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net/mlx5e: Copy all L2 headers into inline segment 

ConnectX4-Lx uses an inline wqe mode that currently defaults to
requiring the entire L2 header be included in the wqe.
This patch fixes mlx5e_get_inline_hdr_size() to account for
all L2 headers (VLAN, QinQ, etc) using skb_network_offset(skb).

Fixes: e586b3b0ba ("net/mlx5: Ethernet Datapath files")
Signed-off-by: Matthew Finlay <matt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Matthew Finlay 2016-06-30 17:34:47 +03:00 committed by David S. Miller
parent 6cd392a082
commit e3a19b53cb
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
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@ -123,7 +123,7 @@ 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
#define MLX5E_MIN_INLINE (ETH_HLEN + VLAN_HLEN)
if (bf) {
u16 ihs = skb_headlen(skb);
@ -135,7 +135,7 @@ static inline u16 mlx5e_get_inline_hdr_size(struct mlx5e_sq *sq,
return skb_headlen(skb);
}
return MLX5E_MIN_INLINE;
return max(skb_network_offset(skb), MLX5E_MIN_INLINE);
}
static inline void mlx5e_tx_skb_pull_inline(unsigned char **skb_data,