Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2002-2005, Devicescape Software, Inc. |
Johannes Berg | d98ad83 | 2014-09-03 15:24:57 +0300 | [diff] [blame] | 3 | * Copyright 2013-2014 Intel Mobile Communications GmbH |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License version 2 as |
| 7 | * published by the Free Software Foundation. |
| 8 | */ |
| 9 | |
| 10 | #ifndef STA_INFO_H |
| 11 | #define STA_INFO_H |
| 12 | |
| 13 | #include <linux/list.h> |
| 14 | #include <linux/types.h> |
| 15 | #include <linux/if_ether.h> |
Johannes Berg | af81858 | 2009-11-06 11:35:50 +0100 | [diff] [blame] | 16 | #include <linux/workqueue.h> |
Bruno Randolf | 541a45a | 2010-12-02 19:12:43 +0900 | [diff] [blame] | 17 | #include <linux/average.h> |
Felix Fietkau | 888d04d | 2012-03-01 15:22:09 +0100 | [diff] [blame] | 18 | #include <linux/etherdevice.h> |
Johannes Berg | 2c8dccc | 2008-04-08 15:14:40 -0400 | [diff] [blame] | 19 | #include "key.h" |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 20 | |
Johannes Berg | 238814f | 2008-01-28 17:19:37 +0100 | [diff] [blame] | 21 | /** |
| 22 | * enum ieee80211_sta_info_flags - Stations flags |
| 23 | * |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 24 | * These flags are used with &struct sta_info's @flags member, but |
| 25 | * only indirectly with set_sta_flag() and friends. |
Johannes Berg | 238814f | 2008-01-28 17:19:37 +0100 | [diff] [blame] | 26 | * |
| 27 | * @WLAN_STA_AUTH: Station is authenticated. |
| 28 | * @WLAN_STA_ASSOC: Station is associated. |
Johannes Berg | af81858 | 2009-11-06 11:35:50 +0100 | [diff] [blame] | 29 | * @WLAN_STA_PS_STA: Station is in power-save mode |
Johannes Berg | 238814f | 2008-01-28 17:19:37 +0100 | [diff] [blame] | 30 | * @WLAN_STA_AUTHORIZED: Station is authorized to send/receive traffic. |
| 31 | * This bit is always checked so needs to be enabled for all stations |
| 32 | * when virtual port control is not in use. |
| 33 | * @WLAN_STA_SHORT_PREAMBLE: Station is capable of receiving short-preamble |
| 34 | * frames. |
Johannes Berg | 238814f | 2008-01-28 17:19:37 +0100 | [diff] [blame] | 35 | * @WLAN_STA_WDS: Station is one of our WDS peers. |
Johannes Berg | d46e144 | 2008-02-20 23:59:33 +0100 | [diff] [blame] | 36 | * @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 37 | * IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next |
Johannes Berg | d46e144 | 2008-02-20 23:59:33 +0100 | [diff] [blame] | 38 | * frame to this station is transmitted. |
Jouni Malinen | 5394af4 | 2009-01-08 13:31:59 +0200 | [diff] [blame] | 39 | * @WLAN_STA_MFP: Management frame protection is used with this STA. |
Johannes Berg | 618f356 | 2010-04-06 11:18:46 +0200 | [diff] [blame] | 40 | * @WLAN_STA_BLOCK_BA: Used to deny ADDBA requests (both TX and RX) |
Johannes Berg | 098a607 | 2010-04-06 11:18:47 +0200 | [diff] [blame] | 41 | * during suspend/resume and station removal. |
Johannes Berg | af81858 | 2009-11-06 11:35:50 +0100 | [diff] [blame] | 42 | * @WLAN_STA_PS_DRIVER: driver requires keeping this station in |
| 43 | * power-save mode logically to flush frames that might still |
| 44 | * be in the queues |
| 45 | * @WLAN_STA_PSPOLL: Station sent PS-poll while driver was keeping |
| 46 | * station in power-save mode, reply when the driver unblocks. |
Arik Nemtsov | 941c93c | 2011-09-28 14:12:54 +0300 | [diff] [blame] | 47 | * @WLAN_STA_TDLS_PEER: Station is a TDLS peer. |
| 48 | * @WLAN_STA_TDLS_PEER_AUTH: This TDLS peer is authorized to send direct |
| 49 | * packets. This means the link is enabled. |
Arik Nemtsov | 626911c | 2014-07-17 17:14:17 +0300 | [diff] [blame] | 50 | * @WLAN_STA_TDLS_INITIATOR: We are the initiator of the TDLS link with this |
| 51 | * station. |
Johannes Berg | 47086fc | 2011-09-29 16:04:33 +0200 | [diff] [blame] | 52 | * @WLAN_STA_UAPSD: Station requested unscheduled SP while driver was |
| 53 | * keeping station in power-save mode, reply when the driver |
| 54 | * unblocks the station. |
| 55 | * @WLAN_STA_SP: Station is in a service period, so don't try to |
Johannes Berg | deeaee1 | 2011-09-29 16:04:35 +0200 | [diff] [blame] | 56 | * reply to other uAPSD trigger frames or PS-Poll. |
Johannes Berg | e7f4a94 | 2011-11-04 11:18:20 +0100 | [diff] [blame] | 57 | * @WLAN_STA_4ADDR_EVENT: 4-addr event was already sent for this frame. |
Johannes Berg | 83d5cc0 | 2012-01-12 09:31:10 +0100 | [diff] [blame] | 58 | * @WLAN_STA_INSERTED: This station is inserted into the hash table. |
Johannes Berg | e1936e9 | 2012-01-20 13:55:23 +0100 | [diff] [blame] | 59 | * @WLAN_STA_RATE_CONTROL: rate control was initialized for this station. |
Javier Cardona | dbf498f | 2012-03-31 11:31:32 -0700 | [diff] [blame] | 60 | * @WLAN_STA_TOFFSET_KNOWN: toffset calculated for this station is valid. |
Marco Porsch | 3f52b7e | 2013-01-30 18:14:08 +0100 | [diff] [blame] | 61 | * @WLAN_STA_MPSP_OWNER: local STA is owner of a mesh Peer Service Period. |
| 62 | * @WLAN_STA_MPSP_RECIPIENT: local STA is recipient of a MPSP. |
Johannes Berg | 5ac2e35 | 2014-05-27 16:32:27 +0200 | [diff] [blame] | 63 | * @WLAN_STA_PS_DELIVER: station woke up, but we're still blocking TX |
| 64 | * until pending frames are delivered |
Johannes Berg | 238814f | 2008-01-28 17:19:37 +0100 | [diff] [blame] | 65 | */ |
| 66 | enum ieee80211_sta_info_flags { |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 67 | WLAN_STA_AUTH, |
| 68 | WLAN_STA_ASSOC, |
| 69 | WLAN_STA_PS_STA, |
| 70 | WLAN_STA_AUTHORIZED, |
| 71 | WLAN_STA_SHORT_PREAMBLE, |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 72 | WLAN_STA_WDS, |
| 73 | WLAN_STA_CLEAR_PS_FILT, |
| 74 | WLAN_STA_MFP, |
| 75 | WLAN_STA_BLOCK_BA, |
| 76 | WLAN_STA_PS_DRIVER, |
| 77 | WLAN_STA_PSPOLL, |
| 78 | WLAN_STA_TDLS_PEER, |
| 79 | WLAN_STA_TDLS_PEER_AUTH, |
Arik Nemtsov | 626911c | 2014-07-17 17:14:17 +0300 | [diff] [blame] | 80 | WLAN_STA_TDLS_INITIATOR, |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 81 | WLAN_STA_UAPSD, |
| 82 | WLAN_STA_SP, |
Johannes Berg | e7f4a94 | 2011-11-04 11:18:20 +0100 | [diff] [blame] | 83 | WLAN_STA_4ADDR_EVENT, |
Johannes Berg | 83d5cc0 | 2012-01-12 09:31:10 +0100 | [diff] [blame] | 84 | WLAN_STA_INSERTED, |
Johannes Berg | e1936e9 | 2012-01-20 13:55:23 +0100 | [diff] [blame] | 85 | WLAN_STA_RATE_CONTROL, |
Javier Cardona | dbf498f | 2012-03-31 11:31:32 -0700 | [diff] [blame] | 86 | WLAN_STA_TOFFSET_KNOWN, |
Marco Porsch | 3f52b7e | 2013-01-30 18:14:08 +0100 | [diff] [blame] | 87 | WLAN_STA_MPSP_OWNER, |
| 88 | WLAN_STA_MPSP_RECIPIENT, |
Johannes Berg | 5ac2e35 | 2014-05-27 16:32:27 +0200 | [diff] [blame] | 89 | WLAN_STA_PS_DELIVER, |
Johannes Berg | 238814f | 2008-01-28 17:19:37 +0100 | [diff] [blame] | 90 | }; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 91 | |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 92 | #define ADDBA_RESP_INTERVAL HZ |
Nikolay Martynov | 84381b4 | 2011-12-17 19:39:35 -0500 | [diff] [blame] | 93 | #define HT_AGG_MAX_RETRIES 15 |
| 94 | #define HT_AGG_BURST_RETRIES 3 |
| 95 | #define HT_AGG_RETRIES_PERIOD (15 * HZ) |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 96 | |
Johannes Berg | a622ab7 | 2010-06-10 10:21:39 +0200 | [diff] [blame] | 97 | #define HT_AGG_STATE_DRV_READY 0 |
| 98 | #define HT_AGG_STATE_RESPONSE_RECEIVED 1 |
| 99 | #define HT_AGG_STATE_OPERATIONAL 2 |
| 100 | #define HT_AGG_STATE_STOPPING 3 |
Johannes Berg | 0ab3370 | 2010-06-10 10:21:42 +0200 | [diff] [blame] | 101 | #define HT_AGG_STATE_WANT_START 4 |
| 102 | #define HT_AGG_STATE_WANT_STOP 5 |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 103 | |
Johannes Berg | c82c4a8 | 2012-07-18 13:31:31 +0200 | [diff] [blame] | 104 | enum ieee80211_agg_stop_reason { |
| 105 | AGG_STOP_DECLINED, |
| 106 | AGG_STOP_LOCAL_REQUEST, |
| 107 | AGG_STOP_PEER_REQUEST, |
| 108 | AGG_STOP_DESTROY_STA, |
| 109 | }; |
| 110 | |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 111 | /** |
| 112 | * struct tid_ampdu_tx - TID aggregation information (Tx). |
| 113 | * |
Johannes Berg | a622ab7 | 2010-06-10 10:21:39 +0200 | [diff] [blame] | 114 | * @rcu_head: rcu head for freeing structure |
Nikolay Martynov | 285fa69 | 2011-11-22 21:50:28 -0500 | [diff] [blame] | 115 | * @session_timer: check if we keep Tx-ing on the TID (by timeout value) |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 116 | * @addba_resp_timer: timer for peer's response to addba request |
Johannes Berg | cd8ffc8 | 2009-03-23 17:28:41 +0100 | [diff] [blame] | 117 | * @pending: pending frames queue -- use sta's spinlock to protect |
Ron Rindjunsky | cee24a3 | 2008-03-26 20:36:03 +0200 | [diff] [blame] | 118 | * @dialog_token: dialog token for aggregation session |
Sujith Manoharan | bd2ce6e | 2010-12-15 07:47:10 +0530 | [diff] [blame] | 119 | * @timeout: session timeout value to be filled in ADDBA requests |
Johannes Berg | a622ab7 | 2010-06-10 10:21:39 +0200 | [diff] [blame] | 120 | * @state: session state (see above) |
Felix Fietkau | 12d3952f | 2012-03-18 22:58:06 +0100 | [diff] [blame] | 121 | * @last_tx: jiffies of last tx activity |
Johannes Berg | a622ab7 | 2010-06-10 10:21:39 +0200 | [diff] [blame] | 122 | * @stop_initiator: initiator of a session stop |
Johannes Berg | 53f73c0 | 2010-10-05 19:37:40 +0200 | [diff] [blame] | 123 | * @tx_stop: TX DelBA frame when stopping |
Johannes Berg | 0b01f03 | 2011-01-18 13:51:05 +0100 | [diff] [blame] | 124 | * @buf_size: reorder buffer size at receiver |
Felix Fietkau | f0425be | 2011-08-28 21:11:01 +0200 | [diff] [blame] | 125 | * @failed_bar_ssn: ssn of the last failed BAR tx attempt |
| 126 | * @bar_pending: BAR needs to be re-sent |
Johannes Berg | a622ab7 | 2010-06-10 10:21:39 +0200 | [diff] [blame] | 127 | * |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 128 | * This structure's lifetime is managed by RCU, assignments to |
| 129 | * the array holding it must hold the aggregation mutex. |
| 130 | * |
| 131 | * The TX path can access it under RCU lock-free if, and |
| 132 | * only if, the state has the flag %HT_AGG_STATE_OPERATIONAL |
| 133 | * set. Otherwise, the TX path must also acquire the spinlock |
| 134 | * and re-check the state, see comments in the tx code |
| 135 | * touching it. |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 136 | */ |
| 137 | struct tid_ampdu_tx { |
Johannes Berg | a622ab7 | 2010-06-10 10:21:39 +0200 | [diff] [blame] | 138 | struct rcu_head rcu_head; |
Nikolay Martynov | 285fa69 | 2011-11-22 21:50:28 -0500 | [diff] [blame] | 139 | struct timer_list session_timer; |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 140 | struct timer_list addba_resp_timer; |
Johannes Berg | cd8ffc8 | 2009-03-23 17:28:41 +0100 | [diff] [blame] | 141 | struct sk_buff_head pending; |
Johannes Berg | a622ab7 | 2010-06-10 10:21:39 +0200 | [diff] [blame] | 142 | unsigned long state; |
Felix Fietkau | 12d3952f | 2012-03-18 22:58:06 +0100 | [diff] [blame] | 143 | unsigned long last_tx; |
Sujith Manoharan | bd2ce6e | 2010-12-15 07:47:10 +0530 | [diff] [blame] | 144 | u16 timeout; |
Ron Rindjunsky | cee24a3 | 2008-03-26 20:36:03 +0200 | [diff] [blame] | 145 | u8 dialog_token; |
Johannes Berg | a622ab7 | 2010-06-10 10:21:39 +0200 | [diff] [blame] | 146 | u8 stop_initiator; |
Johannes Berg | 53f73c0 | 2010-10-05 19:37:40 +0200 | [diff] [blame] | 147 | bool tx_stop; |
Johannes Berg | 0b01f03 | 2011-01-18 13:51:05 +0100 | [diff] [blame] | 148 | u8 buf_size; |
Felix Fietkau | f0425be | 2011-08-28 21:11:01 +0200 | [diff] [blame] | 149 | |
| 150 | u16 failed_bar_ssn; |
| 151 | bool bar_pending; |
Ron Rindjunsky | 80656c2 | 2008-01-28 14:07:16 +0200 | [diff] [blame] | 152 | }; |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 153 | |
| 154 | /** |
| 155 | * struct tid_ampdu_rx - TID aggregation information (Rx). |
| 156 | * |
Michal Kazior | 83eb935 | 2014-07-16 12:09:31 +0200 | [diff] [blame] | 157 | * @reorder_buf: buffer to reorder incoming aggregated MPDUs. An MPDU may be an |
| 158 | * A-MSDU with individually reported subframes. |
Jouni Malinen | 4d050f1 | 2009-05-05 20:35:14 +0300 | [diff] [blame] | 159 | * @reorder_time: jiffies when skb was added |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 160 | * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value) |
Christian Lamparter | 2bff8eb | 2010-08-05 01:36:41 +0200 | [diff] [blame] | 161 | * @reorder_timer: releases expired frames from the reorder buffer. |
Felix Fietkau | 12d3952f | 2012-03-18 22:58:06 +0100 | [diff] [blame] | 162 | * @last_rx: jiffies of last rx activity |
Johannes Berg | 056cdd5 | 2008-03-26 23:21:47 +0100 | [diff] [blame] | 163 | * @head_seq_num: head sequence number in reordering buffer. |
| 164 | * @stored_mpdu_num: number of MPDUs in reordering buffer |
Ron Rindjunsky | cee24a3 | 2008-03-26 20:36:03 +0200 | [diff] [blame] | 165 | * @ssn: Starting Sequence Number expected to be aggregated. |
| 166 | * @buf_size: buffer size for incoming A-MPDUs |
Johannes Berg | 20ad19d | 2009-02-10 21:25:45 +0100 | [diff] [blame] | 167 | * @timeout: reset timer value (in TUs). |
Ron Rindjunsky | cee24a3 | 2008-03-26 20:36:03 +0200 | [diff] [blame] | 168 | * @dialog_token: dialog token for aggregation session |
Johannes Berg | a87f736 | 2010-06-10 10:21:38 +0200 | [diff] [blame] | 169 | * @rcu_head: RCU head used for freeing this struct |
Christian Lamparter | 2bff8eb | 2010-08-05 01:36:41 +0200 | [diff] [blame] | 170 | * @reorder_lock: serializes access to reorder buffer, see below. |
Michal Kazior | 4549cf2 | 2014-09-02 14:05:10 +0200 | [diff] [blame] | 171 | * @auto_seq: used for offloaded BA sessions to automatically pick head_seq_and |
| 172 | * and ssn. |
Johannes Berg | a87f736 | 2010-06-10 10:21:38 +0200 | [diff] [blame] | 173 | * |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 174 | * This structure's lifetime is managed by RCU, assignments to |
| 175 | * the array holding it must hold the aggregation mutex. |
Christian Lamparter | 2bff8eb | 2010-08-05 01:36:41 +0200 | [diff] [blame] | 176 | * |
Johannes Berg | dd31857 | 2010-11-29 11:09:16 +0100 | [diff] [blame] | 177 | * The @reorder_lock is used to protect the members of this |
| 178 | * struct, except for @timeout, @buf_size and @dialog_token, |
| 179 | * which are constant across the lifetime of the struct (the |
| 180 | * dialog token being used only for debugging). |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 181 | */ |
| 182 | struct tid_ampdu_rx { |
Johannes Berg | a87f736 | 2010-06-10 10:21:38 +0200 | [diff] [blame] | 183 | struct rcu_head rcu_head; |
Christian Lamparter | 2bff8eb | 2010-08-05 01:36:41 +0200 | [diff] [blame] | 184 | spinlock_t reorder_lock; |
Michal Kazior | 83eb935 | 2014-07-16 12:09:31 +0200 | [diff] [blame] | 185 | struct sk_buff_head *reorder_buf; |
Jouni Malinen | 4d050f1 | 2009-05-05 20:35:14 +0300 | [diff] [blame] | 186 | unsigned long *reorder_time; |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 187 | struct timer_list session_timer; |
Christian Lamparter | 2bff8eb | 2010-08-05 01:36:41 +0200 | [diff] [blame] | 188 | struct timer_list reorder_timer; |
Felix Fietkau | 12d3952f | 2012-03-18 22:58:06 +0100 | [diff] [blame] | 189 | unsigned long last_rx; |
Johannes Berg | 056cdd5 | 2008-03-26 23:21:47 +0100 | [diff] [blame] | 190 | u16 head_seq_num; |
| 191 | u16 stored_mpdu_num; |
Ron Rindjunsky | cee24a3 | 2008-03-26 20:36:03 +0200 | [diff] [blame] | 192 | u16 ssn; |
| 193 | u16 buf_size; |
| 194 | u16 timeout; |
| 195 | u8 dialog_token; |
Michal Kazior | 4549cf2 | 2014-09-02 14:05:10 +0200 | [diff] [blame] | 196 | bool auto_seq; |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 197 | }; |
| 198 | |
Luis Carlos Cobo | b4e08ea | 2008-02-29 15:46:08 -0800 | [diff] [blame] | 199 | /** |
Johannes Berg | fcea600 | 2010-05-31 11:40:23 +0200 | [diff] [blame] | 200 | * struct sta_ampdu_mlme - STA aggregation information. |
| 201 | * |
Johannes Berg | a87f736 | 2010-06-10 10:21:38 +0200 | [diff] [blame] | 202 | * @tid_rx: aggregation info for Rx per TID -- RCU protected |
Johannes Berg | fcea600 | 2010-05-31 11:40:23 +0200 | [diff] [blame] | 203 | * @tid_tx: aggregation info for Tx per TID |
Johannes Berg | ec034b2 | 2011-05-13 13:35:40 +0200 | [diff] [blame] | 204 | * @tid_start_tx: sessions where start was requested |
Johannes Berg | fcea600 | 2010-05-31 11:40:23 +0200 | [diff] [blame] | 205 | * @addba_req_num: number of times addBA request has been sent. |
Nikolay Martynov | 84381b4 | 2011-12-17 19:39:35 -0500 | [diff] [blame] | 206 | * @last_addba_req_time: timestamp of the last addBA request. |
Johannes Berg | fcea600 | 2010-05-31 11:40:23 +0200 | [diff] [blame] | 207 | * @dialog_token_allocator: dialog token enumerator for each new session; |
Johannes Berg | 0ab3370 | 2010-06-10 10:21:42 +0200 | [diff] [blame] | 208 | * @work: work struct for starting/stopping aggregation |
Johannes Berg | 7c3b1dd | 2010-06-10 10:21:44 +0200 | [diff] [blame] | 209 | * @tid_rx_timer_expired: bitmap indicating on which TIDs the |
| 210 | * RX timer expired until the work for it runs |
Shahar Levi | f41ccd7 | 2011-05-22 16:10:21 +0300 | [diff] [blame] | 211 | * @tid_rx_stop_requested: bitmap indicating which BA sessions per TID the |
| 212 | * driver requested to close until the work for it runs |
Johannes Berg | a93e364 | 2010-06-10 10:21:46 +0200 | [diff] [blame] | 213 | * @mtx: mutex to protect all TX data (except non-NULL assignments |
| 214 | * to tid_tx[idx], which are protected by the sta spinlock) |
Ben Greear | e562078 | 2013-06-12 14:08:44 -0700 | [diff] [blame] | 215 | * tid_start_tx is also protected by sta->lock. |
Johannes Berg | fcea600 | 2010-05-31 11:40:23 +0200 | [diff] [blame] | 216 | */ |
| 217 | struct sta_ampdu_mlme { |
Johannes Berg | a93e364 | 2010-06-10 10:21:46 +0200 | [diff] [blame] | 218 | struct mutex mtx; |
Johannes Berg | fcea600 | 2010-05-31 11:40:23 +0200 | [diff] [blame] | 219 | /* rx */ |
Johannes Berg | 5a306f5 | 2012-11-14 23:22:21 +0100 | [diff] [blame] | 220 | struct tid_ampdu_rx __rcu *tid_rx[IEEE80211_NUM_TIDS]; |
| 221 | unsigned long tid_rx_timer_expired[BITS_TO_LONGS(IEEE80211_NUM_TIDS)]; |
| 222 | unsigned long tid_rx_stop_requested[BITS_TO_LONGS(IEEE80211_NUM_TIDS)]; |
Johannes Berg | fcea600 | 2010-05-31 11:40:23 +0200 | [diff] [blame] | 223 | /* tx */ |
Johannes Berg | 0ab3370 | 2010-06-10 10:21:42 +0200 | [diff] [blame] | 224 | struct work_struct work; |
Johannes Berg | 5a306f5 | 2012-11-14 23:22:21 +0100 | [diff] [blame] | 225 | struct tid_ampdu_tx __rcu *tid_tx[IEEE80211_NUM_TIDS]; |
| 226 | struct tid_ampdu_tx *tid_start_tx[IEEE80211_NUM_TIDS]; |
| 227 | unsigned long last_addba_req_time[IEEE80211_NUM_TIDS]; |
| 228 | u8 addba_req_num[IEEE80211_NUM_TIDS]; |
Johannes Berg | fcea600 | 2010-05-31 11:40:23 +0200 | [diff] [blame] | 229 | u8 dialog_token_allocator; |
| 230 | }; |
| 231 | |
Matti Gottlieb | ad38bfc | 2013-11-18 19:06:45 +0200 | [diff] [blame] | 232 | /* |
| 233 | * struct ieee80211_tx_latency_stat - Tx latency statistics |
| 234 | * |
| 235 | * Measures TX latency and jitter for a station per TID. |
| 236 | * |
| 237 | * @max: worst case latency |
| 238 | * @sum: sum of all latencies |
| 239 | * @counter: amount of Tx frames sent from interface |
| 240 | * @bins: each bin counts how many frames transmitted within a certain |
| 241 | * latency range. when disabled it is NULL. |
| 242 | * @bin_count: amount of bins. |
| 243 | */ |
| 244 | struct ieee80211_tx_latency_stat { |
| 245 | u32 max; |
| 246 | u32 sum; |
| 247 | u32 counter; |
| 248 | u32 *bins; |
| 249 | u32 bin_count; |
| 250 | }; |
Johannes Berg | fcea600 | 2010-05-31 11:40:23 +0200 | [diff] [blame] | 251 | |
| 252 | /** |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 253 | * struct sta_info - STA information |
| 254 | * |
| 255 | * This structure collects information about a station that |
| 256 | * mac80211 is communicating with. |
| 257 | * |
| 258 | * @list: global linked list entry |
Johannes Berg | d778207 | 2013-12-04 23:12:31 +0100 | [diff] [blame] | 259 | * @free_list: list entry for keeping track of stations to free |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 260 | * @hnext: hash table linked list pointer |
| 261 | * @local: pointer to the global information |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 262 | * @sdata: virtual interface this station belongs to |
Max Stepanov | 2475b1cc | 2013-03-24 14:23:27 +0200 | [diff] [blame] | 263 | * @ptk: peer keys negotiated with this station, if any |
| 264 | * @ptk_idx: last installed peer key index |
Johannes Berg | e31b821 | 2010-10-05 19:39:30 +0200 | [diff] [blame] | 265 | * @gtk: group keys negotiated with this station, if any |
Max Stepanov | 2475b1cc | 2013-03-24 14:23:27 +0200 | [diff] [blame] | 266 | * @gtk_idx: last installed group key index |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 267 | * @rate_ctrl: rate control algorithm reference |
| 268 | * @rate_ctrl_priv: rate control private per-STA pointer |
| 269 | * @last_tx_rate: rate used for last transmit, to report to userspace as |
| 270 | * "the" transmit rate |
Felix Fietkau | 3af6334 | 2011-02-27 22:08:01 +0100 | [diff] [blame] | 271 | * @last_rx_rate_idx: rx status rate index of the last data packet |
| 272 | * @last_rx_rate_flag: rx status flag of the last data packet |
Emmanuel Grumbach | 1b8d242 | 2014-02-05 16:37:11 +0200 | [diff] [blame] | 273 | * @last_rx_rate_vht_flag: rx status vht flag of the last data packet |
Johannes Berg | 5614618 | 2012-11-09 15:07:02 +0100 | [diff] [blame] | 274 | * @last_rx_rate_vht_nss: rx status nss of last data packet |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 275 | * @lock: used for locking all fields that require locking, see comments |
| 276 | * in the header file. |
Johannes Berg | 5ac2e35 | 2014-05-27 16:32:27 +0200 | [diff] [blame] | 277 | * @drv_deliver_wk: used for delivering frames after driver PS unblocking |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 278 | * @listen_interval: listen interval of this station, when we're acting as AP |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 279 | * @_flags: STA flags, see &enum ieee80211_sta_info_flags, do not use directly |
Emmanuel Grumbach | 1d147bf | 2014-02-20 09:22:11 +0200 | [diff] [blame] | 280 | * @ps_lock: used for powersave (when mac80211 is the AP) related locking |
Johannes Berg | 948d887 | 2011-09-29 16:04:29 +0200 | [diff] [blame] | 281 | * @ps_tx_buf: buffers (per AC) of frames to transmit to this station |
| 282 | * when it leaves power saving state or polls |
| 283 | * @tx_filtered: buffers (per AC) of frames we already tried to |
| 284 | * transmit but were filtered by hardware due to STA having |
| 285 | * entered power saving state, these are also delivered to |
| 286 | * the station when it leaves powersave or polls for frames |
| 287 | * @driver_buffered_tids: bitmap of TIDs the driver has data buffered on |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 288 | * @rx_packets: Number of MSDUs received from this STA |
| 289 | * @rx_bytes: Number of bytes received from this STA |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 290 | * @last_rx: time (in jiffies) when last frame was received from this STA |
Mohammed Shafi Shajakhan | ebe27c9 | 2011-04-08 21:24:24 +0530 | [diff] [blame] | 291 | * @last_connected: time (in seconds) when a station got connected |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 292 | * @num_duplicates: number of duplicate frames received from this STA |
| 293 | * @rx_fragments: number of received MPDUs |
| 294 | * @rx_dropped: number of dropped MPDUs from this STA |
| 295 | * @last_signal: signal of last received frame from this STA |
Bruno Randolf | 541a45a | 2010-12-02 19:12:43 +0900 | [diff] [blame] | 296 | * @avg_signal: moving average of signal of received frames from this STA |
Saravana | db94357 | 2012-11-28 18:27:09 +0530 | [diff] [blame] | 297 | * @last_ack_signal: signal of last received Ack frame from this STA |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 298 | * @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] | 299 | * @tx_filtered_count: number of frames the hardware filtered for this STA |
| 300 | * @tx_retry_failed: number of frames that failed retry |
| 301 | * @tx_retry_count: total number of retries for frames to this STA |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 302 | * @fail_avg: moving percentage of failed MSDUs |
| 303 | * @tx_packets: number of RX/TX MSDUs |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 304 | * @tx_bytes: number of bytes transmitted to this STA |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 305 | * @tx_fragments: number of transmitted MPDUs |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 306 | * @tid_seq: per-TID sequence numbers for sending to this STA |
| 307 | * @ampdu_mlme: A-MPDU state machine state |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 308 | * @timer_to_tid: identity mapping to ID timers |
Matti Gottlieb | ad38bfc | 2013-11-18 19:06:45 +0200 | [diff] [blame] | 309 | * @tx_lat: Tx latency statistics |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 310 | * @llid: Local link ID |
| 311 | * @plid: Peer link ID |
| 312 | * @reason: Cancel reason on PLINK_HOLDING state |
| 313 | * @plink_retries: Retries in establishment |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 314 | * @plink_state: peer link state |
| 315 | * @plink_timeout: timeout of peer link |
| 316 | * @plink_timer: peer link watch timer |
Javier Cardona | dbf498f | 2012-03-31 11:31:32 -0700 | [diff] [blame] | 317 | * @t_offset: timing offset relative to this host |
Ashok Nagarajan | 1dd4558 | 2012-06-11 10:23:35 -0700 | [diff] [blame] | 318 | * @t_offset_setpoint: reference timing offset of this sta to be used when |
| 319 | * calculating clockdrift |
Marco Porsch | 3f52b7e | 2013-01-30 18:14:08 +0100 | [diff] [blame] | 320 | * @local_pm: local link-specific power save mode |
| 321 | * @peer_pm: peer-specific power save mode towards local STA |
| 322 | * @nonpeer_pm: STA power save mode towards non-peer neighbors |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 323 | * @debugfs: debug filesystem info |
Johannes Berg | af81858 | 2009-11-06 11:35:50 +0100 | [diff] [blame] | 324 | * @dead: set to true when sta is unlinked |
Johannes Berg | 34e8950 | 2010-02-03 13:59:58 +0100 | [diff] [blame] | 325 | * @uploaded: set to true when sta is uploaded to the driver |
Johannes Berg | 99ba2a1 | 2010-11-24 08:10:06 +0100 | [diff] [blame] | 326 | * @lost_packets: number of consecutive lost packets |
Guy Eilam | 2a33bee | 2011-08-17 15:18:15 +0300 | [diff] [blame] | 327 | * @sta: station information we share with the driver |
Johannes Berg | d9a7ddb | 2011-12-14 12:35:30 +0100 | [diff] [blame] | 328 | * @sta_state: duplicates information about station state (for debug) |
Paul Stewart | a85e1d5 | 2011-12-09 11:01:49 -0800 | [diff] [blame] | 329 | * @beacon_loss_count: number of times beacon loss has triggered |
Johannes Berg | 077f897 | 2013-02-08 09:06:36 +0100 | [diff] [blame] | 330 | * @rcu_head: RCU head used for freeing this station struct |
Johannes Berg | 0af83d3 | 2012-12-27 18:55:36 +0100 | [diff] [blame] | 331 | * @cur_max_bandwidth: maximum bandwidth to use for TX to the station, |
| 332 | * taken from HT/VHT capabilities or VHT operating mode notification |
Johannes Berg | 780b40d | 2013-06-05 09:32:50 +0200 | [diff] [blame] | 333 | * @chains: chains ever used for RX from this station |
| 334 | * @chain_signal_last: last signal (per chain) |
| 335 | * @chain_signal_avg: signal average (per chain) |
Emmanuel Grumbach | 687da13 | 2013-10-01 16:45:43 +0300 | [diff] [blame] | 336 | * @known_smps_mode: the smps_mode the client thinks we are in. Relevant for |
| 337 | * AP only. |
Max Stepanov | 2475b1cc | 2013-03-24 14:23:27 +0200 | [diff] [blame] | 338 | * @cipher_scheme: optional cipher scheme for this station |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 339 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 340 | struct sta_info { |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 341 | /* General information, mostly static */ |
Johannes Berg | d778207 | 2013-12-04 23:12:31 +0100 | [diff] [blame] | 342 | struct list_head list, free_list; |
Eliad Peller | b22cfcf | 2012-09-09 14:43:51 +0300 | [diff] [blame] | 343 | struct rcu_head rcu_head; |
Johannes Berg | 40b275b | 2011-05-13 14:15:49 +0200 | [diff] [blame] | 344 | struct sta_info __rcu *hnext; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 345 | struct ieee80211_local *local; |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 346 | struct ieee80211_sub_if_data *sdata; |
Johannes Berg | 40b275b | 2011-05-13 14:15:49 +0200 | [diff] [blame] | 347 | struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS]; |
Max Stepanov | 2475b1cc | 2013-03-24 14:23:27 +0200 | [diff] [blame] | 348 | struct ieee80211_key __rcu *ptk[NUM_DEFAULT_KEYS]; |
| 349 | u8 gtk_idx; |
| 350 | u8 ptk_idx; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 351 | struct rate_control_ref *rate_ctrl; |
| 352 | void *rate_ctrl_priv; |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 353 | spinlock_t lock; |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 354 | |
Johannes Berg | 5ac2e35 | 2014-05-27 16:32:27 +0200 | [diff] [blame] | 355 | struct work_struct drv_deliver_wk; |
Johannes Berg | af81858 | 2009-11-06 11:35:50 +0100 | [diff] [blame] | 356 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 357 | u16 listen_interval; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 358 | |
Johannes Berg | af81858 | 2009-11-06 11:35:50 +0100 | [diff] [blame] | 359 | bool dead; |
| 360 | |
Johannes Berg | 34e8950 | 2010-02-03 13:59:58 +0100 | [diff] [blame] | 361 | bool uploaded; |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 362 | |
Johannes Berg | d9a7ddb | 2011-12-14 12:35:30 +0100 | [diff] [blame] | 363 | enum ieee80211_sta_state sta_state; |
| 364 | |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 365 | /* use the accessors defined below */ |
| 366 | unsigned long _flags; |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 367 | |
Emmanuel Grumbach | 1d147bf | 2014-02-20 09:22:11 +0200 | [diff] [blame] | 368 | /* STA powersave lock and frame queues */ |
| 369 | spinlock_t ps_lock; |
Johannes Berg | 948d887 | 2011-09-29 16:04:29 +0200 | [diff] [blame] | 370 | struct sk_buff_head ps_tx_buf[IEEE80211_NUM_ACS]; |
| 371 | struct sk_buff_head tx_filtered[IEEE80211_NUM_ACS]; |
| 372 | unsigned long driver_buffered_tids; |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 373 | |
| 374 | /* Updated from RX path only, no locking requirements */ |
Johannes Berg | 560d268 | 2013-02-05 10:55:21 +0100 | [diff] [blame] | 375 | unsigned long rx_packets; |
| 376 | u64 rx_bytes; |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 377 | unsigned long last_rx; |
Mohammed Shafi Shajakhan | ebe27c9 | 2011-04-08 21:24:24 +0530 | [diff] [blame] | 378 | long last_connected; |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 379 | unsigned long num_duplicates; |
| 380 | unsigned long rx_fragments; |
| 381 | unsigned long rx_dropped; |
| 382 | int last_signal; |
Bruno Randolf | 541a45a | 2010-12-02 19:12:43 +0900 | [diff] [blame] | 383 | struct ewma avg_signal; |
Saravana | db94357 | 2012-11-28 18:27:09 +0530 | [diff] [blame] | 384 | int last_ack_signal; |
Felix Fietkau | ef0621e | 2013-04-22 16:29:31 +0200 | [diff] [blame] | 385 | |
| 386 | u8 chains; |
| 387 | s8 chain_signal_last[IEEE80211_MAX_CHAINS]; |
| 388 | struct ewma chain_signal_avg[IEEE80211_MAX_CHAINS]; |
| 389 | |
Johannes Berg | 9e26297 | 2011-07-07 18:45:03 +0200 | [diff] [blame] | 390 | /* Plus 1 for non-QoS frames */ |
Johannes Berg | 5a306f5 | 2012-11-14 23:22:21 +0100 | [diff] [blame] | 391 | __le16 last_seq_ctrl[IEEE80211_NUM_TIDS + 1]; |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 392 | |
| 393 | /* Updated from TX status path only, no locking requirements */ |
| 394 | unsigned long tx_filtered_count; |
| 395 | unsigned long tx_retry_failed, tx_retry_count; |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 396 | /* moving percentage of failed MSDUs */ |
| 397 | unsigned int fail_avg; |
| 398 | |
| 399 | /* Updated from TX path only, no locking requirements */ |
Johannes Berg | 560d268 | 2013-02-05 10:55:21 +0100 | [diff] [blame] | 400 | u32 tx_fragments; |
| 401 | u64 tx_packets[IEEE80211_NUM_ACS]; |
| 402 | u64 tx_bytes[IEEE80211_NUM_ACS]; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 403 | struct ieee80211_tx_rate last_tx_rate; |
Felix Fietkau | 3af6334 | 2011-02-27 22:08:01 +0100 | [diff] [blame] | 404 | int last_rx_rate_idx; |
Johannes Berg | 5614618 | 2012-11-09 15:07:02 +0100 | [diff] [blame] | 405 | u32 last_rx_rate_flag; |
Emmanuel Grumbach | 1b8d242 | 2014-02-05 16:37:11 +0200 | [diff] [blame] | 406 | u32 last_rx_rate_vht_flag; |
Johannes Berg | 5614618 | 2012-11-09 15:07:02 +0100 | [diff] [blame] | 407 | u8 last_rx_rate_vht_nss; |
Johannes Berg | f591fa5 | 2008-07-10 11:21:26 +0200 | [diff] [blame] | 408 | u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1]; |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 409 | |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 410 | /* |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 411 | * Aggregation information, locked with lock. |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 412 | */ |
Ron Rindjunsky | 5aae288 | 2007-12-25 17:00:32 +0200 | [diff] [blame] | 413 | struct sta_ampdu_mlme ampdu_mlme; |
Johannes Berg | 5a306f5 | 2012-11-14 23:22:21 +0100 | [diff] [blame] | 414 | u8 timer_to_tid[IEEE80211_NUM_TIDS]; |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 415 | |
Matti Gottlieb | ad38bfc | 2013-11-18 19:06:45 +0200 | [diff] [blame] | 416 | struct ieee80211_tx_latency_stat *tx_lat; |
| 417 | |
Luis Carlos Cobo | ee38585 | 2008-02-23 15:17:11 +0100 | [diff] [blame] | 418 | #ifdef CONFIG_MAC80211_MESH |
Johannes Berg | 693b1bb | 2008-02-25 16:27:48 +0100 | [diff] [blame] | 419 | /* |
| 420 | * Mesh peer link attributes |
| 421 | * TODO: move to a sub-structure that is referenced with pointer? |
| 422 | */ |
Chun-Yeow Yeoh | 6f101ef | 2013-11-13 15:43:03 +0800 | [diff] [blame] | 423 | u16 llid; |
| 424 | u16 plid; |
| 425 | u16 reason; |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 426 | u8 plink_retries; |
Javier Cardona | 57cf804 | 2011-05-13 10:45:43 -0700 | [diff] [blame] | 427 | enum nl80211_plink_state plink_state; |
Luis Carlos Cobo | ee38585 | 2008-02-23 15:17:11 +0100 | [diff] [blame] | 428 | u32 plink_timeout; |
| 429 | struct timer_list plink_timer; |
Javier Cardona | dbf498f | 2012-03-31 11:31:32 -0700 | [diff] [blame] | 430 | s64 t_offset; |
| 431 | s64 t_offset_setpoint; |
Marco Porsch | 3f52b7e | 2013-01-30 18:14:08 +0100 | [diff] [blame] | 432 | /* mesh power save */ |
| 433 | enum nl80211_mesh_power_mode local_pm; |
| 434 | enum nl80211_mesh_power_mode peer_pm; |
| 435 | enum nl80211_mesh_power_mode nonpeer_pm; |
Luis Carlos Cobo | ee38585 | 2008-02-23 15:17:11 +0100 | [diff] [blame] | 436 | #endif |
Ron Rindjunsky | 10816d4 | 2007-11-26 16:14:30 +0200 | [diff] [blame] | 437 | |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 438 | #ifdef CONFIG_MAC80211_DEBUGFS |
| 439 | struct sta_info_debugfsdentries { |
| 440 | struct dentry *dir; |
Johannes Berg | 63044e9 | 2008-10-07 12:04:29 +0200 | [diff] [blame] | 441 | bool add_has_run; |
Jiri Benc | e9f207f | 2007-05-05 11:46:38 -0700 | [diff] [blame] | 442 | } debugfs; |
| 443 | #endif |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 444 | |
Johannes Berg | 0af83d3 | 2012-12-27 18:55:36 +0100 | [diff] [blame] | 445 | enum ieee80211_sta_rx_bandwidth cur_max_bandwidth; |
| 446 | |
Johannes Berg | 99ba2a1 | 2010-11-24 08:10:06 +0100 | [diff] [blame] | 447 | unsigned int lost_packets; |
Paul Stewart | a85e1d5 | 2011-12-09 11:01:49 -0800 | [diff] [blame] | 448 | unsigned int beacon_loss_count; |
Johannes Berg | 99ba2a1 | 2010-11-24 08:10:06 +0100 | [diff] [blame] | 449 | |
Emmanuel Grumbach | 687da13 | 2013-10-01 16:45:43 +0300 | [diff] [blame] | 450 | enum ieee80211_smps_mode known_smps_mode; |
Max Stepanov | 2475b1cc | 2013-03-24 14:23:27 +0200 | [diff] [blame] | 451 | const struct ieee80211_cipher_scheme *cipher_scheme; |
Emmanuel Grumbach | 687da13 | 2013-10-01 16:45:43 +0300 | [diff] [blame] | 452 | |
Liad Kaufman | 9d58f25 | 2014-09-04 08:28:40 +0300 | [diff] [blame] | 453 | /* TDLS timeout data */ |
| 454 | unsigned long last_tdls_pkt_time; |
| 455 | |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 456 | /* keep last! */ |
| 457 | struct ieee80211_sta sta; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 458 | }; |
| 459 | |
Javier Cardona | 57cf804 | 2011-05-13 10:45:43 -0700 | [diff] [blame] | 460 | static inline enum nl80211_plink_state sta_plink_state(struct sta_info *sta) |
Johannes Berg | d6d1a5a | 2008-02-25 16:24:38 +0100 | [diff] [blame] | 461 | { |
| 462 | #ifdef CONFIG_MAC80211_MESH |
| 463 | return sta->plink_state; |
| 464 | #endif |
Javier Cardona | 57cf804 | 2011-05-13 10:45:43 -0700 | [diff] [blame] | 465 | return NL80211_PLINK_LISTEN; |
Johannes Berg | d6d1a5a | 2008-02-25 16:24:38 +0100 | [diff] [blame] | 466 | } |
| 467 | |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 468 | static inline void set_sta_flag(struct sta_info *sta, |
| 469 | enum ieee80211_sta_info_flags flag) |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 470 | { |
Johannes Berg | d9a7ddb | 2011-12-14 12:35:30 +0100 | [diff] [blame] | 471 | WARN_ON(flag == WLAN_STA_AUTH || |
| 472 | flag == WLAN_STA_ASSOC || |
| 473 | flag == WLAN_STA_AUTHORIZED); |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 474 | set_bit(flag, &sta->_flags); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 475 | } |
| 476 | |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 477 | static inline void clear_sta_flag(struct sta_info *sta, |
| 478 | enum ieee80211_sta_info_flags flag) |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 479 | { |
Johannes Berg | d9a7ddb | 2011-12-14 12:35:30 +0100 | [diff] [blame] | 480 | WARN_ON(flag == WLAN_STA_AUTH || |
| 481 | flag == WLAN_STA_ASSOC || |
| 482 | flag == WLAN_STA_AUTHORIZED); |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 483 | clear_bit(flag, &sta->_flags); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 484 | } |
| 485 | |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 486 | static inline int test_sta_flag(struct sta_info *sta, |
| 487 | enum ieee80211_sta_info_flags flag) |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 488 | { |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 489 | return test_bit(flag, &sta->_flags); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 490 | } |
| 491 | |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 492 | static inline int test_and_clear_sta_flag(struct sta_info *sta, |
| 493 | enum ieee80211_sta_info_flags flag) |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 494 | { |
Johannes Berg | d9a7ddb | 2011-12-14 12:35:30 +0100 | [diff] [blame] | 495 | WARN_ON(flag == WLAN_STA_AUTH || |
| 496 | flag == WLAN_STA_ASSOC || |
| 497 | flag == WLAN_STA_AUTHORIZED); |
Johannes Berg | c2c98fd | 2011-09-29 16:04:36 +0200 | [diff] [blame] | 498 | return test_and_clear_bit(flag, &sta->_flags); |
Johannes Berg | 07346f81 | 2008-05-03 01:02:02 +0200 | [diff] [blame] | 499 | } |
| 500 | |
Johannes Berg | e7f4a94 | 2011-11-04 11:18:20 +0100 | [diff] [blame] | 501 | static inline int test_and_set_sta_flag(struct sta_info *sta, |
| 502 | enum ieee80211_sta_info_flags flag) |
| 503 | { |
Johannes Berg | d9a7ddb | 2011-12-14 12:35:30 +0100 | [diff] [blame] | 504 | WARN_ON(flag == WLAN_STA_AUTH || |
| 505 | flag == WLAN_STA_ASSOC || |
| 506 | flag == WLAN_STA_AUTHORIZED); |
Johannes Berg | e7f4a94 | 2011-11-04 11:18:20 +0100 | [diff] [blame] | 507 | return test_and_set_bit(flag, &sta->_flags); |
| 508 | } |
| 509 | |
Johannes Berg | 83d5cc0 | 2012-01-12 09:31:10 +0100 | [diff] [blame] | 510 | int sta_info_move_state(struct sta_info *sta, |
| 511 | enum ieee80211_sta_state new_state); |
Johannes Berg | d9a7ddb | 2011-12-14 12:35:30 +0100 | [diff] [blame] | 512 | |
Johannes Berg | 83d5cc0 | 2012-01-12 09:31:10 +0100 | [diff] [blame] | 513 | static inline void sta_info_pre_move_state(struct sta_info *sta, |
| 514 | enum ieee80211_sta_state new_state) |
Johannes Berg | d9a7ddb | 2011-12-14 12:35:30 +0100 | [diff] [blame] | 515 | { |
Johannes Berg | 83d5cc0 | 2012-01-12 09:31:10 +0100 | [diff] [blame] | 516 | int ret; |
| 517 | |
| 518 | WARN_ON_ONCE(test_sta_flag(sta, WLAN_STA_INSERTED)); |
| 519 | |
| 520 | ret = sta_info_move_state(sta, new_state); |
Johannes Berg | d9a7ddb | 2011-12-14 12:35:30 +0100 | [diff] [blame] | 521 | WARN_ON_ONCE(ret); |
| 522 | } |
| 523 | |
| 524 | |
Johannes Berg | ec034b2 | 2011-05-13 13:35:40 +0200 | [diff] [blame] | 525 | void ieee80211_assign_tid_tx(struct sta_info *sta, int tid, |
| 526 | struct tid_ampdu_tx *tid_tx); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 527 | |
Johannes Berg | 40b275b | 2011-05-13 14:15:49 +0200 | [diff] [blame] | 528 | static inline struct tid_ampdu_tx * |
| 529 | rcu_dereference_protected_tid_tx(struct sta_info *sta, int tid) |
| 530 | { |
| 531 | return rcu_dereference_protected(sta->ampdu_mlme.tid_tx[tid], |
| 532 | lockdep_is_held(&sta->lock) || |
| 533 | lockdep_is_held(&sta->ampdu_mlme.mtx)); |
| 534 | } |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 535 | |
| 536 | #define STA_HASH_SIZE 256 |
| 537 | #define STA_HASH(sta) (sta[5]) |
| 538 | |
| 539 | |
Johannes Berg | 948d887 | 2011-09-29 16:04:29 +0200 | [diff] [blame] | 540 | /* Maximum number of frames to buffer per power saving station per AC */ |
| 541 | #define STA_MAX_TX_BUFFER 64 |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 542 | |
| 543 | /* Minimum buffered frame expiry time. If STA uses listen interval that is |
| 544 | * smaller than this value, the minimum value here is used instead. */ |
| 545 | #define STA_TX_BUFFER_EXPIRE (10 * HZ) |
| 546 | |
| 547 | /* How often station data is cleaned up (e.g., expiration of buffered frames) |
| 548 | */ |
| 549 | #define STA_INFO_CLEANUP_INTERVAL (10 * HZ) |
| 550 | |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 551 | /* |
Johannes Berg | abe6063 | 2009-11-25 17:46:18 +0100 | [diff] [blame] | 552 | * Get a STA info, must be under RCU read lock. |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 553 | */ |
Johannes Berg | abe6063 | 2009-11-25 17:46:18 +0100 | [diff] [blame] | 554 | struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata, |
| 555 | const u8 *addr); |
| 556 | |
Felix Fietkau | 0e5ded5 | 2010-01-08 18:10:58 +0100 | [diff] [blame] | 557 | struct sta_info *sta_info_get_bss(struct ieee80211_sub_if_data *sdata, |
| 558 | const u8 *addr); |
| 559 | |
Johannes Berg | abe6063 | 2009-11-25 17:46:18 +0100 | [diff] [blame] | 560 | static inline |
| 561 | void for_each_sta_info_type_check(struct ieee80211_local *local, |
| 562 | const u8 *addr, |
| 563 | struct sta_info *sta, |
| 564 | struct sta_info *nxt) |
| 565 | { |
| 566 | } |
| 567 | |
Johannes Berg | 7852e36 | 2012-01-20 13:55:24 +0100 | [diff] [blame] | 568 | #define for_each_sta_info(local, _addr, _sta, nxt) \ |
Guy Eilam | 2a33bee | 2011-08-17 15:18:15 +0300 | [diff] [blame] | 569 | for ( /* initialise loop */ \ |
| 570 | _sta = rcu_dereference(local->sta_hash[STA_HASH(_addr)]),\ |
| 571 | nxt = _sta ? rcu_dereference(_sta->hnext) : NULL; \ |
| 572 | /* typecheck */ \ |
| 573 | for_each_sta_info_type_check(local, (_addr), _sta, nxt),\ |
| 574 | /* continue condition */ \ |
| 575 | _sta; \ |
| 576 | /* advance loop */ \ |
| 577 | _sta = nxt, \ |
| 578 | nxt = _sta ? rcu_dereference(_sta->hnext) : NULL \ |
| 579 | ) \ |
Johannes Berg | abe6063 | 2009-11-25 17:46:18 +0100 | [diff] [blame] | 580 | /* compare address and run code only if it matches */ \ |
Joe Perches | 3bc7945 | 2012-05-08 18:56:53 +0000 | [diff] [blame] | 581 | if (ether_addr_equal(_sta->sta.addr, (_addr))) |
Johannes Berg | abe6063 | 2009-11-25 17:46:18 +0100 | [diff] [blame] | 582 | |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 583 | /* |
| 584 | * Get STA info by index, BROKEN! |
| 585 | */ |
Johannes Berg | 3b53fde8 | 2009-11-16 12:00:37 +0100 | [diff] [blame] | 586 | struct sta_info *sta_info_get_by_idx(struct ieee80211_sub_if_data *sdata, |
| 587 | int idx); |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 588 | /* |
Johannes Berg | 73651ee | 2008-02-25 16:27:47 +0100 | [diff] [blame] | 589 | * Create a new STA info, caller owns returned structure |
| 590 | * until sta_info_insert(). |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 591 | */ |
Johannes Berg | 73651ee | 2008-02-25 16:27:47 +0100 | [diff] [blame] | 592 | struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, |
Johannes Berg | 5654416 | 2011-12-14 13:28:46 +0100 | [diff] [blame] | 593 | const u8 *addr, gfp_t gfp); |
Johannes Berg | d9a7ddb | 2011-12-14 12:35:30 +0100 | [diff] [blame] | 594 | |
| 595 | void sta_info_free(struct ieee80211_local *local, struct sta_info *sta); |
| 596 | |
Johannes Berg | 73651ee | 2008-02-25 16:27:47 +0100 | [diff] [blame] | 597 | /* |
| 598 | * Insert STA info into hash table/list, returns zero or a |
| 599 | * -EEXIST if (if the same MAC address is already present). |
| 600 | * |
Johannes Berg | 34e8950 | 2010-02-03 13:59:58 +0100 | [diff] [blame] | 601 | * Calling the non-rcu version makes the caller relinquish, |
| 602 | * the _rcu version calls read_lock_rcu() and must be called |
| 603 | * without it held. |
Johannes Berg | 73651ee | 2008-02-25 16:27:47 +0100 | [diff] [blame] | 604 | */ |
| 605 | int sta_info_insert(struct sta_info *sta); |
Johannes Berg | 34e8950 | 2010-02-03 13:59:58 +0100 | [diff] [blame] | 606 | int sta_info_insert_rcu(struct sta_info *sta) __acquires(RCU); |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 607 | |
Johannes Berg | 83d5cc0 | 2012-01-12 09:31:10 +0100 | [diff] [blame] | 608 | int __must_check __sta_info_destroy(struct sta_info *sta); |
Johannes Berg | 34e8950 | 2010-02-03 13:59:58 +0100 | [diff] [blame] | 609 | int sta_info_destroy_addr(struct ieee80211_sub_if_data *sdata, |
| 610 | const u8 *addr); |
| 611 | int sta_info_destroy_addr_bss(struct ieee80211_sub_if_data *sdata, |
| 612 | const u8 *addr); |
| 613 | |
Johannes Berg | c868cb35 | 2011-09-29 16:04:27 +0200 | [diff] [blame] | 614 | void sta_info_recalc_tim(struct sta_info *sta); |
Johannes Berg | d0709a6 | 2008-02-25 16:27:46 +0100 | [diff] [blame] | 615 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 616 | void sta_info_init(struct ieee80211_local *local); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 617 | void sta_info_stop(struct ieee80211_local *local); |
Johannes Berg | 051007d | 2012-12-13 23:49:02 +0100 | [diff] [blame] | 618 | |
| 619 | /** |
| 620 | * sta_info_flush - flush matching STA entries from the STA table |
| 621 | * |
| 622 | * Returns the number of removed STA entries. |
| 623 | * |
| 624 | * @sdata: sdata to remove all stations from |
Johannes Berg | e716251 | 2013-12-04 23:18:37 +0100 | [diff] [blame] | 625 | * @vlans: if the given interface is an AP interface, also flush VLANs |
Johannes Berg | 051007d | 2012-12-13 23:49:02 +0100 | [diff] [blame] | 626 | */ |
Johannes Berg | e716251 | 2013-12-04 23:18:37 +0100 | [diff] [blame] | 627 | int __sta_info_flush(struct ieee80211_sub_if_data *sdata, bool vlans); |
| 628 | |
| 629 | static inline int sta_info_flush(struct ieee80211_sub_if_data *sdata) |
| 630 | { |
| 631 | return __sta_info_flush(sdata, false); |
| 632 | } |
Johannes Berg | 051007d | 2012-12-13 23:49:02 +0100 | [diff] [blame] | 633 | |
Thomas Pedersen | 6b62bf3 | 2012-03-05 15:31:48 -0800 | [diff] [blame] | 634 | void sta_set_rate_info_tx(struct sta_info *sta, |
| 635 | const struct ieee80211_tx_rate *rate, |
| 636 | struct rate_info *rinfo); |
Saravana | 003e676 | 2012-11-28 18:29:38 +0530 | [diff] [blame] | 637 | void sta_set_rate_info_rx(struct sta_info *sta, |
| 638 | struct rate_info *rinfo); |
Johannes Berg | b7ffbd7 | 2014-06-04 17:31:56 +0200 | [diff] [blame] | 639 | void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo); |
| 640 | |
Johannes Berg | 24723d1 | 2008-09-11 00:01:46 +0200 | [diff] [blame] | 641 | void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata, |
| 642 | unsigned long exp_time); |
Emmanuel Grumbach | 687da13 | 2013-10-01 16:45:43 +0300 | [diff] [blame] | 643 | u8 sta_info_tx_streams(struct sta_info *sta); |
Johannes Berg | 004c872 | 2008-02-20 11:21:35 +0100 | [diff] [blame] | 644 | |
Johannes Berg | af81858 | 2009-11-06 11:35:50 +0100 | [diff] [blame] | 645 | void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta); |
| 646 | void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta); |
Johannes Berg | 47086fc | 2011-09-29 16:04:33 +0200 | [diff] [blame] | 647 | void ieee80211_sta_ps_deliver_uapsd(struct sta_info *sta); |
Johannes Berg | af81858 | 2009-11-06 11:35:50 +0100 | [diff] [blame] | 648 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 649 | #endif /* STA_INFO_H */ |