ath9k: enable the baseband watchdog events for AR9003
This enables the baseband watchdog events for the AR9003
family on ath9k. Upon an a baseband watchdog interrupt we reset
the hardware, this should address corner case conditions where
normal operation can stall. Enable ATH_DBG_RESET to be able
to review details of the bb watchdog interrupt once it happens.
If you're curious how often this happens just grep the debugfs
interrupt file.
Cc: Sam Ng <sam.ng@atheros.com>
Cc: Paul Shaw <paul.shaw@atheros.com>
Cc: Don Breslin <don.breslin@atheros.com>
Cc: Cliff Holden <cliff.holden@atheros.com
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index abfa049..b98b2f2 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -520,6 +520,12 @@
!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)))
goto chip_reset;
+ if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
+ (status & ATH9K_INT_BB_WATCHDOG)) {
+ ar9003_hw_bb_watchdog_dbg_info(ah);
+ goto chip_reset;
+ }
+
if (status & ATH9K_INT_SWBA)
tasklet_schedule(&sc->bcon_tasklet);
@@ -1195,7 +1201,9 @@
ATH9K_INT_GLOBAL;
if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
- ah->imask |= ATH9K_INT_RXHP | ATH9K_INT_RXLP;
+ ah->imask |= ATH9K_INT_RXHP |
+ ATH9K_INT_RXLP |
+ ATH9K_INT_BB_WATCHDOG;
else
ah->imask |= ATH9K_INT_RX;