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net/mlx5: LAG, block multiport eswitch LAG in case ldev have more than 2 ports

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multiport eswitch LAG is not supported over more than two ports. Add a check in
order to block multiport eswitch LAG over such devices.

Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Shay Drory
2023-06-06 00:12:11 -07:00
committed by Saeed Mahameed
parent d61bab3961
commit 7718c1c8ac
1 changed files with 4 additions and 0 deletions
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4
drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c
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@@ -65,6 +65,7 @@ static int mlx5_mpesw_metadata_set(struct mlx5_lag *ldev)
return err;
}
#define MLX5_LAG_MPESW_OFFLOADS_SUPPORTED_PORTS 2
static int enable_mpesw(struct mlx5_lag *ldev)
{
struct mlx5_core_dev *dev0 = ldev->pf[MLX5_LAG_P1].dev;
@@ -74,6 +75,9 @@ static int enable_mpesw(struct mlx5_lag *ldev)
if (ldev->mode != MLX5_LAG_MODE_NONE)
return -EINVAL;
if (ldev->ports > MLX5_LAG_MPESW_OFFLOADS_SUPPORTED_PORTS)
return -EOPNOTSUPP;
if (mlx5_eswitch_mode(dev0) != MLX5_ESWITCH_OFFLOADS ||
!MLX5_CAP_PORT_SELECTION(dev0, port_select_flow_table) ||
!MLX5_CAP_GEN(dev0, create_lag_when_not_master_up) ||