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authorFelix Fietkau <nbd@openwrt.org>2011-08-29 18:57:54 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-09-13 21:42:31 +0200
commit3459731a39894e5377283b3ccf2fede54e19aae1 (patch)
treeca1816f4eea7dfb4fa12d6207a08c6e072cd259c /drivers/net/wireless/ath
parentmwl8k: Set hardware flag IEEE80211_HW_AP_LINK_PS (diff)
downloadlinux-3459731a39894e5377283b3ccf2fede54e19aae1.tar.xz
linux-3459731a39894e5377283b3ccf2fede54e19aae1.zip
ath9k: fix checks for first subframe delimiter padding
The commit "ath9k_hw: Fix exceed transmission burst-time of 5GHz" added a padding of 60 delimiters on the first subframe to work around an issue on AR9380, but it lacked the checks to prevent it from being applied to pre-AR9380, enterprise AR9380 or AR9580+ Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath')
-rw-r--r--drivers/net/wireless/ath/ath9k/reg.h2
-rw-r--r--drivers/net/wireless/ath/ath9k/xmit.c3
2 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
index 17a272f4d8d6..5d34381c44c3 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -1132,7 +1132,7 @@ enum {
#define AR_INTR_PRIO_ASYNC_ENABLE (AR_SREV_9340(ah) ? 0x4094 : 0x40d4)
#define AR_ENT_OTP 0x40d8
#define AR_ENT_OTP_CHAIN2_DISABLE 0x00020000
-#define AR_ENT_OTP_MPSD 0x00800000
+#define AR_ENT_OTP_MIN_PKT_SIZE_DISABLE 0x00800000
#define AR_CH0_BB_DPLL1 0x16180
#define AR_CH0_BB_DPLL1_REFDIV 0xF8000000
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 68066c56e4e5..29bcc55a6f9e 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -709,7 +709,8 @@ static int ath_compute_num_delims(struct ath_softc *sc, struct ath_atx_tid *tid,
* Add delimiter when using RTS/CTS with aggregation
* and non enterprise AR9003 card
*/
- if (first_subfrm)
+ if (first_subfrm && !AR_SREV_9580_10_OR_LATER(sc->sc_ah) &&
+ (sc->sc_ah->ent_mode & AR_ENT_OTP_MIN_PKT_SIZE_DISABLE))
ndelim = max(ndelim, FIRST_DESC_NDELIMS);
/*