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authorLuis R. Rodriguez <lrodriguez@atheros.com>2010-04-15 17:39:39 -0400
committerJohn W. Linville <linville@tuxdriver.com>2010-04-16 15:43:48 -0400
commitb0a3344834fcaf30e472ccc661c8842281453402 (patch)
tree22720f13c77315e19fc9db456b05371234d2f100 /drivers/net/wireless/ath/ath9k/rc.c
parentce01805a226328228a885b4a6e4b632b4e73f8ee (diff)
ath9k: add LDPC support
LDPC is enabled by the rate control if the its determined that the target peer supports LDPC. We would have already intersected the HT capabilities so if our peer supports LDPC so do we. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/rc.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/rc.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c
index 3c4b5d2d9e1..f10bd06dc21 100644
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -689,6 +689,15 @@ static void ath_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
rate_table = sc->cur_rate_table;
rix = ath_rc_get_highest_rix(sc, ath_rc_priv, rate_table, &is_probe);
+ /*
+ * If we're in HT mode and both us and our peer supports LDPC.
+ * We don't need to check our own device's capabilities as our own
+ * ht capabilities would have already been intersected with our peer's.
+ */
+ if (conf_is_ht(&sc->hw->conf) &&
+ (sta->ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING))
+ tx_info->flags |= IEEE80211_TX_CTL_LDPC;
+
if (is_probe) {
/* set one try for probe rates. For the
* probes don't enable rts */