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net/mlx5e: Add missing capability check for uplink follow

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Expose firmware indication that it supports setting eswitch uplink state
to follow (follow the physical link). Condition setting the eswitch
uplink admin-state with this capability bit. Older FW may not support
the uplink state setting.

Fixes: 7d0314b11c ("net/mlx5e: Modify uplink state on interface up/down")
Signed-off-by: Aya Levin <ayal@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Aya Levin 2020-11-24 22:16:23 +02:00 committed by Saeed Mahameed
parent abf8ef953a
commit 9c9be85f6b
2 changed files with 4 additions and 2 deletions
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3
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
View File

@ -3161,7 +3161,8 @@ static void mlx5e_modify_admin_state(struct mlx5_core_dev *mdev,
mlx5_set_port_admin_status(mdev, state);
if (mlx5_eswitch_mode(mdev) != MLX5_ESWITCH_LEGACY)
if (mlx5_eswitch_mode(mdev) == MLX5_ESWITCH_OFFLOADS ||
!MLX5_CAP_GEN(mdev, uplink_follow))
return;
if (state == MLX5_PORT_UP)

3
include/linux/mlx5/mlx5_ifc.h
View File

@ -1280,7 +1280,8 @@ struct mlx5_ifc_cmd_hca_cap_bits {
u8 ece_support[0x1];
u8 reserved_at_a4[0x7];
u8 log_max_srq[0x5];
u8 reserved_at_b0[0x2];
u8 reserved_at_b0[0x1];
u8 uplink_follow[0x1];
u8 ts_cqe_to_dest_cqn[0x1];
u8 reserved_at_b3[0xd];