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authorJohannes Berg <johannes.berg@intel.com>2012-09-11 14:34:12 +0200
committerJohannes Berg <johannes.berg@intel.com>2012-10-17 11:02:09 +0200
commit04ecd2578e712c301fa1369d2a8f298a2b4b146a (patch)
tree81fc8135db27831f4456b61c3aeb5d332848b449 /net/mac80211/cfg.c
parent55de908ab292c03f1eb280f51170ddb9c6b57e31 (diff)
mac80211: track needed RX chains for channel contexts
On each channel that the device is operating on, it may need to listen using one or more chains depending on the SMPS settings of the interfaces using it. The previous channel context changes completely removed this ability (before, it was available as the SMPS mode). Add per-context tracking of the required static and dynamic RX chains and notify the driver on changes. To achieve this, track the chains and SMPS mode used on each virtual interface and update the channel context whenever this changes. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/cfg.c')
-rw-r--r--net/mac80211/cfg.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 09c90627fd1..03216b0408c 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -884,6 +884,10 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
if (old)
return -EALREADY;
+ /* TODO: make hostapd tell us what it wants */
+ sdata->smps_mode = IEEE80211_SMPS_OFF;
+ sdata->needed_rx_chains = sdata->local->rx_chains;
+
err = ieee80211_vif_use_channel(sdata, params->channel,
params->channel_type,
IEEE80211_CHANCTX_SHARED);
@@ -1673,6 +1677,10 @@ static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
if (err)
return err;
+ /* can mesh use other SMPS modes? */
+ sdata->smps_mode = IEEE80211_SMPS_OFF;
+ sdata->needed_rx_chains = sdata->local->rx_chains;
+
err = ieee80211_vif_use_channel(sdata, setup->channel,
setup->channel_type,
IEEE80211_CHANCTX_SHARED);
@@ -2052,13 +2060,12 @@ int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
/*
* If not associated, or current association is not an HT
- * association, there's no need to send an action frame.
+ * association, there's no need to do anything, just store
+ * the new value until we associate.
*/
if (!sdata->u.mgd.associated ||
- sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
- ieee80211_recalc_smps(sdata->local);
+ sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT)
return 0;
- }
ap = sdata->u.mgd.associated->bssid;