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Date: Wed, 16 Jan 2013 17:42:12 +0200 From: Amir Vadai <amirv@...lanox.com> To: "David S. Miller" <davem@...emloft.net> Cc: netdev@...r.kernel.org, Or Gerlitz <ogerlitz@...lanox.com>, Amir Vadai <amirv@...lanox.com>, Eugenia Emantayev <eugenia@...lanox.com> Subject: [PATCH net-next 4/7] net/mlx4_en: Set carrier to off when a port is stopped From: Eugenia Emantayev <eugenia@...lanox.com> Under heavy CPU load changing ring size/mtu/etc. could result in transmit timeout, since stop-start port might take more than 10 sec. Set netif_carrier_off to prevent tx queue transmit timeout. Signed-off-by: Eugenia Emantayev <eugenia@...lanox.com> Signed-off-by: Amir Vadai <amirv@...lanox.com> --- drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 805e242..108c4cf 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -1212,6 +1212,7 @@ void mlx4_en_stop_port(struct net_device *dev) /* Synchronize with tx routine */ netif_tx_lock_bh(dev); + netif_carrier_off(dev); netif_tx_stop_all_queues(dev); netif_tx_unlock_bh(dev); -- 1.7.8.2 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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