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net/mlx5: E-switch, Reduce dependency on num_vfs during mode set 

Currently only ECPF allows enabling eswitch when SR-IOV is disabled.

Enable PF also to enable eswitch when SR-IOV is disabled.
Load VF vports when eswitch is already enabled.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Parav Pandit 2020-06-26 23:15:12 +03:00 committed by Saeed Mahameed
parent 3d5f41ca01
commit ea2128fd63
2 changed files with 13 additions and 14 deletions
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13
drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
View File

@ -1652,7 +1652,17 @@ int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int num_vfs)
return 0;
mutex_lock(&esw->mode_lock);
ret = mlx5_eswitch_enable_locked(esw, MLX5_ESWITCH_LEGACY, num_vfs);
if (esw->mode == MLX5_ESWITCH_NONE) {
ret = mlx5_eswitch_enable_locked(esw, MLX5_ESWITCH_LEGACY, num_vfs);
} else {
enum mlx5_eswitch_vport_event vport_events;
vport_events = (esw->mode == MLX5_ESWITCH_LEGACY) ?
MLX5_LEGACY_SRIOV_VPORT_EVENTS : MLX5_VPORT_UC_ADDR_CHANGE;
ret = mlx5_eswitch_load_vf_vports(esw, num_vfs, vport_events);
if (!ret)
esw->esw_funcs.num_vfs = num_vfs;
}
mutex_unlock(&esw->mode_lock);
return ret;
}
@ -1699,6 +1709,7 @@ void mlx5_eswitch_disable(struct mlx5_eswitch *esw, bool clear_vf)
mutex_lock(&esw->mode_lock);
mlx5_eswitch_disable_locked(esw, clear_vf);
esw->esw_funcs.num_vfs = 0;
mutex_unlock(&esw->mode_lock);
}

14
drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
View File

@ -1578,13 +1578,6 @@ static int esw_offloads_start(struct mlx5_eswitch *esw,
{
int err, err1;
if (esw->mode != MLX5_ESWITCH_LEGACY &&
!mlx5_core_is_ecpf_esw_manager(esw->dev)) {
NL_SET_ERR_MSG_MOD(extack,
"Can't set offloads mode, SRIOV legacy not enabled");
return -EINVAL;
}
mlx5_eswitch_disable_locked(esw, false);
err = mlx5_eswitch_enable_locked(esw, MLX5_ESWITCH_OFFLOADS,
esw->dev->priv.sriov.num_vfs);
@ -2293,7 +2286,7 @@ int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
{
u16 cur_mlx5_mode, mlx5_mode = 0;
struct mlx5_eswitch *esw;
int err;
int err = 0;
esw = mlx5_devlink_eswitch_get(devlink);
if (IS_ERR(esw))
@ -2303,12 +2296,7 @@ int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
return -EINVAL;
mutex_lock(&esw->mode_lock);
err = eswitch_devlink_esw_mode_check(esw);
if (err)
goto unlock;
cur_mlx5_mode = esw->mode;
if (cur_mlx5_mode == mlx5_mode)
goto unlock;