1 files changed, 41 insertions, 71 deletions

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 3f3cd50fff16..f834a005e1c5 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -30,6 +30,7 @@
 #include <net/mac80211.h>
 #include "key.h"
 #include "sta_info.h"
+#include "debug.h"
 
 struct ieee80211_local;
 
@@ -55,11 +56,14 @@ struct ieee80211_local;
 #define TU_TO_JIFFIES(x)        (usecs_to_jiffies((x) * 1024))
 #define TU_TO_EXP_TIME(x)       (jiffies + TU_TO_JIFFIES(x))
 
+/*
+ * Some APs experience problems when working with U-APSD. Decrease the
+ * probability of that happening by using legacy mode for all ACs but VO.
+ * The AP that caused us trouble was a Cisco 4410N. It ignores our
+ * setting, and always treats non-VO ACs as legacy.
+ */
 #define IEEE80211_DEFAULT_UAPSD_QUEUES \
-        (IEEE80211_WMM_IE_STA_QOSINFO_AC_BK |   \
-         IEEE80211_WMM_IE_STA_QOSINFO_AC_BE |   \
-         IEEE80211_WMM_IE_STA_QOSINFO_AC_VI |   \
-         IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
+        IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
 
 #define IEEE80211_DEFAULT_MAX_SP_LEN            \
         IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
@@ -317,55 +321,30 @@ struct mesh_preq_queue {
         u8 flags;
 };
 
-enum ieee80211_work_type {
-        IEEE80211_WORK_ABORT,
-        IEEE80211_WORK_REMAIN_ON_CHANNEL,
-        IEEE80211_WORK_OFFCHANNEL_TX,
-};
-
-/**
- * enum work_done_result - indicates what to do after work was done
- *
- * @WORK_DONE_DESTROY: This work item is no longer needed, destroy.
- * @WORK_DONE_REQUEUE: This work item was reset to be reused, and
- *      should be requeued.
- */
-enum work_done_result {
-        WORK_DONE_DESTROY,
-        WORK_DONE_REQUEUE,
-};
+#if HZ/100 == 0
+#define IEEE80211_ROC_MIN_LEFT  1
+#else
+#define IEEE80211_ROC_MIN_LEFT  (HZ/100)
+#endif
 
-struct ieee80211_work {
+struct ieee80211_roc_work {
         struct list_head list;
+        struct list_head dependents;
 
-        struct rcu_head rcu_head;
+        struct delayed_work work;
 
         struct ieee80211_sub_if_data *sdata;
 
-        enum work_done_result (*done)(struct ieee80211_work *wk,
-                                      struct sk_buff *skb);
-
         struct ieee80211_channel *chan;
         enum nl80211_channel_type chan_type;
 
-        unsigned long timeout;
-        enum ieee80211_work_type type;
+        bool started, abort, hw_begun, notified;
 
-        bool started;
+        unsigned long hw_start_time;
 
-        union {
-                struct {
-                        u32 duration;
-                } remain;
-                struct {
-                        struct sk_buff *frame;
-                        u32 wait;
-                        bool status;
-                } offchan_tx;
-        };
-
-        size_t data_len;
-        u8 data[];
+        u32 duration, req_duration;
+        struct sk_buff *frame;
+        u64 mgmt_tx_cookie;
 };
 
 /* flags used in struct ieee80211_if_managed.flags */
@@ -399,7 +378,6 @@ struct ieee80211_mgd_auth_data {
 struct ieee80211_mgd_assoc_data {
         struct cfg80211_bss *bss;
         const u8 *supp_rates;
-        const u8 *ht_operation_ie;
 
         unsigned long timeout;
         int tries;
@@ -414,6 +392,8 @@ struct ieee80211_mgd_assoc_data {
         bool sent_assoc;
         bool synced;
 
+        u8 ap_ht_param;
+
         size_t ie_len;
         u8 ie[];
 };
@@ -532,6 +512,7 @@ struct ieee80211_if_ibss {
         bool privacy;
 
         bool control_port;
+        unsigned int auth_frame_registrations;
 
         u8 bssid[ETH_ALEN] __aligned(2);
         u8 ssid[IEEE80211_MAX_SSID_LEN];
@@ -701,6 +682,9 @@ struct ieee80211_sub_if_data {
         /* TID bitmap for NoAck policy */
         u16 noack_map;
 
+        /* bit field of ACM bits (BIT(802.1D tag)) */
+        u8 wmm_acm;
+
         struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
         struct ieee80211_key __rcu *default_unicast_key;
         struct ieee80211_key __rcu *default_multicast_key;
@@ -847,13 +831,6 @@ struct ieee80211_local {
         const struct ieee80211_ops *ops;
 
         /*
-         * work stuff, potentially off-channel (in the future)
-         */
-        struct list_head work_list;
-        struct timer_list work_timer;
-        struct work_struct work_work;
-
-        /*
          * private workqueue to mac80211. mac80211 makes this accessible
          * via ieee80211_queue_work()
          */
@@ -912,6 +889,9 @@ struct ieee80211_local {
         /* device is started */
         bool started;
 
+        /* device is during a HW reconfig */
+        bool in_reconfig;
+
         /* wowlan is enabled -- don't reconfig on resume */
         bool wowlan;
 
@@ -1050,7 +1030,6 @@ struct ieee80211_local {
         int total_ps_buffered; /* total number of all buffered unicast and
                                 * multicast packets for power saving stations
                                 */
-        unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
 
         bool pspolling;
         bool offchannel_ps_enabled;
@@ -1087,14 +1066,12 @@ struct ieee80211_local {
         } debugfs;
 #endif
 
-        struct ieee80211_channel *hw_roc_channel;
-        struct net_device *hw_roc_dev;
-        struct sk_buff *hw_roc_skb, *hw_roc_skb_for_status;
+        /*
+         * Remain-on-channel support
+         */
+        struct list_head roc_list;
         struct work_struct hw_roc_start, hw_roc_done;
-        enum nl80211_channel_type hw_roc_channel_type;
-        unsigned int hw_roc_duration;
-        u32 hw_roc_cookie;
-        bool hw_roc_for_tx;
+        unsigned long hw_roc_start_time;
 
         struct idr ack_status_frames;
         spinlock_t ack_status_lock;
@@ -1290,7 +1267,12 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
                                     bool offchannel_ps_enable);
 void ieee80211_offchannel_return(struct ieee80211_local *local,
                                  bool offchannel_ps_disable);
-void ieee80211_hw_roc_setup(struct ieee80211_local *local);
+void ieee80211_roc_setup(struct ieee80211_local *local);
+void ieee80211_start_next_roc(struct ieee80211_local *local);
+void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata);
+void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc);
+void ieee80211_sw_roc_work(struct work_struct *work);
+void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
 
 /* interface handling */
 int ieee80211_iface_init(void);
@@ -1500,18 +1482,6 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
                                enum nl80211_channel_type channel_type,
                                u16 prot_mode);
 
-/* internal work items */
-void ieee80211_work_init(struct ieee80211_local *local);
-void ieee80211_add_work(struct ieee80211_work *wk);
-void free_work(struct ieee80211_work *wk);
-void ieee80211_work_purge(struct ieee80211_sub_if_data *sdata);
-int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data *sdata,
-                                   struct ieee80211_channel *chan,
-                                   enum nl80211_channel_type channel_type,
-                                   unsigned int duration, u64 *cookie);
-int ieee80211_wk_cancel_remain_on_channel(
-        struct ieee80211_sub_if_data *sdata, u64 cookie);
-
 /* channel management */
 enum ieee80211_chan_mode {
         CHAN_MODE_UNDEFINED,