xref: /linux/net/mac80211/sta_info.h (revision 4ce06406958b67fdddcc2e6948237dd6ff6ba112)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright 2002-2005, Devicescape Software, Inc.
4  * Copyright 2013-2014  Intel Mobile Communications GmbH
5  * Copyright(c) 2015-2017 Intel Deutschland GmbH
6  * Copyright(c) 2020-2026 Intel Corporation
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>
15 #include <linux/workqueue.h>
16 #include <linux/average.h>
17 #include <linux/bitfield.h>
18 #include <linux/etherdevice.h>
19 #include <linux/rhashtable.h>
20 #include <linux/u64_stats_sync.h>
21 #include "key.h"
22 
23 /**
24  * enum ieee80211_sta_info_flags - Stations flags
25  *
26  * These flags are used with &struct sta_info's @flags member, but
27  * only indirectly with set_sta_flag() and friends.
28  *
29  * @WLAN_STA_AUTH: Station is authenticated.
30  * @WLAN_STA_ASSOC: Station is associated.
31  * @WLAN_STA_PS_STA: Station is in power-save mode
32  * @WLAN_STA_AUTHORIZED: Station is authorized to send/receive traffic.
33  *	This bit is always checked so needs to be enabled for all stations
34  *	when virtual port control is not in use.
35  * @WLAN_STA_SHORT_PREAMBLE: Station is capable of receiving short-preamble
36  *	frames.
37  * @WLAN_STA_WDS: Station is one of our WDS peers.
38  * @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the
39  *	IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next
40  *	frame to this station is transmitted.
41  * @WLAN_STA_MFP: Management frame protection is used with this STA.
42  * @WLAN_STA_BLOCK_BA: Used to deny ADDBA requests (both TX and RX)
43  *	during suspend/resume and station removal.
44  * @WLAN_STA_PS_DRIVER: driver requires keeping this station in
45  *	power-save mode logically to flush frames that might still
46  *	be in the queues
47  * @WLAN_STA_PSPOLL: Station sent PS-poll while driver was keeping
48  *	station in power-save mode, reply when the driver unblocks.
49  * @WLAN_STA_TDLS_PEER: Station is a TDLS peer.
50  * @WLAN_STA_TDLS_PEER_AUTH: This TDLS peer is authorized to send direct
51  *	packets. This means the link is enabled.
52  * @WLAN_STA_TDLS_INITIATOR: We are the initiator of the TDLS link with this
53  *	station.
54  * @WLAN_STA_TDLS_CHAN_SWITCH: This TDLS peer supports TDLS channel-switching
55  * @WLAN_STA_TDLS_OFF_CHANNEL: The local STA is currently off-channel with this
56  *	TDLS peer
57  * @WLAN_STA_TDLS_WIDER_BW: This TDLS peer supports working on a wider bw on
58  *	the BSS base channel.
59  * @WLAN_STA_UAPSD: Station requested unscheduled SP while driver was
60  *	keeping station in power-save mode, reply when the driver
61  *	unblocks the station.
62  * @WLAN_STA_SP: Station is in a service period, so don't try to
63  *	reply to other uAPSD trigger frames or PS-Poll.
64  * @WLAN_STA_4ADDR_EVENT: 4-addr event was already sent for this frame.
65  * @WLAN_STA_INSERTED: This station is inserted into the hash table.
66  * @WLAN_STA_RATE_CONTROL: rate control was initialized for this station.
67  * @WLAN_STA_TOFFSET_KNOWN: toffset calculated for this station is valid.
68  * @WLAN_STA_MPSP_OWNER: local STA is owner of a mesh Peer Service Period.
69  * @WLAN_STA_MPSP_RECIPIENT: local STA is recipient of a MPSP.
70  * @WLAN_STA_PS_DELIVER: station woke up, but we're still blocking TX
71  *	until pending frames are delivered
72  * @WLAN_STA_USES_ENCRYPTION: This station was configured for encryption,
73  *	so drop all packets without a key later.
74  * @WLAN_STA_DECAP_OFFLOAD: This station uses rx decap offload
75  *
76  * @NUM_WLAN_STA_FLAGS: number of defined flags
77  */
78 enum ieee80211_sta_info_flags {
79 	WLAN_STA_AUTH,
80 	WLAN_STA_ASSOC,
81 	WLAN_STA_PS_STA,
82 	WLAN_STA_AUTHORIZED,
83 	WLAN_STA_SHORT_PREAMBLE,
84 	WLAN_STA_WDS,
85 	WLAN_STA_CLEAR_PS_FILT,
86 	WLAN_STA_MFP,
87 	WLAN_STA_BLOCK_BA,
88 	WLAN_STA_PS_DRIVER,
89 	WLAN_STA_PSPOLL,
90 	WLAN_STA_TDLS_PEER,
91 	WLAN_STA_TDLS_PEER_AUTH,
92 	WLAN_STA_TDLS_INITIATOR,
93 	WLAN_STA_TDLS_CHAN_SWITCH,
94 	WLAN_STA_TDLS_OFF_CHANNEL,
95 	WLAN_STA_TDLS_WIDER_BW,
96 	WLAN_STA_UAPSD,
97 	WLAN_STA_SP,
98 	WLAN_STA_4ADDR_EVENT,
99 	WLAN_STA_INSERTED,
100 	WLAN_STA_RATE_CONTROL,
101 	WLAN_STA_TOFFSET_KNOWN,
102 	WLAN_STA_MPSP_OWNER,
103 	WLAN_STA_MPSP_RECIPIENT,
104 	WLAN_STA_PS_DELIVER,
105 	WLAN_STA_USES_ENCRYPTION,
106 	WLAN_STA_DECAP_OFFLOAD,
107 
108 	NUM_WLAN_STA_FLAGS,
109 };
110 
111 #define ADDBA_RESP_INTERVAL HZ
112 #define HT_AGG_MAX_RETRIES		15
113 #define HT_AGG_BURST_RETRIES		3
114 #define HT_AGG_RETRIES_PERIOD		(15 * HZ)
115 
116 #define HT_AGG_STATE_DRV_READY		0
117 #define HT_AGG_STATE_RESPONSE_RECEIVED	1
118 #define HT_AGG_STATE_OPERATIONAL	2
119 #define HT_AGG_STATE_STOPPING		3
120 #define HT_AGG_STATE_WANT_START		4
121 #define HT_AGG_STATE_WANT_STOP		5
122 #define HT_AGG_STATE_START_CB		6
123 #define HT_AGG_STATE_STOP_CB		7
124 #define HT_AGG_STATE_SENT_ADDBA		8
125 
126 DECLARE_EWMA(avg_signal, 10, 8)
127 enum ieee80211_agg_stop_reason {
128 	AGG_STOP_DECLINED,
129 	AGG_STOP_LOCAL_REQUEST,
130 	AGG_STOP_PEER_REQUEST,
131 	AGG_STOP_DESTROY_STA,
132 };
133 
134 /* Debugfs flags to enable/disable use of RX/TX airtime in scheduler */
135 #define AIRTIME_USE_TX		BIT(0)
136 #define AIRTIME_USE_RX		BIT(1)
137 
138 struct airtime_info {
139 	u64 rx_airtime;
140 	u64 tx_airtime;
141 	unsigned long last_active;
142 	s32 deficit;
143 	atomic_t aql_tx_pending; /* Estimated airtime for frames pending */
144 	u32 aql_limit_low;
145 	u32 aql_limit_high;
146 };
147 
148 void ieee80211_sta_update_pending_airtime(struct ieee80211_local *local,
149 					  struct sta_info *sta, u8 ac,
150 					  u16 tx_airtime, bool tx_completed);
151 
152 struct sta_info;
153 
154 /**
155  * struct tid_ampdu_tx - TID aggregation information (Tx).
156  *
157  * @rcu_head: rcu head for freeing structure
158  * @session_timer: check if we keep Tx-ing on the TID (by timeout value)
159  * @addba_resp_timer: timer for peer's response to addba request
160  * @pending: pending frames queue -- use sta's spinlock to protect
161  * @sta: station we are attached to
162  * @dialog_token: dialog token for aggregation session
163  * @timeout: session timeout value to be filled in ADDBA requests
164  * @tid: TID number
165  * @state: session state (see above)
166  * @last_tx: jiffies of last tx activity
167  * @stop_initiator: initiator of a session stop
168  * @tx_stop: TX DelBA frame when stopping
169  * @buf_size: reorder buffer size at receiver
170  * @failed_bar_ssn: ssn of the last failed BAR tx attempt
171  * @bar_pending: BAR needs to be re-sent
172  * @amsdu: support A-MSDU within A-MDPU
173  * @ssn: starting sequence number of the session
174  * @ndp: this session is using NDP Block ACKs
175  *
176  * This structure's lifetime is managed by RCU, assignments to
177  * the array holding it must hold the aggregation mutex.
178  *
179  * The TX path can access it under RCU lock-free if, and
180  * only if, the state has the flag %HT_AGG_STATE_OPERATIONAL
181  * set. Otherwise, the TX path must also acquire the spinlock
182  * and re-check the state, see comments in the tx code
183  * touching it.
184  */
185 struct tid_ampdu_tx {
186 	struct rcu_head rcu_head;
187 	struct timer_list session_timer;
188 	struct timer_list addba_resp_timer;
189 	struct sk_buff_head pending;
190 	struct sta_info *sta;
191 	unsigned long state;
192 	unsigned long last_tx;
193 	u16 timeout;
194 	u8 dialog_token;
195 	u8 stop_initiator;
196 	bool tx_stop;
197 	u16 buf_size;
198 	u16 ssn;
199 
200 	u16 failed_bar_ssn;
201 	bool bar_pending;
202 	bool amsdu;
203 	bool ndp;
204 	u8 tid;
205 };
206 
207 /**
208  * struct tid_ampdu_rx - TID aggregation information (Rx).
209  *
210  * @reorder_buf: buffer to reorder incoming aggregated MPDUs. An MPDU may be an
211  *	A-MSDU with individually reported subframes.
212  * @reorder_buf_filtered: bitmap indicating where there are filtered frames in
213  *	the reorder buffer that should be ignored when releasing frames
214  * @reorder_time: jiffies when skb was added
215  * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value)
216  * @reorder_timer: releases expired frames from the reorder buffer.
217  * @sta: station we are attached to
218  * @last_rx: jiffies of last rx activity
219  * @head_seq_num: head sequence number in reordering buffer.
220  * @stored_mpdu_num: number of MPDUs in reordering buffer
221  * @ssn: Starting Sequence Number expected to be aggregated.
222  * @buf_size: buffer size for incoming A-MPDUs
223  * @timeout: reset timer value (in TUs).
224  * @tid: TID number
225  * @rcu_head: RCU head used for freeing this struct
226  * @reorder_lock: serializes access to reorder buffer, see below.
227  * @auto_seq: used for offloaded BA sessions to automatically pick head_seq_and
228  *	and ssn.
229  * @removed: this session is removed (but might have been found due to RCU)
230  * @started: this session has started (head ssn or higher was received)
231  *
232  * This structure's lifetime is managed by RCU, assignments to
233  * the array holding it must hold the aggregation mutex.
234  *
235  * The @reorder_lock is used to protect the members of this
236  * struct, except for @timeout, @buf_size and @dialog_token,
237  * which are constant across the lifetime of the struct (the
238  * dialog token being used only for debugging).
239  */
240 struct tid_ampdu_rx {
241 	struct rcu_head rcu_head;
242 	spinlock_t reorder_lock;
243 	u64 reorder_buf_filtered;
244 	struct sk_buff_head *reorder_buf;
245 	unsigned long *reorder_time;
246 	struct sta_info *sta;
247 	struct timer_list session_timer;
248 	struct timer_list reorder_timer;
249 	unsigned long last_rx;
250 	u16 head_seq_num;
251 	u16 stored_mpdu_num;
252 	u16 ssn;
253 	u16 buf_size;
254 	u16 timeout;
255 	u8 tid;
256 	u8 auto_seq:1,
257 	   removed:1,
258 	   started:1;
259 };
260 
261 /**
262  * struct sta_ampdu_mlme - STA aggregation information.
263  *
264  * @tid_rx: aggregation info for Rx per TID -- RCU protected
265  * @tid_rx_token: dialog tokens for valid aggregation sessions
266  * @tid_rx_timer_expired: bitmap indicating on which TIDs the
267  *	RX timer expired until the work for it runs
268  * @tid_rx_stop_requested:  bitmap indicating which BA sessions per TID the
269  *	driver requested to close until the work for it runs
270  * @tid_rx_manage_offl: bitmap indicating which BA sessions were requested
271  *	to be treated as started/stopped due to offloading
272  * @agg_session_valid: bitmap indicating which TID has a rx BA session open on
273  * @unexpected_agg: bitmap indicating which TID already sent a delBA due to
274  *	unexpected aggregation related frames outside a session
275  * @work: work struct for starting/stopping aggregation
276  * @tid_tx: aggregation info for Tx per TID
277  * @tid_start_tx: sessions where start was requested, not just protected
278  *	by wiphy mutex but also sta->lock
279  * @last_addba_req_time: timestamp of the last addBA request.
280  * @addba_req_num: number of times addBA request has been sent.
281  * @dialog_token_allocator: dialog token enumerator for each new session;
282  */
283 struct sta_ampdu_mlme {
284 	/* rx */
285 	struct tid_ampdu_rx __rcu *tid_rx[IEEE80211_NUM_TIDS];
286 	u8 tid_rx_token[IEEE80211_NUM_TIDS];
287 	unsigned long tid_rx_timer_expired[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
288 	unsigned long tid_rx_stop_requested[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
289 	unsigned long tid_rx_manage_offl[BITS_TO_LONGS(2 * IEEE80211_NUM_TIDS)];
290 	unsigned long agg_session_valid[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
291 	unsigned long unexpected_agg[BITS_TO_LONGS(IEEE80211_NUM_TIDS)];
292 	/* tx */
293 	struct wiphy_work work;
294 	struct tid_ampdu_tx __rcu *tid_tx[IEEE80211_NUM_TIDS];
295 	struct tid_ampdu_tx *tid_start_tx[IEEE80211_NUM_TIDS];
296 	unsigned long last_addba_req_time[IEEE80211_NUM_TIDS];
297 	u8 addba_req_num[IEEE80211_NUM_TIDS];
298 	u8 dialog_token_allocator;
299 };
300 
301 
302 /* Value to indicate no TID reservation */
303 #define IEEE80211_TID_UNRESERVED	0xff
304 
305 #define IEEE80211_FAST_XMIT_MAX_IV	18
306 
307 /**
308  * struct ieee80211_fast_tx - TX fastpath information
309  * @key: key to use for hw crypto
310  * @hdr: the 802.11 header to put with the frame
311  * @hdr_len: actual 802.11 header length
312  * @sa_offs: offset of the SA
313  * @da_offs: offset of the DA
314  * @pn_offs: offset where to put PN for crypto (or 0 if not needed)
315  * @band: band this will be transmitted on, for tx_info
316  * @rcu_head: RCU head to free this struct
317  *
318  * This struct is small enough so that the common case (maximum crypto
319  * header length of 8 like for CCMP/GCMP) fits into a single 64-byte
320  * cache line.
321  */
322 struct ieee80211_fast_tx {
323 	struct ieee80211_key *key;
324 	u8 hdr_len;
325 	u8 sa_offs, da_offs, pn_offs;
326 	u8 band;
327 	u8 hdr[30 + 2 + IEEE80211_FAST_XMIT_MAX_IV +
328 	       sizeof(rfc1042_header)] __aligned(2);
329 
330 	struct rcu_head rcu_head;
331 };
332 
333 /**
334  * struct ieee80211_fast_rx - RX fastpath information
335  * @dev: netdevice for reporting the SKB
336  * @vif_type: (P2P-less) interface type of the original sdata (sdata->vif.type)
337  * @vif_addr: interface address
338  * @rfc1042_hdr: copy of the RFC 1042 SNAP header (to have in cache)
339  * @control_port_protocol: control port protocol copied from sdata
340  * @expected_ds_bits: from/to DS bits expected
341  * @icv_len: length of the MIC if present
342  * @key: bool indicating encryption is expected (key is set)
343  * @internal_forward: forward froms internally on AP/VLAN type interfaces
344  * @uses_rss: copy of USES_RSS hw flag
345  * @da_offs: offset of the DA in the header (for header conversion)
346  * @sa_offs: offset of the SA in the header (for header conversion)
347  * @rcu_head: RCU head for freeing this structure
348  */
349 struct ieee80211_fast_rx {
350 	struct net_device *dev;
351 	enum nl80211_iftype vif_type;
352 	u8 vif_addr[ETH_ALEN] __aligned(2);
353 	u8 rfc1042_hdr[6] __aligned(2);
354 	__be16 control_port_protocol;
355 	__le16 expected_ds_bits;
356 	u8 icv_len;
357 	u8 key:1,
358 	   internal_forward:1,
359 	   uses_rss:1;
360 	u8 da_offs, sa_offs;
361 
362 	struct rcu_head rcu_head;
363 };
364 
365 /* we use only values in the range 0-100, so pick a large precision */
366 DECLARE_EWMA(mesh_fail_avg, 20, 8)
367 DECLARE_EWMA(mesh_tx_rate_avg, 8, 16)
368 
369 /**
370  * struct mesh_sta - mesh STA information
371  * @plink_lock: serialize access to plink fields
372  * @llid: Local link ID
373  * @plid: Peer link ID
374  * @aid: local aid supplied by peer
375  * @reason: Cancel reason on PLINK_HOLDING state
376  * @plink_retries: Retries in establishment
377  * @plink_state: peer link state
378  * @plink_timeout: timeout of peer link
379  * @plink_timer: peer link watch timer
380  * @plink_sta: peer link watch timer's sta_info
381  * @t_offset: timing offset relative to this host
382  * @t_offset_setpoint: reference timing offset of this sta to be used when
383  * 	calculating clockdrift
384  * @local_pm: local link-specific power save mode
385  * @peer_pm: peer-specific power save mode towards local STA
386  * @nonpeer_pm: STA power save mode towards non-peer neighbors
387  * @processed_beacon: set to true after peer rates and capabilities are
388  *	processed
389  * @connected_to_gate: true if mesh STA has a path to a mesh gate
390  * @connected_to_as: true if mesh STA has a path to a authentication server
391  * @fail_avg: moving percentage of failed MSDUs
392  * @tx_rate_avg: moving average of tx bitrate
393  */
394 struct mesh_sta {
395 	struct timer_list plink_timer;
396 	struct sta_info *plink_sta;
397 
398 	s64 t_offset;
399 	s64 t_offset_setpoint;
400 
401 	spinlock_t plink_lock;
402 	u16 llid;
403 	u16 plid;
404 	u16 aid;
405 	u16 reason;
406 	u8 plink_retries;
407 
408 	bool processed_beacon;
409 	bool connected_to_gate;
410 	bool connected_to_as;
411 
412 	enum nl80211_plink_state plink_state;
413 	u32 plink_timeout;
414 
415 	/* mesh power save */
416 	enum nl80211_mesh_power_mode local_pm;
417 	enum nl80211_mesh_power_mode peer_pm;
418 	enum nl80211_mesh_power_mode nonpeer_pm;
419 
420 	/* moving percentage of failed MSDUs */
421 	struct ewma_mesh_fail_avg fail_avg;
422 	/* moving average of tx bitrate */
423 	struct ewma_mesh_tx_rate_avg tx_rate_avg;
424 };
425 
426 DECLARE_EWMA(signal, 10, 8)
427 
428 struct ieee80211_sta_rx_stats {
429 	unsigned long packets;
430 	unsigned long last_rx;
431 	unsigned long num_duplicates;
432 	unsigned long fragments;
433 	unsigned long dropped;
434 	int last_signal;
435 	u8 chains;
436 	s8 chain_signal_last[IEEE80211_MAX_CHAINS];
437 	u32 last_rate;
438 	struct u64_stats_sync syncp;
439 	u64_stats_t bytes;
440 	u64_stats_t msdu[IEEE80211_NUM_TIDS + 1];
441 };
442 
443 /*
444  * IEEE 802.11-2016 (10.6 "Defragmentation") recommends support for "concurrent
445  * reception of at least one MSDU per access category per associated STA"
446  * on APs, or "at least one MSDU per access category" on other interface types.
447  *
448  * This limit can be increased by changing this define, at the cost of slower
449  * frame reassembly and increased memory use while fragments are pending.
450  */
451 #define IEEE80211_FRAGMENT_MAX 4
452 
453 struct ieee80211_fragment_entry {
454 	struct sk_buff_head skb_list;
455 	unsigned long first_frag_time;
456 	u16 seq;
457 	u16 extra_len;
458 	u16 last_frag;
459 	u8 rx_queue;
460 	u8 check_sequential_pn:1, /* needed for CCMP/GCMP */
461 	   is_protected:1;
462 	u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
463 	unsigned int key_color;
464 };
465 
466 struct ieee80211_fragment_cache {
467 	struct ieee80211_fragment_entry	entries[IEEE80211_FRAGMENT_MAX];
468 	unsigned int next;
469 };
470 
471 /**
472  * struct link_sta_info - Link STA information
473  * All link specific sta info are stored here for reference. This can be
474  * a single entry for non-MLD STA or multiple entries for MLD STA
475  * @addr: Link MAC address - Can be same as MLD STA mac address and is always
476  *	same for non-MLD STA. This is used as key for searching link STA
477  * @link_id: Link ID uniquely identifying the link STA. This is 0 for non-MLD
478  *	and set to the corresponding vif LinkId for MLD STA
479  * @op_mode_nss: NSS limit as set by operating mode notification, or 0
480  * @capa_nss: NSS limit as determined by local and peer capabilities
481  * @link_hash_node: hash node for rhashtable
482  * @sta: Points to the STA info
483  * @gtk: group keys negotiated with this station, if any
484  * @tx_stats: TX statistics
485  * @tx_stats.packets: # of packets transmitted
486  * @tx_stats.bytes: # of bytes in all packets transmitted
487  * @tx_stats.last_rate: last TX rate
488  * @tx_stats.msdu: # of transmitted MSDUs per TID
489  * @rx_stats: RX statistics
490  * @rx_stats_avg: averaged RX statistics
491  * @rx_stats_avg.signal: averaged signal
492  * @rx_stats_avg.chain_signal: averaged per-chain signal
493  * @pcpu_rx_stats: per-CPU RX statistics, assigned only if the driver needs
494  *	this (by advertising the USES_RSS hw flag)
495  * @status_stats: TX status statistics
496  * @status_stats.filtered: # of filtered frames
497  * @status_stats.retry_failed: # of frames that failed after retry
498  * @status_stats.retry_count: # of retries attempted
499  * @status_stats.lost_packets: # of lost packets
500  * @status_stats.last_pkt_time: timestamp of last ACKed packet
501  * @status_stats.msdu_retries: # of MSDU retries
502  * @status_stats.msdu_failed: # of failed MSDUs
503  * @status_stats.last_ack: last ack timestamp (jiffies)
504  * @status_stats.last_ack_signal: last ACK signal
505  * @status_stats.ack_signal_filled: last ACK signal validity
506  * @status_stats.avg_ack_signal: average ACK signal
507  * @cur_max_bandwidth: maximum bandwidth to use for TX to the station,
508  *	taken from HT/VHT capabilities or VHT operating mode notification
509  * @rx_omi_bw_rx: RX OMI bandwidth restriction to apply for RX
510  * @rx_omi_bw_tx: RX OMI bandwidth restriction to apply for TX
511  * @rx_omi_bw_staging: RX OMI bandwidth restriction to apply later
512  *	during finalize
513  * @debugfs_dir: debug filesystem directory dentry
514  * @pub: public (driver visible) link STA data
515  */
516 struct link_sta_info {
517 	u8 addr[ETH_ALEN];
518 	u8 link_id;
519 
520 	u8 op_mode_nss, capa_nss;
521 
522 	struct rhlist_head link_hash_node;
523 
524 	struct sta_info *sta;
525 	struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS +
526 					NUM_DEFAULT_MGMT_KEYS +
527 					NUM_DEFAULT_BEACON_KEYS];
528 	struct ieee80211_sta_rx_stats __percpu *pcpu_rx_stats;
529 
530 	/* Updated from RX path only, no locking requirements */
531 	struct ieee80211_sta_rx_stats rx_stats;
532 	struct {
533 		struct ewma_signal signal;
534 		struct ewma_signal chain_signal[IEEE80211_MAX_CHAINS];
535 	} rx_stats_avg;
536 
537 	/* Updated from TX status path only, no locking requirements */
538 	struct {
539 		unsigned long filtered;
540 		unsigned long retry_failed, retry_count;
541 		unsigned int lost_packets;
542 		unsigned long last_pkt_time;
543 		u64 msdu_retries[IEEE80211_NUM_TIDS + 1];
544 		u64 msdu_failed[IEEE80211_NUM_TIDS + 1];
545 		unsigned long last_ack;
546 		s8 last_ack_signal;
547 		bool ack_signal_filled;
548 		struct ewma_avg_signal avg_ack_signal;
549 	} status_stats;
550 
551 	/* Updated from TX path only, no locking requirements */
552 	struct {
553 		u64 packets[IEEE80211_NUM_ACS];
554 		u64 bytes[IEEE80211_NUM_ACS];
555 		struct ieee80211_tx_rate last_rate;
556 		struct rate_info last_rate_info;
557 		u64 msdu[IEEE80211_NUM_TIDS + 1];
558 	} tx_stats;
559 
560 	enum ieee80211_sta_rx_bandwidth cur_max_bandwidth;
561 	enum ieee80211_sta_rx_bandwidth rx_omi_bw_rx,
562 					rx_omi_bw_tx,
563 					rx_omi_bw_staging;
564 
565 #ifdef CONFIG_MAC80211_DEBUGFS
566 	struct dentry *debugfs_dir;
567 #endif
568 
569 	struct ieee80211_link_sta *pub;
570 };
571 
572 /**
573  * struct ieee80211_sta_removed_link_stats - Removed link sta data
574  *
575  * keep required accumulated removed link data for stats
576  *
577  * @rx_packets: accumulated packets (MSDUs & MMPDUs) received from
578  *	this station for removed links
579  * @tx_packets: accumulated packets (MSDUs & MMPDUs) transmitted to
580  *	this station for removed links
581  * @rx_bytes: accumulated bytes (size of MPDUs) received from this
582  *	station for removed links
583  * @tx_bytes: accumulated bytes (size of MPDUs) transmitted to this
584  *	station for removed links
585  * @tx_retries: cumulative retry counts (MPDUs) for removed links
586  * @tx_failed: accumulated number of failed transmissions (MPDUs)
587  *	(retries exceeded, no ACK) for removed links
588  * @rx_dropped_misc: accumulated dropped packets for un-specified reason
589  *	from this station for removed links
590  * @beacon_loss_count: Number of times beacon loss event has triggered
591  *	from this station for removed links.
592  * @expected_throughput: expected throughput in kbps (including 802.11
593  *	headers) towards this station for removed links
594  * @pertid_stats: accumulated per-TID statistics for removed link of
595  *	station
596  * @pertid_stats.rx_msdu : accumulated number of received MSDUs towards
597  *	this station for removed links.
598  * @pertid_stats.tx_msdu: accumulated number of (attempted) transmitted
599  *	MSDUs towards this station for removed links
600  * @pertid_stats.tx_msdu_retries: accumulated number of retries (not
601  *	counting the first) for transmitted MSDUs towards this station
602  *	for removed links
603  * @pertid_stats.tx_msdu_failed: accumulated number of failed transmitted
604  *	MSDUs towards this station for removed links
605  */
606 struct ieee80211_sta_removed_link_stats {
607 	u32 rx_packets;
608 	u32 tx_packets;
609 	u64 rx_bytes;
610 	u64 tx_bytes;
611 	u32 tx_retries;
612 	u32 tx_failed;
613 	u32 rx_dropped_misc;
614 	u32 beacon_loss_count;
615 	u32 expected_throughput;
616 	struct {
617 		u64 rx_msdu;
618 		u64 tx_msdu;
619 		u64 tx_msdu_retries;
620 		u64 tx_msdu_failed;
621 	} pertid_stats;
622 };
623 
624 /**
625  * struct sta_info - STA information
626  *
627  * This structure collects information about a station that
628  * mac80211 is communicating with.
629  *
630  * @list: global linked list entry
631  * @free_list: list entry for keeping track of stations to free
632  * @hash_node: hash node for rhashtable
633  * @addr: station's MAC address - duplicated from public part to
634  *	let the hash table work with just a single cacheline
635  * @local: pointer to the global information
636  * @sdata: virtual interface this station belongs to
637  * @ptk: peer keys negotiated with this station, if any
638  * @ptk_idx: last installed peer key index
639  * @rate_ctrl: rate control algorithm reference
640  * @rate_ctrl_lock: spinlock used to protect rate control data
641  *	(data inside the algorithm, so serializes calls there)
642  * @rate_ctrl_priv: rate control private per-STA pointer
643  * @lock: used for locking all fields that require locking, see comments
644  *	in the header file.
645  * @drv_deliver_wk: used for delivering frames after driver PS unblocking
646  * @listen_interval: listen interval of this station, when we're acting as AP
647  * @_flags: STA flags, see &enum ieee80211_sta_info_flags, do not use directly
648  * @ps_lock: used for powersave (when mac80211 is the AP) related locking
649  * @ps_tx_buf: buffers (per AC) of frames to transmit to this station
650  *	when it leaves power saving state or polls
651  * @tx_filtered: buffers (per AC) of frames we already tried to
652  *	transmit but were filtered by hardware due to STA having
653  *	entered power saving state, these are also delivered to
654  *	the station when it leaves powersave or polls for frames
655  * @driver_buffered_tids: bitmap of TIDs the driver has data buffered on
656  * @txq_buffered_tids: bitmap of TIDs that mac80211 has txq data buffered on
657  * @assoc_at: clock boottime (in ns) of last association
658  * @last_connected: time (in seconds) when a station got connected
659  * @last_seq_ctrl: last received seq/frag number from this STA (per TID
660  *	plus one for non-QoS frames)
661  * @tid_seq: per-TID sequence numbers for sending to this STA
662  * @airtime: per-AC struct airtime_info describing airtime statistics for this
663  *	station
664  * @airtime_weight: station weight for airtime fairness calculation purposes
665  * @ampdu_mlme: A-MPDU state machine state
666  * @mesh: mesh STA information
667  * @debugfs_dir: debug filesystem directory dentry
668  * @dead: set to true when sta is unlinked
669  * @removed: set to true when sta is being removed from sta_list
670  * @uploaded: set to true when sta is uploaded to the driver
671  * @sta: station information we share with the driver
672  * @sta_state: duplicates information about station state (for debug)
673  * @rcu_head: RCU head used for freeing this station struct
674  * @reserved_tid: reserved TID (if any, otherwise IEEE80211_TID_UNRESERVED)
675  * @amsdu_mesh_control: track the mesh A-MSDU format used by the peer:
676  *
677  *	  * -1: not yet known
678  *	  * 0: non-mesh A-MSDU length field
679  *	  * 1: big-endian mesh A-MSDU length field
680  *	  * 2: little-endian mesh A-MSDU length field
681  *
682  * @fast_tx: TX fastpath information
683  * @fast_rx: RX fastpath information
684  * @tdls_chandef: a TDLS peer can have a wider chandef that is compatible to
685  *	the BSS one.
686  * @frags: fragment cache
687  * @cur: storage for aggregation data
688  *	&struct ieee80211_sta points either here or to deflink.agg.
689  * @deflink: This is the default link STA information, for non MLO STA all link
690  *	specific STA information is accessed through @deflink or through
691  *	link[0] which points to address of @deflink. For MLO Link STA
692  *	the first added link STA will point to deflink.
693  * @link: reference to Link Sta entries. For Non MLO STA, except 1st link,
694  *	i.e link[0] all links would be assigned to NULL by default and
695  *	would access link information via @deflink or link[0]. For MLO
696  *	STA, first link STA being added will point its link pointer to
697  *	@deflink address and remaining would be allocated and the address
698  *	would be assigned to link[link_id] where link_id is the id assigned
699  *	by the AP.
700  * @rem_link_stats: accumulated removed link stats
701  */
702 struct sta_info {
703 	/* General information, mostly static */
704 	struct list_head list, free_list;
705 	struct rcu_head rcu_head;
706 	struct rhlist_head hash_node;
707 	u8 addr[ETH_ALEN];
708 	struct ieee80211_local *local;
709 	struct ieee80211_sub_if_data *sdata;
710 	struct ieee80211_key __rcu *ptk[NUM_DEFAULT_KEYS];
711 	u8 ptk_idx;
712 	struct rate_control_ref *rate_ctrl;
713 	void *rate_ctrl_priv;
714 	spinlock_t rate_ctrl_lock;
715 	spinlock_t lock;
716 
717 	struct ieee80211_fast_tx __rcu *fast_tx;
718 	struct ieee80211_fast_rx __rcu *fast_rx;
719 
720 #ifdef CONFIG_MAC80211_MESH
721 	struct mesh_sta *mesh;
722 #endif
723 
724 	struct work_struct drv_deliver_wk;
725 
726 	u16 listen_interval;
727 
728 	bool dead;
729 	bool removed;
730 
731 	bool uploaded;
732 
733 	enum ieee80211_sta_state sta_state;
734 
735 	/* use the accessors defined below */
736 	unsigned long _flags;
737 
738 	/* STA powersave lock and frame queues */
739 	spinlock_t ps_lock;
740 	struct sk_buff_head ps_tx_buf[IEEE80211_NUM_ACS];
741 	struct sk_buff_head tx_filtered[IEEE80211_NUM_ACS];
742 	unsigned long driver_buffered_tids;
743 	unsigned long txq_buffered_tids;
744 
745 	u64 assoc_at;
746 	long last_connected;
747 
748 	/* Plus 1 for non-QoS frames */
749 	__le16 last_seq_ctrl[IEEE80211_NUM_TIDS + 1];
750 
751 	u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1];
752 
753 	struct airtime_info airtime[IEEE80211_NUM_ACS];
754 	u16 airtime_weight;
755 
756 	/*
757 	 * Aggregation information, locked with lock.
758 	 */
759 	struct sta_ampdu_mlme ampdu_mlme;
760 
761 #ifdef CONFIG_MAC80211_DEBUGFS
762 	struct dentry *debugfs_dir;
763 #endif
764 
765 	u8 reserved_tid;
766 	s8 amsdu_mesh_control;
767 
768 	struct cfg80211_chan_def tdls_chandef;
769 
770 	struct ieee80211_fragment_cache frags;
771 
772 	struct ieee80211_sta_aggregates cur;
773 	struct link_sta_info deflink;
774 	struct link_sta_info __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
775 	struct ieee80211_sta_removed_link_stats rem_link_stats;
776 
777 	/* keep last! */
778 	struct ieee80211_sta sta;
779 };
780 
781 static inline int ieee80211_tdls_sta_link_id(struct sta_info *sta)
782 {
783 	/* TDLS STA can only have a single link */
784 	return sta->sta.valid_links ? __ffs(sta->sta.valid_links) : 0;
785 }
786 
787 static inline enum nl80211_plink_state sta_plink_state(struct sta_info *sta)
788 {
789 #ifdef CONFIG_MAC80211_MESH
790 	return sta->mesh->plink_state;
791 #endif
792 	return NL80211_PLINK_LISTEN;
793 }
794 
795 static inline void set_sta_flag(struct sta_info *sta,
796 				enum ieee80211_sta_info_flags flag)
797 {
798 	WARN_ON(flag == WLAN_STA_AUTH ||
799 		flag == WLAN_STA_ASSOC ||
800 		flag == WLAN_STA_AUTHORIZED);
801 	set_bit(flag, &sta->_flags);
802 }
803 
804 static inline void clear_sta_flag(struct sta_info *sta,
805 				  enum ieee80211_sta_info_flags flag)
806 {
807 	WARN_ON(flag == WLAN_STA_AUTH ||
808 		flag == WLAN_STA_ASSOC ||
809 		flag == WLAN_STA_AUTHORIZED);
810 	clear_bit(flag, &sta->_flags);
811 }
812 
813 static inline int test_sta_flag(struct sta_info *sta,
814 				enum ieee80211_sta_info_flags flag)
815 {
816 	return test_bit(flag, &sta->_flags);
817 }
818 
819 static inline int test_and_clear_sta_flag(struct sta_info *sta,
820 					  enum ieee80211_sta_info_flags flag)
821 {
822 	WARN_ON(flag == WLAN_STA_AUTH ||
823 		flag == WLAN_STA_ASSOC ||
824 		flag == WLAN_STA_AUTHORIZED);
825 	return test_and_clear_bit(flag, &sta->_flags);
826 }
827 
828 static inline int test_and_set_sta_flag(struct sta_info *sta,
829 					enum ieee80211_sta_info_flags flag)
830 {
831 	WARN_ON(flag == WLAN_STA_AUTH ||
832 		flag == WLAN_STA_ASSOC ||
833 		flag == WLAN_STA_AUTHORIZED);
834 	return test_and_set_bit(flag, &sta->_flags);
835 }
836 
837 int sta_info_move_state(struct sta_info *sta,
838 			enum ieee80211_sta_state new_state);
839 
840 static inline void sta_info_pre_move_state(struct sta_info *sta,
841 					   enum ieee80211_sta_state new_state)
842 {
843 	int ret;
844 
845 	WARN_ON_ONCE(test_sta_flag(sta, WLAN_STA_INSERTED));
846 
847 	ret = sta_info_move_state(sta, new_state);
848 	WARN_ON_ONCE(ret);
849 }
850 
851 
852 void ieee80211_assign_tid_tx(struct sta_info *sta, int tid,
853 			     struct tid_ampdu_tx *tid_tx);
854 
855 #define rcu_dereference_protected_tid_tx(sta, tid)			\
856 	rcu_dereference_protected((sta)->ampdu_mlme.tid_tx[tid],	\
857 				  lockdep_is_held(&(sta)->lock) ||	\
858 				  lockdep_is_held(&(sta)->local->hw.wiphy->mtx));
859 
860 /* Maximum number of frames to buffer per power saving station per AC */
861 #define STA_MAX_TX_BUFFER	64
862 
863 /* Minimum buffered frame expiry time. If STA uses listen interval that is
864  * smaller than this value, the minimum value here is used instead. */
865 #define STA_TX_BUFFER_EXPIRE (10 * HZ)
866 
867 /* How often station data is cleaned up (e.g., expiration of buffered frames)
868  */
869 #define STA_INFO_CLEANUP_INTERVAL (10 * HZ)
870 
871 struct rhlist_head *sta_info_hash_lookup(struct ieee80211_local *local,
872 					 const u8 *addr);
873 
874 /*
875  * Get a STA info, must be under RCU read lock.
876  */
877 struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata,
878 			      const u8 *addr);
879 
880 struct sta_info *sta_info_get_bss(struct ieee80211_sub_if_data *sdata,
881 				  const u8 *addr);
882 
883 /* user must hold wiphy mutex or be in RCU critical section */
884 struct sta_info *sta_info_get_by_addrs(struct ieee80211_local *local,
885 				       const u8 *sta_addr, const u8 *vif_addr);
886 
887 #define for_each_sta_info(local, _addr, _sta, _tmp)			\
888 	rhl_for_each_entry_rcu(_sta, _tmp,				\
889 			       sta_info_hash_lookup(local, _addr), hash_node)
890 
891 struct rhlist_head *link_sta_info_hash_lookup(struct ieee80211_local *local,
892 					      const u8 *addr);
893 
894 #define for_each_link_sta_info(local, _addr, _sta, _tmp)		\
895 	rhl_for_each_entry_rcu(_sta, _tmp,				\
896 			       link_sta_info_hash_lookup(local, _addr),	\
897 			       link_hash_node)
898 
899 struct link_sta_info *
900 link_sta_info_get_bss(struct ieee80211_sub_if_data *sdata, const u8 *addr);
901 
902 /*
903  * Get STA info by index, BROKEN!
904  */
905 struct sta_info *sta_info_get_by_idx(struct ieee80211_sub_if_data *sdata,
906 				     int idx);
907 /*
908  * Create a new STA info, caller owns returned structure
909  * until sta_info_insert().
910  */
911 struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
912 				const u8 *addr, gfp_t gfp);
913 struct sta_info *sta_info_alloc_with_link(struct ieee80211_sub_if_data *sdata,
914 					  const u8 *mld_addr,
915 					  unsigned int link_id,
916 					  const u8 *link_addr,
917 					  gfp_t gfp);
918 
919 void sta_info_free(struct ieee80211_local *local, struct sta_info *sta);
920 
921 /*
922  * Insert STA info into hash table/list, returns zero or a
923  * -EEXIST if (if the same MAC address is already present).
924  *
925  * Calling the non-rcu version makes the caller relinquish,
926  * the _rcu version calls read_lock_rcu() and must be called
927  * without it held.
928  */
929 int sta_info_insert(struct sta_info *sta);
930 int sta_info_insert_rcu(struct sta_info *sta) __acquires(RCU);
931 
932 int __must_check __sta_info_destroy(struct sta_info *sta);
933 int sta_info_destroy_addr(struct ieee80211_sub_if_data *sdata,
934 			  const u8 *addr);
935 int sta_info_destroy_addr_bss(struct ieee80211_sub_if_data *sdata,
936 			      const u8 *addr);
937 
938 void sta_info_recalc_tim(struct sta_info *sta);
939 
940 int sta_info_init(struct ieee80211_local *local);
941 void sta_info_stop(struct ieee80211_local *local);
942 
943 /**
944  * __sta_info_flush - flush matching STA entries from the STA table
945  *
946  * Return: the number of removed STA entries.
947  *
948  * @sdata: sdata to remove all stations from
949  * @vlans: if the given interface is an AP interface, also flush VLANs
950  * @link_id: if given (>=0), all those STA entries using @link_id only
951  *	     will be removed. If -1 is passed, all STA entries will be
952  *	     removed.
953  * @do_not_flush_sta: a station that shouldn't be flushed.
954  */
955 int __sta_info_flush(struct ieee80211_sub_if_data *sdata, bool vlans,
956 		     int link_id, struct sta_info *do_not_flush_sta);
957 
958 /**
959  * sta_info_flush - flush matching STA entries from the STA table
960  *
961  * Return: the number of removed STA entries.
962  *
963  * @sdata: sdata to remove all stations from
964  * @link_id: if given (>=0), all those STA entries using @link_id only
965  *	     will be removed. If -1 is passed, all STA entries will be
966  *	     removed.
967  */
968 static inline int sta_info_flush(struct ieee80211_sub_if_data *sdata,
969 				 int link_id)
970 {
971 	return __sta_info_flush(sdata, false, link_id, NULL);
972 }
973 
974 void sta_set_rate_info_tx(struct sta_info *sta,
975 			  const struct ieee80211_tx_rate *rate,
976 			  struct rate_info *rinfo);
977 void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo,
978 		   bool tidstats);
979 
980 void sta_set_accumulated_removed_links_sinfo(struct sta_info *sta,
981 					     struct station_info *sinfo);
982 
983 u32 sta_get_expected_throughput(struct sta_info *sta);
984 
985 void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
986 			  unsigned long exp_time);
987 
988 int ieee80211_sta_allocate_link(struct sta_info *sta, unsigned int link_id);
989 void ieee80211_sta_free_link(struct sta_info *sta, unsigned int link_id);
990 int ieee80211_sta_activate_link(struct sta_info *sta, unsigned int link_id);
991 void ieee80211_sta_remove_link(struct sta_info *sta, unsigned int link_id);
992 
993 void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta);
994 void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta);
995 void ieee80211_sta_ps_deliver_uapsd(struct sta_info *sta);
996 
997 unsigned long ieee80211_sta_last_active(struct sta_info *sta, int link_id);
998 
999 void ieee80211_sta_set_max_amsdu_subframes(struct sta_info *sta,
1000 					   const u8 *ext_capab,
1001 					   unsigned int ext_capab_len);
1002 
1003 void __ieee80211_sta_recalc_aggregates(struct sta_info *sta, u16 active_links);
1004 
1005 enum sta_stats_type {
1006 	STA_STATS_RATE_TYPE_INVALID = 0,
1007 	STA_STATS_RATE_TYPE_LEGACY,
1008 	STA_STATS_RATE_TYPE_HT,
1009 	STA_STATS_RATE_TYPE_VHT,
1010 	STA_STATS_RATE_TYPE_HE,
1011 	STA_STATS_RATE_TYPE_S1G,
1012 	STA_STATS_RATE_TYPE_EHT,
1013 	STA_STATS_RATE_TYPE_UHR,
1014 };
1015 
1016 /* common */
1017 #define STA_STATS_FIELD_TYPE		0x0000000F
1018 #define STA_STATS_FIELD_BW		0x000001F0
1019 #define STA_STATS_FIELD_RESERVED	0x00000E00
1020 
1021 /* STA_STATS_RATE_TYPE_LEGACY */
1022 #define STA_STATS_FIELD_LEGACY_IDX	0x0000F000
1023 #define STA_STATS_FIELD_LEGACY_BAND	0x000F0000
1024 
1025 /* STA_STATS_RATE_TYPE_HT */
1026 #define STA_STATS_FIELD_HT_MCS		0x000FF000
1027 
1028 /* STA_STATS_RATE_TYPE_VHT */
1029 #define STA_STATS_FIELD_VHT_MCS		0x0000F000
1030 #define STA_STATS_FIELD_VHT_NSS		0x000F0000
1031 
1032 /* HT & VHT */
1033 #define STA_STATS_FIELD_SGI		0x00100000
1034 
1035 /* STA_STATS_RATE_TYPE_HE */
1036 #define STA_STATS_FIELD_HE_MCS		0x0000F000
1037 #define STA_STATS_FIELD_HE_NSS		0x000F0000
1038 #define STA_STATS_FIELD_HE_RU		0x00700000
1039 #define STA_STATS_FIELD_HE_GI		0x01800000
1040 #define STA_STATS_FIELD_HE_DCM		0x02000000
1041 
1042 /* STA_STATS_RATE_TYPE_EHT */
1043 #define STA_STATS_FIELD_EHT_MCS		0x0000F000
1044 #define STA_STATS_FIELD_EHT_NSS		0x000F0000
1045 #define STA_STATS_FIELD_EHT_RU		0x00F00000
1046 #define STA_STATS_FIELD_EHT_GI		0x03000000
1047 
1048 /* STA_STATS_RATE_TYPE_UHR */
1049 #define STA_STATS_FIELD_UHR_MCS		0x0001F000
1050 #define STA_STATS_FIELD_UHR_NSS		0x001E0000
1051 #define STA_STATS_FIELD_UHR_RU		0x01E00000
1052 #define STA_STATS_FIELD_UHR_GI		0x06000000
1053 #define STA_STATS_FIELD_UHR_ELR		0x08000000
1054 #define STA_STATS_FIELD_UHR_IM		0x10000000
1055 
1056 
1057 #define STA_STATS_FIELD(_n, _v)		FIELD_PREP(STA_STATS_FIELD_ ## _n, _v)
1058 #define STA_STATS_GET(_n, _v)		FIELD_GET(STA_STATS_FIELD_ ## _n, _v)
1059 
1060 #define STA_STATS_RATE_INVALID		0
1061 
1062 static inline u32 sta_stats_encode_rate(struct ieee80211_rx_status *s)
1063 {
1064 	u32 r;
1065 
1066 	r = STA_STATS_FIELD(BW, s->bw);
1067 
1068 	switch (s->encoding) {
1069 	case RX_ENC_HT:
1070 	case RX_ENC_VHT:
1071 		if (s->enc_flags & RX_ENC_FLAG_SHORT_GI)
1072 			r |= STA_STATS_FIELD(SGI, 1);
1073 		break;
1074 	default:
1075 		break;
1076 	}
1077 
1078 	switch (s->encoding) {
1079 	case RX_ENC_VHT:
1080 		r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_VHT);
1081 		r |= STA_STATS_FIELD(VHT_NSS, s->nss);
1082 		r |= STA_STATS_FIELD(VHT_MCS, s->rate_idx);
1083 		break;
1084 	case RX_ENC_HT:
1085 		r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_HT);
1086 		r |= STA_STATS_FIELD(HT_MCS, s->rate_idx);
1087 		break;
1088 	case RX_ENC_LEGACY:
1089 		r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_LEGACY);
1090 		r |= STA_STATS_FIELD(LEGACY_BAND, s->band);
1091 		r |= STA_STATS_FIELD(LEGACY_IDX, s->rate_idx);
1092 		break;
1093 	case RX_ENC_HE:
1094 		r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_HE);
1095 		r |= STA_STATS_FIELD(HE_NSS, s->nss);
1096 		r |= STA_STATS_FIELD(HE_MCS, s->rate_idx);
1097 		r |= STA_STATS_FIELD(HE_GI, s->he_gi);
1098 		r |= STA_STATS_FIELD(HE_RU, s->he_ru);
1099 		r |= STA_STATS_FIELD(HE_DCM, s->he_dcm);
1100 		break;
1101 	case RX_ENC_EHT:
1102 		r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_EHT);
1103 		r |= STA_STATS_FIELD(EHT_NSS, s->nss);
1104 		r |= STA_STATS_FIELD(EHT_MCS, s->rate_idx);
1105 		r |= STA_STATS_FIELD(EHT_GI, s->eht.gi);
1106 		r |= STA_STATS_FIELD(EHT_RU, s->eht.ru);
1107 		break;
1108 	case RX_ENC_UHR:
1109 		r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_UHR);
1110 		r |= STA_STATS_FIELD(UHR_NSS, s->nss);
1111 		r |= STA_STATS_FIELD(UHR_MCS, s->rate_idx);
1112 		r |= STA_STATS_FIELD(UHR_GI, s->uhr.gi);
1113 		r |= STA_STATS_FIELD(UHR_RU, s->uhr.ru);
1114 		r |= STA_STATS_FIELD(UHR_ELR, s->uhr.elr);
1115 		r |= STA_STATS_FIELD(UHR_IM, s->uhr.im);
1116 		break;
1117 	default:
1118 		WARN_ON(1);
1119 		return STA_STATS_RATE_INVALID;
1120 	}
1121 
1122 	return r;
1123 }
1124 
1125 #endif /* STA_INFO_H */
1126