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ath9k: add extra checks to reduce the amount of unnecessary rx dma related logspam

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32709 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2012-07-14 17:48:49 +00:00
parent 8502617a6d
commit 062e1e3763
1 changed files with 15 additions and 0 deletions
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15
package/mac80211/patches/576-ath9k_rx_dma_stop_check.patch Normal file
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@ -0,0 +1,15 @@
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -718,6 +718,12 @@ bool ath9k_hw_stopdmarecv(struct ath_hw
udelay(AH_TIME_QUANTUM);
}
+ 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;
+ }
+
if (i == 0) {
ath_err(common,
"DMA failed to stop in %d ms AR_CR=0x%08x AR_DIAG_SW=0x%08x DMADBG_7=0x%08x\n",