net/mlx5e: Fix LSO vlan insertion
authorAchiad Shochat <achiad@mellanox.com>
Tue, 3 Nov 2015 06:07:24 +0000 (08:07 +0200)
committerDavid S. Miller <davem@davemloft.net>
Tue, 3 Nov 2015 15:41:51 +0000 (10:41 -0500)
Consider vlan insertion impact on headers copy size also for LSO
packets.

Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/mellanox/mlx5/core/en_tx.c

index 51052886c70a4cb8fb85d82400c6fdd487c654be..cd8f85a251d7da5509c0651b6ab781ce1d152084 100644 (file)
@@ -116,7 +116,7 @@ static inline u16 mlx5e_get_inline_hdr_size(struct mlx5e_sq *sq,
         * headers and occur before the data gather.
         * Therefore these headers must be copied into the WQE
         */
-#define MLX5E_MIN_INLINE (ETH_HLEN + 2/*vlan tag*/)
+#define MLX5E_MIN_INLINE ETH_HLEN
 
        if (bf && (skb_headlen(skb) <= sq->max_inline))
                return skb_headlen(skb);
@@ -128,7 +128,7 @@ static inline void mlx5e_insert_vlan(void *start, struct sk_buff *skb, u16 ihs)
 {
        struct vlan_ethhdr *vhdr = (struct vlan_ethhdr *)start;
        int cpy1_sz = 2 * ETH_ALEN;
-       int cpy2_sz = ihs - cpy1_sz - VLAN_HLEN;
+       int cpy2_sz = ihs - cpy1_sz;
 
        skb_copy_from_linear_data(skb, vhdr, cpy1_sz);
        skb_pull_inline(skb, cpy1_sz);
@@ -192,6 +192,7 @@ static netdev_tx_t mlx5e_sq_xmit(struct mlx5e_sq *sq, struct sk_buff *skb)
 
        if (skb_vlan_tag_present(skb)) {
                mlx5e_insert_vlan(eseg->inline_hdr_start, skb, ihs);
+               ihs += VLAN_HLEN;
        } else {
                skb_copy_from_linear_data(skb, eseg->inline_hdr_start, ihs);
                skb_pull_inline(skb, ihs);