net/mlx4_en: Avoid false sharing in mlx4_en_en_process_tx_cq()

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mlx4_en_process_tx_cq() carefully fetches and writes ring->last_nr_txbb
and ring->cons only one time to avoid false sharing

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 12:35:15 +03:00 • committed by David S. Miller

parent 29d40c9032

commit fb1843ee72

1 changed files with 15 additions and 7 deletions

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22

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

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