1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2024-2025 Intel Corporation
4 */
5 #include <linux/rtnetlink.h>
6 #include <net/mac80211.h>
7
8 #include "fw/api/rx.h"
9 #include "fw/api/datapath.h"
10 #include "fw/api/commands.h"
11 #include "fw/api/offload.h"
12 #include "fw/api/coex.h"
13 #include "fw/dbg.h"
14 #include "fw/uefi.h"
15
16 #include "mld.h"
17 #include "mlo.h"
18 #include "mac80211.h"
19 #include "led.h"
20 #include "scan.h"
21 #include "tx.h"
22 #include "sta.h"
23 #include "regulatory.h"
24 #include "thermal.h"
25 #include "low_latency.h"
26 #include "hcmd.h"
27 #include "fw/api/location.h"
28
29 #define DRV_DESCRIPTION "Intel(R) MLD wireless driver for Linux"
30 MODULE_DESCRIPTION(DRV_DESCRIPTION);
31 MODULE_LICENSE("GPL");
32 MODULE_IMPORT_NS("IWLWIFI");
33
34 static const struct iwl_op_mode_ops iwl_mld_ops;
35
iwl_mld_init(void)36 static int __init iwl_mld_init(void)
37 {
38 int ret = iwl_opmode_register("iwlmld", &iwl_mld_ops);
39
40 if (ret)
41 pr_err("Unable to register MLD op_mode: %d\n", ret);
42
43 return ret;
44 }
45 module_init(iwl_mld_init);
46
iwl_mld_exit(void)47 static void __exit iwl_mld_exit(void)
48 {
49 iwl_opmode_deregister("iwlmld");
50 }
51 module_exit(iwl_mld_exit);
52
iwl_mld_hw_set_regulatory(struct iwl_mld * mld)53 static void iwl_mld_hw_set_regulatory(struct iwl_mld *mld)
54 {
55 struct wiphy *wiphy = mld->wiphy;
56
57 wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
58 wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
59 }
60
61 VISIBLE_IF_IWLWIFI_KUNIT
iwl_construct_mld(struct iwl_mld * mld,struct iwl_trans * trans,const struct iwl_cfg * cfg,const struct iwl_fw * fw,struct ieee80211_hw * hw,struct dentry * dbgfs_dir)62 void iwl_construct_mld(struct iwl_mld *mld, struct iwl_trans *trans,
63 const struct iwl_cfg *cfg, const struct iwl_fw *fw,
64 struct ieee80211_hw *hw, struct dentry *dbgfs_dir)
65 {
66 mld->dev = trans->dev;
67 mld->trans = trans;
68 mld->cfg = cfg;
69 mld->fw = fw;
70 mld->hw = hw;
71 mld->wiphy = hw->wiphy;
72 mld->debugfs_dir = dbgfs_dir;
73
74 iwl_notification_wait_init(&mld->notif_wait);
75
76 /* Setup async RX handling */
77 spin_lock_init(&mld->async_handlers_lock);
78 wiphy_work_init(&mld->async_handlers_wk,
79 iwl_mld_async_handlers_wk);
80
81 /* Dynamic Queue Allocation */
82 spin_lock_init(&mld->add_txqs_lock);
83 INIT_LIST_HEAD(&mld->txqs_to_add);
84 wiphy_work_init(&mld->add_txqs_wk, iwl_mld_add_txqs_wk);
85
86 /* Setup RX queues sync wait queue */
87 init_waitqueue_head(&mld->rxq_sync.waitq);
88 }
89 EXPORT_SYMBOL_IF_IWLWIFI_KUNIT(iwl_construct_mld);
90
91 static void __acquires(&mld->wiphy->mtx)
iwl_mld_fwrt_dump_start(void * ctx)92 iwl_mld_fwrt_dump_start(void *ctx)
93 {
94 struct iwl_mld *mld = ctx;
95
96 wiphy_lock(mld->wiphy);
97 }
98
99 static void __releases(&mld->wiphy->mtx)
iwl_mld_fwrt_dump_end(void * ctx)100 iwl_mld_fwrt_dump_end(void *ctx)
101 {
102 struct iwl_mld *mld = ctx;
103
104 wiphy_unlock(mld->wiphy);
105 }
106
iwl_mld_d3_debug_enable(void * ctx)107 static bool iwl_mld_d3_debug_enable(void *ctx)
108 {
109 return IWL_MLD_D3_DEBUG;
110 }
111
iwl_mld_fwrt_send_hcmd(void * ctx,struct iwl_host_cmd * host_cmd)112 static int iwl_mld_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd)
113 {
114 struct iwl_mld *mld = (struct iwl_mld *)ctx;
115 int ret;
116
117 wiphy_lock(mld->wiphy);
118 ret = iwl_mld_send_cmd(mld, host_cmd);
119 wiphy_unlock(mld->wiphy);
120
121 return ret;
122 }
123
124 static const struct iwl_fw_runtime_ops iwl_mld_fwrt_ops = {
125 .dump_start = iwl_mld_fwrt_dump_start,
126 .dump_end = iwl_mld_fwrt_dump_end,
127 .send_hcmd = iwl_mld_fwrt_send_hcmd,
128 .d3_debug_enable = iwl_mld_d3_debug_enable,
129 };
130
131 static void
iwl_mld_construct_fw_runtime(struct iwl_mld * mld,struct iwl_trans * trans,const struct iwl_fw * fw,struct dentry * debugfs_dir)132 iwl_mld_construct_fw_runtime(struct iwl_mld *mld, struct iwl_trans *trans,
133 const struct iwl_fw *fw,
134 struct dentry *debugfs_dir)
135 {
136 iwl_fw_runtime_init(&mld->fwrt, trans, fw, &iwl_mld_fwrt_ops, mld,
137 NULL, NULL, debugfs_dir);
138
139 iwl_fw_set_current_image(&mld->fwrt, IWL_UCODE_REGULAR);
140 }
141
142 /* Please keep this array *SORTED* by hex value.
143 * Access is done through binary search
144 */
145 static const struct iwl_hcmd_names iwl_mld_legacy_names[] = {
146 HCMD_NAME(UCODE_ALIVE_NTFY),
147 HCMD_NAME(INIT_COMPLETE_NOTIF),
148 HCMD_NAME(PHY_CONTEXT_CMD),
149 HCMD_NAME(SCAN_CFG_CMD),
150 HCMD_NAME(SCAN_REQ_UMAC),
151 HCMD_NAME(SCAN_ABORT_UMAC),
152 HCMD_NAME(SCAN_COMPLETE_UMAC),
153 HCMD_NAME(TX_CMD),
154 HCMD_NAME(TXPATH_FLUSH),
155 HCMD_NAME(LEDS_CMD),
156 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_NOTIFICATION),
157 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION),
158 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
159 HCMD_NAME(POWER_TABLE_CMD),
160 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
161 HCMD_NAME(BEACON_NOTIFICATION),
162 HCMD_NAME(BEACON_TEMPLATE_CMD),
163 HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
164 HCMD_NAME(REDUCE_TX_POWER_CMD),
165 HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
166 HCMD_NAME(MAC_PM_POWER_TABLE),
167 HCMD_NAME(MFUART_LOAD_NOTIFICATION),
168 HCMD_NAME(RSS_CONFIG_CMD),
169 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
170 HCMD_NAME(REPLY_RX_MPDU_CMD),
171 HCMD_NAME(BA_NOTIF),
172 HCMD_NAME(MCC_UPDATE_CMD),
173 HCMD_NAME(MCC_CHUB_UPDATE_CMD),
174 HCMD_NAME(MCAST_FILTER_CMD),
175 HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
176 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
177 HCMD_NAME(MATCH_FOUND_NOTIFICATION),
178 HCMD_NAME(WOWLAN_PATTERNS),
179 HCMD_NAME(WOWLAN_CONFIGURATION),
180 HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
181 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
182 HCMD_NAME(DEBUG_HOST_COMMAND),
183 HCMD_NAME(LDBG_CONFIG_CMD),
184 };
185
186 /* Please keep this array *SORTED* by hex value.
187 * Access is done through binary search
188 */
189 static const struct iwl_hcmd_names iwl_mld_system_names[] = {
190 HCMD_NAME(SHARED_MEM_CFG_CMD),
191 HCMD_NAME(SOC_CONFIGURATION_CMD),
192 HCMD_NAME(INIT_EXTENDED_CFG_CMD),
193 HCMD_NAME(FW_ERROR_RECOVERY_CMD),
194 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD),
195 HCMD_NAME(SYSTEM_STATISTICS_CMD),
196 HCMD_NAME(SYSTEM_STATISTICS_END_NOTIF),
197 };
198
199 /* Please keep this array *SORTED* by hex value.
200 * Access is done through binary search
201 */
202 static const struct iwl_hcmd_names iwl_mld_reg_and_nvm_names[] = {
203 HCMD_NAME(LARI_CONFIG_CHANGE),
204 HCMD_NAME(NVM_GET_INFO),
205 HCMD_NAME(TAS_CONFIG),
206 HCMD_NAME(SAR_OFFSET_MAPPING_TABLE_CMD),
207 HCMD_NAME(MCC_ALLOWED_AP_TYPE_CMD),
208 };
209
210 /* Please keep this array *SORTED* by hex value.
211 * Access is done through binary search
212 */
213 static const struct iwl_hcmd_names iwl_mld_debug_names[] = {
214 HCMD_NAME(HOST_EVENT_CFG),
215 HCMD_NAME(DBGC_SUSPEND_RESUME),
216 };
217
218 /* Please keep this array *SORTED* by hex value.
219 * Access is done through binary search
220 */
221 static const struct iwl_hcmd_names iwl_mld_mac_conf_names[] = {
222 HCMD_NAME(LOW_LATENCY_CMD),
223 HCMD_NAME(SESSION_PROTECTION_CMD),
224 HCMD_NAME(MAC_CONFIG_CMD),
225 HCMD_NAME(LINK_CONFIG_CMD),
226 HCMD_NAME(STA_CONFIG_CMD),
227 HCMD_NAME(AUX_STA_CMD),
228 HCMD_NAME(STA_REMOVE_CMD),
229 HCMD_NAME(ROC_CMD),
230 HCMD_NAME(MISSED_BEACONS_NOTIF),
231 HCMD_NAME(EMLSR_TRANS_FAIL_NOTIF),
232 HCMD_NAME(ROC_NOTIF),
233 HCMD_NAME(CHANNEL_SWITCH_ERROR_NOTIF),
234 HCMD_NAME(SESSION_PROTECTION_NOTIF),
235 HCMD_NAME(PROBE_RESPONSE_DATA_NOTIF),
236 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF),
237 };
238
239 /* Please keep this array *SORTED* by hex value.
240 * Access is done through binary search
241 */
242 static const struct iwl_hcmd_names iwl_mld_data_path_names[] = {
243 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
244 HCMD_NAME(WNM_PLATFORM_PTM_REQUEST_CMD),
245 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_CONFIG_CMD),
246 HCMD_NAME(RFH_QUEUE_CONFIG_CMD),
247 HCMD_NAME(TLC_MNG_CONFIG_CMD),
248 HCMD_NAME(RX_BAID_ALLOCATION_CONFIG_CMD),
249 HCMD_NAME(SCD_QUEUE_CONFIG_CMD),
250 HCMD_NAME(OMI_SEND_STATUS_NOTIF),
251 HCMD_NAME(ESR_MODE_NOTIF),
252 HCMD_NAME(MONITOR_NOTIF),
253 HCMD_NAME(TLC_MNG_UPDATE_NOTIF),
254 HCMD_NAME(MU_GROUP_MGMT_NOTIF),
255 };
256
257 /* Please keep this array *SORTED* by hex value.
258 * Access is done through binary search
259 */
260 static const struct iwl_hcmd_names iwl_mld_location_names[] = {
261 HCMD_NAME(TOF_RANGE_REQ_CMD),
262 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF),
263 };
264
265 /* Please keep this array *SORTED* by hex value.
266 * Access is done through binary search
267 */
268 static const struct iwl_hcmd_names iwl_mld_phy_names[] = {
269 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
270 HCMD_NAME(CTDP_CONFIG_CMD),
271 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
272 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD),
273 HCMD_NAME(CT_KILL_NOTIFICATION),
274 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
275 };
276
277 /* Please keep this array *SORTED* by hex value.
278 * Access is done through binary search
279 */
280 static const struct iwl_hcmd_names iwl_mld_statistics_names[] = {
281 HCMD_NAME(STATISTICS_OPER_NOTIF),
282 HCMD_NAME(STATISTICS_OPER_PART1_NOTIF),
283 };
284
285 /* Please keep this array *SORTED* by hex value.
286 * Access is done through binary search
287 */
288 static const struct iwl_hcmd_names iwl_mld_prot_offload_names[] = {
289 HCMD_NAME(STORED_BEACON_NTF),
290 };
291
292 /* Please keep this array *SORTED* by hex value.
293 * Access is done through binary search
294 */
295 static const struct iwl_hcmd_names iwl_mld_coex_names[] = {
296 HCMD_NAME(PROFILE_NOTIF),
297 };
298
299 VISIBLE_IF_IWLWIFI_KUNIT
300 const struct iwl_hcmd_arr iwl_mld_groups[] = {
301 [LEGACY_GROUP] = HCMD_ARR(iwl_mld_legacy_names),
302 [LONG_GROUP] = HCMD_ARR(iwl_mld_legacy_names),
303 [SYSTEM_GROUP] = HCMD_ARR(iwl_mld_system_names),
304 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mld_mac_conf_names),
305 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mld_data_path_names),
306 [LOCATION_GROUP] = HCMD_ARR(iwl_mld_location_names),
307 [REGULATORY_AND_NVM_GROUP] = HCMD_ARR(iwl_mld_reg_and_nvm_names),
308 [DEBUG_GROUP] = HCMD_ARR(iwl_mld_debug_names),
309 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mld_phy_names),
310 [STATISTICS_GROUP] = HCMD_ARR(iwl_mld_statistics_names),
311 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mld_prot_offload_names),
312 [BT_COEX_GROUP] = HCMD_ARR(iwl_mld_coex_names),
313 };
314 EXPORT_SYMBOL_IF_IWLWIFI_KUNIT(iwl_mld_groups);
315
316 #if IS_ENABLED(CONFIG_IWLWIFI_KUNIT_TESTS)
317 const unsigned int global_iwl_mld_goups_size = ARRAY_SIZE(iwl_mld_groups);
318 EXPORT_SYMBOL_IF_IWLWIFI_KUNIT(global_iwl_mld_goups_size);
319 #endif
320
321 static void
iwl_mld_configure_trans(struct iwl_op_mode * op_mode)322 iwl_mld_configure_trans(struct iwl_op_mode *op_mode)
323 {
324 const struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode);
325 static const u8 no_reclaim_cmds[] = {TX_CMD};
326 struct iwl_trans_config trans_cfg = {
327 .op_mode = op_mode,
328 /* Rx is not supported yet, but add it to avoid warnings */
329 .rx_buf_size = iwl_amsdu_size_to_rxb_size(),
330 .command_groups = iwl_mld_groups,
331 .command_groups_size = ARRAY_SIZE(iwl_mld_groups),
332 .fw_reset_handshake = true,
333 .queue_alloc_cmd_ver =
334 iwl_fw_lookup_cmd_ver(mld->fw,
335 WIDE_ID(DATA_PATH_GROUP,
336 SCD_QUEUE_CONFIG_CMD),
337 0),
338 .no_reclaim_cmds = no_reclaim_cmds,
339 .n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds),
340 .cb_data_offs = offsetof(struct ieee80211_tx_info,
341 driver_data[2]),
342 };
343 struct iwl_trans *trans = mld->trans;
344
345 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
346 trans->iml = mld->fw->iml;
347 trans->iml_len = mld->fw->iml_len;
348 trans->wide_cmd_header = true;
349
350 iwl_trans_configure(trans, &trans_cfg);
351 }
352
353 /*
354 *****************************************************
355 * op mode ops functions
356 *****************************************************
357 */
358
359 #define NUM_FW_LOAD_RETRIES 3
360 static struct iwl_op_mode *
iwl_op_mode_mld_start(struct iwl_trans * trans,const struct iwl_cfg * cfg,const struct iwl_fw * fw,struct dentry * dbgfs_dir)361 iwl_op_mode_mld_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
362 const struct iwl_fw *fw, struct dentry *dbgfs_dir)
363 {
364 struct ieee80211_hw *hw;
365 struct iwl_op_mode *op_mode;
366 struct iwl_mld *mld;
367 u32 eckv_value;
368 int ret;
369
370 /* Allocate and initialize a new hardware device */
371 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
372 sizeof(struct iwl_mld),
373 &iwl_mld_hw_ops);
374 if (!hw)
375 return ERR_PTR(-ENOMEM);
376
377 op_mode = hw->priv;
378
379 op_mode->ops = &iwl_mld_ops;
380
381 mld = IWL_OP_MODE_GET_MLD(op_mode);
382
383 iwl_construct_mld(mld, trans, cfg, fw, hw, dbgfs_dir);
384
385 iwl_mld_construct_fw_runtime(mld, trans, fw, dbgfs_dir);
386
387 iwl_mld_get_bios_tables(mld);
388 iwl_uefi_get_sgom_table(trans, &mld->fwrt);
389 iwl_uefi_get_step_table(trans);
390 if (iwl_bios_get_eckv(&mld->fwrt, &eckv_value))
391 IWL_DEBUG_RADIO(mld, "ECKV table doesn't exist in BIOS\n");
392 else
393 trans->ext_32khz_clock_valid = !!eckv_value;
394 iwl_bios_setup_step(trans, &mld->fwrt);
395 mld->bios_enable_puncturing = iwl_uefi_get_puncturing(&mld->fwrt);
396
397 iwl_mld_hw_set_regulatory(mld);
398
399 /* Configure transport layer with the opmode specific params */
400 iwl_mld_configure_trans(op_mode);
401
402 /* needed for regulatory init */
403 rtnl_lock();
404 /* Needed for sending commands */
405 wiphy_lock(mld->wiphy);
406
407 for (int i = 0; i < NUM_FW_LOAD_RETRIES; i++) {
408 ret = iwl_mld_load_fw(mld);
409 if (!ret)
410 break;
411 }
412
413 if (ret) {
414 wiphy_unlock(mld->wiphy);
415 rtnl_unlock();
416 iwl_fw_flush_dumps(&mld->fwrt);
417 goto free_hw;
418 }
419
420 iwl_mld_stop_fw(mld);
421
422 wiphy_unlock(mld->wiphy);
423 rtnl_unlock();
424
425 ret = iwl_mld_leds_init(mld);
426 if (ret)
427 goto free_nvm;
428
429 ret = iwl_mld_alloc_scan_cmd(mld);
430 if (ret)
431 goto leds_exit;
432
433 ret = iwl_mld_low_latency_init(mld);
434 if (ret)
435 goto free_scan_cmd;
436
437 ret = iwl_mld_register_hw(mld);
438 if (ret)
439 goto low_latency_free;
440
441 iwl_mld_toggle_tx_ant(mld, &mld->mgmt_tx_ant);
442
443 iwl_mld_add_debugfs_files(mld, dbgfs_dir);
444 iwl_mld_thermal_initialize(mld);
445
446 iwl_mld_ptp_init(mld);
447
448 return op_mode;
449
450 low_latency_free:
451 iwl_mld_low_latency_free(mld);
452 free_scan_cmd:
453 kfree(mld->scan.cmd);
454 leds_exit:
455 iwl_mld_leds_exit(mld);
456 free_nvm:
457 kfree(mld->nvm_data);
458 free_hw:
459 ieee80211_free_hw(mld->hw);
460 return ERR_PTR(ret);
461 }
462
463 static void
iwl_op_mode_mld_stop(struct iwl_op_mode * op_mode)464 iwl_op_mode_mld_stop(struct iwl_op_mode *op_mode)
465 {
466 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode);
467
468 iwl_mld_ptp_remove(mld);
469 iwl_mld_leds_exit(mld);
470
471 wiphy_lock(mld->wiphy);
472 iwl_mld_thermal_exit(mld);
473 iwl_mld_low_latency_stop(mld);
474 iwl_mld_deinit_time_sync(mld);
475 wiphy_unlock(mld->wiphy);
476
477 ieee80211_unregister_hw(mld->hw);
478
479 iwl_fw_runtime_free(&mld->fwrt);
480 iwl_mld_low_latency_free(mld);
481
482 iwl_trans_op_mode_leave(mld->trans);
483
484 kfree(mld->nvm_data);
485 kfree(mld->scan.cmd);
486 kfree(mld->error_recovery_buf);
487 kfree(mld->mcast_filter_cmd);
488
489 ieee80211_free_hw(mld->hw);
490 }
491
iwl_mld_queue_state_change(struct iwl_op_mode * op_mode,int hw_queue,bool queue_full)492 static void iwl_mld_queue_state_change(struct iwl_op_mode *op_mode,
493 int hw_queue, bool queue_full)
494 {
495 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode);
496 struct ieee80211_txq *txq;
497 struct iwl_mld_sta *mld_sta;
498 struct iwl_mld_txq *mld_txq;
499
500 rcu_read_lock();
501
502 txq = rcu_dereference(mld->fw_id_to_txq[hw_queue]);
503 if (!txq) {
504 rcu_read_unlock();
505
506 if (queue_full) {
507 /* An internal queue is not expected to become full */
508 IWL_WARN(mld,
509 "Internal hw_queue %d is full! stopping all queues\n",
510 hw_queue);
511 /* Stop all queues, as an internal queue is not
512 * mapped to a mac80211 one
513 */
514 ieee80211_stop_queues(mld->hw);
515 } else {
516 ieee80211_wake_queues(mld->hw);
517 }
518
519 return;
520 }
521
522 mld_txq = iwl_mld_txq_from_mac80211(txq);
523 mld_sta = txq->sta ? iwl_mld_sta_from_mac80211(txq->sta) : NULL;
524
525 mld_txq->status.stop_full = queue_full;
526
527 if (!queue_full && mld_sta &&
528 mld_sta->sta_state != IEEE80211_STA_NOTEXIST) {
529 local_bh_disable();
530 iwl_mld_tx_from_txq(mld, txq);
531 local_bh_enable();
532 }
533
534 rcu_read_unlock();
535 }
536
537 static void
iwl_mld_queue_full(struct iwl_op_mode * op_mode,int hw_queue)538 iwl_mld_queue_full(struct iwl_op_mode *op_mode, int hw_queue)
539 {
540 iwl_mld_queue_state_change(op_mode, hw_queue, true);
541 }
542
543 static void
iwl_mld_queue_not_full(struct iwl_op_mode * op_mode,int hw_queue)544 iwl_mld_queue_not_full(struct iwl_op_mode *op_mode, int hw_queue)
545 {
546 iwl_mld_queue_state_change(op_mode, hw_queue, false);
547 }
548
549 static bool
iwl_mld_set_hw_rfkill_state(struct iwl_op_mode * op_mode,bool state)550 iwl_mld_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
551 {
552 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode);
553
554 iwl_mld_set_hwkill(mld, state);
555
556 return false;
557 }
558
559 static void
iwl_mld_free_skb(struct iwl_op_mode * op_mode,struct sk_buff * skb)560 iwl_mld_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
561 {
562 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode);
563 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
564
565 iwl_trans_free_tx_cmd(mld->trans, info->driver_data[1]);
566 ieee80211_free_txskb(mld->hw, skb);
567 }
568
iwl_mld_read_error_recovery_buffer(struct iwl_mld * mld)569 static void iwl_mld_read_error_recovery_buffer(struct iwl_mld *mld)
570 {
571 u32 src_size = mld->fw->ucode_capa.error_log_size;
572 u32 src_addr = mld->fw->ucode_capa.error_log_addr;
573 u8 *recovery_buf;
574 int ret;
575
576 /* no recovery buffer size defined in a TLV */
577 if (!src_size)
578 return;
579
580 recovery_buf = kzalloc(src_size, GFP_ATOMIC);
581 if (!recovery_buf)
582 return;
583
584 ret = iwl_trans_read_mem_bytes(mld->trans, src_addr,
585 recovery_buf, src_size);
586 if (ret) {
587 IWL_ERR(mld, "Failed to read error recovery buffer (%d)\n",
588 ret);
589 kfree(recovery_buf);
590 return;
591 }
592
593 mld->error_recovery_buf = recovery_buf;
594 }
595
iwl_mld_restart_nic(struct iwl_mld * mld)596 static void iwl_mld_restart_nic(struct iwl_mld *mld)
597 {
598 iwl_mld_read_error_recovery_buffer(mld);
599
600 mld->fwrt.trans->dbg.restart_required = false;
601
602 ieee80211_restart_hw(mld->hw);
603 }
604
605 static void
iwl_mld_nic_error(struct iwl_op_mode * op_mode,enum iwl_fw_error_type type)606 iwl_mld_nic_error(struct iwl_op_mode *op_mode,
607 enum iwl_fw_error_type type)
608 {
609 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode);
610 bool trans_dead = test_bit(STATUS_TRANS_DEAD, &mld->trans->status);
611
612 if (type == IWL_ERR_TYPE_CMD_QUEUE_FULL)
613 IWL_ERR(mld, "Command queue full!\n");
614 else if (!trans_dead && !mld->fw_status.do_not_dump_once)
615 iwl_fwrt_dump_error_logs(&mld->fwrt);
616
617 mld->fw_status.do_not_dump_once = false;
618
619 /* It is necessary to abort any os scan here because mac80211 requires
620 * having the scan cleared before restarting.
621 * We'll reset the scan_status to NONE in restart cleanup in
622 * the next drv_start() call from mac80211. If ieee80211_hw_restart
623 * isn't called scan status will stay busy.
624 */
625 iwl_mld_report_scan_aborted(mld);
626
627 /*
628 * This should be first thing before trying to collect any
629 * data to avoid endless loops if any HW error happens while
630 * collecting debug data.
631 * It might not actually be true that we'll restart, but the
632 * setting doesn't matter if we're going to be unbound either.
633 */
634 if (type != IWL_ERR_TYPE_RESET_HS_TIMEOUT)
635 mld->fw_status.in_hw_restart = true;
636 }
637
iwl_mld_dump_error(struct iwl_op_mode * op_mode,struct iwl_fw_error_dump_mode * mode)638 static void iwl_mld_dump_error(struct iwl_op_mode *op_mode,
639 struct iwl_fw_error_dump_mode *mode)
640 {
641 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode);
642
643 /* if we come in from opmode we have the mutex held */
644 if (mode->context == IWL_ERR_CONTEXT_FROM_OPMODE) {
645 lockdep_assert_wiphy(mld->wiphy);
646 iwl_fw_error_collect(&mld->fwrt);
647 } else {
648 wiphy_lock(mld->wiphy);
649 if (mode->context != IWL_ERR_CONTEXT_ABORT)
650 iwl_fw_error_collect(&mld->fwrt);
651 wiphy_unlock(mld->wiphy);
652 }
653 }
654
iwl_mld_sw_reset(struct iwl_op_mode * op_mode,enum iwl_fw_error_type type)655 static bool iwl_mld_sw_reset(struct iwl_op_mode *op_mode,
656 enum iwl_fw_error_type type)
657 {
658 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode);
659
660 /* Do restart only in the following conditions are met:
661 * - we consider the FW as running
662 * - The trigger that brought us here is defined as one that requires
663 * a restart (in the debug TLVs)
664 */
665 if (!mld->fw_status.running || !mld->fwrt.trans->dbg.restart_required)
666 return false;
667
668 iwl_mld_restart_nic(mld);
669 return true;
670 }
671
672 static void
iwl_mld_time_point(struct iwl_op_mode * op_mode,enum iwl_fw_ini_time_point tp_id,union iwl_dbg_tlv_tp_data * tp_data)673 iwl_mld_time_point(struct iwl_op_mode *op_mode,
674 enum iwl_fw_ini_time_point tp_id,
675 union iwl_dbg_tlv_tp_data *tp_data)
676 {
677 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode);
678
679 iwl_dbg_tlv_time_point(&mld->fwrt, tp_id, tp_data);
680 }
681
682 #ifdef CONFIG_PM_SLEEP
iwl_mld_device_powered_off(struct iwl_op_mode * op_mode)683 static void iwl_mld_device_powered_off(struct iwl_op_mode *op_mode)
684 {
685 struct iwl_mld *mld = IWL_OP_MODE_GET_MLD(op_mode);
686
687 wiphy_lock(mld->wiphy);
688 mld->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
689 iwl_mld_stop_fw(mld);
690 mld->fw_status.in_d3 = false;
691 wiphy_unlock(mld->wiphy);
692 }
693 #else
iwl_mld_device_powered_off(struct iwl_op_mode * op_mode)694 static void iwl_mld_device_powered_off(struct iwl_op_mode *op_mode)
695 {}
696 #endif
697
698 static const struct iwl_op_mode_ops iwl_mld_ops = {
699 .start = iwl_op_mode_mld_start,
700 .stop = iwl_op_mode_mld_stop,
701 .rx = iwl_mld_rx,
702 .rx_rss = iwl_mld_rx_rss,
703 .queue_full = iwl_mld_queue_full,
704 .queue_not_full = iwl_mld_queue_not_full,
705 .hw_rf_kill = iwl_mld_set_hw_rfkill_state,
706 .free_skb = iwl_mld_free_skb,
707 .nic_error = iwl_mld_nic_error,
708 .dump_error = iwl_mld_dump_error,
709 .sw_reset = iwl_mld_sw_reset,
710 .time_point = iwl_mld_time_point,
711 .device_powered_off = pm_sleep_ptr(iwl_mld_device_powered_off),
712 };
713
714 struct iwl_mld_mod_params iwlmld_mod_params = {
715 .power_scheme = IWL_POWER_SCHEME_BPS,
716 };
717
718 module_param_named(power_scheme, iwlmld_mod_params.power_scheme, int, 0444);
719 MODULE_PARM_DESC(power_scheme,
720 "power management scheme: 1-active, 2-balanced, default: 2");
721