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Message-Id: <20230216000918.235103-2-saeed@kernel.org> Date: Wed, 15 Feb 2023 16:09:10 -0800 From: Saeed Mahameed <saeed@...nel.org> To: "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com> Cc: Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org, Tariq Toukan <tariqt@...dia.com>, Gal Pressman <gal@...dia.com> Subject: [net-next 1/9] net/mlx5e: Switch to using napi_build_skb() From: Tariq Toukan <tariqt@...dia.com> Use napi_build_skb() which uses NAPI percpu caches to obtain skbuff_head instead of inplace allocation. napi_build_skb() calls napi_skb_cache_get(), which returns a cached skb, or allocates a bulk of NAPI_SKB_CACHE_BULK (16) if cache is empty. Performance test: TCP single stream, single ring, single core, default MTU (1500B). Before: 26.5 Gbits/sec After: 30.1 Gbits/sec (+13.6%) Signed-off-by: Tariq Toukan <tariqt@...dia.com> Reviewed-by: Gal Pressman <gal@...dia.com> Signed-off-by: Saeed Mahameed <saeedm@...dia.com> --- drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c index a9473a51edc1..9ac2c7778b5b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c @@ -1556,7 +1556,7 @@ struct sk_buff *mlx5e_build_linear_skb(struct mlx5e_rq *rq, void *va, u32 frag_size, u16 headroom, u32 cqe_bcnt, u32 metasize) { - struct sk_buff *skb = build_skb(va, frag_size); + struct sk_buff *skb = napi_build_skb(va, frag_size); if (unlikely(!skb)) { rq->stats->buff_alloc_err++; -- 2.39.1
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