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

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

Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Machon
2024-04-20 21:29:13 +02:00
committed by David S. Miller
parent 4e50d72b3b
commit 2ac99ed9c3
1 changed files with 36 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/net/ethernet/microchip/sparx5/sparx5_tc_matchall.c
+36 -2
View File
@@ -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 {