From: Thomas Falcon <tlfal...@linux.vnet.ibm.com> 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: Thomas Falcon <tlfal...@linux.vnet.ibm.com> --- drivers/net/ethernet/ibm/ibmvnic.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index def867a..1c3f1ed 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -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++;