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authorLuis R. Rodriguez <lrodriguez@atheros.com>2010-04-15 17:39:31 -0400
committerJohn W. Linville <linville@tuxdriver.com>2010-04-16 15:43:46 -0400
commit79de23751a79a1270e45559296256ecb3dd35e12 (patch)
treef6bb6907e661eb4e131ae2b079b66eec4d14a682
parenta9616f417eb0e529023c44dac61420f3df39d8f7 (diff)
ath9k_hw: enable CRC check of descriptors for AR9003
Enable CRC check on the descriptor fetched from host on AR9003 upon reseting the TX queue. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/ath/ath9k/mac.c3
-rw-r--r--drivers/net/wireless/ath/ath9k/reg.h4
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index 05159584a54..44ea43a143d 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -569,6 +569,9 @@ bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
AR_D_MISC_POST_FR_BKOFF_DIS);
}
+ if (AR_SREV_9300_20_OR_LATER(ah))
+ REG_WRITE(ah, AR_Q_DESC_CRCCHK, AR_Q_DESC_CRCCHK_EN);
+
if (qi->tqi_qflags & TXQ_FLAG_TXOKINT_ENABLE)
ah->txok_interrupt_mask |= 1 << q;
else
diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
index ff8914049c5..d4371a43bda 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -478,6 +478,10 @@
#define AR_Q_RDYTIMESHDN 0x0a40
#define AR_Q_RDYTIMESHDN_M 0x000003FF
+/* MAC Descriptor CRC check */
+#define AR_Q_DESC_CRCCHK 0xa44
+/* Enable CRC check on the descriptor fetched from host */
+#define AR_Q_DESC_CRCCHK_EN 1
#define AR_NUM_DCU 10
#define AR_DCU_0 0x0001