ar71xx: add NAPI statistics to the ag71xx driver

[openwrt.git] / target / linux / ar71xx / files / drivers / net / ag71xx / ag71xx.h

diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
index 39a348a..139fc94 100644 (file)
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
@@ -1,7 +1,7 @@
 /*
  *  Atheros AR71xx built-in ethernet mac driver
  *
- *  Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
  *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
  *
  *  Based on Atheros' AG7100 driver
@@ -38,7 +38,7 @@
 #define ETH_FCS_LEN    4
 
 #define AG71XX_DRV_NAME                "ag71xx"
-#define AG71XX_DRV_VERSION     "0.5.23"
+#define AG71XX_DRV_VERSION     "0.5.25"
 
 #define AG71XX_NAPI_WEIGHT     64
 #define AG71XX_OOM_REFILL      (1 + HZ/10)
@@ -103,14 +103,46 @@ struct ag71xx_ring {
 };
 
 struct ag71xx_mdio {
-       struct mii_bus  *mii_bus;
-       int             mii_irq[PHY_MAX_ADDR];
-       void __iomem    *mdio_base;
+       struct mii_bus          *mii_bus;
+       int                     mii_irq[PHY_MAX_ADDR];
+       void __iomem            *mdio_base;
+       struct ag71xx_mdio_platform_data *pdata;
+};
+
+struct ag71xx_int_stats {
+       unsigned long           rx_pr;
+       unsigned long           rx_be;
+       unsigned long           rx_of;
+       unsigned long           tx_ps;
+       unsigned long           tx_be;
+       unsigned long           tx_ur;
+       unsigned long           total;
+};
+
+struct ag71xx_napi_stats {
+       unsigned long           napi_calls;
+       unsigned long           rx_count;
+       unsigned long           rx_packets;
+       unsigned long           rx_packets_max;
+       unsigned long           tx_count;
+       unsigned long           tx_packets;
+       unsigned long           tx_packets_max;
+
+       unsigned long           rx[AG71XX_NAPI_WEIGHT + 1];
+       unsigned long           tx[AG71XX_NAPI_WEIGHT + 1];
+};
+
+struct ag71xx_debug {
+       struct dentry           *debugfs_dir;
+       struct dentry           *debugfs_int_stats;
+       struct dentry           *debugfs_napi_stats;
+
+       struct ag71xx_int_stats int_stats;
+       struct ag71xx_napi_stats napi_stats;
 };
 
 struct ag71xx {
        void __iomem            *mac_base;
-       void __iomem            *mac_base2;
        void __iomem            *mii_ctrl;
 
        spinlock_t              lock;
@@ -131,11 +163,14 @@ struct ag71xx {
 
        struct work_struct      restart_work;
        struct timer_list       oom_timer;
+
+#ifdef CONFIG_AG71XX_DEBUG_FS
+       struct ag71xx_debug     debug;
+#endif
 };
 
 extern struct ethtool_ops ag71xx_ethtool_ops;
 
-extern struct ag71xx_mdio *ag71xx_mdio_bus;
 int ag71xx_mdio_driver_init(void) __init;
 void ag71xx_mdio_driver_exit(void);
 
@@ -314,14 +349,12 @@ static inline void ag71xx_wr(struct ag71xx *ag, unsigned reg, u32 value)
 
        switch (reg) {
        case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL:
-               r = ag->mac_base + reg;
-               __raw_writel(value, r);
-               __raw_readl(r);
-               break;
        case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_INT_STATUS:
-               r = ag->mac_base2 + reg - AG71XX_REG_MAC_IFCTL;
+               r = ag->mac_base + reg;
                __raw_writel(value, r);
-               __raw_readl(r);
+
+               /* flush write */
+               (void) __raw_readl(r);
                break;
        default:
                BUG();
@@ -335,11 +368,8 @@ static inline u32 ag71xx_rr(struct ag71xx *ag, unsigned reg)
 
        switch (reg) {
        case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL:
-               r = ag->mac_base + reg;
-               ret = __raw_readl(r);
-               break;
        case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_INT_STATUS:
-               r = ag->mac_base2 + reg - AG71XX_REG_MAC_IFCTL;
+               r = ag->mac_base + reg;
                ret = __raw_readl(r);
                break;
        default:
@@ -355,14 +385,12 @@ static inline void ag71xx_sb(struct ag71xx *ag, unsigned reg, u32 mask)
 
        switch (reg) {
        case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL:
-               r = ag->mac_base + reg;
-               __raw_writel(__raw_readl(r) | mask, r);
-               __raw_readl(r);
-               break;
        case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_INT_STATUS:
-               r = ag->mac_base2 + reg - AG71XX_REG_MAC_IFCTL;
+               r = ag->mac_base + reg;
                __raw_writel(__raw_readl(r) | mask, r);
-               __raw_readl(r);
+
+               /* flush write */
+               (void)__raw_readl(r);
                break;
        default:
                BUG();
@@ -375,14 +403,12 @@ static inline void ag71xx_cb(struct ag71xx *ag, unsigned reg, u32 mask)
 
        switch (reg) {
        case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL:
-               r = ag->mac_base + reg;
-               __raw_writel(__raw_readl(r) & ~mask, r);
-               __raw_readl(r);
-               break;
        case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_INT_STATUS:
-               r = ag->mac_base2 + reg - AG71XX_REG_MAC_IFCTL;
+               r = ag->mac_base + reg;
                __raw_writel(__raw_readl(r) & ~mask, r);
-               __raw_readl(r);
+
+               /* flush write */
+               (void) __raw_readl(r);
                break;
        default:
                BUG();
@@ -407,6 +433,8 @@ static inline void ag71xx_mii_ctrl_wr(struct ag71xx *ag, u32 value)
                return;
 
        __raw_writel(value, ag->mii_ctrl);
+
+       /* flush write */
        __raw_readl(ag->mii_ctrl);
 }
 
@@ -458,4 +486,22 @@ static inline int ag71xx_remove_ar8216_header(struct ag71xx *ag,
 }
 #endif
 
+#ifdef CONFIG_AG71XX_DEBUG_FS
+int ag71xx_debugfs_root_init(void);
+void ag71xx_debugfs_root_exit(void);
+int ag71xx_debugfs_init(struct ag71xx *ag);
+void ag71xx_debugfs_exit(struct ag71xx *ag);
+void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status);
+void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx);
+#else
+static inline int ag71xx_debugfs_root_init(void) { return 0; }
+static inline void ag71xx_debugfs_root_exit(void) {}
+static inline int ag71xx_debugfs_init(struct ag71xx *ag) { return 0; }
+static inline void ag71xx_debugfs_exit(struct ag71xx *ag) {}
+static inline void ag71xx_debugfs_update_int_stats(struct ag71xx *ag,
+                                                  u32 status) {}
+static inline void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag,
+                                                   int rx, int tx) {}
+#endif /* CONFIG_AG71XX_DEBUG_FS */
+
 #endif /* _AG71XX_H */