commit: 4f6760b01bda625e9555e16d8e9ba8126a9c9498
From: Rajkumar Manoharan <rmano...@qca.qualcomm.com>
Date: Fri, 1 Jul 2011 18:37:33 +0530
Subject: [PATCH] ath9k: Fix tx throughput drops for AR9003 chips with AES
encryption
While sending aggregated frames in AES, the AR5416 chips
required additional padding b/w subframes. This workaround
is not needed for edma (AR9003 family) chips. With this patch
~4Mbps thoughput improvement was observed in clear environment.
Cc: sta...@kernel.org
Signed-off-by: Rajkumar Manoharan <rmano...@qca.qualcomm.com>
Signed-off-by: John W. Linville <linvi...@tuxdriver.com>
---
drivers/net/wireless/ath/ath9k/xmit.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c
b/drivers/net/wireless/ath/ath9k/xmit.c
index 3779b89..33443bc 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -671,7 +671,8 @@ static int ath_compute_num_delims(struct ath_softc *sc,
struct ath_atx_tid *tid,
* TODO - this could be improved to be dependent on the rate.
* The hardware can keep up at lower rates, but not higher rates
*/
- if (fi->keyix != ATH9K_TXKEYIX_INVALID)
+ if ((fi->keyix != ATH9K_TXKEYIX_INVALID) &&
+ !(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA))
ndelim += ATH_AGGR_ENCRYPTDELIM;
/*
_______________________________________________
stable mailing list
stable@linux.kernel.org
http://linux.kernel.org/mailman/listinfo/stable
