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)
ar8xxx_phy_poll_reset(bus);
}
-static u32
-mii_read32(struct ar8xxx_priv *priv, int phy_id, int regnum)
+u32
+ar8xxx_mii_read32(struct ar8xxx_priv *priv, int phy_id, int regnum)
{
struct mii_bus *bus = priv->mii_bus;
u16 lo, hi;
return (hi << 16) | lo;
}
-static void
-mii_write32(struct ar8xxx_priv *priv, int phy_id, int regnum, u32 val)
+void
+ar8xxx_mii_write32(struct ar8xxx_priv *priv, int phy_id, int regnum, u32 val)
{
struct mii_bus *bus = priv->mii_bus;
u16 lo, hi;
mutex_lock(&bus->mdio_lock);
bus->write(bus, 0x18, 0, page);
- usleep_range(1000, 2000); /* wait for the page switch to propagate */
- val = mii_read32(priv, 0x10 | r2, r1);
+ wait_for_page_switch();
+ val = ar8xxx_mii_read32(priv, 0x10 | r2, r1);
mutex_unlock(&bus->mdio_lock);
mutex_lock(&bus->mdio_lock);
bus->write(bus, 0x18, 0, page);
- usleep_range(1000, 2000); /* wait for the page switch to propagate */
- mii_write32(priv, 0x10 | r2, r1, val);
+ wait_for_page_switch();
+ ar8xxx_mii_write32(priv, 0x10 | r2, r1, val);
mutex_unlock(&bus->mdio_lock);
}
mutex_lock(&bus->mdio_lock);
bus->write(bus, 0x18, 0, page);
- usleep_range(1000, 2000); /* wait for the page switch to propagate */
+ wait_for_page_switch();
- ret = mii_read32(priv, 0x10 | r2, r1);
+ ret = ar8xxx_mii_read32(priv, 0x10 | r2, r1);
ret &= ~mask;
ret |= val;
- mii_write32(priv, 0x10 | r2, r1, ret);
+ ar8xxx_mii_write32(priv, 0x10 | r2, r1, ret);
mutex_unlock(&bus->mdio_lock);
{
int ret;
- ret = ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0);
+ ret = ar8216_wait_bit(priv, AR8216_REG_ATU_FUNC0, AR8216_ATU_ACTIVE, 0);
if (!ret)
- ar8xxx_write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH |
- AR8216_ATU_ACTIVE);
+ ar8xxx_write(priv, AR8216_REG_ATU_FUNC0, AR8216_ATU_OP_FLUSH |
+ AR8216_ATU_ACTIVE);
return ret;
}
}
}
+static void
+ar8216_wait_atu_ready(struct ar8xxx_priv *priv, u16 r2, u16 r1)
+{
+ int timeout = 20;
+
+ while (ar8xxx_mii_read32(priv, r2, r1) & AR8216_ATU_ACTIVE && --timeout)
+ udelay(10);
+
+ if (!timeout)
+ pr_err("ar8216: timeout waiting for atu to become ready\n");
+}
+
+static void ar8216_get_arl_entry(struct ar8xxx_priv *priv,
+ struct arl_entry *a, u32 *status, enum arl_op op)
+{
+ struct mii_bus *bus = priv->mii_bus;
+ u16 r2, page;
+ u16 r1_func0, r1_func1, r1_func2;
+ u32 t, val0, val1, val2;
+ int i;
+
+ split_addr(AR8216_REG_ATU_FUNC0, &r1_func0, &r2, &page);
+ r2 |= 0x10;
+
+ r1_func1 = (AR8216_REG_ATU_FUNC1 >> 1) & 0x1e;
+ r1_func2 = (AR8216_REG_ATU_FUNC2 >> 1) & 0x1e;
+
+ switch (op) {
+ case AR8XXX_ARL_INITIALIZE:
+ /* all ATU registers are on the same page
+ * therefore set page only once
+ */
+ bus->write(bus, 0x18, 0, page);
+ wait_for_page_switch();
+
+ ar8216_wait_atu_ready(priv, r2, r1_func0);
+
+ ar8xxx_mii_write32(priv, r2, r1_func0, AR8216_ATU_OP_GET_NEXT);
+ ar8xxx_mii_write32(priv, r2, r1_func1, 0);
+ ar8xxx_mii_write32(priv, r2, r1_func2, 0);
+ break;
+ case AR8XXX_ARL_GET_NEXT:
+ t = ar8xxx_mii_read32(priv, r2, r1_func0);
+ t |= AR8216_ATU_ACTIVE;
+ ar8xxx_mii_write32(priv, r2, r1_func0, t);
+ ar8216_wait_atu_ready(priv, r2, r1_func0);
+
+ val0 = ar8xxx_mii_read32(priv, r2, r1_func0);
+ val1 = ar8xxx_mii_read32(priv, r2, r1_func1);
+ val2 = ar8xxx_mii_read32(priv, r2, r1_func2);
+
+ *status = (val2 & AR8216_ATU_STATUS) >> AR8216_ATU_STATUS_S;
+ if (!*status)
+ break;
+
+ i = 0;
+ t = AR8216_ATU_PORT0;
+ while (!(val2 & t) && ++i < priv->dev.ports)
+ t <<= 1;
+
+ a->port = i;
+ a->mac[0] = (val0 & AR8216_ATU_ADDR5) >> AR8216_ATU_ADDR5_S;
+ a->mac[1] = (val0 & AR8216_ATU_ADDR4) >> AR8216_ATU_ADDR4_S;
+ a->mac[2] = (val1 & AR8216_ATU_ADDR3) >> AR8216_ATU_ADDR3_S;
+ a->mac[3] = (val1 & AR8216_ATU_ADDR2) >> AR8216_ATU_ADDR2_S;
+ a->mac[4] = (val1 & AR8216_ATU_ADDR1) >> AR8216_ATU_ADDR1_S;
+ a->mac[5] = (val1 & AR8216_ATU_ADDR0) >> AR8216_ATU_ADDR0_S;
+ break;
+ }
+}
+
static void
ar8236_setup_port(struct ar8xxx_priv *priv, int port, u32 members)
{
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,
.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] = {
.vtu_flush = ar8216_vtu_flush,
.vtu_load_vlan = ar8216_vtu_load_vlan,
.set_mirror_regs = ar8216_set_mirror_regs,
+ .get_arl_entry = ar8216_get_arl_entry,
.sw_hw_apply = ar8xxx_sw_hw_apply,
.num_mibs = ARRAY_SIZE(ar8216_mibs),
.vtu_flush = ar8216_vtu_flush,
.vtu_load_vlan = ar8216_vtu_load_vlan,
.set_mirror_regs = ar8216_set_mirror_regs,
+ .get_arl_entry = ar8216_get_arl_entry,
.sw_hw_apply = ar8xxx_sw_hw_apply,
.num_mibs = ARRAY_SIZE(ar8236_mibs),
.vtu_flush = ar8216_vtu_flush,
.vtu_load_vlan = ar8216_vtu_load_vlan,
.set_mirror_regs = ar8216_set_mirror_regs,
+ .get_arl_entry = ar8216_get_arl_entry,
.sw_hw_apply = ar8xxx_sw_hw_apply,
.num_mibs = ARRAY_SIZE(ar8236_mibs),
return 0;
}
+static bool
+ar8xxx_check_link_states(struct ar8xxx_priv *priv)
+{
+ bool link_new, changed = false;
+ u32 status;
+ int i;
+
+ mutex_lock(&priv->reg_mutex);
+
+ for (i = 0; i < priv->dev.ports; i++) {
+ status = priv->chip->read_port_status(priv, i);
+ link_new = !!(status & AR8216_PORT_STATUS_LINK_UP);
+ if (link_new == priv->link_up[i])
+ continue;
+
+ priv->link_up[i] = link_new;
+ changed = true;
+ dev_info(&priv->phy->dev, "Port %d is %s\n",
+ i, link_new ? "up" : "down");
+ }
+
+ if (changed)
+ priv->chip->atu_flush(priv);
+
+ mutex_unlock(&priv->reg_mutex);
+
+ return changed;
+}
+
static int
ar8xxx_phy_read_status(struct phy_device *phydev)
{
struct ar8xxx_priv *priv = phydev->priv;
struct switch_port_link link;
+ /* check for link changes and flush ATU
+ * if a change was detected
+ */
+ if (phydev->state == PHY_CHANGELINK)
+ ar8xxx_check_link_states(priv);
+
if (phydev->addr != 0)
return genphy_read_status(phydev);
projects / openwrt / svn-archive / archive.git / blobdiff