be2net: Fix Lancer error recovery

After error is detected, wait for adapter to move to ready state
before destroying queues and cleanup of other resources. Also
skip performing any cleanup for non-Lancer chips and move debug
messages to correct routine.
Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@broadcom.com>
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/emulex/benet/be_main.c

@@ -4859,21 +4859,27 @@ static int be_resume(struct be_adapter *adapter)
 
 static int be_err_recover(struct be_adapter *adapter)
 {
-	struct device *dev = &adapter->pdev->dev;
 	int status;
 
+	/* Error recovery is supported only Lancer as of now */
+	if (!lancer_chip(adapter))
+		return -EIO;
+
+	/* Wait for adapter to reach quiescent state before
+	 * destroying queues
+	 */
+	status = be_fw_wait_ready(adapter);
+	if (status)
+		goto err;
+
+	be_cleanup(adapter);
+
 	status = be_resume(adapter);
 	if (status)
 		goto err;
 
-	dev_info(dev, "Adapter recovery successful\n");
 	return 0;
 err:
-	if (be_physfn(adapter))
-		dev_err(dev, "Adapter recovery failed\n");
-	else
-		dev_err(dev, "Re-trying adapter recovery\n");
-
 	return status;
 }
 
@@ -4882,20 +4888,31 @@ static void be_err_detection_task(struct work_struct *work)
 	struct be_adapter *adapter =
 				container_of(work, struct be_adapter,
 					     be_err_detection_work.work);
-	int status = 0;
+	struct device *dev = &adapter->pdev->dev;
+	int recovery_status;
 
 	be_detect_error(adapter);
 
-	if (be_check_error(adapter, BE_ERROR_HW)) {
-		be_cleanup(adapter);
+	if (be_check_error(adapter, BE_ERROR_HW))
+		recovery_status = be_err_recover(adapter);
+	else
+		goto reschedule_task;
 
-		/* As of now error recovery support is in Lancer only */
-		if (lancer_chip(adapter))
-			status = be_err_recover(adapter);
+	if (!recovery_status) {
+		dev_info(dev, "Adapter recovery successful\n");
+		goto reschedule_task;
+	} else if (be_virtfn(adapter)) {
+		/* For VFs, check if PF have allocated resources
+		 * every second.
+		 */
+		dev_err(dev, "Re-trying adapter recovery\n");
+		goto reschedule_task;
+	} else {
+		dev_err(dev, "Adapter recovery failed\n");
 	}
 
-	/* Always attempt recovery on VFs */
-	if (!status || be_virtfn(adapter))
+	return;
+reschedule_task:
 	be_schedule_err_detection(adapter);
 }