From aed4d4c663384aa8443ce56988fa4858a5c606dc Mon Sep 17 00:00:00 2001 From: Tariq Toukan Date: Wed, 26 Aug 2020 15:54:18 +0300 Subject: net/mlx4_en: RX, Add a prefetch command for small L1_CACHE_BYTES A single cacheline might not contain the packet header for small L1_CACHE_BYTES values. Use net_prefetch() as it issues an additional prefetch in this case. Signed-off-by: Tariq Toukan Reviewed-by: Saeed Mahameed Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/en_rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c index b50c567ef508..99d7737e8ad6 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -705,7 +705,7 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud frags = ring->rx_info + (index << priv->log_rx_info); va = page_address(frags[0].page) + frags[0].page_offset; - prefetchw(va); + net_prefetchw(va); /* * make sure we read the CQE after we read the ownership bit */ -- cgit v1.2.3