diff options
| author | Eric Dumazet <edumazet@google.com> | 2014-10-05 12:35:11 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-06 01:04:15 -0400 |
| commit | 6a4e81211f475561ed87c613216f981fbef8b7fc (patch) | |
| tree | ced59807448f488d408e5fe28a89b563357676bb /drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | |
| parent | 98b1634941e3efb0334f794efc79702839993d86 (diff) | |
net/mlx4_en: Avoid calling bswap in tx fast path
- doorbell_qpn is stored in the cpu_to_be32() way to avoid bswap() in fast
path.
- mdev->mr.key stored in ring->mr_key to also avoid bswap() and access to
cold cache line.
Signed-off-by: Eric Dumazet <edumazet@google.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 | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h index b7bde95e05fe..ab34461e628c 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h @@ -279,7 +279,8 @@ struct mlx4_en_tx_ring { u16 stride; u16 cqn; /* index of port CQ associated with this ring */ u32 buf_size; - u32 doorbell_qpn; + __be32 doorbell_qpn; + __be32 mr_key; void *buf; struct mlx4_en_tx_info *tx_info; u8 *bounce_buf; |