Commit 4a98970a authored by Dragos Tatulea's avatar Dragos Tatulea Committed by zhaoxiaoqiang11
Browse files

net/mlx5e: IPoIB, Don't allow CQE compression to be turned on by default 

stable inclusion
from stable-v5.10.163
commit 6d655a9d8251d1066104529c813ae138ed9f9de1
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7PJ9N

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=6d655a9d8251d1066104529c813ae138ed9f9de1



----------------------------------------------------

[ Upstream commit b12d581e ]

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: b797a684 ("net/mlx5e: Enable CQE compression when PCI is slower than link")
Signed-off-by: default avatarDragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: default avatarGal Pressman <gal@nvidia.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@nvidia.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarzhaoxiaoqiang11 <zhaoxiaoqiang11@jd.com>
parent 7065b774

drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c

+4 −0
Original line number Diff line number Diff line
@@ -69,6 +69,10 @@ static void mlx5i_build_nic_params(struct mlx5_core_dev *mdev, 
	params->lro_en = false;

	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 */