diff options
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_target.c | 135 | ||||
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_target.h | 4 | ||||
| -rw-r--r-- | drivers/scsi/qla2xxx/tcm_qla2xxx.c | 27 |
3 files changed, 141 insertions, 25 deletions
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index a77703f655ed..b85c833099ff 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -1924,13 +1924,84 @@ static void abort_cmds_for_lun(struct scsi_qla_host *vha, spin_unlock_irqrestore(&vha->cmd_list_lock, flags); } +static struct qla_qpair_hint *qlt_find_qphint(struct scsi_qla_host *vha, + uint64_t unpacked_lun) +{ + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; + struct qla_qpair_hint *h = NULL; + + if (vha->flags.qpairs_available) { + h = btree_lookup64(&tgt->lun_qpair_map, unpacked_lun); + if (!h) + h = &tgt->qphints[0]; + } else { + h = &tgt->qphints[0]; + } + + return h; +} + +static void qlt_do_tmr_work(struct work_struct *work) +{ + struct qla_tgt_mgmt_cmd *mcmd = + container_of(work, struct qla_tgt_mgmt_cmd, work); + struct qla_hw_data *ha = mcmd->vha->hw; + int rc = EIO; + uint32_t tag; + unsigned long flags; + + switch (mcmd->tmr_func) { + case QLA_TGT_ABTS: + tag = mcmd->orig_iocb.abts.exchange_addr_to_abort; + break; + default: + tag = 0; + break; + } + + rc = ha->tgt.tgt_ops->handle_tmr(mcmd, mcmd->unpacked_lun, + mcmd->tmr_func, tag); + + if (rc != 0) { + spin_lock_irqsave(mcmd->qpair->qp_lock_ptr, flags); + switch (mcmd->tmr_func) { + case QLA_TGT_ABTS: + qlt_24xx_send_abts_resp(mcmd->qpair, + &mcmd->orig_iocb.abts, + FCP_TMF_REJECTED, false); + break; + case QLA_TGT_LUN_RESET: + case QLA_TGT_CLEAR_TS: + case QLA_TGT_ABORT_TS: + case QLA_TGT_CLEAR_ACA: + case QLA_TGT_TARGET_RESET: + qlt_send_busy(mcmd->qpair, &mcmd->orig_iocb.atio, + qla_sam_status); + break; + + case QLA_TGT_ABORT_ALL: + case QLA_TGT_NEXUS_LOSS_SESS: + case QLA_TGT_NEXUS_LOSS: + qlt_send_notify_ack(mcmd->qpair, + &mcmd->orig_iocb.imm_ntfy, 0, 0, 0, 0, 0, 0); + break; + } + spin_unlock_irqrestore(mcmd->qpair->qp_lock_ptr, flags); + + ql_dbg(ql_dbg_tgt_mgt, mcmd->vha, 0xf052, + "qla_target(%d): tgt_ops->handle_tmr() failed: %d\n", + mcmd->vha->vp_idx, rc); + mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); + } +} + /* ha->hardware_lock supposed to be held on entry */ static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha, struct abts_recv_from_24xx *abts, struct fc_port *sess) { struct qla_hw_data *ha = vha->hw; struct qla_tgt_mgmt_cmd *mcmd; - int rc; + struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0]; if (abort_cmd_for_tag(vha, abts->exchange_addr_to_abort)) { /* send TASK_ABORT response immediately */ @@ -1955,23 +2026,29 @@ static int __qlt_24xx_handle_abts(struct scsi_qla_host *vha, memcpy(&mcmd->orig_iocb.abts, abts, sizeof(mcmd->orig_iocb.abts)); mcmd->reset_count = ha->base_qpair->chip_reset; mcmd->tmr_func = QLA_TGT_ABTS; - mcmd->qpair = ha->base_qpair; + mcmd->qpair = h->qpair; mcmd->vha = vha; /* * LUN is looked up by target-core internally based on the passed * abts->exchange_addr_to_abort tag. */ - rc = ha->tgt.tgt_ops->handle_tmr(mcmd, 0, mcmd->tmr_func, - abts->exchange_addr_to_abort); - if (rc != 0) { - ql_dbg(ql_dbg_tgt_mgt, vha, 0xf052, - "qla_target(%d): tgt_ops->handle_tmr()" - " failed: %d", vha->vp_idx, rc); - mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); - return -EFAULT; + mcmd->se_cmd.cpuid = h->cpuid; + + if (ha->tgt.tgt_ops->find_cmd_by_tag) { + struct qla_tgt_cmd *abort_cmd; + + abort_cmd = ha->tgt.tgt_ops->find_cmd_by_tag(sess, + abts->exchange_addr_to_abort); + if (abort_cmd && abort_cmd->qpair) { + mcmd->qpair = abort_cmd->qpair; + mcmd->se_cmd.cpuid = abort_cmd->se_cmd.cpuid; + } } + INIT_WORK(&mcmd->work, qlt_do_tmr_work); + queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq, &mcmd->work); + return 0; } @@ -4320,7 +4397,7 @@ static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun, struct qla_hw_data *ha = vha->hw; struct qla_tgt_mgmt_cmd *mcmd; struct atio_from_isp *a = (struct atio_from_isp *)iocb; - int res; + struct qla_qpair_hint *h = &vha->vha_tgt.qla_tgt->qphints[0]; mcmd = mempool_alloc(qla_tgt_mgmt_cmd_mempool, GFP_ATOMIC); if (!mcmd) { @@ -4340,24 +4417,36 @@ static int qlt_issue_task_mgmt(struct fc_port *sess, u64 lun, mcmd->tmr_func = fn; mcmd->flags = flags; mcmd->reset_count = ha->base_qpair->chip_reset; - mcmd->qpair = ha->base_qpair; + mcmd->qpair = h->qpair; mcmd->vha = vha; + mcmd->se_cmd.cpuid = h->cpuid; + mcmd->unpacked_lun = lun; switch (fn) { case QLA_TGT_LUN_RESET: - abort_cmds_for_lun(vha, lun, a->u.isp24.fcp_hdr.s_id); - break; - } + case QLA_TGT_CLEAR_TS: + case QLA_TGT_ABORT_TS: + abort_cmds_for_lun(vha, lun, a->u.isp24.fcp_hdr.s_id); + /* drop through */ + case QLA_TGT_CLEAR_ACA: + h = qlt_find_qphint(vha, mcmd->unpacked_lun); + mcmd->qpair = h->qpair; + mcmd->se_cmd.cpuid = h->cpuid; + break; - res = ha->tgt.tgt_ops->handle_tmr(mcmd, lun, mcmd->tmr_func, 0); - if (res != 0) { - ql_dbg(ql_dbg_tgt_tmr, vha, 0x1000b, - "qla_target(%d): tgt.tgt_ops->handle_tmr() failed: %d\n", - sess->vha->vp_idx, res); - mempool_free(mcmd, qla_tgt_mgmt_cmd_mempool); - return -EFAULT; + case QLA_TGT_TARGET_RESET: + case QLA_TGT_NEXUS_LOSS_SESS: + case QLA_TGT_NEXUS_LOSS: + case QLA_TGT_ABORT_ALL: + default: + /* no-op */ + break; } + INIT_WORK(&mcmd->work, qlt_do_tmr_work); + queue_work_on(mcmd->se_cmd.cpuid, qla_tgt_wq, + &mcmd->work); + return 0; } @@ -5097,8 +5186,6 @@ static void qlt_handle_imm_notify(struct scsi_qla_host *vha, ql_dbg(ql_dbg_tgt_mgt, vha, 0xf038, "qla_target(%d): Immediate notify task %x\n", vha->vp_idx, iocb->u.isp2x.task_flags); - if (qlt_handle_task_mgmt(vha, iocb) == 0) - send_notify_ack = 0; break; case IMM_NTFY_ELS: diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h index 728ce74358e7..fecf96f0225c 100644 --- a/drivers/scsi/qla2xxx/qla_target.h +++ b/drivers/scsi/qla2xxx/qla_target.h @@ -682,7 +682,7 @@ struct qla_tgt_cmd; * target module (tcm_qla2xxx). */ struct qla_tgt_func_tmpl { - + struct qla_tgt_cmd *(*find_cmd_by_tag)(struct fc_port *, uint64_t); int (*handle_cmd)(struct scsi_qla_host *, struct qla_tgt_cmd *, unsigned char *, uint32_t, int, int, int); void (*handle_data)(struct qla_tgt_cmd *); @@ -966,6 +966,8 @@ struct qla_tgt_mgmt_cmd { unsigned int flags; uint32_t reset_count; #define QLA24XX_MGMT_SEND_NACK 1 + struct work_struct work; + uint64_t unpacked_lun; union { struct atio_from_isp atio; struct imm_ntfy_from_isp imm_ntfy; diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index aadfeaac3898..34ea4a8f98d2 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -630,6 +630,32 @@ static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, u64 lun, transl_tmr_func, GFP_ATOMIC, tag, flags); } +static struct qla_tgt_cmd *tcm_qla2xxx_find_cmd_by_tag(struct fc_port *sess, + uint64_t tag) +{ + struct qla_tgt_cmd *cmd = NULL; + struct se_cmd *secmd; + unsigned long flags; + + if (!sess->se_sess) + return NULL; + + spin_lock_irqsave(&sess->se_sess->sess_cmd_lock, flags); + list_for_each_entry(secmd, &sess->se_sess->sess_cmd_list, se_cmd_list) { + /* skip task management functions, including tmr->task_cmd */ + if (secmd->se_cmd_flags & SCF_SCSI_TMR_CDB) + continue; + + if (secmd->tag == tag) { + cmd = container_of(secmd, struct qla_tgt_cmd, se_cmd); + break; + } + } + spin_unlock_irqrestore(&sess->se_sess->sess_cmd_lock, flags); + + return cmd; +} + static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) { struct qla_tgt_cmd *cmd = container_of(se_cmd, @@ -1608,6 +1634,7 @@ static void tcm_qla2xxx_update_sess(struct fc_port *sess, port_id_t s_id, * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path. */ static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { + .find_cmd_by_tag = tcm_qla2xxx_find_cmd_by_tag, .handle_cmd = tcm_qla2xxx_handle_cmd, .handle_data = tcm_qla2xxx_handle_data, .handle_tmr = tcm_qla2xxx_handle_tmr, |