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: 08e8676f1607 ("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>

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 5b988db66b8fdb90c8c9303bbe29d4d3ec6f0a54..5d45de223c43a9afed62a70265b9e32d75db4e10 100644 (file)
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -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;