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         WARN_ON_ONCE(ha->mbx_count > 32);
 276         mboxes = (1ULL << ha->mbx_count) - 1;
 277         if (!ha->mcp)
 278                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 279         else
 280                 mboxes = ha->mcp->in_mb;
 281
 282         /* Load return mailbox registers. */
 283         ha->flags.mbox_int = 1;
 284         ha->mailbox_out[0] = mb0;
 285         mboxes >>= 1;
 286         wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
 287
 288         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 289                 if (IS_QLA2200(ha) && cnt == 8)
 290                         wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
 291                 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 292                         ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 293                 else if (mboxes & BIT_0)
 294                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
 295
 296                 wptr++;
 297                 mboxes >>= 1;
 298         }
 299 }
 300
 301 static void
 302 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 303 {
 304         static char *event[] =
 305                 { "Complete", "Request Notification", "Time Extension" };
 306         int rval;
 307         struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 308         struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 309         uint16_t __iomem *wptr;
 310         uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 311
 312         /* Seed data -- mailbox1 -> mailbox7. */
 313         if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 314                 wptr = (uint16_t __iomem *)&reg24->mailbox1;
 315         else if (IS_QLA8044(vha->hw))
 316                 wptr = (uint16_t __iomem *)&reg82->mailbox_out[1];
 317         else
 318                 return;
 319
 320         for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 321                 mb[cnt] = RD_REG_WORD(wptr);
 322
 323         ql_dbg(ql_dbg_async, vha, 0x5021,
 324             "Inter-Driver Communication %s -- "
 325             "%04x %04x %04x %04x %04x %04x %04x.\n",
 326             event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 327             mb[4], mb[5], mb[6]);
 328         switch (aen) {
 329         /* Handle IDC Error completion case. */
 330         case MBA_IDC_COMPLETE:
 331                 if (mb[1] >> 15) {
 332                         vha->hw->flags.idc_compl_status = 1;
 333                         if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 334                                 complete(&vha->hw->dcbx_comp);
 335                 }
 336                 break;
 337
 338         case MBA_IDC_NOTIFY:
 339                 /* Acknowledgement needed? [Notify && non-zero timeout]. */
 340                 timeout = (descr >> 8) & 0xf;
 341                 ql_dbg(ql_dbg_async, vha, 0x5022,
 342                     "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 343                     vha->host_no, event[aen & 0xff], timeout);
 344
 345                 if (!timeout)
 346                         return;
 347                 rval = qla2x00_post_idc_ack_work(vha, mb);
 348                 if (rval != QLA_SUCCESS)
 349                         ql_log(ql_log_warn, vha, 0x5023,
 350                             "IDC failed to post ACK.\n");
 351                 break;
 352         case MBA_IDC_TIME_EXT:
 353                 vha->hw->idc_extend_tmo = descr;
 354                 ql_dbg(ql_dbg_async, vha, 0x5087,
 355                     "%lu Inter-Driver Communication %s -- "
 356                     "Extend timeout by=%d.\n",
 357                     vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 358                 break;
 359         }
 360 }
 361
 362 #define LS_UNKNOWN      2
 363 const char *
 364 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 365 {
 366         static const char *const link_speeds[] = {
 367                 "1", "2", "?", "4", "8", "16", "32", "10"
 368         };
 369 #define QLA_LAST_SPEED  7
 370
 371         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 372                 return link_speeds[0];
 373         else if (speed == 0x13)
 374                 return link_speeds[QLA_LAST_SPEED];
 375         else if (speed < QLA_LAST_SPEED)
 376                 return link_speeds[speed];
 377         else
 378                 return link_speeds[LS_UNKNOWN];
 379 }
 380
 381 static void
 382 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 383 {
 384         struct qla_hw_data *ha = vha->hw;
 385
 386         /*
 387          * 8200 AEN Interpretation:
 388          * mb[0] = AEN code
 389          * mb[1] = AEN Reason code
 390          * mb[2] = LSW of Peg-Halt Status-1 Register
 391          * mb[6] = MSW of Peg-Halt Status-1 Register
 392          * mb[3] = LSW of Peg-Halt Status-2 register
 393          * mb[7] = MSW of Peg-Halt Status-2 register
 394          * mb[4] = IDC Device-State Register value
 395          * mb[5] = IDC Driver-Presence Register value
 396          */
 397         ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 398             "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 399             mb[0], mb[1], mb[2], mb[6]);
 400         ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 401             "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 402             "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 403
 404         if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 405                                 IDC_HEARTBEAT_FAILURE)) {
 406                 ha->flags.nic_core_hung = 1;
 407                 ql_log(ql_log_warn, vha, 0x5060,
 408                     "83XX: F/W Error Reported: Check if reset required.\n");
 409
 410                 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 411                         uint32_t protocol_engine_id, fw_err_code, err_level;
 412
 413                         /*
 414                          * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 415                          *  - PEG-Halt Status-1 Register:
 416                          *      (LSW = mb[2], MSW = mb[6])
 417                          *      Bits 0-7   = protocol-engine ID
 418                          *      Bits 8-28  = f/w error code
 419                          *      Bits 29-31 = Error-level
 420                          *          Error-level 0x1 = Non-Fatal error
 421                          *          Error-level 0x2 = Recoverable Fatal error
 422                          *          Error-level 0x4 = UnRecoverable Fatal error
 423                          *  - PEG-Halt Status-2 Register:
 424                          *      (LSW = mb[3], MSW = mb[7])
 425                          */
 426                         protocol_engine_id = (mb[2] & 0xff);
 427                         fw_err_code = (((mb[2] & 0xff00) >> 8) |
 428                             ((mb[6] & 0x1fff) << 8));
 429                         err_level = ((mb[6] & 0xe000) >> 13);
 430                         ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 431                             "Register: protocol_engine_id=0x%x "
 432                             "fw_err_code=0x%x err_level=0x%x.\n",
 433                             protocol_engine_id, fw_err_code, err_level);
 434                         ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 435                             "Register: 0x%x%x.\n", mb[7], mb[3]);
 436                         if (err_level == ERR_LEVEL_NON_FATAL) {
 437                                 ql_log(ql_log_warn, vha, 0x5063,
 438                                     "Not a fatal error, f/w has recovered itself.\n");
 439                         } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 440                                 ql_log(ql_log_fatal, vha, 0x5064,
 441                                     "Recoverable Fatal error: Chip reset "
 442                                     "required.\n");
 443                                 qla83xx_schedule_work(vha,
 444                                     QLA83XX_NIC_CORE_RESET);
 445                         } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 446                                 ql_log(ql_log_fatal, vha, 0x5065,
 447                                     "Unrecoverable Fatal error: Set FAILED "
 448                                     "state, reboot required.\n");
 449                                 qla83xx_schedule_work(vha,
 450                                     QLA83XX_NIC_CORE_UNRECOVERABLE);
 451                         }
 452                 }
 453
 454                 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 455                         uint16_t peg_fw_state, nw_interface_link_up;
 456                         uint16_t nw_interface_signal_detect, sfp_status;
 457                         uint16_t htbt_counter, htbt_monitor_enable;
 458                         uint16_t sfp_additional_info, sfp_multirate;
 459                         uint16_t sfp_tx_fault, link_speed, dcbx_status;
 460
 461                         /*
 462                          * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 463                          *  - PEG-to-FC Status Register:
 464                          *      (LSW = mb[2], MSW = mb[6])
 465                          *      Bits 0-7   = Peg-Firmware state
 466                          *      Bit 8      = N/W Interface Link-up
 467                          *      Bit 9      = N/W Interface signal detected
 468                          *      Bits 10-11 = SFP Status
 469                          *        SFP Status 0x0 = SFP+ transceiver not expected
 470                          *        SFP Status 0x1 = SFP+ transceiver not present
 471                          *        SFP Status 0x2 = SFP+ transceiver invalid
 472                          *        SFP Status 0x3 = SFP+ transceiver present and
 473                          *        valid
 474                          *      Bits 12-14 = Heartbeat Counter
 475                          *      Bit 15     = Heartbeat Monitor Enable
 476                          *      Bits 16-17 = SFP Additional Info
 477                          *        SFP info 0x0 = Unregocnized transceiver for
 478                          *        Ethernet
 479                          *        SFP info 0x1 = SFP+ brand validation failed
 480                          *        SFP info 0x2 = SFP+ speed validation failed
 481                          *        SFP info 0x3 = SFP+ access error
 482                          *      Bit 18     = SFP Multirate
 483                          *      Bit 19     = SFP Tx Fault
 484                          *      Bits 20-22 = Link Speed
 485                          *      Bits 23-27 = Reserved
 486                          *      Bits 28-30 = DCBX Status
 487                          *        DCBX Status 0x0 = DCBX Disabled
 488                          *        DCBX Status 0x1 = DCBX Enabled
 489                          *        DCBX Status 0x2 = DCBX Exchange error
 490                          *      Bit 31     = Reserved
 491                          */
 492                         peg_fw_state = (mb[2] & 0x00ff);
 493                         nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 494                         nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 495                         sfp_status = ((mb[2] & 0x0c00) >> 10);
 496                         htbt_counter = ((mb[2] & 0x7000) >> 12);
 497                         htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 498                         sfp_additional_info = (mb[6] & 0x0003);
 499                         sfp_multirate = ((mb[6] & 0x0004) >> 2);
 500                         sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 501                         link_speed = ((mb[6] & 0x0070) >> 4);
 502                         dcbx_status = ((mb[6] & 0x7000) >> 12);
 503
 504                         ql_log(ql_log_warn, vha, 0x5066,
 505                             "Peg-to-Fc Status Register:\n"
 506                             "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 507                             "nw_interface_signal_detect=0x%x"
 508                             "\nsfp_statis=0x%x.\n ", peg_fw_state,
 509                             nw_interface_link_up, nw_interface_signal_detect,
 510                             sfp_status);
 511                         ql_log(ql_log_warn, vha, 0x5067,
 512                             "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 513                             "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
 514                             htbt_counter, htbt_monitor_enable,
 515                             sfp_additional_info, sfp_multirate);
 516                         ql_log(ql_log_warn, vha, 0x5068,
 517                             "sfp_tx_fault=0x%x, link_state=0x%x, "
 518                             "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 519                             dcbx_status);
 520
 521                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 522                 }
 523
 524                 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 525                         ql_log(ql_log_warn, vha, 0x5069,
 526                             "Heartbeat Failure encountered, chip reset "
 527                             "required.\n");
 528
 529                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 530                 }
 531         }
 532
 533         if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 534                 ql_log(ql_log_info, vha, 0x506a,
 535                     "IDC Device-State changed = 0x%x.\n", mb[4]);
 536                 if (ha->flags.nic_core_reset_owner)
 537                         return;
 538                 qla83xx_schedule_work(vha, MBA_IDC_AEN);
 539         }
 540 }
 541
 542 int
 543 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 544 {
 545         struct qla_hw_data *ha = vha->hw;
 546         scsi_qla_host_t *vp;
 547         uint32_t vp_did;
 548         unsigned long flags;
 549         int ret = 0;
 550
 551         if (!ha->num_vhosts)
 552                 return ret;
 553
 554         spin_lock_irqsave(&ha->vport_slock, flags);
 555         list_for_each_entry(vp, &ha->vp_list, list) {
 556                 vp_did = vp->d_id.b24;
 557                 if (vp_did == rscn_entry) {
 558                         ret = 1;
 559                         break;
 560                 }
 561         }
 562         spin_unlock_irqrestore(&ha->vport_slock, flags);
 563
 564         return ret;
 565 }
 566
 567 fc_port_t *
 568 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
 569 {
 570         fc_port_t *f, *tf;
 571
 572         f = tf = NULL;
 573         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
 574                 if (f->loop_id == loop_id)
 575                         return f;
 576         return NULL;
 577 }
 578
 579 fc_port_t *
 580 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
 581 {
 582         fc_port_t *f, *tf;
 583
 584         f = tf = NULL;
 585         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 586                 if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
 587                         if (incl_deleted)
 588                                 return f;
 589                         else if (f->deleted == 0)
 590                                 return f;
 591                 }
 592         }
 593         return NULL;
 594 }
 595
 596 fc_port_t *
 597 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
 598         u8 incl_deleted)
 599 {
 600         fc_port_t *f, *tf;
 601
 602         f = tf = NULL;
 603         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 604                 if (f->d_id.b24 == id->b24) {
 605                         if (incl_deleted)
 606                                 return f;
 607                         else if (f->deleted == 0)
 608                                 return f;
 609                 }
 610         }
 611         return NULL;
 612 }
 613
 614 /**
 615  * qla2x00_async_event() - Process aynchronous events.
 616  * @ha: SCSI driver HA context
 617  * @mb: Mailbox registers (0 - 3)
 618  */
 619 void
 620 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
 621 {
 622         uint16_t        handle_cnt;
 623         uint16_t        cnt, mbx;
 624         uint32_t        handles[5];
 625         struct qla_hw_data *ha = vha->hw;
 626         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 627         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
 628         struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 629         uint32_t        rscn_entry, host_pid;
 630         unsigned long   flags;
 631         fc_port_t       *fcport = NULL;
 632
 633         /* Setup to process RIO completion. */
 634         handle_cnt = 0;
 635         if (IS_CNA_CAPABLE(ha))
 636                 goto skip_rio;
 637         switch (mb[0]) {
 638         case MBA_SCSI_COMPLETION:
 639                 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
 640                 handle_cnt = 1;
 641                 break;
 642         case MBA_CMPLT_1_16BIT:
 643                 handles[0] = mb[1];
 644                 handle_cnt = 1;
 645                 mb[0] = MBA_SCSI_COMPLETION;
 646                 break;
 647         case MBA_CMPLT_2_16BIT:
 648                 handles[0] = mb[1];
 649                 handles[1] = mb[2];
 650                 handle_cnt = 2;
 651                 mb[0] = MBA_SCSI_COMPLETION;
 652                 break;
 653         case MBA_CMPLT_3_16BIT:
 654                 handles[0] = mb[1];
 655                 handles[1] = mb[2];
 656                 handles[2] = mb[3];
 657                 handle_cnt = 3;
 658                 mb[0] = MBA_SCSI_COMPLETION;
 659                 break;
 660         case MBA_CMPLT_4_16BIT:
 661                 handles[0] = mb[1];
 662                 handles[1] = mb[2];
 663                 handles[2] = mb[3];
 664                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 665                 handle_cnt = 4;
 666                 mb[0] = MBA_SCSI_COMPLETION;
 667                 break;
 668         case MBA_CMPLT_5_16BIT:
 669                 handles[0] = mb[1];
 670                 handles[1] = mb[2];
 671                 handles[2] = mb[3];
 672                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 673                 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
 674                 handle_cnt = 5;
 675                 mb[0] = MBA_SCSI_COMPLETION;
 676                 break;
 677         case MBA_CMPLT_2_32BIT:
 678                 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
 679                 handles[1] = le32_to_cpu(
 680                     ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
 681                     RD_MAILBOX_REG(ha, reg, 6));
 682                 handle_cnt = 2;
 683                 mb[0] = MBA_SCSI_COMPLETION;
 684                 break;
 685         default:
 686                 break;
 687         }
 688 skip_rio:
 689         switch (mb[0]) {
 690         case MBA_SCSI_COMPLETION:       /* Fast Post */
 691                 if (!vha->flags.online)
 692                         break;
 693
 694                 for (cnt = 0; cnt < handle_cnt; cnt++)
 695                         qla2x00_process_completed_request(vha, rsp->req,
 696                                 handles[cnt]);
 697                 break;
 698
 699         case MBA_RESET:                 /* Reset */
 700                 ql_dbg(ql_dbg_async, vha, 0x5002,
 701                     "Asynchronous RESET.\n");
 702
 703                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 704                 break;
 705
 706         case MBA_SYSTEM_ERR:            /* System Error */
 707                 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ?
 708                         RD_REG_WORD(&reg24->mailbox7) : 0;
 709                 ql_log(ql_log_warn, vha, 0x5003,
 710                     "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
 711                     "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
 712
 713                 ha->isp_ops->fw_dump(vha, 1);
 714                 ha->flags.fw_init_done = 0;
 715                 QLA_FW_STOPPED(ha);
 716
 717                 if (IS_FWI2_CAPABLE(ha)) {
 718                         if (mb[1] == 0 && mb[2] == 0) {
 719                                 ql_log(ql_log_fatal, vha, 0x5004,
 720                                     "Unrecoverable Hardware Error: adapter "
 721                                     "marked OFFLINE!\n");
 722                                 vha->flags.online = 0;
 723                                 vha->device_flags |= DFLG_DEV_FAILED;
 724                         } else {
 725                                 /* Check to see if MPI timeout occurred */
 726                                 if ((mbx & MBX_3) && (ha->port_no == 0))
 727                                         set_bit(MPI_RESET_NEEDED,
 728                                             &vha->dpc_flags);
 729
 730                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 731                         }
 732                 } else if (mb[1] == 0) {
 733                         ql_log(ql_log_fatal, vha, 0x5005,
 734                             "Unrecoverable Hardware Error: adapter marked "
 735                             "OFFLINE!\n");
 736                         vha->flags.online = 0;
 737                         vha->device_flags |= DFLG_DEV_FAILED;
 738                 } else
 739                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 740                 break;
 741
 742         case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
 743                 ql_log(ql_log_warn, vha, 0x5006,
 744                     "ISP Request Transfer Error (%x).\n",  mb[1]);
 745
 746                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 747                 break;
 748
 749         case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
 750                 ql_log(ql_log_warn, vha, 0x5007,
 751                     "ISP Response Transfer Error (%x).\n", mb[1]);
 752
 753                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 754                 break;
 755
 756         case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
 757                 ql_dbg(ql_dbg_async, vha, 0x5008,
 758                     "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
 759                 break;
 760
 761         case MBA_LOOP_INIT_ERR:
 762                 ql_log(ql_log_warn, vha, 0x5090,
 763                     "LOOP INIT ERROR (%x).\n", mb[1]);
 764                 ha->isp_ops->fw_dump(vha, 1);
 765                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 766                 break;
 767
 768         case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
 769                 ha->flags.lip_ae = 1;
 770                 ha->flags.n2n_ae = 0;
 771
 772                 ql_dbg(ql_dbg_async, vha, 0x5009,
 773                     "LIP occurred (%x).\n", mb[1]);
 774
 775                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 776                         atomic_set(&vha->loop_state, LOOP_DOWN);
 777                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 778                         qla2x00_mark_all_devices_lost(vha, 1);
 779                 }
 780
 781                 if (vha->vp_idx) {
 782                         atomic_set(&vha->vp_state, VP_FAILED);
 783                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 784                 }
 785
 786                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 787                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 788
 789                 vha->flags.management_server_logged_in = 0;
 790                 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
 791                 break;
 792
 793         case MBA_LOOP_UP:               /* Loop Up Event */
 794                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
 795                         ha->link_data_rate = PORT_SPEED_1GB;
 796                 else
 797                         ha->link_data_rate = mb[1];
 798
 799                 ql_log(ql_log_info, vha, 0x500a,
 800                     "LOOP UP detected (%s Gbps).\n",
 801                     qla2x00_get_link_speed_str(ha, ha->link_data_rate));
 802
 803                 vha->flags.management_server_logged_in = 0;
 804                 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
 805
 806                 if (AUTO_DETECT_SFP_SUPPORT(vha)) {
 807                         set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
 808                         qla2xxx_wake_dpc(vha);
 809                 }
 810                 break;
 811
 812         case MBA_LOOP_DOWN:             /* Loop Down Event */
 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                 ha->flags.gpsc_supported = 1;
 927                 vha->flags.management_server_logged_in = 0;
 928                 break;
 929
 930         case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
 931                 if (IS_QLA2100(ha))
 932                         break;
 933
 934                 ql_dbg(ql_dbg_async, vha, 0x500f,
 935                     "Configuration change detected: value=%x.\n", mb[1]);
 936
 937                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 938                         atomic_set(&vha->loop_state, LOOP_DOWN);
 939                         if (!atomic_read(&vha->loop_down_timer))
 940                                 atomic_set(&vha->loop_down_timer,
 941                                     LOOP_DOWN_TIME);
 942                         qla2x00_mark_all_devices_lost(vha, 1);
 943                 }
 944
 945                 if (vha->vp_idx) {
 946                         atomic_set(&vha->vp_state, VP_FAILED);
 947                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 948                 }
 949
 950                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 951                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 952                 break;
 953
 954         case MBA_PORT_UPDATE:           /* Port database update */
 955                 /*
 956                  * Handle only global and vn-port update events
 957                  *
 958                  * Relevant inputs:
 959                  * mb[1] = N_Port handle of changed port
 960                  * OR 0xffff for global event
 961                  * mb[2] = New login state
 962                  * 7 = Port logged out
 963                  * mb[3] = LSB is vp_idx, 0xff = all vps
 964                  *
 965                  * Skip processing if:
 966                  *       Event is global, vp_idx is NOT all vps,
 967                  *           vp_idx does not match
 968                  *       Event is not global, vp_idx does not match
 969                  */
 970                 if (IS_QLA2XXX_MIDTYPE(ha) &&
 971                     ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
 972                         (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
 973                         break;
 974
 975                 if (mb[2] == 0x7) {
 976                         ql_dbg(ql_dbg_async, vha, 0x5010,
 977                             "Port %s %04x %04x %04x.\n",
 978                             mb[1] == 0xffff ? "unavailable" : "logout",
 979                             mb[1], mb[2], mb[3]);
 980
 981                         if (mb[1] == 0xffff)
 982                                 goto global_port_update;
 983
 984                         if (mb[1] == NPH_SNS_LID(ha)) {
 985                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 986                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 987                                 break;
 988                         }
 989
 990                         /* use handle_cnt for loop id/nport handle */
 991                         if (IS_FWI2_CAPABLE(ha))
 992                                 handle_cnt = NPH_SNS;
 993                         else
 994                                 handle_cnt = SIMPLE_NAME_SERVER;
 995                         if (mb[1] == handle_cnt) {
 996                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 997                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 998                                 break;
 999                         }
1000
1001                         /* Port logout */
1002                         fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1003                         if (!fcport)
1004                                 break;
1005                         if (atomic_read(&fcport->state) != FCS_ONLINE)
1006                                 break;
1007                         ql_dbg(ql_dbg_async, vha, 0x508a,
1008                             "Marking port lost loopid=%04x portid=%06x.\n",
1009                             fcport->loop_id, fcport->d_id.b24);
1010                         if (qla_ini_mode_enabled(vha)) {
1011                                 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1012                                 fcport->logout_on_delete = 0;
1013                                 qlt_schedule_sess_for_deletion_lock(fcport);
1014                         }
1015                         break;
1016
1017 global_port_update:
1018                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1019                                 atomic_set(&vha->loop_state, LOOP_DOWN);
1020                                 atomic_set(&vha->loop_down_timer,
1021                                     LOOP_DOWN_TIME);
1022                                 vha->device_flags |= DFLG_NO_CABLE;
1023                                 qla2x00_mark_all_devices_lost(vha, 1);
1024                         }
1025
1026                         if (vha->vp_idx) {
1027                                 atomic_set(&vha->vp_state, VP_FAILED);
1028                                 fc_vport_set_state(vha->fc_vport,
1029                                     FC_VPORT_FAILED);
1030                                 qla2x00_mark_all_devices_lost(vha, 1);
1031                         }
1032
1033                         vha->flags.management_server_logged_in = 0;
1034                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1035                         break;
1036                 }
1037
1038                 /*
1039                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1040                  * event etc. earlier indicating loop is down) then process
1041                  * it.  Otherwise ignore it and Wait for RSCN to come in.
1042                  */
1043                 atomic_set(&vha->loop_down_timer, 0);
1044                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
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                         break;
1050                 }
1051
1052                 ql_dbg(ql_dbg_async, vha, 0x5012,
1053                     "Port database changed %04x %04x %04x.\n",
1054                     mb[1], mb[2], mb[3]);
1055
1056                 /*
1057                  * Mark all devices as missing so we will login again.
1058                  */
1059                 atomic_set(&vha->loop_state, LOOP_UP);
1060
1061                 qla2x00_mark_all_devices_lost(vha, 1);
1062
1063                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1064                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1065                 set_bit(VP_CONFIG_OK, &vha->vp_flags);
1066                 break;
1067
1068         case MBA_RSCN_UPDATE:           /* State Change Registration */
1069                 /* Check if the Vport has issued a SCR */
1070                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1071                         break;
1072                 /* Only handle SCNs for our Vport index. */
1073                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1074                         break;
1075
1076                 ql_dbg(ql_dbg_async, vha, 0x5013,
1077                     "RSCN database changed -- %04x %04x %04x.\n",
1078                     mb[1], mb[2], mb[3]);
1079
1080                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1081                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1082                                 | vha->d_id.b.al_pa;
1083                 if (rscn_entry == host_pid) {
1084                         ql_dbg(ql_dbg_async, vha, 0x5014,
1085                             "Ignoring RSCN update to local host "
1086                             "port ID (%06x).\n", host_pid);
1087                         break;
1088                 }
1089
1090                 /* Ignore reserved bits from RSCN-payload. */
1091                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1092
1093                 /* Skip RSCNs for virtual ports on the same physical port */
1094                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1095                         break;
1096
1097                 atomic_set(&vha->loop_down_timer, 0);
1098                 vha->flags.management_server_logged_in = 0;
1099                 {
1100                         struct event_arg ea;
1101
1102                         memset(&ea, 0, sizeof(ea));
1103                         ea.event = FCME_RSCN;
1104                         ea.id.b24 = rscn_entry;
1105                         ea.id.b.rsvd_1 = rscn_entry >> 24;
1106                         qla2x00_fcport_event_handler(vha, &ea);
1107                         qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1108                 }
1109                 break;
1110         /* case MBA_RIO_RESPONSE: */
1111         case MBA_ZIO_RESPONSE:
1112                 ql_dbg(ql_dbg_async, vha, 0x5015,
1113                     "[R|Z]IO update completion.\n");
1114
1115                 if (IS_FWI2_CAPABLE(ha))
1116                         qla24xx_process_response_queue(vha, rsp);
1117                 else
1118                         qla2x00_process_response_queue(rsp);
1119                 break;
1120
1121         case MBA_DISCARD_RND_FRAME:
1122                 ql_dbg(ql_dbg_async, vha, 0x5016,
1123                     "Discard RND Frame -- %04x %04x %04x.\n",
1124                     mb[1], mb[2], mb[3]);
1125                 break;
1126
1127         case MBA_TRACE_NOTIFICATION:
1128                 ql_dbg(ql_dbg_async, vha, 0x5017,
1129                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1130                 break;
1131
1132         case MBA_ISP84XX_ALERT:
1133                 ql_dbg(ql_dbg_async, vha, 0x5018,
1134                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1135                     mb[1], mb[2], mb[3]);
1136
1137                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1138                 switch (mb[1]) {
1139                 case A84_PANIC_RECOVERY:
1140                         ql_log(ql_log_info, vha, 0x5019,
1141                             "Alert 84XX: panic recovery %04x %04x.\n",
1142                             mb[2], mb[3]);
1143                         break;
1144                 case A84_OP_LOGIN_COMPLETE:
1145                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1146                         ql_log(ql_log_info, vha, 0x501a,
1147                             "Alert 84XX: firmware version %x.\n",
1148                             ha->cs84xx->op_fw_version);
1149                         break;
1150                 case A84_DIAG_LOGIN_COMPLETE:
1151                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1152                         ql_log(ql_log_info, vha, 0x501b,
1153                             "Alert 84XX: diagnostic firmware version %x.\n",
1154                             ha->cs84xx->diag_fw_version);
1155                         break;
1156                 case A84_GOLD_LOGIN_COMPLETE:
1157                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1158                         ha->cs84xx->fw_update = 1;
1159                         ql_log(ql_log_info, vha, 0x501c,
1160                             "Alert 84XX: gold firmware version %x.\n",
1161                             ha->cs84xx->gold_fw_version);
1162                         break;
1163                 default:
1164                         ql_log(ql_log_warn, vha, 0x501d,
1165                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1166                             mb[1], mb[2], mb[3]);
1167                 }
1168                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1169                 break;
1170         case MBA_DCBX_START:
1171                 ql_dbg(ql_dbg_async, vha, 0x501e,
1172                     "DCBX Started -- %04x %04x %04x.\n",
1173                     mb[1], mb[2], mb[3]);
1174                 break;
1175         case MBA_DCBX_PARAM_UPDATE:
1176                 ql_dbg(ql_dbg_async, vha, 0x501f,
1177                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1178                     mb[1], mb[2], mb[3]);
1179                 break;
1180         case MBA_FCF_CONF_ERR:
1181                 ql_dbg(ql_dbg_async, vha, 0x5020,
1182                     "FCF Configuration Error -- %04x %04x %04x.\n",
1183                     mb[1], mb[2], mb[3]);
1184                 break;
1185         case MBA_IDC_NOTIFY:
1186                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1187                         mb[4] = RD_REG_WORD(&reg24->mailbox4);
1188                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1189                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1190                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1191                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1192                                 /*
1193                                  * Extend loop down timer since port is active.
1194                                  */
1195                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1196                                         atomic_set(&vha->loop_down_timer,
1197                                             LOOP_DOWN_TIME);
1198                                 qla2xxx_wake_dpc(vha);
1199                         }
1200                 }
1201         case MBA_IDC_COMPLETE:
1202                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1203                         complete(&ha->lb_portup_comp);
1204                 /* Fallthru */
1205         case MBA_IDC_TIME_EXT:
1206                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1207                     IS_QLA8044(ha))
1208                         qla81xx_idc_event(vha, mb[0], mb[1]);
1209                 break;
1210
1211         case MBA_IDC_AEN:
1212                 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1213                 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1214                 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1215                 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1216                 qla83xx_handle_8200_aen(vha, mb);
1217                 break;
1218
1219         case MBA_DPORT_DIAGNOSTICS:
1220                 ql_dbg(ql_dbg_async, vha, 0x5052,
1221                     "D-Port Diagnostics: %04x result=%s\n",
1222                     mb[0],
1223                     mb[1] == 0 ? "start" :
1224                     mb[1] == 1 ? "done (pass)" :
1225                     mb[1] == 2 ? "done (error)" : "other");
1226                 break;
1227
1228         case MBA_TEMPERATURE_ALERT:
1229                 ql_dbg(ql_dbg_async, vha, 0x505e,
1230                     "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1231                 if (mb[1] == 0x12)
1232                         schedule_work(&ha->board_disable);
1233                 break;
1234
1235         case MBA_TRANS_INSERT:
1236                 ql_dbg(ql_dbg_async, vha, 0x5091,
1237                     "Transceiver Insertion: %04x\n", mb[1]);
1238                 break;
1239
1240         default:
1241                 ql_dbg(ql_dbg_async, vha, 0x5057,
1242                     "Unknown AEN:%04x %04x %04x %04x\n",
1243                     mb[0], mb[1], mb[2], mb[3]);
1244         }
1245
1246         qlt_async_event(mb[0], vha, mb);
1247
1248         if (!vha->vp_idx && ha->num_vhosts)
1249                 qla2x00_alert_all_vps(rsp, mb);
1250 }
1251
1252 /**
1253  * qla2x00_process_completed_request() - Process a Fast Post response.
1254  * @ha: SCSI driver HA context
1255  * @index: SRB index
1256  */
1257 void
1258 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1259                                   struct req_que *req, uint32_t index)
1260 {
1261         srb_t *sp;
1262         struct qla_hw_data *ha = vha->hw;
1263
1264         /* Validate handle. */
1265         if (index >= req->num_outstanding_cmds) {
1266                 ql_log(ql_log_warn, vha, 0x3014,
1267                     "Invalid SCSI command index (%x).\n", index);
1268
1269                 if (IS_P3P_TYPE(ha))
1270                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1271                 else
1272                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1273                 return;
1274         }
1275
1276         sp = req->outstanding_cmds[index];
1277         if (sp) {
1278                 /* Free outstanding command slot. */
1279                 req->outstanding_cmds[index] = NULL;
1280
1281                 /* Save ISP completion status */
1282                 sp->done(sp, DID_OK << 16);
1283         } else {
1284                 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1285
1286                 if (IS_P3P_TYPE(ha))
1287                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1288                 else
1289                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1290         }
1291 }
1292
1293 srb_t *
1294 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1295     struct req_que *req, void *iocb)
1296 {
1297         struct qla_hw_data *ha = vha->hw;
1298         sts_entry_t *pkt = iocb;
1299         srb_t *sp = NULL;
1300         uint16_t index;
1301
1302         index = LSW(pkt->handle);
1303         if (index >= req->num_outstanding_cmds) {
1304                 ql_log(ql_log_warn, vha, 0x5031,
1305                            "Invalid command index (%x) type %8ph.\n",
1306                            index, iocb);
1307                 if (IS_P3P_TYPE(ha))
1308                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1309                 else
1310                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1311                 goto done;
1312         }
1313         sp = req->outstanding_cmds[index];
1314         if (!sp) {
1315                 ql_log(ql_log_warn, vha, 0x5032,
1316                     "Invalid completion handle (%x) -- timed-out.\n", index);
1317                 return sp;
1318         }
1319         if (sp->handle != index) {
1320                 ql_log(ql_log_warn, vha, 0x5033,
1321                     "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1322                 return NULL;
1323         }
1324
1325         req->outstanding_cmds[index] = NULL;
1326
1327 done:
1328         return sp;
1329 }
1330
1331 static void
1332 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1333     struct mbx_entry *mbx)
1334 {
1335         const char func[] = "MBX-IOCB";
1336         const char *type;
1337         fc_port_t *fcport;
1338         srb_t *sp;
1339         struct srb_iocb *lio;
1340         uint16_t *data;
1341         uint16_t status;
1342
1343         sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1344         if (!sp)
1345                 return;
1346
1347         lio = &sp->u.iocb_cmd;
1348         type = sp->name;
1349         fcport = sp->fcport;
1350         data = lio->u.logio.data;
1351
1352         data[0] = MBS_COMMAND_ERROR;
1353         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1354             QLA_LOGIO_LOGIN_RETRIED : 0;
1355         if (mbx->entry_status) {
1356                 ql_dbg(ql_dbg_async, vha, 0x5043,
1357                     "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1358                     "entry-status=%x status=%x state-flag=%x "
1359                     "status-flags=%x.\n", type, sp->handle,
1360                     fcport->d_id.b.domain, fcport->d_id.b.area,
1361                     fcport->d_id.b.al_pa, mbx->entry_status,
1362                     le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1363                     le16_to_cpu(mbx->status_flags));
1364
1365                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1366                     (uint8_t *)mbx, sizeof(*mbx));
1367
1368                 goto logio_done;
1369         }
1370
1371         status = le16_to_cpu(mbx->status);
1372         if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1373             le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1374                 status = 0;
1375         if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1376                 ql_dbg(ql_dbg_async, vha, 0x5045,
1377                     "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1378                     type, sp->handle, fcport->d_id.b.domain,
1379                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1380                     le16_to_cpu(mbx->mb1));
1381
1382                 data[0] = MBS_COMMAND_COMPLETE;
1383                 if (sp->type == SRB_LOGIN_CMD) {
1384                         fcport->port_type = FCT_TARGET;
1385                         if (le16_to_cpu(mbx->mb1) & BIT_0)
1386                                 fcport->port_type = FCT_INITIATOR;
1387                         else if (le16_to_cpu(mbx->mb1) & BIT_1)
1388                                 fcport->flags |= FCF_FCP2_DEVICE;
1389                 }
1390                 goto logio_done;
1391         }
1392
1393         data[0] = le16_to_cpu(mbx->mb0);
1394         switch (data[0]) {
1395         case MBS_PORT_ID_USED:
1396                 data[1] = le16_to_cpu(mbx->mb1);
1397                 break;
1398         case MBS_LOOP_ID_USED:
1399                 break;
1400         default:
1401                 data[0] = MBS_COMMAND_ERROR;
1402                 break;
1403         }
1404
1405         ql_log(ql_log_warn, vha, 0x5046,
1406             "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1407             "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1408             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1409             status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1410             le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1411             le16_to_cpu(mbx->mb7));
1412
1413 logio_done:
1414         sp->done(sp, 0);
1415 }
1416
1417 static void
1418 qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1419     struct mbx_24xx_entry *pkt)
1420 {
1421         const char func[] = "MBX-IOCB2";
1422         srb_t *sp;
1423         struct srb_iocb *si;
1424         u16 sz, i;
1425         int res;
1426
1427         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1428         if (!sp)
1429                 return;
1430
1431         si = &sp->u.iocb_cmd;
1432         sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
1433
1434         for (i = 0; i < sz; i++)
1435                 si->u.mbx.in_mb[i] = le16_to_cpu(pkt->mb[i]);
1436
1437         res = (si->u.mbx.in_mb[0] & MBS_MASK);
1438
1439         sp->done(sp, res);
1440 }
1441
1442 static void
1443 qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1444     struct nack_to_isp *pkt)
1445 {
1446         const char func[] = "nack";
1447         srb_t *sp;
1448         int res = 0;
1449
1450         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1451         if (!sp)
1452                 return;
1453
1454         if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
1455                 res = QLA_FUNCTION_FAILED;
1456
1457         sp->done(sp, res);
1458 }
1459
1460 static void
1461 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1462     sts_entry_t *pkt, int iocb_type)
1463 {
1464         const char func[] = "CT_IOCB";
1465         const char *type;
1466         srb_t *sp;
1467         struct bsg_job *bsg_job;
1468         struct fc_bsg_reply *bsg_reply;
1469         uint16_t comp_status;
1470         int res = 0;
1471
1472         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1473         if (!sp)
1474                 return;
1475
1476         switch (sp->type) {
1477         case SRB_CT_CMD:
1478             bsg_job = sp->u.bsg_job;
1479             bsg_reply = bsg_job->reply;
1480
1481             type = "ct pass-through";
1482
1483             comp_status = le16_to_cpu(pkt->comp_status);
1484
1485             /*
1486              * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1487              * fc payload  to the caller
1488              */
1489             bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1490             bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1491
1492             if (comp_status != CS_COMPLETE) {
1493                     if (comp_status == CS_DATA_UNDERRUN) {
1494                             res = DID_OK << 16;
1495                             bsg_reply->reply_payload_rcv_len =
1496                                 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1497
1498                             ql_log(ql_log_warn, vha, 0x5048,
1499                                 "CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
1500                                 type, comp_status,
1501                                 bsg_reply->reply_payload_rcv_len);
1502                     } else {
1503                             ql_log(ql_log_warn, vha, 0x5049,
1504                                 "CT pass-through-%s error comp_status=0x%x.\n",
1505                                 type, comp_status);
1506                             res = DID_ERROR << 16;
1507                             bsg_reply->reply_payload_rcv_len = 0;
1508                     }
1509                     ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1510                         (uint8_t *)pkt, sizeof(*pkt));
1511             } else {
1512                     res = DID_OK << 16;
1513                     bsg_reply->reply_payload_rcv_len =
1514                         bsg_job->reply_payload.payload_len;
1515                     bsg_job->reply_len = 0;
1516             }
1517             break;
1518         case SRB_CT_PTHRU_CMD:
1519             /*
1520              * borrowing sts_entry_24xx.comp_status.
1521              * same location as ct_entry_24xx.comp_status
1522              */
1523              res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
1524                  (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1525                  sp->name);
1526              break;
1527         }
1528
1529         sp->done(sp, res);
1530 }
1531
1532 static void
1533 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1534     struct sts_entry_24xx *pkt, int iocb_type)
1535 {
1536         const char func[] = "ELS_CT_IOCB";
1537         const char *type;
1538         srb_t *sp;
1539         struct bsg_job *bsg_job;
1540         struct fc_bsg_reply *bsg_reply;
1541         uint16_t comp_status;
1542         uint32_t fw_status[3];
1543         int res;
1544
1545         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1546         if (!sp)
1547                 return;
1548
1549         type = NULL;
1550         switch (sp->type) {
1551         case SRB_ELS_CMD_RPT:
1552         case SRB_ELS_CMD_HST:
1553                 type = "els";
1554                 break;
1555         case SRB_CT_CMD:
1556                 type = "ct pass-through";
1557                 break;
1558         case SRB_ELS_DCMD:
1559                 type = "Driver ELS logo";
1560                 ql_dbg(ql_dbg_user, vha, 0x5047,
1561                     "Completing %s: (%p) type=%d.\n", type, sp, sp->type);
1562                 sp->done(sp, 0);
1563                 return;
1564         case SRB_CT_PTHRU_CMD:
1565                 /* borrowing sts_entry_24xx.comp_status.
1566                    same location as ct_entry_24xx.comp_status
1567                  */
1568                 res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
1569                         (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1570                         sp->name);
1571                 sp->done(sp, res);
1572                 return;
1573         default:
1574                 ql_dbg(ql_dbg_user, vha, 0x503e,
1575                     "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1576                 return;
1577         }
1578
1579         comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1580         fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1581         fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1582
1583         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1584          * fc payload  to the caller
1585          */
1586         bsg_job = sp->u.bsg_job;
1587         bsg_reply = bsg_job->reply;
1588         bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1589         bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1590
1591         if (comp_status != CS_COMPLETE) {
1592                 if (comp_status == CS_DATA_UNDERRUN) {
1593                         res = DID_OK << 16;
1594                         bsg_reply->reply_payload_rcv_len =
1595                             le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1596
1597                         ql_dbg(ql_dbg_user, vha, 0x503f,
1598                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1599                             "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1600                             type, sp->handle, comp_status, fw_status[1], fw_status[2],
1601                             le16_to_cpu(((struct els_sts_entry_24xx *)
1602                                 pkt)->total_byte_count));
1603                 } else {
1604                         ql_dbg(ql_dbg_user, vha, 0x5040,
1605                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1606                             "error subcode 1=0x%x error subcode 2=0x%x.\n",
1607                             type, sp->handle, comp_status,
1608                             le16_to_cpu(((struct els_sts_entry_24xx *)
1609                                 pkt)->error_subcode_1),
1610                             le16_to_cpu(((struct els_sts_entry_24xx *)
1611                                     pkt)->error_subcode_2));
1612                         res = DID_ERROR << 16;
1613                         bsg_reply->reply_payload_rcv_len = 0;
1614                 }
1615                 memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
1616                        fw_status, sizeof(fw_status));
1617                 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1618                                 (uint8_t *)pkt, sizeof(*pkt));
1619         }
1620         else {
1621                 res =  DID_OK << 16;
1622                 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1623                 bsg_job->reply_len = 0;
1624         }
1625
1626         sp->done(sp, res);
1627 }
1628
1629 static void
1630 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1631     struct logio_entry_24xx *logio)
1632 {
1633         const char func[] = "LOGIO-IOCB";
1634         const char *type;
1635         fc_port_t *fcport;
1636         srb_t *sp;
1637         struct srb_iocb *lio;
1638         uint16_t *data;
1639         uint32_t iop[2];
1640
1641         sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1642         if (!sp)
1643                 return;
1644
1645         lio = &sp->u.iocb_cmd;
1646         type = sp->name;
1647         fcport = sp->fcport;
1648         data = lio->u.logio.data;
1649
1650         data[0] = MBS_COMMAND_ERROR;
1651         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1652                 QLA_LOGIO_LOGIN_RETRIED : 0;
1653         if (logio->entry_status) {
1654                 ql_log(ql_log_warn, fcport->vha, 0x5034,
1655                     "Async-%s error entry - %8phC hdl=%x"
1656                     "portid=%02x%02x%02x entry-status=%x.\n",
1657                     type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
1658                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1659                     logio->entry_status);
1660                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1661                     (uint8_t *)logio, sizeof(*logio));
1662
1663                 goto logio_done;
1664         }
1665
1666         if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1667                 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1668                     "Async-%s complete - %8phC hdl=%x portid=%02x%02x%02x "
1669                     "iop0=%x.\n", type, fcport->port_name, sp->handle,
1670                     fcport->d_id.b.domain,
1671                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1672                     le32_to_cpu(logio->io_parameter[0]));
1673
1674                 vha->hw->exch_starvation = 0;
1675                 data[0] = MBS_COMMAND_COMPLETE;
1676                 if (sp->type != SRB_LOGIN_CMD)
1677                         goto logio_done;
1678
1679                 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1680                 if (iop[0] & BIT_4) {
1681                         fcport->port_type = FCT_TARGET;
1682                         if (iop[0] & BIT_8)
1683                                 fcport->flags |= FCF_FCP2_DEVICE;
1684                 } else if (iop[0] & BIT_5)
1685                         fcport->port_type = FCT_INITIATOR;
1686
1687                 if (iop[0] & BIT_7)
1688                         fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1689
1690                 if (logio->io_parameter[7] || logio->io_parameter[8])
1691                         fcport->supported_classes |= FC_COS_CLASS2;
1692                 if (logio->io_parameter[9] || logio->io_parameter[10])
1693                         fcport->supported_classes |= FC_COS_CLASS3;
1694
1695                 goto logio_done;
1696         }
1697
1698         iop[0] = le32_to_cpu(logio->io_parameter[0]);
1699         iop[1] = le32_to_cpu(logio->io_parameter[1]);
1700         lio->u.logio.iop[0] = iop[0];
1701         lio->u.logio.iop[1] = iop[1];
1702         switch (iop[0]) {
1703         case LSC_SCODE_PORTID_USED:
1704                 data[0] = MBS_PORT_ID_USED;
1705                 data[1] = LSW(iop[1]);
1706                 break;
1707         case LSC_SCODE_NPORT_USED:
1708                 data[0] = MBS_LOOP_ID_USED;
1709                 break;
1710         case LSC_SCODE_CMD_FAILED:
1711                 if (iop[1] == 0x0606) {
1712                         /*
1713                          * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
1714                          * Target side acked.
1715                          */
1716                         data[0] = MBS_COMMAND_COMPLETE;
1717                         goto logio_done;
1718                 }
1719                 data[0] = MBS_COMMAND_ERROR;
1720                 break;
1721         case LSC_SCODE_NOXCB:
1722                 vha->hw->exch_starvation++;
1723                 if (vha->hw->exch_starvation > 5) {
1724                         ql_log(ql_log_warn, vha, 0xd046,
1725                             "Exchange starvation. Resetting RISC\n");
1726
1727                         vha->hw->exch_starvation = 0;
1728
1729                         if (IS_P3P_TYPE(vha->hw))
1730                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1731                         else
1732                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1733                         qla2xxx_wake_dpc(vha);
1734                 }
1735                 /* drop through */
1736         default:
1737                 data[0] = MBS_COMMAND_ERROR;
1738                 break;
1739         }
1740
1741         ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1742             "Async-%s failed - %8phC hdl=%x portid=%02x%02x%02x comp=%x "
1743             "iop0=%x iop1=%x.\n", type, fcport->port_name,
1744                 sp->handle, fcport->d_id.b.domain,
1745             fcport->d_id.b.area, fcport->d_id.b.al_pa,
1746             le16_to_cpu(logio->comp_status),
1747             le32_to_cpu(logio->io_parameter[0]),
1748             le32_to_cpu(logio->io_parameter[1]));
1749
1750 logio_done:
1751         sp->done(sp, 0);
1752 }
1753
1754 static void
1755 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
1756 {
1757         const char func[] = "TMF-IOCB";
1758         const char *type;
1759         fc_port_t *fcport;
1760         srb_t *sp;
1761         struct srb_iocb *iocb;
1762         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1763
1764         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1765         if (!sp)
1766                 return;
1767
1768         iocb = &sp->u.iocb_cmd;
1769         type = sp->name;
1770         fcport = sp->fcport;
1771         iocb->u.tmf.data = QLA_SUCCESS;
1772
1773         if (sts->entry_status) {
1774                 ql_log(ql_log_warn, fcport->vha, 0x5038,
1775                     "Async-%s error - hdl=%x entry-status(%x).\n",
1776                     type, sp->handle, sts->entry_status);
1777                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1778         } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
1779                 ql_log(ql_log_warn, fcport->vha, 0x5039,
1780                     "Async-%s error - hdl=%x completion status(%x).\n",
1781                     type, sp->handle, sts->comp_status);
1782                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1783         } else if ((le16_to_cpu(sts->scsi_status) &
1784             SS_RESPONSE_INFO_LEN_VALID)) {
1785                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1786                         ql_log(ql_log_warn, fcport->vha, 0x503b,
1787                             "Async-%s error - hdl=%x not enough response(%d).\n",
1788                             type, sp->handle, sts->rsp_data_len);
1789                 } else if (sts->data[3]) {
1790                         ql_log(ql_log_warn, fcport->vha, 0x503c,
1791                             "Async-%s error - hdl=%x response(%x).\n",
1792                             type, sp->handle, sts->data[3]);
1793                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1794                 }
1795         }
1796
1797         if (iocb->u.tmf.data != QLA_SUCCESS)
1798                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1799                     (uint8_t *)sts, sizeof(*sts));
1800
1801         sp->done(sp, 0);
1802 }
1803
1804 static void
1805 qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
1806 {
1807         const char func[] = "NVME-IOCB";
1808         fc_port_t *fcport;
1809         srb_t *sp;
1810         struct srb_iocb *iocb;
1811         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1812         uint16_t        state_flags;
1813         struct nvmefc_fcp_req *fd;
1814         uint16_t        ret = 0;
1815         struct srb_iocb *nvme;
1816
1817         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1818         if (!sp)
1819                 return;
1820
1821         iocb = &sp->u.iocb_cmd;
1822         fcport = sp->fcport;
1823         iocb->u.nvme.comp_status = le16_to_cpu(sts->comp_status);
1824         state_flags  = le16_to_cpu(sts->state_flags);
1825         fd = iocb->u.nvme.desc;
1826         nvme = &sp->u.iocb_cmd;
1827
1828         if (unlikely(nvme->u.nvme.aen_op))
1829                 atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
1830
1831         /*
1832          * State flags: Bit 6 and 0.
1833          * If 0 is set, we don't care about 6.
1834          * both cases resp was dma'd to host buffer
1835          * if both are 0, that is good path case.
1836          * if six is set and 0 is clear, we need to
1837          * copy resp data from status iocb to resp buffer.
1838          */
1839         if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
1840                 iocb->u.nvme.rsp_pyld_len = 0;
1841         } else if ((state_flags & SF_FCP_RSP_DMA)) {
1842                 iocb->u.nvme.rsp_pyld_len = le16_to_cpu(sts->nvme_rsp_pyld_len);
1843         } else if (state_flags & SF_NVME_ERSP) {
1844                 uint32_t *inbuf, *outbuf;
1845                 uint16_t iter;
1846
1847                 inbuf = (uint32_t *)&sts->nvme_ersp_data;
1848                 outbuf = (uint32_t *)fd->rspaddr;
1849                 iocb->u.nvme.rsp_pyld_len = le16_to_cpu(sts->nvme_rsp_pyld_len);
1850                 if (unlikely(iocb->u.nvme.rsp_pyld_len >
1851                     sizeof(struct nvme_fc_ersp_iu))) {
1852                         if (ql_mask_match(ql_dbg_io)) {
1853                                 WARN_ONCE(1, "Unexpected response payload length %u.\n",
1854                                     iocb->u.nvme.rsp_pyld_len);
1855                                 ql_log(ql_log_warn, fcport->vha, 0x5100,
1856                                     "Unexpected response payload length %u.\n",
1857                                     iocb->u.nvme.rsp_pyld_len);
1858                         }
1859                         iocb->u.nvme.rsp_pyld_len =
1860                             sizeof(struct nvme_fc_ersp_iu);
1861                 }
1862                 iter = iocb->u.nvme.rsp_pyld_len >> 2;
1863                 for (; iter; iter--)
1864                         *outbuf++ = swab32(*inbuf++);
1865         } else { /* unhandled case */
1866             ql_log(ql_log_warn, fcport->vha, 0x503a,
1867                 "NVME-%s error. Unhandled state_flags of %x\n",
1868                 sp->name, state_flags);
1869         }
1870
1871         fd->transferred_length = fd->payload_length -
1872             le32_to_cpu(sts->residual_len);
1873
1874         /*
1875          * If transport error then Failure (HBA rejects request)
1876          * otherwise transport will handle.
1877          */
1878         if (sts->entry_status) {
1879                 ql_log(ql_log_warn, fcport->vha, 0x5038,
1880                     "NVME-%s error - hdl=%x entry-status(%x).\n",
1881                     sp->name, sp->handle, sts->entry_status);
1882                 ret = QLA_FUNCTION_FAILED;
1883         } else  {
1884                 switch (le16_to_cpu(sts->comp_status)) {
1885                         case CS_COMPLETE:
1886                                 ret = 0;
1887                         break;
1888
1889                         case CS_ABORTED:
1890                         case CS_RESET:
1891                         case CS_PORT_UNAVAILABLE:
1892                         case CS_PORT_LOGGED_OUT:
1893                         case CS_PORT_BUSY:
1894                                 ql_log(ql_log_warn, fcport->vha, 0x5060,
1895                                 "NVME-%s ERR Handling - hdl=%x completion status(%x) resid=%x  ox_id=%x\n",
1896                                 sp->name, sp->handle, sts->comp_status,
1897                                 le32_to_cpu(sts->residual_len), sts->ox_id);
1898                                 fd->transferred_length = fd->payload_length;
1899                                 ret = QLA_ABORTED;
1900                         break;
1901
1902                         default:
1903                                 ql_log(ql_log_warn, fcport->vha, 0x5060,
1904                                 "NVME-%s error - hdl=%x completion status(%x) resid=%x  ox_id=%x\n",
1905                                 sp->name, sp->handle, sts->comp_status,
1906                                 le32_to_cpu(sts->residual_len), sts->ox_id);
1907                                 ret = QLA_FUNCTION_FAILED;
1908                                 break;
1909                 }
1910         }
1911         sp->done(sp, ret);
1912 }
1913
1914 /**
1915  * qla2x00_process_response_queue() - Process response queue entries.
1916  * @ha: SCSI driver HA context
1917  */
1918 void
1919 qla2x00_process_response_queue(struct rsp_que *rsp)
1920 {
1921         struct scsi_qla_host *vha;
1922         struct qla_hw_data *ha = rsp->hw;
1923         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1924         sts_entry_t     *pkt;
1925         uint16_t        handle_cnt;
1926         uint16_t        cnt;
1927
1928         vha = pci_get_drvdata(ha->pdev);
1929
1930         if (!vha->flags.online)
1931                 return;
1932
1933         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1934                 pkt = (sts_entry_t *)rsp->ring_ptr;
1935
1936                 rsp->ring_index++;
1937                 if (rsp->ring_index == rsp->length) {
1938                         rsp->ring_index = 0;
1939                         rsp->ring_ptr = rsp->ring;
1940                 } else {
1941                         rsp->ring_ptr++;
1942                 }
1943
1944                 if (pkt->entry_status != 0) {
1945                         qla2x00_error_entry(vha, rsp, pkt);
1946                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1947                         wmb();
1948                         continue;
1949                 }
1950
1951                 switch (pkt->entry_type) {
1952                 case STATUS_TYPE:
1953                         qla2x00_status_entry(vha, rsp, pkt);
1954                         break;
1955                 case STATUS_TYPE_21:
1956                         handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1957                         for (cnt = 0; cnt < handle_cnt; cnt++) {
1958                                 qla2x00_process_completed_request(vha, rsp->req,
1959                                     ((sts21_entry_t *)pkt)->handle[cnt]);
1960                         }
1961                         break;
1962                 case STATUS_TYPE_22:
1963                         handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1964                         for (cnt = 0; cnt < handle_cnt; cnt++) {
1965                                 qla2x00_process_completed_request(vha, rsp->req,
1966                                     ((sts22_entry_t *)pkt)->handle[cnt]);
1967                         }
1968                         break;
1969                 case STATUS_CONT_TYPE:
1970                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1971                         break;
1972                 case MBX_IOCB_TYPE:
1973                         qla2x00_mbx_iocb_entry(vha, rsp->req,
1974                             (struct mbx_entry *)pkt);
1975                         break;
1976                 case CT_IOCB_TYPE:
1977                         qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1978                         break;
1979                 default:
1980                         /* Type Not Supported. */
1981                         ql_log(ql_log_warn, vha, 0x504a,
1982                             "Received unknown response pkt type %x "
1983                             "entry status=%x.\n",
1984                             pkt->entry_type, pkt->entry_status);
1985                         break;
1986                 }
1987                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1988                 wmb();
1989         }
1990
1991         /* Adjust ring index */
1992         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1993 }
1994
1995 static inline void
1996 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1997                      uint32_t sense_len, struct rsp_que *rsp, int res)
1998 {
1999         struct scsi_qla_host *vha = sp->vha;
2000         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2001         uint32_t track_sense_len;
2002
2003         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2004                 sense_len = SCSI_SENSE_BUFFERSIZE;
2005
2006         SET_CMD_SENSE_LEN(sp, sense_len);
2007         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2008         track_sense_len = sense_len;
2009
2010         if (sense_len > par_sense_len)
2011                 sense_len = par_sense_len;
2012
2013         memcpy(cp->sense_buffer, sense_data, sense_len);
2014
2015         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2016         track_sense_len -= sense_len;
2017         SET_CMD_SENSE_LEN(sp, track_sense_len);
2018
2019         if (track_sense_len != 0) {
2020                 rsp->status_srb = sp;
2021                 cp->result = res;
2022         }
2023
2024         if (sense_len) {
2025                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
2026                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2027                     sp->vha->host_no, cp->device->id, cp->device->lun,
2028                     cp);
2029                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
2030                     cp->sense_buffer, sense_len);
2031         }
2032 }
2033
2034 struct scsi_dif_tuple {
2035         __be16 guard;       /* Checksum */
2036         __be16 app_tag;         /* APPL identifier */
2037         __be32 ref_tag;         /* Target LBA or indirect LBA */
2038 };
2039
2040 /*
2041  * Checks the guard or meta-data for the type of error
2042  * detected by the HBA. In case of errors, we set the
2043  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
2044  * to indicate to the kernel that the HBA detected error.
2045  */
2046 static inline int
2047 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
2048 {
2049         struct scsi_qla_host *vha = sp->vha;
2050         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2051         uint8_t         *ap = &sts24->data[12];
2052         uint8_t         *ep = &sts24->data[20];
2053         uint32_t        e_ref_tag, a_ref_tag;
2054         uint16_t        e_app_tag, a_app_tag;
2055         uint16_t        e_guard, a_guard;
2056
2057         /*
2058          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
2059          * would make guard field appear at offset 2
2060          */
2061         a_guard   = le16_to_cpu(*(uint16_t *)(ap + 2));
2062         a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
2063         a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
2064         e_guard   = le16_to_cpu(*(uint16_t *)(ep + 2));
2065         e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
2066         e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
2067
2068         ql_dbg(ql_dbg_io, vha, 0x3023,
2069             "iocb(s) %p Returned STATUS.\n", sts24);
2070
2071         ql_dbg(ql_dbg_io, vha, 0x3024,
2072             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
2073             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
2074             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
2075             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
2076             a_app_tag, e_app_tag, a_guard, e_guard);
2077
2078         /*
2079          * Ignore sector if:
2080          * For type     3: ref & app tag is all 'f's
2081          * For type 0,1,2: app tag is all 'f's
2082          */
2083         if ((a_app_tag == T10_PI_APP_ESCAPE) &&
2084             ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
2085              (a_ref_tag == T10_PI_REF_ESCAPE))) {
2086                 uint32_t blocks_done, resid;
2087                 sector_t lba_s = scsi_get_lba(cmd);
2088
2089                 /* 2TB boundary case covered automatically with this */
2090                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
2091
2092                 resid = scsi_bufflen(cmd) - (blocks_done *
2093                     cmd->device->sector_size);
2094
2095                 scsi_set_resid(cmd, resid);
2096                 cmd->result = DID_OK << 16;
2097
2098                 /* Update protection tag */
2099                 if (scsi_prot_sg_count(cmd)) {
2100                         uint32_t i, j = 0, k = 0, num_ent;
2101                         struct scatterlist *sg;
2102                         struct t10_pi_tuple *spt;
2103
2104                         /* Patch the corresponding protection tags */
2105                         scsi_for_each_prot_sg(cmd, sg,
2106                             scsi_prot_sg_count(cmd), i) {
2107                                 num_ent = sg_dma_len(sg) / 8;
2108                                 if (k + num_ent < blocks_done) {
2109                                         k += num_ent;
2110                                         continue;
2111                                 }
2112                                 j = blocks_done - k - 1;
2113                                 k = blocks_done;
2114                                 break;
2115                         }
2116
2117                         if (k != blocks_done) {
2118                                 ql_log(ql_log_warn, vha, 0x302f,
2119                                     "unexpected tag values tag:lba=%x:%llx)\n",
2120                                     e_ref_tag, (unsigned long long)lba_s);
2121                                 return 1;
2122                         }
2123
2124                         spt = page_address(sg_page(sg)) + sg->offset;
2125                         spt += j;
2126
2127                         spt->app_tag = T10_PI_APP_ESCAPE;
2128                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
2129                                 spt->ref_tag = T10_PI_REF_ESCAPE;
2130                 }
2131
2132                 return 0;
2133         }
2134
2135         /* check guard */
2136         if (e_guard != a_guard) {
2137                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2138                     0x10, 0x1);
2139                 set_driver_byte(cmd, DRIVER_SENSE);
2140                 set_host_byte(cmd, DID_ABORT);
2141                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
2142                 return 1;
2143         }
2144
2145         /* check ref tag */
2146         if (e_ref_tag != a_ref_tag) {
2147                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2148                     0x10, 0x3);
2149                 set_driver_byte(cmd, DRIVER_SENSE);
2150                 set_host_byte(cmd, DID_ABORT);
2151                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
2152                 return 1;
2153         }
2154
2155         /* check appl tag */
2156         if (e_app_tag != a_app_tag) {
2157                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2158                     0x10, 0x2);
2159                 set_driver_byte(cmd, DRIVER_SENSE);
2160                 set_host_byte(cmd, DID_ABORT);
2161                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
2162                 return 1;
2163         }
2164
2165         return 1;
2166 }
2167
2168 static void
2169 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2170                                   struct req_que *req, uint32_t index)
2171 {
2172         struct qla_hw_data *ha = vha->hw;
2173         srb_t *sp;
2174         uint16_t        comp_status;
2175         uint16_t        scsi_status;
2176         uint16_t thread_id;
2177         uint32_t rval = EXT_STATUS_OK;
2178         struct bsg_job *bsg_job = NULL;
2179         struct fc_bsg_request *bsg_request;
2180         struct fc_bsg_reply *bsg_reply;
2181         sts_entry_t *sts;
2182         struct sts_entry_24xx *sts24;
2183         sts = (sts_entry_t *) pkt;
2184         sts24 = (struct sts_entry_24xx *) pkt;
2185
2186         /* Validate handle. */
2187         if (index >= req->num_outstanding_cmds) {
2188                 ql_log(ql_log_warn, vha, 0x70af,
2189                     "Invalid SCSI completion handle 0x%x.\n", index);
2190                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2191                 return;
2192         }
2193
2194         sp = req->outstanding_cmds[index];
2195         if (!sp) {
2196                 ql_log(ql_log_warn, vha, 0x70b0,
2197                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
2198                     req->id, index);
2199
2200                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2201                 return;
2202         }
2203
2204         /* Free outstanding command slot. */
2205         req->outstanding_cmds[index] = NULL;
2206         bsg_job = sp->u.bsg_job;
2207         bsg_request = bsg_job->request;
2208         bsg_reply = bsg_job->reply;
2209
2210         if (IS_FWI2_CAPABLE(ha)) {
2211                 comp_status = le16_to_cpu(sts24->comp_status);
2212                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2213         } else {
2214                 comp_status = le16_to_cpu(sts->comp_status);
2215                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2216         }
2217
2218         thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
2219         switch (comp_status) {
2220         case CS_COMPLETE:
2221                 if (scsi_status == 0) {
2222                         bsg_reply->reply_payload_rcv_len =
2223                                         bsg_job->reply_payload.payload_len;
2224                         vha->qla_stats.input_bytes +=
2225                                 bsg_reply->reply_payload_rcv_len;
2226                         vha->qla_stats.input_requests++;
2227                         rval = EXT_STATUS_OK;
2228                 }
2229                 goto done;
2230
2231         case CS_DATA_OVERRUN:
2232                 ql_dbg(ql_dbg_user, vha, 0x70b1,
2233                     "Command completed with data overrun thread_id=%d\n",
2234                     thread_id);
2235                 rval = EXT_STATUS_DATA_OVERRUN;
2236                 break;
2237
2238         case CS_DATA_UNDERRUN:
2239                 ql_dbg(ql_dbg_user, vha, 0x70b2,
2240                     "Command completed with data underrun thread_id=%d\n",
2241                     thread_id);
2242                 rval = EXT_STATUS_DATA_UNDERRUN;
2243                 break;
2244         case CS_BIDIR_RD_OVERRUN:
2245                 ql_dbg(ql_dbg_user, vha, 0x70b3,
2246                     "Command completed with read data overrun thread_id=%d\n",
2247                     thread_id);
2248                 rval = EXT_STATUS_DATA_OVERRUN;
2249                 break;
2250
2251         case CS_BIDIR_RD_WR_OVERRUN:
2252                 ql_dbg(ql_dbg_user, vha, 0x70b4,
2253                     "Command completed with read and write data overrun "
2254                     "thread_id=%d\n", thread_id);
2255                 rval = EXT_STATUS_DATA_OVERRUN;
2256                 break;
2257
2258         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
2259                 ql_dbg(ql_dbg_user, vha, 0x70b5,
2260                     "Command completed with read data over and write data "
2261                     "underrun thread_id=%d\n", thread_id);
2262                 rval = EXT_STATUS_DATA_OVERRUN;
2263                 break;
2264
2265         case CS_BIDIR_RD_UNDERRUN:
2266                 ql_dbg(ql_dbg_user, vha, 0x70b6,
2267                     "Command completed with read data underrun "
2268                     "thread_id=%d\n", thread_id);
2269                 rval = EXT_STATUS_DATA_UNDERRUN;
2270                 break;
2271
2272         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
2273                 ql_dbg(ql_dbg_user, vha, 0x70b7,
2274                     "Command completed with read data under and write data "
2275                     "overrun thread_id=%d\n", thread_id);
2276                 rval = EXT_STATUS_DATA_UNDERRUN;
2277                 break;
2278
2279         case CS_BIDIR_RD_WR_UNDERRUN:
2280                 ql_dbg(ql_dbg_user, vha, 0x70b8,
2281                     "Command completed with read and write data underrun "
2282                     "thread_id=%d\n", thread_id);
2283                 rval = EXT_STATUS_DATA_UNDERRUN;
2284                 break;
2285
2286         case CS_BIDIR_DMA:
2287                 ql_dbg(ql_dbg_user, vha, 0x70b9,
2288                     "Command completed with data DMA error thread_id=%d\n",
2289                     thread_id);
2290                 rval = EXT_STATUS_DMA_ERR;
2291                 break;
2292
2293         case CS_TIMEOUT:
2294                 ql_dbg(ql_dbg_user, vha, 0x70ba,
2295                     "Command completed with timeout thread_id=%d\n",
2296                     thread_id);
2297                 rval = EXT_STATUS_TIMEOUT;
2298                 break;
2299         default:
2300                 ql_dbg(ql_dbg_user, vha, 0x70bb,
2301                     "Command completed with completion status=0x%x "
2302                     "thread_id=%d\n", comp_status, thread_id);
2303                 rval = EXT_STATUS_ERR;
2304                 break;
2305         }
2306         bsg_reply->reply_payload_rcv_len = 0;
2307
2308 done:
2309         /* Return the vendor specific reply to API */
2310         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2311         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2312         /* Always return DID_OK, bsg will send the vendor specific response
2313          * in this case only */
2314         sp->done(sp, DID_OK << 6);
2315
2316 }
2317
2318 /**
2319  * qla2x00_status_entry() - Process a Status IOCB entry.
2320  * @ha: SCSI driver HA context
2321  * @pkt: Entry pointer
2322  */
2323 static void
2324 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2325 {
2326         srb_t           *sp;
2327         fc_port_t       *fcport;
2328         struct scsi_cmnd *cp;
2329         sts_entry_t *sts;
2330         struct sts_entry_24xx *sts24;
2331         uint16_t        comp_status;
2332         uint16_t        scsi_status;
2333         uint16_t        ox_id;
2334         uint8_t         lscsi_status;
2335         int32_t         resid;
2336         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2337             fw_resid_len;
2338         uint8_t         *rsp_info, *sense_data;
2339         struct qla_hw_data *ha = vha->hw;
2340         uint32_t handle;
2341         uint16_t que;
2342         struct req_que *req;
2343         int logit = 1;
2344         int res = 0;
2345         uint16_t state_flags = 0;
2346         uint16_t retry_delay = 0;
2347
2348         sts = (sts_entry_t *) pkt;
2349         sts24 = (struct sts_entry_24xx *) pkt;
2350         if (IS_FWI2_CAPABLE(ha)) {
2351                 comp_status = le16_to_cpu(sts24->comp_status);
2352                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2353                 state_flags = le16_to_cpu(sts24->state_flags);
2354         } else {
2355                 comp_status = le16_to_cpu(sts->comp_status);
2356                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2357         }
2358         handle = (uint32_t) LSW(sts->handle);
2359         que = MSW(sts->handle);
2360         req = ha->req_q_map[que];
2361
2362         /* Check for invalid queue pointer */
2363         if (req == NULL ||
2364             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2365                 ql_dbg(ql_dbg_io, vha, 0x3059,
2366                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2367                     "que=%u.\n", sts->handle, req, que);
2368                 return;
2369         }
2370
2371         /* Validate handle. */
2372         if (handle < req->num_outstanding_cmds) {
2373                 sp = req->outstanding_cmds[handle];
2374                 if (!sp) {
2375                         ql_dbg(ql_dbg_io, vha, 0x3075,
2376                             "%s(%ld): Already returned command for status handle (0x%x).\n",
2377                             __func__, vha->host_no, sts->handle);
2378                         return;
2379                 }
2380         } else {
2381                 ql_dbg(ql_dbg_io, vha, 0x3017,
2382                     "Invalid status handle, out of range (0x%x).\n",
2383                     sts->handle);
2384
2385                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2386                         if (IS_P3P_TYPE(ha))
2387                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2388                         else
2389                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2390                         qla2xxx_wake_dpc(vha);
2391                 }
2392                 return;
2393         }
2394
2395         if (sp->cmd_type != TYPE_SRB) {
2396                 req->outstanding_cmds[handle] = NULL;
2397                 ql_dbg(ql_dbg_io, vha, 0x3015,
2398                     "Unknown sp->cmd_type %x %p).\n",
2399                     sp->cmd_type, sp);
2400                 return;
2401         }
2402
2403         /* NVME completion. */
2404         if (sp->type == SRB_NVME_CMD) {
2405                 qla24xx_nvme_iocb_entry(vha, req, pkt);
2406                 return;
2407         }
2408
2409         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2410                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2411                 return;
2412         }
2413
2414         /* Task Management completion. */
2415         if (sp->type == SRB_TM_CMD) {
2416                 qla24xx_tm_iocb_entry(vha, req, pkt);
2417                 return;
2418         }
2419
2420         /* Fast path completion. */
2421         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2422                 qla2x00_process_completed_request(vha, req, handle);
2423
2424                 return;
2425         }
2426
2427         req->outstanding_cmds[handle] = NULL;
2428         cp = GET_CMD_SP(sp);
2429         if (cp == NULL) {
2430                 ql_dbg(ql_dbg_io, vha, 0x3018,
2431                     "Command already returned (0x%x/%p).\n",
2432                     sts->handle, sp);
2433
2434                 return;
2435         }
2436
2437         lscsi_status = scsi_status & STATUS_MASK;
2438
2439         fcport = sp->fcport;
2440
2441         ox_id = 0;
2442         sense_len = par_sense_len = rsp_info_len = resid_len =
2443             fw_resid_len = 0;
2444         if (IS_FWI2_CAPABLE(ha)) {
2445                 if (scsi_status & SS_SENSE_LEN_VALID)
2446                         sense_len = le32_to_cpu(sts24->sense_len);
2447                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2448                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2449                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2450                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
2451                 if (comp_status == CS_DATA_UNDERRUN)
2452                         fw_resid_len = le32_to_cpu(sts24->residual_len);
2453                 rsp_info = sts24->data;
2454                 sense_data = sts24->data;
2455                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2456                 ox_id = le16_to_cpu(sts24->ox_id);
2457                 par_sense_len = sizeof(sts24->data);
2458                 /* Valid values of the retry delay timer are 0x1-0xffef */
2459                 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1) {
2460                         retry_delay = sts24->retry_delay & 0x3fff;
2461                         ql_dbg(ql_dbg_io, sp->vha, 0x3033,
2462                             "%s: scope=%#x retry_delay=%#x\n", __func__,
2463                             sts24->retry_delay >> 14, retry_delay);
2464                 }
2465         } else {
2466                 if (scsi_status & SS_SENSE_LEN_VALID)
2467                         sense_len = le16_to_cpu(sts->req_sense_length);
2468                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2469                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2470                 resid_len = le32_to_cpu(sts->residual_length);
2471                 rsp_info = sts->rsp_info;
2472                 sense_data = sts->req_sense_data;
2473                 par_sense_len = sizeof(sts->req_sense_data);
2474         }
2475
2476         /* Check for any FCP transport errors. */
2477         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2478                 /* Sense data lies beyond any FCP RESPONSE data. */
2479                 if (IS_FWI2_CAPABLE(ha)) {
2480                         sense_data += rsp_info_len;
2481                         par_sense_len -= rsp_info_len;
2482                 }
2483                 if (rsp_info_len > 3 && rsp_info[3]) {
2484                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2485                             "FCP I/O protocol failure (0x%x/0x%x).\n",
2486                             rsp_info_len, rsp_info[3]);
2487
2488                         res = DID_BUS_BUSY << 16;
2489                         goto out;
2490                 }
2491         }
2492
2493         /* Check for overrun. */
2494         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2495             scsi_status & SS_RESIDUAL_OVER)
2496                 comp_status = CS_DATA_OVERRUN;
2497
2498         /*
2499          * Check retry_delay_timer value if we receive a busy or
2500          * queue full.
2501          */
2502         if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2503             lscsi_status == SAM_STAT_BUSY)
2504                 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2505
2506         /*
2507          * Based on Host and scsi status generate status code for Linux
2508          */
2509         switch (comp_status) {
2510         case CS_COMPLETE:
2511         case CS_QUEUE_FULL:
2512                 if (scsi_status == 0) {
2513                         res = DID_OK << 16;
2514                         break;
2515                 }
2516                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2517                         resid = resid_len;
2518                         scsi_set_resid(cp, resid);
2519
2520                         if (!lscsi_status &&
2521                             ((unsigned)(scsi_bufflen(cp) - resid) <
2522                              cp->underflow)) {
2523                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2524                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
2525                                     resid, scsi_bufflen(cp));
2526
2527                                 res = DID_ERROR << 16;
2528                                 break;
2529                         }
2530                 }
2531                 res = DID_OK << 16 | lscsi_status;
2532
2533                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2534                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2535                             "QUEUE FULL detected.\n");
2536                         break;
2537                 }
2538                 logit = 0;
2539                 if (lscsi_status != SS_CHECK_CONDITION)
2540                         break;
2541
2542                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2543                 if (!(scsi_status & SS_SENSE_LEN_VALID))
2544                         break;
2545
2546                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2547                     rsp, res);
2548                 break;
2549
2550         case CS_DATA_UNDERRUN:
2551                 /* Use F/W calculated residual length. */
2552                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2553                 scsi_set_resid(cp, resid);
2554                 if (scsi_status & SS_RESIDUAL_UNDER) {
2555                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2556                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2557                                     "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
2558                                     resid, scsi_bufflen(cp));
2559
2560                                 res = DID_ERROR << 16 | lscsi_status;
2561                                 goto check_scsi_status;
2562                         }
2563
2564                         if (!lscsi_status &&
2565                             ((unsigned)(scsi_bufflen(cp) - resid) <
2566                             cp->underflow)) {
2567                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2568                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
2569                                     resid, scsi_bufflen(cp));
2570
2571                                 res = DID_ERROR << 16;
2572                                 break;
2573                         }
2574                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2575                             lscsi_status != SAM_STAT_BUSY) {
2576                         /*
2577                          * scsi status of task set and busy are considered to be
2578                          * task not completed.
2579                          */
2580
2581                         ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2582                             "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
2583                             resid, scsi_bufflen(cp));
2584
2585                         res = DID_ERROR << 16 | lscsi_status;
2586                         goto check_scsi_status;
2587                 } else {
2588                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2589                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2590                             scsi_status, lscsi_status);
2591                 }
2592
2593                 res = DID_OK << 16 | lscsi_status;
2594                 logit = 0;
2595
2596 check_scsi_status:
2597                 /*
2598                  * Check to see if SCSI Status is non zero. If so report SCSI
2599                  * Status.
2600                  */
2601                 if (lscsi_status != 0) {
2602                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2603                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2604                                     "QUEUE FULL detected.\n");
2605                                 logit = 1;
2606                                 break;
2607                         }
2608                         if (lscsi_status != SS_CHECK_CONDITION)
2609                                 break;
2610
2611                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2612                         if (!(scsi_status & SS_SENSE_LEN_VALID))
2613                                 break;
2614
2615                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
2616                             sense_len, rsp, res);
2617                 }
2618                 break;
2619
2620         case CS_PORT_LOGGED_OUT:
2621         case CS_PORT_CONFIG_CHG:
2622         case CS_PORT_BUSY:
2623         case CS_INCOMPLETE:
2624         case CS_PORT_UNAVAILABLE:
2625         case CS_TIMEOUT:
2626         case CS_RESET:
2627
2628                 /*
2629                  * We are going to have the fc class block the rport
2630                  * while we try to recover so instruct the mid layer
2631                  * to requeue until the class decides how to handle this.
2632                  */
2633                 res = DID_TRANSPORT_DISRUPTED << 16;
2634
2635                 if (comp_status == CS_TIMEOUT) {
2636                         if (IS_FWI2_CAPABLE(ha))
2637                                 break;
2638                         else if ((le16_to_cpu(sts->status_flags) &
2639                             SF_LOGOUT_SENT) == 0)
2640                                 break;
2641                 }
2642
2643                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2644                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2645                                 "Port to be marked lost on fcport=%02x%02x%02x, current "
2646                                 "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
2647                                 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2648                                 port_state_str[atomic_read(&fcport->state)],
2649                                 comp_status);
2650
2651                         qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2652                         qlt_schedule_sess_for_deletion_lock(fcport);
2653                 }
2654
2655                 break;
2656
2657         case CS_ABORTED:
2658                 res = DID_RESET << 16;
2659                 break;
2660
2661         case CS_DIF_ERROR:
2662                 logit = qla2x00_handle_dif_error(sp, sts24);
2663                 res = cp->result;
2664                 break;
2665
2666         case CS_TRANSPORT:
2667                 res = DID_ERROR << 16;
2668
2669                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2670                         break;
2671
2672                 if (state_flags & BIT_4)
2673                         scmd_printk(KERN_WARNING, cp,
2674                             "Unsupported device '%s' found.\n",
2675                             cp->device->vendor);
2676                 break;
2677
2678         default:
2679                 res = DID_ERROR << 16;
2680                 break;
2681         }
2682
2683 out:
2684         if (logit)
2685                 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2686                     "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2687                     "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2688                     "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
2689                     comp_status, scsi_status, res, vha->host_no,
2690                     cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2691                     fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2692                     cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2693                     resid_len, fw_resid_len, sp, cp);
2694
2695         if (rsp->status_srb == NULL)
2696                 sp->done(sp, res);
2697 }
2698
2699 /**
2700  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2701  * @ha: SCSI driver HA context
2702  * @pkt: Entry pointer
2703  *
2704  * Extended sense data.
2705  */
2706 static void
2707 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2708 {
2709         uint8_t sense_sz = 0;
2710         struct qla_hw_data *ha = rsp->hw;
2711         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2712         srb_t *sp = rsp->status_srb;
2713         struct scsi_cmnd *cp;
2714         uint32_t sense_len;
2715         uint8_t *sense_ptr;
2716
2717         if (!sp || !GET_CMD_SENSE_LEN(sp))
2718                 return;
2719
2720         sense_len = GET_CMD_SENSE_LEN(sp);
2721         sense_ptr = GET_CMD_SENSE_PTR(sp);
2722
2723         cp = GET_CMD_SP(sp);
2724         if (cp == NULL) {
2725                 ql_log(ql_log_warn, vha, 0x3025,
2726                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2727
2728                 rsp->status_srb = NULL;
2729                 return;
2730         }
2731
2732         if (sense_len > sizeof(pkt->data))
2733                 sense_sz = sizeof(pkt->data);
2734         else
2735                 sense_sz = sense_len;
2736
2737         /* Move sense data. */
2738         if (IS_FWI2_CAPABLE(ha))
2739                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2740         memcpy(sense_ptr, pkt->data, sense_sz);
2741         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2742                 sense_ptr, sense_sz);
2743
2744         sense_len -= sense_sz;
2745         sense_ptr += sense_sz;
2746
2747         SET_CMD_SENSE_PTR(sp, sense_ptr);
2748         SET_CMD_SENSE_LEN(sp, sense_len);
2749
2750         /* Place command on done queue. */
2751         if (sense_len == 0) {
2752                 rsp->status_srb = NULL;
2753                 sp->done(sp, cp->result);
2754         }
2755 }
2756
2757 /**
2758  * qla2x00_error_entry() - Process an error entry.
2759  * @ha: SCSI driver HA context
2760  * @pkt: Entry pointer
2761  * return : 1=allow further error analysis. 0=no additional error analysis.
2762  */
2763 static int
2764 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2765 {
2766         srb_t *sp;
2767         struct qla_hw_data *ha = vha->hw;
2768         const char func[] = "ERROR-IOCB";
2769         uint16_t que = MSW(pkt->handle);
2770         struct req_que *req = NULL;
2771         int res = DID_ERROR << 16;
2772
2773         ql_dbg(ql_dbg_async, vha, 0x502a,
2774             "iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
2775             pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
2776
2777         if (que >= ha->max_req_queues || !ha->req_q_map[que])
2778                 goto fatal;
2779
2780         req = ha->req_q_map[que];
2781
2782         if (pkt->entry_status & RF_BUSY)
2783                 res = DID_BUS_BUSY << 16;
2784
2785         if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
2786                 return 0;
2787
2788         switch (pkt->entry_type) {
2789         case NOTIFY_ACK_TYPE:
2790         case STATUS_TYPE:
2791         case STATUS_CONT_TYPE:
2792         case LOGINOUT_PORT_IOCB_TYPE:
2793         case CT_IOCB_TYPE:
2794         case ELS_IOCB_TYPE:
2795         case ABORT_IOCB_TYPE:
2796         case MBX_IOCB_TYPE:
2797         default:
2798                 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2799                 if (sp) {
2800                         sp->done(sp, res);
2801                         return 0;
2802                 }
2803                 break;
2804
2805         case ABTS_RESP_24XX:
2806         case CTIO_TYPE7:
2807         case CTIO_CRC2:
2808                 return 1;
2809         }
2810 fatal:
2811         ql_log(ql_log_warn, vha, 0x5030,
2812             "Error entry - invalid handle/queue (%04x).\n", que);
2813         return 0;
2814 }
2815
2816 /**
2817  * qla24xx_mbx_completion() - Process mailbox command completions.
2818  * @ha: SCSI driver HA context
2819  * @mb0: Mailbox0 register
2820  */
2821 static void
2822 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2823 {
2824         uint16_t        cnt;
2825         uint32_t        mboxes;
2826         uint16_t __iomem *wptr;
2827         struct qla_hw_data *ha = vha->hw;
2828         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2829
2830         /* Read all mbox registers? */
2831         WARN_ON_ONCE(ha->mbx_count > 32);
2832         mboxes = (1ULL << ha->mbx_count) - 1;
2833         if (!ha->mcp)
2834                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2835         else
2836                 mboxes = ha->mcp->in_mb;
2837
2838         /* Load return mailbox registers. */
2839         ha->flags.mbox_int = 1;
2840         ha->mailbox_out[0] = mb0;
2841         mboxes >>= 1;
2842         wptr = (uint16_t __iomem *)&reg->mailbox1;
2843
2844         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2845                 if (mboxes & BIT_0)
2846                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2847
2848                 mboxes >>= 1;
2849                 wptr++;
2850         }
2851 }
2852
2853 static void
2854 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2855         struct abort_entry_24xx *pkt)
2856 {
2857         const char func[] = "ABT_IOCB";
2858         srb_t *sp;
2859         struct srb_iocb *abt;
2860
2861         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2862         if (!sp)
2863                 return;
2864
2865         abt = &sp->u.iocb_cmd;
2866         abt->u.abt.comp_status = le16_to_cpu(pkt->nport_handle);
2867         sp->done(sp, 0);
2868 }
2869
2870 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
2871     struct pt_ls4_request *pkt, struct req_que *req)
2872 {
2873         srb_t *sp;
2874         const char func[] = "LS4_IOCB";
2875         uint16_t comp_status;
2876
2877         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2878         if (!sp)
2879                 return;
2880
2881         comp_status = le16_to_cpu(pkt->status);
2882         sp->done(sp, comp_status);
2883 }
2884
2885 /**
2886  * qla24xx_process_response_queue() - Process response queue entries.
2887  * @ha: SCSI driver HA context
2888  */
2889 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2890         struct rsp_que *rsp)
2891 {
2892         struct sts_entry_24xx *pkt;
2893         struct qla_hw_data *ha = vha->hw;
2894
2895         if (!ha->flags.fw_started)
2896                 return;
2897
2898         if (rsp->qpair->cpuid != smp_processor_id())
2899                 qla_cpu_update(rsp->qpair, smp_processor_id());
2900
2901         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2902                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2903
2904                 rsp->ring_index++;
2905                 if (rsp->ring_index == rsp->length) {
2906                         rsp->ring_index = 0;
2907                         rsp->ring_ptr = rsp->ring;
2908                 } else {
2909                         rsp->ring_ptr++;
2910                 }
2911
2912                 if (pkt->entry_status != 0) {
2913                         if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
2914                                 goto process_err;
2915
2916                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2917                         wmb();
2918                         continue;
2919                 }
2920 process_err:
2921
2922                 switch (pkt->entry_type) {
2923                 case STATUS_TYPE:
2924                         qla2x00_status_entry(vha, rsp, pkt);
2925                         break;
2926                 case STATUS_CONT_TYPE:
2927                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2928                         break;
2929                 case VP_RPT_ID_IOCB_TYPE:
2930                         qla24xx_report_id_acquisition(vha,
2931                             (struct vp_rpt_id_entry_24xx *)pkt);
2932                         break;
2933                 case LOGINOUT_PORT_IOCB_TYPE:
2934                         qla24xx_logio_entry(vha, rsp->req,
2935                             (struct logio_entry_24xx *)pkt);
2936                         break;
2937                 case CT_IOCB_TYPE:
2938                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2939                         break;
2940                 case ELS_IOCB_TYPE:
2941                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2942                         break;
2943                 case ABTS_RECV_24XX:
2944                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
2945                                 /* ensure that the ATIO queue is empty */
2946                                 qlt_handle_abts_recv(vha, rsp,
2947                                     (response_t *)pkt);
2948                                 break;
2949                         } else {
2950                                 /* drop through */
2951                                 qlt_24xx_process_atio_queue(vha, 1);
2952                         }
2953                 case ABTS_RESP_24XX:
2954                 case CTIO_TYPE7:
2955                 case CTIO_CRC2:
2956                         qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
2957                         break;
2958                 case PT_LS4_REQUEST:
2959                         qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
2960                             rsp->req);
2961                         break;
2962                 case NOTIFY_ACK_TYPE:
2963                         if (pkt->handle == QLA_TGT_SKIP_HANDLE)
2964                                 qlt_response_pkt_all_vps(vha, rsp,
2965                                     (response_t *)pkt);
2966                         else
2967                                 qla24xxx_nack_iocb_entry(vha, rsp->req,
2968                                         (struct nack_to_isp *)pkt);
2969                         break;
2970                 case MARKER_TYPE:
2971                         /* Do nothing in this case, this check is to prevent it
2972                          * from falling into default case
2973                          */
2974                         break;
2975                 case ABORT_IOCB_TYPE:
2976                         qla24xx_abort_iocb_entry(vha, rsp->req,
2977                             (struct abort_entry_24xx *)pkt);
2978                         break;
2979                 case MBX_IOCB_TYPE:
2980                         qla24xx_mbx_iocb_entry(vha, rsp->req,
2981                             (struct mbx_24xx_entry *)pkt);
2982                         break;
2983                 default:
2984                         /* Type Not Supported. */
2985                         ql_dbg(ql_dbg_async, vha, 0x5042,
2986                             "Received unknown response pkt type %x "
2987                             "entry status=%x.\n",
2988                             pkt->entry_type, pkt->entry_status);
2989                         break;
2990                 }
2991                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2992                 wmb();
2993         }
2994
2995         /* Adjust ring index */
2996         if (IS_P3P_TYPE(ha)) {
2997                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2998                 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2999         } else {
3000                 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
3001         }
3002 }
3003
3004 static void
3005 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
3006 {
3007         int rval;
3008         uint32_t cnt;
3009         struct qla_hw_data *ha = vha->hw;
3010         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3011
3012         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3013             !IS_QLA27XX(ha))
3014                 return;
3015
3016         rval = QLA_SUCCESS;
3017         WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
3018         RD_REG_DWORD(&reg->iobase_addr);
3019         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
3020         for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
3021             rval == QLA_SUCCESS; cnt--) {
3022                 if (cnt) {
3023                         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
3024                         udelay(10);
3025                 } else
3026                         rval = QLA_FUNCTION_TIMEOUT;
3027         }
3028         if (rval == QLA_SUCCESS)
3029                 goto next_test;
3030
3031         rval = QLA_SUCCESS;
3032         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
3033         for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
3034             rval == QLA_SUCCESS; cnt--) {
3035                 if (cnt) {
3036                         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
3037                         udelay(10);
3038                 } else
3039                         rval = QLA_FUNCTION_TIMEOUT;
3040         }
3041         if (rval != QLA_SUCCESS)
3042                 goto done;
3043
3044 next_test:
3045         if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
3046                 ql_log(ql_log_info, vha, 0x504c,
3047                     "Additional code -- 0x55AA.\n");
3048
3049 done:
3050         WRT_REG_DWORD(&reg->iobase_window, 0x0000);
3051         RD_REG_DWORD(&reg->iobase_window);
3052 }
3053
3054 /**
3055  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
3056  * @irq:
3057  * @dev_id: SCSI driver HA context
3058  *
3059  * Called by system whenever the host adapter generates an interrupt.
3060  *
3061  * Returns handled flag.
3062  */
3063 irqreturn_t
3064 qla24xx_intr_handler(int irq, void *dev_id)
3065 {
3066         scsi_qla_host_t *vha;
3067         struct qla_hw_data *ha;
3068         struct device_reg_24xx __iomem *reg;
3069         int             status;
3070         unsigned long   iter;
3071         uint32_t        stat;
3072         uint32_t        hccr;
3073         uint16_t        mb[8];
3074         struct rsp_que *rsp;
3075         unsigned long   flags;
3076
3077         rsp = (struct rsp_que *) dev_id;
3078         if (!rsp) {
3079                 ql_log(ql_log_info, NULL, 0x5059,
3080                     "%s: NULL response queue pointer.\n", __func__);
3081                 return IRQ_NONE;
3082         }
3083
3084         ha = rsp->hw;
3085         reg = &ha->iobase->isp24;
3086         status = 0;
3087
3088         if (unlikely(pci_channel_offline(ha->pdev)))
3089                 return IRQ_HANDLED;
3090
3091         spin_lock_irqsave(&ha->hardware_lock, flags);
3092         vha = pci_get_drvdata(ha->pdev);
3093         for (iter = 50; iter--; ) {
3094                 stat = RD_REG_DWORD(&reg->host_status);
3095                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3096                         break;
3097                 if (stat & HSRX_RISC_PAUSED) {
3098                         if (unlikely(pci_channel_offline(ha->pdev)))
3099                                 break;
3100
3101                         hccr = RD_REG_DWORD(&reg->hccr);
3102
3103                         ql_log(ql_log_warn, vha, 0x504b,
3104                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3105                             hccr);
3106
3107                         qla2xxx_check_risc_status(vha);
3108
3109                         ha->isp_ops->fw_dump(vha, 1);
3110                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3111                         break;
3112                 } else if ((stat & HSRX_RISC_INT) == 0)
3113                         break;
3114
3115                 switch (stat & 0xff) {
3116                 case INTR_ROM_MB_SUCCESS:
3117                 case INTR_ROM_MB_FAILED:
3118                 case INTR_MB_SUCCESS:
3119                 case INTR_MB_FAILED:
3120                         qla24xx_mbx_completion(vha, MSW(stat));
3121                         status |= MBX_INTERRUPT;
3122
3123                         break;
3124                 case INTR_ASYNC_EVENT:
3125                         mb[0] = MSW(stat);
3126                         mb[1] = RD_REG_WORD(&reg->mailbox1);
3127                         mb[2] = RD_REG_WORD(&reg->mailbox2);
3128                         mb[3] = RD_REG_WORD(&reg->mailbox3);
3129                         qla2x00_async_event(vha, rsp, mb);
3130                         break;
3131                 case INTR_RSP_QUE_UPDATE:
3132                 case INTR_RSP_QUE_UPDATE_83XX:
3133                         qla24xx_process_response_queue(vha, rsp);
3134                         break;
3135                 case INTR_ATIO_QUE_UPDATE:{
3136                         unsigned long flags2;
3137                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
3138                         qlt_24xx_process_atio_queue(vha, 1);
3139                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
3140                         break;
3141                 }
3142                 case INTR_ATIO_RSP_QUE_UPDATE: {
3143                         unsigned long flags2;
3144                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
3145                         qlt_24xx_process_atio_queue(vha, 1);
3146                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
3147
3148                         qla24xx_process_response_queue(vha, rsp);
3149                         break;
3150                 }
3151                 default:
3152                         ql_dbg(ql_dbg_async, vha, 0x504f,
3153                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
3154                         break;
3155                 }
3156                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3157                 RD_REG_DWORD_RELAXED(&reg->hccr);
3158                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
3159                         ndelay(3500);
3160         }
3161         qla2x00_handle_mbx_completion(ha, status);
3162         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3163
3164         return IRQ_HANDLED;
3165 }
3166
3167 static irqreturn_t
3168 qla24xx_msix_rsp_q(int irq, void *dev_id)
3169 {
3170         struct qla_hw_data *ha;
3171         struct rsp_que *rsp;
3172         struct device_reg_24xx __iomem *reg;
3173         struct scsi_qla_host *vha;
3174         unsigned long flags;
3175
3176         rsp = (struct rsp_que *) dev_id;
3177         if (!rsp) {
3178                 ql_log(ql_log_info, NULL, 0x505a,
3179                     "%s: NULL response queue pointer.\n", __func__);
3180                 return IRQ_NONE;
3181         }
3182         ha = rsp->hw;
3183         reg = &ha->iobase->isp24;
3184
3185         spin_lock_irqsave(&ha->hardware_lock, flags);
3186
3187         vha = pci_get_drvdata(ha->pdev);
3188         qla24xx_process_response_queue(vha, rsp);
3189         if (!ha->flags.disable_msix_handshake) {
3190                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3191                 RD_REG_DWORD_RELAXED(&reg->hccr);
3192         }
3193         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3194
3195         return IRQ_HANDLED;
3196 }
3197
3198 static irqreturn_t
3199 qla24xx_msix_default(int irq, void *dev_id)
3200 {
3201         scsi_qla_host_t *vha;
3202         struct qla_hw_data *ha;
3203         struct rsp_que *rsp;
3204         struct device_reg_24xx __iomem *reg;
3205         int             status;
3206         uint32_t        stat;
3207         uint32_t        hccr;
3208         uint16_t        mb[8];
3209         unsigned long flags;
3210
3211         rsp = (struct rsp_que *) dev_id;
3212         if (!rsp) {
3213                 ql_log(ql_log_info, NULL, 0x505c,
3214                     "%s: NULL response queue pointer.\n", __func__);
3215                 return IRQ_NONE;
3216         }
3217         ha = rsp->hw;
3218         reg = &ha->iobase->isp24;
3219         status = 0;
3220
3221         spin_lock_irqsave(&ha->hardware_lock, flags);
3222         vha = pci_get_drvdata(ha->pdev);
3223         do {
3224                 stat = RD_REG_DWORD(&reg->host_status);
3225                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3226                         break;
3227                 if (stat & HSRX_RISC_PAUSED) {
3228                         if (unlikely(pci_channel_offline(ha->pdev)))
3229                                 break;
3230
3231                         hccr = RD_REG_DWORD(&reg->hccr);
3232
3233                         ql_log(ql_log_info, vha, 0x5050,
3234                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3235                             hccr);
3236
3237                         qla2xxx_check_risc_status(vha);
3238
3239                         ha->isp_ops->fw_dump(vha, 1);
3240                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3241                         break;
3242                 } else if ((stat & HSRX_RISC_INT) == 0)
3243                         break;
3244
3245                 switch (stat & 0xff) {
3246                 case INTR_ROM_MB_SUCCESS:
3247                 case INTR_ROM_MB_FAILED:
3248                 case INTR_MB_SUCCESS:
3249                 case INTR_MB_FAILED:
3250                         qla24xx_mbx_completion(vha, MSW(stat));
3251                         status |= MBX_INTERRUPT;
3252
3253                         break;
3254                 case INTR_ASYNC_EVENT:
3255                         mb[0] = MSW(stat);
3256                         mb[1] = RD_REG_WORD(&reg->mailbox1);
3257                         mb[2] = RD_REG_WORD(&reg->mailbox2);
3258                         mb[3] = RD_REG_WORD(&reg->mailbox3);
3259                         qla2x00_async_event(vha, rsp, mb);
3260                         break;
3261                 case INTR_RSP_QUE_UPDATE:
3262                 case INTR_RSP_QUE_UPDATE_83XX:
3263                         qla24xx_process_response_queue(vha, rsp);
3264                         break;
3265                 case INTR_ATIO_QUE_UPDATE:{
3266                         unsigned long flags2;
3267                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
3268                         qlt_24xx_process_atio_queue(vha, 1);
3269                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
3270                         break;
3271                 }
3272                 case INTR_ATIO_RSP_QUE_UPDATE: {
3273                         unsigned long flags2;
3274                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
3275                         qlt_24xx_process_atio_queue(vha, 1);
3276                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
3277
3278                         qla24xx_process_response_queue(vha, rsp);
3279                         break;
3280                 }
3281                 default:
3282                         ql_dbg(ql_dbg_async, vha, 0x5051,
3283                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
3284                         break;
3285                 }
3286                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3287         } while (0);
3288         qla2x00_handle_mbx_completion(ha, status);
3289         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3290
3291         return IRQ_HANDLED;
3292 }
3293
3294 irqreturn_t
3295 qla2xxx_msix_rsp_q(int irq, void *dev_id)
3296 {
3297         struct qla_hw_data *ha;
3298         struct qla_qpair *qpair;
3299         struct device_reg_24xx __iomem *reg;
3300         unsigned long flags;
3301
3302         qpair = dev_id;
3303         if (!qpair) {
3304                 ql_log(ql_log_info, NULL, 0x505b,
3305                     "%s: NULL response queue pointer.\n", __func__);
3306                 return IRQ_NONE;
3307         }
3308         ha = qpair->hw;
3309
3310         /* Clear the interrupt, if enabled, for this response queue */
3311         if (unlikely(!ha->flags.disable_msix_handshake)) {
3312                 reg = &ha->iobase->isp24;
3313                 spin_lock_irqsave(&ha->hardware_lock, flags);
3314                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3315                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3316         }
3317
3318         queue_work(ha->wq, &qpair->q_work);
3319
3320         return IRQ_HANDLED;
3321 }
3322
3323 /* Interrupt handling helpers. */
3324
3325 struct qla_init_msix_entry {
3326         const char *name;
3327         irq_handler_t handler;
3328 };
3329
3330 static const struct qla_init_msix_entry msix_entries[] = {
3331         { "default", qla24xx_msix_default },
3332         { "rsp_q", qla24xx_msix_rsp_q },
3333         { "atio_q", qla83xx_msix_atio_q },
3334         { "qpair_multiq", qla2xxx_msix_rsp_q },
3335 };
3336
3337 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
3338         { "qla2xxx (default)", qla82xx_msix_default },
3339         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3340 };
3341
3342 static int
3343 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3344 {
3345         int i, ret;
3346         struct qla_msix_entry *qentry;
3347         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3348         int min_vecs = QLA_BASE_VECTORS;
3349         struct irq_affinity desc = {
3350                 .pre_vectors = QLA_BASE_VECTORS,
3351         };
3352
3353         if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
3354                 desc.pre_vectors++;
3355                 min_vecs++;
3356         }
3357
3358         if (USER_CTRL_IRQ(ha)) {
3359                 /* user wants to control IRQ setting for target mode */
3360                 ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
3361                     ha->msix_count, PCI_IRQ_MSIX);
3362         } else
3363                 ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
3364                     ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
3365                     &desc);
3366
3367         if (ret < 0) {
3368                 ql_log(ql_log_fatal, vha, 0x00c7,
3369                     "MSI-X: Failed to enable support, "
3370                     "giving   up -- %d/%d.\n",
3371                     ha->msix_count, ret);
3372                 goto msix_out;
3373         } else if (ret < ha->msix_count) {
3374                 ql_log(ql_log_info, vha, 0x00c6,
3375                     "MSI-X: Using %d vectors\n", ret);
3376                 ha->msix_count = ret;
3377                 /* Recalculate queue values */
3378                 if (ha->mqiobase && ql2xmqsupport) {
3379                         ha->max_req_queues = ha->msix_count - 1;
3380
3381                         /* ATIOQ needs 1 vector. That's 1 less QPair */
3382                         if (QLA_TGT_MODE_ENABLED())
3383                                 ha->max_req_queues--;
3384
3385                         ha->max_rsp_queues = ha->max_req_queues;
3386
3387                         ha->max_qpairs = ha->max_req_queues - 1;
3388                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
3389                             "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
3390                 }
3391         }
3392         ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
3393                                 ha->msix_count, GFP_KERNEL);
3394         if (!ha->msix_entries) {
3395                 ql_log(ql_log_fatal, vha, 0x00c8,
3396                     "Failed to allocate memory for ha->msix_entries.\n");
3397                 ret = -ENOMEM;
3398                 goto free_irqs;
3399         }
3400         ha->flags.msix_enabled = 1;
3401
3402         for (i = 0; i < ha->msix_count; i++) {
3403                 qentry = &ha->msix_entries[i];
3404                 qentry->vector = pci_irq_vector(ha->pdev, i);
3405                 qentry->entry = i;
3406                 qentry->have_irq = 0;
3407                 qentry->in_use = 0;
3408                 qentry->handle = NULL;
3409         }
3410
3411         /* Enable MSI-X vectors for the base queue */
3412         for (i = 0; i < QLA_BASE_VECTORS; i++) {
3413                 qentry = &ha->msix_entries[i];
3414                 qentry->handle = rsp;
3415                 rsp->msix = qentry;
3416                 scnprintf(qentry->name, sizeof(qentry->name),
3417                     "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
3418                 if (IS_P3P_TYPE(ha))
3419                         ret = request_irq(qentry->vector,
3420                                 qla82xx_msix_entries[i].handler,
3421                                 0, qla82xx_msix_entries[i].name, rsp);
3422                 else
3423                         ret = request_irq(qentry->vector,
3424                                 msix_entries[i].handler,
3425                                 0, qentry->name, rsp);
3426                 if (ret)
3427                         goto msix_register_fail;
3428                 qentry->have_irq = 1;
3429                 qentry->in_use = 1;
3430         }
3431
3432         /*
3433          * If target mode is enable, also request the vector for the ATIO
3434          * queue.
3435          */
3436         if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
3437                 qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
3438                 rsp->msix = qentry;
3439                 qentry->handle = rsp;
3440                 scnprintf(qentry->name, sizeof(qentry->name),
3441                     "qla2xxx%lu_%s", vha->host_no,
3442                     msix_entries[QLA_ATIO_VECTOR].name);
3443                 qentry->in_use = 1;
3444                 ret = request_irq(qentry->vector,
3445                         msix_entries[QLA_ATIO_VECTOR].handler,
3446                         0, qentry->name, rsp);
3447                 qentry->have_irq = 1;
3448         }
3449
3450 msix_register_fail:
3451         if (ret) {
3452                 ql_log(ql_log_fatal, vha, 0x00cb,
3453                     "MSI-X: unable to register handler -- %x/%d.\n",
3454                     qentry->vector, ret);
3455                 qla2x00_free_irqs(vha);
3456                 ha->mqenable = 0;
3457                 goto msix_out;
3458         }
3459
3460         /* Enable MSI-X vector for response queue update for queue 0 */
3461         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3462                 if (ha->msixbase && ha->mqiobase &&
3463                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3464                      ql2xmqsupport))
3465                         ha->mqenable = 1;
3466         } else
3467                 if (ha->mqiobase &&
3468                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3469                      ql2xmqsupport))
3470                         ha->mqenable = 1;
3471         ql_dbg(ql_dbg_multiq, vha, 0xc005,
3472             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3473             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3474         ql_dbg(ql_dbg_init, vha, 0x0055,
3475             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3476             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3477
3478 msix_out:
3479         return ret;
3480
3481 free_irqs:
3482         pci_free_irq_vectors(ha->pdev);
3483         goto msix_out;
3484 }
3485
3486 int
3487 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3488 {
3489         int ret = QLA_FUNCTION_FAILED;
3490         device_reg_t *reg = ha->iobase;
3491         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3492
3493         /* If possible, enable MSI-X. */
3494         if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3495             !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) &&
3496             !IS_QLA27XX(ha))
3497                 goto skip_msi;
3498
3499         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3500                 (ha->pdev->subsystem_device == 0x7040 ||
3501                 ha->pdev->subsystem_device == 0x7041 ||
3502                 ha->pdev->subsystem_device == 0x1705)) {
3503                 ql_log(ql_log_warn, vha, 0x0034,
3504                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3505                         ha->pdev->subsystem_vendor,
3506                         ha->pdev->subsystem_device);
3507                 goto skip_msi;
3508         }
3509
3510         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3511                 ql_log(ql_log_warn, vha, 0x0035,
3512                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3513                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3514                 goto skip_msix;
3515         }
3516
3517         ret = qla24xx_enable_msix(ha, rsp);
3518         if (!ret) {
3519                 ql_dbg(ql_dbg_init, vha, 0x0036,
3520                     "MSI-X: Enabled (0x%X, 0x%X).\n",
3521                     ha->chip_revision, ha->fw_attributes);
3522                 goto clear_risc_ints;
3523         }
3524
3525 skip_msix:
3526
3527         ql_log(ql_log_info, vha, 0x0037,
3528             "Falling back-to MSI mode -- ret=%d.\n", ret);
3529
3530         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3531             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3532             !IS_QLA27XX(ha))
3533                 goto skip_msi;
3534
3535         ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
3536         if (ret > 0) {
3537                 ql_dbg(ql_dbg_init, vha, 0x0038,
3538                     "MSI: Enabled.\n");
3539                 ha->flags.msi_enabled = 1;
3540         } else
3541                 ql_log(ql_log_warn, vha, 0x0039,
3542                     "Falling back-to INTa mode -- ret=%d.\n", ret);
3543 skip_msi:
3544
3545         /* Skip INTx on ISP82xx. */
3546         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3547                 return QLA_FUNCTION_FAILED;
3548
3549         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3550             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3551             QLA2XXX_DRIVER_NAME, rsp);
3552         if (ret) {
3553                 ql_log(ql_log_warn, vha, 0x003a,
3554                     "Failed to reserve interrupt %d already in use.\n",
3555                     ha->pdev->irq);
3556                 goto fail;
3557         } else if (!ha->flags.msi_enabled) {
3558                 ql_dbg(ql_dbg_init, vha, 0x0125,
3559                     "INTa mode: Enabled.\n");
3560                 ha->flags.mr_intr_valid = 1;
3561         }
3562
3563 clear_risc_ints:
3564         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3565                 goto fail;
3566
3567         spin_lock_irq(&ha->hardware_lock);
3568         WRT_REG_WORD(&reg->isp.semaphore, 0);
3569         spin_unlock_irq(&ha->hardware_lock);
3570
3571 fail:
3572         return ret;
3573 }
3574
3575 void
3576 qla2x00_free_irqs(scsi_qla_host_t *vha)
3577 {
3578         struct qla_hw_data *ha = vha->hw;
3579         struct rsp_que *rsp;
3580         struct qla_msix_entry *qentry;
3581         int i;
3582
3583         /*
3584          * We need to check that ha->rsp_q_map is valid in case we are called
3585          * from a probe failure context.
3586          */
3587         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3588                 goto free_irqs;
3589         rsp = ha->rsp_q_map[0];
3590
3591         if (ha->flags.msix_enabled) {
3592                 for (i = 0; i < ha->msix_count; i++) {
3593                         qentry = &ha->msix_entries[i];
3594                         if (qentry->have_irq) {
3595                                 irq_set_affinity_notifier(qentry->vector, NULL);
3596                                 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
3597                         }
3598                 }
3599                 kfree(ha->msix_entries);
3600                 ha->msix_entries = NULL;
3601                 ha->flags.msix_enabled = 0;
3602                 ql_dbg(ql_dbg_init, vha, 0x0042,
3603                         "Disabled MSI-X.\n");
3604         } else {
3605                 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
3606         }
3607
3608 free_irqs:
3609         pci_free_irq_vectors(ha->pdev);
3610 }
3611
3612 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
3613         struct qla_msix_entry *msix, int vector_type)
3614 {
3615         const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
3616         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3617         int ret;
3618
3619         scnprintf(msix->name, sizeof(msix->name),
3620             "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
3621         ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
3622         if (ret) {
3623                 ql_log(ql_log_fatal, vha, 0x00e6,
3624                     "MSI-X: Unable to register handler -- %x/%d.\n",
3625                     msix->vector, ret);
3626                 return ret;
3627         }
3628         msix->have_irq = 1;
3629         msix->handle = qpair;
3630         return ret;
3631 }