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| author | Tariq Toukan | 2016-02-29 20:17:09 +0100 |
|---|---|---|
| committer | David S. Miller | 2016-03-02 20:37:24 +0100 |
| commit | 59a7c2fd336eaafb030aac9c91ac21d136a99f33 (patch) | |
| tree | e9cdbc46b92857dab6df3b698ae24260b7851769 /drivers/net/ethernet/mellanox/mlx5/core/en_main.c | |
| parent | r8169: Enable RX_MULTI_EN for RTL_GIGA_MAC_VER_41~48 (diff) | |
| download | kernel-qcow2-linux-59a7c2fd336eaafb030aac9c91ac21d136a99f33.tar.gz kernel-qcow2-linux-59a7c2fd336eaafb030aac9c91ac21d136a99f33.tar.xz kernel-qcow2-linux-59a7c2fd336eaafb030aac9c91ac21d136a99f33.zip | |
net/mlx5e: Remove wrong poll CQ optimization
With the MLX5E_CQ_HAS_CQES optimization flag, the following buggy
flow might occur:
- Suppose RX is always busy, TX has a single packet every second.
- We poll a single TX cqe and clear its flag.
- We never arm it again as RX is always busy.
- TX CQ flag is never changed, and new TX cqes are not polled.
We revert this optimization.
Fixes: e586b3b0baee ('net/mlx5: Ethernet Datapath files')
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_main.c')
0 files changed, 0 insertions, 0 deletions