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From: Jesper Dangaard Brouer <brouer@redhat.com>
To: netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>
Cc: saeedm@mellanox.com, gerlitz.or@gmail.com, eugenia@mellanox.com,
	Alexander Duyck <alexander.duyck@gmail.com>,
	Jesper Dangaard Brouer <brouer@redhat.com>
Subject: [net-next PATCH V1 2/3] mlx4: use napi_alloc_skb API to get SKB bulk allocations
Date: Mon, 09 May 2016 15:44:34 +0200	[thread overview]
Message-ID: <20160509134434.3573.87133.stgit@firesoul> (raw)
In-Reply-To: <20160509134352.3573.37044.stgit@firesoul>

Activate the bulk alloc API, simply by changing mlx4 from using
netdev_alloc_skb() to using napi_alloc_skb().

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
---
 drivers/net/ethernet/mellanox/mlx4/en_rx.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 8ef6875b6cf9..84fd6db5a176 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -577,14 +577,15 @@ fail:
 static struct sk_buff *mlx4_en_rx_skb(struct mlx4_en_priv *priv,
 				      struct mlx4_en_rx_desc *rx_desc,
 				      struct mlx4_en_rx_alloc *frags,
-				      unsigned int length)
+				      unsigned int length,
+				      struct napi_struct *napi)
 {
 	struct sk_buff *skb;
 	void *va;
 	int used_frags;
 	dma_addr_t dma;
 
-	skb = netdev_alloc_skb(priv->dev, SMALL_PACKET_SIZE + NET_IP_ALIGN);
+	skb = napi_alloc_skb(napi, SMALL_PACKET_SIZE + NET_IP_ALIGN);
 	if (!skb) {
 		en_dbg(RX_ERR, priv, "Failed allocating skb\n");
 		return NULL;
@@ -932,7 +933,7 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud
 		}
 
 		/* GRO not possible, complete processing here */
-		skb = mlx4_en_rx_skb(priv, rx_desc, frags, length);
+		skb = mlx4_en_rx_skb(priv, rx_desc, frags, length, &cq->napi);
 		if (!skb) {
 			ring->dropped++;
 			goto next;

  parent reply	other threads:[~2016-05-09 13:44 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-09 13:44 [net-next PATCH V1 0/3] net: enable use of kmem_cache_alloc_bulk in network stack Jesper Dangaard Brouer
2016-05-09 13:44 ` [net-next PATCH V1 1/3] net: bulk alloc and reuse of SKBs in NAPI context Jesper Dangaard Brouer
2016-05-09 16:20   ` Alexander Duyck
2016-05-09 19:59     ` Jesper Dangaard Brouer
2016-05-09 20:46       ` Alexander Duyck
2016-05-10  9:29         ` Jesper Dangaard Brouer
2016-05-10 12:30         ` Jesper Dangaard Brouer
2016-05-10 13:48           ` Eric Dumazet
2016-05-10 14:48             ` Jesper Dangaard Brouer
2016-05-10 15:44               ` Eric Dumazet
2016-05-10 17:46           ` Alexander Duyck
2016-05-09 13:44 ` Jesper Dangaard Brouer [this message]
2016-05-09 16:47   ` [net-next PATCH V1 2/3] mlx4: use napi_alloc_skb API to get SKB bulk allocations Alexander Duyck
2016-05-09 20:05     ` Jesper Dangaard Brouer
2016-05-09 13:44 ` [net-next PATCH V1 3/3] net: warn on napi_alloc_skb being called in wrong context Jesper Dangaard Brouer
2016-05-09 13:53   ` Sergei Shtylyov
2016-05-09 13:53   ` Sergei Shtylyov
2016-05-09 16:33   ` Alexander Duyck
2016-05-09 20:03     ` Jesper Dangaard Brouer
2016-05-20  8:14 ` [net-next PATCH V1 0/3] net: enable use of kmem_cache_alloc_bulk in network stack Jesper Dangaard Brouer

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