mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 04:34:11 +08:00
902acc7896
Various cleanups, reducing the #ifdef mess and other things. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
279 lines
8.5 KiB
C
279 lines
8.5 KiB
C
/*
|
|
* Copyright 2002-2005, Devicescape Software, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef STA_INFO_H
|
|
#define STA_INFO_H
|
|
|
|
#include <linux/list.h>
|
|
#include <linux/types.h>
|
|
#include <linux/if_ether.h>
|
|
#include <linux/kref.h>
|
|
#include "ieee80211_key.h"
|
|
|
|
/**
|
|
* 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.
|
|
* @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the
|
|
* IEEE80211_TXCTL_CLEAR_PS_FILT control flag) when the next
|
|
* frame to this station is transmitted.
|
|
*/
|
|
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,
|
|
WLAN_STA_CLEAR_PS_FILT = 1<<9,
|
|
};
|
|
|
|
#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;
|
|
};
|
|
|
|
enum plink_state {
|
|
LISTEN,
|
|
OPN_SNT,
|
|
OPN_RCVD,
|
|
CNF_RCVD,
|
|
ESTAB,
|
|
HOLDING,
|
|
BLOCKED
|
|
};
|
|
|
|
/**
|
|
* 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 list_head list;
|
|
struct sta_info *hnext; /* next entry in hash table list */
|
|
|
|
struct ieee80211_local *local;
|
|
|
|
u8 addr[ETH_ALEN];
|
|
u16 aid; /* STA's unique AID (1..2007), 0 = not yet assigned */
|
|
u32 flags; /* WLAN_STA_ */
|
|
|
|
struct sk_buff_head ps_tx_buf; /* buffer of TX frames for station in
|
|
* power saving state */
|
|
struct sk_buff_head tx_filtered; /* buffer of TX frames that were
|
|
* already given to low-level driver,
|
|
* but were filtered */
|
|
unsigned long rx_packets, tx_packets; /* number of RX/TX MSDUs */
|
|
unsigned long rx_bytes, tx_bytes;
|
|
unsigned long tx_retry_failed, tx_retry_count;
|
|
unsigned long tx_filtered_count;
|
|
/* moving percentage of failed MSDUs */
|
|
unsigned int fail_avg;
|
|
|
|
unsigned int wep_weak_iv_count; /* number of RX frames with weak IV */
|
|
|
|
unsigned long last_rx;
|
|
/* 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 */
|
|
|
|
struct ieee80211_key *key;
|
|
|
|
u32 tx_num_consecutive_failures;
|
|
u32 tx_num_mpdu_ok;
|
|
u32 tx_num_mpdu_fail;
|
|
|
|
struct rate_control_ref *rate_ctrl;
|
|
void *rate_ctrl_priv;
|
|
|
|
/* last received seq/frag number from this STA (per RX queue) */
|
|
__le16 last_seq_ctrl[NUM_RX_DATA_QUEUES];
|
|
unsigned long num_duplicates; /* number of duplicate frames received
|
|
* from this STA */
|
|
unsigned long tx_fragments; /* number of transmitted MPDUs */
|
|
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 */
|
|
int channel_use;
|
|
int channel_use_raw;
|
|
|
|
#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 */
|
|
|
|
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_MESH
|
|
/* mesh peer link attributes */
|
|
__le16 llid; /* Local link ID */
|
|
__le16 plid; /* Peer link ID */
|
|
__le16 reason; /* Buffer for cancel reason on HOLDING state */
|
|
enum plink_state plink_state;
|
|
u32 plink_timeout;
|
|
struct timer_list plink_timer;
|
|
u8 plink_retries; /* Retries in establishment */
|
|
bool ignore_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
|
|
struct sta_info_debugfsdentries {
|
|
struct dentry *dir;
|
|
struct dentry *flags;
|
|
struct dentry *num_ps_buf_frames;
|
|
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
|
|
};
|
|
|
|
|
|
/* Maximum number of concurrently registered stations */
|
|
#define MAX_STA_COUNT 2007
|
|
|
|
#define STA_HASH_SIZE 256
|
|
#define STA_HASH(sta) (sta[5])
|
|
|
|
|
|
/* Maximum number of frames to buffer per power saving station */
|
|
#define STA_MAX_TX_BUFFER 128
|
|
|
|
/* Minimum buffered frame expiry time. If STA uses listen interval that is
|
|
* smaller than this value, the minimum value here is used instead. */
|
|
#define STA_TX_BUFFER_EXPIRE (10 * HZ)
|
|
|
|
/* How often station data is cleaned up (e.g., expiration of buffered frames)
|
|
*/
|
|
#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);
|
|
struct sta_info *sta_info_get_by_idx(struct ieee80211_local *local, int idx,
|
|
struct net_device *dev);
|
|
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_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);
|
|
void sta_info_flush(struct ieee80211_local *local, struct net_device *dev);
|
|
|
|
void sta_info_set_tim_bit(struct sta_info *sta);
|
|
void sta_info_clear_tim_bit(struct sta_info *sta);
|
|
|
|
#endif /* STA_INFO_H */
|