From 39e12351a308fe022930d0423d88e3aedde795b1 Mon Sep 17 00:00:00 2001 From: Saeed Mahameed Date: Sat, 25 Mar 2017 00:52:09 +0300 Subject: [PATCH] net/mlx5e: Poll XDP TX CQ before RX CQ Handle XDP TX completions before handling RX packets, to make sure more free space is available for XDP TX packets a moment before handling RX packets. Performance improvement: System: Intel(R) Xeon(R) CPU E5-2620 v3 @ 2.40GHz Test case Before Now improvement --------------------------------------------------------------- XDP Drop (1 core) 16.9Mpps 16.9Mpps No change XDP TX (1 core) 12Mpps 13Mpps 8% Signed-off-by: Saeed Mahameed Reviewed-by: Tariq Toukan Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c index 9beeb4a..c880022 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c @@ -118,12 +118,12 @@ int mlx5e_napi_poll(struct napi_struct *napi, int budget) for (i = 0; i < c->num_tc; i++) busy |= mlx5e_poll_tx_cq(&c->sq[i].cq, budget); - work_done = mlx5e_poll_rx_cq(&c->rq.cq, budget); - busy |= work_done == budget; - if (c->xdp) busy |= mlx5e_poll_xdpsq_cq(&c->rq.xdpsq.cq); + work_done = mlx5e_poll_rx_cq(&c->rq.cq, budget); + busy |= work_done == budget; + mlx5e_poll_ico_cq(&c->icosq.cq); busy |= mlx5e_post_rx_wqes(&c->rq); -- 2.7.4