net/mlx4_en: Avoid calling bswap in tx fast path

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- 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>

...

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Eric Dumazet 2014-10-05 12:35:11 +03:00 • committed by David S. Miller

parent 98b1634941

commit 6a4e81211f

2 changed files with 12 additions and 8 deletions

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17

drivers/net/ethernet/mellanox/mlx4/en_tx.c

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3

drivers/net/ethernet/mellanox/mlx4/mlx4_en.h

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