Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2002-2005, Devicescape Software, Inc. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
| 7 | */ |
| 8 | |
| 9 | #ifndef STA_INFO_H |
| 10 | #define STA_INFO_H |
| 11 | |
| 12 | #include <linux/list.h> |
| 13 | #include <linux/types.h> |
| 14 | #include <linux/if_ether.h> |
Johannes Berg | 2c8dccc | 2008-04-08 15:14:40 -0400 | [diff] [blame] | 15 | #include "key.h" |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 16 | |
Johannes Berg | 238814f | 2008-01-28 17:19:37 +0100 | [diff] [blame] | 17 | /** |
| 18 | * enum ieee80211_sta_info_flags - Stations flags |
| 19 | * |
| 20 | * These flags are used with &struct sta_info's @flags member. |
| 21 | * |
| 22 | * @WLAN_STA_AUTH: Station is authenticated. |
| 23 | * @WLAN_STA_ASSOC: Station is associated. |
| 24 | * @WLAN_STA_PS: Station is in power-save mode |
Johannes Berg | 238814f | 2008-01-28 17:19:37 +0100 | [diff] [blame] | 25 | * @WLAN_STA_AUTHORIZED: Station is authorized to send/receive traffic. |
| 26 | * This bit is always checked so needs to be enabled for all stations |
| 27 | * when virtual port control is not in use. |
| 28 | * @WLAN_STA_SHORT_PREAMBLE: Station is capable of receiving short-preamble |
| 29 | * frames. |
| 30 | * @WLAN_STA_ASSOC_AP: We're associated to that station, it is an AP. |
| 31 | * @WLAN_STA_WME: Station is a QoS-STA. |
| 32 | * @WLAN_STA_WDS: Station is one of our WDS peers. |
Johannes Berg | 4a9a66e | 2008-02-19 11:31:14 +0100 | [diff] [blame] | 33 | * @WLAN_STA_PSPOLL: Station has just PS-polled us. |
Johannes Berg | d46e144 | 2008-02-20 23:59:33 +0100 | [diff] [blame] | 34 | * @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 35 | * IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next |
Johannes Berg | d46e144 | 2008-02-20 23:59:33 +0100 | [diff] [blame] | 36 | * frame to this station is transmitted. |
Jouni Malinen | 5394af4 | 2009-01-08 13:31:59 +0200 | [diff] [blame] | 37 | * @WLAN_STA_MFP: Management frame protection is used with this STA. |
Sujith | 722f069 | 2009-03-17 08:50:06 +0530 | [diff] [blame] | 38 | * @WLAN_STA_SUSPEND: Set/cleared during a suspend/resume cycle. |
| 39 | * Used to deny ADDBA requests (both TX and RX). |
Johannes Berg | 238814f | 2008-01-28 17:19:37 +0100 | [diff] [blame] | 40 | */ |
| 41 | enum ieee80211_sta_info_flags { |
| 42 | WLAN_STA_AUTH = 1<<0, |
| 43 | WLAN_STA_ASSOC = 1<<1, |
| 44 | WLAN_STA_PS = 1<<2, |
Johannes Berg | 836341a | 2008-02-20 02:07:21 +0100 | [diff] [blame] | 45 | WLAN_STA_AUTHORIZED = 1<<3, |
| 46 | WLAN_STA_SHORT_PREAMBLE = 1<<4, |
| 47 | WLAN_STA_ASSOC_AP = 1<<5, |
| 48 | WLAN_STA_WME = 1<<6, |
| 49 | WLAN_STA_WDS = 1<<7, |
| 50 | WLAN_STA_PSPOLL = 1<<8, |
Johannes Berg | d46e144 | 2008-02-20 23:59:33 +0100 | [diff] [blame] | 51 | WLAN_STA_CLEAR_PS_FILT = 1<<9, |
Jouni Malinen | 5394af4 | 2009-01-08 13:31:59 +0200 | [diff] [blame] | 52 | WLAN_STA_MFP = 1<<10, |
Sujith | 722f069 | 2009-03-17 08:50:06 +0530 | [diff] [blame] | 53 | WLAN_STA_SUSPEND = 1<<11 |
Johannes Berg | 238814f | 2008-01-28 17:19:37 +0100 | [diff] [blame] | 54 | }; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 55 | |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 56 | #define STA_TID_NUM 16 |
| 57 | #define ADDBA_RESP_INTERVAL HZ |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 58 | #define HT_AGG_MAX_RETRIES (0x3) |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 59 | |
| 60 | #define HT_AGG_STATE_INITIATOR_SHIFT (4) |
| 61 | |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 62 | #define HT_ADDBA_REQUESTED_MSK BIT(0) |
| 63 | #define HT_ADDBA_DRV_READY_MSK BIT(1) |
| 64 | #define HT_ADDBA_RECEIVED_MSK BIT(2) |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 65 | #define HT_AGG_STATE_REQ_STOP_BA_MSK BIT(3) |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 66 | #define HT_AGG_STATE_INITIATOR_MSK BIT(HT_AGG_STATE_INITIATOR_SHIFT) |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 67 | #define HT_AGG_STATE_IDLE (0x0) |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 68 | #define HT_AGG_STATE_OPERATIONAL (HT_ADDBA_REQUESTED_MSK | \ |
| 69 | HT_ADDBA_DRV_READY_MSK | \ |
| 70 | HT_ADDBA_RECEIVED_MSK) |
| 71 | |
| 72 | /** |
| 73 | * struct tid_ampdu_tx - TID aggregation information (Tx). |
| 74 | * |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 75 | * @addba_resp_timer: timer for peer's response to addba request |
Johannes Berg | cd8ffc8 | 2009-03-23 17:28:41 +0100 | [diff] [blame] | 76 | * @pending: pending frames queue -- use sta's spinlock to protect |
Ron Rindjunsky | cee24a3 | 2008-03-26 20:36:03 +0200 | [diff] [blame] | 77 | * @ssn: Starting Sequence Number expected to be aggregated. |
| 78 | * @dialog_token: dialog token for aggregation session |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 79 | */ |
| 80 | struct tid_ampdu_tx { |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 81 | struct timer_list addba_resp_timer; |
Johannes Berg | cd8ffc8 | 2009-03-23 17:28:41 +0100 | [diff] [blame] | 82 | struct sk_buff_head pending; |
Ron Rindjunsky | cee24a3 | 2008-03-26 20:36:03 +0200 | [diff] [blame] | 83 | u16 ssn; |
| 84 | u8 dialog_token; |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 85 | }; |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 86 | |
| 87 | /** |
| 88 | * struct tid_ampdu_rx - TID aggregation information (Rx). |
| 89 | * |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 90 | * @reorder_buf: buffer to reorder incoming aggregated MPDUs |
| 91 | * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value) |
Johannes Berg | 056cdd5 | 2008-03-26 23:21:47 +0100 | [diff] [blame] | 92 | * @head_seq_num: head sequence number in reordering buffer. |
| 93 | * @stored_mpdu_num: number of MPDUs in reordering buffer |
Ron Rindjunsky | cee24a3 | 2008-03-26 20:36:03 +0200 | [diff] [blame] | 94 | * @ssn: Starting Sequence Number expected to be aggregated. |
| 95 | * @buf_size: buffer size for incoming A-MPDUs |
Johannes Berg | 20ad19d | 2009-02-10 21:25:45 +0100 | [diff] [blame] | 96 | * @timeout: reset timer value (in TUs). |
Ron Rindjunsky | cee24a3 | 2008-03-26 20:36:03 +0200 | [diff] [blame] | 97 | * @dialog_token: dialog token for aggregation session |
Johannes Berg | 0a16ec5 | 2009-02-18 09:56:47 +0100 | [diff] [blame] | 98 | * @shutdown: this session is being shut down due to STA removal |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 99 | */ |
| 100 | struct tid_ampdu_rx { |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 101 | struct sk_buff **reorder_buf; |
| 102 | struct timer_list session_timer; |
Johannes Berg | 056cdd5 | 2008-03-26 23:21:47 +0100 | [diff] [blame] | 103 | u16 head_seq_num; |
| 104 | u16 stored_mpdu_num; |
Ron Rindjunsky | cee24a3 | 2008-03-26 20:36:03 +0200 | [diff] [blame] | 105 | u16 ssn; |
| 106 | u16 buf_size; |
| 107 | u16 timeout; |
| 108 | u8 dialog_token; |
Johannes Berg | 55687e3 | 2009-02-10 21:25:51 +0100 | [diff] [blame] | 109 | bool shutdown; |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 110 | }; |
| 111 | |
Luis Carlos Cobo | b4e08ea | 2008-02-29 15:46:08 -0800 | [diff] [blame] | 112 | /** |
| 113 | * enum plink_state - state of a mesh peer link finite state machine |
| 114 | * |
| 115 | * @PLINK_LISTEN: initial state, considered the implicit state of non existant |
| 116 | * mesh peer links |
| 117 | * @PLINK_OPN_SNT: mesh plink open frame has been sent to this mesh peer |
| 118 | * @PLINK_OPN_RCVD: mesh plink open frame has been received from this mesh peer |
| 119 | * @PLINK_CNF_RCVD: mesh plink confirm frame has been received from this mesh |
| 120 | * peer |
| 121 | * @PLINK_ESTAB: mesh peer link is established |
| 122 | * @PLINK_HOLDING: mesh peer link is being closed or cancelled |
| 123 | * @PLINK_BLOCKED: all frames transmitted from this mesh plink are discarded |
| 124 | */ |
Luis Carlos Cobo | ee38585 | 2008-02-23 15:17:11 +0100 | [diff] [blame] | 125 | enum plink_state { |
Luis Carlos Cobo | b4e08ea | 2008-02-29 15:46:08 -0800 | [diff] [blame] | 126 | PLINK_LISTEN, |
| 127 | PLINK_OPN_SNT, |
| 128 | PLINK_OPN_RCVD, |
| 129 | PLINK_CNF_RCVD, |
| 130 | PLINK_ESTAB, |
| 131 | PLINK_HOLDING, |
| 132 | PLINK_BLOCKED |
Luis Carlos Cobo | ee38585 | 2008-02-23 15:17:11 +0100 | [diff] [blame] | 133 | }; |
Luis Carlos Cobo | ee38585 | 2008-02-23 15:17:11 +0100 | [diff] [blame] | 134 | |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 135 | /** |
| 136 | * struct sta_ampdu_mlme - STA aggregation information. |
| 137 | * |
Ron Rindjunsky | cee24a3 | 2008-03-26 20:36:03 +0200 | [diff] [blame] | 138 | * @tid_state_rx: TID's state in Rx session state machine. |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 139 | * @tid_rx: aggregation info for Rx per TID |
Ron Rindjunsky | cee24a3 | 2008-03-26 20:36:03 +0200 | [diff] [blame] | 140 | * @tid_state_tx: TID's state in Tx session state machine. |
| 141 | * @tid_tx: aggregation info for Tx per TID |
| 142 | * @addba_req_num: number of times addBA request has been sent. |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 143 | * @dialog_token_allocator: dialog token enumerator for each new session; |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 144 | */ |
| 145 | struct sta_ampdu_mlme { |
Ron Rindjunsky | cee24a3 | 2008-03-26 20:36:03 +0200 | [diff] [blame] | 146 | /* rx */ |
| 147 | u8 tid_state_rx[STA_TID_NUM]; |
| 148 | struct tid_ampdu_rx *tid_rx[STA_TID_NUM]; |
Ron Rindjunsky | cee24a3 | 2008-03-26 20:36:03 +0200 | [diff] [blame] | 149 | /* tx */ |
| 150 | u8 tid_state_tx[STA_TID_NUM]; |
| 151 | struct tid_ampdu_tx *tid_tx[STA_TID_NUM]; |
| 152 | u8 addba_req_num[STA_TID_NUM]; |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 153 | u8 dialog_token_allocator; |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 154 | }; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 155 | |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 156 | |
| 157 | /* see __sta_info_unlink */ |
| 158 | #define STA_INFO_PIN_STAT_NORMAL 0 |
| 159 | #define STA_INFO_PIN_STAT_PINNED 1 |
| 160 | #define STA_INFO_PIN_STAT_DESTROY 2 |
| 161 | |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 162 | /** |
| 163 | * struct sta_info - STA information |
| 164 | * |
| 165 | * This structure collects information about a station that |
| 166 | * mac80211 is communicating with. |
| 167 | * |
| 168 | * @list: global linked list entry |
| 169 | * @hnext: hash table linked list pointer |
| 170 | * @local: pointer to the global information |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 171 | * @sdata: virtual interface this station belongs to |
| 172 | * @key: peer key negotiated with this station, if any |
| 173 | * @rate_ctrl: rate control algorithm reference |
| 174 | * @rate_ctrl_priv: rate control private per-STA pointer |
| 175 | * @last_tx_rate: rate used for last transmit, to report to userspace as |
| 176 | * "the" transmit rate |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 177 | * @lock: used for locking all fields that require locking, see comments |
| 178 | * in the header file. |
| 179 | * @flaglock: spinlock for flags accesses |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 180 | * @listen_interval: listen interval of this station, when we're acting as AP |
| 181 | * @pin_status: used internally for pinning a STA struct into memory |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 182 | * @flags: STA flags, see &enum ieee80211_sta_info_flags |
| 183 | * @ps_tx_buf: buffer of frames to transmit to this station |
| 184 | * when it leaves power saving state |
| 185 | * @tx_filtered: buffer of frames we already tried to transmit |
| 186 | * but were filtered by hardware due to STA having entered |
| 187 | * power saving state |
| 188 | * @rx_packets: Number of MSDUs received from this STA |
| 189 | * @rx_bytes: Number of bytes received from this STA |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 190 | * @wep_weak_iv_count: number of weak WEP IVs received from this station |
| 191 | * @last_rx: time (in jiffies) when last frame was received from this STA |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 192 | * @num_duplicates: number of duplicate frames received from this STA |
| 193 | * @rx_fragments: number of received MPDUs |
| 194 | * @rx_dropped: number of dropped MPDUs from this STA |
| 195 | * @last_signal: signal of last received frame from this STA |
| 196 | * @last_qual: qual of last received frame from this STA |
| 197 | * @last_noise: noise of last received frame from this STA |
| 198 | * @last_seq_ctrl: last received seq/frag number from this STA (per RX queue) |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 199 | * @tx_filtered_count: number of frames the hardware filtered for this STA |
| 200 | * @tx_retry_failed: number of frames that failed retry |
| 201 | * @tx_retry_count: total number of retries for frames to this STA |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 202 | * @fail_avg: moving percentage of failed MSDUs |
| 203 | * @tx_packets: number of RX/TX MSDUs |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 204 | * @tx_bytes: number of bytes transmitted to this STA |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 205 | * @tx_fragments: number of transmitted MPDUs |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 206 | * @tid_seq: per-TID sequence numbers for sending to this STA |
| 207 | * @ampdu_mlme: A-MPDU state machine state |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 208 | * @timer_to_tid: identity mapping to ID timers |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 209 | * @llid: Local link ID |
| 210 | * @plid: Peer link ID |
| 211 | * @reason: Cancel reason on PLINK_HOLDING state |
| 212 | * @plink_retries: Retries in establishment |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 213 | * @ignore_plink_timer: ignore the peer-link timer (used internally) |
| 214 | * @plink_state: peer link state |
| 215 | * @plink_timeout: timeout of peer link |
| 216 | * @plink_timer: peer link watch timer |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 217 | * @debugfs: debug filesystem info |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 218 | * @sta: station information we share with the driver |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 219 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 220 | struct sta_info { |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 221 | /* General information, mostly static */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 222 | struct list_head list; |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 223 | struct sta_info *hnext; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 224 | struct ieee80211_local *local; |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 225 | struct ieee80211_sub_if_data *sdata; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 226 | struct ieee80211_key *key; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 227 | struct rate_control_ref *rate_ctrl; |
| 228 | void *rate_ctrl_priv; |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 229 | spinlock_t lock; |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 230 | spinlock_t flaglock; |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 231 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 232 | u16 listen_interval; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 233 | |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 234 | /* |
| 235 | * for use by the internal lifetime management, |
| 236 | * see __sta_info_unlink |
| 237 | */ |
| 238 | u8 pin_status; |
| 239 | |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 240 | /* |
| 241 | * frequently updated, locked with own spinlock (flaglock), |
| 242 | * use the accessors defined below |
| 243 | */ |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 244 | u32 flags; |
| 245 | |
| 246 | /* |
| 247 | * STA powersave frame queues, no more than the internal |
| 248 | * locking required. |
| 249 | */ |
| 250 | struct sk_buff_head ps_tx_buf; |
| 251 | struct sk_buff_head tx_filtered; |
| 252 | |
| 253 | /* Updated from RX path only, no locking requirements */ |
| 254 | unsigned long rx_packets, rx_bytes; |
| 255 | unsigned long wep_weak_iv_count; |
| 256 | unsigned long last_rx; |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 257 | unsigned long num_duplicates; |
| 258 | unsigned long rx_fragments; |
| 259 | unsigned long rx_dropped; |
| 260 | int last_signal; |
| 261 | int last_qual; |
| 262 | int last_noise; |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 263 | __le16 last_seq_ctrl[NUM_RX_DATA_QUEUES]; |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 264 | |
| 265 | /* Updated from TX status path only, no locking requirements */ |
| 266 | unsigned long tx_filtered_count; |
| 267 | unsigned long tx_retry_failed, tx_retry_count; |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 268 | /* moving percentage of failed MSDUs */ |
| 269 | unsigned int fail_avg; |
| 270 | |
| 271 | /* Updated from TX path only, no locking requirements */ |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 272 | unsigned long tx_packets; |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 273 | unsigned long tx_bytes; |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 274 | unsigned long tx_fragments; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 275 | struct ieee80211_tx_rate last_tx_rate; |
Johannes Berg | f591fa5 | 2008-07-10 11:21:26 +0200 | [diff] [blame] | 276 | u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1]; |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 277 | |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 278 | /* |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 279 | * Aggregation information, locked with lock. |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 280 | */ |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 281 | struct sta_ampdu_mlme ampdu_mlme; |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 282 | u8 timer_to_tid[STA_TID_NUM]; |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 283 | |
Luis Carlos Cobo | ee38585 | 2008-02-23 15:17:11 +0100 | [diff] [blame] | 284 | #ifdef CONFIG_MAC80211_MESH |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 285 | /* |
| 286 | * Mesh peer link attributes |
| 287 | * TODO: move to a sub-structure that is referenced with pointer? |
| 288 | */ |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 289 | __le16 llid; |
| 290 | __le16 plid; |
| 291 | __le16 reason; |
| 292 | u8 plink_retries; |
Johannes Berg | 7495883 | 2008-02-25 22:17:30 +0100 | [diff] [blame] | 293 | bool ignore_plink_timer; |
Luis Carlos Cobo | ee38585 | 2008-02-23 15:17:11 +0100 | [diff] [blame] | 294 | enum plink_state plink_state; |
| 295 | u32 plink_timeout; |
| 296 | struct timer_list plink_timer; |
Luis Carlos Cobo | ee38585 | 2008-02-23 15:17:11 +0100 | [diff] [blame] | 297 | #endif |
Ron Rindjunsky | 10816d4 | 2007-11-26 16:14:30 +0200 | [diff] [blame] | 298 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 299 | #ifdef CONFIG_MAC80211_DEBUGFS |
| 300 | struct sta_info_debugfsdentries { |
| 301 | struct dentry *dir; |
| 302 | struct dentry *flags; |
| 303 | struct dentry *num_ps_buf_frames; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 304 | struct dentry *inactive_ms; |
| 305 | struct dentry *last_seq_ctrl; |
Ron Rindjunsky | eb2ba62 | 2008-01-28 14:07:20 +0200 | [diff] [blame] | 306 | struct dentry *agg_status; |
Johannes Berg | 63044e9 | 2008-10-07 12:04:29 +0200 | [diff] [blame] | 307 | bool add_has_run; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 308 | } debugfs; |
| 309 | #endif |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 310 | |
| 311 | /* keep last! */ |
| 312 | struct ieee80211_sta sta; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 313 | }; |
| 314 | |
Johannes Berg | d6d1a5a | 2008-02-25 16:24:38 +0100 | [diff] [blame] | 315 | static inline enum plink_state sta_plink_state(struct sta_info *sta) |
| 316 | { |
| 317 | #ifdef CONFIG_MAC80211_MESH |
| 318 | return sta->plink_state; |
| 319 | #endif |
Luis Carlos Cobo | b4e08ea | 2008-02-29 15:46:08 -0800 | [diff] [blame] | 320 | return PLINK_LISTEN; |
Johannes Berg | d6d1a5a | 2008-02-25 16:24:38 +0100 | [diff] [blame] | 321 | } |
| 322 | |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 323 | static inline void set_sta_flags(struct sta_info *sta, const u32 flags) |
| 324 | { |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 325 | unsigned long irqfl; |
| 326 | |
| 327 | spin_lock_irqsave(&sta->flaglock, irqfl); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 328 | sta->flags |= flags; |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 329 | spin_unlock_irqrestore(&sta->flaglock, irqfl); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 330 | } |
| 331 | |
| 332 | static inline void clear_sta_flags(struct sta_info *sta, const u32 flags) |
| 333 | { |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 334 | unsigned long irqfl; |
| 335 | |
| 336 | spin_lock_irqsave(&sta->flaglock, irqfl); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 337 | sta->flags &= ~flags; |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 338 | spin_unlock_irqrestore(&sta->flaglock, irqfl); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 339 | } |
| 340 | |
| 341 | static inline void set_and_clear_sta_flags(struct sta_info *sta, |
| 342 | const u32 set, const u32 clear) |
| 343 | { |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 344 | unsigned long irqfl; |
| 345 | |
| 346 | spin_lock_irqsave(&sta->flaglock, irqfl); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 347 | sta->flags |= set; |
| 348 | sta->flags &= ~clear; |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 349 | spin_unlock_irqrestore(&sta->flaglock, irqfl); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 350 | } |
| 351 | |
| 352 | static inline u32 test_sta_flags(struct sta_info *sta, const u32 flags) |
| 353 | { |
| 354 | u32 ret; |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 355 | unsigned long irqfl; |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 356 | |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 357 | spin_lock_irqsave(&sta->flaglock, irqfl); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 358 | ret = sta->flags & flags; |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 359 | spin_unlock_irqrestore(&sta->flaglock, irqfl); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 360 | |
| 361 | return ret; |
| 362 | } |
| 363 | |
| 364 | static inline u32 test_and_clear_sta_flags(struct sta_info *sta, |
| 365 | const u32 flags) |
| 366 | { |
| 367 | u32 ret; |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 368 | unsigned long irqfl; |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 369 | |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 370 | spin_lock_irqsave(&sta->flaglock, irqfl); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 371 | ret = sta->flags & flags; |
| 372 | sta->flags &= ~flags; |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 373 | spin_unlock_irqrestore(&sta->flaglock, irqfl); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 374 | |
| 375 | return ret; |
| 376 | } |
| 377 | |
| 378 | static inline u32 get_sta_flags(struct sta_info *sta) |
| 379 | { |
| 380 | u32 ret; |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 381 | unsigned long irqfl; |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 382 | |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 383 | spin_lock_irqsave(&sta->flaglock, irqfl); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 384 | ret = sta->flags; |
Johannes Berg | 5a9f7b0 | 2008-06-18 14:58:09 +0200 | [diff] [blame] | 385 | spin_unlock_irqrestore(&sta->flaglock, irqfl); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 386 | |
| 387 | return ret; |
| 388 | } |
| 389 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 390 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 391 | |
| 392 | #define STA_HASH_SIZE 256 |
| 393 | #define STA_HASH(sta) (sta[5]) |
| 394 | |
| 395 | |
| 396 | /* Maximum number of frames to buffer per power saving station */ |
| 397 | #define STA_MAX_TX_BUFFER 128 |
| 398 | |
| 399 | /* Minimum buffered frame expiry time. If STA uses listen interval that is |
| 400 | * smaller than this value, the minimum value here is used instead. */ |
| 401 | #define STA_TX_BUFFER_EXPIRE (10 * HZ) |
| 402 | |
| 403 | /* How often station data is cleaned up (e.g., expiration of buffered frames) |
| 404 | */ |
| 405 | #define STA_INFO_CLEANUP_INTERVAL (10 * HZ) |
| 406 | |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 407 | /* |
| 408 | * Get a STA info, must have be under RCU read lock. |
| 409 | */ |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 410 | struct sta_info *sta_info_get(struct ieee80211_local *local, const u8 *addr); |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 411 | /* |
| 412 | * Get STA info by index, BROKEN! |
| 413 | */ |
Luis Carlos Cobo | ee38585 | 2008-02-23 15:17:11 +0100 | [diff] [blame] | 414 | struct sta_info *sta_info_get_by_idx(struct ieee80211_local *local, int idx, |
| 415 | struct net_device *dev); |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 416 | /* |
Johannes Berg | 73651ee | 2008-02-25 16:27:47 +0100 | [diff] [blame] | 417 | * Create a new STA info, caller owns returned structure |
| 418 | * until sta_info_insert(). |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 419 | */ |
Johannes Berg | 73651ee | 2008-02-25 16:27:47 +0100 | [diff] [blame] | 420 | struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, |
| 421 | u8 *addr, gfp_t gfp); |
| 422 | /* |
| 423 | * Insert STA info into hash table/list, returns zero or a |
| 424 | * -EEXIST if (if the same MAC address is already present). |
| 425 | * |
| 426 | * Calling this without RCU protection makes the caller |
| 427 | * relinquish its reference to @sta. |
| 428 | */ |
| 429 | int sta_info_insert(struct sta_info *sta); |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 430 | /* |
| 431 | * Unlink a STA info from the hash table/list. |
| 432 | * This can NULL the STA pointer if somebody else |
| 433 | * has already unlinked it. |
| 434 | */ |
| 435 | void sta_info_unlink(struct sta_info **sta); |
| 436 | |
| 437 | void sta_info_destroy(struct sta_info *sta); |
| 438 | void sta_info_set_tim_bit(struct sta_info *sta); |
| 439 | void sta_info_clear_tim_bit(struct sta_info *sta); |
| 440 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 441 | void sta_info_init(struct ieee80211_local *local); |
| 442 | int sta_info_start(struct ieee80211_local *local); |
| 443 | void sta_info_stop(struct ieee80211_local *local); |
Johannes Berg | 44213b5 | 2008-02-25 16:27:49 +0100 | [diff] [blame] | 444 | int sta_info_flush(struct ieee80211_local *local, |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 445 | struct ieee80211_sub_if_data *sdata); |
Johannes Berg | dc6676b | 2008-03-31 19:23:03 +0200 | [diff] [blame] | 446 | void sta_info_flush_delayed(struct ieee80211_sub_if_data *sdata); |
Johannes Berg | 24723d1 | 2008-09-11 00:01:46 +0200 | [diff] [blame] | 447 | void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata, |
| 448 | unsigned long exp_time); |
Johannes Berg | 004c872 | 2008-02-20 11:21:35 +0100 | [diff] [blame] | 449 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 450 | #endif /* STA_INFO_H */ |