/**
* enum ieee80211_sta_info_flags - Stations flags
*
- * These flags are used with &struct sta_info's @flags member.
+ * These flags are used with &struct sta_info's @flags member, but
+ * only indirectly with set_sta_flag() and friends.
*
* @WLAN_STA_AUTH: Station is authenticated.
* @WLAN_STA_ASSOC: Station is associated.
* be in the queues
* @WLAN_STA_PSPOLL: Station sent PS-poll while driver was keeping
* station in power-save mode, reply when the driver unblocks.
- * @WLAN_STA_PS_DRIVER_BUF: Station has frames pending in driver internal
- * buffers. Automatically cleared on station wake-up.
+ * @WLAN_STA_TDLS_PEER: Station is a TDLS peer.
+ * @WLAN_STA_TDLS_PEER_AUTH: This TDLS peer is authorized to send direct
+ * packets. This means the link is enabled.
+ * @WLAN_STA_UAPSD: Station requested unscheduled SP while driver was
+ * keeping station in power-save mode, reply when the driver
+ * unblocks the station.
+ * @WLAN_STA_SP: Station is in a service period, so don't try to
+ * reply to other uAPSD trigger frames or PS-Poll.
*/
enum ieee80211_sta_info_flags {
- WLAN_STA_AUTH = 1<<0,
- WLAN_STA_ASSOC = 1<<1,
- WLAN_STA_PS_STA = 1<<2,
- WLAN_STA_AUTHORIZED = 1<<3,
- WLAN_STA_SHORT_PREAMBLE = 1<<4,
- WLAN_STA_ASSOC_AP = 1<<5,
- WLAN_STA_WME = 1<<6,
- WLAN_STA_WDS = 1<<7,
- WLAN_STA_CLEAR_PS_FILT = 1<<9,
- WLAN_STA_MFP = 1<<10,
- WLAN_STA_BLOCK_BA = 1<<11,
- WLAN_STA_PS_DRIVER = 1<<12,
- WLAN_STA_PSPOLL = 1<<13,
- WLAN_STA_PS_DRIVER_BUF = 1<<14,
+ WLAN_STA_AUTH,
+ WLAN_STA_ASSOC,
+ WLAN_STA_PS_STA,
+ WLAN_STA_AUTHORIZED,
+ WLAN_STA_SHORT_PREAMBLE,
+ WLAN_STA_ASSOC_AP,
+ WLAN_STA_WME,
+ WLAN_STA_WDS,
+ WLAN_STA_CLEAR_PS_FILT,
+ WLAN_STA_MFP,
+ WLAN_STA_BLOCK_BA,
+ WLAN_STA_PS_DRIVER,
+ WLAN_STA_PSPOLL,
+ WLAN_STA_TDLS_PEER,
+ WLAN_STA_TDLS_PEER_AUTH,
+ WLAN_STA_UAPSD,
+ WLAN_STA_SP,
};
#define STA_TID_NUM 16
* @stop_initiator: initiator of a session stop
* @tx_stop: TX DelBA frame when stopping
* @buf_size: reorder buffer size at receiver
+ * @failed_bar_ssn: ssn of the last failed BAR tx attempt
+ * @bar_pending: BAR needs to be re-sent
*
* This structure's lifetime is managed by RCU, assignments to
* the array holding it must hold the aggregation mutex.
u8 stop_initiator;
bool tx_stop;
u8 buf_size;
+
+ u16 failed_bar_ssn;
+ bool bar_pending;
};
/**
* @last_rx_rate_flag: rx status flag of the last data packet
* @lock: used for locking all fields that require locking, see comments
* in the header file.
- * @flaglock: spinlock for flags accesses
* @drv_unblock_wk: used for driver PS unblocking
* @listen_interval: listen interval of this station, when we're acting as AP
- * @flags: STA flags, see &enum ieee80211_sta_info_flags
- * @ps_tx_buf: buffer of frames to transmit to this station
- * when it leaves power saving state
- * @tx_filtered: buffer of frames we already tried to transmit
- * but were filtered by hardware due to STA having entered
- * power saving state
+ * @_flags: STA flags, see &enum ieee80211_sta_info_flags, do not use directly
+ * @ps_tx_buf: buffers (per AC) of frames to transmit to this station
+ * when it leaves power saving state or polls
+ * @tx_filtered: buffers (per AC) of frames we already tried to
+ * transmit but were filtered by hardware due to STA having
+ * entered power saving state, these are also delivered to
+ * the station when it leaves powersave or polls for frames
+ * @driver_buffered_tids: bitmap of TIDs the driver has data buffered on
* @rx_packets: Number of MSDUs received from this STA
* @rx_bytes: Number of bytes received from this STA
* @wep_weak_iv_count: number of weak WEP IVs received from this station
* @plink_timer: peer link watch timer
* @plink_timer_was_running: used by suspend/resume to restore timers
* @debugfs: debug filesystem info
- * @sta: station information we share with the driver
* @dead: set to true when sta is unlinked
* @uploaded: set to true when sta is uploaded to the driver
* @lost_packets: number of consecutive lost packets
+ * @dummy: indicate a dummy station created for receiving
+ * EAP frames before association
+ * @sta: station information we share with the driver
*/
struct sta_info {
/* General information, mostly static */
struct rate_control_ref *rate_ctrl;
void *rate_ctrl_priv;
spinlock_t lock;
- spinlock_t flaglock;
struct work_struct drv_unblock_wk;
bool uploaded;
- /*
- * frequently updated, locked with own spinlock (flaglock),
- * use the accessors defined below
- */
- u32 flags;
+ /* use the accessors defined below */
+ unsigned long _flags;
/*
* STA powersave frame queues, no more than the internal
* locking required.
*/
- struct sk_buff_head ps_tx_buf;
- struct sk_buff_head tx_filtered;
+ struct sk_buff_head ps_tx_buf[IEEE80211_NUM_ACS];
+ struct sk_buff_head tx_filtered[IEEE80211_NUM_ACS];
+ unsigned long driver_buffered_tids;
/* Updated from RX path only, no locking requirements */
unsigned long rx_packets, rx_bytes;
unsigned int lost_packets;
+ /* should be right in front of sta to be in the same cache line */
+ bool dummy;
+
/* keep last! */
struct ieee80211_sta sta;
};
return NL80211_PLINK_LISTEN;
}
-static inline void set_sta_flags(struct sta_info *sta, const u32 flags)
+static inline void set_sta_flag(struct sta_info *sta,
+ enum ieee80211_sta_info_flags flag)
{
- unsigned long irqfl;
-
- spin_lock_irqsave(&sta->flaglock, irqfl);
- sta->flags |= flags;
- spin_unlock_irqrestore(&sta->flaglock, irqfl);
+ set_bit(flag, &sta->_flags);
}
-static inline void clear_sta_flags(struct sta_info *sta, const u32 flags)
+static inline void clear_sta_flag(struct sta_info *sta,
+ enum ieee80211_sta_info_flags flag)
{
- unsigned long irqfl;
-
- spin_lock_irqsave(&sta->flaglock, irqfl);
- sta->flags &= ~flags;
- spin_unlock_irqrestore(&sta->flaglock, irqfl);
+ clear_bit(flag, &sta->_flags);
}
-static inline u32 test_sta_flags(struct sta_info *sta, const u32 flags)
+static inline int test_sta_flag(struct sta_info *sta,
+ enum ieee80211_sta_info_flags flag)
{
- u32 ret;
- unsigned long irqfl;
-
- spin_lock_irqsave(&sta->flaglock, irqfl);
- ret = sta->flags & flags;
- spin_unlock_irqrestore(&sta->flaglock, irqfl);
-
- return ret;
-}
-
-static inline u32 test_and_clear_sta_flags(struct sta_info *sta,
- const u32 flags)
-{
- u32 ret;
- unsigned long irqfl;
-
- spin_lock_irqsave(&sta->flaglock, irqfl);
- ret = sta->flags & flags;
- sta->flags &= ~flags;
- spin_unlock_irqrestore(&sta->flaglock, irqfl);
-
- return ret;
+ return test_bit(flag, &sta->_flags);
}
-static inline u32 get_sta_flags(struct sta_info *sta)
+static inline int test_and_clear_sta_flag(struct sta_info *sta,
+ enum ieee80211_sta_info_flags flag)
{
- u32 ret;
- unsigned long irqfl;
-
- spin_lock_irqsave(&sta->flaglock, irqfl);
- ret = sta->flags;
- spin_unlock_irqrestore(&sta->flaglock, irqfl);
-
- return ret;
+ return test_and_clear_bit(flag, &sta->_flags);
}
void ieee80211_assign_tid_tx(struct sta_info *sta, int tid,
#define STA_HASH(sta) (sta[5])
-/* Maximum number of frames to buffer per power saving station */
-#define STA_MAX_TX_BUFFER 128
+/* Maximum number of frames to buffer per power saving station per AC */
+#define STA_MAX_TX_BUFFER 64
/* Minimum buffered frame expiry time. If STA uses listen interval that is
* smaller than this value, the minimum value here is used instead. */
struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata,
const u8 *addr);
+struct sta_info *sta_info_get_rx(struct ieee80211_sub_if_data *sdata,
+ const u8 *addr);
+
struct sta_info *sta_info_get_bss(struct ieee80211_sub_if_data *sdata,
const u8 *addr);
+struct sta_info *sta_info_get_bss_rx(struct ieee80211_sub_if_data *sdata,
+ const u8 *addr);
+
static inline
void for_each_sta_info_type_check(struct ieee80211_local *local,
const u8 *addr,
}
#define for_each_sta_info(local, _addr, _sta, nxt) \
+ for ( /* initialise loop */ \
+ _sta = rcu_dereference(local->sta_hash[STA_HASH(_addr)]),\
+ nxt = _sta ? rcu_dereference(_sta->hnext) : NULL; \
+ /* typecheck */ \
+ for_each_sta_info_type_check(local, (_addr), _sta, nxt),\
+ /* continue condition */ \
+ _sta; \
+ /* advance loop */ \
+ _sta = nxt, \
+ nxt = _sta ? rcu_dereference(_sta->hnext) : NULL \
+ ) \
+ /* run code only if address matches and it's not a dummy sta */ \
+ if (memcmp(_sta->sta.addr, (_addr), ETH_ALEN) == 0 && \
+ !_sta->dummy)
+
+#define for_each_sta_info_rx(local, _addr, _sta, nxt) \
for ( /* initialise loop */ \
_sta = rcu_dereference(local->sta_hash[STA_HASH(_addr)]),\
nxt = _sta ? rcu_dereference(_sta->hnext) : NULL; \
int sta_info_insert(struct sta_info *sta);
int sta_info_insert_rcu(struct sta_info *sta) __acquires(RCU);
int sta_info_insert_atomic(struct sta_info *sta);
+int sta_info_reinsert(struct sta_info *sta);
int sta_info_destroy_addr(struct ieee80211_sub_if_data *sdata,
const u8 *addr);
int sta_info_destroy_addr_bss(struct ieee80211_sub_if_data *sdata,
const u8 *addr);
-void sta_info_set_tim_bit(struct sta_info *sta);
-void sta_info_clear_tim_bit(struct sta_info *sta);
+void sta_info_recalc_tim(struct sta_info *sta);
void sta_info_init(struct ieee80211_local *local);
void sta_info_stop(struct ieee80211_local *local);
void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta);
void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta);
+void ieee80211_sta_ps_deliver_uapsd(struct sta_info *sta);
#endif /* STA_INFO_H */
git.openpandora.org / pandora-kernel.git / blobdiff