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 <scsi/scsi_tcq.h>
  13 #include <scsi/scsi_bsg_fc.h>
  14 #include <scsi/scsi_eh.h>
  15
  16 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
  17 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
  18 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
  19 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
  20         sts_entry_t *);
  21
  22 /**
  23  * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
  24  * @irq:
  25  * @dev_id: SCSI driver HA context
  26  *
  27  * Called by system whenever the host adapter generates an interrupt.
  28  *
  29  * Returns handled flag.
  30  */
  31 irqreturn_t
  32 qla2100_intr_handler(int irq, void *dev_id)
  33 {
  34         scsi_qla_host_t *vha;
  35         struct qla_hw_data *ha;
  36         struct device_reg_2xxx __iomem *reg;
  37         int             status;
  38         unsigned long   iter;
  39         uint16_t        hccr;
  40         uint16_t        mb[4];
  41         struct rsp_que *rsp;
  42         unsigned long   flags;
  43
  44         rsp = (struct rsp_que *) dev_id;
  45         if (!rsp) {
  46                 ql_log(ql_log_info, NULL, 0x505d,
  47                     "%s: NULL response queue pointer.\n", __func__);
  48                 return (IRQ_NONE);
  49         }
  50
  51         ha = rsp->hw;
  52         reg = &ha->iobase->isp;
  53         status = 0;
  54
  55         spin_lock_irqsave(&ha->hardware_lock, flags);
  56         vha = pci_get_drvdata(ha->pdev);
  57         for (iter = 50; iter--; ) {
  58                 hccr = RD_REG_WORD(&reg->hccr);
  59                 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
  60                         break;
  61                 if (hccr & HCCR_RISC_PAUSE) {
  62                         if (pci_channel_offline(ha->pdev))
  63                                 break;
  64
  65                         /*
  66                          * Issue a "HARD" reset in order for the RISC interrupt
  67                          * bit to be cleared.  Schedule a big hammer to get
  68                          * out of the RISC PAUSED state.
  69                          */
  70                         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
  71                         RD_REG_WORD(&reg->hccr);
  72
  73                         ha->isp_ops->fw_dump(vha, 1);
  74                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
  75                         break;
  76                 } else if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
  77                         break;
  78
  79                 if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
  80                         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
  81                         RD_REG_WORD(&reg->hccr);
  82
  83                         /* Get mailbox data. */
  84                         mb[0] = RD_MAILBOX_REG(ha, reg, 0);
  85                         if (mb[0] > 0x3fff && mb[0] < 0x8000) {
  86                                 qla2x00_mbx_completion(vha, mb[0]);
  87                                 status |= MBX_INTERRUPT;
  88                         } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
  89                                 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
  90                                 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
  91                                 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
  92                                 qla2x00_async_event(vha, rsp, mb);
  93                         } else {
  94                                 /*EMPTY*/
  95                                 ql_dbg(ql_dbg_async, vha, 0x5025,
  96                                     "Unrecognized interrupt type (%d).\n",
  97                                     mb[0]);
  98                         }
  99                         /* Release mailbox registers. */
 100                         WRT_REG_WORD(&reg->semaphore, 0);
 101                         RD_REG_WORD(&reg->semaphore);
 102                 } else {
 103                         qla2x00_process_response_queue(rsp);
 104
 105                         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 106                         RD_REG_WORD(&reg->hccr);
 107                 }
 108         }
 109         qla2x00_handle_mbx_completion(ha, status);
 110         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 111
 112         return (IRQ_HANDLED);
 113 }
 114
 115 bool
 116 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
 117 {
 118         /* Check for PCI disconnection */
 119         if (reg == 0xffffffff) {
 120                 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
 121                     !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
 122                     !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
 123                         /*
 124                          * Schedule this (only once) on the default system
 125                          * workqueue so that all the adapter workqueues and the
 126                          * DPC thread can be shutdown cleanly.
 127                          */
 128                         schedule_work(&vha->hw->board_disable);
 129                 }
 130                 return true;
 131         } else
 132                 return false;
 133 }
 134
 135 bool
 136 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
 137 {
 138         return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
 139 }
 140
 141 /**
 142  * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 143  * @irq:
 144  * @dev_id: SCSI driver HA context
 145  *
 146  * Called by system whenever the host adapter generates an interrupt.
 147  *
 148  * Returns handled flag.
 149  */
 150 irqreturn_t
 151 qla2300_intr_handler(int irq, void *dev_id)
 152 {
 153         scsi_qla_host_t *vha;
 154         struct device_reg_2xxx __iomem *reg;
 155         int             status;
 156         unsigned long   iter;
 157         uint32_t        stat;
 158         uint16_t        hccr;
 159         uint16_t        mb[4];
 160         struct rsp_que *rsp;
 161         struct qla_hw_data *ha;
 162         unsigned long   flags;
 163
 164         rsp = (struct rsp_que *) dev_id;
 165         if (!rsp) {
 166                 ql_log(ql_log_info, NULL, 0x5058,
 167                     "%s: NULL response queue pointer.\n", __func__);
 168                 return (IRQ_NONE);
 169         }
 170
 171         ha = rsp->hw;
 172         reg = &ha->iobase->isp;
 173         status = 0;
 174
 175         spin_lock_irqsave(&ha->hardware_lock, flags);
 176         vha = pci_get_drvdata(ha->pdev);
 177         for (iter = 50; iter--; ) {
 178                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
 179                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
 180                         break;
 181                 if (stat & HSR_RISC_PAUSED) {
 182                         if (unlikely(pci_channel_offline(ha->pdev)))
 183                                 break;
 184
 185                         hccr = RD_REG_WORD(&reg->hccr);
 186
 187                         if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
 188                                 ql_log(ql_log_warn, vha, 0x5026,
 189                                     "Parity error -- HCCR=%x, Dumping "
 190                                     "firmware.\n", hccr);
 191                         else
 192                                 ql_log(ql_log_warn, vha, 0x5027,
 193                                     "RISC paused -- HCCR=%x, Dumping "
 194                                     "firmware.\n", hccr);
 195
 196                         /*
 197                          * Issue a "HARD" reset in order for the RISC
 198                          * interrupt bit to be cleared.  Schedule a big
 199                          * hammer to get out of the RISC PAUSED state.
 200                          */
 201                         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 202                         RD_REG_WORD(&reg->hccr);
 203
 204                         ha->isp_ops->fw_dump(vha, 1);
 205                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 206                         break;
 207                 } else if ((stat & HSR_RISC_INT) == 0)
 208                         break;
 209
 210                 switch (stat & 0xff) {
 211                 case 0x1:
 212                 case 0x2:
 213                 case 0x10:
 214                 case 0x11:
 215                         qla2x00_mbx_completion(vha, MSW(stat));
 216                         status |= MBX_INTERRUPT;
 217
 218                         /* Release mailbox registers. */
 219                         WRT_REG_WORD(&reg->semaphore, 0);
 220                         break;
 221                 case 0x12:
 222                         mb[0] = MSW(stat);
 223                         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 224                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 225                         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 226                         qla2x00_async_event(vha, rsp, mb);
 227                         break;
 228                 case 0x13:
 229                         qla2x00_process_response_queue(rsp);
 230                         break;
 231                 case 0x15:
 232                         mb[0] = MBA_CMPLT_1_16BIT;
 233                         mb[1] = MSW(stat);
 234                         qla2x00_async_event(vha, rsp, mb);
 235                         break;
 236                 case 0x16:
 237                         mb[0] = MBA_SCSI_COMPLETION;
 238                         mb[1] = MSW(stat);
 239                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 240                         qla2x00_async_event(vha, rsp, mb);
 241                         break;
 242                 default:
 243                         ql_dbg(ql_dbg_async, vha, 0x5028,
 244                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
 245                         break;
 246                 }
 247                 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 248                 RD_REG_WORD_RELAXED(&reg->hccr);
 249         }
 250         qla2x00_handle_mbx_completion(ha, status);
 251         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 252
 253         return (IRQ_HANDLED);
 254 }
 255
 256 /**
 257  * qla2x00_mbx_completion() - Process mailbox command completions.
 258  * @ha: SCSI driver HA context
 259  * @mb0: Mailbox0 register
 260  */
 261 static void
 262 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 263 {
 264         uint16_t        cnt;
 265         uint32_t        mboxes;
 266         uint16_t __iomem *wptr;
 267         struct qla_hw_data *ha = vha->hw;
 268         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 269
 270         /* Read all mbox registers? */
 271         mboxes = (1 << ha->mbx_count) - 1;
 272         if (!ha->mcp)
 273                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 274         else
 275                 mboxes = ha->mcp->in_mb;
 276
 277         /* Load return mailbox registers. */
 278         ha->flags.mbox_int = 1;
 279         ha->mailbox_out[0] = mb0;
 280         mboxes >>= 1;
 281         wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
 282
 283         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 284                 if (IS_QLA2200(ha) && cnt == 8)
 285                         wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
 286                 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 287                         ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 288                 else if (mboxes & BIT_0)
 289                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
 290
 291                 wptr++;
 292                 mboxes >>= 1;
 293         }
 294 }
 295
 296 static void
 297 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 298 {
 299         static char *event[] =
 300                 { "Complete", "Request Notification", "Time Extension" };
 301         int rval;
 302         struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 303         struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 304         uint16_t __iomem *wptr;
 305         uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 306
 307         /* Seed data -- mailbox1 -> mailbox7. */
 308         if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 309                 wptr = (uint16_t __iomem *)&reg24->mailbox1;
 310         else if (IS_QLA8044(vha->hw))
 311                 wptr = (uint16_t __iomem *)&reg82->mailbox_out[1];
 312         else
 313                 return;
 314
 315         for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 316                 mb[cnt] = RD_REG_WORD(wptr);
 317
 318         ql_dbg(ql_dbg_async, vha, 0x5021,
 319             "Inter-Driver Communication %s -- "
 320             "%04x %04x %04x %04x %04x %04x %04x.\n",
 321             event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 322             mb[4], mb[5], mb[6]);
 323         switch (aen) {
 324         /* Handle IDC Error completion case. */
 325         case MBA_IDC_COMPLETE:
 326                 if (mb[1] >> 15) {
 327                         vha->hw->flags.idc_compl_status = 1;
 328                         if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 329                                 complete(&vha->hw->dcbx_comp);
 330                 }
 331                 break;
 332
 333         case MBA_IDC_NOTIFY:
 334                 /* Acknowledgement needed? [Notify && non-zero timeout]. */
 335                 timeout = (descr >> 8) & 0xf;
 336                 ql_dbg(ql_dbg_async, vha, 0x5022,
 337                     "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 338                     vha->host_no, event[aen & 0xff], timeout);
 339
 340                 if (!timeout)
 341                         return;
 342                 rval = qla2x00_post_idc_ack_work(vha, mb);
 343                 if (rval != QLA_SUCCESS)
 344                         ql_log(ql_log_warn, vha, 0x5023,
 345                             "IDC failed to post ACK.\n");
 346                 break;
 347         case MBA_IDC_TIME_EXT:
 348                 vha->hw->idc_extend_tmo = descr;
 349                 ql_dbg(ql_dbg_async, vha, 0x5087,
 350                     "%lu Inter-Driver Communication %s -- "
 351                     "Extend timeout by=%d.\n",
 352                     vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 353                 break;
 354         }
 355 }
 356
 357 #define LS_UNKNOWN      2
 358 const char *
 359 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 360 {
 361         static const char *const link_speeds[] = {
 362                 "1", "2", "?", "4", "8", "16", "32", "10"
 363         };
 364 #define QLA_LAST_SPEED  7
 365
 366         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 367                 return link_speeds[0];
 368         else if (speed == 0x13)
 369                 return link_speeds[QLA_LAST_SPEED];
 370         else if (speed < QLA_LAST_SPEED)
 371                 return link_speeds[speed];
 372         else
 373                 return link_speeds[LS_UNKNOWN];
 374 }
 375
 376 static void
 377 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 378 {
 379         struct qla_hw_data *ha = vha->hw;
 380
 381         /*
 382          * 8200 AEN Interpretation:
 383          * mb[0] = AEN code
 384          * mb[1] = AEN Reason code
 385          * mb[2] = LSW of Peg-Halt Status-1 Register
 386          * mb[6] = MSW of Peg-Halt Status-1 Register
 387          * mb[3] = LSW of Peg-Halt Status-2 register
 388          * mb[7] = MSW of Peg-Halt Status-2 register
 389          * mb[4] = IDC Device-State Register value
 390          * mb[5] = IDC Driver-Presence Register value
 391          */
 392         ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 393             "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 394             mb[0], mb[1], mb[2], mb[6]);
 395         ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 396             "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 397             "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 398
 399         if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 400                                 IDC_HEARTBEAT_FAILURE)) {
 401                 ha->flags.nic_core_hung = 1;
 402                 ql_log(ql_log_warn, vha, 0x5060,
 403                     "83XX: F/W Error Reported: Check if reset required.\n");
 404
 405                 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 406                         uint32_t protocol_engine_id, fw_err_code, err_level;
 407
 408                         /*
 409                          * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 410                          *  - PEG-Halt Status-1 Register:
 411                          *      (LSW = mb[2], MSW = mb[6])
 412                          *      Bits 0-7   = protocol-engine ID
 413                          *      Bits 8-28  = f/w error code
 414                          *      Bits 29-31 = Error-level
 415                          *          Error-level 0x1 = Non-Fatal error
 416                          *          Error-level 0x2 = Recoverable Fatal error
 417                          *          Error-level 0x4 = UnRecoverable Fatal error
 418                          *  - PEG-Halt Status-2 Register:
 419                          *      (LSW = mb[3], MSW = mb[7])
 420                          */
 421                         protocol_engine_id = (mb[2] & 0xff);
 422                         fw_err_code = (((mb[2] & 0xff00) >> 8) |
 423                             ((mb[6] & 0x1fff) << 8));
 424                         err_level = ((mb[6] & 0xe000) >> 13);
 425                         ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 426                             "Register: protocol_engine_id=0x%x "
 427                             "fw_err_code=0x%x err_level=0x%x.\n",
 428                             protocol_engine_id, fw_err_code, err_level);
 429                         ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 430                             "Register: 0x%x%x.\n", mb[7], mb[3]);
 431                         if (err_level == ERR_LEVEL_NON_FATAL) {
 432                                 ql_log(ql_log_warn, vha, 0x5063,
 433                                     "Not a fatal error, f/w has recovered "
 434                                     "iteself.\n");
 435                         } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 436                                 ql_log(ql_log_fatal, vha, 0x5064,
 437                                     "Recoverable Fatal error: Chip reset "
 438                                     "required.\n");
 439                                 qla83xx_schedule_work(vha,
 440                                     QLA83XX_NIC_CORE_RESET);
 441                         } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 442                                 ql_log(ql_log_fatal, vha, 0x5065,
 443                                     "Unrecoverable Fatal error: Set FAILED "
 444                                     "state, reboot required.\n");
 445                                 qla83xx_schedule_work(vha,
 446                                     QLA83XX_NIC_CORE_UNRECOVERABLE);
 447                         }
 448                 }
 449
 450                 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 451                         uint16_t peg_fw_state, nw_interface_link_up;
 452                         uint16_t nw_interface_signal_detect, sfp_status;
 453                         uint16_t htbt_counter, htbt_monitor_enable;
 454                         uint16_t sfp_additonal_info, sfp_multirate;
 455                         uint16_t sfp_tx_fault, link_speed, dcbx_status;
 456
 457                         /*
 458                          * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 459                          *  - PEG-to-FC Status Register:
 460                          *      (LSW = mb[2], MSW = mb[6])
 461                          *      Bits 0-7   = Peg-Firmware state
 462                          *      Bit 8      = N/W Interface Link-up
 463                          *      Bit 9      = N/W Interface signal detected
 464                          *      Bits 10-11 = SFP Status
 465                          *        SFP Status 0x0 = SFP+ transceiver not expected
 466                          *        SFP Status 0x1 = SFP+ transceiver not present
 467                          *        SFP Status 0x2 = SFP+ transceiver invalid
 468                          *        SFP Status 0x3 = SFP+ transceiver present and
 469                          *        valid
 470                          *      Bits 12-14 = Heartbeat Counter
 471                          *      Bit 15     = Heartbeat Monitor Enable
 472                          *      Bits 16-17 = SFP Additional Info
 473                          *        SFP info 0x0 = Unregocnized transceiver for
 474                          *        Ethernet
 475                          *        SFP info 0x1 = SFP+ brand validation failed
 476                          *        SFP info 0x2 = SFP+ speed validation failed
 477                          *        SFP info 0x3 = SFP+ access error
 478                          *      Bit 18     = SFP Multirate
 479                          *      Bit 19     = SFP Tx Fault
 480                          *      Bits 20-22 = Link Speed
 481                          *      Bits 23-27 = Reserved
 482                          *      Bits 28-30 = DCBX Status
 483                          *        DCBX Status 0x0 = DCBX Disabled
 484                          *        DCBX Status 0x1 = DCBX Enabled
 485                          *        DCBX Status 0x2 = DCBX Exchange error
 486                          *      Bit 31     = Reserved
 487                          */
 488                         peg_fw_state = (mb[2] & 0x00ff);
 489                         nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 490                         nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 491                         sfp_status = ((mb[2] & 0x0c00) >> 10);
 492                         htbt_counter = ((mb[2] & 0x7000) >> 12);
 493                         htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 494                         sfp_additonal_info = (mb[6] & 0x0003);
 495                         sfp_multirate = ((mb[6] & 0x0004) >> 2);
 496                         sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 497                         link_speed = ((mb[6] & 0x0070) >> 4);
 498                         dcbx_status = ((mb[6] & 0x7000) >> 12);
 499
 500                         ql_log(ql_log_warn, vha, 0x5066,
 501                             "Peg-to-Fc Status Register:\n"
 502                             "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 503                             "nw_interface_signal_detect=0x%x"
 504                             "\nsfp_statis=0x%x.\n ", peg_fw_state,
 505                             nw_interface_link_up, nw_interface_signal_detect,
 506                             sfp_status);
 507                         ql_log(ql_log_warn, vha, 0x5067,
 508                             "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 509                             "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ",
 510                             htbt_counter, htbt_monitor_enable,
 511                             sfp_additonal_info, sfp_multirate);
 512                         ql_log(ql_log_warn, vha, 0x5068,
 513                             "sfp_tx_fault=0x%x, link_state=0x%x, "
 514                             "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 515                             dcbx_status);
 516
 517                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 518                 }
 519
 520                 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 521                         ql_log(ql_log_warn, vha, 0x5069,
 522                             "Heartbeat Failure encountered, chip reset "
 523                             "required.\n");
 524
 525                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 526                 }
 527         }
 528
 529         if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 530                 ql_log(ql_log_info, vha, 0x506a,
 531                     "IDC Device-State changed = 0x%x.\n", mb[4]);
 532                 if (ha->flags.nic_core_reset_owner)
 533                         return;
 534                 qla83xx_schedule_work(vha, MBA_IDC_AEN);
 535         }
 536 }
 537
 538 int
 539 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 540 {
 541         struct qla_hw_data *ha = vha->hw;
 542         scsi_qla_host_t *vp;
 543         uint32_t vp_did;
 544         unsigned long flags;
 545         int ret = 0;
 546
 547         if (!ha->num_vhosts)
 548                 return ret;
 549
 550         spin_lock_irqsave(&ha->vport_slock, flags);
 551         list_for_each_entry(vp, &ha->vp_list, list) {
 552                 vp_did = vp->d_id.b24;
 553                 if (vp_did == rscn_entry) {
 554                         ret = 1;
 555                         break;
 556                 }
 557         }
 558         spin_unlock_irqrestore(&ha->vport_slock, flags);
 559
 560         return ret;
 561 }
 562
 563 /**
 564  * qla2x00_async_event() - Process aynchronous events.
 565  * @ha: SCSI driver HA context
 566  * @mb: Mailbox registers (0 - 3)
 567  */
 568 void
 569 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
 570 {
 571         uint16_t        handle_cnt;
 572         uint16_t        cnt, mbx;
 573         uint32_t        handles[5];
 574         struct qla_hw_data *ha = vha->hw;
 575         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 576         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
 577         struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 578         uint32_t        rscn_entry, host_pid, tmp_pid;
 579         unsigned long   flags;
 580         fc_port_t       *fcport = NULL;
 581
 582         /* Setup to process RIO completion. */
 583         handle_cnt = 0;
 584         if (IS_CNA_CAPABLE(ha))
 585                 goto skip_rio;
 586         switch (mb[0]) {
 587         case MBA_SCSI_COMPLETION:
 588                 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
 589                 handle_cnt = 1;
 590                 break;
 591         case MBA_CMPLT_1_16BIT:
 592                 handles[0] = mb[1];
 593                 handle_cnt = 1;
 594                 mb[0] = MBA_SCSI_COMPLETION;
 595                 break;
 596         case MBA_CMPLT_2_16BIT:
 597                 handles[0] = mb[1];
 598                 handles[1] = mb[2];
 599                 handle_cnt = 2;
 600                 mb[0] = MBA_SCSI_COMPLETION;
 601                 break;
 602         case MBA_CMPLT_3_16BIT:
 603                 handles[0] = mb[1];
 604                 handles[1] = mb[2];
 605                 handles[2] = mb[3];
 606                 handle_cnt = 3;
 607                 mb[0] = MBA_SCSI_COMPLETION;
 608                 break;
 609         case MBA_CMPLT_4_16BIT:
 610                 handles[0] = mb[1];
 611                 handles[1] = mb[2];
 612                 handles[2] = mb[3];
 613                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 614                 handle_cnt = 4;
 615                 mb[0] = MBA_SCSI_COMPLETION;
 616                 break;
 617         case MBA_CMPLT_5_16BIT:
 618                 handles[0] = mb[1];
 619                 handles[1] = mb[2];
 620                 handles[2] = mb[3];
 621                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 622                 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
 623                 handle_cnt = 5;
 624                 mb[0] = MBA_SCSI_COMPLETION;
 625                 break;
 626         case MBA_CMPLT_2_32BIT:
 627                 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
 628                 handles[1] = le32_to_cpu(
 629                     ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
 630                     RD_MAILBOX_REG(ha, reg, 6));
 631                 handle_cnt = 2;
 632                 mb[0] = MBA_SCSI_COMPLETION;
 633                 break;
 634         default:
 635                 break;
 636         }
 637 skip_rio:
 638         switch (mb[0]) {
 639         case MBA_SCSI_COMPLETION:       /* Fast Post */
 640                 if (!vha->flags.online)
 641                         break;
 642
 643                 for (cnt = 0; cnt < handle_cnt; cnt++)
 644                         qla2x00_process_completed_request(vha, rsp->req,
 645                                 handles[cnt]);
 646                 break;
 647
 648         case MBA_RESET:                 /* Reset */
 649                 ql_dbg(ql_dbg_async, vha, 0x5002,
 650                     "Asynchronous RESET.\n");
 651
 652                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 653                 break;
 654
 655         case MBA_SYSTEM_ERR:            /* System Error */
 656                 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ?
 657                         RD_REG_WORD(&reg24->mailbox7) : 0;
 658                 ql_log(ql_log_warn, vha, 0x5003,
 659                     "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
 660                     "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
 661
 662                 ha->isp_ops->fw_dump(vha, 1);
 663
 664                 if (IS_FWI2_CAPABLE(ha)) {
 665                         if (mb[1] == 0 && mb[2] == 0) {
 666                                 ql_log(ql_log_fatal, vha, 0x5004,
 667                                     "Unrecoverable Hardware Error: adapter "
 668                                     "marked OFFLINE!\n");
 669                                 vha->flags.online = 0;
 670                                 vha->device_flags |= DFLG_DEV_FAILED;
 671                         } else {
 672                                 /* Check to see if MPI timeout occurred */
 673                                 if ((mbx & MBX_3) && (ha->port_no == 0))
 674                                         set_bit(MPI_RESET_NEEDED,
 675                                             &vha->dpc_flags);
 676
 677                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 678                         }
 679                 } else if (mb[1] == 0) {
 680                         ql_log(ql_log_fatal, vha, 0x5005,
 681                             "Unrecoverable Hardware Error: adapter marked "
 682                             "OFFLINE!\n");
 683                         vha->flags.online = 0;
 684                         vha->device_flags |= DFLG_DEV_FAILED;
 685                 } else
 686                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 687                 break;
 688
 689         case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
 690                 ql_log(ql_log_warn, vha, 0x5006,
 691                     "ISP Request Transfer Error (%x).\n",  mb[1]);
 692
 693                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 694                 break;
 695
 696         case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
 697                 ql_log(ql_log_warn, vha, 0x5007,
 698                     "ISP Response Transfer Error.\n");
 699
 700                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 701                 break;
 702
 703         case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
 704                 ql_dbg(ql_dbg_async, vha, 0x5008,
 705                     "Asynchronous WAKEUP_THRES.\n");
 706
 707                 break;
 708         case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
 709                 ql_dbg(ql_dbg_async, vha, 0x5009,
 710                     "LIP occurred (%x).\n", mb[1]);
 711
 712                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 713                         atomic_set(&vha->loop_state, LOOP_DOWN);
 714                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 715                         qla2x00_mark_all_devices_lost(vha, 1);
 716                 }
 717
 718                 if (vha->vp_idx) {
 719                         atomic_set(&vha->vp_state, VP_FAILED);
 720                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 721                 }
 722
 723                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 724                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 725
 726                 vha->flags.management_server_logged_in = 0;
 727                 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
 728                 break;
 729
 730         case MBA_LOOP_UP:               /* Loop Up Event */
 731                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
 732                         ha->link_data_rate = PORT_SPEED_1GB;
 733                 else
 734                         ha->link_data_rate = mb[1];
 735
 736                 ql_log(ql_log_info, vha, 0x500a,
 737                     "LOOP UP detected (%s Gbps).\n",
 738                     qla2x00_get_link_speed_str(ha, ha->link_data_rate));
 739
 740                 vha->flags.management_server_logged_in = 0;
 741                 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
 742                 break;
 743
 744         case MBA_LOOP_DOWN:             /* Loop Down Event */
 745                 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
 746                         ? RD_REG_WORD(&reg24->mailbox4) : 0;
 747                 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(&reg82->mailbox_out[4])
 748                         : mbx;
 749                 ql_log(ql_log_info, vha, 0x500b,
 750                     "LOOP DOWN detected (%x %x %x %x).\n",
 751                     mb[1], mb[2], mb[3], mbx);
 752
 753                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 754                         atomic_set(&vha->loop_state, LOOP_DOWN);
 755                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 756                         /*
 757                          * In case of loop down, restore WWPN from
 758                          * NVRAM in case of FA-WWPN capable ISP
 759                          */
 760                         if (ha->flags.fawwpn_enabled) {
 761                                 void *wwpn = ha->init_cb->port_name;
 762
 763                                 memcpy(vha->port_name, wwpn, WWN_SIZE);
 764                         }
 765
 766                         vha->device_flags |= DFLG_NO_CABLE;
 767                         qla2x00_mark_all_devices_lost(vha, 1);
 768                 }
 769
 770                 if (vha->vp_idx) {
 771                         atomic_set(&vha->vp_state, VP_FAILED);
 772                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 773                 }
 774
 775                 vha->flags.management_server_logged_in = 0;
 776                 ha->link_data_rate = PORT_SPEED_UNKNOWN;
 777                 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
 778                 break;
 779
 780         case MBA_LIP_RESET:             /* LIP reset occurred */
 781                 ql_dbg(ql_dbg_async, vha, 0x500c,
 782                     "LIP reset occurred (%x).\n", mb[1]);
 783
 784                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 785                         atomic_set(&vha->loop_state, LOOP_DOWN);
 786                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 787                         qla2x00_mark_all_devices_lost(vha, 1);
 788                 }
 789
 790                 if (vha->vp_idx) {
 791                         atomic_set(&vha->vp_state, VP_FAILED);
 792                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 793                 }
 794
 795                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 796
 797                 ha->operating_mode = LOOP;
 798                 vha->flags.management_server_logged_in = 0;
 799                 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
 800                 break;
 801
 802         /* case MBA_DCBX_COMPLETE: */
 803         case MBA_POINT_TO_POINT:        /* Point-to-Point */
 804                 if (IS_QLA2100(ha))
 805                         break;
 806
 807                 if (IS_CNA_CAPABLE(ha)) {
 808                         ql_dbg(ql_dbg_async, vha, 0x500d,
 809                             "DCBX Completed -- %04x %04x %04x.\n",
 810                             mb[1], mb[2], mb[3]);
 811                         if (ha->notify_dcbx_comp && !vha->vp_idx)
 812                                 complete(&ha->dcbx_comp);
 813
 814                 } else
 815                         ql_dbg(ql_dbg_async, vha, 0x500e,
 816                             "Asynchronous P2P MODE received.\n");
 817
 818                 /*
 819                  * Until there's a transition from loop down to loop up, treat
 820                  * this as loop down only.
 821                  */
 822                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 823                         atomic_set(&vha->loop_state, LOOP_DOWN);
 824                         if (!atomic_read(&vha->loop_down_timer))
 825                                 atomic_set(&vha->loop_down_timer,
 826                                     LOOP_DOWN_TIME);
 827                         qla2x00_mark_all_devices_lost(vha, 1);
 828                 }
 829
 830                 if (vha->vp_idx) {
 831                         atomic_set(&vha->vp_state, VP_FAILED);
 832                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 833                 }
 834
 835                 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
 836                         set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 837
 838                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 839                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 840
 841                 ha->flags.gpsc_supported = 1;
 842                 vha->flags.management_server_logged_in = 0;
 843                 break;
 844
 845         case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
 846                 if (IS_QLA2100(ha))
 847                         break;
 848
 849                 ql_dbg(ql_dbg_async, vha, 0x500f,
 850                     "Configuration change detected: value=%x.\n", mb[1]);
 851
 852                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 853                         atomic_set(&vha->loop_state, LOOP_DOWN);
 854                         if (!atomic_read(&vha->loop_down_timer))
 855                                 atomic_set(&vha->loop_down_timer,
 856                                     LOOP_DOWN_TIME);
 857                         qla2x00_mark_all_devices_lost(vha, 1);
 858                 }
 859
 860                 if (vha->vp_idx) {
 861                         atomic_set(&vha->vp_state, VP_FAILED);
 862                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 863                 }
 864
 865                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 866                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 867                 break;
 868
 869         case MBA_PORT_UPDATE:           /* Port database update */
 870                 /*
 871                  * Handle only global and vn-port update events
 872                  *
 873                  * Relevant inputs:
 874                  * mb[1] = N_Port handle of changed port
 875                  * OR 0xffff for global event
 876                  * mb[2] = New login state
 877                  * 7 = Port logged out
 878                  * mb[3] = LSB is vp_idx, 0xff = all vps
 879                  *
 880                  * Skip processing if:
 881                  *       Event is global, vp_idx is NOT all vps,
 882                  *           vp_idx does not match
 883                  *       Event is not global, vp_idx does not match
 884                  */
 885                 if (IS_QLA2XXX_MIDTYPE(ha) &&
 886                     ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
 887                         (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
 888                         break;
 889
 890                 /* Global event -- port logout or port unavailable. */
 891                 if (mb[1] == 0xffff && mb[2] == 0x7) {
 892                         ql_dbg(ql_dbg_async, vha, 0x5010,
 893                             "Port unavailable %04x %04x %04x.\n",
 894                             mb[1], mb[2], mb[3]);
 895                         ql_log(ql_log_warn, vha, 0x505e,
 896                             "Link is offline.\n");
 897
 898                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 899                                 atomic_set(&vha->loop_state, LOOP_DOWN);
 900                                 atomic_set(&vha->loop_down_timer,
 901                                     LOOP_DOWN_TIME);
 902                                 vha->device_flags |= DFLG_NO_CABLE;
 903                                 qla2x00_mark_all_devices_lost(vha, 1);
 904                         }
 905
 906                         if (vha->vp_idx) {
 907                                 atomic_set(&vha->vp_state, VP_FAILED);
 908                                 fc_vport_set_state(vha->fc_vport,
 909                                     FC_VPORT_FAILED);
 910                                 qla2x00_mark_all_devices_lost(vha, 1);
 911                         }
 912
 913                         vha->flags.management_server_logged_in = 0;
 914                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
 915                         break;
 916                 }
 917
 918                 /*
 919                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
 920                  * event etc. earlier indicating loop is down) then process
 921                  * it.  Otherwise ignore it and Wait for RSCN to come in.
 922                  */
 923                 atomic_set(&vha->loop_down_timer, 0);
 924                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
 925                     atomic_read(&vha->loop_state) != LOOP_DEAD) {
 926                         ql_dbg(ql_dbg_async, vha, 0x5011,
 927                             "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
 928                             mb[1], mb[2], mb[3]);
 929
 930                         qlt_async_event(mb[0], vha, mb);
 931                         break;
 932                 }
 933
 934                 ql_dbg(ql_dbg_async, vha, 0x5012,
 935                     "Port database changed %04x %04x %04x.\n",
 936                     mb[1], mb[2], mb[3]);
 937
 938                 /*
 939                  * Mark all devices as missing so we will login again.
 940                  */
 941                 atomic_set(&vha->loop_state, LOOP_UP);
 942
 943                 qla2x00_mark_all_devices_lost(vha, 1);
 944
 945                 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha))
 946                         set_bit(SCR_PENDING, &vha->dpc_flags);
 947
 948                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 949                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 950
 951                 qlt_async_event(mb[0], vha, mb);
 952                 break;
 953
 954         case MBA_RSCN_UPDATE:           /* State Change Registration */
 955                 /* Check if the Vport has issued a SCR */
 956                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
 957                         break;
 958                 /* Only handle SCNs for our Vport index. */
 959                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
 960                         break;
 961
 962                 ql_dbg(ql_dbg_async, vha, 0x5013,
 963                     "RSCN database changed -- %04x %04x %04x.\n",
 964                     mb[1], mb[2], mb[3]);
 965
 966                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
 967                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
 968                                 | vha->d_id.b.al_pa;
 969                 if (rscn_entry == host_pid) {
 970                         ql_dbg(ql_dbg_async, vha, 0x5014,
 971                             "Ignoring RSCN update to local host "
 972                             "port ID (%06x).\n", host_pid);
 973                         break;
 974                 }
 975
 976                 /* Ignore reserved bits from RSCN-payload. */
 977                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
 978
 979                 /* Skip RSCNs for virtual ports on the same physical port */
 980                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
 981                         break;
 982
 983                 /*
 984                  * Search for the rport related to this RSCN entry and mark it
 985                  * as lost.
 986                  */
 987                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
 988                         if (atomic_read(&fcport->state) != FCS_ONLINE)
 989                                 continue;
 990                         tmp_pid = fcport->d_id.b24;
 991                         if (fcport->d_id.b24 == rscn_entry) {
 992                                 qla2x00_mark_device_lost(vha, fcport, 0, 0);
 993                                 break;
 994                         }
 995                 }
 996
 997                 atomic_set(&vha->loop_down_timer, 0);
 998                 vha->flags.management_server_logged_in = 0;
 999
1000                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1001                 set_bit(RSCN_UPDATE, &vha->dpc_flags);
1002                 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1003                 break;
1004
1005         /* case MBA_RIO_RESPONSE: */
1006         case MBA_ZIO_RESPONSE:
1007                 ql_dbg(ql_dbg_async, vha, 0x5015,
1008                     "[R|Z]IO update completion.\n");
1009
1010                 if (IS_FWI2_CAPABLE(ha))
1011                         qla24xx_process_response_queue(vha, rsp);
1012                 else
1013                         qla2x00_process_response_queue(rsp);
1014                 break;
1015
1016         case MBA_DISCARD_RND_FRAME:
1017                 ql_dbg(ql_dbg_async, vha, 0x5016,
1018                     "Discard RND Frame -- %04x %04x %04x.\n",
1019                     mb[1], mb[2], mb[3]);
1020                 break;
1021
1022         case MBA_TRACE_NOTIFICATION:
1023                 ql_dbg(ql_dbg_async, vha, 0x5017,
1024                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1025                 break;
1026
1027         case MBA_ISP84XX_ALERT:
1028                 ql_dbg(ql_dbg_async, vha, 0x5018,
1029                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1030                     mb[1], mb[2], mb[3]);
1031
1032                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1033                 switch (mb[1]) {
1034                 case A84_PANIC_RECOVERY:
1035                         ql_log(ql_log_info, vha, 0x5019,
1036                             "Alert 84XX: panic recovery %04x %04x.\n",
1037                             mb[2], mb[3]);
1038                         break;
1039                 case A84_OP_LOGIN_COMPLETE:
1040                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1041                         ql_log(ql_log_info, vha, 0x501a,
1042                             "Alert 84XX: firmware version %x.\n",
1043                             ha->cs84xx->op_fw_version);
1044                         break;
1045                 case A84_DIAG_LOGIN_COMPLETE:
1046                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1047                         ql_log(ql_log_info, vha, 0x501b,
1048                             "Alert 84XX: diagnostic firmware version %x.\n",
1049                             ha->cs84xx->diag_fw_version);
1050                         break;
1051                 case A84_GOLD_LOGIN_COMPLETE:
1052                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1053                         ha->cs84xx->fw_update = 1;
1054                         ql_log(ql_log_info, vha, 0x501c,
1055                             "Alert 84XX: gold firmware version %x.\n",
1056                             ha->cs84xx->gold_fw_version);
1057                         break;
1058                 default:
1059                         ql_log(ql_log_warn, vha, 0x501d,
1060                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1061                             mb[1], mb[2], mb[3]);
1062                 }
1063                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1064                 break;
1065         case MBA_DCBX_START:
1066                 ql_dbg(ql_dbg_async, vha, 0x501e,
1067                     "DCBX Started -- %04x %04x %04x.\n",
1068                     mb[1], mb[2], mb[3]);
1069                 break;
1070         case MBA_DCBX_PARAM_UPDATE:
1071                 ql_dbg(ql_dbg_async, vha, 0x501f,
1072                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1073                     mb[1], mb[2], mb[3]);
1074                 break;
1075         case MBA_FCF_CONF_ERR:
1076                 ql_dbg(ql_dbg_async, vha, 0x5020,
1077                     "FCF Configuration Error -- %04x %04x %04x.\n",
1078                     mb[1], mb[2], mb[3]);
1079                 break;
1080         case MBA_IDC_NOTIFY:
1081                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1082                         mb[4] = RD_REG_WORD(&reg24->mailbox4);
1083                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1084                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1085                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1086                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1087                                 /*
1088                                  * Extend loop down timer since port is active.
1089                                  */
1090                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1091                                         atomic_set(&vha->loop_down_timer,
1092                                             LOOP_DOWN_TIME);
1093                                 qla2xxx_wake_dpc(vha);
1094                         }
1095                 }
1096         case MBA_IDC_COMPLETE:
1097                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1098                         complete(&ha->lb_portup_comp);
1099                 /* Fallthru */
1100         case MBA_IDC_TIME_EXT:
1101                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1102                     IS_QLA8044(ha))
1103                         qla81xx_idc_event(vha, mb[0], mb[1]);
1104                 break;
1105
1106         case MBA_IDC_AEN:
1107                 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1108                 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1109                 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1110                 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1111                 qla83xx_handle_8200_aen(vha, mb);
1112                 break;
1113
1114         case MBA_DPORT_DIAGNOSTICS:
1115                 ql_dbg(ql_dbg_async, vha, 0x5052,
1116                     "D-Port Diagnostics: %04x %04x=%s\n", mb[0], mb[1],
1117                     mb[1] == 0 ? "start" :
1118                     mb[1] == 1 ? "done (ok)" :
1119                     mb[1] == 2 ? "done (error)" : "other");
1120                 break;
1121
1122         default:
1123                 ql_dbg(ql_dbg_async, vha, 0x5057,
1124                     "Unknown AEN:%04x %04x %04x %04x\n",
1125                     mb[0], mb[1], mb[2], mb[3]);
1126         }
1127
1128         qlt_async_event(mb[0], vha, mb);
1129
1130         if (!vha->vp_idx && ha->num_vhosts)
1131                 qla2x00_alert_all_vps(rsp, mb);
1132 }
1133
1134 /**
1135  * qla2x00_process_completed_request() - Process a Fast Post response.
1136  * @ha: SCSI driver HA context
1137  * @index: SRB index
1138  */
1139 void
1140 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1141                                   struct req_que *req, uint32_t index)
1142 {
1143         srb_t *sp;
1144         struct qla_hw_data *ha = vha->hw;
1145
1146         /* Validate handle. */
1147         if (index >= req->num_outstanding_cmds) {
1148                 ql_log(ql_log_warn, vha, 0x3014,
1149                     "Invalid SCSI command index (%x).\n", index);
1150
1151                 if (IS_P3P_TYPE(ha))
1152                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1153                 else
1154                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1155                 return;
1156         }
1157
1158         sp = req->outstanding_cmds[index];
1159         if (sp) {
1160                 /* Free outstanding command slot. */
1161                 req->outstanding_cmds[index] = NULL;
1162
1163                 /* Save ISP completion status */
1164                 sp->done(ha, sp, DID_OK << 16);
1165         } else {
1166                 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1167
1168                 if (IS_P3P_TYPE(ha))
1169                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1170                 else
1171                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1172         }
1173 }
1174
1175 srb_t *
1176 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1177     struct req_que *req, void *iocb)
1178 {
1179         struct qla_hw_data *ha = vha->hw;
1180         sts_entry_t *pkt = iocb;
1181         srb_t *sp = NULL;
1182         uint16_t index;
1183
1184         index = LSW(pkt->handle);
1185         if (index >= req->num_outstanding_cmds) {
1186                 ql_log(ql_log_warn, vha, 0x5031,
1187                     "Invalid command index (%x).\n", index);
1188                 if (IS_P3P_TYPE(ha))
1189                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1190                 else
1191                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1192                 goto done;
1193         }
1194         sp = req->outstanding_cmds[index];
1195         if (!sp) {
1196                 ql_log(ql_log_warn, vha, 0x5032,
1197                     "Invalid completion handle (%x) -- timed-out.\n", index);
1198                 return sp;
1199         }
1200         if (sp->handle != index) {
1201                 ql_log(ql_log_warn, vha, 0x5033,
1202                     "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1203                 return NULL;
1204         }
1205
1206         req->outstanding_cmds[index] = NULL;
1207
1208 done:
1209         return sp;
1210 }
1211
1212 static void
1213 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1214     struct mbx_entry *mbx)
1215 {
1216         const char func[] = "MBX-IOCB";
1217         const char *type;
1218         fc_port_t *fcport;
1219         srb_t *sp;
1220         struct srb_iocb *lio;
1221         uint16_t *data;
1222         uint16_t status;
1223
1224         sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1225         if (!sp)
1226                 return;
1227
1228         lio = &sp->u.iocb_cmd;
1229         type = sp->name;
1230         fcport = sp->fcport;
1231         data = lio->u.logio.data;
1232
1233         data[0] = MBS_COMMAND_ERROR;
1234         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1235             QLA_LOGIO_LOGIN_RETRIED : 0;
1236         if (mbx->entry_status) {
1237                 ql_dbg(ql_dbg_async, vha, 0x5043,
1238                     "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1239                     "entry-status=%x status=%x state-flag=%x "
1240                     "status-flags=%x.\n", type, sp->handle,
1241                     fcport->d_id.b.domain, fcport->d_id.b.area,
1242                     fcport->d_id.b.al_pa, mbx->entry_status,
1243                     le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1244                     le16_to_cpu(mbx->status_flags));
1245
1246                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1247                     (uint8_t *)mbx, sizeof(*mbx));
1248
1249                 goto logio_done;
1250         }
1251
1252         status = le16_to_cpu(mbx->status);
1253         if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1254             le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1255                 status = 0;
1256         if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1257                 ql_dbg(ql_dbg_async, vha, 0x5045,
1258                     "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1259                     type, sp->handle, fcport->d_id.b.domain,
1260                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1261                     le16_to_cpu(mbx->mb1));
1262
1263                 data[0] = MBS_COMMAND_COMPLETE;
1264                 if (sp->type == SRB_LOGIN_CMD) {
1265                         fcport->port_type = FCT_TARGET;
1266                         if (le16_to_cpu(mbx->mb1) & BIT_0)
1267                                 fcport->port_type = FCT_INITIATOR;
1268                         else if (le16_to_cpu(mbx->mb1) & BIT_1)
1269                                 fcport->flags |= FCF_FCP2_DEVICE;
1270                 }
1271                 goto logio_done;
1272         }
1273
1274         data[0] = le16_to_cpu(mbx->mb0);
1275         switch (data[0]) {
1276         case MBS_PORT_ID_USED:
1277                 data[1] = le16_to_cpu(mbx->mb1);
1278                 break;
1279         case MBS_LOOP_ID_USED:
1280                 break;
1281         default:
1282                 data[0] = MBS_COMMAND_ERROR;
1283                 break;
1284         }
1285
1286         ql_log(ql_log_warn, vha, 0x5046,
1287             "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1288             "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1289             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1290             status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1291             le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1292             le16_to_cpu(mbx->mb7));
1293
1294 logio_done:
1295         sp->done(vha, sp, 0);
1296 }
1297
1298 static void
1299 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1300     sts_entry_t *pkt, int iocb_type)
1301 {
1302         const char func[] = "CT_IOCB";
1303         const char *type;
1304         srb_t *sp;
1305         struct fc_bsg_job *bsg_job;
1306         uint16_t comp_status;
1307         int res;
1308
1309         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1310         if (!sp)
1311                 return;
1312
1313         bsg_job = sp->u.bsg_job;
1314
1315         type = "ct pass-through";
1316
1317         comp_status = le16_to_cpu(pkt->comp_status);
1318
1319         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1320          * fc payload  to the caller
1321          */
1322         bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1323         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1324
1325         if (comp_status != CS_COMPLETE) {
1326                 if (comp_status == CS_DATA_UNDERRUN) {
1327                         res = DID_OK << 16;
1328                         bsg_job->reply->reply_payload_rcv_len =
1329                             le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1330
1331                         ql_log(ql_log_warn, vha, 0x5048,
1332                             "CT pass-through-%s error "
1333                             "comp_status-status=0x%x total_byte = 0x%x.\n",
1334                             type, comp_status,
1335                             bsg_job->reply->reply_payload_rcv_len);
1336                 } else {
1337                         ql_log(ql_log_warn, vha, 0x5049,
1338                             "CT pass-through-%s error "
1339                             "comp_status-status=0x%x.\n", type, comp_status);
1340                         res = DID_ERROR << 16;
1341                         bsg_job->reply->reply_payload_rcv_len = 0;
1342                 }
1343                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1344                     (uint8_t *)pkt, sizeof(*pkt));
1345         } else {
1346                 res = DID_OK << 16;
1347                 bsg_job->reply->reply_payload_rcv_len =
1348                     bsg_job->reply_payload.payload_len;
1349                 bsg_job->reply_len = 0;
1350         }
1351
1352         sp->done(vha, sp, res);
1353 }
1354
1355 static void
1356 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1357     struct sts_entry_24xx *pkt, int iocb_type)
1358 {
1359         const char func[] = "ELS_CT_IOCB";
1360         const char *type;
1361         srb_t *sp;
1362         struct fc_bsg_job *bsg_job;
1363         uint16_t comp_status;
1364         uint32_t fw_status[3];
1365         uint8_t* fw_sts_ptr;
1366         int res;
1367
1368         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1369         if (!sp)
1370                 return;
1371         bsg_job = sp->u.bsg_job;
1372
1373         type = NULL;
1374         switch (sp->type) {
1375         case SRB_ELS_CMD_RPT:
1376         case SRB_ELS_CMD_HST:
1377                 type = "els";
1378                 break;
1379         case SRB_CT_CMD:
1380                 type = "ct pass-through";
1381                 break;
1382         default:
1383                 ql_dbg(ql_dbg_user, vha, 0x503e,
1384                     "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1385                 return;
1386         }
1387
1388         comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1389         fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1390         fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1391
1392         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1393          * fc payload  to the caller
1394          */
1395         bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1396         bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1397
1398         if (comp_status != CS_COMPLETE) {
1399                 if (comp_status == CS_DATA_UNDERRUN) {
1400                         res = DID_OK << 16;
1401                         bsg_job->reply->reply_payload_rcv_len =
1402                             le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1403
1404                         ql_dbg(ql_dbg_user, vha, 0x503f,
1405                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1406                             "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1407                             type, sp->handle, comp_status, fw_status[1], fw_status[2],
1408                             le16_to_cpu(((struct els_sts_entry_24xx *)
1409                                 pkt)->total_byte_count));
1410                         fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1411                         memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1412                 }
1413                 else {
1414                         ql_dbg(ql_dbg_user, vha, 0x5040,
1415                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1416                             "error subcode 1=0x%x error subcode 2=0x%x.\n",
1417                             type, sp->handle, comp_status,
1418                             le16_to_cpu(((struct els_sts_entry_24xx *)
1419                                 pkt)->error_subcode_1),
1420                             le16_to_cpu(((struct els_sts_entry_24xx *)
1421                                     pkt)->error_subcode_2));
1422                         res = DID_ERROR << 16;
1423                         bsg_job->reply->reply_payload_rcv_len = 0;
1424                         fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1425                         memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1426                 }
1427                 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1428                                 (uint8_t *)pkt, sizeof(*pkt));
1429         }
1430         else {
1431                 res =  DID_OK << 16;
1432                 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1433                 bsg_job->reply_len = 0;
1434         }
1435
1436         sp->done(vha, sp, res);
1437 }
1438
1439 static void
1440 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1441     struct logio_entry_24xx *logio)
1442 {
1443         const char func[] = "LOGIO-IOCB";
1444         const char *type;
1445         fc_port_t *fcport;
1446         srb_t *sp;
1447         struct srb_iocb *lio;
1448         uint16_t *data;
1449         uint32_t iop[2];
1450
1451         sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1452         if (!sp)
1453                 return;
1454
1455         lio = &sp->u.iocb_cmd;
1456         type = sp->name;
1457         fcport = sp->fcport;
1458         data = lio->u.logio.data;
1459
1460         data[0] = MBS_COMMAND_ERROR;
1461         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1462                 QLA_LOGIO_LOGIN_RETRIED : 0;
1463         if (logio->entry_status) {
1464                 ql_log(ql_log_warn, fcport->vha, 0x5034,
1465                     "Async-%s error entry - hdl=%x"
1466                     "portid=%02x%02x%02x entry-status=%x.\n",
1467                     type, sp->handle, fcport->d_id.b.domain,
1468                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1469                     logio->entry_status);
1470                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1471                     (uint8_t *)logio, sizeof(*logio));
1472
1473                 goto logio_done;
1474         }
1475
1476         if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1477                 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1478                     "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1479                     "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1480                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1481                     le32_to_cpu(logio->io_parameter[0]));
1482
1483                 data[0] = MBS_COMMAND_COMPLETE;
1484                 if (sp->type != SRB_LOGIN_CMD)
1485                         goto logio_done;
1486
1487                 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1488                 if (iop[0] & BIT_4) {
1489                         fcport->port_type = FCT_TARGET;
1490                         if (iop[0] & BIT_8)
1491                                 fcport->flags |= FCF_FCP2_DEVICE;
1492                 } else if (iop[0] & BIT_5)
1493                         fcport->port_type = FCT_INITIATOR;
1494
1495                 if (iop[0] & BIT_7)
1496                         fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1497
1498                 if (logio->io_parameter[7] || logio->io_parameter[8])
1499                         fcport->supported_classes |= FC_COS_CLASS2;
1500                 if (logio->io_parameter[9] || logio->io_parameter[10])
1501                         fcport->supported_classes |= FC_COS_CLASS3;
1502
1503                 goto logio_done;
1504         }
1505
1506         iop[0] = le32_to_cpu(logio->io_parameter[0]);
1507         iop[1] = le32_to_cpu(logio->io_parameter[1]);
1508         switch (iop[0]) {
1509         case LSC_SCODE_PORTID_USED:
1510                 data[0] = MBS_PORT_ID_USED;
1511                 data[1] = LSW(iop[1]);
1512                 break;
1513         case LSC_SCODE_NPORT_USED:
1514                 data[0] = MBS_LOOP_ID_USED;
1515                 break;
1516         default:
1517                 data[0] = MBS_COMMAND_ERROR;
1518                 break;
1519         }
1520
1521         ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1522             "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1523             "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1524             fcport->d_id.b.area, fcport->d_id.b.al_pa,
1525             le16_to_cpu(logio->comp_status),
1526             le32_to_cpu(logio->io_parameter[0]),
1527             le32_to_cpu(logio->io_parameter[1]));
1528
1529 logio_done:
1530         sp->done(vha, sp, 0);
1531 }
1532
1533 static void
1534 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
1535 {
1536         const char func[] = "TMF-IOCB";
1537         const char *type;
1538         fc_port_t *fcport;
1539         srb_t *sp;
1540         struct srb_iocb *iocb;
1541         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1542
1543         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1544         if (!sp)
1545                 return;
1546
1547         iocb = &sp->u.iocb_cmd;
1548         type = sp->name;
1549         fcport = sp->fcport;
1550         iocb->u.tmf.data = QLA_SUCCESS;
1551
1552         if (sts->entry_status) {
1553                 ql_log(ql_log_warn, fcport->vha, 0x5038,
1554                     "Async-%s error - hdl=%x entry-status(%x).\n",
1555                     type, sp->handle, sts->entry_status);
1556                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1557         } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
1558                 ql_log(ql_log_warn, fcport->vha, 0x5039,
1559                     "Async-%s error - hdl=%x completion status(%x).\n",
1560                     type, sp->handle, sts->comp_status);
1561                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1562         } else if ((le16_to_cpu(sts->scsi_status) &
1563             SS_RESPONSE_INFO_LEN_VALID)) {
1564                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1565                         ql_log(ql_log_warn, fcport->vha, 0x503b,
1566                             "Async-%s error - hdl=%x not enough response(%d).\n",
1567                             type, sp->handle, sts->rsp_data_len);
1568                 } else if (sts->data[3]) {
1569                         ql_log(ql_log_warn, fcport->vha, 0x503c,
1570                             "Async-%s error - hdl=%x response(%x).\n",
1571                             type, sp->handle, sts->data[3]);
1572                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1573                 }
1574         }
1575
1576         if (iocb->u.tmf.data != QLA_SUCCESS)
1577                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1578                     (uint8_t *)sts, sizeof(*sts));
1579
1580         sp->done(vha, sp, 0);
1581 }
1582
1583 /**
1584  * qla2x00_process_response_queue() - Process response queue entries.
1585  * @ha: SCSI driver HA context
1586  */
1587 void
1588 qla2x00_process_response_queue(struct rsp_que *rsp)
1589 {
1590         struct scsi_qla_host *vha;
1591         struct qla_hw_data *ha = rsp->hw;
1592         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1593         sts_entry_t     *pkt;
1594         uint16_t        handle_cnt;
1595         uint16_t        cnt;
1596
1597         vha = pci_get_drvdata(ha->pdev);
1598
1599         if (!vha->flags.online)
1600                 return;
1601
1602         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1603                 pkt = (sts_entry_t *)rsp->ring_ptr;
1604
1605                 rsp->ring_index++;
1606                 if (rsp->ring_index == rsp->length) {
1607                         rsp->ring_index = 0;
1608                         rsp->ring_ptr = rsp->ring;
1609                 } else {
1610                         rsp->ring_ptr++;
1611                 }
1612
1613                 if (pkt->entry_status != 0) {
1614                         qla2x00_error_entry(vha, rsp, pkt);
1615                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1616                         wmb();
1617                         continue;
1618                 }
1619
1620                 switch (pkt->entry_type) {
1621                 case STATUS_TYPE:
1622                         qla2x00_status_entry(vha, rsp, pkt);
1623                         break;
1624                 case STATUS_TYPE_21:
1625                         handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1626                         for (cnt = 0; cnt < handle_cnt; cnt++) {
1627                                 qla2x00_process_completed_request(vha, rsp->req,
1628                                     ((sts21_entry_t *)pkt)->handle[cnt]);
1629                         }
1630                         break;
1631                 case STATUS_TYPE_22:
1632                         handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1633                         for (cnt = 0; cnt < handle_cnt; cnt++) {
1634                                 qla2x00_process_completed_request(vha, rsp->req,
1635                                     ((sts22_entry_t *)pkt)->handle[cnt]);
1636                         }
1637                         break;
1638                 case STATUS_CONT_TYPE:
1639                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1640                         break;
1641                 case MBX_IOCB_TYPE:
1642                         qla2x00_mbx_iocb_entry(vha, rsp->req,
1643                             (struct mbx_entry *)pkt);
1644                         break;
1645                 case CT_IOCB_TYPE:
1646                         qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1647                         break;
1648                 default:
1649                         /* Type Not Supported. */
1650                         ql_log(ql_log_warn, vha, 0x504a,
1651                             "Received unknown response pkt type %x "
1652                             "entry status=%x.\n",
1653                             pkt->entry_type, pkt->entry_status);
1654                         break;
1655                 }
1656                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1657                 wmb();
1658         }
1659
1660         /* Adjust ring index */
1661         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1662 }
1663
1664 static inline void
1665 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1666                      uint32_t sense_len, struct rsp_que *rsp, int res)
1667 {
1668         struct scsi_qla_host *vha = sp->fcport->vha;
1669         struct scsi_cmnd *cp = GET_CMD_SP(sp);
1670         uint32_t track_sense_len;
1671
1672         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1673                 sense_len = SCSI_SENSE_BUFFERSIZE;
1674
1675         SET_CMD_SENSE_LEN(sp, sense_len);
1676         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1677         track_sense_len = sense_len;
1678
1679         if (sense_len > par_sense_len)
1680                 sense_len = par_sense_len;
1681
1682         memcpy(cp->sense_buffer, sense_data, sense_len);
1683
1684         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1685         track_sense_len -= sense_len;
1686         SET_CMD_SENSE_LEN(sp, track_sense_len);
1687
1688         if (track_sense_len != 0) {
1689                 rsp->status_srb = sp;
1690                 cp->result = res;
1691         }
1692
1693         if (sense_len) {
1694                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1695                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
1696                     sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1697                     cp);
1698                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1699                     cp->sense_buffer, sense_len);
1700         }
1701 }
1702
1703 struct scsi_dif_tuple {
1704         __be16 guard;       /* Checksum */
1705         __be16 app_tag;         /* APPL identifier */
1706         __be32 ref_tag;         /* Target LBA or indirect LBA */
1707 };
1708
1709 /*
1710  * Checks the guard or meta-data for the type of error
1711  * detected by the HBA. In case of errors, we set the
1712  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1713  * to indicate to the kernel that the HBA detected error.
1714  */
1715 static inline int
1716 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1717 {
1718         struct scsi_qla_host *vha = sp->fcport->vha;
1719         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1720         uint8_t         *ap = &sts24->data[12];
1721         uint8_t         *ep = &sts24->data[20];
1722         uint32_t        e_ref_tag, a_ref_tag;
1723         uint16_t        e_app_tag, a_app_tag;
1724         uint16_t        e_guard, a_guard;
1725
1726         /*
1727          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1728          * would make guard field appear at offset 2
1729          */
1730         a_guard   = le16_to_cpu(*(uint16_t *)(ap + 2));
1731         a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1732         a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1733         e_guard   = le16_to_cpu(*(uint16_t *)(ep + 2));
1734         e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1735         e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1736
1737         ql_dbg(ql_dbg_io, vha, 0x3023,
1738             "iocb(s) %p Returned STATUS.\n", sts24);
1739
1740         ql_dbg(ql_dbg_io, vha, 0x3024,
1741             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1742             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1743             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1744             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1745             a_app_tag, e_app_tag, a_guard, e_guard);
1746
1747         /*
1748          * Ignore sector if:
1749          * For type     3: ref & app tag is all 'f's
1750          * For type 0,1,2: app tag is all 'f's
1751          */
1752         if ((a_app_tag == 0xffff) &&
1753             ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1754              (a_ref_tag == 0xffffffff))) {
1755                 uint32_t blocks_done, resid;
1756                 sector_t lba_s = scsi_get_lba(cmd);
1757
1758                 /* 2TB boundary case covered automatically with this */
1759                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1760
1761                 resid = scsi_bufflen(cmd) - (blocks_done *
1762                     cmd->device->sector_size);
1763
1764                 scsi_set_resid(cmd, resid);
1765                 cmd->result = DID_OK << 16;
1766
1767                 /* Update protection tag */
1768                 if (scsi_prot_sg_count(cmd)) {
1769                         uint32_t i, j = 0, k = 0, num_ent;
1770                         struct scatterlist *sg;
1771                         struct sd_dif_tuple *spt;
1772
1773                         /* Patch the corresponding protection tags */
1774                         scsi_for_each_prot_sg(cmd, sg,
1775                             scsi_prot_sg_count(cmd), i) {
1776                                 num_ent = sg_dma_len(sg) / 8;
1777                                 if (k + num_ent < blocks_done) {
1778                                         k += num_ent;
1779                                         continue;
1780                                 }
1781                                 j = blocks_done - k - 1;
1782                                 k = blocks_done;
1783                                 break;
1784                         }
1785
1786                         if (k != blocks_done) {
1787                                 ql_log(ql_log_warn, vha, 0x302f,
1788                                     "unexpected tag values tag:lba=%x:%llx)\n",
1789                                     e_ref_tag, (unsigned long long)lba_s);
1790                                 return 1;
1791                         }
1792
1793                         spt = page_address(sg_page(sg)) + sg->offset;
1794                         spt += j;
1795
1796                         spt->app_tag = 0xffff;
1797                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1798                                 spt->ref_tag = 0xffffffff;
1799                 }
1800
1801                 return 0;
1802         }
1803
1804         /* check guard */
1805         if (e_guard != a_guard) {
1806                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1807                     0x10, 0x1);
1808                 set_driver_byte(cmd, DRIVER_SENSE);
1809                 set_host_byte(cmd, DID_ABORT);
1810                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1811                 return 1;
1812         }
1813
1814         /* check ref tag */
1815         if (e_ref_tag != a_ref_tag) {
1816                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1817                     0x10, 0x3);
1818                 set_driver_byte(cmd, DRIVER_SENSE);
1819                 set_host_byte(cmd, DID_ABORT);
1820                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1821                 return 1;
1822         }
1823
1824         /* check appl tag */
1825         if (e_app_tag != a_app_tag) {
1826                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1827                     0x10, 0x2);
1828                 set_driver_byte(cmd, DRIVER_SENSE);
1829                 set_host_byte(cmd, DID_ABORT);
1830                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1831                 return 1;
1832         }
1833
1834         return 1;
1835 }
1836
1837 static void
1838 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
1839                                   struct req_que *req, uint32_t index)
1840 {
1841         struct qla_hw_data *ha = vha->hw;
1842         srb_t *sp;
1843         uint16_t        comp_status;
1844         uint16_t        scsi_status;
1845         uint16_t thread_id;
1846         uint32_t rval = EXT_STATUS_OK;
1847         struct fc_bsg_job *bsg_job = NULL;
1848         sts_entry_t *sts;
1849         struct sts_entry_24xx *sts24;
1850         sts = (sts_entry_t *) pkt;
1851         sts24 = (struct sts_entry_24xx *) pkt;
1852
1853         /* Validate handle. */
1854         if (index >= req->num_outstanding_cmds) {
1855                 ql_log(ql_log_warn, vha, 0x70af,
1856                     "Invalid SCSI completion handle 0x%x.\n", index);
1857                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1858                 return;
1859         }
1860
1861         sp = req->outstanding_cmds[index];
1862         if (sp) {
1863                 /* Free outstanding command slot. */
1864                 req->outstanding_cmds[index] = NULL;
1865                 bsg_job = sp->u.bsg_job;
1866         } else {
1867                 ql_log(ql_log_warn, vha, 0x70b0,
1868                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
1869                     req->id, index);
1870
1871                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1872                 return;
1873         }
1874
1875         if (IS_FWI2_CAPABLE(ha)) {
1876                 comp_status = le16_to_cpu(sts24->comp_status);
1877                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1878         } else {
1879                 comp_status = le16_to_cpu(sts->comp_status);
1880                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1881         }
1882
1883         thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1884         switch (comp_status) {
1885         case CS_COMPLETE:
1886                 if (scsi_status == 0) {
1887                         bsg_job->reply->reply_payload_rcv_len =
1888                                         bsg_job->reply_payload.payload_len;
1889                         vha->qla_stats.input_bytes +=
1890                                 bsg_job->reply->reply_payload_rcv_len;
1891                         vha->qla_stats.input_requests++;
1892                         rval = EXT_STATUS_OK;
1893                 }
1894                 goto done;
1895
1896         case CS_DATA_OVERRUN:
1897                 ql_dbg(ql_dbg_user, vha, 0x70b1,
1898                     "Command completed with date overrun thread_id=%d\n",
1899                     thread_id);
1900                 rval = EXT_STATUS_DATA_OVERRUN;
1901                 break;
1902
1903         case CS_DATA_UNDERRUN:
1904                 ql_dbg(ql_dbg_user, vha, 0x70b2,
1905                     "Command completed with date underrun thread_id=%d\n",
1906                     thread_id);
1907                 rval = EXT_STATUS_DATA_UNDERRUN;
1908                 break;
1909         case CS_BIDIR_RD_OVERRUN:
1910                 ql_dbg(ql_dbg_user, vha, 0x70b3,
1911                     "Command completed with read data overrun thread_id=%d\n",
1912                     thread_id);
1913                 rval = EXT_STATUS_DATA_OVERRUN;
1914                 break;
1915
1916         case CS_BIDIR_RD_WR_OVERRUN:
1917                 ql_dbg(ql_dbg_user, vha, 0x70b4,
1918                     "Command completed with read and write data overrun "
1919                     "thread_id=%d\n", thread_id);
1920                 rval = EXT_STATUS_DATA_OVERRUN;
1921                 break;
1922
1923         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
1924                 ql_dbg(ql_dbg_user, vha, 0x70b5,
1925                     "Command completed with read data over and write data "
1926                     "underrun thread_id=%d\n", thread_id);
1927                 rval = EXT_STATUS_DATA_OVERRUN;
1928                 break;
1929
1930         case CS_BIDIR_RD_UNDERRUN:
1931                 ql_dbg(ql_dbg_user, vha, 0x70b6,
1932                     "Command completed with read data data underrun "
1933                     "thread_id=%d\n", thread_id);
1934                 rval = EXT_STATUS_DATA_UNDERRUN;
1935                 break;
1936
1937         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
1938                 ql_dbg(ql_dbg_user, vha, 0x70b7,
1939                     "Command completed with read data under and write data "
1940                     "overrun thread_id=%d\n", thread_id);
1941                 rval = EXT_STATUS_DATA_UNDERRUN;
1942                 break;
1943
1944         case CS_BIDIR_RD_WR_UNDERRUN:
1945                 ql_dbg(ql_dbg_user, vha, 0x70b8,
1946                     "Command completed with read and write data underrun "
1947                     "thread_id=%d\n", thread_id);
1948                 rval = EXT_STATUS_DATA_UNDERRUN;
1949                 break;
1950
1951         case CS_BIDIR_DMA:
1952                 ql_dbg(ql_dbg_user, vha, 0x70b9,
1953                     "Command completed with data DMA error thread_id=%d\n",
1954                     thread_id);
1955                 rval = EXT_STATUS_DMA_ERR;
1956                 break;
1957
1958         case CS_TIMEOUT:
1959                 ql_dbg(ql_dbg_user, vha, 0x70ba,
1960                     "Command completed with timeout thread_id=%d\n",
1961                     thread_id);
1962                 rval = EXT_STATUS_TIMEOUT;
1963                 break;
1964         default:
1965                 ql_dbg(ql_dbg_user, vha, 0x70bb,
1966                     "Command completed with completion status=0x%x "
1967                     "thread_id=%d\n", comp_status, thread_id);
1968                 rval = EXT_STATUS_ERR;
1969                 break;
1970         }
1971                 bsg_job->reply->reply_payload_rcv_len = 0;
1972
1973 done:
1974         /* Return the vendor specific reply to API */
1975         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
1976         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1977         /* Always return DID_OK, bsg will send the vendor specific response
1978          * in this case only */
1979         sp->done(vha, sp, (DID_OK << 6));
1980
1981 }
1982
1983 /**
1984  * qla2x00_status_entry() - Process a Status IOCB entry.
1985  * @ha: SCSI driver HA context
1986  * @pkt: Entry pointer
1987  */
1988 static void
1989 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1990 {
1991         srb_t           *sp;
1992         fc_port_t       *fcport;
1993         struct scsi_cmnd *cp;
1994         sts_entry_t *sts;
1995         struct sts_entry_24xx *sts24;
1996         uint16_t        comp_status;
1997         uint16_t        scsi_status;
1998         uint16_t        ox_id;
1999         uint8_t         lscsi_status;
2000         int32_t         resid;
2001         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2002             fw_resid_len;
2003         uint8_t         *rsp_info, *sense_data;
2004         struct qla_hw_data *ha = vha->hw;
2005         uint32_t handle;
2006         uint16_t que;
2007         struct req_que *req;
2008         int logit = 1;
2009         int res = 0;
2010         uint16_t state_flags = 0;
2011         uint16_t retry_delay = 0;
2012
2013         sts = (sts_entry_t *) pkt;
2014         sts24 = (struct sts_entry_24xx *) pkt;
2015         if (IS_FWI2_CAPABLE(ha)) {
2016                 comp_status = le16_to_cpu(sts24->comp_status);
2017                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2018                 state_flags = le16_to_cpu(sts24->state_flags);
2019         } else {
2020                 comp_status = le16_to_cpu(sts->comp_status);
2021                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2022         }
2023         handle = (uint32_t) LSW(sts->handle);
2024         que = MSW(sts->handle);
2025         req = ha->req_q_map[que];
2026
2027         /* Check for invalid queue pointer */
2028         if (req == NULL ||
2029             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2030                 ql_dbg(ql_dbg_io, vha, 0x3059,
2031                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2032                     "que=%u.\n", sts->handle, req, que);
2033                 return;
2034         }
2035
2036         /* Validate handle. */
2037         if (handle < req->num_outstanding_cmds)
2038                 sp = req->outstanding_cmds[handle];
2039         else
2040                 sp = NULL;
2041
2042         if (sp == NULL) {
2043                 ql_dbg(ql_dbg_io, vha, 0x3017,
2044                     "Invalid status handle (0x%x).\n", sts->handle);
2045
2046                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2047                         if (IS_P3P_TYPE(ha))
2048                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2049                         else
2050                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2051                         qla2xxx_wake_dpc(vha);
2052                 }
2053                 return;
2054         }
2055
2056         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2057                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2058                 return;
2059         }
2060
2061         /* Task Management completion. */
2062         if (sp->type == SRB_TM_CMD) {
2063                 qla24xx_tm_iocb_entry(vha, req, pkt);
2064                 return;
2065         }
2066
2067         /* Fast path completion. */
2068         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2069                 qla2x00_process_completed_request(vha, req, handle);
2070
2071                 return;
2072         }
2073
2074         req->outstanding_cmds[handle] = NULL;
2075         cp = GET_CMD_SP(sp);
2076         if (cp == NULL) {
2077                 ql_dbg(ql_dbg_io, vha, 0x3018,
2078                     "Command already returned (0x%x/%p).\n",
2079                     sts->handle, sp);
2080
2081                 return;
2082         }
2083
2084         lscsi_status = scsi_status & STATUS_MASK;
2085
2086         fcport = sp->fcport;
2087
2088         ox_id = 0;
2089         sense_len = par_sense_len = rsp_info_len = resid_len =
2090             fw_resid_len = 0;
2091         if (IS_FWI2_CAPABLE(ha)) {
2092                 if (scsi_status & SS_SENSE_LEN_VALID)
2093                         sense_len = le32_to_cpu(sts24->sense_len);
2094                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2095                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2096                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2097                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
2098                 if (comp_status == CS_DATA_UNDERRUN)
2099                         fw_resid_len = le32_to_cpu(sts24->residual_len);
2100                 rsp_info = sts24->data;
2101                 sense_data = sts24->data;
2102                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2103                 ox_id = le16_to_cpu(sts24->ox_id);
2104                 par_sense_len = sizeof(sts24->data);
2105                 /* Valid values of the retry delay timer are 0x1-0xffef */
2106                 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1)
2107                         retry_delay = sts24->retry_delay;
2108         } else {
2109                 if (scsi_status & SS_SENSE_LEN_VALID)
2110                         sense_len = le16_to_cpu(sts->req_sense_length);
2111                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2112                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2113                 resid_len = le32_to_cpu(sts->residual_length);
2114                 rsp_info = sts->rsp_info;
2115                 sense_data = sts->req_sense_data;
2116                 par_sense_len = sizeof(sts->req_sense_data);
2117         }
2118
2119         /* Check for any FCP transport errors. */
2120         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2121                 /* Sense data lies beyond any FCP RESPONSE data. */
2122                 if (IS_FWI2_CAPABLE(ha)) {
2123                         sense_data += rsp_info_len;
2124                         par_sense_len -= rsp_info_len;
2125                 }
2126                 if (rsp_info_len > 3 && rsp_info[3]) {
2127                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2128                             "FCP I/O protocol failure (0x%x/0x%x).\n",
2129                             rsp_info_len, rsp_info[3]);
2130
2131                         res = DID_BUS_BUSY << 16;
2132                         goto out;
2133                 }
2134         }
2135
2136         /* Check for overrun. */
2137         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2138             scsi_status & SS_RESIDUAL_OVER)
2139                 comp_status = CS_DATA_OVERRUN;
2140
2141         /*
2142          * Check retry_delay_timer value if we receive a busy or
2143          * queue full.
2144          */
2145         if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2146             lscsi_status == SAM_STAT_BUSY)
2147                 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2148
2149         /*
2150          * Based on Host and scsi status generate status code for Linux
2151          */
2152         switch (comp_status) {
2153         case CS_COMPLETE:
2154         case CS_QUEUE_FULL:
2155                 if (scsi_status == 0) {
2156                         res = DID_OK << 16;
2157                         break;
2158                 }
2159                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2160                         resid = resid_len;
2161                         scsi_set_resid(cp, resid);
2162
2163                         if (!lscsi_status &&
2164                             ((unsigned)(scsi_bufflen(cp) - resid) <
2165                              cp->underflow)) {
2166                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2167                                     "Mid-layer underflow "
2168                                     "detected (0x%x of 0x%x bytes).\n",
2169                                     resid, scsi_bufflen(cp));
2170
2171                                 res = DID_ERROR << 16;
2172                                 break;
2173                         }
2174                 }
2175                 res = DID_OK << 16 | lscsi_status;
2176
2177                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2178                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2179                             "QUEUE FULL detected.\n");
2180                         break;
2181                 }
2182                 logit = 0;
2183                 if (lscsi_status != SS_CHECK_CONDITION)
2184                         break;
2185
2186                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2187                 if (!(scsi_status & SS_SENSE_LEN_VALID))
2188                         break;
2189
2190                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2191                     rsp, res);
2192                 break;
2193
2194         case CS_DATA_UNDERRUN:
2195                 /* Use F/W calculated residual length. */
2196                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2197                 scsi_set_resid(cp, resid);
2198                 if (scsi_status & SS_RESIDUAL_UNDER) {
2199                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2200                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2201                                     "Dropped frame(s) detected "
2202                                     "(0x%x of 0x%x bytes).\n",
2203                                     resid, scsi_bufflen(cp));
2204
2205                                 res = DID_ERROR << 16 | lscsi_status;
2206                                 goto check_scsi_status;
2207                         }
2208
2209                         if (!lscsi_status &&
2210                             ((unsigned)(scsi_bufflen(cp) - resid) <
2211                             cp->underflow)) {
2212                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2213                                     "Mid-layer underflow "
2214                                     "detected (0x%x of 0x%x bytes).\n",
2215                                     resid, scsi_bufflen(cp));
2216
2217                                 res = DID_ERROR << 16;
2218                                 break;
2219                         }
2220                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2221                             lscsi_status != SAM_STAT_BUSY) {
2222                         /*
2223                          * scsi status of task set and busy are considered to be
2224                          * task not completed.
2225                          */
2226
2227                         ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2228                             "Dropped frame(s) detected (0x%x "
2229                             "of 0x%x bytes).\n", resid,
2230                             scsi_bufflen(cp));
2231
2232                         res = DID_ERROR << 16 | lscsi_status;
2233                         goto check_scsi_status;
2234                 } else {
2235                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2236                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2237                             scsi_status, lscsi_status);
2238                 }
2239
2240                 res = DID_OK << 16 | lscsi_status;
2241                 logit = 0;
2242
2243 check_scsi_status:
2244                 /*
2245                  * Check to see if SCSI Status is non zero. If so report SCSI
2246                  * Status.
2247                  */
2248                 if (lscsi_status != 0) {
2249                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2250                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2251                                     "QUEUE FULL detected.\n");
2252                                 logit = 1;
2253                                 break;
2254                         }
2255                         if (lscsi_status != SS_CHECK_CONDITION)
2256                                 break;
2257
2258                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2259                         if (!(scsi_status & SS_SENSE_LEN_VALID))
2260                                 break;
2261
2262                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
2263                             sense_len, rsp, res);
2264                 }
2265                 break;
2266
2267         case CS_PORT_LOGGED_OUT:
2268         case CS_PORT_CONFIG_CHG:
2269         case CS_PORT_BUSY:
2270         case CS_INCOMPLETE:
2271         case CS_PORT_UNAVAILABLE:
2272         case CS_TIMEOUT:
2273         case CS_RESET:
2274
2275                 /*
2276                  * We are going to have the fc class block the rport
2277                  * while we try to recover so instruct the mid layer
2278                  * to requeue until the class decides how to handle this.
2279                  */
2280                 res = DID_TRANSPORT_DISRUPTED << 16;
2281
2282                 if (comp_status == CS_TIMEOUT) {
2283                         if (IS_FWI2_CAPABLE(ha))
2284                                 break;
2285                         else if ((le16_to_cpu(sts->status_flags) &
2286                             SF_LOGOUT_SENT) == 0)
2287                                 break;
2288                 }
2289
2290                 ql_dbg(ql_dbg_io, fcport->vha, 0x3021,
2291                     "Port to be marked lost on fcport=%02x%02x%02x, current "
2292                     "port state= %s.\n", fcport->d_id.b.domain,
2293                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
2294                     port_state_str[atomic_read(&fcport->state)]);
2295
2296                 if (atomic_read(&fcport->state) == FCS_ONLINE)
2297                         qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2298                 break;
2299
2300         case CS_ABORTED:
2301                 res = DID_RESET << 16;
2302                 break;
2303
2304         case CS_DIF_ERROR:
2305                 logit = qla2x00_handle_dif_error(sp, sts24);
2306                 res = cp->result;
2307                 break;
2308
2309         case CS_TRANSPORT:
2310                 res = DID_ERROR << 16;
2311
2312                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2313                         break;
2314
2315                 if (state_flags & BIT_4)
2316                         scmd_printk(KERN_WARNING, cp,
2317                             "Unsupported device '%s' found.\n",
2318                             cp->device->vendor);
2319                 break;
2320
2321         default:
2322                 res = DID_ERROR << 16;
2323                 break;
2324         }
2325
2326 out:
2327         if (logit)
2328                 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2329                     "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2330                     "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2331                     "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
2332                     comp_status, scsi_status, res, vha->host_no,
2333                     cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2334                     fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2335                     cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2336                     resid_len, fw_resid_len);
2337
2338         if (rsp->status_srb == NULL)
2339                 sp->done(ha, sp, res);
2340 }
2341
2342 /**
2343  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2344  * @ha: SCSI driver HA context
2345  * @pkt: Entry pointer
2346  *
2347  * Extended sense data.
2348  */
2349 static void
2350 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2351 {
2352         uint8_t sense_sz = 0;
2353         struct qla_hw_data *ha = rsp->hw;
2354         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2355         srb_t *sp = rsp->status_srb;
2356         struct scsi_cmnd *cp;
2357         uint32_t sense_len;
2358         uint8_t *sense_ptr;
2359
2360         if (!sp || !GET_CMD_SENSE_LEN(sp))
2361                 return;
2362
2363         sense_len = GET_CMD_SENSE_LEN(sp);
2364         sense_ptr = GET_CMD_SENSE_PTR(sp);
2365
2366         cp = GET_CMD_SP(sp);
2367         if (cp == NULL) {
2368                 ql_log(ql_log_warn, vha, 0x3025,
2369                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2370
2371                 rsp->status_srb = NULL;
2372                 return;
2373         }
2374
2375         if (sense_len > sizeof(pkt->data))
2376                 sense_sz = sizeof(pkt->data);
2377         else
2378                 sense_sz = sense_len;
2379
2380         /* Move sense data. */
2381         if (IS_FWI2_CAPABLE(ha))
2382                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2383         memcpy(sense_ptr, pkt->data, sense_sz);
2384         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2385                 sense_ptr, sense_sz);
2386
2387         sense_len -= sense_sz;
2388         sense_ptr += sense_sz;
2389
2390         SET_CMD_SENSE_PTR(sp, sense_ptr);
2391         SET_CMD_SENSE_LEN(sp, sense_len);
2392
2393         /* Place command on done queue. */
2394         if (sense_len == 0) {
2395                 rsp->status_srb = NULL;
2396                 sp->done(ha, sp, cp->result);
2397         }
2398 }
2399
2400 /**
2401  * qla2x00_error_entry() - Process an error entry.
2402  * @ha: SCSI driver HA context
2403  * @pkt: Entry pointer
2404  */
2405 static void
2406 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2407 {
2408         srb_t *sp;
2409         struct qla_hw_data *ha = vha->hw;
2410         const char func[] = "ERROR-IOCB";
2411         uint16_t que = MSW(pkt->handle);
2412         struct req_que *req = NULL;
2413         int res = DID_ERROR << 16;
2414
2415         ql_dbg(ql_dbg_async, vha, 0x502a,
2416             "type of error status in response: 0x%x\n", pkt->entry_status);
2417
2418         if (que >= ha->max_req_queues || !ha->req_q_map[que])
2419                 goto fatal;
2420
2421         req = ha->req_q_map[que];
2422
2423         if (pkt->entry_status & RF_BUSY)
2424                 res = DID_BUS_BUSY << 16;
2425
2426         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2427         if (sp) {
2428                 sp->done(ha, sp, res);
2429                 return;
2430         }
2431 fatal:
2432         ql_log(ql_log_warn, vha, 0x5030,
2433             "Error entry - invalid handle/queue.\n");
2434
2435         if (IS_P3P_TYPE(ha))
2436                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2437         else
2438                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2439         qla2xxx_wake_dpc(vha);
2440 }
2441
2442 /**
2443  * qla24xx_mbx_completion() - Process mailbox command completions.
2444  * @ha: SCSI driver HA context
2445  * @mb0: Mailbox0 register
2446  */
2447 static void
2448 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2449 {
2450         uint16_t        cnt;
2451         uint32_t        mboxes;
2452         uint16_t __iomem *wptr;
2453         struct qla_hw_data *ha = vha->hw;
2454         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2455
2456         /* Read all mbox registers? */
2457         mboxes = (1 << ha->mbx_count) - 1;
2458         if (!ha->mcp)
2459                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2460         else
2461                 mboxes = ha->mcp->in_mb;
2462
2463         /* Load return mailbox registers. */
2464         ha->flags.mbox_int = 1;
2465         ha->mailbox_out[0] = mb0;
2466         mboxes >>= 1;
2467         wptr = (uint16_t __iomem *)&reg->mailbox1;
2468
2469         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2470                 if (mboxes & BIT_0)
2471                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2472
2473                 mboxes >>= 1;
2474                 wptr++;
2475         }
2476 }
2477
2478 static void
2479 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2480         struct abort_entry_24xx *pkt)
2481 {
2482         const char func[] = "ABT_IOCB";
2483         srb_t *sp;
2484         struct srb_iocb *abt;
2485
2486         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2487         if (!sp)
2488                 return;
2489
2490         abt = &sp->u.iocb_cmd;
2491         abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle);
2492         sp->done(vha, sp, 0);
2493 }
2494
2495 /**
2496  * qla24xx_process_response_queue() - Process response queue entries.
2497  * @ha: SCSI driver HA context
2498  */
2499 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2500         struct rsp_que *rsp)
2501 {
2502         struct sts_entry_24xx *pkt;
2503         struct qla_hw_data *ha = vha->hw;
2504
2505         if (!vha->flags.online)
2506                 return;
2507
2508         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2509                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2510
2511                 rsp->ring_index++;
2512                 if (rsp->ring_index == rsp->length) {
2513                         rsp->ring_index = 0;
2514                         rsp->ring_ptr = rsp->ring;
2515                 } else {
2516                         rsp->ring_ptr++;
2517                 }
2518
2519                 if (pkt->entry_status != 0) {
2520                         qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2521
2522                         if (qlt_24xx_process_response_error(vha, pkt))
2523                                 goto process_err;
2524
2525                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2526                         wmb();
2527                         continue;
2528                 }
2529 process_err:
2530
2531                 switch (pkt->entry_type) {
2532                 case STATUS_TYPE:
2533                         qla2x00_status_entry(vha, rsp, pkt);
2534                         break;
2535                 case STATUS_CONT_TYPE:
2536                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2537                         break;
2538                 case VP_RPT_ID_IOCB_TYPE:
2539                         qla24xx_report_id_acquisition(vha,
2540                             (struct vp_rpt_id_entry_24xx *)pkt);
2541                         break;
2542                 case LOGINOUT_PORT_IOCB_TYPE:
2543                         qla24xx_logio_entry(vha, rsp->req,
2544                             (struct logio_entry_24xx *)pkt);
2545                         break;
2546                 case CT_IOCB_TYPE:
2547                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2548                         break;
2549                 case ELS_IOCB_TYPE:
2550                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2551                         break;
2552                 case ABTS_RECV_24XX:
2553                         /* ensure that the ATIO queue is empty */
2554                         qlt_24xx_process_atio_queue(vha);
2555                 case ABTS_RESP_24XX:
2556                 case CTIO_TYPE7:
2557                 case NOTIFY_ACK_TYPE:
2558                 case CTIO_CRC2:
2559                         qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2560                         break;
2561                 case MARKER_TYPE:
2562                         /* Do nothing in this case, this check is to prevent it
2563                          * from falling into default case
2564                          */
2565                         break;
2566                 case ABORT_IOCB_TYPE:
2567                         qla24xx_abort_iocb_entry(vha, rsp->req,
2568                             (struct abort_entry_24xx *)pkt);
2569                         break;
2570                 default:
2571                         /* Type Not Supported. */
2572                         ql_dbg(ql_dbg_async, vha, 0x5042,
2573                             "Received unknown response pkt type %x "
2574                             "entry status=%x.\n",
2575                             pkt->entry_type, pkt->entry_status);
2576                         break;
2577                 }
2578                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2579                 wmb();
2580         }
2581
2582         /* Adjust ring index */
2583         if (IS_P3P_TYPE(ha)) {
2584                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2585                 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2586         } else
2587                 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2588 }
2589
2590 static void
2591 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2592 {
2593         int rval;
2594         uint32_t cnt;
2595         struct qla_hw_data *ha = vha->hw;
2596         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2597
2598         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
2599             !IS_QLA27XX(ha))
2600                 return;
2601
2602         rval = QLA_SUCCESS;
2603         WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2604         RD_REG_DWORD(&reg->iobase_addr);
2605         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2606         for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2607             rval == QLA_SUCCESS; cnt--) {
2608                 if (cnt) {
2609                         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2610                         udelay(10);
2611                 } else
2612                         rval = QLA_FUNCTION_TIMEOUT;
2613         }
2614         if (rval == QLA_SUCCESS)
2615                 goto next_test;
2616
2617         rval = QLA_SUCCESS;
2618         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2619         for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2620             rval == QLA_SUCCESS; cnt--) {
2621                 if (cnt) {
2622                         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2623                         udelay(10);
2624                 } else
2625                         rval = QLA_FUNCTION_TIMEOUT;
2626         }
2627         if (rval != QLA_SUCCESS)
2628                 goto done;
2629
2630 next_test:
2631         if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2632                 ql_log(ql_log_info, vha, 0x504c,
2633                     "Additional code -- 0x55AA.\n");
2634
2635 done:
2636         WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2637         RD_REG_DWORD(&reg->iobase_window);
2638 }
2639
2640 /**
2641  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2642  * @irq:
2643  * @dev_id: SCSI driver HA context
2644  *
2645  * Called by system whenever the host adapter generates an interrupt.
2646  *
2647  * Returns handled flag.
2648  */
2649 irqreturn_t
2650 qla24xx_intr_handler(int irq, void *dev_id)
2651 {
2652         scsi_qla_host_t *vha;
2653         struct qla_hw_data *ha;
2654         struct device_reg_24xx __iomem *reg;
2655         int             status;
2656         unsigned long   iter;
2657         uint32_t        stat;
2658         uint32_t        hccr;
2659         uint16_t        mb[8];
2660         struct rsp_que *rsp;
2661         unsigned long   flags;
2662
2663         rsp = (struct rsp_que *) dev_id;
2664         if (!rsp) {
2665                 ql_log(ql_log_info, NULL, 0x5059,
2666                     "%s: NULL response queue pointer.\n", __func__);
2667                 return IRQ_NONE;
2668         }
2669
2670         ha = rsp->hw;
2671         reg = &ha->iobase->isp24;
2672         status = 0;
2673
2674         if (unlikely(pci_channel_offline(ha->pdev)))
2675                 return IRQ_HANDLED;
2676
2677         spin_lock_irqsave(&ha->hardware_lock, flags);
2678         vha = pci_get_drvdata(ha->pdev);
2679         for (iter = 50; iter--; ) {
2680                 stat = RD_REG_DWORD(&reg->host_status);
2681                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2682                         break;
2683                 if (stat & HSRX_RISC_PAUSED) {
2684                         if (unlikely(pci_channel_offline(ha->pdev)))
2685                                 break;
2686
2687                         hccr = RD_REG_DWORD(&reg->hccr);
2688
2689                         ql_log(ql_log_warn, vha, 0x504b,
2690                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
2691                             hccr);
2692
2693                         qla2xxx_check_risc_status(vha);
2694
2695                         ha->isp_ops->fw_dump(vha, 1);
2696                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2697                         break;
2698                 } else if ((stat & HSRX_RISC_INT) == 0)
2699                         break;
2700
2701                 switch (stat & 0xff) {
2702                 case INTR_ROM_MB_SUCCESS:
2703                 case INTR_ROM_MB_FAILED:
2704                 case INTR_MB_SUCCESS:
2705                 case INTR_MB_FAILED:
2706                         qla24xx_mbx_completion(vha, MSW(stat));
2707                         status |= MBX_INTERRUPT;
2708
2709                         break;
2710                 case INTR_ASYNC_EVENT:
2711                         mb[0] = MSW(stat);
2712                         mb[1] = RD_REG_WORD(&reg->mailbox1);
2713                         mb[2] = RD_REG_WORD(&reg->mailbox2);
2714                         mb[3] = RD_REG_WORD(&reg->mailbox3);
2715                         qla2x00_async_event(vha, rsp, mb);
2716                         break;
2717                 case INTR_RSP_QUE_UPDATE:
2718                 case INTR_RSP_QUE_UPDATE_83XX:
2719                         qla24xx_process_response_queue(vha, rsp);
2720                         break;
2721                 case INTR_ATIO_QUE_UPDATE:
2722                         qlt_24xx_process_atio_queue(vha);
2723                         break;
2724                 case INTR_ATIO_RSP_QUE_UPDATE:
2725                         qlt_24xx_process_atio_queue(vha);
2726                         qla24xx_process_response_queue(vha, rsp);
2727                         break;
2728                 default:
2729                         ql_dbg(ql_dbg_async, vha, 0x504f,
2730                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
2731                         break;
2732                 }
2733                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2734                 RD_REG_DWORD_RELAXED(&reg->hccr);
2735                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
2736                         ndelay(3500);
2737         }
2738         qla2x00_handle_mbx_completion(ha, status);
2739         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2740
2741         return IRQ_HANDLED;
2742 }
2743
2744 static irqreturn_t
2745 qla24xx_msix_rsp_q(int irq, void *dev_id)
2746 {
2747         struct qla_hw_data *ha;
2748         struct rsp_que *rsp;
2749         struct device_reg_24xx __iomem *reg;
2750         struct scsi_qla_host *vha;
2751         unsigned long flags;
2752         uint32_t stat = 0;
2753
2754         rsp = (struct rsp_que *) dev_id;
2755         if (!rsp) {
2756                 ql_log(ql_log_info, NULL, 0x505a,
2757                     "%s: NULL response queue pointer.\n", __func__);
2758                 return IRQ_NONE;
2759         }
2760         ha = rsp->hw;
2761         reg = &ha->iobase->isp24;
2762
2763         spin_lock_irqsave(&ha->hardware_lock, flags);
2764
2765         vha = pci_get_drvdata(ha->pdev);
2766         /*
2767          * Use host_status register to check to PCI disconnection before we
2768          * we process the response queue.
2769          */
2770         stat = RD_REG_DWORD(&reg->host_status);
2771         if (qla2x00_check_reg32_for_disconnect(vha, stat))
2772                 goto out;
2773         qla24xx_process_response_queue(vha, rsp);
2774         if (!ha->flags.disable_msix_handshake) {
2775                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2776                 RD_REG_DWORD_RELAXED(&reg->hccr);
2777         }
2778 out:
2779         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2780
2781         return IRQ_HANDLED;
2782 }
2783
2784 static irqreturn_t
2785 qla25xx_msix_rsp_q(int irq, void *dev_id)
2786 {
2787         struct qla_hw_data *ha;
2788         scsi_qla_host_t *vha;
2789         struct rsp_que *rsp;
2790         struct device_reg_24xx __iomem *reg;
2791         unsigned long flags;
2792         uint32_t hccr = 0;
2793
2794         rsp = (struct rsp_que *) dev_id;
2795         if (!rsp) {
2796                 ql_log(ql_log_info, NULL, 0x505b,
2797                     "%s: NULL response queue pointer.\n", __func__);
2798                 return IRQ_NONE;
2799         }
2800         ha = rsp->hw;
2801         vha = pci_get_drvdata(ha->pdev);
2802
2803         /* Clear the interrupt, if enabled, for this response queue */
2804         if (!ha->flags.disable_msix_handshake) {
2805                 reg = &ha->iobase->isp24;
2806                 spin_lock_irqsave(&ha->hardware_lock, flags);
2807                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2808                 hccr = RD_REG_DWORD_RELAXED(&reg->hccr);
2809                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2810         }
2811         if (qla2x00_check_reg32_for_disconnect(vha, hccr))
2812                 goto out;
2813         queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2814
2815 out:
2816         return IRQ_HANDLED;
2817 }
2818
2819 static irqreturn_t
2820 qla24xx_msix_default(int irq, void *dev_id)
2821 {
2822         scsi_qla_host_t *vha;
2823         struct qla_hw_data *ha;
2824         struct rsp_que *rsp;
2825         struct device_reg_24xx __iomem *reg;
2826         int             status;
2827         uint32_t        stat;
2828         uint32_t        hccr;
2829         uint16_t        mb[8];
2830         unsigned long flags;
2831
2832         rsp = (struct rsp_que *) dev_id;
2833         if (!rsp) {
2834                 ql_log(ql_log_info, NULL, 0x505c,
2835                     "%s: NULL response queue pointer.\n", __func__);
2836                 return IRQ_NONE;
2837         }
2838         ha = rsp->hw;
2839         reg = &ha->iobase->isp24;
2840         status = 0;
2841
2842         spin_lock_irqsave(&ha->hardware_lock, flags);
2843         vha = pci_get_drvdata(ha->pdev);
2844         do {
2845                 stat = RD_REG_DWORD(&reg->host_status);
2846                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2847                         break;
2848                 if (stat & HSRX_RISC_PAUSED) {
2849                         if (unlikely(pci_channel_offline(ha->pdev)))
2850                                 break;
2851
2852                         hccr = RD_REG_DWORD(&reg->hccr);
2853
2854                         ql_log(ql_log_info, vha, 0x5050,
2855                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
2856                             hccr);
2857
2858                         qla2xxx_check_risc_status(vha);
2859
2860                         ha->isp_ops->fw_dump(vha, 1);
2861                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2862                         break;
2863                 } else if ((stat & HSRX_RISC_INT) == 0)
2864                         break;
2865
2866                 switch (stat & 0xff) {
2867                 case INTR_ROM_MB_SUCCESS:
2868                 case INTR_ROM_MB_FAILED:
2869                 case INTR_MB_SUCCESS:
2870                 case INTR_MB_FAILED:
2871                         qla24xx_mbx_completion(vha, MSW(stat));
2872                         status |= MBX_INTERRUPT;
2873
2874                         break;
2875                 case INTR_ASYNC_EVENT:
2876                         mb[0] = MSW(stat);
2877                         mb[1] = RD_REG_WORD(&reg->mailbox1);
2878                         mb[2] = RD_REG_WORD(&reg->mailbox2);
2879                         mb[3] = RD_REG_WORD(&reg->mailbox3);
2880                         qla2x00_async_event(vha, rsp, mb);
2881                         break;
2882                 case INTR_RSP_QUE_UPDATE:
2883                 case INTR_RSP_QUE_UPDATE_83XX:
2884                         qla24xx_process_response_queue(vha, rsp);
2885                         break;
2886                 case INTR_ATIO_QUE_UPDATE:
2887                         qlt_24xx_process_atio_queue(vha);
2888                         break;
2889                 case INTR_ATIO_RSP_QUE_UPDATE:
2890                         qlt_24xx_process_atio_queue(vha);
2891                         qla24xx_process_response_queue(vha, rsp);
2892                         break;
2893                 default:
2894                         ql_dbg(ql_dbg_async, vha, 0x5051,
2895                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
2896                         break;
2897                 }
2898                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2899         } while (0);
2900         qla2x00_handle_mbx_completion(ha, status);
2901         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2902
2903         return IRQ_HANDLED;
2904 }
2905
2906 /* Interrupt handling helpers. */
2907
2908 struct qla_init_msix_entry {
2909         const char *name;
2910         irq_handler_t handler;
2911 };
2912
2913 static struct qla_init_msix_entry msix_entries[3] = {
2914         { "qla2xxx (default)", qla24xx_msix_default },
2915         { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2916         { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2917 };
2918
2919 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2920         { "qla2xxx (default)", qla82xx_msix_default },
2921         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2922 };
2923
2924 static struct qla_init_msix_entry qla83xx_msix_entries[3] = {
2925         { "qla2xxx (default)", qla24xx_msix_default },
2926         { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2927         { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
2928 };
2929
2930 static void
2931 qla24xx_disable_msix(struct qla_hw_data *ha)
2932 {
2933         int i;
2934         struct qla_msix_entry *qentry;
2935         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2936
2937         for (i = 0; i < ha->msix_count; i++) {
2938                 qentry = &ha->msix_entries[i];
2939                 if (qentry->have_irq)
2940                         free_irq(qentry->vector, qentry->rsp);
2941         }
2942         pci_disable_msix(ha->pdev);
2943         kfree(ha->msix_entries);
2944         ha->msix_entries = NULL;
2945         ha->flags.msix_enabled = 0;
2946         ql_dbg(ql_dbg_init, vha, 0x0042,
2947             "Disabled the MSI.\n");
2948 }
2949
2950 static int
2951 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2952 {
2953 #define MIN_MSIX_COUNT  2
2954 #define ATIO_VECTOR     2
2955         int i, ret;
2956         struct msix_entry *entries;
2957         struct qla_msix_entry *qentry;
2958         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2959
2960         entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2961                         GFP_KERNEL);
2962         if (!entries) {
2963                 ql_log(ql_log_warn, vha, 0x00bc,
2964                     "Failed to allocate memory for msix_entry.\n");
2965                 return -ENOMEM;
2966         }
2967
2968         for (i = 0; i < ha->msix_count; i++)
2969                 entries[i].entry = i;
2970
2971         ret = pci_enable_msix_range(ha->pdev,
2972                                     entries, MIN_MSIX_COUNT, ha->msix_count);
2973         if (ret < 0) {
2974                 ql_log(ql_log_fatal, vha, 0x00c7,
2975                     "MSI-X: Failed to enable support, "
2976                     "giving   up -- %d/%d.\n",
2977                     ha->msix_count, ret);
2978                 goto msix_out;
2979         } else if (ret < ha->msix_count) {
2980                 ql_log(ql_log_warn, vha, 0x00c6,
2981                     "MSI-X: Failed to enable support "
2982                     "-- %d/%d\n Retry with %d vectors.\n",
2983                     ha->msix_count, ret, ret);
2984         }
2985         ha->msix_count = ret;
2986         ha->max_rsp_queues = ha->msix_count - 1;
2987         ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2988                                 ha->msix_count, GFP_KERNEL);
2989         if (!ha->msix_entries) {
2990                 ql_log(ql_log_fatal, vha, 0x00c8,
2991                     "Failed to allocate memory for ha->msix_entries.\n");
2992                 ret = -ENOMEM;
2993                 goto msix_out;
2994         }
2995         ha->flags.msix_enabled = 1;
2996
2997         for (i = 0; i < ha->msix_count; i++) {
2998                 qentry = &ha->msix_entries[i];
2999                 qentry->vector = entries[i].vector;
3000                 qentry->entry = entries[i].entry;
3001                 qentry->have_irq = 0;
3002                 qentry->rsp = NULL;
3003         }
3004
3005         /* Enable MSI-X vectors for the base queue */
3006         for (i = 0; i < 2; i++) {
3007                 qentry = &ha->msix_entries[i];
3008                 if (IS_P3P_TYPE(ha))
3009                         ret = request_irq(qentry->vector,
3010                                 qla82xx_msix_entries[i].handler,
3011                                 0, qla82xx_msix_entries[i].name, rsp);
3012                 else
3013                         ret = request_irq(qentry->vector,
3014                                 msix_entries[i].handler,
3015                                 0, msix_entries[i].name, rsp);
3016                 if (ret)
3017                         goto msix_register_fail;
3018                 qentry->have_irq = 1;
3019                 qentry->rsp = rsp;
3020                 rsp->msix = qentry;
3021         }
3022
3023         /*
3024          * If target mode is enable, also request the vector for the ATIO
3025          * queue.
3026          */
3027         if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
3028                 qentry = &ha->msix_entries[ATIO_VECTOR];
3029                 ret = request_irq(qentry->vector,
3030                         qla83xx_msix_entries[ATIO_VECTOR].handler,
3031                         0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp);
3032                 qentry->have_irq = 1;
3033                 qentry->rsp = rsp;
3034                 rsp->msix = qentry;
3035         }
3036
3037 msix_register_fail:
3038         if (ret) {
3039                 ql_log(ql_log_fatal, vha, 0x00cb,
3040                     "MSI-X: unable to register handler -- %x/%d.\n",
3041                     qentry->vector, ret);
3042                 qla24xx_disable_msix(ha);
3043                 ha->mqenable = 0;
3044                 goto msix_out;
3045         }
3046
3047         /* Enable MSI-X vector for response queue update for queue 0 */
3048         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3049                 if (ha->msixbase && ha->mqiobase &&
3050                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3051                         ha->mqenable = 1;
3052         } else
3053                 if (ha->mqiobase
3054                     && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3055                         ha->mqenable = 1;
3056         ql_dbg(ql_dbg_multiq, vha, 0xc005,
3057             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3058             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3059         ql_dbg(ql_dbg_init, vha, 0x0055,
3060             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3061             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3062
3063 msix_out:
3064         kfree(entries);
3065         return ret;
3066 }
3067
3068 int
3069 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3070 {
3071         int ret = QLA_FUNCTION_FAILED;
3072         device_reg_t *reg = ha->iobase;
3073         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3074
3075         /* If possible, enable MSI-X. */
3076         if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3077             !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) &&
3078             !IS_QLA27XX(ha))
3079                 goto skip_msi;
3080
3081         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3082                 (ha->pdev->subsystem_device == 0x7040 ||
3083                 ha->pdev->subsystem_device == 0x7041 ||
3084                 ha->pdev->subsystem_device == 0x1705)) {
3085                 ql_log(ql_log_warn, vha, 0x0034,
3086                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3087                         ha->pdev->subsystem_vendor,
3088                         ha->pdev->subsystem_device);
3089                 goto skip_msi;
3090         }
3091
3092         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3093                 ql_log(ql_log_warn, vha, 0x0035,
3094                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3095                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3096                 goto skip_msix;
3097         }
3098
3099         ret = qla24xx_enable_msix(ha, rsp);
3100         if (!ret) {
3101                 ql_dbg(ql_dbg_init, vha, 0x0036,
3102                     "MSI-X: Enabled (0x%X, 0x%X).\n",
3103                     ha->chip_revision, ha->fw_attributes);
3104                 goto clear_risc_ints;
3105         }
3106
3107 skip_msix:
3108
3109         ql_log(ql_log_info, vha, 0x0037,
3110             "Falling back-to MSI mode -%d.\n", ret);
3111
3112         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3113             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3114             !IS_QLA27XX(ha))
3115                 goto skip_msi;
3116
3117         ret = pci_enable_msi(ha->pdev);
3118         if (!ret) {
3119                 ql_dbg(ql_dbg_init, vha, 0x0038,
3120                     "MSI: Enabled.\n");
3121                 ha->flags.msi_enabled = 1;
3122         } else
3123                 ql_log(ql_log_warn, vha, 0x0039,
3124                     "Falling back-to INTa mode -- %d.\n", ret);
3125 skip_msi:
3126
3127         /* Skip INTx on ISP82xx. */
3128         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3129                 return QLA_FUNCTION_FAILED;
3130
3131         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3132             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3133             QLA2XXX_DRIVER_NAME, rsp);
3134         if (ret) {
3135                 ql_log(ql_log_warn, vha, 0x003a,
3136                     "Failed to reserve interrupt %d already in use.\n",
3137                     ha->pdev->irq);
3138                 goto fail;
3139         } else if (!ha->flags.msi_enabled) {
3140                 ql_dbg(ql_dbg_init, vha, 0x0125,
3141                     "INTa mode: Enabled.\n");
3142                 ha->flags.mr_intr_valid = 1;
3143         }
3144
3145 clear_risc_ints:
3146         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3147                 goto fail;
3148
3149         spin_lock_irq(&ha->hardware_lock);
3150         WRT_REG_WORD(&reg->isp.semaphore, 0);
3151         spin_unlock_irq(&ha->hardware_lock);
3152
3153 fail:
3154         return ret;
3155 }
3156
3157 void
3158 qla2x00_free_irqs(scsi_qla_host_t *vha)
3159 {
3160         struct qla_hw_data *ha = vha->hw;
3161         struct rsp_que *rsp;
3162
3163         /*
3164          * We need to check that ha->rsp_q_map is valid in case we are called
3165          * from a probe failure context.
3166          */
3167         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3168                 return;
3169         rsp = ha->rsp_q_map[0];
3170
3171         if (ha->flags.msix_enabled)
3172                 qla24xx_disable_msix(ha);
3173         else if (ha->flags.msi_enabled) {
3174                 free_irq(ha->pdev->irq, rsp);
3175                 pci_disable_msi(ha->pdev);
3176         } else
3177                 free_irq(ha->pdev->irq, rsp);
3178 }
3179
3180
3181 int qla25xx_request_irq(struct rsp_que *rsp)
3182 {
3183         struct qla_hw_data *ha = rsp->hw;
3184         struct qla_init_msix_entry *intr = &msix_entries[2];
3185         struct qla_msix_entry *msix = rsp->msix;
3186         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3187         int ret;
3188
3189         ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
3190         if (ret) {
3191                 ql_log(ql_log_fatal, vha, 0x00e6,
3192                     "MSI-X: Unable to register handler -- %x/%d.\n",
3193                     msix->vector, ret);
3194                 return ret;
3195         }
3196         msix->have_irq = 1;
3197         msix->rsp = rsp;
3198         return ret;
3199 }