From: Tariq Toukan Date: Sun, 7 Jan 2018 12:15:02 +0000 (+0200) Subject: net/mlx5e: Do not busy-wait for UMR completion in Striding RQ X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e4d86a4a58b436fca0ce084ea453cc0ec8c39bb4;p=linux.git net/mlx5e: Do not busy-wait for UMR completion in Striding RQ Do not busy-wait a pending UMR completion. Under high HW load, busy-waiting a delayed completion would fully utilize the CPU core and mistakenly indicate a SW bottleneck. Signed-off-by: Tariq Toukan Signed-off-by: Saeed Mahameed --- diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c index 8aa94d3cff59b..8eb9e7e89b091 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c @@ -527,7 +527,7 @@ bool mlx5e_post_rx_mpwqes(struct mlx5e_rq *rq) if (!rq->mpwqe.umr_in_progress) mlx5e_alloc_rx_mpwqe(rq, wq->head); - return true; + return false; } static void mlx5e_lro_update_tcp_hdr(struct mlx5_cqe64 *cqe, struct tcphdr *tcp)