diff options
| author | Ido Shamay <idos@mellanox.com> | 2014-11-02 17:26:15 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-11-03 20:28:13 +0300 |
| commit | 5f6e9800804758de367132a0fe9b85865d24f89b (patch) | |
| tree | 217874cd459ec8c75be4b3507c9fb31fed281d60 /drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | |
| parent | 0a98455666ec87378148a1dde97f1ce5baf75a64 (diff) | |
| download | linux-5f6e9800804758de367132a0fe9b85865d24f89b.tar.xz | |
net/mlx4_en: Remove RX buffers alignment to IP_ALIGN
When IP_ALIGN has a non zero value, hardware will write to a non aligned
address. The only reader from this address is when copying the header
from the first frag into the linear buffer (further access to the IP
address will be from the linear buffer, in which the headers are
aligned). Since the penalty of non align access by the hardware is
greater than the software memcpy, changing the frag_align to always be 0.
Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/mlx4_en.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h index 6beb4d34dce0..ef83d127f406 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h @@ -481,7 +481,6 @@ struct mlx4_en_frag_info { u16 frag_size; u16 frag_prefix_size; u16 frag_stride; - u16 frag_align; }; #ifdef CONFIG_MLX4_EN_DCB |