1 files changed, 53 insertions, 31 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 12a52efcd0d1..3b83a80e3fe0 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -93,12 +93,9 @@ struct ieee80211_ht_bss_info {
  * enum ieee80211_max_queues - maximum number of queues
  *
  * @IEEE80211_MAX_QUEUES: Maximum number of regular device queues.
- * @IEEE80211_MAX_AMPDU_QUEUES: Maximum number of queues usable
- *      for A-MPDU operation.
  */
 enum ieee80211_max_queues {
-        IEEE80211_MAX_QUEUES =          16,
-        IEEE80211_MAX_AMPDU_QUEUES =    16,
+        IEEE80211_MAX_QUEUES =          4,
 };
 
 /**
@@ -245,6 +242,12 @@ struct ieee80211_bss_conf {
  * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: internal to mac80211, can be
  *      set by rate control algorithms to indicate probe rate, will
  *      be cleared for fragmented frames (except on the last fragment)
+ * @IEEE80211_TX_INTFL_RCALGO: mac80211 internal flag, do not test or
+ *      set this flag in the driver; indicates that the rate control
+ *      algorithm was used and should be notified of TX status
+ * @IEEE80211_TX_INTFL_NEED_TXPROCESSING: completely internal to mac80211,
+ *      used to indicate that a pending frame requires TX processing before
+ *      it can be sent out.
  */
 enum mac80211_tx_control_flags {
         IEEE80211_TX_CTL_REQ_TX_STATUS          = BIT(0),
@@ -260,6 +263,8 @@ enum mac80211_tx_control_flags {
         IEEE80211_TX_STAT_AMPDU                 = BIT(10),
         IEEE80211_TX_STAT_AMPDU_NO_BACK         = BIT(11),
         IEEE80211_TX_CTL_RATE_CTRL_PROBE        = BIT(12),
+        IEEE80211_TX_INTFL_RCALGO               = BIT(13),
+        IEEE80211_TX_INTFL_NEED_TXPROCESSING    = BIT(14),
 };
 
 /**
@@ -520,12 +525,6 @@ enum ieee80211_conf_flags {
         IEEE80211_CONF_PS               = (1<<1),
 };
 
-/* XXX: remove all this once drivers stop trying to use it */
-static inline int __deprecated __IEEE80211_CONF_SHORT_SLOT_TIME(void)
-{
-        return 0;
-}
-#define IEEE80211_CONF_SHORT_SLOT_TIME (__IEEE80211_CONF_SHORT_SLOT_TIME())
 
 /**
  * enum ieee80211_conf_changed - denotes which configuration changed
@@ -888,6 +887,10 @@ enum ieee80211_tkip_key_type {
  *
  * @IEEE80211_HW_MFP_CAPABLE:
  *      Hardware supports management frame protection (MFP, IEEE 802.11w).
+ *
+ * @IEEE80211_HW_BEACON_FILTER:
+ *      Hardware supports dropping of irrelevant beacon frames to
+ *      avoid waking up cpu.
  */
 enum ieee80211_hw_flags {
         IEEE80211_HW_RX_INCLUDES_FCS                    = 1<<1,
@@ -903,6 +906,7 @@ enum ieee80211_hw_flags {
         IEEE80211_HW_PS_NULLFUNC_STACK                  = 1<<11,
         IEEE80211_HW_SUPPORTS_DYNAMIC_PS                = 1<<12,
         IEEE80211_HW_MFP_CAPABLE                        = 1<<13,
+        IEEE80211_HW_BEACON_FILTER                      = 1<<14,
 };
 
 /**
@@ -945,12 +949,6 @@ enum ieee80211_hw_flags {
  *      data packets. WMM/QoS requires at least four, these
  *      queues need to have configurable access parameters.
  *
- * @ampdu_queues: number of available hardware transmit queues
- *      for A-MPDU packets, these have no access parameters
- *      because they're used only for A-MPDU frames. Note that
- *      mac80211 will not currently use any of the regular queues
- *      for aggregation.
- *
  * @rate_control_algorithm: rate control algorithm for this hardware.
  *      If unset (NULL), the default algorithm will be used. Must be
  *      set before calling ieee80211_register_hw().
@@ -975,7 +973,6 @@ struct ieee80211_hw {
         int vif_data_size;
         int sta_data_size;
         u16 queues;
-        u16 ampdu_queues;
         u16 max_listen_interval;
         s8 max_signal;
         u8 max_rates;
@@ -1017,11 +1014,6 @@ static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, u8 *addr)
         memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN);
 }
 
-static inline int ieee80211_num_regular_queues(struct ieee80211_hw *hw)
-{
-        return hw->queues;
-}
-
 static inline struct ieee80211_rate *
 ieee80211_get_tx_rate(const struct ieee80211_hw *hw,
                       const struct ieee80211_tx_info *c)
@@ -1132,6 +1124,24 @@ ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw,
  */
 
 /**
+ * DOC: Beacon filter support
+ *
+ * Some hardware have beacon filter support to reduce host cpu wakeups
+ * which will reduce system power consumption. It usuallly works so that
+ * the firmware creates a checksum of the beacon but omits all constantly
+ * changing elements (TSF, TIM etc). Whenever the checksum changes the
+ * beacon is forwarded to the host, otherwise it will be just dropped. That
+ * way the host will only receive beacons where some relevant information
+ * (for example ERP protection or WMM settings) have changed.
+ *
+ * Beacon filter support is informed with %IEEE80211_HW_BEACON_FILTER flag.
+ * The driver needs to enable beacon filter support whenever power save is
+ * enabled, that is %IEEE80211_CONF_PS is set. When power save is enabled,
+ * the stack will not check for beacon miss at all and the driver needs to
+ * notify about complete loss of beacons with ieee80211_beacon_loss().
+ */
+
+/**
  * DOC: Frame filtering
  *
  * mac80211 requires to see many management frames for proper
@@ -1220,14 +1230,14 @@ enum ieee80211_filter_flags {
  * @IEEE80211_AMPDU_RX_STOP: stop Rx aggregation
  * @IEEE80211_AMPDU_TX_START: start Tx aggregation
  * @IEEE80211_AMPDU_TX_STOP: stop Tx aggregation
- * @IEEE80211_AMPDU_TX_RESUME: resume TX aggregation
+ * @IEEE80211_AMPDU_TX_OPERATIONAL: TX aggregation has become operational
  */
 enum ieee80211_ampdu_mlme_action {
         IEEE80211_AMPDU_RX_START,
         IEEE80211_AMPDU_RX_STOP,
         IEEE80211_AMPDU_TX_START,
         IEEE80211_AMPDU_TX_STOP,
-        IEEE80211_AMPDU_TX_RESUME,
+        IEEE80211_AMPDU_TX_OPERATIONAL,
 };
 
 /**
@@ -1318,11 +1328,13 @@ enum ieee80211_ampdu_mlme_action {
  *
  * @hw_scan: Ask the hardware to service the scan request, no need to start
  *      the scan state machine in stack. The scan must honour the channel
- *      configuration done by the regulatory agent in the wiphy's registered
- *      bands. When the scan finishes, ieee80211_scan_completed() must be
- *      called; note that it also must be called when the scan cannot finish
- *      because the hardware is turned off! Anything else is a bug!
- *      Returns a negative error code which will be seen in userspace.
+ *      configuration done by the regulatory agent in the wiphy's
+ *      registered bands. The hardware (or the driver) needs to make sure
+ *      that power save is disabled. When the scan finishes,
+ *      ieee80211_scan_completed() must be called; note that it also must
+ *      be called when the scan cannot finish because the hardware is
+ *      turned off! Anything else is a bug! Returns a negative error code
+ *      which will be seen in userspace.
  *
  * @sw_scan_start: Notifier function that is called just before a software scan
  *      is started. Can be NULL, if the driver doesn't need this notification.
@@ -1350,8 +1362,8 @@ enum ieee80211_ampdu_mlme_action {
  * @get_tx_stats: Get statistics of the current TX queue status. This is used
  *      to get number of currently queued packets (queue length), maximum queue
  *      size (limit), and total number of packets sent using each TX queue
- *      (count). The 'stats' pointer points to an array that has hw->queues +
- *      hw->ampdu_queues items.
+ *      (count). The 'stats' pointer points to an array that has hw->queues
+ *      items.
  *
  * @get_tsf: Get the current TSF timer value from firmware/hardware. Currently,
  *      this is only used for IBSS mode BSSID merging and debugging. Is not a
@@ -1979,6 +1991,16 @@ void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, const u8 *ra,
 struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_hw *hw,
                                          const u8 *addr);
 
+/**
+ * ieee80211_beacon_loss - inform hardware does not receive beacons
+ *
+ * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
+ *
+ * When beacon filtering is enabled with IEEE80211_HW_BEACON_FILTERING and
+ * IEEE80211_CONF_PS is set, the driver needs to inform whenever the
+ * hardware is not receiving beacons with this function.
+ */
+void ieee80211_beacon_loss(struct ieee80211_vif *vif);
 
 /* Rate control API */