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1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2/*
3 * Copyright (C) 2012-2014, 2018-2023 Intel Corporation
4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 * Copyright (C) 2016-2017 Intel Deutschland GmbH
6 */
7#include <linux/module.h>
8#include <linux/rtnetlink.h>
9#include <linux/vmalloc.h>
10#include <net/mac80211.h>
11
12#include "fw/notif-wait.h"
13#include "iwl-trans.h"
14#include "iwl-op-mode.h"
15#include "fw/img.h"
16#include "iwl-debug.h"
17#include "iwl-drv.h"
18#include "iwl-modparams.h"
19#include "mvm.h"
20#include "iwl-phy-db.h"
21#include "iwl-eeprom-parse.h"
22#include "iwl-csr.h"
23#include "iwl-io.h"
24#include "iwl-prph.h"
25#include "rs.h"
26#include "fw/api/scan.h"
27#include "fw/api/rfi.h"
28#include "time-event.h"
29#include "fw-api.h"
30#include "fw/acpi.h"
31#include "fw/uefi.h"
32#include "time-sync.h"
33
34#define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
35MODULE_DESCRIPTION(DRV_DESCRIPTION);
36MODULE_LICENSE("GPL");
37MODULE_IMPORT_NS(IWLWIFI);
38
39static const struct iwl_op_mode_ops iwl_mvm_ops;
40static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
41
42struct iwl_mvm_mod_params iwlmvm_mod_params = {
43 .power_scheme = IWL_POWER_SCHEME_BPS,
44 /* rest of fields are 0 by default */
45};
46
47module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444);
48MODULE_PARM_DESC(init_dbg,
49 "set to true to debug an ASSERT in INIT fw (default: false");
50module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444);
51MODULE_PARM_DESC(power_scheme,
52 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
53
54/*
55 * module init and exit functions
56 */
57static int __init iwl_mvm_init(void)
58{
59 int ret;
60
61 ret = iwl_mvm_rate_control_register();
62 if (ret) {
63 pr_err("Unable to register rate control algorithm: %d\n", ret);
64 return ret;
65 }
66
67 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
68 if (ret)
69 pr_err("Unable to register MVM op_mode: %d\n", ret);
70
71 return ret;
72}
73module_init(iwl_mvm_init);
74
75static void __exit iwl_mvm_exit(void)
76{
77 iwl_opmode_deregister("iwlmvm");
78 iwl_mvm_rate_control_unregister();
79}
80module_exit(iwl_mvm_exit);
81
82static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
83{
84 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
85 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
86 u32 reg_val;
87 u32 phy_config = iwl_mvm_get_phy_config(mvm);
88
89 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
90 FW_PHY_CFG_RADIO_TYPE_POS;
91 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
92 FW_PHY_CFG_RADIO_STEP_POS;
93 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
94 FW_PHY_CFG_RADIO_DASH_POS;
95
96 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
97 radio_cfg_step, radio_cfg_dash);
98
99 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
100 return;
101
102 /* SKU control */
103 reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev);
104
105 /* radio configuration */
106 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
107 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
108 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
109
110 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
111 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
112
113 /*
114 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC
115 * sampling, and shouldn't be set to any non-zero value.
116 * The same is supposed to be true of the other HW, but unsetting
117 * them (such as the 7260) causes automatic tests to fail on seemingly
118 * unrelated errors. Need to further investigate this, but for now
119 * we'll separate cases.
120 */
121 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000)
122 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
123
124 if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt))
125 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG;
126
127 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
128 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH |
129 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
130 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
131 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
132 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
133 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI |
134 CSR_HW_IF_CONFIG_REG_D3_DEBUG,
135 reg_val);
136
137 /*
138 * W/A : NIC is stuck in a reset state after Early PCIe power off
139 * (PCIe power is lost before PERST# is asserted), causing ME FW
140 * to lose ownership and not being able to obtain it back.
141 */
142 if (!mvm->trans->cfg->apmg_not_supported)
143 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
144 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
145 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
146}
147
148static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm,
149 struct iwl_rx_cmd_buffer *rxb)
150{
151 struct iwl_rx_packet *pkt = rxb_addr(rxb);
152 struct iwl_datapath_monitor_notif *notif = (void *)pkt->data;
153 struct ieee80211_supported_band *sband;
154 const struct ieee80211_sta_he_cap *he_cap;
155 struct ieee80211_vif *vif;
156
157 if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA))
158 return;
159
160 vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id);
161 if (!vif || vif->type != NL80211_IFTYPE_STATION)
162 return;
163
164 if (!vif->bss_conf.chandef.chan ||
165 vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ ||
166 vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40)
167 return;
168
169 if (!vif->cfg.assoc)
170 return;
171
172 /* this shouldn't happen *again*, ignore it */
173 if (mvm->cca_40mhz_workaround)
174 return;
175
176 /*
177 * We'll decrement this on disconnect - so set to 2 since we'll
178 * still have to disconnect from the current AP first.
179 */
180 mvm->cca_40mhz_workaround = 2;
181
182 /*
183 * This capability manipulation isn't really ideal, but it's the
184 * easiest choice - otherwise we'd have to do some major changes
185 * in mac80211 to support this, which isn't worth it. This does
186 * mean that userspace may have outdated information, but that's
187 * actually not an issue at all.
188 */
189 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
190
191 WARN_ON(!sband->ht_cap.ht_supported);
192 WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40));
193 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
194
195 he_cap = ieee80211_get_he_iftype_cap_vif(sband, vif);
196
197 if (he_cap) {
198 /* we know that ours is writable */
199 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap;
200
201 WARN_ON(!he->has_he);
202 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] &
203 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G));
204 he->he_cap_elem.phy_cap_info[0] &=
205 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
206 }
207
208 ieee80211_disconnect(vif, true);
209}
210
211void iwl_mvm_update_link_smps(struct ieee80211_vif *vif,
212 struct ieee80211_bss_conf *link_conf)
213{
214 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
215 struct iwl_mvm *mvm = mvmvif->mvm;
216 enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC;
217
218 if (!link_conf)
219 return;
220
221 if (mvm->fw_static_smps_request &&
222 link_conf->chandef.width == NL80211_CHAN_WIDTH_160 &&
223 link_conf->he_support)
224 mode = IEEE80211_SMPS_STATIC;
225
226 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode,
227 link_conf->link_id);
228}
229
230static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac,
231 struct ieee80211_vif *vif)
232{
233 struct ieee80211_bss_conf *link_conf;
234 unsigned int link_id;
235
236 rcu_read_lock();
237
238 for_each_vif_active_link(vif, link_conf, link_id)
239 iwl_mvm_update_link_smps(vif, link_conf);
240
241 rcu_read_unlock();
242}
243
244static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm,
245 struct iwl_rx_cmd_buffer *rxb)
246{
247 struct iwl_rx_packet *pkt = rxb_addr(rxb);
248 struct iwl_thermal_dual_chain_request *req = (void *)pkt->data;
249
250 /*
251 * We could pass it to the iterator data, but also need to remember
252 * it for new interfaces that are added while in this state.
253 */
254 mvm->fw_static_smps_request =
255 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE);
256 ieee80211_iterate_interfaces(mvm->hw,
257 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER,
258 iwl_mvm_intf_dual_chain_req, NULL);
259}
260
261/**
262 * enum iwl_rx_handler_context context for Rx handler
263 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path
264 * which can't acquire mvm->mutex.
265 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex
266 * (and only in this case!), it should be set as ASYNC. In that case,
267 * it will be called from a worker with mvm->mutex held.
268 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the
269 * mutex itself, it will be called from a worker without mvm->mutex held.
270 */
271enum iwl_rx_handler_context {
272 RX_HANDLER_SYNC,
273 RX_HANDLER_ASYNC_LOCKED,
274 RX_HANDLER_ASYNC_UNLOCKED,
275};
276
277/**
278 * struct iwl_rx_handlers handler for FW notification
279 * @cmd_id: command id
280 * @min_size: minimum size to expect for the notification
281 * @context: see &iwl_rx_handler_context
282 * @fn: the function is called when notification is received
283 */
284struct iwl_rx_handlers {
285 u16 cmd_id, min_size;
286 enum iwl_rx_handler_context context;
287 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
288};
289
290#define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context) \
291 { .cmd_id = _cmd_id, .fn = _fn, .context = _context, }
292#define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context) \
293 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, }
294#define RX_HANDLER(_cmd_id, _fn, _context, _struct) \
295 { .cmd_id = _cmd_id, .fn = _fn, \
296 .context = _context, .min_size = sizeof(_struct), }
297#define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct) \
298 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, \
299 .context = _context, .min_size = sizeof(_struct), }
300
301/*
302 * Handlers for fw notifications
303 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
304 * This list should be in order of frequency for performance purposes.
305 *
306 * The handler can be one from three contexts, see &iwl_rx_handler_context
307 */
308static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
309 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC,
310 struct iwl_mvm_tx_resp),
311 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC,
312 struct iwl_mvm_ba_notif),
313
314 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF,
315 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC,
316 struct iwl_tlc_update_notif),
317
318 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif,
319 RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif),
320 RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif,
321 RX_HANDLER_ASYNC_LOCKED),
322 RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics,
323 RX_HANDLER_ASYNC_LOCKED),
324
325 RX_HANDLER_GRP(STATISTICS_GROUP, STATISTICS_OPER_NOTIF,
326 iwl_mvm_handle_rx_system_oper_stats,
327 RX_HANDLER_ASYNC_LOCKED,
328 struct iwl_system_statistics_notif_oper),
329 RX_HANDLER_GRP(STATISTICS_GROUP, STATISTICS_OPER_PART1_NOTIF,
330 iwl_mvm_handle_rx_system_oper_part1_stats,
331 RX_HANDLER_ASYNC_LOCKED,
332 struct iwl_system_statistics_part1_notif_oper),
333 RX_HANDLER_GRP(SYSTEM_GROUP, SYSTEM_STATISTICS_END_NOTIF,
334 iwl_mvm_handle_rx_system_end_stats_notif,
335 RX_HANDLER_ASYNC_LOCKED,
336 struct iwl_system_statistics_end_notif),
337
338 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID,
339 iwl_mvm_window_status_notif, RX_HANDLER_SYNC,
340 struct iwl_ba_window_status_notif),
341
342 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif,
343 RX_HANDLER_SYNC, struct iwl_time_event_notif),
344 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF,
345 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC,
346 struct iwl_mvm_session_prot_notif),
347 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc,
348 RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif),
349
350 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC,
351 struct iwl_mvm_eosp_notification),
352
353 RX_HANDLER(SCAN_ITERATION_COMPLETE,
354 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC,
355 struct iwl_lmac_scan_complete_notif),
356 RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
357 iwl_mvm_rx_lmac_scan_complete_notif,
358 RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete),
359 RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION,
360 iwl_mvm_rx_scan_match_found,
361 RX_HANDLER_SYNC),
362 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
363 RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete),
364 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
365 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC,
366 struct iwl_umac_scan_iter_complete_notif),
367
368 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
369 RX_HANDLER_SYNC, struct iwl_missed_beacons_notif),
370
371 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC,
372 struct iwl_error_resp),
373 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
374 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC,
375 struct iwl_uapsd_misbehaving_ap_notif),
376 RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif,
377 RX_HANDLER_ASYNC_LOCKED),
378 RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
379 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED),
380 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION,
381 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC,
382 struct ct_kill_notif),
383
384 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
385 RX_HANDLER_ASYNC_LOCKED,
386 struct iwl_tdls_channel_switch_notif),
387 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif,
388 RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1),
389 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS,
390 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED,
391 struct iwl_ftm_responder_stats),
392
393 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF,
394 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED),
395 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF,
396 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED),
397
398 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF,
399 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC,
400 struct iwl_mfu_assert_dump_notif),
401 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF,
402 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC,
403 struct iwl_stored_beacon_notif_v2),
404 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF,
405 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC,
406 struct iwl_mu_group_mgmt_notif),
407 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF,
408 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC,
409 struct iwl_mvm_pm_state_notification),
410 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF,
411 iwl_mvm_probe_resp_data_notif,
412 RX_HANDLER_ASYNC_LOCKED,
413 struct iwl_probe_resp_data_notif),
414 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF,
415 iwl_mvm_channel_switch_start_notif,
416 RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif),
417 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF,
418 iwl_mvm_channel_switch_error_notif,
419 RX_HANDLER_ASYNC_UNLOCKED,
420 struct iwl_channel_switch_error_notif),
421 RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF,
422 iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED,
423 struct iwl_datapath_monitor_notif),
424
425 RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST,
426 iwl_mvm_rx_thermal_dual_chain_req,
427 RX_HANDLER_ASYNC_LOCKED,
428 struct iwl_thermal_dual_chain_request),
429
430 RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF,
431 iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED,
432 struct iwl_rfi_deactivate_notif),
433
434 RX_HANDLER_GRP(LEGACY_GROUP,
435 WNM_80211V_TIMING_MEASUREMENT_NOTIFICATION,
436 iwl_mvm_time_sync_msmt_event, RX_HANDLER_SYNC,
437 struct iwl_time_msmt_notify),
438 RX_HANDLER_GRP(LEGACY_GROUP,
439 WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION,
440 iwl_mvm_time_sync_msmt_confirm_event, RX_HANDLER_SYNC,
441 struct iwl_time_msmt_cfm_notify),
442 RX_HANDLER_GRP(MAC_CONF_GROUP, ROC_NOTIF,
443 iwl_mvm_rx_roc_notif, RX_HANDLER_SYNC,
444 struct iwl_roc_notif),
445};
446#undef RX_HANDLER
447#undef RX_HANDLER_GRP
448
449/* Please keep this array *SORTED* by hex value.
450 * Access is done through binary search
451 */
452static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
453 HCMD_NAME(UCODE_ALIVE_NTFY),
454 HCMD_NAME(REPLY_ERROR),
455 HCMD_NAME(ECHO_CMD),
456 HCMD_NAME(INIT_COMPLETE_NOTIF),
457 HCMD_NAME(PHY_CONTEXT_CMD),
458 HCMD_NAME(DBG_CFG),
459 HCMD_NAME(SCAN_CFG_CMD),
460 HCMD_NAME(SCAN_REQ_UMAC),
461 HCMD_NAME(SCAN_ABORT_UMAC),
462 HCMD_NAME(SCAN_COMPLETE_UMAC),
463 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID),
464 HCMD_NAME(ADD_STA_KEY),
465 HCMD_NAME(ADD_STA),
466 HCMD_NAME(REMOVE_STA),
467 HCMD_NAME(TX_CMD),
468 HCMD_NAME(SCD_QUEUE_CFG),
469 HCMD_NAME(TXPATH_FLUSH),
470 HCMD_NAME(MGMT_MCAST_KEY),
471 HCMD_NAME(WEP_KEY),
472 HCMD_NAME(SHARED_MEM_CFG),
473 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
474 HCMD_NAME(MAC_CONTEXT_CMD),
475 HCMD_NAME(TIME_EVENT_CMD),
476 HCMD_NAME(TIME_EVENT_NOTIFICATION),
477 HCMD_NAME(BINDING_CONTEXT_CMD),
478 HCMD_NAME(TIME_QUOTA_CMD),
479 HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
480 HCMD_NAME(LEDS_CMD),
481 HCMD_NAME(LQ_CMD),
482 HCMD_NAME(FW_PAGING_BLOCK_CMD),
483 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
484 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
485 HCMD_NAME(HOT_SPOT_CMD),
486 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
487 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
488 HCMD_NAME(BT_COEX_CI),
489 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_NOTIFICATION),
490 HCMD_NAME(WNM_80211V_TIMING_MEASUREMENT_CONFIRM_NOTIFICATION),
491 HCMD_NAME(PHY_CONFIGURATION_CMD),
492 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
493 HCMD_NAME(PHY_DB_CMD),
494 HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
495 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
496 HCMD_NAME(POWER_TABLE_CMD),
497 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
498 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
499 HCMD_NAME(NVM_ACCESS_CMD),
500 HCMD_NAME(BEACON_NOTIFICATION),
501 HCMD_NAME(BEACON_TEMPLATE_CMD),
502 HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
503 HCMD_NAME(BT_CONFIG),
504 HCMD_NAME(STATISTICS_CMD),
505 HCMD_NAME(STATISTICS_NOTIFICATION),
506 HCMD_NAME(EOSP_NOTIFICATION),
507 HCMD_NAME(REDUCE_TX_POWER_CMD),
508 HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
509 HCMD_NAME(TDLS_CONFIG_CMD),
510 HCMD_NAME(MAC_PM_POWER_TABLE),
511 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
512 HCMD_NAME(MFUART_LOAD_NOTIFICATION),
513 HCMD_NAME(RSS_CONFIG_CMD),
514 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
515 HCMD_NAME(REPLY_RX_PHY_CMD),
516 HCMD_NAME(REPLY_RX_MPDU_CMD),
517 HCMD_NAME(BAR_FRAME_RELEASE),
518 HCMD_NAME(FRAME_RELEASE),
519 HCMD_NAME(BA_NOTIF),
520 HCMD_NAME(MCC_UPDATE_CMD),
521 HCMD_NAME(MCC_CHUB_UPDATE_CMD),
522 HCMD_NAME(MARKER_CMD),
523 HCMD_NAME(BT_PROFILE_NOTIFICATION),
524 HCMD_NAME(MCAST_FILTER_CMD),
525 HCMD_NAME(REPLY_SF_CFG_CMD),
526 HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
527 HCMD_NAME(D3_CONFIG_CMD),
528 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
529 HCMD_NAME(MATCH_FOUND_NOTIFICATION),
530 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
531 HCMD_NAME(WOWLAN_PATTERNS),
532 HCMD_NAME(WOWLAN_CONFIGURATION),
533 HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
534 HCMD_NAME(WOWLAN_TKIP_PARAM),
535 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
536 HCMD_NAME(WOWLAN_GET_STATUSES),
537 HCMD_NAME(SCAN_ITERATION_COMPLETE),
538 HCMD_NAME(D0I3_END_CMD),
539 HCMD_NAME(LTR_CONFIG),
540 HCMD_NAME(LDBG_CONFIG_CMD),
541};
542
543/* Please keep this array *SORTED* by hex value.
544 * Access is done through binary search
545 */
546static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
547 HCMD_NAME(SHARED_MEM_CFG_CMD),
548 HCMD_NAME(INIT_EXTENDED_CFG_CMD),
549 HCMD_NAME(FW_ERROR_RECOVERY_CMD),
550 HCMD_NAME(RFI_CONFIG_CMD),
551 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD),
552 HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD),
553 HCMD_NAME(SYSTEM_STATISTICS_CMD),
554 HCMD_NAME(SYSTEM_STATISTICS_END_NOTIF),
555 HCMD_NAME(RFI_DEACTIVATE_NOTIF),
556};
557
558/* Please keep this array *SORTED* by hex value.
559 * Access is done through binary search
560 */
561static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
562 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD),
563 HCMD_NAME(SESSION_PROTECTION_CMD),
564 HCMD_NAME(MAC_CONFIG_CMD),
565 HCMD_NAME(LINK_CONFIG_CMD),
566 HCMD_NAME(STA_CONFIG_CMD),
567 HCMD_NAME(AUX_STA_CMD),
568 HCMD_NAME(STA_REMOVE_CMD),
569 HCMD_NAME(STA_DISABLE_TX_CMD),
570 HCMD_NAME(ROC_CMD),
571 HCMD_NAME(ROC_NOTIF),
572 HCMD_NAME(SESSION_PROTECTION_NOTIF),
573 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF),
574};
575
576/* Please keep this array *SORTED* by hex value.
577 * Access is done through binary search
578 */
579static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
580 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
581 HCMD_NAME(CTDP_CONFIG_CMD),
582 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
583 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD),
584 HCMD_NAME(CT_KILL_NOTIFICATION),
585 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
586};
587
588/* Please keep this array *SORTED* by hex value.
589 * Access is done through binary search
590 */
591static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
592 HCMD_NAME(DQA_ENABLE_CMD),
593 HCMD_NAME(UPDATE_MU_GROUPS_CMD),
594 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
595 HCMD_NAME(STA_HE_CTXT_CMD),
596 HCMD_NAME(RLC_CONFIG_CMD),
597 HCMD_NAME(RFH_QUEUE_CONFIG_CMD),
598 HCMD_NAME(TLC_MNG_CONFIG_CMD),
599 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD),
600 HCMD_NAME(SCD_QUEUE_CONFIG_CMD),
601 HCMD_NAME(SEC_KEY_CMD),
602 HCMD_NAME(MONITOR_NOTIF),
603 HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST),
604 HCMD_NAME(STA_PM_NOTIF),
605 HCMD_NAME(MU_GROUP_MGMT_NOTIF),
606 HCMD_NAME(RX_QUEUES_NOTIFICATION),
607};
608
609/* Please keep this array *SORTED* by hex value.
610 * Access is done through binary search
611 */
612static const struct iwl_hcmd_names iwl_mvm_statistics_names[] = {
613 HCMD_NAME(STATISTICS_OPER_NOTIF),
614 HCMD_NAME(STATISTICS_OPER_PART1_NOTIF),
615};
616
617/* Please keep this array *SORTED* by hex value.
618 * Access is done through binary search
619 */
620static const struct iwl_hcmd_names iwl_mvm_scan_names[] = {
621 HCMD_NAME(OFFLOAD_MATCH_INFO_NOTIF),
622};
623
624/* Please keep this array *SORTED* by hex value.
625 * Access is done through binary search
626 */
627static const struct iwl_hcmd_names iwl_mvm_location_names[] = {
628 HCMD_NAME(TOF_RANGE_REQ_CMD),
629 HCMD_NAME(TOF_CONFIG_CMD),
630 HCMD_NAME(TOF_RANGE_ABORT_CMD),
631 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD),
632 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD),
633 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD),
634 HCMD_NAME(TOF_LC_NOTIF),
635 HCMD_NAME(TOF_RESPONDER_STATS),
636 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF),
637 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF),
638};
639
640/* Please keep this array *SORTED* by hex value.
641 * Access is done through binary search
642 */
643static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
644 HCMD_NAME(WOWLAN_WAKE_PKT_NOTIFICATION),
645 HCMD_NAME(WOWLAN_INFO_NOTIFICATION),
646 HCMD_NAME(D3_END_NOTIFICATION),
647 HCMD_NAME(STORED_BEACON_NTF),
648};
649
650/* Please keep this array *SORTED* by hex value.
651 * Access is done through binary search
652 */
653static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = {
654 HCMD_NAME(NVM_ACCESS_COMPLETE),
655 HCMD_NAME(NVM_GET_INFO),
656 HCMD_NAME(TAS_CONFIG),
657};
658
659static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
660 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
661 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
662 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
663 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
664 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
665 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
666 [SCAN_GROUP] = HCMD_ARR(iwl_mvm_scan_names),
667 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names),
668 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
669 [REGULATORY_AND_NVM_GROUP] =
670 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names),
671 [STATISTICS_GROUP] = HCMD_ARR(iwl_mvm_statistics_names),
672};
673
674/* this forward declaration can avoid to export the function */
675static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
676
677static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm)
678{
679 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs;
680 u64 dflt_pwr_limit;
681
682 if (!backoff)
683 return 0;
684
685 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev);
686
687 while (backoff->pwr) {
688 if (dflt_pwr_limit >= backoff->pwr)
689 return backoff->backoff;
690
691 backoff++;
692 }
693
694 return 0;
695}
696
697static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
698{
699 struct iwl_mvm *mvm =
700 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work);
701 struct ieee80211_vif *tx_blocked_vif;
702 struct iwl_mvm_vif *mvmvif;
703
704 mutex_lock(&mvm->mutex);
705
706 tx_blocked_vif =
707 rcu_dereference_protected(mvm->csa_tx_blocked_vif,
708 lockdep_is_held(&mvm->mutex));
709
710 if (!tx_blocked_vif)
711 goto unlock;
712
713 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
714 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
715 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
716unlock:
717 mutex_unlock(&mvm->mutex);
718}
719
720static void iwl_mvm_fwrt_dump_start(void *ctx)
721{
722 struct iwl_mvm *mvm = ctx;
723
724 mutex_lock(&mvm->mutex);
725}
726
727static void iwl_mvm_fwrt_dump_end(void *ctx)
728{
729 struct iwl_mvm *mvm = ctx;
730
731 mutex_unlock(&mvm->mutex);
732}
733
734static bool iwl_mvm_fwrt_fw_running(void *ctx)
735{
736 return iwl_mvm_firmware_running(ctx);
737}
738
739static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd)
740{
741 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx;
742 int ret;
743
744 mutex_lock(&mvm->mutex);
745 ret = iwl_mvm_send_cmd(mvm, host_cmd);
746 mutex_unlock(&mvm->mutex);
747
748 return ret;
749}
750
751static bool iwl_mvm_d3_debug_enable(void *ctx)
752{
753 return IWL_MVM_D3_DEBUG;
754}
755
756static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = {
757 .dump_start = iwl_mvm_fwrt_dump_start,
758 .dump_end = iwl_mvm_fwrt_dump_end,
759 .fw_running = iwl_mvm_fwrt_fw_running,
760 .send_hcmd = iwl_mvm_fwrt_send_hcmd,
761 .d3_debug_enable = iwl_mvm_d3_debug_enable,
762};
763
764static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm)
765{
766 struct iwl_trans *trans = mvm->trans;
767 int ret;
768
769 if (trans->csme_own) {
770 if (WARN(!mvm->mei_registered,
771 "csme is owner, but we aren't registered to iwlmei\n"))
772 goto get_nvm_from_fw;
773
774 mvm->mei_nvm_data = iwl_mei_get_nvm();
775 if (mvm->mei_nvm_data) {
776 /*
777 * mvm->mei_nvm_data is set and because of that,
778 * we'll load the NVM from the FW when we'll get
779 * ownership.
780 */
781 mvm->nvm_data =
782 iwl_parse_mei_nvm_data(trans, trans->cfg,
783 mvm->mei_nvm_data,
784 mvm->fw,
785 mvm->set_tx_ant,
786 mvm->set_rx_ant);
787 return 0;
788 }
789
790 IWL_ERR(mvm,
791 "Got a NULL NVM from CSME, trying to get it from the device\n");
792 }
793
794get_nvm_from_fw:
795 rtnl_lock();
796 wiphy_lock(mvm->hw->wiphy);
797 mutex_lock(&mvm->mutex);
798
799 ret = iwl_trans_start_hw(mvm->trans);
800 if (ret) {
801 mutex_unlock(&mvm->mutex);
802 wiphy_unlock(mvm->hw->wiphy);
803 rtnl_unlock();
804 return ret;
805 }
806
807 ret = iwl_run_init_mvm_ucode(mvm);
808 if (ret && ret != -ERFKILL)
809 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER);
810 if (!ret && iwl_mvm_is_lar_supported(mvm)) {
811 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
812 ret = iwl_mvm_init_mcc(mvm);
813 }
814
815 if (!iwlmvm_mod_params.init_dbg || !ret)
816 iwl_mvm_stop_device(mvm);
817
818 mutex_unlock(&mvm->mutex);
819 wiphy_unlock(mvm->hw->wiphy);
820 rtnl_unlock();
821
822 if (ret)
823 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
824
825 /* no longer need this regardless of failure or not */
826 mvm->pldr_sync = false;
827
828 return ret;
829}
830
831static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm)
832{
833 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
834 int ret;
835
836 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
837
838 ret = iwl_mvm_mac_setup_register(mvm);
839 if (ret)
840 return ret;
841
842 mvm->hw_registered = true;
843
844 iwl_mvm_dbgfs_register(mvm);
845
846 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
847 mvm->mei_rfkill_blocked,
848 RFKILL_HARD_BLOCK_NOT_OWNER);
849
850 iwl_mvm_mei_set_sw_rfkill_state(mvm);
851
852 return 0;
853}
854
855struct iwl_mvm_frob_txf_data {
856 u8 *buf;
857 size_t buflen;
858};
859
860static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw,
861 struct ieee80211_vif *vif,
862 struct ieee80211_sta *sta,
863 struct ieee80211_key_conf *key,
864 void *data)
865{
866 struct iwl_mvm_frob_txf_data *txf = data;
867 u8 keylen, match, matchend;
868 u8 *keydata;
869 size_t i;
870
871 switch (key->cipher) {
872 case WLAN_CIPHER_SUITE_CCMP:
873 keydata = key->key;
874 keylen = key->keylen;
875 break;
876 case WLAN_CIPHER_SUITE_WEP40:
877 case WLAN_CIPHER_SUITE_WEP104:
878 case WLAN_CIPHER_SUITE_TKIP:
879 /*
880 * WEP has short keys which might show up in the payload,
881 * and then you can deduce the key, so in this case just
882 * remove all FIFO data.
883 * For TKIP, we don't know the phase 2 keys here, so same.
884 */
885 memset(txf->buf, 0xBB, txf->buflen);
886 return;
887 default:
888 return;
889 }
890
891 /* scan for key material and clear it out */
892 match = 0;
893 for (i = 0; i < txf->buflen; i++) {
894 if (txf->buf[i] != keydata[match]) {
895 match = 0;
896 continue;
897 }
898 match++;
899 if (match == keylen) {
900 memset(txf->buf + i - keylen, 0xAA, keylen);
901 match = 0;
902 }
903 }
904
905 /* we're dealing with a FIFO, so check wrapped around data */
906 matchend = match;
907 for (i = 0; match && i < keylen - match; i++) {
908 if (txf->buf[i] != keydata[match])
909 break;
910 match++;
911 if (match == keylen) {
912 memset(txf->buf, 0xAA, i + 1);
913 memset(txf->buf + txf->buflen - matchend, 0xAA,
914 matchend);
915 break;
916 }
917 }
918}
919
920static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen)
921{
922 struct iwl_mvm_frob_txf_data txf = {
923 .buf = buf,
924 .buflen = buflen,
925 };
926 struct iwl_mvm *mvm = ctx;
927
928 /* embedded key material exists only on old API */
929 if (iwl_mvm_has_new_tx_api(mvm))
930 return;
931
932 rcu_read_lock();
933 ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf);
934 rcu_read_unlock();
935}
936
937static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len)
938{
939 /* we only use wide headers for commands */
940 struct iwl_cmd_header_wide *hdr = hcmd;
941 unsigned int frob_start = sizeof(*hdr), frob_end = 0;
942
943 if (len < sizeof(hdr))
944 return;
945
946 /* all the commands we care about are in LONG_GROUP */
947 if (hdr->group_id != LONG_GROUP)
948 return;
949
950 switch (hdr->cmd) {
951 case WEP_KEY:
952 case WOWLAN_TKIP_PARAM:
953 case WOWLAN_KEK_KCK_MATERIAL:
954 case ADD_STA_KEY:
955 /*
956 * blank out everything here, easier than dealing
957 * with the various versions of the command
958 */
959 frob_end = INT_MAX;
960 break;
961 case MGMT_MCAST_KEY:
962 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk);
963 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) !=
964 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk));
965
966 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk);
967 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) <
968 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk));
969 break;
970 }
971
972 if (frob_start >= frob_end)
973 return;
974
975 if (frob_end > len)
976 frob_end = len;
977
978 memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start);
979}
980
981static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen)
982{
983 const struct iwl_dump_exclude *excl;
984 struct iwl_mvm *mvm = ctx;
985 int i;
986
987 switch (mvm->fwrt.cur_fw_img) {
988 case IWL_UCODE_INIT:
989 default:
990 /* not relevant */
991 return;
992 case IWL_UCODE_REGULAR:
993 case IWL_UCODE_REGULAR_USNIFFER:
994 excl = mvm->fw->dump_excl;
995 break;
996 case IWL_UCODE_WOWLAN:
997 excl = mvm->fw->dump_excl_wowlan;
998 break;
999 }
1000
1001 BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) !=
1002 sizeof(mvm->fw->dump_excl_wowlan));
1003
1004 for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) {
1005 u32 start, end;
1006
1007 if (!excl[i].addr || !excl[i].size)
1008 continue;
1009
1010 start = excl[i].addr;
1011 end = start + excl[i].size;
1012
1013 if (end <= mem_addr || start >= mem_addr + buflen)
1014 continue;
1015
1016 if (start < mem_addr)
1017 start = mem_addr;
1018
1019 if (end > mem_addr + buflen)
1020 end = mem_addr + buflen;
1021
1022 memset((u8 *)mem + start - mem_addr, 0xAA, end - start);
1023 }
1024}
1025
1026static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = {
1027 .frob_txf = iwl_mvm_frob_txf,
1028 .frob_hcmd = iwl_mvm_frob_hcmd,
1029 .frob_mem = iwl_mvm_frob_mem,
1030};
1031
1032static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info)
1033{
1034 struct iwl_mvm *mvm = priv;
1035 struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info;
1036
1037 /*
1038 * This is protected by the guarantee that this function will not be
1039 * called twice on two different threads
1040 */
1041 prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true);
1042
1043 curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL);
1044 if (!curr_conn_info)
1045 return;
1046
1047 curr_conn_info->conn_info = *conn_info;
1048
1049 rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info);
1050
1051 if (prev_conn_info)
1052 kfree_rcu(prev_conn_info, rcu_head);
1053}
1054
1055static void iwl_mvm_mei_rfkill(void *priv, bool blocked,
1056 bool csme_taking_ownership)
1057{
1058 struct iwl_mvm *mvm = priv;
1059
1060 if (blocked && !csme_taking_ownership)
1061 return;
1062
1063 mvm->mei_rfkill_blocked = blocked;
1064 if (!mvm->hw_registered)
1065 return;
1066
1067 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
1068 mvm->mei_rfkill_blocked,
1069 RFKILL_HARD_BLOCK_NOT_OWNER);
1070}
1071
1072static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden)
1073{
1074 struct iwl_mvm *mvm = priv;
1075
1076 if (!mvm->hw_registered || !mvm->csme_vif)
1077 return;
1078
1079 iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden);
1080}
1081
1082static void iwl_mvm_sap_connected_wk(struct work_struct *wk)
1083{
1084 struct iwl_mvm *mvm =
1085 container_of(wk, struct iwl_mvm, sap_connected_wk);
1086 int ret;
1087
1088 ret = iwl_mvm_start_get_nvm(mvm);
1089 if (ret)
1090 goto out_free;
1091
1092 ret = iwl_mvm_start_post_nvm(mvm);
1093 if (ret)
1094 goto out_free;
1095
1096 return;
1097
1098out_free:
1099 IWL_ERR(mvm, "Couldn't get started...\n");
1100 iwl_mei_start_unregister();
1101 iwl_mei_unregister_complete();
1102 iwl_fw_flush_dumps(&mvm->fwrt);
1103 iwl_mvm_thermal_exit(mvm);
1104 iwl_fw_runtime_free(&mvm->fwrt);
1105 iwl_phy_db_free(mvm->phy_db);
1106 kfree(mvm->scan_cmd);
1107 iwl_trans_op_mode_leave(mvm->trans);
1108 kfree(mvm->nvm_data);
1109 kfree(mvm->mei_nvm_data);
1110
1111 ieee80211_free_hw(mvm->hw);
1112}
1113
1114static void iwl_mvm_mei_sap_connected(void *priv)
1115{
1116 struct iwl_mvm *mvm = priv;
1117
1118 if (!mvm->hw_registered)
1119 schedule_work(&mvm->sap_connected_wk);
1120}
1121
1122static void iwl_mvm_mei_nic_stolen(void *priv)
1123{
1124 struct iwl_mvm *mvm = priv;
1125
1126 rtnl_lock();
1127 cfg80211_shutdown_all_interfaces(mvm->hw->wiphy);
1128 rtnl_unlock();
1129}
1130
1131static const struct iwl_mei_ops mei_ops = {
1132 .me_conn_status = iwl_mvm_me_conn_status,
1133 .rfkill = iwl_mvm_mei_rfkill,
1134 .roaming_forbidden = iwl_mvm_mei_roaming_forbidden,
1135 .sap_connected = iwl_mvm_mei_sap_connected,
1136 .nic_stolen = iwl_mvm_mei_nic_stolen,
1137};
1138
1139static struct iwl_op_mode *
1140iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
1141 const struct iwl_fw *fw, struct dentry *dbgfs_dir)
1142{
1143 struct ieee80211_hw *hw;
1144 struct iwl_op_mode *op_mode;
1145 struct iwl_mvm *mvm;
1146 struct iwl_trans_config trans_cfg = {};
1147 static const u8 no_reclaim_cmds[] = {
1148 TX_CMD,
1149 };
1150 u32 max_agg;
1151 size_t scan_size;
1152 u32 min_backoff;
1153 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
1154
1155 /*
1156 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station
1157 * index all over the driver - check that its value corresponds to the
1158 * array size.
1159 */
1160 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) !=
1161 IWL_MVM_STATION_COUNT_MAX);
1162
1163 /********************************
1164 * 1. Allocating and configuring HW data
1165 ********************************/
1166 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
1167 sizeof(struct iwl_mvm),
1168 iwl_mvm_has_mld_api(fw) ? &iwl_mvm_mld_hw_ops :
1169 &iwl_mvm_hw_ops);
1170 if (!hw)
1171 return NULL;
1172
1173 if (trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ)
1174 max_agg = 512;
1175 else
1176 max_agg = IEEE80211_MAX_AMPDU_BUF_HE;
1177
1178 hw->max_rx_aggregation_subframes = max_agg;
1179
1180 if (cfg->max_tx_agg_size)
1181 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
1182 else
1183 hw->max_tx_aggregation_subframes = max_agg;
1184
1185 op_mode = hw->priv;
1186
1187 mvm = IWL_OP_MODE_GET_MVM(op_mode);
1188 mvm->dev = trans->dev;
1189 mvm->trans = trans;
1190 mvm->cfg = cfg;
1191 mvm->fw = fw;
1192 mvm->hw = hw;
1193
1194 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm,
1195 &iwl_mvm_sanitize_ops, mvm, dbgfs_dir);
1196
1197 iwl_mvm_get_acpi_tables(mvm);
1198 iwl_uefi_get_sgom_table(trans, &mvm->fwrt);
1199 iwl_uefi_get_step_table(trans);
1200
1201 mvm->init_status = 0;
1202
1203 if (iwl_mvm_has_new_rx_api(mvm)) {
1204 op_mode->ops = &iwl_mvm_ops_mq;
1205 trans->rx_mpdu_cmd_hdr_size =
1206 (trans->trans_cfg->device_family >=
1207 IWL_DEVICE_FAMILY_AX210) ?
1208 sizeof(struct iwl_rx_mpdu_desc) :
1209 IWL_RX_DESC_SIZE_V1;
1210 } else {
1211 op_mode->ops = &iwl_mvm_ops;
1212 trans->rx_mpdu_cmd_hdr_size =
1213 sizeof(struct iwl_rx_mpdu_res_start);
1214
1215 if (WARN_ON(trans->num_rx_queues > 1))
1216 goto out_free;
1217 }
1218
1219 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0;
1220
1221 if (iwl_mvm_has_new_tx_api(mvm)) {
1222 /*
1223 * If we have the new TX/queue allocation API initialize them
1224 * all to invalid numbers. We'll rewrite the ones that we need
1225 * later, but that doesn't happen for all of them all of the
1226 * time (e.g. P2P Device is optional), and if a dynamic queue
1227 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then
1228 * iwl_mvm_is_static_queue() erroneously returns true, and we
1229 * might have things getting stuck.
1230 */
1231 mvm->aux_queue = IWL_MVM_INVALID_QUEUE;
1232 mvm->snif_queue = IWL_MVM_INVALID_QUEUE;
1233 mvm->probe_queue = IWL_MVM_INVALID_QUEUE;
1234 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE;
1235 } else {
1236 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
1237 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE;
1238 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
1239 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE;
1240 }
1241
1242 mvm->sf_state = SF_UNINIT;
1243 if (iwl_mvm_has_unified_ucode(mvm))
1244 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR);
1245 else
1246 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT);
1247 mvm->drop_bcn_ap_mode = true;
1248
1249 mutex_init(&mvm->mutex);
1250 spin_lock_init(&mvm->async_handlers_lock);
1251 INIT_LIST_HEAD(&mvm->time_event_list);
1252 INIT_LIST_HEAD(&mvm->aux_roc_te_list);
1253 INIT_LIST_HEAD(&mvm->async_handlers_list);
1254 spin_lock_init(&mvm->time_event_lock);
1255 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list);
1256 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list);
1257 INIT_LIST_HEAD(&mvm->resp_pasn_list);
1258
1259 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
1260 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
1261 INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk);
1262 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
1263 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
1264 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
1265 INIT_LIST_HEAD(&mvm->add_stream_txqs);
1266 spin_lock_init(&mvm->add_stream_lock);
1267
1268 init_waitqueue_head(&mvm->rx_sync_waitq);
1269
1270 mvm->queue_sync_state = 0;
1271
1272 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
1273
1274 spin_lock_init(&mvm->tcm.lock);
1275 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work);
1276 mvm->tcm.ts = jiffies;
1277 mvm->tcm.ll_ts = jiffies;
1278 mvm->tcm.uapsd_nonagg_ts = jiffies;
1279
1280 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
1281
1282 mvm->cmd_ver.range_resp =
1283 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP,
1284 TOF_RANGE_RESPONSE_NOTIF, 5);
1285 /* we only support up to version 9 */
1286 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9))
1287 goto out_free;
1288
1289 /*
1290 * Populate the state variables that the transport layer needs
1291 * to know about.
1292 */
1293 trans_cfg.op_mode = op_mode;
1294 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
1295 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
1296
1297 switch (iwlwifi_mod_params.amsdu_size) {
1298 case IWL_AMSDU_DEF:
1299 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1300 break;
1301 case IWL_AMSDU_4K:
1302 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1303 break;
1304 case IWL_AMSDU_8K:
1305 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
1306 break;
1307 case IWL_AMSDU_12K:
1308 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
1309 break;
1310 default:
1311 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
1312 iwlwifi_mod_params.amsdu_size);
1313 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1314 }
1315
1316 trans->wide_cmd_header = true;
1317 trans_cfg.bc_table_dword =
1318 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210;
1319
1320 trans_cfg.command_groups = iwl_mvm_groups;
1321 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
1322
1323 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
1324 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
1325 trans_cfg.scd_set_active = true;
1326
1327 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
1328 driver_data[2]);
1329
1330 /* Set a short watchdog for the command queue */
1331 trans_cfg.cmd_q_wdg_timeout =
1332 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
1333
1334 snprintf(mvm->hw->wiphy->fw_version,
1335 sizeof(mvm->hw->wiphy->fw_version),
1336 "%.31s", fw->fw_version);
1337
1338 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa,
1339 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE);
1340
1341 trans_cfg.queue_alloc_cmd_ver =
1342 iwl_fw_lookup_cmd_ver(mvm->fw,
1343 WIDE_ID(DATA_PATH_GROUP,
1344 SCD_QUEUE_CONFIG_CMD),
1345 0);
1346 mvm->sta_remove_requires_queue_remove =
1347 trans_cfg.queue_alloc_cmd_ver > 0;
1348
1349 mvm->mld_api_is_used = iwl_mvm_has_mld_api(mvm->fw);
1350
1351 /* Configure transport layer */
1352 iwl_trans_configure(mvm->trans, &trans_cfg);
1353
1354 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
1355 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv;
1356 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg;
1357 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv,
1358 sizeof(trans->dbg.conf_tlv));
1359 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv;
1360
1361 trans->iml = mvm->fw->iml;
1362 trans->iml_len = mvm->fw->iml_len;
1363
1364 /* set up notification wait support */
1365 iwl_notification_wait_init(&mvm->notif_wait);
1366
1367 /* Init phy db */
1368 mvm->phy_db = iwl_phy_db_init(trans);
1369 if (!mvm->phy_db) {
1370 IWL_ERR(mvm, "Cannot init phy_db\n");
1371 goto out_free;
1372 }
1373
1374 IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
1375 mvm->trans->name, mvm->trans->hw_rev);
1376
1377 if (iwlwifi_mod_params.nvm_file)
1378 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
1379 else
1380 IWL_DEBUG_EEPROM(mvm->trans->dev,
1381 "working without external nvm file\n");
1382
1383 scan_size = iwl_mvm_scan_size(mvm);
1384
1385 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
1386 if (!mvm->scan_cmd)
1387 goto out_free;
1388 mvm->scan_cmd_size = scan_size;
1389
1390 /* invalidate ids to prevent accidental removal of sta_id 0 */
1391 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA;
1392 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA;
1393
1394 /* Set EBS as successful as long as not stated otherwise by the FW. */
1395 mvm->last_ebs_successful = true;
1396
1397 min_backoff = iwl_mvm_min_backoff(mvm);
1398 iwl_mvm_thermal_initialize(mvm, min_backoff);
1399
1400 if (!iwl_mvm_has_new_rx_stats_api(mvm))
1401 memset(&mvm->rx_stats_v3, 0,
1402 sizeof(struct mvm_statistics_rx_v3));
1403 else
1404 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
1405
1406 iwl_mvm_ftm_initiator_smooth_config(mvm);
1407
1408 iwl_mvm_init_time_sync(&mvm->time_sync);
1409
1410 mvm->debugfs_dir = dbgfs_dir;
1411
1412 mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops);
1413
1414 iwl_mvm_mei_scan_filter_init(&mvm->mei_scan_filter);
1415
1416 if (iwl_mvm_start_get_nvm(mvm)) {
1417 /*
1418 * Getting NVM failed while CSME is the owner, but we are
1419 * registered to MEI, we'll get the NVM later when it'll be
1420 * possible to get it from CSME.
1421 */
1422 if (trans->csme_own && mvm->mei_registered)
1423 return op_mode;
1424
1425 goto out_thermal_exit;
1426 }
1427
1428
1429 if (iwl_mvm_start_post_nvm(mvm))
1430 goto out_thermal_exit;
1431
1432 return op_mode;
1433
1434 out_thermal_exit:
1435 iwl_mvm_thermal_exit(mvm);
1436 if (mvm->mei_registered) {
1437 iwl_mei_start_unregister();
1438 iwl_mei_unregister_complete();
1439 }
1440 out_free:
1441 iwl_fw_flush_dumps(&mvm->fwrt);
1442 iwl_fw_runtime_free(&mvm->fwrt);
1443
1444 if (iwlmvm_mod_params.init_dbg)
1445 return op_mode;
1446 iwl_phy_db_free(mvm->phy_db);
1447 kfree(mvm->scan_cmd);
1448 iwl_trans_op_mode_leave(trans);
1449
1450 ieee80211_free_hw(mvm->hw);
1451 return NULL;
1452}
1453
1454void iwl_mvm_stop_device(struct iwl_mvm *mvm)
1455{
1456 lockdep_assert_held(&mvm->mutex);
1457
1458 iwl_fw_cancel_timestamp(&mvm->fwrt);
1459
1460 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1461
1462 iwl_fw_dbg_stop_sync(&mvm->fwrt);
1463 iwl_trans_stop_device(mvm->trans);
1464 iwl_free_fw_paging(&mvm->fwrt);
1465 iwl_fw_dump_conf_clear(&mvm->fwrt);
1466 iwl_mvm_mei_device_state(mvm, false);
1467}
1468
1469static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
1470{
1471 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1472 int i;
1473
1474 if (mvm->mei_registered) {
1475 rtnl_lock();
1476 iwl_mei_set_netdev(NULL);
1477 rtnl_unlock();
1478 iwl_mei_start_unregister();
1479 }
1480
1481 /*
1482 * After we unregister from mei, the worker can't be scheduled
1483 * anymore.
1484 */
1485 cancel_work_sync(&mvm->sap_connected_wk);
1486
1487 iwl_mvm_leds_exit(mvm);
1488
1489 iwl_mvm_thermal_exit(mvm);
1490
1491 /*
1492 * If we couldn't get ownership on the device and we couldn't
1493 * get the NVM from CSME, we haven't registered to mac80211.
1494 * In that case, we didn't fail op_mode_start, because we are
1495 * waiting for CSME to allow us to get the NVM to register to
1496 * mac80211. If that didn't happen, we haven't registered to
1497 * mac80211, hence the if below.
1498 */
1499 if (mvm->hw_registered)
1500 ieee80211_unregister_hw(mvm->hw);
1501
1502 kfree(mvm->scan_cmd);
1503 kfree(mvm->mcast_filter_cmd);
1504 mvm->mcast_filter_cmd = NULL;
1505
1506 kfree(mvm->error_recovery_buf);
1507 mvm->error_recovery_buf = NULL;
1508
1509 iwl_mvm_ptp_remove(mvm);
1510
1511 iwl_trans_op_mode_leave(mvm->trans);
1512
1513 iwl_phy_db_free(mvm->phy_db);
1514 mvm->phy_db = NULL;
1515
1516 kfree(mvm->nvm_data);
1517 kfree(mvm->mei_nvm_data);
1518 kfree(rcu_access_pointer(mvm->csme_conn_info));
1519 kfree(mvm->temp_nvm_data);
1520 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
1521 kfree(mvm->nvm_sections[i].data);
1522
1523 cancel_delayed_work_sync(&mvm->tcm.work);
1524
1525 iwl_fw_runtime_free(&mvm->fwrt);
1526 mutex_destroy(&mvm->mutex);
1527
1528 if (mvm->mei_registered)
1529 iwl_mei_unregister_complete();
1530
1531 ieee80211_free_hw(mvm->hw);
1532}
1533
1534struct iwl_async_handler_entry {
1535 struct list_head list;
1536 struct iwl_rx_cmd_buffer rxb;
1537 enum iwl_rx_handler_context context;
1538 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1539};
1540
1541void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
1542{
1543 struct iwl_async_handler_entry *entry, *tmp;
1544
1545 spin_lock_bh(&mvm->async_handlers_lock);
1546 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
1547 iwl_free_rxb(&entry->rxb);
1548 list_del(&entry->list);
1549 kfree(entry);
1550 }
1551 spin_unlock_bh(&mvm->async_handlers_lock);
1552}
1553
1554static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
1555{
1556 struct iwl_mvm *mvm =
1557 container_of(wk, struct iwl_mvm, async_handlers_wk);
1558 struct iwl_async_handler_entry *entry, *tmp;
1559 LIST_HEAD(local_list);
1560
1561 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
1562
1563 /*
1564 * Sync with Rx path with a lock. Remove all the entries from this list,
1565 * add them to a local one (lock free), and then handle them.
1566 */
1567 spin_lock_bh(&mvm->async_handlers_lock);
1568 list_splice_init(&mvm->async_handlers_list, &local_list);
1569 spin_unlock_bh(&mvm->async_handlers_lock);
1570
1571 list_for_each_entry_safe(entry, tmp, &local_list, list) {
1572 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1573 mutex_lock(&mvm->mutex);
1574 entry->fn(mvm, &entry->rxb);
1575 iwl_free_rxb(&entry->rxb);
1576 list_del(&entry->list);
1577 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1578 mutex_unlock(&mvm->mutex);
1579 kfree(entry);
1580 }
1581}
1582
1583static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
1584 struct iwl_rx_packet *pkt)
1585{
1586 struct iwl_fw_dbg_trigger_tlv *trig;
1587 struct iwl_fw_dbg_trigger_cmd *cmds_trig;
1588 int i;
1589
1590 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL,
1591 FW_DBG_TRIGGER_FW_NOTIF);
1592 if (!trig)
1593 return;
1594
1595 cmds_trig = (void *)trig->data;
1596
1597 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
1598 /* don't collect on CMD 0 */
1599 if (!cmds_trig->cmds[i].cmd_id)
1600 break;
1601
1602 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
1603 cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
1604 continue;
1605
1606 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
1607 "CMD 0x%02x.%02x received",
1608 pkt->hdr.group_id, pkt->hdr.cmd);
1609 break;
1610 }
1611}
1612
1613static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
1614 struct iwl_rx_cmd_buffer *rxb,
1615 struct iwl_rx_packet *pkt)
1616{
1617 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt);
1618 int i;
1619 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt };
1620
1621 iwl_dbg_tlv_time_point(&mvm->fwrt,
1622 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data);
1623 iwl_mvm_rx_check_trigger(mvm, pkt);
1624
1625 /*
1626 * Do the notification wait before RX handlers so
1627 * even if the RX handler consumes the RXB we have
1628 * access to it in the notification wait entry.
1629 */
1630 iwl_notification_wait_notify(&mvm->notif_wait, pkt);
1631
1632 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
1633 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
1634 struct iwl_async_handler_entry *entry;
1635
1636 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
1637 continue;
1638
1639 if (IWL_FW_CHECK(mvm, pkt_len < rx_h->min_size,
1640 "unexpected notification 0x%04x size %d, need %d\n",
1641 rx_h->cmd_id, pkt_len, rx_h->min_size))
1642 return;
1643
1644 if (rx_h->context == RX_HANDLER_SYNC) {
1645 rx_h->fn(mvm, rxb);
1646 return;
1647 }
1648
1649 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
1650 /* we can't do much... */
1651 if (!entry)
1652 return;
1653
1654 entry->rxb._page = rxb_steal_page(rxb);
1655 entry->rxb._offset = rxb->_offset;
1656 entry->rxb._rx_page_order = rxb->_rx_page_order;
1657 entry->fn = rx_h->fn;
1658 entry->context = rx_h->context;
1659 spin_lock(&mvm->async_handlers_lock);
1660 list_add_tail(&entry->list, &mvm->async_handlers_list);
1661 spin_unlock(&mvm->async_handlers_lock);
1662 schedule_work(&mvm->async_handlers_wk);
1663 break;
1664 }
1665}
1666
1667static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
1668 struct napi_struct *napi,
1669 struct iwl_rx_cmd_buffer *rxb)
1670{
1671 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1672 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1673 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1674
1675 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1676 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
1677 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
1678 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
1679 else
1680 iwl_mvm_rx_common(mvm, rxb, pkt);
1681}
1682
1683void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
1684 struct napi_struct *napi,
1685 struct iwl_rx_cmd_buffer *rxb)
1686{
1687 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1688 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1689 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1690
1691 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1692 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
1693 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1694 RX_QUEUES_NOTIFICATION)))
1695 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0);
1696 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
1697 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
1698 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE))
1699 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0);
1700 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF))
1701 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0);
1702 else
1703 iwl_mvm_rx_common(mvm, rxb, pkt);
1704}
1705
1706static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue)
1707{
1708 return queue == mvm->aux_queue || queue == mvm->probe_queue ||
1709 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue;
1710}
1711
1712static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode,
1713 int hw_queue, bool start)
1714{
1715 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1716 struct ieee80211_sta *sta;
1717 struct ieee80211_txq *txq;
1718 struct iwl_mvm_txq *mvmtxq;
1719 int i;
1720 unsigned long tid_bitmap;
1721 struct iwl_mvm_sta *mvmsta;
1722 u8 sta_id;
1723
1724 sta_id = iwl_mvm_has_new_tx_api(mvm) ?
1725 mvm->tvqm_info[hw_queue].sta_id :
1726 mvm->queue_info[hw_queue].ra_sta_id;
1727
1728 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations))
1729 return;
1730
1731 rcu_read_lock();
1732
1733 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1734 if (IS_ERR_OR_NULL(sta))
1735 goto out;
1736 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1737
1738 if (iwl_mvm_is_static_queue(mvm, hw_queue)) {
1739 if (!start)
1740 ieee80211_stop_queues(mvm->hw);
1741 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1742 ieee80211_wake_queues(mvm->hw);
1743
1744 goto out;
1745 }
1746
1747 if (iwl_mvm_has_new_tx_api(mvm)) {
1748 int tid = mvm->tvqm_info[hw_queue].txq_tid;
1749
1750 tid_bitmap = BIT(tid);
1751 } else {
1752 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap;
1753 }
1754
1755 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
1756 int tid = i;
1757
1758 if (tid == IWL_MAX_TID_COUNT)
1759 tid = IEEE80211_NUM_TIDS;
1760
1761 txq = sta->txq[tid];
1762 mvmtxq = iwl_mvm_txq_from_mac80211(txq);
1763 if (start)
1764 clear_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state);
1765 else
1766 set_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state);
1767
1768 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) {
1769 local_bh_disable();
1770 iwl_mvm_mac_itxq_xmit(mvm->hw, txq);
1771 local_bh_enable();
1772 }
1773 }
1774
1775out:
1776 rcu_read_unlock();
1777}
1778
1779static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1780{
1781 iwl_mvm_queue_state_change(op_mode, hw_queue, false);
1782}
1783
1784static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1785{
1786 iwl_mvm_queue_state_change(op_mode, hw_queue, true);
1787}
1788
1789static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm)
1790{
1791 bool state = iwl_mvm_is_radio_killed(mvm);
1792
1793 if (state)
1794 wake_up(&mvm->rx_sync_waitq);
1795
1796 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
1797}
1798
1799void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1800{
1801 if (state)
1802 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1803 else
1804 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1805
1806 iwl_mvm_set_rfkill_state(mvm);
1807}
1808
1809struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm)
1810{
1811 return rcu_dereference_protected(mvm->csme_conn_info,
1812 lockdep_is_held(&mvm->mutex));
1813}
1814
1815static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
1816{
1817 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1818 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done);
1819 bool unified = iwl_mvm_has_unified_ucode(mvm);
1820
1821 if (state)
1822 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1823 else
1824 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1825
1826 iwl_mvm_set_rfkill_state(mvm);
1827
1828 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */
1829 if (rfkill_safe_init_done)
1830 iwl_abort_notification_waits(&mvm->notif_wait);
1831
1832 /*
1833 * Don't ask the transport to stop the firmware. We'll do it
1834 * after cfg80211 takes us down.
1835 */
1836 if (unified)
1837 return false;
1838
1839 /*
1840 * Stop the device if we run OPERATIONAL firmware or if we are in the
1841 * middle of the calibrations.
1842 */
1843 return state && rfkill_safe_init_done;
1844}
1845
1846static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1847{
1848 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1849 struct ieee80211_tx_info *info;
1850
1851 info = IEEE80211_SKB_CB(skb);
1852 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1853 ieee80211_free_txskb(mvm->hw, skb);
1854}
1855
1856struct iwl_mvm_reprobe {
1857 struct device *dev;
1858 struct work_struct work;
1859};
1860
1861static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1862{
1863 struct iwl_mvm_reprobe *reprobe;
1864
1865 reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1866 if (device_reprobe(reprobe->dev))
1867 dev_err(reprobe->dev, "reprobe failed!\n");
1868 put_device(reprobe->dev);
1869 kfree(reprobe);
1870 module_put(THIS_MODULE);
1871}
1872
1873void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1874{
1875 iwl_abort_notification_waits(&mvm->notif_wait);
1876 iwl_dbg_tlv_del_timers(mvm->trans);
1877
1878 /*
1879 * This is a bit racy, but worst case we tell mac80211 about
1880 * a stopped/aborted scan when that was already done which
1881 * is not a problem. It is necessary to abort any os scan
1882 * here because mac80211 requires having the scan cleared
1883 * before restarting.
1884 * We'll reset the scan_status to NONE in restart cleanup in
1885 * the next start() call from mac80211. If restart isn't called
1886 * (no fw restart) scan status will stay busy.
1887 */
1888 iwl_mvm_report_scan_aborted(mvm);
1889
1890 /*
1891 * If we're restarting already, don't cycle restarts.
1892 * If INIT fw asserted, it will likely fail again.
1893 * If WoWLAN fw asserted, don't restart either, mac80211
1894 * can't recover this since we're already half suspended.
1895 */
1896 if (!mvm->fw_restart && fw_error) {
1897 iwl_fw_error_collect(&mvm->fwrt, false);
1898 } else if (test_bit(IWL_MVM_STATUS_STARTING,
1899 &mvm->status)) {
1900 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n");
1901 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1902 struct iwl_mvm_reprobe *reprobe;
1903
1904 IWL_ERR(mvm,
1905 "Firmware error during reconfiguration - reprobe!\n");
1906
1907 /*
1908 * get a module reference to avoid doing this while unloading
1909 * anyway and to avoid scheduling a work with code that's
1910 * being removed.
1911 */
1912 if (!try_module_get(THIS_MODULE)) {
1913 IWL_ERR(mvm, "Module is being unloaded - abort\n");
1914 return;
1915 }
1916
1917 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1918 if (!reprobe) {
1919 module_put(THIS_MODULE);
1920 return;
1921 }
1922 reprobe->dev = get_device(mvm->trans->dev);
1923 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1924 schedule_work(&reprobe->work);
1925 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1926 &mvm->status)) {
1927 IWL_ERR(mvm, "HW restart already requested, but not started\n");
1928 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR &&
1929 mvm->hw_registered &&
1930 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {
1931 /* This should be first thing before trying to collect any
1932 * data to avoid endless loops if any HW error happens while
1933 * collecting debug data.
1934 */
1935 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1936
1937 if (mvm->fw->ucode_capa.error_log_size) {
1938 u32 src_size = mvm->fw->ucode_capa.error_log_size;
1939 u32 src_addr = mvm->fw->ucode_capa.error_log_addr;
1940 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC);
1941
1942 if (recover_buf) {
1943 mvm->error_recovery_buf = recover_buf;
1944 iwl_trans_read_mem_bytes(mvm->trans,
1945 src_addr,
1946 recover_buf,
1947 src_size);
1948 }
1949 }
1950
1951 iwl_fw_error_collect(&mvm->fwrt, false);
1952
1953 if (fw_error && mvm->fw_restart > 0) {
1954 mvm->fw_restart--;
1955 ieee80211_restart_hw(mvm->hw);
1956 } else if (mvm->fwrt.trans->dbg.restart_required) {
1957 IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n");
1958 mvm->fwrt.trans->dbg.restart_required = FALSE;
1959 ieee80211_restart_hw(mvm->hw);
1960 } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) {
1961 ieee80211_restart_hw(mvm->hw);
1962 }
1963 }
1964}
1965
1966static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync)
1967{
1968 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1969
1970 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) &&
1971 !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE,
1972 &mvm->status))
1973 iwl_mvm_dump_nic_error_log(mvm);
1974
1975 if (sync) {
1976 iwl_fw_error_collect(&mvm->fwrt, true);
1977 /*
1978 * Currently, the only case for sync=true is during
1979 * shutdown, so just stop in this case. If/when that
1980 * changes, we need to be a bit smarter here.
1981 */
1982 return;
1983 }
1984
1985 /*
1986 * If the firmware crashes while we're already considering it
1987 * to be dead then don't ask for a restart, that cannot do
1988 * anything useful anyway.
1989 */
1990 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status))
1991 return;
1992
1993 iwl_mvm_nic_restart(mvm, false);
1994}
1995
1996static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1997{
1998 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1999
2000 WARN_ON(1);
2001 iwl_mvm_nic_restart(mvm, true);
2002}
2003
2004static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode,
2005 enum iwl_fw_ini_time_point tp_id,
2006 union iwl_dbg_tlv_tp_data *tp_data)
2007{
2008 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
2009
2010 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data);
2011}
2012
2013#define IWL_MVM_COMMON_OPS \
2014 /* these could be differentiated */ \
2015 .queue_full = iwl_mvm_stop_sw_queue, \
2016 .queue_not_full = iwl_mvm_wake_sw_queue, \
2017 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \
2018 .free_skb = iwl_mvm_free_skb, \
2019 .nic_error = iwl_mvm_nic_error, \
2020 .cmd_queue_full = iwl_mvm_cmd_queue_full, \
2021 .nic_config = iwl_mvm_nic_config, \
2022 /* as we only register one, these MUST be common! */ \
2023 .start = iwl_op_mode_mvm_start, \
2024 .stop = iwl_op_mode_mvm_stop, \
2025 .time_point = iwl_op_mode_mvm_time_point
2026
2027static const struct iwl_op_mode_ops iwl_mvm_ops = {
2028 IWL_MVM_COMMON_OPS,
2029 .rx = iwl_mvm_rx,
2030};
2031
2032static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
2033 struct napi_struct *napi,
2034 struct iwl_rx_cmd_buffer *rxb,
2035 unsigned int queue)
2036{
2037 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
2038 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2039 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
2040
2041 if (unlikely(queue >= mvm->trans->num_rx_queues))
2042 return;
2043
2044 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
2045 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
2046 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
2047 RX_QUEUES_NOTIFICATION)))
2048 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue);
2049 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
2050 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
2051}
2052
2053static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
2054 IWL_MVM_COMMON_OPS,
2055 .rx = iwl_mvm_rx_mq,
2056 .rx_rss = iwl_mvm_rx_mq_rss,
2057};