From: Todd Fujinaka Date: Sat, 21 Mar 2015 00:41:54 +0000 (-0700) Subject: igbvf: use netif_carrier_off earlier when bringing if down X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=784401bfc0b22b5521492047884e8d834de4dfab;p=openwrt%2Fstaging%2Fblogic.git igbvf: use netif_carrier_off earlier when bringing if down Use netif_carrier_off() first, since that will prevent the stack from queuing more packets to this IF. This operation is fast, and should behave much nicer when trying to bring down an interface under load. Reported-by: Eliezer Tamir Signed-off-by: Todd Fujinaka Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c index c17ea4b8f84d..95af14e139d7 100644 --- a/drivers/net/ethernet/intel/igbvf/netdev.c +++ b/drivers/net/ethernet/intel/igbvf/netdev.c @@ -1519,6 +1519,7 @@ void igbvf_down(struct igbvf_adapter *adapter) rxdctl = er32(RXDCTL(0)); ew32(RXDCTL(0), rxdctl & ~E1000_RXDCTL_QUEUE_ENABLE); + netif_carrier_off(netdev); netif_stop_queue(netdev); /* disable transmits in the hardware */ @@ -1535,8 +1536,6 @@ void igbvf_down(struct igbvf_adapter *adapter) del_timer_sync(&adapter->watchdog_timer); - netif_carrier_off(netdev); - /* record the stats before reset*/ igbvf_update_stats(adapter);