diff options
| author | Rajkumar Manoharan <rmanohar@qca.qualcomm.com> | 2011-07-01 18:37:33 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-08-03 12:42:37 -0700 |
| commit | 296c6a42eef092fbb2a1739864d538e5bc037628 (patch) | |
| tree | c9e59165daa16fbbf10a3ed2b2f9eaa7da7d2656 | |
| parent | 4d41aa3de799ce980cd18efb4bade4a61563e42a (diff) | |
ath9k: Fix tx throughput drops for AR9003 chips with AES encryption
commit 4f6760b01bda625e9555e16d8e9ba8126a9c9498 upstream.
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.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | 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 88fa7fdffd05..4f2c8dfe4c1b 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -662,7 +662,8 @@ 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; /* |