[SCSI] be2iscsi: Adding a shutdown Routine

This patch adds a shutdown routine. It fixes a bug where when be2net
and be2iscsi are both used be2iscsi was not cleaning up its resources
properly causing be2net to fail to get loaded when the system is
rebooted.

Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

1 files changed, 30 insertions, 8 deletions

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 04970eb1975..51cfd4f2911 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -4119,9 +4119,8 @@ static int beiscsi_task_xmit(struct iscsi_task *task)
         return beiscsi_iotask(task, sg, num_sg, xferlen, writedir);
 }
 
-static void beiscsi_remove(struct pci_dev *pcidev)
+static void beiscsi_quiesce(struct beiscsi_hba *phba)
 {
-        struct beiscsi_hba *phba = NULL;
         struct hwi_controller *phwi_ctrlr;
         struct hwi_context_memory *phwi_context;
         struct be_eq_obj *pbe_eq;
@@ -4129,12 +4128,6 @@ static void beiscsi_remove(struct pci_dev *pcidev)
         u8 *real_offset = 0;
         u32 value = 0;
 
-        phba = (struct beiscsi_hba *)pci_get_drvdata(pcidev);
-        if (!phba) {
-                dev_err(&pcidev->dev, "beiscsi_remove called with no phba\n");
-                return;
-        }
-
         phwi_ctrlr = phba->phwi_ctrlr;
         phwi_context = phwi_ctrlr->phwi_ctxt;
         hwi_disable_intr(phba);
@@ -4170,12 +4163,40 @@ static void beiscsi_remove(struct pci_dev *pcidev)
                             phba->ctrl.mbox_mem_alloced.size,
                             phba->ctrl.mbox_mem_alloced.va,
                             phba->ctrl.mbox_mem_alloced.dma);
+}
+
+static void beiscsi_remove(struct pci_dev *pcidev)
+{
+
+        struct beiscsi_hba *phba = NULL;
+
+        phba = pci_get_drvdata(pcidev);
+        if (!phba) {
+                dev_err(&pcidev->dev, "beiscsi_remove called with no phba\n");
+                return;
+        }
+
+        beiscsi_quiesce(phba);
         iscsi_boot_destroy_kset(phba->boot_kset);
         iscsi_host_remove(phba->shost);
         pci_dev_put(phba->pcidev);
         iscsi_host_free(phba->shost);
 }
 
+static void beiscsi_shutdown(struct pci_dev *pcidev)
+{
+
+        struct beiscsi_hba *phba = NULL;
+
+        phba = (struct beiscsi_hba *)pci_get_drvdata(pcidev);
+        if (!phba) {
+                dev_err(&pcidev->dev, "beiscsi_shutdown called with no phba\n");
+                return;
+        }
+
+        beiscsi_quiesce(phba);
+}
+
 static void beiscsi_msix_enable(struct beiscsi_hba *phba)
 {
         int i, status;
@@ -4411,6 +4432,7 @@ static struct pci_driver beiscsi_pci_driver = {
         .name = DRV_NAME,
         .probe = beiscsi_dev_probe,
         .remove = beiscsi_remove,
+        .shutdown = beiscsi_shutdown,
         .id_table = beiscsi_pci_id_table
 };