revert: kernel: rtl8306: fix max pvid & remove port isolation

apparently this one was nt a good idea to merge

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 40330

target/linux/generic/files/drivers/net/phy/rtl8306.c

@@ -361,31 +361,6 @@ rtl_set(struct switch_dev *dev, enum rtl_regidx s, unsigned int val)
 	return rtl_rmw(dev, r->page, r->phy, r->reg, mask, val);
 }
 
-static void
-rtl_fix_pvids(struct switch_dev *dev)
-{
-	unsigned int port, vlan, mask;
-	
-	for (port = 0; port < RTL8306_NUM_PORTS; port++)
-	{
-		/* skip tagged ports */
-		if (rtl_get(dev, RTL_PORT_REG(port, TAG_INSERT)) != 1)
-			continue;
-		
-		for (vlan = 0; vlan < RTL8306_NUM_VLANS; vlan++)
-		{
-			mask = rtl_get(dev, RTL_VLAN_REG(vlan, PORTMASK));
-			/* skip non-members */
-			if (!(mask & (1 << port)))
-				continue;
-			
-			rtl_set(dev, RTL_PORT_REG(port, PVID), vlan);
-			/* next port */
-			break;
-		}
-	}
-}
-
 static void
 rtl_phy_save(struct switch_dev *dev, int port, struct rtl_phyregs *regs)
 {
@@ -469,6 +444,7 @@ static void
 rtl_hw_init(struct switch_dev *dev)
 {
 	struct rtl_priv *priv = to_rtl(dev);
+	int cpu_mask = 1 << dev->cpu_port;
 	int i;
 
 	rtl_set(dev, RTL_REG_VLAN_ENABLE, 0);
@@ -494,19 +470,21 @@ rtl_hw_init(struct switch_dev *dev)
 		rtl_set(dev, RTL_VLAN_REG(i, PORTMASK), 0);
 	}
 
-#ifdef DEBUG
 	/* default to port isolation */
 	for (i = 0; i < RTL8306_NUM_PORTS; i++) {
-		if (i != dev->cpu_port)
+		unsigned long mask;
-			rtl_set(dev, RTL_VLAN_REG(i, PORTMASK), (1 << dev->cpu_port) | (1 << i));
+
+		if ((1 << i) == cpu_mask)
+			mask = ((1 << RTL8306_NUM_PORTS) - 1) & ~cpu_mask; /* all bits set */
+		else
+			mask = cpu_mask | (1 << i);
+
+		rtl_set(dev, RTL_VLAN_REG(i, PORTMASK), mask);
 		rtl_set(dev, RTL_PORT_REG(i, PVID), i);
 		rtl_set(dev, RTL_PORT_REG(i, NULL_VID_REPLACE), 1);
 		rtl_set(dev, RTL_PORT_REG(i, VID_INSERT), 1);
 		rtl_set(dev, RTL_PORT_REG(i, TAG_INSERT), 3);
 	}
-#endif
-	rtl_fix_pvids(dev);
-
 	rtl_hw_apply(dev);
 }
 
@@ -591,7 +569,6 @@ rtl_attr_get_int(struct switch_dev *dev, const struct switch_attr *attr, struct
 	return 0;
 }
 
-#ifdef DEBUG
 static int
 rtl_attr_set_port_int(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
 {
@@ -608,39 +585,6 @@ rtl_attr_get_port_int(struct switch_dev *dev, const struct switch_attr *attr, st
 		return -EINVAL;
 	return rtl_attr_get_int(dev, attr, val);
 }
-#endif
-
-static int
-rtl_attr_set_port_pvid(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
-{
-	unsigned int vlan;
-
-	if (val->port_vlan >= RTL8306_NUM_PORTS)
-		return -EINVAL;
-
-	for (vlan = 0; vlan < RTL8306_NUM_VLANS; vlan++) {
-		if (rtl_get(dev, RTL_VLAN_REG(vlan, VID)) == val->value.i) {
-			rtl_set(dev, RTL_PORT_REG(val->port_vlan, PVID), vlan);
-			break;
-		}
-	}
-
-	return 0;
-}
-
-static int
-rtl_attr_get_port_pvid(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
-{
-	unsigned int vlan;
-
-	if (val->port_vlan >= RTL8306_NUM_PORTS)
-		return -EINVAL;
-
-	vlan = rtl_get(dev, RTL_PORT_REG(val->port_vlan, PVID));
-	val->value.i = rtl_get(dev, RTL_VLAN_REG(vlan, VID));
-
-	return 0;
-}
 
 static int 
 rtl_get_port_link(struct switch_dev *dev, int port, struct switch_port_link *link)
@@ -695,7 +639,7 @@ rtl_get_ports(struct switch_dev *dev, struct switch_val *val)
 
 		port = &val->value.ports[val->len];
 		port->id = i;
-		if (rtl_get(dev, RTL_PORT_REG(i, TAG_INSERT)) == 2)
+		if (rtl_get(dev, RTL_PORT_REG(i, TAG_INSERT)) == 2 || i == dev->cpu_port)
 			port->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
 		val->len++;
 	}
@@ -722,15 +666,13 @@ rtl_set_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct swit
 		if (i > 3)
 			rtl_phy_save(dev, val->port_vlan, &port);
 		rtl_set(dev, RTL_PORT_REG(i, NULL_VID_REPLACE), 1);
-		rtl_set(dev, RTL_PORT_REG(i, VID_INSERT), 1);
+		rtl_set(dev, RTL_PORT_REG(i, VID_INSERT), (en ? (i == dev->cpu_port ? 0 : 1) : 1));
-		rtl_set(dev, RTL_PORT_REG(i, TAG_INSERT), (en ? 1 : 3));
+		rtl_set(dev, RTL_PORT_REG(i, TAG_INSERT), (en ? (i == dev->cpu_port ? 2 : 1) : 3));
 		if (i > 3)
 			rtl_phy_restore(dev, val->port_vlan, &port);
 	}
 	rtl_set(dev, RTL_REG_VLAN_ENABLE, en);
 
-	rtl_fix_pvids(dev);
-
 	return 0;
 }
 
@@ -745,6 +687,7 @@ static int
 rtl_set_ports(struct switch_dev *dev, struct switch_val *val)
 {
 	unsigned int mask = 0;
+	unsigned int oldmask;
 	int i;
 
 	for(i = 0; i < val->len; i++)
@@ -754,17 +697,37 @@ rtl_set_ports(struct switch_dev *dev, struct switch_val *val)
 
 		mask |= (1 << port->id);
 
-		if (port->flags & (1 << SWITCH_PORT_FLAG_TAGGED))
+		if (port->id == dev->cpu_port)
+			continue;
+
+		if ((i == dev->cpu_port) ||
+			(port->flags & (1 << SWITCH_PORT_FLAG_TAGGED)))
 			tagged = true;
 
+		/* fix up PVIDs for added ports */
+		if (!tagged)
+			rtl_set(dev, RTL_PORT_REG(port->id, PVID), val->port_vlan);
+
 		rtl_set(dev, RTL_PORT_REG(port->id, NON_PVID_DISCARD), (tagged ? 0 : 1));
 		rtl_set(dev, RTL_PORT_REG(port->id, VID_INSERT), (tagged ? 0 : 1));
 		rtl_set(dev, RTL_PORT_REG(port->id, TAG_INSERT), (tagged ? 2 : 1));
 	}
 
+	oldmask = rtl_get(dev, RTL_VLAN_REG(val->port_vlan, PORTMASK));
 	rtl_set(dev, RTL_VLAN_REG(val->port_vlan, PORTMASK), mask);
 
-	rtl_fix_pvids(dev);
+	/* fix up PVIDs for removed ports, default to last vlan */
+	oldmask &= ~mask;
+	for (i = 0; i < RTL8306_NUM_PORTS; i++) {
+		if (!(oldmask & (1 << i)))
+			continue;
+
+		if (i == dev->cpu_port)
+			continue;
+
+		if (rtl_get(dev, RTL_PORT_REG(i, PVID)) == val->port_vlan)
+			rtl_set(dev, RTL_PORT_REG(i, PVID), dev->vlans - 1);
+	}
 
 	return 0;
 }
@@ -835,12 +798,10 @@ static struct switch_attr rtl_globals[] = {
 };
 static struct switch_attr rtl_port[] = {
 	{
-		.type = SWITCH_TYPE_INT,
+		RTL_PORT_REGATTR(PVID),
-		.set = rtl_attr_set_port_pvid,
-		.get = rtl_attr_get_port_pvid,
 		.name = "pvid",
 		.description = "Port VLAN ID",
-		.max = 4095,
+		.max = RTL8306_NUM_VLANS - 1,
 	},
 #ifdef DEBUG
 	{