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 #if defined(__FreeBSD__)
8 #define LINUXKPI_PARAM_PREFIX iwlwifi_mvm_
9 #endif
10 #include <linux/module.h>
11 #if defined(__linux__)
12 #include <linux/rtnetlink.h>
13 #endif
14 #include <linux/vmalloc.h>
15 #include <net/mac80211.h>
16
17 #include "fw/notif-wait.h"
18 #include "iwl-trans.h"
19 #include "iwl-op-mode.h"
20 #include "fw/img.h"
21 #include "iwl-debug.h"
22 #include "iwl-drv.h"
23 #include "iwl-modparams.h"
24 #include "mvm.h"
25 #include "iwl-phy-db.h"
26 #include "iwl-eeprom-parse.h"
27 #include "iwl-csr.h"
28 #include "iwl-io.h"
29 #include "iwl-prph.h"
30 #include "rs.h"
31 #include "fw/api/scan.h"
32 #include "fw/api/rfi.h"
33 #include "time-event.h"
34 #include "fw-api.h"
35 #include "fw/acpi.h"
36 #include "fw/uefi.h"
37
38 #if defined(__linux__)
39 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
40 MODULE_LICENSE("GPL");
41 #elif defined(__FreeBSD__)
42 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN/AC/AX based driver for FreeBSD"
43 MODULE_LICENSE("BSD");
44 #endif
45 MODULE_DESCRIPTION(DRV_DESCRIPTION);
46 MODULE_IMPORT_NS(IWLWIFI);
47
48 static const struct iwl_op_mode_ops iwl_mvm_ops;
49 static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
50
51 struct iwl_mvm_mod_params iwlmvm_mod_params = {
52 #if defined(__FreeBSD__)
53 .power_scheme = IWL_POWER_SCHEME_CAM, /* disable default PS */
54 #else
55 .power_scheme = IWL_POWER_SCHEME_BPS,
56 #endif
57 /* rest of fields are 0 by default */
58 };
59
60 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444);
61 MODULE_PARM_DESC(init_dbg,
62 "set to true to debug an ASSERT in INIT fw (default: false");
63 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444);
64 MODULE_PARM_DESC(power_scheme,
65 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
66
67 /*
68 * module init and exit functions
69 */
iwl_mvm_init(void)70 static int __init iwl_mvm_init(void)
71 {
72 int ret;
73
74 ret = iwl_mvm_rate_control_register();
75 if (ret) {
76 pr_err("Unable to register rate control algorithm: %d\n", ret);
77 return ret;
78 }
79
80 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
81 if (ret)
82 pr_err("Unable to register MVM op_mode: %d\n", ret);
83
84 return ret;
85 }
86 #if defined(__linux__)
87 module_init(iwl_mvm_init);
88 #elif defined(__FreeBSD__)
89 module_init_order(iwl_mvm_init, SI_ORDER_SECOND);
90 #endif
91
iwl_mvm_exit(void)92 static void __exit iwl_mvm_exit(void)
93 {
94 iwl_opmode_deregister("iwlmvm");
95 iwl_mvm_rate_control_unregister();
96 }
97 module_exit(iwl_mvm_exit);
98
iwl_mvm_nic_config(struct iwl_op_mode * op_mode)99 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
100 {
101 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
102 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
103 u32 reg_val;
104 u32 phy_config = iwl_mvm_get_phy_config(mvm);
105
106 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
107 FW_PHY_CFG_RADIO_TYPE_POS;
108 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
109 FW_PHY_CFG_RADIO_STEP_POS;
110 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
111 FW_PHY_CFG_RADIO_DASH_POS;
112
113 /* SKU control */
114 reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev);
115
116 /* radio configuration */
117 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
118 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
119 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
120
121 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
122 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
123
124 /*
125 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC
126 * sampling, and shouldn't be set to any non-zero value.
127 * The same is supposed to be true of the other HW, but unsetting
128 * them (such as the 7260) causes automatic tests to fail on seemingly
129 * unrelated errors. Need to further investigate this, but for now
130 * we'll separate cases.
131 */
132 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_8000)
133 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
134
135 if (iwl_fw_dbg_is_d3_debug_enabled(&mvm->fwrt))
136 reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG;
137
138 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
139 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH |
140 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
141 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
142 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
143 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
144 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI |
145 CSR_HW_IF_CONFIG_REG_D3_DEBUG,
146 reg_val);
147
148 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
149 radio_cfg_step, radio_cfg_dash);
150
151 /*
152 * W/A : NIC is stuck in a reset state after Early PCIe power off
153 * (PCIe power is lost before PERST# is asserted), causing ME FW
154 * to lose ownership and not being able to obtain it back.
155 */
156 if (!mvm->trans->cfg->apmg_not_supported)
157 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
158 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
159 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
160 }
161
iwl_mvm_rx_monitor_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)162 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm,
163 struct iwl_rx_cmd_buffer *rxb)
164 {
165 struct iwl_rx_packet *pkt = rxb_addr(rxb);
166 struct iwl_datapath_monitor_notif *notif = (void *)pkt->data;
167 struct ieee80211_supported_band *sband;
168 const struct ieee80211_sta_he_cap *he_cap;
169 struct ieee80211_vif *vif;
170
171 if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA))
172 return;
173
174 vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id);
175 if (!vif || vif->type != NL80211_IFTYPE_STATION)
176 return;
177
178 if (!vif->bss_conf.chandef.chan ||
179 vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ ||
180 vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40)
181 return;
182
183 if (!vif->bss_conf.assoc)
184 return;
185
186 /* this shouldn't happen *again*, ignore it */
187 if (mvm->cca_40mhz_workaround)
188 return;
189
190 /*
191 * We'll decrement this on disconnect - so set to 2 since we'll
192 * still have to disconnect from the current AP first.
193 */
194 mvm->cca_40mhz_workaround = 2;
195
196 /*
197 * This capability manipulation isn't really ideal, but it's the
198 * easiest choice - otherwise we'd have to do some major changes
199 * in mac80211 to support this, which isn't worth it. This does
200 * mean that userspace may have outdated information, but that's
201 * actually not an issue at all.
202 */
203 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
204
205 WARN_ON(!sband->ht_cap.ht_supported);
206 WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40));
207 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
208
209 he_cap = ieee80211_get_he_iftype_cap(sband,
210 ieee80211_vif_type_p2p(vif));
211
212 if (he_cap) {
213 /* we know that ours is writable */
214 struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap;
215
216 WARN_ON(!he->has_he);
217 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] &
218 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G));
219 he->he_cap_elem.phy_cap_info[0] &=
220 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
221 }
222
223 ieee80211_disconnect(vif, true);
224 }
225
iwl_mvm_apply_fw_smps_request(struct ieee80211_vif * vif)226 void iwl_mvm_apply_fw_smps_request(struct ieee80211_vif *vif)
227 {
228 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
229 struct iwl_mvm *mvm = mvmvif->mvm;
230 enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC;
231
232 if (mvm->fw_static_smps_request &&
233 vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_160 &&
234 vif->bss_conf.he_support)
235 mode = IEEE80211_SMPS_STATIC;
236
237 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode);
238 }
239
iwl_mvm_intf_dual_chain_req(void * data,u8 * mac,struct ieee80211_vif * vif)240 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac,
241 struct ieee80211_vif *vif)
242 {
243 iwl_mvm_apply_fw_smps_request(vif);
244 }
245
iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)246 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm,
247 struct iwl_rx_cmd_buffer *rxb)
248 {
249 struct iwl_rx_packet *pkt = rxb_addr(rxb);
250 struct iwl_thermal_dual_chain_request *req = (void *)pkt->data;
251
252 /*
253 * We could pass it to the iterator data, but also need to remember
254 * it for new interfaces that are added while in this state.
255 */
256 mvm->fw_static_smps_request =
257 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE);
258 ieee80211_iterate_interfaces(mvm->hw,
259 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER,
260 iwl_mvm_intf_dual_chain_req, NULL);
261 }
262
263 /**
264 * enum iwl_rx_handler_context context for Rx handler
265 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path
266 * which can't acquire mvm->mutex.
267 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex
268 * (and only in this case!), it should be set as ASYNC. In that case,
269 * it will be called from a worker with mvm->mutex held.
270 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the
271 * mutex itself, it will be called from a worker without mvm->mutex held.
272 */
273 enum iwl_rx_handler_context {
274 RX_HANDLER_SYNC,
275 RX_HANDLER_ASYNC_LOCKED,
276 RX_HANDLER_ASYNC_UNLOCKED,
277 };
278
279 /**
280 * struct iwl_rx_handlers handler for FW notification
281 * @cmd_id: command id
282 * @min_size: minimum size to expect for the notification
283 * @context: see &iwl_rx_handler_context
284 * @fn: the function is called when notification is received
285 */
286 struct iwl_rx_handlers {
287 u16 cmd_id, min_size;
288 enum iwl_rx_handler_context context;
289 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
290 };
291
292 #define RX_HANDLER_NO_SIZE(_cmd_id, _fn, _context) \
293 { .cmd_id = _cmd_id, .fn = _fn, .context = _context, }
294 #define RX_HANDLER_GRP_NO_SIZE(_grp, _cmd, _fn, _context) \
295 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context, }
296 #define RX_HANDLER(_cmd_id, _fn, _context, _struct) \
297 { .cmd_id = _cmd_id, .fn = _fn, \
298 .context = _context, .min_size = sizeof(_struct), }
299 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context, _struct) \
300 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, \
301 .context = _context, .min_size = sizeof(_struct), }
302
303 /*
304 * Handlers for fw notifications
305 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
306 * This list should be in order of frequency for performance purposes.
307 *
308 * The handler can be one from three contexts, see &iwl_rx_handler_context
309 */
310 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
311 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC,
312 struct iwl_mvm_tx_resp),
313 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC,
314 struct iwl_mvm_ba_notif),
315
316 RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF,
317 iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC,
318 struct iwl_tlc_update_notif),
319
320 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif,
321 RX_HANDLER_ASYNC_LOCKED, struct iwl_bt_coex_profile_notif),
322 RX_HANDLER_NO_SIZE(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif,
323 RX_HANDLER_ASYNC_LOCKED),
324 RX_HANDLER_NO_SIZE(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics,
325 RX_HANDLER_ASYNC_LOCKED),
326
327 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID,
328 iwl_mvm_window_status_notif, RX_HANDLER_SYNC,
329 struct iwl_ba_window_status_notif),
330
331 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif,
332 RX_HANDLER_SYNC, struct iwl_time_event_notif),
333 RX_HANDLER_GRP(MAC_CONF_GROUP, SESSION_PROTECTION_NOTIF,
334 iwl_mvm_rx_session_protect_notif, RX_HANDLER_SYNC,
335 struct iwl_mvm_session_prot_notif),
336 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc,
337 RX_HANDLER_ASYNC_LOCKED, struct iwl_mcc_chub_notif),
338
339 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC,
340 struct iwl_mvm_eosp_notification),
341
342 RX_HANDLER(SCAN_ITERATION_COMPLETE,
343 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC,
344 struct iwl_lmac_scan_complete_notif),
345 RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
346 iwl_mvm_rx_lmac_scan_complete_notif,
347 RX_HANDLER_ASYNC_LOCKED, struct iwl_periodic_scan_complete),
348 RX_HANDLER_NO_SIZE(MATCH_FOUND_NOTIFICATION,
349 iwl_mvm_rx_scan_match_found,
350 RX_HANDLER_SYNC),
351 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
352 RX_HANDLER_ASYNC_LOCKED, struct iwl_umac_scan_complete),
353 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
354 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC,
355 struct iwl_umac_scan_iter_complete_notif),
356
357 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
358 RX_HANDLER_SYNC, struct iwl_missed_beacons_notif),
359
360 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC,
361 struct iwl_error_resp),
362 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
363 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC,
364 struct iwl_uapsd_misbehaving_ap_notif),
365 RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif,
366 RX_HANDLER_ASYNC_LOCKED),
367 RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
368 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED),
369 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION,
370 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC,
371 struct ct_kill_notif),
372
373 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
374 RX_HANDLER_ASYNC_LOCKED,
375 struct iwl_tdls_channel_switch_notif),
376 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif,
377 RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1),
378 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS,
379 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED,
380 struct iwl_ftm_responder_stats),
381
382 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF,
383 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED),
384 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF,
385 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED),
386
387 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF,
388 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC,
389 struct iwl_mfu_assert_dump_notif),
390 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF,
391 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC,
392 struct iwl_stored_beacon_notif_v2),
393 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF,
394 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC,
395 struct iwl_mu_group_mgmt_notif),
396 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF,
397 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC,
398 struct iwl_mvm_pm_state_notification),
399 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF,
400 iwl_mvm_probe_resp_data_notif,
401 RX_HANDLER_ASYNC_LOCKED,
402 struct iwl_probe_resp_data_notif),
403 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_START_NOTIF,
404 iwl_mvm_channel_switch_start_notif,
405 RX_HANDLER_SYNC, struct iwl_channel_switch_start_notif),
406 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_ERROR_NOTIF,
407 iwl_mvm_channel_switch_error_notif,
408 RX_HANDLER_ASYNC_UNLOCKED,
409 struct iwl_channel_switch_error_notif),
410 RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF,
411 iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED,
412 struct iwl_datapath_monitor_notif),
413
414 RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST,
415 iwl_mvm_rx_thermal_dual_chain_req,
416 RX_HANDLER_ASYNC_LOCKED,
417 struct iwl_thermal_dual_chain_request),
418
419 RX_HANDLER_GRP(SYSTEM_GROUP, RFI_DEACTIVATE_NOTIF,
420 iwl_rfi_deactivate_notif_handler, RX_HANDLER_ASYNC_UNLOCKED,
421 struct iwl_rfi_deactivate_notif),
422 };
423 #undef RX_HANDLER
424 #undef RX_HANDLER_GRP
425
426 /* Please keep this array *SORTED* by hex value.
427 * Access is done through binary search
428 */
429 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
430 HCMD_NAME(UCODE_ALIVE_NTFY),
431 HCMD_NAME(REPLY_ERROR),
432 HCMD_NAME(ECHO_CMD),
433 HCMD_NAME(INIT_COMPLETE_NOTIF),
434 HCMD_NAME(PHY_CONTEXT_CMD),
435 HCMD_NAME(DBG_CFG),
436 HCMD_NAME(SCAN_CFG_CMD),
437 HCMD_NAME(SCAN_REQ_UMAC),
438 HCMD_NAME(SCAN_ABORT_UMAC),
439 HCMD_NAME(SCAN_COMPLETE_UMAC),
440 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID),
441 HCMD_NAME(ADD_STA_KEY),
442 HCMD_NAME(ADD_STA),
443 HCMD_NAME(REMOVE_STA),
444 HCMD_NAME(FW_GET_ITEM_CMD),
445 HCMD_NAME(TX_CMD),
446 HCMD_NAME(SCD_QUEUE_CFG),
447 HCMD_NAME(TXPATH_FLUSH),
448 HCMD_NAME(MGMT_MCAST_KEY),
449 HCMD_NAME(WEP_KEY),
450 HCMD_NAME(SHARED_MEM_CFG),
451 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
452 HCMD_NAME(MAC_CONTEXT_CMD),
453 HCMD_NAME(TIME_EVENT_CMD),
454 HCMD_NAME(TIME_EVENT_NOTIFICATION),
455 HCMD_NAME(BINDING_CONTEXT_CMD),
456 HCMD_NAME(TIME_QUOTA_CMD),
457 HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
458 HCMD_NAME(LEDS_CMD),
459 HCMD_NAME(LQ_CMD),
460 HCMD_NAME(FW_PAGING_BLOCK_CMD),
461 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
462 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
463 HCMD_NAME(HOT_SPOT_CMD),
464 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
465 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
466 HCMD_NAME(BT_COEX_CI),
467 HCMD_NAME(PHY_CONFIGURATION_CMD),
468 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
469 HCMD_NAME(PHY_DB_CMD),
470 HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
471 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
472 HCMD_NAME(POWER_TABLE_CMD),
473 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
474 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
475 HCMD_NAME(NVM_ACCESS_CMD),
476 HCMD_NAME(BEACON_NOTIFICATION),
477 HCMD_NAME(BEACON_TEMPLATE_CMD),
478 HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
479 HCMD_NAME(BT_CONFIG),
480 HCMD_NAME(STATISTICS_CMD),
481 HCMD_NAME(STATISTICS_NOTIFICATION),
482 HCMD_NAME(EOSP_NOTIFICATION),
483 HCMD_NAME(REDUCE_TX_POWER_CMD),
484 HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
485 HCMD_NAME(TDLS_CONFIG_CMD),
486 HCMD_NAME(MAC_PM_POWER_TABLE),
487 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
488 HCMD_NAME(MFUART_LOAD_NOTIFICATION),
489 HCMD_NAME(RSS_CONFIG_CMD),
490 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
491 HCMD_NAME(REPLY_RX_PHY_CMD),
492 HCMD_NAME(REPLY_RX_MPDU_CMD),
493 HCMD_NAME(BAR_FRAME_RELEASE),
494 HCMD_NAME(FRAME_RELEASE),
495 HCMD_NAME(BA_NOTIF),
496 HCMD_NAME(MCC_UPDATE_CMD),
497 HCMD_NAME(MCC_CHUB_UPDATE_CMD),
498 HCMD_NAME(MARKER_CMD),
499 HCMD_NAME(BT_PROFILE_NOTIFICATION),
500 HCMD_NAME(BCAST_FILTER_CMD),
501 HCMD_NAME(MCAST_FILTER_CMD),
502 HCMD_NAME(REPLY_SF_CFG_CMD),
503 HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
504 HCMD_NAME(D3_CONFIG_CMD),
505 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
506 HCMD_NAME(OFFLOADS_QUERY_CMD),
507 HCMD_NAME(MATCH_FOUND_NOTIFICATION),
508 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
509 HCMD_NAME(WOWLAN_PATTERNS),
510 HCMD_NAME(WOWLAN_CONFIGURATION),
511 HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
512 HCMD_NAME(WOWLAN_TKIP_PARAM),
513 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
514 HCMD_NAME(WOWLAN_GET_STATUSES),
515 HCMD_NAME(SCAN_ITERATION_COMPLETE),
516 HCMD_NAME(D0I3_END_CMD),
517 HCMD_NAME(LTR_CONFIG),
518 HCMD_NAME(LDBG_CONFIG_CMD),
519 };
520
521 /* Please keep this array *SORTED* by hex value.
522 * Access is done through binary search
523 */
524 static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
525 HCMD_NAME(SHARED_MEM_CFG_CMD),
526 HCMD_NAME(INIT_EXTENDED_CFG_CMD),
527 HCMD_NAME(FW_ERROR_RECOVERY_CMD),
528 HCMD_NAME(RFI_CONFIG_CMD),
529 HCMD_NAME(RFI_GET_FREQ_TABLE_CMD),
530 HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD),
531 HCMD_NAME(RFI_DEACTIVATE_NOTIF),
532 };
533
534 /* Please keep this array *SORTED* by hex value.
535 * Access is done through binary search
536 */
537 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
538 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD),
539 HCMD_NAME(SESSION_PROTECTION_CMD),
540 HCMD_NAME(SESSION_PROTECTION_NOTIF),
541 HCMD_NAME(CHANNEL_SWITCH_START_NOTIF),
542 };
543
544 /* Please keep this array *SORTED* by hex value.
545 * Access is done through binary search
546 */
547 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
548 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
549 HCMD_NAME(CTDP_CONFIG_CMD),
550 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
551 HCMD_NAME(PER_CHAIN_LIMIT_OFFSET_CMD),
552 HCMD_NAME(CT_KILL_NOTIFICATION),
553 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
554 };
555
556 /* Please keep this array *SORTED* by hex value.
557 * Access is done through binary search
558 */
559 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
560 HCMD_NAME(DQA_ENABLE_CMD),
561 HCMD_NAME(UPDATE_MU_GROUPS_CMD),
562 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
563 HCMD_NAME(STA_HE_CTXT_CMD),
564 HCMD_NAME(RLC_CONFIG_CMD),
565 HCMD_NAME(RFH_QUEUE_CONFIG_CMD),
566 HCMD_NAME(TLC_MNG_CONFIG_CMD),
567 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD),
568 HCMD_NAME(SCD_QUEUE_CONFIG_CMD),
569 HCMD_NAME(MONITOR_NOTIF),
570 HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST),
571 HCMD_NAME(STA_PM_NOTIF),
572 HCMD_NAME(MU_GROUP_MGMT_NOTIF),
573 HCMD_NAME(RX_QUEUES_NOTIFICATION),
574 };
575
576 /* Please keep this array *SORTED* by hex value.
577 * Access is done through binary search
578 */
579 static const struct iwl_hcmd_names iwl_mvm_location_names[] = {
580 HCMD_NAME(TOF_RANGE_REQ_CMD),
581 HCMD_NAME(TOF_CONFIG_CMD),
582 HCMD_NAME(TOF_RANGE_ABORT_CMD),
583 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD),
584 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD),
585 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD),
586 HCMD_NAME(TOF_LC_NOTIF),
587 HCMD_NAME(TOF_RESPONDER_STATS),
588 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF),
589 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF),
590 };
591
592 /* Please keep this array *SORTED* by hex value.
593 * Access is done through binary search
594 */
595 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
596 HCMD_NAME(STORED_BEACON_NTF),
597 };
598
599 /* Please keep this array *SORTED* by hex value.
600 * Access is done through binary search
601 */
602 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = {
603 HCMD_NAME(NVM_ACCESS_COMPLETE),
604 HCMD_NAME(NVM_GET_INFO),
605 HCMD_NAME(TAS_CONFIG),
606 };
607
608 static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
609 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
610 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
611 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
612 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
613 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
614 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
615 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names),
616 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
617 [REGULATORY_AND_NVM_GROUP] =
618 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names),
619 };
620
621 /* this forward declaration can avoid to export the function */
622 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
623
iwl_mvm_min_backoff(struct iwl_mvm * mvm)624 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm)
625 {
626 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs;
627 u64 dflt_pwr_limit;
628
629 if (!backoff)
630 return 0;
631
632 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev);
633
634 while (backoff->pwr) {
635 if (dflt_pwr_limit >= backoff->pwr)
636 return backoff->backoff;
637
638 backoff++;
639 }
640
641 return 0;
642 }
643
iwl_mvm_tx_unblock_dwork(struct work_struct * work)644 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
645 {
646 struct iwl_mvm *mvm =
647 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work);
648 struct ieee80211_vif *tx_blocked_vif;
649 struct iwl_mvm_vif *mvmvif;
650
651 mutex_lock(&mvm->mutex);
652
653 tx_blocked_vif =
654 rcu_dereference_protected(mvm->csa_tx_blocked_vif,
655 lockdep_is_held(&mvm->mutex));
656
657 if (!tx_blocked_vif)
658 goto unlock;
659
660 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
661 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
662 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
663 unlock:
664 mutex_unlock(&mvm->mutex);
665 }
666
iwl_mvm_fwrt_dump_start(void * ctx)667 static void iwl_mvm_fwrt_dump_start(void *ctx)
668 {
669 struct iwl_mvm *mvm = ctx;
670
671 mutex_lock(&mvm->mutex);
672 }
673
iwl_mvm_fwrt_dump_end(void * ctx)674 static void iwl_mvm_fwrt_dump_end(void *ctx)
675 {
676 struct iwl_mvm *mvm = ctx;
677
678 mutex_unlock(&mvm->mutex);
679 }
680
iwl_mvm_fwrt_fw_running(void * ctx)681 static bool iwl_mvm_fwrt_fw_running(void *ctx)
682 {
683 return iwl_mvm_firmware_running(ctx);
684 }
685
iwl_mvm_fwrt_send_hcmd(void * ctx,struct iwl_host_cmd * host_cmd)686 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd)
687 {
688 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx;
689 int ret;
690
691 mutex_lock(&mvm->mutex);
692 ret = iwl_mvm_send_cmd(mvm, host_cmd);
693 mutex_unlock(&mvm->mutex);
694
695 return ret;
696 }
697
iwl_mvm_d3_debug_enable(void * ctx)698 static bool iwl_mvm_d3_debug_enable(void *ctx)
699 {
700 return IWL_MVM_D3_DEBUG;
701 }
702
703 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = {
704 .dump_start = iwl_mvm_fwrt_dump_start,
705 .dump_end = iwl_mvm_fwrt_dump_end,
706 .fw_running = iwl_mvm_fwrt_fw_running,
707 .send_hcmd = iwl_mvm_fwrt_send_hcmd,
708 .d3_debug_enable = iwl_mvm_d3_debug_enable,
709 };
710
iwl_mvm_start_get_nvm(struct iwl_mvm * mvm)711 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm)
712 {
713 struct iwl_trans *trans = mvm->trans;
714 int ret;
715
716 if (trans->csme_own) {
717 if (WARN(!mvm->mei_registered,
718 "csme is owner, but we aren't registered to iwlmei\n"))
719 goto get_nvm_from_fw;
720
721 mvm->mei_nvm_data = iwl_mei_get_nvm();
722 if (mvm->mei_nvm_data) {
723 /*
724 * mvm->mei_nvm_data is set and because of that,
725 * we'll load the NVM from the FW when we'll get
726 * ownership.
727 */
728 mvm->nvm_data =
729 iwl_parse_mei_nvm_data(trans, trans->cfg,
730 mvm->mei_nvm_data, mvm->fw);
731 return 0;
732 }
733
734 IWL_ERR(mvm,
735 "Got a NULL NVM from CSME, trying to get it from the device\n");
736 }
737
738 get_nvm_from_fw:
739 rtnl_lock();
740 wiphy_lock(mvm->hw->wiphy);
741 mutex_lock(&mvm->mutex);
742
743 ret = iwl_trans_start_hw(mvm->trans);
744 if (ret) {
745 mutex_unlock(&mvm->mutex);
746 wiphy_unlock(mvm->hw->wiphy);
747 rtnl_unlock();
748 return ret;
749 }
750
751 ret = iwl_run_init_mvm_ucode(mvm);
752 if (ret && ret != -ERFKILL)
753 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER);
754 if (!ret && iwl_mvm_is_lar_supported(mvm)) {
755 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
756 ret = iwl_mvm_init_mcc(mvm);
757 }
758
759 if (!iwlmvm_mod_params.init_dbg || !ret)
760 iwl_mvm_stop_device(mvm);
761
762 mutex_unlock(&mvm->mutex);
763 wiphy_unlock(mvm->hw->wiphy);
764 rtnl_unlock();
765
766 if (ret)
767 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
768
769 return ret;
770 }
771
iwl_mvm_start_post_nvm(struct iwl_mvm * mvm)772 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm)
773 {
774 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
775 int ret;
776
777 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
778
779 ret = iwl_mvm_mac_setup_register(mvm);
780 if (ret)
781 return ret;
782
783 mvm->hw_registered = true;
784
785 iwl_mvm_dbgfs_register(mvm);
786
787 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
788 mvm->mei_rfkill_blocked,
789 RFKILL_HARD_BLOCK_NOT_OWNER);
790
791 iwl_mvm_mei_set_sw_rfkill_state(mvm);
792
793 return 0;
794 }
795
796 struct iwl_mvm_frob_txf_data {
797 u8 *buf;
798 size_t buflen;
799 };
800
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)801 static void iwl_mvm_frob_txf_key_iter(struct ieee80211_hw *hw,
802 struct ieee80211_vif *vif,
803 struct ieee80211_sta *sta,
804 struct ieee80211_key_conf *key,
805 void *data)
806 {
807 struct iwl_mvm_frob_txf_data *txf = data;
808 u8 keylen, match, matchend;
809 u8 *keydata;
810 size_t i;
811
812 switch (key->cipher) {
813 case WLAN_CIPHER_SUITE_CCMP:
814 keydata = key->key;
815 keylen = key->keylen;
816 break;
817 case WLAN_CIPHER_SUITE_WEP40:
818 case WLAN_CIPHER_SUITE_WEP104:
819 case WLAN_CIPHER_SUITE_TKIP:
820 /*
821 * WEP has short keys which might show up in the payload,
822 * and then you can deduce the key, so in this case just
823 * remove all FIFO data.
824 * For TKIP, we don't know the phase 2 keys here, so same.
825 */
826 memset(txf->buf, 0xBB, txf->buflen);
827 return;
828 default:
829 return;
830 }
831
832 /* scan for key material and clear it out */
833 match = 0;
834 for (i = 0; i < txf->buflen; i++) {
835 if (txf->buf[i] != keydata[match]) {
836 match = 0;
837 continue;
838 }
839 match++;
840 if (match == keylen) {
841 memset(txf->buf + i - keylen, 0xAA, keylen);
842 match = 0;
843 }
844 }
845
846 /* we're dealing with a FIFO, so check wrapped around data */
847 matchend = match;
848 for (i = 0; match && i < keylen - match; i++) {
849 if (txf->buf[i] != keydata[match])
850 break;
851 match++;
852 if (match == keylen) {
853 memset(txf->buf, 0xAA, i + 1);
854 memset(txf->buf + txf->buflen - matchend, 0xAA,
855 matchend);
856 break;
857 }
858 }
859 }
860
iwl_mvm_frob_txf(void * ctx,void * buf,size_t buflen)861 static void iwl_mvm_frob_txf(void *ctx, void *buf, size_t buflen)
862 {
863 struct iwl_mvm_frob_txf_data txf = {
864 .buf = buf,
865 .buflen = buflen,
866 };
867 struct iwl_mvm *mvm = ctx;
868
869 /* embedded key material exists only on old API */
870 if (iwl_mvm_has_new_tx_api(mvm))
871 return;
872
873 rcu_read_lock();
874 ieee80211_iter_keys_rcu(mvm->hw, NULL, iwl_mvm_frob_txf_key_iter, &txf);
875 rcu_read_unlock();
876 }
877
iwl_mvm_frob_hcmd(void * ctx,void * hcmd,size_t len)878 static void iwl_mvm_frob_hcmd(void *ctx, void *hcmd, size_t len)
879 {
880 /* we only use wide headers for commands */
881 struct iwl_cmd_header_wide *hdr = hcmd;
882 unsigned int frob_start = sizeof(*hdr), frob_end = 0;
883
884 if (len < sizeof(hdr))
885 return;
886
887 /* all the commands we care about are in LONG_GROUP */
888 if (hdr->group_id != LONG_GROUP)
889 return;
890
891 switch (hdr->cmd) {
892 case WEP_KEY:
893 case WOWLAN_TKIP_PARAM:
894 case WOWLAN_KEK_KCK_MATERIAL:
895 case ADD_STA_KEY:
896 /*
897 * blank out everything here, easier than dealing
898 * with the various versions of the command
899 */
900 frob_end = INT_MAX;
901 break;
902 case MGMT_MCAST_KEY:
903 frob_start = offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk);
904 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) !=
905 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk));
906
907 frob_end = offsetofend(struct iwl_mvm_mgmt_mcast_key_cmd, igtk);
908 BUILD_BUG_ON(offsetof(struct iwl_mvm_mgmt_mcast_key_cmd, igtk) <
909 offsetof(struct iwl_mvm_mgmt_mcast_key_cmd_v1, igtk));
910 break;
911 }
912
913 if (frob_start >= frob_end)
914 return;
915
916 if (frob_end > len)
917 frob_end = len;
918
919 memset((u8 *)hcmd + frob_start, 0xAA, frob_end - frob_start);
920 }
921
iwl_mvm_frob_mem(void * ctx,u32 mem_addr,void * mem,size_t buflen)922 static void iwl_mvm_frob_mem(void *ctx, u32 mem_addr, void *mem, size_t buflen)
923 {
924 const struct iwl_dump_exclude *excl;
925 struct iwl_mvm *mvm = ctx;
926 int i;
927
928 switch (mvm->fwrt.cur_fw_img) {
929 case IWL_UCODE_INIT:
930 default:
931 /* not relevant */
932 return;
933 case IWL_UCODE_REGULAR:
934 case IWL_UCODE_REGULAR_USNIFFER:
935 excl = mvm->fw->dump_excl;
936 break;
937 case IWL_UCODE_WOWLAN:
938 excl = mvm->fw->dump_excl_wowlan;
939 break;
940 }
941
942 BUILD_BUG_ON(sizeof(mvm->fw->dump_excl) !=
943 sizeof(mvm->fw->dump_excl_wowlan));
944
945 for (i = 0; i < ARRAY_SIZE(mvm->fw->dump_excl); i++) {
946 u32 start, end;
947
948 if (!excl[i].addr || !excl[i].size)
949 continue;
950
951 start = excl[i].addr;
952 end = start + excl[i].size;
953
954 if (end <= mem_addr || start >= mem_addr + buflen)
955 continue;
956
957 if (start < mem_addr)
958 start = mem_addr;
959
960 if (end > mem_addr + buflen)
961 end = mem_addr + buflen;
962
963 memset((u8 *)mem + start - mem_addr, 0xAA, end - start);
964 }
965 }
966
967 static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = {
968 .frob_txf = iwl_mvm_frob_txf,
969 .frob_hcmd = iwl_mvm_frob_hcmd,
970 .frob_mem = iwl_mvm_frob_mem,
971 };
972
iwl_mvm_me_conn_status(void * priv,const struct iwl_mei_conn_info * conn_info)973 static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info)
974 {
975 struct iwl_mvm *mvm = priv;
976 struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info;
977
978 /*
979 * This is protected by the guarantee that this function will not be
980 * called twice on two different threads
981 */
982 prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true);
983
984 curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL);
985 if (!curr_conn_info)
986 return;
987
988 curr_conn_info->conn_info = *conn_info;
989
990 rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info);
991
992 if (prev_conn_info)
993 kfree_rcu(prev_conn_info, rcu_head);
994 }
995
iwl_mvm_mei_rfkill(void * priv,bool blocked)996 static void iwl_mvm_mei_rfkill(void *priv, bool blocked)
997 {
998 struct iwl_mvm *mvm = priv;
999
1000 mvm->mei_rfkill_blocked = blocked;
1001 if (!mvm->hw_registered)
1002 return;
1003
1004 wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
1005 mvm->mei_rfkill_blocked,
1006 RFKILL_HARD_BLOCK_NOT_OWNER);
1007 }
1008
iwl_mvm_mei_roaming_forbidden(void * priv,bool forbidden)1009 static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden)
1010 {
1011 struct iwl_mvm *mvm = priv;
1012
1013 if (!mvm->hw_registered || !mvm->csme_vif)
1014 return;
1015
1016 iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden);
1017 }
1018
iwl_mvm_sap_connected_wk(struct work_struct * wk)1019 static void iwl_mvm_sap_connected_wk(struct work_struct *wk)
1020 {
1021 struct iwl_mvm *mvm =
1022 container_of(wk, struct iwl_mvm, sap_connected_wk);
1023 int ret;
1024
1025 ret = iwl_mvm_start_get_nvm(mvm);
1026 if (ret)
1027 goto out_free;
1028
1029 ret = iwl_mvm_start_post_nvm(mvm);
1030 if (ret)
1031 goto out_free;
1032
1033 return;
1034
1035 out_free:
1036 IWL_ERR(mvm, "Couldn't get started...\n");
1037 iwl_mei_start_unregister();
1038 iwl_mei_unregister_complete();
1039 iwl_fw_flush_dumps(&mvm->fwrt);
1040 iwl_mvm_thermal_exit(mvm);
1041 iwl_fw_runtime_free(&mvm->fwrt);
1042 iwl_phy_db_free(mvm->phy_db);
1043 kfree(mvm->scan_cmd);
1044 iwl_trans_op_mode_leave(mvm->trans);
1045 kfree(mvm->nvm_data);
1046 kfree(mvm->mei_nvm_data);
1047
1048 ieee80211_free_hw(mvm->hw);
1049 }
1050
iwl_mvm_mei_sap_connected(void * priv)1051 static void iwl_mvm_mei_sap_connected(void *priv)
1052 {
1053 struct iwl_mvm *mvm = priv;
1054
1055 if (!mvm->hw_registered)
1056 schedule_work(&mvm->sap_connected_wk);
1057 }
1058
iwl_mvm_mei_nic_stolen(void * priv)1059 static void iwl_mvm_mei_nic_stolen(void *priv)
1060 {
1061 struct iwl_mvm *mvm = priv;
1062
1063 rtnl_lock();
1064 cfg80211_shutdown_all_interfaces(mvm->hw->wiphy);
1065 rtnl_unlock();
1066 }
1067
1068 static const struct iwl_mei_ops mei_ops = {
1069 .me_conn_status = iwl_mvm_me_conn_status,
1070 .rfkill = iwl_mvm_mei_rfkill,
1071 .roaming_forbidden = iwl_mvm_mei_roaming_forbidden,
1072 .sap_connected = iwl_mvm_mei_sap_connected,
1073 .nic_stolen = iwl_mvm_mei_nic_stolen,
1074 };
1075
1076 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)1077 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
1078 const struct iwl_fw *fw, struct dentry *dbgfs_dir)
1079 {
1080 struct ieee80211_hw *hw;
1081 struct iwl_op_mode *op_mode;
1082 struct iwl_mvm *mvm;
1083 struct iwl_trans_config trans_cfg = {};
1084 static const u8 no_reclaim_cmds[] = {
1085 TX_CMD,
1086 };
1087 int scan_size;
1088 u32 min_backoff;
1089 struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
1090
1091 /*
1092 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station
1093 * index all over the driver - check that its value corresponds to the
1094 * array size.
1095 */
1096 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) !=
1097 IWL_MVM_STATION_COUNT_MAX);
1098
1099 /********************************
1100 * 1. Allocating and configuring HW data
1101 ********************************/
1102 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
1103 sizeof(struct iwl_mvm),
1104 &iwl_mvm_hw_ops);
1105 if (!hw)
1106 return NULL;
1107
1108 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
1109
1110 if (cfg->max_tx_agg_size)
1111 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
1112 else
1113 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
1114
1115 op_mode = hw->priv;
1116
1117 mvm = IWL_OP_MODE_GET_MVM(op_mode);
1118 mvm->dev = trans->dev;
1119 mvm->trans = trans;
1120 mvm->cfg = cfg;
1121 mvm->fw = fw;
1122 mvm->hw = hw;
1123
1124 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm,
1125 &iwl_mvm_sanitize_ops, mvm, dbgfs_dir);
1126
1127 iwl_mvm_get_acpi_tables(mvm);
1128 iwl_uefi_get_sgom_table(trans, &mvm->fwrt);
1129
1130 mvm->init_status = 0;
1131
1132 if (iwl_mvm_has_new_rx_api(mvm)) {
1133 op_mode->ops = &iwl_mvm_ops_mq;
1134 trans->rx_mpdu_cmd_hdr_size =
1135 (trans->trans_cfg->device_family >=
1136 IWL_DEVICE_FAMILY_AX210) ?
1137 sizeof(struct iwl_rx_mpdu_desc) :
1138 IWL_RX_DESC_SIZE_V1;
1139 } else {
1140 op_mode->ops = &iwl_mvm_ops;
1141 trans->rx_mpdu_cmd_hdr_size =
1142 sizeof(struct iwl_rx_mpdu_res_start);
1143
1144 if (WARN_ON(trans->num_rx_queues > 1))
1145 goto out_free;
1146 }
1147
1148 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0;
1149
1150 if (iwl_mvm_has_new_tx_api(mvm)) {
1151 /*
1152 * If we have the new TX/queue allocation API initialize them
1153 * all to invalid numbers. We'll rewrite the ones that we need
1154 * later, but that doesn't happen for all of them all of the
1155 * time (e.g. P2P Device is optional), and if a dynamic queue
1156 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then
1157 * iwl_mvm_is_static_queue() erroneously returns true, and we
1158 * might have things getting stuck.
1159 */
1160 mvm->aux_queue = IWL_MVM_INVALID_QUEUE;
1161 mvm->snif_queue = IWL_MVM_INVALID_QUEUE;
1162 mvm->probe_queue = IWL_MVM_INVALID_QUEUE;
1163 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE;
1164 } else {
1165 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
1166 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE;
1167 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
1168 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE;
1169 }
1170
1171 mvm->sf_state = SF_UNINIT;
1172 if (iwl_mvm_has_unified_ucode(mvm))
1173 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR);
1174 else
1175 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT);
1176 mvm->drop_bcn_ap_mode = true;
1177
1178 mutex_init(&mvm->mutex);
1179 spin_lock_init(&mvm->async_handlers_lock);
1180 INIT_LIST_HEAD(&mvm->time_event_list);
1181 INIT_LIST_HEAD(&mvm->aux_roc_te_list);
1182 INIT_LIST_HEAD(&mvm->async_handlers_list);
1183 spin_lock_init(&mvm->time_event_lock);
1184 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list);
1185 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list);
1186 INIT_LIST_HEAD(&mvm->resp_pasn_list);
1187
1188 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
1189 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
1190 INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk);
1191 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
1192 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
1193 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
1194 INIT_LIST_HEAD(&mvm->add_stream_txqs);
1195
1196 init_waitqueue_head(&mvm->rx_sync_waitq);
1197
1198 mvm->queue_sync_state = 0;
1199
1200 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
1201
1202 spin_lock_init(&mvm->tcm.lock);
1203 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work);
1204 mvm->tcm.ts = jiffies;
1205 mvm->tcm.ll_ts = jiffies;
1206 mvm->tcm.uapsd_nonagg_ts = jiffies;
1207
1208 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
1209
1210 mvm->cmd_ver.d0i3_resp =
1211 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD,
1212 0);
1213 /* we only support version 1 */
1214 if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1))
1215 goto out_free;
1216
1217 mvm->cmd_ver.range_resp =
1218 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP,
1219 TOF_RANGE_RESPONSE_NOTIF, 5);
1220 /* we only support up to version 9 */
1221 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 9))
1222 goto out_free;
1223
1224 /*
1225 * Populate the state variables that the transport layer needs
1226 * to know about.
1227 */
1228 trans_cfg.op_mode = op_mode;
1229 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
1230 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
1231
1232 switch (iwlwifi_mod_params.amsdu_size) {
1233 case IWL_AMSDU_DEF:
1234 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1235 break;
1236 case IWL_AMSDU_4K:
1237 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1238 break;
1239 case IWL_AMSDU_8K:
1240 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
1241 break;
1242 case IWL_AMSDU_12K:
1243 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
1244 break;
1245 default:
1246 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
1247 iwlwifi_mod_params.amsdu_size);
1248 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
1249 }
1250
1251 trans->wide_cmd_header = true;
1252 trans_cfg.bc_table_dword =
1253 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210;
1254
1255 trans_cfg.command_groups = iwl_mvm_groups;
1256 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
1257
1258 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
1259 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
1260 trans_cfg.scd_set_active = true;
1261
1262 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
1263 driver_data[2]);
1264
1265 /* Set a short watchdog for the command queue */
1266 trans_cfg.cmd_q_wdg_timeout =
1267 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
1268
1269 snprintf(mvm->hw->wiphy->fw_version,
1270 sizeof(mvm->hw->wiphy->fw_version),
1271 "%s", fw->fw_version);
1272
1273 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa,
1274 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE);
1275
1276 trans_cfg.queue_alloc_cmd_ver =
1277 iwl_fw_lookup_cmd_ver(mvm->fw,
1278 WIDE_ID(DATA_PATH_GROUP,
1279 SCD_QUEUE_CONFIG_CMD),
1280 0);
1281 mvm->sta_remove_requires_queue_remove =
1282 trans_cfg.queue_alloc_cmd_ver > 0;
1283
1284 /* Configure transport layer */
1285 iwl_trans_configure(mvm->trans, &trans_cfg);
1286
1287 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
1288 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv;
1289 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg;
1290 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv,
1291 sizeof(trans->dbg.conf_tlv));
1292 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv;
1293
1294 trans->iml = mvm->fw->iml;
1295 trans->iml_len = mvm->fw->iml_len;
1296
1297 /* set up notification wait support */
1298 iwl_notification_wait_init(&mvm->notif_wait);
1299
1300 /* Init phy db */
1301 mvm->phy_db = iwl_phy_db_init(trans);
1302 if (!mvm->phy_db) {
1303 IWL_ERR(mvm, "Cannot init phy_db\n");
1304 goto out_free;
1305 }
1306
1307 IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
1308 mvm->trans->name, mvm->trans->hw_rev);
1309
1310 if (iwlwifi_mod_params.nvm_file)
1311 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
1312 else
1313 IWL_DEBUG_EEPROM(mvm->trans->dev,
1314 "working without external nvm file\n");
1315
1316 scan_size = iwl_mvm_scan_size(mvm);
1317
1318 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
1319 if (!mvm->scan_cmd)
1320 goto out_free;
1321
1322 /* invalidate ids to prevent accidental removal of sta_id 0 */
1323 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA;
1324 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA;
1325
1326 /* Set EBS as successful as long as not stated otherwise by the FW. */
1327 mvm->last_ebs_successful = true;
1328
1329 min_backoff = iwl_mvm_min_backoff(mvm);
1330 iwl_mvm_thermal_initialize(mvm, min_backoff);
1331
1332 if (!iwl_mvm_has_new_rx_stats_api(mvm))
1333 memset(&mvm->rx_stats_v3, 0,
1334 sizeof(struct mvm_statistics_rx_v3));
1335 else
1336 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
1337
1338 mvm->debugfs_dir = dbgfs_dir;
1339
1340 mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops);
1341
1342 if (iwl_mvm_start_get_nvm(mvm)) {
1343 /*
1344 * Getting NVM failed while CSME is the owner, but we are
1345 * registered to MEI, we'll get the NVM later when it'll be
1346 * possible to get it from CSME.
1347 */
1348 if (trans->csme_own && mvm->mei_registered)
1349 return op_mode;
1350
1351 goto out_thermal_exit;
1352 }
1353
1354
1355 if (iwl_mvm_start_post_nvm(mvm))
1356 goto out_thermal_exit;
1357
1358 return op_mode;
1359
1360 out_thermal_exit:
1361 iwl_mvm_thermal_exit(mvm);
1362 if (mvm->mei_registered) {
1363 iwl_mei_start_unregister();
1364 iwl_mei_unregister_complete();
1365 }
1366 out_free:
1367 iwl_fw_flush_dumps(&mvm->fwrt);
1368 iwl_fw_runtime_free(&mvm->fwrt);
1369
1370 if (iwlmvm_mod_params.init_dbg)
1371 return op_mode;
1372 iwl_phy_db_free(mvm->phy_db);
1373 kfree(mvm->scan_cmd);
1374 iwl_trans_op_mode_leave(trans);
1375
1376 ieee80211_free_hw(mvm->hw);
1377 return NULL;
1378 }
1379
iwl_mvm_stop_device(struct iwl_mvm * mvm)1380 void iwl_mvm_stop_device(struct iwl_mvm *mvm)
1381 {
1382 lockdep_assert_held(&mvm->mutex);
1383
1384 iwl_fw_cancel_timestamp(&mvm->fwrt);
1385
1386 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1387
1388 iwl_fw_dbg_stop_sync(&mvm->fwrt);
1389 iwl_trans_stop_device(mvm->trans);
1390 iwl_free_fw_paging(&mvm->fwrt);
1391 iwl_fw_dump_conf_clear(&mvm->fwrt);
1392 iwl_mvm_mei_device_down(mvm);
1393 }
1394
iwl_op_mode_mvm_stop(struct iwl_op_mode * op_mode)1395 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
1396 {
1397 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1398 int i;
1399
1400 if (mvm->mei_registered) {
1401 rtnl_lock();
1402 iwl_mei_set_netdev(NULL);
1403 rtnl_unlock();
1404 iwl_mei_start_unregister();
1405 }
1406
1407 /*
1408 * After we unregister from mei, the worker can't be scheduled
1409 * anymore.
1410 */
1411 cancel_work_sync(&mvm->sap_connected_wk);
1412
1413 iwl_mvm_leds_exit(mvm);
1414
1415 iwl_mvm_thermal_exit(mvm);
1416
1417 /*
1418 * If we couldn't get ownership on the device and we couldn't
1419 * get the NVM from CSME, we haven't registered to mac80211.
1420 * In that case, we didn't fail op_mode_start, because we are
1421 * waiting for CSME to allow us to get the NVM to register to
1422 * mac80211. If that didn't happen, we haven't registered to
1423 * mac80211, hence the if below.
1424 */
1425 if (mvm->hw_registered)
1426 ieee80211_unregister_hw(mvm->hw);
1427
1428 kfree(mvm->scan_cmd);
1429 kfree(mvm->mcast_filter_cmd);
1430 mvm->mcast_filter_cmd = NULL;
1431
1432 kfree(mvm->error_recovery_buf);
1433 mvm->error_recovery_buf = NULL;
1434
1435 iwl_trans_op_mode_leave(mvm->trans);
1436
1437 iwl_phy_db_free(mvm->phy_db);
1438 mvm->phy_db = NULL;
1439
1440 kfree(mvm->nvm_data);
1441 kfree(mvm->mei_nvm_data);
1442 kfree(rcu_access_pointer(mvm->csme_conn_info));
1443 kfree(mvm->temp_nvm_data);
1444 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
1445 kfree(mvm->nvm_sections[i].data);
1446
1447 cancel_delayed_work_sync(&mvm->tcm.work);
1448
1449 iwl_fw_runtime_free(&mvm->fwrt);
1450 mutex_destroy(&mvm->mutex);
1451
1452 if (mvm->mei_registered)
1453 iwl_mei_unregister_complete();
1454
1455 ieee80211_free_hw(mvm->hw);
1456 }
1457
1458 struct iwl_async_handler_entry {
1459 struct list_head list;
1460 struct iwl_rx_cmd_buffer rxb;
1461 enum iwl_rx_handler_context context;
1462 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1463 };
1464
iwl_mvm_async_handlers_purge(struct iwl_mvm * mvm)1465 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
1466 {
1467 struct iwl_async_handler_entry *entry, *tmp;
1468
1469 spin_lock_bh(&mvm->async_handlers_lock);
1470 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
1471 iwl_free_rxb(&entry->rxb);
1472 list_del(&entry->list);
1473 kfree(entry);
1474 }
1475 spin_unlock_bh(&mvm->async_handlers_lock);
1476 }
1477
iwl_mvm_async_handlers_wk(struct work_struct * wk)1478 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
1479 {
1480 struct iwl_mvm *mvm =
1481 container_of(wk, struct iwl_mvm, async_handlers_wk);
1482 struct iwl_async_handler_entry *entry, *tmp;
1483 LIST_HEAD(local_list);
1484
1485 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
1486
1487 /*
1488 * Sync with Rx path with a lock. Remove all the entries from this list,
1489 * add them to a local one (lock free), and then handle them.
1490 */
1491 spin_lock_bh(&mvm->async_handlers_lock);
1492 list_splice_init(&mvm->async_handlers_list, &local_list);
1493 spin_unlock_bh(&mvm->async_handlers_lock);
1494
1495 list_for_each_entry_safe(entry, tmp, &local_list, list) {
1496 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1497 mutex_lock(&mvm->mutex);
1498 entry->fn(mvm, &entry->rxb);
1499 iwl_free_rxb(&entry->rxb);
1500 list_del(&entry->list);
1501 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1502 mutex_unlock(&mvm->mutex);
1503 kfree(entry);
1504 }
1505 }
1506
iwl_mvm_rx_check_trigger(struct iwl_mvm * mvm,struct iwl_rx_packet * pkt)1507 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
1508 struct iwl_rx_packet *pkt)
1509 {
1510 struct iwl_fw_dbg_trigger_tlv *trig;
1511 struct iwl_fw_dbg_trigger_cmd *cmds_trig;
1512 int i;
1513
1514 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL,
1515 FW_DBG_TRIGGER_FW_NOTIF);
1516 if (!trig)
1517 return;
1518
1519 cmds_trig = (void *)trig->data;
1520
1521 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
1522 /* don't collect on CMD 0 */
1523 if (!cmds_trig->cmds[i].cmd_id)
1524 break;
1525
1526 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
1527 cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
1528 continue;
1529
1530 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
1531 "CMD 0x%02x.%02x received",
1532 pkt->hdr.group_id, pkt->hdr.cmd);
1533 break;
1534 }
1535 }
1536
iwl_mvm_rx_common(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb,struct iwl_rx_packet * pkt)1537 static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
1538 struct iwl_rx_cmd_buffer *rxb,
1539 struct iwl_rx_packet *pkt)
1540 {
1541 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt);
1542 int i;
1543 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt };
1544
1545 iwl_dbg_tlv_time_point(&mvm->fwrt,
1546 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data);
1547 iwl_mvm_rx_check_trigger(mvm, pkt);
1548
1549 /*
1550 * Do the notification wait before RX handlers so
1551 * even if the RX handler consumes the RXB we have
1552 * access to it in the notification wait entry.
1553 */
1554 iwl_notification_wait_notify(&mvm->notif_wait, pkt);
1555
1556 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
1557 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
1558 struct iwl_async_handler_entry *entry;
1559
1560 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
1561 continue;
1562
1563 if (unlikely(pkt_len < rx_h->min_size))
1564 return;
1565
1566 if (rx_h->context == RX_HANDLER_SYNC) {
1567 rx_h->fn(mvm, rxb);
1568 return;
1569 }
1570
1571 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
1572 /* we can't do much... */
1573 if (!entry)
1574 return;
1575
1576 entry->rxb._page = rxb_steal_page(rxb);
1577 entry->rxb._offset = rxb->_offset;
1578 entry->rxb._rx_page_order = rxb->_rx_page_order;
1579 entry->fn = rx_h->fn;
1580 entry->context = rx_h->context;
1581 spin_lock(&mvm->async_handlers_lock);
1582 list_add_tail(&entry->list, &mvm->async_handlers_list);
1583 spin_unlock(&mvm->async_handlers_lock);
1584 schedule_work(&mvm->async_handlers_wk);
1585 break;
1586 }
1587 }
1588
iwl_mvm_rx(struct iwl_op_mode * op_mode,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb)1589 static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
1590 struct napi_struct *napi,
1591 struct iwl_rx_cmd_buffer *rxb)
1592 {
1593 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1594 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1595 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1596
1597 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1598 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
1599 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
1600 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
1601 else
1602 iwl_mvm_rx_common(mvm, rxb, pkt);
1603 }
1604
iwl_mvm_rx_mq(struct iwl_op_mode * op_mode,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb)1605 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
1606 struct napi_struct *napi,
1607 struct iwl_rx_cmd_buffer *rxb)
1608 {
1609 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1610 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1611 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1612
1613 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1614 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
1615 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1616 RX_QUEUES_NOTIFICATION)))
1617 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0);
1618 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
1619 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
1620 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE))
1621 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0);
1622 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF))
1623 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0);
1624 else
1625 iwl_mvm_rx_common(mvm, rxb, pkt);
1626 }
1627
iwl_mvm_async_cb(struct iwl_op_mode * op_mode,const struct iwl_device_cmd * cmd)1628 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
1629 const struct iwl_device_cmd *cmd)
1630 {
1631 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1632
1633 /*
1634 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
1635 * commands that need to block the Tx queues.
1636 */
1637 iwl_trans_block_txq_ptrs(mvm->trans, false);
1638 }
1639
iwl_mvm_is_static_queue(struct iwl_mvm * mvm,int queue)1640 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue)
1641 {
1642 return queue == mvm->aux_queue || queue == mvm->probe_queue ||
1643 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue;
1644 }
1645
iwl_mvm_queue_state_change(struct iwl_op_mode * op_mode,int hw_queue,bool start)1646 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode,
1647 int hw_queue, bool start)
1648 {
1649 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1650 struct ieee80211_sta *sta;
1651 struct ieee80211_txq *txq;
1652 struct iwl_mvm_txq *mvmtxq;
1653 int i;
1654 unsigned long tid_bitmap;
1655 struct iwl_mvm_sta *mvmsta;
1656 u8 sta_id;
1657
1658 sta_id = iwl_mvm_has_new_tx_api(mvm) ?
1659 mvm->tvqm_info[hw_queue].sta_id :
1660 mvm->queue_info[hw_queue].ra_sta_id;
1661
1662 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations))
1663 return;
1664
1665 rcu_read_lock();
1666
1667 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1668 if (IS_ERR_OR_NULL(sta))
1669 goto out;
1670 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1671
1672 if (iwl_mvm_is_static_queue(mvm, hw_queue)) {
1673 if (!start)
1674 ieee80211_stop_queues(mvm->hw);
1675 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1676 ieee80211_wake_queues(mvm->hw);
1677
1678 goto out;
1679 }
1680
1681 if (iwl_mvm_has_new_tx_api(mvm)) {
1682 int tid = mvm->tvqm_info[hw_queue].txq_tid;
1683
1684 tid_bitmap = BIT(tid);
1685 } else {
1686 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap;
1687 }
1688
1689 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
1690 int tid = i;
1691
1692 if (tid == IWL_MAX_TID_COUNT)
1693 tid = IEEE80211_NUM_TIDS;
1694
1695 txq = sta->txq[tid];
1696 mvmtxq = iwl_mvm_txq_from_mac80211(txq);
1697 mvmtxq->stopped = !start;
1698
1699 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1700 iwl_mvm_mac_itxq_xmit(mvm->hw, txq);
1701 }
1702
1703 out:
1704 rcu_read_unlock();
1705 }
1706
iwl_mvm_stop_sw_queue(struct iwl_op_mode * op_mode,int hw_queue)1707 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1708 {
1709 iwl_mvm_queue_state_change(op_mode, hw_queue, false);
1710 }
1711
iwl_mvm_wake_sw_queue(struct iwl_op_mode * op_mode,int hw_queue)1712 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1713 {
1714 iwl_mvm_queue_state_change(op_mode, hw_queue, true);
1715 }
1716
iwl_mvm_set_rfkill_state(struct iwl_mvm * mvm)1717 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm)
1718 {
1719 bool state = iwl_mvm_is_radio_killed(mvm);
1720
1721 if (state)
1722 wake_up(&mvm->rx_sync_waitq);
1723
1724 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
1725 }
1726
iwl_mvm_set_hw_ctkill_state(struct iwl_mvm * mvm,bool state)1727 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1728 {
1729 if (state)
1730 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1731 else
1732 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1733
1734 iwl_mvm_set_rfkill_state(mvm);
1735 }
1736
iwl_mvm_get_csme_conn_info(struct iwl_mvm * mvm)1737 struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm)
1738 {
1739 return rcu_dereference_protected(mvm->csme_conn_info,
1740 lockdep_is_held(&mvm->mutex));
1741 }
1742
iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode * op_mode,bool state)1743 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
1744 {
1745 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1746 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done);
1747 bool unified = iwl_mvm_has_unified_ucode(mvm);
1748
1749 if (state)
1750 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1751 else
1752 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1753
1754 iwl_mvm_set_rfkill_state(mvm);
1755
1756 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */
1757 if (rfkill_safe_init_done)
1758 iwl_abort_notification_waits(&mvm->notif_wait);
1759
1760 /*
1761 * Don't ask the transport to stop the firmware. We'll do it
1762 * after cfg80211 takes us down.
1763 */
1764 if (unified)
1765 return false;
1766
1767 /*
1768 * Stop the device if we run OPERATIONAL firmware or if we are in the
1769 * middle of the calibrations.
1770 */
1771 return state && rfkill_safe_init_done;
1772 }
1773
iwl_mvm_free_skb(struct iwl_op_mode * op_mode,struct sk_buff * skb)1774 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1775 {
1776 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1777 struct ieee80211_tx_info *info;
1778
1779 info = IEEE80211_SKB_CB(skb);
1780 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1781 ieee80211_free_txskb(mvm->hw, skb);
1782 }
1783
1784 struct iwl_mvm_reprobe {
1785 struct device *dev;
1786 struct work_struct work;
1787 };
1788
iwl_mvm_reprobe_wk(struct work_struct * wk)1789 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1790 {
1791 struct iwl_mvm_reprobe *reprobe;
1792
1793 reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1794 if (device_reprobe(reprobe->dev))
1795 dev_err(reprobe->dev, "reprobe failed!\n");
1796 put_device(reprobe->dev);
1797 kfree(reprobe);
1798 module_put(THIS_MODULE);
1799 }
1800
iwl_mvm_nic_restart(struct iwl_mvm * mvm,bool fw_error)1801 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1802 {
1803 iwl_abort_notification_waits(&mvm->notif_wait);
1804 iwl_dbg_tlv_del_timers(mvm->trans);
1805
1806 /*
1807 * This is a bit racy, but worst case we tell mac80211 about
1808 * a stopped/aborted scan when that was already done which
1809 * is not a problem. It is necessary to abort any os scan
1810 * here because mac80211 requires having the scan cleared
1811 * before restarting.
1812 * We'll reset the scan_status to NONE in restart cleanup in
1813 * the next start() call from mac80211. If restart isn't called
1814 * (no fw restart) scan status will stay busy.
1815 */
1816 iwl_mvm_report_scan_aborted(mvm);
1817
1818 /*
1819 * If we're restarting already, don't cycle restarts.
1820 * If INIT fw asserted, it will likely fail again.
1821 * If WoWLAN fw asserted, don't restart either, mac80211
1822 * can't recover this since we're already half suspended.
1823 */
1824 if (!mvm->fw_restart && fw_error) {
1825 iwl_fw_error_collect(&mvm->fwrt, false);
1826 } else if (test_bit(IWL_MVM_STATUS_STARTING,
1827 &mvm->status)) {
1828 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n");
1829 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1830 struct iwl_mvm_reprobe *reprobe;
1831
1832 IWL_ERR(mvm,
1833 "Firmware error during reconfiguration - reprobe!\n");
1834
1835 /*
1836 * get a module reference to avoid doing this while unloading
1837 * anyway and to avoid scheduling a work with code that's
1838 * being removed.
1839 */
1840 if (!try_module_get(THIS_MODULE)) {
1841 IWL_ERR(mvm, "Module is being unloaded - abort\n");
1842 return;
1843 }
1844
1845 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1846 if (!reprobe) {
1847 module_put(THIS_MODULE);
1848 return;
1849 }
1850 reprobe->dev = get_device(mvm->trans->dev);
1851 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1852 schedule_work(&reprobe->work);
1853 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1854 &mvm->status)) {
1855 IWL_ERR(mvm, "HW restart already requested, but not started\n");
1856 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR &&
1857 mvm->hw_registered &&
1858 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {
1859 /* This should be first thing before trying to collect any
1860 * data to avoid endless loops if any HW error happens while
1861 * collecting debug data.
1862 */
1863 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1864
1865 if (mvm->fw->ucode_capa.error_log_size) {
1866 u32 src_size = mvm->fw->ucode_capa.error_log_size;
1867 u32 src_addr = mvm->fw->ucode_capa.error_log_addr;
1868 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC);
1869
1870 if (recover_buf) {
1871 mvm->error_recovery_buf = recover_buf;
1872 iwl_trans_read_mem_bytes(mvm->trans,
1873 src_addr,
1874 recover_buf,
1875 src_size);
1876 }
1877 }
1878
1879 iwl_fw_error_collect(&mvm->fwrt, false);
1880
1881 if (fw_error && mvm->fw_restart > 0) {
1882 mvm->fw_restart--;
1883 ieee80211_restart_hw(mvm->hw);
1884 } else if (mvm->fwrt.trans->dbg.restart_required) {
1885 IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n");
1886 mvm->fwrt.trans->dbg.restart_required = FALSE;
1887 ieee80211_restart_hw(mvm->hw);
1888 } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) {
1889 ieee80211_restart_hw(mvm->hw);
1890 }
1891 }
1892 }
1893
iwl_mvm_nic_error(struct iwl_op_mode * op_mode,bool sync)1894 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync)
1895 {
1896 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1897
1898 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) &&
1899 !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE,
1900 &mvm->status))
1901 iwl_mvm_dump_nic_error_log(mvm);
1902
1903 if (sync) {
1904 iwl_fw_error_collect(&mvm->fwrt, true);
1905 /*
1906 * Currently, the only case for sync=true is during
1907 * shutdown, so just stop in this case. If/when that
1908 * changes, we need to be a bit smarter here.
1909 */
1910 return;
1911 }
1912
1913 /*
1914 * If the firmware crashes while we're already considering it
1915 * to be dead then don't ask for a restart, that cannot do
1916 * anything useful anyway.
1917 */
1918 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status))
1919 return;
1920
1921 iwl_mvm_nic_restart(mvm, false);
1922 }
1923
iwl_mvm_cmd_queue_full(struct iwl_op_mode * op_mode)1924 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1925 {
1926 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1927
1928 WARN_ON(1);
1929 iwl_mvm_nic_restart(mvm, true);
1930 }
1931
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)1932 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode,
1933 enum iwl_fw_ini_time_point tp_id,
1934 union iwl_dbg_tlv_tp_data *tp_data)
1935 {
1936 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1937
1938 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data);
1939 }
1940
1941 #define IWL_MVM_COMMON_OPS \
1942 /* these could be differentiated */ \
1943 .async_cb = iwl_mvm_async_cb, \
1944 .queue_full = iwl_mvm_stop_sw_queue, \
1945 .queue_not_full = iwl_mvm_wake_sw_queue, \
1946 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \
1947 .free_skb = iwl_mvm_free_skb, \
1948 .nic_error = iwl_mvm_nic_error, \
1949 .cmd_queue_full = iwl_mvm_cmd_queue_full, \
1950 .nic_config = iwl_mvm_nic_config, \
1951 /* as we only register one, these MUST be common! */ \
1952 .start = iwl_op_mode_mvm_start, \
1953 .stop = iwl_op_mode_mvm_stop, \
1954 .time_point = iwl_op_mode_mvm_time_point
1955
1956 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1957 IWL_MVM_COMMON_OPS,
1958 .rx = iwl_mvm_rx,
1959 };
1960
iwl_mvm_rx_mq_rss(struct iwl_op_mode * op_mode,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb,unsigned int queue)1961 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1962 struct napi_struct *napi,
1963 struct iwl_rx_cmd_buffer *rxb,
1964 unsigned int queue)
1965 {
1966 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1967 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1968 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1969
1970 if (unlikely(queue >= mvm->trans->num_rx_queues))
1971 return;
1972
1973 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
1974 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
1975 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1976 RX_QUEUES_NOTIFICATION)))
1977 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue);
1978 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1979 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
1980 }
1981
1982 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1983 IWL_MVM_COMMON_OPS,
1984 .rx = iwl_mvm_rx_mq,
1985 .rx_rss = iwl_mvm_rx_mq_rss,
1986 };
1987