diff options
| -rw-r--r-- | drivers/scsi/qedf/qedf.h | 4 | ||||
| -rw-r--r-- | drivers/scsi/qedf/qedf_fip.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/qedf/qedf_main.c | 60 |
3 files changed, 57 insertions, 11 deletions
diff --git a/drivers/scsi/qedf/qedf.h b/drivers/scsi/qedf/qedf.h index fb7d0d5ffa67..1e0d1429ed48 100644 --- a/drivers/scsi/qedf/qedf.h +++ b/drivers/scsi/qedf/qedf.h @@ -500,7 +500,7 @@ extern void qedf_set_vlan_id(struct qedf_ctx *qedf, int vlan_id); extern void qedf_create_sysfs_ctx_attr(struct qedf_ctx *qedf); extern void qedf_remove_sysfs_ctx_attr(struct qedf_ctx *qedf); extern void qedf_capture_grc_dump(struct qedf_ctx *qedf); -extern void qedf_wait_for_upload(struct qedf_ctx *qedf); +bool qedf_wait_for_upload(struct qedf_ctx *qedf); extern void qedf_process_unsol_compl(struct qedf_ctx *qedf, uint16_t que_idx, struct fcoe_cqe *cqe); extern void qedf_restart_rport(struct qedf_rport *fcport); @@ -514,6 +514,8 @@ extern void qedf_get_protocol_tlv_data(void *dev, void *data); extern void qedf_fp_io_handler(struct work_struct *work); extern void qedf_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data); extern void qedf_wq_grcdump(struct work_struct *work); +void qedf_stag_change_work(struct work_struct *work); +void qedf_ctx_soft_reset(struct fc_lport *lport); #define FCOE_WORD_TO_BYTE 4 #define QEDF_MAX_TASK_NUM 0xFFFF diff --git a/drivers/scsi/qedf/qedf_fip.c b/drivers/scsi/qedf/qedf_fip.c index e669679e6a3b..53c5eca55061 100644 --- a/drivers/scsi/qedf/qedf_fip.c +++ b/drivers/scsi/qedf/qedf_fip.c @@ -236,9 +236,7 @@ void qedf_fip_recv(struct qedf_ctx *qedf, struct sk_buff *skb) QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, "do_reset=%d.\n", do_reset); if (do_reset) { - fcoe_ctlr_link_down(&qedf->ctlr); - qedf_wait_for_upload(qedf); - fcoe_ctlr_link_up(&qedf->ctlr); + qedf_ctx_soft_reset(qedf->lport); } kfree_skb(skb); } else { diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index bc787ce0b526..ad72a1eb3bca 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -156,7 +156,8 @@ static void qedf_handle_link_update(struct work_struct *work) container_of(work, struct qedf_ctx, link_update.work); int rc; - QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Entered.\n"); + QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, "Entered. link_state=%d.\n", + atomic_read(&qedf->link_state)); if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) { rc = qedf_initiate_fipvlan_req(qedf); @@ -194,7 +195,9 @@ static void qedf_handle_link_update(struct work_struct *work) QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Calling fcoe_ctlr_link_down().\n"); fcoe_ctlr_link_down(&qedf->ctlr); - qedf_wait_for_upload(qedf); + if (qedf_wait_for_upload(qedf) == false) + QEDF_ERR(&qedf->dbg_ctx, + "Could not upload all sessions.\n"); /* Reset the number of FIP VLAN retries */ qedf->fipvlan_retries = qedf_fipvlan_retries; } @@ -780,22 +783,42 @@ static int qedf_eh_device_reset(struct scsi_cmnd *sc_cmd) return qedf_initiate_tmf(sc_cmd, FCP_TMF_LUN_RESET); } -void qedf_wait_for_upload(struct qedf_ctx *qedf) +bool qedf_wait_for_upload(struct qedf_ctx *qedf) { + struct qedf_rport *fcport = NULL; + while (1) { if (atomic_read(&qedf->num_offloads)) QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Waiting for all uploads to complete.\n"); else - break; + return true; msleep(500); } + + rcu_read_lock(); + list_for_each_entry_rcu(fcport, &qedf->fcports, peers) { + if (fcport && test_bit(QEDF_RPORT_SESSION_READY, + &fcport->flags)) { + if (fcport->rdata) + QEDF_ERR(&qedf->dbg_ctx, + "Waiting for fcport %p portid=%06x.\n", + fcport, fcport->rdata->ids.port_id); + } else { + QEDF_ERR(&qedf->dbg_ctx, + "Waiting for fcport %p.\n", fcport); + } + } + rcu_read_unlock(); + return false; + } /* Performs soft reset of qedf_ctx by simulating a link down/up */ -static void qedf_ctx_soft_reset(struct fc_lport *lport) +void qedf_ctx_soft_reset(struct fc_lport *lport) { struct qedf_ctx *qedf; + struct qed_link_output if_link; if (lport->vport) { QEDF_ERR(NULL, "Cannot issue host reset on NPIV port.\n"); @@ -806,11 +829,32 @@ static void qedf_ctx_soft_reset(struct fc_lport *lport) /* For host reset, essentially do a soft link up/down */ atomic_set(&qedf->link_state, QEDF_LINK_DOWN); + QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, + "Queuing link down work.\n"); queue_delayed_work(qedf->link_update_wq, &qedf->link_update, 0); - qedf_wait_for_upload(qedf); + + if (qedf_wait_for_upload(qedf) == false) { + QEDF_ERR(&qedf->dbg_ctx, "Could not upload all sessions.\n"); + WARN_ON(atomic_read(&qedf->num_offloads)); + } + + /* Before setting link up query physical link state */ + qed_ops->common->get_link(qedf->cdev, &if_link); + /* Bail if the physical link is not up */ + if (!if_link.link_up) { + QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, + "Physical link is not up.\n"); + return; + } + /* Flush and wait to make sure link down is processed */ + flush_delayed_work(&qedf->link_update); + msleep(500); + atomic_set(&qedf->link_state, QEDF_LINK_UP); qedf->vlan_id = 0; + QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_DISC, + "Queue link up work.\n"); queue_delayed_work(qedf->link_update_wq, &qedf->link_update, 0); } @@ -3453,7 +3497,9 @@ static void __qedf_remove(struct pci_dev *pdev, int mode) fcoe_ctlr_link_down(&qedf->ctlr); else fc_fabric_logoff(qedf->lport); - qedf_wait_for_upload(qedf); + + if (qedf_wait_for_upload(qedf) == false) + QEDF_ERR(&qedf->dbg_ctx, "Could not upload all sessions.\n"); #ifdef CONFIG_DEBUG_FS qedf_dbg_host_exit(&(qedf->dbg_ctx)); |