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authorFelix Fietkau <nbd@openwrt.org>2008-10-05 20:04:24 +0400
committerJohn W. Linville <linville@tuxdriver.com>2008-10-07 02:14:57 +0400
commit870abdf67170daa9f1022e55a35c469239fcc74c (patch)
tree5ca00db880d71149eea2cdaeb67ed20f5281071d /net/mac80211/tx.c
parent76708dee382a69b2f9d0e50f413f99fefb2dc509 (diff)
downloadlinux-870abdf67170daa9f1022e55a35c469239fcc74c.tar.xz
mac80211: add multi-rate retry support
This patch adjusts the rate control API to allow multi-rate retry if supported by the driver. The ieee80211_hw struct specifies how many alternate rate selections the driver supports. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/tx.c')
-rw-r--r--net/mac80211/tx.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index d7153bbcdb2b..1460537faf33 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -454,15 +454,16 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
if (unlikely(rsel.probe_idx >= 0)) {
info->flags |= IEEE80211_TX_CTL_RATE_CTRL_PROBE;
tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG;
- info->control.alt_retry_rate_idx = tx->rate_idx;
+ info->control.retries[0].rate_idx = tx->rate_idx;
+ info->control.retries[0].limit = tx->local->hw.max_altrate_tries;
tx->rate_idx = rsel.probe_idx;
- } else
- info->control.alt_retry_rate_idx = -1;
+ } else if (info->control.retries[0].limit == 0)
+ info->control.retries[0].rate_idx = -1;
if (unlikely(tx->rate_idx < 0))
return TX_DROP;
} else
- info->control.alt_retry_rate_idx = -1;
+ info->control.retries[0].rate_idx = -1;
if (tx->sdata->bss_conf.use_cts_prot &&
(tx->flags & IEEE80211_TX_FRAGMENTED) && (rsel.nonerp_idx >= 0)) {
@@ -521,7 +522,7 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
* frames.
* TODO: The last fragment could still use multiple retry
* rates. */
- info->control.alt_retry_rate_idx = -1;
+ info->control.retries[0].rate_idx = -1;
}
/* Use CTS protection for unicast frames sent using extended rates if
@@ -551,7 +552,7 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
int idx;
/* Do not use multiple retry rates when using RTS/CTS */
- info->control.alt_retry_rate_idx = -1;
+ info->control.retries[0].rate_idx = -1;
/* Use min(data rate, max base rate) as CTS/RTS rate */
rate = &sband->bitrates[tx->rate_idx];