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authorJohannes Berg <johannes.berg@intel.com>2011-01-18 13:51:05 +0100
committerJohn W. Linville <linville@tuxdriver.com>2011-01-19 17:36:11 +0100
commit0b01f030d38e00650e2db42da083d8647aad40a5 (patch)
tree14519750d9b6cdb046624dd87d5323a4826821e2 /net/mac80211/agg-rx.c
parentmac80211: don't return beacons when mesh is disabled (diff)
downloadlinux-0b01f030d38e00650e2db42da083d8647aad40a5.tar.xz
linux-0b01f030d38e00650e2db42da083d8647aad40a5.zip
mac80211: track receiver's aggregation reorder buffer size
The aggregation code currently doesn't implement the buffer size negotiation. It will always request a max buffer size (which is fine, if a little pointless, as the mac80211 code doesn't know and might just use 0 instead), but if the peer requests a smaller size it isn't possible to honour this request. In order to fix this, look at the buffer size in the addBA response frame, keep track of it and pass it to the driver in the ampdu_action callback when called with the IEEE80211_AMPDU_TX_OPERATIONAL action. That way the driver can limit the number of subframes in aggregates appropriately. Note that this doesn't fix any drivers apart from the addition of the new argument -- they all need to be updated separately to use this variable! Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/agg-rx.c')
-rw-r--r--net/mac80211/agg-rx.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 002db5e86eb6..1f51f4162426 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -76,7 +76,7 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
#endif /* CONFIG_MAC80211_HT_DEBUG */
if (drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_STOP,
- &sta->sta, tid, NULL))
+ &sta->sta, tid, NULL, 0))
printk(KERN_DEBUG "HW problem - can not stop rx "
"aggregation for tid %d\n", tid);
@@ -297,7 +297,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local,
}
ret = drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_START,
- &sta->sta, tid, &start_seq_num);
+ &sta->sta, tid, &start_seq_num, 0);
#ifdef CONFIG_MAC80211_HT_DEBUG
printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret);
#endif /* CONFIG_MAC80211_HT_DEBUG */