realtek: Add L2 aging configuration functions for all SoC families

Instead of a generic L2 aging configuration function with complex
logic, we implement an individual function for all SoC types.

Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Birger Koblitz <git@birger-koblitz.de>

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/dsa.c

@@ -1039,25 +1039,11 @@ static int rtl93xx_get_mac_eee(struct dsa_switch *ds, int port,
 	return 0;
 }
 
-/*
+static int rtl83xx_set_ageing_time(struct dsa_switch *ds, unsigned int msec)
- * Set Switch L2 Aging time, t is time in milliseconds
- * t = 0: aging is disabled
- */
-static int rtl83xx_set_l2aging(struct dsa_switch *ds, u32 t)
 {
 	struct rtl838x_switch_priv *priv = ds->priv;
-	int t_max = priv->family_id == RTL8380_FAMILY_ID ? 0x7fffff : 0x1FFFFF;
 
-	/* Convert time in mseconds to internal value */
+	priv->r->set_ageing_time(msec);
-	if (t > 0x10000000) { /* Set to maximum */
-		t = t_max;
-	} else {
-		if (priv->family_id == RTL8380_FAMILY_ID)
-			t = ((t * 625) / 1000 + 127) / 128;
-		else
-			t = (t * 5 + 2) / 3;
-	}
-	sw_w32(t, priv->r->l2_ctrl_1);
 	return 0;
 }
 
@@ -2137,7 +2123,7 @@ const struct dsa_switch_ops rtl83xx_switch_ops = {
 	.get_mac_eee		= rtl83xx_get_mac_eee,
 	.set_mac_eee		= rtl83xx_set_mac_eee,
 
-	.set_ageing_time	= rtl83xx_set_l2aging,
+	.set_ageing_time	= rtl83xx_set_ageing_time,
 	.port_bridge_join	= rtl83xx_port_bridge_join,
 	.port_bridge_leave	= rtl83xx_port_bridge_leave,
 	.port_stp_state_set	= rtl83xx_port_stp_state_set,
@@ -2190,7 +2176,7 @@ const struct dsa_switch_ops rtl930x_switch_ops = {
 	.get_mac_eee		= rtl93xx_get_mac_eee,
 	.set_mac_eee		= rtl83xx_set_mac_eee,
 
-	.set_ageing_time	= rtl83xx_set_l2aging,
+	.set_ageing_time	= rtl83xx_set_ageing_time,
 	.port_bridge_join	= rtl83xx_port_bridge_join,
 	.port_bridge_leave	= rtl83xx_port_bridge_leave,
 	.port_stp_state_set	= rtl83xx_port_stp_state_set,

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl838x.c

@@ -1637,6 +1637,22 @@ void rtl838x_vlan_port_pvid_set(int port, enum pbvlan_type type, int pvid)
 		sw_w32_mask(0xfff << 16, pvid << 16, RTL838X_VLAN_PORT_PB_VLAN + (port << 2));
 }
 
+static int rtl838x_set_ageing_time(unsigned long msec)
+{
+	int t = sw_r32(RTL838X_L2_CTRL_1);
+
+	t &= 0x7FFFFF;
+	t = t * 128 / 625; /* Aging time in seconds. 0: L2 aging disabled */
+	pr_debug("L2 AGING time: %d sec\n", t);
+
+	t = (msec * 625 + 127000) / 128000;
+	t = t > 0x7FFFFF ? 0x7FFFFF : t;
+	sw_w32_mask(0x7FFFFF, t, RTL838X_L2_CTRL_1);
+	pr_debug("Dynamic aging for ports: %x\n", sw_r32(RTL838X_L2_PORT_AGING_OUT));
+
+	return 0;
+}
+
 static void rtl838x_set_igr_filter(int port, enum igr_filter state)
 {
 	sw_w32_mask(0x3 << ((port & 0xf)<<1), state << ((port & 0xf)<<1),
@@ -1675,6 +1691,7 @@ const struct rtl838x_reg rtl838x_reg = {
 	.l2_ctrl_0 = RTL838X_L2_CTRL_0,
 	.l2_ctrl_1 = RTL838X_L2_CTRL_1,
 	.l2_port_aging_out = RTL838X_L2_PORT_AGING_OUT,
+	.set_ageing_time = rtl838x_set_ageing_time,
 	.smi_poll_ctrl = RTL838X_SMI_POLL_CTRL,
 	.l2_tbl_flush_ctrl = RTL838X_L2_TBL_FLUSH_CTRL,
 	.exec_tbl0_cmd = rtl838x_exec_tbl0_cmd,

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl838x.h

@@ -851,8 +851,8 @@ struct rtl838x_reg {
 	u64 (*traffic_get)(int source);
 	int l2_ctrl_0;
 	int l2_ctrl_1;
-	int l2_port_aging_out;
 	int smi_poll_ctrl;
+	u32 l2_port_aging_out;
 	int l2_tbl_flush_ctrl;
 	void (*exec_tbl0_cmd)(u32 cmd);
 	void (*exec_tbl1_cmd)(u32 cmd);
@@ -880,6 +880,7 @@ struct rtl838x_reg {
 	int  (*mac_port_ctrl)(int port);
 	int  (*l2_port_new_salrn)(int port);
 	int  (*l2_port_new_sa_fwd)(int port);
+	int (*set_ageing_time)(unsigned long msec);
 	int mir_ctrl;
 	int mir_dpm;
 	int mir_spm;

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl839x.c

@@ -1762,6 +1762,22 @@ void rtl839x_vlan_port_pvid_set(int port, enum pbvlan_type type, int pvid)
 		sw_w32_mask(0xfff << 16, pvid << 16, RTL839X_VLAN_PORT_PB_VLAN + (port << 2));
 }
 
+static int rtl839x_set_ageing_time(unsigned long msec)
+{
+	int t = sw_r32(RTL839X_L2_CTRL_1);
+
+	t &= 0x1FFFFF;
+	t = t * 3 / 5; /* Aging time in seconds. 0: L2 aging disabled */
+	pr_debug("L2 AGING time: %d sec\n", t);
+
+	t = (msec * 5 + 2000) / 3000;
+	t = t > 0x1FFFFF ? 0x1FFFFF : t;
+	sw_w32_mask(0x1FFFFF, t, RTL839X_L2_CTRL_1);
+	pr_debug("Dynamic aging for ports: %x\n", sw_r32(RTL839X_L2_PORT_AGING_OUT));
+
+	return 0;
+}
+
 static void rtl839x_set_igr_filter(int port,  enum igr_filter state)
 {
 	sw_w32_mask(0x3 << ((port & 0xf)<<1), state << ((port & 0xf)<<1),
@@ -1799,6 +1815,7 @@ const struct rtl838x_reg rtl839x_reg = {
 	.l2_ctrl_0 = RTL839X_L2_CTRL_0,
 	.l2_ctrl_1 = RTL839X_L2_CTRL_1,
 	.l2_port_aging_out = RTL839X_L2_PORT_AGING_OUT,
+	.set_ageing_time = rtl839x_set_ageing_time,
 	.smi_poll_ctrl = RTL839X_SMI_PORT_POLLING_CTRL,
 	.l2_tbl_flush_ctrl = RTL839X_L2_TBL_FLUSH_CTRL,
 	.exec_tbl0_cmd = rtl839x_exec_tbl0_cmd,

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl930x.c

@@ -2332,6 +2332,22 @@ void rtl930x_vlan_port_pvid_set(int port, enum pbvlan_type type, int pvid)
 		sw_w32_mask(0xfff << 16, pvid << 16, RTL930X_VLAN_PORT_PB_VLAN + (port << 2));
 }
 
+static int rtl930x_set_ageing_time(unsigned long msec)
+{
+	int t = sw_r32(RTL930X_L2_AGE_CTRL);
+
+	t &= 0x1FFFFF;
+	t = (t * 7) / 10;
+	pr_debug("L2 AGING time: %d sec\n", t);
+
+	t = (msec / 100 + 6) / 7;
+	t = t > 0x1FFFFF ? 0x1FFFFF : t;
+	sw_w32_mask(0x1FFFFF, t, RTL930X_L2_AGE_CTRL);
+	pr_debug("Dynamic aging for ports: %x\n", sw_r32(RTL930X_L2_PORT_AGE_CTRL));
+
+	return 0;
+}
+
 static void rtl930x_set_igr_filter(int port,  enum igr_filter state)
 {
 	sw_w32_mask(0x3 << ((port & 0xf)<<1), state << ((port & 0xf)<<1),
@@ -2401,6 +2417,7 @@ const struct rtl838x_reg rtl930x_reg = {
 	.l2_ctrl_0 = RTL930X_L2_CTRL,
 	.l2_ctrl_1 = RTL930X_L2_AGE_CTRL,
 	.l2_port_aging_out = RTL930X_L2_PORT_AGE_CTRL,
+	.set_ageing_time = rtl930x_set_ageing_time,
 	.smi_poll_ctrl = RTL930X_SMI_POLL_CTRL, // TODO: Difference to RTL9300_SMI_PRVTE_POLLING_CTRL
 	.l2_tbl_flush_ctrl = RTL930X_L2_TBL_FLUSH_CTRL,
 	.exec_tbl0_cmd = rtl930x_exec_tbl0_cmd,

target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl931x.c

@@ -439,6 +439,7 @@ const struct rtl838x_reg rtl931x_reg = {
 	.l2_ctrl_0 = RTL931X_L2_CTRL,
 	.l2_ctrl_1 = RTL931X_L2_AGE_CTRL,
 	.l2_port_aging_out = RTL931X_L2_PORT_AGE_CTRL,
+	.set_ageing_time = rtl931x_set_ageing_time,
 	// .smi_poll_ctrl does not exist
 	.l2_tbl_flush_ctrl = RTL931X_L2_TBL_FLUSH_CTRL,
 	.exec_tbl0_cmd = rtl931x_exec_tbl0_cmd,