[net-next PATCH v2 05/15] net: dsa: qca8k: move fdb/vlan/mib init functions to common code

From: Christian Marangi
Date: Mon Jul 18 2022 - 21:16:07 EST

The same fdb,vlan and mib function are used by drivers based on qca8k
family switch.
Move them to common code to make them accessible also by other drivers.

Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx>
---
drivers/net/dsa/qca/qca8k-8xxx.c | 364 -----------------------------
drivers/net/dsa/qca/qca8k-common.c | 361 ++++++++++++++++++++++++++++
drivers/net/dsa/qca/qca8k.h | 15 ++
3 files changed, 376 insertions(+), 364 deletions(-)

diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index 3178ae023d2a..e17567a4b99f 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -441,370 +441,6 @@ static struct regmap_config qca8k_regmap_config = {
.cache_type = REGCACHE_NONE, /* Explicitly disable CACHE */
};

-static int
-qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask)
-{
- u32 val;
-
- return regmap_read_poll_timeout(priv->regmap, reg, val, !(val & mask), 0,
- QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC);
-}
-
-static int
-qca8k_fdb_read(struct qca8k_priv *priv, struct qca8k_fdb *fdb)
-{
- u32 reg[3];
- int ret;
-
- /* load the ARL table into an array */
- ret = qca8k_bulk_read(priv, QCA8K_REG_ATU_DATA0, reg, sizeof(reg));
- if (ret)
- return ret;
-
- /* vid - 83:72 */
- fdb->vid = FIELD_GET(QCA8K_ATU_VID_MASK, reg[2]);
- /* aging - 67:64 */
- fdb->aging = FIELD_GET(QCA8K_ATU_STATUS_MASK, reg[2]);
- /* portmask - 54:48 */
- fdb->port_mask = FIELD_GET(QCA8K_ATU_PORT_MASK, reg[1]);
- /* mac - 47:0 */
- fdb->mac[0] = FIELD_GET(QCA8K_ATU_ADDR0_MASK, reg[1]);
- fdb->mac[1] = FIELD_GET(QCA8K_ATU_ADDR1_MASK, reg[1]);
- fdb->mac[2] = FIELD_GET(QCA8K_ATU_ADDR2_MASK, reg[0]);
- fdb->mac[3] = FIELD_GET(QCA8K_ATU_ADDR3_MASK, reg[0]);
- fdb->mac[4] = FIELD_GET(QCA8K_ATU_ADDR4_MASK, reg[0]);
- fdb->mac[5] = FIELD_GET(QCA8K_ATU_ADDR5_MASK, reg[0]);
-
- return 0;
-}
-
-static void
-qca8k_fdb_write(struct qca8k_priv *priv, u16 vid, u8 port_mask, const u8 *mac,
- u8 aging)
-{
- u32 reg[3] = { 0 };
-
- /* vid - 83:72 */
- reg[2] = FIELD_PREP(QCA8K_ATU_VID_MASK, vid);
- /* aging - 67:64 */
- reg[2] |= FIELD_PREP(QCA8K_ATU_STATUS_MASK, aging);
- /* portmask - 54:48 */
- reg[1] = FIELD_PREP(QCA8K_ATU_PORT_MASK, port_mask);
- /* mac - 47:0 */
- reg[1] |= FIELD_PREP(QCA8K_ATU_ADDR0_MASK, mac[0]);
- reg[1] |= FIELD_PREP(QCA8K_ATU_ADDR1_MASK, mac[1]);
- reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR2_MASK, mac[2]);
- reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR3_MASK, mac[3]);
- reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR4_MASK, mac[4]);
- reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR5_MASK, mac[5]);
-
- /* load the array into the ARL table */
- qca8k_bulk_write(priv, QCA8K_REG_ATU_DATA0, reg, sizeof(reg));
-}
-
-static int
-qca8k_fdb_access(struct qca8k_priv *priv, enum qca8k_fdb_cmd cmd, int port)
-{
- u32 reg;
- int ret;
-
- /* Set the command and FDB index */
- reg = QCA8K_ATU_FUNC_BUSY;
- reg |= cmd;
- if (port >= 0) {
- reg |= QCA8K_ATU_FUNC_PORT_EN;
- reg |= FIELD_PREP(QCA8K_ATU_FUNC_PORT_MASK, port);
- }
-
- /* Write the function register triggering the table access */
- ret = qca8k_write(priv, QCA8K_REG_ATU_FUNC, reg);
- if (ret)
- return ret;
-
- /* wait for completion */
- ret = qca8k_busy_wait(priv, QCA8K_REG_ATU_FUNC, QCA8K_ATU_FUNC_BUSY);
- if (ret)
- return ret;
-
- /* Check for table full violation when adding an entry */
- if (cmd == QCA8K_FDB_LOAD) {
- ret = qca8k_read(priv, QCA8K_REG_ATU_FUNC, &reg);
- if (ret < 0)
- return ret;
- if (reg & QCA8K_ATU_FUNC_FULL)
- return -1;
- }
-
- return 0;
-}
-
-static int
-qca8k_fdb_next(struct qca8k_priv *priv, struct qca8k_fdb *fdb, int port)
-{
- int ret;
-
- qca8k_fdb_write(priv, fdb->vid, fdb->port_mask, fdb->mac, fdb->aging);
- ret = qca8k_fdb_access(priv, QCA8K_FDB_NEXT, port);
- if (ret < 0)
- return ret;
-
- return qca8k_fdb_read(priv, fdb);
-}
-
-static int
-qca8k_fdb_add(struct qca8k_priv *priv, const u8 *mac, u16 port_mask,
- u16 vid, u8 aging)
-{
- int ret;
-
- mutex_lock(&priv->reg_mutex);
- qca8k_fdb_write(priv, vid, port_mask, mac, aging);
- ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
- mutex_unlock(&priv->reg_mutex);
-
- return ret;
-}
-
-static int
-qca8k_fdb_del(struct qca8k_priv *priv, const u8 *mac, u16 port_mask, u16 vid)
-{
- int ret;
-
- mutex_lock(&priv->reg_mutex);
- qca8k_fdb_write(priv, vid, port_mask, mac, 0);
- ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
- mutex_unlock(&priv->reg_mutex);
-
- return ret;
-}
-
-static void
-qca8k_fdb_flush(struct qca8k_priv *priv)
-{
- mutex_lock(&priv->reg_mutex);
- qca8k_fdb_access(priv, QCA8K_FDB_FLUSH, -1);
- mutex_unlock(&priv->reg_mutex);
-}
-
-static int
-qca8k_fdb_search_and_insert(struct qca8k_priv *priv, u8 port_mask,
- const u8 *mac, u16 vid)
-{
- struct qca8k_fdb fdb = { 0 };
- int ret;
-
- mutex_lock(&priv->reg_mutex);
-
- qca8k_fdb_write(priv, vid, 0, mac, 0);
- ret = qca8k_fdb_access(priv, QCA8K_FDB_SEARCH, -1);
- if (ret < 0)
- goto exit;
-
- ret = qca8k_fdb_read(priv, &fdb);
- if (ret < 0)
- goto exit;
-
- /* Rule exist. Delete first */
- if (!fdb.aging) {
- ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
- if (ret)
- goto exit;
- }
-
- /* Add port to fdb portmask */
- fdb.port_mask |= port_mask;
-
- qca8k_fdb_write(priv, vid, fdb.port_mask, mac, fdb.aging);
- ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
-
-exit:
- mutex_unlock(&priv->reg_mutex);
- return ret;
-}
-
-static int
-qca8k_fdb_search_and_del(struct qca8k_priv *priv, u8 port_mask,
- const u8 *mac, u16 vid)
-{
- struct qca8k_fdb fdb = { 0 };
- int ret;
-
- mutex_lock(&priv->reg_mutex);
-
- qca8k_fdb_write(priv, vid, 0, mac, 0);
- ret = qca8k_fdb_access(priv, QCA8K_FDB_SEARCH, -1);
- if (ret < 0)
- goto exit;
-
- /* Rule doesn't exist. Why delete? */
- if (!fdb.aging) {
- ret = -EINVAL;
- goto exit;
- }
-
- ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
- if (ret)
- goto exit;
-
- /* Only port in the rule is this port. Don't re insert */
- if (fdb.port_mask == port_mask)
- goto exit;
-
- /* Remove port from port mask */
- fdb.port_mask &= ~port_mask;
-
- qca8k_fdb_write(priv, vid, fdb.port_mask, mac, fdb.aging);
- ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
-
-exit:
- mutex_unlock(&priv->reg_mutex);
- return ret;
-}
-
-static int
-qca8k_vlan_access(struct qca8k_priv *priv, enum qca8k_vlan_cmd cmd, u16 vid)
-{
- u32 reg;
- int ret;
-
- /* Set the command and VLAN index */
- reg = QCA8K_VTU_FUNC1_BUSY;
- reg |= cmd;
- reg |= FIELD_PREP(QCA8K_VTU_FUNC1_VID_MASK, vid);
-
- /* Write the function register triggering the table access */
- ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC1, reg);
- if (ret)
- return ret;
-
- /* wait for completion */
- ret = qca8k_busy_wait(priv, QCA8K_REG_VTU_FUNC1, QCA8K_VTU_FUNC1_BUSY);
- if (ret)
- return ret;
-
- /* Check for table full violation when adding an entry */
- if (cmd == QCA8K_VLAN_LOAD) {
- ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC1, &reg);
- if (ret < 0)
- return ret;
- 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;
-
- ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC0, &reg);
- if (ret < 0)
- goto out;
- reg |= QCA8K_VTU_FUNC0_VALID | QCA8K_VTU_FUNC0_IVL_EN;
- reg &= ~QCA8K_VTU_FUNC0_EG_MODE_PORT_MASK(port);
- if (untagged)
- reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_UNTAG(port);
- else
- reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_TAG(port);
-
- ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC0, reg);
- if (ret)
- goto out;
- 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;
-
- ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC0, &reg);
- if (ret < 0)
- goto out;
- reg &= ~QCA8K_VTU_FUNC0_EG_MODE_PORT_MASK(port);
- reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_NOT(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_PORT_NOT(i);
-
- if ((reg & mask) != mask) {
- del = false;
- break;
- }
- }
-
- if (del) {
- ret = qca8k_vlan_access(priv, QCA8K_VLAN_PURGE, vid);
- } else {
- ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC0, reg);
- if (ret)
- goto out;
- ret = qca8k_vlan_access(priv, QCA8K_VLAN_LOAD, vid);
- }
-
-out:
- mutex_unlock(&priv->reg_mutex);
-
- return ret;
-}
-
-static int
-qca8k_mib_init(struct qca8k_priv *priv)
-{
- int ret;
-
- mutex_lock(&priv->reg_mutex);
- ret = regmap_update_bits(priv->regmap, QCA8K_REG_MIB,
- QCA8K_MIB_FUNC | QCA8K_MIB_BUSY,
- FIELD_PREP(QCA8K_MIB_FUNC, QCA8K_MIB_FLUSH) |
- QCA8K_MIB_BUSY);
- if (ret)
- goto exit;
-
- ret = qca8k_busy_wait(priv, QCA8K_REG_MIB, QCA8K_MIB_BUSY);
- if (ret)
- goto exit;
-
- ret = regmap_set_bits(priv->regmap, QCA8K_REG_MIB, QCA8K_MIB_CPU_KEEP);
- if (ret)
- goto exit;
-
- ret = qca8k_write(priv, QCA8K_REG_MODULE_EN, QCA8K_MODULE_EN_MIB);
-
-exit:
- mutex_unlock(&priv->reg_mutex);
- return ret;
-}
-
static void
qca8k_port_set_status(struct qca8k_priv *priv, int port, int enable)
{
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index 91b3ad048392..926a66363cf8 100644
--- a/drivers/net/dsa/qca/qca8k-common.c
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -146,3 +146,364 @@ int qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len)

return 0;
}
+
+static int qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask)
+{
+ u32 val;
+
+ return regmap_read_poll_timeout(priv->regmap, reg, val, !(val & mask), 0,
+ QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC);
+}
+
+static int
+qca8k_fdb_read(struct qca8k_priv *priv, struct qca8k_fdb *fdb)
+{
+ u32 reg[3];
+ int ret;
+
+ /* load the ARL table into an array */
+ ret = qca8k_bulk_read(priv, QCA8K_REG_ATU_DATA0, reg, sizeof(reg));
+ if (ret)
+ return ret;
+
+ /* vid - 83:72 */
+ fdb->vid = FIELD_GET(QCA8K_ATU_VID_MASK, reg[2]);
+ /* aging - 67:64 */
+ fdb->aging = FIELD_GET(QCA8K_ATU_STATUS_MASK, reg[2]);
+ /* portmask - 54:48 */
+ fdb->port_mask = FIELD_GET(QCA8K_ATU_PORT_MASK, reg[1]);
+ /* mac - 47:0 */
+ fdb->mac[0] = FIELD_GET(QCA8K_ATU_ADDR0_MASK, reg[1]);
+ fdb->mac[1] = FIELD_GET(QCA8K_ATU_ADDR1_MASK, reg[1]);
+ fdb->mac[2] = FIELD_GET(QCA8K_ATU_ADDR2_MASK, reg[0]);
+ fdb->mac[3] = FIELD_GET(QCA8K_ATU_ADDR3_MASK, reg[0]);
+ fdb->mac[4] = FIELD_GET(QCA8K_ATU_ADDR4_MASK, reg[0]);
+ fdb->mac[5] = FIELD_GET(QCA8K_ATU_ADDR5_MASK, reg[0]);
+
+ return 0;
+}
+
+void
+qca8k_fdb_write(struct qca8k_priv *priv, u16 vid, u8 port_mask, const u8 *mac,
+ u8 aging)
+{
+ u32 reg[3] = { 0 };
+
+ /* vid - 83:72 */
+ reg[2] = FIELD_PREP(QCA8K_ATU_VID_MASK, vid);
+ /* aging - 67:64 */
+ reg[2] |= FIELD_PREP(QCA8K_ATU_STATUS_MASK, aging);
+ /* portmask - 54:48 */
+ reg[1] = FIELD_PREP(QCA8K_ATU_PORT_MASK, port_mask);
+ /* mac - 47:0 */
+ reg[1] |= FIELD_PREP(QCA8K_ATU_ADDR0_MASK, mac[0]);
+ reg[1] |= FIELD_PREP(QCA8K_ATU_ADDR1_MASK, mac[1]);
+ reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR2_MASK, mac[2]);
+ reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR3_MASK, mac[3]);
+ reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR4_MASK, mac[4]);
+ reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR5_MASK, mac[5]);
+
+ /* load the array into the ARL table */
+ qca8k_bulk_write(priv, QCA8K_REG_ATU_DATA0, reg, sizeof(reg));
+}
+
+int
+qca8k_fdb_access(struct qca8k_priv *priv, enum qca8k_fdb_cmd cmd, int port)
+{
+ u32 reg;
+ int ret;
+
+ /* Set the command and FDB index */
+ reg = QCA8K_ATU_FUNC_BUSY;
+ reg |= cmd;
+ if (port >= 0) {
+ reg |= QCA8K_ATU_FUNC_PORT_EN;
+ reg |= FIELD_PREP(QCA8K_ATU_FUNC_PORT_MASK, port);
+ }
+
+ /* Write the function register triggering the table access */
+ ret = qca8k_write(priv, QCA8K_REG_ATU_FUNC, reg);
+ if (ret)
+ return ret;
+
+ /* wait for completion */
+ ret = qca8k_busy_wait(priv, QCA8K_REG_ATU_FUNC, QCA8K_ATU_FUNC_BUSY);
+ if (ret)
+ return ret;
+
+ /* Check for table full violation when adding an entry */
+ if (cmd == QCA8K_FDB_LOAD) {
+ ret = qca8k_read(priv, QCA8K_REG_ATU_FUNC, &reg);
+ if (ret < 0)
+ return ret;
+ if (reg & QCA8K_ATU_FUNC_FULL)
+ return -1;
+ }
+
+ return 0;
+}
+
+int
+qca8k_fdb_next(struct qca8k_priv *priv, struct qca8k_fdb *fdb, int port)
+{
+ int ret;
+
+ qca8k_fdb_write(priv, fdb->vid, fdb->port_mask, fdb->mac, fdb->aging);
+ ret = qca8k_fdb_access(priv, QCA8K_FDB_NEXT, port);
+ if (ret < 0)
+ return ret;
+
+ return qca8k_fdb_read(priv, fdb);
+}
+
+int
+qca8k_fdb_add(struct qca8k_priv *priv, const u8 *mac, u16 port_mask,
+ u16 vid, u8 aging)
+{
+ int ret;
+
+ mutex_lock(&priv->reg_mutex);
+ qca8k_fdb_write(priv, vid, port_mask, mac, aging);
+ ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
+ mutex_unlock(&priv->reg_mutex);
+
+ return ret;
+}
+
+int
+qca8k_fdb_del(struct qca8k_priv *priv, const u8 *mac, u16 port_mask, u16 vid)
+{
+ int ret;
+
+ mutex_lock(&priv->reg_mutex);
+ qca8k_fdb_write(priv, vid, port_mask, mac, 0);
+ ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
+ mutex_unlock(&priv->reg_mutex);
+
+ return ret;
+}
+
+void
+qca8k_fdb_flush(struct qca8k_priv *priv)
+{
+ mutex_lock(&priv->reg_mutex);
+ qca8k_fdb_access(priv, QCA8K_FDB_FLUSH, -1);
+ mutex_unlock(&priv->reg_mutex);
+}
+
+int
+qca8k_fdb_search_and_insert(struct qca8k_priv *priv, u8 port_mask,
+ const u8 *mac, u16 vid)
+{
+ struct qca8k_fdb fdb = { 0 };
+ int ret;
+
+ mutex_lock(&priv->reg_mutex);
+
+ qca8k_fdb_write(priv, vid, 0, mac, 0);
+ ret = qca8k_fdb_access(priv, QCA8K_FDB_SEARCH, -1);
+ if (ret < 0)
+ goto exit;
+
+ ret = qca8k_fdb_read(priv, &fdb);
+ if (ret < 0)
+ goto exit;
+
+ /* Rule exist. Delete first */
+ if (!fdb.aging) {
+ ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
+ if (ret)
+ goto exit;
+ }
+
+ /* Add port to fdb portmask */
+ fdb.port_mask |= port_mask;
+
+ qca8k_fdb_write(priv, vid, fdb.port_mask, mac, fdb.aging);
+ ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
+
+exit:
+ mutex_unlock(&priv->reg_mutex);
+ return ret;
+}
+
+int
+qca8k_fdb_search_and_del(struct qca8k_priv *priv, u8 port_mask,
+ const u8 *mac, u16 vid)
+{
+ struct qca8k_fdb fdb = { 0 };
+ int ret;
+
+ mutex_lock(&priv->reg_mutex);
+
+ qca8k_fdb_write(priv, vid, 0, mac, 0);
+ ret = qca8k_fdb_access(priv, QCA8K_FDB_SEARCH, -1);
+ if (ret < 0)
+ goto exit;
+
+ /* Rule doesn't exist. Why delete? */
+ if (!fdb.aging) {
+ ret = -EINVAL;
+ goto exit;
+ }
+
+ ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
+ if (ret)
+ goto exit;
+
+ /* Only port in the rule is this port. Don't re insert */
+ if (fdb.port_mask == port_mask)
+ goto exit;
+
+ /* Remove port from port mask */
+ fdb.port_mask &= ~port_mask;
+
+ qca8k_fdb_write(priv, vid, fdb.port_mask, mac, fdb.aging);
+ ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
+
+exit:
+ mutex_unlock(&priv->reg_mutex);
+ return ret;
+}
+
+static int
+qca8k_vlan_access(struct qca8k_priv *priv, enum qca8k_vlan_cmd cmd, u16 vid)
+{
+ u32 reg;
+ int ret;
+
+ /* Set the command and VLAN index */
+ reg = QCA8K_VTU_FUNC1_BUSY;
+ reg |= cmd;
+ reg |= FIELD_PREP(QCA8K_VTU_FUNC1_VID_MASK, vid);
+
+ /* Write the function register triggering the table access */
+ ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC1, reg);
+ if (ret)
+ return ret;
+
+ /* wait for completion */
+ ret = qca8k_busy_wait(priv, QCA8K_REG_VTU_FUNC1, QCA8K_VTU_FUNC1_BUSY);
+ if (ret)
+ return ret;
+
+ /* Check for table full violation when adding an entry */
+ if (cmd == QCA8K_VLAN_LOAD) {
+ ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC1, &reg);
+ if (ret < 0)
+ return ret;
+ if (reg & QCA8K_VTU_FUNC1_FULL)
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+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;
+
+ ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC0, &reg);
+ if (ret < 0)
+ goto out;
+ reg |= QCA8K_VTU_FUNC0_VALID | QCA8K_VTU_FUNC0_IVL_EN;
+ reg &= ~QCA8K_VTU_FUNC0_EG_MODE_PORT_MASK(port);
+ if (untagged)
+ reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_UNTAG(port);
+ else
+ reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_TAG(port);
+
+ ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC0, reg);
+ if (ret)
+ goto out;
+ ret = qca8k_vlan_access(priv, QCA8K_VLAN_LOAD, vid);
+
+out:
+ mutex_unlock(&priv->reg_mutex);
+
+ return ret;
+}
+
+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;
+
+ ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC0, &reg);
+ if (ret < 0)
+ goto out;
+ reg &= ~QCA8K_VTU_FUNC0_EG_MODE_PORT_MASK(port);
+ reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_NOT(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_PORT_NOT(i);
+
+ if ((reg & mask) != mask) {
+ del = false;
+ break;
+ }
+ }
+
+ if (del) {
+ ret = qca8k_vlan_access(priv, QCA8K_VLAN_PURGE, vid);
+ } else {
+ ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC0, reg);
+ if (ret)
+ goto out;
+ ret = qca8k_vlan_access(priv, QCA8K_VLAN_LOAD, vid);
+ }
+
+out:
+ mutex_unlock(&priv->reg_mutex);
+
+ return ret;
+}
+
+int qca8k_mib_init(struct qca8k_priv *priv)
+{
+ int ret;
+
+ mutex_lock(&priv->reg_mutex);
+ ret = regmap_update_bits(priv->regmap, QCA8K_REG_MIB,
+ QCA8K_MIB_FUNC | QCA8K_MIB_BUSY,
+ FIELD_PREP(QCA8K_MIB_FUNC, QCA8K_MIB_FLUSH) |
+ QCA8K_MIB_BUSY);
+ if (ret)
+ goto exit;
+
+ ret = qca8k_busy_wait(priv, QCA8K_REG_MIB, QCA8K_MIB_BUSY);
+ if (ret)
+ goto exit;
+
+ ret = regmap_set_bits(priv->regmap, QCA8K_REG_MIB, QCA8K_MIB_CPU_KEEP);
+ if (ret)
+ goto exit;
+
+ ret = qca8k_write(priv, QCA8K_REG_MODULE_EN, QCA8K_MODULE_EN_MIB);
+
+exit:
+ mutex_unlock(&priv->reg_mutex);
+ return ret;
+}
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index 78dbecc41a3d..f9493354d74f 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -425,6 +425,7 @@ struct qca8k_fdb {
/* Common setup function */
extern const struct qca8k_mib_desc ar8327_mib[];
extern const struct regmap_access_table qca8k_readable_table;
+int qca8k_mib_init(struct qca8k_priv *priv);

/* Common read/write/rmw function */
int qca8k_read(struct qca8k_priv *priv, u32 reg, u32 *val);
@@ -434,4 +435,18 @@ int qca8k_rmw(struct qca8k_priv *priv, u32 reg, u32 mask, u32 write_val);
int qca8k_bulk_read(struct qca8k_priv *priv, u32 reg, u32 *val, int len);
int qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len);

+/* Common ops function */
+int qca8k_fdb_access(struct qca8k_priv *priv, enum qca8k_fdb_cmd cmd, int port);
+int qca8k_fdb_next(struct qca8k_priv *priv, struct qca8k_fdb *fdb, int port);
+int qca8k_fdb_add(struct qca8k_priv *priv, const u8 *mac, u16 port_mask,
+ u16 vid, u8 aging);
+int qca8k_fdb_del(struct qca8k_priv *priv, const u8 *mac, u16 port_mask, u16 vid);
+void qca8k_fdb_flush(struct qca8k_priv *priv);
+int qca8k_fdb_search_and_insert(struct qca8k_priv *priv, u8 port_mask,
+ const u8 *mac, u16 vid);
+int qca8k_fdb_search_and_del(struct qca8k_priv *priv, u8 port_mask,
+ const u8 *mac, u16 vid);
+int qca8k_vlan_add(struct qca8k_priv *priv, u8 port, u16 vid, bool untagged);
+int qca8k_vlan_del(struct qca8k_priv *priv, u8 port, u16 vid);
+
#endif /* __QCA8K_H */
--
2.36.1