Merge git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
authorJohn W. Linville <linville@tuxdriver.com>
Wed, 6 Jan 2010 22:22:54 +0000 (17:22 -0500)
committerJohn W. Linville <linville@tuxdriver.com>
Wed, 6 Jan 2010 22:26:13 +0000 (17:26 -0500)
Conflicts:
net/mac80211/scan.c
net/mac80211/wme.c

1  2 
net/mac80211/iface.c
net/mac80211/mlme.c
net/mac80211/offchannel.c

index c20ddddc3f2bf6852f0c5bd1167be3f24ab067ba,ff762ed34f1e9f1c4e42d4ca364d955d06f6b4e9..264a6c975f8b7650ce9f90293f047b072c83b5b1
@@@ -357,13 -345,8 +357,13 @@@ static int ieee80211_stop(struct net_de
        /*
         * Stop TX on this interface first.
         */
-       netif_stop_queue(dev);
+       netif_tx_stop_all_queues(dev);
  
 +      /*
 +       * Purge work for this interface.
 +       */
 +      ieee80211_work_purge(sdata);
 +
        /*
         * Now delete all active aggregation sessions.
         */
index 72920ee07885cd7ca14a9744049885b355c57d73,3e1eab963b8e55a73c17c566bf909e0eb6e21c89..97bcf2278bdb4b9c5d15d99e7d8985f3afa529ae
@@@ -720,10 -940,9 +720,10 @@@ static void ieee80211_set_associated(st
  
        mutex_lock(&local->iflist_mtx);
        ieee80211_recalc_ps(local, -1);
 +      ieee80211_recalc_smps(local, sdata);
        mutex_unlock(&local->iflist_mtx);
  
-       netif_start_queue(sdata->dev);
+       netif_tx_start_all_queues(sdata->dev);
        netif_carrier_on(sdata->dev);
  }
  
index a7bbfc40a648b623416f5ed30f2b3d80e54ac635,0000000000000000000000000000000000000000..1facfeb1f79bea4dd21fe75697c238494e755fbe
mode 100644,000000..100644
--- /dev/null
@@@ -1,168 -1,0 +1,168 @@@
-                       netif_stop_queue(sdata->dev);
 +/*
 + * Off-channel operation helpers
 + *
 + * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
 + * Copyright 2004, Instant802 Networks, Inc.
 + * Copyright 2005, Devicescape Software, Inc.
 + * Copyright 2006-2007        Jiri Benc <jbenc@suse.cz>
 + * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
 + * Copyright 2009     Johannes Berg <johannes@sipsolutions.net>
 + *
 + * This program is free software; you can redistribute it and/or modify
 + * it under the terms of the GNU General Public License version 2 as
 + * published by the Free Software Foundation.
 + */
 +#include <net/mac80211.h>
 +#include "ieee80211_i.h"
 +
 +/*
 + * inform AP that we will go to sleep so that it will buffer the frames
 + * while we scan
 + */
 +static void ieee80211_offchannel_ps_enable(struct ieee80211_sub_if_data *sdata)
 +{
 +      struct ieee80211_local *local = sdata->local;
 +
 +      local->offchannel_ps_enabled = false;
 +
 +      /* FIXME: what to do when local->pspolling is true? */
 +
 +      del_timer_sync(&local->dynamic_ps_timer);
 +      cancel_work_sync(&local->dynamic_ps_enable_work);
 +
 +      if (local->hw.conf.flags & IEEE80211_CONF_PS) {
 +              local->offchannel_ps_enabled = true;
 +              local->hw.conf.flags &= ~IEEE80211_CONF_PS;
 +              ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
 +      }
 +
 +      if (!(local->offchannel_ps_enabled) ||
 +          !(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK))
 +              /*
 +               * If power save was enabled, no need to send a nullfunc
 +               * frame because AP knows that we are sleeping. But if the
 +               * hardware is creating the nullfunc frame for power save
 +               * status (ie. IEEE80211_HW_PS_NULLFUNC_STACK is not
 +               * enabled) and power save was enabled, the firmware just
 +               * sent a null frame with power save disabled. So we need
 +               * to send a new nullfunc frame to inform the AP that we
 +               * are again sleeping.
 +               */
 +              ieee80211_send_nullfunc(local, sdata, 1);
 +}
 +
 +/* inform AP that we are awake again, unless power save is enabled */
 +static void ieee80211_offchannel_ps_disable(struct ieee80211_sub_if_data *sdata)
 +{
 +      struct ieee80211_local *local = sdata->local;
 +
 +      if (!local->ps_sdata)
 +              ieee80211_send_nullfunc(local, sdata, 0);
 +      else if (local->offchannel_ps_enabled) {
 +              /*
 +               * In !IEEE80211_HW_PS_NULLFUNC_STACK case the hardware
 +               * will send a nullfunc frame with the powersave bit set
 +               * even though the AP already knows that we are sleeping.
 +               * This could be avoided by sending a null frame with power
 +               * save bit disabled before enabling the power save, but
 +               * this doesn't gain anything.
 +               *
 +               * When IEEE80211_HW_PS_NULLFUNC_STACK is enabled, no need
 +               * to send a nullfunc frame because AP already knows that
 +               * we are sleeping, let's just enable power save mode in
 +               * hardware.
 +               */
 +              local->hw.conf.flags |= IEEE80211_CONF_PS;
 +              ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
 +      } else if (local->hw.conf.dynamic_ps_timeout > 0) {
 +              /*
 +               * If IEEE80211_CONF_PS was not set and the dynamic_ps_timer
 +               * had been running before leaving the operating channel,
 +               * restart the timer now and send a nullfunc frame to inform
 +               * the AP that we are awake.
 +               */
 +              ieee80211_send_nullfunc(local, sdata, 0);
 +              mod_timer(&local->dynamic_ps_timer, jiffies +
 +                        msecs_to_jiffies(local->hw.conf.dynamic_ps_timeout));
 +      }
 +}
 +
 +void ieee80211_offchannel_stop_beaconing(struct ieee80211_local *local)
 +{
 +      struct ieee80211_sub_if_data *sdata;
 +
 +      mutex_lock(&local->iflist_mtx);
 +      list_for_each_entry(sdata, &local->interfaces, list) {
 +              if (!ieee80211_sdata_running(sdata))
 +                      continue;
 +
 +              /* disable beaconing */
 +              if (sdata->vif.type == NL80211_IFTYPE_AP ||
 +                  sdata->vif.type == NL80211_IFTYPE_ADHOC ||
 +                  sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
 +                      ieee80211_bss_info_change_notify(
 +                              sdata, BSS_CHANGED_BEACON_ENABLED);
 +
 +              /*
 +               * only handle non-STA interfaces here, STA interfaces
 +               * are handled in ieee80211_offchannel_stop_station(),
 +               * e.g., from the background scan state machine.
 +               *
 +               * In addition, do not stop monitor interface to allow it to be
 +               * used from user space controlled off-channel operations.
 +               */
 +              if (sdata->vif.type != NL80211_IFTYPE_STATION &&
 +                  sdata->vif.type != NL80211_IFTYPE_MONITOR)
-                       netif_stop_queue(sdata->dev);
++                      netif_tx_stop_all_queues(sdata->dev);
 +      }
 +      mutex_unlock(&local->iflist_mtx);
 +}
 +
 +void ieee80211_offchannel_stop_station(struct ieee80211_local *local)
 +{
 +      struct ieee80211_sub_if_data *sdata;
 +
 +      /*
 +       * notify the AP about us leaving the channel and stop all STA interfaces
 +       */
 +      mutex_lock(&local->iflist_mtx);
 +      list_for_each_entry(sdata, &local->interfaces, list) {
 +              if (!ieee80211_sdata_running(sdata))
 +                      continue;
 +
 +              if (sdata->vif.type == NL80211_IFTYPE_STATION) {
-                       netif_wake_queue(sdata->dev);
++                      netif_tx_stop_all_queues(sdata->dev);
 +                      if (sdata->u.mgd.associated)
 +                              ieee80211_offchannel_ps_enable(sdata);
 +              }
 +      }
 +      mutex_unlock(&local->iflist_mtx);
 +}
 +
 +void ieee80211_offchannel_return(struct ieee80211_local *local,
 +                               bool enable_beaconing)
 +{
 +      struct ieee80211_sub_if_data *sdata;
 +
 +      mutex_lock(&local->iflist_mtx);
 +      list_for_each_entry(sdata, &local->interfaces, list) {
 +              if (!ieee80211_sdata_running(sdata))
 +                      continue;
 +
 +              /* Tell AP we're back */
 +              if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 +                      if (sdata->u.mgd.associated)
 +                              ieee80211_offchannel_ps_disable(sdata);
++                      netif_tx_wake_all_queues(sdata->dev);
 +              }
 +
 +              /* re-enable beaconing */
 +              if (enable_beaconing &&
 +                  (sdata->vif.type == NL80211_IFTYPE_AP ||
 +                   sdata->vif.type == NL80211_IFTYPE_ADHOC ||
 +                   sdata->vif.type == NL80211_IFTYPE_MESH_POINT))
 +                      ieee80211_bss_info_change_notify(
 +                              sdata, BSS_CHANGED_BEACON_ENABLED);
 +      }
 +      mutex_unlock(&local->iflist_mtx);
 +}