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authorTariq Toukan <tariqt@mellanox.com>2018-12-16 17:20:31 +0200
committerSaeed Mahameed <saeedm@mellanox.com>2019-04-05 14:10:35 -0700
commit98df6d5b877c26012bbafcf07ff51326db4ef3f7 (patch)
tree390631e1606bc0a74d9c7525863af26741fb5014 /drivers/net
parent27c11b6b844cd9473330ff29ddb55a535d2dd14a (diff)
net/mlx5: 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. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/eq.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index 46a747f7c162..e9837aeb7088 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -707,7 +707,7 @@ void mlx5_eq_update_ci(struct mlx5_eq *eq, u32 cc, bool arm)
__raw_writel((__force u32)cpu_to_be32(val), addr);
/* We still want ordering, just not swabbing, so add a barrier */
- mb();
+ wmb();
}
EXPORT_SYMBOL(mlx5_eq_update_ci);