ath9k: Add TSFOOR interrupt stats in debug info
This helped the developers to fix an issue of chip not entering network
sleep during idle state, previously this was only available as a debug
message
Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 34f191e..bad1a87 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -326,6 +326,8 @@
sc->debug.stats.istats.dtimsync++;
if (status & ATH9K_INT_DTIM)
sc->debug.stats.istats.dtim++;
+ if (status & ATH9K_INT_TSFOOR)
+ sc->debug.stats.istats.tsfoor++;
}
static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
@@ -380,8 +382,11 @@
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim);
len += snprintf(buf + len, sizeof(buf) - len,
+ "%8s: %10u\n", "TSFOOR", sc->debug.stats.istats.tsfoor);
+ len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
+
if (len > sizeof(buf))
len = sizeof(buf);
diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h
index 1f9f8ea..5488a32 100644
--- a/drivers/net/wireless/ath/ath9k/debug.h
+++ b/drivers/net/wireless/ath/ath9k/debug.h
@@ -54,6 +54,9 @@
* @dtimsync: DTIM sync lossage
* @dtim: RX Beacon with DTIM
* @bb_watchdog: Baseband watchdog
+ * @tsfoor: TSF out of range, indicates that the corrected TSF received
+ * from a beacon differs from the PCU's internal TSF by more than a
+ * (programmable) threshold
*/
struct ath_interrupt_stats {
u32 total;
@@ -78,6 +81,7 @@
u32 dtimsync;
u32 dtim;
u32 bb_watchdog;
+ u32 tsfoor;
};
/**