1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3 * Copyright (C) 2012-2014, 2018-2020 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
33 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
34 MODULE_DESCRIPTION(DRV_DESCRIPTION);
35 MODULE_LICENSE("GPL");
36 MODULE_IMPORT_NS(IWLWIFI);
37
38 static const struct iwl_op_mode_ops iwl_mvm_ops;
39 static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
40
41 struct iwl_mvm_mod_params iwlmvm_mod_params = {
42 .power_scheme = IWL_POWER_SCHEME_BPS,
43 /* rest of fields are 0 by default */
44 };
45
46 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444);
47 MODULE_PARM_DESC(init_dbg,
48 "set to true to debug an ASSERT in INIT fw (default: false");
49 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444);
50 MODULE_PARM_DESC(power_scheme,
51 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
52
53 /*
54 * module init and exit functions
55 */
iwl_mvm_init(void)56 static int __init iwl_mvm_init(void)
57 {
58 int ret;
59
60 ret = iwl_mvm_rate_control_register();
61 if (ret) {
62 pr_err("Unable to register rate control algorithm: %d\n", ret);
63 return ret;
64 }
65
66 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
67 if (ret)
68 pr_err("Unable to register MVM op_mode: %d\n", ret);
69
70 return ret;
71 }
72 module_init(iwl_mvm_init);
73
iwl_mvm_exit(void)74 static void __exit iwl_mvm_exit(void)
75 {
76 iwl_opmode_deregister("iwlmvm");
77 iwl_mvm_rate_control_unregister();
78 }
79 module_exit(iwl_mvm_exit);
80
iwl_mvm_nic_config(struct iwl_op_mode * op_mode)81 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
82 {
83 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
84 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
85 u32 reg_val;
86 u32 phy_config = iwl_mvm_get_phy_config(mvm);
87
88 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
89 FW_PHY_CFG_RADIO_TYPE_POS;
90 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
91 FW_PHY_CFG_RADIO_STEP_POS;
92 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
93 FW_PHY_CFG_RADIO_DASH_POS;
94
95 /* SKU control */
96 reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev);
97
98 /* radio configuration */
99 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
100 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
101 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
102
103 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
104 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
105
106 /*
107 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC
108 * sampling, and shouldn't be set to any non-zero value.
109 * The same is supposed to be true of the other HW, but unsetting
110 * them (such as the 7260) causes automatic tests to fail on seemingly
111 * unrelated errors. Need to further investigate this, but for now
112 * we'll separate cases.
113 */
114 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000)
115 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
116
117 if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt))
118 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG;
119
120 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
121 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH |
122 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
123 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
124 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
125 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
126 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI |
127 CSR_HW_IF_CONFIG_REG_D3_DEBUG,
128 reg_val);
129
130 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
131 radio_cfg_step, radio_cfg_dash);
132
133 /*
134 * W/A : NIC is stuck in a reset state after Early PCIe power off
135 * (PCIe power is lost before PERST# is asserted), causing ME FW
136 * to lose ownership and not being able to obtain it back.
137 */
138 if (!mvm->trans->cfg->apmg_not_supported)
139 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
140 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
141 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
142 }
143
iwl_mvm_rx_monitor_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)144 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm,
145 struct iwl_rx_cmd_buffer *rxb)
146 {
147 struct iwl_rx_packet *pkt = rxb_addr(rxb);
148 struct iwl_datapath_monitor_notif *notif = (void *)pkt->data;
149 struct ieee80211_supported_band *sband;
150 const struct ieee80211_sta_he_cap *he_cap;
151 struct ieee80211_vif *vif;
152
153 if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA))
154 return;
155
156 vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id);
157 if (!vif || vif->type != NL80211_IFTYPE_STATION)
158 return;
159
160 if (!vif->bss_conf.chandef.chan ||
161 vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ ||
162 vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40)
163 return;
164
165 if (!vif->cfg.assoc)
166 return;
167
168 /* this shouldn't happen *again*, ignore it */
169 if (mvm->cca_40mhz_workaround)
170 return;
171
172 /*
173 * We'll decrement this on disconnect - so set to 2 since we'll
174 * still have to disconnect from the current AP first.
175 */
176 mvm->cca_40mhz_workaround = 2;
177
178 /*
179 * This capability manipulation isn't really ideal, but it's the
180 * easiest choice - otherwise we'd have to do some major changes
181 * in mac80211 to support this, which isn't worth it. This does
182 * mean that userspace may have outdated information, but that's
183 * actually not an issue at all.
184 */
185 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
186
187 WARN_ON(!sband->ht_cap.ht_supported);
188 WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40));
189 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
190
191 he_cap = ieee80211_get_he_iftype_cap(sband,
192 ieee80211_vif_type_p2p(vif));
193
194 if (he_cap) {
195 /* we know that ours is writable */
196 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap;
197
198 WARN_ON(!he->has_he);
199 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] &
200 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G));
201 he->he_cap_elem.phy_cap_info[0] &=
202 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
203 }
204
205 ieee80211_disconnect(vif, true);
206 }
207
iwl_mvm_apply_fw_smps_request(struct ieee80211_vif * vif)208 void iwl_mvm_apply_fw_smps_request(struct ieee80211_vif *vif)
209 {
210 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
211 struct iwl_mvm *mvm = mvmvif->mvm;
212 enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC;
213
214 if (mvm->fw_static_smps_request &&
215 vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_160 &&
216 vif->bss_conf.he_support)
217 mode = IEEE80211_SMPS_STATIC;
218
219 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode);
220 }
221
iwl_mvm_intf_dual_chain_req(void * data,u8 * mac,struct ieee80211_vif * vif)222 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac,
223 struct ieee80211_vif *vif)
224 {
225 iwl_mvm_apply_fw_smps_request(vif);
226 }
227
iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)228 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm,
229 struct iwl_rx_cmd_buffer *rxb)
230 {
231 struct iwl_rx_packet *pkt = rxb_addr(rxb);
232 struct iwl_thermal_dual_chain_request *req = (void *)pkt->data;
233
234 /*
235 * We could pass it to the iterator data, but also need to remember
236 * it for new interfaces that are added while in this state.
237 */
238 mvm->fw_static_smps_request =
239 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE);
240 ieee80211_iterate_interfaces(mvm->hw,
241 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER,
242 iwl_mvm_intf_dual_chain_req, NULL);
243 }
244
245 /**
246 * enum iwl_rx_handler_context context for Rx handler
247 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path
248 * which can't acquire mvm->mutex.
249 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex
250 * (and only in this case!), it should be set as ASYNC. In that case,
251 * it will be called from a worker with mvm->mutex held.
252 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the
253 * mutex itself, it will be called from a worker without mvm->mutex held.
254 */
255 enum iwl_rx_handler_context {
256 RX_HANDLER_SYNC,
257 RX_HANDLER_ASYNC_LOCKED,
258 RX_HANDLER_ASYNC_UNLOCKED,
259 };
260
261 /**
262 * struct iwl_rx_handlers handler for FW notification
263 * @cmd_id: command id
264 * @min_size: minimum size to expect for the notification
265 * @context: see &iwl_rx_handler_context
266 * @fn: the function is called when notification is received
267 */
268 struct iwl_rx_handlers {
269 u16 cmd_id, min_size;
270 enum iwl_rx_handler_context context;
271 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
272 };
273
274 #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context) \
275 { .cmd_id = _cmd_id, .fn = _fn, .context = _context, }
276 #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context) \
277 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, }
278 #define RX_HANDLER(_cmd_id, _fn, _context, _struct) \
279 { .cmd_id = _cmd_id, .fn = _fn, \
280 .context = _context, .min_size = sizeof(_struct), }
281 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct) \
282 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, \
283 .context = _context, .min_size = sizeof(_struct), }
284
285 /*
286 * Handlers for fw notifications
287 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
288 * This list should be in order of frequency for performance purposes.
289 *
290 * The handler can be one from three contexts, see &iwl_rx_handler_context
291 */
292 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
293 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC,
294 struct iwl_mvm_tx_resp),
295 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC,
296 struct iwl_mvm_ba_notif),
297
298 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF,
299 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC,
300 struct iwl_tlc_update_notif),
301
302 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif,
303 RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif),
304 RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif,
305 RX_HANDLER_ASYNC_LOCKED),
306 RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics,
307 RX_HANDLER_ASYNC_LOCKED),
308
309 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID,
310 iwl_mvm_window_status_notif, RX_HANDLER_SYNC,
311 struct iwl_ba_window_status_notif),
312
313 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif,
314 RX_HANDLER_SYNC, struct iwl_time_event_notif),
315 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF,
316 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC,
317 struct iwl_mvm_session_prot_notif),
318 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc,
319 RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif),
320
321 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC,
322 struct iwl_mvm_eosp_notification),
323
324 RX_HANDLER(SCAN_ITERATION_COMPLETE,
325 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC,
326 struct iwl_lmac_scan_complete_notif),
327 RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
328 iwl_mvm_rx_lmac_scan_complete_notif,
329 RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete),
330 RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION,
331 iwl_mvm_rx_scan_match_found,
332 RX_HANDLER_SYNC),
333 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
334 RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete),
335 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
336 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC,
337 struct iwl_umac_scan_iter_complete_notif),
338
339 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
340 RX_HANDLER_SYNC, struct iwl_missed_beacons_notif),
341
342 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC,
343 struct iwl_error_resp),
344 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
345 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC,
346 struct iwl_uapsd_misbehaving_ap_notif),
347 RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif,
348 RX_HANDLER_ASYNC_LOCKED),
349 RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
350 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED),
351 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION,
352 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC,
353 struct ct_kill_notif),
354
355 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
356 RX_HANDLER_ASYNC_LOCKED,
357 struct iwl_tdls_channel_switch_notif),
358 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif,
359 RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1),
360 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS,
361 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED,
362 struct iwl_ftm_responder_stats),
363
364 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF,
365 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED),
366 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF,
367 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED),
368
369 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF,
370 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC,
371 struct iwl_mfu_assert_dump_notif),
372 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF,
373 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC,
374 struct iwl_stored_beacon_notif_v2),
375 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF,
376 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC,
377 struct iwl_mu_group_mgmt_notif),
378 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF,
379 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC,
380 struct iwl_mvm_pm_state_notification),
381 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF,
382 iwl_mvm_probe_resp_data_notif,
383 RX_HANDLER_ASYNC_LOCKED,
384 struct iwl_probe_resp_data_notif),
385 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF,
386 iwl_mvm_channel_switch_start_notif,
387 RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif),
388 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF,
389 iwl_mvm_channel_switch_error_notif,
390 RX_HANDLER_ASYNC_UNLOCKED,
391 struct iwl_channel_switch_error_notif),
392 RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF,
393 iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED,
394 struct iwl_datapath_monitor_notif),
395
396 RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST,
397 iwl_mvm_rx_thermal_dual_chain_req,
398 RX_HANDLER_ASYNC_LOCKED,
399 struct iwl_thermal_dual_chain_request),
400
401 RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF,
402 iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED,
403 struct iwl_rfi_deactivate_notif),
404 };
405 #undef RX_HANDLER
406 #undef RX_HANDLER_GRP
407
408 /* Please keep this array *SORTED* by hex value.
409 * Access is done through binary search
410 */
411 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
412 HCMD_NAME(UCODE_ALIVE_NTFY),
413 HCMD_NAME(REPLY_ERROR),
414 HCMD_NAME(ECHO_CMD),
415 HCMD_NAME(INIT_COMPLETE_NOTIF),
416 HCMD_NAME(PHY_CONTEXT_CMD),
417 HCMD_NAME(DBG_CFG),
418 HCMD_NAME(SCAN_CFG_CMD),
419 HCMD_NAME(SCAN_REQ_UMAC),
420 HCMD_NAME(SCAN_ABORT_UMAC),
421 HCMD_NAME(SCAN_COMPLETE_UMAC),
422 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID),
423 HCMD_NAME(ADD_STA_KEY),
424 HCMD_NAME(ADD_STA),
425 HCMD_NAME(REMOVE_STA),
426 HCMD_NAME(FW_GET_ITEM_CMD),
427 HCMD_NAME(TX_CMD),
428 HCMD_NAME(SCD_QUEUE_CFG),
429 HCMD_NAME(TXPATH_FLUSH),
430 HCMD_NAME(MGMT_MCAST_KEY),
431 HCMD_NAME(WEP_KEY),
432 HCMD_NAME(SHARED_MEM_CFG),
433 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
434 HCMD_NAME(MAC_CONTEXT_CMD),
435 HCMD_NAME(TIME_EVENT_CMD),
436 HCMD_NAME(TIME_EVENT_NOTIFICATION),
437 HCMD_NAME(BINDING_CONTEXT_CMD),
438 HCMD_NAME(TIME_QUOTA_CMD),
439 HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
440 HCMD_NAME(LEDS_CMD),
441 HCMD_NAME(LQ_CMD),
442 HCMD_NAME(FW_PAGING_BLOCK_CMD),
443 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
444 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
445 HCMD_NAME(HOT_SPOT_CMD),
446 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
447 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
448 HCMD_NAME(BT_COEX_CI),
449 HCMD_NAME(PHY_CONFIGURATION_CMD),
450 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
451 HCMD_NAME(PHY_DB_CMD),
452 HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
453 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
454 HCMD_NAME(POWER_TABLE_CMD),
455 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
456 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
457 HCMD_NAME(NVM_ACCESS_CMD),
458 HCMD_NAME(BEACON_NOTIFICATION),
459 HCMD_NAME(BEACON_TEMPLATE_CMD),
460 HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
461 HCMD_NAME(BT_CONFIG),
462 HCMD_NAME(STATISTICS_CMD),
463 HCMD_NAME(STATISTICS_NOTIFICATION),
464 HCMD_NAME(EOSP_NOTIFICATION),
465 HCMD_NAME(REDUCE_TX_POWER_CMD),
466 HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
467 HCMD_NAME(TDLS_CONFIG_CMD),
468 HCMD_NAME(MAC_PM_POWER_TABLE),
469 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
470 HCMD_NAME(MFUART_LOAD_NOTIFICATION),
471 HCMD_NAME(RSS_CONFIG_CMD),
472 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
473 HCMD_NAME(REPLY_RX_PHY_CMD),
474 HCMD_NAME(REPLY_RX_MPDU_CMD),
475 HCMD_NAME(BAR_FRAME_RELEASE),
476 HCMD_NAME(FRAME_RELEASE),
477 HCMD_NAME(BA_NOTIF),
478 HCMD_NAME(MCC_UPDATE_CMD),
479 HCMD_NAME(MCC_CHUB_UPDATE_CMD),
480 HCMD_NAME(MARKER_CMD),
481 HCMD_NAME(BT_PROFILE_NOTIFICATION),
482 HCMD_NAME(MCAST_FILTER_CMD),
483 HCMD_NAME(REPLY_SF_CFG_CMD),
484 HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
485 HCMD_NAME(D3_CONFIG_CMD),
486 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
487 HCMD_NAME(OFFLOADS_QUERY_CMD),
488 HCMD_NAME(MATCH_FOUND_NOTIFICATION),
489 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
490 HCMD_NAME(WOWLAN_PATTERNS),
491 HCMD_NAME(WOWLAN_CONFIGURATION),
492 HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
493 HCMD_NAME(WOWLAN_TKIP_PARAM),
494 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
495 HCMD_NAME(WOWLAN_GET_STATUSES),
496 HCMD_NAME(SCAN_ITERATION_COMPLETE),
497 HCMD_NAME(D0I3_END_CMD),
498 HCMD_NAME(LTR_CONFIG),
499 HCMD_NAME(LDBG_CONFIG_CMD),
500 };
501
502 /* Please keep this array *SORTED* by hex value.
503 * Access is done through binary search
504 */
505 static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
506 HCMD_NAME(SHARED_MEM_CFG_CMD),
507 HCMD_NAME(INIT_EXTENDED_CFG_CMD),
508 HCMD_NAME(FW_ERROR_RECOVERY_CMD),
509 HCMD_NAME(RFI_CONFIG_CMD),
510 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD),
511 HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD),
512 HCMD_NAME(RFI_DEACTIVATE_NOTIF),
513 };
514
515 /* Please keep this array *SORTED* by hex value.
516 * Access is done through binary search
517 */
518 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
519 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD),
520 HCMD_NAME(SESSION_PROTECTION_CMD),
521 HCMD_NAME(SESSION_PROTECTION_NOTIF),
522 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF),
523 };
524
525 /* Please keep this array *SORTED* by hex value.
526 * Access is done through binary search
527 */
528 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
529 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
530 HCMD_NAME(CTDP_CONFIG_CMD),
531 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
532 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD),
533 HCMD_NAME(CT_KILL_NOTIFICATION),
534 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
535 };
536
537 /* Please keep this array *SORTED* by hex value.
538 * Access is done through binary search
539 */
540 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
541 HCMD_NAME(DQA_ENABLE_CMD),
542 HCMD_NAME(UPDATE_MU_GROUPS_CMD),
543 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
544 HCMD_NAME(STA_HE_CTXT_CMD),
545 HCMD_NAME(RLC_CONFIG_CMD),
546 HCMD_NAME(RFH_QUEUE_CONFIG_CMD),
547 HCMD_NAME(TLC_MNG_CONFIG_CMD),
548 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD),
549 HCMD_NAME(SCD_QUEUE_CONFIG_CMD),
550 HCMD_NAME(MONITOR_NOTIF),
551 HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST),
552 HCMD_NAME(STA_PM_NOTIF),
553 HCMD_NAME(MU_GROUP_MGMT_NOTIF),
554 HCMD_NAME(RX_QUEUES_NOTIFICATION),
555 };
556
557 /* Please keep this array *SORTED* by hex value.
558 * Access is done through binary search
559 */
560 static const struct iwl_hcmd_names iwl_mvm_scan_names[] = {
561 HCMD_NAME(OFFLOAD_MATCH_INFO_NOTIF),
562 };
563
564 /* Please keep this array *SORTED* by hex value.
565 * Access is done through binary search
566 */
567 static const struct iwl_hcmd_names iwl_mvm_location_names[] = {
568 HCMD_NAME(TOF_RANGE_REQ_CMD),
569 HCMD_NAME(TOF_CONFIG_CMD),
570 HCMD_NAME(TOF_RANGE_ABORT_CMD),
571 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD),
572 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD),
573 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD),
574 HCMD_NAME(TOF_LC_NOTIF),
575 HCMD_NAME(TOF_RESPONDER_STATS),
576 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF),
577 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF),
578 };
579
580 /* Please keep this array *SORTED* by hex value.
581 * Access is done through binary search
582 */
583 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
584 HCMD_NAME(WOWLAN_WAKE_PKT_NOTIFICATION),
585 HCMD_NAME(WOWLAN_INFO_NOTIFICATION),
586 HCMD_NAME(D3_END_NOTIFICATION),
587 HCMD_NAME(STORED_BEACON_NTF),
588 };
589
590 /* Please keep this array *SORTED* by hex value.
591 * Access is done through binary search
592 */
593 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = {
594 HCMD_NAME(NVM_ACCESS_COMPLETE),
595 HCMD_NAME(NVM_GET_INFO),
596 HCMD_NAME(TAS_CONFIG),
597 };
598
599 static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
600 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
601 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
602 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
603 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
604 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
605 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
606 [SCAN_GROUP] = HCMD_ARR(iwl_mvm_scan_names),
607 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names),
608 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
609 [REGULATORY_AND_NVM_GROUP] =
610 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names),
611 };
612
613 /* this forward declaration can avoid to export the function */
614 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
615
iwl_mvm_min_backoff(struct iwl_mvm * mvm)616 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm)
617 {
618 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs;
619 u64 dflt_pwr_limit;
620
621 if (!backoff)
622 return 0;
623
624 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev);
625
626 while (backoff->pwr) {
627 if (dflt_pwr_limit >= backoff->pwr)
628 return backoff->backoff;
629
630 backoff++;
631 }
632
633 return 0;
634 }
635
iwl_mvm_tx_unblock_dwork(struct work_struct * work)636 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
637 {
638 struct iwl_mvm *mvm =
639 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work);
640 struct ieee80211_vif *tx_blocked_vif;
641 struct iwl_mvm_vif *mvmvif;
642
643 mutex_lock(&mvm->mutex);
644
645 tx_blocked_vif =
646 rcu_dereference_protected(mvm->csa_tx_blocked_vif,
647 lockdep_is_held(&mvm->mutex));
648
649 if (!tx_blocked_vif)
650 goto unlock;
651
652 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
653 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
654 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
655 unlock:
656 mutex_unlock(&mvm->mutex);
657 }
658
iwl_mvm_fwrt_dump_start(void * ctx)659 static void iwl_mvm_fwrt_dump_start(void *ctx)
660 {
661 struct iwl_mvm *mvm = ctx;
662
663 mutex_lock(&mvm->mutex);
664 }
665
iwl_mvm_fwrt_dump_end(void * ctx)666 static void iwl_mvm_fwrt_dump_end(void *ctx)
667 {
668 struct iwl_mvm *mvm = ctx;
669
670 mutex_unlock(&mvm->mutex);
671 }
672
iwl_mvm_fwrt_fw_running(void * ctx)673 static bool iwl_mvm_fwrt_fw_running(void *ctx)
674 {
675 return iwl_mvm_firmware_running(ctx);
676 }
677
iwl_mvm_fwrt_send_hcmd(void * ctx,struct iwl_host_cmd * host_cmd)678 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd)
679 {
680 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx;
681 int ret;
682
683 mutex_lock(&mvm->mutex);
684 ret = iwl_mvm_send_cmd(mvm, host_cmd);
685 mutex_unlock(&mvm->mutex);
686
687 return ret;
688 }
689
iwl_mvm_d3_debug_enable(void * ctx)690 static bool iwl_mvm_d3_debug_enable(void *ctx)
691 {
692 return IWL_MVM_D3_DEBUG;
693 }
694
695 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = {
696 .dump_start = iwl_mvm_fwrt_dump_start,
697 .dump_end = iwl_mvm_fwrt_dump_end,
698 .fw_running = iwl_mvm_fwrt_fw_running,
699 .send_hcmd = iwl_mvm_fwrt_send_hcmd,
700 .d3_debug_enable = iwl_mvm_d3_debug_enable,
701 };
702
iwl_mvm_start_get_nvm(struct iwl_mvm * mvm)703 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm)
704 {
705 struct iwl_trans *trans = mvm->trans;
706 int ret;
707
708 if (trans->csme_own) {
709 if (WARN(!mvm->mei_registered,
710 "csme is owner, but we aren't registered to iwlmei\n"))
711 goto get_nvm_from_fw;
712
713 mvm->mei_nvm_data = iwl_mei_get_nvm();
714 if (mvm->mei_nvm_data) {
715 /*
716 * mvm->mei_nvm_data is set and because of that,
717 * we'll load the NVM from the FW when we'll get
718 * ownership.
719 */
720 mvm->nvm_data =
721 iwl_parse_mei_nvm_data(trans, trans->cfg,
722 mvm->mei_nvm_data, mvm->fw);
723 return 0;
724 }
725
726 IWL_ERR(mvm,
727 "Got a NULL NVM from CSME, trying to get it from the device\n");
728 }
729
730 get_nvm_from_fw:
731 rtnl_lock();
732 wiphy_lock(mvm->hw->wiphy);
733 mutex_lock(&mvm->mutex);
734
735 ret = iwl_trans_start_hw(mvm->trans);
736 if (ret) {
737 mutex_unlock(&mvm->mutex);
738 wiphy_unlock(mvm->hw->wiphy);
739 rtnl_unlock();
740 return ret;
741 }
742
743 ret = iwl_run_init_mvm_ucode(mvm);
744 if (ret && ret != -ERFKILL)
745 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER);
746 if (!ret && iwl_mvm_is_lar_supported(mvm)) {
747 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
748 ret = iwl_mvm_init_mcc(mvm);
749 }
750
751 if (!iwlmvm_mod_params.init_dbg || !ret)
752 iwl_mvm_stop_device(mvm);
753
754 mutex_unlock(&mvm->mutex);
755 wiphy_unlock(mvm->hw->wiphy);
756 rtnl_unlock();
757
758 if (ret)
759 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
760
761 return ret;
762 }
763
iwl_mvm_start_post_nvm(struct iwl_mvm * mvm)764 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm)
765 {
766 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
767 int ret;
768
769 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
770
771 ret = iwl_mvm_mac_setup_register(mvm);
772 if (ret)
773 return ret;
774
775 mvm->hw_registered = true;
776
777 iwl_mvm_dbgfs_register(mvm);
778
779 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
780 mvm->mei_rfkill_blocked,
781 RFKILL_HARD_BLOCK_NOT_OWNER);
782
783 iwl_mvm_mei_set_sw_rfkill_state(mvm);
784
785 return 0;
786 }
787
788 struct iwl_mvm_frob_txf_data {
789 u8 *buf;
790 size_t buflen;
791 };
792
iwl_mvm_frob_txf_key_iter(struct ieee80211_hw * hw,struct ieee80211_vif * vif,struct ieee80211_sta * sta,struct ieee80211_key_conf * key,void * data)793 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw,
794 struct ieee80211_vif *vif,
795 struct ieee80211_sta *sta,
796 struct ieee80211_key_conf *key,
797 void *data)
798 {
799 struct iwl_mvm_frob_txf_data *txf = data;
800 u8 keylen, match, matchend;
801 u8 *keydata;
802 size_t i;
803
804 switch (key->cipher) {
805 case WLAN_CIPHER_SUITE_CCMP:
806 keydata = key->key;
807 keylen = key->keylen;
808 break;
809 case WLAN_CIPHER_SUITE_WEP40:
810 case WLAN_CIPHER_SUITE_WEP104:
811 case WLAN_CIPHER_SUITE_TKIP:
812 /*
813 * WEP has short keys which might show up in the payload,
814 * and then you can deduce the key, so in this case just
815 * remove all FIFO data.
816 * For TKIP, we don't know the phase 2 keys here, so same.
817 */
818 memset(txf->buf, 0xBB, txf->buflen);
819 return;
820 default:
821 return;
822 }
823
824 /* scan for key material and clear it out */
825 match = 0;
826 for (i = 0; i < txf->buflen; i++) {
827 if (txf->buf[i] != keydata[match]) {
828 match = 0;
829 continue;
830 }
831 match++;
832 if (match == keylen) {
833 memset(txf->buf + i - keylen, 0xAA, keylen);
834 match = 0;
835 }
836 }
837
838 /* we're dealing with a FIFO, so check wrapped around data */
839 matchend = match;
840 for (i = 0; match && i < keylen - match; i++) {
841 if (txf->buf[i] != keydata[match])
842 break;
843 match++;
844 if (match == keylen) {
845 memset(txf->buf, 0xAA, i + 1);
846 memset(txf->buf + txf->buflen - matchend, 0xAA,
847 matchend);
848 break;
849 }
850 }
851 }
852
iwl_mvm_frob_txf(void * ctx,void * buf,size_t buflen)853 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen)
854 {
855 struct iwl_mvm_frob_txf_data txf = {
856 .buf = buf,
857 .buflen = buflen,
858 };
859 struct iwl_mvm *mvm = ctx;
860
861 /* embedded key material exists only on old API */
862 if (iwl_mvm_has_new_tx_api(mvm))
863 return;
864
865 rcu_read_lock();
866 ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf);
867 rcu_read_unlock();
868 }
869
iwl_mvm_frob_hcmd(void * ctx,void * hcmd,size_t len)870 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len)
871 {
872 /* we only use wide headers for commands */
873 struct iwl_cmd_header_wide *hdr = hcmd;
874 unsigned int frob_start = sizeof(*hdr), frob_end = 0;
875
876 if (len < sizeof(hdr))
877 return;
878
879 /* all the commands we care about are in LONG_GROUP */
880 if (hdr->group_id != LONG_GROUP)
881 return;
882
883 switch (hdr->cmd) {
884 case WEP_KEY:
885 case WOWLAN_TKIP_PARAM:
886 case WOWLAN_KEK_KCK_MATERIAL:
887 case ADD_STA_KEY:
888 /*
889 * blank out everything here, easier than dealing
890 * with the various versions of the command
891 */
892 frob_end = INT_MAX;
893 break;
894 case MGMT_MCAST_KEY:
895 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk);
896 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) !=
897 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk));
898
899 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk);
900 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) <
901 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk));
902 break;
903 }
904
905 if (frob_start >= frob_end)
906 return;
907
908 if (frob_end > len)
909 frob_end = len;
910
911 memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start);
912 }
913
iwl_mvm_frob_mem(void * ctx,u32 mem_addr,void * mem,size_t buflen)914 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen)
915 {
916 const struct iwl_dump_exclude *excl;
917 struct iwl_mvm *mvm = ctx;
918 int i;
919
920 switch (mvm->fwrt.cur_fw_img) {
921 case IWL_UCODE_INIT:
922 default:
923 /* not relevant */
924 return;
925 case IWL_UCODE_REGULAR:
926 case IWL_UCODE_REGULAR_USNIFFER:
927 excl = mvm->fw->dump_excl;
928 break;
929 case IWL_UCODE_WOWLAN:
930 excl = mvm->fw->dump_excl_wowlan;
931 break;
932 }
933
934 BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) !=
935 sizeof(mvm->fw->dump_excl_wowlan));
936
937 for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) {
938 u32 start, end;
939
940 if (!excl[i].addr || !excl[i].size)
941 continue;
942
943 start = excl[i].addr;
944 end = start + excl[i].size;
945
946 if (end <= mem_addr || start >= mem_addr + buflen)
947 continue;
948
949 if (start < mem_addr)
950 start = mem_addr;
951
952 if (end > mem_addr + buflen)
953 end = mem_addr + buflen;
954
955 memset((u8 *)mem + start - mem_addr, 0xAA, end - start);
956 }
957 }
958
959 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = {
960 .frob_txf = iwl_mvm_frob_txf,
961 .frob_hcmd = iwl_mvm_frob_hcmd,
962 .frob_mem = iwl_mvm_frob_mem,
963 };
964
iwl_mvm_me_conn_status(void * priv,const struct iwl_mei_conn_info * conn_info)965 static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info)
966 {
967 struct iwl_mvm *mvm = priv;
968 struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info;
969
970 /*
971 * This is protected by the guarantee that this function will not be
972 * called twice on two different threads
973 */
974 prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true);
975
976 curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL);
977 if (!curr_conn_info)
978 return;
979
980 curr_conn_info->conn_info = *conn_info;
981
982 rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info);
983
984 if (prev_conn_info)
985 kfree_rcu(prev_conn_info, rcu_head);
986 }
987
iwl_mvm_mei_rfkill(void * priv,bool blocked)988 static void iwl_mvm_mei_rfkill(void *priv, bool blocked)
989 {
990 struct iwl_mvm *mvm = priv;
991
992 mvm->mei_rfkill_blocked = blocked;
993 if (!mvm->hw_registered)
994 return;
995
996 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
997 mvm->mei_rfkill_blocked,
998 RFKILL_HARD_BLOCK_NOT_OWNER);
999 }
1000
iwl_mvm_mei_roaming_forbidden(void * priv,bool forbidden)1001 static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden)
1002 {
1003 struct iwl_mvm *mvm = priv;
1004
1005 if (!mvm->hw_registered || !mvm->csme_vif)
1006 return;
1007
1008 iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden);
1009 }
1010
iwl_mvm_sap_connected_wk(struct work_struct * wk)1011 static void iwl_mvm_sap_connected_wk(struct work_struct *wk)
1012 {
1013 struct iwl_mvm *mvm =
1014 container_of(wk, struct iwl_mvm, sap_connected_wk);
1015 int ret;
1016
1017 ret = iwl_mvm_start_get_nvm(mvm);
1018 if (ret)
1019 goto out_free;
1020
1021 ret = iwl_mvm_start_post_nvm(mvm);
1022 if (ret)
1023 goto out_free;
1024
1025 return;
1026
1027 out_free:
1028 IWL_ERR(mvm, "Couldn't get started...\n");
1029 iwl_mei_start_unregister();
1030 iwl_mei_unregister_complete();
1031 iwl_fw_flush_dumps(&mvm->fwrt);
1032 iwl_mvm_thermal_exit(mvm);
1033 iwl_fw_runtime_free(&mvm->fwrt);
1034 iwl_phy_db_free(mvm->phy_db);
1035 kfree(mvm->scan_cmd);
1036 iwl_trans_op_mode_leave(mvm->trans);
1037 kfree(mvm->nvm_data);
1038 kfree(mvm->mei_nvm_data);
1039
1040 ieee80211_free_hw(mvm->hw);
1041 }
1042
iwl_mvm_mei_sap_connected(void * priv)1043 static void iwl_mvm_mei_sap_connected(void *priv)
1044 {
1045 struct iwl_mvm *mvm = priv;
1046
1047 if (!mvm->hw_registered)
1048 schedule_work(&mvm->sap_connected_wk);
1049 }
1050
iwl_mvm_mei_nic_stolen(void * priv)1051 static void iwl_mvm_mei_nic_stolen(void *priv)
1052 {
1053 struct iwl_mvm *mvm = priv;
1054
1055 rtnl_lock();
1056 cfg80211_shutdown_all_interfaces(mvm->hw->wiphy);
1057 rtnl_unlock();
1058 }
1059
1060 static const struct iwl_mei_ops mei_ops = {
1061 .me_conn_status = iwl_mvm_me_conn_status,
1062 .rfkill = iwl_mvm_mei_rfkill,
1063 .roaming_forbidden = iwl_mvm_mei_roaming_forbidden,
1064 .sap_connected = iwl_mvm_mei_sap_connected,
1065 .nic_stolen = iwl_mvm_mei_nic_stolen,
1066 };
1067
1068 static struct iwl_op_mode *
iwl_op_mode_mvm_start(struct iwl_trans * trans,const struct iwl_cfg * cfg,const struct iwl_fw * fw,struct dentry * dbgfs_dir)1069 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
1070 const struct iwl_fw *fw, struct dentry *dbgfs_dir)
1071 {
1072 struct ieee80211_hw *hw;
1073 struct iwl_op_mode *op_mode;
1074 struct iwl_mvm *mvm;
1075 struct iwl_trans_config trans_cfg = {};
1076 static const u8 no_reclaim_cmds[] = {
1077 TX_CMD,
1078 };
1079 size_t scan_size;
1080 u32 min_backoff;
1081 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
1082
1083 /*
1084 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station
1085 * index all over the driver - check that its value corresponds to the
1086 * array size.
1087 */
1088 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) !=
1089 IWL_MVM_STATION_COUNT_MAX);
1090
1091 /********************************
1092 * 1. Allocating and configuring HW data
1093 ********************************/
1094 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
1095 sizeof(struct iwl_mvm),
1096 &iwl_mvm_hw_ops);
1097 if (!hw)
1098 return NULL;
1099
1100 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
1101
1102 if (cfg->max_tx_agg_size)
1103 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
1104 else
1105 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
1106
1107 op_mode = hw->priv;
1108
1109 mvm = IWL_OP_MODE_GET_MVM(op_mode);
1110 mvm->dev = trans->dev;
1111 mvm->trans = trans;
1112 mvm->cfg = cfg;
1113 mvm->fw = fw;
1114 mvm->hw = hw;
1115
1116 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm,
1117 &iwl_mvm_sanitize_ops, mvm, dbgfs_dir);
1118
1119 iwl_mvm_get_acpi_tables(mvm);
1120 iwl_uefi_get_sgom_table(trans, &mvm->fwrt);
1121
1122 mvm->init_status = 0;
1123
1124 if (iwl_mvm_has_new_rx_api(mvm)) {
1125 op_mode->ops = &iwl_mvm_ops_mq;
1126 trans->rx_mpdu_cmd_hdr_size =
1127 (trans->trans_cfg->device_family >=
1128 IWL_DEVICE_FAMILY_AX210) ?
1129 sizeof(struct iwl_rx_mpdu_desc) :
1130 IWL_RX_DESC_SIZE_V1;
1131 } else {
1132 op_mode->ops = &iwl_mvm_ops;
1133 trans->rx_mpdu_cmd_hdr_size =
1134 sizeof(struct iwl_rx_mpdu_res_start);
1135
1136 if (WARN_ON(trans->num_rx_queues > 1))
1137 goto out_free;
1138 }
1139
1140 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0;
1141
1142 if (iwl_mvm_has_new_tx_api(mvm)) {
1143 /*
1144 * If we have the new TX/queue allocation API initialize them
1145 * all to invalid numbers. We'll rewrite the ones that we need
1146 * later, but that doesn't happen for all of them all of the
1147 * time (e.g. P2P Device is optional), and if a dynamic queue
1148 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then
1149 * iwl_mvm_is_static_queue() erroneously returns true, and we
1150 * might have things getting stuck.
1151 */
1152 mvm->aux_queue = IWL_MVM_INVALID_QUEUE;
1153 mvm->snif_queue = IWL_MVM_INVALID_QUEUE;
1154 mvm->probe_queue = IWL_MVM_INVALID_QUEUE;
1155 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE;
1156 } else {
1157 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
1158 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE;
1159 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
1160 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE;
1161 }
1162
1163 mvm->sf_state = SF_UNINIT;
1164 if (iwl_mvm_has_unified_ucode(mvm))
1165 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR);
1166 else
1167 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT);
1168 mvm->drop_bcn_ap_mode = true;
1169
1170 mutex_init(&mvm->mutex);
1171 spin_lock_init(&mvm->async_handlers_lock);
1172 INIT_LIST_HEAD(&mvm->time_event_list);
1173 INIT_LIST_HEAD(&mvm->aux_roc_te_list);
1174 INIT_LIST_HEAD(&mvm->async_handlers_list);
1175 spin_lock_init(&mvm->time_event_lock);
1176 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list);
1177 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list);
1178 INIT_LIST_HEAD(&mvm->resp_pasn_list);
1179
1180 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
1181 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
1182 INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk);
1183 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
1184 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
1185 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
1186 INIT_LIST_HEAD(&mvm->add_stream_txqs);
1187
1188 init_waitqueue_head(&mvm->rx_sync_waitq);
1189
1190 mvm->queue_sync_state = 0;
1191
1192 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
1193
1194 spin_lock_init(&mvm->tcm.lock);
1195 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work);
1196 mvm->tcm.ts = jiffies;
1197 mvm->tcm.ll_ts = jiffies;
1198 mvm->tcm.uapsd_nonagg_ts = jiffies;
1199
1200 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
1201
1202 mvm->cmd_ver.range_resp =
1203 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP,
1204 TOF_RANGE_RESPONSE_NOTIF, 5);
1205 /* we only support up to version 9 */
1206 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9))
1207 goto out_free;
1208
1209 /*
1210 * Populate the state variables that the transport layer needs
1211 * to know about.
1212 */
1213 trans_cfg.op_mode = op_mode;
1214 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
1215 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
1216
1217 switch (iwlwifi_mod_params.amsdu_size) {
1218 case IWL_AMSDU_DEF:
1219 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1220 break;
1221 case IWL_AMSDU_4K:
1222 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1223 break;
1224 case IWL_AMSDU_8K:
1225 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
1226 break;
1227 case IWL_AMSDU_12K:
1228 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
1229 break;
1230 default:
1231 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
1232 iwlwifi_mod_params.amsdu_size);
1233 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1234 }
1235
1236 trans->wide_cmd_header = true;
1237 trans_cfg.bc_table_dword =
1238 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210;
1239
1240 trans_cfg.command_groups = iwl_mvm_groups;
1241 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
1242
1243 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
1244 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
1245 trans_cfg.scd_set_active = true;
1246
1247 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
1248 driver_data[2]);
1249
1250 /* Set a short watchdog for the command queue */
1251 trans_cfg.cmd_q_wdg_timeout =
1252 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
1253
1254 snprintf(mvm->hw->wiphy->fw_version,
1255 sizeof(mvm->hw->wiphy->fw_version),
1256 "%s", fw->fw_version);
1257
1258 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa,
1259 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE);
1260
1261 trans_cfg.queue_alloc_cmd_ver =
1262 iwl_fw_lookup_cmd_ver(mvm->fw,
1263 WIDE_ID(DATA_PATH_GROUP,
1264 SCD_QUEUE_CONFIG_CMD),
1265 0);
1266 mvm->sta_remove_requires_queue_remove =
1267 trans_cfg.queue_alloc_cmd_ver > 0;
1268
1269 /* Configure transport layer */
1270 iwl_trans_configure(mvm->trans, &trans_cfg);
1271
1272 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
1273 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv;
1274 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg;
1275 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv,
1276 sizeof(trans->dbg.conf_tlv));
1277 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv;
1278
1279 trans->iml = mvm->fw->iml;
1280 trans->iml_len = mvm->fw->iml_len;
1281
1282 /* set up notification wait support */
1283 iwl_notification_wait_init(&mvm->notif_wait);
1284
1285 /* Init phy db */
1286 mvm->phy_db = iwl_phy_db_init(trans);
1287 if (!mvm->phy_db) {
1288 IWL_ERR(mvm, "Cannot init phy_db\n");
1289 goto out_free;
1290 }
1291
1292 IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
1293 mvm->trans->name, mvm->trans->hw_rev);
1294
1295 if (iwlwifi_mod_params.nvm_file)
1296 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
1297 else
1298 IWL_DEBUG_EEPROM(mvm->trans->dev,
1299 "working without external nvm file\n");
1300
1301 scan_size = iwl_mvm_scan_size(mvm);
1302
1303 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
1304 if (!mvm->scan_cmd)
1305 goto out_free;
1306 mvm->scan_cmd_size = scan_size;
1307
1308 /* invalidate ids to prevent accidental removal of sta_id 0 */
1309 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA;
1310 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA;
1311
1312 /* Set EBS as successful as long as not stated otherwise by the FW. */
1313 mvm->last_ebs_successful = true;
1314
1315 min_backoff = iwl_mvm_min_backoff(mvm);
1316 iwl_mvm_thermal_initialize(mvm, min_backoff);
1317
1318 if (!iwl_mvm_has_new_rx_stats_api(mvm))
1319 memset(&mvm->rx_stats_v3, 0,
1320 sizeof(struct mvm_statistics_rx_v3));
1321 else
1322 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
1323
1324 mvm->debugfs_dir = dbgfs_dir;
1325
1326 mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops);
1327
1328 if (iwl_mvm_start_get_nvm(mvm)) {
1329 /*
1330 * Getting NVM failed while CSME is the owner, but we are
1331 * registered to MEI, we'll get the NVM later when it'll be
1332 * possible to get it from CSME.
1333 */
1334 if (trans->csme_own && mvm->mei_registered)
1335 return op_mode;
1336
1337 goto out_thermal_exit;
1338 }
1339
1340
1341 if (iwl_mvm_start_post_nvm(mvm))
1342 goto out_thermal_exit;
1343
1344 return op_mode;
1345
1346 out_thermal_exit:
1347 iwl_mvm_thermal_exit(mvm);
1348 if (mvm->mei_registered) {
1349 iwl_mei_start_unregister();
1350 iwl_mei_unregister_complete();
1351 }
1352 out_free:
1353 iwl_fw_flush_dumps(&mvm->fwrt);
1354 iwl_fw_runtime_free(&mvm->fwrt);
1355
1356 if (iwlmvm_mod_params.init_dbg)
1357 return op_mode;
1358 iwl_phy_db_free(mvm->phy_db);
1359 kfree(mvm->scan_cmd);
1360 iwl_trans_op_mode_leave(trans);
1361
1362 ieee80211_free_hw(mvm->hw);
1363 return NULL;
1364 }
1365
iwl_mvm_stop_device(struct iwl_mvm * mvm)1366 void iwl_mvm_stop_device(struct iwl_mvm *mvm)
1367 {
1368 lockdep_assert_held(&mvm->mutex);
1369
1370 iwl_fw_cancel_timestamp(&mvm->fwrt);
1371
1372 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1373
1374 iwl_fw_dbg_stop_sync(&mvm->fwrt);
1375 iwl_trans_stop_device(mvm->trans);
1376 iwl_free_fw_paging(&mvm->fwrt);
1377 iwl_fw_dump_conf_clear(&mvm->fwrt);
1378 iwl_mvm_mei_device_state(mvm, false);
1379 }
1380
iwl_op_mode_mvm_stop(struct iwl_op_mode * op_mode)1381 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
1382 {
1383 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1384 int i;
1385
1386 if (mvm->mei_registered) {
1387 rtnl_lock();
1388 iwl_mei_set_netdev(NULL);
1389 rtnl_unlock();
1390 iwl_mei_start_unregister();
1391 }
1392
1393 /*
1394 * After we unregister from mei, the worker can't be scheduled
1395 * anymore.
1396 */
1397 cancel_work_sync(&mvm->sap_connected_wk);
1398
1399 iwl_mvm_leds_exit(mvm);
1400
1401 iwl_mvm_thermal_exit(mvm);
1402
1403 /*
1404 * If we couldn't get ownership on the device and we couldn't
1405 * get the NVM from CSME, we haven't registered to mac80211.
1406 * In that case, we didn't fail op_mode_start, because we are
1407 * waiting for CSME to allow us to get the NVM to register to
1408 * mac80211. If that didn't happen, we haven't registered to
1409 * mac80211, hence the if below.
1410 */
1411 if (mvm->hw_registered)
1412 ieee80211_unregister_hw(mvm->hw);
1413
1414 kfree(mvm->scan_cmd);
1415 kfree(mvm->mcast_filter_cmd);
1416 mvm->mcast_filter_cmd = NULL;
1417
1418 kfree(mvm->error_recovery_buf);
1419 mvm->error_recovery_buf = NULL;
1420
1421 iwl_trans_op_mode_leave(mvm->trans);
1422
1423 iwl_phy_db_free(mvm->phy_db);
1424 mvm->phy_db = NULL;
1425
1426 kfree(mvm->nvm_data);
1427 kfree(mvm->mei_nvm_data);
1428 kfree(rcu_access_pointer(mvm->csme_conn_info));
1429 kfree(mvm->temp_nvm_data);
1430 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
1431 kfree(mvm->nvm_sections[i].data);
1432
1433 cancel_delayed_work_sync(&mvm->tcm.work);
1434
1435 iwl_fw_runtime_free(&mvm->fwrt);
1436 mutex_destroy(&mvm->mutex);
1437
1438 if (mvm->mei_registered)
1439 iwl_mei_unregister_complete();
1440
1441 ieee80211_free_hw(mvm->hw);
1442 }
1443
1444 struct iwl_async_handler_entry {
1445 struct list_head list;
1446 struct iwl_rx_cmd_buffer rxb;
1447 enum iwl_rx_handler_context context;
1448 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1449 };
1450
iwl_mvm_async_handlers_purge(struct iwl_mvm * mvm)1451 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
1452 {
1453 struct iwl_async_handler_entry *entry, *tmp;
1454
1455 spin_lock_bh(&mvm->async_handlers_lock);
1456 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
1457 iwl_free_rxb(&entry->rxb);
1458 list_del(&entry->list);
1459 kfree(entry);
1460 }
1461 spin_unlock_bh(&mvm->async_handlers_lock);
1462 }
1463
iwl_mvm_async_handlers_wk(struct work_struct * wk)1464 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
1465 {
1466 struct iwl_mvm *mvm =
1467 container_of(wk, struct iwl_mvm, async_handlers_wk);
1468 struct iwl_async_handler_entry *entry, *tmp;
1469 LIST_HEAD(local_list);
1470
1471 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
1472
1473 /*
1474 * Sync with Rx path with a lock. Remove all the entries from this list,
1475 * add them to a local one (lock free), and then handle them.
1476 */
1477 spin_lock_bh(&mvm->async_handlers_lock);
1478 list_splice_init(&mvm->async_handlers_list, &local_list);
1479 spin_unlock_bh(&mvm->async_handlers_lock);
1480
1481 list_for_each_entry_safe(entry, tmp, &local_list, list) {
1482 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1483 mutex_lock(&mvm->mutex);
1484 entry->fn(mvm, &entry->rxb);
1485 iwl_free_rxb(&entry->rxb);
1486 list_del(&entry->list);
1487 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1488 mutex_unlock(&mvm->mutex);
1489 kfree(entry);
1490 }
1491 }
1492
iwl_mvm_rx_check_trigger(struct iwl_mvm * mvm,struct iwl_rx_packet * pkt)1493 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
1494 struct iwl_rx_packet *pkt)
1495 {
1496 struct iwl_fw_dbg_trigger_tlv *trig;
1497 struct iwl_fw_dbg_trigger_cmd *cmds_trig;
1498 int i;
1499
1500 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL,
1501 FW_DBG_TRIGGER_FW_NOTIF);
1502 if (!trig)
1503 return;
1504
1505 cmds_trig = (void *)trig->data;
1506
1507 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
1508 /* don't collect on CMD 0 */
1509 if (!cmds_trig->cmds[i].cmd_id)
1510 break;
1511
1512 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
1513 cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
1514 continue;
1515
1516 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
1517 "CMD 0x%02x.%02x received",
1518 pkt->hdr.group_id, pkt->hdr.cmd);
1519 break;
1520 }
1521 }
1522
iwl_mvm_rx_common(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb,struct iwl_rx_packet * pkt)1523 static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
1524 struct iwl_rx_cmd_buffer *rxb,
1525 struct iwl_rx_packet *pkt)
1526 {
1527 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt);
1528 int i;
1529 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt };
1530
1531 iwl_dbg_tlv_time_point(&mvm->fwrt,
1532 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data);
1533 iwl_mvm_rx_check_trigger(mvm, pkt);
1534
1535 /*
1536 * Do the notification wait before RX handlers so
1537 * even if the RX handler consumes the RXB we have
1538 * access to it in the notification wait entry.
1539 */
1540 iwl_notification_wait_notify(&mvm->notif_wait, pkt);
1541
1542 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
1543 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
1544 struct iwl_async_handler_entry *entry;
1545
1546 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
1547 continue;
1548
1549 if (unlikely(pkt_len < rx_h->min_size))
1550 return;
1551
1552 if (rx_h->context == RX_HANDLER_SYNC) {
1553 rx_h->fn(mvm, rxb);
1554 return;
1555 }
1556
1557 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
1558 /* we can't do much... */
1559 if (!entry)
1560 return;
1561
1562 entry->rxb._page = rxb_steal_page(rxb);
1563 entry->rxb._offset = rxb->_offset;
1564 entry->rxb._rx_page_order = rxb->_rx_page_order;
1565 entry->fn = rx_h->fn;
1566 entry->context = rx_h->context;
1567 spin_lock(&mvm->async_handlers_lock);
1568 list_add_tail(&entry->list, &mvm->async_handlers_list);
1569 spin_unlock(&mvm->async_handlers_lock);
1570 schedule_work(&mvm->async_handlers_wk);
1571 break;
1572 }
1573 }
1574
iwl_mvm_rx(struct iwl_op_mode * op_mode,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb)1575 static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
1576 struct napi_struct *napi,
1577 struct iwl_rx_cmd_buffer *rxb)
1578 {
1579 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1580 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1581 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1582
1583 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1584 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
1585 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
1586 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
1587 else
1588 iwl_mvm_rx_common(mvm, rxb, pkt);
1589 }
1590
iwl_mvm_rx_mq(struct iwl_op_mode * op_mode,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb)1591 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
1592 struct napi_struct *napi,
1593 struct iwl_rx_cmd_buffer *rxb)
1594 {
1595 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1596 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1597 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1598
1599 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1600 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
1601 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1602 RX_QUEUES_NOTIFICATION)))
1603 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0);
1604 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
1605 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
1606 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE))
1607 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0);
1608 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF))
1609 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0);
1610 else
1611 iwl_mvm_rx_common(mvm, rxb, pkt);
1612 }
1613
iwl_mvm_async_cb(struct iwl_op_mode * op_mode,const struct iwl_device_cmd * cmd)1614 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
1615 const struct iwl_device_cmd *cmd)
1616 {
1617 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1618
1619 /*
1620 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
1621 * commands that need to block the Tx queues.
1622 */
1623 iwl_trans_block_txq_ptrs(mvm->trans, false);
1624 }
1625
iwl_mvm_is_static_queue(struct iwl_mvm * mvm,int queue)1626 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue)
1627 {
1628 return queue == mvm->aux_queue || queue == mvm->probe_queue ||
1629 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue;
1630 }
1631
iwl_mvm_queue_state_change(struct iwl_op_mode * op_mode,int hw_queue,bool start)1632 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode,
1633 int hw_queue, bool start)
1634 {
1635 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1636 struct ieee80211_sta *sta;
1637 struct ieee80211_txq *txq;
1638 struct iwl_mvm_txq *mvmtxq;
1639 int i;
1640 unsigned long tid_bitmap;
1641 struct iwl_mvm_sta *mvmsta;
1642 u8 sta_id;
1643
1644 sta_id = iwl_mvm_has_new_tx_api(mvm) ?
1645 mvm->tvqm_info[hw_queue].sta_id :
1646 mvm->queue_info[hw_queue].ra_sta_id;
1647
1648 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations))
1649 return;
1650
1651 rcu_read_lock();
1652
1653 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1654 if (IS_ERR_OR_NULL(sta))
1655 goto out;
1656 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1657
1658 if (iwl_mvm_is_static_queue(mvm, hw_queue)) {
1659 if (!start)
1660 ieee80211_stop_queues(mvm->hw);
1661 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1662 ieee80211_wake_queues(mvm->hw);
1663
1664 goto out;
1665 }
1666
1667 if (iwl_mvm_has_new_tx_api(mvm)) {
1668 int tid = mvm->tvqm_info[hw_queue].txq_tid;
1669
1670 tid_bitmap = BIT(tid);
1671 } else {
1672 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap;
1673 }
1674
1675 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
1676 int tid = i;
1677
1678 if (tid == IWL_MAX_TID_COUNT)
1679 tid = IEEE80211_NUM_TIDS;
1680
1681 txq = sta->txq[tid];
1682 mvmtxq = iwl_mvm_txq_from_mac80211(txq);
1683 mvmtxq->stopped = !start;
1684
1685 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1686 iwl_mvm_mac_itxq_xmit(mvm->hw, txq);
1687 }
1688
1689 out:
1690 rcu_read_unlock();
1691 }
1692
iwl_mvm_stop_sw_queue(struct iwl_op_mode * op_mode,int hw_queue)1693 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1694 {
1695 iwl_mvm_queue_state_change(op_mode, hw_queue, false);
1696 }
1697
iwl_mvm_wake_sw_queue(struct iwl_op_mode * op_mode,int hw_queue)1698 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1699 {
1700 iwl_mvm_queue_state_change(op_mode, hw_queue, true);
1701 }
1702
iwl_mvm_set_rfkill_state(struct iwl_mvm * mvm)1703 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm)
1704 {
1705 bool state = iwl_mvm_is_radio_killed(mvm);
1706
1707 if (state)
1708 wake_up(&mvm->rx_sync_waitq);
1709
1710 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
1711 }
1712
iwl_mvm_set_hw_ctkill_state(struct iwl_mvm * mvm,bool state)1713 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1714 {
1715 if (state)
1716 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1717 else
1718 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1719
1720 iwl_mvm_set_rfkill_state(mvm);
1721 }
1722
iwl_mvm_get_csme_conn_info(struct iwl_mvm * mvm)1723 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm)
1724 {
1725 return rcu_dereference_protected(mvm->csme_conn_info,
1726 lockdep_is_held(&mvm->mutex));
1727 }
1728
iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode * op_mode,bool state)1729 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
1730 {
1731 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1732 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done);
1733 bool unified = iwl_mvm_has_unified_ucode(mvm);
1734
1735 if (state)
1736 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1737 else
1738 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1739
1740 iwl_mvm_set_rfkill_state(mvm);
1741
1742 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */
1743 if (rfkill_safe_init_done)
1744 iwl_abort_notification_waits(&mvm->notif_wait);
1745
1746 /*
1747 * Don't ask the transport to stop the firmware. We'll do it
1748 * after cfg80211 takes us down.
1749 */
1750 if (unified)
1751 return false;
1752
1753 /*
1754 * Stop the device if we run OPERATIONAL firmware or if we are in the
1755 * middle of the calibrations.
1756 */
1757 return state && rfkill_safe_init_done;
1758 }
1759
iwl_mvm_free_skb(struct iwl_op_mode * op_mode,struct sk_buff * skb)1760 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1761 {
1762 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1763 struct ieee80211_tx_info *info;
1764
1765 info = IEEE80211_SKB_CB(skb);
1766 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1767 ieee80211_free_txskb(mvm->hw, skb);
1768 }
1769
1770 struct iwl_mvm_reprobe {
1771 struct device *dev;
1772 struct work_struct work;
1773 };
1774
iwl_mvm_reprobe_wk(struct work_struct * wk)1775 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1776 {
1777 struct iwl_mvm_reprobe *reprobe;
1778
1779 reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1780 if (device_reprobe(reprobe->dev))
1781 dev_err(reprobe->dev, "reprobe failed!\n");
1782 put_device(reprobe->dev);
1783 kfree(reprobe);
1784 module_put(THIS_MODULE);
1785 }
1786
iwl_mvm_nic_restart(struct iwl_mvm * mvm,bool fw_error)1787 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1788 {
1789 iwl_abort_notification_waits(&mvm->notif_wait);
1790 iwl_dbg_tlv_del_timers(mvm->trans);
1791
1792 /*
1793 * This is a bit racy, but worst case we tell mac80211 about
1794 * a stopped/aborted scan when that was already done which
1795 * is not a problem. It is necessary to abort any os scan
1796 * here because mac80211 requires having the scan cleared
1797 * before restarting.
1798 * We'll reset the scan_status to NONE in restart cleanup in
1799 * the next start() call from mac80211. If restart isn't called
1800 * (no fw restart) scan status will stay busy.
1801 */
1802 iwl_mvm_report_scan_aborted(mvm);
1803
1804 /*
1805 * If we're restarting already, don't cycle restarts.
1806 * If INIT fw asserted, it will likely fail again.
1807 * If WoWLAN fw asserted, don't restart either, mac80211
1808 * can't recover this since we're already half suspended.
1809 */
1810 if (!mvm->fw_restart && fw_error) {
1811 iwl_fw_error_collect(&mvm->fwrt, false);
1812 } else if (test_bit(IWL_MVM_STATUS_STARTING,
1813 &mvm->status)) {
1814 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n");
1815 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1816 struct iwl_mvm_reprobe *reprobe;
1817
1818 IWL_ERR(mvm,
1819 "Firmware error during reconfiguration - reprobe!\n");
1820
1821 /*
1822 * get a module reference to avoid doing this while unloading
1823 * anyway and to avoid scheduling a work with code that's
1824 * being removed.
1825 */
1826 if (!try_module_get(THIS_MODULE)) {
1827 IWL_ERR(mvm, "Module is being unloaded - abort\n");
1828 return;
1829 }
1830
1831 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1832 if (!reprobe) {
1833 module_put(THIS_MODULE);
1834 return;
1835 }
1836 reprobe->dev = get_device(mvm->trans->dev);
1837 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1838 schedule_work(&reprobe->work);
1839 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1840 &mvm->status)) {
1841 IWL_ERR(mvm, "HW restart already requested, but not started\n");
1842 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR &&
1843 mvm->hw_registered &&
1844 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {
1845 /* This should be first thing before trying to collect any
1846 * data to avoid endless loops if any HW error happens while
1847 * collecting debug data.
1848 */
1849 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1850
1851 if (mvm->fw->ucode_capa.error_log_size) {
1852 u32 src_size = mvm->fw->ucode_capa.error_log_size;
1853 u32 src_addr = mvm->fw->ucode_capa.error_log_addr;
1854 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC);
1855
1856 if (recover_buf) {
1857 mvm->error_recovery_buf = recover_buf;
1858 iwl_trans_read_mem_bytes(mvm->trans,
1859 src_addr,
1860 recover_buf,
1861 src_size);
1862 }
1863 }
1864
1865 iwl_fw_error_collect(&mvm->fwrt, false);
1866
1867 if (fw_error && mvm->fw_restart > 0) {
1868 mvm->fw_restart--;
1869 ieee80211_restart_hw(mvm->hw);
1870 } else if (mvm->fwrt.trans->dbg.restart_required) {
1871 IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n");
1872 mvm->fwrt.trans->dbg.restart_required = FALSE;
1873 ieee80211_restart_hw(mvm->hw);
1874 } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) {
1875 ieee80211_restart_hw(mvm->hw);
1876 }
1877 }
1878 }
1879
iwl_mvm_nic_error(struct iwl_op_mode * op_mode,bool sync)1880 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync)
1881 {
1882 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1883
1884 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) &&
1885 !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE,
1886 &mvm->status))
1887 iwl_mvm_dump_nic_error_log(mvm);
1888
1889 if (sync) {
1890 iwl_fw_error_collect(&mvm->fwrt, true);
1891 /*
1892 * Currently, the only case for sync=true is during
1893 * shutdown, so just stop in this case. If/when that
1894 * changes, we need to be a bit smarter here.
1895 */
1896 return;
1897 }
1898
1899 /*
1900 * If the firmware crashes while we're already considering it
1901 * to be dead then don't ask for a restart, that cannot do
1902 * anything useful anyway.
1903 */
1904 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status))
1905 return;
1906
1907 iwl_mvm_nic_restart(mvm, false);
1908 }
1909
iwl_mvm_cmd_queue_full(struct iwl_op_mode * op_mode)1910 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1911 {
1912 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1913
1914 WARN_ON(1);
1915 iwl_mvm_nic_restart(mvm, true);
1916 }
1917
iwl_op_mode_mvm_time_point(struct iwl_op_mode * op_mode,enum iwl_fw_ini_time_point tp_id,union iwl_dbg_tlv_tp_data * tp_data)1918 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode,
1919 enum iwl_fw_ini_time_point tp_id,
1920 union iwl_dbg_tlv_tp_data *tp_data)
1921 {
1922 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1923
1924 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data);
1925 }
1926
1927 #define IWL_MVM_COMMON_OPS \
1928 /* these could be differentiated */ \
1929 .async_cb = iwl_mvm_async_cb, \
1930 .queue_full = iwl_mvm_stop_sw_queue, \
1931 .queue_not_full = iwl_mvm_wake_sw_queue, \
1932 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \
1933 .free_skb = iwl_mvm_free_skb, \
1934 .nic_error = iwl_mvm_nic_error, \
1935 .cmd_queue_full = iwl_mvm_cmd_queue_full, \
1936 .nic_config = iwl_mvm_nic_config, \
1937 /* as we only register one, these MUST be common! */ \
1938 .start = iwl_op_mode_mvm_start, \
1939 .stop = iwl_op_mode_mvm_stop, \
1940 .time_point = iwl_op_mode_mvm_time_point
1941
1942 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1943 IWL_MVM_COMMON_OPS,
1944 .rx = iwl_mvm_rx,
1945 };
1946
iwl_mvm_rx_mq_rss(struct iwl_op_mode * op_mode,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb,unsigned int queue)1947 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1948 struct napi_struct *napi,
1949 struct iwl_rx_cmd_buffer *rxb,
1950 unsigned int queue)
1951 {
1952 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1953 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1954 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1955
1956 if (unlikely(queue >= mvm->trans->num_rx_queues))
1957 return;
1958
1959 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
1960 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
1961 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1962 RX_QUEUES_NOTIFICATION)))
1963 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue);
1964 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1965 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
1966 }
1967
1968 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1969 IWL_MVM_COMMON_OPS,
1970 .rx = iwl_mvm_rx_mq,
1971 .rx_rss = iwl_mvm_rx_mq_rss,
1972 };
1973