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Commit 02d2ebb2 authored by Felix Fietkau's avatar Felix Fietkau Committed by John W. Linville
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ath9k_hw: fix A-MPDU key search issues on AR9003 



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: default avatarFelix Fietkau <nbd@openwrt.org>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 7253965a

drivers/net/wireless/ath/ath9k/hw.c

+4 −0
Original line number Diff line number Diff line
@@ -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;

drivers/net/wireless/ath/ath9k/reg.h

+1 −0
Original line number Diff line number Diff line
@@ -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