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  * @ha: 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         mboxes = (1 << ha->mbx_count) - 1;
 276         if (!ha->mcp)
 277                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 278         else
 279                 mboxes = ha->mcp->in_mb;
 280
 281         /* Load return mailbox registers. */
 282         ha->flags.mbox_int = 1;
 283         ha->mailbox_out[0] = mb0;
 284         mboxes >>= 1;
 285         wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
 286
 287         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 288                 if (IS_QLA2200(ha) && cnt == 8)
 289                         wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
 290                 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 291                         ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 292                 else if (mboxes & BIT_0)
 293                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
 294
 295                 wptr++;
 296                 mboxes >>= 1;
 297         }
 298 }
 299
 300 static void
 301 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 302 {
 303         static char *event[] =
 304                 { "Complete", "Request Notification", "Time Extension" };
 305         int rval;
 306         struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 307         struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 308         uint16_t __iomem *wptr;
 309         uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 310
 311         /* Seed data -- mailbox1 -> mailbox7. */
 312         if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 313                 wptr = (uint16_t __iomem *)&reg24->mailbox1;
 314         else if (IS_QLA8044(vha->hw))
 315                 wptr = (uint16_t __iomem *)&reg82->mailbox_out[1];
 316         else
 317                 return;
 318
 319         for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 320                 mb[cnt] = RD_REG_WORD(wptr);
 321
 322         ql_dbg(ql_dbg_async, vha, 0x5021,
 323             "Inter-Driver Communication %s -- "
 324             "%04x %04x %04x %04x %04x %04x %04x.\n",
 325             event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 326             mb[4], mb[5], mb[6]);
 327         switch (aen) {
 328         /* Handle IDC Error completion case. */
 329         case MBA_IDC_COMPLETE:
 330                 if (mb[1] >> 15) {
 331                         vha->hw->flags.idc_compl_status = 1;
 332                         if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 333                                 complete(&vha->hw->dcbx_comp);
 334                 }
 335                 break;
 336
 337         case MBA_IDC_NOTIFY:
 338                 /* Acknowledgement needed? [Notify && non-zero timeout]. */
 339                 timeout = (descr >> 8) & 0xf;
 340                 ql_dbg(ql_dbg_async, vha, 0x5022,
 341                     "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 342                     vha->host_no, event[aen & 0xff], timeout);
 343
 344                 if (!timeout)
 345                         return;
 346                 rval = qla2x00_post_idc_ack_work(vha, mb);
 347                 if (rval != QLA_SUCCESS)
 348                         ql_log(ql_log_warn, vha, 0x5023,
 349                             "IDC failed to post ACK.\n");
 350                 break;
 351         case MBA_IDC_TIME_EXT:
 352                 vha->hw->idc_extend_tmo = descr;
 353                 ql_dbg(ql_dbg_async, vha, 0x5087,
 354                     "%lu Inter-Driver Communication %s -- "
 355                     "Extend timeout by=%d.\n",
 356                     vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 357                 break;
 358         }
 359 }
 360
 361 #define LS_UNKNOWN      2
 362 const char *
 363 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 364 {
 365         static const char *const link_speeds[] = {
 366                 "1", "2", "?", "4", "8", "16", "32", "10"
 367         };
 368 #define QLA_LAST_SPEED  7
 369
 370         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 371                 return link_speeds[0];
 372         else if (speed == 0x13)
 373                 return link_speeds[QLA_LAST_SPEED];
 374         else if (speed < QLA_LAST_SPEED)
 375                 return link_speeds[speed];
 376         else
 377                 return link_speeds[LS_UNKNOWN];
 378 }
 379
 380 static void
 381 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 382 {
 383         struct qla_hw_data *ha = vha->hw;
 384
 385         /*
 386          * 8200 AEN Interpretation:
 387          * mb[0] = AEN code
 388          * mb[1] = AEN Reason code
 389          * mb[2] = LSW of Peg-Halt Status-1 Register
 390          * mb[6] = MSW of Peg-Halt Status-1 Register
 391          * mb[3] = LSW of Peg-Halt Status-2 register
 392          * mb[7] = MSW of Peg-Halt Status-2 register
 393          * mb[4] = IDC Device-State Register value
 394          * mb[5] = IDC Driver-Presence Register value
 395          */
 396         ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 397             "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 398             mb[0], mb[1], mb[2], mb[6]);
 399         ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 400             "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 401             "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 402
 403         if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 404                                 IDC_HEARTBEAT_FAILURE)) {
 405                 ha->flags.nic_core_hung = 1;
 406                 ql_log(ql_log_warn, vha, 0x5060,
 407                     "83XX: F/W Error Reported: Check if reset required.\n");
 408
 409                 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 410                         uint32_t protocol_engine_id, fw_err_code, err_level;
 411
 412                         /*
 413                          * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 414                          *  - PEG-Halt Status-1 Register:
 415                          *      (LSW = mb[2], MSW = mb[6])
 416                          *      Bits 0-7   = protocol-engine ID
 417                          *      Bits 8-28  = f/w error code
 418                          *      Bits 29-31 = Error-level
 419                          *          Error-level 0x1 = Non-Fatal error
 420                          *          Error-level 0x2 = Recoverable Fatal error
 421                          *          Error-level 0x4 = UnRecoverable Fatal error
 422                          *  - PEG-Halt Status-2 Register:
 423                          *      (LSW = mb[3], MSW = mb[7])
 424                          */
 425                         protocol_engine_id = (mb[2] & 0xff);
 426                         fw_err_code = (((mb[2] & 0xff00) >> 8) |
 427                             ((mb[6] & 0x1fff) << 8));
 428                         err_level = ((mb[6] & 0xe000) >> 13);
 429                         ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 430                             "Register: protocol_engine_id=0x%x "
 431                             "fw_err_code=0x%x err_level=0x%x.\n",
 432                             protocol_engine_id, fw_err_code, err_level);
 433                         ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 434                             "Register: 0x%x%x.\n", mb[7], mb[3]);
 435                         if (err_level == ERR_LEVEL_NON_FATAL) {
 436                                 ql_log(ql_log_warn, vha, 0x5063,
 437                                     "Not a fatal error, f/w has recovered itself.\n");
 438                         } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 439                                 ql_log(ql_log_fatal, vha, 0x5064,
 440                                     "Recoverable Fatal error: Chip reset "
 441                                     "required.\n");
 442                                 qla83xx_schedule_work(vha,
 443                                     QLA83XX_NIC_CORE_RESET);
 444                         } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 445                                 ql_log(ql_log_fatal, vha, 0x5065,
 446                                     "Unrecoverable Fatal error: Set FAILED "
 447                                     "state, reboot required.\n");
 448                                 qla83xx_schedule_work(vha,
 449                                     QLA83XX_NIC_CORE_UNRECOVERABLE);
 450                         }
 451                 }
 452
 453                 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 454                         uint16_t peg_fw_state, nw_interface_link_up;
 455                         uint16_t nw_interface_signal_detect, sfp_status;
 456                         uint16_t htbt_counter, htbt_monitor_enable;
 457                         uint16_t sfp_additional_info, sfp_multirate;
 458                         uint16_t sfp_tx_fault, link_speed, dcbx_status;
 459
 460                         /*
 461                          * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 462                          *  - PEG-to-FC Status Register:
 463                          *      (LSW = mb[2], MSW = mb[6])
 464                          *      Bits 0-7   = Peg-Firmware state
 465                          *      Bit 8      = N/W Interface Link-up
 466                          *      Bit 9      = N/W Interface signal detected
 467                          *      Bits 10-11 = SFP Status
 468                          *        SFP Status 0x0 = SFP+ transceiver not expected
 469                          *        SFP Status 0x1 = SFP+ transceiver not present
 470                          *        SFP Status 0x2 = SFP+ transceiver invalid
 471                          *        SFP Status 0x3 = SFP+ transceiver present and
 472                          *        valid
 473                          *      Bits 12-14 = Heartbeat Counter
 474                          *      Bit 15     = Heartbeat Monitor Enable
 475                          *      Bits 16-17 = SFP Additional Info
 476                          *        SFP info 0x0 = Unregocnized transceiver for
 477                          *        Ethernet
 478                          *        SFP info 0x1 = SFP+ brand validation failed
 479                          *        SFP info 0x2 = SFP+ speed validation failed
 480                          *        SFP info 0x3 = SFP+ access error
 481                          *      Bit 18     = SFP Multirate
 482                          *      Bit 19     = SFP Tx Fault
 483                          *      Bits 20-22 = Link Speed
 484                          *      Bits 23-27 = Reserved
 485                          *      Bits 28-30 = DCBX Status
 486                          *        DCBX Status 0x0 = DCBX Disabled
 487                          *        DCBX Status 0x1 = DCBX Enabled
 488                          *        DCBX Status 0x2 = DCBX Exchange error
 489                          *      Bit 31     = Reserved
 490                          */
 491                         peg_fw_state = (mb[2] & 0x00ff);
 492                         nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 493                         nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 494                         sfp_status = ((mb[2] & 0x0c00) >> 10);
 495                         htbt_counter = ((mb[2] & 0x7000) >> 12);
 496                         htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 497                         sfp_additional_info = (mb[6] & 0x0003);
 498                         sfp_multirate = ((mb[6] & 0x0004) >> 2);
 499                         sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 500                         link_speed = ((mb[6] & 0x0070) >> 4);
 501                         dcbx_status = ((mb[6] & 0x7000) >> 12);
 502
 503                         ql_log(ql_log_warn, vha, 0x5066,
 504                             "Peg-to-Fc Status Register:\n"
 505                             "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 506                             "nw_interface_signal_detect=0x%x"
 507                             "\nsfp_statis=0x%x.\n ", peg_fw_state,
 508                             nw_interface_link_up, nw_interface_signal_detect,
 509                             sfp_status);
 510                         ql_log(ql_log_warn, vha, 0x5067,
 511                             "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 512                             "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
 513                             htbt_counter, htbt_monitor_enable,
 514                             sfp_additional_info, sfp_multirate);
 515                         ql_log(ql_log_warn, vha, 0x5068,
 516                             "sfp_tx_fault=0x%x, link_state=0x%x, "
 517                             "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 518                             dcbx_status);
 519
 520                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 521                 }
 522
 523                 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 524                         ql_log(ql_log_warn, vha, 0x5069,
 525                             "Heartbeat Failure encountered, chip reset "
 526                             "required.\n");
 527
 528                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 529                 }
 530         }
 531
 532         if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 533                 ql_log(ql_log_info, vha, 0x506a,
 534                     "IDC Device-State changed = 0x%x.\n", mb[4]);
 535                 if (ha->flags.nic_core_reset_owner)
 536                         return;
 537                 qla83xx_schedule_work(vha, MBA_IDC_AEN);
 538         }
 539 }
 540
 541 int
 542 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 543 {
 544         struct qla_hw_data *ha = vha->hw;
 545         scsi_qla_host_t *vp;
 546         uint32_t vp_did;
 547         unsigned long flags;
 548         int ret = 0;
 549
 550         if (!ha->num_vhosts)
 551                 return ret;
 552
 553         spin_lock_irqsave(&ha->vport_slock, flags);
 554         list_for_each_entry(vp, &ha->vp_list, list) {
 555                 vp_did = vp->d_id.b24;
 556                 if (vp_did == rscn_entry) {
 557                         ret = 1;
 558                         break;
 559                 }
 560         }
 561         spin_unlock_irqrestore(&ha->vport_slock, flags);
 562
 563         return ret;
 564 }
 565
 566 fc_port_t *
 567 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
 568 {
 569         fc_port_t *f, *tf;
 570
 571         f = tf = NULL;
 572         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
 573                 if (f->loop_id == loop_id)
 574                         return f;
 575         return NULL;
 576 }
 577
 578 fc_port_t *
 579 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
 580 {
 581         fc_port_t *f, *tf;
 582
 583         f = tf = NULL;
 584         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 585                 if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
 586                         if (incl_deleted)
 587                                 return f;
 588                         else if (f->deleted == 0)
 589                                 return f;
 590                 }
 591         }
 592         return NULL;
 593 }
 594
 595 fc_port_t *
 596 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
 597         u8 incl_deleted)
 598 {
 599         fc_port_t *f, *tf;
 600
 601         f = tf = NULL;
 602         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 603                 if (f->d_id.b24 == id->b24) {
 604                         if (incl_deleted)
 605                                 return f;
 606                         else if (f->deleted == 0)
 607                                 return f;
 608                 }
 609         }
 610         return NULL;
 611 }
 612
 613 /**
 614  * qla2x00_async_event() - Process aynchronous events.
 615  * @ha: SCSI driver HA context
 616  * @mb: Mailbox registers (0 - 3)
 617  */
 618 void
 619 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
 620 {
 621         uint16_t        handle_cnt;
 622         uint16_t        cnt, mbx;
 623         uint32_t        handles[5];
 624         struct qla_hw_data *ha = vha->hw;
 625         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 626         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
 627         struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 628         uint32_t        rscn_entry, host_pid;
 629         unsigned long   flags;
 630         fc_port_t       *fcport = NULL;
 631
 632         /* Setup to process RIO completion. */
 633         handle_cnt = 0;
 634         if (IS_CNA_CAPABLE(ha))
 635                 goto skip_rio;
 636         switch (mb[0]) {
 637         case MBA_SCSI_COMPLETION:
 638                 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
 639                 handle_cnt = 1;
 640                 break;
 641         case MBA_CMPLT_1_16BIT:
 642                 handles[0] = mb[1];
 643                 handle_cnt = 1;
 644                 mb[0] = MBA_SCSI_COMPLETION;
 645                 break;
 646         case MBA_CMPLT_2_16BIT:
 647                 handles[0] = mb[1];
 648                 handles[1] = mb[2];
 649                 handle_cnt = 2;
 650                 mb[0] = MBA_SCSI_COMPLETION;
 651                 break;
 652         case MBA_CMPLT_3_16BIT:
 653                 handles[0] = mb[1];
 654                 handles[1] = mb[2];
 655                 handles[2] = mb[3];
 656                 handle_cnt = 3;
 657                 mb[0] = MBA_SCSI_COMPLETION;
 658                 break;
 659         case MBA_CMPLT_4_16BIT:
 660                 handles[0] = mb[1];
 661                 handles[1] = mb[2];
 662                 handles[2] = mb[3];
 663                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 664                 handle_cnt = 4;
 665                 mb[0] = MBA_SCSI_COMPLETION;
 666                 break;
 667         case MBA_CMPLT_5_16BIT:
 668                 handles[0] = mb[1];
 669                 handles[1] = mb[2];
 670                 handles[2] = mb[3];
 671                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 672                 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
 673                 handle_cnt = 5;
 674                 mb[0] = MBA_SCSI_COMPLETION;
 675                 break;
 676         case MBA_CMPLT_2_32BIT:
 677                 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
 678                 handles[1] = le32_to_cpu(
 679                     ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
 680                     RD_MAILBOX_REG(ha, reg, 6));
 681                 handle_cnt = 2;
 682                 mb[0] = MBA_SCSI_COMPLETION;
 683                 break;
 684         default:
 685                 break;
 686         }
 687 skip_rio:
 688         switch (mb[0]) {
 689         case MBA_SCSI_COMPLETION:       /* Fast Post */
 690                 if (!vha->flags.online)
 691                         break;
 692
 693                 for (cnt = 0; cnt < handle_cnt; cnt++)
 694                         qla2x00_process_completed_request(vha, rsp->req,
 695                                 handles[cnt]);
 696                 break;
 697
 698         case MBA_RESET:                 /* Reset */
 699                 ql_dbg(ql_dbg_async, vha, 0x5002,
 700                     "Asynchronous RESET.\n");
 701
 702                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 703                 break;
 704
 705         case MBA_SYSTEM_ERR:            /* System Error */
 706                 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ?
 707                         RD_REG_WORD(&reg24->mailbox7) : 0;
 708                 ql_log(ql_log_warn, vha, 0x5003,
 709                     "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
 710                     "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
 711
 712                 ha->isp_ops->fw_dump(vha, 1);
 713                 ha->flags.fw_init_done = 0;
 714                 QLA_FW_STOPPED(ha);
 715
 716                 if (IS_FWI2_CAPABLE(ha)) {
 717                         if (mb[1] == 0 && mb[2] == 0) {
 718                                 ql_log(ql_log_fatal, vha, 0x5004,
 719                                     "Unrecoverable Hardware Error: adapter "
 720                                     "marked OFFLINE!\n");
 721                                 vha->flags.online = 0;
 722                                 vha->device_flags |= DFLG_DEV_FAILED;
 723                         } else {
 724                                 /* Check to see if MPI timeout occurred */
 725                                 if ((mbx & MBX_3) && (ha->port_no == 0))
 726                                         set_bit(MPI_RESET_NEEDED,
 727                                             &vha->dpc_flags);
 728
 729                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 730                         }
 731                 } else if (mb[1] == 0) {
 732                         ql_log(ql_log_fatal, vha, 0x5005,
 733                             "Unrecoverable Hardware Error: adapter marked "
 734                             "OFFLINE!\n");
 735                         vha->flags.online = 0;
 736                         vha->device_flags |= DFLG_DEV_FAILED;
 737                 } else
 738                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 739                 break;
 740
 741         case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
 742                 ql_log(ql_log_warn, vha, 0x5006,
 743                     "ISP Request Transfer Error (%x).\n",  mb[1]);
 744
 745                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 746                 break;
 747
 748         case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
 749                 ql_log(ql_log_warn, vha, 0x5007,
 750                     "ISP Response Transfer Error (%x).\n", mb[1]);
 751
 752                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 753                 break;
 754
 755         case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
 756                 ql_dbg(ql_dbg_async, vha, 0x5008,
 757                     "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
 758                 break;
 759
 760         case MBA_LOOP_INIT_ERR:
 761                 ql_log(ql_log_warn, vha, 0x5090,
 762                     "LOOP INIT ERROR (%x).\n", mb[1]);
 763                 ha->isp_ops->fw_dump(vha, 1);
 764                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 765                 break;
 766
 767         case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
 768                 ha->flags.lip_ae = 1;
 769                 ha->flags.n2n_ae = 0;
 770
 771                 ql_dbg(ql_dbg_async, vha, 0x5009,
 772                     "LIP occurred (%x).\n", mb[1]);
 773
 774                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 775                         atomic_set(&vha->loop_state, LOOP_DOWN);
 776                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 777                         qla2x00_mark_all_devices_lost(vha, 1);
 778                 }
 779
 780                 if (vha->vp_idx) {
 781                         atomic_set(&vha->vp_state, VP_FAILED);
 782                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 783                 }
 784
 785                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 786                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 787
 788                 vha->flags.management_server_logged_in = 0;
 789                 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
 790                 break;
 791
 792         case MBA_LOOP_UP:               /* Loop Up Event */
 793                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
 794                         ha->link_data_rate = PORT_SPEED_1GB;
 795                 else
 796                         ha->link_data_rate = mb[1];
 797
 798                 ql_log(ql_log_info, vha, 0x500a,
 799                     "LOOP UP detected (%s Gbps).\n",
 800                     qla2x00_get_link_speed_str(ha, ha->link_data_rate));
 801
 802                 vha->flags.management_server_logged_in = 0;
 803                 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
 804
 805                 if (AUTO_DETECT_SFP_SUPPORT(vha)) {
 806                         set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
 807                         qla2xxx_wake_dpc(vha);
 808                 }
 809                 break;
 810
 811         case MBA_LOOP_DOWN:             /* Loop Down Event */
 812                 SAVE_TOPO(ha);
 813                 ha->flags.n2n_ae = 0;
 814                 ha->flags.lip_ae = 0;
 815                 ha->current_topology = 0;
 816
 817                 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
 818                         ? RD_REG_WORD(&reg24->mailbox4) : 0;
 819                 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(&reg82->mailbox_out[4])
 820                         : mbx;
 821                 ql_log(ql_log_info, vha, 0x500b,
 822                     "LOOP DOWN detected (%x %x %x %x).\n",
 823                     mb[1], mb[2], mb[3], mbx);
 824
 825                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 826                         atomic_set(&vha->loop_state, LOOP_DOWN);
 827                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 828                         /*
 829                          * In case of loop down, restore WWPN from
 830                          * NVRAM in case of FA-WWPN capable ISP
 831                          * Restore for Physical Port only
 832                          */
 833                         if (!vha->vp_idx) {
 834                                 if (ha->flags.fawwpn_enabled) {
 835                                         void *wwpn = ha->init_cb->port_name;
 836                                         memcpy(vha->port_name, wwpn, WWN_SIZE);
 837                                         fc_host_port_name(vha->host) =
 838                                             wwn_to_u64(vha->port_name);
 839                                         ql_dbg(ql_dbg_init + ql_dbg_verbose,
 840                                             vha, 0x00d8, "LOOP DOWN detected,"
 841                                             "restore WWPN %016llx\n",
 842                                             wwn_to_u64(vha->port_name));
 843                                 }
 844
 845                                 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
 846                         }
 847
 848                         vha->device_flags |= DFLG_NO_CABLE;
 849                         qla2x00_mark_all_devices_lost(vha, 1);
 850                 }
 851
 852                 if (vha->vp_idx) {
 853                         atomic_set(&vha->vp_state, VP_FAILED);
 854                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 855                 }
 856
 857                 vha->flags.management_server_logged_in = 0;
 858                 ha->link_data_rate = PORT_SPEED_UNKNOWN;
 859                 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
 860                 break;
 861
 862         case MBA_LIP_RESET:             /* LIP reset occurred */
 863                 ql_dbg(ql_dbg_async, vha, 0x500c,
 864                     "LIP reset occurred (%x).\n", mb[1]);
 865
 866                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 867                         atomic_set(&vha->loop_state, LOOP_DOWN);
 868                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 869                         qla2x00_mark_all_devices_lost(vha, 1);
 870                 }
 871
 872                 if (vha->vp_idx) {
 873                         atomic_set(&vha->vp_state, VP_FAILED);
 874                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 875                 }
 876
 877                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 878
 879                 ha->operating_mode = LOOP;
 880                 vha->flags.management_server_logged_in = 0;
 881                 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
 882                 break;
 883
 884         /* case MBA_DCBX_COMPLETE: */
 885         case MBA_POINT_TO_POINT:        /* Point-to-Point */
 886                 ha->flags.lip_ae = 0;
 887                 ha->flags.n2n_ae = 1;
 888
 889                 if (IS_QLA2100(ha))
 890                         break;
 891
 892                 if (IS_CNA_CAPABLE(ha)) {
 893                         ql_dbg(ql_dbg_async, vha, 0x500d,
 894                             "DCBX Completed -- %04x %04x %04x.\n",
 895                             mb[1], mb[2], mb[3]);
 896                         if (ha->notify_dcbx_comp && !vha->vp_idx)
 897                                 complete(&ha->dcbx_comp);
 898
 899                 } else
 900                         ql_dbg(ql_dbg_async, vha, 0x500e,
 901                             "Asynchronous P2P MODE received.\n");
 902
 903                 /*
 904                  * Until there's a transition from loop down to loop up, treat
 905                  * this as loop down only.
 906                  */
 907                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 908                         atomic_set(&vha->loop_state, LOOP_DOWN);
 909                         if (!atomic_read(&vha->loop_down_timer))
 910                                 atomic_set(&vha->loop_down_timer,
 911                                     LOOP_DOWN_TIME);
 912                         qla2x00_mark_all_devices_lost(vha, 1);
 913                 }
 914
 915                 if (vha->vp_idx) {
 916                         atomic_set(&vha->vp_state, VP_FAILED);
 917                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 918                 }
 919
 920                 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
 921                         set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 922
 923                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 924                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 925
 926                 vha->flags.management_server_logged_in = 0;
 927                 break;
 928
 929         case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
 930                 if (IS_QLA2100(ha))
 931                         break;
 932
 933                 ql_dbg(ql_dbg_async, vha, 0x500f,
 934                     "Configuration change detected: value=%x.\n", mb[1]);
 935
 936                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 937                         atomic_set(&vha->loop_state, LOOP_DOWN);
 938                         if (!atomic_read(&vha->loop_down_timer))
 939                                 atomic_set(&vha->loop_down_timer,
 940                                     LOOP_DOWN_TIME);
 941                         qla2x00_mark_all_devices_lost(vha, 1);
 942                 }
 943
 944                 if (vha->vp_idx) {
 945                         atomic_set(&vha->vp_state, VP_FAILED);
 946                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 947                 }
 948
 949                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 950                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 951                 break;
 952
 953         case MBA_PORT_UPDATE:           /* Port database update */
 954                 /*
 955                  * Handle only global and vn-port update events
 956                  *
 957                  * Relevant inputs:
 958                  * mb[1] = N_Port handle of changed port
 959                  * OR 0xffff for global event
 960                  * mb[2] = New login state
 961                  * 7 = Port logged out
 962                  * mb[3] = LSB is vp_idx, 0xff = all vps
 963                  *
 964                  * Skip processing if:
 965                  *       Event is global, vp_idx is NOT all vps,
 966                  *           vp_idx does not match
 967                  *       Event is not global, vp_idx does not match
 968                  */
 969                 if (IS_QLA2XXX_MIDTYPE(ha) &&
 970                     ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
 971                         (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
 972                         break;
 973
 974                 if (mb[2] == 0x7) {
 975                         ql_dbg(ql_dbg_async, vha, 0x5010,
 976                             "Port %s %04x %04x %04x.\n",
 977                             mb[1] == 0xffff ? "unavailable" : "logout",
 978                             mb[1], mb[2], mb[3]);
 979
 980                         if (mb[1] == 0xffff)
 981                                 goto global_port_update;
 982
 983                         if (mb[1] == NPH_SNS_LID(ha)) {
 984                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 985                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 986                                 break;
 987                         }
 988
 989                         /* use handle_cnt for loop id/nport handle */
 990                         if (IS_FWI2_CAPABLE(ha))
 991                                 handle_cnt = NPH_SNS;
 992                         else
 993                                 handle_cnt = SIMPLE_NAME_SERVER;
 994                         if (mb[1] == handle_cnt) {
 995                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 996                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 997                                 break;
 998                         }
 999
1000                         /* Port logout */
1001                         fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1002                         if (!fcport)
1003                                 break;
1004                         if (atomic_read(&fcport->state) != FCS_ONLINE)
1005                                 break;
1006                         ql_dbg(ql_dbg_async, vha, 0x508a,
1007                             "Marking port lost loopid=%04x portid=%06x.\n",
1008                             fcport->loop_id, fcport->d_id.b24);
1009                         if (qla_ini_mode_enabled(vha)) {
1010                                 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1011                                 fcport->logout_on_delete = 0;
1012                                 qlt_schedule_sess_for_deletion_lock(fcport);
1013                         }
1014                         break;
1015
1016 global_port_update:
1017                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1018                                 atomic_set(&vha->loop_state, LOOP_DOWN);
1019                                 atomic_set(&vha->loop_down_timer,
1020                                     LOOP_DOWN_TIME);
1021                                 vha->device_flags |= DFLG_NO_CABLE;
1022                                 qla2x00_mark_all_devices_lost(vha, 1);
1023                         }
1024
1025                         if (vha->vp_idx) {
1026                                 atomic_set(&vha->vp_state, VP_FAILED);
1027                                 fc_vport_set_state(vha->fc_vport,
1028                                     FC_VPORT_FAILED);
1029                                 qla2x00_mark_all_devices_lost(vha, 1);
1030                         }
1031
1032                         vha->flags.management_server_logged_in = 0;
1033                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1034                         break;
1035                 }
1036
1037                 /*
1038                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1039                  * event etc. earlier indicating loop is down) then process
1040                  * it.  Otherwise ignore it and Wait for RSCN to come in.
1041                  */
1042                 atomic_set(&vha->loop_down_timer, 0);
1043                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1044                         !ha->flags.n2n_ae  &&
1045                     atomic_read(&vha->loop_state) != LOOP_DEAD) {
1046                         ql_dbg(ql_dbg_async, vha, 0x5011,
1047                             "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1048                             mb[1], mb[2], mb[3]);
1049
1050                         qlt_async_event(mb[0], vha, mb);
1051                         break;
1052                 }
1053
1054                 ql_dbg(ql_dbg_async, vha, 0x5012,
1055                     "Port database changed %04x %04x %04x.\n",
1056                     mb[1], mb[2], mb[3]);
1057
1058                 /*
1059                  * Mark all devices as missing so we will login again.
1060                  */
1061                 atomic_set(&vha->loop_state, LOOP_UP);
1062                 vha->scan.scan_retry = 0;
1063
1064                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1065                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1066                 set_bit(VP_CONFIG_OK, &vha->vp_flags);
1067
1068                 qlt_async_event(mb[0], vha, mb);
1069                 break;
1070
1071         case MBA_RSCN_UPDATE:           /* State Change Registration */
1072                 /* Check if the Vport has issued a SCR */
1073                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1074                         break;
1075                 /* Only handle SCNs for our Vport index. */
1076                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1077                         break;
1078
1079                 ql_dbg(ql_dbg_async, vha, 0x5013,
1080                     "RSCN database changed -- %04x %04x %04x.\n",
1081                     mb[1], mb[2], mb[3]);
1082
1083                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1084                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1085                                 | vha->d_id.b.al_pa;
1086                 if (rscn_entry == host_pid) {
1087                         ql_dbg(ql_dbg_async, vha, 0x5014,
1088                             "Ignoring RSCN update to local host "
1089                             "port ID (%06x).\n", host_pid);
1090                         break;
1091                 }
1092
1093                 /* Ignore reserved bits from RSCN-payload. */
1094                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1095
1096                 /* Skip RSCNs for virtual ports on the same physical port */
1097                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1098                         break;
1099
1100                 atomic_set(&vha->loop_down_timer, 0);
1101                 vha->flags.management_server_logged_in = 0;
1102                 {
1103                         struct event_arg ea;
1104
1105                         memset(&ea, 0, sizeof(ea));
1106                         ea.event = FCME_RSCN;
1107                         ea.id.b24 = rscn_entry;
1108                         ea.id.b.rsvd_1 = rscn_entry >> 24;
1109                         qla2x00_fcport_event_handler(vha, &ea);
1110                         qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1111                 }
1112                 break;
1113         /* case MBA_RIO_RESPONSE: */
1114         case MBA_ZIO_RESPONSE:
1115                 ql_dbg(ql_dbg_async, vha, 0x5015,
1116                     "[R|Z]IO update completion.\n");
1117
1118                 if (IS_FWI2_CAPABLE(ha))
1119                         qla24xx_process_response_queue(vha, rsp);
1120                 else
1121                         qla2x00_process_response_queue(rsp);
1122                 break;
1123
1124         case MBA_DISCARD_RND_FRAME:
1125                 ql_dbg(ql_dbg_async, vha, 0x5016,
1126                     "Discard RND Frame -- %04x %04x %04x.\n",
1127                     mb[1], mb[2], mb[3]);
1128                 break;
1129
1130         case MBA_TRACE_NOTIFICATION:
1131                 ql_dbg(ql_dbg_async, vha, 0x5017,
1132                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1133                 break;
1134
1135         case MBA_ISP84XX_ALERT:
1136                 ql_dbg(ql_dbg_async, vha, 0x5018,
1137                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1138                     mb[1], mb[2], mb[3]);
1139
1140                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1141                 switch (mb[1]) {
1142                 case A84_PANIC_RECOVERY:
1143                         ql_log(ql_log_info, vha, 0x5019,
1144                             "Alert 84XX: panic recovery %04x %04x.\n",
1145                             mb[2], mb[3]);
1146                         break;
1147                 case A84_OP_LOGIN_COMPLETE:
1148                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1149                         ql_log(ql_log_info, vha, 0x501a,
1150                             "Alert 84XX: firmware version %x.\n",
1151                             ha->cs84xx->op_fw_version);
1152                         break;
1153                 case A84_DIAG_LOGIN_COMPLETE:
1154                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1155                         ql_log(ql_log_info, vha, 0x501b,
1156                             "Alert 84XX: diagnostic firmware version %x.\n",
1157                             ha->cs84xx->diag_fw_version);
1158                         break;
1159                 case A84_GOLD_LOGIN_COMPLETE:
1160                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1161                         ha->cs84xx->fw_update = 1;
1162                         ql_log(ql_log_info, vha, 0x501c,
1163                             "Alert 84XX: gold firmware version %x.\n",
1164                             ha->cs84xx->gold_fw_version);
1165                         break;
1166                 default:
1167                         ql_log(ql_log_warn, vha, 0x501d,
1168                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1169                             mb[1], mb[2], mb[3]);
1170                 }
1171                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1172                 break;
1173         case MBA_DCBX_START:
1174                 ql_dbg(ql_dbg_async, vha, 0x501e,
1175                     "DCBX Started -- %04x %04x %04x.\n",
1176                     mb[1], mb[2], mb[3]);
1177                 break;
1178         case MBA_DCBX_PARAM_UPDATE:
1179                 ql_dbg(ql_dbg_async, vha, 0x501f,
1180                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1181                     mb[1], mb[2], mb[3]);
1182                 break;
1183         case MBA_FCF_CONF_ERR:
1184                 ql_dbg(ql_dbg_async, vha, 0x5020,
1185                     "FCF Configuration Error -- %04x %04x %04x.\n",
1186                     mb[1], mb[2], mb[3]);
1187                 break;
1188         case MBA_IDC_NOTIFY:
1189                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1190                         mb[4] = RD_REG_WORD(&reg24->mailbox4);
1191                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1192                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1193                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1194                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1195                                 /*
1196                                  * Extend loop down timer since port is active.
1197                                  */
1198                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1199                                         atomic_set(&vha->loop_down_timer,
1200                                             LOOP_DOWN_TIME);
1201                                 qla2xxx_wake_dpc(vha);
1202                         }
1203                 }
1204                 /* fall through */
1205         case MBA_IDC_COMPLETE:
1206                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1207                         complete(&ha->lb_portup_comp);
1208                 /* Fallthru */
1209         case MBA_IDC_TIME_EXT:
1210                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1211                     IS_QLA8044(ha))
1212                         qla81xx_idc_event(vha, mb[0], mb[1]);
1213                 break;
1214
1215         case MBA_IDC_AEN:
1216                 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1217                 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1218                 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1219                 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1220                 qla83xx_handle_8200_aen(vha, mb);
1221                 break;
1222
1223         case MBA_DPORT_DIAGNOSTICS:
1224                 ql_dbg(ql_dbg_async, vha, 0x5052,
1225                     "D-Port Diagnostics: %04x result=%s\n",
1226                     mb[0],
1227                     mb[1] == 0 ? "start" :
1228                     mb[1] == 1 ? "done (pass)" :
1229                     mb[1] == 2 ? "done (error)" : "other");
1230                 break;
1231
1232         case MBA_TEMPERATURE_ALERT:
1233                 ql_dbg(ql_dbg_async, vha, 0x505e,
1234                     "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1235                 if (mb[1] == 0x12)
1236                         schedule_work(&ha->board_disable);
1237                 break;
1238
1239         case MBA_TRANS_INSERT:
1240                 ql_dbg(ql_dbg_async, vha, 0x5091,
1241                     "Transceiver Insertion: %04x\n", mb[1]);
1242                 break;
1243
1244         default:
1245                 ql_dbg(ql_dbg_async, vha, 0x5057,
1246                     "Unknown AEN:%04x %04x %04x %04x\n",
1247                     mb[0], mb[1], mb[2], mb[3]);
1248         }
1249
1250         qlt_async_event(mb[0], vha, mb);
1251
1252         if (!vha->vp_idx && ha->num_vhosts)
1253                 qla2x00_alert_all_vps(rsp, mb);
1254 }
1255
1256 /**
1257  * qla2x00_process_completed_request() - Process a Fast Post response.
1258  * @ha: SCSI driver HA context
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                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1823                         ql_log(ql_log_warn, fcport->vha, 0x503b,
1824                             "Async-%s error - hdl=%x not enough response(%d).\n",
1825                             type, sp->handle, sts->rsp_data_len);
1826                 } else if (sts->data[3]) {
1827                         ql_log(ql_log_warn, fcport->vha, 0x503c,
1828                             "Async-%s error - hdl=%x response(%x).\n",
1829                             type, sp->handle, sts->data[3]);
1830                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1831                 }
1832         }
1833
1834         if (iocb->u.tmf.data != QLA_SUCCESS)
1835                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1836                     (uint8_t *)sts, sizeof(*sts));
1837
1838         sp->done(sp, 0);
1839 }
1840
1841 static void
1842 qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
1843 {
1844         const char func[] = "NVME-IOCB";
1845         fc_port_t *fcport;
1846         srb_t *sp;
1847         struct srb_iocb *iocb;
1848         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1849         uint16_t        state_flags;
1850         struct nvmefc_fcp_req *fd;
1851         uint16_t        ret = 0;
1852         struct srb_iocb *nvme;
1853
1854         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1855         if (!sp)
1856                 return;
1857
1858         iocb = &sp->u.iocb_cmd;
1859         fcport = sp->fcport;
1860         iocb->u.nvme.comp_status = le16_to_cpu(sts->comp_status);
1861         state_flags  = le16_to_cpu(sts->state_flags);
1862         fd = iocb->u.nvme.desc;
1863         nvme = &sp->u.iocb_cmd;
1864
1865         if (unlikely(nvme->u.nvme.aen_op))
1866                 atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
1867
1868         /*
1869          * State flags: Bit 6 and 0.
1870          * If 0 is set, we don't care about 6.
1871          * both cases resp was dma'd to host buffer
1872          * if both are 0, that is good path case.
1873          * if six is set and 0 is clear, we need to
1874          * copy resp data from status iocb to resp buffer.
1875          */
1876         if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
1877                 iocb->u.nvme.rsp_pyld_len = 0;
1878         } else if ((state_flags & SF_FCP_RSP_DMA)) {
1879                 iocb->u.nvme.rsp_pyld_len = le16_to_cpu(sts->nvme_rsp_pyld_len);
1880         } else if (state_flags & SF_NVME_ERSP) {
1881                 uint32_t *inbuf, *outbuf;
1882                 uint16_t iter;
1883
1884                 inbuf = (uint32_t *)&sts->nvme_ersp_data;
1885                 outbuf = (uint32_t *)fd->rspaddr;
1886                 iocb->u.nvme.rsp_pyld_len = le16_to_cpu(sts->nvme_rsp_pyld_len);
1887                 iter = iocb->u.nvme.rsp_pyld_len >> 2;
1888                 for (; iter; iter--)
1889                         *outbuf++ = swab32(*inbuf++);
1890         } else { /* unhandled case */
1891             ql_log(ql_log_warn, fcport->vha, 0x503a,
1892                 "NVME-%s error. Unhandled state_flags of %x\n",
1893                 sp->name, state_flags);
1894         }
1895
1896         fd->transferred_length = fd->payload_length -
1897             le32_to_cpu(sts->residual_len);
1898
1899         /*
1900          * If transport error then Failure (HBA rejects request)
1901          * otherwise transport will handle.
1902          */
1903         if (sts->entry_status) {
1904                 ql_log(ql_log_warn, fcport->vha, 0x5038,
1905                     "NVME-%s error - hdl=%x entry-status(%x).\n",
1906                     sp->name, sp->handle, sts->entry_status);
1907                 ret = QLA_FUNCTION_FAILED;
1908         } else  {
1909                 switch (le16_to_cpu(sts->comp_status)) {
1910                         case CS_COMPLETE:
1911                                 ret = 0;
1912                         break;
1913
1914                         case CS_ABORTED:
1915                         case CS_RESET:
1916                         case CS_PORT_UNAVAILABLE:
1917                         case CS_PORT_LOGGED_OUT:
1918                         case CS_PORT_BUSY:
1919                                 ql_log(ql_log_warn, fcport->vha, 0x5060,
1920                                 "NVME-%s ERR Handling - hdl=%x completion status(%x) resid=%x  ox_id=%x\n",
1921                                 sp->name, sp->handle, sts->comp_status,
1922                                 le32_to_cpu(sts->residual_len), sts->ox_id);
1923                                 fd->transferred_length = fd->payload_length;
1924                                 ret = QLA_ABORTED;
1925                         break;
1926
1927                         default:
1928                                 ql_log(ql_log_warn, fcport->vha, 0x5060,
1929                                 "NVME-%s error - hdl=%x completion status(%x) resid=%x  ox_id=%x\n",
1930                                 sp->name, sp->handle, sts->comp_status,
1931                                 le32_to_cpu(sts->residual_len), sts->ox_id);
1932                                 ret = QLA_FUNCTION_FAILED;
1933                                 break;
1934                 }
1935         }
1936         sp->done(sp, ret);
1937 }
1938
1939 static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
1940     struct vp_ctrl_entry_24xx *vce)
1941 {
1942         const char func[] = "CTRLVP-IOCB";
1943         srb_t *sp;
1944         int rval = QLA_SUCCESS;
1945
1946         sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
1947         if (!sp)
1948                 return;
1949
1950         if (vce->entry_status != 0) {
1951                 ql_dbg(ql_dbg_vport, vha, 0x10c4,
1952                     "%s: Failed to complete IOCB -- error status (%x)\n",
1953                     sp->name, vce->entry_status);
1954                 rval = QLA_FUNCTION_FAILED;
1955         } else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
1956                 ql_dbg(ql_dbg_vport, vha, 0x10c5,
1957                     "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
1958                     sp->name, le16_to_cpu(vce->comp_status),
1959                     le16_to_cpu(vce->vp_idx_failed));
1960                 rval = QLA_FUNCTION_FAILED;
1961         } else {
1962                 ql_dbg(ql_dbg_vport, vha, 0x10c6,
1963                     "Done %s.\n", __func__);
1964         }
1965
1966         sp->rc = rval;
1967         sp->done(sp, rval);
1968 }
1969
1970 /**
1971  * qla2x00_process_response_queue() - Process response queue entries.
1972  * @ha: SCSI driver HA context
1973  */
1974 void
1975 qla2x00_process_response_queue(struct rsp_que *rsp)
1976 {
1977         struct scsi_qla_host *vha;
1978         struct qla_hw_data *ha = rsp->hw;
1979         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1980         sts_entry_t     *pkt;
1981         uint16_t        handle_cnt;
1982         uint16_t        cnt;
1983
1984         vha = pci_get_drvdata(ha->pdev);
1985
1986         if (!vha->flags.online)
1987                 return;
1988
1989         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1990                 pkt = (sts_entry_t *)rsp->ring_ptr;
1991
1992                 rsp->ring_index++;
1993                 if (rsp->ring_index == rsp->length) {
1994                         rsp->ring_index = 0;
1995                         rsp->ring_ptr = rsp->ring;
1996                 } else {
1997                         rsp->ring_ptr++;
1998                 }
1999
2000                 if (pkt->entry_status != 0) {
2001                         qla2x00_error_entry(vha, rsp, pkt);
2002                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2003                         wmb();
2004                         continue;
2005                 }
2006
2007                 switch (pkt->entry_type) {
2008                 case STATUS_TYPE:
2009                         qla2x00_status_entry(vha, rsp, pkt);
2010                         break;
2011                 case STATUS_TYPE_21:
2012                         handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
2013                         for (cnt = 0; cnt < handle_cnt; cnt++) {
2014                                 qla2x00_process_completed_request(vha, rsp->req,
2015                                     ((sts21_entry_t *)pkt)->handle[cnt]);
2016                         }
2017                         break;
2018                 case STATUS_TYPE_22:
2019                         handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
2020                         for (cnt = 0; cnt < handle_cnt; cnt++) {
2021                                 qla2x00_process_completed_request(vha, rsp->req,
2022                                     ((sts22_entry_t *)pkt)->handle[cnt]);
2023                         }
2024                         break;
2025                 case STATUS_CONT_TYPE:
2026                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2027                         break;
2028                 case MBX_IOCB_TYPE:
2029                         qla2x00_mbx_iocb_entry(vha, rsp->req,
2030                             (struct mbx_entry *)pkt);
2031                         break;
2032                 case CT_IOCB_TYPE:
2033                         qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2034                         break;
2035                 default:
2036                         /* Type Not Supported. */
2037                         ql_log(ql_log_warn, vha, 0x504a,
2038                             "Received unknown response pkt type %x "
2039                             "entry status=%x.\n",
2040                             pkt->entry_type, pkt->entry_status);
2041                         break;
2042                 }
2043                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2044                 wmb();
2045         }
2046
2047         /* Adjust ring index */
2048         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
2049 }
2050
2051 static inline void
2052 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2053                      uint32_t sense_len, struct rsp_que *rsp, int res)
2054 {
2055         struct scsi_qla_host *vha = sp->vha;
2056         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2057         uint32_t track_sense_len;
2058
2059         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2060                 sense_len = SCSI_SENSE_BUFFERSIZE;
2061
2062         SET_CMD_SENSE_LEN(sp, sense_len);
2063         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2064         track_sense_len = sense_len;
2065
2066         if (sense_len > par_sense_len)
2067                 sense_len = par_sense_len;
2068
2069         memcpy(cp->sense_buffer, sense_data, sense_len);
2070
2071         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2072         track_sense_len -= sense_len;
2073         SET_CMD_SENSE_LEN(sp, track_sense_len);
2074
2075         if (track_sense_len != 0) {
2076                 rsp->status_srb = sp;
2077                 cp->result = res;
2078         }
2079
2080         if (sense_len) {
2081                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
2082                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2083                     sp->vha->host_no, cp->device->id, cp->device->lun,
2084                     cp);
2085                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
2086                     cp->sense_buffer, sense_len);
2087         }
2088 }
2089
2090 struct scsi_dif_tuple {
2091         __be16 guard;       /* Checksum */
2092         __be16 app_tag;         /* APPL identifier */
2093         __be32 ref_tag;         /* Target LBA or indirect LBA */
2094 };
2095
2096 /*
2097  * Checks the guard or meta-data for the type of error
2098  * detected by the HBA. In case of errors, we set the
2099  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
2100  * to indicate to the kernel that the HBA detected error.
2101  */
2102 static inline int
2103 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
2104 {
2105         struct scsi_qla_host *vha = sp->vha;
2106         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2107         uint8_t         *ap = &sts24->data[12];
2108         uint8_t         *ep = &sts24->data[20];
2109         uint32_t        e_ref_tag, a_ref_tag;
2110         uint16_t        e_app_tag, a_app_tag;
2111         uint16_t        e_guard, a_guard;
2112
2113         /*
2114          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
2115          * would make guard field appear at offset 2
2116          */
2117         a_guard   = le16_to_cpu(*(uint16_t *)(ap + 2));
2118         a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
2119         a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
2120         e_guard   = le16_to_cpu(*(uint16_t *)(ep + 2));
2121         e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
2122         e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
2123
2124         ql_dbg(ql_dbg_io, vha, 0x3023,
2125             "iocb(s) %p Returned STATUS.\n", sts24);
2126
2127         ql_dbg(ql_dbg_io, vha, 0x3024,
2128             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
2129             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
2130             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
2131             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
2132             a_app_tag, e_app_tag, a_guard, e_guard);
2133
2134         /*
2135          * Ignore sector if:
2136          * For type     3: ref & app tag is all 'f's
2137          * For type 0,1,2: app tag is all 'f's
2138          */
2139         if ((a_app_tag == T10_PI_APP_ESCAPE) &&
2140             ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
2141              (a_ref_tag == T10_PI_REF_ESCAPE))) {
2142                 uint32_t blocks_done, resid;
2143                 sector_t lba_s = scsi_get_lba(cmd);
2144
2145                 /* 2TB boundary case covered automatically with this */
2146                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
2147
2148                 resid = scsi_bufflen(cmd) - (blocks_done *
2149                     cmd->device->sector_size);
2150
2151                 scsi_set_resid(cmd, resid);
2152                 cmd->result = DID_OK << 16;
2153
2154                 /* Update protection tag */
2155                 if (scsi_prot_sg_count(cmd)) {
2156                         uint32_t i, j = 0, k = 0, num_ent;
2157                         struct scatterlist *sg;
2158                         struct t10_pi_tuple *spt;
2159
2160                         /* Patch the corresponding protection tags */
2161                         scsi_for_each_prot_sg(cmd, sg,
2162                             scsi_prot_sg_count(cmd), i) {
2163                                 num_ent = sg_dma_len(sg) / 8;
2164                                 if (k + num_ent < blocks_done) {
2165                                         k += num_ent;
2166                                         continue;
2167                                 }
2168                                 j = blocks_done - k - 1;
2169                                 k = blocks_done;
2170                                 break;
2171                         }
2172
2173                         if (k != blocks_done) {
2174                                 ql_log(ql_log_warn, vha, 0x302f,
2175                                     "unexpected tag values tag:lba=%x:%llx)\n",
2176                                     e_ref_tag, (unsigned long long)lba_s);
2177                                 return 1;
2178                         }
2179
2180                         spt = page_address(sg_page(sg)) + sg->offset;
2181                         spt += j;
2182
2183                         spt->app_tag = T10_PI_APP_ESCAPE;
2184                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
2185                                 spt->ref_tag = T10_PI_REF_ESCAPE;
2186                 }
2187
2188                 return 0;
2189         }
2190
2191         /* check guard */
2192         if (e_guard != a_guard) {
2193                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2194                     0x10, 0x1);
2195                 set_driver_byte(cmd, DRIVER_SENSE);
2196                 set_host_byte(cmd, DID_ABORT);
2197                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
2198                 return 1;
2199         }
2200
2201         /* check ref tag */
2202         if (e_ref_tag != a_ref_tag) {
2203                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2204                     0x10, 0x3);
2205                 set_driver_byte(cmd, DRIVER_SENSE);
2206                 set_host_byte(cmd, DID_ABORT);
2207                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
2208                 return 1;
2209         }
2210
2211         /* check appl tag */
2212         if (e_app_tag != a_app_tag) {
2213                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2214                     0x10, 0x2);
2215                 set_driver_byte(cmd, DRIVER_SENSE);
2216                 set_host_byte(cmd, DID_ABORT);
2217                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
2218                 return 1;
2219         }
2220
2221         return 1;
2222 }
2223
2224 static void
2225 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2226                                   struct req_que *req, uint32_t index)
2227 {
2228         struct qla_hw_data *ha = vha->hw;
2229         srb_t *sp;
2230         uint16_t        comp_status;
2231         uint16_t        scsi_status;
2232         uint16_t thread_id;
2233         uint32_t rval = EXT_STATUS_OK;
2234         struct bsg_job *bsg_job = NULL;
2235         struct fc_bsg_request *bsg_request;
2236         struct fc_bsg_reply *bsg_reply;
2237         sts_entry_t *sts;
2238         struct sts_entry_24xx *sts24;
2239         sts = (sts_entry_t *) pkt;
2240         sts24 = (struct sts_entry_24xx *) pkt;
2241
2242         /* Validate handle. */
2243         if (index >= req->num_outstanding_cmds) {
2244                 ql_log(ql_log_warn, vha, 0x70af,
2245                     "Invalid SCSI completion handle 0x%x.\n", index);
2246                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2247                 return;
2248         }
2249
2250         sp = req->outstanding_cmds[index];
2251         if (!sp) {
2252                 ql_log(ql_log_warn, vha, 0x70b0,
2253                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
2254                     req->id, index);
2255
2256                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2257                 return;
2258         }
2259
2260         /* Free outstanding command slot. */
2261         req->outstanding_cmds[index] = NULL;
2262         bsg_job = sp->u.bsg_job;
2263         bsg_request = bsg_job->request;
2264         bsg_reply = bsg_job->reply;
2265
2266         if (IS_FWI2_CAPABLE(ha)) {
2267                 comp_status = le16_to_cpu(sts24->comp_status);
2268                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2269         } else {
2270                 comp_status = le16_to_cpu(sts->comp_status);
2271                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2272         }
2273
2274         thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
2275         switch (comp_status) {
2276         case CS_COMPLETE:
2277                 if (scsi_status == 0) {
2278                         bsg_reply->reply_payload_rcv_len =
2279                                         bsg_job->reply_payload.payload_len;
2280                         vha->qla_stats.input_bytes +=
2281                                 bsg_reply->reply_payload_rcv_len;
2282                         vha->qla_stats.input_requests++;
2283                         rval = EXT_STATUS_OK;
2284                 }
2285                 goto done;
2286
2287         case CS_DATA_OVERRUN:
2288                 ql_dbg(ql_dbg_user, vha, 0x70b1,
2289                     "Command completed with data overrun thread_id=%d\n",
2290                     thread_id);
2291                 rval = EXT_STATUS_DATA_OVERRUN;
2292                 break;
2293
2294         case CS_DATA_UNDERRUN:
2295                 ql_dbg(ql_dbg_user, vha, 0x70b2,
2296                     "Command completed with data underrun thread_id=%d\n",
2297                     thread_id);
2298                 rval = EXT_STATUS_DATA_UNDERRUN;
2299                 break;
2300         case CS_BIDIR_RD_OVERRUN:
2301                 ql_dbg(ql_dbg_user, vha, 0x70b3,
2302                     "Command completed with read data overrun thread_id=%d\n",
2303                     thread_id);
2304                 rval = EXT_STATUS_DATA_OVERRUN;
2305                 break;
2306
2307         case CS_BIDIR_RD_WR_OVERRUN:
2308                 ql_dbg(ql_dbg_user, vha, 0x70b4,
2309                     "Command completed with read and write data overrun "
2310                     "thread_id=%d\n", thread_id);
2311                 rval = EXT_STATUS_DATA_OVERRUN;
2312                 break;
2313
2314         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
2315                 ql_dbg(ql_dbg_user, vha, 0x70b5,
2316                     "Command completed with read data over and write data "
2317                     "underrun thread_id=%d\n", thread_id);
2318                 rval = EXT_STATUS_DATA_OVERRUN;
2319                 break;
2320
2321         case CS_BIDIR_RD_UNDERRUN:
2322                 ql_dbg(ql_dbg_user, vha, 0x70b6,
2323                     "Command completed with read data underrun "
2324                     "thread_id=%d\n", thread_id);
2325                 rval = EXT_STATUS_DATA_UNDERRUN;
2326                 break;
2327
2328         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
2329                 ql_dbg(ql_dbg_user, vha, 0x70b7,
2330                     "Command completed with read data under and write data "
2331                     "overrun thread_id=%d\n", thread_id);
2332                 rval = EXT_STATUS_DATA_UNDERRUN;
2333                 break;
2334
2335         case CS_BIDIR_RD_WR_UNDERRUN:
2336                 ql_dbg(ql_dbg_user, vha, 0x70b8,
2337                     "Command completed with read and write data underrun "
2338                     "thread_id=%d\n", thread_id);
2339                 rval = EXT_STATUS_DATA_UNDERRUN;
2340                 break;
2341
2342         case CS_BIDIR_DMA:
2343                 ql_dbg(ql_dbg_user, vha, 0x70b9,
2344                     "Command completed with data DMA error thread_id=%d\n",
2345                     thread_id);
2346                 rval = EXT_STATUS_DMA_ERR;
2347                 break;
2348
2349         case CS_TIMEOUT:
2350                 ql_dbg(ql_dbg_user, vha, 0x70ba,
2351                     "Command completed with timeout thread_id=%d\n",
2352                     thread_id);
2353                 rval = EXT_STATUS_TIMEOUT;
2354                 break;
2355         default:
2356                 ql_dbg(ql_dbg_user, vha, 0x70bb,
2357                     "Command completed with completion status=0x%x "
2358                     "thread_id=%d\n", comp_status, thread_id);
2359                 rval = EXT_STATUS_ERR;
2360                 break;
2361         }
2362         bsg_reply->reply_payload_rcv_len = 0;
2363
2364 done:
2365         /* Return the vendor specific reply to API */
2366         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2367         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2368         /* Always return DID_OK, bsg will send the vendor specific response
2369          * in this case only */
2370         sp->done(sp, DID_OK << 6);
2371
2372 }
2373
2374 /**
2375  * qla2x00_status_entry() - Process a Status IOCB entry.
2376  * @ha: SCSI driver HA context
2377  * @pkt: Entry pointer
2378  */
2379 static void
2380 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2381 {
2382         srb_t           *sp;
2383         fc_port_t       *fcport;
2384         struct scsi_cmnd *cp;
2385         sts_entry_t *sts;
2386         struct sts_entry_24xx *sts24;
2387         uint16_t        comp_status;
2388         uint16_t        scsi_status;
2389         uint16_t        ox_id;
2390         uint8_t         lscsi_status;
2391         int32_t         resid;
2392         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2393             fw_resid_len;
2394         uint8_t         *rsp_info, *sense_data;
2395         struct qla_hw_data *ha = vha->hw;
2396         uint32_t handle;
2397         uint16_t que;
2398         struct req_que *req;
2399         int logit = 1;
2400         int res = 0;
2401         uint16_t state_flags = 0;
2402         uint16_t retry_delay = 0;
2403
2404         sts = (sts_entry_t *) pkt;
2405         sts24 = (struct sts_entry_24xx *) pkt;
2406         if (IS_FWI2_CAPABLE(ha)) {
2407                 comp_status = le16_to_cpu(sts24->comp_status);
2408                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2409                 state_flags = le16_to_cpu(sts24->state_flags);
2410         } else {
2411                 comp_status = le16_to_cpu(sts->comp_status);
2412                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2413         }
2414         handle = (uint32_t) LSW(sts->handle);
2415         que = MSW(sts->handle);
2416         req = ha->req_q_map[que];
2417
2418         /* Check for invalid queue pointer */
2419         if (req == NULL ||
2420             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2421                 ql_dbg(ql_dbg_io, vha, 0x3059,
2422                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2423                     "que=%u.\n", sts->handle, req, que);
2424                 return;
2425         }
2426
2427         /* Validate handle. */
2428         if (handle < req->num_outstanding_cmds) {
2429                 sp = req->outstanding_cmds[handle];
2430                 if (!sp) {
2431                         ql_dbg(ql_dbg_io, vha, 0x3075,
2432                             "%s(%ld): Already returned command for status handle (0x%x).\n",
2433                             __func__, vha->host_no, sts->handle);
2434                         return;
2435                 }
2436         } else {
2437                 ql_dbg(ql_dbg_io, vha, 0x3017,
2438                     "Invalid status handle, out of range (0x%x).\n",
2439                     sts->handle);
2440
2441                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2442                         if (IS_P3P_TYPE(ha))
2443                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2444                         else
2445                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2446                         qla2xxx_wake_dpc(vha);
2447                 }
2448                 return;
2449         }
2450
2451         if (sp->cmd_type != TYPE_SRB) {
2452                 req->outstanding_cmds[handle] = NULL;
2453                 ql_dbg(ql_dbg_io, vha, 0x3015,
2454                     "Unknown sp->cmd_type %x %p).\n",
2455                     sp->cmd_type, sp);
2456                 return;
2457         }
2458
2459         /* NVME completion. */
2460         if (sp->type == SRB_NVME_CMD) {
2461                 qla24xx_nvme_iocb_entry(vha, req, pkt);
2462                 return;
2463         }
2464
2465         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2466                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2467                 return;
2468         }
2469
2470         /* Task Management completion. */
2471         if (sp->type == SRB_TM_CMD) {
2472                 qla24xx_tm_iocb_entry(vha, req, pkt);
2473                 return;
2474         }
2475
2476         /* Fast path completion. */
2477         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2478                 qla2x00_process_completed_request(vha, req, handle);
2479
2480                 return;
2481         }
2482
2483         req->outstanding_cmds[handle] = NULL;
2484         cp = GET_CMD_SP(sp);
2485         if (cp == NULL) {
2486                 ql_dbg(ql_dbg_io, vha, 0x3018,
2487                     "Command already returned (0x%x/%p).\n",
2488                     sts->handle, sp);
2489
2490                 return;
2491         }
2492
2493         lscsi_status = scsi_status & STATUS_MASK;
2494
2495         fcport = sp->fcport;
2496
2497         ox_id = 0;
2498         sense_len = par_sense_len = rsp_info_len = resid_len =
2499             fw_resid_len = 0;
2500         if (IS_FWI2_CAPABLE(ha)) {
2501                 if (scsi_status & SS_SENSE_LEN_VALID)
2502                         sense_len = le32_to_cpu(sts24->sense_len);
2503                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2504                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2505                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2506                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
2507                 if (comp_status == CS_DATA_UNDERRUN)
2508                         fw_resid_len = le32_to_cpu(sts24->residual_len);
2509                 rsp_info = sts24->data;
2510                 sense_data = sts24->data;
2511                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2512                 ox_id = le16_to_cpu(sts24->ox_id);
2513                 par_sense_len = sizeof(sts24->data);
2514                 /* Valid values of the retry delay timer are 0x1-0xffef */
2515                 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1)
2516                         retry_delay = sts24->retry_delay;
2517         } else {
2518                 if (scsi_status & SS_SENSE_LEN_VALID)
2519                         sense_len = le16_to_cpu(sts->req_sense_length);
2520                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2521                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2522                 resid_len = le32_to_cpu(sts->residual_length);
2523                 rsp_info = sts->rsp_info;
2524                 sense_data = sts->req_sense_data;
2525                 par_sense_len = sizeof(sts->req_sense_data);
2526         }
2527
2528         /* Check for any FCP transport errors. */
2529         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2530                 /* Sense data lies beyond any FCP RESPONSE data. */
2531                 if (IS_FWI2_CAPABLE(ha)) {
2532                         sense_data += rsp_info_len;
2533                         par_sense_len -= rsp_info_len;
2534                 }
2535                 if (rsp_info_len > 3 && rsp_info[3]) {
2536                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2537                             "FCP I/O protocol failure (0x%x/0x%x).\n",
2538                             rsp_info_len, rsp_info[3]);
2539
2540                         res = DID_BUS_BUSY << 16;
2541                         goto out;
2542                 }
2543         }
2544
2545         /* Check for overrun. */
2546         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2547             scsi_status & SS_RESIDUAL_OVER)
2548                 comp_status = CS_DATA_OVERRUN;
2549
2550         /*
2551          * Check retry_delay_timer value if we receive a busy or
2552          * queue full.
2553          */
2554         if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2555             lscsi_status == SAM_STAT_BUSY)
2556                 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2557
2558         /*
2559          * Based on Host and scsi status generate status code for Linux
2560          */
2561         switch (comp_status) {
2562         case CS_COMPLETE:
2563         case CS_QUEUE_FULL:
2564                 if (scsi_status == 0) {
2565                         res = DID_OK << 16;
2566                         break;
2567                 }
2568                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2569                         resid = resid_len;
2570                         scsi_set_resid(cp, resid);
2571
2572                         if (!lscsi_status &&
2573                             ((unsigned)(scsi_bufflen(cp) - resid) <
2574                              cp->underflow)) {
2575                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2576                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
2577                                     resid, scsi_bufflen(cp));
2578
2579                                 res = DID_ERROR << 16;
2580                                 break;
2581                         }
2582                 }
2583                 res = DID_OK << 16 | lscsi_status;
2584
2585                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2586                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2587                             "QUEUE FULL detected.\n");
2588                         break;
2589                 }
2590                 logit = 0;
2591                 if (lscsi_status != SS_CHECK_CONDITION)
2592                         break;
2593
2594                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2595                 if (!(scsi_status & SS_SENSE_LEN_VALID))
2596                         break;
2597
2598                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2599                     rsp, res);
2600                 break;
2601
2602         case CS_DATA_UNDERRUN:
2603                 /* Use F/W calculated residual length. */
2604                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2605                 scsi_set_resid(cp, resid);
2606                 if (scsi_status & SS_RESIDUAL_UNDER) {
2607                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2608                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2609                                     "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
2610                                     resid, scsi_bufflen(cp));
2611
2612                                 res = DID_ERROR << 16 | lscsi_status;
2613                                 goto check_scsi_status;
2614                         }
2615
2616                         if (!lscsi_status &&
2617                             ((unsigned)(scsi_bufflen(cp) - resid) <
2618                             cp->underflow)) {
2619                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2620                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
2621                                     resid, scsi_bufflen(cp));
2622
2623                                 res = DID_ERROR << 16;
2624                                 break;
2625                         }
2626                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2627                             lscsi_status != SAM_STAT_BUSY) {
2628                         /*
2629                          * scsi status of task set and busy are considered to be
2630                          * task not completed.
2631                          */
2632
2633                         ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2634                             "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
2635                             resid, scsi_bufflen(cp));
2636
2637                         res = DID_ERROR << 16 | lscsi_status;
2638                         goto check_scsi_status;
2639                 } else {
2640                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2641                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2642                             scsi_status, lscsi_status);
2643                 }
2644
2645                 res = DID_OK << 16 | lscsi_status;
2646                 logit = 0;
2647
2648 check_scsi_status:
2649                 /*
2650                  * Check to see if SCSI Status is non zero. If so report SCSI
2651                  * Status.
2652                  */
2653                 if (lscsi_status != 0) {
2654                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2655                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2656                                     "QUEUE FULL detected.\n");
2657                                 logit = 1;
2658                                 break;
2659                         }
2660                         if (lscsi_status != SS_CHECK_CONDITION)
2661                                 break;
2662
2663                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2664                         if (!(scsi_status & SS_SENSE_LEN_VALID))
2665                                 break;
2666
2667                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
2668                             sense_len, rsp, res);
2669                 }
2670                 break;
2671
2672         case CS_PORT_LOGGED_OUT:
2673         case CS_PORT_CONFIG_CHG:
2674         case CS_PORT_BUSY:
2675         case CS_INCOMPLETE:
2676         case CS_PORT_UNAVAILABLE:
2677         case CS_TIMEOUT:
2678         case CS_RESET:
2679
2680                 /*
2681                  * We are going to have the fc class block the rport
2682                  * while we try to recover so instruct the mid layer
2683                  * to requeue until the class decides how to handle this.
2684                  */
2685                 res = DID_TRANSPORT_DISRUPTED << 16;
2686
2687                 if (comp_status == CS_TIMEOUT) {
2688                         if (IS_FWI2_CAPABLE(ha))
2689                                 break;
2690                         else if ((le16_to_cpu(sts->status_flags) &
2691                             SF_LOGOUT_SENT) == 0)
2692                                 break;
2693                 }
2694
2695                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2696                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2697                                 "Port to be marked lost on fcport=%02x%02x%02x, current "
2698                                 "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
2699                                 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2700                                 port_state_str[atomic_read(&fcport->state)],
2701                                 comp_status);
2702
2703                         qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2704                         qlt_schedule_sess_for_deletion_lock(fcport);
2705                 }
2706
2707                 break;
2708
2709         case CS_ABORTED:
2710                 res = DID_RESET << 16;
2711                 break;
2712
2713         case CS_DIF_ERROR:
2714                 logit = qla2x00_handle_dif_error(sp, sts24);
2715                 res = cp->result;
2716                 break;
2717
2718         case CS_TRANSPORT:
2719                 res = DID_ERROR << 16;
2720
2721                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2722                         break;
2723
2724                 if (state_flags & BIT_4)
2725                         scmd_printk(KERN_WARNING, cp,
2726                             "Unsupported device '%s' found.\n",
2727                             cp->device->vendor);
2728                 break;
2729
2730         default:
2731                 res = DID_ERROR << 16;
2732                 break;
2733         }
2734
2735 out:
2736         if (logit)
2737                 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2738                     "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2739                     "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2740                     "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
2741                     comp_status, scsi_status, res, vha->host_no,
2742                     cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2743                     fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2744                     cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2745                     resid_len, fw_resid_len, sp, cp);
2746
2747         if (rsp->status_srb == NULL)
2748                 sp->done(sp, res);
2749 }
2750
2751 /**
2752  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2753  * @ha: SCSI driver HA context
2754  * @pkt: Entry pointer
2755  *
2756  * Extended sense data.
2757  */
2758 static void
2759 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2760 {
2761         uint8_t sense_sz = 0;
2762         struct qla_hw_data *ha = rsp->hw;
2763         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2764         srb_t *sp = rsp->status_srb;
2765         struct scsi_cmnd *cp;
2766         uint32_t sense_len;
2767         uint8_t *sense_ptr;
2768
2769         if (!sp || !GET_CMD_SENSE_LEN(sp))
2770                 return;
2771
2772         sense_len = GET_CMD_SENSE_LEN(sp);
2773         sense_ptr = GET_CMD_SENSE_PTR(sp);
2774
2775         cp = GET_CMD_SP(sp);
2776         if (cp == NULL) {
2777                 ql_log(ql_log_warn, vha, 0x3025,
2778                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2779
2780                 rsp->status_srb = NULL;
2781                 return;
2782         }
2783
2784         if (sense_len > sizeof(pkt->data))
2785                 sense_sz = sizeof(pkt->data);
2786         else
2787                 sense_sz = sense_len;
2788
2789         /* Move sense data. */
2790         if (IS_FWI2_CAPABLE(ha))
2791                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2792         memcpy(sense_ptr, pkt->data, sense_sz);
2793         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2794                 sense_ptr, sense_sz);
2795
2796         sense_len -= sense_sz;
2797         sense_ptr += sense_sz;
2798
2799         SET_CMD_SENSE_PTR(sp, sense_ptr);
2800         SET_CMD_SENSE_LEN(sp, sense_len);
2801
2802         /* Place command on done queue. */
2803         if (sense_len == 0) {
2804                 rsp->status_srb = NULL;
2805                 sp->done(sp, cp->result);
2806         }
2807 }
2808
2809 /**
2810  * qla2x00_error_entry() - Process an error entry.
2811  * @ha: SCSI driver HA context
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                 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2850                 if (sp) {
2851                         sp->done(sp, res);
2852                         return 0;
2853                 }
2854                 break;
2855
2856         case ABTS_RESP_24XX:
2857         case CTIO_TYPE7:
2858         case CTIO_CRC2:
2859         default:
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  * @ha: 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         mboxes = (1 << ha->mbx_count) - 1;
2884         if (!ha->mcp)
2885                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2886         else
2887                 mboxes = ha->mcp->in_mb;
2888
2889         /* Load return mailbox registers. */
2890         ha->flags.mbox_int = 1;
2891         ha->mailbox_out[0] = mb0;
2892         mboxes >>= 1;
2893         wptr = (uint16_t __iomem *)&reg->mailbox1;
2894
2895         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2896                 if (mboxes & BIT_0)
2897                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2898
2899                 mboxes >>= 1;
2900                 wptr++;
2901         }
2902 }
2903
2904 static void
2905 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2906         struct abort_entry_24xx *pkt)
2907 {
2908         const char func[] = "ABT_IOCB";
2909         srb_t *sp;
2910         struct srb_iocb *abt;
2911
2912         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2913         if (!sp)
2914                 return;
2915
2916         abt = &sp->u.iocb_cmd;
2917         abt->u.abt.comp_status = le16_to_cpu(pkt->nport_handle);
2918         sp->done(sp, 0);
2919 }
2920
2921 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
2922     struct pt_ls4_request *pkt, struct req_que *req)
2923 {
2924         srb_t *sp;
2925         const char func[] = "LS4_IOCB";
2926         uint16_t comp_status;
2927
2928         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2929         if (!sp)
2930                 return;
2931
2932         comp_status = le16_to_cpu(pkt->status);
2933         sp->done(sp, comp_status);
2934 }
2935
2936 /**
2937  * qla24xx_process_response_queue() - Process response queue entries.
2938  * @ha: SCSI driver HA context
2939  */
2940 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2941         struct rsp_que *rsp)
2942 {
2943         struct sts_entry_24xx *pkt;
2944         struct qla_hw_data *ha = vha->hw;
2945
2946         if (!ha->flags.fw_started)
2947                 return;
2948
2949         if (rsp->qpair->cpuid != smp_processor_id())
2950                 qla_cpu_update(rsp->qpair, smp_processor_id());
2951
2952         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2953                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2954
2955                 rsp->ring_index++;
2956                 if (rsp->ring_index == rsp->length) {
2957                         rsp->ring_index = 0;
2958                         rsp->ring_ptr = rsp->ring;
2959                 } else {
2960                         rsp->ring_ptr++;
2961                 }
2962
2963                 if (pkt->entry_status != 0) {
2964                         if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
2965                                 goto process_err;
2966
2967                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2968                         wmb();
2969                         continue;
2970                 }
2971 process_err:
2972
2973                 switch (pkt->entry_type) {
2974                 case STATUS_TYPE:
2975                         qla2x00_status_entry(vha, rsp, pkt);
2976                         break;
2977                 case STATUS_CONT_TYPE:
2978                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2979                         break;
2980                 case VP_RPT_ID_IOCB_TYPE:
2981                         qla24xx_report_id_acquisition(vha,
2982                             (struct vp_rpt_id_entry_24xx *)pkt);
2983                         break;
2984                 case LOGINOUT_PORT_IOCB_TYPE:
2985                         qla24xx_logio_entry(vha, rsp->req,
2986                             (struct logio_entry_24xx *)pkt);
2987                         break;
2988                 case CT_IOCB_TYPE:
2989                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2990                         break;
2991                 case ELS_IOCB_TYPE:
2992                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2993                         break;
2994                 case ABTS_RECV_24XX:
2995                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
2996                                 /* ensure that the ATIO queue is empty */
2997                                 qlt_handle_abts_recv(vha, rsp,
2998                                     (response_t *)pkt);
2999                                 break;
3000                         } else {
3001                                 qlt_24xx_process_atio_queue(vha, 1);
3002                         }
3003                         /* fall through */
3004                 case ABTS_RESP_24XX:
3005                 case CTIO_TYPE7:
3006                 case CTIO_CRC2:
3007                         qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
3008                         break;
3009                 case PT_LS4_REQUEST:
3010                         qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
3011                             rsp->req);
3012                         break;
3013                 case NOTIFY_ACK_TYPE:
3014                         if (pkt->handle == QLA_TGT_SKIP_HANDLE)
3015                                 qlt_response_pkt_all_vps(vha, rsp,
3016                                     (response_t *)pkt);
3017                         else
3018                                 qla24xxx_nack_iocb_entry(vha, rsp->req,
3019                                         (struct nack_to_isp *)pkt);
3020                         break;
3021                 case MARKER_TYPE:
3022                         /* Do nothing in this case, this check is to prevent it
3023                          * from falling into default case
3024                          */
3025                         break;
3026                 case ABORT_IOCB_TYPE:
3027                         qla24xx_abort_iocb_entry(vha, rsp->req,
3028                             (struct abort_entry_24xx *)pkt);
3029                         break;
3030                 case MBX_IOCB_TYPE:
3031                         qla24xx_mbx_iocb_entry(vha, rsp->req,
3032                             (struct mbx_24xx_entry *)pkt);
3033                         break;
3034                 case VP_CTRL_IOCB_TYPE:
3035                         qla_ctrlvp_completed(vha, rsp->req,
3036                             (struct vp_ctrl_entry_24xx *)pkt);
3037                         break;
3038                 default:
3039                         /* Type Not Supported. */
3040                         ql_dbg(ql_dbg_async, vha, 0x5042,
3041                             "Received unknown response pkt type %x "
3042                             "entry status=%x.\n",
3043                             pkt->entry_type, pkt->entry_status);
3044                         break;
3045                 }
3046                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3047                 wmb();
3048         }
3049
3050         /* Adjust ring index */
3051         if (IS_P3P_TYPE(ha)) {
3052                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
3053                 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
3054         } else {
3055                 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
3056         }
3057 }
3058
3059 static void
3060 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
3061 {
3062         int rval;
3063         uint32_t cnt;
3064         struct qla_hw_data *ha = vha->hw;
3065         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3066
3067         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3068             !IS_QLA27XX(ha))
3069                 return;
3070
3071         rval = QLA_SUCCESS;
3072         WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
3073         RD_REG_DWORD(&reg->iobase_addr);
3074         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
3075         for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
3076             rval == QLA_SUCCESS; cnt--) {
3077                 if (cnt) {
3078                         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
3079                         udelay(10);
3080                 } else
3081                         rval = QLA_FUNCTION_TIMEOUT;
3082         }
3083         if (rval == QLA_SUCCESS)
3084                 goto next_test;
3085
3086         rval = QLA_SUCCESS;
3087         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
3088         for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
3089             rval == QLA_SUCCESS; cnt--) {
3090                 if (cnt) {
3091                         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
3092                         udelay(10);
3093                 } else
3094                         rval = QLA_FUNCTION_TIMEOUT;
3095         }
3096         if (rval != QLA_SUCCESS)
3097                 goto done;
3098
3099 next_test:
3100         if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
3101                 ql_log(ql_log_info, vha, 0x504c,
3102                     "Additional code -- 0x55AA.\n");
3103
3104 done:
3105         WRT_REG_DWORD(&reg->iobase_window, 0x0000);
3106         RD_REG_DWORD(&reg->iobase_window);
3107 }
3108
3109 /**
3110  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
3111  * @irq:
3112  * @dev_id: SCSI driver HA context
3113  *
3114  * Called by system whenever the host adapter generates an interrupt.
3115  *
3116  * Returns handled flag.
3117  */
3118 irqreturn_t
3119 qla24xx_intr_handler(int irq, void *dev_id)
3120 {
3121         scsi_qla_host_t *vha;
3122         struct qla_hw_data *ha;
3123         struct device_reg_24xx __iomem *reg;
3124         int             status;
3125         unsigned long   iter;
3126         uint32_t        stat;
3127         uint32_t        hccr;
3128         uint16_t        mb[8];
3129         struct rsp_que *rsp;
3130         unsigned long   flags;
3131
3132         rsp = (struct rsp_que *) dev_id;
3133         if (!rsp) {
3134                 ql_log(ql_log_info, NULL, 0x5059,
3135                     "%s: NULL response queue pointer.\n", __func__);
3136                 return IRQ_NONE;
3137         }
3138
3139         ha = rsp->hw;
3140         reg = &ha->iobase->isp24;
3141         status = 0;
3142
3143         if (unlikely(pci_channel_offline(ha->pdev)))
3144                 return IRQ_HANDLED;
3145
3146         spin_lock_irqsave(&ha->hardware_lock, flags);
3147         vha = pci_get_drvdata(ha->pdev);
3148         for (iter = 50; iter--; ) {
3149                 stat = RD_REG_DWORD(&reg->host_status);
3150                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3151                         break;
3152                 if (stat & HSRX_RISC_PAUSED) {
3153                         if (unlikely(pci_channel_offline(ha->pdev)))
3154                                 break;
3155
3156                         hccr = RD_REG_DWORD(&reg->hccr);
3157
3158                         ql_log(ql_log_warn, vha, 0x504b,
3159                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3160                             hccr);
3161
3162                         qla2xxx_check_risc_status(vha);
3163
3164                         ha->isp_ops->fw_dump(vha, 1);
3165                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3166                         break;
3167                 } else if ((stat & HSRX_RISC_INT) == 0)
3168                         break;
3169
3170                 switch (stat & 0xff) {
3171                 case INTR_ROM_MB_SUCCESS:
3172                 case INTR_ROM_MB_FAILED:
3173                 case INTR_MB_SUCCESS:
3174                 case INTR_MB_FAILED:
3175                         qla24xx_mbx_completion(vha, MSW(stat));
3176                         status |= MBX_INTERRUPT;
3177
3178                         break;
3179                 case INTR_ASYNC_EVENT:
3180                         mb[0] = MSW(stat);
3181                         mb[1] = RD_REG_WORD(&reg->mailbox1);
3182                         mb[2] = RD_REG_WORD(&reg->mailbox2);
3183                         mb[3] = RD_REG_WORD(&reg->mailbox3);
3184                         qla2x00_async_event(vha, rsp, mb);
3185                         break;
3186                 case INTR_RSP_QUE_UPDATE:
3187                 case INTR_RSP_QUE_UPDATE_83XX:
3188                         qla24xx_process_response_queue(vha, rsp);
3189                         break;
3190                 case INTR_ATIO_QUE_UPDATE_27XX:
3191                 case INTR_ATIO_QUE_UPDATE:{
3192                         unsigned long flags2;
3193                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
3194                         qlt_24xx_process_atio_queue(vha, 1);
3195                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
3196                         break;
3197                 }
3198                 case INTR_ATIO_RSP_QUE_UPDATE: {
3199                         unsigned long flags2;
3200                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
3201                         qlt_24xx_process_atio_queue(vha, 1);
3202                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
3203
3204                         qla24xx_process_response_queue(vha, rsp);
3205                         break;
3206                 }
3207                 default:
3208                         ql_dbg(ql_dbg_async, vha, 0x504f,
3209                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
3210                         break;
3211                 }
3212                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3213                 RD_REG_DWORD_RELAXED(&reg->hccr);
3214                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
3215                         ndelay(3500);
3216         }
3217         qla2x00_handle_mbx_completion(ha, status);
3218         spin_unlock_irqrestore(&ha->hardware_lock, flags);
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
3267         rsp = (struct rsp_que *) dev_id;
3268         if (!rsp) {
3269                 ql_log(ql_log_info, NULL, 0x505c,
3270                     "%s: NULL response queue pointer.\n", __func__);
3271                 return IRQ_NONE;
3272         }
3273         ha = rsp->hw;
3274         reg = &ha->iobase->isp24;
3275         status = 0;
3276
3277         spin_lock_irqsave(&ha->hardware_lock, flags);
3278         vha = pci_get_drvdata(ha->pdev);
3279         do {
3280                 stat = RD_REG_DWORD(&reg->host_status);
3281                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3282                         break;
3283                 if (stat & HSRX_RISC_PAUSED) {
3284                         if (unlikely(pci_channel_offline(ha->pdev)))
3285                                 break;
3286
3287                         hccr = RD_REG_DWORD(&reg->hccr);
3288
3289                         ql_log(ql_log_info, vha, 0x5050,
3290                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3291                             hccr);
3292
3293                         qla2xxx_check_risc_status(vha);
3294
3295                         ha->isp_ops->fw_dump(vha, 1);
3296                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3297                         break;
3298                 } else if ((stat & HSRX_RISC_INT) == 0)
3299                         break;
3300
3301                 switch (stat & 0xff) {
3302                 case INTR_ROM_MB_SUCCESS:
3303                 case INTR_ROM_MB_FAILED:
3304                 case INTR_MB_SUCCESS:
3305                 case INTR_MB_FAILED:
3306                         qla24xx_mbx_completion(vha, MSW(stat));
3307                         status |= MBX_INTERRUPT;
3308
3309                         break;
3310                 case INTR_ASYNC_EVENT:
3311                         mb[0] = MSW(stat);
3312                         mb[1] = RD_REG_WORD(&reg->mailbox1);
3313                         mb[2] = RD_REG_WORD(&reg->mailbox2);
3314                         mb[3] = RD_REG_WORD(&reg->mailbox3);
3315                         qla2x00_async_event(vha, rsp, mb);
3316                         break;
3317                 case INTR_RSP_QUE_UPDATE:
3318                 case INTR_RSP_QUE_UPDATE_83XX:
3319                         qla24xx_process_response_queue(vha, rsp);
3320                         break;
3321                 case INTR_ATIO_QUE_UPDATE_27XX:
3322                 case INTR_ATIO_QUE_UPDATE:{
3323                         unsigned long flags2;
3324                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
3325                         qlt_24xx_process_atio_queue(vha, 1);
3326                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
3327                         break;
3328                 }
3329                 case INTR_ATIO_RSP_QUE_UPDATE: {
3330                         unsigned long flags2;
3331                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
3332                         qlt_24xx_process_atio_queue(vha, 1);
3333                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
3334
3335                         qla24xx_process_response_queue(vha, rsp);
3336                         break;
3337                 }
3338                 default:
3339                         ql_dbg(ql_dbg_async, vha, 0x5051,
3340                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
3341                         break;
3342                 }
3343                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3344         } while (0);
3345         qla2x00_handle_mbx_completion(ha, status);
3346         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3347
3348         return IRQ_HANDLED;
3349 }
3350
3351 irqreturn_t
3352 qla2xxx_msix_rsp_q(int irq, void *dev_id)
3353 {
3354         struct qla_hw_data *ha;
3355         struct qla_qpair *qpair;
3356         struct device_reg_24xx __iomem *reg;
3357         unsigned long flags;
3358
3359         qpair = dev_id;
3360         if (!qpair) {
3361                 ql_log(ql_log_info, NULL, 0x505b,
3362                     "%s: NULL response queue pointer.\n", __func__);
3363                 return IRQ_NONE;
3364         }
3365         ha = qpair->hw;
3366
3367         /* Clear the interrupt, if enabled, for this response queue */
3368         if (unlikely(!ha->flags.disable_msix_handshake)) {
3369                 reg = &ha->iobase->isp24;
3370                 spin_lock_irqsave(&ha->hardware_lock, flags);
3371                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3372                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3373         }
3374
3375         queue_work(ha->wq, &qpair->q_work);
3376
3377         return IRQ_HANDLED;
3378 }
3379
3380 /* Interrupt handling helpers. */
3381
3382 struct qla_init_msix_entry {
3383         const char *name;
3384         irq_handler_t handler;
3385 };
3386
3387 static const struct qla_init_msix_entry msix_entries[] = {
3388         { "default", qla24xx_msix_default },
3389         { "rsp_q", qla24xx_msix_rsp_q },
3390         { "atio_q", qla83xx_msix_atio_q },
3391         { "qpair_multiq", qla2xxx_msix_rsp_q },
3392 };
3393
3394 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
3395         { "qla2xxx (default)", qla82xx_msix_default },
3396         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3397 };
3398
3399 static int
3400 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3401 {
3402         int i, ret;
3403         struct qla_msix_entry *qentry;
3404         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3405         int min_vecs = QLA_BASE_VECTORS;
3406         struct irq_affinity desc = {
3407                 .pre_vectors = QLA_BASE_VECTORS,
3408         };
3409
3410         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
3411             IS_ATIO_MSIX_CAPABLE(ha)) {
3412                 desc.pre_vectors++;
3413                 min_vecs++;
3414         }
3415
3416         if (USER_CTRL_IRQ(ha)) {
3417                 /* user wants to control IRQ setting for target mode */
3418                 ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
3419                     ha->msix_count, PCI_IRQ_MSIX);
3420         } else
3421                 ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
3422                     ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
3423                     &desc);
3424
3425         if (ret < 0) {
3426                 ql_log(ql_log_fatal, vha, 0x00c7,
3427                     "MSI-X: Failed to enable support, "
3428                     "giving   up -- %d/%d.\n",
3429                     ha->msix_count, ret);
3430                 goto msix_out;
3431         } else if (ret < ha->msix_count) {
3432                 ql_log(ql_log_warn, vha, 0x00c6,
3433                     "MSI-X: Failed to enable support "
3434                      "with %d vectors, using %d vectors.\n",
3435                     ha->msix_count, ret);
3436                 ha->msix_count = ret;
3437                 /* Recalculate queue values */
3438                 if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
3439                         ha->max_req_queues = ha->msix_count - 1;
3440
3441                         /* ATIOQ needs 1 vector. That's 1 less QPair */
3442                         if (QLA_TGT_MODE_ENABLED())
3443                                 ha->max_req_queues--;
3444
3445                         ha->max_rsp_queues = ha->max_req_queues;
3446
3447                         ha->max_qpairs = ha->max_req_queues - 1;
3448                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
3449                             "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
3450                 }
3451         }
3452         ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
3453                                 ha->msix_count, GFP_KERNEL);
3454         if (!ha->msix_entries) {
3455                 ql_log(ql_log_fatal, vha, 0x00c8,
3456                     "Failed to allocate memory for ha->msix_entries.\n");
3457                 ret = -ENOMEM;
3458                 goto msix_out;
3459         }
3460         ha->flags.msix_enabled = 1;
3461
3462         for (i = 0; i < ha->msix_count; i++) {
3463                 qentry = &ha->msix_entries[i];
3464                 qentry->vector = pci_irq_vector(ha->pdev, i);
3465                 qentry->entry = i;
3466                 qentry->have_irq = 0;
3467                 qentry->in_use = 0;
3468                 qentry->handle = NULL;
3469         }
3470
3471         /* Enable MSI-X vectors for the base queue */
3472         for (i = 0; i < QLA_BASE_VECTORS; i++) {
3473                 qentry = &ha->msix_entries[i];
3474                 qentry->handle = rsp;
3475                 rsp->msix = qentry;
3476                 scnprintf(qentry->name, sizeof(qentry->name),
3477                     "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
3478                 if (IS_P3P_TYPE(ha))
3479                         ret = request_irq(qentry->vector,
3480                                 qla82xx_msix_entries[i].handler,
3481                                 0, qla82xx_msix_entries[i].name, rsp);
3482                 else
3483                         ret = request_irq(qentry->vector,
3484                                 msix_entries[i].handler,
3485                                 0, qentry->name, rsp);
3486                 if (ret)
3487                         goto msix_register_fail;
3488                 qentry->have_irq = 1;
3489                 qentry->in_use = 1;
3490         }
3491
3492         /*
3493          * If target mode is enable, also request the vector for the ATIO
3494          * queue.
3495          */
3496         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
3497             IS_ATIO_MSIX_CAPABLE(ha)) {
3498                 qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
3499                 rsp->msix = qentry;
3500                 qentry->handle = rsp;
3501                 scnprintf(qentry->name, sizeof(qentry->name),
3502                     "qla2xxx%lu_%s", vha->host_no,
3503                     msix_entries[QLA_ATIO_VECTOR].name);
3504                 qentry->in_use = 1;
3505                 ret = request_irq(qentry->vector,
3506                         msix_entries[QLA_ATIO_VECTOR].handler,
3507                         0, qentry->name, rsp);
3508                 qentry->have_irq = 1;
3509         }
3510
3511 msix_register_fail:
3512         if (ret) {
3513                 ql_log(ql_log_fatal, vha, 0x00cb,
3514                     "MSI-X: unable to register handler -- %x/%d.\n",
3515                     qentry->vector, ret);
3516                 qla2x00_free_irqs(vha);
3517                 ha->mqenable = 0;
3518                 goto msix_out;
3519         }
3520
3521         /* Enable MSI-X vector for response queue update for queue 0 */
3522         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3523                 if (ha->msixbase && ha->mqiobase &&
3524                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3525                      ql2xmqsupport))
3526                         ha->mqenable = 1;
3527         } else
3528                 if (ha->mqiobase &&
3529                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3530                      ql2xmqsupport))
3531                         ha->mqenable = 1;
3532         ql_dbg(ql_dbg_multiq, vha, 0xc005,
3533             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3534             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3535         ql_dbg(ql_dbg_init, vha, 0x0055,
3536             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3537             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3538
3539 msix_out:
3540         return ret;
3541 }
3542
3543 int
3544 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3545 {
3546         int ret = QLA_FUNCTION_FAILED;
3547         device_reg_t *reg = ha->iobase;
3548         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3549
3550         /* If possible, enable MSI-X. */
3551         if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
3552             !IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
3553             !IS_QLAFX00(ha) && !IS_QLA27XX(ha)))
3554                 goto skip_msi;
3555
3556         if (ql2xenablemsix == 2)
3557                 goto skip_msix;
3558
3559         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3560                 (ha->pdev->subsystem_device == 0x7040 ||
3561                 ha->pdev->subsystem_device == 0x7041 ||
3562                 ha->pdev->subsystem_device == 0x1705)) {
3563                 ql_log(ql_log_warn, vha, 0x0034,
3564                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3565                         ha->pdev->subsystem_vendor,
3566                         ha->pdev->subsystem_device);
3567                 goto skip_msi;
3568         }
3569
3570         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3571                 ql_log(ql_log_warn, vha, 0x0035,
3572                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3573                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3574                 goto skip_msix;
3575         }
3576
3577         ret = qla24xx_enable_msix(ha, rsp);
3578         if (!ret) {
3579                 ql_dbg(ql_dbg_init, vha, 0x0036,
3580                     "MSI-X: Enabled (0x%X, 0x%X).\n",
3581                     ha->chip_revision, ha->fw_attributes);
3582                 goto clear_risc_ints;
3583         }
3584
3585 skip_msix:
3586
3587         ql_log(ql_log_info, vha, 0x0037,
3588             "Falling back-to MSI mode -%d.\n", ret);
3589
3590         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3591             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3592             !IS_QLA27XX(ha))
3593                 goto skip_msi;
3594
3595         ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
3596         if (!ret) {
3597                 ql_dbg(ql_dbg_init, vha, 0x0038,
3598                     "MSI: Enabled.\n");
3599                 ha->flags.msi_enabled = 1;
3600         } else
3601                 ql_log(ql_log_warn, vha, 0x0039,
3602                     "Falling back-to INTa mode -- %d.\n", ret);
3603 skip_msi:
3604
3605         /* Skip INTx on ISP82xx. */
3606         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3607                 return QLA_FUNCTION_FAILED;
3608
3609         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3610             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3611             QLA2XXX_DRIVER_NAME, rsp);
3612         if (ret) {
3613                 ql_log(ql_log_warn, vha, 0x003a,
3614                     "Failed to reserve interrupt %d already in use.\n",
3615                     ha->pdev->irq);
3616                 goto fail;
3617         } else if (!ha->flags.msi_enabled) {
3618                 ql_dbg(ql_dbg_init, vha, 0x0125,
3619                     "INTa mode: Enabled.\n");
3620                 ha->flags.mr_intr_valid = 1;
3621         }
3622
3623 clear_risc_ints:
3624         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3625                 goto fail;
3626
3627         spin_lock_irq(&ha->hardware_lock);
3628         WRT_REG_WORD(&reg->isp.semaphore, 0);
3629         spin_unlock_irq(&ha->hardware_lock);
3630
3631 fail:
3632         return ret;
3633 }
3634
3635 void
3636 qla2x00_free_irqs(scsi_qla_host_t *vha)
3637 {
3638         struct qla_hw_data *ha = vha->hw;
3639         struct rsp_que *rsp;
3640         struct qla_msix_entry *qentry;
3641         int i;
3642
3643         /*
3644          * We need to check that ha->rsp_q_map is valid in case we are called
3645          * from a probe failure context.
3646          */
3647         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3648                 goto free_irqs;
3649         rsp = ha->rsp_q_map[0];
3650
3651         if (ha->flags.msix_enabled) {
3652                 for (i = 0; i < ha->msix_count; i++) {
3653                         qentry = &ha->msix_entries[i];
3654                         if (qentry->have_irq) {
3655                                 irq_set_affinity_notifier(qentry->vector, NULL);
3656                                 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
3657                         }
3658                 }
3659                 kfree(ha->msix_entries);
3660                 ha->msix_entries = NULL;
3661                 ha->flags.msix_enabled = 0;
3662                 ql_dbg(ql_dbg_init, vha, 0x0042,
3663                         "Disabled MSI-X.\n");
3664         } else {
3665                 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
3666         }
3667
3668 free_irqs:
3669         pci_free_irq_vectors(ha->pdev);
3670 }
3671
3672 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
3673         struct qla_msix_entry *msix, int vector_type)
3674 {
3675         const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
3676         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3677         int ret;
3678
3679         scnprintf(msix->name, sizeof(msix->name),
3680             "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
3681         ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
3682         if (ret) {
3683                 ql_log(ql_log_fatal, vha, 0x00e6,
3684                     "MSI-X: Unable to register handler -- %x/%d.\n",
3685                     msix->vector, ret);
3686                 return ret;
3687         }
3688         msix->have_irq = 1;
3689         msix->handle = qpair;
3690         return ret;
3691 }