ar8216: add swconfig attribute to display ARL table on AR8327/AR8337

[openwrt/staging/yousong.git] / target / linux / generic / files / drivers / net / phy / ar8216.c

diff --git a/target/linux/generic/files/drivers/net/phy/ar8216.c b/target/linux/generic/files/drivers/net/phy/ar8216.c
index 8a40a322b59d604fa6daee5d55b00476e68862b3..8266003c172d953dc2101836ea83ff1a97a957db 100644 (file)
--- a/target/linux/generic/files/drivers/net/phy/ar8216.c
+++ b/target/linux/generic/files/drivers/net/phy/ar8216.c
@@ -134,19 +134,6 @@ const struct ar8xxx_mib_desc ar8236_mibs[39] = {
 static DEFINE_MUTEX(ar8xxx_dev_list_lock);
 static LIST_HEAD(ar8xxx_dev_list);
 
-static inline void
-split_addr(u32 regaddr, u16 *r1, u16 *r2, u16 *page)
-{
-       regaddr >>= 1;
-       *r1 = regaddr & 0x1e;
-
-       regaddr >>= 5;
-       *r2 = regaddr & 0x7;
-
-       regaddr >>= 3;
-       *page = regaddr & 0x1ff;
-}
-
 /* inspired by phy_poll_reset in drivers/net/phy/phy_device.c */
 static int
 ar8xxx_phy_poll_reset(struct mii_bus *bus)
@@ -217,7 +204,7 @@ ar8xxx_phy_init(struct ar8xxx_priv *priv)
        ar8xxx_phy_poll_reset(bus);
 }
 
-static u32
+u32
 mii_read32(struct ar8xxx_priv *priv, int phy_id, int regnum)
 {
        struct mii_bus *bus = priv->mii_bus;
@@ -229,7 +216,7 @@ mii_read32(struct ar8xxx_priv *priv, int phy_id, int regnum)
        return (hi << 16) | lo;
 }
 
-static void
+void
 mii_write32(struct ar8xxx_priv *priv, int phy_id, int regnum, u32 val)
 {
        struct mii_bus *bus = priv->mii_bus;
@@ -1291,6 +1278,78 @@ unlock:
        return ret;
 }
 
+int
+ar8xxx_sw_get_arl_table(struct switch_dev *dev,
+                       const struct switch_attr *attr,
+                       struct switch_val *val)
+{
+       struct ar8xxx_priv *priv = swdev_to_ar8xxx(dev);
+       struct mii_bus *bus = priv->mii_bus;
+       const struct ar8xxx_chip *chip = priv->chip;
+       char *buf = priv->arl_buf;
+       int i, j, k, len = 0;
+       struct arl_entry *a, *a1;
+       u32 status;
+
+       if (!chip->get_arl_entry)
+               return -EOPNOTSUPP;
+
+       mutex_lock(&priv->reg_mutex);
+       mutex_lock(&bus->mdio_lock);
+
+       chip->get_arl_entry(priv, NULL, NULL, AR8XXX_ARL_INITIALIZE);
+
+       for(i = 0; i < AR8XXX_NUM_ARL_RECORDS; ++i) {
+               a = &priv->arl_table[i];
+               duplicate:
+               chip->get_arl_entry(priv, a, &status, AR8XXX_ARL_GET_NEXT);
+
+               if (!status)
+                       break;
+
+               /* avoid duplicates
+                * ARL table can include multiple valid entries
+                * per MAC, just with differing status codes
+                */
+               for (j = 0; j < i; ++j) {
+                       a1 = &priv->arl_table[j];
+                       if (a->port == a1->port && !memcmp(a->mac, a1->mac, sizeof(a->mac)))
+                               goto duplicate;
+               }
+       }
+
+       mutex_unlock(&bus->mdio_lock);
+
+       len += snprintf(buf + len, sizeof(priv->arl_buf) - len,
+                        "address resolution table\n");
+
+       if (i == AR8XXX_NUM_ARL_RECORDS)
+               len += snprintf(buf + len, sizeof(priv->arl_buf) - len,
+                               "Too many entries found, displaying the first %d only!\n",
+                               AR8XXX_NUM_ARL_RECORDS);
+
+       for (j = 0; j < priv->dev.ports; ++j) {
+               for (k = 0; k < i; ++k) {
+                       a = &priv->arl_table[k];
+                       if (a->port != j)
+                               continue;
+                       len += snprintf(buf + len, sizeof(priv->arl_buf) - len,
+                                       "Port %d: MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
+                                       j,
+                                       a->mac[5], a->mac[4], a->mac[3],
+                                       a->mac[2], a->mac[1], a->mac[0]);
+               }
+       }
+
+       val->value.s = buf;
+       val->len = len;
+
+       mutex_unlock(&priv->reg_mutex);
+
+       return 0;
+}
+
+
 static const struct switch_attr ar8xxx_sw_attr_globals[] = {
        {
                .type = SWITCH_TYPE_INT,
@@ -1338,6 +1397,13 @@ static const struct switch_attr ar8xxx_sw_attr_globals[] = {
                .get = ar8xxx_sw_get_mirror_source_port,
                .max = AR8216_NUM_PORTS - 1
        },
+       {
+               .type = SWITCH_TYPE_STRING,
+               .name = "arl_table",
+               .description = "Get ARL table",
+               .set = NULL,
+               .get = ar8xxx_sw_get_arl_table,
+       },
 };
 
 const struct switch_attr ar8xxx_sw_attr_port[2] = {