From 817e11de2d3392041a70c80a6d5b353ad210f276 Mon Sep 17 00:00:00 2001
From: Sujith
Date: Sun, 7 Dec 2008 21:42:44 +0530
Subject: ath9k: Add a debugfs file to show interrupt statistics

Location: ath9k/<phy>/interrupt

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath9k/core.h | 55 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

(limited to 'drivers/net/wireless/ath9k/core.h')

diff --git a/drivers/net/wireless/ath9k/core.h b/drivers/net/wireless/ath9k/core.h
index 23844e02eff1..9abdbd8686e7 100644
--- a/drivers/net/wireless/ath9k/core.h
+++ b/drivers/net/wireless/ath9k/core.h
@@ -88,16 +88,66 @@ enum ATH_DEBUG {
 
 #ifdef CONFIG_ATH9K_DEBUG
 
+/**
+ * struct ath_interrupt_stats - Contains statistics about interrupts
+ * @total: Total no. of interrupts generated so far
+ * @rxok: RX with no errors
+ * @rxeol: RX with no more RXDESC available
+ * @rxorn: RX FIFO overrun
+ * @txok: TX completed at the requested rate
+ * @txurn: TX FIFO underrun
+ * @mib: MIB regs reaching its threshold
+ * @rxphyerr: RX with phy errors
+ * @rx_keycache_miss: RX with key cache misses
+ * @swba: Software Beacon Alert
+ * @bmiss: Beacon Miss
+ * @bnr: Beacon Not Ready
+ * @cst: Carrier Sense TImeout
+ * @gtt: Global TX Timeout
+ * @tim: RX beacon TIM occurrence
+ * @cabend: RX End of CAB traffic
+ * @dtimsync: DTIM sync lossage
+ * @dtim: RX Beacon with DTIM
+ */
+struct ath_interrupt_stats {
+	u32 total;
+	u32 rxok;
+	u32 rxeol;
+	u32 rxorn;
+	u32 txok;
+	u32 txeol;
+	u32 txurn;
+	u32 mib;
+	u32 rxphyerr;
+	u32 rx_keycache_miss;
+	u32 swba;
+	u32 bmiss;
+	u32 bnr;
+	u32 cst;
+	u32 gtt;
+	u32 tim;
+	u32 cabend;
+	u32 dtimsync;
+	u32 dtim;
+};
+
+struct ath_stats {
+	struct ath_interrupt_stats istats;
+};
+
 struct ath9k_debug {
 	int debug_mask;
 	struct dentry *debugfs_root;
 	struct dentry *debugfs_phy;
 	struct dentry *debugfs_dma;
+	struct dentry *debugfs_interrupt;
+	struct ath_stats stats;
 };
 
 void DPRINTF(struct ath_softc *sc, int dbg_mask, const char *fmt, ...);
 int ath9k_init_debug(struct ath_softc *sc);
 void ath9k_exit_debug(struct ath_softc *sc);
+void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status);
 
 #else
 
@@ -115,6 +165,11 @@ static inline void ath9k_exit_debug(struct ath_softc *sc)
 {
 }
 
+static inline void ath_debug_stat_interrupt(struct ath_softc *sc,
+					    enum ath9k_int status)
+{
+}
+
 #endif /* CONFIG_ATH9K_DEBUG */
 
 struct ath_config {
-- 
cgit v1.2.3-55-g7522