net: dsa: bcm_sf2: Add support for ethtool::rxnfc
Add support for configuring classification rules using the
ethtool::rxnfc API. This is useful to program the switch's CFP/TCAM to
redirect specific packets to specific ports/queues for instance. For
now, we allow any kind of IPv4 5-tuple matching.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index 637072d..be282b4 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -1045,6 +1045,8 @@ static const struct dsa_switch_ops bcm_sf2_ops = {
.port_fdb_dump = b53_fdb_dump,
.port_fdb_add = b53_fdb_add,
.port_fdb_del = b53_fdb_del,
+ .get_rxnfc = bcm_sf2_get_rxnfc,
+ .set_rxnfc = bcm_sf2_set_rxnfc,
};
struct bcm_sf2_of_data {
@@ -1168,6 +1170,12 @@ static int bcm_sf2_sw_probe(struct platform_device *pdev)
spin_lock_init(&priv->indir_lock);
mutex_init(&priv->stats_mutex);
+ mutex_init(&priv->cfp.lock);
+
+ /* CFP rule #0 cannot be used for specific classifications, flag it as
+ * permanently used
+ */
+ set_bit(0, priv->cfp.used);
bcm_sf2_identify_ports(priv, dn->child);
@@ -1197,6 +1205,12 @@ static int bcm_sf2_sw_probe(struct platform_device *pdev)
return ret;
}
+ ret = bcm_sf2_cfp_rst(priv);
+ if (ret) {
+ pr_err("failed to reset CFP\n");
+ goto out_mdio;
+ }
+
/* Disable all interrupts and request them */
bcm_sf2_intr_disable(priv);