diff options
Diffstat (limited to 'net/mac80211/sta_info.h')
| -rw-r--r-- | net/mac80211/sta_info.h | 167 |
1 files changed, 135 insertions, 32 deletions
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index f8c95bc9659..94311dcfe04 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -32,7 +32,7 @@ * @WLAN_STA_WDS: Station is one of our WDS peers. * @WLAN_STA_PSPOLL: Station has just PS-polled us. * @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the - * IEEE80211_TXCTL_CLEAR_PS_FILT control flag) when the next + * IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next * frame to this station is transmitted. */ enum ieee80211_sta_info_flags { @@ -129,23 +129,19 @@ enum plink_state { * * @tid_state_rx: TID's state in Rx session state machine. * @tid_rx: aggregation info for Rx per TID - * @ampdu_rx: for locking sections in aggregation Rx flow * @tid_state_tx: TID's state in Tx session state machine. * @tid_tx: aggregation info for Tx per TID * @addba_req_num: number of times addBA request has been sent. - * @ampdu_tx: for locking sectionsi in aggregation Tx flow * @dialog_token_allocator: dialog token enumerator for each new session; */ struct sta_ampdu_mlme { /* rx */ u8 tid_state_rx[STA_TID_NUM]; struct tid_ampdu_rx *tid_rx[STA_TID_NUM]; - spinlock_t ampdu_rx; /* tx */ u8 tid_state_tx[STA_TID_NUM]; struct tid_ampdu_tx *tid_tx[STA_TID_NUM]; u8 addba_req_num[STA_TID_NUM]; - spinlock_t ampdu_tx; u8 dialog_token_allocator; }; @@ -164,9 +160,20 @@ struct sta_ampdu_mlme { * @list: global linked list entry * @hnext: hash table linked list pointer * @local: pointer to the global information + * @sdata: TBD + * @key: TBD + * @rate_ctrl: TBD + * @rate_ctrl_priv: TBD + * @lock: used for locking all fields that require locking, see comments + * in the header file. + * @flaglock: spinlock for flags accesses + * @ht_info: HT capabilities of this STA + * @supp_rates: Bitmap of supported rates (per band) * @addr: MAC address of this STA * @aid: STA's unique AID (1..2007, 0 = not assigned yet), * only used in AP (and IBSS?) mode + * @listen_interval: TBD + * @pin_status: TBD * @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 @@ -175,8 +182,41 @@ struct sta_ampdu_mlme { * power saving state * @rx_packets: Number of MSDUs received from this STA * @rx_bytes: Number of bytes received from this STA - * @supp_rates: Bitmap of supported rates (per band) - * @ht_info: HT capabilities of this STA + * @wep_weak_iv_count: TBD + * @last_rx: TBD + * @num_duplicates: number of duplicate frames received from this STA + * @rx_fragments: number of received MPDUs + * @rx_dropped: number of dropped MPDUs from this STA + * @last_signal: signal of last received frame from this STA + * @last_qual: qual of last received frame from this STA + * @last_noise: noise of last received frame from this STA + * @last_seq_ctrl: last received seq/frag number from this STA (per RX queue) + * @wme_rx_queue: TBD + * @tx_filtered_count: TBD + * @tx_retry_failed: TBD + * @tx_retry_count: TBD + * @tx_num_consecutive_failures: TBD + * @tx_num_mpdu_ok: TBD + * @tx_num_mpdu_fail: TBD + * @fail_avg: moving percentage of failed MSDUs + * @tx_packets: number of RX/TX MSDUs + * @tx_bytes: TBD + * @tx_fragments: number of transmitted MPDUs + * @txrate_idx: TBD + * @last_txrate_idx: TBD + * @wme_tx_queue: TBD + * @ampdu_mlme: TBD + * @timer_to_tid: identity mapping to ID timers + * @tid_to_tx_q: map tid to tx queue + * @llid: Local link ID + * @plid: Peer link ID + * @reason: Cancel reason on PLINK_HOLDING state + * @plink_retries: Retries in establishment + * @ignore_plink_timer: TBD + * @plink_state plink_state: TBD + * @plink_timeout: TBD + * @plink_timer: TBD + * @debugfs: debug filesystem info */ struct sta_info { /* General information, mostly static */ @@ -187,6 +227,8 @@ struct sta_info { struct ieee80211_key *key; struct rate_control_ref *rate_ctrl; void *rate_ctrl_priv; + spinlock_t lock; + spinlock_t flaglock; struct ieee80211_ht_info ht_info; u64 supp_rates[IEEE80211_NUM_BANDS]; u8 addr[ETH_ALEN]; @@ -199,7 +241,10 @@ struct sta_info { */ u8 pin_status; - /* frequently updated information, needs locking? */ + /* + * frequently updated, locked with own spinlock (flaglock), + * use the accessors defined below + */ u32 flags; /* @@ -213,14 +258,12 @@ struct sta_info { unsigned long rx_packets, rx_bytes; unsigned long wep_weak_iv_count; unsigned long last_rx; - unsigned long num_duplicates; /* number of duplicate frames received - * from this STA */ - unsigned long rx_fragments; /* number of received MPDUs */ - unsigned long rx_dropped; /* number of dropped MPDUs from this STA */ - int last_rssi; /* RSSI of last received frame from this STA */ - int last_signal; /* signal of last received frame from this STA */ - int last_noise; /* noise of last received frame from this STA */ - /* last received seq/frag number from this STA (per RX queue) */ + unsigned long num_duplicates; + unsigned long rx_fragments; + unsigned long rx_dropped; + int last_signal; + int last_qual; + int last_noise; __le16 last_seq_ctrl[NUM_RX_DATA_QUEUES]; #ifdef CONFIG_MAC80211_DEBUG_COUNTERS unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES]; @@ -237,42 +280,35 @@ struct sta_info { unsigned int fail_avg; /* Updated from TX path only, no locking requirements */ - unsigned long tx_packets; /* number of RX/TX MSDUs */ + unsigned long tx_packets; unsigned long tx_bytes; - unsigned long tx_fragments; /* number of transmitted MPDUs */ + unsigned long tx_fragments; int txrate_idx; int last_txrate_idx; #ifdef CONFIG_MAC80211_DEBUG_COUNTERS unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES]; #endif - /* Debug counters, no locking doesn't matter */ - int channel_use; - int channel_use_raw; - /* - * Aggregation information, comes with own locking. + * Aggregation information, locked with lock. */ struct sta_ampdu_mlme ampdu_mlme; - u8 timer_to_tid[STA_TID_NUM]; /* identity mapping to ID timers */ - u8 tid_to_tx_q[STA_TID_NUM]; /* map tid to tx queue */ + u8 timer_to_tid[STA_TID_NUM]; + u8 tid_to_tx_q[STA_TID_NUM]; #ifdef CONFIG_MAC80211_MESH /* * Mesh peer link attributes * TODO: move to a sub-structure that is referenced with pointer? */ - __le16 llid; /* Local link ID */ - __le16 plid; /* Peer link ID */ - __le16 reason; /* Cancel reason on PLINK_HOLDING state */ - u8 plink_retries; /* Retries in establishment */ + __le16 llid; + __le16 plid; + __le16 reason; + u8 plink_retries; bool ignore_plink_timer; enum plink_state plink_state; u32 plink_timeout; struct timer_list plink_timer; - spinlock_t plink_lock; /* For peer_state reads / updates and other - updates in the structure. Ensures robust - transitions for the peerlink FSM */ #endif #ifdef CONFIG_MAC80211_DEBUGFS @@ -299,6 +335,73 @@ static inline enum plink_state sta_plink_state(struct sta_info *sta) return PLINK_LISTEN; } +static inline void set_sta_flags(struct sta_info *sta, const u32 flags) +{ + unsigned long irqfl; + + spin_lock_irqsave(&sta->flaglock, irqfl); + sta->flags |= flags; + spin_unlock_irqrestore(&sta->flaglock, irqfl); +} + +static inline void clear_sta_flags(struct sta_info *sta, const u32 flags) +{ + unsigned long irqfl; + + spin_lock_irqsave(&sta->flaglock, irqfl); + sta->flags &= ~flags; + spin_unlock_irqrestore(&sta->flaglock, irqfl); +} + +static inline void set_and_clear_sta_flags(struct sta_info *sta, + const u32 set, const u32 clear) +{ + unsigned long irqfl; + + spin_lock_irqsave(&sta->flaglock, irqfl); + sta->flags |= set; + sta->flags &= ~clear; + spin_unlock_irqrestore(&sta->flaglock, irqfl); +} + +static inline u32 test_sta_flags(struct sta_info *sta, const u32 flags) +{ + 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; +} + +static inline u32 get_sta_flags(struct sta_info *sta) +{ + u32 ret; + unsigned long irqfl; + + spin_lock_irqsave(&sta->flaglock, irqfl); + ret = sta->flags; + spin_unlock_irqrestore(&sta->flaglock, irqfl); + + return ret; +} + /* Maximum number of concurrently registered stations */ #define MAX_STA_COUNT 2007 |