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authorSenthil Balasubramanian <senthilkumar@atheros.com>2008-12-08 19:43:50 +0530
committerJohn W. Linville <linville@tuxdriver.com>2008-12-12 13:48:30 -0500
commit8aa15e1506bb0b6b643be12baf1f2d4d2f115931 (patch)
treee8ca7dbdee6b93dea74f51abfab9740b2f48eb98 /drivers/net/wireless/ath9k
parent2df1bff4c5cd0b28e06e4defc3f5d90618db8d53 (diff)
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ath9k: avoid rx frames with corrupted descriptor.
Setting RX_ABORT/RX_DIS after MAC reset and clearing RX_ABORT/RX_DIS after enbling RXE/RXDP to avoid rx frames with corrupted descriptor status. Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath9k')
-rw-r--r--drivers/net/wireless/ath9k/hw.c8
-rw-r--r--drivers/net/wireless/ath9k/mac.c3
2 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath9k/hw.c b/drivers/net/wireless/ath9k/hw.c
index 58f94c3f5e9..34474edefc9 100644
--- a/drivers/net/wireless/ath9k/hw.c
+++ b/drivers/net/wireless/ath9k/hw.c
@@ -1212,6 +1212,14 @@ struct ath_hal *ath9k_hw_attach(u16 devid, struct ath_softc *sc,
static void ath9k_hw_override_ini(struct ath_hal *ah,
struct ath9k_channel *chan)
{
+ /*
+ * Set the RX_ABORT and RX_DIS and clear if off only after
+ * RXE is set for MAC. This prevents frames with corrupted
+ * descriptor status.
+ */
+ REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
+
+
if (!AR_SREV_5416_V20_OR_LATER(ah) ||
AR_SREV_9280_10_OR_LATER(ah))
return;
diff --git a/drivers/net/wireless/ath9k/mac.c b/drivers/net/wireless/ath9k/mac.c
index 5254ea49f8a..af32d091dc3 100644
--- a/drivers/net/wireless/ath9k/mac.c
+++ b/drivers/net/wireless/ath9k/mac.c
@@ -916,12 +916,11 @@ void ath9k_hw_rxena(struct ath_hal *ah)
void ath9k_hw_startpcureceive(struct ath_hal *ah)
{
- REG_CLR_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
-
ath9k_enable_mib_counters(ah);
ath9k_ani_reset(ah);
+ REG_CLR_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
}
void ath9k_hw_stoppcurecv(struct ath_hal *ah)