#include <linux/kref.h>
#include "ieee80211_key.h"
-/* Stations flags (struct sta_info::flags) */
-#define WLAN_STA_AUTH BIT(0)
-#define WLAN_STA_ASSOC BIT(1)
-#define WLAN_STA_PS BIT(2)
-#define WLAN_STA_TIM BIT(3) /* TIM bit is on for PS stations */
-#define WLAN_STA_PERM BIT(4) /* permanent; do not remove entry on expiration */
-#define WLAN_STA_AUTHORIZED BIT(5) /* If 802.1X is used, this flag is
- * controlling whether STA is authorized to
- * send and receive non-IEEE 802.1X frames
- */
-#define WLAN_STA_SHORT_PREAMBLE BIT(7)
-#define WLAN_STA_WME BIT(9)
-#define WLAN_STA_WDS BIT(27)
+/**
+ * enum ieee80211_sta_info_flags - Stations flags
+ *
+ * These flags are used with &struct sta_info's @flags member.
+ *
+ * @WLAN_STA_AUTH: Station is authenticated.
+ * @WLAN_STA_ASSOC: Station is associated.
+ * @WLAN_STA_PS: Station is in power-save mode
+ * @WLAN_STA_AUTHORIZED: Station is authorized to send/receive traffic.
+ * This bit is always checked so needs to be enabled for all stations
+ * when virtual port control is not in use.
+ * @WLAN_STA_SHORT_PREAMBLE: Station is capable of receiving short-preamble
+ * frames.
+ * @WLAN_STA_ASSOC_AP: We're associated to that station, it is an AP.
+ * @WLAN_STA_WME: Station is a QoS-STA.
+ * @WLAN_STA_WDS: Station is one of our WDS peers.
+ * @WLAN_STA_PSPOLL: Station has just PS-polled us.
+ */
+enum ieee80211_sta_info_flags {
+ WLAN_STA_AUTH = 1<<0,
+ WLAN_STA_ASSOC = 1<<1,
+ WLAN_STA_PS = 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_PSPOLL = 1<<8,
+};
+
+#define STA_TID_NUM 16
+#define ADDBA_RESP_INTERVAL HZ
+#define HT_AGG_MAX_RETRIES (0x3)
+
+#define HT_AGG_STATE_INITIATOR_SHIFT (4)
+
+#define HT_ADDBA_REQUESTED_MSK BIT(0)
+#define HT_ADDBA_DRV_READY_MSK BIT(1)
+#define HT_ADDBA_RECEIVED_MSK BIT(2)
+#define HT_AGG_STATE_REQ_STOP_BA_MSK BIT(3)
+#define HT_AGG_STATE_INITIATOR_MSK BIT(HT_AGG_STATE_INITIATOR_SHIFT)
+#define HT_AGG_STATE_IDLE (0x0)
+#define HT_AGG_STATE_OPERATIONAL (HT_ADDBA_REQUESTED_MSK | \
+ HT_ADDBA_DRV_READY_MSK | \
+ HT_ADDBA_RECEIVED_MSK)
+
+/**
+ * struct tid_ampdu_tx - TID aggregation information (Tx).
+ *
+ * @state: TID's state in session state machine.
+ * @dialog_token: dialog token for aggregation session
+ * @ssn: Starting Sequence Number expected to be aggregated.
+ * @addba_resp_timer: timer for peer's response to addba request
+ * @addba_req_num: number of times addBA request has been sent.
+ */
+struct tid_ampdu_tx {
+ u8 state;
+ u8 dialog_token;
+ u16 ssn;
+ struct timer_list addba_resp_timer;
+ u8 addba_req_num;
+};
+
+/**
+ * struct tid_ampdu_rx - TID aggregation information (Rx).
+ *
+ * @state: TID's state in session state machine.
+ * @dialog_token: dialog token for aggregation session
+ * @ssn: Starting Sequence Number expected to be aggregated.
+ * @buf_size: buffer size for incoming A-MPDUs
+ * @timeout: reset timer value.
+ * @head_seq_num: head sequence number in reordering buffer.
+ * @stored_mpdu_num: number of MPDUs in reordering buffer
+ * @reorder_buf: buffer to reorder incoming aggregated MPDUs
+ * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value)
+ */
+struct tid_ampdu_rx {
+ u8 state;
+ u8 dialog_token;
+ u16 ssn;
+ u16 buf_size;
+ u16 timeout;
+ u16 head_seq_num;
+ u16 stored_mpdu_num;
+ struct sk_buff **reorder_buf;
+ struct timer_list session_timer;
+};
+/**
+ * struct sta_ampdu_mlme - STA aggregation information.
+ *
+ * @tid_rx: aggregation info for Rx per TID
+ * @tid_tx: aggregation info for Tx per TID
+ * @ampdu_rx: for locking sections in aggregation Rx flow
+ * @ampdu_tx: for locking sectionsi in aggregation Tx flow
+ * @dialog_token_allocator: dialog token enumerator for each new session;
+ */
+struct sta_ampdu_mlme {
+ struct tid_ampdu_rx tid_rx[STA_TID_NUM];
+ struct tid_ampdu_tx tid_tx[STA_TID_NUM];
+ spinlock_t ampdu_rx;
+ spinlock_t ampdu_tx;
+ u8 dialog_token_allocator;
+};
struct sta_info {
struct kref kref;
struct sk_buff_head ps_tx_buf; /* buffer of TX frames for station in
* power saving state */
- int pspoll; /* whether STA has send a PS Poll frame */
struct sk_buff_head tx_filtered; /* buffer of TX frames that were
* already given to low-level driver,
* but were filtered */
unsigned int wep_weak_iv_count; /* number of RX frames with weak IV */
unsigned long last_rx;
- u32 supp_rates; /* bitmap of supported rates in local->curr_rates */
- int txrate; /* index in local->curr_rates */
- int last_txrate; /* last rate used to send a frame to this STA */
- int last_nonerp_idx;
+ /* bitmap of supported rates per band */
+ u64 supp_rates[IEEE80211_NUM_BANDS];
+ int txrate_idx;
+ /* last rates used to send a frame to this STA */
+ int last_txrate_idx, last_nonerp_txrate_idx;
struct net_device *dev; /* which net device is this station associated
* to */
int channel_use;
int channel_use_raw;
- u8 antenna_sel_tx;
- u8 antenna_sel_rx;
-
-
- int key_idx_compression; /* key table index for compression and TX
- * filtering; used only if sta->key is not
- * set */
-
- int assoc_ap; /* whether this is an AP that we are
- * associated with as a client */
-
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
- int vlan_id;
-
u16 listen_interval;
+
+ struct ieee80211_ht_info ht_info; /* 802.11n HT capabilities
+ of this STA */
+ struct sta_ampdu_mlme ampdu_mlme;
+ u8 timer_to_tid[STA_TID_NUM]; /* convert timer id to tid */
+ u8 tid_to_tx_q[STA_TID_NUM]; /* map tid to tx queue */
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct sta_info_debugfsdentries {
+ struct dentry *dir;
+ struct dentry *flags;
+ struct dentry *num_ps_buf_frames;
+ struct dentry *last_ack_rssi;
+ struct dentry *last_ack_ms;
+ struct dentry *inactive_ms;
+ struct dentry *last_seq_ctrl;
+#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
+ struct dentry *wme_rx_queue;
+ struct dentry *wme_tx_queue;
+#endif
+ struct dentry *agg_status;
+ } debugfs;
+#endif
};
*/
#define STA_INFO_CLEANUP_INTERVAL (10 * HZ)
+static inline void __sta_info_get(struct sta_info *sta)
+{
+ kref_get(&sta->kref);
+}
+
struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr);
-int sta_info_min_txrate_get(struct ieee80211_local *local);
void sta_info_put(struct sta_info *sta);
struct sta_info * sta_info_add(struct ieee80211_local *local,
struct net_device *dev, u8 *addr, gfp_t gfp);
-void sta_info_free(struct sta_info *sta, int locked);
+void sta_info_remove(struct sta_info *sta);
+void sta_info_free(struct sta_info *sta);
void sta_info_init(struct ieee80211_local *local);
int sta_info_start(struct ieee80211_local *local);
void sta_info_stop(struct ieee80211_local *local);
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