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net/mlx5: E-switch, Destroy legacy fdb table when needed 

[ Upstream commit 2318b8bb94 ]

The cited commit removes eswitch mode none. But when disabling
sriov in legacy mode or changing from switchdev to legacy mode
without sriov enabled, the legacy fdb table is not destroyed.

It is not the right behavior. Destroy legacy fdb table in above
two caes.

Fixes: f019679ea5 ("net/mlx5: E-switch, Remove dependency between sriov and eswitch mode")
Signed-off-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chris Mi 2022-11-17 09:48:13 +02:00 committed by Greg Kroah-Hartman
parent 70299a7027
commit e9a2ac40b5
2 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
View File

@ -1363,6 +1363,9 @@ void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw, bool clear_vf)
esw_offloads_del_send_to_vport_meta_rules(esw);
devl_rate_nodes_destroy(devlink);
}
/* Destroy legacy fdb when disabling sriov in legacy mode. */
if (esw->mode == MLX5_ESWITCH_LEGACY)
mlx5_eswitch_disable_locked(esw);
esw->esw_funcs.num_vfs = 0;

7
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
View File

@ -3270,6 +3270,13 @@ static int esw_offloads_stop(struct mlx5_eswitch *esw,
int err;
esw->mode = MLX5_ESWITCH_LEGACY;
/* If changing from switchdev to legacy mode without sriov enabled,
* no need to create legacy fdb.
*/
if (!mlx5_sriov_is_enabled(esw->dev))
return 0;
err = mlx5_eswitch_enable_locked(esw, MLX5_ESWITCH_IGNORE_NUM_VFS);
if (err)
NL_SET_ERR_MSG_MOD(extack, "Failed setting eswitch to legacy");