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authorDragos Tatulea <dtatulea@nvidia.com>2022-11-28 15:24:21 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-01-12 12:00:35 +0100
commitd0fe3d9e5f70b95f663704e51d4590926d0c9f49 (patch)
treec992be623252be8d44a4a10148ebff195dd80b73
parenta6f3e37a5cd7e232b8762c4799a1bb4c4c0182aa (diff)
net/mlx5e: IPoIB, Don't allow CQE compression to be turned on by default
[ Upstream commit b12d581e83e3ae1080c32ab83f123005bd89a840 ] mlx5e_build_nic_params will turn CQE compression on if the hardware capability is enabled and the slow_pci_heuristic condition is detected. As IPoIB doesn't support CQE compression, make sure to disable the feature in the IPoIB profile init. Please note that the feature is not exposed to the user for IPoIB interfaces, so it can't be subsequently turned on. Fixes: b797a684b0dd ("net/mlx5e: Enable CQE compression when PCI is slower than link") Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com> Reviewed-by: Gal Pressman <gal@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
index c02b7b08fb4c..2032d5c0ad86 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
@@ -70,6 +70,10 @@ static void mlx5i_build_nic_params(struct mlx5_core_dev *mdev,
params->packet_merge.type = MLX5E_PACKET_MERGE_NONE;
params->hard_mtu = MLX5_IB_GRH_BYTES + MLX5_IPOIB_HARD_LEN;
params->tunneled_offload_en = false;
+
+ /* CQE compression is not supported for IPoIB */
+ params->rx_cqe_compress_def = false;
+ MLX5E_SET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS, params->rx_cqe_compress_def);
}
/* Called directly after IPoIB netdevice was created to initialize SW structs */