Commit 2ac99ed9 authored by Daniel Machon's avatar Daniel Machon Committed by David S. Miller
Browse files

net: sparx5: add the tc glue to support port mirroring 



Add the necessary tc glue to add and delete mirror rules through tc
matchall.

Signed-off-by: default avatarDaniel Machon <daniel.machon@microchip.com>
Reviewed-by: default avatarSteen Hegelund <Steen.Hegelund@microchip.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 4e50d72b

drivers/net/ethernet/microchip/sparx5/sparx5_tc_matchall.c

+36 −2
Original line number Diff line number Diff line
@@ -36,6 +36,13 @@ static void sparx5_tc_matchall_parse_action(struct sparx5_port *port, 
	entry->cookie = cookie;

}



static void

sparx5_tc_matchall_parse_mirror_action(struct sparx5_mall_entry *entry,

				       struct flow_action_entry *action)

{

	entry->mirror.port = netdev_priv(action->dev);

}



static int sparx5_tc_matchall_replace(struct net_device *ndev,

				      struct tc_cls_matchall_offload *tmo,

				      bool ingress)
@@ -65,6 +72,31 @@ static int sparx5_tc_matchall_replace(struct net_device *ndev, 


	sparx5 = port->sparx5;

	switch (action->id) {

	case FLOW_ACTION_MIRRED:

		sparx5_tc_matchall_parse_mirror_action(mall_entry, action);

		err = sparx5_mirror_add(mall_entry);

		if (err) {

			switch (err) {

			case -EEXIST:

				NL_SET_ERR_MSG_MOD(tmo->common.extack,

						   "Mirroring already exists");

				break;

			case -EINVAL:

				NL_SET_ERR_MSG_MOD(tmo->common.extack,

						   "Cannot mirror a monitor port");

				break;

			case -ENOENT:

				NL_SET_ERR_MSG_MOD(tmo->common.extack,

						   "No more mirror probes available");

				break;

			default:

				NL_SET_ERR_MSG_MOD(tmo->common.extack,

						   "Unknown error");

				break;

			}

			return err;

		}

		break;

	case FLOW_ACTION_GOTO:

		err = vcap_enable_lookups(sparx5->vcap_ctrl, ndev,

					  tmo->common.chain_index,
@@ -108,14 +140,16 @@ static int sparx5_tc_matchall_destroy(struct net_device *ndev, 
	struct sparx5_port *port = netdev_priv(ndev);

	struct sparx5 *sparx5 = port->sparx5;

	struct sparx5_mall_entry *entry;

	int err;

	int err = 0;



	entry = sparx5_tc_matchall_entry_find(&sparx5->mall_entries,

					      tmo->cookie);

	if (!entry)

		return -ENOENT;



	if (entry->type == FLOW_ACTION_GOTO) {

	if (entry->type == FLOW_ACTION_MIRRED) {

		sparx5_mirror_del(entry);

	} else if (entry->type == FLOW_ACTION_GOTO) {

		err = vcap_enable_lookups(sparx5->vcap_ctrl, ndev,

					  0, 0, tmo->cookie, false);

	} else {