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Message-ID: <20220420072647.22192-1-arun.ramadoss@microchip.com>
Date: Wed, 20 Apr 2022 12:56:47 +0530
From: Arun Ramadoss <arun.ramadoss@...rochip.com>
To: <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
CC: Paolo Abeni <pabeni@...hat.com>, Jakub Kicinski <kuba@...nel.org>,
"David S. Miller" <davem@...emloft.net>,
Vladimir Oltean <olteanv@...il.com>,
Florian Fainelli <f.fainelli@...il.com>,
Vivien Didelot <vivien.didelot@...il.com>,
Andrew Lunn <andrew@...n.ch>, <UNGLinuxDriver@...rochip.com>,
Woojung Huh <woojung.huh@...rochip.com>
Subject: [RFC Patch net-next] net: dsa: ksz: added the generic port_stp_state_set function
The ksz8795 and ksz9477 uses the same algorithm for the
port_stp_state_set function except the register address is different. So
moved the algorithm to the ksz_common.c and used the dev_ops for
register read and write. This function can also used for the lan937x
part. Hence making it generic for all the parts.
Signed-off-by: Arun Ramadoss <arun.ramadoss@...rochip.com>
---
drivers/net/dsa/microchip/ksz8795.c | 37 ++++---------------------
drivers/net/dsa/microchip/ksz8795_reg.h | 3 --
drivers/net/dsa/microchip/ksz9477.c | 36 ++++--------------------
drivers/net/dsa/microchip/ksz9477_reg.h | 4 ---
drivers/net/dsa/microchip/ksz_common.c | 37 +++++++++++++++++++++++++
drivers/net/dsa/microchip/ksz_common.h | 8 ++++++
6 files changed, 55 insertions(+), 70 deletions(-)
diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index b2752978cb09..0873b668913d 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -1025,42 +1025,14 @@ static void ksz8_cfg_port_member(struct ksz_device *dev, int port, u8 member)
ksz_pwrite8(dev, port, P_MIRROR_CTRL, data);
}
-static void ksz8_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
+static void ksz8_cfg_stp_state(struct ksz_device *dev, int port, u8 val)
{
- struct ksz_device *dev = ds->priv;
- struct ksz_port *p;
u8 data;
ksz_pread8(dev, port, P_STP_CTRL, &data);
data &= ~(PORT_TX_ENABLE | PORT_RX_ENABLE | PORT_LEARN_DISABLE);
-
- switch (state) {
- case BR_STATE_DISABLED:
- data |= PORT_LEARN_DISABLE;
- break;
- case BR_STATE_LISTENING:
- data |= (PORT_RX_ENABLE | PORT_LEARN_DISABLE);
- break;
- case BR_STATE_LEARNING:
- data |= PORT_RX_ENABLE;
- break;
- case BR_STATE_FORWARDING:
- data |= (PORT_TX_ENABLE | PORT_RX_ENABLE);
- break;
- case BR_STATE_BLOCKING:
- data |= PORT_LEARN_DISABLE;
- break;
- default:
- dev_err(ds->dev, "invalid STP state: %d\n", state);
- return;
- }
-
+ data |= val;
ksz_pwrite8(dev, port, P_STP_CTRL, data);
-
- p = &dev->ports[port];
- p->stp_state = state;
-
- ksz_update_port_member(dev, port);
}
static void ksz8_flush_dyn_mac_table(struct ksz_device *dev, int port)
@@ -1385,7 +1357,7 @@ static void ksz8_config_cpu_port(struct dsa_switch *ds)
for (i = 0; i < dev->phy_port_cnt; i++) {
p = &dev->ports[i];
- ksz8_port_stp_state_set(ds, i, BR_STATE_DISABLED);
+ ksz_port_stp_state_set(ds, i, BR_STATE_DISABLED);
/* Last port may be disabled. */
if (i == dev->phy_port_cnt)
@@ -1542,7 +1514,7 @@ static const struct dsa_switch_ops ksz8_switch_ops = {
.get_sset_count = ksz_sset_count,
.port_bridge_join = ksz_port_bridge_join,
.port_bridge_leave = ksz_port_bridge_leave,
- .port_stp_state_set = ksz8_port_stp_state_set,
+ .port_stp_state_set = ksz_port_stp_state_set,
.port_fast_age = ksz_port_fast_age,
.port_vlan_filtering = ksz8_port_vlan_filtering,
.port_vlan_add = ksz8_port_vlan_add,
@@ -1761,6 +1733,7 @@ static const struct ksz_dev_ops ksz8_dev_ops = {
.cfg_port_member = ksz8_cfg_port_member,
.flush_dyn_mac_table = ksz8_flush_dyn_mac_table,
.port_setup = ksz8_port_setup,
+ .cfg_stp_state = ksz8_cfg_stp_state,
.r_phy = ksz8_r_phy,
.w_phy = ksz8_w_phy,
.r_dyn_mac_table = ksz8_r_dyn_mac_table,
diff --git a/drivers/net/dsa/microchip/ksz8795_reg.h b/drivers/net/dsa/microchip/ksz8795_reg.h
index d74defcd86b4..4109433b6b6c 100644
--- a/drivers/net/dsa/microchip/ksz8795_reg.h
+++ b/drivers/net/dsa/microchip/ksz8795_reg.h
@@ -160,9 +160,6 @@
#define PORT_DISCARD_NON_VID BIT(5)
#define PORT_FORCE_FLOW_CTRL BIT(4)
#define PORT_BACK_PRESSURE BIT(3)
-#define PORT_TX_ENABLE BIT(2)
-#define PORT_RX_ENABLE BIT(1)
-#define PORT_LEARN_DISABLE BIT(0)
#define REG_PORT_1_CTRL_3 0x13
#define REG_PORT_2_CTRL_3 0x23
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 8222c8a6c5ec..96248de95749 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -514,41 +514,14 @@ static void ksz9477_cfg_port_member(struct ksz_device *dev, int port,
ksz_pwrite32(dev, port, REG_PORT_VLAN_MEMBERSHIP__4, member);
}
-static void ksz9477_port_stp_state_set(struct dsa_switch *ds, int port,
- u8 state)
+static void ksz9477_cfg_stp_state(struct ksz_device *dev, int port, u8 val)
{
- struct ksz_device *dev = ds->priv;
- struct ksz_port *p = &dev->ports[port];
u8 data;
ksz_pread8(dev, port, P_STP_CTRL, &data);
data &= ~(PORT_TX_ENABLE | PORT_RX_ENABLE | PORT_LEARN_DISABLE);
-
- switch (state) {
- case BR_STATE_DISABLED:
- data |= PORT_LEARN_DISABLE;
- break;
- case BR_STATE_LISTENING:
- data |= (PORT_RX_ENABLE | PORT_LEARN_DISABLE);
- break;
- case BR_STATE_LEARNING:
- data |= PORT_RX_ENABLE;
- break;
- case BR_STATE_FORWARDING:
- data |= (PORT_TX_ENABLE | PORT_RX_ENABLE);
- break;
- case BR_STATE_BLOCKING:
- data |= PORT_LEARN_DISABLE;
- break;
- default:
- dev_err(ds->dev, "invalid STP state: %d\n", state);
- return;
- }
-
+ data |= val;
ksz_pwrite8(dev, port, P_STP_CTRL, data);
- p->stp_state = state;
-
- ksz_update_port_member(dev, port);
}
static void ksz9477_flush_dyn_mac_table(struct ksz_device *dev, int port)
@@ -1404,7 +1377,7 @@ static void ksz9477_config_cpu_port(struct dsa_switch *ds)
continue;
p = &dev->ports[i];
- ksz9477_port_stp_state_set(ds, i, BR_STATE_DISABLED);
+ ksz_port_stp_state_set(ds, i, BR_STATE_DISABLED);
p->on = 1;
if (i < dev->phy_port_cnt)
p->phy = 1;
@@ -1481,7 +1454,7 @@ static const struct dsa_switch_ops ksz9477_switch_ops = {
.get_sset_count = ksz_sset_count,
.port_bridge_join = ksz_port_bridge_join,
.port_bridge_leave = ksz_port_bridge_leave,
- .port_stp_state_set = ksz9477_port_stp_state_set,
+ .port_stp_state_set = ksz_port_stp_state_set,
.port_fast_age = ksz_port_fast_age,
.port_vlan_filtering = ksz9477_port_vlan_filtering,
.port_vlan_add = ksz9477_port_vlan_add,
@@ -1682,6 +1655,7 @@ static const struct ksz_dev_ops ksz9477_dev_ops = {
.cfg_port_member = ksz9477_cfg_port_member,
.flush_dyn_mac_table = ksz9477_flush_dyn_mac_table,
.port_setup = ksz9477_port_setup,
+ .cfg_stp_state = ksz9477_cfg_stp_state,
.r_mib_cnt = ksz9477_r_mib_cnt,
.r_mib_pkt = ksz9477_r_mib_pkt,
.r_mib_stat64 = ksz9477_r_mib_stats64,
diff --git a/drivers/net/dsa/microchip/ksz9477_reg.h b/drivers/net/dsa/microchip/ksz9477_reg.h
index 0bd58467181f..7a2c8d4767af 100644
--- a/drivers/net/dsa/microchip/ksz9477_reg.h
+++ b/drivers/net/dsa/microchip/ksz9477_reg.h
@@ -1586,10 +1586,6 @@
#define REG_PORT_LUE_MSTP_STATE 0x0B04
-#define PORT_TX_ENABLE BIT(2)
-#define PORT_RX_ENABLE BIT(1)
-#define PORT_LEARN_DISABLE BIT(0)
-
/* C - PTP */
#define REG_PTP_PORT_RX_DELAY__2 0x0C00
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 8014b18d9391..08e8f09b6bc0 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -372,6 +372,43 @@ int ksz_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy)
}
EXPORT_SYMBOL_GPL(ksz_enable_port);
+void ksz_port_stp_state_set(struct dsa_switch *ds, int port,
+ u8 state)
+{
+ struct ksz_device *dev = ds->priv;
+ struct ksz_port *p;
+ u8 data;
+
+ switch (state) {
+ case BR_STATE_DISABLED:
+ data = PORT_LEARN_DISABLE;
+ break;
+ case BR_STATE_LISTENING:
+ data = (PORT_RX_ENABLE | PORT_LEARN_DISABLE);
+ break;
+ case BR_STATE_LEARNING:
+ data = PORT_RX_ENABLE;
+ break;
+ case BR_STATE_FORWARDING:
+ data = (PORT_TX_ENABLE | PORT_RX_ENABLE);
+ break;
+ case BR_STATE_BLOCKING:
+ data = PORT_LEARN_DISABLE;
+ break;
+ default:
+ dev_err(ds->dev, "invalid STP state: %d\n", state);
+ return;
+ }
+
+ dev->dev_ops->cfg_stp_state(dev, port, data);
+
+ p = &dev->ports[port];
+ p->stp_state = state;
+
+ ksz_update_port_member(dev, port);
+}
+EXPORT_SYMBOL_GPL(ksz_port_stp_state_set);
+
struct ksz_device *ksz_switch_alloc(struct device *base, void *priv)
{
struct dsa_switch *ds;
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index 485d4a948c38..360b98c7b0d2 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -119,6 +119,7 @@ struct ksz_dev_ops {
void (*flush_dyn_mac_table)(struct ksz_device *dev, int port);
void (*port_cleanup)(struct ksz_device *dev, int port);
void (*port_setup)(struct ksz_device *dev, int port, bool cpu_port);
+ void (*cfg_stp_state)(struct ksz_device *dev, int port, u8 state);
void (*r_phy)(struct ksz_device *dev, u16 phy, u16 reg, u16 *val);
void (*w_phy)(struct ksz_device *dev, u16 phy, u16 reg, u16 val);
int (*r_dyn_mac_table)(struct ksz_device *dev, u16 addr, u8 *mac_addr,
@@ -165,6 +166,8 @@ int ksz_port_bridge_join(struct dsa_switch *ds, int port,
struct netlink_ext_ack *extack);
void ksz_port_bridge_leave(struct dsa_switch *ds, int port,
struct dsa_bridge bridge);
+void ksz_port_stp_state_set(struct dsa_switch *ds, int port,
+ u8 state);
void ksz_port_fast_age(struct dsa_switch *ds, int port);
int ksz_port_fdb_dump(struct dsa_switch *ds, int port, dsa_fdb_dump_cb_t *cb,
void *data);
@@ -292,6 +295,11 @@ static inline void ksz_regmap_unlock(void *__mtx)
mutex_unlock(mtx);
}
+/* STP State Defines */
+#define PORT_TX_ENABLE BIT(2)
+#define PORT_RX_ENABLE BIT(1)
+#define PORT_LEARN_DISABLE BIT(0)
+
/* Regmap tables generation */
#define KSZ_SPI_OP_RD 3
#define KSZ_SPI_OP_WR 2
base-commit: cc4bdef26ecd56de16a04bc6d99aa10ff9076498
--
2.33.0
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