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path: root/drivers/net/dsa/qca8k.c
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Diffstat (limited to 'drivers/net/dsa/qca8k.c')
-rw-r--r--drivers/net/dsa/qca8k.c192
1 files changed, 187 insertions, 5 deletions
diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
index a5566de82853..f1e484477e35 100644
--- a/drivers/net/dsa/qca8k.c
+++ b/drivers/net/dsa/qca8k.c
@@ -408,6 +408,112 @@ qca8k_fdb_flush(struct qca8k_priv *priv)
mutex_unlock(&priv->reg_mutex);
}
+static int
+qca8k_vlan_access(struct qca8k_priv *priv, enum qca8k_vlan_cmd cmd, u16 vid)
+{
+ u32 reg;
+
+ /* Set the command and VLAN index */
+ reg = QCA8K_VTU_FUNC1_BUSY;
+ reg |= cmd;
+ reg |= vid << QCA8K_VTU_FUNC1_VID_S;
+
+ /* Write the function register triggering the table access */
+ qca8k_write(priv, QCA8K_REG_VTU_FUNC1, reg);
+
+ /* wait for completion */
+ if (qca8k_busy_wait(priv, QCA8K_REG_VTU_FUNC1, QCA8K_VTU_FUNC1_BUSY))
+ return -ETIMEDOUT;
+
+ /* Check for table full violation when adding an entry */
+ if (cmd == QCA8K_VLAN_LOAD) {
+ reg = qca8k_read(priv, QCA8K_REG_VTU_FUNC1);
+ if (reg & QCA8K_VTU_FUNC1_FULL)
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+static int
+qca8k_vlan_add(struct qca8k_priv *priv, u8 port, u16 vid, bool untagged)
+{
+ u32 reg;
+ int ret;
+
+ /*
+ We do the right thing with VLAN 0 and treat it as untagged while
+ preserving the tag on egress.
+ */
+ if (vid == 0)
+ return 0;
+
+ mutex_lock(&priv->reg_mutex);
+ ret = qca8k_vlan_access(priv, QCA8K_VLAN_READ, vid);
+ if (ret < 0)
+ goto out;
+
+ reg = qca8k_read(priv, QCA8K_REG_VTU_FUNC0);
+ reg |= QCA8K_VTU_FUNC0_VALID | QCA8K_VTU_FUNC0_IVL_EN;
+ reg &= ~(QCA8K_VTU_FUNC0_EG_MODE_MASK << QCA8K_VTU_FUNC0_EG_MODE_S(port));
+ if (untagged)
+ reg |= QCA8K_VTU_FUNC0_EG_MODE_UNTAG <<
+ QCA8K_VTU_FUNC0_EG_MODE_S(port);
+ else
+ reg |= QCA8K_VTU_FUNC0_EG_MODE_TAG <<
+ QCA8K_VTU_FUNC0_EG_MODE_S(port);
+
+ qca8k_write(priv, QCA8K_REG_VTU_FUNC0, reg);
+ ret = qca8k_vlan_access(priv, QCA8K_VLAN_LOAD, vid);
+
+out:
+ mutex_unlock(&priv->reg_mutex);
+
+ return ret;
+}
+
+static int
+qca8k_vlan_del(struct qca8k_priv *priv, u8 port, u16 vid)
+{
+ u32 reg, mask;
+ int ret, i;
+ bool del;
+
+ mutex_lock(&priv->reg_mutex);
+ ret = qca8k_vlan_access(priv, QCA8K_VLAN_READ, vid);
+ if (ret < 0)
+ goto out;
+
+ reg = qca8k_read(priv, QCA8K_REG_VTU_FUNC0);
+ reg &= ~(3 << QCA8K_VTU_FUNC0_EG_MODE_S(port));
+ reg |= QCA8K_VTU_FUNC0_EG_MODE_NOT <<
+ QCA8K_VTU_FUNC0_EG_MODE_S(port);
+
+ /* Check if we're the last member to be removed */
+ del = true;
+ for (i = 0; i < QCA8K_NUM_PORTS; i++) {
+ mask = QCA8K_VTU_FUNC0_EG_MODE_NOT;
+ mask <<= QCA8K_VTU_FUNC0_EG_MODE_S(i);
+
+ if ((reg & mask) != mask) {
+ del = false;
+ break;
+ }
+ }
+
+ if (del) {
+ ret = qca8k_vlan_access(priv, QCA8K_VLAN_PURGE, vid);
+ } else {
+ qca8k_write(priv, QCA8K_REG_VTU_FUNC0, reg);
+ ret = qca8k_vlan_access(priv, QCA8K_VLAN_LOAD, vid);
+ }
+
+out:
+ mutex_unlock(&priv->reg_mutex);
+
+ return ret;
+}
+
static void
qca8k_mib_init(struct qca8k_priv *priv)
{
@@ -663,10 +769,11 @@ qca8k_setup(struct dsa_switch *ds)
* default egress vid
*/
qca8k_rmw(priv, QCA8K_EGRESS_VLAN(i),
- 0xffff << shift, 1 << shift);
+ 0xfff << shift,
+ QCA8K_PORT_VID_DEF << shift);
qca8k_write(priv, QCA8K_REG_PORT_VLAN_CTRL0(i),
- QCA8K_PORT_VLAN_CVID(1) |
- QCA8K_PORT_VLAN_SVID(1));
+ QCA8K_PORT_VLAN_CVID(QCA8K_PORT_VID_DEF) |
+ QCA8K_PORT_VLAN_SVID(QCA8K_PORT_VID_DEF));
}
}
@@ -1133,7 +1240,7 @@ qca8k_port_fdb_insert(struct qca8k_priv *priv, const u8 *addr,
{
/* Set the vid to the port vlan id if no vid is set */
if (!vid)
- vid = 1;
+ vid = QCA8K_PORT_VID_DEF;
return qca8k_fdb_add(priv, addr, port_mask, vid,
QCA8K_ATU_STATUS_STATIC);
@@ -1157,7 +1264,7 @@ qca8k_port_fdb_del(struct dsa_switch *ds, int port,
u16 port_mask = BIT(port);
if (!vid)
- vid = 1;
+ vid = QCA8K_PORT_VID_DEF;
return qca8k_fdb_del(priv, addr, port_mask, vid);
}
@@ -1186,6 +1293,76 @@ qca8k_port_fdb_dump(struct dsa_switch *ds, int port,
return 0;
}
+static int
+qca8k_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering)
+{
+ struct qca8k_priv *priv = ds->priv;
+
+ if (vlan_filtering) {
+ qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
+ QCA8K_PORT_LOOKUP_VLAN_MODE,
+ QCA8K_PORT_LOOKUP_VLAN_MODE_SECURE);
+ } else {
+ qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
+ QCA8K_PORT_LOOKUP_VLAN_MODE,
+ QCA8K_PORT_LOOKUP_VLAN_MODE_NONE);
+ }
+
+ return 0;
+}
+
+static int
+qca8k_port_vlan_prepare(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan)
+{
+ return 0;
+}
+
+static void
+qca8k_port_vlan_add(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan)
+{
+ bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
+ bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
+ struct qca8k_priv *priv = ds->priv;
+ int ret = 0;
+ u16 vid;
+
+ for (vid = vlan->vid_begin; vid <= vlan->vid_end && !ret; ++vid)
+ ret = qca8k_vlan_add(priv, port, vid, untagged);
+
+ if (ret)
+ dev_err(priv->dev, "Failed to add VLAN to port %d (%d)", port, ret);
+
+ if (pvid) {
+ int shift = 16 * (port % 2);
+
+ qca8k_rmw(priv, QCA8K_EGRESS_VLAN(port),
+ 0xfff << shift,
+ vlan->vid_end << shift);
+ qca8k_write(priv, QCA8K_REG_PORT_VLAN_CTRL0(port),
+ QCA8K_PORT_VLAN_CVID(vlan->vid_end) |
+ QCA8K_PORT_VLAN_SVID(vlan->vid_end));
+ }
+}
+
+static int
+qca8k_port_vlan_del(struct dsa_switch *ds, int port,
+ const struct switchdev_obj_port_vlan *vlan)
+{
+ struct qca8k_priv *priv = ds->priv;
+ int ret = 0;
+ u16 vid;
+
+ for (vid = vlan->vid_begin; vid <= vlan->vid_end && !ret; ++vid)
+ ret = qca8k_vlan_del(priv, port, vid);
+
+ if (ret)
+ dev_err(priv->dev, "Failed to delete VLAN from port %d (%d)", port, ret);
+
+ return ret;
+}
+
static enum dsa_tag_protocol
qca8k_get_tag_protocol(struct dsa_switch *ds, int port,
enum dsa_tag_protocol mp)
@@ -1211,6 +1388,10 @@ static const struct dsa_switch_ops qca8k_switch_ops = {
.port_fdb_add = qca8k_port_fdb_add,
.port_fdb_del = qca8k_port_fdb_del,
.port_fdb_dump = qca8k_port_fdb_dump,
+ .port_vlan_filtering = qca8k_port_vlan_filtering,
+ .port_vlan_prepare = qca8k_port_vlan_prepare,
+ .port_vlan_add = qca8k_port_vlan_add,
+ .port_vlan_del = qca8k_port_vlan_del,
.phylink_validate = qca8k_phylink_validate,
.phylink_mac_link_state = qca8k_phylink_mac_link_state,
.phylink_mac_config = qca8k_phylink_mac_config,
@@ -1261,6 +1442,7 @@ qca8k_sw_probe(struct mdio_device *mdiodev)
priv->ds->dev = &mdiodev->dev;
priv->ds->num_ports = QCA8K_NUM_PORTS;
+ priv->ds->configure_vlan_while_not_filtering = true;
priv->ds->priv = priv;
priv->ops = qca8k_switch_ops;
priv->ds->ops = &priv->ops;
generated by cgit (git 2.34.1) at 2025-04-01 19:20:09 +0000