ar71xx: ar8216: tagged+untagged on ar8327 (#12181)

This allows tagged and untagged traffic together on the same port on ar8327
switch devices.

I looked at the first attempt to do this in r40777 (ar71xx: Fix tagged+untagged
operation on AR8327N (#12181)). I also set the vlan and port egress policies
like that change. But I change vlan_tagged in an less intrusive way. The
tagged/untagged decision is now based on the following rules:
- if vid != pvid then traffic is always tagged
- if vid == pvid then vlan_tagged stores if the traffic should be tagged

Tested on TP-Link WDR-3600 (ar8327N).

Signed-off-by: Valentin Spreckels <Valentin.Spreckels@Informatik.Uni-Oldenburg.DE>
SVN-Revision: 42653

diff --git a/target/linux/generic/files/drivers/net/phy/ar8216.c b/target/linux/generic/files/drivers/net/phy/ar8216.c
index 3efd460c7fd102d046570d3cb65cfe08c8ba55fc..bd6cc97d55639d7fd70d8bc77e73af0e7a3820fb 100644 (file)
--- a/target/linux/generic/files/drivers/net/phy/ar8216.c
+++ b/target/linux/generic/files/drivers/net/phy/ar8216.c
@@ -1748,7 +1748,7 @@ ar8327_vtu_load_vlan(struct ar8xxx_priv *priv, u32 vid, u32 port_mask)
                        mode = AR8327_VTU_FUNC0_EG_MODE_NOT;
                else if (priv->vlan == 0)
                        mode = AR8327_VTU_FUNC0_EG_MODE_KEEP;
-               else if (priv->vlan_tagged & BIT(i))
+               else if ((priv->vlan_tagged & BIT(i)) || (priv->vlan_id[priv->pvid[i]] != vid))
                        mode = AR8327_VTU_FUNC0_EG_MODE_TAG;
                else
                        mode = AR8327_VTU_FUNC0_EG_MODE_UNTAG;
@@ -1767,10 +1767,7 @@ ar8327_setup_port(struct ar8xxx_priv *priv, int port, u32 members)
 
        if (priv->vlan) {
                pvid = priv->vlan_id[priv->pvid[port]];
-               if (priv->vlan_tagged & (1 << port))
-                       egress = AR8327_PORT_VLAN1_OUT_MODE_TAG;
-               else
-                       egress = AR8327_PORT_VLAN1_OUT_MODE_UNTAG;
+               egress = AR8327_PORT_VLAN1_OUT_MODE_UNMOD;
                ingress = AR8216_IN_SECURE;
        } else {
                pvid = port;
@@ -1902,6 +1899,30 @@ ar8xxx_sw_get_ports(struct switch_dev *dev, struct switch_val *val)
        return 0;
 }
 
+static int
+ar8327_sw_get_ports(struct switch_dev *dev, struct switch_val *val)
+{
+       struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
+       u8 ports = priv->vlan_table[val->port_vlan];
+       int i;
+
+       val->len = 0;
+       for (i = 0; i < dev->ports; i++) {
+               struct switch_port *p;
+
+               if (!(ports & (1 << i)))
+                       continue;
+
+               p = &val->value.ports[val->len++];
+               p->id = i;
+               if ((priv->vlan_tagged & (1 << i)) || (priv->pvid[i] != val->port_vlan))
+                       p->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
+               else
+                       p->flags = 0;
+       }
+       return 0;
+}
+
 static int
 ar8xxx_sw_set_ports(struct switch_dev *dev, struct switch_val *val)
 {
@@ -1933,6 +1954,31 @@ ar8xxx_sw_set_ports(struct switch_dev *dev, struct switch_val *val)
        return 0;
 }
 
+static int
+ar8327_sw_set_ports(struct switch_dev *dev, struct switch_val *val)
+{
+       struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
+       u8 *vt = &priv->vlan_table[val->port_vlan];
+       int i, j;
+
+       *vt = 0;
+       for (i = 0; i < val->len; i++) {
+               struct switch_port *p = &val->value.ports[i];
+
+               if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) {
+                       if (val->port_vlan == priv->pvid[p->id]) {
+                               priv->vlan_tagged |= (1 << p->id);
+                       }
+               } else {
+                       priv->vlan_tagged &= ~(1 << p->id);
+                       priv->pvid[p->id] = val->port_vlan;
+               }
+
+               *vt |= 1 << p->id;
+       }
+       return 0;
+}
+
 static void
 ar8327_set_mirror_regs(struct ar8xxx_priv *priv)
 {
@@ -2475,8 +2521,8 @@ static const struct switch_dev_ops ar8327_sw_ops = {
        },
        .get_port_pvid = ar8xxx_sw_get_pvid,
        .set_port_pvid = ar8xxx_sw_set_pvid,
-       .get_vlan_ports = ar8xxx_sw_get_ports,
-       .set_vlan_ports = ar8xxx_sw_set_ports,
+       .get_vlan_ports = ar8327_sw_get_ports,
+       .set_vlan_ports = ar8327_sw_set_ports,
        .apply_config = ar8xxx_sw_hw_apply,
        .reset_switch = ar8xxx_sw_reset_switch,
        .get_port_link = ar8xxx_sw_get_port_link,