34 lines
881 B
Diff
34 lines
881 B
Diff
From: Felix Fietkau <nbd@openwrt.org>
|
|
Date: Tue, 2 Jun 2015 10:35:46 +0200
|
|
Subject: [PATCH] ath9k: fix DMA stop sequence for AR9003+
|
|
|
|
AR93xx and newer needs to stop rx before tx to avoid getting the DMA
|
|
engine or MAC into a stuck state.
|
|
This should reduce/fix the occurence of "Failed to stop Tx DMA" logspam.
|
|
|
|
Cc: stable@vger.kernel.org
|
|
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
|
|
---
|
|
|
|
--- a/drivers/net/wireless/ath/ath9k/main.c
|
|
+++ b/drivers/net/wireless/ath/ath9k/main.c
|
|
@@ -216,11 +216,13 @@ static bool ath_prepare_reset(struct ath
|
|
ath_stop_ani(sc);
|
|
ath9k_hw_disable_interrupts(ah);
|
|
|
|
- if (!ath_drain_all_txq(sc))
|
|
- ret = false;
|
|
-
|
|
- if (!ath_stoprecv(sc))
|
|
- ret = false;
|
|
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
|
|
+ ret &= ath_stoprecv(sc);
|
|
+ ret &= ath_drain_all_txq(sc);
|
|
+ } else {
|
|
+ ret &= ath_drain_all_txq(sc);
|
|
+ ret &= ath_stoprecv(sc);
|
|
+ }
|
|
|
|
return ret;
|
|
}
|