[SCSI] be2iscsi: Fix Unrecoverable Error Detection

Driver periodically checks adapter state,is up fine or not.
Based on the value updates the internal structures of driver.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 26 insertions, 0 deletions

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 73a29b2c18ba..48d37dded8f1 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -4717,6 +4717,8 @@ static void beiscsi_quiesce(struct beiscsi_hba *phba)
                             phba->ctrl.mbox_mem_alloced.size,
                             phba->ctrl.mbox_mem_alloced.va,
                             phba->ctrl.mbox_mem_alloced.dma);
+
+        cancel_delayed_work_sync(&phba->beiscsi_hw_check_task);
 }
 
 static void beiscsi_remove(struct pci_dev *pcidev)
@@ -4769,6 +4771,25 @@ static void beiscsi_msix_enable(struct beiscsi_hba *phba)
         return;
 }
 
+/*
+ * beiscsi_hw_health_check()- Check adapter health
+ * @work: work item to check HW health
+ *
+ * Check if adapter in an unrecoverable state or not.
+ **/
+static void
+beiscsi_hw_health_check(struct work_struct *work)
+{
+        struct beiscsi_hba *phba =
+                container_of(work, struct beiscsi_hba,
+                             beiscsi_hw_check_task.work);
+
+        beiscsi_ue_detect(phba);
+
+        schedule_delayed_work(&phba->beiscsi_hw_check_task,
+                              msecs_to_jiffies(1000));
+}
+
 static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
                                 const struct pci_device_id *id)
 {
@@ -4892,6 +4913,8 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
                 goto free_twq;
         }
 
+        INIT_DELAYED_WORK(&phba->beiscsi_hw_check_task,
+                          beiscsi_hw_health_check);
 
         phwi_ctrlr = phba->phwi_ctrlr;
         phwi_context = phwi_ctrlr->phwi_ctxt;
@@ -4941,6 +4964,9 @@ static int __devinit beiscsi_dev_probe(struct pci_dev *pcidev,
                             "iSCSI boot info.\n");
 
         beiscsi_create_def_ifaces(phba);
+        schedule_delayed_work(&phba->beiscsi_hw_check_task,
+                              msecs_to_jiffies(1000));
+
         beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
                     "\n\n\n BM_%d : SUCCESS - DRIVER LOADED\n\n\n");
         return 0;