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net/mlx5e: Replace egdev with indirect block notifications

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Use TC indirect block notifications to offload filters that
are configured on higher level device interfaces (e.g. tunnel
devices). This mechanism replaces the current egdev implementation.

Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Reviewed-by: Eli Britstein <elibr@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Oz Shlomo 2018-10-28 13:03:54 +02:00 committed by Saeed Mahameed
parent d11afc2600
commit ef381359e3
2 changed files with 36 additions and 25 deletions
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47
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
View File

@ -561,7 +561,27 @@ mlx5e_rep_indr_offload(struct net_device *netdev,
struct tc_cls_flower_offload *flower,
struct mlx5e_rep_indr_block_priv *indr_priv)
{
return -EOPNOTSUPP;
int err = 0;
struct mlx5e_priv *priv = netdev_priv(indr_priv->rpriv->netdev);
switch (flower->command) {
case TC_CLSFLOWER_REPLACE:
err = mlx5e_configure_flower(netdev, priv,
flower, MLX5E_TC_EGRESS);
break;
case TC_CLSFLOWER_DESTROY:
err = mlx5e_delete_flower(netdev, priv,
flower, MLX5E_TC_EGRESS);
break;
case TC_CLSFLOWER_STATS:
err = mlx5e_stats_flower(netdev, priv,
flower, MLX5E_TC_EGRESS);
break;
default:
err = -EOPNOTSUPP;
}
return err;
}
static int mlx5e_rep_indr_setup_block_cb(enum tc_setup_type type,
@ -1020,19 +1040,6 @@ mlx5e_rep_setup_tc_cls_flower(struct mlx5e_priv *priv,
}
}
static int mlx5e_rep_setup_tc_cb_egdev(enum tc_setup_type type, void *type_data,
void *cb_priv)
{
struct mlx5e_priv *priv = cb_priv;
switch (type) {
case TC_SETUP_CLSFLOWER:
return mlx5e_rep_setup_tc_cls_flower(priv, type_data, MLX5E_TC_EGRESS);
default:
return -EOPNOTSUPP;
}
}
static int mlx5e_rep_setup_tc_cb(enum tc_setup_type type, void *type_data,
void *cb_priv)
{
@ -1516,24 +1523,16 @@ mlx5e_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
uplink_rpriv = mlx5_eswitch_get_uplink_priv(dev->priv.eswitch, REP_ETH);
upriv = netdev_priv(uplink_rpriv->netdev);
err = tc_setup_cb_egdev_register(netdev, mlx5e_rep_setup_tc_cb_egdev,
upriv);
if (err)
goto err_neigh_cleanup;
err = register_netdev(netdev);
if (err) {
pr_warn("Failed to register representor netdev for vport %d\n",
rep->vport);
goto err_egdev_cleanup;
goto err_neigh_cleanup;
}
return 0;
err_egdev_cleanup:
tc_setup_cb_egdev_unregister(netdev, mlx5e_rep_setup_tc_cb_egdev,
upriv);
err_neigh_cleanup:
mlx5e_rep_neigh_cleanup(rpriv);
@ -1560,8 +1559,6 @@ mlx5e_vport_rep_unload(struct mlx5_eswitch_rep *rep)
uplink_rpriv = mlx5_eswitch_get_uplink_priv(priv->mdev->priv.eswitch,
REP_ETH);
upriv = netdev_priv(uplink_rpriv->netdev);
tc_setup_cb_egdev_unregister(netdev, mlx5e_rep_setup_tc_cb_egdev,
upriv);
mlx5e_rep_neigh_cleanup(rpriv);
mlx5e_detach_netdev(priv);
mlx5e_destroy_netdev(priv);

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

@ -2906,6 +2906,13 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
struct net_device *out_dev;
out_dev = tcf_mirred_dev(a);
if (!out_dev) {
/* out_dev is NULL when filters with
* non-existing mirred device are replayed to
* the driver.
*/
return -EINVAL;
}
if (attr->out_count >= MLX5_MAX_FLOW_FWD_VPORTS) {
NL_SET_ERR_MSG_MOD(extack,
@ -2932,6 +2939,13 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
MLX5_FLOW_CONTEXT_ACTION_FWD_DEST |
MLX5_FLOW_CONTEXT_ACTION_COUNT;
/* attr->out_rep is resolved when we handle encap */
} else if (parse_attr->filter_dev != priv->netdev) {
/* All mlx5 devices are called to configure
* high level device filters. Therefore, the
* *attempt* to install a filter on invalid
* eswitch should not trigger an explicit error
*/
return -EINVAL;
} else {
NL_SET_ERR_MSG_MOD(extack,
"devices are not on same switch HW, can't offload forwarding");