net: dsa: mv88e6xxx: global2: Expose ATU stats register

Add helpers to set/get the ATU statistics register.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/dsa/mv88e6xxx/global2.c b/drivers/net/dsa/mv88e6xxx/global2.c
index bdbb72f..14954d9 100644 (file)
--- a/drivers/net/dsa/mv88e6xxx/global2.c
+++ b/drivers/net/dsa/mv88e6xxx/global2.c
@@ -280,6 +280,26 @@ int mv88e6xxx_g2_set_switch_mac(struct mv88e6xxx_chip *chip, u8 *addr)
        return err;
 }
 
+/* Offset 0x0E: ATU Statistics */
+
+int mv88e6xxx_g2_atu_stats_set(struct mv88e6xxx_chip *chip, u16 kind, u16 bin)
+{
+       return mv88e6xxx_g2_write(chip, MV88E6XXX_G2_ATU_STATS,
+                                 kind | bin);
+}
+
+int mv88e6xxx_g2_atu_stats_get(struct mv88e6xxx_chip *chip)
+{
+       int err;
+       u16 val;
+
+       err = mv88e6xxx_g2_read(chip, MV88E6XXX_G2_ATU_STATS, &val);
+       if (err)
+               return err;
+
+       return val & MV88E6XXX_G2_ATU_STATS_MASK;
+}
+
 /* Offset 0x0F: Priority Override Table */
 
 static int mv88e6xxx_g2_pot_write(struct mv88e6xxx_chip *chip, int pointer,

diff --git a/drivers/net/dsa/mv88e6xxx/global2.h b/drivers/net/dsa/mv88e6xxx/global2.h
index 42da4bc..a308ca7 100644 (file)
--- a/drivers/net/dsa/mv88e6xxx/global2.h
+++ b/drivers/net/dsa/mv88e6xxx/global2.h
@@ -113,7 +113,16 @@
 #define MV88E6XXX_G2_SWITCH_MAC_DATA_MASK      0x00ff
 
 /* Offset 0x0E: ATU Stats Register */
-#define MV88E6XXX_G2_ATU_STATS         0x0e
+#define MV88E6XXX_G2_ATU_STATS                         0x0e
+#define MV88E6XXX_G2_ATU_STATS_BIN_0                   (0x0 << 14)
+#define MV88E6XXX_G2_ATU_STATS_BIN_1                   (0x1 << 14)
+#define MV88E6XXX_G2_ATU_STATS_BIN_2                   (0x2 << 14)
+#define MV88E6XXX_G2_ATU_STATS_BIN_3                   (0x3 << 14)
+#define MV88E6XXX_G2_ATU_STATS_MODE_ALL                        (0x0 << 12)
+#define MV88E6XXX_G2_ATU_STATS_MODE_ALL_DYNAMIC                (0x1 << 12)
+#define MV88E6XXX_G2_ATU_STATS_MODE_FID_ALL            (0x2 << 12)
+#define MV88E6XXX_G2_ATU_STATS_MODE_FID_ALL_DYNAMIC    (0x3 << 12)
+#define MV88E6XXX_G2_ATU_STATS_MASK                    0x0fff
 
 /* Offset 0x0F: Priority Override Table */
 #define MV88E6XXX_G2_PRIO_OVERRIDE             0x0f
@@ -353,6 +362,8 @@ extern const struct mv88e6xxx_gpio_ops mv88e6352_gpio_ops;
 
 int mv88e6xxx_g2_scratch_gpio_set_smi(struct mv88e6xxx_chip *chip,
                                      bool external);
+int mv88e6xxx_g2_atu_stats_set(struct mv88e6xxx_chip *chip, u16 kind, u16 bin);
+int mv88e6xxx_g2_atu_stats_get(struct mv88e6xxx_chip *chip);
 
 #else /* !CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */
 
@@ -515,6 +526,17 @@ static inline int mv88e6xxx_g2_device_mapping_write(struct mv88e6xxx_chip *chip,
        return -EOPNOTSUPP;
 }
 
+static inline int mv88e6xxx_g2_atu_stats_set(struct mv88e6xxx_chip *chip,
+                                            u16 kind, u16 bin)
+{
+       return -EOPNOTSUPP;
+}
+
+static inline int mv88e6xxx_g2_atu_stats_get(struct mv88e6xxx_chip *chip)
+{
+       return -EOPNOTSUPP;
+}
+
 #endif /* CONFIG_NET_DSA_MV88E6XXX_GLOBAL2 */
 
 #endif /* _MV88E6XXX_GLOBAL2_H */