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/vmalloc.h>
9 #include <net/mac80211.h>
10
11 #include "fw/notif-wait.h"
12 #include "iwl-trans.h"
13 #include "iwl-op-mode.h"
14 #include "fw/img.h"
15 #include "iwl-debug.h"
16 #include "iwl-drv.h"
17 #include "iwl-modparams.h"
18 #include "mvm.h"
19 #include "iwl-phy-db.h"
20 #include "iwl-eeprom-parse.h"
21 #include "iwl-csr.h"
22 #include "iwl-io.h"
23 #include "iwl-prph.h"
24 #include "rs.h"
25 #include "fw/api/scan.h"
26 #include "time-event.h"
27 #include "fw-api.h"
28 #include "fw/acpi.h"
29
30 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
31 MODULE_DESCRIPTION(DRV_DESCRIPTION);
32 MODULE_AUTHOR(DRV_AUTHOR);
33 MODULE_LICENSE("GPL");
34
35 static const struct iwl_op_mode_ops iwl_mvm_ops;
36 static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
37
38 struct iwl_mvm_mod_params iwlmvm_mod_params = {
39 .power_scheme = IWL_POWER_SCHEME_BPS,
40 /* rest of fields are 0 by default */
41 };
42
43 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, 0444);
44 MODULE_PARM_DESC(init_dbg,
45 "set to true to debug an ASSERT in INIT fw (default: false");
46 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, 0444);
47 MODULE_PARM_DESC(power_scheme,
48 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
49
50 /*
51 * module init and exit functions
52 */
iwl_mvm_init(void)53 static int __init iwl_mvm_init(void)
54 {
55 int ret;
56
57 ret = iwl_mvm_rate_control_register();
58 if (ret) {
59 pr_err("Unable to register rate control algorithm: %d\n", ret);
60 return ret;
61 }
62
63 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
64 if (ret)
65 pr_err("Unable to register MVM op_mode: %d\n", ret);
66
67 return ret;
68 }
69 module_init(iwl_mvm_init);
70
iwl_mvm_exit(void)71 static void __exit iwl_mvm_exit(void)
72 {
73 iwl_opmode_deregister("iwlmvm");
74 iwl_mvm_rate_control_unregister();
75 }
76 module_exit(iwl_mvm_exit);
77
iwl_mvm_nic_config(struct iwl_op_mode * op_mode)78 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
79 {
80 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
81 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
82 u32 reg_val = 0;
83 u32 phy_config = iwl_mvm_get_phy_config(mvm);
84
85 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
86 FW_PHY_CFG_RADIO_TYPE_POS;
87 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
88 FW_PHY_CFG_RADIO_STEP_POS;
89 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
90 FW_PHY_CFG_RADIO_DASH_POS;
91
92 /* SKU control */
93 reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
94 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
95 reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
96 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;
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_DASH |
122 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
123 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
124 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
125 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
126 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
127 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI |
128 CSR_HW_IF_CONFIG_REG_D3_DEBUG,
129 reg_val);
130
131 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
132 radio_cfg_step, radio_cfg_dash);
133
134 /*
135 * W/A : NIC is stuck in a reset state after Early PCIe power off
136 * (PCIe power is lost before PERST# is asserted), causing ME FW
137 * to lose ownership and not being able to obtain it back.
138 */
139 if (!mvm->trans->cfg->apmg_not_supported)
140 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
141 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
142 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
143 }
144
iwl_mvm_rx_monitor_notif(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)145 static void iwl_mvm_rx_monitor_notif(struct iwl_mvm *mvm,
146 struct iwl_rx_cmd_buffer *rxb)
147 {
148 struct iwl_rx_packet *pkt = rxb_addr(rxb);
149 struct iwl_datapath_monitor_notif *notif = (void *)pkt->data;
150 struct ieee80211_supported_band *sband;
151 const struct ieee80211_sta_he_cap *he_cap;
152 struct ieee80211_vif *vif;
153
154 if (notif->type != cpu_to_le32(IWL_DP_MON_NOTIF_TYPE_EXT_CCA))
155 return;
156
157 vif = iwl_mvm_get_vif_by_macid(mvm, notif->mac_id);
158 if (!vif || vif->type != NL80211_IFTYPE_STATION)
159 return;
160
161 if (!vif->bss_conf.chandef.chan ||
162 vif->bss_conf.chandef.chan->band != NL80211_BAND_2GHZ ||
163 vif->bss_conf.chandef.width < NL80211_CHAN_WIDTH_40)
164 return;
165
166 if (!vif->bss_conf.assoc)
167 return;
168
169 /* this shouldn't happen *again*, ignore it */
170 if (mvm->cca_40mhz_workaround)
171 return;
172
173 /*
174 * We'll decrement this on disconnect - so set to 2 since we'll
175 * still have to disconnect from the current AP first.
176 */
177 mvm->cca_40mhz_workaround = 2;
178
179 /*
180 * This capability manipulation isn't really ideal, but it's the
181 * easiest choice - otherwise we'd have to do some major changes
182 * in mac80211 to support this, which isn't worth it. This does
183 * mean that userspace may have outdated information, but that's
184 * actually not an issue at all.
185 */
186 sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
187
188 WARN_ON(!sband->ht_cap.ht_supported);
189 WARN_ON(!(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40));
190 sband->ht_cap.cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
191
192 he_cap = ieee80211_get_he_iftype_cap(sband,
193 ieee80211_vif_type_p2p(vif));
194
195 if (he_cap) {
196 /* we know that ours is writable */
197 struct ieee80211_sta_he_cap *he = (void *)he_cap;
198
199 WARN_ON(!he->has_he);
200 WARN_ON(!(he->he_cap_elem.phy_cap_info[0] &
201 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G));
202 he->he_cap_elem.phy_cap_info[0] &=
203 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
204 }
205
206 ieee80211_disconnect(vif, true);
207 }
208
iwl_mvm_apply_fw_smps_request(struct ieee80211_vif * vif)209 void iwl_mvm_apply_fw_smps_request(struct ieee80211_vif *vif)
210 {
211 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
212 struct iwl_mvm *mvm = mvmvif->mvm;
213 enum ieee80211_smps_mode mode = IEEE80211_SMPS_AUTOMATIC;
214
215 if (mvm->fw_static_smps_request &&
216 vif->bss_conf.chandef.width == NL80211_CHAN_WIDTH_160 &&
217 vif->bss_conf.he_support)
218 mode = IEEE80211_SMPS_STATIC;
219
220 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_FW, mode);
221 }
222
iwl_mvm_intf_dual_chain_req(void * data,u8 * mac,struct ieee80211_vif * vif)223 static void iwl_mvm_intf_dual_chain_req(void *data, u8 *mac,
224 struct ieee80211_vif *vif)
225 {
226 iwl_mvm_apply_fw_smps_request(vif);
227 }
228
iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb)229 static void iwl_mvm_rx_thermal_dual_chain_req(struct iwl_mvm *mvm,
230 struct iwl_rx_cmd_buffer *rxb)
231 {
232 struct iwl_rx_packet *pkt = rxb_addr(rxb);
233 struct iwl_thermal_dual_chain_request *req = (void *)pkt->data;
234
235 /*
236 * We could pass it to the iterator data, but also need to remember
237 * it for new interfaces that are added while in this state.
238 */
239 mvm->fw_static_smps_request =
240 req->event == cpu_to_le32(THERMAL_DUAL_CHAIN_REQ_DISABLE);
241 ieee80211_iterate_interfaces(mvm->hw,
242 IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER,
243 iwl_mvm_intf_dual_chain_req, NULL);
244 }
245
246 /**
247 * enum iwl_rx_handler_context context for Rx handler
248 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path
249 * which can't acquire mvm->mutex.
250 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex
251 * (and only in this case!), it should be set as ASYNC. In that case,
252 * it will be called from a worker with mvm->mutex held.
253 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the
254 * mutex itself, it will be called from a worker without mvm->mutex held.
255 */
256 enum iwl_rx_handler_context {
257 RX_HANDLER_SYNC,
258 RX_HANDLER_ASYNC_LOCKED,
259 RX_HANDLER_ASYNC_UNLOCKED,
260 };
261
262 /**
263 * struct iwl_rx_handlers handler for FW notification
264 * @cmd_id: command id
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(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif,
340 RX_HANDLER_SYNC, struct iwl_card_state_notif),
341
342 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
343 RX_HANDLER_SYNC, struct iwl_missed_beacons_notif),
344
345 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC,
346 struct iwl_error_resp),
347 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
348 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC,
349 struct iwl_uapsd_misbehaving_ap_notif),
350 RX_HANDLER_NO_SIZE(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif,
351 RX_HANDLER_ASYNC_LOCKED),
352 RX_HANDLER_GRP_NO_SIZE(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
353 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED),
354 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION,
355 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC,
356 struct ct_kill_notif),
357
358 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
359 RX_HANDLER_ASYNC_LOCKED,
360 struct iwl_tdls_channel_switch_notif),
361 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif,
362 RX_HANDLER_SYNC, struct iwl_mfuart_load_notif_v1),
363 RX_HANDLER_GRP(LOCATION_GROUP, TOF_RESPONDER_STATS,
364 iwl_mvm_ftm_responder_stats, RX_HANDLER_ASYNC_LOCKED,
365 struct iwl_ftm_responder_stats),
366
367 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_RANGE_RESPONSE_NOTIF,
368 iwl_mvm_ftm_range_resp, RX_HANDLER_ASYNC_LOCKED),
369 RX_HANDLER_GRP_NO_SIZE(LOCATION_GROUP, TOF_LC_NOTIF,
370 iwl_mvm_ftm_lc_notif, RX_HANDLER_ASYNC_LOCKED),
371
372 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF,
373 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC,
374 struct iwl_mfu_assert_dump_notif),
375 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF,
376 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC,
377 struct iwl_stored_beacon_notif_v2),
378 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF,
379 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC,
380 struct iwl_mu_group_mgmt_notif),
381 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF,
382 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC,
383 struct iwl_mvm_pm_state_notification),
384 RX_HANDLER_GRP(MAC_CONF_GROUP, PROBE_RESPONSE_DATA_NOTIF,
385 iwl_mvm_probe_resp_data_notif,
386 RX_HANDLER_ASYNC_LOCKED,
387 struct iwl_probe_resp_data_notif),
388 RX_HANDLER_GRP(MAC_CONF_GROUP, CHANNEL_SWITCH_NOA_NOTIF,
389 iwl_mvm_channel_switch_noa_notif,
390 RX_HANDLER_SYNC, struct iwl_channel_switch_noa_notif),
391 RX_HANDLER_GRP(DATA_PATH_GROUP, MONITOR_NOTIF,
392 iwl_mvm_rx_monitor_notif, RX_HANDLER_ASYNC_LOCKED,
393 struct iwl_datapath_monitor_notif),
394
395 RX_HANDLER_GRP(DATA_PATH_GROUP, THERMAL_DUAL_CHAIN_REQUEST,
396 iwl_mvm_rx_thermal_dual_chain_req,
397 RX_HANDLER_ASYNC_LOCKED,
398 struct iwl_thermal_dual_chain_request),
399 };
400 #undef RX_HANDLER
401 #undef RX_HANDLER_GRP
402
403 /* Please keep this array *SORTED* by hex value.
404 * Access is done through binary search
405 */
406 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
407 HCMD_NAME(UCODE_ALIVE_NTFY),
408 HCMD_NAME(REPLY_ERROR),
409 HCMD_NAME(ECHO_CMD),
410 HCMD_NAME(INIT_COMPLETE_NOTIF),
411 HCMD_NAME(PHY_CONTEXT_CMD),
412 HCMD_NAME(DBG_CFG),
413 HCMD_NAME(SCAN_CFG_CMD),
414 HCMD_NAME(SCAN_REQ_UMAC),
415 HCMD_NAME(SCAN_ABORT_UMAC),
416 HCMD_NAME(SCAN_COMPLETE_UMAC),
417 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID),
418 HCMD_NAME(ADD_STA_KEY),
419 HCMD_NAME(ADD_STA),
420 HCMD_NAME(REMOVE_STA),
421 HCMD_NAME(FW_GET_ITEM_CMD),
422 HCMD_NAME(TX_CMD),
423 HCMD_NAME(SCD_QUEUE_CFG),
424 HCMD_NAME(TXPATH_FLUSH),
425 HCMD_NAME(MGMT_MCAST_KEY),
426 HCMD_NAME(WEP_KEY),
427 HCMD_NAME(SHARED_MEM_CFG),
428 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
429 HCMD_NAME(MAC_CONTEXT_CMD),
430 HCMD_NAME(TIME_EVENT_CMD),
431 HCMD_NAME(TIME_EVENT_NOTIFICATION),
432 HCMD_NAME(BINDING_CONTEXT_CMD),
433 HCMD_NAME(TIME_QUOTA_CMD),
434 HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
435 HCMD_NAME(LEDS_CMD),
436 HCMD_NAME(LQ_CMD),
437 HCMD_NAME(FW_PAGING_BLOCK_CMD),
438 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
439 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
440 HCMD_NAME(HOT_SPOT_CMD),
441 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
442 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
443 HCMD_NAME(BT_COEX_CI),
444 HCMD_NAME(PHY_CONFIGURATION_CMD),
445 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
446 HCMD_NAME(PHY_DB_CMD),
447 HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
448 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
449 HCMD_NAME(POWER_TABLE_CMD),
450 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
451 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
452 HCMD_NAME(DC2DC_CONFIG_CMD),
453 HCMD_NAME(NVM_ACCESS_CMD),
454 HCMD_NAME(BEACON_NOTIFICATION),
455 HCMD_NAME(BEACON_TEMPLATE_CMD),
456 HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
457 HCMD_NAME(BT_CONFIG),
458 HCMD_NAME(STATISTICS_CMD),
459 HCMD_NAME(STATISTICS_NOTIFICATION),
460 HCMD_NAME(EOSP_NOTIFICATION),
461 HCMD_NAME(REDUCE_TX_POWER_CMD),
462 HCMD_NAME(CARD_STATE_NOTIFICATION),
463 HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
464 HCMD_NAME(TDLS_CONFIG_CMD),
465 HCMD_NAME(MAC_PM_POWER_TABLE),
466 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
467 HCMD_NAME(MFUART_LOAD_NOTIFICATION),
468 HCMD_NAME(RSS_CONFIG_CMD),
469 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
470 HCMD_NAME(REPLY_RX_PHY_CMD),
471 HCMD_NAME(REPLY_RX_MPDU_CMD),
472 HCMD_NAME(BAR_FRAME_RELEASE),
473 HCMD_NAME(FRAME_RELEASE),
474 HCMD_NAME(BA_NOTIF),
475 HCMD_NAME(MCC_UPDATE_CMD),
476 HCMD_NAME(MCC_CHUB_UPDATE_CMD),
477 HCMD_NAME(MARKER_CMD),
478 HCMD_NAME(BT_PROFILE_NOTIFICATION),
479 HCMD_NAME(BCAST_FILTER_CMD),
480 HCMD_NAME(MCAST_FILTER_CMD),
481 HCMD_NAME(REPLY_SF_CFG_CMD),
482 HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
483 HCMD_NAME(D3_CONFIG_CMD),
484 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
485 HCMD_NAME(OFFLOADS_QUERY_CMD),
486 HCMD_NAME(MATCH_FOUND_NOTIFICATION),
487 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
488 HCMD_NAME(WOWLAN_PATTERNS),
489 HCMD_NAME(WOWLAN_CONFIGURATION),
490 HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
491 HCMD_NAME(WOWLAN_TKIP_PARAM),
492 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
493 HCMD_NAME(WOWLAN_GET_STATUSES),
494 HCMD_NAME(SCAN_ITERATION_COMPLETE),
495 HCMD_NAME(D0I3_END_CMD),
496 HCMD_NAME(LTR_CONFIG),
497 HCMD_NAME(LDBG_CONFIG_CMD),
498 };
499
500 /* Please keep this array *SORTED* by hex value.
501 * Access is done through binary search
502 */
503 static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
504 HCMD_NAME(SHARED_MEM_CFG_CMD),
505 HCMD_NAME(INIT_EXTENDED_CFG_CMD),
506 HCMD_NAME(FW_ERROR_RECOVERY_CMD),
507 };
508
509 /* Please keep this array *SORTED* by hex value.
510 * Access is done through binary search
511 */
512 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
513 HCMD_NAME(CHANNEL_SWITCH_TIME_EVENT_CMD),
514 HCMD_NAME(SESSION_PROTECTION_CMD),
515 HCMD_NAME(SESSION_PROTECTION_NOTIF),
516 HCMD_NAME(CHANNEL_SWITCH_NOA_NOTIF),
517 };
518
519 /* Please keep this array *SORTED* by hex value.
520 * Access is done through binary search
521 */
522 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
523 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
524 HCMD_NAME(CTDP_CONFIG_CMD),
525 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
526 HCMD_NAME(GEO_TX_POWER_LIMIT),
527 HCMD_NAME(CT_KILL_NOTIFICATION),
528 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
529 };
530
531 /* Please keep this array *SORTED* by hex value.
532 * Access is done through binary search
533 */
534 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
535 HCMD_NAME(DQA_ENABLE_CMD),
536 HCMD_NAME(UPDATE_MU_GROUPS_CMD),
537 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
538 HCMD_NAME(STA_HE_CTXT_CMD),
539 HCMD_NAME(RFH_QUEUE_CONFIG_CMD),
540 HCMD_NAME(TLC_MNG_CONFIG_CMD),
541 HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD),
542 HCMD_NAME(MONITOR_NOTIF),
543 HCMD_NAME(THERMAL_DUAL_CHAIN_REQUEST),
544 HCMD_NAME(STA_PM_NOTIF),
545 HCMD_NAME(MU_GROUP_MGMT_NOTIF),
546 HCMD_NAME(RX_QUEUES_NOTIFICATION),
547 };
548
549 /* Please keep this array *SORTED* by hex value.
550 * Access is done through binary search
551 */
552 static const struct iwl_hcmd_names iwl_mvm_location_names[] = {
553 HCMD_NAME(TOF_RANGE_REQ_CMD),
554 HCMD_NAME(TOF_CONFIG_CMD),
555 HCMD_NAME(TOF_RANGE_ABORT_CMD),
556 HCMD_NAME(TOF_RANGE_REQ_EXT_CMD),
557 HCMD_NAME(TOF_RESPONDER_CONFIG_CMD),
558 HCMD_NAME(TOF_RESPONDER_DYN_CONFIG_CMD),
559 HCMD_NAME(TOF_LC_NOTIF),
560 HCMD_NAME(TOF_RESPONDER_STATS),
561 HCMD_NAME(TOF_MCSI_DEBUG_NOTIF),
562 HCMD_NAME(TOF_RANGE_RESPONSE_NOTIF),
563 };
564
565 /* Please keep this array *SORTED* by hex value.
566 * Access is done through binary search
567 */
568 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
569 HCMD_NAME(STORED_BEACON_NTF),
570 };
571
572 /* Please keep this array *SORTED* by hex value.
573 * Access is done through binary search
574 */
575 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = {
576 HCMD_NAME(NVM_ACCESS_COMPLETE),
577 HCMD_NAME(NVM_GET_INFO),
578 HCMD_NAME(TAS_CONFIG),
579 };
580
581 static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
582 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
583 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
584 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
585 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
586 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
587 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
588 [LOCATION_GROUP] = HCMD_ARR(iwl_mvm_location_names),
589 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
590 [REGULATORY_AND_NVM_GROUP] =
591 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names),
592 };
593
594 /* this forward declaration can avoid to export the function */
595 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
596
iwl_mvm_min_backoff(struct iwl_mvm * mvm)597 static u32 iwl_mvm_min_backoff(struct iwl_mvm *mvm)
598 {
599 const struct iwl_pwr_tx_backoff *backoff = mvm->cfg->pwr_tx_backoffs;
600 u64 dflt_pwr_limit;
601
602 if (!backoff)
603 return 0;
604
605 dflt_pwr_limit = iwl_acpi_get_pwr_limit(mvm->dev);
606
607 while (backoff->pwr) {
608 if (dflt_pwr_limit >= backoff->pwr)
609 return backoff->backoff;
610
611 backoff++;
612 }
613
614 return 0;
615 }
616
iwl_mvm_tx_unblock_dwork(struct work_struct * work)617 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
618 {
619 struct iwl_mvm *mvm =
620 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work);
621 struct ieee80211_vif *tx_blocked_vif;
622 struct iwl_mvm_vif *mvmvif;
623
624 mutex_lock(&mvm->mutex);
625
626 tx_blocked_vif =
627 rcu_dereference_protected(mvm->csa_tx_blocked_vif,
628 lockdep_is_held(&mvm->mutex));
629
630 if (!tx_blocked_vif)
631 goto unlock;
632
633 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
634 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
635 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
636 unlock:
637 mutex_unlock(&mvm->mutex);
638 }
639
iwl_mvm_fwrt_dump_start(void * ctx)640 static int iwl_mvm_fwrt_dump_start(void *ctx)
641 {
642 struct iwl_mvm *mvm = ctx;
643
644 mutex_lock(&mvm->mutex);
645
646 return 0;
647 }
648
iwl_mvm_fwrt_dump_end(void * ctx)649 static void iwl_mvm_fwrt_dump_end(void *ctx)
650 {
651 struct iwl_mvm *mvm = ctx;
652
653 mutex_unlock(&mvm->mutex);
654 }
655
iwl_mvm_fwrt_fw_running(void * ctx)656 static bool iwl_mvm_fwrt_fw_running(void *ctx)
657 {
658 return iwl_mvm_firmware_running(ctx);
659 }
660
iwl_mvm_fwrt_send_hcmd(void * ctx,struct iwl_host_cmd * host_cmd)661 static int iwl_mvm_fwrt_send_hcmd(void *ctx, struct iwl_host_cmd *host_cmd)
662 {
663 struct iwl_mvm *mvm = (struct iwl_mvm *)ctx;
664 int ret;
665
666 mutex_lock(&mvm->mutex);
667 ret = iwl_mvm_send_cmd(mvm, host_cmd);
668 mutex_unlock(&mvm->mutex);
669
670 return ret;
671 }
672
iwl_mvm_d3_debug_enable(void * ctx)673 static bool iwl_mvm_d3_debug_enable(void *ctx)
674 {
675 return IWL_MVM_D3_DEBUG;
676 }
677
678 static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = {
679 .dump_start = iwl_mvm_fwrt_dump_start,
680 .dump_end = iwl_mvm_fwrt_dump_end,
681 .fw_running = iwl_mvm_fwrt_fw_running,
682 .send_hcmd = iwl_mvm_fwrt_send_hcmd,
683 .d3_debug_enable = iwl_mvm_d3_debug_enable,
684 };
685
iwl_mvm_start_get_nvm(struct iwl_mvm * mvm)686 static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm)
687 {
688 int ret;
689
690 rtnl_lock();
691 wiphy_lock(mvm->hw->wiphy);
692 mutex_lock(&mvm->mutex);
693
694 ret = iwl_run_init_mvm_ucode(mvm);
695
696 if (ret && ret != -ERFKILL)
697 iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER);
698 if (!ret && iwl_mvm_is_lar_supported(mvm)) {
699 mvm->hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
700 ret = iwl_mvm_init_mcc(mvm);
701 }
702
703 if (!iwlmvm_mod_params.init_dbg || !ret)
704 iwl_mvm_stop_device(mvm);
705
706 mutex_unlock(&mvm->mutex);
707 wiphy_unlock(mvm->hw->wiphy);
708 rtnl_unlock();
709
710 if (ret < 0)
711 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
712
713 return ret;
714 }
715
iwl_mvm_start_post_nvm(struct iwl_mvm * mvm)716 static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm)
717 {
718 int ret;
719
720 iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
721
722 ret = iwl_mvm_mac_setup_register(mvm);
723 if (ret)
724 return ret;
725 mvm->hw_registered = true;
726
727 iwl_mvm_dbgfs_register(mvm);
728
729 return 0;
730 }
731
732 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)733 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
734 const struct iwl_fw *fw, struct dentry *dbgfs_dir)
735 {
736 struct ieee80211_hw *hw;
737 struct iwl_op_mode *op_mode;
738 struct iwl_mvm *mvm;
739 struct iwl_trans_config trans_cfg = {};
740 static const u8 no_reclaim_cmds[] = {
741 TX_CMD,
742 };
743 int err, scan_size;
744 u32 min_backoff;
745 enum iwl_amsdu_size rb_size_default;
746
747 /*
748 * We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station
749 * index all over the driver - check that its value corresponds to the
750 * array size.
751 */
752 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) !=
753 IWL_MVM_STATION_COUNT_MAX);
754
755 /********************************
756 * 1. Allocating and configuring HW data
757 ********************************/
758 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
759 sizeof(struct iwl_mvm),
760 &iwl_mvm_hw_ops);
761 if (!hw)
762 return NULL;
763
764 hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
765
766 if (cfg->max_tx_agg_size)
767 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
768 else
769 hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
770
771 op_mode = hw->priv;
772
773 mvm = IWL_OP_MODE_GET_MVM(op_mode);
774 mvm->dev = trans->dev;
775 mvm->trans = trans;
776 mvm->cfg = cfg;
777 mvm->fw = fw;
778 mvm->hw = hw;
779
780 iwl_fw_runtime_init(&mvm->fwrt, trans, fw, &iwl_mvm_fwrt_ops, mvm,
781 dbgfs_dir);
782
783 iwl_mvm_get_acpi_tables(mvm);
784
785 mvm->init_status = 0;
786
787 if (iwl_mvm_has_new_rx_api(mvm)) {
788 op_mode->ops = &iwl_mvm_ops_mq;
789 trans->rx_mpdu_cmd_hdr_size =
790 (trans->trans_cfg->device_family >=
791 IWL_DEVICE_FAMILY_AX210) ?
792 sizeof(struct iwl_rx_mpdu_desc) :
793 IWL_RX_DESC_SIZE_V1;
794 } else {
795 op_mode->ops = &iwl_mvm_ops;
796 trans->rx_mpdu_cmd_hdr_size =
797 sizeof(struct iwl_rx_mpdu_res_start);
798
799 if (WARN_ON(trans->num_rx_queues > 1))
800 goto out_free;
801 }
802
803 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0;
804
805 if (iwl_mvm_has_new_tx_api(mvm)) {
806 /*
807 * If we have the new TX/queue allocation API initialize them
808 * all to invalid numbers. We'll rewrite the ones that we need
809 * later, but that doesn't happen for all of them all of the
810 * time (e.g. P2P Device is optional), and if a dynamic queue
811 * ends up getting number 2 (IWL_MVM_DQA_P2P_DEVICE_QUEUE) then
812 * iwl_mvm_is_static_queue() erroneously returns true, and we
813 * might have things getting stuck.
814 */
815 mvm->aux_queue = IWL_MVM_INVALID_QUEUE;
816 mvm->snif_queue = IWL_MVM_INVALID_QUEUE;
817 mvm->probe_queue = IWL_MVM_INVALID_QUEUE;
818 mvm->p2p_dev_queue = IWL_MVM_INVALID_QUEUE;
819 } else {
820 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
821 mvm->snif_queue = IWL_MVM_DQA_INJECT_MONITOR_QUEUE;
822 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
823 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE;
824 }
825
826 mvm->sf_state = SF_UNINIT;
827 if (iwl_mvm_has_unified_ucode(mvm))
828 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_REGULAR);
829 else
830 iwl_fw_set_current_image(&mvm->fwrt, IWL_UCODE_INIT);
831 mvm->drop_bcn_ap_mode = true;
832
833 mutex_init(&mvm->mutex);
834 spin_lock_init(&mvm->async_handlers_lock);
835 INIT_LIST_HEAD(&mvm->time_event_list);
836 INIT_LIST_HEAD(&mvm->aux_roc_te_list);
837 INIT_LIST_HEAD(&mvm->async_handlers_list);
838 spin_lock_init(&mvm->time_event_lock);
839 INIT_LIST_HEAD(&mvm->ftm_initiator.loc_list);
840 INIT_LIST_HEAD(&mvm->ftm_initiator.pasn_list);
841 INIT_LIST_HEAD(&mvm->resp_pasn_list);
842
843 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
844 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
845 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
846 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
847 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
848 INIT_LIST_HEAD(&mvm->add_stream_txqs);
849
850 init_waitqueue_head(&mvm->rx_sync_waitq);
851
852 mvm->queue_sync_state = 0;
853
854 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
855
856 spin_lock_init(&mvm->tcm.lock);
857 INIT_DELAYED_WORK(&mvm->tcm.work, iwl_mvm_tcm_work);
858 mvm->tcm.ts = jiffies;
859 mvm->tcm.ll_ts = jiffies;
860 mvm->tcm.uapsd_nonagg_ts = jiffies;
861
862 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
863
864 mvm->cmd_ver.d0i3_resp =
865 iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, D0I3_END_CMD,
866 0);
867 /* we only support version 1 */
868 if (WARN_ON_ONCE(mvm->cmd_ver.d0i3_resp > 1))
869 goto out_free;
870
871 mvm->cmd_ver.range_resp =
872 iwl_fw_lookup_notif_ver(mvm->fw, LOCATION_GROUP,
873 TOF_RANGE_RESPONSE_NOTIF, 5);
874 /* we only support up to version 8 */
875 if (WARN_ON_ONCE(mvm->cmd_ver.range_resp > 8))
876 goto out_free;
877
878 /*
879 * Populate the state variables that the transport layer needs
880 * to know about.
881 */
882 trans_cfg.op_mode = op_mode;
883 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
884 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
885
886 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
887 rb_size_default = IWL_AMSDU_2K;
888 else
889 rb_size_default = IWL_AMSDU_4K;
890
891 switch (iwlwifi_mod_params.amsdu_size) {
892 case IWL_AMSDU_DEF:
893 trans_cfg.rx_buf_size = rb_size_default;
894 break;
895 case IWL_AMSDU_4K:
896 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
897 break;
898 case IWL_AMSDU_8K:
899 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
900 break;
901 case IWL_AMSDU_12K:
902 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
903 break;
904 default:
905 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
906 iwlwifi_mod_params.amsdu_size);
907 trans_cfg.rx_buf_size = rb_size_default;
908 }
909
910 trans->wide_cmd_header = true;
911 trans_cfg.bc_table_dword =
912 mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_AX210;
913
914 trans_cfg.command_groups = iwl_mvm_groups;
915 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
916
917 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
918 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
919 trans_cfg.scd_set_active = true;
920
921 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
922 driver_data[2]);
923
924 /* Set a short watchdog for the command queue */
925 trans_cfg.cmd_q_wdg_timeout =
926 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
927
928 snprintf(mvm->hw->wiphy->fw_version,
929 sizeof(mvm->hw->wiphy->fw_version),
930 "%s", fw->fw_version);
931
932 trans_cfg.fw_reset_handshake = fw_has_capa(&mvm->fw->ucode_capa,
933 IWL_UCODE_TLV_CAPA_FW_RESET_HANDSHAKE);
934
935 /* Configure transport layer */
936 iwl_trans_configure(mvm->trans, &trans_cfg);
937
938 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
939 trans->dbg.dest_tlv = mvm->fw->dbg.dest_tlv;
940 trans->dbg.n_dest_reg = mvm->fw->dbg.n_dest_reg;
941 memcpy(trans->dbg.conf_tlv, mvm->fw->dbg.conf_tlv,
942 sizeof(trans->dbg.conf_tlv));
943 trans->dbg.trigger_tlv = mvm->fw->dbg.trigger_tlv;
944
945 trans->iml = mvm->fw->iml;
946 trans->iml_len = mvm->fw->iml_len;
947
948 /* set up notification wait support */
949 iwl_notification_wait_init(&mvm->notif_wait);
950
951 /* Init phy db */
952 mvm->phy_db = iwl_phy_db_init(trans);
953 if (!mvm->phy_db) {
954 IWL_ERR(mvm, "Cannot init phy_db\n");
955 goto out_free;
956 }
957
958 IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
959 mvm->trans->name, mvm->trans->hw_rev);
960
961 if (iwlwifi_mod_params.nvm_file)
962 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
963 else
964 IWL_DEBUG_EEPROM(mvm->trans->dev,
965 "working without external nvm file\n");
966
967 err = iwl_trans_start_hw(mvm->trans);
968 if (err)
969 goto out_free;
970
971 scan_size = iwl_mvm_scan_size(mvm);
972
973 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
974 if (!mvm->scan_cmd)
975 goto out_free;
976
977 /* invalidate ids to prevent accidental removal of sta_id 0 */
978 mvm->aux_sta.sta_id = IWL_MVM_INVALID_STA;
979 mvm->snif_sta.sta_id = IWL_MVM_INVALID_STA;
980
981 /* Set EBS as successful as long as not stated otherwise by the FW. */
982 mvm->last_ebs_successful = true;
983
984 min_backoff = iwl_mvm_min_backoff(mvm);
985 iwl_mvm_thermal_initialize(mvm, min_backoff);
986
987 if (!iwl_mvm_has_new_rx_stats_api(mvm))
988 memset(&mvm->rx_stats_v3, 0,
989 sizeof(struct mvm_statistics_rx_v3));
990 else
991 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
992
993 mvm->debugfs_dir = dbgfs_dir;
994
995 if (iwl_mvm_start_get_nvm(mvm))
996 goto out_thermal_exit;
997
998 if (iwl_mvm_start_post_nvm(mvm))
999 goto out_thermal_exit;
1000
1001 return op_mode;
1002
1003 out_thermal_exit:
1004 iwl_mvm_thermal_exit(mvm);
1005 out_free:
1006 iwl_fw_flush_dumps(&mvm->fwrt);
1007 iwl_fw_runtime_free(&mvm->fwrt);
1008
1009 if (iwlmvm_mod_params.init_dbg)
1010 return op_mode;
1011 iwl_phy_db_free(mvm->phy_db);
1012 kfree(mvm->scan_cmd);
1013 iwl_trans_op_mode_leave(trans);
1014
1015 ieee80211_free_hw(mvm->hw);
1016 return NULL;
1017 }
1018
iwl_mvm_stop_device(struct iwl_mvm * mvm)1019 void iwl_mvm_stop_device(struct iwl_mvm *mvm)
1020 {
1021 lockdep_assert_held(&mvm->mutex);
1022
1023 iwl_fw_cancel_timestamp(&mvm->fwrt);
1024
1025 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1026
1027 iwl_fw_dbg_stop_sync(&mvm->fwrt);
1028 iwl_trans_stop_device(mvm->trans);
1029 iwl_free_fw_paging(&mvm->fwrt);
1030 iwl_fw_dump_conf_clear(&mvm->fwrt);
1031 }
1032
iwl_op_mode_mvm_stop(struct iwl_op_mode * op_mode)1033 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
1034 {
1035 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1036 int i;
1037
1038 iwl_mvm_leds_exit(mvm);
1039
1040 iwl_mvm_thermal_exit(mvm);
1041
1042 ieee80211_unregister_hw(mvm->hw);
1043
1044 kfree(mvm->scan_cmd);
1045 kfree(mvm->mcast_filter_cmd);
1046 mvm->mcast_filter_cmd = NULL;
1047
1048 kfree(mvm->error_recovery_buf);
1049 mvm->error_recovery_buf = NULL;
1050
1051 iwl_trans_op_mode_leave(mvm->trans);
1052
1053 iwl_phy_db_free(mvm->phy_db);
1054 mvm->phy_db = NULL;
1055
1056 kfree(mvm->nvm_data);
1057 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
1058 kfree(mvm->nvm_sections[i].data);
1059
1060 cancel_delayed_work_sync(&mvm->tcm.work);
1061
1062 iwl_fw_runtime_free(&mvm->fwrt);
1063 mutex_destroy(&mvm->mutex);
1064
1065 ieee80211_free_hw(mvm->hw);
1066 }
1067
1068 struct iwl_async_handler_entry {
1069 struct list_head list;
1070 struct iwl_rx_cmd_buffer rxb;
1071 enum iwl_rx_handler_context context;
1072 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
1073 };
1074
iwl_mvm_async_handlers_purge(struct iwl_mvm * mvm)1075 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
1076 {
1077 struct iwl_async_handler_entry *entry, *tmp;
1078
1079 spin_lock_bh(&mvm->async_handlers_lock);
1080 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
1081 iwl_free_rxb(&entry->rxb);
1082 list_del(&entry->list);
1083 kfree(entry);
1084 }
1085 spin_unlock_bh(&mvm->async_handlers_lock);
1086 }
1087
iwl_mvm_async_handlers_wk(struct work_struct * wk)1088 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
1089 {
1090 struct iwl_mvm *mvm =
1091 container_of(wk, struct iwl_mvm, async_handlers_wk);
1092 struct iwl_async_handler_entry *entry, *tmp;
1093 LIST_HEAD(local_list);
1094
1095 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
1096
1097 /*
1098 * Sync with Rx path with a lock. Remove all the entries from this list,
1099 * add them to a local one (lock free), and then handle them.
1100 */
1101 spin_lock_bh(&mvm->async_handlers_lock);
1102 list_splice_init(&mvm->async_handlers_list, &local_list);
1103 spin_unlock_bh(&mvm->async_handlers_lock);
1104
1105 list_for_each_entry_safe(entry, tmp, &local_list, list) {
1106 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1107 mutex_lock(&mvm->mutex);
1108 entry->fn(mvm, &entry->rxb);
1109 iwl_free_rxb(&entry->rxb);
1110 list_del(&entry->list);
1111 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
1112 mutex_unlock(&mvm->mutex);
1113 kfree(entry);
1114 }
1115 }
1116
iwl_mvm_rx_check_trigger(struct iwl_mvm * mvm,struct iwl_rx_packet * pkt)1117 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
1118 struct iwl_rx_packet *pkt)
1119 {
1120 struct iwl_fw_dbg_trigger_tlv *trig;
1121 struct iwl_fw_dbg_trigger_cmd *cmds_trig;
1122 int i;
1123
1124 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, NULL,
1125 FW_DBG_TRIGGER_FW_NOTIF);
1126 if (!trig)
1127 return;
1128
1129 cmds_trig = (void *)trig->data;
1130
1131 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
1132 /* don't collect on CMD 0 */
1133 if (!cmds_trig->cmds[i].cmd_id)
1134 break;
1135
1136 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
1137 cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
1138 continue;
1139
1140 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
1141 "CMD 0x%02x.%02x received",
1142 pkt->hdr.group_id, pkt->hdr.cmd);
1143 break;
1144 }
1145 }
1146
iwl_mvm_rx_common(struct iwl_mvm * mvm,struct iwl_rx_cmd_buffer * rxb,struct iwl_rx_packet * pkt)1147 static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
1148 struct iwl_rx_cmd_buffer *rxb,
1149 struct iwl_rx_packet *pkt)
1150 {
1151 unsigned int pkt_len = iwl_rx_packet_payload_len(pkt);
1152 int i;
1153 union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt };
1154
1155 iwl_dbg_tlv_time_point(&mvm->fwrt,
1156 IWL_FW_INI_TIME_POINT_FW_RSP_OR_NOTIF, &tp_data);
1157 iwl_mvm_rx_check_trigger(mvm, pkt);
1158
1159 /*
1160 * Do the notification wait before RX handlers so
1161 * even if the RX handler consumes the RXB we have
1162 * access to it in the notification wait entry.
1163 */
1164 iwl_notification_wait_notify(&mvm->notif_wait, pkt);
1165
1166 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
1167 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
1168 struct iwl_async_handler_entry *entry;
1169
1170 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
1171 continue;
1172
1173 if (unlikely(pkt_len < rx_h->min_size))
1174 return;
1175
1176 if (rx_h->context == RX_HANDLER_SYNC) {
1177 rx_h->fn(mvm, rxb);
1178 return;
1179 }
1180
1181 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
1182 /* we can't do much... */
1183 if (!entry)
1184 return;
1185
1186 entry->rxb._page = rxb_steal_page(rxb);
1187 entry->rxb._offset = rxb->_offset;
1188 entry->rxb._rx_page_order = rxb->_rx_page_order;
1189 entry->fn = rx_h->fn;
1190 entry->context = rx_h->context;
1191 spin_lock(&mvm->async_handlers_lock);
1192 list_add_tail(&entry->list, &mvm->async_handlers_list);
1193 spin_unlock(&mvm->async_handlers_lock);
1194 schedule_work(&mvm->async_handlers_wk);
1195 break;
1196 }
1197 }
1198
iwl_mvm_rx(struct iwl_op_mode * op_mode,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb)1199 static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
1200 struct napi_struct *napi,
1201 struct iwl_rx_cmd_buffer *rxb)
1202 {
1203 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1204 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1205 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1206
1207 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1208 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
1209 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
1210 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
1211 else
1212 iwl_mvm_rx_common(mvm, rxb, pkt);
1213 }
1214
iwl_mvm_rx_mq(struct iwl_op_mode * op_mode,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb)1215 void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
1216 struct napi_struct *napi,
1217 struct iwl_rx_cmd_buffer *rxb)
1218 {
1219 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1220 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1221 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1222
1223 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1224 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
1225 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1226 RX_QUEUES_NOTIFICATION)))
1227 iwl_mvm_rx_queue_notif(mvm, napi, rxb, 0);
1228 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
1229 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
1230 else if (cmd == WIDE_ID(LEGACY_GROUP, BAR_FRAME_RELEASE))
1231 iwl_mvm_rx_bar_frame_release(mvm, napi, rxb, 0);
1232 else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF))
1233 iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0);
1234 else
1235 iwl_mvm_rx_common(mvm, rxb, pkt);
1236 }
1237
iwl_mvm_async_cb(struct iwl_op_mode * op_mode,const struct iwl_device_cmd * cmd)1238 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
1239 const struct iwl_device_cmd *cmd)
1240 {
1241 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1242
1243 /*
1244 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
1245 * commands that need to block the Tx queues.
1246 */
1247 iwl_trans_block_txq_ptrs(mvm->trans, false);
1248 }
1249
iwl_mvm_is_static_queue(struct iwl_mvm * mvm,int queue)1250 static int iwl_mvm_is_static_queue(struct iwl_mvm *mvm, int queue)
1251 {
1252 return queue == mvm->aux_queue || queue == mvm->probe_queue ||
1253 queue == mvm->p2p_dev_queue || queue == mvm->snif_queue;
1254 }
1255
iwl_mvm_queue_state_change(struct iwl_op_mode * op_mode,int hw_queue,bool start)1256 static void iwl_mvm_queue_state_change(struct iwl_op_mode *op_mode,
1257 int hw_queue, bool start)
1258 {
1259 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1260 struct ieee80211_sta *sta;
1261 struct ieee80211_txq *txq;
1262 struct iwl_mvm_txq *mvmtxq;
1263 int i;
1264 unsigned long tid_bitmap;
1265 struct iwl_mvm_sta *mvmsta;
1266 u8 sta_id;
1267
1268 sta_id = iwl_mvm_has_new_tx_api(mvm) ?
1269 mvm->tvqm_info[hw_queue].sta_id :
1270 mvm->queue_info[hw_queue].ra_sta_id;
1271
1272 if (WARN_ON_ONCE(sta_id >= mvm->fw->ucode_capa.num_stations))
1273 return;
1274
1275 rcu_read_lock();
1276
1277 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]);
1278 if (IS_ERR_OR_NULL(sta))
1279 goto out;
1280 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1281
1282 if (iwl_mvm_is_static_queue(mvm, hw_queue)) {
1283 if (!start)
1284 ieee80211_stop_queues(mvm->hw);
1285 else if (mvmsta->sta_state != IEEE80211_STA_NOTEXIST)
1286 ieee80211_wake_queues(mvm->hw);
1287
1288 goto out;
1289 }
1290
1291 if (iwl_mvm_has_new_tx_api(mvm)) {
1292 int tid = mvm->tvqm_info[hw_queue].txq_tid;
1293
1294 tid_bitmap = BIT(tid);
1295 } else {
1296 tid_bitmap = mvm->queue_info[hw_queue].tid_bitmap;
1297 }
1298
1299 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT + 1) {
1300 int tid = i;
1301
1302 if (tid == IWL_MAX_TID_COUNT)
1303 tid = IEEE80211_NUM_TIDS;
1304
1305 txq = sta->txq[tid];
1306 mvmtxq = iwl_mvm_txq_from_mac80211(txq);
1307 if (start)
1308 clear_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state);
1309 else
1310 set_bit(IWL_MVM_TXQ_STATE_STOP_FULL, &mvmtxq->state);
1311
1312 if (start && mvmsta->sta_state != IEEE80211_STA_NOTEXIST) {
1313 local_bh_disable();
1314 iwl_mvm_mac_itxq_xmit(mvm->hw, txq);
1315 local_bh_enable();
1316 }
1317 }
1318
1319 out:
1320 rcu_read_unlock();
1321 }
1322
iwl_mvm_stop_sw_queue(struct iwl_op_mode * op_mode,int hw_queue)1323 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1324 {
1325 iwl_mvm_queue_state_change(op_mode, hw_queue, false);
1326 }
1327
iwl_mvm_wake_sw_queue(struct iwl_op_mode * op_mode,int hw_queue)1328 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1329 {
1330 iwl_mvm_queue_state_change(op_mode, hw_queue, true);
1331 }
1332
iwl_mvm_set_rfkill_state(struct iwl_mvm * mvm)1333 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm)
1334 {
1335 bool state = iwl_mvm_is_radio_killed(mvm);
1336
1337 if (state)
1338 wake_up(&mvm->rx_sync_waitq);
1339
1340 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
1341 }
1342
iwl_mvm_set_hw_ctkill_state(struct iwl_mvm * mvm,bool state)1343 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1344 {
1345 if (state)
1346 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1347 else
1348 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1349
1350 iwl_mvm_set_rfkill_state(mvm);
1351 }
1352
iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode * op_mode,bool state)1353 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
1354 {
1355 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1356 bool rfkill_safe_init_done = READ_ONCE(mvm->rfkill_safe_init_done);
1357 bool unified = iwl_mvm_has_unified_ucode(mvm);
1358
1359 if (state)
1360 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1361 else
1362 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1363
1364 iwl_mvm_set_rfkill_state(mvm);
1365
1366 /* iwl_run_init_mvm_ucode is waiting for results, abort it. */
1367 if (rfkill_safe_init_done)
1368 iwl_abort_notification_waits(&mvm->notif_wait);
1369
1370 /*
1371 * Don't ask the transport to stop the firmware. We'll do it
1372 * after cfg80211 takes us down.
1373 */
1374 if (unified)
1375 return false;
1376
1377 /*
1378 * Stop the device if we run OPERATIONAL firmware or if we are in the
1379 * middle of the calibrations.
1380 */
1381 return state && rfkill_safe_init_done;
1382 }
1383
iwl_mvm_free_skb(struct iwl_op_mode * op_mode,struct sk_buff * skb)1384 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1385 {
1386 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1387 struct ieee80211_tx_info *info;
1388
1389 info = IEEE80211_SKB_CB(skb);
1390 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1391 ieee80211_free_txskb(mvm->hw, skb);
1392 }
1393
1394 struct iwl_mvm_reprobe {
1395 struct device *dev;
1396 struct work_struct work;
1397 };
1398
iwl_mvm_reprobe_wk(struct work_struct * wk)1399 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1400 {
1401 struct iwl_mvm_reprobe *reprobe;
1402
1403 reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1404 if (device_reprobe(reprobe->dev))
1405 dev_err(reprobe->dev, "reprobe failed!\n");
1406 put_device(reprobe->dev);
1407 kfree(reprobe);
1408 module_put(THIS_MODULE);
1409 }
1410
iwl_mvm_nic_restart(struct iwl_mvm * mvm,bool fw_error)1411 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1412 {
1413 iwl_abort_notification_waits(&mvm->notif_wait);
1414 iwl_dbg_tlv_del_timers(mvm->trans);
1415
1416 /*
1417 * This is a bit racy, but worst case we tell mac80211 about
1418 * a stopped/aborted scan when that was already done which
1419 * is not a problem. It is necessary to abort any os scan
1420 * here because mac80211 requires having the scan cleared
1421 * before restarting.
1422 * We'll reset the scan_status to NONE in restart cleanup in
1423 * the next start() call from mac80211. If restart isn't called
1424 * (no fw restart) scan status will stay busy.
1425 */
1426 iwl_mvm_report_scan_aborted(mvm);
1427
1428 /*
1429 * If we're restarting already, don't cycle restarts.
1430 * If INIT fw asserted, it will likely fail again.
1431 * If WoWLAN fw asserted, don't restart either, mac80211
1432 * can't recover this since we're already half suspended.
1433 */
1434 if (!mvm->fw_restart && fw_error) {
1435 iwl_fw_error_collect(&mvm->fwrt, false);
1436 } else if (test_bit(IWL_MVM_STATUS_STARTING,
1437 &mvm->status)) {
1438 IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n");
1439 } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1440 struct iwl_mvm_reprobe *reprobe;
1441
1442 IWL_ERR(mvm,
1443 "Firmware error during reconfiguration - reprobe!\n");
1444
1445 /*
1446 * get a module reference to avoid doing this while unloading
1447 * anyway and to avoid scheduling a work with code that's
1448 * being removed.
1449 */
1450 if (!try_module_get(THIS_MODULE)) {
1451 IWL_ERR(mvm, "Module is being unloaded - abort\n");
1452 return;
1453 }
1454
1455 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1456 if (!reprobe) {
1457 module_put(THIS_MODULE);
1458 return;
1459 }
1460 reprobe->dev = get_device(mvm->trans->dev);
1461 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1462 schedule_work(&reprobe->work);
1463 } else if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1464 &mvm->status)) {
1465 IWL_ERR(mvm, "HW restart already requested, but not started\n");
1466 } else if (mvm->fwrt.cur_fw_img == IWL_UCODE_REGULAR &&
1467 mvm->hw_registered &&
1468 !test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {
1469 /* This should be first thing before trying to collect any
1470 * data to avoid endless loops if any HW error happens while
1471 * collecting debug data.
1472 */
1473 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1474
1475 if (mvm->fw->ucode_capa.error_log_size) {
1476 u32 src_size = mvm->fw->ucode_capa.error_log_size;
1477 u32 src_addr = mvm->fw->ucode_capa.error_log_addr;
1478 u8 *recover_buf = kzalloc(src_size, GFP_ATOMIC);
1479
1480 if (recover_buf) {
1481 mvm->error_recovery_buf = recover_buf;
1482 iwl_trans_read_mem_bytes(mvm->trans,
1483 src_addr,
1484 recover_buf,
1485 src_size);
1486 }
1487 }
1488
1489 iwl_fw_error_collect(&mvm->fwrt, false);
1490
1491 if (fw_error && mvm->fw_restart > 0)
1492 mvm->fw_restart--;
1493 ieee80211_restart_hw(mvm->hw);
1494 }
1495 }
1496
iwl_mvm_nic_error(struct iwl_op_mode * op_mode,bool sync)1497 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync)
1498 {
1499 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1500
1501 if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status))
1502 iwl_mvm_dump_nic_error_log(mvm);
1503
1504 if (sync) {
1505 iwl_fw_error_collect(&mvm->fwrt, true);
1506 /*
1507 * Currently, the only case for sync=true is during
1508 * shutdown, so just stop in this case. If/when that
1509 * changes, we need to be a bit smarter here.
1510 */
1511 return;
1512 }
1513
1514 /*
1515 * If the firmware crashes while we're already considering it
1516 * to be dead then don't ask for a restart, that cannot do
1517 * anything useful anyway.
1518 */
1519 if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status))
1520 return;
1521
1522 iwl_mvm_nic_restart(mvm, true);
1523 }
1524
iwl_mvm_cmd_queue_full(struct iwl_op_mode * op_mode)1525 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1526 {
1527 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1528
1529 WARN_ON(1);
1530 iwl_mvm_nic_restart(mvm, true);
1531 }
1532
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)1533 static void iwl_op_mode_mvm_time_point(struct iwl_op_mode *op_mode,
1534 enum iwl_fw_ini_time_point tp_id,
1535 union iwl_dbg_tlv_tp_data *tp_data)
1536 {
1537 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1538
1539 iwl_dbg_tlv_time_point(&mvm->fwrt, tp_id, tp_data);
1540 }
1541
1542 #define IWL_MVM_COMMON_OPS \
1543 /* these could be differentiated */ \
1544 .async_cb = iwl_mvm_async_cb, \
1545 .queue_full = iwl_mvm_stop_sw_queue, \
1546 .queue_not_full = iwl_mvm_wake_sw_queue, \
1547 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \
1548 .free_skb = iwl_mvm_free_skb, \
1549 .nic_error = iwl_mvm_nic_error, \
1550 .cmd_queue_full = iwl_mvm_cmd_queue_full, \
1551 .nic_config = iwl_mvm_nic_config, \
1552 /* as we only register one, these MUST be common! */ \
1553 .start = iwl_op_mode_mvm_start, \
1554 .stop = iwl_op_mode_mvm_stop, \
1555 .time_point = iwl_op_mode_mvm_time_point
1556
1557 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1558 IWL_MVM_COMMON_OPS,
1559 .rx = iwl_mvm_rx,
1560 };
1561
iwl_mvm_rx_mq_rss(struct iwl_op_mode * op_mode,struct napi_struct * napi,struct iwl_rx_cmd_buffer * rxb,unsigned int queue)1562 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1563 struct napi_struct *napi,
1564 struct iwl_rx_cmd_buffer *rxb,
1565 unsigned int queue)
1566 {
1567 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1568 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1569 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1570
1571 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
1572 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
1573 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1574 RX_QUEUES_NOTIFICATION)))
1575 iwl_mvm_rx_queue_notif(mvm, napi, rxb, queue);
1576 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1577 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
1578 }
1579
1580 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1581 IWL_MVM_COMMON_OPS,
1582 .rx = iwl_mvm_rx_mq,
1583 .rx_rss = iwl_mvm_rx_mq_rss,
1584 };
1585