4 files changed, 26 insertions, 4 deletions

diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h
index 6cf9dc37d78b..6b624e767d3b 100644
--- a/drivers/scsi/bnx2i/bnx2i.h
+++ b/drivers/scsi/bnx2i/bnx2i.h
@@ -362,6 +362,7 @@ struct bnx2i_hba {
 	u32 num_ccell;
 
 	int ofld_conns_active;
+	wait_queue_head_t eh_wait;
 
 	int max_active_conns;
 	struct iscsi_cid_queue cid_que;
@@ -381,6 +382,7 @@ struct bnx2i_hba {
 	spinlock_t lock;	/* protects hba structure access */
 	struct mutex net_dev_lock;/* sync net device access */
 
+	int hba_shutdown_tmo;
 	/*
 	 * PCI related info.
 	 */
diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c
index 1af578dec276..18352ff82101 100644
--- a/drivers/scsi/bnx2i/bnx2i_hwi.c
+++ b/drivers/scsi/bnx2i/bnx2i_hwi.c
@@ -11,6 +11,7 @@
  * Written by: Anil Veerabhadrappa (anilgv@broadcom.com)
  */
 
+#include <linux/gfp.h>
 #include <scsi/scsi_tcq.h>
 #include <scsi/libiscsi.h>
 #include "bnx2i.h"
diff --git a/drivers/scsi/bnx2i/bnx2i_init.c b/drivers/scsi/bnx2i/bnx2i_init.c
index 6d8172e781cf..5d9296c599f6 100644
--- a/drivers/scsi/bnx2i/bnx2i_init.c
+++ b/drivers/scsi/bnx2i/bnx2i_init.c
@@ -177,11 +177,22 @@ void bnx2i_stop(void *handle)
 	struct bnx2i_hba *hba = handle;
 
 	/* check if cleanup happened in GOING_DOWN context */
-	clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
 	if (!test_and_clear_bit(ADAPTER_STATE_GOING_DOWN,
 				&hba->adapter_state))
 		iscsi_host_for_each_session(hba->shost,
 					    bnx2i_drop_session);
+
+	/* Wait for all endpoints to be torn down, Chip will be reset once
+	 *  control returns to network driver. So it is required to cleanup and
+	 * release all connection resources before returning from this routine.
+	 */
+	wait_event_interruptible_timeout(hba->eh_wait,
+					 (hba->ofld_conns_active == 0),
+					 hba->hba_shutdown_tmo);
+	/* This flag should be cleared last so that ep_disconnect() gracefully
+	 * cleans up connection context
+	 */
+	clear_bit(ADAPTER_STATE_UP, &hba->adapter_state);
 }
 
 /**
diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index cb71dc984797..fa68ab34b998 100644
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -12,6 +12,7 @@
  * Written by: Anil Veerabhadrappa (anilgv@broadcom.com)
  */
 
+#include <linux/slab.h>
 #include <scsi/scsi_tcq.h>
 #include <scsi/libiscsi.h>
 #include "bnx2i.h"
@@ -819,6 +820,11 @@ struct bnx2i_hba *bnx2i_alloc_hba(struct cnic_dev *cnic)
 
 	spin_lock_init(&hba->lock);
 	mutex_init(&hba->net_dev_lock);
+	init_waitqueue_head(&hba->eh_wait);
+	if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type))
+		hba->hba_shutdown_tmo = 240 * HZ;
+	else	/* 5706/5708/5709 */
+		hba->hba_shutdown_tmo = 30 * HZ;
 
 	if (iscsi_host_add(shost, &hba->pcidev->dev))
 		goto free_dump_mem;
@@ -1657,8 +1663,8 @@ static struct iscsi_endpoint *bnx2i_ep_connect(struct Scsi_Host *shost,
 		 */
 		hba = bnx2i_check_route(dst_addr);
 
-	if (!hba) {
-		rc = -ENOMEM;
+	if (!hba || test_bit(ADAPTER_STATE_GOING_DOWN, &hba->adapter_state)) {
+		rc = -EINVAL;
 		goto check_busy;
 	}
 
@@ -1803,7 +1809,7 @@ static int bnx2i_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
 					       (bnx2i_ep->state ==
 						EP_STATE_CONNECT_COMPL)),
 					      msecs_to_jiffies(timeout_ms));
-	if (!rc || (bnx2i_ep->state == EP_STATE_OFLD_FAILED))
+	if (bnx2i_ep->state == EP_STATE_OFLD_FAILED)
 		rc = -1;
 
 	if (rc > 0)
@@ -1956,6 +1962,8 @@ return_bnx2i_ep:
 
 	if (!hba->ofld_conns_active)
 		bnx2i_unreg_dev_all();
+
+	wake_up_interruptible(&hba->eh_wait);
 }