From 32b333fe99069d090a12cc106fd5ae1002fe642f Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Mon, 14 Jul 2014 11:42:44 +0800 Subject: [PATCH] mlx4: mark napi id for gro_skb Napi id was not marked for gro_skb, this will lead rx busy loop won't work correctly since they stack never try to call low latency receive method because of a zero socket napi id. Fix this by marking napi id for gro_skb. The transaction rate of 1 byte netperf tcp_rr gets about 50% increased (from 20531.68 to 30610.88). Cc: Amir Vadai Signed-off-by: Jason Wang Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/en_rx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c index 96724170308a..5535862f27cc 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -783,6 +783,7 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud PKT_HASH_TYPE_L3); skb_record_rx_queue(gro_skb, cq->ring); + skb_mark_napi_id(gro_skb, &cq->napi); if (ring->hwtstamp_rx_filter == HWTSTAMP_FILTER_ALL) { timestamp = mlx4_en_get_cqe_ts(cqe); -- 2.20.1