ar8216: add swconfig attribute to display ARL table on AR8327/AR8337

Add global read-only swconfig attribute "arl_table" to display the
address resolution table.
So far the chip-specific part is implemented for AR8327/AR8337 only
as I don't have the datasheets for the other AR8XXX chips.

Successfully tested on TL-WDR4300 (AR8327rev2)
and TL-WDR4900 (AR8327rev4).

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>

SVN-Revision: 44104

1 files changed, 37 insertions, 0 deletions

diff --git a/target/linux/generic/files/drivers/net/phy/ar8216.h b/target/linux/generic/files/drivers/net/phy/ar8216.h
index 77df506..7163cf4 100644
--- a/target/linux/generic/files/drivers/net/phy/ar8216.h
+++ b/target/linux/generic/files/drivers/net/phy/ar8216.h
@@ -337,6 +337,18 @@ enum {
 	AR8XXX_VER_AR8337 = 0x13,
 };
 
+#define AR8XXX_NUM_ARL_RECORDS	100
+
+enum arl_op {
+	AR8XXX_ARL_INITIALIZE,
+	AR8XXX_ARL_GET_NEXT
+};
+
+struct arl_entry {
+	u8 port;
+	u8 mac[6];
+};
+
 struct ar8xxx_priv;
 
 struct ar8xxx_mib_desc {
@@ -372,6 +384,8 @@ struct ar8xxx_chip {
 	void (*vtu_load_vlan)(struct ar8xxx_priv *priv, u32 vid, u32 port_mask);
 	void (*phy_fixup)(struct ar8xxx_priv *priv, int phy);
 	void (*set_mirror_regs)(struct ar8xxx_priv *priv);
+	void (*get_arl_entry)(struct ar8xxx_priv *priv, struct arl_entry *a,
+			      u32 *status, enum arl_op op);
 	int (*sw_hw_apply)(struct switch_dev *dev);
 
 	const struct ar8xxx_mib_desc *mib_decs;
@@ -396,6 +410,8 @@ struct ar8xxx_priv {
 	bool initialized;
 	bool port4_phy;
 	char buf[2048];
+	struct arl_entry arl_table[AR8XXX_NUM_ARL_RECORDS];
+	char arl_buf[AR8XXX_NUM_ARL_RECORDS * 32 + 256];
 	bool link_up[AR8X16_MAX_PORTS];
 
 	bool init;
@@ -423,6 +439,10 @@ struct ar8xxx_priv {
 };
 
 u32
+mii_read32(struct ar8xxx_priv *priv, int phy_id, int regnum);
+void
+mii_write32(struct ar8xxx_priv *priv, int phy_id, int regnum, u32 val);
+u32
 ar8xxx_read(struct ar8xxx_priv *priv, int reg);
 void
 ar8xxx_write(struct ar8xxx_priv *priv, int reg, u32 val);
@@ -500,6 +520,10 @@ ar8xxx_sw_get_port_mib(struct switch_dev *dev,
                        const struct switch_attr *attr,
                        struct switch_val *val);
 int
+ar8xxx_sw_get_arl_table(struct switch_dev *dev,
+			const struct switch_attr *attr,
+			struct switch_val *val);
+int
 ar8216_wait_bit(struct ar8xxx_priv *priv, int reg, u32 mask, u32 val);
 
 static inline struct ar8xxx_priv *
@@ -556,6 +580,19 @@ ar8xxx_reg_clear(struct ar8xxx_priv *priv, int reg, u32 val)
 }
 
 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;
+}
+
+static inline void
 wait_for_page_switch(void)
 {
 	udelay(5);