1 /******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
11 * Copyright(c) 2018 Intel Corporation
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14 * it under the terms of version 2 of the GNU General Public License as
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20 * General Public License for more details.
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25 * USA
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31 * Intel Linux Wireless <linuxwifi@intel.com>
32 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 *
34 * BSD LICENSE
35 *
36 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
37 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
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68 *****************************************************************************/
69
70 #ifndef __IWL_MVM_H__
71 #define __IWL_MVM_H__
72
73 #include <linux/list.h>
74 #include <linux/spinlock.h>
75 #include <linux/leds.h>
76 #include <linux/in6.h>
77
78 #ifdef CONFIG_THERMAL
79 #include <linux/thermal.h>
80 #endif
81
82 #include "iwl-op-mode.h"
83 #include "iwl-trans.h"
84 #include "fw/notif-wait.h"
85 #include "iwl-eeprom-parse.h"
86 #include "fw/file.h"
87 #include "iwl-config.h"
88 #include "sta.h"
89 #include "fw-api.h"
90 #include "constants.h"
91 #include "tof.h"
92 #include "fw/runtime.h"
93 #include "fw/dbg.h"
94 #include "fw/acpi.h"
95 #include "iwl-nvm-parse.h"
96
97 #include <linux/average.h>
98
99 #define IWL_MVM_MAX_ADDRESSES 5
100 /* RSSI offset for WkP */
101 #define IWL_RSSI_OFFSET 50
102 #define IWL_MVM_MISSED_BEACONS_THRESHOLD 8
103 /* A TimeUnit is 1024 microsecond */
104 #define MSEC_TO_TU(_msec) (_msec*1000/1024)
105
106 /* For GO, this value represents the number of TUs before CSA "beacon
107 * 0" TBTT when the CSA time-event needs to be scheduled to start. It
108 * must be big enough to ensure that we switch in time.
109 */
110 #define IWL_MVM_CHANNEL_SWITCH_TIME_GO 40
111
112 /* For client, this value represents the number of TUs before CSA
113 * "beacon 1" TBTT, instead. This is because we don't know when the
114 * GO/AP will be in the new channel, so we switch early enough.
115 */
116 #define IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT 10
117
118 /*
119 * This value (in TUs) is used to fine tune the CSA NoA end time which should
120 * be just before "beacon 0" TBTT.
121 */
122 #define IWL_MVM_CHANNEL_SWITCH_MARGIN 4
123
124 /*
125 * Number of beacons to transmit on a new channel until we unblock tx to
126 * the stations, even if we didn't identify them on a new channel
127 */
128 #define IWL_MVM_CS_UNBLOCK_TX_TIMEOUT 3
129
130 /* offchannel queue towards mac80211 */
131 #define IWL_MVM_OFFCHANNEL_QUEUE 0
132
133 extern const struct ieee80211_ops iwl_mvm_hw_ops;
134
135 /**
136 * struct iwl_mvm_mod_params - module parameters for iwlmvm
137 * @init_dbg: if true, then the NIC won't be stopped if the INIT fw asserted.
138 * We will register to mac80211 to have testmode working. The NIC must not
139 * be up'ed after the INIT fw asserted. This is useful to be able to use
140 * proprietary tools over testmode to debug the INIT fw.
141 * @tfd_q_hang_detect: enabled the detection of hung transmit queues
142 * @power_scheme: one of enum iwl_power_scheme
143 */
144 struct iwl_mvm_mod_params {
145 bool init_dbg;
146 bool tfd_q_hang_detect;
147 int power_scheme;
148 };
149 extern struct iwl_mvm_mod_params iwlmvm_mod_params;
150
151 struct iwl_mvm_phy_ctxt {
152 u16 id;
153 u16 color;
154 u32 ref;
155
156 enum nl80211_chan_width width;
157
158 /*
159 * TODO: This should probably be removed. Currently here only for rate
160 * scaling algorithm
161 */
162 struct ieee80211_channel *channel;
163 };
164
165 struct iwl_mvm_time_event_data {
166 struct ieee80211_vif *vif;
167 struct list_head list;
168 unsigned long end_jiffies;
169 u32 duration;
170 bool running;
171 u32 uid;
172
173 /*
174 * The access to the 'id' field must be done when the
175 * mvm->time_event_lock is held, as it value is used to indicate
176 * if the te is in the time event list or not (when id == TE_MAX)
177 */
178 u32 id;
179 };
180
181 /* Power management */
182
183 /**
184 * enum iwl_power_scheme
185 * @IWL_POWER_LEVEL_CAM - Continuously Active Mode
186 * @IWL_POWER_LEVEL_BPS - Balanced Power Save (default)
187 * @IWL_POWER_LEVEL_LP - Low Power
188 */
189 enum iwl_power_scheme {
190 IWL_POWER_SCHEME_CAM = 1,
191 IWL_POWER_SCHEME_BPS,
192 IWL_POWER_SCHEME_LP
193 };
194
195 #define IWL_CONN_MAX_LISTEN_INTERVAL 10
196 #define IWL_UAPSD_MAX_SP IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
197
198 #ifdef CONFIG_IWLWIFI_DEBUGFS
199 enum iwl_dbgfs_pm_mask {
200 MVM_DEBUGFS_PM_KEEP_ALIVE = BIT(0),
201 MVM_DEBUGFS_PM_SKIP_OVER_DTIM = BIT(1),
202 MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS = BIT(2),
203 MVM_DEBUGFS_PM_RX_DATA_TIMEOUT = BIT(3),
204 MVM_DEBUGFS_PM_TX_DATA_TIMEOUT = BIT(4),
205 MVM_DEBUGFS_PM_LPRX_ENA = BIT(6),
206 MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD = BIT(7),
207 MVM_DEBUGFS_PM_SNOOZE_ENABLE = BIT(8),
208 MVM_DEBUGFS_PM_UAPSD_MISBEHAVING = BIT(9),
209 MVM_DEBUGFS_PM_USE_PS_POLL = BIT(10),
210 };
211
212 struct iwl_dbgfs_pm {
213 u16 keep_alive_seconds;
214 u32 rx_data_timeout;
215 u32 tx_data_timeout;
216 bool skip_over_dtim;
217 u8 skip_dtim_periods;
218 bool lprx_ena;
219 u32 lprx_rssi_threshold;
220 bool snooze_ena;
221 bool uapsd_misbehaving;
222 bool use_ps_poll;
223 int mask;
224 };
225
226 /* beacon filtering */
227
228 enum iwl_dbgfs_bf_mask {
229 MVM_DEBUGFS_BF_ENERGY_DELTA = BIT(0),
230 MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA = BIT(1),
231 MVM_DEBUGFS_BF_ROAMING_STATE = BIT(2),
232 MVM_DEBUGFS_BF_TEMP_THRESHOLD = BIT(3),
233 MVM_DEBUGFS_BF_TEMP_FAST_FILTER = BIT(4),
234 MVM_DEBUGFS_BF_TEMP_SLOW_FILTER = BIT(5),
235 MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER = BIT(6),
236 MVM_DEBUGFS_BF_DEBUG_FLAG = BIT(7),
237 MVM_DEBUGFS_BF_ESCAPE_TIMER = BIT(8),
238 MVM_DEBUGFS_BA_ESCAPE_TIMER = BIT(9),
239 MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT = BIT(10),
240 };
241
242 struct iwl_dbgfs_bf {
243 u32 bf_energy_delta;
244 u32 bf_roaming_energy_delta;
245 u32 bf_roaming_state;
246 u32 bf_temp_threshold;
247 u32 bf_temp_fast_filter;
248 u32 bf_temp_slow_filter;
249 u32 bf_enable_beacon_filter;
250 u32 bf_debug_flag;
251 u32 bf_escape_timer;
252 u32 ba_escape_timer;
253 u32 ba_enable_beacon_abort;
254 int mask;
255 };
256 #endif
257
258 enum iwl_mvm_smps_type_request {
259 IWL_MVM_SMPS_REQ_BT_COEX,
260 IWL_MVM_SMPS_REQ_TT,
261 IWL_MVM_SMPS_REQ_PROT,
262 NUM_IWL_MVM_SMPS_REQ,
263 };
264
265 enum iwl_mvm_ref_type {
266 IWL_MVM_REF_UCODE_DOWN,
267 IWL_MVM_REF_SCAN,
268 IWL_MVM_REF_ROC,
269 IWL_MVM_REF_ROC_AUX,
270 IWL_MVM_REF_P2P_CLIENT,
271 IWL_MVM_REF_AP_IBSS,
272 IWL_MVM_REF_USER,
273 IWL_MVM_REF_TX,
274 IWL_MVM_REF_TX_AGG,
275 IWL_MVM_REF_ADD_IF,
276 IWL_MVM_REF_START_AP,
277 IWL_MVM_REF_BSS_CHANGED,
278 IWL_MVM_REF_PREPARE_TX,
279 IWL_MVM_REF_PROTECT_TDLS,
280 IWL_MVM_REF_CHECK_CTKILL,
281 IWL_MVM_REF_PRPH_READ,
282 IWL_MVM_REF_PRPH_WRITE,
283 IWL_MVM_REF_NMI,
284 IWL_MVM_REF_TM_CMD,
285 IWL_MVM_REF_EXIT_WORK,
286 IWL_MVM_REF_PROTECT_CSA,
287 IWL_MVM_REF_FW_DBG_COLLECT,
288 IWL_MVM_REF_INIT_UCODE,
289 IWL_MVM_REF_SENDING_CMD,
290 IWL_MVM_REF_RX,
291
292 /* update debugfs.c when changing this */
293
294 IWL_MVM_REF_COUNT,
295 };
296
297 enum iwl_bt_force_ant_mode {
298 BT_FORCE_ANT_DIS = 0,
299 BT_FORCE_ANT_AUTO,
300 BT_FORCE_ANT_BT,
301 BT_FORCE_ANT_WIFI,
302
303 BT_FORCE_ANT_MAX,
304 };
305
306 /**
307 * struct iwl_mvm_low_latency_cause - low latency set causes
308 * @LOW_LATENCY_TRAFFIC: indicates low latency traffic was detected
309 * @LOW_LATENCY_DEBUGFS: low latency mode set from debugfs
310 * @LOW_LATENCY_VCMD: low latency mode set from vendor command
311 */
312 enum iwl_mvm_low_latency_cause {
313 LOW_LATENCY_TRAFFIC = BIT(0),
314 LOW_LATENCY_DEBUGFS = BIT(1),
315 LOW_LATENCY_VCMD = BIT(2),
316 };
317
318 /**
319 * struct iwl_mvm_vif_bf_data - beacon filtering related data
320 * @bf_enabled: indicates if beacon filtering is enabled
321 * @ba_enabled: indicated if beacon abort is enabled
322 * @ave_beacon_signal: average beacon signal
323 * @last_cqm_event: rssi of the last cqm event
324 * @bt_coex_min_thold: minimum threshold for BT coex
325 * @bt_coex_max_thold: maximum threshold for BT coex
326 * @last_bt_coex_event: rssi of the last BT coex event
327 */
328 struct iwl_mvm_vif_bf_data {
329 bool bf_enabled;
330 bool ba_enabled;
331 int ave_beacon_signal;
332 int last_cqm_event;
333 int bt_coex_min_thold;
334 int bt_coex_max_thold;
335 int last_bt_coex_event;
336 };
337
338 /**
339 * struct iwl_mvm_vif - data per Virtual Interface, it is a MAC context
340 * @id: between 0 and 3
341 * @color: to solve races upon MAC addition and removal
342 * @ap_sta_id: the sta_id of the AP - valid only if VIF type is STA
343 * @bssid: BSSID for this (client) interface
344 * @associated: indicates that we're currently associated, used only for
345 * managing the firmware state in iwl_mvm_bss_info_changed_station()
346 * @ap_assoc_sta_count: count of stations associated to us - valid only
347 * if VIF type is AP
348 * @uploaded: indicates the MAC context has been added to the device
349 * @ap_ibss_active: indicates that AP/IBSS is configured and that the interface
350 * should get quota etc.
351 * @pm_enabled - Indicate if MAC power management is allowed
352 * @monitor_active: indicates that monitor context is configured, and that the
353 * interface should get quota etc.
354 * @low_latency: indicates low latency is set, see
355 * enum &iwl_mvm_low_latency_cause for causes.
356 * @ps_disabled: indicates that this interface requires PS to be disabled
357 * @queue_params: QoS params for this MAC
358 * @bcast_sta: station used for broadcast packets. Used by the following
359 * vifs: P2P_DEVICE, GO and AP.
360 * @beacon_skb: the skb used to hold the AP/GO beacon template
361 * @smps_requests: the SMPS requests of different parts of the driver,
362 * combined on update to yield the overall request to mac80211.
363 * @beacon_stats: beacon statistics, containing the # of received beacons,
364 * # of received beacons accumulated over FW restart, and the current
365 * average signal of beacons retrieved from the firmware
366 * @csa_failed: CSA failed to schedule time event, report an error later
367 * @features: hw features active for this vif
368 */
369 struct iwl_mvm_vif {
370 struct iwl_mvm *mvm;
371 u16 id;
372 u16 color;
373 u8 ap_sta_id;
374
375 u8 bssid[ETH_ALEN];
376 bool associated;
377 u8 ap_assoc_sta_count;
378
379 u16 cab_queue;
380
381 bool uploaded;
382 bool ap_ibss_active;
383 bool pm_enabled;
384 bool monitor_active;
385 u8 low_latency;
386 bool ps_disabled;
387 struct iwl_mvm_vif_bf_data bf_data;
388
389 struct {
390 u32 num_beacons, accu_num_beacons;
391 u8 avg_signal;
392 } beacon_stats;
393
394 u32 ap_beacon_time;
395
396 enum iwl_tsf_id tsf_id;
397
398 /*
399 * QoS data from mac80211, need to store this here
400 * as mac80211 has a separate callback but we need
401 * to have the data for the MAC context
402 */
403 struct ieee80211_tx_queue_params queue_params[IEEE80211_NUM_ACS];
404 struct iwl_mvm_time_event_data time_event_data;
405 struct iwl_mvm_time_event_data hs_time_event_data;
406
407 struct iwl_mvm_int_sta bcast_sta;
408 struct iwl_mvm_int_sta mcast_sta;
409
410 /*
411 * Assigned while mac80211 has the interface in a channel context,
412 * or, for P2P Device, while it exists.
413 */
414 struct iwl_mvm_phy_ctxt *phy_ctxt;
415
416 #ifdef CONFIG_PM
417 /* WoWLAN GTK rekey data */
418 struct {
419 u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
420 __le64 replay_ctr;
421 bool valid;
422 } rekey_data;
423
424 int tx_key_idx;
425
426 bool seqno_valid;
427 u16 seqno;
428 #endif
429
430 #if IS_ENABLED(CONFIG_IPV6)
431 /* IPv6 addresses for WoWLAN */
432 struct in6_addr target_ipv6_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX];
433 unsigned long tentative_addrs[BITS_TO_LONGS(IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX)];
434 int num_target_ipv6_addrs;
435 #endif
436
437 #ifdef CONFIG_IWLWIFI_DEBUGFS
438 struct dentry *dbgfs_dir;
439 struct dentry *dbgfs_slink;
440 struct iwl_dbgfs_pm dbgfs_pm;
441 struct iwl_dbgfs_bf dbgfs_bf;
442 struct iwl_mac_power_cmd mac_pwr_cmd;
443 int dbgfs_quota_min;
444 #endif
445
446 enum ieee80211_smps_mode smps_requests[NUM_IWL_MVM_SMPS_REQ];
447
448 /* FW identified misbehaving AP */
449 u8 uapsd_misbehaving_bssid[ETH_ALEN];
450
451 struct delayed_work uapsd_nonagg_detected_wk;
452
453 /* Indicates that CSA countdown may be started */
454 bool csa_countdown;
455 bool csa_failed;
456 u16 csa_target_freq;
457
458 /* Indicates that we are waiting for a beacon on a new channel */
459 bool csa_bcn_pending;
460
461 /* TCP Checksum Offload */
462 netdev_features_t features;
463 };
464
465 static inline struct iwl_mvm_vif *
iwl_mvm_vif_from_mac80211(struct ieee80211_vif * vif)466 iwl_mvm_vif_from_mac80211(struct ieee80211_vif *vif)
467 {
468 if (!vif)
469 return NULL;
470 return (void *)vif->drv_priv;
471 }
472
473 extern const u8 tid_to_mac80211_ac[];
474
475 #define IWL_MVM_SCAN_STOPPING_SHIFT 8
476
477 enum iwl_scan_status {
478 IWL_MVM_SCAN_REGULAR = BIT(0),
479 IWL_MVM_SCAN_SCHED = BIT(1),
480 IWL_MVM_SCAN_NETDETECT = BIT(2),
481
482 IWL_MVM_SCAN_STOPPING_REGULAR = BIT(8),
483 IWL_MVM_SCAN_STOPPING_SCHED = BIT(9),
484 IWL_MVM_SCAN_STOPPING_NETDETECT = BIT(10),
485
486 IWL_MVM_SCAN_REGULAR_MASK = IWL_MVM_SCAN_REGULAR |
487 IWL_MVM_SCAN_STOPPING_REGULAR,
488 IWL_MVM_SCAN_SCHED_MASK = IWL_MVM_SCAN_SCHED |
489 IWL_MVM_SCAN_STOPPING_SCHED,
490 IWL_MVM_SCAN_NETDETECT_MASK = IWL_MVM_SCAN_NETDETECT |
491 IWL_MVM_SCAN_STOPPING_NETDETECT,
492
493 IWL_MVM_SCAN_STOPPING_MASK = 0xff << IWL_MVM_SCAN_STOPPING_SHIFT,
494 IWL_MVM_SCAN_MASK = 0xff,
495 };
496
497 enum iwl_mvm_scan_type {
498 IWL_SCAN_TYPE_NOT_SET,
499 IWL_SCAN_TYPE_UNASSOC,
500 IWL_SCAN_TYPE_WILD,
501 IWL_SCAN_TYPE_MILD,
502 IWL_SCAN_TYPE_FRAGMENTED,
503 };
504
505 enum iwl_mvm_sched_scan_pass_all_states {
506 SCHED_SCAN_PASS_ALL_DISABLED,
507 SCHED_SCAN_PASS_ALL_ENABLED,
508 SCHED_SCAN_PASS_ALL_FOUND,
509 };
510
511 /**
512 * struct iwl_mvm_tt_mgnt - Thermal Throttling Management structure
513 * @ct_kill_exit: worker to exit thermal kill
514 * @dynamic_smps: Is thermal throttling enabled dynamic_smps?
515 * @tx_backoff: The current thremal throttling tx backoff in uSec.
516 * @min_backoff: The minimal tx backoff due to power restrictions
517 * @params: Parameters to configure the thermal throttling algorithm.
518 * @throttle: Is thermal throttling is active?
519 */
520 struct iwl_mvm_tt_mgmt {
521 struct delayed_work ct_kill_exit;
522 bool dynamic_smps;
523 u32 tx_backoff;
524 u32 min_backoff;
525 struct iwl_tt_params params;
526 bool throttle;
527 };
528
529 #ifdef CONFIG_THERMAL
530 /**
531 *struct iwl_mvm_thermal_device - thermal zone related data
532 * @temp_trips: temperature thresholds for report
533 * @fw_trips_index: keep indexes to original array - temp_trips
534 * @tzone: thermal zone device data
535 */
536 struct iwl_mvm_thermal_device {
537 s16 temp_trips[IWL_MAX_DTS_TRIPS];
538 u8 fw_trips_index[IWL_MAX_DTS_TRIPS];
539 struct thermal_zone_device *tzone;
540 };
541
542 /*
543 * struct iwl_mvm_cooling_device
544 * @cur_state: current state
545 * @cdev: struct thermal cooling device
546 */
547 struct iwl_mvm_cooling_device {
548 u32 cur_state;
549 struct thermal_cooling_device *cdev;
550 };
551 #endif
552
553 #define IWL_MVM_NUM_LAST_FRAMES_UCODE_RATES 8
554
555 struct iwl_mvm_frame_stats {
556 u32 legacy_frames;
557 u32 ht_frames;
558 u32 vht_frames;
559 u32 bw_20_frames;
560 u32 bw_40_frames;
561 u32 bw_80_frames;
562 u32 bw_160_frames;
563 u32 sgi_frames;
564 u32 ngi_frames;
565 u32 siso_frames;
566 u32 mimo2_frames;
567 u32 agg_frames;
568 u32 ampdu_count;
569 u32 success_frames;
570 u32 fail_frames;
571 u32 last_rates[IWL_MVM_NUM_LAST_FRAMES_UCODE_RATES];
572 int last_frame_idx;
573 };
574
575 enum {
576 D0I3_DEFER_WAKEUP,
577 D0I3_PENDING_WAKEUP,
578 };
579
580 #define IWL_MVM_DEBUG_SET_TEMPERATURE_DISABLE 0xff
581 #define IWL_MVM_DEBUG_SET_TEMPERATURE_MIN -100
582 #define IWL_MVM_DEBUG_SET_TEMPERATURE_MAX 200
583
584 enum iwl_mvm_tdls_cs_state {
585 IWL_MVM_TDLS_SW_IDLE = 0,
586 IWL_MVM_TDLS_SW_REQ_SENT,
587 IWL_MVM_TDLS_SW_RESP_RCVD,
588 IWL_MVM_TDLS_SW_REQ_RCVD,
589 IWL_MVM_TDLS_SW_ACTIVE,
590 };
591
592 enum iwl_mvm_traffic_load {
593 IWL_MVM_TRAFFIC_LOW,
594 IWL_MVM_TRAFFIC_MEDIUM,
595 IWL_MVM_TRAFFIC_HIGH,
596 };
597
598 DECLARE_EWMA(rate, 16, 16)
599
600 struct iwl_mvm_tcm_mac {
601 struct {
602 u32 pkts[IEEE80211_NUM_ACS];
603 u32 airtime;
604 } tx;
605 struct {
606 u32 pkts[IEEE80211_NUM_ACS];
607 u32 airtime;
608 u32 last_ampdu_ref;
609 } rx;
610 struct {
611 /* track AP's transfer in client mode */
612 u64 rx_bytes;
613 struct ewma_rate rate;
614 bool detected;
615 } uapsd_nonagg_detect;
616 bool opened_rx_ba_sessions;
617 };
618
619 struct iwl_mvm_tcm {
620 struct delayed_work work;
621 spinlock_t lock; /* used when time elapsed */
622 unsigned long ts; /* timestamp when period ends */
623 unsigned long ll_ts;
624 unsigned long uapsd_nonagg_ts;
625 bool paused;
626 struct iwl_mvm_tcm_mac data[NUM_MAC_INDEX_DRIVER];
627 struct {
628 u32 elapsed; /* milliseconds for this TCM period */
629 u32 airtime[NUM_MAC_INDEX_DRIVER];
630 enum iwl_mvm_traffic_load load[NUM_MAC_INDEX_DRIVER];
631 enum iwl_mvm_traffic_load band_load[NUM_NL80211_BANDS];
632 enum iwl_mvm_traffic_load global_load;
633 bool low_latency[NUM_MAC_INDEX_DRIVER];
634 bool change[NUM_MAC_INDEX_DRIVER];
635 bool global_change;
636 } result;
637 };
638
639 /**
640 * struct iwl_mvm_reorder_buffer - per ra/tid/queue reorder buffer
641 * @head_sn: reorder window head sn
642 * @num_stored: number of mpdus stored in the buffer
643 * @buf_size: the reorder buffer size as set by the last addba request
644 * @queue: queue of this reorder buffer
645 * @last_amsdu: track last ASMDU SN for duplication detection
646 * @last_sub_index: track ASMDU sub frame index for duplication detection
647 * @reorder_timer: timer for frames are in the reorder buffer. For AMSDU
648 * it is the time of last received sub-frame
649 * @removed: prevent timer re-arming
650 * @valid: reordering is valid for this queue
651 * @lock: protect reorder buffer internal state
652 * @mvm: mvm pointer, needed for frame timer context
653 */
654 struct iwl_mvm_reorder_buffer {
655 u16 head_sn;
656 u16 num_stored;
657 u16 buf_size;
658 int queue;
659 u16 last_amsdu;
660 u8 last_sub_index;
661 struct timer_list reorder_timer;
662 bool removed;
663 bool valid;
664 spinlock_t lock;
665 struct iwl_mvm *mvm;
666 } ____cacheline_aligned_in_smp;
667
668 /**
669 * struct _iwl_mvm_reorder_buf_entry - reorder buffer entry per-queue/per-seqno
670 * @frames: list of skbs stored
671 * @reorder_time: time the packet was stored in the reorder buffer
672 */
673 struct _iwl_mvm_reorder_buf_entry {
674 struct sk_buff_head frames;
675 unsigned long reorder_time;
676 };
677
678 /* make this indirection to get the aligned thing */
679 struct iwl_mvm_reorder_buf_entry {
680 struct _iwl_mvm_reorder_buf_entry e;
681 }
682 #ifndef __CHECKER__
683 /* sparse doesn't like this construct: "bad integer constant expression" */
684 __aligned(roundup_pow_of_two(sizeof(struct _iwl_mvm_reorder_buf_entry)))
685 #endif
686 ;
687
688 /**
689 * struct iwl_mvm_baid_data - BA session data
690 * @sta_id: station id
691 * @tid: tid of the session
692 * @baid baid of the session
693 * @timeout: the timeout set in the addba request
694 * @entries_per_queue: # of buffers per queue, this actually gets
695 * aligned up to avoid cache line sharing between queues
696 * @last_rx: last rx jiffies, updated only if timeout passed from last update
697 * @session_timer: timer to check if BA session expired, runs at 2 * timeout
698 * @mvm: mvm pointer, needed for timer context
699 * @reorder_buf: reorder buffer, allocated per queue
700 * @reorder_buf_data: data
701 */
702 struct iwl_mvm_baid_data {
703 struct rcu_head rcu_head;
704 u8 sta_id;
705 u8 tid;
706 u8 baid;
707 u16 timeout;
708 u16 entries_per_queue;
709 unsigned long last_rx;
710 struct timer_list session_timer;
711 struct iwl_mvm_baid_data __rcu **rcu_ptr;
712 struct iwl_mvm *mvm;
713 struct iwl_mvm_reorder_buffer reorder_buf[IWL_MAX_RX_HW_QUEUES];
714 struct iwl_mvm_reorder_buf_entry entries[];
715 };
716
717 static inline struct iwl_mvm_baid_data *
iwl_mvm_baid_data_from_reorder_buf(struct iwl_mvm_reorder_buffer * buf)718 iwl_mvm_baid_data_from_reorder_buf(struct iwl_mvm_reorder_buffer *buf)
719 {
720 return (void *)((u8 *)buf -
721 offsetof(struct iwl_mvm_baid_data, reorder_buf) -
722 sizeof(*buf) * buf->queue);
723 }
724
725 /*
726 * enum iwl_mvm_queue_status - queue status
727 * @IWL_MVM_QUEUE_FREE: the queue is not allocated nor reserved
728 * Basically, this means that this queue can be used for any purpose
729 * @IWL_MVM_QUEUE_RESERVED: queue is reserved but not yet in use
730 * This is the state of a queue that has been dedicated for some RATID
731 * (agg'd or not), but that hasn't yet gone through the actual enablement
732 * of iwl_mvm_enable_txq(), and therefore no traffic can go through it yet.
733 * Note that in this state there is no requirement to already know what TID
734 * should be used with this queue, it is just marked as a queue that will
735 * be used, and shouldn't be allocated to anyone else.
736 * @IWL_MVM_QUEUE_READY: queue is ready to be used
737 * This is the state of a queue that has been fully configured (including
738 * SCD pointers, etc), has a specific RA/TID assigned to it, and can be
739 * used to send traffic.
740 * @IWL_MVM_QUEUE_SHARED: queue is shared, or in a process of becoming shared
741 * This is a state in which a single queue serves more than one TID, all of
742 * which are not aggregated. Note that the queue is only associated to one
743 * RA.
744 * @IWL_MVM_QUEUE_INACTIVE: queue is allocated but no traffic on it
745 * This is a state of a queue that has had traffic on it, but during the
746 * last %IWL_MVM_DQA_QUEUE_TIMEOUT time period there has been no traffic on
747 * it. In this state, when a new queue is needed to be allocated but no
748 * such free queue exists, an inactive queue might be freed and given to
749 * the new RA/TID.
750 * @IWL_MVM_QUEUE_RECONFIGURING: queue is being reconfigured
751 * This is the state of a queue that has had traffic pass through it, but
752 * needs to be reconfigured for some reason, e.g. the queue needs to
753 * become unshared and aggregations re-enabled on.
754 */
755 enum iwl_mvm_queue_status {
756 IWL_MVM_QUEUE_FREE,
757 IWL_MVM_QUEUE_RESERVED,
758 IWL_MVM_QUEUE_READY,
759 IWL_MVM_QUEUE_SHARED,
760 IWL_MVM_QUEUE_INACTIVE,
761 IWL_MVM_QUEUE_RECONFIGURING,
762 };
763
764 #define IWL_MVM_DQA_QUEUE_TIMEOUT (5 * HZ)
765 #define IWL_MVM_INVALID_QUEUE 0xFFFF
766
767 #define IWL_MVM_NUM_CIPHERS 10
768
769 struct iwl_mvm_sar_profile {
770 bool enabled;
771 u8 table[ACPI_SAR_TABLE_SIZE];
772 };
773
774 struct iwl_mvm_geo_profile {
775 u8 values[ACPI_GEO_TABLE_SIZE];
776 };
777
778 struct iwl_mvm {
779 /* for logger access */
780 struct device *dev;
781
782 struct iwl_trans *trans;
783 const struct iwl_fw *fw;
784 const struct iwl_cfg *cfg;
785 struct iwl_phy_db *phy_db;
786 struct ieee80211_hw *hw;
787
788 /* for protecting access to iwl_mvm */
789 struct mutex mutex;
790 struct list_head async_handlers_list;
791 spinlock_t async_handlers_lock;
792 struct work_struct async_handlers_wk;
793
794 struct work_struct roc_done_wk;
795
796 unsigned long init_status;
797
798 unsigned long status;
799
800 u32 queue_sync_cookie;
801 atomic_t queue_sync_counter;
802 /*
803 * for beacon filtering -
804 * currently only one interface can be supported
805 */
806 struct iwl_mvm_vif *bf_allowed_vif;
807
808 bool hw_registered;
809 bool calibrating;
810 u32 error_event_table[2];
811 u32 log_event_table;
812 u32 umac_error_event_table;
813 bool support_umac_log;
814
815 u32 ampdu_ref;
816 bool ampdu_toggle;
817
818 struct iwl_notif_wait_data notif_wait;
819
820 union {
821 struct mvm_statistics_rx_v3 rx_stats_v3;
822 struct mvm_statistics_rx rx_stats;
823 };
824
825 struct {
826 u64 rx_time;
827 u64 tx_time;
828 u64 on_time_rf;
829 u64 on_time_scan;
830 } radio_stats, accu_radio_stats;
831
832 u16 hw_queue_to_mac80211[IWL_MAX_TVQM_QUEUES];
833
834 struct {
835 u8 hw_queue_refcount;
836 u8 ra_sta_id; /* The RA this queue is mapped to, if exists */
837 bool reserved; /* Is this the TXQ reserved for a STA */
838 u8 mac80211_ac; /* The mac80211 AC this queue is mapped to */
839 u8 txq_tid; /* The TID "owner" of this queue*/
840 u16 tid_bitmap; /* Bitmap of the TIDs mapped to this queue */
841 /* Timestamp for inactivation per TID of this queue */
842 unsigned long last_frame_time[IWL_MAX_TID_COUNT + 1];
843 enum iwl_mvm_queue_status status;
844 } queue_info[IWL_MAX_HW_QUEUES];
845 spinlock_t queue_info_lock; /* For syncing queue mgmt operations */
846 struct work_struct add_stream_wk; /* To add streams to queues */
847
848 atomic_t mac80211_queue_stop_count[IEEE80211_MAX_QUEUES];
849
850 const char *nvm_file_name;
851 struct iwl_nvm_data *nvm_data;
852 /* NVM sections */
853 struct iwl_nvm_section nvm_sections[NVM_MAX_NUM_SECTIONS];
854
855 struct iwl_fw_runtime fwrt;
856
857 /* EEPROM MAC addresses */
858 struct mac_address addresses[IWL_MVM_MAX_ADDRESSES];
859
860 /* data related to data path */
861 struct iwl_rx_phy_info last_phy_info;
862 struct ieee80211_sta __rcu *fw_id_to_mac_id[IWL_MVM_STATION_COUNT];
863 unsigned long sta_deferred_frames[BITS_TO_LONGS(IWL_MVM_STATION_COUNT)];
864 u8 rx_ba_sessions;
865
866 /* configured by mac80211 */
867 u32 rts_threshold;
868
869 /* Scan status, cmd (pre-allocated) and auxiliary station */
870 unsigned int scan_status;
871 void *scan_cmd;
872 struct iwl_mcast_filter_cmd *mcast_filter_cmd;
873 /* For CDB this is low band scan type, for non-CDB - type. */
874 enum iwl_mvm_scan_type scan_type;
875 enum iwl_mvm_scan_type hb_scan_type;
876
877 enum iwl_mvm_sched_scan_pass_all_states sched_scan_pass_all;
878 struct delayed_work scan_timeout_dwork;
879
880 /* max number of simultaneous scans the FW supports */
881 unsigned int max_scans;
882
883 /* UMAC scan tracking */
884 u32 scan_uid_status[IWL_MVM_MAX_UMAC_SCANS];
885
886 /* start time of last scan in TSF of the mac that requested the scan */
887 u64 scan_start;
888
889 /* the vif that requested the current scan */
890 struct iwl_mvm_vif *scan_vif;
891
892 /* rx chain antennas set through debugfs for the scan command */
893 u8 scan_rx_ant;
894
895 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
896 /* broadcast filters to configure for each associated station */
897 const struct iwl_fw_bcast_filter *bcast_filters;
898 #ifdef CONFIG_IWLWIFI_DEBUGFS
899 struct {
900 bool override;
901 struct iwl_bcast_filter_cmd cmd;
902 } dbgfs_bcast_filtering;
903 #endif
904 #endif
905
906 /* Internal station */
907 struct iwl_mvm_int_sta aux_sta;
908 struct iwl_mvm_int_sta snif_sta;
909
910 bool last_ebs_successful;
911
912 u8 scan_last_antenna_idx; /* to toggle TX between antennas */
913 u8 mgmt_last_antenna_idx;
914
915 /* last smart fifo state that was successfully sent to firmware */
916 enum iwl_sf_state sf_state;
917
918 #ifdef CONFIG_IWLWIFI_DEBUGFS
919 struct dentry *debugfs_dir;
920 u32 dbgfs_sram_offset, dbgfs_sram_len;
921 u32 dbgfs_prph_reg_addr;
922 bool disable_power_off;
923 bool disable_power_off_d3;
924
925 bool scan_iter_notif_enabled;
926
927 struct debugfs_blob_wrapper nvm_hw_blob;
928 struct debugfs_blob_wrapper nvm_sw_blob;
929 struct debugfs_blob_wrapper nvm_calib_blob;
930 struct debugfs_blob_wrapper nvm_prod_blob;
931 struct debugfs_blob_wrapper nvm_phy_sku_blob;
932
933 struct iwl_mvm_frame_stats drv_rx_stats;
934 spinlock_t drv_stats_lock;
935 u16 dbgfs_rx_phyinfo;
936 #endif
937
938 struct iwl_mvm_phy_ctxt phy_ctxts[NUM_PHY_CTX];
939
940 struct list_head time_event_list;
941 spinlock_t time_event_lock;
942
943 /*
944 * A bitmap indicating the index of the key in use. The firmware
945 * can hold 16 keys at most. Reflect this fact.
946 */
947 unsigned long fw_key_table[BITS_TO_LONGS(STA_KEY_MAX_NUM)];
948 u8 fw_key_deleted[STA_KEY_MAX_NUM];
949
950 /* references taken by the driver and spinlock protecting them */
951 spinlock_t refs_lock;
952 u8 refs[IWL_MVM_REF_COUNT];
953
954 u8 vif_count;
955
956 /* -1 for always, 0 for never, >0 for that many times */
957 s8 fw_restart;
958
959 #ifdef CONFIG_IWLWIFI_LEDS
960 struct led_classdev led;
961 #endif
962
963 struct ieee80211_vif *p2p_device_vif;
964
965 #ifdef CONFIG_PM
966 struct wiphy_wowlan_support wowlan;
967 int gtk_ivlen, gtk_icvlen, ptk_ivlen, ptk_icvlen;
968
969 /* sched scan settings for net detect */
970 struct ieee80211_scan_ies nd_ies;
971 struct cfg80211_match_set *nd_match_sets;
972 int n_nd_match_sets;
973 struct ieee80211_channel **nd_channels;
974 int n_nd_channels;
975 bool net_detect;
976 #ifdef CONFIG_IWLWIFI_DEBUGFS
977 bool d3_wake_sysassert;
978 bool d3_test_active;
979 bool store_d3_resume_sram;
980 void *d3_resume_sram;
981 u32 d3_test_pme_ptr;
982 struct ieee80211_vif *keep_vif;
983 u32 last_netdetect_scans; /* no. of scans in the last net-detect wake */
984 #endif
985 #endif
986
987 /* d0i3 */
988 u8 d0i3_ap_sta_id;
989 bool d0i3_offloading;
990 struct work_struct d0i3_exit_work;
991 struct sk_buff_head d0i3_tx;
992 /* protect d0i3_suspend_flags */
993 struct mutex d0i3_suspend_mutex;
994 unsigned long d0i3_suspend_flags;
995 /* sync d0i3_tx queue and IWL_MVM_STATUS_IN_D0I3 status flag */
996 spinlock_t d0i3_tx_lock;
997 wait_queue_head_t d0i3_exit_waitq;
998 wait_queue_head_t rx_sync_waitq;
999
1000 /* BT-Coex */
1001 struct iwl_bt_coex_profile_notif last_bt_notif;
1002 struct iwl_bt_coex_ci_cmd last_bt_ci_cmd;
1003
1004 u8 bt_tx_prio;
1005 enum iwl_bt_force_ant_mode bt_force_ant_mode;
1006
1007 /* Aux ROC */
1008 struct list_head aux_roc_te_list;
1009
1010 /* Thermal Throttling and CTkill */
1011 struct iwl_mvm_tt_mgmt thermal_throttle;
1012 #ifdef CONFIG_THERMAL
1013 struct iwl_mvm_thermal_device tz_device;
1014 struct iwl_mvm_cooling_device cooling_dev;
1015 #endif
1016
1017 s32 temperature; /* Celsius */
1018 /*
1019 * Debug option to set the NIC temperature. This option makes the
1020 * driver think this is the actual NIC temperature, and ignore the
1021 * real temperature that is received from the fw
1022 */
1023 bool temperature_test; /* Debug test temperature is enabled */
1024
1025 unsigned long bt_coex_last_tcm_ts;
1026 struct iwl_mvm_tcm tcm;
1027
1028 u8 uapsd_noagg_bssid_write_idx;
1029 struct mac_address uapsd_noagg_bssids[IWL_MVM_UAPSD_NOAGG_BSSIDS_NUM]
1030 __aligned(2);
1031
1032 struct iwl_time_quota_cmd last_quota_cmd;
1033
1034 #ifdef CONFIG_NL80211_TESTMODE
1035 u32 noa_duration;
1036 struct ieee80211_vif *noa_vif;
1037 #endif
1038
1039 /* Tx queues */
1040 u16 aux_queue;
1041 u16 snif_queue;
1042 u16 probe_queue;
1043 u16 p2p_dev_queue;
1044
1045 /* Indicate if device power save is allowed */
1046 u8 ps_disabled; /* u8 instead of bool to ease debugfs_create_* usage */
1047 unsigned int max_amsdu_len; /* used for debugfs only */
1048
1049 struct ieee80211_vif __rcu *csa_vif;
1050 struct ieee80211_vif __rcu *csa_tx_blocked_vif;
1051 u8 csa_tx_block_bcn_timeout;
1052
1053 /* system time of last beacon (for AP/GO interface) */
1054 u32 ap_last_beacon_gp2;
1055
1056 /* indicates that we transmitted the last beacon */
1057 bool ibss_manager;
1058
1059 bool lar_regdom_set;
1060 enum iwl_mcc_source mcc_src;
1061
1062 /* TDLS channel switch data */
1063 struct {
1064 struct delayed_work dwork;
1065 enum iwl_mvm_tdls_cs_state state;
1066
1067 /*
1068 * Current cs sta - might be different from periodic cs peer
1069 * station. Value is meaningless when the cs-state is idle.
1070 */
1071 u8 cur_sta_id;
1072
1073 /* TDLS periodic channel-switch peer */
1074 struct {
1075 u8 sta_id;
1076 u8 op_class;
1077 bool initiator; /* are we the link initiator */
1078 struct cfg80211_chan_def chandef;
1079 struct sk_buff *skb; /* ch sw template */
1080 u32 ch_sw_tm_ie;
1081
1082 /* timestamp of last ch-sw request sent (GP2 time) */
1083 u32 sent_timestamp;
1084 } peer;
1085 } tdls_cs;
1086
1087
1088 u32 ciphers[IWL_MVM_NUM_CIPHERS];
1089 struct ieee80211_cipher_scheme cs[IWL_UCODE_MAX_CS];
1090 struct iwl_mvm_tof_data tof_data;
1091
1092 struct ieee80211_vif *nan_vif;
1093 #define IWL_MAX_BAID 32
1094 struct iwl_mvm_baid_data __rcu *baid_map[IWL_MAX_BAID];
1095
1096 /*
1097 * Drop beacons from other APs in AP mode when there are no connected
1098 * clients.
1099 */
1100 bool drop_bcn_ap_mode;
1101
1102 struct delayed_work cs_tx_unblock_dwork;
1103
1104 /* does a monitor vif exist (only one can exist hence bool) */
1105 bool monitor_on;
1106 #ifdef CONFIG_ACPI
1107 struct iwl_mvm_sar_profile sar_profiles[ACPI_SAR_PROFILE_NUM];
1108 struct iwl_mvm_geo_profile geo_profiles[ACPI_NUM_GEO_PROFILES];
1109 #endif
1110 };
1111
1112 /* Extract MVM priv from op_mode and _hw */
1113 #define IWL_OP_MODE_GET_MVM(_iwl_op_mode) \
1114 ((struct iwl_mvm *)(_iwl_op_mode)->op_mode_specific)
1115
1116 #define IWL_MAC80211_GET_MVM(_hw) \
1117 IWL_OP_MODE_GET_MVM((struct iwl_op_mode *)((_hw)->priv))
1118
1119 /**
1120 * enum iwl_mvm_status - MVM status bits
1121 * @IWL_MVM_STATUS_HW_RFKILL: HW RF-kill is asserted
1122 * @IWL_MVM_STATUS_HW_CTKILL: CT-kill is active
1123 * @IWL_MVM_STATUS_ROC_RUNNING: remain-on-channel is running
1124 * @IWL_MVM_STATUS_HW_RESTART_REQUESTED: HW restart was requested
1125 * @IWL_MVM_STATUS_IN_HW_RESTART: HW restart is active
1126 * @IWL_MVM_STATUS_IN_D0I3: NIC is in D0i3
1127 * @IWL_MVM_STATUS_ROC_AUX_RUNNING: AUX remain-on-channel is running
1128 * @IWL_MVM_STATUS_D3_RECONFIG: D3 reconfiguration is being done
1129 * @IWL_MVM_STATUS_FIRMWARE_RUNNING: firmware is running
1130 * @IWL_MVM_STATUS_NEED_FLUSH_P2P: need to flush P2P bcast STA
1131 */
1132 enum iwl_mvm_status {
1133 IWL_MVM_STATUS_HW_RFKILL,
1134 IWL_MVM_STATUS_HW_CTKILL,
1135 IWL_MVM_STATUS_ROC_RUNNING,
1136 IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1137 IWL_MVM_STATUS_IN_HW_RESTART,
1138 IWL_MVM_STATUS_IN_D0I3,
1139 IWL_MVM_STATUS_ROC_AUX_RUNNING,
1140 IWL_MVM_STATUS_D3_RECONFIG,
1141 IWL_MVM_STATUS_FIRMWARE_RUNNING,
1142 IWL_MVM_STATUS_NEED_FLUSH_P2P,
1143 };
1144
1145 /* Keep track of completed init configuration */
1146 enum iwl_mvm_init_status {
1147 IWL_MVM_INIT_STATUS_THERMAL_INIT_COMPLETE = BIT(0),
1148 IWL_MVM_INIT_STATUS_LEDS_INIT_COMPLETE = BIT(1),
1149 IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE = BIT(2),
1150 IWL_MVM_INIT_STATUS_TOF_INIT_COMPLETE = BIT(3),
1151 };
1152
iwl_mvm_is_radio_killed(struct iwl_mvm * mvm)1153 static inline bool iwl_mvm_is_radio_killed(struct iwl_mvm *mvm)
1154 {
1155 return test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status) ||
1156 test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1157 }
1158
iwl_mvm_is_radio_hw_killed(struct iwl_mvm * mvm)1159 static inline bool iwl_mvm_is_radio_hw_killed(struct iwl_mvm *mvm)
1160 {
1161 return test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1162 }
1163
iwl_mvm_firmware_running(struct iwl_mvm * mvm)1164 static inline bool iwl_mvm_firmware_running(struct iwl_mvm *mvm)
1165 {
1166 return test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1167 }
1168
1169 /* Must be called with rcu_read_lock() held and it can only be
1170 * released when mvmsta is not needed anymore.
1171 */
1172 static inline struct iwl_mvm_sta *
iwl_mvm_sta_from_staid_rcu(struct iwl_mvm * mvm,u8 sta_id)1173 iwl_mvm_sta_from_staid_rcu(struct iwl_mvm *mvm, u8 sta_id)
1174 {
1175 struct ieee80211_sta *sta;
1176
1177 if (sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))
1178 return NULL;
1179
1180 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1181
1182 /* This can happen if the station has been removed right now */
1183 if (IS_ERR_OR_NULL(sta))
1184 return NULL;
1185
1186 return iwl_mvm_sta_from_mac80211(sta);
1187 }
1188
1189 static inline struct iwl_mvm_sta *
iwl_mvm_sta_from_staid_protected(struct iwl_mvm * mvm,u8 sta_id)1190 iwl_mvm_sta_from_staid_protected(struct iwl_mvm *mvm, u8 sta_id)
1191 {
1192 struct ieee80211_sta *sta;
1193
1194 if (sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))
1195 return NULL;
1196
1197 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
1198 lockdep_is_held(&mvm->mutex));
1199
1200 /* This can happen if the station has been removed right now */
1201 if (IS_ERR_OR_NULL(sta))
1202 return NULL;
1203
1204 return iwl_mvm_sta_from_mac80211(sta);
1205 }
1206
iwl_mvm_is_d0i3_supported(struct iwl_mvm * mvm)1207 static inline bool iwl_mvm_is_d0i3_supported(struct iwl_mvm *mvm)
1208 {
1209 return !iwlwifi_mod_params.d0i3_disable &&
1210 fw_has_capa(&mvm->fw->ucode_capa,
1211 IWL_UCODE_TLV_CAPA_D0I3_SUPPORT);
1212 }
1213
iwl_mvm_is_adaptive_dwell_supported(struct iwl_mvm * mvm)1214 static inline bool iwl_mvm_is_adaptive_dwell_supported(struct iwl_mvm *mvm)
1215 {
1216 return fw_has_api(&mvm->fw->ucode_capa,
1217 IWL_UCODE_TLV_API_ADAPTIVE_DWELL);
1218 }
1219
iwl_mvm_is_adaptive_dwell_v2_supported(struct iwl_mvm * mvm)1220 static inline bool iwl_mvm_is_adaptive_dwell_v2_supported(struct iwl_mvm *mvm)
1221 {
1222 return fw_has_api(&mvm->fw->ucode_capa,
1223 IWL_UCODE_TLV_API_ADAPTIVE_DWELL_V2);
1224 }
1225
iwl_mvm_is_oce_supported(struct iwl_mvm * mvm)1226 static inline bool iwl_mvm_is_oce_supported(struct iwl_mvm *mvm)
1227 {
1228 /* OCE should never be enabled for LMAC scan FWs */
1229 return fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_OCE);
1230 }
1231
iwl_mvm_enter_d0i3_on_suspend(struct iwl_mvm * mvm)1232 static inline bool iwl_mvm_enter_d0i3_on_suspend(struct iwl_mvm *mvm)
1233 {
1234 /* For now we only use this mode to differentiate between
1235 * slave transports, which handle D0i3 entry in suspend by
1236 * themselves in conjunction with runtime PM D0i3. So, this
1237 * function is used to check whether we need to do anything
1238 * when entering suspend or if the transport layer has already
1239 * done it.
1240 */
1241 return (mvm->trans->system_pm_mode == IWL_PLAT_PM_MODE_D0I3) &&
1242 (mvm->trans->runtime_pm_mode != IWL_PLAT_PM_MODE_D0I3);
1243 }
1244
iwl_mvm_is_dqa_data_queue(struct iwl_mvm * mvm,u8 queue)1245 static inline bool iwl_mvm_is_dqa_data_queue(struct iwl_mvm *mvm, u8 queue)
1246 {
1247 return (queue >= IWL_MVM_DQA_MIN_DATA_QUEUE) &&
1248 (queue <= IWL_MVM_DQA_MAX_DATA_QUEUE);
1249 }
1250
iwl_mvm_is_dqa_mgmt_queue(struct iwl_mvm * mvm,u8 queue)1251 static inline bool iwl_mvm_is_dqa_mgmt_queue(struct iwl_mvm *mvm, u8 queue)
1252 {
1253 return (queue >= IWL_MVM_DQA_MIN_MGMT_QUEUE) &&
1254 (queue <= IWL_MVM_DQA_MAX_MGMT_QUEUE);
1255 }
1256
iwl_mvm_is_lar_supported(struct iwl_mvm * mvm)1257 static inline bool iwl_mvm_is_lar_supported(struct iwl_mvm *mvm)
1258 {
1259 bool nvm_lar = mvm->nvm_data->lar_enabled;
1260 bool tlv_lar = fw_has_capa(&mvm->fw->ucode_capa,
1261 IWL_UCODE_TLV_CAPA_LAR_SUPPORT);
1262
1263 if (iwlwifi_mod_params.lar_disable)
1264 return false;
1265
1266 /*
1267 * Enable LAR only if it is supported by the FW (TLV) &&
1268 * enabled in the NVM
1269 */
1270 if (mvm->cfg->nvm_type == IWL_NVM_EXT)
1271 return nvm_lar && tlv_lar;
1272 else
1273 return tlv_lar;
1274 }
1275
iwl_mvm_is_wifi_mcc_supported(struct iwl_mvm * mvm)1276 static inline bool iwl_mvm_is_wifi_mcc_supported(struct iwl_mvm *mvm)
1277 {
1278 return fw_has_api(&mvm->fw->ucode_capa,
1279 IWL_UCODE_TLV_API_WIFI_MCC_UPDATE) ||
1280 fw_has_capa(&mvm->fw->ucode_capa,
1281 IWL_UCODE_TLV_CAPA_LAR_MULTI_MCC);
1282 }
1283
iwl_mvm_bt_is_rrc_supported(struct iwl_mvm * mvm)1284 static inline bool iwl_mvm_bt_is_rrc_supported(struct iwl_mvm *mvm)
1285 {
1286 return fw_has_capa(&mvm->fw->ucode_capa,
1287 IWL_UCODE_TLV_CAPA_BT_COEX_RRC) &&
1288 IWL_MVM_BT_COEX_RRC;
1289 }
1290
iwl_mvm_is_csum_supported(struct iwl_mvm * mvm)1291 static inline bool iwl_mvm_is_csum_supported(struct iwl_mvm *mvm)
1292 {
1293 return fw_has_capa(&mvm->fw->ucode_capa,
1294 IWL_UCODE_TLV_CAPA_CSUM_SUPPORT) &&
1295 !IWL_MVM_HW_CSUM_DISABLE;
1296 }
1297
iwl_mvm_is_mplut_supported(struct iwl_mvm * mvm)1298 static inline bool iwl_mvm_is_mplut_supported(struct iwl_mvm *mvm)
1299 {
1300 return fw_has_capa(&mvm->fw->ucode_capa,
1301 IWL_UCODE_TLV_CAPA_BT_MPLUT_SUPPORT) &&
1302 IWL_MVM_BT_COEX_MPLUT;
1303 }
1304
1305 static inline
iwl_mvm_is_p2p_scm_uapsd_supported(struct iwl_mvm * mvm)1306 bool iwl_mvm_is_p2p_scm_uapsd_supported(struct iwl_mvm *mvm)
1307 {
1308 return fw_has_capa(&mvm->fw->ucode_capa,
1309 IWL_UCODE_TLV_CAPA_P2P_SCM_UAPSD) &&
1310 !(iwlwifi_mod_params.uapsd_disable &
1311 IWL_DISABLE_UAPSD_P2P_CLIENT);
1312 }
1313
iwl_mvm_has_new_rx_api(struct iwl_mvm * mvm)1314 static inline bool iwl_mvm_has_new_rx_api(struct iwl_mvm *mvm)
1315 {
1316 return fw_has_capa(&mvm->fw->ucode_capa,
1317 IWL_UCODE_TLV_CAPA_MULTI_QUEUE_RX_SUPPORT);
1318 }
1319
iwl_mvm_has_new_tx_api(struct iwl_mvm * mvm)1320 static inline bool iwl_mvm_has_new_tx_api(struct iwl_mvm *mvm)
1321 {
1322 /* TODO - replace with TLV once defined */
1323 return mvm->trans->cfg->use_tfh;
1324 }
1325
iwl_mvm_has_unified_ucode(struct iwl_mvm * mvm)1326 static inline bool iwl_mvm_has_unified_ucode(struct iwl_mvm *mvm)
1327 {
1328 /* TODO - better define this */
1329 return mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22000;
1330 }
1331
iwl_mvm_is_cdb_supported(struct iwl_mvm * mvm)1332 static inline bool iwl_mvm_is_cdb_supported(struct iwl_mvm *mvm)
1333 {
1334 /*
1335 * TODO:
1336 * The issue of how to determine CDB APIs and usage is still not fully
1337 * defined.
1338 * There is a compilation for CDB and non-CDB FW, but there may
1339 * be also runtime check.
1340 * For now there is a TLV for checking compilation mode, but a
1341 * runtime check will also have to be here - once defined.
1342 */
1343 return fw_has_capa(&mvm->fw->ucode_capa,
1344 IWL_UCODE_TLV_CAPA_CDB_SUPPORT);
1345 }
1346
iwl_mvm_cdb_scan_api(struct iwl_mvm * mvm)1347 static inline bool iwl_mvm_cdb_scan_api(struct iwl_mvm *mvm)
1348 {
1349 /*
1350 * TODO: should this be the same as iwl_mvm_is_cdb_supported()?
1351 * but then there's a little bit of code in scan that won't make
1352 * any sense...
1353 */
1354 return mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22000;
1355 }
1356
iwl_mvm_has_new_rx_stats_api(struct iwl_mvm * mvm)1357 static inline bool iwl_mvm_has_new_rx_stats_api(struct iwl_mvm *mvm)
1358 {
1359 return fw_has_api(&mvm->fw->ucode_capa,
1360 IWL_UCODE_TLV_API_NEW_RX_STATS);
1361 }
1362
iwl_mvm_has_quota_low_latency(struct iwl_mvm * mvm)1363 static inline bool iwl_mvm_has_quota_low_latency(struct iwl_mvm *mvm)
1364 {
1365 return fw_has_api(&mvm->fw->ucode_capa,
1366 IWL_UCODE_TLV_API_QUOTA_LOW_LATENCY);
1367 }
1368
iwl_mvm_has_tlc_offload(const struct iwl_mvm * mvm)1369 static inline bool iwl_mvm_has_tlc_offload(const struct iwl_mvm *mvm)
1370 {
1371 return fw_has_capa(&mvm->fw->ucode_capa,
1372 IWL_UCODE_TLV_CAPA_TLC_OFFLOAD);
1373 }
1374
1375 static inline struct agg_tx_status *
iwl_mvm_get_agg_status(struct iwl_mvm * mvm,void * tx_resp)1376 iwl_mvm_get_agg_status(struct iwl_mvm *mvm, void *tx_resp)
1377 {
1378 if (iwl_mvm_has_new_tx_api(mvm))
1379 return &((struct iwl_mvm_tx_resp *)tx_resp)->status;
1380 else
1381 return ((struct iwl_mvm_tx_resp_v3 *)tx_resp)->status;
1382 }
1383
iwl_mvm_is_tt_in_fw(struct iwl_mvm * mvm)1384 static inline bool iwl_mvm_is_tt_in_fw(struct iwl_mvm *mvm)
1385 {
1386 #ifdef CONFIG_THERMAL
1387 /* these two TLV are redundant since the responsibility to CT-kill by
1388 * FW happens only after we send at least one command of
1389 * temperature THs report.
1390 */
1391 return fw_has_capa(&mvm->fw->ucode_capa,
1392 IWL_UCODE_TLV_CAPA_CT_KILL_BY_FW) &&
1393 fw_has_capa(&mvm->fw->ucode_capa,
1394 IWL_UCODE_TLV_CAPA_TEMP_THS_REPORT_SUPPORT);
1395 #else /* CONFIG_THERMAL */
1396 return false;
1397 #endif /* CONFIG_THERMAL */
1398 }
1399
iwl_mvm_is_ctdp_supported(struct iwl_mvm * mvm)1400 static inline bool iwl_mvm_is_ctdp_supported(struct iwl_mvm *mvm)
1401 {
1402 return fw_has_capa(&mvm->fw->ucode_capa,
1403 IWL_UCODE_TLV_CAPA_CTDP_SUPPORT);
1404 }
1405
1406 extern const u8 iwl_mvm_ac_to_tx_fifo[];
1407 extern const u8 iwl_mvm_ac_to_gen2_tx_fifo[];
1408
iwl_mvm_mac_ac_to_tx_fifo(struct iwl_mvm * mvm,enum ieee80211_ac_numbers ac)1409 static inline u8 iwl_mvm_mac_ac_to_tx_fifo(struct iwl_mvm *mvm,
1410 enum ieee80211_ac_numbers ac)
1411 {
1412 return iwl_mvm_has_new_tx_api(mvm) ?
1413 iwl_mvm_ac_to_gen2_tx_fifo[ac] : iwl_mvm_ac_to_tx_fifo[ac];
1414 }
1415
1416 struct iwl_rate_info {
1417 u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
1418 u8 plcp_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */
1419 u8 plcp_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */
1420 u8 plcp_mimo3; /* uCode API: IWL_RATE_MIMO3_6M_PLCP, etc. */
1421 u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
1422 };
1423
1424 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm);
1425 int __iwl_mvm_mac_start(struct iwl_mvm *mvm);
1426
1427 /******************
1428 * MVM Methods
1429 ******************/
1430 /* uCode */
1431 int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm);
1432
1433 /* Utils */
1434 int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
1435 enum nl80211_band band);
1436 void iwl_mvm_hwrate_to_tx_rate(u32 rate_n_flags,
1437 enum nl80211_band band,
1438 struct ieee80211_tx_rate *r);
1439 u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx);
1440 void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm);
1441 u8 first_antenna(u8 mask);
1442 u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx);
1443 void iwl_mvm_get_sync_time(struct iwl_mvm *mvm, u32 *gp2, u64 *boottime);
1444
1445 /* Tx / Host Commands */
1446 int __must_check iwl_mvm_send_cmd(struct iwl_mvm *mvm,
1447 struct iwl_host_cmd *cmd);
1448 int __must_check iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u32 id,
1449 u32 flags, u16 len, const void *data);
1450 int __must_check iwl_mvm_send_cmd_status(struct iwl_mvm *mvm,
1451 struct iwl_host_cmd *cmd,
1452 u32 *status);
1453 int __must_check iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u32 id,
1454 u16 len, const void *data,
1455 u32 *status);
1456 int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
1457 struct ieee80211_sta *sta);
1458 int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb);
1459 void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb,
1460 struct iwl_tx_cmd *tx_cmd,
1461 struct ieee80211_tx_info *info, u8 sta_id);
1462 void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm, struct iwl_tx_cmd *tx_cmd,
1463 struct ieee80211_tx_info *info,
1464 struct ieee80211_sta *sta, __le16 fc);
1465 #ifdef CONFIG_IWLWIFI_DEBUG
1466 const char *iwl_mvm_get_tx_fail_reason(u32 status);
1467 #else
iwl_mvm_get_tx_fail_reason(u32 status)1468 static inline const char *iwl_mvm_get_tx_fail_reason(u32 status) { return ""; }
1469 #endif
1470 int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, u32 flags);
1471 int iwl_mvm_flush_sta(struct iwl_mvm *mvm, void *sta, bool internal, u32 flags);
1472 int iwl_mvm_flush_sta_tids(struct iwl_mvm *mvm, u32 sta_id,
1473 u16 tids, u32 flags);
1474
1475 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm);
1476
iwl_mvm_set_tx_cmd_ccmp(struct ieee80211_tx_info * info,struct iwl_tx_cmd * tx_cmd)1477 static inline void iwl_mvm_set_tx_cmd_ccmp(struct ieee80211_tx_info *info,
1478 struct iwl_tx_cmd *tx_cmd)
1479 {
1480 struct ieee80211_key_conf *keyconf = info->control.hw_key;
1481
1482 tx_cmd->sec_ctl = TX_CMD_SEC_CCM;
1483 memcpy(tx_cmd->key, keyconf->key, keyconf->keylen);
1484 }
1485
iwl_mvm_wait_for_async_handlers(struct iwl_mvm * mvm)1486 static inline void iwl_mvm_wait_for_async_handlers(struct iwl_mvm *mvm)
1487 {
1488 flush_work(&mvm->async_handlers_wk);
1489 }
1490
1491 /* Statistics */
1492 void iwl_mvm_handle_rx_statistics(struct iwl_mvm *mvm,
1493 struct iwl_rx_packet *pkt);
1494 void iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
1495 struct iwl_rx_cmd_buffer *rxb);
1496 int iwl_mvm_request_statistics(struct iwl_mvm *mvm, bool clear);
1497 void iwl_mvm_accu_radio_stats(struct iwl_mvm *mvm);
1498
1499 /* NVM */
1500 int iwl_nvm_init(struct iwl_mvm *mvm);
1501 int iwl_mvm_load_nvm_to_nic(struct iwl_mvm *mvm);
1502
iwl_mvm_get_valid_tx_ant(struct iwl_mvm * mvm)1503 static inline u8 iwl_mvm_get_valid_tx_ant(struct iwl_mvm *mvm)
1504 {
1505 return mvm->nvm_data && mvm->nvm_data->valid_tx_ant ?
1506 mvm->fw->valid_tx_ant & mvm->nvm_data->valid_tx_ant :
1507 mvm->fw->valid_tx_ant;
1508 }
1509
iwl_mvm_get_valid_rx_ant(struct iwl_mvm * mvm)1510 static inline u8 iwl_mvm_get_valid_rx_ant(struct iwl_mvm *mvm)
1511 {
1512 return mvm->nvm_data && mvm->nvm_data->valid_rx_ant ?
1513 mvm->fw->valid_rx_ant & mvm->nvm_data->valid_rx_ant :
1514 mvm->fw->valid_rx_ant;
1515 }
1516
iwl_mvm_get_phy_config(struct iwl_mvm * mvm)1517 static inline u32 iwl_mvm_get_phy_config(struct iwl_mvm *mvm)
1518 {
1519 u32 phy_config = ~(FW_PHY_CFG_TX_CHAIN |
1520 FW_PHY_CFG_RX_CHAIN);
1521 u32 valid_rx_ant = iwl_mvm_get_valid_rx_ant(mvm);
1522 u32 valid_tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
1523
1524 phy_config |= valid_tx_ant << FW_PHY_CFG_TX_CHAIN_POS |
1525 valid_rx_ant << FW_PHY_CFG_RX_CHAIN_POS;
1526
1527 return mvm->fw->phy_config & phy_config;
1528 }
1529
1530 int iwl_mvm_up(struct iwl_mvm *mvm);
1531 int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm);
1532
1533 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm);
1534 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1535 struct iwl_bcast_filter_cmd *cmd);
1536
1537 /*
1538 * FW notifications / CMD responses handlers
1539 * Convention: iwl_mvm_rx_<NAME OF THE CMD>
1540 */
1541 void iwl_mvm_rx_rx_phy_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1542 void iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct napi_struct *napi,
1543 struct iwl_rx_cmd_buffer *rxb);
1544 void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
1545 struct iwl_rx_cmd_buffer *rxb, int queue);
1546 void iwl_mvm_rx_frame_release(struct iwl_mvm *mvm, struct napi_struct *napi,
1547 struct iwl_rx_cmd_buffer *rxb, int queue);
1548 int iwl_mvm_notify_rx_queue(struct iwl_mvm *mvm, u32 rxq_mask,
1549 const u8 *data, u32 count);
1550 void iwl_mvm_rx_queue_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
1551 int queue);
1552 void iwl_mvm_rx_tx_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1553 void iwl_mvm_mfu_assert_dump_notif(struct iwl_mvm *mvm,
1554 struct iwl_rx_cmd_buffer *rxb);
1555 void iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1556 void iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm,
1557 struct iwl_rx_cmd_buffer *rxb);
1558 void iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1559 void iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
1560 struct iwl_rx_cmd_buffer *rxb);
1561 void iwl_mvm_rx_mfuart_notif(struct iwl_mvm *mvm,
1562 struct iwl_rx_cmd_buffer *rxb);
1563 void iwl_mvm_rx_shared_mem_cfg_notif(struct iwl_mvm *mvm,
1564 struct iwl_rx_cmd_buffer *rxb);
1565
1566 /* MVM PHY */
1567 int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
1568 struct cfg80211_chan_def *chandef,
1569 u8 chains_static, u8 chains_dynamic);
1570 int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
1571 struct cfg80211_chan_def *chandef,
1572 u8 chains_static, u8 chains_dynamic);
1573 void iwl_mvm_phy_ctxt_ref(struct iwl_mvm *mvm,
1574 struct iwl_mvm_phy_ctxt *ctxt);
1575 void iwl_mvm_phy_ctxt_unref(struct iwl_mvm *mvm,
1576 struct iwl_mvm_phy_ctxt *ctxt);
1577 int iwl_mvm_phy_ctx_count(struct iwl_mvm *mvm);
1578 u8 iwl_mvm_get_channel_width(struct cfg80211_chan_def *chandef);
1579 u8 iwl_mvm_get_ctrl_pos(struct cfg80211_chan_def *chandef);
1580
1581 /* MAC (virtual interface) programming */
1582 int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
1583 int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
1584 int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1585 bool force_assoc_off, const u8 *bssid_override);
1586 int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
1587 u32 iwl_mvm_mac_get_queues_mask(struct ieee80211_vif *vif);
1588 int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm,
1589 struct ieee80211_vif *vif);
1590 void iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm,
1591 struct iwl_rx_cmd_buffer *rxb);
1592 void iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm,
1593 struct iwl_rx_cmd_buffer *rxb);
1594 void iwl_mvm_rx_stored_beacon_notif(struct iwl_mvm *mvm,
1595 struct iwl_rx_cmd_buffer *rxb);
1596 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1597 struct iwl_rx_cmd_buffer *rxb);
1598 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1599 void iwl_mvm_window_status_notif(struct iwl_mvm *mvm,
1600 struct iwl_rx_cmd_buffer *rxb);
1601 void iwl_mvm_mac_ctxt_recalc_tsf_id(struct iwl_mvm *mvm,
1602 struct ieee80211_vif *vif);
1603 unsigned long iwl_mvm_get_used_hw_queues(struct iwl_mvm *mvm,
1604 struct ieee80211_vif *exclude_vif);
1605 void iwl_mvm_channel_switch_noa_notif(struct iwl_mvm *mvm,
1606 struct iwl_rx_cmd_buffer *rxb);
1607 /* Bindings */
1608 int iwl_mvm_binding_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
1609 int iwl_mvm_binding_remove_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
1610
1611 /* Quota management */
iwl_mvm_quota_cmd_size(struct iwl_mvm * mvm)1612 static inline size_t iwl_mvm_quota_cmd_size(struct iwl_mvm *mvm)
1613 {
1614 return iwl_mvm_has_quota_low_latency(mvm) ?
1615 sizeof(struct iwl_time_quota_cmd) :
1616 sizeof(struct iwl_time_quota_cmd_v1);
1617 }
1618
1619 static inline struct iwl_time_quota_data
iwl_mvm_quota_cmd_get_quota(struct iwl_mvm * mvm,struct iwl_time_quota_cmd * cmd,int i)1620 *iwl_mvm_quota_cmd_get_quota(struct iwl_mvm *mvm,
1621 struct iwl_time_quota_cmd *cmd,
1622 int i)
1623 {
1624 struct iwl_time_quota_data_v1 *quotas;
1625
1626 if (iwl_mvm_has_quota_low_latency(mvm))
1627 return &cmd->quotas[i];
1628
1629 quotas = (struct iwl_time_quota_data_v1 *)cmd->quotas;
1630 return (struct iwl_time_quota_data *)"as[i];
1631 }
1632
1633 int iwl_mvm_update_quotas(struct iwl_mvm *mvm, bool force_upload,
1634 struct ieee80211_vif *disabled_vif);
1635
1636 /* Scanning */
1637 int iwl_mvm_reg_scan_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1638 struct cfg80211_scan_request *req,
1639 struct ieee80211_scan_ies *ies);
1640 int iwl_mvm_scan_size(struct iwl_mvm *mvm);
1641 int iwl_mvm_scan_stop(struct iwl_mvm *mvm, int type, bool notify);
1642 int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm);
1643 void iwl_mvm_report_scan_aborted(struct iwl_mvm *mvm);
1644 void iwl_mvm_scan_timeout_wk(struct work_struct *work);
1645
1646 /* Scheduled scan */
1647 void iwl_mvm_rx_lmac_scan_complete_notif(struct iwl_mvm *mvm,
1648 struct iwl_rx_cmd_buffer *rxb);
1649 void iwl_mvm_rx_lmac_scan_iter_complete_notif(struct iwl_mvm *mvm,
1650 struct iwl_rx_cmd_buffer *rxb);
1651 int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
1652 struct ieee80211_vif *vif,
1653 struct cfg80211_sched_scan_request *req,
1654 struct ieee80211_scan_ies *ies,
1655 int type);
1656 void iwl_mvm_rx_scan_match_found(struct iwl_mvm *mvm,
1657 struct iwl_rx_cmd_buffer *rxb);
1658
1659 /* UMAC scan */
1660 int iwl_mvm_config_scan(struct iwl_mvm *mvm);
1661 void iwl_mvm_rx_umac_scan_complete_notif(struct iwl_mvm *mvm,
1662 struct iwl_rx_cmd_buffer *rxb);
1663 void iwl_mvm_rx_umac_scan_iter_complete_notif(struct iwl_mvm *mvm,
1664 struct iwl_rx_cmd_buffer *rxb);
1665
1666 /* MVM debugfs */
1667 #ifdef CONFIG_IWLWIFI_DEBUGFS
1668 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir);
1669 void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
1670 void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
1671 #else
iwl_mvm_dbgfs_register(struct iwl_mvm * mvm,struct dentry * dbgfs_dir)1672 static inline int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm,
1673 struct dentry *dbgfs_dir)
1674 {
1675 return 0;
1676 }
1677 static inline void
iwl_mvm_vif_dbgfs_register(struct iwl_mvm * mvm,struct ieee80211_vif * vif)1678 iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1679 {
1680 }
1681 static inline void
iwl_mvm_vif_dbgfs_clean(struct iwl_mvm * mvm,struct ieee80211_vif * vif)1682 iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1683 {
1684 }
1685 #endif /* CONFIG_IWLWIFI_DEBUGFS */
1686
1687 /* rate scaling */
1688 int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init);
1689 void iwl_mvm_update_frame_stats(struct iwl_mvm *mvm, u32 rate, bool agg);
1690 int rs_pretty_print_rate(char *buf, int bufsz, const u32 rate);
1691 void rs_update_last_rssi(struct iwl_mvm *mvm,
1692 struct iwl_mvm_sta *mvmsta,
1693 struct ieee80211_rx_status *rx_status);
1694
1695 /* power management */
1696 int iwl_mvm_power_update_device(struct iwl_mvm *mvm);
1697 int iwl_mvm_power_update_mac(struct iwl_mvm *mvm);
1698 int iwl_mvm_power_update_ps(struct iwl_mvm *mvm);
1699 int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1700 char *buf, int bufsz);
1701
1702 void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
1703 void iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm,
1704 struct iwl_rx_cmd_buffer *rxb);
1705
1706 #ifdef CONFIG_IWLWIFI_LEDS
1707 int iwl_mvm_leds_init(struct iwl_mvm *mvm);
1708 void iwl_mvm_leds_exit(struct iwl_mvm *mvm);
1709 void iwl_mvm_leds_sync(struct iwl_mvm *mvm);
1710 #else
iwl_mvm_leds_init(struct iwl_mvm * mvm)1711 static inline int iwl_mvm_leds_init(struct iwl_mvm *mvm)
1712 {
1713 return 0;
1714 }
iwl_mvm_leds_exit(struct iwl_mvm * mvm)1715 static inline void iwl_mvm_leds_exit(struct iwl_mvm *mvm)
1716 {
1717 }
iwl_mvm_leds_sync(struct iwl_mvm * mvm)1718 static inline void iwl_mvm_leds_sync(struct iwl_mvm *mvm)
1719 {
1720 }
1721 #endif
1722
1723 /* D3 (WoWLAN, NetDetect) */
1724 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan);
1725 int iwl_mvm_resume(struct ieee80211_hw *hw);
1726 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled);
1727 void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
1728 struct ieee80211_vif *vif,
1729 struct cfg80211_gtk_rekey_data *data);
1730 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
1731 struct ieee80211_vif *vif,
1732 struct inet6_dev *idev);
1733 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
1734 struct ieee80211_vif *vif, int idx);
1735 extern const struct file_operations iwl_dbgfs_d3_test_ops;
1736 #ifdef CONFIG_PM
1737 int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
1738 struct ieee80211_vif *vif,
1739 bool host_awake,
1740 u32 cmd_flags);
1741 void iwl_mvm_d0i3_update_keys(struct iwl_mvm *mvm,
1742 struct ieee80211_vif *vif,
1743 struct iwl_wowlan_status *status);
1744 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm,
1745 struct ieee80211_vif *vif);
1746 #else
iwl_mvm_wowlan_config_key_params(struct iwl_mvm * mvm,struct ieee80211_vif * vif,bool host_awake,u32 cmd_flags)1747 static inline int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
1748 struct ieee80211_vif *vif,
1749 bool host_awake,
1750 u32 cmd_flags)
1751 {
1752 return 0;
1753 }
1754
iwl_mvm_d0i3_update_keys(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct iwl_wowlan_status * status)1755 static inline void iwl_mvm_d0i3_update_keys(struct iwl_mvm *mvm,
1756 struct ieee80211_vif *vif,
1757 struct iwl_wowlan_status *status)
1758 {
1759 }
1760
1761 static inline void
iwl_mvm_set_last_nonqos_seq(struct iwl_mvm * mvm,struct ieee80211_vif * vif)1762 iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
1763 {
1764 }
1765 #endif
1766 void iwl_mvm_set_wowlan_qos_seq(struct iwl_mvm_sta *mvm_ap_sta,
1767 struct iwl_wowlan_config_cmd *cmd);
1768 int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm,
1769 struct ieee80211_vif *vif,
1770 bool disable_offloading,
1771 bool offload_ns,
1772 u32 cmd_flags);
1773
1774 /* D0i3 */
1775 void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type);
1776 void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type);
1777 int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type);
1778 bool iwl_mvm_ref_taken(struct iwl_mvm *mvm);
1779 void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq);
1780 int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode);
1781 int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode);
1782 int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm);
1783
1784 /* BT Coex */
1785 int iwl_mvm_send_bt_init_conf(struct iwl_mvm *mvm);
1786 void iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
1787 struct iwl_rx_cmd_buffer *rxb);
1788 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1789 enum ieee80211_rssi_event_data);
1790 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm);
1791 u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm,
1792 struct ieee80211_sta *sta);
1793 bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
1794 struct ieee80211_sta *sta);
1795 bool iwl_mvm_bt_coex_is_ant_avail(struct iwl_mvm *mvm, u8 ant);
1796 bool iwl_mvm_bt_coex_is_shared_ant_avail(struct iwl_mvm *mvm);
1797 bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm,
1798 enum nl80211_band band);
1799 u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
1800 struct ieee80211_tx_info *info, u8 ac);
1801
1802 /* beacon filtering */
1803 #ifdef CONFIG_IWLWIFI_DEBUGFS
1804 void
1805 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
1806 struct iwl_beacon_filter_cmd *cmd);
1807 #else
1808 static inline void
iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif * vif,struct iwl_beacon_filter_cmd * cmd)1809 iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif,
1810 struct iwl_beacon_filter_cmd *cmd)
1811 {}
1812 #endif
1813 int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm *mvm,
1814 struct ieee80211_vif *vif,
1815 bool enable, u32 flags);
1816 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
1817 struct ieee80211_vif *vif,
1818 u32 flags);
1819 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
1820 struct ieee80211_vif *vif,
1821 u32 flags);
1822 /* SMPS */
1823 void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1824 enum iwl_mvm_smps_type_request req_type,
1825 enum ieee80211_smps_mode smps_request);
1826 bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm);
1827
1828 /* Low latency */
1829 int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1830 bool low_latency,
1831 enum iwl_mvm_low_latency_cause cause);
1832 /* get SystemLowLatencyMode - only needed for beacon threshold? */
1833 bool iwl_mvm_low_latency(struct iwl_mvm *mvm);
1834 bool iwl_mvm_low_latency_band(struct iwl_mvm *mvm, enum nl80211_band band);
1835
1836 /* get VMACLowLatencyMode */
iwl_mvm_vif_low_latency(struct iwl_mvm_vif * mvmvif)1837 static inline bool iwl_mvm_vif_low_latency(struct iwl_mvm_vif *mvmvif)
1838 {
1839 /*
1840 * should this consider associated/active/... state?
1841 *
1842 * Normally low-latency should only be active on interfaces
1843 * that are active, but at least with debugfs it can also be
1844 * enabled on interfaces that aren't active. However, when
1845 * interface aren't active then they aren't added into the
1846 * binding, so this has no real impact. For now, just return
1847 * the current desired low-latency state.
1848 */
1849 return mvmvif->low_latency;
1850 }
1851
1852 static inline
iwl_mvm_vif_set_low_latency(struct iwl_mvm_vif * mvmvif,bool set,enum iwl_mvm_low_latency_cause cause)1853 void iwl_mvm_vif_set_low_latency(struct iwl_mvm_vif *mvmvif, bool set,
1854 enum iwl_mvm_low_latency_cause cause)
1855 {
1856 if (set)
1857 mvmvif->low_latency |= cause;
1858 else
1859 mvmvif->low_latency &= ~cause;
1860 }
1861
1862 /* hw scheduler queue config */
1863 bool iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue,
1864 u16 ssn, const struct iwl_trans_txq_scd_cfg *cfg,
1865 unsigned int wdg_timeout);
1866 int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, int mac80211_queue,
1867 u8 sta_id, u8 tid, unsigned int timeout);
1868
1869 int iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue,
1870 u8 tid, u8 flags);
1871 int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 sta_id, u8 minq, u8 maxq);
1872
1873 /* Return a bitmask with all the hw supported queues, except for the
1874 * command queue, which can't be flushed.
1875 */
iwl_mvm_flushable_queues(struct iwl_mvm * mvm)1876 static inline u32 iwl_mvm_flushable_queues(struct iwl_mvm *mvm)
1877 {
1878 return ((BIT(mvm->cfg->base_params->num_of_queues) - 1) &
1879 ~BIT(IWL_MVM_DQA_CMD_QUEUE));
1880 }
1881
iwl_mvm_stop_device(struct iwl_mvm * mvm)1882 static inline void iwl_mvm_stop_device(struct iwl_mvm *mvm)
1883 {
1884 iwl_fw_cancel_timestamp(&mvm->fwrt);
1885 iwl_free_fw_paging(&mvm->fwrt);
1886 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1887 iwl_fw_dump_conf_clear(&mvm->fwrt);
1888 iwl_trans_stop_device(mvm->trans);
1889 }
1890
1891 /* Stop/start all mac queues in a given bitmap */
1892 void iwl_mvm_start_mac_queues(struct iwl_mvm *mvm, unsigned long mq);
1893 void iwl_mvm_stop_mac_queues(struct iwl_mvm *mvm, unsigned long mq);
1894
1895 /* Re-configure the SCD for a queue that has already been configured */
1896 int iwl_mvm_reconfig_scd(struct iwl_mvm *mvm, int queue, int fifo, int sta_id,
1897 int tid, int frame_limit, u16 ssn);
1898
1899 /* Thermal management and CT-kill */
1900 void iwl_mvm_tt_tx_backoff(struct iwl_mvm *mvm, u32 backoff);
1901 void iwl_mvm_tt_temp_changed(struct iwl_mvm *mvm, u32 temp);
1902 void iwl_mvm_temp_notif(struct iwl_mvm *mvm,
1903 struct iwl_rx_cmd_buffer *rxb);
1904 void iwl_mvm_tt_handler(struct iwl_mvm *mvm);
1905 void iwl_mvm_thermal_initialize(struct iwl_mvm *mvm, u32 min_backoff);
1906 void iwl_mvm_thermal_exit(struct iwl_mvm *mvm);
1907 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state);
1908 int iwl_mvm_get_temp(struct iwl_mvm *mvm, s32 *temp);
1909 void iwl_mvm_ct_kill_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1910 void iwl_mvm_enter_ctkill(struct iwl_mvm *mvm);
1911 int iwl_mvm_send_temp_report_ths_cmd(struct iwl_mvm *mvm);
1912 int iwl_mvm_ctdp_command(struct iwl_mvm *mvm, u32 op, u32 budget);
1913
1914 /* Location Aware Regulatory */
1915 struct iwl_mcc_update_resp *
1916 iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2,
1917 enum iwl_mcc_source src_id);
1918 int iwl_mvm_init_mcc(struct iwl_mvm *mvm);
1919 void iwl_mvm_rx_chub_update_mcc(struct iwl_mvm *mvm,
1920 struct iwl_rx_cmd_buffer *rxb);
1921 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
1922 const char *alpha2,
1923 enum iwl_mcc_source src_id,
1924 bool *changed);
1925 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
1926 bool *changed);
1927 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm);
1928 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm);
1929
1930 /* smart fifo */
1931 int iwl_mvm_sf_update(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1932 bool added_vif);
1933
1934 /* TDLS */
1935
1936 /*
1937 * We use TID 4 (VI) as a FW-used-only TID when TDLS connections are present.
1938 * This TID is marked as used vs the AP and all connected TDLS peers.
1939 */
1940 #define IWL_MVM_TDLS_FW_TID 4
1941
1942 int iwl_mvm_tdls_sta_count(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
1943 void iwl_mvm_teardown_tdls_peers(struct iwl_mvm *mvm);
1944 void iwl_mvm_recalc_tdls_state(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1945 bool sta_added);
1946 void iwl_mvm_mac_mgd_protect_tdls_discover(struct ieee80211_hw *hw,
1947 struct ieee80211_vif *vif);
1948 int iwl_mvm_tdls_channel_switch(struct ieee80211_hw *hw,
1949 struct ieee80211_vif *vif,
1950 struct ieee80211_sta *sta, u8 oper_class,
1951 struct cfg80211_chan_def *chandef,
1952 struct sk_buff *tmpl_skb, u32 ch_sw_tm_ie);
1953 void iwl_mvm_tdls_recv_channel_switch(struct ieee80211_hw *hw,
1954 struct ieee80211_vif *vif,
1955 struct ieee80211_tdls_ch_sw_params *params);
1956 void iwl_mvm_tdls_cancel_channel_switch(struct ieee80211_hw *hw,
1957 struct ieee80211_vif *vif,
1958 struct ieee80211_sta *sta);
1959 void iwl_mvm_rx_tdls_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1960 void iwl_mvm_tdls_ch_switch_work(struct work_struct *work);
1961
1962 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
1963 struct iwl_mvm_internal_rxq_notif *notif,
1964 u32 size);
1965 void iwl_mvm_reorder_timer_expired(struct timer_list *t);
1966 struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm);
1967 bool iwl_mvm_is_vif_assoc(struct iwl_mvm *mvm);
1968
1969 void iwl_mvm_inactivity_check(struct iwl_mvm *mvm);
1970
1971 #define MVM_TCM_PERIOD_MSEC 500
1972 #define MVM_TCM_PERIOD (HZ * MVM_TCM_PERIOD_MSEC / 1000)
1973 #define MVM_LL_PERIOD (10 * HZ)
1974 void iwl_mvm_tcm_work(struct work_struct *work);
1975 void iwl_mvm_recalc_tcm(struct iwl_mvm *mvm);
1976 void iwl_mvm_pause_tcm(struct iwl_mvm *mvm, bool with_cancel);
1977 void iwl_mvm_resume_tcm(struct iwl_mvm *mvm);
1978 void iwl_mvm_tcm_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
1979 void iwl_mvm_tcm_rm_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
1980 u8 iwl_mvm_tcm_load_percentage(u32 airtime, u32 elapsed);
1981
1982 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error);
1983 unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm,
1984 struct ieee80211_vif *vif,
1985 bool tdls, bool cmd_q);
1986 void iwl_mvm_connection_loss(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1987 const char *errmsg);
1988 void iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
1989 struct ieee80211_vif *vif,
1990 const struct ieee80211_sta *sta,
1991 u16 tid);
1992
1993 int iwl_mvm_sar_select_profile(struct iwl_mvm *mvm, int prof_a, int prof_b);
1994 int iwl_mvm_get_sar_geo_profile(struct iwl_mvm *mvm);
1995 #ifdef CONFIG_IWLWIFI_DEBUGFS
1996 void iwl_mvm_sta_add_debugfs(struct ieee80211_hw *hw,
1997 struct ieee80211_vif *vif,
1998 struct ieee80211_sta *sta,
1999 struct dentry *dir);
2000 #endif
2001
2002 #endif /* __IWL_MVM_H__ */
2003
