[OpenWrt-Devel] [RFC] Fix VLAN on Atheros AR8327N
Álvaro Fernández Rojas
noltari at gmail.com
Sat Jul 19 15:49:38 EDT 2014
Commit 40842 reverted the fix for tagged+untagged VLANs on AR8327:
https://dev.openwrt.org/changeset/40777
https://dev.openwrt.org/changeset/40842
According to jow, some people experienced some "issues" on older devices. Can anyone tell me what were those issues?
Anyway, that patch modified some parts of the ar8216/ar8236, so I suppose any device with those switches were affected.
However, I've modified the patch keeping the ar8216/ar8236 as much untouched as possible.
Could anyone test it on those devices?
BTW, this works for me on a TP-Link WDR4300 (ar8327).
Signed-off-by: Saverio Proto <zioproto at gmail.com>
Signed-off-by: Álvaro Fernández <noltari at gmail.com>
---
diff --git a/target/linux/generic/files/drivers/net/phy/ar8216.c b/target/linux/generic/files/drivers/net/phy/ar8216.c
index 3846159..9eae624 100644
--- a/target/linux/generic/files/drivers/net/phy/ar8216.c
+++ b/target/linux/generic/files/drivers/net/phy/ar8216.c
@@ -78,7 +78,7 @@ struct ar8xxx_chip {
u32 (*read_port_status)(struct ar8xxx_priv *priv, int port);
int (*atu_flush)(struct ar8xxx_priv *priv);
void (*vtu_flush)(struct ar8xxx_priv *priv);
- void (*vtu_load_vlan)(struct ar8xxx_priv *priv, u32 vid, u32 port_mask);
+ void (*vtu_load_vlan)(struct ar8xxx_priv *priv, u32 vlan);
const struct ar8xxx_mib_desc *mib_decs;
unsigned num_mibs;
@@ -112,7 +112,12 @@ struct ar8327_led {
enum ar8327_led_pattern pattern;
};
+struct ar8216_data {
+ u8 vlan_tagged;
+};
+
struct ar8327_data {
+ u8 vlan_tagged[AR8X16_MAX_VLANS];
u32 port0_status;
u32 port6_status;
@@ -138,6 +143,7 @@ struct ar8xxx_priv {
u8 chip_rev;
const struct ar8xxx_chip *chip;
union {
+ struct ar8216_data ar8216;
struct ar8327_data ar8327;
} chip_data;
bool initialized;
@@ -159,7 +165,6 @@ struct ar8xxx_priv {
bool vlan;
u16 vlan_id[AR8X16_MAX_VLANS];
u8 vlan_table[AR8X16_MAX_VLANS];
- u8 vlan_tagged;
u16 pvid[AR8X16_MAX_PORTS];
/* mirroring */
@@ -641,7 +646,7 @@ ar8216_mangle_rx(struct net_device *dev, struct sk_buff *skb)
port = buf[0] & 0xf;
/* no need to fix up packets coming from a tagged source */
- if (priv->vlan_tagged & (1 << port))
+ if (priv->chip_data.ar8216.vlan_tagged & BIT(port))
return;
/* lookup port vid from local table, the switch passes an invalid vlan id */
@@ -695,10 +700,13 @@ ar8216_vtu_flush(struct ar8xxx_priv *priv)
}
static void
-ar8216_vtu_load_vlan(struct ar8xxx_priv *priv, u32 vid, u32 port_mask)
+ar8216_vtu_load_vlan(struct ar8xxx_priv *priv, u32 vlan)
{
u32 op;
+ u32 vid = priv->vlan_id[vlan];
+ u32 port_mask = priv->vlan_table[vlan];
+
op = AR8216_VTU_OP_LOAD | (vid << AR8216_VTU_VID_S);
ar8216_vtu_op(priv, op, port_mask);
}
@@ -1705,12 +1713,16 @@ ar8327_vtu_flush(struct ar8xxx_priv *priv)
}
static void
-ar8327_vtu_load_vlan(struct ar8xxx_priv *priv, u32 vid, u32 port_mask)
+ar8327_vtu_load_vlan(struct ar8xxx_priv *priv, u32 vlan)
{
u32 op;
u32 val;
int i;
+ u32 vid = priv->vlan_id[vlan];
+ u32 port_mask = priv->vlan_table[vlan];
+ u32 tagged = priv->chip_data.ar8327.vlan_tagged[vlan];
+
op = AR8327_VTU_FUNC1_OP_LOAD | (vid << AR8327_VTU_FUNC1_VID_S);
val = AR8327_VTU_FUNC0_VALID | AR8327_VTU_FUNC0_IVL;
for (i = 0; i < AR8327_NUM_PORTS; i++) {
@@ -1720,7 +1732,7 @@ 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 (tagged & BIT(i))
mode = AR8327_VTU_FUNC0_EG_MODE_TAG;
else
mode = AR8327_VTU_FUNC0_EG_MODE_UNTAG;
@@ -1734,26 +1746,22 @@ static void
ar8327_setup_port(struct ar8xxx_priv *priv, int port, u32 egress, u32 ingress,
u32 members, u32 pvid)
{
- u32 t;
- u32 mode;
+ u32 mode, t;
+
+ if (priv->vlan) {
+ pvid = priv->vlan_id[priv->pvid[port]];
+ mode = AR8327_PORT_VLAN1_OUT_MODE_UNMOD;
+ ingress = AR8216_IN_SECURE;
+ } else {
+ pvid = port;
+ mode = AR8327_PORT_VLAN1_OUT_MODE_UNTOUCH;
+ ingress = AR8216_IN_PORT_ONLY;
+ }
t = pvid << AR8327_PORT_VLAN0_DEF_SVID_S;
t |= pvid << AR8327_PORT_VLAN0_DEF_CVID_S;
priv->write(priv, AR8327_REG_PORT_VLAN0(port), t);
- mode = AR8327_PORT_VLAN1_OUT_MODE_UNMOD;
- switch (egress) {
- case AR8216_OUT_KEEP:
- mode = AR8327_PORT_VLAN1_OUT_MODE_UNTOUCH;
- break;
- case AR8216_OUT_STRIP_VLAN:
- mode = AR8327_PORT_VLAN1_OUT_MODE_UNTAG;
- break;
- case AR8216_OUT_ADD_VLAN:
- mode = AR8327_PORT_VLAN1_OUT_MODE_TAG;
- break;
- }
-
t = AR8327_PORT_VLAN1_PORT_VLAN_PROP;
t |= mode << AR8327_PORT_VLAN1_OUT_MODE_S;
priv->write(priv, AR8327_REG_PORT_VLAN1(port), t);
@@ -1851,23 +1859,21 @@ ar8xxx_sw_get_port_link(struct switch_dev *dev, int port,
}
static int
-ar8xxx_sw_get_ports(struct switch_dev *dev, struct switch_val *val)
+ar8xxx_sw_get_ports(struct switch_val *val, int ports, u8 port_mask, u8 tagged)
{
- 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++) {
+ for (i = 0; i < ports; i++) {
struct switch_port *p;
- if (!(ports & (1 << i)))
+ if (!(port_mask & BIT(i)))
continue;
p = &val->value.ports[val->len++];
p->id = i;
- if (priv->vlan_tagged & (1 << i))
- p->flags = (1 << SWITCH_PORT_FLAG_TAGGED);
+ if (tagged & BIT(i))
+ p->flags = BIT(SWITCH_PORT_FLAG_TAGGED);
else
p->flags = 0;
}
@@ -1875,20 +1881,55 @@ ar8xxx_sw_get_ports(struct switch_dev *dev, struct switch_val *val)
}
static int
-ar8xxx_sw_set_ports(struct switch_dev *dev, struct switch_val *val)
+ar8216_sw_get_ports(struct switch_dev *dev, struct switch_val *val)
+{
+ int ports = dev->ports;
+ struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
+ u8 port_mask = priv->vlan_table[val->port_vlan];
+ u8 tagged = priv->chip_data.ar8216.vlan_tagged;
+
+ return ar8xxx_sw_get_ports(val, ports, port_mask, tagged);
+}
+
+static int
+ar8327_sw_get_ports(struct switch_dev *dev, struct switch_val *val)
+{
+ int ports = dev->ports;
+ struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
+ u8 port_mask = priv->vlan_table[val->port_vlan];
+ u8 tagged = priv->chip_data.ar8327.vlan_tagged[val->port_vlan];
+
+ return ar8xxx_sw_get_ports(val, ports, port_mask, tagged);
+}
+
+static int
+ar8216_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];
+ u8 *tagged = &priv->chip_data.ar8216.vlan_tagged;
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)) {
- priv->vlan_tagged |= (1 << p->id);
+ if (p->flags & BIT(SWITCH_PORT_FLAG_TAGGED)) {
+
+ /* if port was untagged before then
+ * remove him from other vlans */
+ if(*tagged & BIT(p->id)){
+ for (j = 0; j < AR8X16_MAX_VLANS; j++) {
+ if (j == val->port_vlan)
+ continue;
+
+ priv->vlan_table[j] &= ~(BIT(p->id));
+ }
+ }
+
+ *tagged |= BIT(p->id);
} else {
- priv->vlan_tagged &= ~(1 << p->id);
+ *tagged &= ~(BIT(p->id));
priv->pvid[p->id] = val->port_vlan;
/* make sure that an untagged port does not
@@ -1896,11 +1937,38 @@ ar8xxx_sw_set_ports(struct switch_dev *dev, struct switch_val *val)
for (j = 0; j < AR8X16_MAX_VLANS; j++) {
if (j == val->port_vlan)
continue;
- priv->vlan_table[j] &= ~(1 << p->id);
+
+ priv->vlan_table[j] &= ~(BIT(p->id));
}
}
- *vt |= 1 << p->id;
+ *vt |= BIT(p->id);
+ }
+ 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];
+ u8 *vlan_tagged = priv->chip_data.ar8327.vlan_tagged;
+ u8 *tagged = &vlan_tagged[val->port_vlan];
+
+ int i;
+
+ *vt = 0;
+ *tagged = 0;
+ for (i = 0; i < val->len; i++) {
+ struct switch_port *p = &val->value.ports[i];
+
+ if (p->flags & BIT(SWITCH_PORT_FLAG_TAGGED)) {
+ *tagged |= BIT(p->id);
+ } else {
+ priv->pvid[p->id] = val->port_vlan;
+ }
+
+ *vt |= BIT(p->id);
}
return 0;
}
@@ -2019,13 +2087,12 @@ ar8xxx_sw_hw_apply(struct switch_dev *dev)
continue;
for (i = 0; i < dev->ports; i++) {
- u8 mask = (1 << i);
+ u8 mask = BIT(i);
if (vp & mask)
portmask[i] |= vp & ~mask;
}
- priv->chip->vtu_load_vlan(priv, priv->vlan_id[j],
- priv->vlan_table[j]);
+ priv->chip->vtu_load_vlan(priv, j);
}
} else {
/* vlan disabled:
@@ -2034,8 +2101,8 @@ ar8xxx_sw_hw_apply(struct switch_dev *dev)
if (i == AR8216_PORT_CPU)
continue;
- portmask[i] = 1 << AR8216_PORT_CPU;
- portmask[AR8216_PORT_CPU] |= (1 << i);
+ portmask[i] = BIT(AR8216_PORT_CPU);
+ portmask[AR8216_PORT_CPU] |= BIT(i);
}
}
@@ -2046,7 +2113,7 @@ ar8xxx_sw_hw_apply(struct switch_dev *dev)
if (priv->vlan) {
pvid = priv->vlan_id[priv->pvid[i]];
- if (priv->vlan_tagged & (1 << i))
+ if (priv->chip_data.ar8216.vlan_tagged & BIT(i))
egress = AR8216_OUT_ADD_VLAN;
else
egress = AR8216_OUT_STRIP_VLAN;
@@ -2442,8 +2509,8 @@ static const struct switch_dev_ops ar8xxx_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 = ar8216_sw_get_ports,
+ .set_vlan_ports = ar8216_sw_set_ports,
.apply_config = ar8xxx_sw_hw_apply,
.reset_switch = ar8xxx_sw_reset_switch,
.get_port_link = ar8xxx_sw_get_port_link,
@@ -2464,8 +2531,8 @@ 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,
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