You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
42 lines
1.2 KiB
42 lines
1.2 KiB
From: "kernel-team@fedoraproject.org" <kernel-team@fedoraproject.org>
|
|
Date: Wed, 6 Feb 2013 09:57:47 -0500
|
|
Subject: [PATCH] ath9k: rx dma stop check
|
|
|
|
---
|
|
drivers/net/wireless/ath/ath9k/mac.c | 12 +++++++++++-
|
|
1 file changed, 11 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
|
|
index 275205ab5f15..bb842623bdf6 100644
|
|
--- a/drivers/net/wireless/ath/ath9k/mac.c
|
|
+++ b/drivers/net/wireless/ath/ath9k/mac.c
|
|
@@ -700,7 +700,7 @@ bool ath9k_hw_stopdmarecv(struct ath_hw *ah, bool *reset)
|
|
{
|
|
#define AH_RX_STOP_DMA_TIMEOUT 10000 /* usec */
|
|
struct ath_common *common = ath9k_hw_common(ah);
|
|
- u32 mac_status, last_mac_status = 0;
|
|
+ u32 mac_status = 0, last_mac_status = 0;
|
|
int i;
|
|
|
|
/* Enable access to the DMA observation bus */
|
|
@@ -730,6 +730,16 @@ bool ath9k_hw_stopdmarecv(struct ath_hw *ah, bool *reset)
|
|
}
|
|
|
|
if (i == 0) {
|
|
+ if (!AR_SREV_9300_20_OR_LATER(ah) &&
|
|
+ (mac_status & 0x700) == 0) {
|
|
+ /*
|
|
+ * DMA is idle but the MAC is still stuck
|
|
+ * processing events
|
|
+ */
|
|
+ *reset = true;
|
|
+ return true;
|
|
+ }
|
|
+
|
|
ath_err(common,
|
|
"DMA failed to stop in %d ms AR_CR=0x%08x AR_DIAG_SW=0x%08x DMADBG_7=0x%08x\n",
|
|
AH_RX_STOP_DMA_TIMEOUT / 1000,
|
|
--
|
|
1.9.3
|
|
|