linux/drivers/scsi/qla2xxx/qla_isr.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * QLogic Fibre Channel HBA Driver
   4 * Copyright (c)  2003-2014 QLogic Corporation
   5 */
   6#include "qla_def.h"
   7#include "qla_target.h"
   8#include "qla_gbl.h"
   9
  10#include <linux/delay.h>
  11#include <linux/slab.h>
  12#include <linux/cpu.h>
  13#include <linux/t10-pi.h>
  14#include <scsi/scsi_tcq.h>
  15#include <scsi/scsi_bsg_fc.h>
  16#include <scsi/scsi_eh.h>
  17#include <scsi/fc/fc_fs.h>
  18#include <linux/nvme-fc-driver.h>
  19
  20static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
  21static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
  22static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
  23static int qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
  24        sts_entry_t *);
  25static void qla27xx_process_purex_fpin(struct scsi_qla_host *vha,
  26        struct purex_item *item);
  27static struct purex_item *qla24xx_alloc_purex_item(scsi_qla_host_t *vha,
  28        uint16_t size);
  29static struct purex_item *qla24xx_copy_std_pkt(struct scsi_qla_host *vha,
  30        void *pkt);
  31static struct purex_item *qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha,
  32        void **pkt, struct rsp_que **rsp);
  33
  34static void
  35qla27xx_process_purex_fpin(struct scsi_qla_host *vha, struct purex_item *item)
  36{
  37        void *pkt = &item->iocb;
  38        uint16_t pkt_size = item->size;
  39
  40        ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508d,
  41               "%s: Enter\n", __func__);
  42
  43        ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508e,
  44               "-------- ELS REQ -------\n");
  45        ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x508f,
  46                       pkt, pkt_size);
  47
  48        fc_host_fpin_rcv(vha->host, pkt_size, (char *)pkt);
  49}
  50
  51const char *const port_state_str[] = {
  52        "Unknown",
  53        "UNCONFIGURED",
  54        "DEAD",
  55        "LOST",
  56        "ONLINE"
  57};
  58
  59static void
  60qla24xx_process_abts(struct scsi_qla_host *vha, struct purex_item *pkt)
  61{
  62        struct abts_entry_24xx *abts =
  63            (struct abts_entry_24xx *)&pkt->iocb;
  64        struct qla_hw_data *ha = vha->hw;
  65        struct els_entry_24xx *rsp_els;
  66        struct abts_entry_24xx *abts_rsp;
  67        dma_addr_t dma;
  68        uint32_t fctl;
  69        int rval;
  70
  71        ql_dbg(ql_dbg_init, vha, 0x0286, "%s: entered.\n", __func__);
  72
  73        ql_log(ql_log_warn, vha, 0x0287,
  74            "Processing ABTS xchg=%#x oxid=%#x rxid=%#x seqid=%#x seqcnt=%#x\n",
  75            abts->rx_xch_addr_to_abort, abts->ox_id, abts->rx_id,
  76            abts->seq_id, abts->seq_cnt);
  77        ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  78            "-------- ABTS RCV -------\n");
  79        ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  80            (uint8_t *)abts, sizeof(*abts));
  81
  82        rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els), &dma,
  83            GFP_KERNEL);
  84        if (!rsp_els) {
  85                ql_log(ql_log_warn, vha, 0x0287,
  86                    "Failed allocate dma buffer ABTS/ELS RSP.\n");
  87                return;
  88        }
  89
  90        /* terminate exchange */
  91        rsp_els->entry_type = ELS_IOCB_TYPE;
  92        rsp_els->entry_count = 1;
  93        rsp_els->nport_handle = cpu_to_le16(~0);
  94        rsp_els->rx_xchg_address = abts->rx_xch_addr_to_abort;
  95        rsp_els->control_flags = cpu_to_le16(EPD_RX_XCHG);
  96        ql_dbg(ql_dbg_init, vha, 0x0283,
  97            "Sending ELS Response to terminate exchange %#x...\n",
  98            abts->rx_xch_addr_to_abort);
  99        ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 100            "-------- ELS RSP -------\n");
 101        ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 102            (uint8_t *)rsp_els, sizeof(*rsp_els));
 103        rval = qla2x00_issue_iocb(vha, rsp_els, dma, 0);
 104        if (rval) {
 105                ql_log(ql_log_warn, vha, 0x0288,
 106                    "%s: iocb failed to execute -> %x\n", __func__, rval);
 107        } else if (rsp_els->comp_status) {
 108                ql_log(ql_log_warn, vha, 0x0289,
 109                    "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 110                    __func__, rsp_els->comp_status,
 111                    rsp_els->error_subcode_1, rsp_els->error_subcode_2);
 112        } else {
 113                ql_dbg(ql_dbg_init, vha, 0x028a,
 114                    "%s: abort exchange done.\n", __func__);
 115        }
 116
 117        /* send ABTS response */
 118        abts_rsp = (void *)rsp_els;
 119        memset(abts_rsp, 0, sizeof(*abts_rsp));
 120        abts_rsp->entry_type = ABTS_RSP_TYPE;
 121        abts_rsp->entry_count = 1;
 122        abts_rsp->nport_handle = abts->nport_handle;
 123        abts_rsp->vp_idx = abts->vp_idx;
 124        abts_rsp->sof_type = abts->sof_type & 0xf0;
 125        abts_rsp->rx_xch_addr = abts->rx_xch_addr;
 126        abts_rsp->d_id[0] = abts->s_id[0];
 127        abts_rsp->d_id[1] = abts->s_id[1];
 128        abts_rsp->d_id[2] = abts->s_id[2];
 129        abts_rsp->r_ctl = FC_ROUTING_BLD | FC_R_CTL_BLD_BA_ACC;
 130        abts_rsp->s_id[0] = abts->d_id[0];
 131        abts_rsp->s_id[1] = abts->d_id[1];
 132        abts_rsp->s_id[2] = abts->d_id[2];
 133        abts_rsp->cs_ctl = abts->cs_ctl;
 134        /* include flipping bit23 in fctl */
 135        fctl = ~(abts->f_ctl[2] | 0x7F) << 16 |
 136            FC_F_CTL_LAST_SEQ | FC_F_CTL_END_SEQ | FC_F_CTL_SEQ_INIT;
 137        abts_rsp->f_ctl[0] = fctl >> 0 & 0xff;
 138        abts_rsp->f_ctl[1] = fctl >> 8 & 0xff;
 139        abts_rsp->f_ctl[2] = fctl >> 16 & 0xff;
 140        abts_rsp->type = FC_TYPE_BLD;
 141        abts_rsp->rx_id = abts->rx_id;
 142        abts_rsp->ox_id = abts->ox_id;
 143        abts_rsp->payload.ba_acc.aborted_rx_id = abts->rx_id;
 144        abts_rsp->payload.ba_acc.aborted_ox_id = abts->ox_id;
 145        abts_rsp->payload.ba_acc.high_seq_cnt = cpu_to_le16(~0);
 146        abts_rsp->rx_xch_addr_to_abort = abts->rx_xch_addr_to_abort;
 147        ql_dbg(ql_dbg_init, vha, 0x028b,
 148            "Sending BA ACC response to ABTS %#x...\n",
 149            abts->rx_xch_addr_to_abort);
 150        ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 151            "-------- ELS RSP -------\n");
 152        ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 153            (uint8_t *)abts_rsp, sizeof(*abts_rsp));
 154        rval = qla2x00_issue_iocb(vha, abts_rsp, dma, 0);
 155        if (rval) {
 156                ql_log(ql_log_warn, vha, 0x028c,
 157                    "%s: iocb failed to execute -> %x\n", __func__, rval);
 158        } else if (abts_rsp->comp_status) {
 159                ql_log(ql_log_warn, vha, 0x028d,
 160                    "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 161                    __func__, abts_rsp->comp_status,
 162                    abts_rsp->payload.error.subcode1,
 163                    abts_rsp->payload.error.subcode2);
 164        } else {
 165                ql_dbg(ql_dbg_init, vha, 0x028ea,
 166                    "%s: done.\n", __func__);
 167        }
 168
 169        dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, dma);
 170}
 171
 172/**
 173 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
 174 * @irq: interrupt number
 175 * @dev_id: SCSI driver HA context
 176 *
 177 * Called by system whenever the host adapter generates an interrupt.
 178 *
 179 * Returns handled flag.
 180 */
 181irqreturn_t
 182qla2100_intr_handler(int irq, void *dev_id)
 183{
 184        scsi_qla_host_t *vha;
 185        struct qla_hw_data *ha;
 186        struct device_reg_2xxx __iomem *reg;
 187        int             status;
 188        unsigned long   iter;
 189        uint16_t        hccr;
 190        uint16_t        mb[8];
 191        struct rsp_que *rsp;
 192        unsigned long   flags;
 193
 194        rsp = (struct rsp_que *) dev_id;
 195        if (!rsp) {
 196                ql_log(ql_log_info, NULL, 0x505d,
 197                    "%s: NULL response queue pointer.\n", __func__);
 198                return (IRQ_NONE);
 199        }
 200
 201        ha = rsp->hw;
 202        reg = &ha->iobase->isp;
 203        status = 0;
 204
 205        spin_lock_irqsave(&ha->hardware_lock, flags);
 206        vha = pci_get_drvdata(ha->pdev);
 207        for (iter = 50; iter--; ) {
 208                hccr = rd_reg_word(&reg->hccr);
 209                if (qla2x00_check_reg16_for_disconnect(vha, hccr))
 210                        break;
 211                if (hccr & HCCR_RISC_PAUSE) {
 212                        if (pci_channel_offline(ha->pdev))
 213                                break;
 214
 215                        /*
 216                         * Issue a "HARD" reset in order for the RISC interrupt
 217                         * bit to be cleared.  Schedule a big hammer to get
 218                         * out of the RISC PAUSED state.
 219                         */
 220                        wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 221                        rd_reg_word(&reg->hccr);
 222
 223                        ha->isp_ops->fw_dump(vha);
 224                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 225                        break;
 226                } else if ((rd_reg_word(&reg->istatus) & ISR_RISC_INT) == 0)
 227                        break;
 228
 229                if (rd_reg_word(&reg->semaphore) & BIT_0) {
 230                        wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 231                        rd_reg_word(&reg->hccr);
 232
 233                        /* Get mailbox data. */
 234                        mb[0] = RD_MAILBOX_REG(ha, reg, 0);
 235                        if (mb[0] > 0x3fff && mb[0] < 0x8000) {
 236                                qla2x00_mbx_completion(vha, mb[0]);
 237                                status |= MBX_INTERRUPT;
 238                        } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
 239                                mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 240                                mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 241                                mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 242                                qla2x00_async_event(vha, rsp, mb);
 243                        } else {
 244                                /*EMPTY*/
 245                                ql_dbg(ql_dbg_async, vha, 0x5025,
 246                                    "Unrecognized interrupt type (%d).\n",
 247                                    mb[0]);
 248                        }
 249                        /* Release mailbox registers. */
 250                        wrt_reg_word(&reg->semaphore, 0);
 251                        rd_reg_word(&reg->semaphore);
 252                } else {
 253                        qla2x00_process_response_queue(rsp);
 254
 255                        wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 256                        rd_reg_word(&reg->hccr);
 257                }
 258        }
 259        qla2x00_handle_mbx_completion(ha, status);
 260        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 261
 262        return (IRQ_HANDLED);
 263}
 264
 265bool
 266qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
 267{
 268        /* Check for PCI disconnection */
 269        if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
 270                if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
 271                    !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
 272                    !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
 273                        qla_schedule_eeh_work(vha);
 274                }
 275                return true;
 276        } else
 277                return false;
 278}
 279
 280bool
 281qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
 282{
 283        return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
 284}
 285
 286/**
 287 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 288 * @irq: interrupt number
 289 * @dev_id: SCSI driver HA context
 290 *
 291 * Called by system whenever the host adapter generates an interrupt.
 292 *
 293 * Returns handled flag.
 294 */
 295irqreturn_t
 296qla2300_intr_handler(int irq, void *dev_id)
 297{
 298        scsi_qla_host_t *vha;
 299        struct device_reg_2xxx __iomem *reg;
 300        int             status;
 301        unsigned long   iter;
 302        uint32_t        stat;
 303        uint16_t        hccr;
 304        uint16_t        mb[8];
 305        struct rsp_que *rsp;
 306        struct qla_hw_data *ha;
 307        unsigned long   flags;
 308
 309        rsp = (struct rsp_que *) dev_id;
 310        if (!rsp) {
 311                ql_log(ql_log_info, NULL, 0x5058,
 312                    "%s: NULL response queue pointer.\n", __func__);
 313                return (IRQ_NONE);
 314        }
 315
 316        ha = rsp->hw;
 317        reg = &ha->iobase->isp;
 318        status = 0;
 319
 320        spin_lock_irqsave(&ha->hardware_lock, flags);
 321        vha = pci_get_drvdata(ha->pdev);
 322        for (iter = 50; iter--; ) {
 323                stat = rd_reg_dword(&reg->u.isp2300.host_status);
 324                if (qla2x00_check_reg32_for_disconnect(vha, stat))
 325                        break;
 326                if (stat & HSR_RISC_PAUSED) {
 327                        if (unlikely(pci_channel_offline(ha->pdev)))
 328                                break;
 329
 330                        hccr = rd_reg_word(&reg->hccr);
 331
 332                        if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
 333                                ql_log(ql_log_warn, vha, 0x5026,
 334                                    "Parity error -- HCCR=%x, Dumping "
 335                                    "firmware.\n", hccr);
 336                        else
 337                                ql_log(ql_log_warn, vha, 0x5027,
 338                                    "RISC paused -- HCCR=%x, Dumping "
 339                                    "firmware.\n", hccr);
 340
 341                        /*
 342                         * Issue a "HARD" reset in order for the RISC
 343                         * interrupt bit to be cleared.  Schedule a big
 344                         * hammer to get out of the RISC PAUSED state.
 345                         */
 346                        wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 347                        rd_reg_word(&reg->hccr);
 348
 349                        ha->isp_ops->fw_dump(vha);
 350                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 351                        break;
 352                } else if ((stat & HSR_RISC_INT) == 0)
 353                        break;
 354
 355                switch (stat & 0xff) {
 356                case 0x1:
 357                case 0x2:
 358                case 0x10:
 359                case 0x11:
 360                        qla2x00_mbx_completion(vha, MSW(stat));
 361                        status |= MBX_INTERRUPT;
 362
 363                        /* Release mailbox registers. */
 364                        wrt_reg_word(&reg->semaphore, 0);
 365                        break;
 366                case 0x12:
 367                        mb[0] = MSW(stat);
 368                        mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 369                        mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 370                        mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 371                        qla2x00_async_event(vha, rsp, mb);
 372                        break;
 373                case 0x13:
 374                        qla2x00_process_response_queue(rsp);
 375                        break;
 376                case 0x15:
 377                        mb[0] = MBA_CMPLT_1_16BIT;
 378                        mb[1] = MSW(stat);
 379                        qla2x00_async_event(vha, rsp, mb);
 380                        break;
 381                case 0x16:
 382                        mb[0] = MBA_SCSI_COMPLETION;
 383                        mb[1] = MSW(stat);
 384                        mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 385                        qla2x00_async_event(vha, rsp, mb);
 386                        break;
 387                default:
 388                        ql_dbg(ql_dbg_async, vha, 0x5028,
 389                            "Unrecognized interrupt type (%d).\n", stat & 0xff);
 390                        break;
 391                }
 392                wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 393                rd_reg_word_relaxed(&reg->hccr);
 394        }
 395        qla2x00_handle_mbx_completion(ha, status);
 396        spin_unlock_irqrestore(&ha->hardware_lock, flags);
 397
 398        return (IRQ_HANDLED);
 399}
 400
 401/**
 402 * qla2x00_mbx_completion() - Process mailbox command completions.
 403 * @vha: SCSI driver HA context
 404 * @mb0: Mailbox0 register
 405 */
 406static void
 407qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 408{
 409        uint16_t        cnt;
 410        uint32_t        mboxes;
 411        __le16 __iomem *wptr;
 412        struct qla_hw_data *ha = vha->hw;
 413        struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 414
 415        /* Read all mbox registers? */
 416        WARN_ON_ONCE(ha->mbx_count > 32);
 417        mboxes = (1ULL << ha->mbx_count) - 1;
 418        if (!ha->mcp)
 419                ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 420        else
 421                mboxes = ha->mcp->in_mb;
 422
 423        /* Load return mailbox registers. */
 424        ha->flags.mbox_int = 1;
 425        ha->mailbox_out[0] = mb0;
 426        mboxes >>= 1;
 427        wptr = MAILBOX_REG(ha, reg, 1);
 428
 429        for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 430                if (IS_QLA2200(ha) && cnt == 8)
 431                        wptr = MAILBOX_REG(ha, reg, 8);
 432                if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 433                        ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 434                else if (mboxes & BIT_0)
 435                        ha->mailbox_out[cnt] = rd_reg_word(wptr);
 436
 437                wptr++;
 438                mboxes >>= 1;
 439        }
 440}
 441
 442static void
 443qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 444{
 445        static char *event[] =
 446                { "Complete", "Request Notification", "Time Extension" };
 447        int rval;
 448        struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 449        struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 450        __le16 __iomem *wptr;
 451        uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 452
 453        /* Seed data -- mailbox1 -> mailbox7. */
 454        if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 455                wptr = &reg24->mailbox1;
 456        else if (IS_QLA8044(vha->hw))
 457                wptr = &reg82->mailbox_out[1];
 458        else
 459                return;
 460
 461        for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 462                mb[cnt] = rd_reg_word(wptr);
 463
 464        ql_dbg(ql_dbg_async, vha, 0x5021,
 465            "Inter-Driver Communication %s -- "
 466            "%04x %04x %04x %04x %04x %04x %04x.\n",
 467            event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 468            mb[4], mb[5], mb[6]);
 469        switch (aen) {
 470        /* Handle IDC Error completion case. */
 471        case MBA_IDC_COMPLETE:
 472                if (mb[1] >> 15) {
 473                        vha->hw->flags.idc_compl_status = 1;
 474                        if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 475                                complete(&vha->hw->dcbx_comp);
 476                }
 477                break;
 478
 479        case MBA_IDC_NOTIFY:
 480                /* Acknowledgement needed? [Notify && non-zero timeout]. */
 481                timeout = (descr >> 8) & 0xf;
 482                ql_dbg(ql_dbg_async, vha, 0x5022,
 483                    "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 484                    vha->host_no, event[aen & 0xff], timeout);
 485
 486                if (!timeout)
 487                        return;
 488                rval = qla2x00_post_idc_ack_work(vha, mb);
 489                if (rval != QLA_SUCCESS)
 490                        ql_log(ql_log_warn, vha, 0x5023,
 491                            "IDC failed to post ACK.\n");
 492                break;
 493        case MBA_IDC_TIME_EXT:
 494                vha->hw->idc_extend_tmo = descr;
 495                ql_dbg(ql_dbg_async, vha, 0x5087,
 496                    "%lu Inter-Driver Communication %s -- "
 497                    "Extend timeout by=%d.\n",
 498                    vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 499                break;
 500        }
 501}
 502
 503#define LS_UNKNOWN      2
 504const char *
 505qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 506{
 507        static const char *const link_speeds[] = {
 508                "1", "2", "?", "4", "8", "16", "32", "10"
 509        };
 510#define QLA_LAST_SPEED (ARRAY_SIZE(link_speeds) - 1)
 511
 512        if (IS_QLA2100(ha) || IS_QLA2200(ha))
 513                return link_speeds[0];
 514        else if (speed == 0x13)
 515                return link_speeds[QLA_LAST_SPEED];
 516        else if (speed < QLA_LAST_SPEED)
 517                return link_speeds[speed];
 518        else
 519                return link_speeds[LS_UNKNOWN];
 520}
 521
 522static void
 523qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 524{
 525        struct qla_hw_data *ha = vha->hw;
 526
 527        /*
 528         * 8200 AEN Interpretation:
 529         * mb[0] = AEN code
 530         * mb[1] = AEN Reason code
 531         * mb[2] = LSW of Peg-Halt Status-1 Register
 532         * mb[6] = MSW of Peg-Halt Status-1 Register
 533         * mb[3] = LSW of Peg-Halt Status-2 register
 534         * mb[7] = MSW of Peg-Halt Status-2 register
 535         * mb[4] = IDC Device-State Register value
 536         * mb[5] = IDC Driver-Presence Register value
 537         */
 538        ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 539            "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 540            mb[0], mb[1], mb[2], mb[6]);
 541        ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 542            "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 543            "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 544
 545        if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 546                                IDC_HEARTBEAT_FAILURE)) {
 547                ha->flags.nic_core_hung = 1;
 548                ql_log(ql_log_warn, vha, 0x5060,
 549                    "83XX: F/W Error Reported: Check if reset required.\n");
 550
 551                if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 552                        uint32_t protocol_engine_id, fw_err_code, err_level;
 553
 554                        /*
 555                         * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 556                         *  - PEG-Halt Status-1 Register:
 557                         *      (LSW = mb[2], MSW = mb[6])
 558                         *      Bits 0-7   = protocol-engine ID
 559                         *      Bits 8-28  = f/w error code
 560                         *      Bits 29-31 = Error-level
 561                         *          Error-level 0x1 = Non-Fatal error
 562                         *          Error-level 0x2 = Recoverable Fatal error
 563                         *          Error-level 0x4 = UnRecoverable Fatal error
 564                         *  - PEG-Halt Status-2 Register:
 565                         *      (LSW = mb[3], MSW = mb[7])
 566                         */
 567                        protocol_engine_id = (mb[2] & 0xff);
 568                        fw_err_code = (((mb[2] & 0xff00) >> 8) |
 569                            ((mb[6] & 0x1fff) << 8));
 570                        err_level = ((mb[6] & 0xe000) >> 13);
 571                        ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 572                            "Register: protocol_engine_id=0x%x "
 573                            "fw_err_code=0x%x err_level=0x%x.\n",
 574                            protocol_engine_id, fw_err_code, err_level);
 575                        ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 576                            "Register: 0x%x%x.\n", mb[7], mb[3]);
 577                        if (err_level == ERR_LEVEL_NON_FATAL) {
 578                                ql_log(ql_log_warn, vha, 0x5063,
 579                                    "Not a fatal error, f/w has recovered itself.\n");
 580                        } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 581                                ql_log(ql_log_fatal, vha, 0x5064,
 582                                    "Recoverable Fatal error: Chip reset "
 583                                    "required.\n");
 584                                qla83xx_schedule_work(vha,
 585                                    QLA83XX_NIC_CORE_RESET);
 586                        } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 587                                ql_log(ql_log_fatal, vha, 0x5065,
 588                                    "Unrecoverable Fatal error: Set FAILED "
 589                                    "state, reboot required.\n");
 590                                qla83xx_schedule_work(vha,
 591                                    QLA83XX_NIC_CORE_UNRECOVERABLE);
 592                        }
 593                }
 594
 595                if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 596                        uint16_t peg_fw_state, nw_interface_link_up;
 597                        uint16_t nw_interface_signal_detect, sfp_status;
 598                        uint16_t htbt_counter, htbt_monitor_enable;
 599                        uint16_t sfp_additional_info, sfp_multirate;
 600                        uint16_t sfp_tx_fault, link_speed, dcbx_status;
 601
 602                        /*
 603                         * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 604                         *  - PEG-to-FC Status Register:
 605                         *      (LSW = mb[2], MSW = mb[6])
 606                         *      Bits 0-7   = Peg-Firmware state
 607                         *      Bit 8      = N/W Interface Link-up
 608                         *      Bit 9      = N/W Interface signal detected
 609                         *      Bits 10-11 = SFP Status
 610                         *        SFP Status 0x0 = SFP+ transceiver not expected
 611                         *        SFP Status 0x1 = SFP+ transceiver not present
 612                         *        SFP Status 0x2 = SFP+ transceiver invalid
 613                         *        SFP Status 0x3 = SFP+ transceiver present and
 614                         *        valid
 615                         *      Bits 12-14 = Heartbeat Counter
 616                         *      Bit 15     = Heartbeat Monitor Enable
 617                         *      Bits 16-17 = SFP Additional Info
 618                         *        SFP info 0x0 = Unregocnized transceiver for
 619                         *        Ethernet
 620                         *        SFP info 0x1 = SFP+ brand validation failed
 621                         *        SFP info 0x2 = SFP+ speed validation failed
 622                         *        SFP info 0x3 = SFP+ access error
 623                         *      Bit 18     = SFP Multirate
 624                         *      Bit 19     = SFP Tx Fault
 625                         *      Bits 20-22 = Link Speed
 626                         *      Bits 23-27 = Reserved
 627                         *      Bits 28-30 = DCBX Status
 628                         *        DCBX Status 0x0 = DCBX Disabled
 629                         *        DCBX Status 0x1 = DCBX Enabled
 630                         *        DCBX Status 0x2 = DCBX Exchange error
 631                         *      Bit 31     = Reserved
 632                         */
 633                        peg_fw_state = (mb[2] & 0x00ff);
 634                        nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 635                        nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 636                        sfp_status = ((mb[2] & 0x0c00) >> 10);
 637                        htbt_counter = ((mb[2] & 0x7000) >> 12);
 638                        htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 639                        sfp_additional_info = (mb[6] & 0x0003);
 640                        sfp_multirate = ((mb[6] & 0x0004) >> 2);
 641                        sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 642                        link_speed = ((mb[6] & 0x0070) >> 4);
 643                        dcbx_status = ((mb[6] & 0x7000) >> 12);
 644
 645                        ql_log(ql_log_warn, vha, 0x5066,
 646                            "Peg-to-Fc Status Register:\n"
 647                            "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 648                            "nw_interface_signal_detect=0x%x"
 649                            "\nsfp_statis=0x%x.\n ", peg_fw_state,
 650                            nw_interface_link_up, nw_interface_signal_detect,
 651                            sfp_status);
 652                        ql_log(ql_log_warn, vha, 0x5067,
 653                            "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 654                            "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
 655                            htbt_counter, htbt_monitor_enable,
 656                            sfp_additional_info, sfp_multirate);
 657                        ql_log(ql_log_warn, vha, 0x5068,
 658                            "sfp_tx_fault=0x%x, link_state=0x%x, "
 659                            "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 660                            dcbx_status);
 661
 662                        qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 663                }
 664
 665                if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 666                        ql_log(ql_log_warn, vha, 0x5069,
 667                            "Heartbeat Failure encountered, chip reset "
 668                            "required.\n");
 669
 670                        qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 671                }
 672        }
 673
 674        if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 675                ql_log(ql_log_info, vha, 0x506a,
 676                    "IDC Device-State changed = 0x%x.\n", mb[4]);
 677                if (ha->flags.nic_core_reset_owner)
 678                        return;
 679                qla83xx_schedule_work(vha, MBA_IDC_AEN);
 680        }
 681}
 682
 683int
 684qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 685{
 686        struct qla_hw_data *ha = vha->hw;
 687        scsi_qla_host_t *vp;
 688        uint32_t vp_did;
 689        unsigned long flags;
 690        int ret = 0;
 691
 692        if (!ha->num_vhosts)
 693                return ret;
 694
 695        spin_lock_irqsave(&ha->vport_slock, flags);
 696        list_for_each_entry(vp, &ha->vp_list, list) {
 697                vp_did = vp->d_id.b24;
 698                if (vp_did == rscn_entry) {
 699                        ret = 1;
 700                        break;
 701                }
 702        }
 703        spin_unlock_irqrestore(&ha->vport_slock, flags);
 704
 705        return ret;
 706}
 707
 708fc_port_t *
 709qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
 710{
 711        fc_port_t *f, *tf;
 712
 713        f = tf = NULL;
 714        list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
 715                if (f->loop_id == loop_id)
 716                        return f;
 717        return NULL;
 718}
 719
 720fc_port_t *
 721qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
 722{
 723        fc_port_t *f, *tf;
 724
 725        f = tf = NULL;
 726        list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 727                if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
 728                        if (incl_deleted)
 729                                return f;
 730                        else if (f->deleted == 0)
 731                                return f;
 732                }
 733        }
 734        return NULL;
 735}
 736
 737fc_port_t *
 738qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
 739        u8 incl_deleted)
 740{
 741        fc_port_t *f, *tf;
 742
 743        f = tf = NULL;
 744        list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 745                if (f->d_id.b24 == id->b24) {
 746                        if (incl_deleted)
 747                                return f;
 748                        else if (f->deleted == 0)
 749                                return f;
 750                }
 751        }
 752        return NULL;
 753}
 754
 755/* Shall be called only on supported adapters. */
 756static void
 757qla27xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 758{
 759        struct qla_hw_data *ha = vha->hw;
 760        bool reset_isp_needed = false;
 761
 762        ql_log(ql_log_warn, vha, 0x02f0,
 763               "MPI Heartbeat stop. MPI reset is%s needed. "
 764               "MB0[%xh] MB1[%xh] MB2[%xh] MB3[%xh]\n",
 765               mb[1] & BIT_8 ? "" : " not",
 766               mb[0], mb[1], mb[2], mb[3]);
 767
 768        if ((mb[1] & BIT_8) == 0)
 769                return;
 770
 771        ql_log(ql_log_warn, vha, 0x02f1,
 772               "MPI Heartbeat stop. FW dump needed\n");
 773
 774        if (ql2xfulldump_on_mpifail) {
 775                ha->isp_ops->fw_dump(vha);
 776                reset_isp_needed = true;
 777        }
 778
 779        ha->isp_ops->mpi_fw_dump(vha, 1);
 780
 781        if (reset_isp_needed) {
 782                vha->hw->flags.fw_init_done = 0;
 783                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 784                qla2xxx_wake_dpc(vha);
 785        }
 786}
 787
 788static struct purex_item *
 789qla24xx_alloc_purex_item(scsi_qla_host_t *vha, uint16_t size)
 790{
 791        struct purex_item *item = NULL;
 792        uint8_t item_hdr_size = sizeof(*item);
 793
 794        if (size > QLA_DEFAULT_PAYLOAD_SIZE) {
 795                item = kzalloc(item_hdr_size +
 796                    (size - QLA_DEFAULT_PAYLOAD_SIZE), GFP_ATOMIC);
 797        } else {
 798                if (atomic_inc_return(&vha->default_item.in_use) == 1) {
 799                        item = &vha->default_item;
 800                        goto initialize_purex_header;
 801                } else {
 802                        item = kzalloc(item_hdr_size, GFP_ATOMIC);
 803                }
 804        }
 805        if (!item) {
 806                ql_log(ql_log_warn, vha, 0x5092,
 807                       ">> Failed allocate purex list item.\n");
 808
 809                return NULL;
 810        }
 811
 812initialize_purex_header:
 813        item->vha = vha;
 814        item->size = size;
 815        return item;
 816}
 817
 818static void
 819qla24xx_queue_purex_item(scsi_qla_host_t *vha, struct purex_item *pkt,
 820                         void (*process_item)(struct scsi_qla_host *vha,
 821                                              struct purex_item *pkt))
 822{
 823        struct purex_list *list = &vha->purex_list;
 824        ulong flags;
 825
 826        pkt->process_item = process_item;
 827
 828        spin_lock_irqsave(&list->lock, flags);
 829        list_add_tail(&pkt->list, &list->head);
 830        spin_unlock_irqrestore(&list->lock, flags);
 831
 832        set_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
 833}
 834
 835/**
 836 * qla24xx_copy_std_pkt() - Copy over purex ELS which is
 837 * contained in a single IOCB.
 838 * purex packet.
 839 * @vha: SCSI driver HA context
 840 * @pkt: ELS packet
 841 */
 842static struct purex_item
 843*qla24xx_copy_std_pkt(struct scsi_qla_host *vha, void *pkt)
 844{
 845        struct purex_item *item;
 846
 847        item = qla24xx_alloc_purex_item(vha,
 848                                        QLA_DEFAULT_PAYLOAD_SIZE);
 849        if (!item)
 850                return item;
 851
 852        memcpy(&item->iocb, pkt, sizeof(item->iocb));
 853        return item;
 854}
 855
 856/**
 857 * qla27xx_copy_fpin_pkt() - Copy over fpin packets that can
 858 * span over multiple IOCBs.
 859 * @vha: SCSI driver HA context
 860 * @pkt: ELS packet
 861 * @rsp: Response queue
 862 */
 863static struct purex_item *
 864qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha, void **pkt,
 865                      struct rsp_que **rsp)
 866{
 867        struct purex_entry_24xx *purex = *pkt;
 868        struct rsp_que *rsp_q = *rsp;
 869        sts_cont_entry_t *new_pkt;
 870        uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
 871        uint16_t buffer_copy_offset = 0;
 872        uint16_t entry_count, entry_count_remaining;
 873        struct purex_item *item;
 874        void *fpin_pkt = NULL;
 875
 876        total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
 877            - PURX_ELS_HEADER_SIZE;
 878        pending_bytes = total_bytes;
 879        entry_count = entry_count_remaining = purex->entry_count;
 880        no_bytes = (pending_bytes > sizeof(purex->els_frame_payload))  ?
 881                   sizeof(purex->els_frame_payload) : pending_bytes;
 882        ql_log(ql_log_info, vha, 0x509a,
 883               "FPIN ELS, frame_size 0x%x, entry count %d\n",
 884               total_bytes, entry_count);
 885
 886        item = qla24xx_alloc_purex_item(vha, total_bytes);
 887        if (!item)
 888                return item;
 889
 890        fpin_pkt = &item->iocb;
 891
 892        memcpy(fpin_pkt, &purex->els_frame_payload[0], no_bytes);
 893        buffer_copy_offset += no_bytes;
 894        pending_bytes -= no_bytes;
 895        --entry_count_remaining;
 896
 897        ((response_t *)purex)->signature = RESPONSE_PROCESSED;
 898        wmb();
 899
 900        do {
 901                while ((total_bytes > 0) && (entry_count_remaining > 0)) {
 902                        if (rsp_q->ring_ptr->signature == RESPONSE_PROCESSED) {
 903                                ql_dbg(ql_dbg_async, vha, 0x5084,
 904                                       "Ran out of IOCBs, partial data 0x%x\n",
 905                                       buffer_copy_offset);
 906                                cpu_relax();
 907                                continue;
 908                        }
 909
 910                        new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
 911                        *pkt = new_pkt;
 912
 913                        if (new_pkt->entry_type != STATUS_CONT_TYPE) {
 914                                ql_log(ql_log_warn, vha, 0x507a,
 915                                       "Unexpected IOCB type, partial data 0x%x\n",
 916                                       buffer_copy_offset);
 917                                break;
 918                        }
 919
 920                        rsp_q->ring_index++;
 921                        if (rsp_q->ring_index == rsp_q->length) {
 922                                rsp_q->ring_index = 0;
 923                                rsp_q->ring_ptr = rsp_q->ring;
 924                        } else {
 925                                rsp_q->ring_ptr++;
 926                        }
 927                        no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
 928                            sizeof(new_pkt->data) : pending_bytes;
 929                        if ((buffer_copy_offset + no_bytes) <= total_bytes) {
 930                                memcpy(((uint8_t *)fpin_pkt +
 931                                    buffer_copy_offset), new_pkt->data,
 932                                    no_bytes);
 933                                buffer_copy_offset += no_bytes;
 934                                pending_bytes -= no_bytes;
 935                                --entry_count_remaining;
 936                        } else {
 937                                ql_log(ql_log_warn, vha, 0x5044,
 938                                       "Attempt to copy more that we got, optimizing..%x\n",
 939                                       buffer_copy_offset);
 940                                memcpy(((uint8_t *)fpin_pkt +
 941                                    buffer_copy_offset), new_pkt->data,
 942                                    total_bytes - buffer_copy_offset);
 943                        }
 944
 945                        ((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
 946                        wmb();
 947                }
 948
 949                if (pending_bytes != 0 || entry_count_remaining != 0) {
 950                        ql_log(ql_log_fatal, vha, 0x508b,
 951                               "Dropping partial FPIN, underrun bytes = 0x%x, entry cnts 0x%x\n",
 952                               total_bytes, entry_count_remaining);
 953                        qla24xx_free_purex_item(item);
 954                        return NULL;
 955                }
 956        } while (entry_count_remaining > 0);
 957        host_to_fcp_swap((uint8_t *)&item->iocb, total_bytes);
 958        return item;
 959}
 960
 961/**
 962 * qla2x00_async_event() - Process aynchronous events.
 963 * @vha: SCSI driver HA context
 964 * @rsp: response queue
 965 * @mb: Mailbox registers (0 - 3)
 966 */
 967void
 968qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
 969{
 970        uint16_t        handle_cnt;
 971        uint16_t        cnt, mbx;
 972        uint32_t        handles[5];
 973        struct qla_hw_data *ha = vha->hw;
 974        struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 975        struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
 976        struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 977        uint32_t        rscn_entry, host_pid;
 978        unsigned long   flags;
 979        fc_port_t       *fcport = NULL;
 980
 981        if (!vha->hw->flags.fw_started)
 982                return;
 983
 984        /* Setup to process RIO completion. */
 985        handle_cnt = 0;
 986        if (IS_CNA_CAPABLE(ha))
 987                goto skip_rio;
 988        switch (mb[0]) {
 989        case MBA_SCSI_COMPLETION:
 990                handles[0] = make_handle(mb[2], mb[1]);
 991                handle_cnt = 1;
 992                break;
 993        case MBA_CMPLT_1_16BIT:
 994                handles[0] = mb[1];
 995                handle_cnt = 1;
 996                mb[0] = MBA_SCSI_COMPLETION;
 997                break;
 998        case MBA_CMPLT_2_16BIT:
 999                handles[0] = mb[1];
1000                handles[1] = mb[2];
1001                handle_cnt = 2;
1002                mb[0] = MBA_SCSI_COMPLETION;
1003                break;
1004        case MBA_CMPLT_3_16BIT:
1005                handles[0] = mb[1];
1006                handles[1] = mb[2];
1007                handles[2] = mb[3];
1008                handle_cnt = 3;
1009                mb[0] = MBA_SCSI_COMPLETION;
1010                break;
1011        case MBA_CMPLT_4_16BIT:
1012                handles[0] = mb[1];
1013                handles[1] = mb[2];
1014                handles[2] = mb[3];
1015                handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1016                handle_cnt = 4;
1017                mb[0] = MBA_SCSI_COMPLETION;
1018                break;
1019        case MBA_CMPLT_5_16BIT:
1020                handles[0] = mb[1];
1021                handles[1] = mb[2];
1022                handles[2] = mb[3];
1023                handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1024                handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
1025                handle_cnt = 5;
1026                mb[0] = MBA_SCSI_COMPLETION;
1027                break;
1028        case MBA_CMPLT_2_32BIT:
1029                handles[0] = make_handle(mb[2], mb[1]);
1030                handles[1] = make_handle(RD_MAILBOX_REG(ha, reg, 7),
1031                                         RD_MAILBOX_REG(ha, reg, 6));
1032                handle_cnt = 2;
1033                mb[0] = MBA_SCSI_COMPLETION;
1034                break;
1035        default:
1036                break;
1037        }
1038skip_rio:
1039        switch (mb[0]) {
1040        case MBA_SCSI_COMPLETION:       /* Fast Post */
1041                if (!vha->flags.online)
1042                        break;
1043
1044                for (cnt = 0; cnt < handle_cnt; cnt++)
1045                        qla2x00_process_completed_request(vha, rsp->req,
1046                                handles[cnt]);
1047                break;
1048
1049        case MBA_RESET:                 /* Reset */
1050                ql_dbg(ql_dbg_async, vha, 0x5002,
1051                    "Asynchronous RESET.\n");
1052
1053                set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1054                break;
1055
1056        case MBA_SYSTEM_ERR:            /* System Error */
1057                mbx = 0;
1058
1059                vha->hw_err_cnt++;
1060
1061                if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
1062                    IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1063                        u16 m[4];
1064
1065                        m[0] = rd_reg_word(&reg24->mailbox4);
1066                        m[1] = rd_reg_word(&reg24->mailbox5);
1067                        m[2] = rd_reg_word(&reg24->mailbox6);
1068                        mbx = m[3] = rd_reg_word(&reg24->mailbox7);
1069
1070                        ql_log(ql_log_warn, vha, 0x5003,
1071                            "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh mbx4=%xh mbx5=%xh mbx6=%xh mbx7=%xh.\n",
1072                            mb[1], mb[2], mb[3], m[0], m[1], m[2], m[3]);
1073                } else
1074                        ql_log(ql_log_warn, vha, 0x5003,
1075                            "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n ",
1076                            mb[1], mb[2], mb[3]);
1077
1078                if ((IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
1079                    rd_reg_word(&reg24->mailbox7) & BIT_8)
1080                        ha->isp_ops->mpi_fw_dump(vha, 1);
1081                ha->isp_ops->fw_dump(vha);
1082                ha->flags.fw_init_done = 0;
1083                QLA_FW_STOPPED(ha);
1084
1085                if (IS_FWI2_CAPABLE(ha)) {
1086                        if (mb[1] == 0 && mb[2] == 0) {
1087                                ql_log(ql_log_fatal, vha, 0x5004,
1088                                    "Unrecoverable Hardware Error: adapter "
1089                                    "marked OFFLINE!\n");
1090                                vha->flags.online = 0;
1091                                vha->device_flags |= DFLG_DEV_FAILED;
1092                        } else {
1093                                /* Check to see if MPI timeout occurred */
1094                                if ((mbx & MBX_3) && (ha->port_no == 0))
1095                                        set_bit(MPI_RESET_NEEDED,
1096                                            &vha->dpc_flags);
1097
1098                                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1099                        }
1100                } else if (mb[1] == 0) {
1101                        ql_log(ql_log_fatal, vha, 0x5005,
1102                            "Unrecoverable Hardware Error: adapter marked "
1103                            "OFFLINE!\n");
1104                        vha->flags.online = 0;
1105                        vha->device_flags |= DFLG_DEV_FAILED;
1106                } else
1107                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1108                break;
1109
1110        case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
1111                ql_log(ql_log_warn, vha, 0x5006,
1112                    "ISP Request Transfer Error (%x).\n",  mb[1]);
1113
1114                vha->hw_err_cnt++;
1115
1116                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1117                break;
1118
1119        case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
1120                ql_log(ql_log_warn, vha, 0x5007,
1121                    "ISP Response Transfer Error (%x).\n", mb[1]);
1122
1123                vha->hw_err_cnt++;
1124
1125                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1126                break;
1127
1128        case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
1129                ql_dbg(ql_dbg_async, vha, 0x5008,
1130                    "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
1131                break;
1132
1133        case MBA_LOOP_INIT_ERR:
1134                ql_log(ql_log_warn, vha, 0x5090,
1135                    "LOOP INIT ERROR (%x).\n", mb[1]);
1136                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1137                break;
1138
1139        case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
1140                ha->flags.lip_ae = 1;
1141
1142                ql_dbg(ql_dbg_async, vha, 0x5009,
1143                    "LIP occurred (%x).\n", mb[1]);
1144
1145                if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1146                        atomic_set(&vha->loop_state, LOOP_DOWN);
1147                        atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1148                        qla2x00_mark_all_devices_lost(vha);
1149                }
1150
1151                if (vha->vp_idx) {
1152                        atomic_set(&vha->vp_state, VP_FAILED);
1153                        fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1154                }
1155
1156                set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1157                set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1158
1159                vha->flags.management_server_logged_in = 0;
1160                qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
1161                break;
1162
1163        case MBA_LOOP_UP:               /* Loop Up Event */
1164                if (IS_QLA2100(ha) || IS_QLA2200(ha))
1165                        ha->link_data_rate = PORT_SPEED_1GB;
1166                else
1167                        ha->link_data_rate = mb[1];
1168
1169                ql_log(ql_log_info, vha, 0x500a,
1170                    "LOOP UP detected (%s Gbps).\n",
1171                    qla2x00_get_link_speed_str(ha, ha->link_data_rate));
1172
1173                if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1174                        if (mb[2] & BIT_0)
1175                                ql_log(ql_log_info, vha, 0x11a0,
1176                                    "FEC=enabled (link up).\n");
1177                }
1178
1179                vha->flags.management_server_logged_in = 0;
1180                qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
1181
1182                if (vha->link_down_time < vha->hw->port_down_retry_count) {
1183                        vha->short_link_down_cnt++;
1184                        vha->link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
1185                }
1186
1187                break;
1188
1189        case MBA_LOOP_DOWN:             /* Loop Down Event */
1190                SAVE_TOPO(ha);
1191                ha->flags.lip_ae = 0;
1192                ha->current_topology = 0;
1193                vha->link_down_time = 0;
1194
1195                mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
1196                        ? rd_reg_word(&reg24->mailbox4) : 0;
1197                mbx = (IS_P3P_TYPE(ha)) ? rd_reg_word(&reg82->mailbox_out[4])
1198                        : mbx;
1199                ql_log(ql_log_info, vha, 0x500b,
1200                    "LOOP DOWN detected (%x %x %x %x).\n",
1201                    mb[1], mb[2], mb[3], mbx);
1202
1203                if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1204                        atomic_set(&vha->loop_state, LOOP_DOWN);
1205                        atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1206                        /*
1207                         * In case of loop down, restore WWPN from
1208                         * NVRAM in case of FA-WWPN capable ISP
1209                         * Restore for Physical Port only
1210                         */
1211                        if (!vha->vp_idx) {
1212                                if (ha->flags.fawwpn_enabled &&
1213                                    (ha->current_topology == ISP_CFG_F)) {
1214                                        void *wwpn = ha->init_cb->port_name;
1215
1216                                        memcpy(vha->port_name, wwpn, WWN_SIZE);
1217                                        fc_host_port_name(vha->host) =
1218                                            wwn_to_u64(vha->port_name);
1219                                        ql_dbg(ql_dbg_init + ql_dbg_verbose,
1220                                            vha, 0x00d8, "LOOP DOWN detected,"
1221                                            "restore WWPN %016llx\n",
1222                                            wwn_to_u64(vha->port_name));
1223                                }
1224
1225                                clear_bit(VP_CONFIG_OK, &vha->vp_flags);
1226                        }
1227
1228                        vha->device_flags |= DFLG_NO_CABLE;
1229                        qla2x00_mark_all_devices_lost(vha);
1230                }
1231
1232                if (vha->vp_idx) {
1233                        atomic_set(&vha->vp_state, VP_FAILED);
1234                        fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1235                }
1236
1237                vha->flags.management_server_logged_in = 0;
1238                ha->link_data_rate = PORT_SPEED_UNKNOWN;
1239                qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
1240                break;
1241
1242        case MBA_LIP_RESET:             /* LIP reset occurred */
1243                ql_dbg(ql_dbg_async, vha, 0x500c,
1244                    "LIP reset occurred (%x).\n", mb[1]);
1245
1246                if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1247                        atomic_set(&vha->loop_state, LOOP_DOWN);
1248                        atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1249                        qla2x00_mark_all_devices_lost(vha);
1250                }
1251
1252                if (vha->vp_idx) {
1253                        atomic_set(&vha->vp_state, VP_FAILED);
1254                        fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1255                }
1256
1257                set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1258
1259                ha->operating_mode = LOOP;
1260                vha->flags.management_server_logged_in = 0;
1261                qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
1262                break;
1263
1264        /* case MBA_DCBX_COMPLETE: */
1265        case MBA_POINT_TO_POINT:        /* Point-to-Point */
1266                ha->flags.lip_ae = 0;
1267
1268                if (IS_QLA2100(ha))
1269                        break;
1270
1271                if (IS_CNA_CAPABLE(ha)) {
1272                        ql_dbg(ql_dbg_async, vha, 0x500d,
1273                            "DCBX Completed -- %04x %04x %04x.\n",
1274                            mb[1], mb[2], mb[3]);
1275                        if (ha->notify_dcbx_comp && !vha->vp_idx)
1276                                complete(&ha->dcbx_comp);
1277
1278                } else
1279                        ql_dbg(ql_dbg_async, vha, 0x500e,
1280                            "Asynchronous P2P MODE received.\n");
1281
1282                /*
1283                 * Until there's a transition from loop down to loop up, treat
1284                 * this as loop down only.
1285                 */
1286                if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1287                        atomic_set(&vha->loop_state, LOOP_DOWN);
1288                        if (!atomic_read(&vha->loop_down_timer))
1289                                atomic_set(&vha->loop_down_timer,
1290                                    LOOP_DOWN_TIME);
1291                        if (!N2N_TOPO(ha))
1292                                qla2x00_mark_all_devices_lost(vha);
1293                }
1294
1295                if (vha->vp_idx) {
1296                        atomic_set(&vha->vp_state, VP_FAILED);
1297                        fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1298                }
1299
1300                if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
1301                        set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1302
1303                set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1304                set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1305
1306                vha->flags.management_server_logged_in = 0;
1307                break;
1308
1309        case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
1310                if (IS_QLA2100(ha))
1311                        break;
1312
1313                ql_dbg(ql_dbg_async, vha, 0x500f,
1314                    "Configuration change detected: value=%x.\n", mb[1]);
1315
1316                if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1317                        atomic_set(&vha->loop_state, LOOP_DOWN);
1318                        if (!atomic_read(&vha->loop_down_timer))
1319                                atomic_set(&vha->loop_down_timer,
1320                                    LOOP_DOWN_TIME);
1321                        qla2x00_mark_all_devices_lost(vha);
1322                }
1323
1324                if (vha->vp_idx) {
1325                        atomic_set(&vha->vp_state, VP_FAILED);
1326                        fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1327                }
1328
1329                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1330                set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1331                break;
1332
1333        case MBA_PORT_UPDATE:           /* Port database update */
1334                /*
1335                 * Handle only global and vn-port update events
1336                 *
1337                 * Relevant inputs:
1338                 * mb[1] = N_Port handle of changed port
1339                 * OR 0xffff for global event
1340                 * mb[2] = New login state
1341                 * 7 = Port logged out
1342                 * mb[3] = LSB is vp_idx, 0xff = all vps
1343                 *
1344                 * Skip processing if:
1345                 *       Event is global, vp_idx is NOT all vps,
1346                 *           vp_idx does not match
1347                 *       Event is not global, vp_idx does not match
1348                 */
1349                if (IS_QLA2XXX_MIDTYPE(ha) &&
1350                    ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
1351                        (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
1352                        break;
1353
1354                if (mb[2] == 0x7) {
1355                        ql_dbg(ql_dbg_async, vha, 0x5010,
1356                            "Port %s %04x %04x %04x.\n",
1357                            mb[1] == 0xffff ? "unavailable" : "logout",
1358                            mb[1], mb[2], mb[3]);
1359
1360                        if (mb[1] == 0xffff)
1361                                goto global_port_update;
1362
1363                        if (mb[1] == NPH_SNS_LID(ha)) {
1364                                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1365                                set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1366                                break;
1367                        }
1368
1369                        /* use handle_cnt for loop id/nport handle */
1370                        if (IS_FWI2_CAPABLE(ha))
1371                                handle_cnt = NPH_SNS;
1372                        else
1373                                handle_cnt = SIMPLE_NAME_SERVER;
1374                        if (mb[1] == handle_cnt) {
1375                                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1376                                set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1377                                break;
1378                        }
1379
1380                        /* Port logout */
1381                        fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1382                        if (!fcport)
1383                                break;
1384                        if (atomic_read(&fcport->state) != FCS_ONLINE)
1385                                break;
1386                        ql_dbg(ql_dbg_async, vha, 0x508a,
1387                            "Marking port lost loopid=%04x portid=%06x.\n",
1388                            fcport->loop_id, fcport->d_id.b24);
1389                        if (qla_ini_mode_enabled(vha)) {
1390                                fcport->logout_on_delete = 0;
1391                                qlt_schedule_sess_for_deletion(fcport);
1392                        }
1393                        break;
1394
1395global_port_update:
1396                        if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1397                                atomic_set(&vha->loop_state, LOOP_DOWN);
1398                                atomic_set(&vha->loop_down_timer,
1399                                    LOOP_DOWN_TIME);
1400                                vha->device_flags |= DFLG_NO_CABLE;
1401                                qla2x00_mark_all_devices_lost(vha);
1402                        }
1403
1404                        if (vha->vp_idx) {
1405                                atomic_set(&vha->vp_state, VP_FAILED);
1406                                fc_vport_set_state(vha->fc_vport,
1407                                    FC_VPORT_FAILED);
1408                                qla2x00_mark_all_devices_lost(vha);
1409                        }
1410
1411                        vha->flags.management_server_logged_in = 0;
1412                        ha->link_data_rate = PORT_SPEED_UNKNOWN;
1413                        break;
1414                }
1415
1416                /*
1417                 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1418                 * event etc. earlier indicating loop is down) then process
1419                 * it.  Otherwise ignore it and Wait for RSCN to come in.
1420                 */
1421                atomic_set(&vha->loop_down_timer, 0);
1422                if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1423                        !ha->flags.n2n_ae  &&
1424                    atomic_read(&vha->loop_state) != LOOP_DEAD) {
1425                        ql_dbg(ql_dbg_async, vha, 0x5011,
1426                            "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1427                            mb[1], mb[2], mb[3]);
1428                        break;
1429                }
1430
1431                ql_dbg(ql_dbg_async, vha, 0x5012,
1432                    "Port database changed %04x %04x %04x.\n",
1433                    mb[1], mb[2], mb[3]);
1434
1435                /*
1436                 * Mark all devices as missing so we will login again.
1437                 */
1438                atomic_set(&vha->loop_state, LOOP_UP);
1439                vha->scan.scan_retry = 0;
1440
1441                set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1442                set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1443                set_bit(VP_CONFIG_OK, &vha->vp_flags);
1444                break;
1445
1446        case MBA_RSCN_UPDATE:           /* State Change Registration */
1447                /* Check if the Vport has issued a SCR */
1448                if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1449                        break;
1450                /* Only handle SCNs for our Vport index. */
1451                if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1452                        break;
1453
1454                ql_log(ql_log_warn, vha, 0x5013,
1455                       "RSCN database changed -- %04x %04x %04x.\n",
1456                       mb[1], mb[2], mb[3]);
1457
1458                rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1459                host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1460                                | vha->d_id.b.al_pa;
1461                if (rscn_entry == host_pid) {
1462                        ql_dbg(ql_dbg_async, vha, 0x5014,
1463                            "Ignoring RSCN update to local host "
1464                            "port ID (%06x).\n", host_pid);
1465                        break;
1466                }
1467
1468                /* Ignore reserved bits from RSCN-payload. */
1469                rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1470
1471                /* Skip RSCNs for virtual ports on the same physical port */
1472                if (qla2x00_is_a_vp_did(vha, rscn_entry))
1473                        break;
1474
1475                atomic_set(&vha->loop_down_timer, 0);
1476                vha->flags.management_server_logged_in = 0;
1477                {
1478                        struct event_arg ea;
1479
1480                        memset(&ea, 0, sizeof(ea));
1481                        ea.id.b24 = rscn_entry;
1482                        ea.id.b.rsvd_1 = rscn_entry >> 24;
1483                        qla2x00_handle_rscn(vha, &ea);
1484                        qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1485                }
1486                break;
1487        case MBA_CONGN_NOTI_RECV:
1488                if (!ha->flags.scm_enabled ||
1489                    mb[1] != QLA_CON_PRIMITIVE_RECEIVED)
1490                        break;
1491
1492                if (mb[2] == QLA_CONGESTION_ARB_WARNING) {
1493                        ql_dbg(ql_dbg_async, vha, 0x509b,
1494                               "Congestion Warning %04x %04x.\n", mb[1], mb[2]);
1495                } else if (mb[2] == QLA_CONGESTION_ARB_ALARM) {
1496                        ql_log(ql_log_warn, vha, 0x509b,
1497                               "Congestion Alarm %04x %04x.\n", mb[1], mb[2]);
1498                }
1499                break;
1500        /* case MBA_RIO_RESPONSE: */
1501        case MBA_ZIO_RESPONSE:
1502                ql_dbg(ql_dbg_async, vha, 0x5015,
1503                    "[R|Z]IO update completion.\n");
1504
1505                if (IS_FWI2_CAPABLE(ha))
1506                        qla24xx_process_response_queue(vha, rsp);
1507                else
1508                        qla2x00_process_response_queue(rsp);
1509                break;
1510
1511        case MBA_DISCARD_RND_FRAME:
1512                ql_dbg(ql_dbg_async, vha, 0x5016,
1513                    "Discard RND Frame -- %04x %04x %04x.\n",
1514                    mb[1], mb[2], mb[3]);
1515                vha->interface_err_cnt++;
1516                break;
1517
1518        case MBA_TRACE_NOTIFICATION:
1519                ql_dbg(ql_dbg_async, vha, 0x5017,
1520                    "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1521                break;
1522
1523        case MBA_ISP84XX_ALERT:
1524                ql_dbg(ql_dbg_async, vha, 0x5018,
1525                    "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1526                    mb[1], mb[2], mb[3]);
1527
1528                spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1529                switch (mb[1]) {
1530                case A84_PANIC_RECOVERY:
1531                        ql_log(ql_log_info, vha, 0x5019,
1532                            "Alert 84XX: panic recovery %04x %04x.\n",
1533                            mb[2], mb[3]);
1534                        break;
1535                case A84_OP_LOGIN_COMPLETE:
1536                        ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1537                        ql_log(ql_log_info, vha, 0x501a,
1538                            "Alert 84XX: firmware version %x.\n",
1539                            ha->cs84xx->op_fw_version);
1540                        break;
1541                case A84_DIAG_LOGIN_COMPLETE:
1542                        ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1543                        ql_log(ql_log_info, vha, 0x501b,
1544                            "Alert 84XX: diagnostic firmware version %x.\n",
1545                            ha->cs84xx->diag_fw_version);
1546                        break;
1547                case A84_GOLD_LOGIN_COMPLETE:
1548                        ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1549                        ha->cs84xx->fw_update = 1;
1550                        ql_log(ql_log_info, vha, 0x501c,
1551                            "Alert 84XX: gold firmware version %x.\n",
1552                            ha->cs84xx->gold_fw_version);
1553                        break;
1554                default:
1555                        ql_log(ql_log_warn, vha, 0x501d,
1556                            "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1557                            mb[1], mb[2], mb[3]);
1558                }
1559                spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1560                break;
1561        case MBA_DCBX_START:
1562                ql_dbg(ql_dbg_async, vha, 0x501e,
1563                    "DCBX Started -- %04x %04x %04x.\n",
1564                    mb[1], mb[2], mb[3]);
1565                break;
1566        case MBA_DCBX_PARAM_UPDATE:
1567                ql_dbg(ql_dbg_async, vha, 0x501f,
1568                    "DCBX Parameters Updated -- %04x %04x %04x.\n",
1569                    mb[1], mb[2], mb[3]);
1570                break;
1571        case MBA_FCF_CONF_ERR:
1572                ql_dbg(ql_dbg_async, vha, 0x5020,
1573                    "FCF Configuration Error -- %04x %04x %04x.\n",
1574                    mb[1], mb[2], mb[3]);
1575                break;
1576        case MBA_IDC_NOTIFY:
1577                if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1578                        mb[4] = rd_reg_word(&reg24->mailbox4);
1579                        if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1580                            (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1581                            (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1582                                set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1583                                /*
1584                                 * Extend loop down timer since port is active.
1585                                 */
1586                                if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1587                                        atomic_set(&vha->loop_down_timer,
1588                                            LOOP_DOWN_TIME);
1589                                qla2xxx_wake_dpc(vha);
1590                        }
1591                }
1592                fallthrough;
1593        case MBA_IDC_COMPLETE:
1594                if (ha->notify_lb_portup_comp && !vha->vp_idx)
1595                        complete(&ha->lb_portup_comp);
1596                fallthrough;
1597        case MBA_IDC_TIME_EXT:
1598                if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1599                    IS_QLA8044(ha))
1600                        qla81xx_idc_event(vha, mb[0], mb[1]);
1601                break;
1602
1603        case MBA_IDC_AEN:
1604                if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1605                        vha->hw_err_cnt++;
1606                        qla27xx_handle_8200_aen(vha, mb);
1607                } else if (IS_QLA83XX(ha)) {
1608                        mb[4] = rd_reg_word(&reg24->mailbox4);
1609                        mb[5] = rd_reg_word(&reg24->mailbox5);
1610                        mb[6] = rd_reg_word(&reg24->mailbox6);
1611                        mb[7] = rd_reg_word(&reg24->mailbox7);
1612                        qla83xx_handle_8200_aen(vha, mb);
1613                } else {
1614                        ql_dbg(ql_dbg_async, vha, 0x5052,
1615                            "skip Heartbeat processing mb0-3=[0x%04x] [0x%04x] [0x%04x] [0x%04x]\n",
1616                            mb[0], mb[1], mb[2], mb[3]);
1617                }
1618                break;
1619
1620        case MBA_DPORT_DIAGNOSTICS:
1621                ql_dbg(ql_dbg_async, vha, 0x5052,
1622                    "D-Port Diagnostics: %04x %04x %04x %04x\n",
1623                    mb[0], mb[1], mb[2], mb[3]);
1624                memcpy(vha->dport_data, mb, sizeof(vha->dport_data));
1625                if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1626                        static char *results[] = {
1627                            "start", "done(pass)", "done(error)", "undefined" };
1628                        static char *types[] = {
1629                            "none", "dynamic", "static", "other" };
1630                        uint result = mb[1] >> 0 & 0x3;
1631                        uint type = mb[1] >> 6 & 0x3;
1632                        uint sw = mb[1] >> 15 & 0x1;
1633                        ql_dbg(ql_dbg_async, vha, 0x5052,
1634                            "D-Port Diagnostics: result=%s type=%s [sw=%u]\n",
1635                            results[result], types[type], sw);
1636                        if (result == 2) {
1637                                static char *reasons[] = {
1638                                    "reserved", "unexpected reject",
1639                                    "unexpected phase", "retry exceeded",
1640                                    "timed out", "not supported",
1641                                    "user stopped" };
1642                                uint reason = mb[2] >> 0 & 0xf;
1643                                uint phase = mb[2] >> 12 & 0xf;
1644                                ql_dbg(ql_dbg_async, vha, 0x5052,
1645                                    "D-Port Diagnostics: reason=%s phase=%u \n",
1646                                    reason < 7 ? reasons[reason] : "other",
1647                                    phase >> 1);
1648                        }
1649                }
1650                break;
1651
1652        case MBA_TEMPERATURE_ALERT:
1653                ql_dbg(ql_dbg_async, vha, 0x505e,
1654                    "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1655                break;
1656
1657        case MBA_TRANS_INSERT:
1658                ql_dbg(ql_dbg_async, vha, 0x5091,
1659                    "Transceiver Insertion: %04x\n", mb[1]);
1660                set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
1661                break;
1662
1663        case MBA_TRANS_REMOVE:
1664                ql_dbg(ql_dbg_async, vha, 0x5091, "Transceiver Removal\n");
1665                break;
1666
1667        default:
1668                ql_dbg(ql_dbg_async, vha, 0x5057,
1669                    "Unknown AEN:%04x %04x %04x %04x\n",
1670                    mb[0], mb[1], mb[2], mb[3]);
1671        }
1672
1673        qlt_async_event(mb[0], vha, mb);
1674
1675        if (!vha->vp_idx && ha->num_vhosts)
1676                qla2x00_alert_all_vps(rsp, mb);
1677}
1678
1679/**
1680 * qla2x00_process_completed_request() - Process a Fast Post response.
1681 * @vha: SCSI driver HA context
1682 * @req: request queue
1683 * @index: SRB index
1684 */
1685void
1686qla2x00_process_completed_request(struct scsi_qla_host *vha,
1687                                  struct req_que *req, uint32_t index)
1688{
1689        srb_t *sp;
1690        struct qla_hw_data *ha = vha->hw;
1691
1692        /* Validate handle. */
1693        if (index >= req->num_outstanding_cmds) {
1694                ql_log(ql_log_warn, vha, 0x3014,
1695                    "Invalid SCSI command index (%x).\n", index);
1696
1697                if (IS_P3P_TYPE(ha))
1698                        set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1699                else
1700                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1701                return;
1702        }
1703
1704        sp = req->outstanding_cmds[index];
1705        if (sp) {
1706                /* Free outstanding command slot. */
1707                req->outstanding_cmds[index] = NULL;
1708
1709                /* Save ISP completion status */
1710                sp->done(sp, DID_OK << 16);
1711        } else {
1712                ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1713
1714                if (IS_P3P_TYPE(ha))
1715                        set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1716                else
1717                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1718        }
1719}
1720
1721srb_t *
1722qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1723    struct req_que *req, void *iocb)
1724{
1725        struct qla_hw_data *ha = vha->hw;
1726        sts_entry_t *pkt = iocb;
1727        srb_t *sp;
1728        uint16_t index;
1729
1730        index = LSW(pkt->handle);
1731        if (index >= req->num_outstanding_cmds) {
1732                ql_log(ql_log_warn, vha, 0x5031,
1733                           "%s: Invalid command index (%x) type %8ph.\n",
1734                           func, index, iocb);
1735                if (IS_P3P_TYPE(ha))
1736                        set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1737                else
1738                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1739                return NULL;
1740        }
1741        sp = req->outstanding_cmds[index];
1742        if (!sp) {
1743                ql_log(ql_log_warn, vha, 0x5032,
1744                        "%s: Invalid completion handle (%x) -- timed-out.\n",
1745                        func, index);
1746                return NULL;
1747        }
1748        if (sp->handle != index) {
1749                ql_log(ql_log_warn, vha, 0x5033,
1750                        "%s: SRB handle (%x) mismatch %x.\n", func,
1751                        sp->handle, index);
1752                return NULL;
1753        }
1754
1755        req->outstanding_cmds[index] = NULL;
1756        return sp;
1757}
1758
1759static void
1760qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1761    struct mbx_entry *mbx)
1762{
1763        const char func[] = "MBX-IOCB";
1764        const char *type;
1765        fc_port_t *fcport;
1766        srb_t *sp;
1767        struct srb_iocb *lio;
1768        uint16_t *data;
1769        uint16_t status;
1770
1771        sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1772        if (!sp)
1773                return;
1774
1775        lio = &sp->u.iocb_cmd;
1776        type = sp->name;
1777        fcport = sp->fcport;
1778        data = lio->u.logio.data;
1779
1780        data[0] = MBS_COMMAND_ERROR;
1781        data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1782            QLA_LOGIO_LOGIN_RETRIED : 0;
1783        if (mbx->entry_status) {
1784                ql_dbg(ql_dbg_async, vha, 0x5043,
1785                    "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1786                    "entry-status=%x status=%x state-flag=%x "
1787                    "status-flags=%x.\n", type, sp->handle,
1788                    fcport->d_id.b.domain, fcport->d_id.b.area,
1789                    fcport->d_id.b.al_pa, mbx->entry_status,
1790                    le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1791                    le16_to_cpu(mbx->status_flags));
1792
1793                ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1794                    mbx, sizeof(*mbx));
1795
1796                goto logio_done;
1797        }
1798
1799        status = le16_to_cpu(mbx->status);
1800        if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1801            le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1802                status = 0;
1803        if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1804                ql_dbg(ql_dbg_async, vha, 0x5045,
1805                    "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1806                    type, sp->handle, fcport->d_id.b.domain,
1807                    fcport->d_id.b.area, fcport->d_id.b.al_pa,
1808                    le16_to_cpu(mbx->mb1));
1809
1810                data[0] = MBS_COMMAND_COMPLETE;
1811                if (sp->type == SRB_LOGIN_CMD) {
1812                        fcport->port_type = FCT_TARGET;
1813                        if (le16_to_cpu(mbx->mb1) & BIT_0)
1814                                fcport->port_type = FCT_INITIATOR;
1815                        else if (le16_to_cpu(mbx->mb1) & BIT_1)
1816                                fcport->flags |= FCF_FCP2_DEVICE;
1817                }
1818                goto logio_done;
1819        }
1820
1821        data[0] = le16_to_cpu(mbx->mb0);
1822        switch (data[0]) {
1823        case MBS_PORT_ID_USED:
1824                data[1] = le16_to_cpu(mbx->mb1);
1825                break;
1826        case MBS_LOOP_ID_USED:
1827                break;
1828        default:
1829                data[0] = MBS_COMMAND_ERROR;
1830                break;
1831        }
1832
1833        ql_log(ql_log_warn, vha, 0x5046,
1834            "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1835            "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1836            fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1837            status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1838            le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1839            le16_to_cpu(mbx->mb7));
1840
1841logio_done:
1842        sp->done(sp, 0);
1843}
1844
1845static void
1846qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1847    struct mbx_24xx_entry *pkt)
1848{
1849        const char func[] = "MBX-IOCB2";
1850        struct qla_hw_data *ha = vha->hw;
1851        srb_t *sp;
1852        struct srb_iocb *si;
1853        u16 sz, i;
1854        int res;
1855
1856        sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1857        if (!sp)
1858                return;
1859
1860        if (sp->type == SRB_SCSI_CMD ||
1861            sp->type == SRB_NVME_CMD ||
1862            sp->type == SRB_TM_CMD) {
1863                ql_log(ql_log_warn, vha, 0x509d,
1864                        "Inconsistent event entry type %d\n", sp->type);
1865                if (IS_P3P_TYPE(ha))
1866                        set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1867                else
1868                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1869                return;
1870        }
1871
1872        si = &sp->u.iocb_cmd;
1873        sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
1874
1875        for (i = 0; i < sz; i++)
1876                si->u.mbx.in_mb[i] = pkt->mb[i];
1877
1878        res = (si->u.mbx.in_mb[0] & MBS_MASK);
1879
1880        sp->done(sp, res);
1881}
1882
1883static void
1884qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1885    struct nack_to_isp *pkt)
1886{
1887        const char func[] = "nack";
1888        srb_t *sp;
1889        int res = 0;
1890
1891        sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1892        if (!sp)
1893                return;
1894
1895        if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
1896                res = QLA_FUNCTION_FAILED;
1897
1898        sp->done(sp, res);
1899}
1900
1901static void
1902qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1903    sts_entry_t *pkt, int iocb_type)
1904{
1905        const char func[] = "CT_IOCB";
1906        const char *type;
1907        srb_t *sp;
1908        struct bsg_job *bsg_job;
1909        struct fc_bsg_reply *bsg_reply;
1910        uint16_t comp_status;
1911        int res = 0;
1912
1913        sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1914        if (!sp)
1915                return;
1916
1917        switch (sp->type) {
1918        case SRB_CT_CMD:
1919            bsg_job = sp->u.bsg_job;
1920            bsg_reply = bsg_job->reply;
1921
1922            type = "ct pass-through";
1923
1924            comp_status = le16_to_cpu(pkt->comp_status);
1925
1926            /*
1927             * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1928             * fc payload  to the caller
1929             */
1930            bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1931            bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1932
1933            if (comp_status != CS_COMPLETE) {
1934                    if (comp_status == CS_DATA_UNDERRUN) {
1935                            res = DID_OK << 16;
1936                            bsg_reply->reply_payload_rcv_len =
1937                                le16_to_cpu(pkt->rsp_info_len);
1938
1939                            ql_log(ql_log_warn, vha, 0x5048,
1940                                "CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
1941                                type, comp_status,
1942                                bsg_reply->reply_payload_rcv_len);
1943                    } else {
1944                            ql_log(ql_log_warn, vha, 0x5049,
1945                                "CT pass-through-%s error comp_status=0x%x.\n",
1946                                type, comp_status);
1947                            res = DID_ERROR << 16;
1948                            bsg_reply->reply_payload_rcv_len = 0;
1949                    }
1950                    ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1951                        pkt, sizeof(*pkt));
1952            } else {
1953                    res = DID_OK << 16;
1954                    bsg_reply->reply_payload_rcv_len =
1955                        bsg_job->reply_payload.payload_len;
1956                    bsg_job->reply_len = 0;
1957            }
1958            break;
1959        case SRB_CT_PTHRU_CMD:
1960            /*
1961             * borrowing sts_entry_24xx.comp_status.
1962             * same location as ct_entry_24xx.comp_status
1963             */
1964             res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
1965                 (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1966                 sp->name);
1967             break;
1968        }
1969
1970        sp->done(sp, res);
1971}
1972
1973static void
1974qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1975    struct sts_entry_24xx *pkt, int iocb_type)
1976{
1977        struct els_sts_entry_24xx *ese = (struct els_sts_entry_24xx *)pkt;
1978        const char func[] = "ELS_CT_IOCB";
1979        const char *type;
1980        srb_t *sp;
1981        struct bsg_job *bsg_job;
1982        struct fc_bsg_reply *bsg_reply;
1983        uint16_t comp_status;
1984        uint32_t fw_status[3];
1985        int res;
1986        struct srb_iocb *els;
1987
1988        sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1989        if (!sp)
1990                return;
1991
1992        type = NULL;
1993        switch (sp->type) {
1994        case SRB_ELS_CMD_RPT:
1995        case SRB_ELS_CMD_HST:
1996                type = "els";
1997                break;
1998        case SRB_CT_CMD:
1999                type = "ct pass-through";
2000                break;
2001        case SRB_ELS_DCMD:
2002                type = "Driver ELS logo";
2003                if (iocb_type != ELS_IOCB_TYPE) {
2004                        ql_dbg(ql_dbg_user, vha, 0x5047,
2005                            "Completing %s: (%p) type=%d.\n",
2006                            type, sp, sp->type);
2007                        sp->done(sp, 0);
2008                        return;
2009                }
2010                break;
2011        case SRB_CT_PTHRU_CMD:
2012                /* borrowing sts_entry_24xx.comp_status.
2013                   same location as ct_entry_24xx.comp_status
2014                 */
2015                res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
2016                        (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
2017                        sp->name);
2018                sp->done(sp, res);
2019                return;
2020        default:
2021                ql_dbg(ql_dbg_user, vha, 0x503e,
2022                    "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
2023                return;
2024        }
2025
2026        comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
2027        fw_status[1] = le32_to_cpu(ese->error_subcode_1);
2028        fw_status[2] = le32_to_cpu(ese->error_subcode_2);
2029
2030        if (iocb_type == ELS_IOCB_TYPE) {
2031                els = &sp->u.iocb_cmd;
2032                els->u.els_plogi.fw_status[0] = cpu_to_le32(fw_status[0]);
2033                els->u.els_plogi.fw_status[1] = cpu_to_le32(fw_status[1]);
2034                els->u.els_plogi.fw_status[2] = cpu_to_le32(fw_status[2]);
2035                els->u.els_plogi.comp_status = cpu_to_le16(fw_status[0]);
2036                if (comp_status == CS_COMPLETE) {
2037                        res =  DID_OK << 16;
2038                } else {
2039                        if (comp_status == CS_DATA_UNDERRUN) {
2040                                res =  DID_OK << 16;
2041                                els->u.els_plogi.len = cpu_to_le16(le32_to_cpu(
2042                                        ese->total_byte_count));
2043                        } else {
2044                                els->u.els_plogi.len = 0;
2045                                res = DID_ERROR << 16;
2046                        }
2047                }
2048                ql_dbg(ql_dbg_disc, vha, 0x503f,
2049                    "ELS IOCB Done -%s hdl=%x comp_status=0x%x error subcode 1=0x%x error subcode 2=0x%x total_byte=0x%x\n",
2050                    type, sp->handle, comp_status, fw_status[1], fw_status[2],
2051                    le32_to_cpu(ese->total_byte_count));
2052                goto els_ct_done;
2053        }
2054
2055        /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
2056         * fc payload  to the caller
2057         */
2058        bsg_job = sp->u.bsg_job;
2059        bsg_reply = bsg_job->reply;
2060        bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
2061        bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
2062
2063        if (comp_status != CS_COMPLETE) {
2064                if (comp_status == CS_DATA_UNDERRUN) {
2065                        res = DID_OK << 16;
2066                        bsg_reply->reply_payload_rcv_len =
2067                                le32_to_cpu(ese->total_byte_count);
2068
2069                        ql_dbg(ql_dbg_user, vha, 0x503f,
2070                            "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2071                            "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
2072                            type, sp->handle, comp_status, fw_status[1], fw_status[2],
2073                            le32_to_cpu(ese->total_byte_count));
2074                } else {
2075                        ql_dbg(ql_dbg_user, vha, 0x5040,
2076                            "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2077                            "error subcode 1=0x%x error subcode 2=0x%x.\n",
2078                            type, sp->handle, comp_status,
2079                            le32_to_cpu(ese->error_subcode_1),
2080                            le32_to_cpu(ese->error_subcode_2));
2081                        res = DID_ERROR << 16;
2082                        bsg_reply->reply_payload_rcv_len = 0;
2083                }
2084                memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
2085                       fw_status, sizeof(fw_status));
2086                ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
2087                    pkt, sizeof(*pkt));
2088        }
2089        else {
2090                res =  DID_OK << 16;
2091                bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
2092                bsg_job->reply_len = 0;
2093        }
2094els_ct_done:
2095
2096        sp->done(sp, res);
2097}
2098
2099static void
2100qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
2101    struct logio_entry_24xx *logio)
2102{
2103        const char func[] = "LOGIO-IOCB";
2104        const char *type;
2105        fc_port_t *fcport;
2106        srb_t *sp;
2107        struct srb_iocb *lio;
2108        uint16_t *data;
2109        uint32_t iop[2];
2110
2111        sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
2112        if (!sp)
2113                return;
2114
2115        lio = &sp->u.iocb_cmd;
2116        type = sp->name;
2117        fcport = sp->fcport;
2118        data = lio->u.logio.data;
2119
2120        data[0] = MBS_COMMAND_ERROR;
2121        data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
2122                QLA_LOGIO_LOGIN_RETRIED : 0;
2123        if (logio->entry_status) {
2124                ql_log(ql_log_warn, fcport->vha, 0x5034,
2125                    "Async-%s error entry - %8phC hdl=%x"
2126                    "portid=%02x%02x%02x entry-status=%x.\n",
2127                    type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
2128                    fcport->d_id.b.area, fcport->d_id.b.al_pa,
2129                    logio->entry_status);
2130                ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
2131                    logio, sizeof(*logio));
2132
2133                goto logio_done;
2134        }
2135
2136        if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
2137                ql_dbg(ql_dbg_async, sp->vha, 0x5036,
2138                    "Async-%s complete: handle=%x pid=%06x wwpn=%8phC iop0=%x\n",
2139                    type, sp->handle, fcport->d_id.b24, fcport->port_name,
2140                    le32_to_cpu(logio->io_parameter[0]));
2141
2142                vha->hw->exch_starvation = 0;
2143                data[0] = MBS_COMMAND_COMPLETE;
2144
2145                if (sp->type == SRB_PRLI_CMD) {
2146                        lio->u.logio.iop[0] =
2147                            le32_to_cpu(logio->io_parameter[0]);
2148                        lio->u.logio.iop[1] =
2149                            le32_to_cpu(logio->io_parameter[1]);
2150                        goto logio_done;
2151                }
2152
2153                if (sp->type != SRB_LOGIN_CMD)
2154                        goto logio_done;
2155
2156                iop[0] = le32_to_cpu(logio->io_parameter[0]);
2157                if (iop[0] & BIT_4) {
2158                        fcport->port_type = FCT_TARGET;
2159                        if (iop[0] & BIT_8)
2160                                fcport->flags |= FCF_FCP2_DEVICE;
2161                } else if (iop[0] & BIT_5)
2162                        fcport->port_type = FCT_INITIATOR;
2163
2164                if (iop[0] & BIT_7)
2165                        fcport->flags |= FCF_CONF_COMP_SUPPORTED;
2166
2167                if (logio->io_parameter[7] || logio->io_parameter[8])
2168                        fcport->supported_classes |= FC_COS_CLASS2;
2169                if (logio->io_parameter[9] || logio->io_parameter[10])
2170                        fcport->supported_classes |= FC_COS_CLASS3;
2171
2172                goto logio_done;
2173        }
2174
2175        iop[0] = le32_to_cpu(logio->io_parameter[0]);
2176        iop[1] = le32_to_cpu(logio->io_parameter[1]);
2177        lio->u.logio.iop[0] = iop[0];
2178        lio->u.logio.iop[1] = iop[1];
2179        switch (iop[0]) {
2180        case LSC_SCODE_PORTID_USED:
2181                data[0] = MBS_PORT_ID_USED;
2182                data[1] = LSW(iop[1]);
2183                break;
2184        case LSC_SCODE_NPORT_USED:
2185                data[0] = MBS_LOOP_ID_USED;
2186                break;
2187        case LSC_SCODE_CMD_FAILED:
2188                if (iop[1] == 0x0606) {
2189                        /*
2190                         * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
2191                         * Target side acked.
2192                         */
2193                        data[0] = MBS_COMMAND_COMPLETE;
2194                        goto logio_done;
2195                }
2196                data[0] = MBS_COMMAND_ERROR;
2197                break;
2198        case LSC_SCODE_NOXCB:
2199                vha->hw->exch_starvation++;
2200                if (vha->hw->exch_starvation > 5) {
2201                        ql_log(ql_log_warn, vha, 0xd046,
2202                            "Exchange starvation. Resetting RISC\n");
2203
2204                        vha->hw->exch_starvation = 0;
2205
2206                        if (IS_P3P_TYPE(vha->hw))
2207                                set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2208                        else
2209                                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2210                        qla2xxx_wake_dpc(vha);
2211                }
2212                fallthrough;
2213        default:
2214                data[0] = MBS_COMMAND_ERROR;
2215                break;
2216        }
2217
2218        ql_log(ql_log_warn, sp->vha, 0x5037,
2219               "Async-%s failed: handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
2220               type, sp->handle, fcport->d_id.b24, fcport->port_name,
2221               le16_to_cpu(logio->comp_status),
2222               le32_to_cpu(logio->io_parameter[0]),
2223               le32_to_cpu(logio->io_parameter[1]));
2224
2225logio_done:
2226        sp->done(sp, 0);
2227}
2228
2229static void
2230qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
2231{
2232        const char func[] = "TMF-IOCB";
2233        const char *type;
2234        fc_port_t *fcport;
2235        srb_t *sp;
2236        struct srb_iocb *iocb;
2237        struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2238        u16 comp_status;
2239
2240        sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
2241        if (!sp)
2242                return;
2243
2244        comp_status = le16_to_cpu(sts->comp_status);
2245        iocb = &sp->u.iocb_cmd;
2246        type = sp->name;
2247        fcport = sp->fcport;
2248        iocb->u.tmf.data = QLA_SUCCESS;
2249
2250        if (sts->entry_status) {
2251                ql_log(ql_log_warn, fcport->vha, 0x5038,
2252                    "Async-%s error - hdl=%x entry-status(%x).\n",
2253                    type, sp->handle, sts->entry_status);
2254                iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2255        } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
2256                ql_log(ql_log_warn, fcport->vha, 0x5039,
2257                    "Async-%s error - hdl=%x completion status(%x).\n",
2258                    type, sp->handle, comp_status);
2259                iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2260        } else if ((le16_to_cpu(sts->scsi_status) &
2261            SS_RESPONSE_INFO_LEN_VALID)) {
2262                if (le32_to_cpu(sts->rsp_data_len) < 4) {
2263                        ql_log(ql_log_warn, fcport->vha, 0x503b,
2264                            "Async-%s error - hdl=%x not enough response(%d).\n",
2265                            type, sp->handle, sts->rsp_data_len);
2266                } else if (sts->data[3]) {
2267                        ql_log(ql_log_warn, fcport->vha, 0x503c,
2268                            "Async-%s error - hdl=%x response(%x).\n",
2269                            type, sp->handle, sts->data[3]);
2270                        iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2271                }
2272        }
2273
2274        switch (comp_status) {
2275        case CS_PORT_LOGGED_OUT:
2276        case CS_PORT_CONFIG_CHG:
2277        case CS_PORT_BUSY:
2278        case CS_INCOMPLETE:
2279        case CS_PORT_UNAVAILABLE:
2280        case CS_TIMEOUT:
2281        case CS_RESET:
2282                if (atomic_read(&fcport->state) == FCS_ONLINE) {
2283                        ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2284                               "-Port to be marked lost on fcport=%02x%02x%02x, current port state= %s comp_status %x.\n",
2285                               fcport->d_id.b.domain, fcport->d_id.b.area,
2286                               fcport->d_id.b.al_pa,
2287                               port_state_str[FCS_ONLINE],
2288                               comp_status);
2289
2290                        qlt_schedule_sess_for_deletion(fcport);
2291                }
2292                break;
2293
2294        default:
2295                break;
2296        }
2297
2298        if (iocb->u.tmf.data != QLA_SUCCESS)
2299                ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, sp->vha, 0x5055,
2300                    sts, sizeof(*sts));
2301
2302        sp->done(sp, 0);
2303}
2304
2305static void qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2306    void *tsk, srb_t *sp)
2307{
2308        fc_port_t *fcport;
2309        struct srb_iocb *iocb;
2310        struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2311        uint16_t        state_flags;
2312        struct nvmefc_fcp_req *fd;
2313        uint16_t        ret = QLA_SUCCESS;
2314        __le16          comp_status = sts->comp_status;
2315        int             logit = 0;
2316
2317        iocb = &sp->u.iocb_cmd;
2318        fcport = sp->fcport;
2319        iocb->u.nvme.comp_status = comp_status;
2320        state_flags  = le16_to_cpu(sts->state_flags);
2321        fd = iocb->u.nvme.desc;
2322
2323        if (unlikely(iocb->u.nvme.aen_op))
2324                atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
2325        else
2326                sp->qpair->cmd_completion_cnt++;
2327
2328        if (unlikely(comp_status != CS_COMPLETE))
2329                logit = 1;
2330
2331        fd->transferred_length = fd->payload_length -
2332            le32_to_cpu(sts->residual_len);
2333
2334        /*
2335         * State flags: Bit 6 and 0.
2336         * If 0 is set, we don't care about 6.
2337         * both cases resp was dma'd to host buffer
2338         * if both are 0, that is good path case.
2339         * if six is set and 0 is clear, we need to
2340         * copy resp data from status iocb to resp buffer.
2341         */
2342        if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
2343                iocb->u.nvme.rsp_pyld_len = 0;
2344        } else if ((state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP)) ==
2345                        (SF_FCP_RSP_DMA | SF_NVME_ERSP)) {
2346                /* Response already DMA'd to fd->rspaddr. */
2347                iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2348        } else if ((state_flags & SF_FCP_RSP_DMA)) {
2349                /*
2350                 * Non-zero value in first 12 bytes of NVMe_RSP IU, treat this
2351                 * as an error.
2352                 */
2353                iocb->u.nvme.rsp_pyld_len = 0;
2354                fd->transferred_length = 0;
2355                ql_dbg(ql_dbg_io, fcport->vha, 0x307a,
2356                        "Unexpected values in NVMe_RSP IU.\n");
2357                logit = 1;
2358        } else if (state_flags & SF_NVME_ERSP) {
2359                uint32_t *inbuf, *outbuf;
2360                uint16_t iter;
2361
2362                inbuf = (uint32_t *)&sts->nvme_ersp_data;
2363                outbuf = (uint32_t *)fd->rspaddr;
2364                iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2365                if (unlikely(le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >
2366                    sizeof(struct nvme_fc_ersp_iu))) {
2367                        if (ql_mask_match(ql_dbg_io)) {
2368                                WARN_ONCE(1, "Unexpected response payload length %u.\n",
2369                                    iocb->u.nvme.rsp_pyld_len);
2370                                ql_log(ql_log_warn, fcport->vha, 0x5100,
2371                                    "Unexpected response payload length %u.\n",
2372                                    iocb->u.nvme.rsp_pyld_len);
2373                        }
2374                        iocb->u.nvme.rsp_pyld_len =
2375                                cpu_to_le16(sizeof(struct nvme_fc_ersp_iu));
2376                }
2377                iter = le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >> 2;
2378                for (; iter; iter--)
2379                        *outbuf++ = swab32(*inbuf++);
2380        }
2381
2382        if (state_flags & SF_NVME_ERSP) {
2383                struct nvme_fc_ersp_iu *rsp_iu = fd->rspaddr;
2384                u32 tgt_xfer_len;
2385
2386                tgt_xfer_len = be32_to_cpu(rsp_iu->xfrd_len);
2387                if (fd->transferred_length != tgt_xfer_len) {
2388                        ql_log(ql_log_warn, fcport->vha, 0x3079,
2389                               "Dropped frame(s) detected (sent/rcvd=%u/%u).\n",
2390                               tgt_xfer_len, fd->transferred_length);
2391                        logit = 1;
2392                } else if (le16_to_cpu(comp_status) == CS_DATA_UNDERRUN) {
2393                        /*
2394                         * Do not log if this is just an underflow and there
2395                         * is no data loss.
2396                         */
2397                        logit = 0;
2398                }
2399        }
2400
2401        if (unlikely(logit))
2402                ql_log(ql_log_warn, fcport->vha, 0x5060,
2403                   "NVME-%s ERR Handling - hdl=%x status(%x) tr_len:%x resid=%x  ox_id=%x\n",
2404                   sp->name, sp->handle, comp_status,
2405                   fd->transferred_length, le32_to_cpu(sts->residual_len),
2406                   sts->ox_id);
2407
2408        /*
2409         * If transport error then Failure (HBA rejects request)
2410         * otherwise transport will handle.
2411         */
2412        switch (le16_to_cpu(comp_status)) {
2413        case CS_COMPLETE:
2414                break;
2415
2416        case CS_RESET:
2417        case CS_PORT_UNAVAILABLE:
2418        case CS_PORT_LOGGED_OUT:
2419                fcport->nvme_flag |= NVME_FLAG_RESETTING;
2420                fallthrough;
2421        case CS_ABORTED:
2422        case CS_PORT_BUSY:
2423                fd->transferred_length = 0;
2424                iocb->u.nvme.rsp_pyld_len = 0;
2425                ret = QLA_ABORTED;
2426                break;
2427        case CS_DATA_UNDERRUN:
2428                break;
2429        default:
2430                ret = QLA_FUNCTION_FAILED;
2431                break;
2432        }
2433        sp->done(sp, ret);
2434}
2435
2436static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
2437    struct vp_ctrl_entry_24xx *vce)
2438{
2439        const char func[] = "CTRLVP-IOCB";
2440        srb_t *sp;
2441        int rval = QLA_SUCCESS;
2442
2443        sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
2444        if (!sp)
2445                return;
2446
2447        if (vce->entry_status != 0) {
2448                ql_dbg(ql_dbg_vport, vha, 0x10c4,
2449                    "%s: Failed to complete IOCB -- error status (%x)\n",
2450                    sp->name, vce->entry_status);
2451                rval = QLA_FUNCTION_FAILED;
2452        } else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
2453                ql_dbg(ql_dbg_vport, vha, 0x10c5,
2454                    "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
2455                    sp->name, le16_to_cpu(vce->comp_status),
2456                    le16_to_cpu(vce->vp_idx_failed));
2457                rval = QLA_FUNCTION_FAILED;
2458        } else {
2459                ql_dbg(ql_dbg_vport, vha, 0x10c6,
2460                    "Done %s.\n", __func__);
2461        }
2462
2463        sp->rc = rval;
2464        sp->done(sp, rval);
2465}
2466
2467/* Process a single response queue entry. */
2468static void qla2x00_process_response_entry(struct scsi_qla_host *vha,
2469                                           struct rsp_que *rsp,
2470                                           sts_entry_t *pkt)
2471{
2472        sts21_entry_t *sts21_entry;
2473        sts22_entry_t *sts22_entry;
2474        uint16_t handle_cnt;
2475        uint16_t cnt;
2476
2477        switch (pkt->entry_type) {
2478        case STATUS_TYPE:
2479                qla2x00_status_entry(vha, rsp, pkt);
2480                break;
2481        case STATUS_TYPE_21:
2482                sts21_entry = (sts21_entry_t *)pkt;
2483                handle_cnt = sts21_entry->handle_count;
2484                for (cnt = 0; cnt < handle_cnt; cnt++)
2485                        qla2x00_process_completed_request(vha, rsp->req,
2486                                                sts21_entry->handle[cnt]);
2487                break;
2488        case STATUS_TYPE_22:
2489                sts22_entry = (sts22_entry_t *)pkt;
2490                handle_cnt = sts22_entry->handle_count;
2491                for (cnt = 0; cnt < handle_cnt; cnt++)
2492                        qla2x00_process_completed_request(vha, rsp->req,
2493                                                sts22_entry->handle[cnt]);
2494                break;
2495        case STATUS_CONT_TYPE:
2496                qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2497                break;
2498        case MBX_IOCB_TYPE:
2499                qla2x00_mbx_iocb_entry(vha, rsp->req, (struct mbx_entry *)pkt);
2500                break;
2501        case CT_IOCB_TYPE:
2502                qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2503                break;
2504        default:
2505                /* Type Not Supported. */
2506                ql_log(ql_log_warn, vha, 0x504a,
2507                       "Received unknown response pkt type %x entry status=%x.\n",
2508                       pkt->entry_type, pkt->entry_status);
2509                break;
2510        }
2511}
2512
2513/**
2514 * qla2x00_process_response_queue() - Process response queue entries.
2515 * @rsp: response queue
2516 */
2517void
2518qla2x00_process_response_queue(struct rsp_que *rsp)
2519{
2520        struct scsi_qla_host *vha;
2521        struct qla_hw_data *ha = rsp->hw;
2522        struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2523        sts_entry_t     *pkt;
2524
2525        vha = pci_get_drvdata(ha->pdev);
2526
2527        if (!vha->flags.online)
2528                return;
2529
2530        while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2531                pkt = (sts_entry_t *)rsp->ring_ptr;
2532
2533                rsp->ring_index++;
2534                if (rsp->ring_index == rsp->length) {
2535                        rsp->ring_index = 0;
2536                        rsp->ring_ptr = rsp->ring;
2537                } else {
2538                        rsp->ring_ptr++;
2539                }
2540
2541                if (pkt->entry_status != 0) {
2542                        qla2x00_error_entry(vha, rsp, pkt);
2543                        ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2544                        wmb();
2545                        continue;
2546                }
2547
2548                qla2x00_process_response_entry(vha, rsp, pkt);
2549                ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2550                wmb();
2551        }
2552
2553        /* Adjust ring index */
2554        wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
2555}
2556
2557static inline void
2558qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2559                     uint32_t sense_len, struct rsp_que *rsp, int res)
2560{
2561        struct scsi_qla_host *vha = sp->vha;
2562        struct scsi_cmnd *cp = GET_CMD_SP(sp);
2563        uint32_t track_sense_len;
2564
2565        if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2566                sense_len = SCSI_SENSE_BUFFERSIZE;
2567
2568        SET_CMD_SENSE_LEN(sp, sense_len);
2569        SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2570        track_sense_len = sense_len;
2571
2572        if (sense_len > par_sense_len)
2573                sense_len = par_sense_len;
2574
2575        memcpy(cp->sense_buffer, sense_data, sense_len);
2576
2577        SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2578        track_sense_len -= sense_len;
2579        SET_CMD_SENSE_LEN(sp, track_sense_len);
2580
2581        if (track_sense_len != 0) {
2582                rsp->status_srb = sp;
2583                cp->result = res;
2584        }
2585
2586        if (sense_len) {
2587                ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
2588                    "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2589                    sp->vha->host_no, cp->device->id, cp->device->lun,
2590                    cp);
2591                ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
2592                    cp->sense_buffer, sense_len);
2593        }
2594}
2595
2596struct scsi_dif_tuple {
2597        __be16 guard;       /* Checksum */
2598        __be16 app_tag;         /* APPL identifier */
2599        __be32 ref_tag;         /* Target LBA or indirect LBA */
2600};
2601
2602/*
2603 * Checks the guard or meta-data for the type of error
2604 * detected by the HBA. In case of errors, we set the
2605 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
2606 * to indicate to the kernel that the HBA detected error.
2607 */
2608static inline int
2609qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
2610{
2611        struct scsi_qla_host *vha = sp->vha;
2612        struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2613        uint8_t         *ap = &sts24->data[12];
2614        uint8_t         *ep = &sts24->data[20];
2615        uint32_t        e_ref_tag, a_ref_tag;
2616        uint16_t        e_app_tag, a_app_tag;
2617        uint16_t        e_guard, a_guard;
2618
2619        /*
2620         * swab32 of the "data" field in the beginning of qla2x00_status_entry()
2621         * would make guard field appear at offset 2
2622         */
2623        a_guard   = get_unaligned_le16(ap + 2);
2624        a_app_tag = get_unaligned_le16(ap + 0);
2625        a_ref_tag = get_unaligned_le32(ap + 4);
2626        e_guard   = get_unaligned_le16(ep + 2);
2627        e_app_tag = get_unaligned_le16(ep + 0);
2628        e_ref_tag = get_unaligned_le32(ep + 4);
2629
2630        ql_dbg(ql_dbg_io, vha, 0x3023,
2631            "iocb(s) %p Returned STATUS.\n", sts24);
2632
2633        ql_dbg(ql_dbg_io, vha, 0x3024,
2634            "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
2635            " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
2636            " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
2637            cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
2638            a_app_tag, e_app_tag, a_guard, e_guard);
2639
2640        /*
2641         * Ignore sector if:
2642         * For type     3: ref & app tag is all 'f's
2643         * For type 0,1,2: app tag is all 'f's
2644         */
2645        if (a_app_tag == be16_to_cpu(T10_PI_APP_ESCAPE) &&
2646            (scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3 ||
2647             a_ref_tag == be32_to_cpu(T10_PI_REF_ESCAPE))) {
2648                uint32_t blocks_done, resid;
2649                sector_t lba_s = scsi_get_lba(cmd);
2650
2651                /* 2TB boundary case covered automatically with this */
2652                blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
2653
2654                resid = scsi_bufflen(cmd) - (blocks_done *
2655                    cmd->device->sector_size);
2656
2657                scsi_set_resid(cmd, resid);
2658                cmd->result = DID_OK << 16;
2659
2660                /* Update protection tag */
2661                if (scsi_prot_sg_count(cmd)) {
2662                        uint32_t i, j = 0, k = 0, num_ent;
2663                        struct scatterlist *sg;
2664                        struct t10_pi_tuple *spt;
2665
2666                        /* Patch the corresponding protection tags */
2667                        scsi_for_each_prot_sg(cmd, sg,
2668                            scsi_prot_sg_count(cmd), i) {
2669                                num_ent = sg_dma_len(sg) / 8;
2670                                if (k + num_ent < blocks_done) {
2671                                        k += num_ent;
2672                                        continue;
2673                                }
2674                                j = blocks_done - k - 1;
2675                                k = blocks_done;
2676                                break;
2677                        }
2678
2679                        if (k != blocks_done) {
2680                                ql_log(ql_log_warn, vha, 0x302f,
2681                                    "unexpected tag values tag:lba=%x:%llx)\n",
2682                                    e_ref_tag, (unsigned long long)lba_s);
2683                                return 1;
2684                        }
2685
2686                        spt = page_address(sg_page(sg)) + sg->offset;
2687                        spt += j;
2688
2689                        spt->app_tag = T10_PI_APP_ESCAPE;
2690                        if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
2691                                spt->ref_tag = T10_PI_REF_ESCAPE;
2692                }
2693
2694                return 0;
2695        }
2696
2697        /* check guard */
2698        if (e_guard != a_guard) {
2699                scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1);
2700                set_host_byte(cmd, DID_ABORT);
2701                return 1;
2702        }
2703
2704        /* check ref tag */
2705        if (e_ref_tag != a_ref_tag) {
2706                scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3);
2707                set_host_byte(cmd, DID_ABORT);
2708                return 1;
2709        }
2710
2711        /* check appl tag */
2712        if (e_app_tag != a_app_tag) {
2713                scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2);
2714                set_host_byte(cmd, DID_ABORT);
2715                return 1;
2716        }
2717
2718        return 1;
2719}
2720
2721static void
2722qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2723                                  struct req_que *req, uint32_t index)
2724{
2725        struct qla_hw_data *ha = vha->hw;
2726        srb_t *sp;
2727        uint16_t        comp_status;
2728        uint16_t        scsi_status;
2729        uint16_t thread_id;
2730        uint32_t rval = EXT_STATUS_OK;
2731        struct bsg_job *bsg_job = NULL;
2732        struct fc_bsg_request *bsg_request;
2733        struct fc_bsg_reply *bsg_reply;
2734        sts_entry_t *sts = pkt;
2735        struct sts_entry_24xx *sts24 = pkt;
2736
2737        /* Validate handle. */
2738        if (index >= req->num_outstanding_cmds) {
2739                ql_log(ql_log_warn, vha, 0x70af,
2740                    "Invalid SCSI completion handle 0x%x.\n", index);
2741                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2742                return;
2743        }
2744
2745        sp = req->outstanding_cmds[index];
2746        if (!sp) {
2747                ql_log(ql_log_warn, vha, 0x70b0,
2748                    "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
2749                    req->id, index);
2750
2751                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2752                return;
2753        }
2754
2755        /* Free outstanding command slot. */
2756        req->outstanding_cmds[index] = NULL;
2757        bsg_job = sp->u.bsg_job;
2758        bsg_request = bsg_job->request;
2759        bsg_reply = bsg_job->reply;
2760
2761        if (IS_FWI2_CAPABLE(ha)) {
2762                comp_status = le16_to_cpu(sts24->comp_status);
2763                scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2764        } else {
2765                comp_status = le16_to_cpu(sts->comp_status);
2766                scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2767        }
2768
2769        thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
2770        switch (comp_status) {
2771        case CS_COMPLETE:
2772                if (scsi_status == 0) {
2773                        bsg_reply->reply_payload_rcv_len =
2774                                        bsg_job->reply_payload.payload_len;
2775                        vha->qla_stats.input_bytes +=
2776                                bsg_reply->reply_payload_rcv_len;
2777                        vha->qla_stats.input_requests++;
2778                        rval = EXT_STATUS_OK;
2779                }
2780                goto done;
2781
2782        case CS_DATA_OVERRUN:
2783                ql_dbg(ql_dbg_user, vha, 0x70b1,
2784                    "Command completed with data overrun thread_id=%d\n",
2785                    thread_id);
2786                rval = EXT_STATUS_DATA_OVERRUN;
2787                break;
2788
2789        case CS_DATA_UNDERRUN:
2790                ql_dbg(ql_dbg_user, vha, 0x70b2,
2791                    "Command completed with data underrun thread_id=%d\n",
2792                    thread_id);
2793                rval = EXT_STATUS_DATA_UNDERRUN;
2794                break;
2795        case CS_BIDIR_RD_OVERRUN:
2796                ql_dbg(ql_dbg_user, vha, 0x70b3,
2797                    "Command completed with read data overrun thread_id=%d\n",
2798                    thread_id);
2799                rval = EXT_STATUS_DATA_OVERRUN;
2800                break;
2801
2802        case CS_BIDIR_RD_WR_OVERRUN:
2803                ql_dbg(ql_dbg_user, vha, 0x70b4,
2804                    "Command completed with read and write data overrun "
2805                    "thread_id=%d\n", thread_id);
2806                rval = EXT_STATUS_DATA_OVERRUN;
2807                break;
2808
2809        case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
2810                ql_dbg(ql_dbg_user, vha, 0x70b5,
2811                    "Command completed with read data over and write data "
2812                    "underrun thread_id=%d\n", thread_id);
2813                rval = EXT_STATUS_DATA_OVERRUN;
2814                break;
2815
2816        case CS_BIDIR_RD_UNDERRUN:
2817                ql_dbg(ql_dbg_user, vha, 0x70b6,
2818                    "Command completed with read data underrun "
2819                    "thread_id=%d\n", thread_id);
2820                rval = EXT_STATUS_DATA_UNDERRUN;
2821                break;
2822
2823        case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
2824                ql_dbg(ql_dbg_user, vha, 0x70b7,
2825                    "Command completed with read data under and write data "
2826                    "overrun thread_id=%d\n", thread_id);
2827                rval = EXT_STATUS_DATA_UNDERRUN;
2828                break;
2829
2830        case CS_BIDIR_RD_WR_UNDERRUN:
2831                ql_dbg(ql_dbg_user, vha, 0x70b8,
2832                    "Command completed with read and write data underrun "
2833                    "thread_id=%d\n", thread_id);
2834                rval = EXT_STATUS_DATA_UNDERRUN;
2835                break;
2836
2837        case CS_BIDIR_DMA:
2838                ql_dbg(ql_dbg_user, vha, 0x70b9,
2839                    "Command completed with data DMA error thread_id=%d\n",
2840                    thread_id);
2841                rval = EXT_STATUS_DMA_ERR;
2842                break;
2843
2844        case CS_TIMEOUT:
2845                ql_dbg(ql_dbg_user, vha, 0x70ba,
2846                    "Command completed with timeout thread_id=%d\n",
2847                    thread_id);
2848                rval = EXT_STATUS_TIMEOUT;
2849                break;
2850        default:
2851                ql_dbg(ql_dbg_user, vha, 0x70bb,
2852                    "Command completed with completion status=0x%x "
2853                    "thread_id=%d\n", comp_status, thread_id);
2854                rval = EXT_STATUS_ERR;
2855                break;
2856        }
2857        bsg_reply->reply_payload_rcv_len = 0;
2858
2859done:
2860        /* Return the vendor specific reply to API */
2861        bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2862        bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2863        /* Always return DID_OK, bsg will send the vendor specific response
2864         * in this case only */
2865        sp->done(sp, DID_OK << 16);
2866
2867}
2868
2869/**
2870 * qla2x00_status_entry() - Process a Status IOCB entry.
2871 * @vha: SCSI driver HA context
2872 * @rsp: response queue
2873 * @pkt: Entry pointer
2874 */
2875static void
2876qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2877{
2878        srb_t           *sp;
2879        fc_port_t       *fcport;
2880        struct scsi_cmnd *cp;
2881        sts_entry_t *sts = pkt;
2882        struct sts_entry_24xx *sts24 = pkt;
2883        uint16_t        comp_status;
2884        uint16_t        scsi_status;
2885        uint16_t        ox_id;
2886        uint8_t         lscsi_status;
2887        int32_t         resid;
2888        uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2889            fw_resid_len;
2890        uint8_t         *rsp_info, *sense_data;
2891        struct qla_hw_data *ha = vha->hw;
2892        uint32_t handle;
2893        uint16_t que;
2894        struct req_que *req;
2895        int logit = 1;
2896        int res = 0;
2897        uint16_t state_flags = 0;
2898        uint16_t sts_qual = 0;
2899
2900        if (IS_FWI2_CAPABLE(ha)) {
2901                comp_status = le16_to_cpu(sts24->comp_status);
2902                scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2903                state_flags = le16_to_cpu(sts24->state_flags);
2904        } else {
2905                comp_status = le16_to_cpu(sts->comp_status);
2906                scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2907        }
2908        handle = (uint32_t) LSW(sts->handle);
2909        que = MSW(sts->handle);
2910        req = ha->req_q_map[que];
2911
2912        /* Check for invalid queue pointer */
2913        if (req == NULL ||
2914            que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2915                ql_dbg(ql_dbg_io, vha, 0x3059,
2916                    "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2917                    "que=%u.\n", sts->handle, req, que);
2918                return;
2919        }
2920
2921        /* Validate handle. */
2922        if (handle < req->num_outstanding_cmds) {
2923                sp = req->outstanding_cmds[handle];
2924                if (!sp) {
2925                        ql_dbg(ql_dbg_io, vha, 0x3075,
2926                            "%s(%ld): Already returned command for status handle (0x%x).\n",
2927                            __func__, vha->host_no, sts->handle);
2928                        return;
2929                }
2930        } else {
2931                ql_dbg(ql_dbg_io, vha, 0x3017,
2932                    "Invalid status handle, out of range (0x%x).\n",
2933                    sts->handle);
2934
2935                if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2936                        if (IS_P3P_TYPE(ha))
2937                                set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2938                        else
2939                                set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2940                        qla2xxx_wake_dpc(vha);
2941                }
2942                return;
2943        }
2944        qla_put_iocbs(sp->qpair, &sp->iores);
2945
2946        if (sp->cmd_type != TYPE_SRB) {
2947                req->outstanding_cmds[handle] = NULL;
2948                ql_dbg(ql_dbg_io, vha, 0x3015,
2949                    "Unknown sp->cmd_type %x %p).\n",
2950                    sp->cmd_type, sp);
2951                return;
2952        }
2953
2954        /* NVME completion. */
2955        if (sp->type == SRB_NVME_CMD) {
2956                req->outstanding_cmds[handle] = NULL;
2957                qla24xx_nvme_iocb_entry(vha, req, pkt, sp);
2958                return;
2959        }
2960
2961        if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2962                qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2963                return;
2964        }
2965
2966        /* Task Management completion. */
2967        if (sp->type == SRB_TM_CMD) {
2968                qla24xx_tm_iocb_entry(vha, req, pkt);
2969                return;
2970        }
2971
2972        sp->qpair->cmd_completion_cnt++;
2973
2974        /* Fast path completion. */
2975        if (comp_status == CS_COMPLETE && scsi_status == 0) {
2976                qla2x00_process_completed_request(vha, req, handle);
2977
2978                return;
2979        }
2980
2981        req->outstanding_cmds[handle] = NULL;
2982        cp = GET_CMD_SP(sp);
2983        if (cp == NULL) {
2984                ql_dbg(ql_dbg_io, vha, 0x3018,
2985                    "Command already returned (0x%x/%p).\n",
2986                    sts->handle, sp);
2987
2988                return;
2989        }
2990
2991        lscsi_status = scsi_status & STATUS_MASK;
2992
2993        fcport = sp->fcport;
2994
2995        ox_id = 0;
2996        sense_len = par_sense_len = rsp_info_len = resid_len =
2997            fw_resid_len = 0;
2998        if (IS_FWI2_CAPABLE(ha)) {
2999                if (scsi_status & SS_SENSE_LEN_VALID)
3000                        sense_len = le32_to_cpu(sts24->sense_len);
3001                if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
3002                        rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
3003                if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
3004                        resid_len = le32_to_cpu(sts24->rsp_residual_count);
3005                if (comp_status == CS_DATA_UNDERRUN)
3006                        fw_resid_len = le32_to_cpu(sts24->residual_len);
3007                rsp_info = sts24->data;
3008                sense_data = sts24->data;
3009                host_to_fcp_swap(sts24->data, sizeof(sts24->data));
3010                ox_id = le16_to_cpu(sts24->ox_id);
3011                par_sense_len = sizeof(sts24->data);
3012                sts_qual = le16_to_cpu(sts24->status_qualifier);
3013        } else {
3014                if (scsi_status & SS_SENSE_LEN_VALID)
3015                        sense_len = le16_to_cpu(sts->req_sense_length);
3016                if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
3017                        rsp_info_len = le16_to_cpu(sts->rsp_info_len);
3018                resid_len = le32_to_cpu(sts->residual_length);
3019                rsp_info = sts->rsp_info;
3020                sense_data = sts->req_sense_data;
3021                par_sense_len = sizeof(sts->req_sense_data);
3022        }
3023
3024        /* Check for any FCP transport errors. */
3025        if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
3026                /* Sense data lies beyond any FCP RESPONSE data. */
3027                if (IS_FWI2_CAPABLE(ha)) {
3028                        sense_data += rsp_info_len;
3029                        par_sense_len -= rsp_info_len;
3030                }
3031                if (rsp_info_len > 3 && rsp_info[3]) {
3032                        ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
3033                            "FCP I/O protocol failure (0x%x/0x%x).\n",
3034                            rsp_info_len, rsp_info[3]);
3035
3036                        res = DID_BUS_BUSY << 16;
3037                        goto out;
3038                }
3039        }
3040
3041        /* Check for overrun. */
3042        if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
3043            scsi_status & SS_RESIDUAL_OVER)
3044                comp_status = CS_DATA_OVERRUN;
3045
3046        /*
3047         * Check retry_delay_timer value if we receive a busy or
3048         * queue full.
3049         */
3050        if (unlikely(lscsi_status == SAM_STAT_TASK_SET_FULL ||
3051                     lscsi_status == SAM_STAT_BUSY))
3052                qla2x00_set_retry_delay_timestamp(fcport, sts_qual);
3053
3054        /*
3055         * Based on Host and scsi status generate status code for Linux
3056         */
3057        switch (comp_status) {
3058        case CS_COMPLETE:
3059        case CS_QUEUE_FULL:
3060                if (scsi_status == 0) {
3061                        res = DID_OK << 16;
3062                        break;
3063                }
3064                if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
3065                        resid = resid_len;
3066                        scsi_set_resid(cp, resid);
3067
3068                        if (!lscsi_status &&
3069                            ((unsigned)(scsi_bufflen(cp) - resid) <
3070                             cp->underflow)) {
3071                                ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
3072                                    "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3073                                    resid, scsi_bufflen(cp));
3074
3075                                res = DID_ERROR << 16;
3076                                break;
3077                        }
3078                }
3079                res = DID_OK << 16 | lscsi_status;
3080
3081                if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3082                        ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
3083                            "QUEUE FULL detected.\n");
3084                        break;
3085                }
3086                logit = 0;
3087                if (lscsi_status != SS_CHECK_CONDITION)
3088                        break;
3089
3090                memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3091                if (!(scsi_status & SS_SENSE_LEN_VALID))
3092                        break;
3093
3094                qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
3095                    rsp, res);
3096                break;
3097
3098        case CS_DATA_UNDERRUN:
3099                /* Use F/W calculated residual length. */
3100                resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
3101                scsi_set_resid(cp, resid);
3102                if (scsi_status & SS_RESIDUAL_UNDER) {
3103                        if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
3104                                ql_log(ql_log_warn, fcport->vha, 0x301d,
3105                                       "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3106                                       resid, scsi_bufflen(cp));
3107
3108                                vha->interface_err_cnt++;
3109
3110                                res = DID_ERROR << 16 | lscsi_status;
3111                                goto check_scsi_status;
3112                        }
3113
3114                        if (!lscsi_status &&
3115                            ((unsigned)(scsi_bufflen(cp) - resid) <
3116                            cp->underflow)) {
3117                                ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
3118                                    "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3119                                    resid, scsi_bufflen(cp));
3120
3121                                res = DID_ERROR << 16;
3122                                break;
3123                        }
3124                } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
3125                            lscsi_status != SAM_STAT_BUSY) {
3126                        /*
3127                         * scsi status of task set and busy are considered to be
3128                         * task not completed.
3129                         */
3130
3131                        ql_log(ql_log_warn, fcport->vha, 0x301f,
3132                               "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3133                               resid, scsi_bufflen(cp));
3134
3135                        vha->interface_err_cnt++;
3136
3137                        res = DID_ERROR << 16 | lscsi_status;
3138                        goto check_scsi_status;
3139                } else {
3140                        ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
3141                            "scsi_status: 0x%x, lscsi_status: 0x%x\n",
3142                            scsi_status, lscsi_status);
3143                }
3144
3145                res = DID_OK << 16 | lscsi_status;
3146                logit = 0;
3147
3148check_scsi_status:
3149                /*
3150                 * Check to see if SCSI Status is non zero. If so report SCSI
3151                 * Status.
3152                 */
3153                if (lscsi_status != 0) {
3154                        if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3155                                ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
3156                                    "QUEUE FULL detected.\n");
3157                                logit = 1;
3158                                break;
3159                        }
3160                        if (lscsi_status != SS_CHECK_CONDITION)
3161                                break;
3162
3163                        memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3164                        if (!(scsi_status & SS_SENSE_LEN_VALID))
3165                                break;
3166
3167                        qla2x00_handle_sense(sp, sense_data, par_sense_len,
3168                            sense_len, rsp, res);
3169                }
3170                break;
3171
3172        case CS_PORT_LOGGED_OUT:
3173        case CS_PORT_CONFIG_CHG:
3174        case CS_PORT_BUSY:
3175        case CS_INCOMPLETE:
3176        case CS_PORT_UNAVAILABLE:
3177        case CS_TIMEOUT:
3178        case CS_RESET:
3179
3180                /*
3181                 * We are going to have the fc class block the rport
3182                 * while we try to recover so instruct the mid layer
3183                 * to requeue until the class decides how to handle this.
3184                 */
3185                res = DID_TRANSPORT_DISRUPTED << 16;
3186
3187                if (comp_status == CS_TIMEOUT) {
3188                        if (IS_FWI2_CAPABLE(ha))
3189                                break;
3190                        else if ((le16_to_cpu(sts->status_flags) &
3191                            SF_LOGOUT_SENT) == 0)
3192                                break;
3193                }
3194
3195                if (atomic_read(&fcport->state) == FCS_ONLINE) {
3196                        ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
3197                                "Port to be marked lost on fcport=%02x%02x%02x, current "
3198                                "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
3199                                fcport->d_id.b.area, fcport->d_id.b.al_pa,
3200                                port_state_str[FCS_ONLINE],
3201                                comp_status);
3202
3203                        qlt_schedule_sess_for_deletion(fcport);
3204                }
3205
3206                break;
3207
3208        case CS_ABORTED:
3209                res = DID_RESET << 16;
3210                break;
3211
3212        case CS_DIF_ERROR:
3213                logit = qla2x00_handle_dif_error(sp, sts24);
3214                res = cp->result;
3215                break;
3216
3217        case CS_TRANSPORT:
3218                res = DID_ERROR << 16;
3219                vha->hw_err_cnt++;
3220
3221                if (!IS_PI_SPLIT_DET_CAPABLE(ha))
3222                        break;
3223
3224                if (state_flags & BIT_4)
3225                        scmd_printk(KERN_WARNING, cp,
3226                            "Unsupported device '%s' found.\n",
3227                            cp->device->vendor);
3228                break;
3229
3230        case CS_DMA:
3231                ql_log(ql_log_info, fcport->vha, 0x3022,
3232                    "CS_DMA error: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%06x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3233                    comp_status, scsi_status, res, vha->host_no,
3234                    cp->device->id, cp->device->lun, fcport->d_id.b24,
3235                    ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3236                    resid_len, fw_resid_len, sp, cp);
3237                ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
3238                    pkt, sizeof(*sts24));
3239                res = DID_ERROR << 16;
3240                vha->hw_err_cnt++;
3241                break;
3242        default:
3243                res = DID_ERROR << 16;
3244                break;
3245        }
3246
3247out:
3248        if (logit)
3249                ql_log(ql_log_warn, fcport->vha, 0x3022,
3250                       "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3251                       comp_status, scsi_status, res, vha->host_no,
3252                       cp->device->id, cp->device->lun, fcport->d_id.b.domain,
3253                       fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
3254                       cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3255                       resid_len, fw_resid_len, sp, cp);
3256
3257        if (rsp->status_srb == NULL)
3258                sp->done(sp, res);
3259}
3260
3261/**
3262 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
3263 * @rsp: response queue
3264 * @pkt: Entry pointer
3265 *
3266 * Extended sense data.
3267 */
3268static void
3269qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
3270{
3271        uint8_t sense_sz = 0;
3272        struct qla_hw_data *ha = rsp->hw;
3273        struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
3274        srb_t *sp = rsp->status_srb;
3275        struct scsi_cmnd *cp;
3276        uint32_t sense_len;
3277        uint8_t *sense_ptr;
3278
3279        if (!sp || !GET_CMD_SENSE_LEN(sp))
3280                return;
3281
3282        sense_len = GET_CMD_SENSE_LEN(sp);
3283        sense_ptr = GET_CMD_SENSE_PTR(sp);
3284
3285        cp = GET_CMD_SP(sp);
3286        if (cp == NULL) {
3287                ql_log(ql_log_warn, vha, 0x3025,
3288                    "cmd is NULL: already returned to OS (sp=%p).\n", sp);
3289
3290                rsp->status_srb = NULL;
3291                return;
3292        }
3293
3294        if (sense_len > sizeof(pkt->data))
3295                sense_sz = sizeof(pkt->data);
3296        else
3297                sense_sz = sense_len;
3298
3299        /* Move sense data. */
3300        if (IS_FWI2_CAPABLE(ha))
3301                host_to_fcp_swap(pkt->data, sizeof(pkt->data));
3302        memcpy(sense_ptr, pkt->data, sense_sz);
3303        ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
3304                sense_ptr, sense_sz);
3305
3306        sense_len -= sense_sz;
3307        sense_ptr += sense_sz;
3308
3309        SET_CMD_SENSE_PTR(sp, sense_ptr);
3310        SET_CMD_SENSE_LEN(sp, sense_len);
3311
3312        /* Place command on done queue. */
3313        if (sense_len == 0) {
3314                rsp->status_srb = NULL;
3315                sp->done(sp, cp->result);
3316        }
3317}
3318
3319/**
3320 * qla2x00_error_entry() - Process an error entry.
3321 * @vha: SCSI driver HA context
3322 * @rsp: response queue
3323 * @pkt: Entry pointer
3324 * return : 1=allow further error analysis. 0=no additional error analysis.
3325 */
3326static int
3327qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
3328{
3329        srb_t *sp;
3330        struct qla_hw_data *ha = vha->hw;
3331        const char func[] = "ERROR-IOCB";
3332        uint16_t que = MSW(pkt->handle);
3333        struct req_que *req = NULL;
3334        int res = DID_ERROR << 16;
3335
3336        ql_dbg(ql_dbg_async, vha, 0x502a,
3337            "iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
3338            pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
3339
3340        if (que >= ha->max_req_queues || !ha->req_q_map[que])
3341                goto fatal;
3342
3343        req = ha->req_q_map[que];
3344
3345        if (pkt->entry_status & RF_BUSY)
3346                res = DID_BUS_BUSY << 16;
3347
3348        if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
3349                return 0;
3350
3351        switch (pkt->entry_type) {
3352        case NOTIFY_ACK_TYPE:
3353        case STATUS_TYPE:
3354        case STATUS_CONT_TYPE:
3355        case LOGINOUT_PORT_IOCB_TYPE:
3356        case CT_IOCB_TYPE:
3357        case ELS_IOCB_TYPE:
3358        case ABORT_IOCB_TYPE:
3359        case MBX_IOCB_TYPE:
3360        default:
3361                sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3362                if (sp) {
3363                        qla_put_iocbs(sp->qpair, &sp->iores);
3364                        sp->done(sp, res);
3365                        return 0;
3366                }
3367                break;
3368
3369        case ABTS_RESP_24XX:
3370        case CTIO_TYPE7:
3371        case CTIO_CRC2:
3372                return 1;
3373        }
3374fatal:
3375        ql_log(ql_log_warn, vha, 0x5030,
3376            "Error entry - invalid handle/queue (%04x).\n", que);
3377        return 0;
3378}
3379
3380/**
3381 * qla24xx_mbx_completion() - Process mailbox command completions.
3382 * @vha: SCSI driver HA context
3383 * @mb0: Mailbox0 register
3384 */
3385static void
3386qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
3387{
3388        uint16_t        cnt;
3389        uint32_t        mboxes;
3390        __le16 __iomem *wptr;
3391        struct qla_hw_data *ha = vha->hw;
3392        struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3393
3394        /* Read all mbox registers? */
3395        WARN_ON_ONCE(ha->mbx_count > 32);
3396        mboxes = (1ULL << ha->mbx_count) - 1;
3397        if (!ha->mcp)
3398                ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
3399        else
3400                mboxes = ha->mcp->in_mb;
3401
3402        /* Load return mailbox registers. */
3403        ha->flags.mbox_int = 1;
3404        ha->mailbox_out[0] = mb0;
3405        mboxes >>= 1;
3406        wptr = &reg->mailbox1;
3407
3408        for (cnt = 1; cnt < ha->mbx_count; cnt++) {
3409                if (mboxes & BIT_0)
3410                        ha->mailbox_out[cnt] = rd_reg_word(wptr);
3411
3412                mboxes >>= 1;
3413                wptr++;
3414        }
3415}
3416
3417static void
3418qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
3419        struct abort_entry_24xx *pkt)
3420{
3421        const char func[] = "ABT_IOCB";
3422        srb_t *sp;
3423        srb_t *orig_sp = NULL;
3424        struct srb_iocb *abt;
3425
3426        sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3427        if (!sp)
3428                return;
3429
3430        abt = &sp->u.iocb_cmd;
3431        abt->u.abt.comp_status = pkt->comp_status;
3432        orig_sp = sp->cmd_sp;
3433        /* Need to pass original sp */
3434        if (orig_sp)
3435                qla_nvme_abort_process_comp_status(pkt, orig_sp);
3436
3437        sp->done(sp, 0);
3438}
3439
3440void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
3441    struct pt_ls4_request *pkt, struct req_que *req)
3442{
3443        srb_t *sp;
3444        const char func[] = "LS4_IOCB";
3445        uint16_t comp_status;
3446
3447        sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3448        if (!sp)
3449                return;
3450
3451        comp_status = le16_to_cpu(pkt->status);
3452        sp->done(sp, comp_status);
3453}
3454
3455/**
3456 * qla24xx_process_response_queue() - Process response queue entries.
3457 * @vha: SCSI driver HA context
3458 * @rsp: response queue
3459 */
3460void qla24xx_process_response_queue(struct scsi_qla_host *vha,
3461        struct rsp_que *rsp)
3462{
3463        struct sts_entry_24xx *pkt;
3464        struct qla_hw_data *ha = vha->hw;
3465        struct purex_entry_24xx *purex_entry;
3466        struct purex_item *pure_item;
3467
3468        if (!ha->flags.fw_started)
3469                return;
3470
3471        if (rsp->qpair->cpuid != smp_processor_id() || !rsp->qpair->rcv_intr) {
3472                rsp->qpair->rcv_intr = 1;
3473                qla_cpu_update(rsp->qpair, smp_processor_id());
3474        }
3475
3476        while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
3477                pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
3478
3479                rsp->ring_index++;
3480                if (rsp->ring_index == rsp->length) {
3481                        rsp->ring_index = 0;
3482                        rsp->ring_ptr = rsp->ring;
3483                } else {
3484                        rsp->ring_ptr++;
3485                }
3486
3487                if (pkt->entry_status != 0) {
3488                        if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
3489                                goto process_err;
3490
3491                        ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3492                        wmb();
3493                        continue;
3494                }
3495process_err:
3496
3497                switch (pkt->entry_type) {
3498                case STATUS_TYPE:
3499                        qla2x00_status_entry(vha, rsp, pkt);
3500                        break;
3501                case STATUS_CONT_TYPE:
3502                        qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
3503                        break;
3504                case VP_RPT_ID_IOCB_TYPE:
3505                        qla24xx_report_id_acquisition(vha,
3506                            (struct vp_rpt_id_entry_24xx *)pkt);
3507                        break;
3508                case LOGINOUT_PORT_IOCB_TYPE:
3509                        qla24xx_logio_entry(vha, rsp->req,
3510                            (struct logio_entry_24xx *)pkt);
3511                        break;
3512                case CT_IOCB_TYPE:
3513                        qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
3514                        break;
3515                case ELS_IOCB_TYPE:
3516                        qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
3517                        break;
3518                case ABTS_RECV_24XX:
3519                        if (qla_ini_mode_enabled(vha)) {
3520                                pure_item = qla24xx_copy_std_pkt(vha, pkt);
3521                                if (!pure_item)
3522                                        break;
3523                                qla24xx_queue_purex_item(vha, pure_item,
3524                                                         qla24xx_process_abts);
3525                                break;
3526                        }
3527                        if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3528                            IS_QLA28XX(ha)) {
3529                                /* ensure that the ATIO queue is empty */
3530                                qlt_handle_abts_recv(vha, rsp,
3531                                    (response_t *)pkt);
3532                                break;
3533                        } else {
3534                                qlt_24xx_process_atio_queue(vha, 1);
3535                        }
3536                        fallthrough;
3537                case ABTS_RESP_24XX:
3538                case CTIO_TYPE7:
3539                case CTIO_CRC2:
3540                        qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
3541                        break;
3542                case PT_LS4_REQUEST:
3543                        qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
3544                            rsp->req);
3545                        break;
3546                case NOTIFY_ACK_TYPE:
3547                        if (pkt->handle == QLA_TGT_SKIP_HANDLE)
3548                                qlt_response_pkt_all_vps(vha, rsp,
3549                                    (response_t *)pkt);
3550                        else
3551                                qla24xxx_nack_iocb_entry(vha, rsp->req,
3552                                        (struct nack_to_isp *)pkt);
3553                        break;
3554                case MARKER_TYPE:
3555                        /* Do nothing in this case, this check is to prevent it
3556                         * from falling into default case
3557                         */
3558                        break;
3559                case ABORT_IOCB_TYPE:
3560                        qla24xx_abort_iocb_entry(vha, rsp->req,
3561                            (struct abort_entry_24xx *)pkt);
3562                        break;
3563                case MBX_IOCB_TYPE:
3564                        qla24xx_mbx_iocb_entry(vha, rsp->req,
3565                            (struct mbx_24xx_entry *)pkt);
3566                        break;
3567                case VP_CTRL_IOCB_TYPE:
3568                        qla_ctrlvp_completed(vha, rsp->req,
3569                            (struct vp_ctrl_entry_24xx *)pkt);
3570                        break;
3571                case PUREX_IOCB_TYPE:
3572                        purex_entry = (void *)pkt;
3573                        switch (purex_entry->els_frame_payload[3]) {
3574                        case ELS_RDP:
3575                                pure_item = qla24xx_copy_std_pkt(vha, pkt);
3576                                if (!pure_item)
3577                                        break;
3578                                qla24xx_queue_purex_item(vha, pure_item,
3579                                                 qla24xx_process_purex_rdp);
3580                                break;
3581                        case ELS_FPIN:
3582                                if (!vha->hw->flags.scm_enabled) {
3583                                        ql_log(ql_log_warn, vha, 0x5094,
3584                                               "SCM not active for this port\n");
3585                                        break;
3586                                }
3587                                pure_item = qla27xx_copy_fpin_pkt(vha,
3588                                                          (void **)&pkt, &rsp);
3589                                if (!pure_item)
3590                                        break;
3591                                qla24xx_queue_purex_item(vha, pure_item,
3592                                                 qla27xx_process_purex_fpin);
3593                                break;
3594
3595                        default:
3596                                ql_log(ql_log_warn, vha, 0x509c,
3597                                       "Discarding ELS Request opcode 0x%x\n",
3598                                       purex_entry->els_frame_payload[3]);
3599                        }
3600                        break;
3601                default:
3602                        /* Type Not Supported. */
3603                        ql_dbg(ql_dbg_async, vha, 0x5042,
3604                               "Received unknown response pkt type 0x%x entry status=%x.\n",
3605                               pkt->entry_type, pkt->entry_status);
3606                        break;
3607                }
3608                ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3609                wmb();
3610        }
3611
3612        /* Adjust ring index */
3613        if (IS_P3P_TYPE(ha)) {
3614                struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
3615
3616                wrt_reg_dword(&reg->rsp_q_out[0], rsp->ring_index);
3617        } else {
3618                wrt_reg_dword(rsp->rsp_q_out, rsp->ring_index);
3619        }
3620}
3621
3622static void
3623qla2xxx_check_risc_status(scsi_qla_host_t *vha)
3624{
3625        int rval;
3626        uint32_t cnt;
3627        struct qla_hw_data *ha = vha->hw;
3628        struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3629
3630        if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3631            !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3632                return;
3633
3634        rval = QLA_SUCCESS;
3635        wrt_reg_dword(&reg->iobase_addr, 0x7C00);
3636        rd_reg_dword(&reg->iobase_addr);
3637        wrt_reg_dword(&reg->iobase_window, 0x0001);
3638        for (cnt = 10000; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3639            rval == QLA_SUCCESS; cnt--) {
3640                if (cnt) {
3641                        wrt_reg_dword(&reg->iobase_window, 0x0001);
3642                        udelay(10);
3643                } else
3644                        rval = QLA_FUNCTION_TIMEOUT;
3645        }
3646        if (rval == QLA_SUCCESS)
3647                goto next_test;
3648
3649        rval = QLA_SUCCESS;
3650        wrt_reg_dword(&reg->iobase_window, 0x0003);
3651        for (cnt = 100; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3652            rval == QLA_SUCCESS; cnt--) {
3653                if (cnt) {
3654                        wrt_reg_dword(&reg->iobase_window, 0x0003);
3655                        udelay(10);
3656                } else
3657                        rval = QLA_FUNCTION_TIMEOUT;
3658        }
3659        if (rval != QLA_SUCCESS)
3660                goto done;
3661
3662next_test:
3663        if (rd_reg_dword(&reg->iobase_c8) & BIT_3)
3664                ql_log(ql_log_info, vha, 0x504c,
3665                    "Additional code -- 0x55AA.\n");
3666
3667done:
3668        wrt_reg_dword(&reg->iobase_window, 0x0000);
3669        rd_reg_dword(&reg->iobase_window);
3670}
3671
3672/**
3673 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
3674 * @irq: interrupt number
3675 * @dev_id: SCSI driver HA context
3676 *
3677 * Called by system whenever the host adapter generates an interrupt.
3678 *
3679 * Returns handled flag.
3680 */
3681irqreturn_t
3682qla24xx_intr_handler(int irq, void *dev_id)
3683{
3684        scsi_qla_host_t *vha;
3685        struct qla_hw_data *ha;
3686        struct device_reg_24xx __iomem *reg;
3687        int             status;
3688        unsigned long   iter;
3689        uint32_t        stat;
3690        uint32_t        hccr;
3691        uint16_t        mb[8];
3692        struct rsp_que *rsp;
3693        unsigned long   flags;
3694        bool process_atio = false;
3695
3696        rsp = (struct rsp_que *) dev_id;
3697        if (!rsp) {
3698                ql_log(ql_log_info, NULL, 0x5059,
3699                    "%s: NULL response queue pointer.\n", __func__);
3700                return IRQ_NONE;
3701        }
3702
3703        ha = rsp->hw;
3704        reg = &ha->iobase->isp24;
3705        status = 0;
3706
3707        if (unlikely(pci_channel_offline(ha->pdev)))
3708                return IRQ_HANDLED;
3709
3710        spin_lock_irqsave(&ha->hardware_lock, flags);
3711        vha = pci_get_drvdata(ha->pdev);
3712        for (iter = 50; iter--; ) {
3713                stat = rd_reg_dword(&reg->host_status);
3714                if (qla2x00_check_reg32_for_disconnect(vha, stat))
3715                        break;
3716                if (stat & HSRX_RISC_PAUSED) {
3717                        if (unlikely(pci_channel_offline(ha->pdev)))
3718                                break;
3719
3720                        hccr = rd_reg_dword(&reg->hccr);
3721
3722                        ql_log(ql_log_warn, vha, 0x504b,
3723                            "RISC paused -- HCCR=%x, Dumping firmware.\n",
3724                            hccr);
3725
3726                        qla2xxx_check_risc_status(vha);
3727
3728                        ha->isp_ops->fw_dump(vha);
3729                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3730                        break;
3731                } else if ((stat & HSRX_RISC_INT) == 0)
3732                        break;
3733
3734                switch (stat & 0xff) {
3735                case INTR_ROM_MB_SUCCESS:
3736                case INTR_ROM_MB_FAILED:
3737                case INTR_MB_SUCCESS:
3738                case INTR_MB_FAILED:
3739                        qla24xx_mbx_completion(vha, MSW(stat));
3740                        status |= MBX_INTERRUPT;
3741
3742                        break;
3743                case INTR_ASYNC_EVENT:
3744                        mb[0] = MSW(stat);
3745                        mb[1] = rd_reg_word(&reg->mailbox1);
3746                        mb[2] = rd_reg_word(&reg->mailbox2);
3747                        mb[3] = rd_reg_word(&reg->mailbox3);
3748                        qla2x00_async_event(vha, rsp, mb);
3749                        break;
3750                case INTR_RSP_QUE_UPDATE:
3751                case INTR_RSP_QUE_UPDATE_83XX:
3752                        qla24xx_process_response_queue(vha, rsp);
3753                        break;
3754                case INTR_ATIO_QUE_UPDATE_27XX:
3755                case INTR_ATIO_QUE_UPDATE:
3756                        process_atio = true;
3757                        break;
3758                case INTR_ATIO_RSP_QUE_UPDATE:
3759                        process_atio = true;
3760                        qla24xx_process_response_queue(vha, rsp);
3761                        break;
3762                default:
3763                        ql_dbg(ql_dbg_async, vha, 0x504f,
3764                            "Unrecognized interrupt type (%d).\n", stat * 0xff);
3765                        break;
3766                }
3767                wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3768                rd_reg_dword_relaxed(&reg->hccr);
3769                if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
3770                        ndelay(3500);
3771        }
3772        qla2x00_handle_mbx_completion(ha, status);
3773        spin_unlock_irqrestore(&ha->hardware_lock, flags);
3774
3775        if (process_atio) {
3776                spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3777                qlt_24xx_process_atio_queue(vha, 0);
3778                spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3779        }
3780
3781        return IRQ_HANDLED;
3782}
3783
3784static irqreturn_t
3785qla24xx_msix_rsp_q(int irq, void *dev_id)
3786{
3787        struct qla_hw_data *ha;
3788        struct rsp_que *rsp;
3789        struct device_reg_24xx __iomem *reg;
3790        struct scsi_qla_host *vha;
3791        unsigned long flags;
3792
3793        rsp = (struct rsp_que *) dev_id;
3794        if (!rsp) {
3795                ql_log(ql_log_info, NULL, 0x505a,
3796                    "%s: NULL response queue pointer.\n", __func__);
3797                return IRQ_NONE;
3798        }
3799        ha = rsp->hw;
3800        reg = &ha->iobase->isp24;
3801
3802        spin_lock_irqsave(&ha->hardware_lock, flags);
3803
3804        vha = pci_get_drvdata(ha->pdev);
3805        qla24xx_process_response_queue(vha, rsp);
3806        if (!ha->flags.disable_msix_handshake) {
3807                wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3808                rd_reg_dword_relaxed(&reg->hccr);
3809        }
3810        spin_unlock_irqrestore(&ha->hardware_lock, flags);
3811
3812        return IRQ_HANDLED;
3813}
3814
3815static irqreturn_t
3816qla24xx_msix_default(int irq, void *dev_id)
3817{
3818        scsi_qla_host_t *vha;
3819        struct qla_hw_data *ha;
3820        struct rsp_que *rsp;
3821        struct device_reg_24xx __iomem *reg;
3822        int             status;
3823        uint32_t        stat;
3824        uint32_t        hccr;
3825        uint16_t        mb[8];
3826        unsigned long flags;
3827        bool process_atio = false;
3828
3829        rsp = (struct rsp_que *) dev_id;
3830        if (!rsp) {
3831                ql_log(ql_log_info, NULL, 0x505c,
3832                    "%s: NULL response queue pointer.\n", __func__);
3833                return IRQ_NONE;
3834        }
3835        ha = rsp->hw;
3836        reg = &ha->iobase->isp24;
3837        status = 0;
3838
3839        spin_lock_irqsave(&ha->hardware_lock, flags);
3840        vha = pci_get_drvdata(ha->pdev);
3841        do {
3842                stat = rd_reg_dword(&reg->host_status);
3843                if (qla2x00_check_reg32_for_disconnect(vha, stat))
3844                        break;
3845                if (stat & HSRX_RISC_PAUSED) {
3846                        if (unlikely(pci_channel_offline(ha->pdev)))
3847                                break;
3848
3849                        hccr = rd_reg_dword(&reg->hccr);
3850
3851                        ql_log(ql_log_info, vha, 0x5050,
3852                            "RISC paused -- HCCR=%x, Dumping firmware.\n",
3853                            hccr);
3854
3855                        qla2xxx_check_risc_status(vha);
3856                        vha->hw_err_cnt++;
3857
3858                        ha->isp_ops->fw_dump(vha);
3859                        set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3860                        break;
3861                } else if ((stat & HSRX_RISC_INT) == 0)
3862                        break;
3863
3864                switch (stat & 0xff) {
3865                case INTR_ROM_MB_SUCCESS:
3866                case INTR_ROM_MB_FAILED:
3867                case INTR_MB_SUCCESS:
3868                case INTR_MB_FAILED:
3869                        qla24xx_mbx_completion(vha, MSW(stat));
3870                        status |= MBX_INTERRUPT;
3871
3872                        break;
3873                case INTR_ASYNC_EVENT:
3874                        mb[0] = MSW(stat);
3875                        mb[1] = rd_reg_word(&reg->mailbox1);
3876                        mb[2] = rd_reg_word(&reg->mailbox2);
3877                        mb[3] = rd_reg_word(&reg->mailbox3);
3878                        qla2x00_async_event(vha, rsp, mb);
3879                        break;
3880                case INTR_RSP_QUE_UPDATE:
3881                case INTR_RSP_QUE_UPDATE_83XX:
3882                        qla24xx_process_response_queue(vha, rsp);
3883                        break;
3884                case INTR_ATIO_QUE_UPDATE_27XX:
3885                case INTR_ATIO_QUE_UPDATE:
3886                        process_atio = true;
3887                        break;
3888                case INTR_ATIO_RSP_QUE_UPDATE:
3889                        process_atio = true;
3890                        qla24xx_process_response_queue(vha, rsp);
3891                        break;
3892                default:
3893                        ql_dbg(ql_dbg_async, vha, 0x5051,
3894                            "Unrecognized interrupt type (%d).\n", stat & 0xff);
3895                        break;
3896                }
3897                wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3898        } while (0);
3899        qla2x00_handle_mbx_completion(ha, status);
3900        spin_unlock_irqrestore(&ha->hardware_lock, flags);
3901
3902        if (process_atio) {
3903                spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3904                qlt_24xx_process_atio_queue(vha, 0);
3905                spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3906        }
3907
3908        return IRQ_HANDLED;
3909}
3910
3911irqreturn_t
3912qla2xxx_msix_rsp_q(int irq, void *dev_id)
3913{
3914        struct qla_hw_data *ha;
3915        struct qla_qpair *qpair;
3916
3917        qpair = dev_id;
3918        if (!qpair) {
3919                ql_log(ql_log_info, NULL, 0x505b,
3920                    "%s: NULL response queue pointer.\n", __func__);
3921                return IRQ_NONE;
3922        }
3923        ha = qpair->hw;
3924
3925        queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
3926
3927        return IRQ_HANDLED;
3928}
3929
3930irqreturn_t
3931qla2xxx_msix_rsp_q_hs(int irq, void *dev_id)
3932{
3933        struct qla_hw_data *ha;
3934        struct qla_qpair *qpair;
3935        struct device_reg_24xx __iomem *reg;
3936        unsigned long flags;
3937
3938        qpair = dev_id;
3939        if (!qpair) {
3940                ql_log(ql_log_info, NULL, 0x505b,
3941                    "%s: NULL response queue pointer.\n", __func__);
3942                return IRQ_NONE;
3943        }
3944        ha = qpair->hw;
3945
3946        reg = &ha->iobase->isp24;
3947        spin_lock_irqsave(&ha->hardware_lock, flags);
3948        wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3949        spin_unlock_irqrestore(&ha->hardware_lock, flags);
3950
3951        queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
3952
3953        return IRQ_HANDLED;
3954}
3955
3956/* Interrupt handling helpers. */
3957
3958struct qla_init_msix_entry {
3959        const char *name;
3960        irq_handler_t handler;
3961};
3962
3963static const struct qla_init_msix_entry msix_entries[] = {
3964        { "default", qla24xx_msix_default },
3965        { "rsp_q", qla24xx_msix_rsp_q },
3966        { "atio_q", qla83xx_msix_atio_q },
3967        { "qpair_multiq", qla2xxx_msix_rsp_q },
3968        { "qpair_multiq_hs", qla2xxx_msix_rsp_q_hs },
3969};
3970
3971static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
3972        { "qla2xxx (default)", qla82xx_msix_default },
3973        { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3974};
3975
3976static int
3977qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3978{
3979        int i, ret;
3980        struct qla_msix_entry *qentry;
3981        scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3982        int min_vecs = QLA_BASE_VECTORS;
3983        struct irq_affinity desc = {
3984                .pre_vectors = QLA_BASE_VECTORS,
3985        };
3986
3987        if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
3988            IS_ATIO_MSIX_CAPABLE(ha)) {
3989                desc.pre_vectors++;
3990                min_vecs++;
3991        }
3992
3993        if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
3994                /* user wants to control IRQ setting for target mode */
3995                ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
3996                    min((u16)ha->msix_count, (u16)(num_online_cpus() + min_vecs)),
3997                    PCI_IRQ_MSIX);
3998        } else
3999                ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
4000                    min((u16)ha->msix_count, (u16)(num_online_cpus() + min_vecs)),
4001                    PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
4002                    &desc);
4003
4004        if (ret < 0) {
4005                ql_log(ql_log_fatal, vha, 0x00c7,
4006                    "MSI-X: Failed to enable support, "
4007                    "giving   up -- %d/%d.\n",
4008                    ha->msix_count, ret);
4009                goto msix_out;
4010        } else if (ret < ha->msix_count) {
4011                ql_log(ql_log_info, vha, 0x00c6,
4012                    "MSI-X: Using %d vectors\n", ret);
4013                ha->msix_count = ret;
4014                /* Recalculate queue values */
4015                if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
4016                        ha->max_req_queues = ha->msix_count - 1;
4017
4018                        /* ATIOQ needs 1 vector. That's 1 less QPair */
4019                        if (QLA_TGT_MODE_ENABLED())
4020                                ha->max_req_queues--;
4021
4022                        ha->max_rsp_queues = ha->max_req_queues;
4023
4024                        ha->max_qpairs = ha->max_req_queues - 1;
4025                        ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
4026                            "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
4027                }
4028        }
4029        vha->irq_offset = desc.pre_vectors;
4030        ha->msix_entries = kcalloc(ha->msix_count,
4031                                   sizeof(struct qla_msix_entry),
4032                                   GFP_KERNEL);
4033        if (!ha->msix_entries) {
4034                ql_log(ql_log_fatal, vha, 0x00c8,
4035                    "Failed to allocate memory for ha->msix_entries.\n");
4036                ret = -ENOMEM;
4037                goto free_irqs;
4038        }
4039        ha->flags.msix_enabled = 1;
4040
4041        for (i = 0; i < ha->msix_count; i++) {
4042                qentry = &ha->msix_entries[i];
4043                qentry->vector = pci_irq_vector(ha->pdev, i);
4044                qentry->entry = i;
4045                qentry->have_irq = 0;
4046                qentry->in_use = 0;
4047                qentry->handle = NULL;
4048        }
4049
4050        /* Enable MSI-X vectors for the base queue */
4051        for (i = 0; i < QLA_BASE_VECTORS; i++) {
4052                qentry = &ha->msix_entries[i];
4053                qentry->handle = rsp;
4054                rsp->msix = qentry;
4055                scnprintf(qentry->name, sizeof(qentry->name),
4056                    "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
4057                if (IS_P3P_TYPE(ha))
4058                        ret = request_irq(qentry->vector,
4059                                qla82xx_msix_entries[i].handler,
4060                                0, qla82xx_msix_entries[i].name, rsp);
4061                else
4062                        ret = request_irq(qentry->vector,
4063                                msix_entries[i].handler,
4064                                0, qentry->name, rsp);
4065                if (ret)
4066                        goto msix_register_fail;
4067                qentry->have_irq = 1;
4068                qentry->in_use = 1;
4069        }
4070
4071        /*
4072         * If target mode is enable, also request the vector for the ATIO
4073         * queue.
4074         */
4075        if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
4076            IS_ATIO_MSIX_CAPABLE(ha)) {
4077                qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
4078                rsp->msix = qentry;
4079                qentry->handle = rsp;
4080                scnprintf(qentry->name, sizeof(qentry->name),
4081                    "qla2xxx%lu_%s", vha->host_no,
4082                    msix_entries[QLA_ATIO_VECTOR].name);
4083                qentry->in_use = 1;
4084                ret = request_irq(qentry->vector,
4085                        msix_entries[QLA_ATIO_VECTOR].handler,
4086                        0, qentry->name, rsp);
4087                qentry->have_irq = 1;
4088        }
4089
4090msix_register_fail:
4091        if (ret) {
4092                ql_log(ql_log_fatal, vha, 0x00cb,
4093                    "MSI-X: unable to register handler -- %x/%d.\n",
4094                    qentry->vector, ret);
4095                qla2x00_free_irqs(vha);
4096                ha->mqenable = 0;
4097                goto msix_out;
4098        }
4099
4100        /* Enable MSI-X vector for response queue update for queue 0 */
4101        if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
4102                if (ha->msixbase && ha->mqiobase &&
4103                    (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
4104                     ql2xmqsupport))