Commit 88c9483f authored by Maher Sanalla's avatar Maher Sanalla Committed by Leon Romanovsky
Browse files

IB/mlx5: Add support for 400G_8X lane speed 



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: 08e8676f ("IB/mlx5: Add support for 50Gbps per lane link modes")
Signed-off-by: default avatarMaher Sanalla <msanalla@nvidia.com>
Reviewed-by: default avatarAya Levin <ayal@nvidia.com>
Reviewed-by: default avatarSaeed Mahameed <saeedm@nvidia.com>
Link: https://lore.kernel.org/r/ec9040548d119d22557d6a4b4070d6f421701fd4.1678973994.git.leon@kernel.org


Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
parent e4522c09

drivers/infiniband/hw/mlx5/main.c

+4 −0
Original line number Diff line number Diff line
@@ -442,6 +442,10 @@ 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;