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ath9k_hw: fix A-MPDU key search issues on AR9003

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Under load, a large number of frames can produce decryption errors, even when
no key cache update is being done. Performing a key search for every single
frame in an A-MPDU improves reliability.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2010-11-22 15:39:39 +01:00 committed by John W. Linville
parent 7253965a1c
commit 02d2ebb2a0
2 changed files with 5 additions and 0 deletions
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4
drivers/net/wireless/ath/ath9k/hw.c
View File

@ -1817,6 +1817,10 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
ah->misc_mode |= AR_PCU_MIC_NEW_LOC_ENA;
/* enable key search for every frame in an aggregate */
if (AR_SREV_9300_20_OR_LATER(ah))
ah->misc_mode |= AR_PCU_ALWAYS_PERFORM_KEYSEARCH;
pCap->low_2ghz_chan = 2312;
pCap->high_2ghz_chan = 2732;

1
drivers/net/wireless/ath/ath9k/reg.h
View File

@ -1568,6 +1568,7 @@ enum {
#define AR_PCU_TBTT_PROTECT 0x00200000
#define AR_PCU_CLEAR_VMF 0x01000000
#define AR_PCU_CLEAR_BA_VALID 0x04000000
#define AR_PCU_ALWAYS_PERFORM_KEYSEARCH 0x10000000
#define AR_PCU_BT_ANT_PREVENT_RX 0x00100000
#define AR_PCU_BT_ANT_PREVENT_RX_S 20