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IB/mlx5: Add support for 400G_8X lane speed

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[ Upstream commit 88c9483faf15ada14eca82714114656893063458 ]

Currently, when driver queries PTYS to report which link speed is being
used on its RoCE ports, it does not check the case of having 400Gbps
transmitted over 8 lanes. Thus it fails to report the said speed and
instead it defaults to report 10G over 4 lanes.

Add a check for the said speed when querying PTYS and report it back
correctly when needed.

Fixes: 08e8676f16 ("IB/mlx5: Add support for 50Gbps per lane link modes")
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Link: https://lore.kernel.org/r/ec9040548d119d22557d6a4b4070d6f421701fd4.1678973994.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Maher Sanalla 2023-03-16 15:40:49 +02:00 committed by Greg Kroah-Hartman
parent a1d2fb5d13
commit 5e567fd296
1 changed files with 4 additions and 0 deletions
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4
drivers/infiniband/hw/mlx5/main.c
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@ -437,6 +437,10 @@ static int translate_eth_ext_proto_oper(u32 eth_proto_oper, u16 *active_speed,
*active_width = IB_WIDTH_2X;
*active_speed = IB_SPEED_NDR;
break;
case MLX5E_PROT_MASK(MLX5E_400GAUI_8):
*active_width = IB_WIDTH_8X;
*active_speed = IB_SPEED_HDR;
break;
case MLX5E_PROT_MASK(MLX5E_400GAUI_4_400GBASE_CR4_KR4):
*active_width = IB_WIDTH_4X;
*active_speed = IB_SPEED_NDR;