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author | Joe Carnuccio <joe.carnuccio@cavium.com> | 2020-02-12 13:44:24 -0800 |
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committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-02-24 12:34:28 -0500 |
commit | 576bfde80b28232a1dfcf0466986ed2934146d0a (patch) | |
tree | eab749f4682ccd3f487a1446324ae8ac5101be8d /drivers/scsi/qla2xxx/qla_isr.c | |
parent | 09e382bc3dd946cfee74044d18d1886567874300 (diff) | |
download | linux-576bfde80b28232a1dfcf0466986ed2934146d0a.tar.gz linux-576bfde80b28232a1dfcf0466986ed2934146d0a.tar.bz2 linux-576bfde80b28232a1dfcf0466986ed2934146d0a.zip |
scsi: qla2xxx: Add deferred queue for processing ABTS and RDP
This patch adds deferred queue for processing aborts and RDP in the driver.
Link: https://lore.kernel.org/r/20200212214436.25532-14-hmadhani@marvell.com
Signed-off-by: Joe Carnuccio <joe.carnuccio@cavium.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_isr.c')
-rw-r--r-- | drivers/scsi/qla2xxx/qla_isr.c | 154 |
1 files changed, 150 insertions, 4 deletions
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 19daac087ddb..cb40261158c9 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -31,13 +31,144 @@ const char *const port_state_str[] = { "ONLINE" }; -static void qla24xx_purex_iocb(scsi_qla_host_t *vha, struct req_que *req, - struct sts_entry_24xx *pkt) +static void qla24xx_purex_iocb(scsi_qla_host_t *vha, void *pkt, + void (*process_item)(struct scsi_qla_host *vha, void *pkt)) { - memcpy(vha->purex_data, pkt, PUREX_ENTRY_SIZE); + struct purex_list *list = &vha->purex_list; + struct purex_item *item; + ulong flags; + + item = kzalloc(sizeof(*item), GFP_KERNEL); + if (!item) { + ql_log(ql_log_warn, vha, 0x5092, + ">> Failed allocate purex list item.\n"); + return; + } + + item->vha = vha; + item->process_item = process_item; + memcpy(&item->iocb, pkt, sizeof(item->iocb)); + + spin_lock_irqsave(&list->lock, flags); + list_add_tail(&item->list, &list->head); + spin_unlock_irqrestore(&list->lock, flags); + set_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags); } +static void +qla24xx_process_abts(struct scsi_qla_host *vha, void *pkt) +{ + struct abts_entry_24xx *abts = pkt; + struct qla_hw_data *ha = vha->hw; + struct els_entry_24xx *rsp_els; + struct abts_entry_24xx *abts_rsp; + dma_addr_t dma; + uint32_t fctl; + int rval; + + ql_dbg(ql_dbg_init, vha, 0x0286, "%s: entered.\n", __func__); + + ql_log(ql_log_warn, vha, 0x0287, + "Processing ABTS xchg=%#x oxid=%#x rxid=%#x seqid=%#x seqcnt=%#x\n", + abts->rx_xch_addr_to_abort, abts->ox_id, abts->rx_id, + abts->seq_id, abts->seq_cnt); + ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0287, + "-------- ABTS RCV -------\n"); + ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0287, + (uint8_t *)abts, sizeof(*abts)); + + rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els), &dma, + GFP_KERNEL); + if (!rsp_els) { + ql_log(ql_log_warn, vha, 0x0287, + "Failed allocate dma buffer ABTS/ELS RSP.\n"); + return; + } + + /* terminate exchange */ + memset(rsp_els, 0, sizeof(*rsp_els)); + rsp_els->entry_type = ELS_IOCB_TYPE; + rsp_els->entry_count = 1; + rsp_els->nport_handle = ~0; + rsp_els->rx_xchg_address = abts->rx_xch_addr_to_abort; + rsp_els->control_flags = EPD_RX_XCHG; + ql_dbg(ql_dbg_init, vha, 0x0283, + "Sending ELS Response to terminate exchange %#x...\n", + abts->rx_xch_addr_to_abort); + ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0283, + "-------- ELS RSP -------\n"); + ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0283, + (uint8_t *)rsp_els, sizeof(*rsp_els)); + rval = qla2x00_issue_iocb(vha, rsp_els, dma, 0); + if (rval) { + ql_log(ql_log_warn, vha, 0x0288, + "%s: iocb failed to execute -> %x\n", __func__, rval); + } else if (rsp_els->comp_status) { + ql_log(ql_log_warn, vha, 0x0289, + "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n", + __func__, rsp_els->comp_status, + rsp_els->error_subcode_1, rsp_els->error_subcode_2); + } else { + ql_dbg(ql_dbg_init, vha, 0x028a, + "%s: abort exchange done.\n", __func__); + } + + /* send ABTS response */ + abts_rsp = (void *)rsp_els; + memset(abts_rsp, 0, sizeof(*abts_rsp)); + abts_rsp->entry_type = ABTS_RSP_TYPE; + abts_rsp->entry_count = 1; + abts_rsp->nport_handle = abts->nport_handle; + abts_rsp->vp_idx = abts->vp_idx; + abts_rsp->sof_type = abts->sof_type & 0xf0; + abts_rsp->rx_xch_addr = abts->rx_xch_addr; + abts_rsp->d_id[0] = abts->s_id[0]; + abts_rsp->d_id[1] = abts->s_id[1]; + abts_rsp->d_id[2] = abts->s_id[2]; + abts_rsp->r_ctl = FC_ROUTING_BLD | FC_R_CTL_BLD_BA_ACC; + abts_rsp->s_id[0] = abts->d_id[0]; + abts_rsp->s_id[1] = abts->d_id[1]; + abts_rsp->s_id[2] = abts->d_id[2]; + abts_rsp->cs_ctl = abts->cs_ctl; + /* include flipping bit23 in fctl */ + fctl = ~(abts->f_ctl[2] | 0x7F) << 16 | + FC_F_CTL_LAST_SEQ | FC_F_CTL_END_SEQ | FC_F_CTL_SEQ_INIT; + abts_rsp->f_ctl[0] = fctl >> 0 & 0xff; + abts_rsp->f_ctl[1] = fctl >> 8 & 0xff; + abts_rsp->f_ctl[2] = fctl >> 16 & 0xff; + abts_rsp->type = FC_TYPE_BLD; + abts_rsp->rx_id = abts->rx_id; + abts_rsp->ox_id = abts->ox_id; + abts_rsp->payload.ba_acc.aborted_rx_id = abts->rx_id; + abts_rsp->payload.ba_acc.aborted_ox_id = abts->ox_id; + abts_rsp->payload.ba_acc.high_seq_cnt = ~0; + abts_rsp->rx_xch_addr_to_abort = abts->rx_xch_addr_to_abort; + ql_dbg(ql_dbg_init, vha, 0x028b, + "Sending BA ACC response to ABTS %#x...\n", + abts->rx_xch_addr_to_abort); + ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x028b, + "-------- ELS RSP -------\n"); + ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x028b, + (uint8_t *)abts_rsp, sizeof(*abts_rsp)); + rval = qla2x00_issue_iocb(vha, abts_rsp, dma, 0); + if (rval) { + ql_log(ql_log_warn, vha, 0x028c, + "%s: iocb failed to execute -> %x\n", __func__, rval); + } else if (abts_rsp->comp_status) { + ql_log(ql_log_warn, vha, 0x028d, + "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n", + __func__, abts_rsp->comp_status, + abts_rsp->payload.error.subcode1, + abts_rsp->payload.error.subcode2); + } else { + ql_dbg(ql_dbg_init, vha, 0x028ea, + "%s: done.\n", __func__); + } + + dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, dma); +} + /** * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. * @irq: interrupt number @@ -3097,6 +3228,11 @@ process_err: qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE); break; case ABTS_RECV_24XX: + if (qla_ini_mode_enabled(vha)) { + qla24xx_purex_iocb(vha, pkt, + qla24xx_process_abts); + break; + } if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) { /* ensure that the ATIO queue is empty */ @@ -3142,8 +3278,18 @@ process_err: (struct vp_ctrl_entry_24xx *)pkt); break; case PUREX_IOCB_TYPE: - qla24xx_purex_iocb(vha, rsp->req, pkt); + { + struct purex_entry_24xx *purex = (void *)pkt; + + if (purex->els_frame_payload[3] != ELS_COMMAND_RDP) { + ql_dbg(ql_dbg_init, vha, 0x5091, + "Discarding ELS Request opcode %#x...\n", + purex->els_frame_payload[3]); + break; + } + qla24xx_purex_iocb(vha, pkt, qla24xx_process_purex_rdp); break; + } default: /* Type Not Supported. */ ql_dbg(ql_dbg_async, vha, 0x5042, |