 126                     !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
 127                         /*
 128                          * Schedule this (only once) on the default system
 129                          * workqueue so that all the adapter workqueues and the
 130                          * DPC thread can be shutdown cleanly.
 131                          */
 132                         schedule_work(&vha->hw->board_disable);
 133                 }
 134                 return true;
 135         } else
 136                 return false;
 137 }
 138
 139 bool
 140 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
 141 {
 142         return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
 143 }
 144
 145 /**
 146  * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 147  * @irq:
 148  * @dev_id: SCSI driver HA context
 149  *
 150  * Called by system whenever the host adapter generates an interrupt.
 151  *
 152  * Returns handled flag.
 153  */
 154 irqreturn_t
 155 qla2300_intr_handler(int irq, void *dev_id)
 156 {
 157         scsi_qla_host_t *vha;
 158         struct device_reg_2xxx __iomem *reg;
 159         int             status;
 160         unsigned long   iter;
 161         uint32_t        stat;
 162         uint16_t        hccr;
 163         uint16_t        mb[4];
 164         struct rsp_que *rsp;
 165         struct qla_hw_data *ha;
 166         unsigned long   flags;
 167
 168         rsp = (struct rsp_que *) dev_id;
 169         if (!rsp) {
 170                 ql_log(ql_log_info, NULL, 0x5058,
 171                     "%s: NULL response queue pointer.\n", __func__);
 172                 return (IRQ_NONE);
 173         }
 174
 175         ha = rsp->hw;
 176         reg = &ha->iobase->isp;
 177         status = 0;
 178
 179         spin_lock_irqsave(&ha->hardware_lock, flags);
 180         vha = pci_get_drvdata(ha->pdev);
 181         for (iter = 50; iter--; ) {
 182                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
 183                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
 184                         break;
 185                 if (stat & HSR_RISC_PAUSED) {
 186                         if (unlikely(pci_channel_offline(ha->pdev)))
 187                                 break;
 188
 189                         hccr = RD_REG_WORD(&reg->hccr);
 190
 191                         if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
 192                                 ql_log(ql_log_warn, vha, 0x5026,
 193                                     "Parity error -- HCCR=%x, Dumping "
 194                                     "firmware.\n", hccr);
 195                         else
 196                                 ql_log(ql_log_warn, vha, 0x5027,
 197                                     "RISC paused -- HCCR=%x, Dumping "
 198                                     "firmware.\n", hccr);
 199
 200                         /*
 201                          * Issue a "HARD" reset in order for the RISC
 202                          * interrupt bit to be cleared.  Schedule a big
 203                          * hammer to get out of the RISC PAUSED state.
 204                          */
 205                         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 206                         RD_REG_WORD(&reg->hccr);
 207
 208                         ha->isp_ops->fw_dump(vha, 1);
 209                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 210                         break;
 211                 } else if ((stat & HSR_RISC_INT) == 0)
 212                         break;
 213
 214                 switch (stat & 0xff) {
 215                 case 0x1:
 216                 case 0x2:
 217                 case 0x10:
 218                 case 0x11:
 219                         qla2x00_mbx_completion(vha, MSW(stat));
 220                         status |= MBX_INTERRUPT;
 221
 222                         /* Release mailbox registers. */
 223                         WRT_REG_WORD(&reg->semaphore, 0);
 224                         break;
 225                 case 0x12:
 226                         mb[0] = MSW(stat);
 227                         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 228                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 229                         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 230                         qla2x00_async_event(vha, rsp, mb);
 231                         break;
 232                 case 0x13:
 233                         qla2x00_process_response_queue(rsp);
 234                         break;
 235                 case 0x15:
 236                         mb[0] = MBA_CMPLT_1_16BIT;
 237                         mb[1] = MSW(stat);
 238                         qla2x00_async_event(vha, rsp, mb);
 239                         break;
 240                 case 0x16:
 241                         mb[0] = MBA_SCSI_COMPLETION;
 242                         mb[1] = MSW(stat);
 243                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 244                         qla2x00_async_event(vha, rsp, mb);
 245                         break;
 246                 default:
 247                         ql_dbg(ql_dbg_async, vha, 0x5028,
 248                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
 249                         break;
 250                 }
 251                 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 252                 RD_REG_WORD_RELAXED(&reg->hccr);
 253         }
 254         qla2x00_handle_mbx_completion(ha, status);
 255         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 256
 257         return (IRQ_HANDLED);
 258 }
 259
 260 /**
 261  * qla2x00_mbx_completion() - Process mailbox command completions.
 262  * @vha: SCSI driver HA context
 263  * @mb0: Mailbox0 register
 264  */
 265 static void
 266 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 267 {
 268         uint16_t        cnt;
 269         uint32_t        mboxes;
 270         uint16_t __iomem *wptr;
 271         struct qla_hw_data *ha = vha->hw;
 272         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 273
 274         /* Read all mbox registers? */
 275         WARN_ON_ONCE(ha->mbx_count > 32);
 276         mboxes = (1ULL << ha->mbx_count) - 1;
 277         if (!ha->mcp)
 278                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 279         else
 280                 mboxes = ha->mcp->in_mb;
 281
 282         /* Load return mailbox registers. */
 283         ha->flags.mbox_int = 1;
 284         ha->mailbox_out[0] = mb0;
 285         mboxes >>= 1;
 286         wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
 287
 288         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 289                 if (IS_QLA2200(ha) && cnt == 8)
 290                         wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
 291                 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 292                         ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 293                 else if (mboxes & BIT_0)
 294                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
 295
 296                 wptr++;
 297                 mboxes >>= 1;
 298         }
 299 }
 300
 301 static void
 302 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 303 {
 304         static char *event[] =
 305                 { "Complete", "Request Notification", "Time Extension" };
 306         int rval;
 307         struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 308         struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 309         uint16_t __iomem *wptr;
 310         uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 311
 312         /* Seed data -- mailbox1 -> mailbox7. */
 313         if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 314                 wptr = (uint16_t __iomem *)&reg24->mailbox1;
 315         else if (IS_QLA8044(vha->hw))
 316                 wptr = (uint16_t __iomem *)&reg82->mailbox_out[1];
 317         else
 318                 return;
 319
 320         for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 321                 mb[cnt] = RD_REG_WORD(wptr);
 322
 323         ql_dbg(ql_dbg_async, vha, 0x5021,
 324             "Inter-Driver Communication %s -- "
 325             "%04x %04x %04x %04x %04x %04x %04x.\n",
 326             event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 327             mb[4], mb[5], mb[6]);
 328         switch (aen) {
 329         /* Handle IDC Error completion case. */
 330         case MBA_IDC_COMPLETE:
 331                 if (mb[1] >> 15) {
 332                         vha->hw->flags.idc_compl_status = 1;
 333                         if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 334                                 complete(&vha->hw->dcbx_comp);
 335                 }
 336                 break;
 337
 338         case MBA_IDC_NOTIFY:
 339                 /* Acknowledgement needed? [Notify && non-zero timeout]. */
 340                 timeout = (descr >> 8) & 0xf;
 341                 ql_dbg(ql_dbg_async, vha, 0x5022,
 342                     "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 343                     vha->host_no, event[aen & 0xff], timeout);
 344
 345                 if (!timeout)
 346                         return;
 347                 rval = qla2x00_post_idc_ack_work(vha, mb);
 348                 if (rval != QLA_SUCCESS)
 349                         ql_log(ql_log_warn, vha, 0x5023,
 350                             "IDC failed to post ACK.\n");
 351                 break;
 352         case MBA_IDC_TIME_EXT:
 353                 vha->hw->idc_extend_tmo = descr;
 354                 ql_dbg(ql_dbg_async, vha, 0x5087,
 355                     "%lu Inter-Driver Communication %s -- "
 356                     "Extend timeout by=%d.\n",
 357                     vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 358                 break;
 359         }
 360 }
 361
 362 #define LS_UNKNOWN      2
 363 const char *
 364 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 365 {
 366         static const char *const link_speeds[] = {
 367                 "1", "2", "?", "4", "8", "16", "32", "10"
 368         };
 369 #define QLA_LAST_SPEED  7
 370
 371         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 372                 return link_speeds[0];
 373         else if (speed == 0x13)
 374                 return link_speeds[QLA_LAST_SPEED];
 375         else if (speed < QLA_LAST_SPEED)
 376                 return link_speeds[speed];
 377         else
 378                 return link_speeds[LS_UNKNOWN];
 379 }
 380
 381 static void
 382 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 383 {
 384         struct qla_hw_data *ha = vha->hw;
 385
 386         /*
 387          * 8200 AEN Interpretation:
 388          * mb[0] = AEN code
 389          * mb[1] = AEN Reason code
 390          * mb[2] = LSW of Peg-Halt Status-1 Register
 391          * mb[6] = MSW of Peg-Halt Status-1 Register
 392          * mb[3] = LSW of Peg-Halt Status-2 register
 393          * mb[7] = MSW of Peg-Halt Status-2 register
 394          * mb[4] = IDC Device-State Register value
 395          * mb[5] = IDC Driver-Presence Register value
 396          */
 397         ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 398             "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 399             mb[0], mb[1], mb[2], mb[6]);
 400         ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 401             "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 402             "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 403
 404         if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 405                                 IDC_HEARTBEAT_FAILURE)) {
 406                 ha->flags.nic_core_hung = 1;
 407                 ql_log(ql_log_warn, vha, 0x5060,
 408                     "83XX: F/W Error Reported: Check if reset required.\n");
 409
 410                 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 411                         uint32_t protocol_engine_id, fw_err_code, err_level;
 412
 413                         /*
 414                          * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 415                          *  - PEG-Halt Status-1 Register:
 416                          *      (LSW = mb[2], MSW = mb[6])
 417                          *      Bits 0-7   = protocol-engine ID
 418                          *      Bits 8-28  = f/w error code
 419                          *      Bits 29-31 = Error-level
 420                          *          Error-level 0x1 = Non-Fatal error
 421                          *          Error-level 0x2 = Recoverable Fatal error
 422                          *          Error-level 0x4 = UnRecoverable Fatal error
 423                          *  - PEG-Halt Status-2 Register:
 424                          *      (LSW = mb[3], MSW = mb[7])
 425                          */
 426                         protocol_engine_id = (mb[2] & 0xff);
 427                         fw_err_code = (((mb[2] & 0xff00) >> 8) |
 428                             ((mb[6] & 0x1fff) << 8));
 429                         err_level = ((mb[6] & 0xe000) >> 13);
 430                         ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 431                             "Register: protocol_engine_id=0x%x "
 432                             "fw_err_code=0x%x err_level=0x%x.\n",
 433                             protocol_engine_id, fw_err_code, err_level);
 434                         ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 435                             "Register: 0x%x%x.\n", mb[7], mb[3]);
 436                         if (err_level == ERR_LEVEL_NON_FATAL) {
 437                                 ql_log(ql_log_warn, vha, 0x5063,
 438                                     "Not a fatal error, f/w has recovered itself.\n");
 439                         } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 440                                 ql_log(ql_log_fatal, vha, 0x5064,
 441                                     "Recoverable Fatal error: Chip reset "
 442                                     "required.\n");
 443                                 qla83xx_schedule_work(vha,
 444                                     QLA83XX_NIC_CORE_RESET);
 445                         } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 446                                 ql_log(ql_log_fatal, vha, 0x5065,
 447                                     "Unrecoverable Fatal error: Set FAILED "
 448                                     "state, reboot required.\n");
 449                                 qla83xx_schedule_work(vha,
 450                                     QLA83XX_NIC_CORE_UNRECOVERABLE);
 451                         }
 452                 }
 453
 454                 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 455                         uint16_t peg_fw_state, nw_interface_link_up;
 456                         uint16_t nw_interface_signal_detect, sfp_status;
 457                         uint16_t htbt_counter, htbt_monitor_enable;
 458                         uint16_t sfp_additional_info, sfp_multirate;
 459                         uint16_t sfp_tx_fault, link_speed, dcbx_status;
 460
 461                         /*
 462                          * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 463                          *  - PEG-to-FC Status Register:
 464                          *      (LSW = mb[2], MSW = mb[6])
 465                          *      Bits 0-7   = Peg-Firmware state
 466                          *      Bit 8      = N/W Interface Link-up
 467                          *      Bit 9      = N/W Interface signal detected
 468                          *      Bits 10-11 = SFP Status
 469                          *        SFP Status 0x0 = SFP+ transceiver not expected
 470                          *        SFP Status 0x1 = SFP+ transceiver not present
 471                          *        SFP Status 0x2 = SFP+ transceiver invalid
 472                          *        SFP Status 0x3 = SFP+ transceiver present and
 473                          *        valid
 474                          *      Bits 12-14 = Heartbeat Counter
 475                          *      Bit 15     = Heartbeat Monitor Enable
 476                          *      Bits 16-17 = SFP Additional Info
 477                          *        SFP info 0x0 = Unregocnized transceiver for
 478                          *        Ethernet
 479                          *        SFP info 0x1 = SFP+ brand validation failed
 480                          *        SFP info 0x2 = SFP+ speed validation failed
 481                          *        SFP info 0x3 = SFP+ access error
 482                          *      Bit 18     = SFP Multirate
 483                          *      Bit 19     = SFP Tx Fault
 484                          *      Bits 20-22 = Link Speed
 485                          *      Bits 23-27 = Reserved
 486                          *      Bits 28-30 = DCBX Status
 487                          *        DCBX Status 0x0 = DCBX Disabled
 488                          *        DCBX Status 0x1 = DCBX Enabled
 489                          *        DCBX Status 0x2 = DCBX Exchange error
 490                          *      Bit 31     = Reserved
 491                          */
 492                         peg_fw_state = (mb[2] & 0x00ff);
 493                         nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 494                         nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 495                         sfp_status = ((mb[2] & 0x0c00) >> 10);
 496                         htbt_counter = ((mb[2] & 0x7000) >> 12);
 497                         htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 498                         sfp_additional_info = (mb[6] & 0x0003);
 499                         sfp_multirate = ((mb[6] & 0x0004) >> 2);
 500                         sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 501                         link_speed = ((mb[6] & 0x0070) >> 4);
 502                         dcbx_status = ((mb[6] & 0x7000) >> 12);
 503
 504                         ql_log(ql_log_warn, vha, 0x5066,
 505                             "Peg-to-Fc Status Register:\n"
 506                             "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 507                             "nw_interface_signal_detect=0x%x"
 508                             "\nsfp_statis=0x%x.\n ", peg_fw_state,
 509                             nw_interface_link_up, nw_interface_signal_detect,
 510                             sfp_status);
 511                         ql_log(ql_log_warn, vha, 0x5067,
 512                             "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 513                             "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
 514                             htbt_counter, htbt_monitor_enable,
 515                             sfp_additional_info, sfp_multirate);
 516                         ql_log(ql_log_warn, vha, 0x5068,
 517                             "sfp_tx_fault=0x%x, link_state=0x%x, "
 518                             "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 519                             dcbx_status);
 520
 521                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 522                 }
 523
 524                 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 525                         ql_log(ql_log_warn, vha, 0x5069,
 526                             "Heartbeat Failure encountered, chip reset "
 527                             "required.\n");
 528
 529                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 530                 }
 531         }
 532
 533         if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 534                 ql_log(ql_log_info, vha, 0x506a,
 535                     "IDC Device-State changed = 0x%x.\n", mb[4]);
 536                 if (ha->flags.nic_core_reset_owner)
 537                         return;
 538                 qla83xx_schedule_work(vha, MBA_IDC_AEN);
 539         }
 540 }
 541
 542 int
 543 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 544 {
 545         struct qla_hw_data *ha = vha->hw;
 546         scsi_qla_host_t *vp;
 547         uint32_t vp_did;
 548         unsigned long flags;
 549         int ret = 0;
 550
 551         if (!ha->num_vhosts)
 552                 return ret;
 553
 554         spin_lock_irqsave(&ha->vport_slock, flags);
 555         list_for_each_entry(vp, &ha->vp_list, list) {
 556                 vp_did = vp->d_id.b24;
 557                 if (vp_did == rscn_entry) {
 558                         ret = 1;
 559                         break;
 560                 }
 561         }
 562         spin_unlock_irqrestore(&ha->vport_slock, flags);
 563
 564         return ret;
 565 }
 566
 567 fc_port_t *
 568 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
 569 {
 570         fc_port_t *f, *tf;
 571
 572         f = tf = NULL;
 573         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
 574                 if (f->loop_id == loop_id)
 575                         return f;
 576         return NULL;
 577 }
 578
 579 fc_port_t *
 580 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
 581 {
 582         fc_port_t *f, *tf;
 583
 584         f = tf = NULL;
 585         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 586                 if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
 587                         if (incl_deleted)
 588                                 return f;
 589                         else if (f->deleted == 0)
 590                                 return f;
 591                 }
 592         }
 593         return NULL;
 594 }
 595
 596 fc_port_t *
 597 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
 598         u8 incl_deleted)
 599 {
 600         fc_port_t *f, *tf;
 601
 602         f = tf = NULL;
 603         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 604                 if (f->d_id.b24 == id->b24) {
 605                         if (incl_deleted)
 606                                 return f;
 607                         else if (f->deleted == 0)
 608                                 return f;
 609                 }
 610         }
 611         return NULL;
 612 }
 613
 614 /**
 615  * qla2x00_async_event() - Process aynchronous events.
 616  * @vha: SCSI driver HA context
 617  * @rsp: response queue
 618  * @mb: Mailbox registers (0 - 3)
 619  */
 620 void
 621 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
 622 {
 623         uint16_t        handle_cnt;
 624         uint16_t        cnt, mbx;
 625         uint32_t        handles[5];
 626         struct qla_hw_data *ha = vha->hw;
 627         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 628         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
 629         struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 630         uint32_t        rscn_entry, host_pid;
 631         unsigned long   flags;
 632         fc_port_t       *fcport = NULL;
 633
 634         if (!vha->hw->flags.fw_started)
 635                 return;
 636
 637         /* Setup to process RIO completion. */
 638         handle_cnt = 0;
 639         if (IS_CNA_CAPABLE(ha))
 640                 goto skip_rio;
 641         switch (mb[0]) {
 642         case MBA_SCSI_COMPLETION:
 643                 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
 644                 handle_cnt = 1;
 645                 break;
 646         case MBA_CMPLT_1_16BIT:
 647                 handles[0] = mb[1];
 648                 handle_cnt = 1;
 649                 mb[0] = MBA_SCSI_COMPLETION;
 650                 break;
 651         case MBA_CMPLT_2_16BIT:
 652                 handles[0] = mb[1];
 653                 handles[1] = mb[2];
 654                 handle_cnt = 2;
 655                 mb[0] = MBA_SCSI_COMPLETION;
 656                 break;
 657         case MBA_CMPLT_3_16BIT:
 658                 handles[0] = mb[1];
 659                 handles[1] = mb[2];
 660                 handles[2] = mb[3];
 661                 handle_cnt = 3;
 662                 mb[0] = MBA_SCSI_COMPLETION;
 663                 break;
 664         case MBA_CMPLT_4_16BIT:
 665                 handles[0] = mb[1];
 666                 handles[1] = mb[2];
 667                 handles[2] = mb[3];
 668                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 669                 handle_cnt = 4;
 670                 mb[0] = MBA_SCSI_COMPLETION;
 671                 break;
 672         case MBA_CMPLT_5_16BIT:
 673                 handles[0] = mb[1];
 674                 handles[1] = mb[2];
 675                 handles[2] = mb[3];
 676                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 677                 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
 678                 handle_cnt = 5;
 679                 mb[0] = MBA_SCSI_COMPLETION;
 680                 break;
 681         case MBA_CMPLT_2_32BIT:
 682                 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
 683                 handles[1] = le32_to_cpu(
 684                     ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
 685                     RD_MAILBOX_REG(ha, reg, 6));
 686                 handle_cnt = 2;
 687                 mb[0] = MBA_SCSI_COMPLETION;
 688                 break;
 689         default:
 690                 break;
 691         }
 692 skip_rio:
 693         switch (mb[0]) {
 694         case MBA_SCSI_COMPLETION:       /* Fast Post */
 695                 if (!vha->flags.online)
 696                         break;
 697
 698                 for (cnt = 0; cnt < handle_cnt; cnt++)
 699                         qla2x00_process_completed_request(vha, rsp->req,
 700                                 handles[cnt]);
 701                 break;
 702
 703         case MBA_RESET:                 /* Reset */
 704                 ql_dbg(ql_dbg_async, vha, 0x5002,
 705                     "Asynchronous RESET.\n");
 706
 707                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 708                 break;
 709
 710         case MBA_SYSTEM_ERR:            /* System Error */
 711                 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ?
 712                         RD_REG_WORD(&reg24->mailbox7) : 0;
 713                 ql_log(ql_log_warn, vha, 0x5003,
 714                     "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
 715                     "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
 716
 717                 ha->isp_ops->fw_dump(vha, 1);
 718                 ha->flags.fw_init_done = 0;
 719                 QLA_FW_STOPPED(ha);
 720
 721                 if (IS_FWI2_CAPABLE(ha)) {
 722                         if (mb[1] == 0 && mb[2] == 0) {
 723                                 ql_log(ql_log_fatal, vha, 0x5004,
 724                                     "Unrecoverable Hardware Error: adapter "
 725                                     "marked OFFLINE!\n");
 726                                 vha->flags.online = 0;
 727                                 vha->device_flags |= DFLG_DEV_FAILED;
 728                         } else {
 729                                 /* Check to see if MPI timeout occurred */
 730                                 if ((mbx & MBX_3) && (ha->port_no == 0))
 731                                         set_bit(MPI_RESET_NEEDED,
 732                                             &vha->dpc_flags);
 733
 734                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 735                         }
 736                 } else if (mb[1] == 0) {
 737                         ql_log(ql_log_fatal, vha, 0x5005,
 738                             "Unrecoverable Hardware Error: adapter marked "
 739                             "OFFLINE!\n");
 740                         vha->flags.online = 0;
 741                         vha->device_flags |= DFLG_DEV_FAILED;
 742                 } else
 743                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 744                 break;
 745
 746         case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
 747                 ql_log(ql_log_warn, vha, 0x5006,
 748                     "ISP Request Transfer Error (%x).\n",  mb[1]);
 749
 750                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 751                 break;
 752
 753         case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
 754                 ql_log(ql_log_warn, vha, 0x5007,
 755                     "ISP Response Transfer Error (%x).\n", mb[1]);
 756
 757                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 758                 break;
 759
 760         case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
 761                 ql_dbg(ql_dbg_async, vha, 0x5008,
 762                     "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
 763                 break;
 764
 765         case MBA_LOOP_INIT_ERR:
 766                 ql_log(ql_log_warn, vha, 0x5090,
 767                     "LOOP INIT ERROR (%x).\n", mb[1]);
 768                 ha->isp_ops->fw_dump(vha, 1);
 769                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 770                 break;
 771
 772         case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
 773                 ha->flags.lip_ae = 1;
 774
 775                 ql_dbg(ql_dbg_async, vha, 0x5009,
 776                     "LIP occurred (%x).\n", mb[1]);
 777
 778                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 779                         atomic_set(&vha->loop_state, LOOP_DOWN);
 780                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 781                         qla2x00_mark_all_devices_lost(vha, 1);
 782                 }
 783
 784                 if (vha->vp_idx) {
 785                         atomic_set(&vha->vp_state, VP_FAILED);
 786                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 787                 }
 788
 789                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 790                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 791
 792                 vha->flags.management_server_logged_in = 0;
 793                 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
 794                 break;
 795
 796         case MBA_LOOP_UP:               /* Loop Up Event */
 797                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
 798                         ha->link_data_rate = PORT_SPEED_1GB;
 799                 else
 800                         ha->link_data_rate = mb[1];
 801
 802                 ql_log(ql_log_info, vha, 0x500a,
 803                     "LOOP UP detected (%s Gbps).\n",
 804                     qla2x00_get_link_speed_str(ha, ha->link_data_rate));
 805
 806                 vha->flags.management_server_logged_in = 0;
 807                 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
 808
 809                 if (AUTO_DETECT_SFP_SUPPORT(vha)) {
 810                         set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
 811                         qla2xxx_wake_dpc(vha);
 812                 }
 813                 break;
 814
 815         case MBA_LOOP_DOWN:             /* Loop Down Event */
 816                 SAVE_TOPO(ha);
 817                 ha->flags.lip_ae = 0;
 818                 ha->current_topology = 0;
 819
 820                 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
 821                         ? RD_REG_WORD(&reg24->mailbox4) : 0;
 822                 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(&reg82->mailbox_out[4])
 823                         : mbx;
 824                 ql_log(ql_log_info, vha, 0x500b,
 825                     "LOOP DOWN detected (%x %x %x %x).\n",
 826                     mb[1], mb[2], mb[3], mbx);
 827
 828                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 829                         atomic_set(&vha->loop_state, LOOP_DOWN);
 830                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 831                         /*
 832                          * In case of loop down, restore WWPN from
 833                          * NVRAM in case of FA-WWPN capable ISP
 834                          * Restore for Physical Port only
 835                          */
 836                         if (!vha->vp_idx) {
 837                                 if (ha->flags.fawwpn_enabled) {
 838                                         void *wwpn = ha->init_cb->port_name;
 839                                         memcpy(vha->port_name, wwpn, WWN_SIZE);
 840                                         fc_host_port_name(vha->host) =
 841                                             wwn_to_u64(vha->port_name);
 842                                         ql_dbg(ql_dbg_init + ql_dbg_verbose,
 843                                             vha, 0x00d8, "LOOP DOWN detected,"
 844                                             "restore WWPN %016llx\n",
 845                                             wwn_to_u64(vha->port_name));
 846                                 }
 847
 848                                 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
 849                         }
 850
 851                         vha->device_flags |= DFLG_NO_CABLE;
 852                         qla2x00_mark_all_devices_lost(vha, 1);
 853                 }
 854
 855                 if (vha->vp_idx) {
 856                         atomic_set(&vha->vp_state, VP_FAILED);
 857                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 858                 }
 859
 860                 vha->flags.management_server_logged_in = 0;
 861                 ha->link_data_rate = PORT_SPEED_UNKNOWN;
 862                 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
 863                 break;
 864
 865         case MBA_LIP_RESET:             /* LIP reset occurred */
 866                 ql_dbg(ql_dbg_async, vha, 0x500c,
 867                     "LIP reset occurred (%x).\n", mb[1]);
 868
 869                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 870                         atomic_set(&vha->loop_state, LOOP_DOWN);
 871                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 872                         qla2x00_mark_all_devices_lost(vha, 1);
 873                 }
 874
 875                 if (vha->vp_idx) {
 876                         atomic_set(&vha->vp_state, VP_FAILED);
 877                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 878                 }
 879
 880                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 881
 882                 ha->operating_mode = LOOP;
 883                 vha->flags.management_server_logged_in = 0;
 884                 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
 885                 break;
 886
 887         /* case MBA_DCBX_COMPLETE: */
 888         case MBA_POINT_TO_POINT:        /* Point-to-Point */
 889                 ha->flags.lip_ae = 0;
 890
 891                 if (IS_QLA2100(ha))
 892                         break;
 893
 894                 if (IS_CNA_CAPABLE(ha)) {
 895                         ql_dbg(ql_dbg_async, vha, 0x500d,
 896                             "DCBX Completed -- %04x %04x %04x.\n",
 897                             mb[1], mb[2], mb[3]);
 898                         if (ha->notify_dcbx_comp && !vha->vp_idx)
 899                                 complete(&ha->dcbx_comp);
 900
 901                 } else
 902                         ql_dbg(ql_dbg_async, vha, 0x500e,
 903                             "Asynchronous P2P MODE received.\n");
 904
 905                 /*
 906                  * Until there's a transition from loop down to loop up, treat
 907                  * this as loop down only.
 908                  */
 909                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 910                         atomic_set(&vha->loop_state, LOOP_DOWN);
 911                         if (!atomic_read(&vha->loop_down_timer))
 912                                 atomic_set(&vha->loop_down_timer,
 913                                     LOOP_DOWN_TIME);
 914                         if (!N2N_TOPO(ha))
 915                                 qla2x00_mark_all_devices_lost(vha, 1);
 916                 }
 917
 918                 if (vha->vp_idx) {
 919                         atomic_set(&vha->vp_state, VP_FAILED);
 920                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 921                 }
 922
 923                 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
 924                         set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 925
 926                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 927                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 928
 929                 vha->flags.management_server_logged_in = 0;
 930                 break;
 931
 932         case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
 933                 if (IS_QLA2100(ha))
 934                         break;
 935
 936                 ql_dbg(ql_dbg_async, vha, 0x500f,
 937                     "Configuration change detected: value=%x.\n", mb[1]);
 938
 939                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 940                         atomic_set(&vha->loop_state, LOOP_DOWN);
 941                         if (!atomic_read(&vha->loop_down_timer))
 942                                 atomic_set(&vha->loop_down_timer,
 943                                     LOOP_DOWN_TIME);
 944                         qla2x00_mark_all_devices_lost(vha, 1);
 945                 }
 946
 947                 if (vha->vp_idx) {
 948                         atomic_set(&vha->vp_state, VP_FAILED);
 949                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 950                 }
 951
 952                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 953                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 954                 break;
 955
 956         case MBA_PORT_UPDATE:           /* Port database update */
 957                 /*
 958                  * Handle only global and vn-port update events
 959                  *
 960                  * Relevant inputs:
 961                  * mb[1] = N_Port handle of changed port
 962                  * OR 0xffff for global event
 963                  * mb[2] = New login state
 964                  * 7 = Port logged out
 965                  * mb[3] = LSB is vp_idx, 0xff = all vps
 966                  *
 967                  * Skip processing if:
 968                  *       Event is global, vp_idx is NOT all vps,
 969                  *           vp_idx does not match
 970                  *       Event is not global, vp_idx does not match
 971                  */
 972                 if (IS_QLA2XXX_MIDTYPE(ha) &&
 973                     ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
 974                         (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
 975                         break;
 976
 977                 if (mb[2] == 0x7) {
 978                         ql_dbg(ql_dbg_async, vha, 0x5010,
 979                             "Port %s %04x %04x %04x.\n",
 980                             mb[1] == 0xffff ? "unavailable" : "logout",
 981                             mb[1], mb[2], mb[3]);
 982
 983                         if (mb[1] == 0xffff)
 984                                 goto global_port_update;
 985
 986                         if (mb[1] == NPH_SNS_LID(ha)) {
 987                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 988                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 989                                 break;
 990                         }
 991
 992                         /* use handle_cnt for loop id/nport handle */
 993                         if (IS_FWI2_CAPABLE(ha))
 994                                 handle_cnt = NPH_SNS;
 995                         else
 996                                 handle_cnt = SIMPLE_NAME_SERVER;
 997                         if (mb[1] == handle_cnt) {
 998                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 999                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1000                                 break;
1001                         }
1002
1003                         /* Port logout */
1004                         fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1005                         if (!fcport)
1006                                 break;
1007                         if (atomic_read(&fcport->state) != FCS_ONLINE)
1008                                 break;
1009                         ql_dbg(ql_dbg_async, vha, 0x508a,
1010                             "Marking port lost loopid=%04x portid=%06x.\n",
1011                             fcport->loop_id, fcport->d_id.b24);
1012                         if (qla_ini_mode_enabled(vha)) {
1013                                 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1014                                 fcport->logout_on_delete = 0;
1015                                 qlt_schedule_sess_for_deletion(fcport);
1016                         }
1017                         break;
1018
1019 global_port_update:
1020                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1021                                 atomic_set(&vha->loop_state, LOOP_DOWN);
1022                                 atomic_set(&vha->loop_down_timer,
1023                                     LOOP_DOWN_TIME);
1024                                 vha->device_flags |= DFLG_NO_CABLE;
1025                                 qla2x00_mark_all_devices_lost(vha, 1);
1026                         }
1027
1028                         if (vha->vp_idx) {
1029                                 atomic_set(&vha->vp_state, VP_FAILED);
1030                                 fc_vport_set_state(vha->fc_vport,
1031                                     FC_VPORT_FAILED);
1032                                 qla2x00_mark_all_devices_lost(vha, 1);
1033                         }
1034
1035                         vha->flags.management_server_logged_in = 0;
1036                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1037                         break;
1038                 }
1039
1040                 /*
1041                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1042                  * event etc. earlier indicating loop is down) then process
1043                  * it.  Otherwise ignore it and Wait for RSCN to come in.
1044                  */
1045                 atomic_set(&vha->loop_down_timer, 0);
1046                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1047                         !ha->flags.n2n_ae  &&
1048                     atomic_read(&vha->loop_state) != LOOP_DEAD) {
1049                         ql_dbg(ql_dbg_async, vha, 0x5011,
1050                             "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1051                             mb[1], mb[2], mb[3]);
1052                         break;
1053                 }
1054
1055                 ql_dbg(ql_dbg_async, vha, 0x5012,
1056                     "Port database changed %04x %04x %04x.\n",
1057                     mb[1], mb[2], mb[3]);
1058
1059                 /*
1060                  * Mark all devices as missing so we will login again.
1061                  */
1062                 atomic_set(&vha->loop_state, LOOP_UP);
1063                 vha->scan.scan_retry = 0;
1064
1065                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1066                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1067                 set_bit(VP_CONFIG_OK, &vha->vp_flags);
1068                 break;
1069
1070         case MBA_RSCN_UPDATE:           /* State Change Registration */
1071                 /* Check if the Vport has issued a SCR */
1072                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1073                         break;
1074                 /* Only handle SCNs for our Vport index. */
1075                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1076                         break;
1077
1078                 ql_dbg(ql_dbg_async, vha, 0x5013,
1079                     "RSCN database changed -- %04x %04x %04x.\n",
1080                     mb[1], mb[2], mb[3]);
1081
1082                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1083                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1084                                 | vha->d_id.b.al_pa;
1085                 if (rscn_entry == host_pid) {
1086                         ql_dbg(ql_dbg_async, vha, 0x5014,
1087                             "Ignoring RSCN update to local host "
1088                             "port ID (%06x).\n", host_pid);
1089                         break;
1090                 }
1091
1092                 /* Ignore reserved bits from RSCN-payload. */
1093                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1094
1095                 /* Skip RSCNs for virtual ports on the same physical port */
1096                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1097                         break;
1098
1099                 atomic_set(&vha->loop_down_timer, 0);
1100                 vha->flags.management_server_logged_in = 0;
1101                 {
1102                         struct event_arg ea;
1103
1104                         memset(&ea, 0, sizeof(ea));
1105                         ea.event = FCME_RSCN;
1106                         ea.id.b24 = rscn_entry;
1107                         ea.id.b.rsvd_1 = rscn_entry >> 24;
1108                         qla2x00_fcport_event_handler(vha, &ea);
1109                         qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1110                 }
1111                 break;
1112         /* case MBA_RIO_RESPONSE: */
1113         case MBA_ZIO_RESPONSE:
1114                 ql_dbg(ql_dbg_async, vha, 0x5015,
1115                     "[R|Z]IO update completion.\n");
1116
1117                 if (IS_FWI2_CAPABLE(ha))
1118                         qla24xx_process_response_queue(vha, rsp);
1119                 else
1120                         qla2x00_process_response_queue(rsp);
1121                 break;
1122
1123         case MBA_DISCARD_RND_FRAME:
1124                 ql_dbg(ql_dbg_async, vha, 0x5016,
1125                     "Discard RND Frame -- %04x %04x %04x.\n",
1126                     mb[1], mb[2], mb[3]);
1127                 break;
1128
1129         case MBA_TRACE_NOTIFICATION:
1130                 ql_dbg(ql_dbg_async, vha, 0x5017,
1131                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1132                 break;
1133
1134         case MBA_ISP84XX_ALERT:
1135                 ql_dbg(ql_dbg_async, vha, 0x5018,
1136                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1137                     mb[1], mb[2], mb[3]);
1138
1139                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1140                 switch (mb[1]) {
1141                 case A84_PANIC_RECOVERY:
1142                         ql_log(ql_log_info, vha, 0x5019,
1143                             "Alert 84XX: panic recovery %04x %04x.\n",
1144                             mb[2], mb[3]);
1145                         break;
1146                 case A84_OP_LOGIN_COMPLETE:
1147                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1148                         ql_log(ql_log_info, vha, 0x501a,
1149                             "Alert 84XX: firmware version %x.\n",
1150                             ha->cs84xx->op_fw_version);
1151                         break;
1152                 case A84_DIAG_LOGIN_COMPLETE:
1153                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1154                         ql_log(ql_log_info, vha, 0x501b,
1155                             "Alert 84XX: diagnostic firmware version %x.\n",
1156                             ha->cs84xx->diag_fw_version);
1157                         break;
1158                 case A84_GOLD_LOGIN_COMPLETE:
1159                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1160                         ha->cs84xx->fw_update = 1;
1161                         ql_log(ql_log_info, vha, 0x501c,
1162                             "Alert 84XX: gold firmware version %x.\n",
1163                             ha->cs84xx->gold_fw_version);
1164                         break;
1165                 default:
1166                         ql_log(ql_log_warn, vha, 0x501d,
1167                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1168                             mb[1], mb[2], mb[3]);
1169                 }
1170                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1171                 break;
1172         case MBA_DCBX_START:
1173                 ql_dbg(ql_dbg_async, vha, 0x501e,
1174                     "DCBX Started -- %04x %04x %04x.\n",
1175                     mb[1], mb[2], mb[3]);
1176                 break;
1177         case MBA_DCBX_PARAM_UPDATE:
1178                 ql_dbg(ql_dbg_async, vha, 0x501f,
1179                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1180                     mb[1], mb[2], mb[3]);
1181                 break;
1182         case MBA_FCF_CONF_ERR:
1183                 ql_dbg(ql_dbg_async, vha, 0x5020,
1184                     "FCF Configuration Error -- %04x %04x %04x.\n",
1185                     mb[1], mb[2], mb[3]);
1186                 break;
1187         case MBA_IDC_NOTIFY:
1188                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1189                         mb[4] = RD_REG_WORD(&reg24->mailbox4);
1190                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1191                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1192                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1193                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1194                                 /*
1195                                  * Extend loop down timer since port is active.
1196                                  */
1197                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1198                                         atomic_set(&vha->loop_down_timer,
1199                                             LOOP_DOWN_TIME);
1200                                 qla2xxx_wake_dpc(vha);
1201                         }
1202                 }
1203                 /* fall through */
1204         case MBA_IDC_COMPLETE:
1205                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1206                         complete(&ha->lb_portup_comp);
1207                 /* Fallthru */
1208         case MBA_IDC_TIME_EXT:
1209                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1210                     IS_QLA8044(ha))
1211                         qla81xx_idc_event(vha, mb[0], mb[1]);
1212                 break;
1213
1214         case MBA_IDC_AEN:
1215                 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1216                 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1217                 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1218                 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1219                 qla83xx_handle_8200_aen(vha, mb);
1220                 break;
1221
1222         case MBA_DPORT_DIAGNOSTICS:
1223                 ql_dbg(ql_dbg_async, vha, 0x5052,
1224                     "D-Port Diagnostics: %04x result=%s\n",
1225                     mb[0],
1226                     mb[1] == 0 ? "start" :
1227                     mb[1] == 1 ? "done (pass)" :
1228                     mb[1] == 2 ? "done (error)" : "other");
1229                 break;
1230
1231         case MBA_TEMPERATURE_ALERT:
1232                 ql_dbg(ql_dbg_async, vha, 0x505e,
1233                     "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1234                 if (mb[1] == 0x12)
1235                         schedule_work(&ha->board_disable);
1236                 break;
1237
1238         case MBA_TRANS_INSERT:
1239                 ql_dbg(ql_dbg_async, vha, 0x5091,
1240                     "Transceiver Insertion: %04x\n", mb[1]);
1241                 break;
1242
1243         default:
1244                 ql_dbg(ql_dbg_async, vha, 0x5057,
1245                     "Unknown AEN:%04x %04x %04x %04x\n",
1246                     mb[0], mb[1], mb[2], mb[3]);
1247         }
1248
1249         qlt_async_event(mb[0], vha, mb);
1250
1251         if (!vha->vp_idx && ha->num_vhosts)
1252                 qla2x00_alert_all_vps(rsp, mb);
1253 }
1254
1255 /**
1256  * qla2x00_process_completed_request() - Process a Fast Post response.
1257  * @vha: SCSI driver HA context
1258  * @req: request queue
1259  * @index: SRB index
1260  */
1261 void
1262 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1263                                   struct req_que *req, uint32_t index)
1264 {
1265         srb_t *sp;
1266         struct qla_hw_data *ha = vha->hw;
1267
1268         /* Validate handle. */
1269         if (index >= req->num_outstanding_cmds) {
1270                 ql_log(ql_log_warn, vha, 0x3014,
1271                     "Invalid SCSI command index (%x).\n", index);
1272
1273                 if (IS_P3P_TYPE(ha))
1274                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1275                 else
1276                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1277                 return;
1278         }
1279
1280         sp = req->outstanding_cmds[index];
1281         if (sp) {
1282                 /* Free outstanding command slot. */
1283                 req->outstanding_cmds[index] = NULL;
1284
1285                 /* Save ISP completion status */
1286                 sp->done(sp, DID_OK << 16);
1287         } else {
1288                 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1289
1290                 if (IS_P3P_TYPE(ha))
1291                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1292                 else
1293                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1294         }
1295 }
1296
1297 srb_t *
1298 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1299     struct req_que *req, void *iocb)
1300 {
1301         struct qla_hw_data *ha = vha->hw;
1302         sts_entry_t *pkt = iocb;
1303         srb_t *sp = NULL;
1304         uint16_t index;
1305
1306         index = LSW(pkt->handle);
1307         if (index >= req->num_outstanding_cmds) {
1308                 ql_log(ql_log_warn, vha, 0x5031,
1309                            "Invalid command index (%x) type %8ph.\n",
1310                            index, iocb);
1311                 if (IS_P3P_TYPE(ha))
1312                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1313                 else
1314                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1315                 goto done;
1316         }
1317         sp = req->outstanding_cmds[index];
1318         if (!sp) {
1319                 ql_log(ql_log_warn, vha, 0x5032,
1320                     "Invalid completion handle (%x) -- timed-out.\n", index);
1321                 return sp;
1322         }
1323         if (sp->handle != index) {
1324                 ql_log(ql_log_warn, vha, 0x5033,
1325                     "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1326                 return NULL;
1327         }
1328
1329         req->outstanding_cmds[index] = NULL;
1330
1331 done:
1332         return sp;
1333 }
1334
1335 static void
1336 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1337     struct mbx_entry *mbx)
1338 {
1339         const char func[] = "MBX-IOCB";
1340         const char *type;
1341         fc_port_t *fcport;
1342         srb_t *sp;
1343         struct srb_iocb *lio;
1344         uint16_t *data;
1345         uint16_t status;
1346
1347         sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1348         if (!sp)
1349                 return;
1350
1351         lio = &sp->u.iocb_cmd;
1352         type = sp->name;
1353         fcport = sp->fcport;
1354         data = lio->u.logio.data;
1355
1356         data[0] = MBS_COMMAND_ERROR;
1357         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1358             QLA_LOGIO_LOGIN_RETRIED : 0;
1359         if (mbx->entry_status) {
1360                 ql_dbg(ql_dbg_async, vha, 0x5043,
1361                     "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1362                     "entry-status=%x status=%x state-flag=%x "
1363                     "status-flags=%x.\n", type, sp->handle,
1364                     fcport->d_id.b.domain, fcport->d_id.b.area,
1365                     fcport->d_id.b.al_pa, mbx->entry_status,
1366                     le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1367                     le16_to_cpu(mbx->status_flags));
1368
1369                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1370                     (uint8_t *)mbx, sizeof(*mbx));
1371
1372                 goto logio_done;
1373         }
1374
1375         status = le16_to_cpu(mbx->status);
1376         if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1377             le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1378                 status = 0;
1379         if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1380                 ql_dbg(ql_dbg_async, vha, 0x5045,
1381                     "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1382                     type, sp->handle, fcport->d_id.b.domain,
1383                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1384                     le16_to_cpu(mbx->mb1));
1385
1386                 data[0] = MBS_COMMAND_COMPLETE;
1387                 if (sp->type == SRB_LOGIN_CMD) {
1388                         fcport->port_type = FCT_TARGET;
1389                         if (le16_to_cpu(mbx->mb1) & BIT_0)
1390                                 fcport->port_type = FCT_INITIATOR;
1391                         else if (le16_to_cpu(mbx->mb1) & BIT_1)
1392                                 fcport->flags |= FCF_FCP2_DEVICE;
1393                 }
1394                 goto logio_done;
1395         }
1396
1397         data[0] = le16_to_cpu(mbx->mb0);
1398         switch (data[0]) {
1399         case MBS_PORT_ID_USED:
1400                 data[1] = le16_to_cpu(mbx->mb1);
1401                 break;
1402         case MBS_LOOP_ID_USED:
1403                 break;
1404         default:
1405                 data[0] = MBS_COMMAND_ERROR;
1406                 break;
1407         }
1408
1409         ql_log(ql_log_warn, vha, 0x5046,
1410             "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1411             "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1412             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1413             status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1414             le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1415             le16_to_cpu(mbx->mb7));
1416
1417 logio_done:
1418         sp->done(sp, 0);
1419 }
1420
1421 static void
1422 qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1423     struct mbx_24xx_entry *pkt)
1424 {
1425         const char func[] = "MBX-IOCB2";
1426         srb_t *sp;
1427         struct srb_iocb *si;
1428         u16 sz, i;
1429         int res;
1430
1431         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1432         if (!sp)
1433                 return;
1434
1435         si = &sp->u.iocb_cmd;
1436         sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
1437
1438         for (i = 0; i < sz; i++)
1439                 si->u.mbx.in_mb[i] = le16_to_cpu(pkt->mb[i]);
1440
1441         res = (si->u.mbx.in_mb[0] & MBS_MASK);
1442
1443         sp->done(sp, res);
1444 }
1445
1446 static void
1447 qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1448     struct nack_to_isp *pkt)
1449 {
1450         const char func[] = "nack";
1451         srb_t *sp;
1452         int res = 0;
1453
1454         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1455         if (!sp)
1456                 return;
1457
1458         if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
1459                 res = QLA_FUNCTION_FAILED;
1460
1461         sp->done(sp, res);
1462 }
1463
1464 static void
1465 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1466     sts_entry_t *pkt, int iocb_type)
1467 {
1468         const char func[] = "CT_IOCB";
1469         const char *type;
1470         srb_t *sp;
1471         struct bsg_job *bsg_job;
1472         struct fc_bsg_reply *bsg_reply;
1473         uint16_t comp_status;
1474         int res = 0;
1475
1476         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1477         if (!sp)
1478                 return;
1479
1480         switch (sp->type) {
1481         case SRB_CT_CMD:
1482             bsg_job = sp->u.bsg_job;
1483             bsg_reply = bsg_job->reply;
1484
1485             type = "ct pass-through";
1486
1487             comp_status = le16_to_cpu(pkt->comp_status);
1488
1489             /*
1490              * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1491              * fc payload  to the caller
1492              */
1493             bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1494             bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1495
1496             if (comp_status != CS_COMPLETE) {
1497                     if (comp_status == CS_DATA_UNDERRUN) {
1498                             res = DID_OK << 16;
1499                             bsg_reply->reply_payload_rcv_len =
1500                                 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1501
1502                             ql_log(ql_log_warn, vha, 0x5048,
1503                                 "CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
1504                                 type, comp_status,
1505                                 bsg_reply->reply_payload_rcv_len);
1506                     } else {
1507                             ql_log(ql_log_warn, vha, 0x5049,
1508                                 "CT pass-through-%s error comp_status=0x%x.\n",
1509                                 type, comp_status);
1510                             res = DID_ERROR << 16;
1511                             bsg_reply->reply_payload_rcv_len = 0;
1512                     }
1513                     ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1514                         (uint8_t *)pkt, sizeof(*pkt));
1515             } else {
1516                     res = DID_OK << 16;
1517                     bsg_reply->reply_payload_rcv_len =
1518                         bsg_job->reply_payload.payload_len;
1519                     bsg_job->reply_len = 0;
1520             }
1521             break;
1522         case SRB_CT_PTHRU_CMD:
1523             /*
1524              * borrowing sts_entry_24xx.comp_status.
1525              * same location as ct_entry_24xx.comp_status
1526              */
1527              res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
1528                  (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1529                  sp->name);
1530              break;
1531         }
1532
1533         sp->done(sp, res);
1534 }
1535
1536 static void
1537 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1538     struct sts_entry_24xx *pkt, int iocb_type)
1539 {
1540         const char func[] = "ELS_CT_IOCB";
1541         const char *type;
1542         srb_t *sp;
1543         struct bsg_job *bsg_job;
1544         struct fc_bsg_reply *bsg_reply;
1545         uint16_t comp_status;
1546         uint32_t fw_status[3];
1547         int res;
1548         struct srb_iocb *els;
1549
1550         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1551         if (!sp)
1552                 return;
1553
1554         type = NULL;
1555         switch (sp->type) {
1556         case SRB_ELS_CMD_RPT:
1557         case SRB_ELS_CMD_HST:
1558                 type = "els";
1559                 break;
1560         case SRB_CT_CMD:
1561                 type = "ct pass-through";
1562                 break;
1563         case SRB_ELS_DCMD:
1564                 type = "Driver ELS logo";
1565                 if (iocb_type != ELS_IOCB_TYPE) {
1566                         ql_dbg(ql_dbg_user, vha, 0x5047,
1567                             "Completing %s: (%p) type=%d.\n",
1568                             type, sp, sp->type);
1569                         sp->done(sp, 0);
1570                         return;
1571                 }
1572                 break;
1573         case SRB_CT_PTHRU_CMD:
1574                 /* borrowing sts_entry_24xx.comp_status.
1575                    same location as ct_entry_24xx.comp_status
1576                  */
1577                 res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
1578                         (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1579                         sp->name);
1580                 sp->done(sp, res);
1581                 return;
1582         default:
1583                 ql_dbg(ql_dbg_user, vha, 0x503e,
1584                     "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1585                 return;
1586         }
1587
1588         comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1589         fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1590         fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1591
1592         if (iocb_type == ELS_IOCB_TYPE) {
1593                 els = &sp->u.iocb_cmd;
1594                 els->u.els_plogi.fw_status[0] = fw_status[0];
1595                 els->u.els_plogi.fw_status[1] = fw_status[1];
1596                 els->u.els_plogi.fw_status[2] = fw_status[2];
1597                 els->u.els_plogi.comp_status = fw_status[0];
1598                 if (comp_status == CS_COMPLETE) {
1599                         res =  DID_OK << 16;
1600                 } else {
1601                         if (comp_status == CS_DATA_UNDERRUN) {
1602                                 res =  DID_OK << 16;
1603                                 els->u.els_plogi.len =
1604                                 le16_to_cpu(((struct els_sts_entry_24xx *)
1605                                         pkt)->total_byte_count);
1606                         } else {
1607                                 els->u.els_plogi.len = 0;
1608                                 res = DID_ERROR << 16;
1609                         }
1610                 }
1611                 ql_log(ql_log_info, vha, 0x503f,
1612                     "ELS IOCB Done -%s error hdl=%x comp_status=0x%x error subcode 1=0x%x error subcode 2=0x%x total_byte=0x%x\n",
1613                     type, sp->handle, comp_status, fw_status[1], fw_status[2],
1614                     le16_to_cpu(((struct els_sts_entry_24xx *)
1615                         pkt)->total_byte_count));
1616                 goto els_ct_done;
1617         }
1618
1619         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1620          * fc payload  to the caller
1621          */
1622         bsg_job = sp->u.bsg_job;
1623         bsg_reply = bsg_job->reply;
1624         bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1625         bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1626
1627         if (comp_status != CS_COMPLETE) {
1628                 if (comp_status == CS_DATA_UNDERRUN) {
1629                         res = DID_OK << 16;
1630                         bsg_reply->reply_payload_rcv_len =
1631                             le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1632
1633                         ql_dbg(ql_dbg_user, vha, 0x503f,
1634                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1635                             "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1636                             type, sp->handle, comp_status, fw_status[1], fw_status[2],
1637                             le16_to_cpu(((struct els_sts_entry_24xx *)
1638                                 pkt)->total_byte_count));
1639                 } else {
1640                         ql_dbg(ql_dbg_user, vha, 0x5040,
1641                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1642                             "error subcode 1=0x%x error subcode 2=0x%x.\n",
1643                             type, sp->handle, comp_status,
1644                             le16_to_cpu(((struct els_sts_entry_24xx *)
1645                                 pkt)->error_subcode_1),
1646                             le16_to_cpu(((struct els_sts_entry_24xx *)
1647                                     pkt)->error_subcode_2));
1648                         res = DID_ERROR << 16;
1649                         bsg_reply->reply_payload_rcv_len = 0;
1650                 }
1651                 memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
1652                        fw_status, sizeof(fw_status));
1653                 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1654                                 (uint8_t *)pkt, sizeof(*pkt));
1655         }
1656         else {
1657                 res =  DID_OK << 16;
1658                 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1659                 bsg_job->reply_len = 0;
1660         }
1661 els_ct_done:
1662
1663         sp->done(sp, res);
1664 }
1665
1666 static void
1667 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1668     struct logio_entry_24xx *logio)
1669 {
1670         const char func[] = "LOGIO-IOCB";
1671         const char *type;
1672         fc_port_t *fcport;
1673         srb_t *sp;
1674         struct srb_iocb *lio;
1675         uint16_t *data;
1676         uint32_t iop[2];
1677
1678         sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1679         if (!sp)
1680                 return;
1681
1682         lio = &sp->u.iocb_cmd;
1683         type = sp->name;
1684         fcport = sp->fcport;
1685         data = lio->u.logio.data;
1686
1687         data[0] = MBS_COMMAND_ERROR;
1688         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1689                 QLA_LOGIO_LOGIN_RETRIED : 0;
1690         if (logio->entry_status) {
1691                 ql_log(ql_log_warn, fcport->vha, 0x5034,
1692                     "Async-%s error entry - %8phC hdl=%x"
1693                     "portid=%02x%02x%02x entry-status=%x.\n",
1694                     type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
1695                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1696                     logio->entry_status);
1697                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1698                     (uint8_t *)logio, sizeof(*logio));
1699
1700                 goto logio_done;
1701         }
1702
1703         if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1704                 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1705                     "Async-%s complete - %8phC hdl=%x portid=%02x%02x%02x "
1706                     "iop0=%x.\n", type, fcport->port_name, sp->handle,
1707                     fcport->d_id.b.domain,
1708                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1709                     le32_to_cpu(logio->io_parameter[0]));
1710
1711                 vha->hw->exch_starvation = 0;
1712                 data[0] = MBS_COMMAND_COMPLETE;
1713                 if (sp->type != SRB_LOGIN_CMD)
1714                         goto logio_done;
1715
1716                 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1717                 if (iop[0] & BIT_4) {
1718                         fcport->port_type = FCT_TARGET;
1719                         if (iop[0] & BIT_8)
1720                                 fcport->flags |= FCF_FCP2_DEVICE;
1721                 } else if (iop[0] & BIT_5)
1722                         fcport->port_type = FCT_INITIATOR;
1723
1724                 if (iop[0] & BIT_7)
1725                         fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1726
1727                 if (logio->io_parameter[7] || logio->io_parameter[8])
1728                         fcport->supported_classes |= FC_COS_CLASS2;
1729                 if (logio->io_parameter[9] || logio->io_parameter[10])
1730                         fcport->supported_classes |= FC_COS_CLASS3;
1731
1732                 goto logio_done;
1733         }
1734
1735         iop[0] = le32_to_cpu(logio->io_parameter[0]);
1736         iop[1] = le32_to_cpu(logio->io_parameter[1]);
1737         lio->u.logio.iop[0] = iop[0];
1738         lio->u.logio.iop[1] = iop[1];
1739         switch (iop[0]) {
1740         case LSC_SCODE_PORTID_USED:
1741                 data[0] = MBS_PORT_ID_USED;
1742                 data[1] = LSW(iop[1]);
1743                 break;
1744         case LSC_SCODE_NPORT_USED:
1745                 data[0] = MBS_LOOP_ID_USED;
1746                 break;
1747         case LSC_SCODE_CMD_FAILED:
1748                 if (iop[1] == 0x0606) {
1749                         /*
1750                          * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
1751                          * Target side acked.
1752                          */
1753                         data[0] = MBS_COMMAND_COMPLETE;
1754                         goto logio_done;
1755                 }
1756                 data[0] = MBS_COMMAND_ERROR;
1757                 break;
1758         case LSC_SCODE_NOXCB:
1759                 vha->hw->exch_starvation++;
1760                 if (vha->hw->exch_starvation > 5) {
1761                         ql_log(ql_log_warn, vha, 0xd046,
1762                             "Exchange starvation. Resetting RISC\n");
1763
1764                         vha->hw->exch_starvation = 0;
1765
1766                         if (IS_P3P_TYPE(vha->hw))
1767                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1768                         else
1769                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1770                         qla2xxx_wake_dpc(vha);
1771                 }
1772                 /* fall through */
1773         default:
1774                 data[0] = MBS_COMMAND_ERROR;
1775                 break;
1776         }
1777
1778         ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1779             "Async-%s failed - %8phC hdl=%x portid=%02x%02x%02x comp=%x "
1780             "iop0=%x iop1=%x.\n", type, fcport->port_name,
1781                 sp->handle, fcport->d_id.b.domain,
1782             fcport->d_id.b.area, fcport->d_id.b.al_pa,
1783             le16_to_cpu(logio->comp_status),
1784             le32_to_cpu(logio->io_parameter[0]),
1785             le32_to_cpu(logio->io_parameter[1]));
1786
1787 logio_done:
1788         sp->done(sp, 0);
1789 }
1790
1791 static void
1792 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
1793 {
1794         const char func[] = "TMF-IOCB";
1795         const char *type;
1796         fc_port_t *fcport;
1797         srb_t *sp;
1798         struct srb_iocb *iocb;
1799         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1800
1801         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1802         if (!sp)
1803                 return;
1804
1805         iocb = &sp->u.iocb_cmd;
1806         type = sp->name;
1807         fcport = sp->fcport;
1808         iocb->u.tmf.data = QLA_SUCCESS;
1809
1810         if (sts->entry_status) {
1811                 ql_log(ql_log_warn, fcport->vha, 0x5038,
1812                     "Async-%s error - hdl=%x entry-status(%x).\n",
1813                     type, sp->handle, sts->entry_status);
1814                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1815         } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
1816                 ql_log(ql_log_warn, fcport->vha, 0x5039,
1817                     "Async-%s error - hdl=%x completion status(%x).\n",
1818                     type, sp->handle, sts->comp_status);
1819                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1820         } else if ((le16_to_cpu(sts->scsi_status) &
1821             SS_RESPONSE_INFO_LEN_VALID)) {
1822                 host_to_fcp_swap(sts->data, sizeof(sts->data));
1823                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1824                         ql_log(ql_log_warn, fcport->vha, 0x503b,
1825                             "Async-%s error - hdl=%x not enough response(%d).\n",
1826                             type, sp->handle, sts->rsp_data_len);
1827                 } else if (sts->data[3]) {
1828                         ql_log(ql_log_warn, fcport->vha, 0x503c,
1829                             "Async-%s error - hdl=%x response(%x).\n",
1830                             type, sp->handle, sts->data[3]);
1831                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1832                 }
1833         }
1834
1835         if (iocb->u.tmf.data != QLA_SUCCESS)
1836                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1837                     (uint8_t *)sts, sizeof(*sts));
1838
1839         sp->done(sp, 0);
1840 }
1841
1842 static void qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1843     void *tsk, srb_t *sp)
1844 {
1845         fc_port_t *fcport;
1846         struct srb_iocb *iocb;
1847         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1848         uint16_t        state_flags;
1849         struct nvmefc_fcp_req *fd;
1850         uint16_t        ret = 0;
1851
1852         iocb = &sp->u.iocb_cmd;
1853         fcport = sp->fcport;
1854         iocb->u.nvme.comp_status = le16_to_cpu(sts->comp_status);
1855         state_flags  = le16_to_cpu(sts->state_flags);
1856         fd = iocb->u.nvme.desc;
1857
1858         if (unlikely(iocb->u.nvme.aen_op))
1859                 atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
1860
1861         /*
1862          * State flags: Bit 6 and 0.
1863          * If 0 is set, we don't care about 6.
1864          * both cases resp was dma'd to host buffer
1865          * if both are 0, that is good path case.
1866          * if six is set and 0 is clear, we need to
1867          * copy resp data from status iocb to resp buffer.
1868          */
1869         if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
1870                 iocb->u.nvme.rsp_pyld_len = 0;
1871         } else if ((state_flags & SF_FCP_RSP_DMA)) {
1872                 iocb->u.nvme.rsp_pyld_len = le16_to_cpu(sts->nvme_rsp_pyld_len);
1873         } else if (state_flags & SF_NVME_ERSP) {
1874                 uint32_t *inbuf, *outbuf;
1875                 uint16_t iter;
1876
1877                 inbuf = (uint32_t *)&sts->nvme_ersp_data;
1878                 outbuf = (uint32_t *)fd->rspaddr;
1879                 iocb->u.nvme.rsp_pyld_len = le16_to_cpu(sts->nvme_rsp_pyld_len);
1880                 if (unlikely(iocb->u.nvme.rsp_pyld_len >
1881                     sizeof(struct nvme_fc_ersp_iu))) {
1882                         if (ql_mask_match(ql_dbg_io)) {
1883                                 WARN_ONCE(1, "Unexpected response payload length %u.\n",
1884                                     iocb->u.nvme.rsp_pyld_len);
1885                                 ql_log(ql_log_warn, fcport->vha, 0x5100,
1886                                     "Unexpected response payload length %u.\n",
1887                                     iocb->u.nvme.rsp_pyld_len);
1888                         }
1889                         iocb->u.nvme.rsp_pyld_len =
1890                             sizeof(struct nvme_fc_ersp_iu);
1891                 }
1892                 iter = iocb->u.nvme.rsp_pyld_len >> 2;
1893                 for (; iter; iter--)
1894                         *outbuf++ = swab32(*inbuf++);
1895         } else { /* unhandled case */
1896             ql_log(ql_log_warn, fcport->vha, 0x503a,
1897                 "NVME-%s error. Unhandled state_flags of %x\n",
1898                 sp->name, state_flags);
1899         }
1900
1901         fd->transferred_length = fd->payload_length -
1902             le32_to_cpu(sts->residual_len);
1903
1904         switch (le16_to_cpu(sts->comp_status)) {
1905         case CS_COMPLETE:
1906                 ret = QLA_SUCCESS;
1907                 break;
1908         case CS_ABORTED:
1909         case CS_RESET:
1910         case CS_PORT_UNAVAILABLE:
1911         case CS_PORT_LOGGED_OUT:
1912         case CS_PORT_BUSY:
1913                 ql_log(ql_log_warn, fcport->vha, 0x5060,
1914                     "NVME-%s ERR Handling - hdl=%x completion status(%x) resid=%x  ox_id=%x\n",
1915                     sp->name, sp->handle, sts->comp_status,
1916                     le32_to_cpu(sts->residual_len), sts->ox_id);
1917                 fd->transferred_length = 0;
1918                 iocb->u.nvme.rsp_pyld_len = 0;
1919                 ret = QLA_ABORTED;
1920                 break;
1921         default:
1922                 ql_log(ql_log_warn, fcport->vha, 0x5060,
1923                     "NVME-%s error - hdl=%x completion status(%x) resid=%x  ox_id=%x\n",
1924                     sp->name, sp->handle, sts->comp_status,
1925                     le32_to_cpu(sts->residual_len), sts->ox_id);
1926                 ret = QLA_FUNCTION_FAILED;
1927                 break;
1928         }
1929         sp->done(sp, ret);
1930 }
1931
1932 static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
1933     struct vp_ctrl_entry_24xx *vce)
1934 {
1935         const char func[] = "CTRLVP-IOCB";
1936         srb_t *sp;
1937         int rval = QLA_SUCCESS;
1938
1939         sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
1940         if (!sp)
1941                 return;
1942
1943         if (vce->entry_status != 0) {
1944                 ql_dbg(ql_dbg_vport, vha, 0x10c4,
1945                     "%s: Failed to complete IOCB -- error status (%x)\n",
1946                     sp->name, vce->entry_status);
1947                 rval = QLA_FUNCTION_FAILED;
1948         } else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
1949                 ql_dbg(ql_dbg_vport, vha, 0x10c5,
1950                     "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
1951                     sp->name, le16_to_cpu(vce->comp_status),
1952                     le16_to_cpu(vce->vp_idx_failed));
1953                 rval = QLA_FUNCTION_FAILED;
1954         } else {
1955                 ql_dbg(ql_dbg_vport, vha, 0x10c6,
1956                     "Done %s.\n", __func__);
1957         }
1958
1959         sp->rc = rval;
1960         sp->done(sp, rval);
1961 }
1962
1963 /**
1964  * qla2x00_process_response_queue() - Process response queue entries.
1965  * @rsp: response queue
1966  */
1967 void
1968 qla2x00_process_response_queue(struct rsp_que *rsp)
1969 {
1970         struct scsi_qla_host *vha;
1971         struct qla_hw_data *ha = rsp->hw;
1972         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1973         sts_entry_t     *pkt;
1974         uint16_t        handle_cnt;
1975         uint16_t        cnt;
1976
1977         vha = pci_get_drvdata(ha->pdev);
1978
1979         if (!vha->flags.online)
1980                 return;
1981
1982         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1983                 pkt = (sts_entry_t *)rsp->ring_ptr;
1984
1985                 rsp->ring_index++;
1986                 if (rsp->ring_index == rsp->length) {
1987                         rsp->ring_index = 0;
1988                         rsp->ring_ptr = rsp->ring;
1989                 } else {
1990                         rsp->ring_ptr++;
1991                 }
1992
1993                 if (pkt->entry_status != 0) {
1994                         qla2x00_error_entry(vha, rsp, pkt);
1995                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1996                         wmb();
1997                         continue;
1998                 }
1999
2000                 switch (pkt->entry_type) {
2001                 case STATUS_TYPE:
2002                         qla2x00_status_entry(vha, rsp, pkt);
2003                         break;
2004                 case STATUS_TYPE_21:
2005                         handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
2006                         for (cnt = 0; cnt < handle_cnt; cnt++) {
2007                                 qla2x00_process_completed_request(vha, rsp->req,
2008                                     ((sts21_entry_t *)pkt)->handle[cnt]);
2009                         }
2010                         break;
2011                 case STATUS_TYPE_22:
2012                         handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
2013                         for (cnt = 0; cnt < handle_cnt; cnt++) {
2014                                 qla2x00_process_completed_request(vha, rsp->req,
2015                                     ((sts22_entry_t *)pkt)->handle[cnt]);
2016                         }
2017                         break;
2018                 case STATUS_CONT_TYPE:
2019                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2020                         break;
2021                 case MBX_IOCB_TYPE:
2022                         qla2x00_mbx_iocb_entry(vha, rsp->req,
2023                             (struct mbx_entry *)pkt);
2024                         break;
2025                 case CT_IOCB_TYPE:
2026                         qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2027                         break;
2028                 default:
2029                         /* Type Not Supported. */
2030                         ql_log(ql_log_warn, vha, 0x504a,
2031                             "Received unknown response pkt type %x "
2032                             "entry status=%x.\n",
2033                             pkt->entry_type, pkt->entry_status);
2034                         break;
2035                 }
2036                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2037                 wmb();
2038         }
2039
2040         /* Adjust ring index */
2041         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
2042 }
2043
2044 static inline void
2045 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2046                      uint32_t sense_len, struct rsp_que *rsp, int res)
2047 {
2048         struct scsi_qla_host *vha = sp->vha;
2049         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2050         uint32_t track_sense_len;
2051
2052         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2053                 sense_len = SCSI_SENSE_BUFFERSIZE;
2054
2055         SET_CMD_SENSE_LEN(sp, sense_len);
2056         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2057         track_sense_len = sense_len;
2058
2059         if (sense_len > par_sense_len)
2060                 sense_len = par_sense_len;
2061
2062         memcpy(cp->sense_buffer, sense_data, sense_len);
2063
2064         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2065         track_sense_len -= sense_len;
2066         SET_CMD_SENSE_LEN(sp, track_sense_len);
2067
2068         if (track_sense_len != 0) {
2069                 rsp->status_srb = sp;
2070                 cp->result = res;
2071         }
2072
2073         if (sense_len) {
2074                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
2075                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2076                     sp->vha->host_no, cp->device->id, cp->device->lun,
2077                     cp);
2078                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
2079                     cp->sense_buffer, sense_len);
2080         }
2081 }
2082
2083 struct scsi_dif_tuple {
2084         __be16 guard;       /* Checksum */
2085         __be16 app_tag;         /* APPL identifier */
2086         __be32 ref_tag;         /* Target LBA or indirect LBA */
2087 };
2088
2089 /*
2090  * Checks the guard or meta-data for the type of error
2091  * detected by the HBA. In case of errors, we set the
2092  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
2093  * to indicate to the kernel that the HBA detected error.
2094  */
2095 static inline int
2096 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
2097 {
2098         struct scsi_qla_host *vha = sp->vha;
2099         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2100         uint8_t         *ap = &sts24->data[12];
2101         uint8_t         *ep = &sts24->data[20];
2102         uint32_t        e_ref_tag, a_ref_tag;
2103         uint16_t        e_app_tag, a_app_tag;
2104         uint16_t        e_guard, a_guard;
2105
2106         /*
2107          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
2108          * would make guard field appear at offset 2
2109          */
2110         a_guard   = le16_to_cpu(*(uint16_t *)(ap + 2));
2111         a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
2112         a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
2113         e_guard   = le16_to_cpu(*(uint16_t *)(ep + 2));
2114         e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
2115         e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
2116
2117         ql_dbg(ql_dbg_io, vha, 0x3023,
2118             "iocb(s) %p Returned STATUS.\n", sts24);
2119
2120         ql_dbg(ql_dbg_io, vha, 0x3024,
2121             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
2122             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
2123             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
2124             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
2125             a_app_tag, e_app_tag, a_guard, e_guard);
2126
2127         /*
2128          * Ignore sector if:
2129          * For type     3: ref & app tag is all 'f's
2130          * For type 0,1,2: app tag is all 'f's
2131          */
2132         if ((a_app_tag == T10_PI_APP_ESCAPE) &&
2133             ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
2134              (a_ref_tag == T10_PI_REF_ESCAPE))) {
2135                 uint32_t blocks_done, resid;
2136                 sector_t lba_s = scsi_get_lba(cmd);
2137
2138                 /* 2TB boundary case covered automatically with this */
2139                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
2140
2141                 resid = scsi_bufflen(cmd) - (blocks_done *
2142                     cmd->device->sector_size);
2143
2144                 scsi_set_resid(cmd, resid);
2145                 cmd->result = DID_OK << 16;
2146
2147                 /* Update protection tag */
2148                 if (scsi_prot_sg_count(cmd)) {
2149                         uint32_t i, j = 0, k = 0, num_ent;
2150                         struct scatterlist *sg;
2151                         struct t10_pi_tuple *spt;
2152
2153                         /* Patch the corresponding protection tags */
2154                         scsi_for_each_prot_sg(cmd, sg,
2155                             scsi_prot_sg_count(cmd), i) {
2156                                 num_ent = sg_dma_len(sg) / 8;
2157                                 if (k + num_ent < blocks_done) {
2158                                         k += num_ent;
2159                                         continue;
2160                                 }
2161                                 j = blocks_done - k - 1;
2162                                 k = blocks_done;
2163                                 break;
2164                         }
2165
2166                         if (k != blocks_done) {
2167                                 ql_log(ql_log_warn, vha, 0x302f,
2168                                     "unexpected tag values tag:lba=%x:%llx)\n",
2169                                     e_ref_tag, (unsigned long long)lba_s);
2170                                 return 1;
2171                         }
2172
2173                         spt = page_address(sg_page(sg)) + sg->offset;
2174                         spt += j;
2175
2176                         spt->app_tag = T10_PI_APP_ESCAPE;
2177                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
2178                                 spt->ref_tag = T10_PI_REF_ESCAPE;
2179                 }
2180
2181                 return 0;
2182         }
2183
2184         /* check guard */
2185         if (e_guard != a_guard) {
2186                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2187                     0x10, 0x1);
2188                 set_driver_byte(cmd, DRIVER_SENSE);
2189                 set_host_byte(cmd, DID_ABORT);
2190                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2191                 return 1;
2192         }
2193
2194         /* check ref tag */
2195         if (e_ref_tag != a_ref_tag) {
2196                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2197                     0x10, 0x3);
2198                 set_driver_byte(cmd, DRIVER_SENSE);
2199                 set_host_byte(cmd, DID_ABORT);
2200                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2201                 return 1;
2202         }
2203
2204         /* check appl tag */
2205         if (e_app_tag != a_app_tag) {
2206                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2207                     0x10, 0x2);
2208                 set_driver_byte(cmd, DRIVER_SENSE);
2209                 set_host_byte(cmd, DID_ABORT);
2210                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2211                 return 1;
2212         }
2213
2214         return 1;
2215 }
2216
2217 static void
2218 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2219                                   struct req_que *req, uint32_t index)
2220 {
2221         struct qla_hw_data *ha = vha->hw;
2222         srb_t *sp;
2223         uint16_t        comp_status;
2224         uint16_t        scsi_status;
2225         uint16_t thread_id;
2226         uint32_t rval = EXT_STATUS_OK;
2227         struct bsg_job *bsg_job = NULL;
2228         struct fc_bsg_request *bsg_request;
2229         struct fc_bsg_reply *bsg_reply;
2230         sts_entry_t *sts;
2231         struct sts_entry_24xx *sts24;
2232         sts = (sts_entry_t *) pkt;
2233         sts24 = (struct sts_entry_24xx *) pkt;
2234
2235         /* Validate handle. */
2236         if (index >= req->num_outstanding_cmds) {
2237                 ql_log(ql_log_warn, vha, 0x70af,
2238                     "Invalid SCSI completion handle 0x%x.\n", index);
2239                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2240                 return;
2241         }
2242
2243         sp = req->outstanding_cmds[index];
2244         if (!sp) {
2245                 ql_log(ql_log_warn, vha, 0x70b0,
2246                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
2247                     req->id, index);
2248
2249                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2250                 return;
2251         }
2252
2253         /* Free outstanding command slot. */
2254         req->outstanding_cmds[index] = NULL;
2255         bsg_job = sp->u.bsg_job;
2256         bsg_request = bsg_job->request;
2257         bsg_reply = bsg_job->reply;
2258
2259         if (IS_FWI2_CAPABLE(ha)) {
2260                 comp_status = le16_to_cpu(sts24->comp_status);
2261                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2262         } else {
2263                 comp_status = le16_to_cpu(sts->comp_status);
2264                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2265         }
2266
2267         thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
2268         switch (comp_status) {
2269         case CS_COMPLETE:
2270                 if (scsi_status == 0) {
2271                         bsg_reply->reply_payload_rcv_len =
2272                                         bsg_job->reply_payload.payload_len;
2273                         vha->qla_stats.input_bytes +=
2274                                 bsg_reply->reply_payload_rcv_len;
2275                         vha->qla_stats.input_requests++;
2276                         rval = EXT_STATUS_OK;
2277                 }
2278                 goto done;
2279
2280         case CS_DATA_OVERRUN:
2281                 ql_dbg(ql_dbg_user, vha, 0x70b1,
2282                     "Command completed with data overrun thread_id=%d\n",
2283                     thread_id);
2284                 rval = EXT_STATUS_DATA_OVERRUN;
2285                 break;
2286
2287         case CS_DATA_UNDERRUN:
2288                 ql_dbg(ql_dbg_user, vha, 0x70b2,
2289                     "Command completed with data underrun thread_id=%d\n",
2290                     thread_id);
2291                 rval = EXT_STATUS_DATA_UNDERRUN;
2292                 break;
2293         case CS_BIDIR_RD_OVERRUN:
2294                 ql_dbg(ql_dbg_user, vha, 0x70b3,
2295                     "Command completed with read data overrun thread_id=%d\n",
2296                     thread_id);
2297                 rval = EXT_STATUS_DATA_OVERRUN;
2298                 break;
2299
2300         case CS_BIDIR_RD_WR_OVERRUN:
2301                 ql_dbg(ql_dbg_user, vha, 0x70b4,
2302                     "Command completed with read and write data overrun "
2303                     "thread_id=%d\n", thread_id);
2304                 rval = EXT_STATUS_DATA_OVERRUN;
2305                 break;
2306
2307         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
2308                 ql_dbg(ql_dbg_user, vha, 0x70b5,
2309                     "Command completed with read data over and write data "
2310                     "underrun thread_id=%d\n", thread_id);
2311                 rval = EXT_STATUS_DATA_OVERRUN;
2312                 break;
2313
2314         case CS_BIDIR_RD_UNDERRUN:
2315                 ql_dbg(ql_dbg_user, vha, 0x70b6,
2316                     "Command completed with read data underrun "
2317                     "thread_id=%d\n", thread_id);
2318                 rval = EXT_STATUS_DATA_UNDERRUN;
2319                 break;
2320
2321         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
2322                 ql_dbg(ql_dbg_user, vha, 0x70b7,
2323                     "Command completed with read data under and write data "
2324                     "overrun thread_id=%d\n", thread_id);
2325                 rval = EXT_STATUS_DATA_UNDERRUN;
2326                 break;
2327
2328         case CS_BIDIR_RD_WR_UNDERRUN:
2329                 ql_dbg(ql_dbg_user, vha, 0x70b8,
2330                     "Command completed with read and write data underrun "
2331                     "thread_id=%d\n", thread_id);
2332                 rval = EXT_STATUS_DATA_UNDERRUN;
2333                 break;
2334
2335         case CS_BIDIR_DMA:
2336                 ql_dbg(ql_dbg_user, vha, 0x70b9,
2337                     "Command completed with data DMA error thread_id=%d\n",
2338                     thread_id);
2339                 rval = EXT_STATUS_DMA_ERR;
2340                 break;
2341
2342         case CS_TIMEOUT:
2343                 ql_dbg(ql_dbg_user, vha, 0x70ba,
2344                     "Command completed with timeout thread_id=%d\n",
2345                     thread_id);
2346                 rval = EXT_STATUS_TIMEOUT;
2347                 break;
2348         default:
2349                 ql_dbg(ql_dbg_user, vha, 0x70bb,
2350                     "Command completed with completion status=0x%x "
2351                     "thread_id=%d\n", comp_status, thread_id);
2352                 rval = EXT_STATUS_ERR;
2353                 break;
2354         }
2355         bsg_reply->reply_payload_rcv_len = 0;
2356
2357 done:
2358         /* Return the vendor specific reply to API */
2359         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2360         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2361         /* Always return DID_OK, bsg will send the vendor specific response
2362          * in this case only */
2363         sp->done(sp, DID_OK << 16);
2364
2365 }
2366
2367 /**
2368  * qla2x00_status_entry() - Process a Status IOCB entry.
2369  * @vha: SCSI driver HA context
2370  * @rsp: response queue
2371  * @pkt: Entry pointer
2372  */
2373 static void
2374 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2375 {
2376         srb_t           *sp;
2377         fc_port_t       *fcport;
2378         struct scsi_cmnd *cp;
2379         sts_entry_t *sts;
2380         struct sts_entry_24xx *sts24;
2381         uint16_t        comp_status;
2382         uint16_t        scsi_status;
2383         uint16_t        ox_id;
2384         uint8_t         lscsi_status;
2385         int32_t         resid;
2386         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2387             fw_resid_len;
2388         uint8_t         *rsp_info, *sense_data;
2389         struct qla_hw_data *ha = vha->hw;
2390         uint32_t handle;
2391         uint16_t que;
2392         struct req_que *req;
2393         int logit = 1;
2394         int res = 0;
2395         uint16_t state_flags = 0;
2396         uint16_t retry_delay = 0;
2397
2398         sts = (sts_entry_t *) pkt;
2399         sts24 = (struct sts_entry_24xx *) pkt;
2400         if (IS_FWI2_CAPABLE(ha)) {
2401                 comp_status = le16_to_cpu(sts24->comp_status);
2402                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2403                 state_flags = le16_to_cpu(sts24->state_flags);
2404         } else {
2405                 comp_status = le16_to_cpu(sts->comp_status);
2406                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2407         }
2408         handle = (uint32_t) LSW(sts->handle);
2409         que = MSW(sts->handle);
2410         req = ha->req_q_map[que];
2411
2412         /* Check for invalid queue pointer */
2413         if (req == NULL ||
2414             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2415                 ql_dbg(ql_dbg_io, vha, 0x3059,
2416                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2417                     "que=%u.\n", sts->handle, req, que);
2418                 return;
2419         }
2420
2421         /* Validate handle. */
2422         if (handle < req->num_outstanding_cmds) {
2423                 sp = req->outstanding_cmds[handle];
2424                 if (!sp) {
2425                         ql_dbg(ql_dbg_io, vha, 0x3075,
2426                             "%s(%ld): Already returned command for status handle (0x%x).\n",
2427                             __func__, vha->host_no, sts->handle);
2428                         return;
2429                 }
2430         } else {
2431                 ql_dbg(ql_dbg_io, vha, 0x3017,
2432                     "Invalid status handle, out of range (0x%x).\n",
2433                     sts->handle);
2434
2435                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2436                         if (IS_P3P_TYPE(ha))
2437                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2438                         else
2439                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2440                         qla2xxx_wake_dpc(vha);
2441                 }
2442                 return;
2443         }
2444
2445         if (sp->cmd_type != TYPE_SRB) {
2446                 req->outstanding_cmds[handle] = NULL;
2447                 ql_dbg(ql_dbg_io, vha, 0x3015,
2448                     "Unknown sp->cmd_type %x %p).\n",
2449                     sp->cmd_type, sp);
2450                 return;
2451         }
2452
2453         /* NVME completion. */
2454         if (sp->type == SRB_NVME_CMD) {
2455                 req->outstanding_cmds[handle] = NULL;
2456                 qla24xx_nvme_iocb_entry(vha, req, pkt, sp);
2457                 return;
2458         }
2459
2460         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2461                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2462                 return;
2463         }
2464
2465         /* Task Management completion. */
2466         if (sp->type == SRB_TM_CMD) {
2467                 qla24xx_tm_iocb_entry(vha, req, pkt);
2468                 return;
2469         }
2470
2471         /* Fast path completion. */
2472         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2473                 qla2x00_process_completed_request(vha, req, handle);
2474
2475                 return;
2476         }
2477
2478         req->outstanding_cmds[handle] = NULL;
2479         cp = GET_CMD_SP(sp);
2480         if (cp == NULL) {
2481                 ql_dbg(ql_dbg_io, vha, 0x3018,
2482                     "Command already returned (0x%x/%p).\n",
2483                     sts->handle, sp);
2484
2485                 return;
2486         }
2487
2488         lscsi_status = scsi_status & STATUS_MASK;
2489
2490         fcport = sp->fcport;
2491
2492         ox_id = 0;
2493         sense_len = par_sense_len = rsp_info_len = resid_len =
2494             fw_resid_len = 0;
2495         if (IS_FWI2_CAPABLE(ha)) {
2496                 if (scsi_status & SS_SENSE_LEN_VALID)
2497                         sense_len = le32_to_cpu(sts24->sense_len);
2498                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2499                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2500                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2501                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
2502                 if (comp_status == CS_DATA_UNDERRUN)
2503                         fw_resid_len = le32_to_cpu(sts24->residual_len);
2504                 rsp_info = sts24->data;
2505                 sense_data = sts24->data;
2506                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2507                 ox_id = le16_to_cpu(sts24->ox_id);
2508                 par_sense_len = sizeof(sts24->data);
2509                 /* Valid values of the retry delay timer are 0x1-0xffef */
2510                 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1) {
2511                         retry_delay = sts24->retry_delay & 0x3fff;
2512                         ql_dbg(ql_dbg_io, sp->vha, 0x3033,
2513                             "%s: scope=%#x retry_delay=%#x\n", __func__,
2514                             sts24->retry_delay >> 14, retry_delay);
2515                 }
2516         } else {
2517                 if (scsi_status & SS_SENSE_LEN_VALID)
2518                         sense_len = le16_to_cpu(sts->req_sense_length);
2519                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2520                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2521                 resid_len = le32_to_cpu(sts->residual_length);
2522                 rsp_info = sts->rsp_info;
2523                 sense_data = sts->req_sense_data;
2524                 par_sense_len = sizeof(sts->req_sense_data);
2525         }
2526
2527         /* Check for any FCP transport errors. */
2528         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2529                 /* Sense data lies beyond any FCP RESPONSE data. */
2530                 if (IS_FWI2_CAPABLE(ha)) {
2531                         sense_data += rsp_info_len;
2532                         par_sense_len -= rsp_info_len;
2533                 }
2534                 if (rsp_info_len > 3 && rsp_info[3]) {
2535                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2536                             "FCP I/O protocol failure (0x%x/0x%x).\n",
2537                             rsp_info_len, rsp_info[3]);
2538
2539                         res = DID_BUS_BUSY << 16;
2540                         goto out;
2541                 }
2542         }
2543
2544         /* Check for overrun. */
2545         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2546             scsi_status & SS_RESIDUAL_OVER)
2547                 comp_status = CS_DATA_OVERRUN;
2548
2549         /*
2550          * Check retry_delay_timer value if we receive a busy or
2551          * queue full.
2552          */
2553         if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2554             lscsi_status == SAM_STAT_BUSY)
2555                 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2556
2557         /*
2558          * Based on Host and scsi status generate status code for Linux
2559          */
2560         switch (comp_status) {
2561         case CS_COMPLETE:
2562         case CS_QUEUE_FULL:
2563                 if (scsi_status == 0) {
2564                         res = DID_OK << 16;
2565                         break;
2566                 }
2567                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2568                         resid = resid_len;
2569                         scsi_set_resid(cp, resid);
2570
2571                         if (!lscsi_status &&
2572                             ((unsigned)(scsi_bufflen(cp) - resid) <
2573                              cp->underflow)) {
2574                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2575                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
2576                                     resid, scsi_bufflen(cp));
2577
2578                                 res = DID_ERROR << 16;
2579                                 break;
2580                         }
2581                 }
2582                 res = DID_OK << 16 | lscsi_status;
2583
2584                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2585                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2586                             "QUEUE FULL detected.\n");
2587                         break;
2588                 }
2589                 logit = 0;
2590                 if (lscsi_status != SS_CHECK_CONDITION)
2591                         break;
2592
2593                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2594                 if (!(scsi_status & SS_SENSE_LEN_VALID))
2595                         break;
2596
2597                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2598                     rsp, res);
2599                 break;
2600
2601         case CS_DATA_UNDERRUN:
2602                 /* Use F/W calculated residual length. */
2603                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2604                 scsi_set_resid(cp, resid);
2605                 if (scsi_status & SS_RESIDUAL_UNDER) {
2606                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2607                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2608                                     "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
2609                                     resid, scsi_bufflen(cp));
2610
2611                                 res = DID_ERROR << 16 | lscsi_status;
2612                                 goto check_scsi_status;
2613                         }
2614
2615                         if (!lscsi_status &&
2616                             ((unsigned)(scsi_bufflen(cp) - resid) <
2617                             cp->underflow)) {
2618                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2619                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
2620                                     resid, scsi_bufflen(cp));
2621
2622                                 res = DID_ERROR << 16;
2623                                 break;
2624                         }
2625                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2626                             lscsi_status != SAM_STAT_BUSY) {
2627                         /*
2628                          * scsi status of task set and busy are considered to be
2629                          * task not completed.
2630                          */
2631
2632                         ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2633                             "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
2634                             resid, scsi_bufflen(cp));
2635
2636                         res = DID_ERROR << 16 | lscsi_status;
2637                         goto check_scsi_status;
2638                 } else {
2639                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2640                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2641                             scsi_status, lscsi_status);
2642                 }
2643
2644                 res = DID_OK << 16 | lscsi_status;
2645                 logit = 0;
2646
2647 check_scsi_status:
2648                 /*
2649                  * Check to see if SCSI Status is non zero. If so report SCSI
2650                  * Status.
2651                  */
2652                 if (lscsi_status != 0) {
2653                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2654                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2655                                     "QUEUE FULL detected.\n");
2656                                 logit = 1;
2657                                 break;
2658                         }
2659                         if (lscsi_status != SS_CHECK_CONDITION)
2660                                 break;
2661
2662                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2663                         if (!(scsi_status & SS_SENSE_LEN_VALID))
2664                                 break;
2665
2666                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
2667                             sense_len, rsp, res);
2668                 }
2669                 break;
2670
2671         case CS_PORT_LOGGED_OUT:
2672         case CS_PORT_CONFIG_CHG:
2673         case CS_PORT_BUSY:
2674         case CS_INCOMPLETE:
2675         case CS_PORT_UNAVAILABLE:
2676         case CS_TIMEOUT:
2677         case CS_RESET:
2678
2679                 /*
2680                  * We are going to have the fc class block the rport
2681                  * while we try to recover so instruct the mid layer
2682                  * to requeue until the class decides how to handle this.
2683                  */
2684                 res = DID_TRANSPORT_DISRUPTED << 16;
2685
2686                 if (comp_status == CS_TIMEOUT) {
2687                         if (IS_FWI2_CAPABLE(ha))
2688                                 break;
2689                         else if ((le16_to_cpu(sts->status_flags) &
2690                             SF_LOGOUT_SENT) == 0)
2691                                 break;
2692                 }
2693
2694                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2695                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2696                                 "Port to be marked lost on fcport=%02x%02x%02x, current "
2697                                 "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
2698                                 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2699                                 port_state_str[atomic_read(&fcport->state)],
2700                                 comp_status);
2701
2702                         qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2703                         qlt_schedule_sess_for_deletion(fcport);
2704                 }
2705
2706                 break;
2707
2708         case CS_ABORTED:
2709                 res = DID_RESET << 16;
2710                 break;
2711
2712         case CS_DIF_ERROR:
2713                 logit = qla2x00_handle_dif_error(sp, sts24);
2714                 res = cp->result;
2715                 break;
2716
2717         case CS_TRANSPORT:
2718                 res = DID_ERROR << 16;
2719
2720                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2721                         break;
2722
2723                 if (state_flags & BIT_4)
2724                         scmd_printk(KERN_WARNING, cp,
2725                             "Unsupported device '%s' found.\n",
2726                             cp->device->vendor);
2727                 break;
2728
2729         default:
2730                 res = DID_ERROR << 16;
2731                 break;
2732         }
2733
2734 out:
2735         if (logit)
2736                 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2737                     "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2738                     "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2739                     "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
2740                     comp_status, scsi_status, res, vha->host_no,
2741                     cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2742                     fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2743                     cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2744                     resid_len, fw_resid_len, sp, cp);
2745
2746         if (rsp->status_srb == NULL)
2747                 sp->done(sp, res);
2748 }
2749
2750 /**
2751  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2752  * @rsp: response queue
2753  * @pkt: Entry pointer
2754  *
2755  * Extended sense data.
2756  */
2757 static void
2758 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2759 {
2760         uint8_t sense_sz = 0;
2761         struct qla_hw_data *ha = rsp->hw;
2762         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2763         srb_t *sp = rsp->status_srb;
2764         struct scsi_cmnd *cp;
2765         uint32_t sense_len;
2766         uint8_t *sense_ptr;
2767
2768         if (!sp || !GET_CMD_SENSE_LEN(sp))
2769                 return;
2770
2771         sense_len = GET_CMD_SENSE_LEN(sp);
2772         sense_ptr = GET_CMD_SENSE_PTR(sp);
2773
2774         cp = GET_CMD_SP(sp);
2775         if (cp == NULL) {
2776                 ql_log(ql_log_warn, vha, 0x3025,
2777                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2778
2779                 rsp->status_srb = NULL;
2780                 return;
2781         }
2782
2783         if (sense_len > sizeof(pkt->data))
2784                 sense_sz = sizeof(pkt->data);
2785         else
2786                 sense_sz = sense_len;
2787
2788         /* Move sense data. */
2789         if (IS_FWI2_CAPABLE(ha))
2790                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2791         memcpy(sense_ptr, pkt->data, sense_sz);
2792         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2793                 sense_ptr, sense_sz);
2794
2795         sense_len -= sense_sz;
2796         sense_ptr += sense_sz;
2797
2798         SET_CMD_SENSE_PTR(sp, sense_ptr);
2799         SET_CMD_SENSE_LEN(sp, sense_len);
2800
2801         /* Place command on done queue. */
2802         if (sense_len == 0) {
2803                 rsp->status_srb = NULL;
2804                 sp->done(sp, cp->result);
2805         }
2806 }
2807
2808 /**
2809  * qla2x00_error_entry() - Process an error entry.
2810  * @vha: SCSI driver HA context
2811  * @rsp: response queue
2812  * @pkt: Entry pointer
2813  * return : 1=allow further error analysis. 0=no additional error analysis.
2814  */
2815 static int
2816 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2817 {
2818         srb_t *sp;
2819         struct qla_hw_data *ha = vha->hw;
2820         const char func[] = "ERROR-IOCB";
2821         uint16_t que = MSW(pkt->handle);
2822         struct req_que *req = NULL;
2823         int res = DID_ERROR << 16;
2824
2825         ql_dbg(ql_dbg_async, vha, 0x502a,
2826             "iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
2827             pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
2828
2829         if (que >= ha->max_req_queues || !ha->req_q_map[que])
2830                 goto fatal;
2831
2832         req = ha->req_q_map[que];
2833
2834         if (pkt->entry_status & RF_BUSY)
2835                 res = DID_BUS_BUSY << 16;
2836
2837         if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
2838                 return 0;
2839
2840         switch (pkt->entry_type) {
2841         case NOTIFY_ACK_TYPE:
2842         case STATUS_TYPE:
2843         case STATUS_CONT_TYPE:
2844         case LOGINOUT_PORT_IOCB_TYPE:
2845         case CT_IOCB_TYPE:
2846         case ELS_IOCB_TYPE:
2847         case ABORT_IOCB_TYPE:
2848         case MBX_IOCB_TYPE:
2849         default:
2850                 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2851                 if (sp) {
2852                         sp->done(sp, res);
2853                         return 0;
2854                 }
2855                 break;
2856
2857         case ABTS_RESP_24XX:
2858         case CTIO_TYPE7:
2859         case CTIO_CRC2:
2860                 return 1;
2861         }
2862 fatal:
2863         ql_log(ql_log_warn, vha, 0x5030,
2864             "Error entry - invalid handle/queue (%04x).\n", que);
2865         return 0;
2866 }
2867
2868 /**
2869  * qla24xx_mbx_completion() - Process mailbox command completions.
2870  * @vha: SCSI driver HA context
2871  * @mb0: Mailbox0 register
2872  */
2873 static void
2874 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2875 {
2876         uint16_t        cnt;
2877         uint32_t        mboxes;
2878         uint16_t __iomem *wptr;
2879         struct qla_hw_data *ha = vha->hw;
2880         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2881
2882         /* Read all mbox registers? */
2883         WARN_ON_ONCE(ha->mbx_count > 32);
2884         mboxes = (1ULL << ha->mbx_count) - 1;
2885         if (!ha->mcp)
2886                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2887         else
2888                 mboxes = ha->mcp->in_mb;
2889
2890         /* Load return mailbox registers. */
2891         ha->flags.mbox_int = 1;
2892         ha->mailbox_out[0] = mb0;
2893         mboxes >>= 1;
2894         wptr = (uint16_t __iomem *)&reg->mailbox1;
2895
2896         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2897                 if (mboxes & BIT_0)
2898                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2899
2900                 mboxes >>= 1;
2901                 wptr++;
2902         }
2903 }
2904
2905 static void
2906 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2907         struct abort_entry_24xx *pkt)
2908 {
2909         const char func[] = "ABT_IOCB";
2910         srb_t *sp;
2911         struct srb_iocb *abt;
2912
2913         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2914         if (!sp)
2915                 return;
2916
2917         abt = &sp->u.iocb_cmd;
2918         abt->u.abt.comp_status = le16_to_cpu(pkt->nport_handle);
2919         sp->done(sp, 0);
2920 }
2921
2922 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
2923     struct pt_ls4_request *pkt, struct req_que *req)
2924 {
2925         srb_t *sp;
2926         const char func[] = "LS4_IOCB";
2927         uint16_t comp_status;
2928
2929         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2930         if (!sp)
2931                 return;
2932
2933         comp_status = le16_to_cpu(pkt->status);
2934         sp->done(sp, comp_status);
2935 }
2936
2937 /**
2938  * qla24xx_process_response_queue() - Process response queue entries.
2939  * @vha: SCSI driver HA context
2940  * @rsp: response queue
2941  */
2942 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2943         struct rsp_que *rsp)
2944 {
2945         struct sts_entry_24xx *pkt;
2946         struct qla_hw_data *ha = vha->hw;
2947
2948         if (!ha->flags.fw_started)
2949                 return;
2950
2951         if (rsp->qpair->cpuid != smp_processor_id())
2952                 qla_cpu_update(rsp->qpair, smp_processor_id());
2953
2954         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2955                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2956
2957                 rsp->ring_index++;
2958                 if (rsp->ring_index == rsp->length) {
2959                         rsp->ring_index = 0;
2960                         rsp->ring_ptr = rsp->ring;
2961                 } else {
2962                         rsp->ring_ptr++;
2963                 }
2964
2965                 if (pkt->entry_status != 0) {
2966                         if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
2967                                 goto process_err;
2968
2969                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2970                         wmb();
2971                         continue;
2972                 }
2973 process_err:
2974
2975                 switch (pkt->entry_type) {
2976                 case STATUS_TYPE:
2977                         qla2x00_status_entry(vha, rsp, pkt);
2978                         break;
2979                 case STATUS_CONT_TYPE:
2980                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2981                         break;
2982                 case VP_RPT_ID_IOCB_TYPE:
2983                         qla24xx_report_id_acquisition(vha,
2984                             (struct vp_rpt_id_entry_24xx *)pkt);
2985                         break;
2986                 case LOGINOUT_PORT_IOCB_TYPE:
2987                         qla24xx_logio_entry(vha, rsp->req,
2988                             (struct logio_entry_24xx *)pkt);
2989                         break;
2990                 case CT_IOCB_TYPE:
2991                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2992                         break;
2993                 case ELS_IOCB_TYPE:
2994                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2995                         break;
2996                 case ABTS_RECV_24XX:
2997                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
2998                                 /* ensure that the ATIO queue is empty */
2999                                 qlt_handle_abts_recv(vha, rsp,
3000                                     (response_t *)pkt);
3001                                 break;
3002                         } else {
3003                                 qlt_24xx_process_atio_queue(vha, 1);
3004                         }
3005                         /* fall through */
3006                 case ABTS_RESP_24XX:
3007                 case CTIO_TYPE7:
3008                 case CTIO_CRC2:
3009                         qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
3010                         break;
3011                 case PT_LS4_REQUEST:
3012                         qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
3013                             rsp->req);
3014                         break;
3015                 case NOTIFY_ACK_TYPE:
3016                         if (pkt->handle == QLA_TGT_SKIP_HANDLE)
3017                                 qlt_response_pkt_all_vps(vha, rsp,
3018                                     (response_t *)pkt);
3019                         else
3020                                 qla24xxx_nack_iocb_entry(vha, rsp->req,
3021                                         (struct nack_to_isp *)pkt);
3022                         break;
3023                 case MARKER_TYPE:
3024                         /* Do nothing in this case, this check is to prevent it
3025                          * from falling into default case
3026                          */
3027                         break;
3028                 case ABORT_IOCB_TYPE:
3029                         qla24xx_abort_iocb_entry(vha, rsp->req,
3030                             (struct abort_entry_24xx *)pkt);
3031                         break;
3032                 case MBX_IOCB_TYPE:
3033                         qla24xx_mbx_iocb_entry(vha, rsp->req,
3034                             (struct mbx_24xx_entry *)pkt);
3035                         break;
3036                 case VP_CTRL_IOCB_TYPE:
3037                         qla_ctrlvp_completed(vha, rsp->req,
3038                             (struct vp_ctrl_entry_24xx *)pkt);
3039                         break;
3040                 default:
3041                         /* Type Not Supported. */
3042                         ql_dbg(ql_dbg_async, vha, 0x5042,
3043                             "Received unknown response pkt type %x "
3044                             "entry status=%x.\n",
3045                             pkt->entry_type, pkt->entry_status);
3046                         break;
3047                 }
3048                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3049                 wmb();
3050         }
3051
3052         /* Adjust ring index */
3053         if (IS_P3P_TYPE(ha)) {
3054                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
3055                 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
3056         } else {
3057                 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
3058         }
3059 }
3060
3061 static void
3062 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
3063 {
3064         int rval;
3065         uint32_t cnt;
3066         struct qla_hw_data *ha = vha->hw;
3067         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3068
3069         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3070             !IS_QLA27XX(ha))
3071                 return;
3072
3073         rval = QLA_SUCCESS;
3074         WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
3075         RD_REG_DWORD(&reg->iobase_addr);
3076         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
3077         for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
3078             rval == QLA_SUCCESS; cnt--) {
3079                 if (cnt) {
3080                         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
3081                         udelay(10);
3082                 } else
3083                         rval = QLA_FUNCTION_TIMEOUT;
3084         }
3085         if (rval == QLA_SUCCESS)
3086                 goto next_test;
3087
3088         rval = QLA_SUCCESS;
3089         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
3090         for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
3091             rval == QLA_SUCCESS; cnt--) {
3092                 if (cnt) {
3093                         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
3094                         udelay(10);
3095                 } else
3096                         rval = QLA_FUNCTION_TIMEOUT;
3097         }
3098         if (rval != QLA_SUCCESS)
3099                 goto done;
3100
3101 next_test:
3102         if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
3103                 ql_log(ql_log_info, vha, 0x504c,
3104                     "Additional code -- 0x55AA.\n");
3105
3106 done:
3107         WRT_REG_DWORD(&reg->iobase_window, 0x0000);
3108         RD_REG_DWORD(&reg->iobase_window);
3109 }
3110
3111 /**
3112  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
3113  * @irq:
3114  * @dev_id: SCSI driver HA context
3115  *
3116  * Called by system whenever the host adapter generates an interrupt.
3117  *
3118  * Returns handled flag.
3119  */
3120 irqreturn_t
3121 qla24xx_intr_handler(int irq, void *dev_id)
3122 {
3123         scsi_qla_host_t *vha;
3124         struct qla_hw_data *ha;
3125         struct device_reg_24xx __iomem *reg;
3126         int             status;
3127         unsigned long   iter;
3128         uint32_t        stat;
3129         uint32_t        hccr;
3130         uint16_t        mb[8];
3131         struct rsp_que *rsp;
3132         unsigned long   flags;
3133         bool process_atio = false;
3134
3135         rsp = (struct rsp_que *) dev_id;
3136         if (!rsp) {
3137                 ql_log(ql_log_info, NULL, 0x5059,
3138                     "%s: NULL response queue pointer.\n", __func__);
3139                 return IRQ_NONE;
3140         }
3141
3142         ha = rsp->hw;
3143         reg = &ha->iobase->isp24;
3144         status = 0;
3145
3146         if (unlikely(pci_channel_offline(ha->pdev)))
3147                 return IRQ_HANDLED;
3148
3149         spin_lock_irqsave(&ha->hardware_lock, flags);
3150         vha = pci_get_drvdata(ha->pdev);
3151         for (iter = 50; iter--; ) {
3152                 stat = RD_REG_DWORD(&reg->host_status);
3153                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3154                         break;
3155                 if (stat & HSRX_RISC_PAUSED) {
3156                         if (unlikely(pci_channel_offline(ha->pdev)))
3157                                 break;
3158
3159                         hccr = RD_REG_DWORD(&reg->hccr);
3160
3161                         ql_log(ql_log_warn, vha, 0x504b,
3162                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3163                             hccr);
3164
3165                         qla2xxx_check_risc_status(vha);
3166
3167                         ha->isp_ops->fw_dump(vha, 1);
3168                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3169                         break;
3170                 } else if ((stat & HSRX_RISC_INT) == 0)
3171                         break;
3172
3173                 switch (stat & 0xff) {
3174                 case INTR_ROM_MB_SUCCESS:
3175                 case INTR_ROM_MB_FAILED:
3176                 case INTR_MB_SUCCESS:
3177                 case INTR_MB_FAILED:
3178                         qla24xx_mbx_completion(vha, MSW(stat));
3179                         status |= MBX_INTERRUPT;
3180
3181                         break;
3182                 case INTR_ASYNC_EVENT:
3183                         mb[0] = MSW(stat);
3184                         mb[1] = RD_REG_WORD(&reg->mailbox1);
3185                         mb[2] = RD_REG_WORD(&reg->mailbox2);
3186                         mb[3] = RD_REG_WORD(&reg->mailbox3);
3187                         qla2x00_async_event(vha, rsp, mb);
3188                         break;
3189                 case INTR_RSP_QUE_UPDATE:
3190                 case INTR_RSP_QUE_UPDATE_83XX:
3191                         qla24xx_process_response_queue(vha, rsp);
3192                         break;
3193                 case INTR_ATIO_QUE_UPDATE_27XX:
3194                 case INTR_ATIO_QUE_UPDATE:
3195                         process_atio = true;
3196                         break;
3197                 case INTR_ATIO_RSP_QUE_UPDATE:
3198                         process_atio = true;
3199                         qla24xx_process_response_queue(vha, rsp);
3200                         break;
3201                 default:
3202                         ql_dbg(ql_dbg_async, vha, 0x504f,
3203                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
3204                         break;
3205                 }
3206                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3207                 RD_REG_DWORD_RELAXED(&reg->hccr);
3208                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
3209                         ndelay(3500);
3210         }
3211         qla2x00_handle_mbx_completion(ha, status);
3212         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3213
3214         if (process_atio) {
3215                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3216                 qlt_24xx_process_atio_queue(vha, 0);
3217                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3218         }
3219
3220         return IRQ_HANDLED;
3221 }
3222
3223 static irqreturn_t
3224 qla24xx_msix_rsp_q(int irq, void *dev_id)
3225 {
3226         struct qla_hw_data *ha;
3227         struct rsp_que *rsp;
3228         struct device_reg_24xx __iomem *reg;
3229         struct scsi_qla_host *vha;
3230         unsigned long flags;
3231
3232         rsp = (struct rsp_que *) dev_id;
3233         if (!rsp) {
3234                 ql_log(ql_log_info, NULL, 0x505a,
3235                     "%s: NULL response queue pointer.\n", __func__);
3236                 return IRQ_NONE;
3237         }
3238         ha = rsp->hw;
3239         reg = &ha->iobase->isp24;
3240
3241         spin_lock_irqsave(&ha->hardware_lock, flags);
3242
3243         vha = pci_get_drvdata(ha->pdev);
3244         qla24xx_process_response_queue(vha, rsp);
3245         if (!ha->flags.disable_msix_handshake) {
3246                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3247                 RD_REG_DWORD_RELAXED(&reg->hccr);
3248         }
3249         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3250
3251         return IRQ_HANDLED;
3252 }
3253
3254 static irqreturn_t
3255 qla24xx_msix_default(int irq, void *dev_id)
3256 {
3257         scsi_qla_host_t *vha;
3258         struct qla_hw_data *ha;
3259         struct rsp_que *rsp;
3260         struct device_reg_24xx __iomem *reg;
3261         int             status;
3262         uint32_t        stat;
3263         uint32_t        hccr;
3264         uint16_t        mb[8];
3265         unsigned long flags;
3266         bool process_atio = false;
3267
3268         rsp = (struct rsp_que *) dev_id;
3269         if (!rsp) {
3270                 ql_log(ql_log_info, NULL, 0x505c,
3271                     "%s: NULL response queue pointer.\n", __func__);
3272                 return IRQ_NONE;
3273         }
3274         ha = rsp->hw;
3275         reg = &ha->iobase->isp24;
3276         status = 0;
3277
3278         spin_lock_irqsave(&ha->hardware_lock, flags);
3279         vha = pci_get_drvdata(ha->pdev);
3280         do {
3281                 stat = RD_REG_DWORD(&reg->host_status);
3282                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3283                         break;
3284                 if (stat & HSRX_RISC_PAUSED) {
3285                         if (unlikely(pci_channel_offline(ha->pdev)))
3286                                 break;
3287
3288                         hccr = RD_REG_DWORD(&reg->hccr);
3289
3290                         ql_log(ql_log_info, vha, 0x5050,
3291                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3292                             hccr);
3293
3294                         qla2xxx_check_risc_status(vha);
3295
3296                         ha->isp_ops->fw_dump(vha, 1);
3297                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3298                         break;
3299                 } else if ((stat & HSRX_RISC_INT) == 0)
3300                         break;
3301
3302                 switch (stat & 0xff) {
3303                 case INTR_ROM_MB_SUCCESS:
3304                 case INTR_ROM_MB_FAILED:
3305                 case INTR_MB_SUCCESS:
3306                 case INTR_MB_FAILED:
3307                         qla24xx_mbx_completion(vha, MSW(stat));
3308                         status |= MBX_INTERRUPT;
3309
3310                         break;
3311                 case INTR_ASYNC_EVENT:
3312                         mb[0] = MSW(stat);
3313                         mb[1] = RD_REG_WORD(&reg->mailbox1);
3314                         mb[2] = RD_REG_WORD(&reg->mailbox2);
3315                         mb[3] = RD_REG_WORD(&reg->mailbox3);
3316                         qla2x00_async_event(vha, rsp, mb);
3317                         break;
3318                 case INTR_RSP_QUE_UPDATE:
3319                 case INTR_RSP_QUE_UPDATE_83XX:
3320                         qla24xx_process_response_queue(vha, rsp);
3321                         break;
3322                 case INTR_ATIO_QUE_UPDATE_27XX:
3323                 case INTR_ATIO_QUE_UPDATE:
3324                         process_atio = true;
3325                         break;
3326                 case INTR_ATIO_RSP_QUE_UPDATE:
3327                         process_atio = true;
3328                         qla24xx_process_response_queue(vha, rsp);
3329                         break;
3330                 default:
3331                         ql_dbg(ql_dbg_async, vha, 0x5051,
3332                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
3333                         break;
3334                 }
3335                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3336         } while (0);
3337         qla2x00_handle_mbx_completion(ha, status);
3338         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3339
3340         if (process_atio) {
3341                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3342                 qlt_24xx_process_atio_queue(vha, 0);
3343                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3344         }
3345
3346         return IRQ_HANDLED;
3347 }
3348
3349 irqreturn_t
3350 qla2xxx_msix_rsp_q(int irq, void *dev_id)
3351 {
3352         struct qla_hw_data *ha;
3353         struct qla_qpair *qpair;
3354         struct device_reg_24xx __iomem *reg;
3355         unsigned long flags;
3356
3357         qpair = dev_id;
3358         if (!qpair) {
3359                 ql_log(ql_log_info, NULL, 0x505b,
3360                     "%s: NULL response queue pointer.\n", __func__);
3361                 return IRQ_NONE;
3362         }
3363         ha = qpair->hw;
3364
3365         /* Clear the interrupt, if enabled, for this response queue */
3366         if (unlikely(!ha->flags.disable_msix_handshake)) {
3367                 reg = &ha->iobase->isp24;
3368                 spin_lock_irqsave(&ha->hardware_lock, flags);
3369                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3370                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3371         }
3372
3373         queue_work(ha->wq, &qpair->q_work);
3374
3375         return IRQ_HANDLED;
3376 }
3377
3378 /* Interrupt handling helpers. */
3379
3380 struct qla_init_msix_entry {
3381         const char *name;
3382         irq_handler_t handler;
3383 };
3384
3385 static const struct qla_init_msix_entry msix_entries[] = {
3386         { "default", qla24xx_msix_default },
3387         { "rsp_q", qla24xx_msix_rsp_q },
3388         { "atio_q", qla83xx_msix_atio_q },
3389         { "qpair_multiq", qla2xxx_msix_rsp_q },
3390 };
3391
3392 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
3393         { "qla2xxx (default)", qla82xx_msix_default },
3394         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3395 };
3396
3397 static int
3398 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3399 {
3400         int i, ret;
3401         struct qla_msix_entry *qentry;
3402         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3403         int min_vecs = QLA_BASE_VECTORS;
3404         struct irq_affinity desc = {
3405                 .pre_vectors = QLA_BASE_VECTORS,
3406         };
3407
3408         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
3409             IS_ATIO_MSIX_CAPABLE(ha)) {
3410                 desc.pre_vectors++;
3411                 min_vecs++;
3412         }
3413
3414         if (USER_CTRL_IRQ(ha)) {
3415                 /* user wants to control IRQ setting for target mode */
3416                 ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
3417                     ha->msix_count, PCI_IRQ_MSIX);
3418         } else
3419                 ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
3420                     ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
3421                     &desc);
3422
3423         if (ret < 0) {
3424                 ql_log(ql_log_fatal, vha, 0x00c7,
3425                     "MSI-X: Failed to enable support, "
3426                     "giving   up -- %d/%d.\n",
3427                     ha->msix_count, ret);
3428                 goto msix_out;
3429         } else if (ret < ha->msix_count) {
3430                 ql_log(ql_log_info, vha, 0x00c6,
3431                     "MSI-X: Using %d vectors\n", ret);
3432                 ha->msix_count = ret;
3433                 /* Recalculate queue values */
3434                 if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
3435                         ha->max_req_queues = ha->msix_count - 1;
3436
3437                         /* ATIOQ needs 1 vector. That's 1 less QPair */
3438                         if (QLA_TGT_MODE_ENABLED())
3439                                 ha->max_req_queues--;
3440
3441                         ha->max_rsp_queues = ha->max_req_queues;
3442
3443                         ha->max_qpairs = ha->max_req_queues - 1;
3444                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
3445                             "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
3446                 }
3447         }
3448         ha->msix_entries = kcalloc(ha->msix_count,
3449                                    sizeof(struct qla_msix_entry),
3450                                    GFP_KERNEL);
3451         if (!ha->msix_entries) {
3452                 ql_log(ql_log_fatal, vha, 0x00c8,
3453                     "Failed to allocate memory for ha->msix_entries.\n");
3454                 ret = -ENOMEM;
3455                 goto free_irqs;
3456         }
3457         ha->flags.msix_enabled = 1;
3458
3459         for (i = 0; i < ha->msix_count; i++) {
3460                 qentry = &ha->msix_entries[i];
3461                 qentry->vector = pci_irq_vector(ha->pdev, i);
3462                 qentry->entry = i;
3463                 qentry->have_irq = 0;
3464                 qentry->in_use = 0;
3465                 qentry->handle = NULL;
3466         }
3467
3468         /* Enable MSI-X vectors for the base queue */
3469         for (i = 0; i < QLA_BASE_VECTORS; i++) {
3470                 qentry = &ha->msix_entries[i];
3471                 qentry->handle = rsp;
3472                 rsp->msix = qentry;
3473                 scnprintf(qentry->name, sizeof(qentry->name),
3474                     "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
3475                 if (IS_P3P_TYPE(ha))
3476                         ret = request_irq(qentry->vector,
3477                                 qla82xx_msix_entries[i].handler,
3478                                 0, qla82xx_msix_entries[i].name, rsp);
3479                 else
3480                         ret = request_irq(qentry->vector,
3481                                 msix_entries[i].handler,
3482                                 0, qentry->name, rsp);
3483                 if (ret)
3484                         goto msix_register_fail;
3485                 qentry->have_irq = 1;
3486                 qentry->in_use = 1;
3487         }
3488
3489         /*
3490          * If target mode is enable, also request the vector for the ATIO
3491          * queue.
3492          */
3493         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
3494             IS_ATIO_MSIX_CAPABLE(ha)) {
3495                 qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
3496                 rsp->msix = qentry;
3497                 qentry->handle = rsp;
3498                 scnprintf(qentry->name, sizeof(qentry->name),
3499                     "qla2xxx%lu_%s", vha->host_no,
3500                     msix_entries[QLA_ATIO_VECTOR].name);
3501                 qentry->in_use = 1;
3502                 ret = request_irq(qentry->vector,
3503                         msix_entries[QLA_ATIO_VECTOR].handler,
3504                         0, qentry->name, rsp);
3505                 qentry->have_irq = 1;
3506         }
3507
3508 msix_register_fail:
3509         if (ret) {
3510                 ql_log(ql_log_fatal, vha, 0x00cb,
3511                     "MSI-X: unable to register handler -- %x/%d.\n",
3512                     qentry->vector, ret);
3513                 qla2x00_free_irqs(vha);
3514                 ha->mqenable = 0;
3515                 goto msix_out;
3516         }
3517
3518         /* Enable MSI-X vector for response queue update for queue 0 */
3519         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3520                 if (ha->msixbase && ha->mqiobase &&
3521                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3522                      ql2xmqsupport))
3523                         ha->mqenable = 1;
3524         } else
3525                 if (ha->mqiobase &&
3526                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3527                      ql2xmqsupport))
3528                         ha->mqenable = 1;
3529         ql_dbg(ql_dbg_multiq, vha, 0xc005,
3530             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3531             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3532         ql_dbg(ql_dbg_init, vha, 0x0055,
3533             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3534             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3535
3536 msix_out:
3537         return ret;
3538
3539 free_irqs:
3540         pci_free_irq_vectors(ha->pdev);
3541         goto msix_out;
3542 }
3543
3544 int
3545 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3546 {
3547         int ret = QLA_FUNCTION_FAILED;
3548         device_reg_t *reg = ha->iobase;
3549         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3550
3551         /* If possible, enable MSI-X. */
3552         if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
3553             !IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
3554             !IS_QLAFX00(ha) && !IS_QLA27XX(ha)))
3555                 goto skip_msi;
3556
3557         if (ql2xenablemsix == 2)
3558                 goto skip_msix;
3559
3560         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3561                 (ha->pdev->subsystem_device == 0x7040 ||
3562                 ha->pdev->subsystem_device == 0x7041 ||
3563                 ha->pdev->subsystem_device == 0x1705)) {
3564                 ql_log(ql_log_warn, vha, 0x0034,
3565                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3566                         ha->pdev->subsystem_vendor,
3567                         ha->pdev->subsystem_device);
3568                 goto skip_msi;
3569         }
3570
3571         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3572                 ql_log(ql_log_warn, vha, 0x0035,
3573                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3574                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3575                 goto skip_msix;
3576         }
3577
3578         ret = qla24xx_enable_msix(ha, rsp);
3579         if (!ret) {
3580                 ql_dbg(ql_dbg_init, vha, 0x0036,
3581                     "MSI-X: Enabled (0x%X, 0x%X).\n",
3582                     ha->chip_revision, ha->fw_attributes);
3583                 goto clear_risc_ints;
3584         }
3585
3586 skip_msix:
3587
3588         ql_log(ql_log_info, vha, 0x0037,
3589             "Falling back-to MSI mode -- ret=%d.\n", ret);
3590
3591         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3592             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3593             !IS_QLA27XX(ha))
3594                 goto skip_msi;
3595
3596         ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
3597         if (ret > 0) {
3598                 ql_dbg(ql_dbg_init, vha, 0x0038,
3599                     "MSI: Enabled.\n");
3600                 ha->flags.msi_enabled = 1;
3601         } else
3602                 ql_log(ql_log_warn, vha, 0x0039,
3603                     "Falling back-to INTa mode -- ret=%d.\n", ret);
3604 skip_msi:
3605
3606         /* Skip INTx on ISP82xx. */
3607         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3608                 return QLA_FUNCTION_FAILED;
3609
3610         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3611             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3612             QLA2XXX_DRIVER_NAME, rsp);
3613         if (ret) {
3614                 ql_log(ql_log_warn, vha, 0x003a,
3615                     "Failed to reserve interrupt %d already in use.\n",
3616                     ha->pdev->irq);
3617                 goto fail;
3618         } else if (!ha->flags.msi_enabled) {
3619                 ql_dbg(ql_dbg_init, vha, 0x0125,
3620                     "INTa mode: Enabled.\n");
3621                 ha->flags.mr_intr_valid = 1;
3622         }
3623
3624 clear_risc_ints:
3625         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3626                 goto fail;
3627
3628         spin_lock_irq(&ha->hardware_lock);
3629         WRT_REG_WORD(&reg->isp.semaphore, 0);
3630         spin_unlock_irq(&ha->hardware_lock);
3631
3632 fail:
3633         return ret;
3634 }
3635
3636 void
3637 qla2x00_free_irqs(scsi_qla_host_t *vha)
3638 {
3639         struct qla_hw_data *ha = vha->hw;
3640         struct rsp_que *rsp;
3641         struct qla_msix_entry *qentry;
3642         int i;
3643
3644         /*
3645          * We need to check that ha->rsp_q_map is valid in case we are called
3646          * from a probe failure context.
3647          */
3648         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3649                 goto free_irqs;
3650         rsp = ha->rsp_q_map[0];
3651
3652         if (ha->flags.msix_enabled) {
3653                 for (i = 0; i < ha->msix_count; i++) {
3654                         qentry = &ha->msix_entries[i];
3655                         if (qentry->have_irq) {
3656                                 irq_set_affinity_notifier(qentry->vector, NULL);
3657                                 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
3658                         }
3659                 }
3660                 kfree(ha->msix_entries);
3661                 ha->msix_entries = NULL;
3662                 ha->flags.msix_enabled = 0;
3663                 ql_dbg(ql_dbg_init, vha, 0x0042,
3664                         "Disabled MSI-X.\n");
3665         } else {
3666                 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
3667         }
3668
3669 free_irqs:
3670         pci_free_irq_vectors(ha->pdev);
3671 }
3672
3673 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
3674         struct qla_msix_entry *msix, int vector_type)
3675 {
3676         const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
3677         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3678         int ret;
3679
3680         scnprintf(msix->name, sizeof(msix->name),
3681             "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
3682         ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
3683         if (ret) {
3684                 ql_log(ql_log_fatal, vha, 0x00e6,
3685                     "MSI-X: Unable to register handler -- %x/%d.\n",
3686                     msix->vector, ret);
3687                 return ret;
3688         }
3689         msix->have_irq = 1;
3690         msix->handle = qpair;
3691         return ret;
3692 }