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Commit b8c80b84 authored by Thomas Falcon's avatar Thomas Falcon Committed by David S. Miller
Browse files

ibmvnic: Halt TX and report carrier off on H_CLOSED return code 



This patch disables transmissions and reports carrier off if xmit
function returns that the hardware TX queue is closed. The driver can
then await a signal from firmware to determine the correct reset method.

Signed-off-by: default avatarThomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8cb31cfc

drivers/net/ethernet/ibm/ibmvnic.c

+8 −2
Original line number Diff line number Diff line
@@ -1111,8 +1111,14 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev) 
		dev_kfree_skb_any(skb);

		tx_buff->skb = NULL;



		if (lpar_rc == H_CLOSED)

			netif_stop_subqueue(netdev, queue_num);

		if (lpar_rc == H_CLOSED) {

			/* Disable TX and report carrier off if queue is closed.

			 * Firmware guarantees that a signal will be sent to the

			 * driver, triggering a reset or some other action.

			 */

			netif_tx_stop_all_queues(netdev);

			netif_carrier_off(netdev);

		}



		tx_send_failed++;

		tx_dropped++;