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authorLarry Finger <Larry.Finger@lwfinger.net>2007-07-02 22:36:38 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-07-10 22:16:25 -0700
commiteef6caf8a916f32f8d9b2a02d4fa7674736c00ac (patch)
treed9ecce23fc7d8b2c4c94905bc43f42dc77424822
parentd0410051164bbbc597e15f068b53c06a954ae0d4 (diff)
[MAC80211]: Set low initial rate in rc80211_simple
The initial rate for STA's using rc80211_simple is set to the last rate in the rate table. For situations for which the signal is weak, the rate may be too high for authentication and association. Although the rc80211_simple module will adjust the speed, the response may not be fast enough for a successful connection. This modification sets the initial rate to the lowest supported value. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/mac80211/rc80211_simple.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/net/mac80211/rc80211_simple.c b/net/mac80211/rc80211_simple.c
index 2048cfd1ca7..5ae7fc45466 100644
--- a/net/mac80211/rc80211_simple.c
+++ b/net/mac80211/rc80211_simple.c
@@ -283,14 +283,16 @@ static void rate_control_simple_rate_init(void *priv, void *priv_sta,
int i;
sta->txrate = 0;
mode = local->oper_hw_mode;
- /* TODO: what is a good starting rate for STA? About middle? Maybe not
- * the lowest or the highest rate.. Could consider using RSSI from
- * previous packets? Need to have IEEE 802.1X auth succeed immediately
- * after assoc.. */
+ /* TODO: This routine should consider using RSSI from previous packets
+ * as we need to have IEEE 802.1X auth succeed immediately after assoc..
+ * Until that method is implemented, we will use the lowest supported rate
+ * as a workaround, */
for (i = 0; i < mode->num_rates; i++) {
if ((sta->supp_rates & BIT(i)) &&
- (mode->rates[i].flags & IEEE80211_RATE_SUPPORTED))
+ (mode->rates[i].flags & IEEE80211_RATE_SUPPORTED)) {
sta->txrate = i;
+ break;
+ }
}
}