This switch is providing forwarding matrix, with it we can configure
individual bridges. Potentially we can configure more then one not VLAN
based bridge on this HW.

Signed-off-by: Oleksij Rempel <o.rem...@pengutronix.de>
---
 drivers/net/dsa/qca/ar9331.c | 73 ++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)

diff --git a/drivers/net/dsa/qca/ar9331.c b/drivers/net/dsa/qca/ar9331.c
index b2c22ba924f0..bf9588574205 100644
--- a/drivers/net/dsa/qca/ar9331.c
+++ b/drivers/net/dsa/qca/ar9331.c
@@ -40,6 +40,7 @@
  */
 
 #include <linux/bitfield.h>
+#include <linux/if_bridge.h>
 #include <linux/module.h>
 #include <linux/of_irq.h>
 #include <linux/of_mdio.h>
@@ -1134,6 +1135,76 @@ static int ar9331_sw_set_ageing_time(struct dsa_switch 
*ds,
                                  val);
 }
 
+static int ar9331_sw_port_bridge_join(struct dsa_switch *ds, int port,
+                                     struct net_device *br)
+{
+       struct ar9331_sw_priv *priv = (struct ar9331_sw_priv *)ds->priv;
+       struct regmap *regmap = priv->regmap;
+       int port_mask = BIT(priv->cpu_port);
+       int i, ret;
+       u32 val;
+
+       for (i = 0; i < ds->num_ports; i++) {
+               if (dsa_to_port(ds, i)->bridge_dev != br)
+                       continue;
+
+               if (!dsa_is_user_port(ds, port))
+                       continue;
+
+               val = FIELD_PREP(AR9331_SW_PORT_VLAN_PORT_VID_MEMBER, 
BIT(port));
+               ret = regmap_set_bits(regmap, AR9331_SW_REG_PORT_VLAN(i), val);
+               if (ret)
+                       goto error;
+
+               if (i != port)
+                       port_mask |= BIT(i);
+       }
+
+       val = FIELD_PREP(AR9331_SW_PORT_VLAN_PORT_VID_MEMBER, port_mask);
+       ret = regmap_update_bits(regmap, AR9331_SW_REG_PORT_VLAN(port),
+                                AR9331_SW_PORT_VLAN_PORT_VID_MEMBER, val);
+       if (ret)
+               goto error;
+
+       return 0;
+error:
+       dev_err_ratelimited(priv->dev, "%s: error: %i\n", __func__, ret);
+
+       return ret;
+}
+
+static void ar9331_sw_port_bridge_leave(struct dsa_switch *ds, int port,
+                                       struct net_device *br)
+{
+       struct ar9331_sw_priv *priv = (struct ar9331_sw_priv *)ds->priv;
+       struct regmap *regmap = priv->regmap;
+       int i, ret;
+       u32 val;
+
+       for (i = 0; i < ds->num_ports; i++) {
+               if (dsa_to_port(ds, i)->bridge_dev != br)
+                       continue;
+
+               if (!dsa_is_user_port(ds, port))
+                       continue;
+
+               val = FIELD_PREP(AR9331_SW_PORT_VLAN_PORT_VID_MEMBER, 
BIT(port));
+               ret = regmap_clear_bits(regmap, AR9331_SW_REG_PORT_VLAN(i), 
val);
+               if (ret)
+                       goto error;
+       }
+
+       val = FIELD_PREP(AR9331_SW_PORT_VLAN_PORT_VID_MEMBER, 
BIT(priv->cpu_port));
+       ret = regmap_update_bits(regmap, AR9331_SW_REG_PORT_VLAN(port),
+                                AR9331_SW_PORT_VLAN_PORT_VID_MEMBER, val);
+       if (ret)
+               goto error;
+
+       return;
+error:
+       dev_err_ratelimited(priv->dev, "%s: error: %i\n", __func__, ret);
+}
+
 static const struct dsa_switch_ops ar9331_sw_ops = {
        .get_tag_protocol       = ar9331_sw_get_tag_protocol,
        .setup                  = ar9331_sw_setup,
@@ -1150,6 +1221,8 @@ static const struct dsa_switch_ops ar9331_sw_ops = {
        .port_mdb_add           = ar9331_sw_port_mdb_add,
        .port_mdb_del           = ar9331_sw_port_mdb_del,
        .set_ageing_time        = ar9331_sw_set_ageing_time,
+       .port_bridge_join       = ar9331_sw_port_bridge_join,
+       .port_bridge_leave      = ar9331_sw_port_bridge_leave,
 };
 
 static irqreturn_t ar9331_sw_irq(int irq, void *data)
-- 
2.29.2

Reply via email to