diff options
Diffstat (limited to 'net/mac80211/sta_info.h')
| -rw-r--r-- | net/mac80211/sta_info.h | 119 |
1 files changed, 68 insertions, 51 deletions
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index ccc3adf962c7..822d84522937 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -12,6 +12,7 @@ #include <linux/list.h> #include <linux/types.h> #include <linux/if_ether.h> +#include <linux/workqueue.h> #include "key.h" /** @@ -21,7 +22,7 @@ * * @WLAN_STA_AUTH: Station is authenticated. * @WLAN_STA_ASSOC: Station is associated. - * @WLAN_STA_PS: Station is in power-save mode + * @WLAN_STA_PS_STA: 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. @@ -36,11 +37,19 @@ * @WLAN_STA_MFP: Management frame protection is used with this STA. * @WLAN_STA_SUSPEND: Set/cleared during a suspend/resume cycle. * Used to deny ADDBA requests (both TX and RX). + * @WLAN_STA_PS_DRIVER: driver requires keeping this station in + * power-save mode logically to flush frames that might still + * 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_DISASSOC: Disassociation in progress. + * This is used to reject TX BA session requests when disassociation + * is in progress. */ enum ieee80211_sta_info_flags { WLAN_STA_AUTH = 1<<0, WLAN_STA_ASSOC = 1<<1, - WLAN_STA_PS = 1<<2, + WLAN_STA_PS_STA = 1<<2, WLAN_STA_AUTHORIZED = 1<<3, WLAN_STA_SHORT_PREAMBLE = 1<<4, WLAN_STA_ASSOC_AP = 1<<5, @@ -48,7 +57,10 @@ enum ieee80211_sta_info_flags { WLAN_STA_WDS = 1<<7, WLAN_STA_CLEAR_PS_FILT = 1<<9, WLAN_STA_MFP = 1<<10, - WLAN_STA_SUSPEND = 1<<11 + WLAN_STA_SUSPEND = 1<<11, + WLAN_STA_PS_DRIVER = 1<<12, + WLAN_STA_PSPOLL = 1<<13, + WLAN_STA_DISASSOC = 1<<14, }; #define STA_TID_NUM 16 @@ -154,11 +166,6 @@ struct sta_ampdu_mlme { }; -/* see __sta_info_unlink */ -#define STA_INFO_PIN_STAT_NORMAL 0 -#define STA_INFO_PIN_STAT_PINNED 1 -#define STA_INFO_PIN_STAT_DESTROY 2 - /** * struct sta_info - STA information * @@ -177,8 +184,8 @@ struct sta_ampdu_mlme { * @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 - * @pin_status: used internally for pinning a STA struct into memory * @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 @@ -193,7 +200,6 @@ struct sta_ampdu_mlme { * @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) * @tx_filtered_count: number of frames the hardware filtered for this STA @@ -217,6 +223,8 @@ struct sta_ampdu_mlme { * @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 */ struct sta_info { /* General information, mostly static */ @@ -230,13 +238,13 @@ struct sta_info { spinlock_t lock; spinlock_t flaglock; + struct work_struct drv_unblock_wk; + u16 listen_interval; - /* - * for use by the internal lifetime management, - * see __sta_info_unlink - */ - u8 pin_status; + bool dead; + + bool uploaded; /* * frequently updated, locked with own spinlock (flaglock), @@ -259,7 +267,6 @@ struct sta_info { 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]; @@ -301,28 +308,6 @@ struct sta_info { #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; - struct dentry *agg_status; - struct dentry *aid; - struct dentry *dev; - struct dentry *rx_packets; - struct dentry *tx_packets; - struct dentry *rx_bytes; - struct dentry *tx_bytes; - struct dentry *rx_duplicates; - struct dentry *rx_fragments; - struct dentry *rx_dropped; - struct dentry *tx_fragments; - struct dentry *tx_filtered; - struct dentry *tx_retry_failed; - struct dentry *tx_retry_count; - struct dentry *last_signal; - struct dentry *last_qual; - struct dentry *last_noise; - struct dentry *wep_weak_iv_count; bool add_has_run; } debugfs; #endif @@ -413,14 +398,42 @@ static inline u32 get_sta_flags(struct sta_info *sta) #define STA_INFO_CLEANUP_INTERVAL (10 * HZ) /* - * Get a STA info, must have be under RCU read lock. + * Get a STA info, must be under RCU read lock. */ -struct sta_info *sta_info_get(struct ieee80211_local *local, const u8 *addr); +struct sta_info *sta_info_get(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); + +static inline +void for_each_sta_info_type_check(struct ieee80211_local *local, + const u8 *addr, + struct sta_info *sta, + struct sta_info *nxt) +{ +} + +#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 \ + ) \ + /* compare address and run code only if it matches */ \ + if (memcmp(sta->sta.addr, (_addr), ETH_ALEN) == 0) + /* * Get STA info by index, BROKEN! */ -struct sta_info *sta_info_get_by_idx(struct ieee80211_local *local, int idx, - struct net_device *dev); +struct sta_info *sta_info_get_by_idx(struct ieee80211_sub_if_data *sdata, + int idx); /* * Create a new STA info, caller owns returned structure * until sta_info_insert(). @@ -431,18 +444,19 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, * Insert STA info into hash table/list, returns zero or a * -EEXIST if (if the same MAC address is already present). * - * Calling this without RCU protection makes the caller - * relinquish its reference to @sta. + * Calling the non-rcu version makes the caller relinquish, + * the _rcu version calls read_lock_rcu() and must be called + * without it held. */ int sta_info_insert(struct sta_info *sta); -/* - * Unlink a STA info from the hash table/list. - * This can NULL the STA pointer if somebody else - * has already unlinked it. - */ -void sta_info_unlink(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_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_destroy(struct sta_info *sta); void sta_info_set_tim_bit(struct sta_info *sta); void sta_info_clear_tim_bit(struct sta_info *sta); @@ -454,4 +468,7 @@ int sta_info_flush(struct ieee80211_local *local, void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata, unsigned long exp_time); +void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta); +void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta); + #endif /* STA_INFO_H */ |