diff options
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_target.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_target.c | 238 |
1 files changed, 215 insertions, 23 deletions
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 6571869c676a..1cd3734292f9 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -224,6 +224,105 @@ static inline void qlt_decr_num_pend_cmds(struct scsi_qla_host *vha) spin_unlock_irqrestore(&vha->hw->tgt.q_full_lock, flags); } + +static void qlt_queue_unknown_atio(scsi_qla_host_t *vha, + struct atio_from_isp *atio, uint8_t ha_locked) +{ + struct qla_tgt_sess_op *u; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; + unsigned long flags; + + if (tgt->tgt_stop) { + ql_dbg(ql_dbg_async, vha, 0xffff, + "qla_target(%d): dropping unknown ATIO_TYPE7, " + "because tgt is being stopped", vha->vp_idx); + goto out_term; + } + + u = kzalloc(sizeof(*u), GFP_ATOMIC); + if (u == NULL) { + ql_dbg(ql_dbg_async, vha, 0xffff, + "Alloc of struct unknown_atio (size %zd) failed", sizeof(*u)); + /* It should be harmless and on the next retry should work well */ + goto out_term; + } + + u->vha = vha; + memcpy(&u->atio, atio, sizeof(*atio)); + INIT_LIST_HEAD(&u->cmd_list); + + spin_lock_irqsave(&vha->cmd_list_lock, flags); + list_add_tail(&u->cmd_list, &vha->unknown_atio_list); + spin_unlock_irqrestore(&vha->cmd_list_lock, flags); + + schedule_delayed_work(&vha->unknown_atio_work, 1); + +out: + return; + +out_term: + qlt_send_term_exchange(vha, NULL, atio, ha_locked, 0); + goto out; +} + +static void qlt_try_to_dequeue_unknown_atios(struct scsi_qla_host *vha, + uint8_t ha_locked) +{ + struct qla_tgt_sess_op *u, *t; + scsi_qla_host_t *host; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; + unsigned long flags; + uint8_t queued = 0; + + list_for_each_entry_safe(u, t, &vha->unknown_atio_list, cmd_list) { + if (u->aborted) { + ql_dbg(ql_dbg_async, vha, 0xffff, + "Freeing unknown %s %p, because of Abort", + "ATIO_TYPE7", u); + qlt_send_term_exchange(vha, NULL, &u->atio, + ha_locked, 0); + goto abort; + } + + host = qlt_find_host_by_d_id(vha, u->atio.u.isp24.fcp_hdr.d_id); + if (host != NULL) { + ql_dbg(ql_dbg_async, vha, 0xffff, + "Requeuing unknown ATIO_TYPE7 %p", u); + qlt_24xx_atio_pkt(host, &u->atio, ha_locked); + } else if (tgt->tgt_stop) { + ql_dbg(ql_dbg_async, vha, 0xffff, + "Freeing unknown %s %p, because tgt is being stopped", + "ATIO_TYPE7", u); + qlt_send_term_exchange(vha, NULL, &u->atio, + ha_locked, 0); + } else { + ql_dbg(ql_dbg_async, vha, 0xffff, + "u %p, vha %p, host %p, sched again..", u, + vha, host); + if (!queued) { + queued = 1; + schedule_delayed_work(&vha->unknown_atio_work, + 1); + } + continue; + } + +abort: + spin_lock_irqsave(&vha->cmd_list_lock, flags); + list_del(&u->cmd_list); + spin_unlock_irqrestore(&vha->cmd_list_lock, flags); + kfree(u); + } +} + +void qlt_unknown_atio_work_fn(struct work_struct *work) +{ + struct scsi_qla_host *vha = container_of(to_delayed_work(work), + struct scsi_qla_host, unknown_atio_work); + + qlt_try_to_dequeue_unknown_atios(vha, 0); +} + static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha, struct atio_from_isp *atio, uint8_t ha_locked) { @@ -244,8 +343,14 @@ static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha, atio->u.isp24.fcp_hdr.d_id[0], atio->u.isp24.fcp_hdr.d_id[1], atio->u.isp24.fcp_hdr.d_id[2]); + + + qlt_queue_unknown_atio(vha, atio, ha_locked); break; } + if (unlikely(!list_empty(&vha->unknown_atio_list))) + qlt_try_to_dequeue_unknown_atios(vha, ha_locked); + qlt_24xx_atio_pkt(host, atio, ha_locked); break; } @@ -273,6 +378,31 @@ static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha, break; } + case VP_RPT_ID_IOCB_TYPE: + qla24xx_report_id_acquisition(vha, + (struct vp_rpt_id_entry_24xx *)atio); + break; + + case ABTS_RECV_24XX: + { + struct abts_recv_from_24xx *entry = + (struct abts_recv_from_24xx *)atio; + struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, + entry->vp_index); + if (unlikely(!host)) { + ql_dbg(ql_dbg_tgt, vha, 0xffff, + "qla_target(%d): Response pkt (ABTS_RECV_24XX) " + "received, with unknown vp_index %d\n", + vha->vp_idx, entry->vp_index); + break; + } + qlt_response_pkt(host, (response_t *)atio); + break; + + } + + /* case PUREX_IOCB_TYPE: ql2xmvasynctoatio */ + default: ql_dbg(ql_dbg_tgt, vha, 0xe040, "qla_target(%d): Received unknown ATIO atio " @@ -791,6 +921,7 @@ static void qlt_free_session_done(struct work_struct *work) unsigned long flags; bool logout_started = false; struct event_arg ea; + scsi_qla_host_t *base_vha; ql_dbg(ql_dbg_tgt_mgt, vha, 0xf084, "%s: se_sess %p / sess %p from port %8phC loop_id %#04x" @@ -802,23 +933,25 @@ static void qlt_free_session_done(struct work_struct *work) if (!IS_SW_RESV_ADDR(sess->d_id)) { - if (sess->send_els_logo) { - qlt_port_logo_t logo; - logo.id = sess->d_id; - logo.cmd_count = 0; - qlt_send_first_logo(vha, &logo); - } + if (sess->send_els_logo) { + qlt_port_logo_t logo; - if (sess->logout_on_delete) { - int rc; - rc = qla2x00_post_async_logout_work(vha, sess, NULL); - if (rc != QLA_SUCCESS) - ql_log(ql_log_warn, vha, 0xf085, - "Schedule logo failed sess %p rc %d\n", - sess, rc); - else - logout_started = true; - } + logo.id = sess->d_id; + logo.cmd_count = 0; + qlt_send_first_logo(vha, &logo); + } + + if (sess->logout_on_delete) { + int rc; + + rc = qla2x00_post_async_logout_work(vha, sess, NULL); + if (rc != QLA_SUCCESS) + ql_log(ql_log_warn, vha, 0xf085, + "Schedule logo failed sess %p rc %d\n", + sess, rc); + else + logout_started = true; + } } /* @@ -841,8 +974,13 @@ static void qlt_free_session_done(struct work_struct *work) } ql_dbg(ql_dbg_disc, vha, 0xf087, - "%s: sess %p logout completed\n", - __func__, sess); + "%s: sess %p logout completed\n",__func__, sess); + } + + if (sess->logo_ack_needed) { + sess->logo_ack_needed = 0; + qla24xx_async_notify_ack(vha, sess, + (struct imm_ntfy_from_isp *)sess->iocb, SRB_NACK_LOGO); } spin_lock_irqsave(&ha->tgt.sess_lock, flags); @@ -917,6 +1055,10 @@ static void qlt_free_session_done(struct work_struct *work) if (vha->fcport_count == 0) wake_up_all(&vha->fcport_waitQ); + base_vha = pci_get_drvdata(ha->pdev); + if (test_bit(PFLG_DRIVER_REMOVING, &base_vha->pci_flags)) + return; + if (!tgt || !tgt->tgt_stop) { memset(&ea, 0, sizeof(ea)); ea.event = FCME_DELETE_DONE; @@ -1602,6 +1744,14 @@ static int abort_cmd_for_tag(struct scsi_qla_host *vha, uint32_t tag) } } + list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) { + if (tag == op->atio.u.isp24.exchange_addr) { + op->aborted = true; + spin_unlock(&vha->cmd_list_lock); + return 1; + } + } + list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { if (tag == cmd->atio.u.isp24.exchange_addr) { cmd->aborted = 1; @@ -1638,6 +1788,18 @@ static void abort_cmds_for_lun(struct scsi_qla_host *vha, if (op_key == key && op_lun == lun) op->aborted = true; } + + list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) { + uint32_t op_key; + u64 op_lun; + + op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); + op_lun = scsilun_to_int( + (struct scsi_lun *)&op->atio.u.isp24.fcp_cmnd.lun); + if (op_key == key && op_lun == lun) + op->aborted = true; + } + list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { uint32_t cmd_key; uint32_t cmd_lun; @@ -1880,7 +2042,11 @@ void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd) if (mcmd->flags == QLA24XX_MGMT_SEND_NACK) { if (mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode == - ELS_LOGO) { + ELS_LOGO || + mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode == + ELS_PRLO || + mcmd->orig_iocb.imm_ntfy.u.isp24.status_subcode == + ELS_TPRLO) { ql_dbg(ql_dbg_disc, vha, 0xffff, "TM response logo %phC status %#x state %#x", mcmd->sess->port_name, mcmd->fc_tm_rsp, @@ -4252,11 +4418,21 @@ static int abort_cmds_for_s_id(struct scsi_qla_host *vha, port_id_t *s_id) spin_lock(&vha->cmd_list_lock); list_for_each_entry(op, &vha->qla_sess_op_cmd_list, cmd_list) { uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); + if (op_key == key) { op->aborted = true; count++; } } + + list_for_each_entry(op, &vha->unknown_atio_list, cmd_list) { + uint32_t op_key = sid_to_key(op->atio.u.isp24.fcp_hdr.s_id); + if (op_key == key) { + op->aborted = true; + count++; + } + } + list_for_each_entry(cmd, &vha->qla_cmd_list, cmd_list) { uint32_t cmd_key = sid_to_key(cmd->atio.u.isp24.fcp_hdr.s_id); if (cmd_key == key) { @@ -4463,6 +4639,16 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha, } break; + + case ELS_TPRLO: + if (le16_to_cpu(iocb->u.isp24.flags) & + NOTIFY24XX_FLAGS_GLOBAL_TPRLO) { + loop_id = 0xFFFF; + qlt_reset(vha, iocb, QLA_TGT_NEXUS_LOSS); + res = 1; + break; + } + /* drop through */ case ELS_LOGO: case ELS_PRLO: spin_lock_irqsave(&ha->tgt.sess_lock, flags); @@ -4472,7 +4658,6 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha, if (sess) { sess->login_gen++; sess->fw_login_state = DSC_LS_LOGO_PEND; - sess->logout_on_delete = 0; sess->logo_ack_needed = 1; memcpy(sess->iocb, iocb, IOCB_SIZE); } @@ -4483,12 +4668,14 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha, "%s: logo %llx res %d sess %p ", __func__, wwn, res, sess); if (res == 0) { - /* cmd went up to ULP. look for qlt_xmit_tm_rsp() - for LOGO_ACK */ + /* + * cmd went upper layer, look for qlt_xmit_tm_rsp() + * for LOGO_ACK & sess delete + */ BUG_ON(!sess); res = 0; } else { - /* cmd did not go upstair. */ + /* cmd did not go to upper layer. */ if (sess) { qlt_schedule_sess_for_deletion_lock(sess); res = 0; @@ -6407,6 +6594,11 @@ qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha) mutex_init(&base_vha->vha_tgt.tgt_mutex); mutex_init(&base_vha->vha_tgt.tgt_host_action_mutex); + + INIT_LIST_HEAD(&base_vha->unknown_atio_list); + INIT_DELAYED_WORK(&base_vha->unknown_atio_work, + qlt_unknown_atio_work_fn); + qlt_clear_mode(base_vha); } |