[SCSI] lpfc 8.3.42: Fixed issue of task management commands having a fixed timeout

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

3 files changed, 10 insertions, 1 deletions

diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index df43bfe6d573..4e1b75ca7451 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -708,6 +708,7 @@ struct lpfc_hba {
         uint32_t cfg_multi_ring_type;
         uint32_t cfg_poll;
         uint32_t cfg_poll_tmo;
+        uint32_t cfg_task_mgmt_tmo;
         uint32_t cfg_use_msi;
         uint32_t cfg_fcp_imax;
         uint32_t cfg_fcp_cpu_map;
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index ad80f9ca2dbb..c6fd42a20674 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -4115,6 +4115,12 @@ LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
              "Milliseconds driver will wait between polling FCP ring");
 
 /*
+# lpfc_task_mgmt_tmo: Maximum time to wait for task management commands
+# to complete in seconds. Value range is [5,180], default value is 60.
+*/
+LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180,
+             "Maximum time to wait for task management commands to complete");
+/*
 # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that
 #               support this feature
 #       0  = MSI disabled
@@ -4300,6 +4306,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
         &dev_attr_issue_reset,
         &dev_attr_lpfc_poll,
         &dev_attr_lpfc_poll_tmo,
+        &dev_attr_lpfc_task_mgmt_tmo,
         &dev_attr_lpfc_use_msi,
         &dev_attr_lpfc_fcp_imax,
         &dev_attr_lpfc_fcp_cpu_map,
@@ -5279,6 +5286,7 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
         lpfc_topology_init(phba, lpfc_topology);
         lpfc_link_speed_init(phba, lpfc_link_speed);
         lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
+        lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo);
         lpfc_enable_npiv_init(phba, lpfc_enable_npiv);
         lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy);
         lpfc_enable_rrq_init(phba, lpfc_enable_rrq);
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 556bc7a54a1f..c913e8cc3b26 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -5015,7 +5015,7 @@ lpfc_send_taskmgmt(struct lpfc_vport *vport, struct lpfc_rport_data *rdata,
         lpfc_cmd = lpfc_get_scsi_buf(phba, rdata->pnode);
         if (lpfc_cmd == NULL)
                 return FAILED;
-        lpfc_cmd->timeout = 60;
+        lpfc_cmd->timeout = phba->cfg_task_mgmt_tmo;
         lpfc_cmd->rdata = rdata;
 
         status = lpfc_scsi_prep_task_mgmt_cmd(vport, lpfc_cmd, lun_id,