diff options
| author | Tariq Toukan <tariqt@mellanox.com> | 2019-01-22 16:25:50 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-01-25 08:54:13 +0300 |
| commit | 5e5b9f6272f2c537c43bc80607079cdf8fdb50aa (patch) | |
| tree | dd5a519de58a5f74ea990c5614f20926527d2418 /drivers | |
| parent | 254764e55652d47fe81a54d7c226f3ba230180fe (diff) | |
| download | linux-5e5b9f6272f2c537c43bc80607079cdf8fdb50aa.tar.xz | |
net/mlx4_core: A write memory barrier is sufficient in EQ ci update
Soften the memory barrier call of mb() by a sufficient wmb() in the
consumer index update of the event queues.
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/eq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c index 2f4201023836..a5be27772b8e 100644 --- a/drivers/net/ethernet/mellanox/mlx4/eq.c +++ b/drivers/net/ethernet/mellanox/mlx4/eq.c @@ -100,7 +100,7 @@ static void eq_set_ci(struct mlx4_eq *eq, int req_not) req_not << 31), eq->doorbell); /* We still want ordering, just not swabbing, so add a barrier */ - mb(); + wmb(); } static struct mlx4_eqe *get_eqe(struct mlx4_eq *eq, u32 entry, u8 eqe_factor, |